US882262A

US882262A - Hoist.

Info

Publication number: US882262A
Application number: US35525407A
Authority: US
Inventors: Edward Y Moore
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-02-01
Filing date: 1907-02-01
Publication date: 1908-03-17
Anticipated expiration: 1925-03-17

Description

PATENTED MAR. 17, 1908.

E. Y. MOORE.

HOIST. APPLICATION FILED FEB.

PATENTED MAR. 17, 1908.

E. Y. MOORE.

HIST.

APPLICATION FILED fm1, 10m

2 SIEETS--SHEE'I' 2 @MUM 'and having its litt chsin extendingr .around a the axis of the hook, the lift chain hanging in l s bightwhich passes through s movable loudsupporting wheel and the shank or" the hook,

- balance.

.the line 3-3 Fig. 2; is e- 'nun'.iersis,v 1( sul l erts of the EDWARD Y. MOORE, Ol*

CLEVELAND, OHIO.

Hor'sfr.

Application filed February 1,

To all whom it may concern: l Be it known'thst l, Enwnnn Y. Moons, a citizen of the United States, residing at Cleveland, inthe county of Cuyahoga and State of Ohio7 have invented :t certain new and useful Improvement in lloists, of which the ollowin is a full, clear, end exact description, reierenee being had to the eccompan ing drawings.

T iepbject of this invention is to provide an elhcient portable hoist for high speed and com aratively small loads.

Patent No. 757,333 issued April 12, 1904;, shows olhoist suspensible from a. hook pocket wheel whose exis is directly beneath su orting pulley, es is usuel.

e present'invention rovides meeh'enism whereby such type of ioist moy o erste with a chain extending in o. single renc from the load to the support. This not onlyY enables the lood to be raised with twice the speed, but it also enables n hook to be provided et the end of the litt chain, wherebyv that chain may be used as n sling around the article to be lifted.

The invention comprises the combina-tion of a lift wheel, a suoporting hook above the axis of the lift wheel, and a means carried by the hoist frame and operating to deflect the lift chain to bring it beneath the axis oi the so that the hoist will not be thrown out of The invention is illustrated in the drawings embodied in c hoist of the type shown in my stent referred "to, and is hereinafter more ullly' described.

-lligure l is s vcrtieel section through the hoist along the exis of the shank of the supporting hook; Fig. 2 is s sideclovotion; Fig. 3 is s fingiientory horizontal section throu one of the lifting eccentrics, us indicated b3l plan oi the hoist portly broken :tw/ey is n vertical section oi the hoist in s plone parallel with Fig. 2 and teken substantially on the line 5---5 of Fi 4.

Beloning rto the drawings bv reference i 11 represent two moin These ports :ire rought togo the..r ne neuer ends where they are held hy heirs trie supporting hook 13 lievi/ng its shsfnlr swiveledin recesses hoist preme Specification of Letters Patent.

shaft 23 which is journuled on Patented March 17, 190s.

1907. Serial No. 355,254.

at the junction of the frame members. The

frame members are braced. bv the stationery sleeve 14 extending across them. Mounted on this sleeve is e. lift wheel 15, which, es shown, has ockets ior the reception of the links of the ift chain 16.

The mechanism shown for rota-ting the lift wheel l5 is shown, described und claimed in my vpotent referred to. lt will now be briefly described. The lift wheel is provided with gear teeth 17. Surrounding this gear 17 is a. Yoke 1R having internal teeth of grenter number than the teeth 17. The yoke 1s mounted on s pair of ecccntrics() which are j our'naled in the frame members and which have rigid with their shunlrs gears 21. i

weer 22 on a tthe sleeve 14. On this shaft is n suitnble hond-choin-wheel 25 adopted to drive it.

. As shown, suitnble broke mechanism is provided, and forms the connecting mechanism between the hond chain wheel and the shaft 23. This broke mechunisni includes it loose disk 26 having ratchet teeth, a pawl 27 adopted to lock it, friction disks and a. coller having an inclined lug 29.` This con` struction operates to force the hund wheel inuf'ord to chimp the disk 26 when the wheel is turned in o. raisingl direction. rlhis clamping during raising is idle :is the disk 26 rotates freely under the pnwl 27; it operates as a self-locking feature for holding;l the lood :it any desired pointI while to lower the load it onlj necessary to turn the hund wheel hruikwurd keeping it ahead ot the loweringr load. rllhis ie :itu re ol' the brake is more fully explained und is claimed in my Potent No. 794,997 issued July 1S, 1.905.

lt will be seen from the drawings ond dcscripl'ion that the axis of the lift wheel 14 is directly beneath the sbonk of the hook 13, und 'the point from which the hook is suspensihle. rlhis construction enables the hoist to be well huls-need. For light loods it is desiruble to use :t single lilt chnin instead oi' one depending in u bight. To enable such lil't ehzi-in to he used while preserving the baluncing ol the hoist, I provide mechanism to bring the load supporting hook directly beneath the exis ot' the lift wheel. This is shown in Fig. 5 ond is accomplished by providing n grooved roller 3() iouriuilcd lbetween the traine pluies 1l) und l 1 lower than the lift wheel and outx of the vertical plone through its exis. The groove of this roller is edsptedto These gears 21 mesh with the receive those links which are parallel with the frame plates, the links transverse to the frame plates lying on the surface of the roller.

Co erating with the roller is a stationary guide block 3l carried between the frame plates and having a. groove corresponding to the groove in the roller. This guide block and roller are so placed that the chain hangs down from the hoist directly beneath the axis of the lift wheelv and beneath the shank of the supporting hook- The lift chain beingy )rovided with a hook 32 at its lower end, the ower portion of the chain may be used as a sling, the hook hooking around the chain itself, as is well understood. The idle portion of the chain may depend freely from the opposite side of the lift wheel, the end of this idle portion eitherhanging down or being suitably supported, as shown in Fi 5 by the eye 34 to' which the end of the c ain 16 is secured'. Y l

It will be'seen that by very simpleniechanisn). l have provided a balanced suspensible hoist operating with a single lift chain, so that high speed may be attained.

I claim:l

l. The combination of a hoist frame, a supporting hook having its shank swiveled thereto, a lift wheel directly below thesaid shank, a guide roller below the lift wheel but offset from the plane through said shank and axis of the lift wheel, said roller havingl a peripheral groove to receive the links facing at right angles to the axis of the roller and a eylindrioal portion on each side of the groove to receive the links facing parallel with said axis, a chain extending over the lift wheel and along the inner side of the guide roller, and a chain guard carried by the hoist frame cooperating with said roller and providing a chain-raceway between thern limited to .a single chain, said guide being out of the way ofthe portion of the chain depending from the other side of the lift wheel.

2. In a hoist, the combination of a frame including a'pair of side plates, a hook having its shank swiveled to said frame, a lift wheel y carried by the frame, a guide roller carried by the frame on an.- aXis parallel with the lift EDWARD Y. MOORE. Witnesses ALBERT H. BATES, "WINIFRED L. MCGARRELL.