Browse Prior Art Database

Hydraulic Punch Mechanism

IP.com Disclosure Number: IPCOM000098372D
Original Publication Date: 1960-Sep-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 66K

Publishing Venue

IBM

Related People

Darwin, DP: AUTHOR [+2]

Abstract

Record 10 is perforated by punch 11 which is actuated by fluid operated unit 12 and restored by fluid operated unit 13. The armature 14 is essentially an extension of punch 11 and is actuated by unit 12 only if electromagnet 15 is de-energized.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Hydraulic Punch Mechanism

Record 10 is perforated by punch 11 which is actuated by fluid operated unit 12 and restored by fluid operated unit 13. The armature 14 is essentially an extension of punch 11 and is actuated by unit 12 only if electromagnet 15 is de- energized.

The punch is shown in its restored position. Fluid pulses are alternately applied to units 12 and 13 through inlets 16 and 17. With the piston 18 restored, fluid pressure cannot pass through the bore 19 to act on the bottom side of the piston. Any fluid leakage passes through bores 20, 21, 22 and 23 and does not actuate the piston 18. When the magnet 15 is de-energized, the starting spring 24 raises the piston 18 far enough to permit the fluid pressure to actuate the piston and consequently, through stud 25, the punch 11.

The alternate fluid pulse to unit 13 operates on the top of piston 26 to restore the punch.

1

Page 2 of 2

2

[This page contains 3 pictures or other non-text objects]