US62175A - photo-litho - Google Patents

Description

@uiten taten @anni @Hita ELI ZIMERMAN, OF PAMELIV FUR CORNERS, NEW YORK. Laim Patent N0. 62,175, time remar?, 19, 1867.

IMPROVMENT IN LIPTING-JAGKS.

TO WHOM I'I MAY CON CERN:

:Be it known that I, ELI ZIMERMAN, of Pamelia Four Corners, in thecounty of Jeierson, and State of New York, have invented certain new and useful Improvements in Jacks-for Raising Fences and other purposes; and I hereby declare the following to be a full, clear, and exact description of the same, reference heilig had to the accompanying drawings, in whioh- Figure 1 represents a transverse vertical section of a lifting-jack construct-ed in accordance with my invention; and n Figure 2 is arear view of the same.

The jack constructed in accordance\\'ith my invention may be used as a wagon-jack, or for other lifting I purposes; but the special object I have in view in these improvements is to facilitate the repairing of zigzag or Virginia rail fences when the angles of the fences, z'. e., the points ofjunction of the rai-ls, become displaced by the settling of Athe supports or abutmcnts uponV which the rails rest. The support-spare usually boulde'rs or rocks, which settle in the earth, or are otherwise displaced by the action of the frost, rain, Ste., and the fence in this manner will soon'become undermined and destroyed, unless the evil is promptly remedied, and the panels of the .fence reset. The operation of raising `and repairing fences which have thus become damaged is very laborious when ordinary hand labor is employed, with the assistance of such aids only as arenusually found on farms; a nd it is desirable to employ some means by which the manual labor may be lessened, and theV time consumed in the work shortened. Y p i These results I have accomplished by the employment of the lifting device represented in the drawings. It is composed of two standards or uprights B B, erected upon the foot A, `and provided with ways, in which the sliding-bar I moves, the bar being provided with friction-rollers b. To the rea-r face of the sliding-bar is attached a ratchet, a, with which a pawl or spring latch, c, is engaged; and by these means the sliding-bar and its attachments are held in any position to which they may be raised, The spring pawl is mounted on a pin secured to the plate F, to the opposite side of which the lever E is hinged by means of links'd. The slidingbar I is recessed or grooved in front to receive the hook K, which swings ou a pin,f, mounted in the upper part of the sliding-bar, and transversely to ,the grooveA formed in the same. It is by means of this hook that the lifting of the fence'ris accomplished; and in order to allow of the fence being raised higher than the limited range of the sliding-bar, a longitudinal slot, g, is formed in the hook, in the rear side of which a series of oblique notches, 7i lil h2, are out, forming sockets or bearings, in which the pin j' is received. By these means the hook K may be suspended at any desired height from the bottom of the sliding-bar.` Ii', for instance, the fence has been raised to such a height that the hook, when suspended from the notch h, cannotfbe any longer used, the foot of the hook is carried out from the standards, so as to disengage the pin f from the notch h, and it is then moved up until one of the notches 71.1 catches on the pin, as shown in red lines, g. 1. The hook is thus considerably shortened; and, in proportion as it approaches the top of the slidingbar, its capacity to raise to a greater height the fence or other thing to be lifted increases.

rIhe jack is operated as follows: In fences of the kind above mention/ed the ends of the rails which compose the panels, and which areA laid over one another at each angle ofthe fence, are inclined to separate or move outwardly and away from each other, from the causes hereinbefore alluded to. In order to move them back to their placesA the jack is placed on the exterior of one of the angles or salients of the fence, and the hook K, which is turned towards the fence, is caught under the bottom rail. The foot A is then moved baokany suitable distance from the fence, say about eight or ten inches, and the jack is inclined forward so that the upper end of the slidingbar I will rest against the fence. The short en d of the lever E is then placed in one of the teeth or cogs of the ratchet, and4 by pressing down the long en d of the lever the sliding-bar with its hook will be raised, carrying with them the fence, which is held up by the hook. As the upper part of the jack is inclined `towards the fence, its centre of gravity isiof cor-irse thrown in the same direction, so that thetendency of the jack, when the fence is lifted, will be to force it back, and to move the rails to their proper places; and the fence will, therefore, strike the ground at a distance from where it was moved proportionate to the height to which it was raised. This operation moves the two panels which form the angle of the fence; and, as a consequence, from its construction, the adjoining angles of the fence are moved the same, or nearly the same, distance as the angle to which the jack is immediately applied. In raising a fence for the purpose only of placing-under it the supports, the jack will be in a vertical position; and, as above explained, if it be desired to raisethe fence higher than can be done when the pin f is in the notch h, the hook is moved'up til the -pin catches in one of the notches h1, which are formed along the slot'g at suclrintervals as desired. v

Having described my invention, and the manner in which the same is or may be carried into effect, what I claim, and desire' to secure by Letters Patent, lis'- I 1. In a. jack for raising fences', and.v for other purposes, I claim the swinging lifting-hook, arranged so as to be adjusted to different heights on and relatively to the sliding-har, by which it is actuated, substantially as set forth. v

2. The combination with the sliding ratchet-bar, theY actuating level', and the spring latch or'pawl, of a slottedlifting-hook, suspended from said bar and adjustable'thereon, substantially as shown and described.

In testimony whereof I have signed my name to this speciication before twQ subscribing witnesses.

` ELI ZIMERMAN.

. Witnesses:

T. BAKER, JNO.' M. SIGOURNEY.

Images