US590840A

US590840A - Lifting device

Info

Publication number: US590840A
Authority: US
Publication date: 1897-09-28
Anticipated expiration: 1914-09-28

Description

(No Model.) 2 ShetsSheet 1.

T. B. JACHIMIAK 85 J. KENDZIERS KI. LIPTING DEVICE.

No. 590,840.- Patented Sept. 28, 1897 2a 27 lmfllllinm mum HI I I ing is a description, reference being had to- UNITED STATES PATENT OFFIC TOMASE B. JACHIMIAK AND JOSEF KENDZIERSKI, OF SOBIESKI, WISCONSIN.

LIFTING DEVICE.

SPECIFICATION forming part ofLetters Patent No. 590,840, dated September 28, 1897. Application filed April 10, 1897. Serial No. 631,527. (No model.)

To all whom/it may (VHLOUZ'IL: J

Be it known that we, TOMASE B. J AOHIMIAK and J OSEF KENDZIERSKI, of Sobieski, in the county of Oconto and State of Wisconsin, have invented a new and useful Improvement in Lifting Devices, of which the followthe accompanying drawings, which are a part of this specification.

Our invention has relation to improvements in lifting devices.

The invention is particularly adapted for use as a stump puller or extractor. In fact, it combines, essentially, the features of a combined stump-extractor and lifting-jack.

The primary object had in view is to secure by a simple combination and arrangement of parts the maximum power; and with this end in view the invention consists of the devices and parts, or their equivalents, as hereinafter more fully set forth. 1

In the accompanying drawings, Figure 1 is a front elevation of the complete machine. Fig. 2 is a View at right angles to Fig. 1. Fig. 3 is a vertical longitudinal sectional View of the machine. Fig. 4 is a vertical section of the upper portion of the machine, taken on a plane at right angles to the section of Fig. 3; and Fig. 5 is a plan View with the upper portion of the casing in section.

The frame of the machine advisably consists of a base-piece 6 and inclined frontand rear standards '7 '7, extending upwardly from the base-piece and connected at their upper ends by a connecting-piece 8. Surmounting this connecting-piece 8 is a casing 9, preferably rectangular inform.

Journaled in opposite end pieces of the casing 9 is a worm-shaft 10, said shaft being journaled at one end in an elongated opening 11. through this opening to the outside of the casing passes through a pivoted lever 12, the extremity of the shaft being provided with an operating-handle 13. The outer end of the lever is provided with a slot 14:, which is adapted to be normally engaged by an inwardly-projecting lug 15 of a'springarm 16, the lower end of said spring-arm being secured to the end piece of the casing.

The numeral 17 indicates a Worm-wheel which is located below the wormshaft and The end of the shaft which projects between two

longitudinal beams

18 and 19. -When the inwardly-projecting lug 15 of the spring-arm 16 is engaging the slot 14 of the lever 12, the worm-shaft is then in engagement with the worm-wheel. If, however, the spring-arm is pulled outwardly, so. as to release its lug from engagement with the slot of thelever, the worm-shaft is free to be raised in the elongated opening 11, so as to be brought out of engagement with the wormwheel. The shaftmay be allowed to remain in this position by permitting the spring-arm to spring back so that its lug 15 will engage under the lever 12.

Arranged between the intermediate beam 19 and another side beam 20 is a shrouded pinion 21, consisting of the outer heads'and intermediate head and the connecting bars or spindles. The outer heads of this pinion are formed with projecting journals, one of which having its bearing in the beam 20 and the other extending through the intermediate beam 19 and to the beam 18 and forming the axis for the Worm-wheel 17, said wheel being mounted fast thereon. Also mounted between the

beams

19 and 20 in advance of theshrouded pinion 21 is a lantern-wheel 22, the journals of said Wheel having their bearings in the

beams

19 and 20. The end heads of this lantern-wheel are of sufficient width to enable cog-Wheels 23 23 to be mounted thereon, said cog-Wheels being advisably keyed thereto. The teeth of these cog-wheels mesh with the respective bars or spindles of the shrouded pinion 21 and derive rotation therefrom, which rotation is of course imparted to the lantern-Wheel 22.

