US926110A - Draft and buffing gear for cars. - Google Patents

Description

l Allarm;

MQ A. GABRBTT. l DRAFT AND BUFFING GEAR FOR GARS. y

LP-PLIULTION FILED HAR. 7, 1908.

Patented June'29, 1909.

M, A. BARRETT. DRAFT .um Burma GEAR Fon aus.

. APPLICATION FILED MAIL?, 190B.

""xy MHH UNITED STATES PATENT OFFICE.

MYERS A. GARRETT, OF GHICAGO,1LLINO1S DRAFT AND BUFFING GEAR FOR Specifica lon o! Letters Potent.

Patented .Tune 29, 1909.

l, j Application llled March 7, 1903. Serial No. 410,788.

1 tion. 1 V

The object-of my invention is the rovir-,aion of a. gear for taking and .absor ing;I the in len th; tyre;

'elned frictionzl surface; 20, pince .strains and shocks incideiipo boiling and towing mainly through the medium o tric tional surfaces or elements movable one n pon another, and which preferably shall be supplemented by a cushioning device or flevices for takmg the initialstrains. The invention consists in certain :nivelties of construction and combinatie of ports as hereinafter set forth and claimed.

The accom anying drawingillustrates an example of t le physical embodiment ol' the invention constructed accordingl to the liest mode I have so far devised for the praal ical .apflication of the principle. 25. 4

f 'is o. section taken in a vertical lplanc on the igurel is a top plan of the gear. Fig. 2

line a:-, Fig. 1. Fig. 3 is a an of ono of the cheek plates and shows t e relativo arra-n ement and location of the slots in the dringt sills or supports, and the cheek plates. Fig. 4 is a plan of one of the draft. links. Fig. 5 is a horizontal section of Fig. 2 taken oma. plane substantially coiucidix with the drn* bai, keys and slots in tio central strin ers.

,Re erring to the figures, the numeral 1 desi natesan end sill of a. car floor frame; 2, e center sills or stx-in cra, in this insten-ce of channel beams, t cogli they naf' be of other shape in cross section' 3, che plateet secured by rivets to the wells of the channel beams; 4, a front slot in the web of each channel beam and cheek plate Si in length" V5, a. second Slot. 4" in length; (i, o anni sin ses" in leugen r, a anna an a" a draw bar of any atpprovecl a slot in the draw bar; 10, 1e draft links; 11 12,- 13, 14, slots in the draft links, all but lll elon ted; l5, a metallic compres sim block witua. lug seated within the end of 'the draw bar; 16, a hole therethrough; 17, a recess at one end of theblock and within the'body thereof; 1 8, an upper 1nclixied Afri'ctional surface; 19, s .lower inrs; 2l. the lever ends or handles; 22, curved fric-,tional cnahion 38, the links remaining sulticnah snrl'aces which engage thc :surfacel 18 and lll bounding the recess in the compression block; 28 the jaws of the pincers; 24, re` oessos in the jaws; 25, a spring or s )rin s or cushion between the jaws; 26, holes or a fulcrum pin; S37,` the ulcrum pin passed through tie holes and with its ends located within the slots in the links and sills or supporls; 28, the frictional surfaces at the ends of the jaws; .ll, a friction plate; 30,'a bons upon the face of the plate;.3l l friction surfaces at the'encl of the pinccrs Jaws; 32, lugs for supportuxg springs; 33, two sets of helical springs; 34. a follower block; 35, lu s sup-4 porting the helical springs; 36, a hole t u'ongh l. the block; 37,11 key passed through the block and also through the slots in the links and i sills; a Filler block riveted to the sills and against which the follower block rests in boiling; 39, a key meecd through the slot in the draw bar and lts ends located within thc slots of the links and sills or su ports; and -10 is a key assed through the Iliolo in the volnpreesion lock and its ends located and supported within the slots inthe links and sil s or stringere.

