US478774A - wheat - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

B. o.' WHEAT.v MOTOR.

No. 478,774. Y Patented July 12, 1892.

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(No Model.) 2 Sheets-Sheet 2.

E. C. WHEAT.

MOTOR.

No. 478,774. Patented July 12', 1892.

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UNITEDl Srrrrns PATENT OFFICE.

' EDMOND O. VHEAT, OF GOLMESNEIL, TEXAS, ASSIGNOR OF THREE-EIGHTHS TO JULIOUS A. BEST, OF, SAME PLACE.

MOTOR.

SPECIFICATION forming part of Letters Patent No.` 478,774, dated J' uly 12, 1892;. Y Application filed February 24, 1892. Serial No. 422,659. (No model.)

To all whom, zit may concern:

Be it known that I, EDMOND QWHEAT, a citi-l zen of the United States, residing at- Oolmesneil, in the county of Tyler and State of Texas, have invented a new and useful Motor, of which the following is a specilication.

This invention relates to that class of inotors operated through the medium of weights.

The objects of my invention are to produce a motor of cheap and simple constructionv that may be stopped and started readily, that is automatically governed, that may be operated continuously or without losing time for rewinding or hoisting the weight, and the power of which may be doubled or decreased one-half, as desired, and in accordance with the mechanism to be operated.

Other objects and advantages of the invention will be obvious from the following description, and the novel features thereof will be particularly pointed out in the claims.

Referring to the drawings, Figure 1 is a plan of a motor constructed in accordance with my invention. Fig. 2 is a side elevation of the same. Fig. 3 is an end view. Figs. 4 and 5 are detail Views illustrating the pawl-` and-ratchet mechanism for locking the winding shaft and gear, respectively. Fig. 6 is a detail vertical section showing the construe` tion of the speed-governor for the main shaft. Fig. 7 is a detail section showing the movable and sliding journal-boxes and their cooperating and adjacent parts.

Like numerals of reference indicate like parts in all the figures of the drawings.

In constructing the frame-work for the motorI employ opposite pairs of end posts or standards 1, which extend above the framework proper and the mechanism, and each pair is slightly inclined outwardly and connected at their upper ends by transverse tiebars 2, upon each of which a guide or pulley 3 is mounted for rotation. These standards or posts 1 are connected by upper and lower sills, (designated as 4 and 5, respectively,) said lower sills at their ends being connected by 'transverse shafts 6 and 7, the former being located at one end of the machine and the latter at the opposite end. Journal-boxes 8 are mounted upon the opposite upper sills 4 at the centers thereof, and in said boxes a per sill 4, upon which the frame rests.

transversemain shaft 9 is journaled for rotation. This shaft 9 carries at lits center a gear-wheel 10 and at opposite sides small gears 11 and 12. One end ofthe shaft is ex- 55 tended beyond one of the journal-boxes 8 and has a sleeve 13 rigidly mounted thereon.

VThis sleeve has its outer end provided with inclined teeth, thus constitutingone member of a'v clutch. As shown, adjacent to the 6o sleeve 13 the movable sleeve or clutch member 14 is mounted and adapted to reciprocate, and the same has its inner end provided with inclined teeth disposed contrarilyto those of the sleeve 13. A'brake-lever 15 is pivoted, as 65 at 16, to the upper sill 4, adjacent to the clutch just described, and is securely connected beyond its pivot to the movable member or clutch-sleeve 14, terminating at the end of the machine in a suitable handle `to be 7o grasped by the operator. It will be obvious that when the sleeve 14 is in engagement'with the sleeve 13 rotations of the shaft 9 cannot take place, while by swinging the brake-lever outwardly the clutch becomes disconnected and rotations of the shaft 9 are permitted. lVhether in or out of position, the lever lis supported upon a suitable bracket 17, bolted to the upper and lower sills 4 and 5 at the side of the machine. A beveled gear, serv- 8o ing as a speed-wheel and indicated as 18, is mounted upon the shaft 9 near the clutch. At this point or at one side of the same the shaft 9 is straddled by a governor-frame 19, the legs of the frame being bolted to the up- The governor-frame is provided with a vertical bore 20, and in the same is located a short vertical shaft 21, carrying at its lower end the loose friction-bearing collar 23 and bevel- 9o pinion 22 and at its upper extremity the rig idly-attached screw 272, formed integral therewith and screw-threaded at its upper portion to receive the clamp-nut 27', which bears against the loosely-fittingclamp-blocks 273, which in turn'are designed to be impinged against the interiorly-grooved collar 26', limited in its vertical play by the top of the frame 19 and the clamp-blocks 273 and having a central perforation, through which the screwroo "stem passes.

