US1096876A - Reaming attachment for die-stocks. - Google Patents

Reaming attachment for die-stocks. Download PDF

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Publication number
US1096876A
US1096876A US76904613A US1913769046A US1096876A US 1096876 A US1096876 A US 1096876A US 76904613 A US76904613 A US 76904613A US 1913769046 A US1913769046 A US 1913769046A US 1096876 A US1096876 A US 1096876A
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Prior art keywords
die
thread
stocks
pipe
attachment
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Expired - Lifetime
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US76904613A
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Lawrence E Welch
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Individual
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Priority to US76904613A priority Critical patent/US1096876A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B5/16—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for bevelling, chamfering, or deburring the ends of bars or tubes
    • B23B5/167—Tools for chamfering the ends of bars or tubes
    • B23B5/168—Tools for chamfering the ends of bars or tubes with guiding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/22—Machines specially designed for operating on pipes or tubes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/904—Tool or Tool with support with pitch-stabilizing ridge
    • Y10T408/9042—Tool or Tool with support with pitch-stabilizing ridge and radially spaced cutting edge

Definitions

  • My invention relates to, improvements in reaming attachmcnt-s for die stocks, and the object of my improvement is to produce'an attachment for die stocks whereby a pipe ring of the thread thereof.
  • Figure 1 is a plan view of my improved die stock.
  • Fig. is a side elevation of the same, and part of a pipe.
  • Fig. 3 is a lan view of the same with the reaming attac ment removed.
  • Fig-4. is a perspective view of'the reamer strap.
  • Fig. 5 is a side elevation of the rcamer.
  • Fig. 6 is a front end view of the same on an enlarged scale.
  • Fig. 7 1s a sec-.
  • Fig. 8 is a similar view of the same with the parts in a dillerent position from that shown in Fig. 7.
  • Fig.0 is a sectional view on the line y 3 of Fig. 1.
  • the die stock .proper l0 involving the thread cutting portion of itself maybe ordinary and comprises a body ortion 11 having laterally extending hand cs 12 and provided with a central 0 ening 13 in which i the pipe 14: is positionc andhaving on the outer 'lace a dlametral way 15 interrupted by the opening, 13 in which is positioned a pair of cutter blocks 16, one on'each side of the opr-ning 13, and having on their opposed faces thread cutting jaws 17.
  • the cutter blocks 16 are each pierced through the body portion by a hole 18'.tuitab1y to receive a locking screw 19.
  • the lower face of the way 15 is provided with a threaded hole 20 in registration with the. holel 18 and suitable for receiving the end of the said locking screw 19.
  • the locking screw 19 is made longer than usual for a purpose to be described.
  • Thedie stock 10 described issuitable for cutting a thread 21011 the exterior of the pipe 14: in an ordinary manner.
  • the reamcr 23 operates to remove the bur 22 simultaneously with. the cutting of the thread 21.
  • the said attachment comprises the reamcr 23 and a holder therefor in the form of a stra 2 L secured in some suitable manner to the body portion 11.
  • the said strap 2% has a body portion of U shape, comprising thesaid arms 25 cross-connected by the yoke 26 at the apex.
  • the free ends of the arms 25 are provided with feet 27 having holes or slots 28 suitable for admitting the locking screws 19;
  • the yoke 26 is provided with a hole 29, which as shown is squarcfand which in axial alinement with the pipe 14.
  • the feet 27 rest on the outer face of the cutter blocks iii and-the strap or holder 24 when secured by the locking screws 1! serves as an extension beyond thercar face of the die stock 10 and in line with the pipe 14, and in this extension thereamer 223 isoperatively housed.
  • the said manner 23 comprises a rcainer body 30 having a plurality of cutter blades 31, a neck extending rearwardly from the said body 30 and provided at the rear end with a platform 36 from which extends rearwardly the headilzl.
  • the said head 33 is square, and is a lit for the hole 29 in the strap 2d and is held therein by means of a cotter pin. 37 which passes through a hole 38 in the said head 33.
  • the blades 31 comprise each a taperedportion 3d at the front end and which merges into a par allel portion inwardly" therefrom.
  • the said parallel portion is parallel with the axis and has a radius corresponding to the radius of the bore of the pipe Ll.
  • the reainer is suitable for cutting away the portion of the bar 22 in excess of the interior diameter of the pipe and to leave the bore of the pipe flush and of full proper diameter.

