US1478272A

US1478272A - Hoisting device

Info

Publication number: US1478272A
Application number: US613972A
Authority: US
Inventors: Boulanger Aime
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-01-20
Filing date: 1923-01-20
Publication date: 1923-12-18
Anticipated expiration: 1940-12-18

Description

Dec. 18, 1923. 1,478,272

A. BOU LANG ER y HOISTING DEVICEV Filed dan. 2o. 1925 2 sheets-sheet 1 r /7/Z0//2Ley Dec. 18, 1923.

. 1,478,272 A. BOULANGER HOISTING DEVICE Filed dan. 20. 1925 2 Sheets-Sheet-2 16 Y 1a 1f n iT- Le I 8 I l I n a n 1.9 f 5 j] I 1 I Q I l nu `f9l 'jv I o l l [I y IIII' I I d l I Il I I 1 I Patented Dec. '18, 1923.

. narran stares HoIsTI'Ne :envien Appncat'ionniea January 2o, i923. serial No. 613,972.

- To all whom t may concern.'

Be it known that I, AIM- BOULANGER, a. subject of the King ofGreat Britain, residing at Normandin, Province of Quebec, 5 Canada, have invented certain new and useful Improvements in Hoisting Devices; and l do hereby declare that the following isf a ful-l, clear,` and exactgdes'cription ofthe invention, such as will enable others skilled in the art to which it 'appertains to make and use thesa'me.y

The present invention pertainsto novel; improvements in a hoisting device designed particularly for use on farms. l

The primary objecty of theinvention is the provision of va-'device ofky this character including a winding'drum', the direction of rotation of which may bef reversed at will. Qbviously, the; drum isl turned in the'windingv direction to raise'the; lo'ad, and in the; op-

positedirection to allow the-'descent ofthe' free unweighted en-dof th'e cable after? they load has,` been renrio-ved' therefrom? 'lhe inventiony further includesA a braking' mechanism for'` preventingfrotation ofthe' drum in case the fengineish'ould stop; at an-- undesired time. Because ofv the fact. that-- gas engines whichf arey used onfarming implements are likelyto stop at an unexpected moment, th-isf bralring dev-icel isy useful,v in@ preventing load in the unexpectedly. l 1 The invention Fisfully-disclosed in thefo'llowing description and ir thel accompanying drawings inawhiclr: Y

`Figure 1 is a side eleva-tion 'of thedevice; Figure 2"'isf'a p-lan viewg? Figure 3'is an end view;V l Figure 4: is: a fragmentary side elevation opposite tof Figure 1.;`

'Y Figure 5 is' afraginent'ary'v sidefelevation corresponding to ligurel 1,- showing the"` auxiliary pulley in Contact with1 one 'of the ily wheels;Y y

Figure 6 is a section on theline 6-26 of Figure 4c; and, i

Figure 7 is a-section on the line 7-.7'.ofK Figure 6. l D The devicey comprises ai base 11'onwhiclfiis'A mounted a gasolineengine2including a cyl; inder 3. The' engine c'asing includes-V apair of vertical members' 4" the' tops of ywhich are tted with bearings .for supportingfinr a rotatable manner the crankshaft 6.v The the descent off a: partly raisedevent that the engine shouldsto-p latter is connected to the piston (not shown) ofthe engine by means of a connecting rod 7 inthe usuagl manner. v

On the ends of the crank shaft are mounted ily wheels 8 and 9, the end adjacent the 'wheel 8 having an extension 10 through which is passed a pin 11. On this end is slidably receiveda driving pulley 12 on the inner face lof which is formed a boss 13 having a Vtransverse slot 14 adapted to receive the pin 11. A ystem 15 extends from the outer face of the pulley and has formed thereon a p'air of spaced collarsV 16. A bracket 17 is secured to the base in a line beneath the extension 10 and stem 15, and vhas pivoted thereto a shifting lever 18 which straddles the stem between the collars 16 in' such a manner that the pulley 12 can be moved upon actuation of the lever.

