US292828A

US292828A - Mechanical movement

Info

Publication number: US292828A
Authority: US
Publication date: 1884-02-05
Anticipated expiration: 1901-02-05

Description

(No Model.) is Sheets-Sheet '1. M. J.'LAWLOR.

MECHANICAL MOVEMENT.

Patented Feb. 5,1884.

In?) 87 ww a. mans mmum m m Wishinglan. an

9m 4 0 .9 e h s w e e h S 3 B v O m A L J M n d Av M 0 w I MEGHANIUAL MOVEMENT. No. 292.828.

' W ZjJ/e y Nv PETERS. Pliulmhlhugmplllrr. vimm u. c.

:' UNITED Sia'ilins.

PATENT @Frica rncnanr. J. LAWLOR, or roueiinnnrsm, NEW YORK.

MECHANICAL MOVEMENT.

SIPECIFICATION forming part of Letters. Patent No. 292,828; dated February 5, 1684.

A Application filed November 16, 1883. (No model.) i

- To all whom it may concern:

Be it known that I, MIcHAEL J. LAWLOR a citizen of the United States, residing" at Poughkeepsie, in the county of Dutchess and State of New York, have invented a new and useful Improvement in'Automatic Brake and Clutch Mechanism, of which the following is a specification.

My invention relates to improvements in mechanical movements; and it consists of a simple mechanism which is adapted to hold automatically a shaft, drum, pulley, or wheel, or theirequivalent, from revolving in either direction, and is adapted to all machines which now use pawlan,d-ratchet or other equivalent device for holding the same parts, as described, and furnishing a simpler device to attain the object ordinarily attained by pawl and ratchet, retaining the part from revolving in either direction. v By my invention machinessuch as lifts, hoists, elevators, and all other lifting, hauling, and winding machinerywhich require pawl-and-ratchet devices are simplified, and machines produced by which the load is automatically suspended at any height and readily lowered to any point by giving motionto the I winding-shaft in a direction contrary to that by which the raising is effected, the load being automatically suspended at any point by ceasing to give motion to the driving-shaft. I'will describe my invention in relation to a lift. On the rotary shaftof a lift'I place a stationary frame, tube, orsleeve, passed over said shaft and occupying any positionon the samethat convenience of construction may require. The shaft is capable of rotating freely in said stationary frame, tube, or sleeve. The said frame, tube, or sleeve is of such length as to allow the part-s hereinafter de-' scribed to be placed in said framefor on said.

tube or sleeve. On each side' of these parts is placed a .hub, shoulder, head, flange, or other'equivalent device, firmly fixed to-the said stationary frame, tube. or sleeve for the purpose of limiting the space occupied by said parts and preventing the spreading of these parts beyond the limited space when out of gear; These limiting hubs-may be partsof the said stationary frame, tube, or sleeve, or

parts fi xed thereto.

Inor on the said stationaryfraineftube, or

its sides presenting inclined surfaces, two rings or annulars, or their equivalents, one on either side of said pinion-wheel, having their outer ends perpendicular to the bearing on which sleeve are loosely placed a pinion-wheel with r they revolve, and their inner sides or ends presenting surfaces inclined correspondingly to those upon the pinion-wheel, and intermediately between the said pinion-wheel and annulars are placed rings having parallel sides and-of any required thickness. never revolve with the shaft, pinion-wheel, or annulars, but are retained from revolving by being fastened in such a manner tothe stationary frame, tube, or sleeve by socket-studs, bolts, or their equivalents that they have a wabbling motion to and fro on the said frame, tube, or sleeve, andthe said studs, bolts,,or their equivalents with corresponding slots retain them from revolving with the shaft, pinionwheel, or annulars, as described. The office of said rings is to lock the pinion-wheel to the stationary frame, tube, or sleeve, which they dowhenever motion ceases to be given to the driving-shaft. The pinion-wheels and annulars' are furnished with slots, or'their equivalents, varying inlength according to the inclination of the surfaces that clasp the said rings, and the ends of the slots are directly opposite each other when the parts are in gear. The shaftcarries a dog, stud, or studs, or their equivalent, of suitable size and form, to engagewith the sides of said slots in the described pinion-wheel and annulars, (and is the only part fixed to the shaft,) for' the purpose of gearing the said pinion-wheel and annulars and thereby permitting the load to be raised or lowered. It will be seen that whenever the motion of said shaft and its dog cease to hold the pinion-wheel and annulars in gear, the resistance of the load upon the pinionwheel will' cause itto revolve independently of the said annulars in the direction proper to lower'the load, and said annulars remain at rest, and thereby form inclined foundations or bases'for theretained'rings to lie in angular positions and thereby form a non-revolving inclined base or foundation for the pinion-wheel to wedge betweenon against,

The said rings and the raised load-is held in whatever position it'lias been brought to.

the load is at rest, the described pinion-wheel, which gives motion to the1oad,is firmly wedged between the retained wabbling rings, and by the turning of the shaft in the direction proper to raise the load, the described dog, or its equivalent, engages with the said pinion-wheel and annulars, and the parts are geared together and do not grip between them the retained rings, and said rings wabble freely and adapt themselves in angular position to correspond with the inclined surfaces on the described pinion-wheel and annulars. In lowering the load the shaft is revolved in the opposite direction, and this motion brings the annulars and pinion-wheel in gear, so that they do not grip the retained wabbling rings; but said rings freely adapt themselves to the inclined surfaces, as described, the descent of the load continuing only so long as the backward motion of the shaft is continued.