Description

L. 1-3. WELSH. REAMING ATTACHMENT FOR DIE STOCKS.
APPLICATION FILED MAY 21, 1913 Patented May 19, 1914.
'- will be reamed simultaneously with the out LAWRENCE WELSH, or MERIDEN, connnc'rrco'r.
.REAMING ATTACHMENT FOR DIE-STOCKS.
Specification of Letters Patent.
Application filed ne 21, 1912. Serial No. 769,046.
To aZZ whom it may-concern: i
Be itlmown that LLAwnnNon E. WELGH, a citizen of the UnitedStates; residing at Meriden, in the count of New Haven and State of Connecticu't,-. ave invented certain new and'useful Improvements in Roaming Attachments for 'Diel Stocks, of which the following is a specification.
My invention relates to, improvements in reaming attachmcnt-s for die stocks, and the object of my improvement is to produce'an attachment for die stocks whereby a pipe ring of the thread thereof.
1n the accompanying drawing: Figure 1 is a plan view of my improved die stock. Fig. is a side elevation of the same, and part of a pipe. Fig. 3 is a lan view of the same with the reaming attac ment removed. Fig-4. is a perspective view of'the reamer strap. Fig. 5 is a side elevation of the rcamer. Fig. 6 is a front end view of the same on an enlarged scale. Fig. 7 1s a sec-.
tional view on the line a: of Fig. 1. Fig. 8 is a similar view of the same with the parts in a dillerent position from that shown in Fig. 7. Fig.0 is a sectional view on the line y 3 of Fig. 1.
The die stock .proper l0 involving the thread cutting portion of itself maybe ordinary and comprises a body ortion 11 having laterally extending hand cs 12 and provided with a central 0 ening 13 in which i the pipe 14: is positionc andhaving on the outer 'lace a dlametral way 15 interrupted by the opening, 13 in which is positioned a pair of cutter blocks 16, one on'each side of the opr-ning 13, and having on their opposed faces thread cutting jaws 17. The cutter blocks 16 are each pierced through the body portion by a hole 18'.tuitab1y to receive a locking screw 19. -The lower face of the way 15 is provided with a threaded hole 20 in registration with the. holel 18 and suitable for receiving the end of the said locking screw 19. The locking screw 19 is made longer than usual for a purpose to be described. Thedie stock 10 described issuitable for cutting a thread 21011 the exterior of the pipe 14: in an ordinary manner.
The pipe 14 on the end of which the thread 21. is cut to the proper length by a cutting of? tool or machine of ordinary character so that the end presented to the die stock 10 to have the thread cut thereon has at the inner rim or edge the usual rough edge in the'form of a bur or swelling 22,
which if not removed obstructs and seriously interferes with the flow of the water through the pipe.
By means 0 my attachment the reamcr 23 operates to remove the bur 22 simultaneously with. the cutting of the thread 21.. The said attachment comprises the reamcr 23 and a holder therefor in the form of a stra 2 L secured in some suitable manner to the body portion 11. I prefer to secure to the strap 24 in the manner shown by means of the locking screws 19 that hold the cutter blocks 16. The said strap 2% has a body portion of U shape, comprising thesaid arms 25 cross-connected by the yoke 26 at the apex. The free ends of the arms 25 are provided with feet 27 having holes or slots 28 suitable for admitting the locking screws 19; The yoke 26 is provided with a hole 29, which as shown is squarcfand which in axial alinement with the pipe 14.
The feet 27 rest on the outer face of the cutter blocks iii and-the strap or holder 24 when secured by the locking screws 1!) serves as an extension beyond thercar face of the die stock 10 and in line with the pipe 14, and in this extension thereamer 223 isoperatively housed. The said manner 23 comprises a rcainer body 30 having a plurality of cutter blades 31, a neck extending rearwardly from the said body 30 and provided at the rear end with a platform 36 from which extends rearwardly the headilzl. The said head 33 is square, and is a lit for the hole 29 in the strap 2d and is held therein by means of a cotter pin. 37 which passes through a hole 38 in the said head 33. The blades 31 comprise each a taperedportion 3d at the front end and which merges into a par allel portion inwardly" therefrom. The said parallel portion is parallel with the axis and has a radius corresponding to the radius of the bore of the pipe Ll.
Accordingly, the reainer is suitable for cutting away the portion of the bar 22 in excess of the interior diameter of the pipe and to leave the bore of the pipe flush and of full proper diameter.
I prefer to have the length of the manner 23 such that the thread cutter jaws 17 will have started the thread 21 lo the extent ol? a thread or two before the cuttcrs blades 31 will engage with the bur 22, as shown in Fig. 7, and will completely remove the said bur 22 before the full length of the thread Y Patented May 19, 1914. a
2 oeesz e Ql has been cut as shown in Fi 8 and this I ierin from the iarticular st lc shown in is permissible because the bur 22 is of consiglerahly lessextent than the thread .21. Men because of the (lifi'erenee mentioned hetween the extent of the thread and the bar the cutter blades 31 may he sharpened and operate in the manner described.
Vilh my attachment as described close nipples may be reamed while. the thread is being cut thereon conveniently and without injury. Also because of the shape of the roamer and by having some loose play in theengagement of the head with the strap, it is possible to out what is known as a crooked thread and at the same time roam the interior of the pipe. The loose play mentioned is obtained by having the hole in the yoke a loose fit for the head of the cutting element,
It is understood that by making minor changes in details that any attachment as described may be used with die stocks difthe drawn'ig.
I claim as my invenlionz- 5 .f die stock and reamor combination conr prising a die stock having means for cutting a thread on the exterior of a pipe, a reamer For reaming the interior of the said pipe, connecting means for connecting the said so reamer to the said die stock so as to effect such reaming simultaneously with such cutting of the thread, the said reamer comprising a cutting element at oneend and a 11011- circular head at the other end and in axial 35 alinement With the said cutting element, and the said connecting means comprising a yoke having a hole for receiving the said head. and that is a loose fit therefolx LAWRENCE E. \VELOH.
Wi tnesses i SHEFFIELD H. ULARKE, I ROGER W. EDWARDS.
US76904613A 1913-05-21 1913-05-21 Reaming attachment for die-stocks. Expired - Lifetime US1096876A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256421A (en) * 1979-10-22 1981-03-17 Kloster Kenneth D Self-threading nut

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256421A (en) * 1979-10-22 1981-03-17 Kloster Kenneth D Self-threading nut

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