US724009A - Spring-motor. - Google Patents

Description

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APPLICATION FILED JUNE 29, 1901.

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`NITET) STATES PATENT FFICE;

CHARLES HERBERT HOYT, OF NEW YORK, N. Y.

SPRING-MOTOR.

SPECIFICATION forming part of lLetters Patent N o. 724,009, dated March 31, 1903. l Application filed June 29,1901. Serial No. 66.504. (No model.)

To all whom, it may con/cern.-

Be it known that LCHARLES HERBERT Hov'r, a citizen of the United States, residing in the borough of Manhattan, in the city and State of New York, have invented a certain new and useful Improvement in Spring-Motors, of which the following is a specification.

My improvement is more especially applicable to that class of fans which serve by means of a screw actuated by a springwound up at intervals and employed to maintain a gentle current of air in the required general direction for a long period by the unwinding of the spring acting through multiplying clock mechanism. I will describe it-as thus applied. `I have devised a specially useful mode of combining several separately-supported sleeves each in its own independent bearings and carrying springs, one on each sleeve, adapted to be brought into action singly or two or more at once at will, as will be set forth fully below, and pointed out in the claims.

The entire machine may be instantly applied in a variety of positions for domestic, office, and general personal use. It is eminently adapted for use in sickness in warm weather.

The following is a description of what IV consider the best means of carrying out the invention. I Y Y The accompanying drawingsform a part of this specification.l

Figure l is a rear elevation, partlyin vertical section; 'and Fig. 2 is a side elevation, partly in vertical section.

Similar characters of reference indicate corresponding parts in both figures wherel they appear. Y

A is an upright rod of ironor steel, having a horizontal arm A screw-threaded, as shown. The rod is received and held adjustably in a stand,t(not shown,) which latter may be in all respects like the corresponding parts-of stands for'supporting sheets of music 'for bands.

Ais a jam-nut applied on the screw-threads. B is the casing of my machine, provided with base-pieces B, by whichit may rest on a table when the stand is not being utilized, and also with an intermediate base-bar B2,

formed with a way B3 of dovetail cross-section,

adapted to receive a separately-formed screw- "i l threaded socket M, which has a corresponding dovetail recess and is tapped to engage with the aforesaid screw-threaded arm A.

This socket is capable of being easily attached a and detached by sliding end wise onthe dovetail Ways B3.. The socket can be applied on the screw-threaded arm by revolving it, and when the screw-threads are thus Well engaged it is strongly attached tothe casing B by` y tightly, after which the socket and casing to-V gether may be set so as to present the casing B upright or inclined at any desired angle, and by turning thevjam-nut A2 to induce pressure against the socket-piece the machine is firmly held at the required angle. This permits it to send the gentle currentof air either level or inclined downward or upward upon a table or sick-bed.

I employ an upright shaft G with bevel-gear at each end through which to communicate motion from bevel-gear H in clock mechanism H in the casing B to a small bevel gearwheel D3 on the shaft D of a screw-fan. The series of springs for impelling the multiplying or clock mechanism H and the several separately-supported sleeves, one for each spring, and the provisions for using the several sleeves in winding the springs and disconnecting when not required constitu te the main subject of the invention.

I make the mechanism run a long time by means of several springs, each attached to a metallic sleeve, each of which, with a spring attached, carries a large. wheel and is adjusted on the main shaft l to run freely thereon. A ratchet-wheel 2, one for each sleeve, is firmly keyedor otherwise fixed tothe shaft 1 and engaged with a pawl 3, attached to the adjacent sleeve 4, and a separate frictionbrake 5, working on the sufficiently large friction-Wheel constituting a part of each sleeve, withholds the power of each spring at will. When any spring 7 is thus conditioned, the shaft l turns without its aid. On releasing any brake 5 the dynamic power of the corresponding spring 7 is at once communicated through the pawl 3 and ratchet 2, and thus to the main shaft l, and contributes its This Way is formed IOO force to turn the shaft and drive the clock mechanism II. By this combination thus arranged each spring exerts its power inde pendently, yet is applied and taken off at will. The power of two or more or of all can be applied at the same time to impel the main shaft by simply taking off two or more brakes 5 at once. The several springs 7 are inde pendently wound by releasing each brake and turning it by means of worm-gears, one worm 8 connected at will with each wheel 4. Each worm may be held in gear or dropped out of gear, so as to be idle, by turning a piece 9. The projecting end of each wormshaft S is squared and receives in its turn a proper winding-key, which may be a crank. (See Fig. l.) Such is easily transferred from one worm-shaft to another, as required in winding operations. The partitions BS serve as independent bearings for the several sleeves 4, which greatly relieve the constantlyrunning shaft l from the lateral pressure in different directions, to which it would be otherwise subjected.

I attach importance to the brake as means for holding the several springs out of use for the reason, among others, that they can be applied at any time. Itis often desirable to vary the forceof the blowing or other work, and my brakes allow an additional spring to be applied or when several are working to have one or more arrested and allow the remainder to continue with little trouble and without stopping the machine. The brakes also allow the force to be varied by gentle changes.

Modifications may be made by any good mechanic wit-hout departing from the principle or sacrificing the advantages of the invention. The width and the angularity of the position of the several screw-blades R S T may be varied with the effect, among others, to retard or accelerate the uncoiling of the several springs. I have shown an eiicient Wlndi'ngkey W,adapted to be operated by one hand applied on the squared end of a worin-shaft 8 for Winding up one spring. All these parts can be varied. I have in my experiments used multiplying gear analogous to clock mechanism mounted in a stoutly-braced metal framing,r in the casing B. I have used springs 7, each corresponding t0 a clock-spring, but larger than those used in ordinary clocks.

Instead of the worms 8 for eecting the winding of the several springs that operation may be effected by spur-gear in the obvious manner.

I claim as my inventionl. A motor comprising a series of springs supported continuously and fairly in fixed bearings,a brake BS for each spring for liberating and arresting at will, and a pawl for holding each spring idle when desired, anda pawl for connecting each spring to the main shaft as required, combined and arranged forjoint operation substantially as herein specified.

2. A motor composed of a series of springs mounted on separate sleeves capable of turning separately and supported independently in fixed bearings, means for holding each spring idle when desired, and a pawl for connecting each spring to the main shaft as required, and winding means S, one for each sleeve, and the movable pieces 9 for throwing the winding means into and out of engagement at will, all combined and arranged for joint operation substantially as herein speciiied.

In testimony that I claim the invention above set forth I affix my signature in presence of two witnesses.

CHARLES HERBERT I-IOYT.

Tituessesz J. B. CLAUTICE, M. F. BoYLE.

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