US159144A

US159144A - ax-thread sewing-machine

Info

Publication number: US159144A
Authority: US
Publication date: 1875-01-26
Anticipated expiration: 1892-01-26

Description

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H. mwningpnrl of Lest/firs Pntcnt No. (1e ted January 96, [cm

alts nit: mm

lc'z snrrs, nssicron TO rnn corsets @EWVIhlG-MAGEIHQE QUMPANY, OF El -Halli) PLACE.

1; application filcil lingual: e, not.

llieznmot Born.

n State of lilies d Sen 1' n gin. glint the folwho nccompnnyof reference which form part of this i relates to hnprorelnents in smite-nines. consisting in the crnnlr on the driving-shaft 'ion. in combination Witlrnn cling mechanism to the ns of which the letter is ,rtilcnl direction, aswillneW-be y shown and described. lo. drnm wignlets.

liliinilnr new in thcccnnecting mech- '1 "otion cf the owl and resser- H rectioin as the connecting J3. the cinchin f to the owl hown in the accompanyl Well hnlm'n; hnt my em mend nse'lnl connecti the crenltpin on the drivnish-or, lo the purpose of i. c and cnstoll in a. vertical niacin f did work in e I this difliculty, .E

curved slot on a rocking ernl, from which it rocking motion was conveyed to the shalt below that operates the needle her. cinch n. curved slot is expensive to make, (BUB/{HRS it great fricsion dnring its operation. Hill is hard to keep pro 'ierly ln hricstod 5 tln-relorc, to avoid employ e linleconnection. g, hinged in its upper end to the crnnlc nnfi and in its ower end to n. rochin lever, h, that is movnhle on the fulcrum as shown. .lhe levor h is provided with a. slotted ernl orexton sion, 70, having :1 slot. 7. in which the sctscrew 1 is made adjustable. To the set-screw bis jointed a link, m, the lower end of which is hinged to the upper end of at rocking lever, in. that is keyed or otherwise secured to the shaft 0 in the usual; manner. The l'lcedlehnr and cast-off her are operated from. the shaft 0 by means of e Reverend link-commotion, as usual. The throw of the needle in a vertical direction can be adjusted by changing the position of the set-screw tin the slot 7:.

By the employment of at single crank and 21- link connection with the intermediate connectin g mechanism to the needle and cestof)? hers, herein. shown, s. very positive motion is at all times obtained for the operation oi said bars in n vertical direction. Another adventeg'e is obtained in the employment of a. link connection as compared with the grooved ca ms, slotted levers, and other devices heretofore used for this purpose, in that this kind of Iinkconnection is not lizthle to become disarrenged by use, and after being once properly adjusted it does not need at skilled operator to run the machine. It also x'eqniresless repairs than other connecting devices heretofore used for this purpose.

Having thus fully described the nature, construction, and operation of my invention, I wish to secure by Letters Patent and claim?- In combination with the drivingshnft a and the crank-pin f, the linlcconnection g and the intermediate connecting mechanism to the rock-shalt c, substantially as herein shown and described.

In testimony that I claim the foregoing as myown invention I have nlilxcd my signntnre in presence of two witnesses.

' El) "v'lN ll. BEAN. Witnesses:

ALBAN Annmfin, J H. heroes.