US271252A - Charles maschmeter - Google Patents

Description

(No Model.)

0. MASGHMEYER.

PULLEY BLOCK.

No. 271,252. Patented Jan.30, 1883.

N. PETERS. Phalwl-ifiwgmphnr, Washington, D c.

UNITED STATES PATENT OFFrcE.

. CHARLES MASOHMEYER, OE BRIDGEPORT, CONN, ASSIGNOR TO THE CRAIG- HEAD & ELVVELL MANUFACTURING COMPANY, OF NEW' YORK, N. Y.

PULLEY-BLOCK.

SPECIFICATION forming part of Letters Patent No. 271,252, dated January 30, 1883.

Application filed February 13, 1882. (No model.)

To all whom it may concern Be it known that I, CHARLES MASOHMEY- ER, of Bridgeport, in the county of Fairfield and State of Connecticut, have invented a certain new and useful Improvement in Suspension Devices for Lamp Fixtures and other Articles, of which the following is a specification.

The object of myimprovement is to provide a simple and convenient suspension device, whereby lamps and other articles may be suspended at any desirable elevation.

To this end my improvement consists in the combination of a pulley, a block in which the same is supported, a chain or tackle passing over the pulley, rigid jaws extending from the block for grasping between them the free end of the chain or tackle, and a spring for forcing the free end of the chain or tackle between said jaws, as more fully hereinafter described.

In the accompanying drawings, Figure l is a perspective view of a suspension device embodying my improvement, and Fig. 2 is a horizontal section oi the same.

Similar letters of reference designate corresponding parts in both figures.

A designates a pulley or wheel adapted to receive a chain or tackle, B, in its periphery. It may be of metal or any other suitable material, and is mounted in a block, (.3, which may be of cast-iron or any other appropriate substance.

At the lower portion the block 0 is provided with iigid jaws a, which extend outward, so that the free end of the chain or tackle B, when it dropsdown, will engage with them, and which are represented as made integral with the block. These jaws may be made integral with the block, and the opening or space between them is preferably V-shaped. Their relation to the periphery of the pulley is such that when the free end of the chain or tackle is allowed to drop it will, by gravity, wedge into the space between the jaws andbe grasped between them. In order to insure aproper engagement of the free end of the chain with these jaws, I may furnish it with a small weight. In lieu of a chain such as I have shown, I may employ any tackle suitable to engage with the jaws.

D designates a light spring of steel or other suitable metal, which is affixed to the block 0 above the jaws a, and bears 'against the free end of the chain or tackle, so as to tend to cause it to engage with the jaws. This spring also tends to prevent the accidental disengagement of the free end of the tackle or chain from the jaws of the block. a

A lamp or any other article tobe suspended may be attached to the chain'or tackle. To elevate or lower the article suspended by the chain or tackle, the free end of the latter is pulled out sidewise-or, in other words, at an angle from a vertical line-to disengage it from thejaws a. The spring D yields to permit of this. The free end of the chain or tackle, while held in this relation to the jaws a, is drawn down or allowed to rise, so as to elevate or lower the article suspended. When the latter arrives at the desired elevation the free end of the chain or tackle is returned to a vertical position, either by moving it there or letting it drop there, and thereupon it engages with the jaws a, so as to retain the article suspended in position.

What I claim as myinvention, and desire to secure by Letters Patent, isj The combination of. a pulley, a block in which the same is supported, a chain or tackle passing over the pulley-jaws extending from the block, for grasping between them the free end of the chain or tackle, and a spring for forcing the free end of the chain or tackle between said jaws, substantially as specified.

CHARLES MASOHMEYER.

Witnesses:

DAVID B. LOGKWOOD, LYDIA E. LOGKWOOD.

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