Instead of the pinion-wheel having on each side an inclined surface and two annular-s and two retained wabbling rings, as described, the said pinion-wheel mayhave only one side with an inclined surface, and one annular and one wabbling ring, as described, and the other side of said pinion-wheel be made perpendicular to the bearing on which it revolves.

To operate the shaft by other than handpower, the gearing of the said shaft with said p ower may be effected by pinionsvheels, baudpulleys, or other connecting devices.

The application of my invention to other machinessuch as elevators, dumb-waiters, crabs, hoisting, hauling, and winding machinery-differs in no essential particular from the foregoing description of a lift.

I will now proceed to describe my invention with reference to the accompanying drawings, which form part of this specification.

Like letters indicate like parts, in which- Figure 1 represents a side elevation of my invention, and Fig. 2 shows an end elevation of Fig. 1. Fig. 3 shows a longitudinal section of Fig. 1. Fig. 4 is a cross-section of Fig. 3 at the line a m. Fig. 5 is a longitudinal section of my mechanism. Fig. (3 is an end view of the stationary frame, tube, or sleeve. Fig. 7 shows my machine with the operative parts all on one side of the wheel, as described. Fig. 8 shows an end elevation of Fig. 7, stripped of the driving -wheel and its bearing. Fig. 9 shows a side elevation of a pinion-wheel incased in a stationary frame, as described. Fig. 10 is an end elevation of Fig. 9. Fig. 11 is a longitudinal section of Fig. 9. Fig. 12 is a cross-section at the line 00 as, Fig. 11. Fig. 13 is a side elevation of my invention as incased in a stationary frame, as described. Fig. 14 is an end elevation of Fig. 13. Fig. 15 is a longitudinal section of Fig. 13. Fig. 16 is a cross-section at the line a: a: in Fig. 15. Fig. 17 shows a drum incased in a stationary frame, as described. Fig. 18 shows a cross-section of Fig. 17 at the line 00 :0. Fig. 19 shows a drum as placed on a stationary sleeve, as described.

Fig. 20 shows an end elevation of Fig. 19.

In the drawings, A shows the driving-shaft; A, the driving-wheel.

B shows the engaging dog, stud or studs.

0 and E showone of the heads limiting the spread of the gearing, as hereinbefore described.

F shows the stationary frame and tube or sleeve.

shows the other limiting-head oppositcC and E, as described.

G shows the described annulars.

G shows the bolts connecting the annulars byheads or nuts, so as to hold the geared parts in position without the intervention of the heads F and O E, and prevent friction against the said heads, which may or may not be used.

H shows the described pinion-wheel,pulley, or drum.

I shows the described wabbling ring or rings.

I shows the studs or bolts, which are parts of the stationary frame, tube, or sleeve, which, working in sockets in the wabbling rings, retain the rings from revolving.

J shows the slots in the annulars and in the pinion-wheel.

C shows set-screws or bolts, which may be used to set the head E to the stationary frame, tube, or sleeve F, for the purpose described.

On the rotary shaftAis placed,as described, a stationary frame, tube, or sleeve, F, in or on which the pinion-wheel, pulley, or drum H, or their equivalents, annulars G G, and rings I I, are placed, as described.

On each side of the abovedescribed parts, on said frame, tube, or sleeve, are placed shoulders or heads, which may be parts ofsaid frame, tube, or sleeve, or parts fixed thereto, and are indicated in the several drawings by the letters F, F, E, and G. The ofiice of these heads or shoulders is to limit the lateral space occupied by the said pinion-wheel, annulars, and rings when in and out of gear. The said annulars G G are connected by two rods on either side, as shown at G G, Figs. 1, 3, and 4., which, with heads or nuts on each end, also limit the spreading of the annulars and hold them in uniform position as to each other. These connecting-rods G G may be omitted as simplicity of construction and convenience may reqnire. There is also placed firmly upon the driving-shaft the dog or studs B B, which turn with the shaft, and by passing through the slots J J they hold the annulars and pinionwheel in the position which allows the retained wabbling rings I I to escape being gripped, and to move freely without binding on their adjacent parts, and the moment said (log or stud disengages the said annulars and pinionwheel the resistance on the pinion wheel causes it to turn backward independently of the said annulars, and the pinion-wheel locks itself by the action of the wabbling rings to the stationary frame, tube, or sleeve, as heretofore described.

