Showing papers on "Deck published in 1996"
Journal Article•
TL;DR: In this article, the authors investigated the causes of transverse bridge deck cracking and proposed methods to reduce its incidence, and identified and ranked the factors or combinations of factors that contribute to transverse cracking of newly constructed bridge decks.
Abstract: Many concrete bridge decks develop transverse cracks soon after construction. The aims of this project were to investigate the causes of such cracking and to specify methods to reduce its incidence. Literature, research reports, and current practices concerning transverse cracking in bridge decks were reviewed to learn the extent of and the perceived causes of cracking. All departments of transportation in the United States and many foreign transportation departments were surveyed to learn the extent of deck cracking, and standard design and construction practices. The survey response revealed that transverse bridge deck cracking is a severe problem, since about half the bridges in the United States develop early cracking. Construction methods vary widely, as do techniques used in attempts to prevent cracking. The Portland-Columbia Bridge was instrumented and monitored during its redecking. The comprehensive recorded data provide important insight into early bridge behavior and cracking, influenced by thermal loading and concrete shrinkage. Systems of equations to predict shrinkage and thermal stresses in a composite bridge were developed. Behavior predicted by these equations compared favorably with actual measured behavior of the Portland-Columbia Bridge. The equations allow bridge designers to predict thermal and shrinkage stresses that may develop in their designs. Designers can evaluate and compare the thermal and shrinkage stresses of various designs. Analytical studies using the derived equations evaluated the influence of various material and geometry factors on deck stresses and cracking. The analyses examined the effects of various concrete properties, including modulus of elasticity, creep, drying shrinkage, and coefficient of thermal expansion. Girders were either steel or concrete, small or large. Simply-supported and continuous spans were analyzed. The effects of deck reinforcement were also studied. Three different temperature conditions and two different deck drying shrinkage profile conditions were analyzed. About 18,000 combinations of system and conditions were analyzed. The analytical study determined the material properties and geometries most likely to cause transverse deck cracking. These are deck restraint, the concrete modulus of elasticity and creep, and shrinkage and thermal strains. Because decks are restrained primarily by their supporting girders, and span length limits girder stiffness, often little can be done to reduce restraint. However, concrete properties have a large effect on stresses, and concrete properties can be easily changed. Construction techniques can also be easily improved to reduce early thermal strains and shrinkage. A test method to predict cracking tendency of concrete mixes was developed. This project identified and ranked the factors or combinations of factors that contribute to transverse cracking of newly constructed bridge decks.
243 citations
Patent•
1 Aug 1996TL;DR: In this article, a table (100) including a frame (16) and an articulated deck (6) having a head section (8), a seat section (10), and a foot section (12) is coupled to the frame for movement between a generally horizontal position and a tilted position about a first effective axis above a patient support surface (22) of a mattress of the deck.
Abstract: A table (100) including a frame (16) and an articulated deck (6) having a head section (8), a seat section (10), and a foot section (12). At least one of the sections (8, 10, 12) is coupled to the frame (16) for movement between a generally horizontal position and a tilted position about a first effective axis above a patient support surface (22) of a mattress of the deck (6). Pivoting and translation of the deck (6) extends and contracts the deck sections (8, 10, 12) relative to each other to generally match the expansion and contraction of the skin of a patient on the patient support surface (22) as the deck sections (8, 10, 12) move between their horizontal and tilted positions.
154 citations
Patent•
27 Sep 1996
TL;DR: In this paper, a curved deck treadmill is described as comprising a support frame comprising a first side and a second opposing side having a deck supportably disposed there between, and an endless belt may be rotatably mounted in relation to the roller assembly and operatively disposed in relation with the deck, whereby providing a structurally supported arcuate shaped, moveable surface on which a user may exercise.
Abstract: A curved deck treadmill is disclosed in one presently preferred embodiment of the present invention as comprising a support frame comprising a first side and a second opposing side having a deck supportably disposed therebetween. In preferred design, the deck comprises a first end, a second end, and an intermediate portion disposed between the first and second ends. The intermediate portion of the deck is preferably formed having a substantially arcuate configuration such that a significant portion of the intermediate portion may be operably disposed dimensionally lower in longitudinal relation to the first and second ends of the deck. Further, a roller assembly is provided preferably comprising a first and second roller. The first roller may be rotatably disposed contiguous the first end of the deck between the first side and the second side of the support frame. Correspondingly similar in construction and design, a second roller is preferably disposed contiguous the second end of the deck between the first and second sides of the support frame. In operation, an endless belt may be rotatably mounted in relation to the roller assembly and operatively disposed in relation to the deck, whereby providing a structurally supported arcuate shaped, moveable surface on which a user may exercise.
