US835278A - Handle for electric snap-switches. - Google Patents

Description

PATENTBD Nov. 6, 1906. i

G. W. GUODRIDGE.

AIPLIOATION FILED NOV.,Z1, 1905.

mv'ENToRv 36M w. man

ATTosnEYs K I HANDLE POR ELECTRIC SNAP SWITCHES.

Z m, A f

WITN ESSESI /hwc M, Pf

UNITED STATES PATENT oEEioE.

GILBERT Il". GOODRIDGE, OF BRIDGEIORT. CONNECTICUT, ASSIGNOR TO T HE PERKINS ELECTRIC SWITCH MANUFACTURING COMPANY, OF BRIDGEIORT, CONNECTICUT. A CORPORATION OF CONNECTICUT.

Specification ofLetters Patent.

Patentednpv. 6, 190e.

Application led November 21, 1905. Serial No. 28814.19.

switch mechanisms and at the4 same timehold the inclosing caps to the base with a yielding pressure.

The object-of my invention is to so construct such a handle of a rotary sn'apswitch that it will be economical and easy to manufacture and assemble, have few parts,

and yet be strong and eliicient in use.

In the accompanying drawings, Figure 1 is a view of the several parts of myimproved switch-liano le ready to be assembled, most of the parts being shown in section. Fig. 2

is an inverted plan view of the handle w1thout its parts. Fig. 3 is an inverted plan view of the plunger. Fig. 4 is an end view of the spring. Fig. '5 is a plan view of the cup. Fig. 6 is an end view of the handle with the cup in section before it is secured in place, and Fig. 7 is a a sectional view of the corpplete handle. v

molded of suitable insulatin material, and it .is formed with a polygonal ole c, closed at the top of the handle but open at the under side. In this case the hole is shown as of hexagonal section. In this hole is a plunger B, with a head b of corresponding section,

butof sufficiently reduced diameter below to receive a spiral opening S, on which the under side of the plunger-head b may rest,

Fig. 7. lThe handle 1s formed With the usual wings a a and also with a central hub or projection a2 around the mouth of the open end of the hole a, this projection being sides of the body of the handle, as shown in Figs. 6 and 7. I provide a flan ed sheetmetal retaining-cup C to I it over t 1e outside of this hub or projection, the opposite flanges 4 4 'of this cup being of sufIicient depth to project beyond the shoulders 3, Fig. 7. This cup is provided with a central hole- 5 of a size sufficient to permit the .reduced end of the plunger to play through it, butotherwise closing the bottom of the hole a, so that when the parts are assembled the lower end of the sprin will bear on the cup C, whose Ilanges 4 4 ave meantime been bent over the shoulders 3 3 to hold it to vthe body A, Fig. 7. The plunger-has an internally-threaded' hole 8 at its lower end,'Fig. 1, to receive the upper threadedend of the switch-operating spindle P, Figi?.

In the described constructionV vof switchhandle there are only four parts, as shown, and the composition body. A can be easily and economically molded,'since there is no metallic part to be embedded in it, as is common in this class of handles. taining-cup, moreover, being tted over the projection or hub4 tendsl to strengthen it and The re- 1. The combination ofthe insulating-body Y ofv ,a switch-handle, with a headed plunger and spring, therein, and a retaining-cup secured to the outside of the insulatinbody. e body A of the handle is preferably,

2. The insulating-body of a switc -handle, and a headed plunger and spring therein, the said body having a shoulders, in combination with a retainingcup fitting over said projection and flanged over its shoulders.

In testimony whereof I have signed'my name to thisspecication" 1n the presende of tWo subscribing witnesses.

GILBERT W. GOODRIDGE.

Witnesses:

H. W. GoLDsBoRoUGH, GEO. B. THOMAS.

bottom projection With-

Images