TL;DR: In this paper, the major component is a leaf made up of continuous strands of fibers distributed in a matrix of polymerized plastic resin, and the spring has a theoretical constant cross-sectional area and uniform width throughout its length and at the same time is thickest at its midportion and tapers to the opposite ends.
Abstract: A leaf spring is provided in which the major component is a leaf made up of continuous strands of fibers distributed in a matrix of polymerized plastic resin. The spring has a theoretical constant cross-sectional area and uniform width throughout its length and at the same time is thickest at its midportion and tapers to the opposite ends. The spring results in an arrangement having a cavity intermediate opposite ends and opposite sides which is capable of receiving locating pins or bolts of the type used with conventional metal leaf springs without the requirement for drilling of holes or otherwise weakening the structure. One embodiment of the invention incorporates a metallic leaf with the non-metallic components.
TL;DR: In this paper, a process for preparing a reflexible pigment consisting of a metal deposition layer and a resinous coating layer on at least one side thereof and having a length and width of 0.1 to 500 μ, a thickness of thickness 0.4 to 4 μ and a true specific gravity of 1 to 2 is described.
Abstract: A process for preparing a reflexible pigment consisting of a metal deposition layer and resinous coating layer on at least one side thereof and having a length and width of 0.1 to 500 μ, a thickness of 0.1 to 4 μ and a true specific gravity of 1 to 2, which is characterized by providing on a base film a metal leaf consisting of a metal deposition layer and a resinous coating layer on at least one side thereof, peeling the metal leaf out of the base film by elongating the base film and crushing up the metal leaf. According to the process, a reflexible pigment in a dry state can be prepared with a remarkable simplicity and a high efficiency. The coating composition including the pigment prepared by the process has improved properties such as beautifulness, reflection property, application property, weather-proofing and abrasion resistance, and is useful for printing ink, writing ink or paint.
TL;DR: In this paper, a method of transferring metal leaf, such as gold leaf, to a substrate is disclosed, which includes the steps of creating a transfer graphic design, and a pressure sensitive adhesive design is formed on a transfer sheet having paper backing and a release layer.
Abstract: A method of transferring metal leaf, such as gold leaf, to a substrate is disclosed. The method includes the steps of creating a transfer graphic design. After the transfer graphic design is created, a pressure sensitive adhesive design in the shape of the transfer graphic design is formed on a transfer sheet having paper backing and a release layer. The transfer sheet may be a dry transfer sheet or a water release decal type transfer sheet. The transfer sheet containing the pressure sensitive adhesive design is then placed on a substrate to which the pressure sensitive adhesive design is transferred by removing the transfer sheet so that the pressure sensitive adhesive design adheres to the substrate. Metal leaf is then applied to the pressure sensitive adhesive design.
TL;DR: In this article, a method for making nanoporous metal membranes from metal leaf is presented. But this method requires that at least a portion of the leaf is freely supported by a de-alloying medium for a time effective to dealloy the metal leaf, which may be thermally and electrically influenced.
Abstract: The present invention is directed to nanoporous metal membranes and methods of making nanoporous metal membranes from metal leaf. At least a portion of the metal leaf is freely supported by a de-alloying medium for a time effective to de-alloy the metal leaf. After the porous membrane is formed, the membrane may be re-adhered to a substrate and removed from the de-alloying medium. The de-alloying process may be thermally and electrically influenced.
TL;DR: In this article, a rotary die stamper is used to accelerate a continuous sheet of metal leaf to a constant rate by contact between the metal leaf sheet and a raised die rotating at the velocity of the substrate web.
Abstract: A continuous sheet 27 of metal leaf advanced at a constant rate is moved at variable velocity through a rotary die stamper 6, 7 such that between stamps the metal leaf moves at a velocity which is slower than the velocity of a substrate web 28; but just prior to stamping the metal leaf is accelerated by contact between the metal leaf sheet and a raised die 5 rotating at the velocity of the substrate web so that when the stamp occurs the metal leaf sheet is travelling at a velocity substantially equal to the velocity of the substrate web. Varying the velocity of the metal leaf sheet has the effect of minimising the distance the metal leaf sheet travels between stamps which conserves consumption of the metal leaf sheet. Separate means for accelerating the leaf sheet prior to stamping and decelerating the leaf sheet after stamping may also be provided.