US1213398A - Frictional gearing. - Google Patents

Description

A. MOEDE. FRICTIONAL GEARING. APPLICATION-FILED APR. 2a. 1916.

Patented Jan. 23,1917.

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A. MOEDE.

FRICTIONAL GEARING.

APPLICATION FILED APR. 28,1916.

1,213,398. Patented 1%.231917.

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jg j! f 1 v 5 70 w 20 19W A 98 55 Q50 I: w L w 2 E0 ION UNITED STAT-Es PAT- ALBERT MOEDE, OF REEDSVILLE, WISCONSIN.

FRICTIONAL GEARING.

Specification of Letters Patent.

Patented Jan. 23, 1917.

Application filed April 28, 1916. Serial No. 94,148.

The present invention relates to the class of machine elements and more particularly to new and useful improvements in frictional gearing.

The primary object of my invention is to provide a mechanism for transmitting power from a driving to a driven portion, and consists of the construction and combination of a device which shall be hereinafter described and claimed.

The device is particularly adapted for connection with the carrying and hoisting mechanism of the usual traversing hoist, improved means being provided for driving the hoisting cable and running cable for moving material to be transferred with the greatest accuracy and ease.

v further object of my invention is to provide a device of the class described having means associated therewith whereby the power transmitting mechanism may be controlled from a point distant from the machine.

Other objects and advantages to be derived from my invention will appear from the following detailed description and the claims, taken with an inspection of the ac companying drawings, in which Figure 1 is a perspective view of a traversing hoist having my improved hoisting jack associated therewith; Fig. 2 is a side elevation of my' improved hoisting jack; Fig. 3 is a top plan view of the same; Fig. 4

is-a longitudinal sectional view of the hoisting device taken on the line 44 of Fig. 3; and Fig. 5 is a detached fragmentary perspective view of the shifting mechanism.

Referring more particularly to the drawings, wherein similar charactersof reference designate like and corresponding parts throughout the various views, 1 and 2 designate the posts of a traversing hoist, a carrier cable 3 being extended between said posts. A carriage 4: is mounted on the carrier cable 3 and traversable thereupon. The hoisting .and transferring cable is designated 5 and passes into the carriage 4: and about suitable sheaves, not shown, being trained about s1m1- relation.

lar sheaves arranged in the block 6 carrying the hay fork 7. The return cable is designated 8 and passes through suitable openings in which are arranged guiding pulleys, said pulleys being mounted on the posts 1 and 2. The foregoing structure does not form any essential part of my invention but is merely being described to illustrate one application of the' device.

The hoisting jack comprises preferably a frame F formed of a plurality of bottom stringers 9, said bottom stringers 9 supporting a plurality ofvertical spaced standards 10,. said standards in turn supporting top stringers 11 arranged in parallel relation to the stringers O and in parallel relation to each other. Transverse beams 12. arranged adjacent each end of the frame F serve to maintain the side frames formed by said stringers 9, 11 and standards in spaced The driving means of my improved jack comprises a shaft 14 mounted in a bearing 15 carried by one of the stringers 11, said shaft being shiftable on the frame F at the free end thereof. A driving pulley 16 is mounted on said shaft 14 and a belt is trained over said pulley, said belt being connected to any suitable prime mover. The free end of the shaft 14 carries a friction roller 17, the shaft being arranged in a bearing 18, said bearing being slightly elongated whereby to accommodate the shaft in its lat eral movement for a purpose which will hereinafter appear. The shifting mechanism for the shaft 14 comprises a lever 19 pivotally mounted in a bracket 20 carried by one of the stringers 11, preferably the stringer carrying the bearing 18, said lever having a bifurcated end 21 provided with an enlarged portion 22 embracing the shaft 14. The lower end of the lever is connected by means'of a bar 23 and strap 24 to an operating lever 25 pivoted in a bracket 26 carried by one of the stringers 9. To maintain the lever 19 in the neutral position, which position is its normal position, I provide a pair of coil springs 27 and 28 anchored at 29 and 30 and having their free ends con nected with said lever 19 through the medium of alink 31 pivotally associated with said lever. The tension of the springs is adjustable by means of screws 32 and 83. As best shown in Fig. 5 the friction driving wheel 17 is provided with a friction surface 34.

