US754863A

US754863A - Electrical plug and receptacle.

Info

Publication number: US754863A
Application number: US17638903A
Authority: US
Inventors: Gilbert W Goodridge
Original assignee: Bryant Electric Co
Current assignee: Bryant Electric Co
Priority date: 1903-10-09
Filing date: 1903-10-09
Publication date: 1904-03-15
Anticipated expiration: 1921-03-15

Description

No. 754,863. PATENTED MAR. v15, 1904. G. W. GOODRIDGE. ELECTRICAL PLUG AND REGEPTAOLE.

APPLICATION FILED 00T. 9, 1903.

l0 IODEL.

WITNESSES INVENTOR' @Ma/.WA 5m/1MM i ATTORNEYS xmms vaina m, mom-Uma.. wAsumoroN, n c,

N0. 754,863. Patented Marchy l5, 1904.

UNITED STATES PATENT OFFICE.'

GILBERT W. GOODRIDGE, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TC THE BRYANT ELECTRIC` COMPANY, OF BRIDGEPORT, CON NECTICU' A CORPORATION OF CONNECTICUT.

ELECTRICAL PLUG AND RECEPTACLE.

SPECIFICATION forming part of Letters Patent No. 754,863, dated March 15, 1904.

Application led October 9, 1903. Serial No. 176,389. (No model.)

' T0 all 11171/0707/ i?? 771160Z/ 00700677111 front to back of the face-plate, as is customary, Be it known that LGILBERT W. GOODRTDGE, I improve the appearance of the face-plate and a citizen of the United States of America, rereduce the number of separable parts by per- 50 siding in Bridgeport, in the county of Fairmanently securing the screws to the rear of the eld, State of Connecticut, have invented Implate, as best shown in Fig. `S-that is, by first provements in Electrical Plugs and Receptaboring out of the back of the plate a hole of cles, of which the following is a specication. the diameter of the screw head, (see left of The object of my invention is to simplify Fig. 8,) then inserting the screwhead and 55 and improve the construction of electrical then by a suitable tool forcing down the ad- IO plugs and receptacles; and this object I attain jacent metal over the beveled face of the screwin the manner which I will now describe. head, as shown at the right of Fig. 8, to firmly In the accompanying drawings, Figure I is fasten the screw to the plate. a vertical section of the plug, and Fig. 2 is a The main body E of the plug is of porcelain 60 corresponding section of the receptacle. Fig. or other suitable insulatingA material and is 3 is a vertical section of the plug at right anmadehollow. It is preferably cylindrical, with gles to the view Fig. l, while Fig. 4 is a cora cylindrical chamber open at the rear or unresponding section of the receptacle. Fig. 5 der side to receive the Correspondingly-shapcd is a face view of the receptacle when the facebutton or diaphragm Cr, of insulating' mate- 65 plate has been removed. Fig. 6 is a face view rial, which carries on one side the contact-pins zo of the body of the plug when the contact-car- D D and on the other side, within the body, rying piece has been removed. Fig. 7 is a the connectinglugs and bindingscrews for plan view of the contact-carrying part when the wires J. Back ot' this chamber receiving detached from the body of the plug. Fig.` 8 this diaphragm Gr there is a chamber of nar- 70 is a sectional view of the receptacle face-plate rower width (oblong, as shown in Fig. 6) to to show how the screws are secured. contain the lugs and binding-screws and also The bod A of the rece tacle, which is of to allow a knot to be tied in the wires J.

y I) porcelain or other suitable insulating mate- The contact-carrying diaphragm G is serial, is preferably cylindrical and has formed cured in place, as shown in Fig. 3, by screws 7 5 in it twolongitudinal holes to receive two plain g g, inserted from the upper or front side of 3o metal tubes B B, which are held in place by the plug through openings in the thickened pins b passing through lateral openings a ct walls formed by making the chamber'for the and threaded into the tubes B, as shown in connections and wires oblong, Fig. 6. These Fig. 2. The rear ends of the tubes are proscrews g g are held in place by nuts g (1, let 8O vided with laterally-inserted binding-screws into the face of the diaphragm, said nuts be- Z/ b', by'which to connectV up the bared ends ing held therein by sealing-wax fw. of the electrical conductors. The forward (in The pins D D have shoulders (Z (Z to abut the drawings the upper) ends of the tubes B B against the diaphragm. Back of these shoul- -are slit, as shown in Fig. 2, to receivethe pins ders the pins are threaded and screwed into D D of the plug, Fig. l. The metallic faceand held in place by the L-shaped lugs H H, plate C for the receptacle has rubber or other the upright arms oi' which carry the bindinginsulated bushings c 0 around the openings, screws /L /t for the wires J within the hollow through whichV the pins D of the plug pass. body E. This face ,is secured to the body of the re- I claim as my invention-d ceptacle by screws F, carried by the plate and 1. A plug-receptacle, consisting of an insu- 45 passing through openings a in the body A, lating-body having holes through it, with a Fig. 4, and held by nuts f. Instead of passplain metal single tube in each of said holes, ing these screws F through openings from carrying a binding-screw at its rear end, and

said button` contacts on the inner side thereof within said chamber, securing-screws for the button passing through the thickened walls of the plug-body, and nuts for the securingscrews.

In testimony whereofI have signed my name to this specification in the presence of two sub- 2O scribing witnesses.

GILBERT `W. GOODRIDGE.

l/Vitnesses:

N. lV. HARDER, H. G. lVALEs.