US1205178A - Hay-hoist. - Google Patents

Description

H. DRUSCHEL.

HAY HOIST.

APPLICATION FILED NOV. 13. 1915. 1,265,178. Patented Nov. 21, 1916.

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H, DRUSCHEL.

HAY HOIST.

APPLICATION FILED NOV. 13. 1915.

Patented Nov. 21

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H. DRUSCHEL.

HAY HOIST.

APPLICATION FILED Nov.13. 1915.

1 ,205,178. Patented Nov, 21, 1916.

3 SHEETSSHEET 3.

HENRY DRUSCHEL, OF COLUMBIA, PENNSYLVANIA.

HAY-HOIST.

Application filed November 13, 1915.

To all whom it may concern:

Be it known that I, HENRY DRUSCHEL, a citizen of the United States, residing at C0- lumbia, in the county of Lancaster and State of Pennsylvania, have invented certain new and useful Improvements in Hay- Hoists, of which the following is a specification.

My invention relates to improvements in hay hoists, the object of the invention being to provide a hoist for hay or for other use to which it may be put which is provided with an improved automatic brake stopping the turning movement of the winding drum, and holding the load at any position.

A/further object is to provide a hoist of the character stated which economizes labor, which prevents accidents due to a breaking line, and which is strong and durable to perform the functions for which it is intended.

A further object is to provide a hoist with an improved construction and arrangement of return drum which may be operated to return the load holding device to starting point.

With these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings: Figure 1 is a top plan view illustrating my improvements. Fig. 2 is a fragmentary view in section illustrating my improved brake, the section being taken on the line 22 of Fig. 1. Fig. 3 is a view in longitudinal section on the line 33 of Fig. 1. Fig. 4 is a view in longitudinal section on the line 44 of Fig. 1. Fig, 5 is a view in end elevation, and Fig. 6 1s a fragmentary view partly in section and partly in elevation illustrating the mounting of the lever 15.

1 represents a supporting base to which upright frames 2 and 3 are secured. These frames 2 and 3 support horizontal drum shafts 4 and 5 and also support a brake shaft 6 which is located in an appreciably lower plane than the drum shafts.

The shaft 5 constitutes the driving shaft, and is provided at one end with a driving pulley 7 driven from any source of power. A. pinion 8 secured to shaft 5 meshes with a gear wheel 9 secured to shaft 4, and a Specification of Letters Patent.

Patented Nov. 21, 1916. Serial No. 61,213.

guard 10 is positioned over the pinion 8 and gear 9, and is secured at its ends to the base as shown at 11 to effectually guard the gears.

The gear 9 is provided on one side with an integral conical extension 12 which constitutes a cone clutch member and projects within a brake drum 13. This brake drum constitutes an integral flange on one end of my improved winding drum 14, and also operates as a clutch member to cooperate with the clutch member 12, and cause the drum and gear to turn together whenever the drum is forced toward the gear by means of a lever 15 as will be more fully hereinafter described.

A coiled spring 16 is located around shaft 4, between the drum 14 and gear 9, and tends to force the drum away from the gear and release the clutch. A to turn on the shaft 4 and operates against a fixed cam 18 located on the shaft 4, and secured by a bolt 19 to frame 2. This cam 17 has an integral projection 21 to which the lever 15 above referred to is secured, and the movement of the lever causes the movement of the cam 17 against stationary cam 18, and compels the drum 14 to move toward the gear 9. A washer 22 is preferably interposed between the cam 17 and the drum 14 to reduce friction and sustain the wear. The belt 19 above referred to projects through slots 23 and 24 in webs 26 and 25, integral with the cam 18 and frame 2 respectively. tric with the axis of the shaft 4, so that the cam 18 can be adjusted on the shaft and regulate the movement imparted by the cam 17 to give to the drum 14 just the desired movement, and to compensate for wear.

