|Publication number||US569196 A|
|Publication date||Oct 13, 1896|
|Filing date||Apr 21, 1894|
|Publication number||US 569196 A, US 569196A, US-A-569196, US569196 A, US569196A|
|Inventors||Egbert Sylvester Graham|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (2), Classifications (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
( No Moaiel.)
-' R. S. GRAHAM 8; W. B. SAVBLL.
. TYPE WRITING MACHINE GUSHION KEY.
No.. 569,196. Patented Oct. 13, 1896.
5 ,6 2/, I-1 glllli l Wifizessea= I I UNITED STATES PATENT OFFICE.
ROBERT SYLVESTER GRAHAM AND WILLIAM BENJAMIN SAVELL, OF
NEWARK, NEW JERSEY, ASSIGNORS TO THE TYPE-WRITER 'CUSH-. ION-KEY COMPANY, OF SAME PLACE. 4
SPECIFICATION forming part of Letters Patent No. 569,196, dated October 13-, 1896.
Application filed April 21, 1894.
To all whom it may concern."
Be it known that we, ROBERT SYLVESTER GRAHAM and WILLIAM BENJAMIN SAVELL, citizens of the United States, and residents of Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Cushioned Keys for Type-Writing or other Machines, of which the following is a specification.
In the accompanying drawings one form is shown in Figure 1, which is a section of the cushion detached. Fig. 2 is a section of the same applied to the key, and Fig. 3 a plan of the same applied to the key. Another form is shown in Fig. 4., which is a section of the cushion applied to the key; and Fig. 5 is a plan of the same. Another form is shown in Fig. 6, which is a section of the cushion detached. Fig. 7 is a section of the same applied to the key, and Fig. 8 a side view of the key detached.
In the form shown in Figs. 1, 2, and 3 the cushion consists of the soft-rubber band (shown detached in Fig. 1) consisting of the cylindrical body a,having an inwardly-turned bead b at the top. The body ais made of lesser diameter and longer than the key 0, so that when it is stretched over the key a, as shown in Fig. 2, its elasticity will carry its lower edge under the key, as shown at cl. In use the finger of the operator will strike upon the flange b, overlying the top of 'the key, which flange b will constitute the cushion. The opening b will serve to expose the top of the key and display the letter, if any there be thereon.
The form shown in Figs. 4 and 5 is of the same construction as that just described, with the addition of an external band or ringof comparatively rigid material e, to be fitted over the body a and more securely hold it in place.
In the form shown in Figs. 6, 7, and 8 the cushion consists of the body a and the flange b, as before, but the body a is shorter than the key and is secured thereto by springing the lower portion cl into a groove f, formed on the periphery of the key 0. Figs. 6 and 7 also show a modified form for the flange b, which may be used to advantage for increas- Seria1No.508,496. (No model.)
2. A cushion attachment for type-writer and similar keys having its upper portion extended over the top of the key and open at its center to expose the character on the key.
3. A cushion attachment for type-Writer and similar keys formed of yielding material and constructed to expose the underlying character on the key.
4. A cushion attachment for type-Writer and similar keys extended over the key to form a yielding touch-surface said cushion being open at its center to expose the character on the key.
5. A cushion attachment for type-writer and similar keys consisting of an elastic band to be fitted over the key and extended over the plane of the top thereof and having asight-opening to expose the character on the key.
6. A cushion attachment for type-writer and similar keys having its upper edge curved inward to form a cushion-roll and leave an open center.
7. A cushion attachment for type-writer and similar keys having an open center to expose the character on the key beneath and a cushion-roll bounding the walls of said opening.
8. A key-cushion consisting of a soft-rubber cylinder having an inwardly turned flange at the top leaving an opening for exposing the top of the key.
9. In combination with a key, a soft-rubber cylinder of lesser diameter than the key, and having, when applied to the key, a lip or flange extending inwardly on top of the key and leaving an opening to expose the top of the key.
10; A key=cushion consisting of a soft-rub.-
' jecting into said groove.
Signed at Newark, in the county of Essex and State of New Jersey, this 17th day of 1 6 April, A. D. 1894.
ROBERT SYLVESTER GRAHAM. WILLIAM BENJAMIN SAVELL. Witnesses:
FREDERICK A. W. BAKER, FRANK L. BOPPE.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2485213 *||Apr 23, 1945||Oct 18, 1949||Felt & Tarrant Mfg Company||Actuator button|
|US3730322 *||Mar 24, 1970||May 1, 1973||Litton Business Systems Inc||Changeable type heads and changeable key caps|