US479359A - Isaac goldkind - Google Patents

Description

(No Model.)

I. GOLDKIND. INUANDESCBNT LAMP SOCKET.

No.zzxvg'gs'sla;fl l Patented July 19, 1892.

W/T/VESSES Y /NVENTOH f/ I l' BY 7 M f f f I l by O ATTO/mgm.

NITED STATES firmare@ ISAAC GOLDKIND, OF NEW YORK, N. Y., ASSIGNOR TO LOUIS STIRN AND JULIUS SOMBORN, OF SAME PLACE.

INCANDESCENT-LAMP SOCKET.

SPECIFICATION forming part of Letters Patent No. 479,359, dated July 19, 1892.

Application led December 15, 1891. Serial No. 415,100. (No model.)

To all whom it may concern:

Be it known that I, ISAAC GOLDKIND, a subject of the Emperor of Russia, and a resident of the city of New York, in the county and State of New York, have invented certain new and useful Improvements in Incandescent-Lamp Sockets, of which the followingis a specification.

This invention relates to that class of sockets for incandescent electric lamps in which a switch is arranged for controlling the current, which switch is operated by the downward motion of a lever that is so arranged as to alternately throw the lamp in or out of circuit, so that the lamp can be readily lighted or eX- tinguished, even when the same is in position so that it could not be reached easily, and that the keys or other switch-operating devices would be inconveniently applied.

The invention consists of a socket for incandescent lamps in which is arranged a switch for throwing the lamp alternately in or out of circuit by the action of an oscillating lever and an intermediate oblong block that is alternately moved in or out of contact with contact-springs by a spring-actuated clutch in connection with a suitable pawland-ratchet device, as will be fully described hereinafter, and finally pointed out in the claims.

In the accompanying drawings, Figure 1 represents a side elevation of my improved incandescent-lamp socket. Fig. 2 is a vertical transverse section of the same on line 2 2, Fig. l, on an enlarged scale. Fig. 3 is also a transverse section of the same, taken on a plane at right angles to that on which Fig. 2 is taken; and Figsni and 5 are horizontal sections on line 4c t, Fig. 2, showing the lamp respectively switched in and out of circuit.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents thc exterior holder or shell of my improved incandescent-lamp socket. In the interior of the same is arranged a cylindrical socket B, of hard rubber or other suitable insulating material, to the base of which are attached `two contact-springs C, which extend parallel with each other up through the socket B and which are connected at their lower ends with the conducting-wires. The upper ends of the contact-springs C form metallic contact with the conducting-pieces at the lower part or base of the incandescent lamp that is inserted into the socket B. When the contact-springs are spread apart, the contact with the conducting -pieces is interrupted. Vhen the pressure on the contact-springs is released, the same return by their own spring action into normal position. Spreading or releasing of the contactsprings O is produced by means of an oblong block D, which is attached to a spindle or shaft d, that is supported in suitable bearings of the socket B. To

the spindle d is applied a ratchet-wheel e, which is provided with four teeth, said ratchetwheel being engaged by a spring-actuated check-pawl e', that is pivoted to the interior of the socket B, as shown clearly in Fig. 3.

At one side of the ratchet-wheel e is arranged one member of a clutch f, which is also provided with four teeth, which are in line with the teeth of the ratch et-wheel e and which mesh with a second member of a clutch f', which member is also provided with four teeth, and which is arranged on the end of a sleeve f2, that is mounted loosely on the spindie d and provided with a fixed lever F, that extends through a longitudinal slot b Z2 in the socket and holder to the outside of the same. A helical spring f3 is placed around the sleeve f2 and attached at one end to the lever F and at the opposite end to the iixed bearing of the spindle d, said spring exerting not only a spring action on the lever F, so as to return the same into its normal position after the same has been pulled in opposite dirrection to the tension of the spring f3, but which also exerts a lateral pressure on the sleeve f2, so as to retain the members ff of the clutch in mesh with each other. The spring thus has two functions-namely, the return of the lever F and, secondly, the interlocking of the members of the clutch device f f. To the outer end of the lever F is attached a chain g, cord, or other suitable device by which the same can be pulled in downward direction until it arrives at the end of the slots b b as shown in dotted lines in Fig. l. By tlius swinging the lever F a distance about equal to the length of a quadrant the sleeve f2 and IOO the spindle g, to which the sleeve f2 is connected by the clutch f f', are also moved through a quadrant of a circle, so that the ratchet-wheel e is turned for the distance of one tooth and likewise the oblong block D is moved through an angle of ninety degrees. As soon as the downward motion on the lever is released, it is returned by the spring f2 into its normal position again, in which case the sleeve f2 gives suciently in a lateral direction, so that the spring-actuated member of the clutch f can pass over the member f, that is applied to the spindle d during the return motion of the lever F. The check-pawl e prevents the spindle d from following the motion of the sleeve f2 during the return motion of the lever F. It thus appears that the spindle d and the oblong block D are moved at every downward motion of the lever F through a quadrant of a circle, so that the oblong block D alternately makes contact with springs, so as to bring the lamp into circuit, or makes contact and assumes a position parallel with the contact-springs, so that they return to their normal position and throw the lamp out of circuit, as no current can then pass to the lamp. During the return motion of the` lever the position of the blockD is not disturbed, nor is the position of the springs disturbed, as the check-pawl c prevents the turn of the spindle d and the block D during the return movement of the lever F. The lamp is therefore switched in, while the next downward motion of the lever switches the same out of circuit.

The throwing in or out of circuit of the lamp by the oscillating motion of the lever F has the advantage that the switch mechanism can be used with lamps which are not convenient to access, as it is not necessary to get up to the lamp for turning a key or other switch device. Access is thereby given to any lamp whatever its position, and the very convenient and reliable switching in and out of the same produced. In case the lamp is to be suspended from the holder the entire switching mechanism must be reversed, so that it can also be operated by merely pulling the chain or cord. y

Having thus described lny invention, what 5o I claim as new, and desire to secure by Letters Patent, is-

l. The combination of a socket provided with electrical conductors, a spindle arranged between said conductors, an oblong block on said spindle, a ratchet-Wheel and pawl also arranged on said spindle, a lever, and a clutch device interposed between the lever and the spindle, so as to produce the turning of the block when moving the lever in downward direction without turning the spindle when the lever is returned by its spring in upward direction, subtantially as set forth.

2. The combination, with a socket having electrical conductors, of a rotary spindle arranged between said conductors, a block on said spindle adapted to engage or release the said conductors, a ratchet-Wheel on said spindle, a check-pawl engaging said ratchet-wheel, a sleeve mounted loosely on said spindle, a lever attached to said sleeve, a helical spring acting on said lcver and sleeve, and a clutch device between the sleeve and the spindle, substantially as set forth.

In testimony that I claim the foregoing as 75 my invention I have signed my name in presence of two subscribing witnesses.

ISAAC GOLDKIND.

Witnesses:

A. I. MoRoNEY, CHARLES SCHROEDER.

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