US987455A

US987455A - Hoisting apparatus.

Info

Publication number: US987455A
Application number: US57878110A
Authority: US
Inventors: Fritz Fischer Jr
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-08-24
Filing date: 1910-08-24
Publication date: 1911-03-21
Anticipated expiration: 1928-03-21

Description

'P. FISCHER, JR. HOISTING APPARATUS.

APPLIOATIOH FILED AUG. 24, 1 910.

Patented Mar. 21,1911.

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I HOISTING APPARATUS. APPLICATION FILED AUG. 24, 1910.

987,455., Patented Mar.21,1911.

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FRITZ FISCHER, JR., 0]? SAN ANTONIO, TEXAS.

I-IOISTING APPARATUS.

To all whom it may concern:

Be it known that I, FRITZ FISCHER, Jr., a citizen of the United States, residing at San Antonio, in the county of Bexar and State of Texas, have invented certain new and useful Improvements in Hoisting Apparatus, of which the following is a specification.

This invention relates to hoisting machines and pertains especially to a revoluble apparatus having a derrick or hoisting beam pivoted for swinging over a hoisting drum, and special means for operating the parts.

The object of this invention is to provide in a hoisting machine, a drum frame mounted on a revoluble gear wheel a crane or hoisting derrick pivoted and swingable over such frame, novel and peculiar means for controlling the movement of the crane or derrick, and special means for operating said wheel.

A further object of the invention is to provide in a revoluble crane-derrick certain novel and peculiar construction and arrangement of the various parts as will eX- pedite its being assembled and disassembled, and to furnish means for advantageously operating and controlling the movable parts of the machine.

A still further object of the invention is to provide in one and the same apparatus or machine, means for hoisting and revolving an object or body, means for raising and lowering without revolving, means for hauling and stretching without revolving the hoisting devices, and certain means for erecting or setting poles and posts independent of the other of said means, but all of such various means or devices being embodied in one and the same apparatus.

In this class of machines it is of great advantage to have them adapted to be anchored at various places and in various positions relative to the object or articles to be handled by such machines, and I have provided a machine conveniently adaptable for such purposes. And I also provide for the swinging of the crane-member from one side to the other of a frame during the circular movement of such frame to which said member is pivoted, without interfering with the hoisting mechanism or with the mechanism for revolving and swinging the said member.

In the accompanying drawings forming part of this application :Figure 1 is a side Specification of Letters Patent.

Application. filed August 24, 1910.

Patented Mar. 21, 1911.

Serial No. 578,781.

elevation showing the various positions of the derrick-member in dotted lines. Fig. 2 is a similar view showing the machine reversed. Fig. 3 is an end View with the derrick, chain and ropes removed. Fig. A is a section on the line ww Fig. 3. Fig. 5 is side elevation showing the application of the mvention in setting a pole. Fig. 6 is a perspective view of the gear wheel for mounting the frame. Fig. 7 is a sectional view of the shifting bar and its pinion. Fig. 8 is a detail perspective view showing the pole carrier.

The same reference numerals denote the same parts throughout the several views of the drawings.

While the various applications of the ma-- chine is not shown herein, it is adaptable for various uses, such as raising and setting flag or other poles, pulling and removing fence or other posts, setting or removing piles, and stretching fence wire. These operations are accomplished without the use of the revolving mechanism by simply removing the frame from the gear wheel and anchoring the frame in proper position.

To a suitable support or base 1, is secured a ball-bearing ring 2, by means of peripheral ring projections or keepers 1 The ball-bearings 1 support a revoluble gear wheel 3, and the periphery of such wheel is over-lapped by the projections 1. The upper face of the wheel is provided with two pairs of lugs 41:, to which the legs 5, of an upright frame 6, are bolted. The gear 1 is revolved by means of a pinion 7, hung in :mesh with the wheel by a hanger 8, in which the pinion arbor or shaft 9 is journaled, and is provided with a hand crank 10, for operating the pinion. The keepers 1 overlap the edge of the wheel 1, and are engaged by a rim l of the wheel 8 during the revolution of the wheel so as to keep the wheel in mesh with the pinion 7, without providing a central arbor or shaft for the wheel. It is obvious that the frame may be readily removed from the wheel 1, by simply re-- interference.

meshes with a pinion 15, on a driving shaft 16, which has a hand crank 17, and a balance wheel '16. This mechanism is operated by said crank 17, for raising and lowering the crane, or for swinging the crane. on its pivot. The said mechanism may also be operated for similar purposes by means of a pawl and ratchet lever 18, loosely mounted on a shaft 19, to which is secured a gear 20, having a ratchet wheel 21 on its innerface. Said lever carries a spring controlled pawl 22 for the ratchet 21, and is controlled in its vertical movementby a spiral spring 23, and in its lateral movement by. a spring 24- coiled about the shaft 19. A pinion 25, is loosely mounted to slide and revolve on a rod 26, having its ends working through the frame 6, and Said pinion 25 meshes with the gear 1 1 and with the gear 20; these two gears are coupled and uncoupled by the sliding movement of the pinion 25, which is accomplished by means of a bar 27, one end of which works through one side of the frame 6, and the other end is provided with an ear 26 in which a boss 27 of the pinion 25 is revolubly secured, and a spring 28 on the rod 26. A link or hook 28 extends from the shaft 16 to the bar 27 and forms a guide for the latter in its horizontal movement. By sliding the bar outwardly its ear carries the pinion out of mesh with the gears 1a and 20, and the bar is held in this position by a spring controlled keeper 18 IVith the gearing in this position, the'chain drum 11 is operated only through the

shafts

11, and 16, by turning the hand crank 17, but when it is desired to operate the said drum by the ratchet-lever 18, the bar 27 is released and the spring 28 forces the pinion 25 to mesh with the

gears

14 and 20. Such hand operation is desirable for short adjustments of the crane.