2O designates a spiral spring interposed between the collars 23 and 242, and is helically Wound around the shaft 21 and bears against the vertically-movable collar 242, which is loosely held in an annular seat in the collar 26 by said spring, the upward tension of which keeps the collars 242 and 26 frictionally in'contact and normally presses them both above the top of the frame 19, as shown in Fig. 6. Thus it will be seen that when the collars 242 and 26 are jammed down by the clamp-nut and clamp-blocks the compression of the spring will increase the friction between the rear face of the pinion 22 and the friction-collar 23.

25 25 are governor-arms, each in the shape of a crank-arm pivoted to collar 26 at 252 and having the front end carrying the spherical weights 25 and the rear portion 24', adapted to bear downwardly on the face or inside of the collar 242, so that when the centrifugal force causes the said weights and arms to extend upwardly the rear ends of the crank-arms will bear down,thus increasing the frictional bearing upon the shaft. The upper sills 4at opposite sides of the shaft 9 are provided with recessed guide or sole plates 28, and upon each guide-plate grooved boxes 29 are mounted for reciprocation.

By reference to Fig. 7 the sole-plates 28 are provided with rectangular depressions or recesses 28 having a longitudinal guiding-rib 282, making a tongue-and-groove joint between the journal-boxes 29 and the soleplates, thusy permitting a sliding longitudinal motion of the said journal-boxes, yet preventing them from lateral or vertical displacement. The front pair of boxes or those at one end have journaled therein a transverse winding-shaft 30, terminating beyond one of the boxes in an operating-crank 31, while the opposite pair of boxes or those at the rear end accommodate a transverse shaft 32, having a crank-handle 33 for operating the same located at that side ofthe frame-work of the machine opposite to that at which the crank 31 is located.

The shafts 30 and 31 are provided at one side of their centers with drums 34 and 35, respectively, which may be either for the accommodation of chains or cables, but in this instance for cables 36 and 37, respectively. Each of these cables is made fast at its inner end to its respective drum or windlass, while its leading end is passed upwardly over and depends from that pulley 3 adjacent thereto. The cable 3G has attached to its leading end a weight 38, while the cable 37 has attached to its leading end a similar Weight 39.

To each pair of slidingboxes 29 is connected the terminals of a U-shaped operating-bail 40, and each bail is provided at its center with an eye 41, through which projects the upper end of a shaft-shifting lever. Two of such levers are employed, one at the front of the machine being designated as 42 and one at the rear being designated as 43, and therefore the former lever operates the shaft 30,

while the latter lever operates the shaft 32. These levers have their lower ends pivoted or fulcrumed upon the transverse. shafts 6 and 7, heretofore mentioned. l The shaft 30 carries a gear 44, which engages with and operates the pinion or small gear 12, and hence the shaft 9. The shaft 32 carries a large gear 45, similar to the gear 44 of the shaft 30, and operates the pinion 11 and shaft 9. It will be seen that communication may be transmitted from both of the gears 44 and 45, and that by reason-of the cables 36 and 37 being reversely wound upon the drums 34 and 35 with relation to each other such unity in the direction of movement of the gears is permissible. Stationary boxes 46 are supported upon the lower sill below the rear boxes 29, and in the same a shaft 47 is mounted for rotation. This shaft carries two gears, the larger one being designated as 48 and the smaller one as 49. The small gear 49 is engaged and operated by the main gear 10 of the shaft 9. In a pair of boxes 50, located below the shaft 9 and upon the lower sills 5, is a shaft 51, which carriesa large gear 52 and a small pinion 53,the latter being engaged with and operated by the large gear 48 of the shaft 47.

Below the shaft 32 a pair of boxes 54 is located, and in the same a shaft 55 is journaled. This shaft between its bearings carries a small pinion 56, and the latteris engaged and operated by the large gear-wheel 52 of the shaft 5l. The shaft 55 at its ends extends beyond the boxes 54, and upon one end of the shaft outside of the frame a fly-wheel 57 is mounted, while at the opposite end a band wheel or pulley 58 is mounted.

From the description of the gears it will be readily understood how motion is imparted from one to the other, and hence a specific description is unnecessary.

The box 29 is provided with a pawl 59, the same being pivoted to the box, and the pawl at its front end is provided with beveled teeth 60, the shoulder of which is designed to-engage with a ratchet-wheel 61, mounted on that shaft which the box accommodates. One box of each shaft 30 and 32 is thus provided and in like manner are said shafts provided with the ratchet-wheels. At the end of the forward movement of the boxes thus provided deflecting blocks or cams 62 are located. By drawing the levers 42 and 43 toward the operator or outwardly from the machine the shafts 30 and 32, together with their boxes, are slid longitudinally upon the track-plates 28, so that the gears 44 and 45 are respectively drawn from engagement with the pinions 12 and 11. When thus Withdrawn, the

pawls 59 prevent a rotation of the shafts 30 and 32 in but one direction. The shafts 30 and 32 are now rotated through the medium of their handles or cranks 31 and 33, respectively, and thus the ropes or cables 36 and 3'7 are reversely wound upon their shafts and the weights elevated to their highest positions. Either one or both of the levers 42 and 43 IOO IIO

