An actuator or adjusting drive having an electric drive motor connected to an actuating shaft and a position transmitter, comprising a reduction gear unit intermediately connected to the drive motor and the actuating shaft, and a gear drive intermediately connected to the drive motor and the position transmitter, at least one of the reduction gear unit and the gear drive having two bearing shafts extending parallel to one another, and reduction gearwheels formed of a pinion and a spur gear connected thereto so as to be fixed against relative rotation therewith, the reduction gearwheels being exchangeably mounted on the two bearing shafts for selectively varying at least one of quantity and diameter of the reduction gearwheels so that the pinions and the spur gears of the reduction gearwheels are disposed in meshing engagement with one another on different ones of the bearing shafts.

Actuator or adjusting drive

A gear train is assembled by vibratory feeding each of its gears into a nest in overlapping meshed aligned spaced relation. A fastening nut is vibratory fed in alignment with the journal for the gear which is distal the bracket to which the gear train is to be secured. The bracket includes a plurality of journals each mating with the journal bearing of a corresponding gear located in the nest. A robotic arm carries the bracket and inserts the journals into the gears in an axial direction, passing the journal for the distal gear through that gear bearing and into the nut for capturing the overlapped nested gears between the nut and the bracket.

Apparatus and method for assembling gears

A method and apparatus for monitoring an electrically actuated tool. The current flowing in the tool circuit is sampled and converted to an analog voltage signal that is proportional to the maximum stress level output of the tool. This converted signal may be displayed and recorded as desired. The converted analog voltage signal is compared with signals representing the current flow that will produce the highest and lowest acceptable stress levels delivered by the tool and a logic control signal is produced if the analog voltage signal is outside the acceptable range. The logic control signal is used to prevent recycling of the tool so that subsequent tool operation is not possible until corrective procedures are instituted. Further, the logic control signal may be used to activate audio and visual indicators. Moreover, the logic control signal can be used to introduce a load into the total circuit to modify the current delivered to the tool and therefore change its output.

Method and apparatus for monitoring an electrically actuated tool

Method of assembling a transmission

A drawing apparatus for drawing metal and articles has at last one drawing carriage and a linear motor complex which determines the pattern of movement of that carriage and hence of the drawing operation.

Method of drawing metal workpieces and drawing unit for a drawing machine

Gear train mechanism

A low cost time meter assembly adapted for mass production. An arrangement wherein the counter, motor and reduction gear shafts are all mounted parallel on a unitary molded plastic frame, permits use of simple spur gearing. A motor support plate is automatically locked in a properly aligned position during assembly.

Time meter assembly

Paper tension regulator for strip chart recorder

Draw bench loading measurements

Astronomic dial for time switch

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