US1008950A - Wire-drawing block. - Google Patents

Description

E. 1L CARROLL. WIRE DRAWING BLOCK. APPLICATION FILED AP1L24, 1909.

.Patented Nv. 14,1911

2 SHEETS-SHEET 1..

' E. YHf. VVCRR'OLL. WIRE DRAWING BLooK, APPLICATION FILED APR.. 24, 1909.

Patented Nov. 14, 1911.

2 SHEETS-SHEET 2.

Be. it known that I, Emmer fran; sfr

'r sf narrar orare 'Eminem n. CARROLL, or wonensrnniinssacnusnrrs, Assenon To MORGAN con# STRUCTION COMPANY, OF WQRCESTER, MASSACHUSETTS; 'A CORPORATION MAS#` SACHUSETTS.

wlan-DRAWING BLOCK.

sppucaanneaapriizt,199s. serial no; 492,075.

To all whom it mayamasar/:L:` i

' a citizen of the United States, residing at ".l'orcester, in the county of `Worcester and Commonwealth of Massachusetts, have invented a newl andmnsefnleinprovement in Zire-Drawing Blocks, pf which the lfollowing is a specification, accompanied by dra-W'-A ings forming a part ofthe saine-,-1 1n""i.vh1chdrawing block embodying my Ipres'ent'inif/ provement. Fig.-2 is a "sidelelevatronsmith Figure `1 represents a top view of a wirek portions of the 'bloeklt-showfin' sectional.

v view todiselose the' operating Imechanism.'

Fig. 3 is a side view partly.; in section,

similar tothe view shown in Fi-g. 2, but

with the latclroperating mechanism ina different position from that shown in Fig. 2.

Similar reference letters and figures refer to similar parts inthe different views.

My present invention has for its object to I rcvide means whereb a flexible connection between the rotating block and the wire gripping?r mechanism will be immediately drawn entirely within a shield or protecting rim upon the top of the block, whenever the strain upon the flexible connection isv relieved, ras by the breakingl ofl the wire, thereby preventingv the centrifugal movement of the tiexible connection caused by the rotation of theblocl, and furtherto provide means for locking the liexible connection in an extended position to acilitate'the application of the gripping mechanism to the 'wire to be drawn before the rotation of the block isfhcgnn. These objects are .aceomplished' by. the construction and arrangement of parts as hereinafter describedy and set forth in the annexed claims. 1

'Referring to the accompanying drawings l denotes the outer shell or winding surface of a wire drawing blockhaving a flange at the bottom la. 2 is a vertical rotating shaft by which power is applied to the outer shell 1 by means of any suitable clutching mecha: .v'nisnn either positive or fractional, said clutching mechanism being operated at will to throw the.w1redraw1ng block lnto and out of connection with the driving power.

iin thel accompanying drawings l have I shown the block as'driven from the shaft 2 through a l trietional clutching .mechanism,i

novii in commonuse, but other 'typesy of clutching mechanisms ,new 1n use may be employed :for connecting the block with the driving power. Mounted upon thetop of) the block is a swinging lever 3 having vone Specicetion of Letters Patent. .i Patented Nov: 14, 1911."

endpivoted upon a stud@ and connected atA its opposite end bymeans of apchainfor other suitable flexiblel connect-ion with a wire'gripping 'mechanism 6 of any.lifritrrrn..

form of construction.

rmjeaingnom al@ to Ostheimer 15e,"

curved rim7 formihga s ieldk and providedy with "an opening 8through which the'y "chain lis drawn in tangential relation to f thefperipheriof ythe block` during the` operation lof the bloclnas represented byI solid lines inFig. 1. Attachedto the lever between its -free end andthe stud 4 is a spiral-wA spring 9 attached atits oppositemend 'to a stud 107N v saidspring exerting a tension to drawthe lever 3 when the strain fupon the chain l5 is relieved from its position shown inFig. 1 to the position shown by broken. lines at 1'l,"'l5"ig. 1; The lover 3 is heldin theposition' shown in Fig. 1 with the `free end in con-tact with the shield 7 at the open# ing 8 and with the chain 5 extended beyondv the shield 7 by means of afalatch 12 operating through-an openingvl 1n theV top of the block to engage the edge of the'lever 3. The' latch 12 is pivoted at 14 on a bracket 15 at-4 ltached in thepresent instance to an interior ortion of the wire drawing block, andthe Y atch is held in position to engage the lever 8 by means of a spiral spring 16 attached atone end to a` stud- 17 held in an interior portion of the block, and at its oppdsitefend to an arm 18 projectingr from the latch 12. Thelatch is acted upon by the spring 16 but the movement of the latch 12 by thespring 1G is restrained by an arm 19 of the'latclr which is brought in cont-act with/the under Iside 'of a lug 20projectging 'riphery of the ring 21.-: The ring 2l." is held from the. pe-

by'v springs 21,a -upon the upper` ends of lift=I v.-

ing spindles 22 carried bya ring 23 beneath the block which is supported yupon the. fric-f tion rolls 24 carried in a yoke 25, eapableof being rocked yin bearings 26 by `the attend.,- ant, so as to raise or depress the kfrictionrolls'2i. and lift the rings 23 and 21,'orV al-4 low them to Vfall by gravity.

