US1272398A - Car-mover. - Google Patents

Description

W. A. DORSEY.

CAR MOVER.

APPLICATION .FILED MYI8.1914' HENEWED DEC. 12.1917.

L',4 v Patentemmy 16,1918.

Z 10 17 A lz ii L UNTTED STATES PATENT FFTCF.

WALTER A. DORSEY, OF COLUMBUS, OHIO, ASSIGNOR TO THE BONNEY-FIOYD COMPANY, OF COLUMBUS, OHIO, A CORPORATION OF OHIO.

CAR-MOVER.

Application led May 18, 1914, Serial No. 839.417.

To all whom t may concern:

Be it known that I, binren A. DoRsEY, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Car-Viovers,

of which the following is a specification, reference being had therein to the accompanying drawing.

The invention relates especially to car movers of the class in which each has two car wheel engaging elements and the principal object of the invention is toy provide in a car mover of this class improved means for moving one of these elements with respect to the otherV and with respect to the rail. A further object is to provide an improved means for mounting and guiding the movable elements above referred to. A still further object is to provide an improved fulcrum for engaging the rail. Other objects will be apparent from the following specification andA claims.

Of the drawings which represent the preferred embodiment of the invention Figure l is a side view partly in section showing a car mover embodying' my invention in use.V

Fig. 2 is a view similar to Fig. 1 showing the car mover in a diiferent position.y

Fig. 3 is a plan view.

Fig. 4 is a fragmentary sectional view taken on an enlarged scale along the line 4 4 of Fig. 2.

Referring to the drawings 1 represents a track rail and 2 a wheel of a car to be moved along the track.

3 is a pinch bar having the head 4 which is provided with a curved surface adapted to engage the surface of the car wheel. Formed integrally with the head 4 are two parallel rearward extending arms 6 6. The pinch bar is 4provided intermediate its ends with a transverse fulcrum piece 7 which is set into a suitably shaped transverse slot in the rear part of the head. The fulcrum piece 7 is provided with a sharp corneiwhich projects downward from the slot to engage the track rail, and preferably the fulcrum is square in cross section and fits into a square slot in the head. Near the center the fulcrum piece is turned to be circular in cross section, as clearly indicated at 8 in Fig. 4. This construction provides two rail engaging points near the Specification of Letters Patent.

Patented July 16, 1918.

Renewed December 12, 1917. Serial No. 206,854.

edges of the rail, thus providing a firm grip on the rail which is frequently so worn as to have a rounded upper surface, as indicated in Fig. 4.

Formed in the upper part of the head 4 is a recess 9 which is bounded at its sides by the forward parts of the two arms 6 6. This recess is provided with a smoothly curved forward surface forming a pivotal socket for the forward sharply curved end of a thrust lever 10. This lever 10 has a flat upper surface 11 adapted to be forced against the surface of the wheel 2. The lever 10 has an arcuate slot 12 concentric with the pivotal axis at the front end of the lever. Through this slot there extends a transverse retaining pin 13 mounted at its ends in ears formed on the arms 6 6.

Pivotally connected between the rear ends of the arms 6 6 by means of the pivot bolt 14 is an operating lever 15. This lever is formed of metal at its lower forward part,

but the rear upper part preferably, though not necessarily, is formed of wood.V The .forward lower end of the lever 15 is provided with the curved surface 16 adapted to engage the downward convexed surface 17 on the thrust lever 10. l/Vhen the lever 15 is swung relatively to the pinch bar about the axis at 14 the surface 16 will engage the surface 17 with a substantially rolling contact and force the thrust lever 10 upward `about the axis at its forward end. The upward movement of the thrust lever 10 and of the forward end of the lever 15 is limited by the engagement of the retaining pin 13 with the lower end of the slot 12. i

vPreferably for the sake of lightness the forward part of the lever 15 is formed with a central vertical web 15"1 and a top ange 15b4 projecting on both sides from the central web 15a. For engaging the track there is provided a 'small supplemental web 15 at the extreme forward end of the lever. Formed on the arms 6 6 are inward projecting lugs (5 66L which engage the flange 15b and thus limit the movement of the forward end of the lever 15 downward with respect to the pinch bar.

