US1668294A - Rail lifter - Google Patents

Description

May 1, 1928. 1,668,294

J. WALTER RAIL LIFTER Filed Feb. 5, 1927 Patented May I, 1928.

UNITED, STATES v rseazn Josnr WA TER, Momma, AUSTRIA.

p BAIL LIFTER.

' Application filed February 5,1927, Serial No. 166,256, and in Austria February 8,1926. J

The subject matter of this invention relates toa lifting appliance, which in the case of rails disposed too far down in the broken stone ballast is pushed underneath I the rail between twoisleepers, and by operating the said appliance the rail or the sleepers is or are lifted out of the broken stone ballast, so that the tamping of the sleepers can be carried out with broken 10. stones.

Fig. 1 illustrates the rail litter in front view in the inoperative position, and Fig. 2 is a top plan view partly in horizontal section of the same. Fig. 3 illustrates the rail lifter in the operative position in which the instantaneous return movement into the initial position can take place.

The rail lifter is provided with a wrought iron frame, consisting of a sole plate P and a bracket K, which is provided with a toothed sector B. A supporting lever H, formed of two cheeks, is pivoted at b to the bracket in the centre of the toothed sector. The supporting lever H is laterally guided by the toothed sector of the bracket. The toothed operating wheel T is located in both checks of the supporting lever H and carries the ratchet wheel Sp, which is operated by the operating lever A by means of the pawl Kb. After the operation by means of the operating lever, the ratchet whee] is locked by a pawl K0, which is hired to the supporting lever. The load is lifted by the supporting lever by actuating the operating lever in the direction of the arrow (Fig. 1),

while no load is raised on moving the operating lever in the opposite direction, so that the ratchet-wheel is inoperative. The end of the operating lever is of'tubular shape 40 in order to pull the same off whenever the desired stroke of the rail lifter has been reached.

During the lifting of the load, the operating lever can move to such an extent only,

which does not impede the free play of the pawl K0, which is subjected to the action of a spring. In the operative position the pawl Kb cooperates with the stop AZ of the pawlbearing L, secured to the supporting lever and thereby prevents the further downward movement of the operating lever and the disengagement of the pawl K0. The rail lifter is provided with an instantaneously operating disengaging device. It the pawl Kb is not in the engaging position (Fig. 3)

and the operating lever is rotated in the direction of the arrow beyond the ordinary rotating angle until the pawl K0 is disengaged, which extends into the track of the projection F, then the toothed drive is quite free for operation and, in consequence of the pressure of the load and of theweight of the supporting lever, can rotate back until reaching the initial position and the supporting lever in its bottommost position rests on the bracket.

I claim: 1

1. Rail lifter comprising in combination a bracket provided with a sole plate and a toothed sector, a single-armed lifting lever pivotally secured to the centre of the toothed sector, lifting means provided at the end of the said lever, and a. pinion engaging the toothed sector of the bracket.

2. Rail lifter comprising in combination a bracket provided with a soleplate and a toothed sector, a single-armed lifting lever pivotally secured to the centre of the toothed sec-tor, lifting means provided at the end of the said lever, and a pinion engaging the toothed. sector of the bracket a toothed wheel firmly connected with the pinion, an oscillating lever, and a pawl on the latter for operating the toothed wheel together with the pinion. V

3. Rail lifter comprising in combination a bracket provided with a sole plate and a toothed sector, a single-armed lifting lever pivotally secured to the centreof the toothed sector, lifting means provided at the end of the said lever, and a pinion engaging the toothed sector of the bracket a toothed wheel firmlyconnected with the pinion, an oscillating lever, a pawl on the latter for operating the toothed wheel together with the pinion, and a locking pawl on the lifting lever which engages the toothed wheel for locking the toothed wheel together with the pinion at any position on the toothed sector. 7

4. Rail lifter comprising in combination a bracket provided with a sole plate and a toothed sector, a single-armed lifting lever pivotally secured to the centre of the toothed sector, lifting means provided at the end of the said lever, and a pinion engaging the toothed sector of the bracket, a toothed wheel'firmly connected with the pinion, an oscillating lever, a feed pawl on the latter for operating the toothed wheel together with the pinion, a stop on the lifting lever for cooperation with the feed pawl for limiting the usual movement of the oscillating lever, and a locking pawl on' the lifting lever which engages the toothed wheel for locking the toothed wheel together with the pinion at any position on the toothed sector.

5. Rail lifter comprising in combination a. bracket provided with a sole plate and a toothed sector a single-armed lifting lever pivotally secured to the centre of the toothed sector, lifting means provided at the end of the said lever, and a pinion engaging the toothed sector of the bracket a toothed wheel firmly connected with the pinion, an oscillatinglever, a feed pawl on the letter foroperating the toothed wheel together with the pinion, a stop on the lifting lever for cooperation with the feed pawl for limiting the usual movement of the oscillating' lover, a locking pawl on the lifting lever which engages the toothed wheel, and a projecting member on the oscillating lever for disengaging the locking pawl sothat the oscillating lever can move through a greater path owing to the disengagement of the feed pawl.

In testimony whereof I atlix my signature.

J OSEF XVALTER.

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