64 citations
Patent•
6 Sep 1996
TL;DR: In this article, a vibrating screen apparatus is provided with a plurality of removable and interchangeable modular screen panels, including wire screen panels having pre-crimped screen wires pretensioned in both directions.
Abstract: A screen deck for a vibrating screen apparatus is provided with a plurality of removable and interchangeable modular screen panels, including wire screen panels having pre-crimped screen wires pretensioned in both directions. The invention contemplates the use of interchangeable wire screen panels alone or in combination with polyurethane or rubber screen panels, and provides a screen deck that can be serviced relatively easily at relatively low cost.
60 citations
Patent•
1 Aug 1996
TL;DR: In this paper, a bed for a person is provided, the bed having a head (52), a foot (54), and sides (56, 58) having a planar, upwardly-facing patient surface.
Abstract: A bed (50) for a person is provided, the bed (50) having a head (52), a foot (54), and sides (56, 58). The bed (50) includes a frame (62, 300) and a deck (400) carried by the frame (62, 300). The deck (400) includes an upper deck portion (414) and a central, longitudinal recess (456) in the upper deck portion (414), the recess (456) being defined by a lower deck portion (430) and walls (438) connecting the upper and lower deck portions (414, 430). In addition, the bed (50) includes a mattress (550) having a planar, upwardly-facing patient surface (552), side portions (580) resting on the side deck portions, and a central projection (576) extending downwardly into the recess (456). The bed (50) also includes a first longitudinal deck section (404) coupled to the deck (400) to pivot about a pivot axis above the lower deck portion (430) between a generally horizontal position and a tilted position.
54 citations
Patent•
14 Aug 1996
TL;DR: In this paper, the legs of a twin-sheet thermoformed pallet are made to contribute to the overall stiffness of the pallet deck by utilizing vertical webs which tie into the legs through a plurality of special purpose depressions or knee joints and which work with narrow channels in the bottom deck which extend parallel to the predominate lines of stress expected to be experienced by a pallet.
Abstract: The high stiffness of the legs of a twin-sheet thermoformed pallet are effectively made to contribute to the overall stiffness of the pallet deck by utilizing vertical webs which tie into the legs through a plurality of special purpose depressions or knee joints and which work with narrow channels in the bottom deck which extend parallel to the predominate lines of stress expected tobe experienced by the pallet.
54 citations
Patent•
31 Oct 1996
TL;DR: In this article, a roll-out deck apparatus is fitted to a pick-up truck, for loading/unloading a snowmobile etc. The deck may be tilted about a hinge pivot at the rear edge of the truck, whereby the deck forms a ramp, up and down which the snowmobile may be manipulated.
Abstract: A roll-out deck apparatus is fitted to a pick-up truck, for loading/unloading a snowmobile etc. The deck may be tilted about a hinge pivot at the rear edge of the truck, whereby the deck forms a ramp, up and down which the snowmobile may be manipulated. The apparatus includes an electric winch, located at the front end of the deck, for raising and lowering the deck, about the hinge pivot. A sub-frame of the apparatus is directly hinged to the rear edge of the truck bed; the sub-frame can undergo pivoting or tilting movement about the hinge pivot. A deck-frame is telescopable with respect to the sub-frame, but is otherwise locked to the sub-frame, whereby when the sub-frame tilts the deck-frame tilts in unison.
53 citations
Patent•
10 Jul 1996
TL;DR: An asphalt-based roofing shingle is disclosed in this article that includes a substrate including at least one composite having a scrim bonded to a mat, coated with filled asphalt and granules.
Abstract: An asphalt-based roofing shingle is disclosed that includes a substrate including at least one composite having a scrim bonded to a mat, coated with filled asphalt and granules. The scrim has woven or non-woven fiberglass or polyester strands arranged in a crossing pattern, such as a 10×10 thread crossing pattern per square inch, and the mat has a layer of organic, fiberglass or polyester materials, the scrim and mat being joined together with a rubberized binder or other suitable bonding material. The shingle may be used, for example, in a residential roofing application, in which a portion of a roof deck is covered by providing the shingle including the substrate and a fastening device such as a nail having a head; positioning the shingle on the roof deck portion; and driving the nail through the shingle and into the roof deck to secure the shingle to the roof deck.