On the base 1, forward of the side members fi 'are mounted a. pair of

blocks

19 and 20,-` one end of a counter shaft 21 being jour# nalled'inthe' block 19. A be'aringblock 22 havingv elongated vertical slots 23 formed therethrough is slidably mounted on the block 2O by means of boltsv 24 passing thjrough thel slots and| extending into the block. `Theother end of; the counter shaft 21*isfjournalled inthe slidable block` 22. On onejendf of the countershaft iskeyeda driven pulley 25 in alignment with the driver 12, a belt 26 beingnsed for transmitting power from the driving; to the driven pulley'. At the opposite end of the counter shaft isV mounted an auxiliary pulley 27- in alignment with the fly wheel 9. Ac lever 28' has its intermediate portion connected to the lcounter shafft 21, as shbwnin Figure 1,- the lower end being pivoted to the base` 1,: as indicated by the numeral 29. intermediate the pulleys 9 25- and 27 ,f al drum 30 is xed tothe counter shaft,y having av hoisting cable' 3-'1 wound therearound;

In operation, the auxiliary pulley 27 is normally held out of engagement with the fly wheel' 9", asv shown in Figures 1 and 2. The' pulley 12 is shifted inwardly so that the pin 11 is received in the slot 14, whereby the pulley 12 is rotated with the crank shaft and transmits' power to the driven pulley 25 and' through the belt 26. The' oranlrshaft turning i'nat clockwise direction consequently causes the drum to rotateinthe same direction whereby they cable 31- is wound thereon. Inf this position the device can' obslidably mounted on said end vand having a.

viously be used for hoisting the cable being nierelytrained over a pulley fixed to an ele-l vated support.

At the end of a hoisting operation, after the load has been removed from the end of the cable, the weight of the latter even when combined with the grapple is insufficientv to lower the same.v Accordingly, the shifting device 18 is pulled outwardly sothatfthe pulley l2 i-s freedfrom the pin 11 and no power isvtransinitted therefrom to the drum.l

The lever 28 is now pushedy rearwardly, bringing the auxiliary pulley' 27 into engagement with the Hy wheel)V whereby the drum is rotated vin a counter" clockwise direction allowing the free end ofthe cable vto descend.

To the inner face lof the block 20 is pivoted a brake lever .33 adapted for engagement with the auxiliary pulleyl 27. Inasy muchas this device is adapted for use on farms where gas engines are generally employed, it is very likely that the engine will stop in the midst of av hoisting operation.v In the event that such an occurrance takes place, the descent of the suspended'load is avoided by upward pull on the lever 33, as a' consequence of which the auxiliary pulley 27-isgbrought into close engagement with the .Hy wheel@ and, is braked, thusstopping rotationof the drum 30. H`urthermore,'when the device is used to lowera load from an elevated position without the operation of' the engine,the brake lever maybe employed inthe above described mannerto prevent a too rapid descent.

While a specific embodiment of the invention has been illustrated and described, it is to be understood that various alterations'in the details of construction may be madeV without departing from the spirit of the in- V- vention as indicated by the appended claims.

Having thus fully described the invention,4 what I cla-im as new and desire to protect .by

Letters Patent is e s l. A hoisting -device comprising a kcrank shaft, a1 flywheel at each end thereof, one ofi saidiendsbeing extended, a driving lpulley clutch engagement therewith, a counter shaft operatively connected with said drivingpul'v ley, a drumrmounted on said shaft, an aux-y iliary pulley mounted on said shaft in align# ment with one of said Hy wheels andI adapted for engagement therewith. 1 Y' 2. A hoisting device comprising a crank shaft, a Hy wheel at each: end thereof, one of'said ends being extended, a driving pulley slidably `mounted on said endand having a Vclutch engagement therewith, a counter shaft journalled in parallel relation with said crank shaft and having oneend slidably mounted with relation thereto, van opn erative connection between said driving pulley and said counter shaft, a drum mounted on thecounter shaft, an auxiliary pulley mounted on the counter shaft in alignment with onerof said Hy wheels, and means for shifting the slidable end of the counter shaft.

