US1928374A

US1928374A - Typewriting machine

Info

Publication number: US1928374A
Application number: US638509A
Authority: US
Inventors: George G Going
Original assignee: Remington Typewriter Co
Current assignee: Remington Typewriter Co
Priority date: 1932-10-19
Filing date: 1932-10-19
Publication date: 1933-09-26
Anticipated expiration: 1950-09-26

Description

sfii. 26, 1933. a some 1,928,374

TYPEWRITING MACHINE Filed Oct. 19, 1952 WITNESSES I lNVgN TOR 739 7 "a w Patented Sept. 26, 1933 g 1,928,374 TYPEWRITING, MACHINE George G. Going, Glenbrook, Conn., assignor to Remington Typewriter Company, Ilion, N. Y., a corporation of New York Application October 19, 1932. Serial No. 638,509

6 Claims.

7 My invention relates to typewriting and like machines and more particularly to type bar rests therefor. v

The main object of my invention, generally stated, is to provide a comparatively simple and inexpensive type bar rest which reduces the noise .of the impact of the type bars against the rest to the minimum, reduces the rebound of the type bars from the type rest, and provides against the type bars cutting into the pad which constitutes part of the rest. I

To the above and other ends which will hereinafter appear my invention consists in the features of construction and arrangements of parts hereinafter set forth and particularly pointed out in the appended claims.

In the accompanying drawing wherein like reference characters indicate corresponding parts in the different views Fig. 1 is a detail, front view, with parts in section, of a type bar rest constructed in accordance with my invention together with a number of type bars shown supported thereby.

Fig. 2 is a detail, fragmentary, front view of the same.

Fig. 3 is an enlarged, detail, fragmentary, transverse, sectional view of the type rest showing the type bars supported thereby.

Fig. 4 is a detail, perspective view of the type rest.

Constructions have been devised heretofore with a view to reducing the rebound of the type bars from the type rest, thus preventing co1lision near the type rest between a rebounding type bar and another one adjacent thereto which is being moved to the printing position. In many of such prior constructions there not only is no reduction of the noise incident to the type bars striking the type rest, but such noise is even more pronounced than in ordinary constructions devoid-of antirebound features. Moreover, in all of such con structions, so far as applicant is aware, the impact of the type bars against a soft covering will eventually out through and injure the surface of 'the type rest.

By my invention I have overcome these difficulties and provide an effective type rest which reduces the noise of the impact of the type bars to a minimum or entirely eliminates such noise and presents a metal surface that constitutes the contact face of the rest with which the type bars coact and thus prevents a cutting through of any soft textile-or like surface and reduces the rebound of the type bars from the type rest.

In the accompany ng drawing I have illustrated only so much of a front strike typewritingmachine as is necessary to arrive at an understanding of my invention in its embodiment therein.

7 The type rest comprises a support 1 which in the present instance is preferably made of sheet metal and is substantially U-shaped in cross section to' provide a trough-like container or sup port for the other elements of the type rest. The

support 1 is secured by any suitable means'on the frame of the machine when employedin a shifting platen machine and tothe type bar segment when employed in a shifting segment machine.

Seated in the support 1 is a relatively thick pad 2. The felt from which the pad is made is soft,

loosely matted and highly-yielding oreasily compressible and has comparatively slight resiliency. It is an important factor that the felt be of a soft, easily compressible nature such as will readily yield to the impacts of the pivoted type coil of wire to a pad throughout its length with the aid of rubber cement provides an effective means for connecting the wire coil or spring to the pad. I also have found in practice that by the provision of a coil or spring of steel wire having a gauge of from .010 to .015 and of about 1 of an inch in diameter with the convolutes thereof arranged contiguous to one another, excellent results will be accomplished.

It will be seen that by this construction the wire coil 4 is supported wholly by the felt pad 2 in a position to receive the impacts of the type bars 3 directly on the wire coil and that the coil provides a support on which the type bars normallyrest; the type bars never coacting directly with the felt pad.

From an inspection of Fig. 1 it will be understood that the character of the type rest is such that a type bar will flex the coil and pad by the force of the impact and weight of a type bar, as indicated'at a. remain in this condition until an adjacent type bar at a distance of from one to four spaces therefrom is actuated and returns to normal position, as indicated at b in Figs. 1 and 2. Ihe effect of this impact against the coil by an adjacent type bar is to restore the type rest and type bar in- The type bar rest will often i dicated at a in Fig. 1 to a normal condition, as shown in Fig. 2. It will be seen, therefore, that while the type bar rest is apt to be indented, as indicated at a, which aids in effecting a substantially noiseless arrest of the type bar and in reducing rebound, the type rest will, nevertheless, be restored to its original form eliminiating the indentations therein during the operation of the machine and by the subsequent impacts of the adjacent type bars against the type rest.

While I refer herein to the softness of the pad 2 and the comparatively loose character of the felt, and to the comparatively slight resilience thereof, it will be understood that I mean thereby that the pad shall have such characteristics to a degree which will carry out the purposes hereinbefore set forth. This is also true of the wire coil and I do not intend to be restricted to the dimensions of the coil nor to the gauge of the wire employed therein since it is obvious that various changes may be made in the structure without departing from my invention as it is defined in the accompanying claims. r

WhatI claim as new and desire to secure by Letters Patent, is:

1. A type bar rest' for typewriting and like machines, comprising a, felt pad, and a wire coil resting on the upper surface of said pad and constituting the contact surface against which the type bars strike and on which they rest.

2. A type bar rest for typewriting and like machines, comprising a segmental support, a comparatively loosely matted soft and easily compressible felt pad having but a comparatively slight degree of resiliency supported on said segmental support, and a wire coil supported on the upper side of said felt pad and constituting the contact surface against which the type bars strike and on which they normally rest. a

3. A type bar rest for typewriting and like machines, comprising a segmental support, a comparatively loosely matted soft and easily compressible felt pad having but a comparatively slight degree of resiliency supported on said segmental support, and a coil of fine wire having closely arranged convolutes fixed on the upper surface of said felt pad and projecting upward therefrom and constituting the contact surface against which the type bars strike and on which they normally rest.

4. A type bar rest for typewriting and like machines, comprising a segmental support, a comparatively loosely matted soft and easily compressible felt pad having but a comparatively slight degree of resiliency so that it will not always restore itself to its original shape after a receiving a blow from and the weight of a type bar, and a coil of fine wire cemented to the upper surface of said felt pad and projecting upward therefrom andconstituting the contact surface against which the type bars strike and on which they normally rest.

'5.'A type bar 'rest for typewriting and like machines, comprising a sheet metal segmental support substantially U-shaped in cross section, a comparatively loosely matted soft and easily compressible relatively thick felt pad contained in and supported by said support, and acoil of fine wire having contiguously arranged convolutes cemented to the upper surface of said felt pad throughout the length of the coil and projecting upward from the pad and constituting the contact surface against which the type bars strike and on which they normally rest, 7

-6. A type bar rest for typewriting and like machines, comprising a segmental support, a comparatively loosely matted soft and easily compressible felt pad having but a comparatively slight degree of resiliency so that it will not always restore itself to its original shape after receiving a blow from and the weight of a type bar, and-a coilof fine wire cemented to the upper surface of said felt pad and projecting upward therefrom and constituting the contact surface against which the type bars strike and on which they normally rest, the character of the coil being such that it will follow and conform to an indenture made in the pad under the impact of a type bar and will remain in such condition until the coil is struck by an adjacent type bar which results, in restoring the coil and pad to its original form.

GEORGE G. GOING