49 citations
Journal Article•
TL;DR: The first known fiber reinforced concrete (FRC) bridge deck slab without any internal steel reinforcement was constructed on the Trans Canada Highway 104 and opened to traffic on December 5, 1995.
Abstract: The first known fiber reinforced concrete (FRC) bridge deck slab without any internal steel reinforcement was constructed on the Trans Canada Highway 104 and opened to traffic on December 5, 1995. A companion bridge deck with conventional steel reinforcement design was also constructed. This project represents a new approach to bridge deck design. A structural system using polypropylene fiber reinforced concrete enables the bridge deck to be constructed totally devoid of all internal steel reinforcement. This article describes the issues of design, construction, experimental verification, monitoring, and economics specific to that project.
45 citations
Patent•
9 Aug 1996
TL;DR: In this article, an offshore apparatus and method for oil operations at a deep water well site where a lower hull includes a pontoon portion providing a large water plane area and also includes an upwardly facing body opening, an upper hull is fabricated within said body opening in fully telescoped relation therewith, said upper hull and lower hull being vertically relatively movable, and a deck carried by the upper hull.
Abstract: An offshore apparatus and method for oil operations at a deep water well site wherein a lower hull includes a pontoon portion providing a large water plane area and also includes an upwardly facing body opening, an upper hull is fabricated within said body opening in fully telescoped relation therewith, said upper hull and lower hull being vertically relatively movable, and a deck carried by the upper hull. The pontoon portion has suffient displacement to support the apparatus in towing draft mode. The lower hull and upper hull include floodable compartments for selective ballasting and deballasting to raise and lower the hulls relative to each other in order to submerge the apparatus under stable conditions and to change the draft from towing mode to operating mode in which the hulls are in extended nontelescopic relation at a selected draft. Support lines interconnecting the lower hull and deck are selectively tensioned to aid in the transition from towing draft to operating draft. Interengagable stop shoulders are provided between the upper and lower hulls and at operating draft may be secured to assist in maintaining the extended nontelescopic relation thereof. Guides for relative vertical motion of the upper and lower hulls are provided at the outer surface of the upper hull and the stop shoulder of the lower hull. The support lines may later serve as anchor lines.
44 citations
Patent•
17 Jan 1996
TL;DR: In this paper, a front mounted mower deck includes a mounting and support assembly for operably joining the deck to a motorized vehicle, which includes a pair of pusher bars swivelly attached at one end to the deck and at the opposite end to a vehicle.
Abstract: A front mounted mower deck includes a mounting and support assembly for operably joining the deck to a motorized vehicle. The mounting and support assembly includes a pair of pusher bars swivelly attached at one end to the deck and at the opposite end to the vehicle. A hanger is pivotally mounted on each pusher bar and includes a slot which receives a slot follower mounted on the deck to allow articulation from side to side by movement of the slot followers in the slots. Each hanger is biased to maintain an associated slot follower in the slot therefor. However, the hanger can be manually manipulated to overcome the biasing force so that the slot followers are released from the slots, thereby allowing the deck to be rotated about the connection with the pusher bars to provide for cleaning, maintenance, etc. A height adjustment mechanism cooperates with the mounting and support assembly to allow simultaneous adjustment of the mower cutting height on both sides of the front and back of the mower from a single location.
Patent•
[...]
13 Jun 1996
TL;DR: An automotive remote carrier deck for transporting equipment or other material and attachable to a standard trailer hitch tongue is described in this paper, where a trailer hitch assembly is attached to a remote carrier.
Abstract: An automotive remote carrier deck for transporting equipment or other material and attachable to a standard trailer hitch tongue. The remote carrier deck has a trailer hitch assembly which attaches directly to a trailer hitch tongue and which elevates the entire remote carrier deck to a height which is substantially above the trailer hitch tongue. The remote carrier deck hinges about a first securing pin allowing the entire deck to be raise in a vertical stored position or a usable horizontal position. A second securing pin allows the deck to be locked in the vertical and horizontal position. There is also an adjustable stop which determines the extent of downward rotation and horizontal level of the deck. The stop allows the horizontal angle of the deck to be adjusted when heavy items are placed thereon.
Patent•
13 Dec 1996
TL;DR: In this article, a two-sheet thermoformed plastic part has parallel bands of plastic forming fillets which allow stiff pallet deck segments to be folded after forming and locked together into a support structure with a planar upper deck spaced above a pallet lower deck.
