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Publication numberUS924215 A
Publication typeGrant
Publication dateJun 8, 1909
Filing dateNov 16, 1908
Priority dateNov 16, 1908
Publication numberUS 924215 A, US 924215A, US-A-924215, US924215 A, US924215A
InventorsGeorge K Andrews
Original AssigneeGeorge K Andrews
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Erasing device for type-writing machines.
US 924215 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

G. K. ANDREWS. ERASING DEVICE FOR TYPE WRITING MACHINES.

Patented June 8, 1909.

APPLICATION FILED NOV.16, 1908.

specification.

PATENT OFFICE.

GEORGE K. ANDREWS, OF WEBSTER GROVES, MISSOURI.

ERA$ING DEVICE FOR TYPE-WRITING MACHINES.

No. 924,215. Specification of Letters Patent Patented June 8, 1909.

Application filed November is, 1908. Serial No. 462,960.

To all whom itma/y concern:

Be it known that I, GEORGE K. ANDREWS, a citizen of the United States of America, residing at Webster Groves, in the county of St. Louis and State of Missouri, have invented certain new .and useful Improvements in Erasing Devices for Type-Writing Machines, of which the following is afull, clear, and exact description, reference being had to theaccompanying drawings, forming part of this My mventlon relates to an attachment for typewriting machines whereby erasures upon sheets of paper or othermaterial written u on in the machinesmay be efficiently, readi y, and rapidly accomplished through mechanical means applied to the typewriting machines adjacent to the carriages.

Figure I is a to or plan view of a type writing machine s own in dotted lines, and my erasing device shown in full lines thereon. Fig. II is an enlarged top or plan view of my erasing device. Fig. II is an enlarged cross section taken on the line III-III of Fig. II. Fig IV is an enlarged cross'section taken on the line IV-IV of Fig. II.

In theaccompanying drawings:1 designates a bearer bar that is adapted to be suitably secured to the top frame of a'typewriting machine beneath the carriage when said carriage is in its normal position. The

ed'into the top frame of typewriting Ina-- chine to connect the bearer bar to said frame, but any other desirable means of attaching the bearer bar may be employed. At one side of the bearer bar is a stop lug or member 3 that projects upwardly above the plane of the bearer bar.

4 designates an eraser carrying lever that is pivoted'at 5 to the bearer bar 5 and is providedwith an outer arm which extends outwardly to oneside of thety ewriting machine and terminates in a ham le 6 by which the eraser carrying lever may be swung to and fro by rocking it upon its pivot point 5. At the inner end of the eraser carrying lever are transverse arms 7 and 8, the arm 8 being provided with a socket 9 that is adapted to receive an eraser. 10 that may be of rubber, or other suitable abrasive materiaL,

In the practical use of my erasing device, after it has been suitably attached to the frame of a typewriting machine so as to ocfro by operation of the eraser carrying lever (I. The 0 erator then, by grasping the han dle 6 of t e eraser carrying lever manipulate s said lever to impart an oscillating movement thereto, as a result of which the eraser 10 is swung to and fro in abrasive contact with the sheet'of material in the typewriting machine carriage to perform the erasure of a character thereon which it may be desired to erase. During the erasing operation, the carriage of the typewriting machine remains in a lowered position, and the weight thereof offers sufficient resistance to the upward movement of the carriage and the sheet of material therein so that the erasing action may be performed and the transverse arm 7 of the eraser carrying lever swings backwardly and forwardly upon the bearer bar 1 and acts as a resistance member to prevent downward movement of thein'ner arm of the lever during the erasing action.- The stop member 3 projecting upwardly from the bearer bar 1 serves to limit the de ree of movement of the eraser carrying lever when the eraser is moved in a backward direction in erasing action.

I claim 1. The combination with a typewriting 'machine having a frame, a carria e, and a lat en mounted in said carriage, e an erasmg device comprising a bearer adapted to be attached to the frame of said typewriting machine, an eraser carrying member swingingly connected to said bearer, an eraser carried by said eraser carrying member and swung transversely of said platen by said carrying member. ,2. The combination with a typewriting ,machine having a frame, a carriage, and a platen mounted in said carriage, of an erasing device comprising a bearer adapted to be attached to the frame of said typewriting machine, an eraser carrying lever swingingly connected to said bearer, and an eraser carried by said eraser carrying lever and swung transversely of said platen by said lever.

' 3. The combination with a typewriting machine having a frame, a carria e, and a platen mounted in said carriage, 0 an erasmg device comprising a bearer adapted to be attached to the frame of said typewriting machine, an eraser carrying member swingingly connected to said bearer, an eraser carried by said eraser carrying member and swung transversely of said platen by said carrying member, and a stop for limiting the degree of movement of said eraser carrying member. y

4. The combination with a typewriting machine havin a frame, a carria e, and a platen mounte in said carriage, 0 an erasing device comprising a bearer adapted to be attached to the frame of said t pewriting machine, an eraser carrying member swingingly connected to said bearer, an eraser carried by said eraser carrying member and swung transversely of said platen by said car mg member, said erasercarrying member being provided with a resisting member operable upon said bearer.

GEORGE K."ANDREWS. In presence 'of HOWARD G. 0001:, WALTEn ALLEN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4024943 *Jan 13, 1976May 24, 1977Steiner Dennis DMarking apparatus for stenographic typewriter or the like
Classifications
Cooperative ClassificationB41J11/60