US1762670A - Reamer for pipe threaders - Google Patents

Description

June l0, 1930.

E. T. sli-:5K0

REAMER FOR PIPE THREADERS Filed March 1e. 1.927

.m si.. I

YPatented June 10, 1930 STATES PATENT OFFICE EML`T. SIESKO, F NANTICOKE, PENNSYLVANIA BEAMER FOR PIPE THREADEB-S i i Application filed March 16,1927. Serial No. 175,789.

' This invention provides means whereby a pipe may be threaded and the burr removed atone operation and withoutnecessitating rea-:djustment ori thestoppingoi: the cutting g'liaction of the threading tool7 both operations being effected on the forward movement of the tool.

The invention supplies a rearner which is adapted to be readily attached to a pipe 10 threading tool and adjusted to the lsize oiE the pipe to be threaded without interfering in the least with the ordinary operation or use of the tool.

VThe invention furthermore provides a 15 reamer attachment oi the character aforesaid which may be marketed at relatively vsmall cost and which is adjustable to be easily adapted to pipe threading tools of diierent sizes within certain limits.

VVhi'le the drawings illustrate a preferred embodiment of the invention it is to be understood that in adapting the means to lmeet speciic needs and requirements the design may be varied and such other changes .in the minor details of construction may be resorted to within the scope of the invention las claimed, without departing from the vspirit thereof. Y

For a full yunderstanding of the invention and the merits thereof, reference is to be had to the following description and the drawings hereto attached, in which, Figurel 1 is a detail sectional view ci' a reamer attachment showing it in operative relation.

Figure 2 is a detail perspective view of the attachment, the parts being separated and disposed in a group. j

Corresponding and like parts are referred to inthe followingA description and designated in the several views of the drawings by like reference characters. j The die stock illustrated is ot welllrnown .construction and has been selected to demonstrate the application or the invention. The frame or head of the die stock is designated Vby the numeral 1 and 2 indicates the usual Yhandles removably itted thereto.

The reamer attachment comprises a frame including a yokey which comprises spaced side pieces' and a connecting end piece 4 in which is formed an opening 5 to provide clearance for the stem 6 of the reamer 7. The side pieces 3 have longitudinal slots 8 formed therein to receive 'the reduced ends of a 'cross head 9, in which is formed an opening 10 of noncircular outline to vreceive ,the stem of the reamer to cause the latter to rotate with the thread forming tool.' Threaded stems 11 project outwardlyvvfroni the reduced ends of the cross head 9, and re-y ceive clamp nuts 12 by means of which the cross head isv made secure in the required adjusted position. Y

' Lugs 13 project outwardly in opposite di'- rections from the free ends of the side pieces 3 and provide convenient means for attaching the reamer to the head or frame of the die stoel/r. Similarly formed connectors 14 are adjust-ably coupled at one end to each of the lugs'l and the opposite end is formed with an opening 15 through which a handle 2 extends, whereby to secure the reamerto the threading tool. Opposite end portions of the connectors 14 are disposed at a right angle to one another, and the end in contact with the lug 13 is formed with a threaded opening v16 to receive a screw 17 provided to secure the yoke to the connectors. Each of the lugs 13 is formed with an elongated opening 18 to receive the screw 17 andad- Inits of adjustment of lthe connectors 14 whereby the attachment may be readily adapted to different ydie stocksy The end portions or" the connectors 14 which engage the `lugs 13 are provided at one side with a flange 19 which is adapted to sustain the thrust when theA reamer is in operation, and thereby relieve the bolts, 17 ofthe major part of the strain. I

These connectors areprovided with, an inwardly projecting shoulder intermediate their end portions, constituting an abutment or vbearing for the upper Isurface of the trame or head ofthe diestock 1, to give' 1ncreased rigidity to the assembled combination of diestock, reainer frame and connector.

@ne ofy the connectors is provided intermediate the angularly'disposed ends with an observation opening 22 through rwhich the y usual indications on the face of the die stock may be read.

The cross head 9 is adjustable between the side pieces 370i the yoke and is made fast in the lrequired adjusted position by means or the clainp nuts l2 between which and the shoulders at the base of the reduced ends of the cross head the side pieces 3 are clamped. Scale graduations Q3 are provided along an edge ol one of the side pieces 3 and in conjunction with an indicatingmark on theV cross head 9 enables the latter and the reamer to be properly adjusted according to the size ofthe pipe to be screw threaded. The steinl ofthe reamer is usually tapered and of square formation and the opening 10 formed in the cross head 9 is of corresponding` shape to snugly receive said stemk and holdthe reainer `Zin place. When the attachment is applied to ay pipe threading tool it is rotated with the tool when threading a pipe. Ther-earner is adjusted so that during the final cutting of the thread the reameris brought into action to remove the burr 'from the end of the pipe formed by the usual pipe cuttingtool.A Both operations areV performed simultaneously and during thead- Vancefof thethreading tool, thereby obviating the `stopping of the tool or necessitating Y the readjustinent thereof.

Having thus described the invention, IV claim: .i

7l. A reamer attachment for pipe threading tools,'the same comprising a frame including a'yole having outwardly disposedV lugsproviding means of attachment totheY threading tool, the side pieces of the yoke beingvformedwith longitudinal slots, a cross head adapted t0-receive andV carry the reamer and formed'withreducedk end por-k tions disposed toj operate in `the longitudinal slots ofthe side pieces,` and lhaving threaded stemsprojecting outwardly from the reducedends, and clamp-nuts mounted upon adjustably connecting theV other end to a lug oi the yoke.

3. In comb'nation with a pipe threading diestock having handles and a reamer kattachment thereforliaving a yoke provided' With outwardly disposed lugs, means for connecting the attachment tothe diestock coinprising a lpair of relatively flat members each having perforated end portions disposed at approximately right angles to each other7 one of said perforations being adapted to receive one -of said handles, Y.

means passing through the other of said perforations tocouple the connector to one of said lugs, and an inwardly projecting shoulder intermediate the end portions adapted to abut against a portion of the diestock:

In testimony whereotI'aHiX my signature.

EMILT. SIESKO. [1.7. s.]`

. said tlireaded `stems .to secure the cross head to? Vthe-yoke in the required adjustedrposition, there beinggan indicatingmark on the f u I cross li'eadfand coacting scale graduations en .a sidepiece vof the' yoke, to admit of proper adjustment; of the reainer. Y

- 2. A reamer attachment for pipe thread-VV ingtoo'ls the same'comprising a `rainejin` cluding'a yoke having its side pieces longitudinally slotted and provided at their ends with outwardly disposed'lugs in which are formed Y elongated openings', a cross head having'reduced ends disposed in vthe slotted side pieces of the"yoke,`means`for securing y Y the cross heads inthe required adjusted positiOnS, connectors having'opposite end portions disposed relatively at righty angle,V

one of the-ends being. apertured toreceive the handlesot the, threading toolpand means y les

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