The derrick or crane 13 is composed of two

members

29 and 30, which diverge from their central joining bolt 29 to the sides of the frame 6, where they are pivoted to said frame at 30, whereby an opening or space is formed between said members so that the crane may be swung on its pivots over the frame 6 and its mechanism without The outer end of the crane members carry a yoke 31, having trunnions 32 working in said ends, and said yoke has a loop 33, for holding one end of a pole or log 31 during the raising or lowering of the crane as shown in Fig. 5. The yoke is provided with an eye 34: for attaching the crane chain 32, and as shown in Fig. 5, the frame is anchored by guy chains 33 In order to raise or lower an object or load after the crane has been fixed or adjusted in a desired position, a block and tackle 35, is hooked to the yoke-eye 3 1, and its rope 36 works over a guide sheave 37,

(Fig. 5) and over a loose sheave 38 on the shaft 11, to a Windlass 39, on a shaft 40, journaled in the lower part of the frame 6, and having a hand crank 41, a pinion 40, meshing with the gear 20, and a ratchet wheel 42 controlled by a pawl 13. .Asshown in Fig. 5, the pole is held in an upright position by the crane so as to be moved vertically by the block and tackle. Piles, fence posts and the like may be placed and removed by removing the crane from the frame 6 and attaching the chain 32 to such post, and the frame, its chain and drum may be used with or without the pawl andratchet mechanism for hauling or pulling, and for stretching wire fencing.

It will be seen that the frame 6, with the crane may be revolved before, after and during the raising or lowering of the crane, and

that the block and tackle may be operated at the same time or independent of the circular and swinging movements of the crane. It is obvious that the various parts of the apparatus may be assembled and disassembled in part or in whole in a most expeditious manner, and that the apparatus may be arranged for work of various character within the capacity of the apparatus.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is 1. The combination, with a hoisting machine, and supporting base; of means for revolving the machine on said base, comprising a .gear wheel having a rim to which the frame of the machine is attached, a plurality of keepers attached to the base and engaging the rim for centralizing the wheel, and a pinion for revolving the wheel under the keepers.

2. The combination, with a hoisting machine, of a plurality of parallel shafts, a gear on each shaft, a drum on each of two of said shafts, and means for transmitting motion from one to the other of the drumshafts comprising a rod, a spring controlled bar slidable on the rod, and a pinion mounted on the bar and adapted to be slid into and out of mesh with the drum-shaft gears.

3. In a hoisting apparatus, the combination, with a frame, a crane pivoted to the frame, and swingable over it, and a gear wheel upon which the frame is mounted for revolving the frame and the crane, of two sets of gearing having shafts journaled in the frame for swinging the crane, and means for coupling and uncoupling the sets of gearing comprising a spring controlled bar, and a pinion carried by the bar which slides the pinion in and out of gear.

4. In a hoisting apparatus, the combination, with a frame, and a crane pivoted to the frame, of a yoke carried by the free end of the crane,'a pole carrying loop projecting from the yoke, a block and tackle at- .tached to the yoke, a chain operating drum for the crane, a Windlass for operating the tackle rope independent of the drum movement, means for operating drum, and means for operating the Windlass.

5. In an apparatus for the purposes described, the combination, with a frame, a chain operating drum, a driven shaft journaled in the frame and having the drum mounted thereon, a gear on the said shaft, :1 driving shaft journaled in the frame, a pinion on the driving shaft meshing with said gear wheel, a ratchet shaft journaled in the frame, and a ratchet device carried by the ratchet shaft, of a rod interposed between the said driven shaft and the ratchet shaft, a pinion slidable on the rod, a bar having an ear in which this pinion is journaled for sliding the pinion out of mesh with the driving shaft gear and with the ratchet gear, and a spring upon the said rod for sliding this pinion into mesh with these gears.

6. The combination, with a derrick frame, of means for revolving it, comprising a gear having said frame mounted thereon, a ballbearing ring upon which the gear is revolved, and having projecting flanges which over-lap the periphery of the gear, and a hand operated pinion meshing with said gear for revolving it.

7. The combination, with a frame, a crane pivoted to the frame, and means carried by the frame for raising and lowering the crane, of a yoke having trunnions working in the free end of the crane, and a pole holding loop projecting from the yoke.

In witness whereof I hereunto set my hand in the presence of two witnesses.

FRITZ FISCHER, JR.

Witnesses: 7

AD. REAL, E. ODEWILE.

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