US875376A - Handle for rotary snap-switches. - Google Patents

Description

NO. 875,376. I PATENTED DEC. a1, 1907.

J. G. PETERSON.

HANDLE FOR ROTARY SNAP SWITCHES.

APPLICATION FILED NOV. 21, 1905.

.INVENTOR' HATTO R N EYS.

UNITED STATES PATENT OFFICE.-

J OHANN GODFREY PETERSON, OF BRIDGEPORT, CONNECTICUT, ASSIGN'OR TO THE PERKINS ELECTRIC SWITCH MANUFACTURING PORATION OF CONNECTICUT.

COMPANY, OF BRIDGEPORT, CONNECTICUT, A COR Specification of Letters Patent. v

Patented Dec. 31, 1907.

Application filed November 21,1905. Serial No. 28?,403.

To all whom it may concern:

Be it known that I, JOHANN GODFREY PETERSON, a citizen of the United States of America, residing in the city of Bridgeport, in the county of Fairfield, State of .Connectiout, have invented an Improved Handle for Rotary Snap-Switches, of which the following is a specification.

My invention relates-more particularly to that class of handles or turn buttons for rotary snap switches which are secured to and operate the central spindles of the switch mechanisms and at the same time hold the inclosing caps with a yielding pressure. The object of my invention is to construct a strong and efiicient handle of this character.

In the accompanying drawings: Figure 1 is a view of the several parts of my improved handle, ready to be assembled, the handle body being shown in section; Fig. 2 is an inverted plan view of the handle body; Fig. 3 is a similar view of the guide to be embedded in the handle body; Fig. 4 is an end view of the plunger; Fig. 5 is an end view of the s ring; Flg. 6 is a view of the retaining ring; ig. 7 is a section through the handle, showing the parts assembled, but before they are secured in place Fig. 8 is a similar view of the parts when the handle has been com-.

pleted and Fig. 9 is a section on the line 9-9, Fig. 8. 1

' The bodyv A of the handle is preferably molded of suitable insulating material and it is formed with a central hole a, closed at the top of the handle, but open at the bot- .tom. In theside walls of this hole I secure by embedding in the molded composition a guide B, whose legs I), b, are about as long as or longer than the depth of the hole, The cross section of the hole is polygonal and preferably somewhat cylindrical with radiating grooves a) to receive the channeled legs b of the guide B, which channeled legs receive and guide the wings of the head 0 (Fig. 4) of the lunger C. The plunger C is sufiiciently red ilced in diameter be ow its head to leave room for the spiral spring S around it. This s ring is to be confined between the head of the plunger and the ring D, which has a central opening (I of a size to just permit the reduced part of the plunger 0 to lay through it. The ring D is secured 'n p ace by bending down the projecting ends (Fig. 1) of the legs b, b, (Fig. 8) of the guide B, which has been fixedl embedded in the handle body in the mo ding of the latter. The lower end of the plunger C has a screw-threaded hole in it to receive the threaded up er end of the operating spindle P (Fig. 8) o the switch mechanism.

One of the advantages of em loying .a oke B instead of a tube is that t e yoke is ess liable to, cause cracking of the com osition of the handle as it cools when st molded onto the yoke.

I claim as my invention The insulating body of a rotary snap switch handle having a hole with radiating grooves, and a yoke whose legs are in the grooves, in combination with a plunger hav ing wings guided in said grooves, a spring and a retai ring held in position by the bent ends 0 the yoke. a 1

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

' JOHANN GODFREY PETERSON.

Witnesses:

G. W. Goonmnen, Gno. B. Tnonas.

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