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Publication numberUS207708 A
Publication typeGrant
Publication dateSep 3, 1878
Filing dateJan 31, 1878
Publication numberUS 207708 A, US 207708A, US-A-207708, US207708 A, US207708A
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Improvement in thumb-stalls for facilitating the sorting of letters
US 207708 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

J. 'S. BUYER. Thumb-Stall for Facilitating the Sorting of Letters.

Patented Sept-3, 1878.

. eaves,

IEFETERS, PHQTO-LITHOGRAPHER. WASHINGTPN. D C.

UNITED STATES PATENT OFFICE.

JOHN S. BOYER, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN THUMB-STALLS FOR FACILITATING THE SORTING 0F LETTERS.

Specification forming part of Letters Patent No. 207,708, dated September 3, 1878; application filed January 31, 1878.

- office clerks and others to sort letters and other documents without wetting their thumb and fingers; and this object I attain by a rubbeithumb-stall perforated, ribbed, or roughened in the manner described hereinafter.

In the accompanying drawing, Figure 1 shows the thumb-stall and the manner of applying and using the same; Fig. 2, a section of the stall, and Fig. 3 a modified form of stall.

The thumb-stall A consists of a tube of rubber of such a size that it must be stretched to fit over the-thumb and to embrace the latter tightly. The tube may be open at the end, as shown, or closed, and is perforated at the portion a, which is brought into immediate contact with the letters or other papers. It may also be perforated at other points for ventilatin g purposes. The rubber, owing to these perforations, has such a frictional affinity for the surface of the paper that a letter-sorter can distribute a mass of letters, separating letter after letter from the mass, Without resorting to the usual plan of periodically wetting his fingers and thumb.

The surface of the rubber would be apt to wear smooth in the absence of the perforations, which always insure the desired frictional contact.

Ribs or projections c 011 the stall will have the same effect as the perforations, or the thumb-stall may be roughened on the surface in any other manner.

I claim as my invention- The within-described thumb-stall, composed of rubber perforated, ribbed, or roughened, as set forth.

In testimony whereof I have signed my name to this specification in the presence of two sub scribing witnesses.

JOHN S. BOYER.

Witnesses:

HARRY A. CRAWFORD, HENRY HowsoN, Jr.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2781044 *Jan 25, 1956Feb 12, 1957Bennett Verna RToe shield
US3311977 *Feb 12, 1964Apr 4, 1967Drake Daniel HTooth finishing appliance
US4763940 *Jul 20, 1987Aug 16, 1988Held Curtis NDocument handling aid
US5575296 *Apr 6, 1995Nov 19, 1996Peck; Edward F.Finger puncture protector
US6951032 *Dec 19, 2003Oct 4, 2005Mark RifkinThumb protection device
US7118015 *Oct 20, 2003Oct 10, 2006Liuxin NewmanThimble
US20040099701 *Oct 20, 2003May 27, 2004Liuxin NewmanThimble
US20120167274 *Oct 5, 2010Jul 5, 2012Jan TumaSupport device
Classifications
Cooperative ClassificationA61F13/105