Abstract: A single twin-sheet thermoformed plastic part has parallel bands of plastic forming fillets which allow stiff pallet deck segments to be folded after forming and locked together into a support structure with a planar upper deck spaced above a pallet lower deck with openings for lift truck tines. The lower deck has two segments joined by side stringers to the upper deck. Two central stringer segments extend along folding fillets from lower deck half segments to lock into place with the upper deck. The pallet is locked in its assembled configuration by a rod which passes through knuckles formed beneath the central stringers. The monocoque construction of the pallet provides for advantageous stiffness and load support capacity, while at the same time being economical to produce. For increased load-carrying capability, the pallet may be formed with a reinforcing substrate reinforced with a tubular steel insert. The pallet has interleaved step structure adjacent each plastic fillet which transfers vertical loads and also resists lateral deformation of the pallet.
Patent•
6 Sep 1996
TL;DR: In this paper, a variable-dimensional truss assembly is supported by a barge and forms a load transfer interface between the Barge and the deck package, where slings are suspended from a compression frame portion at the boom end portions of the truss.
Abstract: A method and apparatus for the installation or removal of large multi-ton prefabricated deck packages includes the use of usually two barges defining a base that can support a large multi-ton load. A variable dimensional truss assembly is supported by the barge and forms a load transfer interface between the barge and deck package. Slings are suspended from a compression frame portion at the boom end portions of the truss assembly. The slings form attachments between the compression frame and the deck package at the upper elevational positions on the deck package. Tensile connections form attachments between the deck package and barge at a lower elevational position. The variable dimension truss includes at least one member of variable length, in the preferred embodiment being a winch powered cable that can be extended and retracted by winding and unwinding the winch.
Journal Article•
TL;DR: In this article, the internal arching action of the deck slabs of girder bridges can be harnessed by connecting the slab to the girders by shear connectors and through transverse confinement provided by external bars or straps.
Abstract: Nearly all the research and development work on the steel-free FRC deck slabs has been reported. It has been shown that the internal arching action of the deck slabs of girder bridges can be harnessed by connecting the slab to the girders by shear connectors and through transverse confinement provided by external bars or straps. The extensive static and dynamic tests on both small- and full-scale laboratory models have not only given confidence in the very high strength of the proposed deck slab but have also resolved the issue of various construction details.
Patent•
2 Sep 1996
TL;DR: In this paper, a railcar (20) is formed from a floor (32), upstanding side walls (34, 36) which are connected to the floor and a top (38) to form an enclosure.
Abstract: A railcar (20) which forms part of an articulated train includes a novel deck system (24, 24b, 24c, 24d) and a novel, low-level, low-profile, no slack coupler (22). The railcar (20) is formed from a floor (32), upstanding side walls (34, 36) which are connected to the floor (32) and a top (38) to form an enclosure. The deck system (24, 24b, 24c, 24d) includes an upper deck (54) and a lower deck (56) which are connected together and are counterbalanced against each other. The decks (54, 56) are movable to a first position wherein the decks (54, 56) abut against each other so that cargo, such as automobiles, general freight and the like, can be loaded onto the upper deck (54) and onto the floor (32). The decks (54, 56) are movable to a second position wherein the decks (54, 56) are spaced apart from each other so that cargo can be loaded onto the upper deck (54), the lower deck (56) and the floor (32). In two of the embodiments of the novel deck system (24, 24d), the decks (54, 56) can be moved relative to the floor (32) when the decks (54, 56) are in the first and second positions. The novel low-profile coupler (22) attaches the railcars (20) together and takes the form of a socket (164) on a rear end (30) of the railcar (20) and a tongue (162) on the front end (28) of the railcar (20). A plurality of windows (42, 60) are provided in the top wall (38) and in the decks (54, 56) to allow light to enter into the interior of the railcar (20).
Patent•
30 Apr 1996
TL;DR: In this article, an installation aid for facilitating the installation of a faucet body of a two-handle faucets to a sink deck is described, which has a frusto-conical configuration with a skirt formed of resilient circumferentially spaced apart legs extending radially outwardly downwardly from a top under a retention cap.
Abstract: An installation aid for facilitating the installation of a faucet body of a two handle faucet to a sink deck. The aid has a frusto-conical configuration with a skirt formed of resilient circumferentially spaced apart legs extending radially outwardly downwardly from a top under a retention cap with fingers that removably attach the installation aid to an enlarged head of a spout tube extending upwardly from a central part of a faucet body having spaced valve tubes which along with the spout tube having the temporarily attached installation aid are inserted upwardly through sink deck holes from below the sink deck. The legs of the installation aid squeeze together as it is forced through the sink deck hole and spring back to a frusto-conical configuration for temporarily mounting the faucet body to the sink deck while an installer assembles attachment hardware to the valve tubes from above the sink deck without the need for the installer to hold the faucet body with one hand below the sink deck while installing attachment hardware with his other hand above the sink deck.
