US831371A - Power device. - Google Patents

Description

PATENTED SEPT. 18, 1906.

N. H. NELSON.

POWER DEVICE.

APPLICATION FILED Nov. 11, 1905.

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POWER DEVICE.

APPLICATION FILED NOV.11. 1905.

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- N. H. NELSON.

POWER DEVICE. APPLICATION FILED NOV. 11, 1905.

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UNITED STATES PATENT OFFICE.

POWER DEVICE.

Specification of Letters Patent.

Patented Sept. 18, 1906.

Application filed November 11, 1905. Serial No, 286,822.

To all whom it TIMI/y concern:

Be it known that I, NELs H. NELsoN, a citizen of the United States, residing at Pennock, in the county of Kandiyohi and State of Minnesota, have invented certain new and useful Improvements in Power Devices; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My present invention has for its especial object to provide an improved power device for hoisting-machines of the general character disclosed and claimed in my prior United States Letters Patent identified as follows: No. 799,077, Hay-elevator, No. 799,078, Grain-elevating device, and No. 799,079, Device for conveying and hoisting various materials, all issued of date September 12, 1905. The device is, however, capable of more general use.

The present invention consists of the novel devices and combinations of devices hereinafter described, and defined in the claims.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views.

Figure 1 is a view in side elevation, show ing the improved power device and showing the same attached to a hoisting device. Fig. 2 is a plan view of the improved power device, the hoisting device not being shown. Fig. 3 is an enlarged plan view of the principal parts of the power device, and Fig. 4 is a vertical section taken approximately on the line 90 x of Fig. 3.

The numeral 1 indicates a triangular baseframe, which is provided with a long reachpole 2. The transverse portion of the frame 1 is preferably provided with trunnions 3, to which wheels (not shown) may be applied for the purpose of transporting the device from one place to another.

The triangular frame 1 is preferably a casting, and at the central transverse portion thereof is a hollow upwardly-projecting bearing-sleeve 4. A Windlass-drum 5 is loosely journaled on the said sleeve, and a'drivinghead 6 is also loosely journaled on said sleeve and rests upon the hub of said drum. Along sweep-lever 7 is secured to the said drivinghead 6 and a whiflietree 8 is attached to the free end of said lever. The Whifiietree 8 of course makes it possible to hitch a horse to the free end of the sweeplever, so that the device may be used as a horse-power mechanism. The driving -head 6 is provided with a radially-extended bifurcated arm 9, through the free end of which works a coupling-plunger 10. The inner end. of the coupling-plunger 10 is attached to one arm of the bell-crank 11, pivoted to the inner portion of said arm. 9. The inner end of the bell-crank 11 overlies the axial passage through the sleeve 4 and is attached to a vertical rod 12,

- that is passed downward through said sleeve and is connected to one end of an intermediate lever 13, pivoted to a central leg 1 of the base-frame 1. The other end of said lever 13 is connected to a bell-crank 14, mounted on the base-frame 1, which is in turn connected by a rod 15 to an operatinglever 16, pivoted to the reach-pole 2. The lever 16 cooperates with a notched latcharch 17, also applied to said reach-pole 2. The outer end of the coupling-plunger 10 is adapted to be moved outward into engagement with any oneof several circumferentially-spaced perforations or seats 18, formed in the upwardly-projecting flange of the drum 5. For action on the peripheral portion of the lower flange of the drum 5 is a brake-shoe 19, carried by a bell-crank lever 20, pivoted to the transverse portion of the base-frame 1. The inner arm of the bellcrank 20 is connected by a long rod 21 to a footlever 22, pivoted to the reach-pole 2 in the vicinity of the lever 16.

The numeral 23 indicates a long upright, which, as shown, is detachably secured to the outer end of the pole 2 by means of a coupling 24 and brace-bars 25. On the upper end of the upright 23 is a head 26, upon which is mounted a pair of guide-sheaves 27. A cable or rope 28 is attached at one end to the head 26, is looped downward to support a sheave-equipped hook 29, is then passed over the two guide-sheaves 27, is then passed under the guide-sheave 30, mounted in a bracket 31 on the lower end of the upright 23, and is then wrapped about and secured to the Windlass-drum 5.

The operation of the device is probably obvious, but will be briefly stated as follows: The Windlass -drum 5 may of course be rotated by the horse hitched to the end of the sweep-lever 7, and when the said drum is rotated in the direction of the arrow marked on Fig. 2 the cable 28 will be wound upon said drum, and any load attached to the hook 29 will be raised. When it is desired to lower a load rapidly or to thus lower an empty carof the driving-head 16.

rier, the lever 16 should be thrown toward the right with respect to Fig. 1, thereby, through the intermediate connections, pulling the coupling-plunger inward and uncoupling the Windlass-drum 5 from the arm 9 As is evident,when the windlass-drum is thus released, the load will drop rapidly unless the free rotation of said drum be impeded. The operator, with his foot on the lever 22, shoe 19 to the rim of the drum under any desired pressure and may thereby control the descent of the load. The horse may of course stand still until a load is again to be lifted, to accomplish which, of course, the drum 5 must be again coupled to the drivinghead 6 by means of the coupling-plunger 10.

,In some cases the so-called driving-head may be connected to and driven by an engine or even by a windmill.

What I claim, and desire to secure by Letters Patent of the United States, is as follows:

1. The combinationwith a triangular baseframe, having at two of its angles projecting trunnions on which wheels may be mounted,

may apply the brakeand having a pole secured to its third angle, of a windlassdrum and drumactuating means mounted on said triangular base-support, and a cable connected to said drum, substantially as described.

2. The combination with a base-support having a rigidly-secured upwardly-extending bearing-sleeve, of a Windlass-drum mounted on said bearing-sleeve, a cable connected to said drum, a driving-head also rotatively mounted on said sleeve, said head having a projecting arm, and said drum having a perforated flange adjacent to the free end of said arm, a con ling-plunger working through the free end 0 the arm of said driving-head and engageable with the perforated flange of said drum, and a plunger-actuating connection extended through said hollow bearing-sleeve, substantially as described.

In testimony whereof I affiX my signature in presence of two witnesses.

NELS H. NELSON.

Witnesses: V

E. L. THORPER, A. J. Moms.

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