In practice the main parts of the gear ina he applied in connection with the so-called draft timbers or sills of a car, all the keys to be flat instead of round, and la spring or cushion 41 to be used between the lever ends.

A The several parte and elements of the coinbined dering` boing in the relative positions shown by the drawings, the mode of operation is as follows: In towing the draw bar is advanced, carrying with it the links which slide wer the ke 40 and fnleruinpin 2, and the follower lock and key 87. As the draw bar is further advanced the cushions 83 are compressed and the friction Iplate 29 is forced against the pincel-s jan-a ro alive to which they more in friotional contact and compress s .ring 25ms they turn in closing about the ulcrum pin. The lever ends of the piacere sinnlltaneonslv al'rproach ,each other and their frictiona surfaces travel downwardly upon .the inclined surfaces bounflin the recess in 4the compression block. n boiling the follower block is slationary and the draw bar, its key, tl1e co 1n pression block, the placers, and the. friction plate are forced rearwardly against the '.Y b' rennen of the' resence therein o elongated slots. cn the cushion 38 is present. the arrangement is auch that. the

' plate' the pl fulcrum pin can move about il rearwardl com ressmg the cushion and absorbing lig it shoe s before the pincers commence to turn il-out vthe fulcrum pin, then the lever ends und the inws commence to travel relntive to the frictionel surfaces lwith which they are in contact and at .the 'same time compress s ring 25. The operation is vthe same when t ic cushion' 83 is omitted and the plate end follower block are in contactl exce t that the pincers iminediatel) commence to' rn about the fulcrnni pin and compress the spring or cushion 25 and he lever ends and Jaws travel relative to the frictional surfaces with' which they are in contact. ObviouslyJ the degree of pressure between the frictionul surfaces may be regulated by theuse of springs or cushions 25 of unequal resistance to com ression.

Wha. I claim is:

1. The combination in a draft and buing gear, of a draw bar; s. compression block; pincers; e cushion between tie jaws of the pincers; c follower block located in the reiir o`f the Jincers; means for retaining the several einents in their relative positions; und means for transferring motion from the draw bar to the follower block in drawing.

2. The combination in a'draft and buiflng geur, of a draw bur; e compression block; pincel-s; a cushionin connection with the incers; n follower block; means for retain` nig the several elements in their relative ositions; and links for transferrin motion rom the draw bnr to the follower lock' in drawing. y

3. The combination in a draft and boiling geur, of a draw bur; e compression block; pincers; u cushion in connection with the pincers; a follower' block; keys and a fulcruni pin for retaining the several elements in their relative positions; and means for transferring motion from the draw bar to the follower. block in drawing.

L :The combination in a. draft and buliing gear, of a draw bur' a compression block; pncers with a movable fulcrum; o cushion in connection with the pincersa. friction a follower block; a cushion between ate and follower block; means fory retaining -rhe several elements in their relative sitions; and means for transferrin motion om the draw ber to the followeriloclt in drawing.

5. The combination in a draft and builing geur, of s. drmvbnr; a compression block; pincers with a movable fulci'uni; a. cushion in connection with the pineeis; a friction plate' afollower block; a cushion between the plate and follower block; s for re taining the several clemente in their relative sitions; and means for transferri motion rom the draw bar to the follower lock in drawing.

C. The combiimtion in a. draft and buing geur, of a" draw bar e compression block; pincers with a movable fulcrum; e cushion 4in connection with the pincers' a friction platea follower block; n cushion between the plnte und follower block; ineens for retaining the several elements in their relative positions; and links fortransferri motion from the drew bar to the. followei'gblock in drawing. l

7. The combination in n draft und buiing gear, of a draw bar a compression block; pincers with a movn'le fulcrum; :i cushion 1n connection with the incers; n. friction plate' n follower block; c cushion between the plate und followeii block; keys for rctninmg theseveralrelenients in their relative positions; and links with elongated slots for Ytransferring nie'tion from the draw bei' to.

the follower block in drawing.