TL;DR: In this article, a computer aided design system for prestressed concrete highway bridges is presented, starting from few geometrical data, providing the complete geometry, prestressing steel, reinforcing steel, amount of materials and cost of all the bridge elements: deck, bearings, piers, abutments and foundations.
Patent•
24 Jun 1996
TL;DR: In this paper, a system and method for the installation of prefabricated composite structural members is disclosed, which utilizes deck panels which have a plurality of structural member pairs attached to the underside such that a series of channels are formed.
Abstract: A system and method for the installation of prefabricated composite structural members is disclosed. The system utilizes deck panels which have a plurality of structural member pairs attached to the underside such that a series of channels are formed. Bored through each deck panel is a plurality of access holes that project through the panel and into one of said channels. Thus, installers can access underlying bridge girders from the surface of the deck panels thereby allowing for top-side installation. The system also provides a top-side vertically adjusting device for raising or lowering the deck panels to allow for the top-side installation of shimming devices.
TL;DR: Besides the concrete deck slab, continuous steel composite bridges with double composite action have a concrete bottom chord at the haunches over the main piers as discussed by the authors, which increases the stability of the bridge.
Abstract: Besides the concrete deck slab, continuous steel composite bridges with double composite action have a concrete bottom chord at the haunches over the main piers. This concrete bottom chord increase...
Patent•
15 Aug 1996
TL;DR: In this paper, a modular wheeled suspension system which may be actuated to move a cargo holding deck or vehicle frame between a ground engaging load position to facilitate the loading of cargo and a transport position out of contact with the ground is provided.
Abstract: A modular wheeled suspension system which may be actuated to move a cargo holding deck or vehicle frame between a ground engaging load position to facilitate the loading of cargo and a transport position out of contact with the ground is provided. An adjustable telescoping frame for the cargo holding deck is further provided to accommodate loads of different sizes. The suspension system employs an arrangement of air bags supported between pivoted bracket elements located adjacent to the vehicle wheels and an air supply system with an automatic locking arrangement to allow the deck or frame to be lowered to a ground engaging load position and maintained in the load position until loading has been completed and the frame or deck raised to the transport position.
Patent•
15 Nov 1996
TL;DR: The power head assembly for a cordless electric lawnmower has a removable upper housing that includes two spaced batteries, and a lower housing that is mounted to the deck of the grass cutting device.
Abstract: The power head assembly for a cordless electric lawnmower has a removable upper housing that includes two spaced batteries, and a lower housing that is mounted to the deck of the grass cutting device. The upper housing has a handle, and at least one quick disconnect terminal that engages a mating quick disconnect terminal affixed to the lower housing. The lower housing includes an electric motor that is disposed between the two batteries when the upper housing is in place. A portion of the electric motor is located below the deck to further reduce the overall height of the device. The lower housing is mounted to the deck by several bolts which are placed in the same mounting pattern used to mount gasoline engines to a deck, so that the same decks may be used for both the cordless electric and gasoline-powered lawnmowers.
Patent•
31 Dec 1996
TL;DR: In this paper, a heavy equipment trailer has a main deck with a rear gooseneck which is connected to a turntable mounted on a lifting tower carried by a dolly positioned to the rear of the deck.
Abstract: Heavy equipment trailer having a main deck with a rear gooseneck which is connected to a turntable mounted on a lifting tower carried by a dolly positioned to the rear of the deck. The lifting tower is mounted in a box which is suspended between the side rails of the dolly frame in a manner permitting the box to be shifted longitudinally of the rails to adjust weight distribution between wheel sets at the front and rear of the dolly.
Patent•
2 Apr 1996
TL;DR: In this paper, an anchor is used for safety cables which can be attached to the framing of the floor as it is built, and removed and re-used after the floor is completed.