Extending down from the under side of the casing 9, atone end thereof, is a boxing 24. This boxing extends downwardly for a desired distance, preferably to the basepiece 6. Within this boxing is adapted to be vertically reciprocated a rack-bar 25, the teeth of the rack being formed on the inner edgeof the bar. The upper end of the rackbar passes entirely through the upper casing 9 and through an opening in a removable top or cover 26. with a hinged catch- 27 the outer leaf of which projects beyond the cover and is provided with an opening through which the upper end of the spring-arm may pass. The

This top or cover is provided spring-arm therefore serves to hold the cover normally in place. The upper extremity of the rack-bar which projects above the cover is provided with a removable and preferably revoluble head-piece 28, while the lower end of the rack-bar is' formed. with a projecting foot 29. in an elongated slot 30 in the outer side of the boxing 24:. This slot therefore permits the rack-bar to be vertically reciprocated. The rack-bar is so positioned that it passes between the cog-wheels 23 28, so that the teeth of the rack may mesh with the connecting bars or spindles of the lantern-wheel 22. It will be noticed that the journal of the shrouded pinion 21, which forms the axis of the worm-wheel 17, extends out through the front piece of the casing 9 and has keyed thereon a ratchet-wheel 31, which is adapted to be engaged by a pivoted dog In operation the foot of the rack-bar is made to engage with the object to be raised. In case, however, it is desired to pull the stump of a tree from the ground this foot is preferably anchored to the stump by means of a chain wrapped around the stump and looped over the foot-piece. The operatinghandle is now turned, and this through the described gearing, consisting of the wormshaft, worm-wheel, shrouded pinion, and cogwheels, will cause an upward movement of the rack-bar through the engagement of the bars or spindles of the wheel 22 with the teeth of said rack-bar. It is obvious that by this arrangement of gearing a most powerful leverage can be secured.

By the provision of the head-piece 28 at the upper end of the rack-bar the device can be conveniently used as alifting-jack for elevating vehicle-axles and the like. The machine when so used is placed in such position that the body to be raised rests 011 the headpiece 28. After raisinga body to the desired height, if it is then desired to discontinue using the machine, the outer leaf of the hingecatch 27 is released from engagement with the upper end of the spring-arm 1o. Said spring-arm is then pulled outwardly, so as to permit the raising of the lever 12, and the consequent raising of the worm-shaft out of engagement with the worm-wheel, the lever and shaft being held in this raised engagement by permitting the spring-arm to spring back, so that its projecting lug will engage under the lever. to descend rapidly to its normal position. If mechanism were not provided for raising the worm-shaft out of engagement with the wormwheel, it is obvious that the descent of the rack-bar would be very slow and would have to be accomplished by turning the crankhandle. The ratchet-wheel 31 and engaging dog 32 serve to prevent reverse rotation of the axis of the worm-wheel, and thereby have the effect of holding the rack-bar to its ad- This foot passes through and works- The rack-bar is now free justed position. W'hcn it is desired that the rack-bar should descend, the dog of course is released from engagement with the ratchetwheel.

What we claim as our invention is- 1. The combination, of a frame, a lever pivoted to the outer face of one of the side pieces of the frame, a worm-wheel within the casing, a worm-shaft having one end journaled in the frame, and its opposite end passing through an elongated slot in the frame and journaled in the pivoted lever, and an inwardly-springing spring-arm provided with an inwardly-extending lug, said lug adapted normally to engage the lever so as to maintain said lever in a position to hold the wormshaft in engagement with the worm-wheel, and said lug when released from the lever adapted to permit said lever to be turned so as to disengage the worm-shaft from the wormwheel, the partsbeing held in disengaged position by permitting the inwardly-extending lug of the spring-arm to engage the lever at a point other than its first point of engagement.

2. The combination of a casing, alever pivoted to the outer side of said casing, a wormwheel within the casing, a worm-shaft journaled in the casing, said shaft extending through an elongated opening in the casing and through an opening in the lever, a springarm adapted to engage the lever so as to hold the worm-shaft in engagement with the wormwheel, and when disengaged from the lever to permit of the raising of, and to support, the shaft out of mesh with the worm-wheel, a cover for the casing, and a catch secured to the cover and projecting therefrom,said catch provided with an opening through which the upper end of the spring-arm is adapted to pass.

3. The combination, of a frame, a wormshaft mounted therein and provided on its outer end with an operating-handle, a wormwheel adapted to be engaged by the wormshaft, a shrouded pinion on a common axis with the worm-wheel, a shaft having a lantern-wheel mounted thereon, the end heads of said wheel formed or provided with cogs therearound adapted to mesh with the bars or spindles of the shrouded pinion,andara ckbar, so arranged as to adapt its teeth to engage with the bars or spindles of the lanternwheel, and to be moved vertically thereby.

In testimony whereof we aflix our signatures in presence of two witnesses.

TOMASE B. JAGHIMIAK. JOSEF KENDZIERSKI.

\Vitnesses to Jachimiaks signature:

.1 AN WoJoIEoHowsKI, J. J. HOF.

W'itnesses to'Kendzierskis signature:

EDW. KoLDRoWIcz, FRANK PEPLINsKI.