US1750815A - Hoisting device - Google Patents

Description

1%, 1930. GM. REX

HOISTING DEVICE Filed Jan. 5,19%

4 Sheets-Sheet 1 INVENTOR.

A TTORNEYS March 18, 1930. G. M. RIX

I HOISTING DEVICE Filed Jar 1. 5, 1925 4 Sheets-Sheet 2 INVENTOR.

March 18, 1930, '6, M. m 1,750,815

HOISTING DEVICE Filed Jan. 5, 1925 4 Sheets-Sheet 3 IN VIEINIOR.

March 18, 1930. G. M. Rl'x v 7 1,750,815

noxsmre DEVICE Filed Jan. 5. 1925 4 Sheets-Sheet 4 I {INVENTOR W7. 14% i v W $977. 55%

- TTORNEYS.

Patented Mar. 18, 1930 UNITED STATES PATENT OFFICE GLENWAY I. B11, 0] CEDABBURG, WISCONSIN, ASSIGNOB TO SQUIEB-BIX COMPANY, OF MILWAUKEE, WISCONSIN nors'rnvo DEVICE Application filed January 5, 1925. Serial No. 635.

This invention relates to improvements in hoisting devices, more articularly adapted for use with tractors 0 the Fordson type and others. 7

It is one'of the objectsof the present invention to provide a hoistingdevice which may be easily mounted upon a tractor and which will conveniently handle any load Within its capacity in a very sim le manner.

A further object of t e invention is to provide a hoisting device which may be used for hoisting, or when slightly modified can be used for excavating purposes.

A further object of the invention is to provide a hoisting device in which the hoisting mechanism Wlll automatically support its load while at rest.

A further object of the invention is to provide a hoisting device which is connectible to and is driven by the power means of the tractor.

A further object of the invention is to pro vide a hoisting device which is of simple constrnction is strong and durable, and is well ada ted for the purpose described.

ith the above and other objects in view, the invention consists of the improved hoisting device and its parts and combinations as set forth in the claims, and all equivalents thereof. v

In the accompanying drawin s, in which the same reference characters indicate the same parts in all of the views:

Fi 1 is a side view of the improved hoistin fevice shown mounted on a tractor ig. 2 is a vertical sectional detail view taken on line 2-2 of Fig. 1;

" Referring to the drawings,

' Fig. 3 is a sectional detail view taken on line 3- -3 of Fig. 2;

' Fig. 4 is a sectional detail view on a larger scale, taken on line 4-4 of Fig. 2.

Fig. 5 is a side view of a modified form of device adapted for use as an excavator or digger; and

' Fig. 6 is a detail view on a larger scale, of the driving mechanism shown in Fig. 5.

the numeral 8 indicates a tractor of the Fordson ty e which is prgvided withthe usual power ta e ofi shaft 9. "The improved hoisting device the - extending at right an is mounted on the tractor and com rises a frame 10 consisting of vertical memllers 11, upper angular members 12 having extension boom portions 13 and brace members 14. The lower ends of the angular members 12 are provided with brackets 15 which surround while the front vertical members 11 are connected to the frame 8 of the tractor. A shaft 16 journaled on the upper portion of the frame is provided with a drum 17 upon which a lifting cable 18 is wound. Said cable extends forwardly over a grooved wheel 19 mounted on the outer end portion of the boom, and at its lower end is provided with a hook 20 for convenience in connecting to the loads to be moved. ,The drum is journaled on the shaft and is provided with clutch teeth 21 which are engaged by the teeth of a clutch collar 22 slidably but non-rotatably mounted on said shaft. A shift lever 23 controls the movement of said clutch collar to permit the drum to turn freely on the shaft in unwinding the cable therefrom. A counter shaft 24 mounted below the shaft 16 is provided with a gear wheel 25 which meshes with a gear wheel 26 mounted on the shaft 16. The outer end of the shaft 24 is provided with a worm wheel 27 in mesh with a worm 28 mounted on a short second counter shaft 29 les to the shaft 24. One end of said short s aft is provided with a bevel gear 30, and a short third counter shaft 31 extending transversely of the end of the shaft 29 is provided with two bevel gears 32 which are in constant mesh with opposite sides of the bevel gear 30. The bevel gears 32 are journaled on the shaft 31 and are each provided with clutch faces 33 which are adapted to be engaged by a clutch collar 34 splined on the shaft 31 to reverse the direction of rotation of the drum 17. A clutch lever 35 controls the clutch collar 34:. The outer ends of the shafts 9 and 31 have sprocket wheels 36 and 37 mounted thereon which are engaged by a sprocket chain 44: to transmit ower from the tractor shaft 9 to the reversing shaft 31 for operating the hoistingmechanism. As thus constructed, the power of the tractor will be increased by means of the bearings of the rear wheels of the tractor,

