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US 4,706,565 AGranted
Multi-color engraving system
OwnerJohn Martin, Ronald W. White +1inventors
InventorsJohn Martin, Ronald W. White, Johnnie L. White, Jr.
Life of this patent
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Abstract
A multicolor engraving system includes a plurality of identical engraving presses mounted in line in a common frame. Each press is hydraulically operated and includes a high speed hydraulic motor for reciprocating its shuttle assembly. A work transfer mechanism moves each workpiece sequentially to the presses and accurately aligns it with the die in each press.
Claims8
In an engraving press the combination comprising:
- a frame;
- a fixed platen supported in said frame;
- upper and lower movable platens on opposite sides of and parallel to said fixed platen;
- a plurality of tie rods extending through bearings in said fixed platen and secured at opposite ends to said upper and lower movable platens;
- a main hydraulic cylinder rigidly supported from the underside of said fixed platen;
- a piston within said cylinder;
- a piston rod rigidly connecting said piston and said lower movable platen;
- whereby the assembly of said movable platens and tie rods may be reciprocated in a vertical plane with respect to said fixed platen;
- a die plate assembly mounted for horizontal sliding movement over the upper surface of said fixed platen;
- a striker assembly carried by the under surface of said upper movable platen for cooperation with a die carried by said die plate to engrave work pieces positioned therebetween;
- and
- hydraulic means operating in timed relation with said main hydraulic cylinder for reciprocating said die plate in a horizontal plane over said upper platen between engraving, inking and wiping positions.
9 more elements
Dependencies are inferred from the claim text.