8. The combination in-a draft und .buiiing gear, of a draw baijla compression block;

pincers with a move fulcruin; a cushion between the jaws of the pincers; a friction plate' a. follower block' a cushion between the plate und follower block' a filler block against which the follower block bears in boiling; means for retaining the several elements in their relative positions; and means for transferring motion from the draw bar to thefollower block indraWing.

9. The combination in a draft and buling gear, of sills or supiports with slots; a draw er; a compression lock; pncers'with a, fulcrum; a cushion in connection with the incers; a follower block; slotted and vcys passed throu li the slots in the draw bar,'cornpress'on b ook. follower block, and sills or supports.

l0. The combination in a. draft and boiling gear, of sills or supgiorts with slots 5 ii draw bar; a compression lock; pince'rs withafulushion in connection with the cruin' a c pinceis; n follower block' e friction. late; 4a cushion between the late undl llowerl block i slotted links; un keys passed througlri the slots in the draw bar, lcompresion bloc follower block and sills er sup orte.

11. The .combination info dra 12. The combination in e dreigt. end buiing l fear, of pincers having a comnion fulcrum ever ends and Jaws, and a. cushion between the laws.

and bulliiig gear, of supports*` a draw bar; piners hav- :y ing e common ful lll' 0 13. The combination in a draft and buliing ean of pincers with lever ends and jaws, an

ment with frictional surfaces in connes tion with said lever en a cushion in coi neet-ion with the j uws, an an element with a i frictonal surface Yin connection with the jews.

iso

14. The combination in a draft and bullng with a movable fu cru'm pin having its ends gear, of incers, elements with frictional sur- .farvs at. oth ends of the pxncers, a cushion in uoi1|wct1on..w1th the pmcers, e. follower block, and a cushion between the follower block and the fric'tioiml element. at one end j ofthe Jinrers.

l5. 'Ihe combination in a draft. and bufi ing geur, of n compression block, with a movable fnlcrum; n cushion in connection with the pincel-s; and u friction plete or element atl-the end of the pincers.

16. The combinLtion in n-drnft and buffimir gear, of u compression block, pincrs wit-h a fulcrnm pininovnhle with the pincers, a cushion betwer-the jaws of the pin-v cers, a friction plate, a follower block, and a cushion between the fllower block and 4friction plate.

1T. The combination in n draft und buffing gear, of u. compression block with u re-f` cess having inclined surfaces, pincers with lever ends and jaws, n cushionin connection"A with the jaws, and n.A friction plate in contuct with the jaws.

1S. The combination in u draft and butiingi rem', of su )ports with slots, pincel-s with. a fu cruxn 'Jin raving its ends located in the slots, a cus ion in connection with the pincurs` und frictional elements nt thc ends of the pint-ors. 1H. lhc combination in a. draft :1nd buffpincers ing gear, of vsnp orts with slots, pincers located in the slots, n cushion in connection with the pincers, and frictioxml elements nt the ends of the incers.

E20. The combination in o. draft and bntfing gear, of supports with slots, a compression blo'ck, pincers, a cushion in connection with the pincers', n friction plateV a. followerv block, a cushion between the fo'llower block and plete, keys passed thronghthe follower block :incl compression block and movnblc in the supports, und a movable fnlcruin pin foi-fthe pincrrs with its omis movable within the slots of the supports.

21. The combination in a droit geur, of pint-ers having u common fnlcrnm and lever ends with n cushion between them.

22. The combination in n draftgeair, of pinrcrs havimr a common fulrrmn lever ends und jaws, um a cushion between the jaws.

23. The combination in a draft gear,4 of pincers havingr lever ends und jaws und a cushion between the lever ends and also bctween the jaws.

In testimonv whereof I affix my signature in presence o two witnesses.

MYERS A. GARRE'M.

`Wil nesses N. B. MAchivrroN, C. M. (fanmrrr.

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