Browse Prior Art Database

Cylinder Vent Control Arrangement

IP.com Disclosure Number: IPCOM000097208D
Original Publication Date: 1962-Jul-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 62K

Publishing Venue

IBM

Abstract

This arrangement vents a pressure chamber 1 to cause a hopper platform member 2 to lower automatically whenever the latter is swung through a prescribed arc.

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Cylinder Vent Control Arrangement

This arrangement vents a pressure chamber 1 to cause a hopper platform member 2 to lower automatically whenever the latter is swung through a prescribed arc.

Developed for IBM by Industrial Sales Engineering Department of A. Schrader's Son, Division of Scovill Manufacturing Company, Inc.

When pressure is supplied via pipe 3 to chamber 1, piston 4 normally is displaced relative to casing 5 to elevate sleeve 6, non-pressure head 7 and cover plate 8. Plate 8 is operably secured by screws 9 to platform support 10 having a bore for receiving the upper end of sleeve 6. Plate 8 is coaxially connected to the non-pressure head 7 by screw 11 which permits rotation of the plate and, hence, arcuate movement of platform 2.

Pressure chamber 1 connects via hollow piston rod 12 to a chamber 13 beneath plate 8. In chamber 13 is a 0-ring seal 14 which is springbiased into sealing contact with the underside of plate 8. Plate 8 and, hence, platform 2 are swingable arcuately between two limit positions defined by positioning of depending pin 15 within an arcuate slot 16 in the non-pressure head 7.

When plate 8 is rotated to one of these limit positions in which platform 2 is shown dotted at the right, a vent port 17 in plate 8 is out of registry with seal 14. Platform 2 is then in a feeding position. Supply of pressure fluid to chamber 1 is controlled as necessary to maintain the top of the document stack at a substantially constant height. Seal 14 i...