shaft, a pin passed through one end thereof, a 'driving'pulley slidably mounted on said 3. A hoisting device'comprising a crank end, aboss formed on one face of said pulley and having a slot cut therein adapted to .receive said pin,.a Hy wheel keyed tothe s crank shaft, a counter shaft mounted in parallel relation with said crank shaft and hav-1y f ing fone end slidable withf relation thereto,l

an Operative connection between the driving pulley andthe COunter''Shaft, a drum mount- 80- Y crank shaft, a counter shaft mounted in p'arf allel,` relation with said cran-k- Yshaft?` and having yone ,end slidablewith relation thereto', an operative connection'between the driving pulley and thecounter shaft,la'drum vmounted.V

on the vcounter shaft, an auxiliary pulley keyed to the countershaft in alignment with the' Hy wheel, and* means l for` shifting said slidable end to bring the 'auxiliaryf'pulley into and out of engagement withfthe fly wheel. H \v y 5. A hoisting deviceV comprising aicrank4 shaft, a `pin passed through one endl-thereof, a driving pulley slidably mounted on said end, va boss Vformed on--one face ofi said pulley and-having'a slot'cut therein ladapted Y to receive'said pin, a Hy wheel `keyedtotheY V. crank shaft, a'coun'terffshaft, mountedin parallel relation with said-crank 4shaft and aving` one end slidable with? relation there.-

to, an operative Lconnection .between the,` dri ving pulley and the'counter shaft,la kdrum mounted on the counter shaft, anrauxilfi'ary pulley keyed to the counter shaft vin alignment with the Hy wheel,means"for. shifting said slidable endV to bring the auxiliary pulley Y into and out of engagementfwith'fthe Hy Y wheel, and a' lever pivotedfto the base of the machine adjacent the auxiliary pulley and` adapted to engagethesame.4 l

6. A hoistin device comprising a frame, a crank shaft Journalled therein, means for driving said cra-nk shaft, a driving pulley slidably mounted Von one end of said shaft and having a clutch connection therewith, means for vshiftingsaid pulley, a Hy wheel mounted on the opposite end of said shaft, a counter shaft journalled in the fraine in parallel relation with the crank shaft and um having one end slidably supported with relation thereto, an operative connection between the driving pulley and the counter shaft, a drum mounted on the counter shaft, an auxiliary pulley keyed to the counter shaft at the slidable end and in alignment With the ily Wheel, and means for shifting said' slidable end to bring the auxiliary pulley into and out of engagement with the fly Wheel.

7 A hoisting device comprising a frame, a crank shaft journalled therein, means for driving said crank shaft, a driving p-ulley slidably mounted on one endof said' shaft and having a clutch connection therewith, means for shifting said pulley, a fly Wheel mounted on the opposite end ofsaid shaft, a counter shaft journalled in the frame in parallel relation With the crank shaft and having one end slidably supported With relation thereto, an operative connection between the driving pulley and the counter shaft, a drum mounted on the counter shaft, an auxiliary pulley keyed to the counter shaft at the slidable end and in alignment with the fly Wheel, and means for' shifting said slidable end to bring the auxiliary pulley into and out of engagement With the y Wheel.

parallel relation With the crank shaft and" having one end slidably supported Withrelation thereto, an operative connection between the driving pulley and the counter shaft, a drum mounted on the counter shaft, an auxiliary pulley keyed to the counter shaft at the slidable end and in alignment with the y Wheel, means for shifting said slidable end to bring the auxiliary pulley7 into and out of yengagement With the fly Wheel, and a brake lever pivoted to the frame at a point in advance of? the auxiliary pulley and adapted to engage the same.

In Witness whereof I have hereunto set my hand.

AM BOULANGER.