US382729A - Stickee - Google Patents

Description

(No Model.)

C.M;P;BLST1CKER,; MAGHINBPOR DRAWING RODS YA'Nn TUBES.

j Patented,Mayl5,.'1188,8.L1, i

Carl, Marzia, Pzlelscker. I

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v e m UNITED vS11/riens 'PATENTA i OFFICE. l il CARL MARIA PlnLsrroKnR, OF LONDON, COUNTY on MIDDLESEX, ENGLAND.y

MACHINE-FOR' DRAWING RODS AND TUBES.

SPECIFICATION forming part of Letters Patent No. 382,729, dated May l5, 1888.

Appllootlon nloa soptenlbor 5, leer. sonni No. '248.875, (No rnoaol.) patenten ln England July 14, less, No.9,114, and' ln' Gonmnny August 4, 1886, No. 39,156.

To aZZ whom it may concern.:`

Be it known that I, CARL MARIA BIEL- sTIoKER, a subject of the Queen of Great Britain, residing at London', in the county of Middlesex and Kingdom of England, have invented certain new and useful Improvements in Machinery for Cold-Drawing Rods and Tubes, (for which I haveobtained a patent in Great Britain, No. 9,174, bearing date July 14,1886,and xo in Germany, dated August 4, 1886, N o. 89,156,) of which the following is a specification.

My invention relates to' an improved machine for cold=drawing rods and tubes, whereby not only is the production increased to twice that of other machines nowin use,but also rods of any length can be drawn. In addition to which, from the' construction of my apparatus, the die through which the tube or rod is drawn is rendered absolutely self-centering, whereby 2o I am-enabled to produce rods and tubes of one uniform section and practically flee from crooks or bends. u

And in order that my invention may be better understood,reference is had to the accom panying sheet of drawings, upon which- Figure 1 represents a side elevation of onehalf of a duplex machine embodying my improvements, Fig. 2 being a plan of the same. Fig. 3 is a transverse section as seen through 3o line 12. Fig. 4 is a transverse section as seen through line 3 4. o Fig. 5 is a transverse section as seen through line 5 6.

Ais ascrewed shaft working within the wheel C; B B,housing for worm-wheel. C is a wormwheel arranged to revolve within the housing B B. D is a screwed bush or nut secured within the wheel C; E, worm in gear with wheel C; e, worm-shaft; F, spur-wheel; G, pinion in gear with same; g, drivingshaft; H, 4o cross-head secured upon each end of the screwshaft A; I I, guiderollers secured upon each side of cross-head H; K, guides on girders for crosshead H. LL are two girders or struts extending from housing B to die-plate O; M M, grippers or jaws for holding rod to be drawn; N, rod or bar to be drawn 5y O, plate for securing die; oo, studs or pivots secured upon same; P, swing-frame; p p, studs or pivots secured upon same and fitted within the girders or side 5o frames, L'L; Q, the die, R B', pulleys for driving-shaft.

My improved machine may be either single or'lduplex. For convenience-of illustration, o nepart only, or the parts constituting a single machine, are hereinshown, itbeing obviously sufficient to state that the d uplex machineconsists of a duplication of the` partsgsllown for ward 'of the housings, Figs. 1 and 2.

p In "construction my machine consists, essen- Y tially, ofascrewshaft, A, arranged to work within a worm-wheel, C, revolving on suitable bearings mounted in the housings B B. This worm-wheel C isprovided within the boss with? a nut lor thread, D, c'orrespondingwith the thread of the screwshaft A, and engages with 6: the worm E upon the shaft e, motion being imparteditheret'o by means of the spurwheel F andpinion G.

.The .screws-shaft A receives a backward or forward movement according to the direction .70 v

in which thewheel C is made to revolve, and has secured upon it a suitable cross-head, H, provided with guide-rollers I I, arranged torun upon a flange or rod, K, attached to the side frames, L L. Within the cross-head H is a pair of steel jaws, MM, for the purpose of gripping the rod or tube N to be operated upon.

At the opposite end of the frame is the dieseat O. This die-seat. consists of ajverticallypivoted plate, O, arranged within an outer 8c frame, l?, the latter being pivoted horizontally within suitable bearings on the side supporting-frames, LL. Y Within thisl plate O is the die Q, through` which the rod N is drawn.` By

this arrangement the die is free to moveslightly in a vertical or horizontalY direction, so as to admit of its adjusting itself totheline of draft at all times.

When the bar to be drawn is inserted in the die and caught between the jaws M M,it is evi- -go dent that as soon as theslightest pull is exerted by moving the screw-shaftfA the center of the die Q will place itself accurately in aline with the center of the rod N andthe screw-shaftA, and in consequence any crooks or' bendsl will 95 be obviated and thebar require but little orf no Y -straightening at all.

By making tho screw-shaft A hollow nous of any length can be drawn.

By drawing the length ofthe screw-shaft, then `loe causing the latter to travel back again,the drawn part of the rod passing then inside the hollow shaft, and by clutching a furtherlength of the rod the drawing operation is repeated until the entire length has passed through the die.

The rods being drawn through a die of a smaller diameter than their own section are compressed, and in consequence their textile strength and elastic limit greatly increased, while the surface is equal to that of turned shafting. At the same time, the die being absolutely self-centering, they are perfectly straight and at once tit for all uses for which turned rods are now required,without any further truing or manipulation.

Having fully described my invention, whatI c1aim,and desire to secu re by Letters Patent of the United States, is-

l. In a machine for cold-drawing rods and tubes, the combination of a screw-shaft carrying'a cross-head and gripping-jaws, means for reciprocating said screw-shaft, longitudinal frames supporting the cross-head, and a selfcentering drawing-die mounted between the extremities'of the frames, substantially as described.

2. In a machine for cold-drawing rods and tubes, the combination of a hollow screw-shaft carryingacross-head and gripping-jaws,means for reciprocating said screw-shaft,longitudinal side frames supporting the c`ross-head,and a die secured between the extremities of the side frames, substantially as described.

3. In a machine for cold-drawing rods and tubes, the combination of a screw-shaft provided with a crosshead and gripping-jaws,and means for reciprocating said shaft, side frames provided with lateral guiding surfaces ar the frame, and a die-plate supported within the plate or seat, substantially as described.

5. In a machine for cold-drawing rods and tubes, a self-centering die in a support comprising the horizontally-pivoted frame P, the die-holding plate or seat O, vertically pivoted within the frame P, and a die-plate, Q, snpported within the plate or seat O,longitudinal side frames between the extremities of which the framePis pivot-allysupportcd,and a crosshead and gripper arranged to be reciprocated between the side frames, substantially as described.

6. In a machine for cold-drawing rods and tubes, the combination of a screw-shaft, a rotating nut on said screw, a worm-wheel engaging said nut, a counter-shaft carrying a wormpinion engaging the worm-wheel, and suitable driving-pulleys on the counter-shaft, a crosshead and gripping-jaws on the screw-shaft, longitudinal frame-pieces provided with guides for the cross-head, and a drawingdie supported between the extremities of the framepieces, substantially as described.

CARL MARIA PIELSTICKER.

Witnesses:

JNO. DEAN. HERBERT E. DALE, Both of No. I7 Gracecz/urchStreet, London.

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