The bolt 19 is preferably of the ordinary type with the nut 27 on its end, so that when the nut is screwed'home, the webs 25 and 26 are securely clamped against movement. brake band 28 is located around the brake drum 13, and at its ends is connected to a bar 29, and the latter secured to the shaft 6 by bolts 30. A brake shoe 31 is also located on the shaft 6, and bears against the outer face of the drum 13, so that when the shaft 6 is turned slightly in one direction, the brake band is tightened and the shoe 31 is pressed against the drum, and the latter is securely held against possibility of movement.

cam 17 is mounted J The slots 23 and 24 are concen- A crank arm 32 is secured to the l fake shaft 6 and is connected by a ll11l( 33 with lever 15, so that the movement of the lever not only causes the drum 1 k and gear 9 to be clutched, but also releases the brake. An operating line 34- is secured to the lever 15, and a weight 35 is provided on the lever to return the lever to its normal position, and I would have it understood that the normal position of this lever causes the application of the brake, and releases the drum 14 from operative engagement with the gear 9, hence should the line 3e break, the lever 15 will fall to its normal position releasing the drum let from the gear, and at the same time applying the brake, hence holding the load wherever it happens to be, and preventing possibility of accidents or injury due to the falling load.

On the drive shaft 5, I locate a return drum 36 which is provided at one end with a cone clutch member 37 to engage a cone clutch member 38 on the driving pinion S. A. spring 39 between the clutch members normally holds the drum away from the pinion, and a cam L0 movable on the shaft 5 and operating against a fixed cam 41, causes the drum 36 to move in a direction to clutch with the pinion as is readily seen in Fig. at. This cam a0 is provided with an operating lever 42 and a line 4:3 is connected thereto, so that it can be operated from a distance. The fixed cam 41 is adjustably connected to the frame 2 by means of a bolt it which projects through slots in webs 4-6 similar .in all respects to the webs 25 and 26 above referred to, so that the fixed cam can be adjusted to give just the necessary movement desired and to compensate for wear. Vaslr ers 47 are interposed between cam and the drum 3G to reduce friction and take up wear, and grease cups 4-8 are provided on the respective hearings to permit a constant lubrication. A pin 49 projects from the lever 15 and is in such position that it is struck by the lever 42 and operates as a stop so that the lever 42 cannot be moved to throw the drum 36 into clutched engagement with the pinion 8 until the lever 15 has been previously moved to release the brake. In some instances I may, of course, dispense with the return drum 36, but in many cases it will be found a great advantage to have both the hoisting drum and the return drum connected and operated as above described.

Various slight changes might be made in the general form and arrangement of parts described without departing from my invention, and hence I do not limit myself to the precise details set forth, but consider myself at liberty to makev such changes and altere- .Copies two subscribing tions as fairly fall within the spirit and scope of the appendedclaims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A device of the character described, comprising a support, shafts mounted in the support, intermeshing gears on the shafts, drums loosely mounted on the shafts, clutches between the gears and drums, levers on the shafts constructed to move the drums longitudinally into clutched engagement with the gears, a brake engaging one of the drums, said brake operated by one of said levers, means for moving and normally holding said last-mentioned lever in position to apply the brake, and a stop on said lastmentioned lever extending into the path of movement of the otherlever, whereby the brake must be released before the latter lever can be operated, substantially as described.

2. A device of the character described, comprising a support, parallel shafts mounted in the support, intermeshing gears on the shafts, drums loosely mounted on the shafts, clutches between the gears and drums, levers on the shafts constructed to move the drums longitudinally into clutched engagement with the gears, a brake engaging one of the drums, said brake operated by one of said levers, a weight on the last-mentioned lever normally holding the lever in position to apply the brake, and a stop on said lastmentioned lever in the path of movement of the other lever, whereby the brake must be released before the other lever can be operated, substantially as described.

3. A device of the character described, comprising a support, shafts mounted in the support, intermeshing gears on the shafts, drums loosely mounted on the shafts, clutches between the gears and drums, levers on the shafts constructed to move the drums longitudinally into clutched engagement with the gears, a brake engaging one of the drums, said brakebeing operated by one of said levers, means for moving and normally holding said last-mentioned lever in position to apply the brake, and means for engagement with both of said levers whereby said brake lever must be moved to release the brake before the other lever can be operated, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of Witnesses.

HENRY DRUSCHEL.

lVitnesses: V

RAYMOND I). SHUUrz, F. G. CAIN.

of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. C.

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