To start the pinion-wheel, motion in either direction given to the shaft, communicated IIO - through the dog or studs B B, brings theparts balls, or their equivalents, ordinarily called \Vhen the driving-shaft A is turned in the dir'ection proper to raise the load,'the dog or studs B B,'which are fixed to the said shaft, engages with the sides of the described slots J J in the pinion-wheel H and annulars G G,

and gear the parts together, and thereby permit the described annulars G G and the pinion-wheel H to revolve freely, their inclined surfaces adapting themselves to. and causing the retained rings I I to wabble to and fro in the uniform space left for them between said surfaces without being gripped, and the said non-revolving rings wabble freely in their path only so long as the driving-shaft gives motion to the load, and when said driving-shaft A ceases to give motion to theload and hold the said parts in gear, the said rings, impinged by the inclined surface of the-pinion-wheel,

automatically lock the pinion-wheel to the sta-' tionary frame, as described, and the load is sustained in whatever position it has attained.

. In order to lower the load, the shaft is turned in the opposite direction, and its dog or studs B B engage the opposite sides of the slots J J in the pinion-wheel and annulars, and brings the parts in gear, and the motion of the parts is the same'as above described, only in the reverse direction, and continues only so long as the shaft is so revolved, and thus the load may be lowered and automatically sustained at any desired point.

Having thus described my invention, its construction, application, and use, what I claim, and desire to obtain LettersPatent for, is

1. The mechanical movement, as described, comprising an automatic brake to hold the pinion-wheel, pulley, or drum, or an equivalent part, which give motion to the load on any lift, hoist, elevator, dumb-waiter, and all other lifting, hauling, and winding machinery at rest, whenever motion ceases to be'communicated to the driving-shaft, and only then, substantially as described.

2. The described mechanical movement, consisting of the driving-shaft A, carrying a fixed dog or stud, B B, or their equivalents, station ary frame, tube, or sleeve F, a pinion-wheel, pulley, or drum, H, the annulars G G, and the intermediate rings,.I I, and the connectingrods G G, substantially as described.

3. The described mechanical movement, consisting of the driving-shaftA, carrying afiXed dog or stud, BB, or their'equivalents, station aryframe, tube, or sleeve F, a pinion-wheel, pulley, or drum, H, the annulars G G, and intermediate rings, I I, substantially as described.

4.. The described mechanical movement, consisting of the driving-shaft A, carrying the dog or stud B B, or their equivalents, stationary frame, tube, or sleeve F, pinion-wheel, pulley, or drum H, the annular G, and wabbling ring I, substantially as described.

5. The retained non revolving wabbling ring I, fixed to the stationary frame, tube, or sleeve by socket and stud resting between revolving surfaces inclined to the axis of motion of the shaft, substantially as shown and described.

6. The two retained non-revolving wabbling rings I I, fixed, as described, to the frame, tube, or sleeve by socket and stud resting between two revolving surfaces inclined to the axis. of motion of the shaft, substantially as shown and described.

7. The loosely-mounted pinion-wheel, pulley, or drum, constructed with beveled side or sides, as described, so arranged as to clutch the non-revolving rings whenever said pinionwheel, pulley, or drum revolves independently of the annulars G G,

8. The loosely-mounted annular G or annulars G G, provided with slots J J, correspond- 7 ing with the slots J J in the pinion-wheel, pulley, or drumH, the said parts made as shown and described, and for the purposes set forth.

9. The combination of the shaft A and its dog ,or stud B B with the stationary frame, tube, or sleeve F, pinion-wheel, pulley, or drum H, annulars G G, wabbling rings I I, with the heads F, E, and O, substantially as shown and described, and for the purposes set forth.

10. The combination of the dog or studs B 'B on the driving-shaftAwith the sides of the slots J J in the pinion-wheel, pulley, or drum H, and the annular G or annulars G G, as described and shown, and for the purpose set forth. I 7

11. The combination of the loosely-mounted pinion-wheel, pulley, or drum H with the annular G or annulars G G and the non-revolving wabbling ring or rings I I, substantially as shown and described, and for the purposes set forth. 7

12. The combination of the wabbling ring I or rings I I with the stationary frame, tube,

or sleeve F by the studs or bolts 1 and sockets, as shown and described, and for the purposes set forth.

13. The described non-revolving wabbling ring I or rings I I, for the purpose of looking the pinion-wheel, pulley, or drum H to the stationary frame, tube, or sleeve F, to which the wabbling ring I or rings I I are fixed, as shown and described, and for the purposes set forth.

14. An automatic brake or clutch ineehanism for lifts, hoists, elevators, and all other 1ifting,'hauling, and winding machinery operated by the resistance of the load upon the pinion-wheel, pulley, or drum, and liberated