Untitled record

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EUGENE GALLAGHER, OF BROOKLYN, NEW YORK.

Letters Patent No. 74,337, dated February 11, 1868.

IMPROVEMENT IN DEVICE FOB TRANSMITTING MOTION.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, Eugene Gallagher, of Brooklyn, in the county of Kings, and State of New York, have invented a new and improved Device for Transmitting Motion; and I do hereby declare that the foliowin is a full, clear, and exact description of the same, reference being had to the accompanying drawings, makin a portion of this specification, in which— °

Figure 1 is a vertical longitudinal section of a device constructed according to my invention.

Figure 2 is an end view of the same.

-Figure 3 is a detached horizontal section of the same, taken in the line x x of fig. 3.

Figure 4 is a detached transverse section of a portion of the same.

Similar letters oi reference indicate corresponding parts in all the figures.

This invention consists in the combination of a screw with a wheel provided with radial friction-rollers, whereby the rotation of the screw is caused to revolve the shaft of such wheel, situated transverselv to and at one side of the aforesaid screw. . ”, go enable others to understand the construction and operation of my invention, I will proceed to describe it with reference to the drawings.

^.represents a screw or spiral shaft, the two ends of which are formed with journals working in appropriate bearings, a, provided upon a suitable supporting framework·, B, situated in a position transverse to that of the screw A, and either above or below the same is a shaft, C, upon which is secured a wheel, D, between the central portion or boss, b, and rim, c, of which are placed any number of radial pivots or shafts, d, upon each of which is placed a friction-roller, E*. This wheel Dis placed in such relation with the screw A, that the frictionrollers, at o,ne side thereof, fit into one of the spiral grooves or channels of the screw, so that when rotary motion is communicated to tne screw, it will act successively upon the aforesaid friction-rollers, and communicate a rotary movement to the wheel D, and, of course, to the shaft thereof. If desired, two wheels, D, situated one upon each side of the screw A, formed upon a single boss, b, and gearing, as it were, into the two grooves or channels of the aforesaid screw, as shown more fully in figs. 2 and 3, may be employed, instead of a single wheel, as hereinbefore described, and the screw, instead of being placed in a horizontal position, as represented in tlw drawings, may be placed in a vertical or an inclined position, as circumstances may require.