US 631711 A
Description (OCR text may contain errors)
N0. 63I,7ll. Patented Aug. 22, 1899. E. L. .GARVEY.
(Application filed Mar. 17, 1599. (No Model.) 2 Sheets-Sheet I.
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Patented Aug. 22, I899.
E. L. GABVEY.-
(Applicatinx; filed Max. 17, 1899.)
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UNITED STATES PATENT OF ICE.
EDGAR LEE GARVEY, O F GAINESVILLE, TEXAS.
SPECIFICATION forming part of Letters Patent No. 631,711, dated August 22, 1899.
Application filed March 17, 1899- T0 (4% whom, it may concern.-
Be it known that I, EDGAR LEE GARVEY, of Gainesville, in the county of Cooke and State of Texas, have invented a new and useful Improvement in Motors, of which the following is a specification.
My invention relates to that class of motors in which the energy is stored up by the compression of a spring; and it.has for its object certain improvements in such motors whereby the energy will be conserved in a very efficient manner and whereby the speed of the fan or like article driven by the motor maybe easily changed. 7 i
The invention consists in certain arrangement and construction of parts, which I shall first describe and then point out the novel features in the appended claims.
Reference is to be had to the accompanying drawings, forming part of this specification, in which similar characters of reference indicate corresponding parts in all the views.
Figure 1 is a side elevation of my improved motor with fan-blades attached. Fig. 2 is a front view of the same with the face-plate removed, illustrating the train of gearing. Fig. 3 is a rear view of the same with the rear plate removed. Fig. 4 is a horizontal sectional elevation on the line 4 4 of Fig. 5. Fig. 5 is a detail View illustrating the device attached to a sewing-machine. Fig. 6 is a View similar to Fig. 4, but on a much larger scale. Fig. 7 is a detail view illustrating the plate or and its pawl, and Fig. 8 is a detail view of the end of the shaft H and its pinion with parts in section.
The main working parts of my improved spring-motor are preferably inclosed in a casing A. In describing such parts I'shall commence with the spring from whose compression the energy is derived and then in turn fully describe the specific features of each succeeding or adjacent part serving as the Vehicles of the energy.
The casing Ais formed with a middle partition a, on whose rear face is held a plate at, having a spring a pivoted thereon, one end of said spring being formed with a pawl a for a purpose to be hereinafter described. A drum B, inclosing the spring 0, is mounted to revolve in the casing by having one end of its shaft journaled in the plate ct, and the drum is also mounted to rotate on the shaft.
Serial No. 709,445. on) man.)
The spring C has one end secured to the said shaft and is coiled therearound and has its outer end fastened to a cross-pin connecting the two sides of the drum. A ratchet-wheel D is fixedly held on the shaft and is engaged when the drum is in place by the pawl a so that the shaft can be turned in but one direction. Hence it will be seen that in order to store up energy within the drum B the shaft thereof is turned to compress the spring and when released will be caught by the pawl a thereby permitting the drum to rotate 011 its shaft until the spring has arrived at-its normal tension.
Rigidly secured to the hub of the drum B, immediately behind the ratchet-wheel D, is a gear-wheel b, meshing with a pinion e, fixed on one end of a rotatable shaft E, journaled in the partition a and mounted on ball-bearings .6. On the other end of said shaft, at the opposite side of the partition, is rigidly held the large gear-wheel 6 With this latter gear- Wheel is meshed a pinion f, secured on the barrel-hub F, mounted to turn on ball-bearings 011 a stationary axle or shaft f, held at one end in the partitionand at the other end in the removable face-plate a, formed with an annular flange by which it is held on the casing. A large gear-wheel f overlapping the gear-wheel e in a parallel plane, is also secured on the hub F, adjacent the pinion f, and this gear-wheel f is meshed with a pinion g, fixed on the hub G, which is similarly mounted on ball-bearings on the stationary axle g and provided with a similar large gear-Wheel g overlapping in a parallel plane the gear-Wheel f The train of gearing described above communicates motion to a fan or similar article in the following manner: A barrel-hub H is secured upon or formed integrally with the face-plate a and a shaft his mounted to turn on ball-bearings in said hub, the outer end of the shaft having oppositely-disposed socketpieces h for the reception of fanblades 72. as shown in Fig. 1, and the extreme outer end of the shaft is recessed to receive a pulley for the reception of a belt when it is desired to use the motor for other purposes than operating a fan. The inner end of the shaft is splined to receive a feather on a slidable pinion 7L3, which is held at different positions evident that the gear-Wheel travels faster than the wheel f and that this latter in turn travels faster than the gear-wheel e Hence 1 in order to vary the speed of the shaft h the pinion 71 .is moved along the said shaft until it meshes with any oneof the aforesaid gearwheels according to the speed desired, when it is fastened in place by the set-screw h To wind the spring, 1 mount a gear-wheel J on the shaft of the drum B, as shown, meshing with a pinion K on the shaft in, mounted on the bracket 7; and held from return movement by a pawl and ratchet 70 A spring-held locking-rod L is fitted in a sleevel on the hub H, whose bent end Z, forming a finger-hold, is brought out to engagement with one of the socketpieces it whenever it is desired to stop the motor before it has run down.
It will be seen that I have provided a very simple spring-motor capable of being easily adjusted to vary its speed and not liable to get out of order.
Fig. 5 illustrates a modified form of my motor, in which the interior parts are the same j as in the form described above.
In this modiacting on the shaft to regulate the speed.
ing,I provide a suitable hanger X, attached to the casing.
Having thus described myinvention, what I claim as new, and desire to secure by Letters Patent, is-
1. In a motor a rotatable spring-carrying and spring-actuated drum, a train of gearwheels operatively connected with said drum, a shaft arranged to be rotated by said gearwheels, a pinion splined on said shaft, and adapted to slide thereon whereby to engage different gear-wheels, and a set-screw work ing in said pinion whereby to hold said pinion in proper position on the shaft as set forth.
2. A motor, comprising a casing, provided with a partition, a shaft mounted to turn on said partition, and having a ratchet-wheel secured thereon, a pawl on said partition engaging said ratehet-Wheel, a spring-carrying drum mounted to rotate on said shaft, and
provided with a fixedly-held gear-wheel, a
train of gearing mounted in said partition and connected with said 'gear-wheehaud a second shaft mounted in the casing and formed with a slidable pinion arranged for meshing with the said train of gearing, as and for the purpose set forth.
3. In a motor for the purpose described, the casing provided with the removable fan-plate provided with a hub, a shaft mounted to rotate in said hub and formed with socketpieces for the reception of fan-blades, and a spring-held locking-rod held on said hub and adapted to be brought into engagement with a socket-piece whereby to stop the rotation of the shaft as set forth.
4. The herein-described spring-motor, comprising the casing, the spring-carrying drum therein, the shaft mounted in said casing and loosely supporting said drum the said shaft having a ratchet-wheel secured thereon, the middle partition in said casing, the plate secured thereon and provided with a pawl engaging the said ratchet-wheel, the stationary axles on which are mounted ball-bearing hubs provided with gear-wheels operatively connected with said drum, the shaft h mounted j in said casing and having a pinion splined In order to suspend the motor from the ceilthereon, the said pinion being arranged for engagement with different gear-wheels, and
2 a set-screw working in said pinion whereby to hold it in proper position on its shaft, asv
and for the purpose set forth.
EDGAR LEE GARVEY.
BENJ. E. W. RULER, E. ROBESON.