Apparatus for positioning a web
AssigneeTeletype Corporation
InventorRobert R. Wanat
Life of this patent
Estimating the term…
Abstract
An apparatus is described for positioning a paper web with respect to the print mechanism of a high speed printer. The apparatus includes a rod supported by the main frame of the printer and a slide tube is coaxially positionable on the rod. A pair of tractors for driving the web across the print station are carried upon the slide tube. One of the tractors is fixed to one end of the slide tube and the second tractor is positionally adjustable upon the slide tube. A clamp is provided for securing the second tractor to the slide tube after the spacing between the tractors is adjusted in relation to the width of the paper web. The slide tube is positioned to locate the type margin on the web at the desired location and a second clamp secures the slide tube to the rod.
Claims10
An apparatus for positioning a web with respect to the print mechanism of a printer, the web defining two parallel continuous marginal edges comprising:
- a main support frame carrying an elongated support member in the form of a rod mounted upon the support frame, the axis of the rod being substantially parallel to the plane of the web;
- slide means in the form of a tube coaxially positioned over said rod for selective movement therealong;
- first means for engaging the web at a fixed location adjacent one of the margins thereof, said first web engaging means being carried upon said slide means for selective movement therealong;
- second means for engaging the web at a second fixed location adjacent an alternate margin of the web, said second web engaging means being mounted in a fixed position upon said tube;
- and
- first means for releasably securing said first web engaging means to said tube so as to facilitate relative spacing between said first and second web engaging means whereby relative movement of said first and second web engaging means provides selective adaptation of the apparatus to varying web widths and movement of said tube with respect to said rod provides selective orientation of the web with respect to the print station.
Dependencies are inferred from the claim text.