US1067185A - Power-transmission mechanism. - Google Patents

Description

L. MAIER. POWER TRANSMISSION MECHANISM.

APPLICATION FILED AUG. 8, 1911.

1,067,185, Patented July 8, 1913;

V A 27 Z 20 I I 40 I ATTORNEYS UNITED STATES PAETEN T OFFICE.

LEOPOLD MAIER, OF LOS ANGELES, CALIFORNIA.

POWER-TRANSMISSION MECHANISM.

To all whom it may concern:

Be it known that I, LnoroLD MAIER, a citi- Zen of the United States, and aresident of Los Angeles, in the county of Los Angeles and State of California, have invented a new and Improved Power-Transmission Mechanism, of which the following is a full, clear, and exact description.

This invention relates to driving mecha nism, and has reference more particularly to mechanism of this kind constituting a oneway clutch, and comprising a drum, a ratchet associated therewith and means whereby the drum and the ratchet are operatively connected when moved in one direction and are inoperative with respect to each other when moving in another direction.

The object of the invention is to provide simple and efficient driving mechanism which can be used for a variety of purposes, for example in transforming intermittent reciprocatory movement into continuous rotary movement, which comprises comparatively few parts, which can be easily assembled and taken apart, in which the ratchet serves to hold the drum against axial movement, and which can be economically produced.

The invention consists in the construction and combination of parts to be more fully described hereinafter and particularly pointed out in the claims.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views, and in which-- Figure 1 is a fragmentary elevation showing a shaft having two embodiments of my invention mounted thereon, one of the devices being shown in cross section. Fig. 2 is a transverse section on the line 22 of Fig. l; and Fig. 3 is a diagrammatic perspective view showing power transmission mechanism in which my driving mechanism is incorporated, to illustrate one of the uses of which my invention is capable.

Before proceeding to a more detailed explanation of my invention, it should be clearly understood that while the mechanism is particularly useful in connection with apparatus for utilizing the power of waves or other water movements, it can also be advantageously employed for other purposes in which it is desirable or necessary to trans- Specification of Letters Patent.

Application filed August 8, 1911.

Patented July 8, 1913.

Serial No. 642,978.

form a reciprocatory into a rotary movement.

Certain of the details of construction, shown for example herewith, form no part of the invention, and can be varied in ac cordance with individual preference or special conditions, without deviating from the essence of the invention as defined in the appended claims.

Referring more particularly to the drawings, I employ a shaft 10 of suitable dimensions, which constitutes the driven member and serves for the utilization of the power applied thereto and developed, for example, from water wave movements. Loosely mounted upon the shaft is a pair of double drums 11, each comprising a smaller section 12 and a larger section 13. The diameters of these sections differ materially. The drum sections 12, at the extremities have radially disposed flanges let and 15 which facilitate the winding of a flexible member thereon. The drum sections 13, at the edges adjacent to the other sections, 12, likewise have peripheral flanges 16. The drum sections are hollow, as is clearly shown in the cross sec tion of Fig. 1. I employ a head or face plate 1? having a central hub 18 through which the shaft 10 passes, and provided with an offset peripheral flange 19. Each is screwed into a drum section 13 and engages at the edge thereof remote from the flange 16, so that its flange 19 corresponds to the flange 16 and serves with the latter, to facilitate the winding of a flexible memberupon the drum section 13. The drum sections 12 have webs 20 and 21 therein, provided with openings through which the shaft passes, and which serve, with the hub 18, to mount the drums loosely upon the shafts.

Keyed or otherwise firmly secured upon the shaft at suitable points thereof, are ratchets 22. The keys 23 of the ratchets are securely held in position by means of setscrew 2st. The ratchets have radially ex tended flanges 25 at the sides of the teeth, and are axially extended to form hubs 26. The ratchets are received within the hollow drum sections 13, which are provided interiorly with recesses 27 and 28 receiving respectively the hubs of the ratchets. The flanges 25 extend beyond the recesses and engage at the inner sides of the hollow drum sections. In this way, the drums are held against movement longitudinally of the shaft, though they are free to revolve thereon.

lVithin each of the drum sections 13, I provide a plurality of pawls or dogs 29, preferably four in number, and each adapt ed to engage a ratchet. The dogs are pivotally mounted in osition by means of bolts 30 which extend tirough the head 17 and the opposite side of the drum section 13, and thus also secure these parts together. The dogs have hubs 31, and at the free ends are received between the flanges 25. Within each drum section 13 is an annular member 39. fitted against the inside thereof and having inwardly integral disposed spring tongues 33, each of which engages one of the dogs and tends to hold the same in operative relation with the ratchet.

In the diagrammatic view shown in Fig. 3 I have illustrated the mode of application of my power transmission mechanism to a wave motor or like apparatus. To the float 34-. of the wave motor are secured two flexible members or cables 35 and 36. The former is secured at the top of the float, the latter to the under side of the same, passing about a pulley 37 and upwardly through an opening 38 in the float, around a second pulley 39 to one of the drum sections 12, about which it is partly wound and secured. The cable may be secured to the drum section in any suitable manner, for example, by means ofa peg or stud located in an inclined opening 40 at the flange 14 of the section. A second flexible member a1 is secured to, and partly wound about the cor responding drum section 18, passing over a pulley 42, and having attached at the end thereof a counterpoise 43. The cables are so arranged that the weights of the float and the counterpoise tend to turn the drum in opposite directions. The cable 35 is partly wound about and secured to the drum section 12 of the other drum. A further flexible member 44 is secured to and partly wound about the corresponding drum section 13, passes about a pulley 45, and has attached thereto a counterpoise 46, the arrangement being similar to that of the other drum.

It will be understood that owing to the disposition of the cables 35 and 36 one of these is placed under tension when the float moves upward and the other is correspondingly placed under tension when the float moves downward. In each instance, the movement of the float is transmitted to the shaft, through the drum, the dogs and the ratchet, to revolve the shaft in a. predetermined direction, so that the drums are alternately operative to revolve the shaft continuously. Furthermore, during the inoperative period of each drum its counterpoise winds it in an opposite direction, the dogs moving inoperatively about the teeth of the ratchet in that case, to allow for the reverse movem-ent of the float to permit the flexible member connecting the drum and the float to be wound up during this inoperative period, so that at the next reverse movement of the float the drum can again be actuated, thereby to revolve the shaft. In this way the intermittent, reciprocatory movement of the float due to both or either action is transformed into a continuous, rotary movement of the shaft 10, the power developed at which can then be utilized in any suitable manner.

Iaving thus described my invent-ion, I claim as new, and desire to secure by Letters Patent:

1. Driving mechanism comprising a shaft, a hollow drum loose upon said shaft, a ratchet secured to said shaft within said drum, a dog pivotally mounted within said drum adapted to engage said ratchet, and an annular member against the inside thereof within said drum and having an integral spring tongue engaging said dog and tending to maintain the same in operative relation with said ratchet.

Driving mechanism comprising a shaft, a hollow drum loose upon said shaft, a ratchet secured to said shaft within said drum, a plurality of dogs pivotally secured within said drum adapted to engage said ratchet, and an annular member located within said drum and having a plurality of integral, inwardly disposed spring tongues each adapted to engage one of said dogs and maintain the same in an operative relation with said ratchet.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LEOPOLD MAIER;

lVitnesses:

JOHN KELLEY, JAMES MGMAI-ION.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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