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may be swung inwardly or away from the operator, and thus the gears 44 and 45 vthrown into connection with the pinions 12 and 11. As the shafts `30 and 32 move inwardly the inclined shoulders of the pawls 59 are brought in contact with the cam-blocks 62 and are thus raised, so that the pawls 59 are held up out of contact with the ratchets 61, as will be obvious, and thus, so far as this pawland -ratchet mechanism is concerned, the shafts 30 and 32 are free to revolve. A second ratchet 62 is, however, mounted upon each of the shafts 30 and 32 and is secured rigidly thereon at the sides of the gears 44 and 45. Spring-actuated pawls 63 are pivoted to each of the said gears 44 and 45, and at their free ends engage with the ratchetvteeth of the wheel 62", so that the shaft 30 and the shaft 32 may be revolved in one direction without operating the gears 44 and 45, and when moved in the opposite direction said gears will be operated. Thus it will be seen that after the shafts have been rotated to wind the ropes or cables thereon, either one or both of them may be moved into engagement with the gears or pinions of the shaft 9. For ordinary work or power the shifting of one of the gears 44 or 45 into engagement with the pinions 11 or 12 will be sufficient, and thus while one weight is operating the remaining weight may be elevated, so that as soon as the first weight has descended the shaft of the same may be shifted and the shaft of the elevated weight swung into position for operation. When either one or both of the gears 44 or 45 are in operative position with relation to the shaft 9, the machine may be started or stopped by a proper manipulation of the brake-lever 15, as heretofore described. It will be seen that the speed of the motor will be efficiently controlled by the governor, motion to which is imparted by the speed-wheel 18.

Having described my invention, what I claim is- 1. In a motor of the class described, the combination, with the framework, a main shaft journaled therein, a main gear and two pinions mounted on the shaft, and means for transmitting motion from the gear, of transverseshafts located at opposite sides of the main shaft, drums mounted thereon, cranks for the shafts, weights, guides, and cables passed over the guides and connected with the weights and drums, and gears mounted on the shafts and adapted to engage with the pinions of the main shafts, substantially as specified.

2. In amotor of the class described, the combination, with the framework, a countershaft, a main shaft, a gear thereon, means for communicating motion from the gear to the counter-shaft, and pinionsl mounted on the main shaft, of opposite Weight-operated shafts, movable boxes for the same, means for operating the boxes, and gears mounted on the weight-operatin g shafts and engaging the pinions of the main shaft, substantially as specified. Y

3. In a motor of the class described, the combination, with the framework, the central main shaft, the large gear thereon, the small pinions on the main shaft, the counter-shaft, and means for communicating motion from the large gear of the main shaft to the countershaft, of the opposite pairs of boxes mounted for sliding on the frame, U-shaped bails connecting at their terminals to the boxes, levers fulcrumed on the framework and connected to the bails, shafts located in each side of the main shaft and journaled in the boxes, said shafts terminating incranks, gears lloosely mounted in the shafts and adapted to engage the pinions of the main shaft, ratchet-wheels mounted on the shafts rigidly, pawls pivoted to the gears and engaging the ratchet-wheels, opposite guides, cables passed in reverse directions around the slidable shafts, andweights connected to the outer ends of the cables, substantially as specified.

4. In a motorof the class described, the combination, with the framework, the shaft 9, the gears 10, 11, and 412, mounted thereon, the counter-shaft 55, and an intermediate train of gearing from the gear 10 to the gear on the counter-shaft, of the boxes 29, mounted in ways upon plates 28 at opposite sides of the shafts 9, the winding- shafts 30 and 32, mounted inthe boxes, the gears 44 and 45, loosely mounted on the shafts 30 and 32, the ratchetwheels 62, rigid on the shafts 30 and'32, the pawls 63, pivoted tothe gears 44 and 45 and engaging the ratchet wheels, the ratchetwheels 61, mounted upon the shafts 30 and 32 at the inner sides of two of the'boxes 29,4 the pawls 59, pivoted to the boxes for engaging the ratchet-wheels and having inclined shoulders 60 at their front ends, the cam-blocks 62, located in the paths of the shoulders, and means for moving the shafts 30 andA 32 and their boxes, so as to throw the gears 44 and 45 into and out of engagement with the pinions-11 and 12 of the shaft 9, substantially as specified.

In testimony that I claim the foregoing as my own l have hereto affixed my signature in the presence of two witnesses.

EDMOND C. `WI-IEA'I. Witn esses:

T. P. ROBERTS, B. F. NowLIN.

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