6, the frame is slightly modified by providing a longer brace member 14 and mounting a pulley and shaft 19 medially thereon wl .Cl)

s connected to rotate a gear 38 which is in mesh with a rack bar 39 slidably positioned in front of the tractor. A scoop shovel 40 having a hinged bottom portion 41 is carried by the lower end of the rack bar 39 and is adapted to be raised or lowered by the gear 38. A shaft 42 journaled on the upper portion of the frame 12 has a geared connection 43 with the drum shaft 16 and is driven thereby. A sprocket chain andvwheel connection 44' is provided between the shafts 42 and 19 to transmit motion thereto. The cable 18 instead of being connected to the hook 20 passes around a pulley 45 mounted on the scoop and then extends upwardly to the outer end of the extension boom and is connected thereto, as indicated by the numeral 46, to provide a forward scooping movement of the scoop and also to lift the scoop and its load. A locking in 47 controlled by a cable 48 is provided for unlocking the bottom portion of the scoop shovel to discharge the load thereof. The transmission gearing is enclosed in a suitable casin 49 to protect the same and act as a guar against accidental injury to the operator.

From the foregoing description, it will be seen that the hoisting device is of ver simple construction, is easy-to operate, wil automatically hold the load in suspended position, and is well adapted for the purpose described.

What I claim is:

1.- The combination with a tractor having a driving shaft, of a hoisting device therefor, comprising a frame mounted on the tractor and having an extension forming a boom, a shaft journaled on the frame, a drum journaled on the. shaft, a clutch means for connecting the drum to the shaft, a counter shaft journaled on the frame and having a geared connection with the drum shaft, a second counter shaft journaled on the frame and having a non-reversible worm and wormwheel connection with the first counter shaft, a third counter shaft 'ournaled on the frame, gears journaled on t e third counter shaft and having a geared connection with the second counter shaft, clutch means for positive- 1y connecting either one of the last mentioned gears to the third shaft, means for drivingly connecting the third-counter shaft to the driving shaft, and a cable connected to the drum and extending towards the boom.

2. The combination with a tractor having a rear axle and driving shaft of a hoisting device therefor, comprising oblique frame members mounted on the tractor and extending upwardly from the rear axle and for wardly therefrom to form a boom, a shaft journaled on'the upper portion of the frame members, a drum ournaled on the shaft, a;

clutch means for connecting the drum tothe shaft, a counter shaft journaled on the frame and having "a geared connection with the drum shaft, a second counter shaft journaled on the frame and having a non-reversible worm and worm Wheel connection with the first counter shaft, a third counter shaft jourand the 'drivin shaft, and a cable connected.

to the drum an extending towards the boom.

3. The combination with a tractor having-- a driving shaft, of a hoisting device therefor, comprising angular upper frame members mounted on the tractor and having extensions forming a boom, a pulley journaled, on the boom,

vertical members mounted on the tractor and connected to the upper members, brace members connected to the said members, a

shaft journaled on the upper frame members, I

a drum journaled on the shaft, a clutch means for positively connecting the drum to the shaft, a counter shaft journaled on the frame and having a geared connection with the drum shaft, a second counter shaft journaled on the frame and having a non-reversible worm and .wormwheel connection; with the first counter shaft, a-third counter shaft 'ournaled on the frame and having a 'pair of evel gears journaled thereon which are. in mesh with a bevel gear mounted fast-on the second counter shaft, clutch means for locking either one of the pair of bevel gears to the third shaft, a sprocket wheel and sprocket chain driving connection betweenthe third counter. v shaft and the driving shaft, one of the sprock-,

et Wheels being journaled on the shaft, a clutch means for locking the journaled sprocket wheel to its shaft, and a cable mounted on the drum and extending over the pulley for connection with a work instrumentality.

4. The combination with a tractorvhaving a driving shaft, of a hoisting device therefor, com rising a frame mounted on the tractor and having an extension forming an upwardly extending boom, a shaft journaled on the frame, a drum journaled on the. shaft, 'a clutch means for connecting the drum to the shaft, a counter shaft journaled on the frame and having a geared connection with the drum shaft, a second counter shaft journaled on the frame and having a worm and worm wheel connection with the first counter shaft, a third counter shaft journaled on the frame, gears journaled on the third counter shaft and having a geared connection with the second counter shaft, clutch means for positively connecting either one of the last mentioned gears to the third shaft, a sprocket wheel and sprocket chain driving connection between the third counter shaft and the driving shaft, and a cable connected to the drum and ex tending towards the boom.

In testimony whereof, I afiix my signature.

GLENWAY M. RIX.

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