Abstract: The invention presents an easy to use anchor for safety cables which can be attached to the framing of the floor as it is built, and removed and re-used after the floor is completed. The anchor has lower and upper plates separated by a spacer the thickness of an I-beam cross-plate. The anchor clamps between two adjacent beams, with the upper and lower plates sliding around the top plate of the I-beam and being fastened firmly with setscrews in the lower plate. Eye bolts screw into the anchor plate to provide a tie-off spot for cables. The thickness of the anchor plate over the deck support beams is such that the top of the anchor plate is flush with the surface of the plywood decking over which the concrete will be poured. In use, the anchor is slid into the desired location between the top plates of two deck support I-beams and screwed tightly into place using the setscrews in the lower plate of the anchor. When the plywood deck is laid, it is notched around the anchor plate, and the surface of the upper plate of the anchor forms a flush floor with the top of the plywood deck. The workers can tie off their safety cables to the eyebolts screwed into the anchor. When the time comes to pour the floor, the eyebolts are removed and the holes covered with duct tape. The floor is poured, and when it cures and the beams and plywood are removed, the anchors can be easily detached from the I-beams and re-used.
Patent•
9 Feb 1996
TL;DR: The power head assembly for a cordless electric lawnmower has a removable upper housing that includes two spaced batteries, and a lower housing that is mounted to the deck of the grass cutting device.
Abstract: The power head assembly for a cordless electric lawnmower has a removable upper housing that includes two spaced batteries, and a lower housing that is mounted to the deck of the grass cutting device. The upper housing has a handle, and at least one quick disconnect terminal that engages a mating quick disconnect terminal affixed to the lower housing. The lower housing includes an electric motor that is disposed between the two batteries when the upper housing is in place. A portion of the electric motor is located below the deck to further reduce the overall height of the device. The lower housing is mounted to the deck by several bolts which are placed in the same mounting pattern used to mount gasoline engines to a deck, so that the same decks may be used for both the cordless electric and gasoline-powered lawnmowers.
Patent•
18 Nov 1996
TL;DR: In this paper, an elevator system provides service between a ground level and each of three upper levels through a single elevator shuttle hoistway system Three elevator cabs 34-36, B, D, F are moved in a triple deck elevator car frame 35, or a four deck car frame 75 in a low-hoistway.
Abstract: An elevator system provides service between a ground level and each of three upper levels through a single elevator shuttle hoistway system Three elevator cabs 34-36, B, D, F are moved in a triple deck elevator car frame 35, or a four deck elevator car frame 75 in a low hoistway 26, 76; two cabs are moved in a double deck elevator car frame 30 or four deck car frame 76 in a mid hoistway 27, 52; and one cab is moved in a single deck car frame 31 or triple deck car frame 77 in a high hoistway 28, 53 Other embodiments have other car frame arrangements
TL;DR: In this article, the effect of unevenness in the bridge deck on the dynamic response of a single span bridge due to moving loads was investigated and compared between simple-supported and hinged-hinged bridges.
TL;DR: In this paper, a structural impedance algorithm is developed for analyzing the dynamic response of cable-stayed bridges subjected to traversing vehicles, where the bridge deck is modelled as an elastic plate, and the cables are idealised as springs for simplicity.
Patent•
13 May 1996
TL;DR: In this article, the authors describe a tilt bed for a truck or a trailer, which consists of a frame and a deck mounted on and supported by the frame, the deck having a front portion and a rear portion, and tracks mounted at an angle, the tracks for guiding the deck rollers.
Abstract: A tilt bed for a truck or a trailer, the tilt bed being able of carrying loads and providing its own ramp. The tilt bed comprises a frame, and a deck mounted on and supported by the frame, the deck having a front portion and a rear portion. The deck has rollers connected to the front portion, and the frame has tracks mounted at an angle, the tracks for guiding the deck rollers. The trailer bed further comprises a hydraulic cylinder that has a first end connected to the frame and a second end connected to the trailer bed. The hydraulic cylinder has a piston and a cylinder. As the piston moves from an extended state into a retracted state, it causes the trailer bed to move in a rearward position. At the same time, the tracks force the deck rollers in an upward motion and cause the trailer bed to tilt. Finally, the hydraulic cylinder remains parallel to the trailer deck at all times. This orientation is accomplished because the trailer deck and the hydraulic cylinder tilt around a common axis.
Patent•
6 Dec 1996
TL;DR: A pallet (10) for transporting a load (19) includes a deck (11) provided with two skids (12) and depalletization is effected by inclining the deck caused by pivoting the skids so as to space them apart from lateral edges of the deck.
Abstract: A pallet (10) for transporting a load (19) includes a deck (11) provided with two skids (12). Depalletization is effected by inclining the deck caused by pivoting the skids so as to space them apart from lateral edges of the deck.