US840912A

US840912A - Envelop-opener.

Info

Publication number: US840912A
Application number: US31721106A
Authority: US
Inventors: Frederic M Coffill
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-05-16
Filing date: 1906-05-16
Publication date: 1907-01-08
Anticipated expiration: 1924-01-08

Description

No; 840,912. PATENTED JAN. 8, 1907.-

' P. M. 00mm.

ENVEL'QP OPENER.

APPLICATION FILED MAY 16, 1906.

. Zlmzanfoz dotted lines in Fig. 1.

i normally liesadjacent to the'side of the body of this character which may be conveniently FREDERIC M. COF FILL, OF NORTH ADAMS, MASSACHUSETTS.

ENVELOP- Specification of Letters Patent.

OPENER.

Patented Jan. 8, 1907.

Application filed May 16. 1906. Serial No. 317,211.

To all whom it may concern:

Be it known that I, FREDERIC M. CoriuLL, a

citizen ofthe United States, residing at;

North Adams, in the county ofBerkshire and I State of Massachusetts, have invented new and useful Improvements in Envelop-Openers, of which the following is a specification.

This invention relates to envelop-openers, being designed especially as an attachment for pencils, and has for its objects to produce a comparatively simple inexpensive device applied. for use on the pencil, one wherein the cutting edge of the blade .Will be normally protected by the pencil, and one wherein the pencil serves as a handle for the opener.

With these and other objects in view the invention comprises the novel features of construction and combination of parts more full; hereinafter described.

in he accompanying drawings, Figure 1 is a side elevation of a pencil equipped with an envelop-opener embodying. the invention. F ig. 2 is a section taken on the line 2 2 of Fig. 1. Fig. 3 is a perspective view of the opener.

Referring to the drawin s it will be seen that the device comprises a blade 1 anda tubular portion or shank 2, adapted to receive and fit upon a pencil or analogous body 3 on which it is adapted to slide for projecting the blade to active position, as illustrated by The blade 1, which together with the shank 2, is preferably composed from a single piece or blank of sheet metal, has a sharpened cutting edge 4, which 3 and is ointed at its outer or forwardend, as at 5, or ready entrance beneath the enversely of the blade in a plane beyond the cutting edge 4, whereby the pencil will, when inserted through the shank, cover and protect said cutting edge,-as heretofore mentioned.

In practice the pencil is inserted through the tubular shank 2 a suflicient distance to velop i'lap, while the shank is offset transwholly cover and protect the sharpened edge ried in the pocket and brought into action. at

will and one which constitutes an inexpem.

sive attachment for the pencil.

Having thus described my invention, what I claim is As a new article of manufacture, an envelop-opener formed from a single piece of material and comprising a fixedblade having a cutting edge and a tubular] shank, said shank being disposed whollyto one side ofthe blade in a direction transversely 'thereof and in line with and parallel to the said cutting edge and designed for the reception of a body to cover and protect said cutting edge, the latter being formed on a straight line parallel with the body when in place.

In testimony whereof I afiiX my signature in presence of two witnesses.

FREDERIC M. CQFFILL.

Witnesses:

ANNA RYAN, WILLIAM M. BURCH.