US2525176A

US2525176A - Disconnectible register operating device for billet sawing machines

Info

Publication number: US2525176A
Application number: US79291A
Authority: US
Inventors: Lindgren John
Original assignee: National Tube Co
Current assignee: National Tube Co
Priority date: 1949-03-02
Filing date: 1949-03-02
Publication date: 1950-10-10
Anticipated expiration: 1967-10-10

Description

LINDGR Oct. 10, 1950 J. EN 2,525,176

DISCONNECTABLE REGI R OPERATING DEVICE FOR BILLET S NG MACHINES Filed March 2, 1949 Patented Oct. 10, 1950 DISGONNE'GTIBLE REGISTER OPERATING DEVICE FOR BILLET SAWING MACHINES John: Lindgren', Ellwood City, 11Pa.,. assignor: to; National Tube. Company, a corporation. of- N ew;

Jersey Application March 2, 1949} SerialNo'. 79,291

' 1; 'Ilhis-.inventionrrelates:to a: counting deviceand more -particularl'ymo a c'ounting device for'counting theipiecescuwfrom a:billet by a billet cutting sawsinaba'r milll Oneof ther-final' operationsin the rolling of steel billets in a barmill consists of cutting the rolledsbillet's intoimultiple' standard lengths suitableiarfor'rsubsequent. processing. The first" cut made' onra billet before it is cut into smaller lengths is-madezffor the purpose of' cropping off its scrap end which is discarded; I In order to maintai 'n accurate production records it is necessary to keep a record of the number of usable billet lengths-*cut in a given period. Prior to my invention :this. was done. by. the: mill saw operator who made a chalk mark or the like on a panel as each-billet was cut.

. I have proposed'the use of an automatic countin'g device which operates in conjunction with the operating 'leverof a billet-cutting sawto register each cut of the saw and thereby; record the nu mber ofpieces severed from the original workpiece. Inasmuch as some of the cuts of the saw produce crop ends which must not be included in the count, the counting device of my invention is also provided with means whereby it can be made non-registering when a crop cut is made.

It is accordingly an object of myinvention to provide a counting device which is actuated by the movement of a billet saw operating lever.

'It is a further object of my invention to provide V Figure 2; and

Figure 4 is an end view.

Referring more particularly to the drawing, reference numeral 2 indicates a panel mounted on a base 4. A conventional mechanical counter 6 having a curved actuating arm 8 projecting therefrom is mounted on the face of panel 2. A shaft I0 is attached to actuating arm 8 and extends therefrom through an opening l2 in panel 2 to a forked support [4 mounted on base 4 wherein it is slidingly supported. A collar I6 is rigidly mounted around shaft l0 intermediate'its ends by means of a cotter pin l8. A washer .20 is 310mm; (or. 235-431) provided around the lower end: of shaft l lljadjacent support l4toprovide=a bearing surfac'eifor.

one endof a helical.compressionspring 22iwhiclr surrounds shaft: I; L'By bearing'against:collar Hi'spring 22. constantly urges actuatingsarm 8 away from panel 2. QA' pairv of spaced apart-parallel rods 24 andZB project outwardly from panel 2 and-are positioned astride the actuating arm: 8 at' one end and astride the operating lever 28v of a. billet saw: at theother endi Operatingzlever 28 is connected with a billet saw (not shown) by means ofrconn'ecting arm' 29; having: a. groove 32; in the lundersurface of one: edge is slidinglysmountedion-rodv 24 intermediate lever Y28 and: actuating: arm 58. Block -:30.;;spans the1space between rods-.24 .andi'26 with its groove 32-resting on' rod 126."A finger lug- 34 is provided: on the topsurface of block 3 0 whereby the block can be rotatedaround rod to remove it from the path of operating lever 28. A clanipn36iisafiixedto "the send' ofvrod 24. A stop bar- 38 is attached to :clamp 36? and extends rearwardly' therefromto provide a stop:(for:block-ifso2that its rotative movement is limited to an arc of approximately 120 degrees.

In operation, when a cut is made, the saw 7 operating lever 28 is advanced, sliding block 30 into engagement with counter arm 8, thus registering a cut. When lever 28 is retracted spring 22 moves shaft ill to returnarm 8 and block 30 to their starting positions. For nonregistry of a crop cut the operator with a flick of the finger on lug 34 pivots block 30 out of contact with lever 28, the travel of block 30 being arrested by stop bar 38. With an oppositely directed flick, block 30 is again slidably positioned on

rods

24 and 26. In its extreme advanced position lever 28 can never depress actuating arm 8 without benefit of block 30.

While one embodiment of my invention has been shown and described, it will be apparent that other adaptations and modifications may be made without departing from the scope of the following claims.

I claim:

1. In a device for severing billets from a work- I piece, said device having an operating lever, the

A block. 3h

and astride the operating lever at the other end, a block having a, longitudinal groove in the undersurface of one edge thereof slidingly mounted on one of said parallel rods and having its grooved edge resting on the other of said rods intermediate said operating lever and said actuating arm, said block being adapted to cooperate with said lever and depress the actuating arm to trip said mechanical counter, gripping means on said block for rotating it out of the path of said operating lever, and a stop bar attached to the end of said slidingly mounted rod to limit the rotative movement of said block.

2. In a device for severing billets from a workpiece, said device having an operating lever, the combination therewith of a counting device, said counting device comprising a base mounted panel, a mechanical counter having an actuating arm projecting therefrom mounted on said panel, spring means attached to the actuating arm for urging said arm away from the panel, said spring means'comprising a forked support mounted on said base rearwardly of said panel, a shaft attached to said actuating arm at one end and slidingly mounted in said forked support at the other end, a collar rigidly attached to said shaft intermediate its length, a washer around said shaft abutting said forked support, and a compression spring mounted around said shaft bearing against said collar on one end and said washer on the other end, a pair of spaced apart parallel rods projecting outwardly from said panel, said rods being positioned astride the actuating arm at one end and astride the operating lever of said severing device at the other end, and a block slidingly mounted on said rods intermediate said actuating arm and said operating lever, said block being adapted to cooperate with said lever and depress said actuating arm to trip said mechanical counter.

3. In a device for severing billets from a workpiece, said device having an operating lever, the combination therewith of a counting device, said counting device comprising a base mounted panel, a mechanical counter having an actuating arm projecting therefrom mounted on said panel, spring means attached to the actuating arm for urging said arm away from the panel, said spring means comprising a forked support mounted on said base rearwardly of said panel, a shaft attached to said actuating arm at one end and slidingly mounted in said forked support at the other end, a collar rigidly attached to said shaft intermediate its length, a washer around said shaft abutting said forked support, and a compression spring mounted around said shaft bearing against said collar on one end and said washer on the other end, a pair of spaced apart parallel rods projecting outwardly from said panel, said rods being positioned astride the actuating arm at one end and astride the operating lever of said severing device at the other end, a block having a longitudinal groove in the undersurface of one edge thereof slidingly mounted on one of said parallel rods and having its grooved edge resting on the other of said rods intermediate said operating lever and said actuating arm, said block being adapted to cooperate with said lever and depress the actuating arm to trip said mechanical counter, gripping means on said block for rotating it out of the path of said operating lever, and a stop bar attached to the end of said slidingly mounted rod to limit the rotative movement of said block.

JOHN LINDGREN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 888,944 Vardeman May 26, 1908 1,452,713 Stortz Apr. 24, 1923 2,063,080 Christian Dec. 8, 1936