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WEB HANDLING DEVICE

IP.com Disclosure Number: IPCOM000022932D
Original Publication Date: 1976-Apr-30
Included in the Prior Art Database: 2004-Mar-27
Document File: 2 page(s) / 411K

Publishing Venue

Xerox Disclosure Journal

Abstract

A variable wrap angle capstan drive having two pinch members mounted in a self~-compensating manner, A capstan roll 3 is mounted on a frame 1 in a yoke 5. Two pinch rollers 25, 23 are mounted on axles 32 at the ends of pressure arms 9, 9a, which are interconnected and extend generally tangentially

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XEROX DISCLOSURE JOURNAL

WEB HANDLING DEVICE
A. T. Wright

SIDE V~EW

Proposed Classification

U.S. Cl. 242/65
Int. Cl, B65h 17/08

A variable wrap angle capstan drive having two pinch members
mounted in a self~-compensating manner, A capstan roll 3 is
mounted on a frame 1 in a yoke 5. Two pinch rollers 25, 23

are mounted on axles 32 at the ends of pressure arms 9, 9a,
which are interconnected and extend generally tangentially

of the roll 3 from a common pivot axis 11, The arms are
supported from a yoke 7, mounted over yoke 5, on a shaft 33
for pivotal movement relative to one another and to the yoke

Yoke 7 is supported from frame member 12 in keyway 35 for
sliding movement radially of the roll 3, being adjustable

FRONT VIEW

Volume 1 Number 4 April 1976 45

[This page contains 1 picture or other non-text object]

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tWEB HANDLING DEVICE (Contd)

by screw 13 threaded through a bracket at the top of frame
member 12, Pressure arms 9 and 9a are interconnected by
means of stud 15 pivotally secured to arm 9 and passing
through an elongated hole in arm 9a, The pinch rollers 23,
25 are urged inwardly against the roll 3 by compression
spring 17. The roll 3~ which is mounted on axle 27, is
driven through chain and sprocket drive 29, 31,

The wrap of a web 21 around capstan roll 3 may be varied by
adjusting the height of pivot axis 33 by means of adjust~
ment screw 13. A lock nut 19 may be used to spread the
rollers 23, 25 horizontally during adjustment and during
loading of the web 21. It...