US593237A - Electric switch for chandeliers or brackets - Google Patents

Description

(No Model.) 7

J. W. PARKIN. ELECTRIC SWITCH FOB. GHANDELIERS 0R BRACKETS.

No. 593,237. Patented Nov. 9,1897.

ATTORNEY WXTNESSES was twice.

JO$EPI-I PARKIN, OF PHILADELPHIA, PENNSYLVANIA.

ELECTRIC SWlTCH FOR CHANDELIERS OR BRACKETS.

SPECIFICATION forming part of Letters Patent 210,593,237, dated November 9,1897.

Application filed January 26, 1897. $erial No. 620,731. (No model.)

T0 at whom, it may concern/.-

Be it known that I, JOSEPH W. PARKIN, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in Electric Switches for Chandeliers, Brackets, the, which improvement is fully set forth in the following specification and accompanying drawings.

My invention consists of an improved construction of electric switch for chandeliers, brackets, &c., the novel features of which will be hereinafter fully set forth, and specifically pointed out in the claims.

Figure 1 represents a plan view of an electric switch embodying my invention, the top or cap thereof being removed. Fig. 2 represents asection on line mm, Fig. 1. Fig. 3 represents a sectional view of the switch seen in Fig. 1, the plug thereof being shown in elevation. Fig. 4 represents a section on line y 12 Fig. 1. Fig. 5 represents a plan view of the switch with the top or cap removed similar to Fig. 1, but with the contact device or breaker also removed. Fig. 6 represents a bottom plan view of the plug employed. Fig. 7' represents a perspective view of the contact-breaker removed, a different form of con tact-breaker being shown from that seen in the other figures. Fig. 8 represents a sectional view of another embodiment of the principle of my invention, showing the cap or top of the switch screwed into the casing.

Similar letters of reference indicate corresponding parts in the several figures.

Referring; to the drawings, A designates the casing of a switch, in the lower portion of which is rotatably mounted the stem G, having the finger-piece C, said stem passing through an opening E in the plug D, which latter has in its lower portion at a side thereof the groove or recess F, in which is located the main conductor G, which passes through the opening G in said casing, whereby the said plug will be prevented from turning and at the same time the said conductor will be insulated.

H designates threaded stems or screws which pass through the plug D on opposite sides of the stem 0 and hold in place the contact-plates J, the latter as well as said screws being composed of suitable conductive material, while the plug D is composed of non-conducting material, it being evident that the plates J may be omitted, if desired, and the screws H alone employed to make the circuit.

K designates nuts which engage the threaded portion of each of the screws H, which latter serve as binding-posts, said nuts holding in position the conductors L, one of which leads to the electric light or other device. M designates a contact device or breaker, which is insulated from the stem 0 by means of a non-conducting collar M, as will be understood from Fig. 2, the contact device being provided with the wings N, which latter are deflected downwardly, as will be understood from Fig. 3, the ends of said wings N contacting either with the plates and screws J H or the intermediate spaces Jof the nonconducting plug D, it being understood that the spaces J as well as the intermediate portions upon which the plates J rest are recessed, as will be understood from Figs. 3 and i, so that while the contact device M and stem 0 can be freely rotated in one direction rotation in the opposite direction will be prevented by the contact of the ends of the wings N with the shoulders J on said plug.

P designates a cap or cover for the casing A, in which the extremity of the stem C- has a bearing, the said cap being secured to said casing by means of the screw R, which is insorted in the end of said stem and has its head in contact with said cap.

The operation is as follows: The main current passes through the conductor G to the lamp or other desired point, and when the parts are in the position indicated in Fig. 3, in which the wings N are in contact with the binding-posts H or plates J, the circuit will be completed, the current passing through one of theeonductors L to its binding-post H and thence through the wings N of the contact device over to the opposite binding-post and thence out through the other or opposite conductor L. To break the circuit, it is only necessary to rotate the stem 0, and consequently the contact-breaker, until the wings N rest upon the surfaces J of the plug 1).

When the cap seen in Fig. 8 is employed, the stem 0 (seen in Fig. 7) is employed, said stem having ahead D of insulating material, thereon, which is provided with the squared It will of course be evident that changes may be made by those skilled in theart which 1 Will come within the scope of my invention,

and I do not, therefore, desire to be limited in every instance to the exact construction I have herein shown and described.

Having thus described my invention, what L I claim asnew, and desire to secure by Letters Patent, is-

1. An electric switch for chandeliers, &c., a casing having openings in its sides, a cap covering anopenin g in said casing, a rotatable stem in said casing, a non-conducting plug through which said stem passes, contactpoints carried by said plug, conductors connected with said contact-points, contact devices mounted on and insulated from said stem, adaptedto contact with said points, and a groove in the under side of said plug adapted to sustain the conductor, whereby said plug is prevented from turning.

2. An electric switch for chandeliers, &c., a casing having openings in its sides, a cap covering an opening insaid casing,a rotatable stem in said casing and in said cap, means connected with said stem for holding said cap in place, a non-conducting plug through which said stem passes, contactrplates on said plug, contact-points connected with said plates, conductors connected with said contact-points,

contact devices mounted on and insulated from said stem, adapted to contact with said plates and a groove in the under side of said plug adapted to sustain the conductor, whereby said plug is prevented from turning.

3. An electric switch for chandeliers, consisting of the casing A, having the base B, and provided with the openings G and cap P, the rotatable stem 0 journaled in said base and cap and provided with the handle 0, the stationary non-conducting plug D, having the recess F and provided with recesses on its upper face forming shoulders, the conducting-plates J on said face, binding-posts H in said plug communicating with said plates,

conductors connected with binding-posts, and the contact device M mounted on but insulated from said stem and having the elastic Wings N, riding on said plug.

e 4. An electric switch for chandeliers, &c., a casing having an opening in its sides, a cap covering an opening in said casing, arotatable stem journaled in said casing and having a polygonal portion, a non conducting plug through which said stem passes, means for preventing said plug from turning, contactpoints on said plug, conductors connected with said points, and a contact device having a polygonal opening mounted on said stem, but insulated therefrom and adapted to contact with said points.

JOSEPH W. PABKIN. Witnesses:

JOHN A. WIEDERsHEIM, WM. 0. WIEDERSHEIM.

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