US1099405A - Lifting-jack. - Google Patents

Description

A. C. STEIN.

LIFTING JACK.

APPLIOATION FILBD JUNE20,1913.

1,099,405. Patented June 9, 1914.

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WITNESSES: 5NVENTOR. IN

770, ALVA C TE ALVA C. STEIN, OF WORTHINGTON, OHIO.

LIFTING-JACK.

Speciflcation of Letters Patent.

Application filed .Tune-20, 1913.

Serial No. 774,?63.

To aZ whO'mi it may concern: Be it known that I, ALVA C. STEIN, a ctzen of the United States, residing at W0rth-` as used in connection'with street railways and that type ofear's, it will of .course be understood that the invention is equally applicable for use in connection with other vehicles, whether the motive power is carried by the' vehicle, or applied from an extraneous source. i

The primar object of th'e invention, as will be readi y understood, is to provide each vehele with an efficient means operated from a self-contained source, for the rapid and `facile restoration tothe` railway track of a derailed car.

The invention consists in certain novel combinations and arrangements of part, carried by the car and normally out of operation, by which the derailed car may be lifted vertically from the grourd and then shifted, laterally into alinement with the rails, and lowered directly onto the rails, and these Operations are accomplished through devices aetuated from motive power carried by the car.

In theaccompanying drawings ,I have illustrated one complete physical embodiment of my invention applied to an electric ear and constructe'd according to the best mode I have so far devised for the practical application of the principles of the invention.

.In the drawingsz--Figure-l is a cross section of a car (conventionalized) showing in side elevation my invention applied thereto, the ear in proper position on the rails, and the lifting jack out of commission. Fig. 2

` is a plan view of the. underside of the working parts of the device, the motor, and the .beses of the jacks being omitted for convenience of illustraton Fig. .3 is an enlarged detail view snowmg the underside of a portion of Fig. 2, with a portion of the -motor illustratedandits connected gearing.

Fig. 4 is a side elevation of a frament of a street railway car to illustrate t e position Patented June 9, 1914.

of the lifting jack between the end of the i car and its traction wheel. Fi 5 illustrates a derailed car, lifted from the ground by the ack and ready to be shifted laterally. Fig. 6 llustrates the same car shifted to the lateral limit ot' the jack; to roperly replace the car it must again be lowered, the jacks shifted, the car again raised, and' then shifted until the wheels aline with the rails. Fig. 7 is an enlarged transverse section, showing a shifting roller, its support and its track. Fig. 8 is 'a similar View showing the fixed nut. Fig. 9 is an enlarged detal 'of the1 vertical adjusting mechanism of the ac In the preferred embodiment of my invention I have illustrated the 'lifting jack in connection with an electrie car A having the usual wheels B and axle C, and the wheels are adapted to run in the rooved-rails D of suitable 'or usual type. hile only one lifting jack is illustrated, at the end of a car, it will be understood that a car may be equippcd with a lifting jack at each end if desired, and the location of the jack-may also be varied to suit circumstances, construction of cars, framin etc.

In equipping cars wit ,my invention '1 utilize a metallic plate 1 which is rigdly Secured to the underside of the car and extends transversely thereof. The plate may be bolted to the underframing or beams of the car, and is held immovable in relation thereto. A series of perforated ears 2 are located at each side of the plate 1. These ears are perforated and at their lower ends formed with lugs 3, the whole being integral with the plate 1. The perforatedears are arranged n pairs and are designed to afl'ord a hearing for the pintles fi: of a series of rollers 5. Approximately midway its length the late is provided with an inte al lug 6, per orated and threaded, and o suflicient size and strength to perform the function of a fixed nut in connection 'with a screw r acting with the luge 3 of the plate'to confie and guide the, movement of the parte.

The fixed nut 6 on the plate 1 projects through a center slot 11 in the beam and this slot is long enough to permit necessary movement of the parts e. the beam and plate with relation to each other. When the lifting jack is in operative position the beam 8 is Suspended on a pair of pedestals 12, 13, each of which is provided with a screw bar 14,15. These screw bars 'are moved through the medium of gear or worm wheels 16 and 17 which are located between the ends of the beam and a perforated hearing bracket 18, 18, integral with the beam and'located directly below the perforated end thereof, so that the worm wheels are confined and revolve between the end of the beam and one of the brackets. The worm gears may be revolved independently, and each one has an actuating bar as 19 and 20 with a worm 21 and 22, the worm 21 engaging the wheel 16 and worm 22 engaging the wheel 17. These bars are supported at the underside of the beam in hearing lugs 23 and each bar is equipped with a driving gear as 24:, 25. In Fig. 3 it will be seen that the screw-bar 7 also has a gear wheel, 26, and' these threewheels 24., 25, and 26 are located in position to mesh with along gear 27 in the driving shaft 28 of the motor 29. The motor 29 is Secured at the underside of the beam, and isthus in'position to supply motive power for operating the devices to lift the car vertically and also to Shift it, after being lifted to proper' height, laterally. Shifting rods 30, 31, 32, are provided for shifting the several gear wheels into or out of mesh with the long gear 'on the motor shaft, and for convenience these rods may be operated from the same-side of the car. In Fig. 3 it will be seen that the worm wheels on the vertical screw bars maybe actuated simultaneously, or either of them may be actuated 'inde- V pendent of the other. If required the vertical screw bars may extend up through open- 'ings in the car floor, in a location where they will not interfere with other arrangements of parts of the car.

tor '29 and the gears 24, 25 are moved to engage motor gear 27 in order to lower the pedestals of the jacks. If the surface is irregular or uneven, one of the j acks may be` lowered below the other. When the pedestals are in proper supporting position, the

motor is reversed, and the car is raised or lifted by 'the described connections sufllciently to permit the bodily shifting of the car. The two gears 24: and 25 are now Shifted out of mesh and the gear 26 is shifted into engagement with the gear 27. The motor now `turns the screw bar 7 and by its engagement with the threaded, fixed nut 6 of the plate 1, the car is shifted until it reaches a position with the wheels over the rails. The lateral Shift is then cut out, and the lowering devices are brought into operation, the motor and gear co-nnections being again utilized to lower the car to the tracks. 'After the car is replaced, the jack pedestals are 'raised into normal position, as shown.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is The combination with a car and permanently fixed plate extending from side to side thereof and having an integral nut, perforated ears, rollers in the ears and guide lugs on the ears, of a beam supporting the plate through the rollers, a screw bar mounted on the beam -engaging said nut, side flanges on the beam engaging 'said lugs, means for lifting the beam and plate, and a motor operatively connected with the screw bar to Shift the car laterally relative to `the beam.

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

ALVA C. STEIN. Witnesses:

C. M. SHIGLEY, Gr. A. WEAVER.

copies of this patent may be obtained for five cents each, by addressng the Commissioner of Patents;

i Washington, D. G."

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