From the foregoing description the operation of my improved car mover will be readily understood. The operator first places the car mover in position, as indicated in Fig. 1, with the surfaces 5 and 11 engaging the car wheel, the thrust lever 10 being in its lower position as indicated. The @sharp corners of the fpulcrum piece 7 engage 'the 'track and prevent the device from moving therealong. The operator then pushes down at the rear outer end mof the lever 15. The pressure on the operating lever is transmitted tothe thrustlever to pushit upi'vard and thus 'force Ithe wheel forward. 1 It will be noted that at starting the point of contact between the surfaces 16 and 17 vis relatively. nearY the vaxis at 14; and relatively remote.l from the fulcruin foflever 1'O,.thus Vgiving theoperatOr a` relatively powerful leverage. The effective leverage decreases L'as the rear .endg of the hand lever 15 is 'pushed downward, 'because ofthe rolling `contact between surfaces 16 land 17,- but this decrease does not come until theU wheel has been started and less force `is required. By reason of this constructionthe amount of force which is applied is approximately proportioned to the amount 'of force rcquired. I K

v ,Thejfdownward movement of the lever necessarily 'causes "a powerful down lthrust on `thefpivotbolt 14. Use i'sma'd'e of this down thrust'a's it is transmitted toforcethe front end of the pinchhar upward against tlief'wheell surface. In this way anmextremely powerful lcoinl'jound. action upon the 'wheel is secured.

- Even after thejpushllever l'Owha's reached the, extreme limit fof its movement the downward movement .A of the 'lever '15 can be continued, the vforward vend of the "headA stilltbeinfg 'available for 'iiiovin'gfthe wheel. It will be observed th'at lthe wheel contact- 'king' surface 5 is curved sojasto 4provide Va substantially rolling contact with the wheel S'lirfae. As to ythe. detailsof form Yand mounting off'the thrust lever there can be consideable variatioinfbutl the construction which If Ahave shown'ha's many advantages.l The provision of direct pivotalcontact,between the thrust lever and the pinchbar. 'not ,only enables. the, .de/rite t0 be cheaply ,manufactured-,but also "makes it much stronger .than it. 'would Y be if use. .were mede .Jef a. .Separate pivot'pin "which vmight be readily sheared or broken. The retaining pin 13 serves as a convenient. means for vholding the :thrust leverhin l. place Aand also for limit-ing its movement which had only a single straight rail engaging corner. What I claim is l 1.v lIn a `car mover, the combination .with

.the pinch b'ar 'adapted to be fulcrumed on the vrail and formed with an open pivot socketin front'of its fulcrum, and `the operating lever. pivoted `to the rear endy ofthe. pinch bar and having an arm .projecting forward of its pivot, of the thrust lever having its forward land lower vend loosely 'and 'detachably pivoted in the said. socket in'the `pinch'bar, and agbracin'g holder securingfthe rear-end of the thrust lever to the-'pinch bar-.with .limited looseness whereby the rear-'end'of the .thrust leverA is laterally bracedfbut can bebodil-y .moved`by-the operating lever while the front end rocks loosely `in s 'aid socket. p

2. In a vcar mover, "the combination of ya pinch bar adapted at'itsjforvsfard end'to engage vajcar wheel and provided between Eits ends with a rail engaging fulcrumv and jwith a socket, a wheel engaging thrust'leverjhaving its forward. end seated i'n'jthe :socket the walls of which form 'a pivotal` abutment, thesaid lever having atransverse'slot concentric 'with the pivotal alXis, a -pin-imoun'ted on the pinch bar and extending tl'irough the s'lt'for holding the thrustfle'ver in -pl'ace without preventing upward and downward movement, and an operating lever pivoted to the j'pinch barjandfadapted t'o move the thrust lever about its forward` pivotal axis.

In testimony whereof, I aiX my 'signature inipresenc'e of two witnesses.

WALTER A. DO'RSEY.

Vitnesses: A p v y.

time l Wr-sir, HAROLD F. Scorr.

Images