Browse Prior Art Database

Fluid Pressure Actuated Imprinter

IP.com Disclosure Number: IPCOM000094067D
Original Publication Date: 1966-May-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Klock, RH: AUTHOR

Abstract

Credit plates and formsets of varying thickness can be readily accommodated in an imprinter actuated by fluid pressure.

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Fluid Pressure Actuated Imprinter

Credit plates and formsets of varying thickness can be readily accommodated in an imprinter actuated by fluid pressure.

The imprinter of drawing A has base 1 with recess 2 for receiving credit plate
3. Formset 4 lies on base 1 and plate 3 beneath platen 5 which is secured to slave piston 6. The latter is vertically movable in slave cylinder 7 in response to fluid pressure applied through opening 8 from master cylinder 9. Operating pressure is created in cylinder 9 by the force applied to master piston 10 from pivoted handle 11. Cylinder 7 is provided with adjustable pressure relief valve
12. This has duct 13 for directing bypass fluid above the piston in cylinder 9. Piston 10 has one-way valve 14 for permitting fluid to return to the system beneath the piston. Piston 6 is returned to the upper or rest position by springs 15 to release plate 3 and formset 4.

In drawing B the top of base 1 and bottom of platen 5 are angularly displaced with respect to bottom of piston 6. Thus there is provided a slight horizontal force component during printing to produce improved printing from the formset carbon paper. The base can be constructed with a horizontally movable plate holder to facilitate insertion and removal of plate 3.

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