I provide a. pair of operating drums, designated 35 and 36, said drums being mounted in the frame F between the stringers 11 on shafts 37 and 38, said shafts journaled in suitable bearings 39 and 4:0. On the free ends of the shafts are mounted power receiving wheels 41 and 42, the wheel 41 being in the present instance the larger wheel for a purpose which will hereinafter appear.

The peripheries of the wheels 41 and d2 are disposed adjacent the driving pulley 17 whereby when the latter is shifted laterally in the bearing 18 engagement will be had with one or the other of said wheels tl and 42.

The hoisting cable 5 is wound about the drum 35 as best shown in Fig. 1, and the return cable 8 is wound about the drum 36. As shown in Fig. 1 the post 1 is placed to one side of the hoisting jack but this is not essential. However, to avoid binding of the ropes 5 and 8 when atthe ends of the drums 35 and 36 I provide a plurality of sets of angularly arranged anti-friction rollers and 46 mounted between angularly arranged parallel sets of bars l7 and 48.

To operate the lever 25 from a point dis- .tant from the machine I provide cables 50 and 51 connected at 52 to said lever. The cables are trained through pulleys 53 and 5 carried by supporting arms 55 and 56, the arm 55 being an extension of one of the arms 48.

In operation, assuming that the shaft H is revolving in the direction of the arrow in Fig. 1 and that the wheel 17 has been brought into engagement with the large wheel 41 the hoisting cable 5 will be actuated causing the load of hay or the like designated to be raised. lVhen the block 6 reaches the carriage continued rotation of the drum 35 will pull the carriage along the carrier cable 3. To return the carriagefor another load the lever 25 is shifted causing the wheel 17 to engage the power wheel 42, releasing the drum 35 and permitting the drum 36 through the medium of the return cable 8 to move said carriage outwardly to receive another load. It will of course be readily apparent that thestrict application of my improved hoisting jack to the use as shown need not be had since there are many hoisting operations to which the device may be applied.

From the above description it will be ,readily apparent that l ,have provided a novel hoisting device having a minimum number of parts yet forming an effective ,power transmitting mechanism. -1 do not desire to be limited to the exact form of frame shown and described in view of the fact that this frame may be if desired formed from cast metal having the bearings formed thereon, however, the structure disclosed in the drawings has been very effective in actual practice though showing only one form of construction which might be employed. A brain is provided engaging the wheel From the above description taken in connection with the accompanying drawing, it is thought that a clear and comprehensive understanding of the construction, operation and advantages of my invention may be had, and while I have shown and described my invention as embodying a specific structure, I desire that it be understood that I may make such changes in said structure as do not depart from the spirit and scope of the invention as claimed.

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

1. The combination with a hoisting device of the class described, including a base frame, a pair of parallel shafts mounted on said frame transversely thereof, hoisting drums carried'on said shafts, wheels carried by the free ends of said shafts, of a driving shaft, a friction wheel carried by said driving shaft, one end of said shaft carrying said friction wheel being shiftable for cngagement with the other wheels, a lever for shifting said shaft, the said lever being pivotally connected to the base, pulley wheels, supporting arms for said pulley wheels mounted on the said frame and ex tending upwardly therefrom, and a pair of cables connected to said lever and trained over the pulleys on the opposite sides thereof for purposes specified.

2. The combination with a hoisting device ofthe class described, including a base frame, a pair of parallel shafts mounted on said frame transversely thereof, hoistingv drums carried on said shafts, of a drivin shaft, one end of which is laterally shiftable, friction means carried by each of said shafts, a lever for shifting said shaft pivotally connected to the base, a bracket member connected to the frame, a second lever pivotally mounted in said bracket, the end of said second lever being bifurcated to embrace the said shaft, a bar pivotally connecting the lower ends of said levers, a link mounted on the second mentioned lever adjacent the lower end thereof, a pair of springs connected to the said link and anchored to the frame and the first mentioned lever respectively on opposite sides of the link for a purpose specified.

In testimony whereof, I afiix my signature hereto.

ALBERT MOEDE.

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