The `latch 12 is raised to hold the lover in contact' with lthe shield 7 A'against the flexible connection 5 extended beyond. the shield 7 to provide for the'attaching of theV .orceiot the spring 9 and also to hold theI face 29 on a vcentral bl to the shaft 2. The l within said block `as 2.A A rotatable' wire winding block,- agripbetween/,said block and said gripping-mechawire to be drawn to the flexible connection 5. lWhen this is accomplished, the rotation of the block is started and the latch 12 islowered, leaving the flexible connection reegto be withdrawn immediately within the shield 7 by the lever 3 operated by the spring 0 in case the strain upon the liexible connection 5 by the wire is released for any reason, therebypreventing liability-of injuri7 to the attendantwhile the block is in rotation -by the, swinging.,r `of the fiexihlt connection by centrifugal force caused by the rota'- tion of the block. The ring 2l enters a peripheralv groove 2T in a friction ring 2S which, in its lowest position frictionally engagesia beveled'sur-l ock 30. which is keyed lock 30 is inclosed by a spiral spring 31,. one end of' which is connected with an oilvreccptacle 32, and the other. end `is connected with the friction ring 528. "licii the friction ring Q Sis raised out of contact with the beveledfsurface 29` of theI driving'block' 30. the latteris allowed to rotate within the spiral spring 31y which remains at rest. lVheii the friction lring' 2S is lowered into contact with the beveled surface 29 of the. driving block 3 the ring isl rotated with the block which winds up the spiral spring 3 1 upon the: driving block 3() until the spring is rotated by `the block 30 and rotaiv motion -impaited to the oil rccepta'cle 32 and connected outer winding shell 1.

.The specific vfrictional clutching mecha-` msm shown forms no partof my present invention, but is described herein to illustrate a method of ma-king'af connection between the latch releasingA mechanism andv the clutchfl operating device in order that the lowering of the latch 12 and the beginning of the rotation'of the. wire drawing block may be simultaneous.

claim, y y 1. A wire drawing apparatus, comprising' a rotatable-block upon which the wire is wound, a gripping mechanism for `seizing the wire, a connection between said gripping mechanism and said block, and means `for automatically withdrawing said connection soon as thestrain of the wire is removed.

ping mechanism, la 4 connection between said block andf'said..` ripping mechanism, a shield on said block. an anteniatic means for withdrawinglsaid connection behind vsai@riield as soon as the strain ofthe wire upon said" connection is removed. v

3. A wire drawing apparatus, comprising a rotatable block, al gripping mechanism for the wire-to be drawn, a connection-v nism, positive means -forholding said c onnction to resist the strain of the wire, and

means for moving said connection automatically in the opposite direction to the strain of the wire as soon as thestrain of the wire is removed. l f

l. In a wire drawing apparatus, a rotatable block, a gripping mechanism for the wire to be drawn. a connection between said block and said gripping mechanism, means for holding the inner end of said connectioniii contact with a portion of the periph.- cry' ot said block to -resist positively the strain of the wire, and means applied to saidv inner end for drawing automaticallyy said connection within said periphery as soon as the connection with the wirel to be drawn is broken.

5. A rotatable block, a gripping mechanism for the wire to be drawn, a connection between said block and said gripping mechanism, a shield carried bv said block, a spring having its tension applied to said connection arranged to withdraw said connection entirely7 into tlie'space. betweeny said shield and the center of said block when the strain ofthe wire is removed from said connection,

whereby thc centrifugal motion of said conf nection is prevented.

6. A rotatable block. a gripping mechanism `for thewire to be drawn. a connection vbetween said block and said gripping mechanism, a rim upon the top of said block forming a shield. and automatic means for withdrawing said connection behind said shield as soon as the strain of the wire upon said connect-ion is removed.

' 7. A rotatable block. a gripping mechanism for the wire to be drawn. a connection between said block and said gripping mechanism, a shield carried b v said block. a lever behind said' shield pivoted upon said block, with said connection attached to the free end of said lever, and a spring at right angles to said lever arrangedto exerta pulling strain upon said connection.

8. In a wire drawing apparatus of the class described. a rotatable wire winding block, a gripping mechanism, av connectionbetween the block and gripping mechanism, a lever pivoted on said block havingits free end attached to one' end of said connection, a spring applied to saidlever to exert a pulling strain-on said connection. and a latch for holding said lever Aagainst the tension of said spring.

`9. In a wire drawing lapparatus of the .class described'. a rotatable block provided with a-clutching mechanism for connecting saidbl'ock with' the driving power, -a lever pivoted on saidv block, a'lgripping mechanism, a connection bet-wen thegripping mechanism and the free end of said lever. a

spring applied tosaid lever to exert a pulling strain upon said connection, a latch for holding said lever against. the tension of said spring, and means for releasing said latch and bringing said, cltching mechanism into operation. l j

10. In a. wire drawing ap aratus ofV the' class described, .a rotatable b ock, clutching 5 mechanism between said block and the driving ower, a gripping mechanism for seiz-v lng t e wlre, a connection between'the gr1p..

ping mechanism and the block, means for straining said connection moving means,and means for releasmg sald latch land bringing A saidy clutching mechanism f into operation simultaneously. Dated this 22nd day of April 1909.

ELBERT H. CARROLL.l Witnesses: PENELQPE COMBEBBACH. NELLE WHALEN.

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