Dec. 24, 1946. D. 1.. SMITH 2,413,117 BILLET NICKING MACHINE Filed May 20,_ 1945' _5 Sheets¥Sheet l .2...” 04 if?” ail, élav’w ATTORNEYS Dec. 24, 1946. 2,413,117 D. 1_. SMITH BILLET NICKING MACHINE Filedv May 20, 1943 5 Sheets-Sheet 2 FIELZ ' INVENTOR "' AZ] BYv '59 Q , ‘ im 41 ' _ l ATTORNEYS -~4 I Dec. 24, 1946, D. L. SMITH 2,413,117 BILLET NICKING MACHINE Filed May 20, 1943 5 Sheets—Sheet 3 INVENTOR ?ak/1 x and‘ ‘ BY . . ATTORNEY5 1)» 24, 1946. D. L. SMITH 2,413.117. ~ BILLET NICKING MACHINE v Filed May 20, 1943 5 Sheets-Sheet 4 .miUE INVENTOR ?akBYx 2.4% “A”; M. . ATTORNEYS Dec. 24, 1946. D. L. SMITH BILLET NICKING MACHINE ' 2,413,117 Filed May 20, 1945 5 Sheets-Sheet 5 Om .N Hmfa \P \ , on..L \.sm 3U_h 81 3 .. mmw u .K f -_uu.3aba?,.41nJ“.w\,E15: ,u ,r -. . . .. an. .J Y _ i ‘m J H n w. _. wm.u__ an0.? r_ m-Lb m mmS- “.3: "h 3Em /I > 4 lNVE-NTOR £44! ,4’ 21% Patented Dec. 24, 1946 2,413,117 UNITED STATES PATENT OFFICE 2,415,117 BILLET NICKING MACHINE Donald L. Smith, Dunellen, N. J ., assignorto Air Reduction Company, ‘Incorporated, va corpora tion of New York Application May 20, 1943, Serial No. 487,724 4 Claims. (01. 266-23) 1 2 This invention relates to improvements in ap ‘ engage the front and rear faces of the corre paratus for nicking or grooving billets on oppo site sides by means of gas cutting torches so that the nicked billets may be broken into short pieces suitable for use as stock blanks in forg -. guide rail on three sides so that the frame 3 is ing shells and bombs, and in making various ' movable only in a vertical direction and in that sponding guide rail, and a roller 5 which en gages the edge faceof the guide rail. Thus the rollers of each group engage the corresponding other articles. direction it is movable quite freely. One type of machine that has been proposed A transverse guide rail 6 extends across the for nicking square billets has a vertically mov full width of the frame 3 and is supported at able frame on which a pair of gas cutting 10. each end by a horizontal rod 7 which is mount torches are so supported that their cutting jets ed to slide in a bearing 8 secured to the corre may be directed against opposite vertical sides sponding end of the vertically movable frame 3. of the billet. The frame is operated by a motor The rods 1 have racks 9 along their lower sides to move the torches vertically across the side engaging‘with pinions Ill-mounted on the ends faces of the billet at the desired uniform cutting 1.5 of a shaft II (Fig. 1) rotatably supported by the speed and thereby simultaneously produce in the vertically movable frame 3. There is a hand two billet faces a pair of vertical nicks which wheel I2 at each end of the shaft II. By turn are directly opposite each other. ing. either hand wheel to rotate the shaft 1 I The principal object of this invention is to both pinions H] are rotated to move the rods ‘1 improve the construction and operation of a bil a). simultaneously in their bearings and thereby let nicking machine of this type, particularly by adjust- the guide rail 6 either forwardly or rear providing additional advantageous adjustments wardly. Two separate torch supports l3 are of the torches relative to the vertically movable slidable alongthe guide rail 6 and are adjust frame that supports them, by improving the able transversely of the machine by lead screws mechanism for imparting vertical movement to l4 rotatably supported in bearings carried by the torch-supporting frame, by so constructing the guide rail. Cranks l5 are fastened to the the machine that most of the mechanism for ac outer ends of the lead screws I 4. By turning tuating the vertically movable torch-supporting the crank at one side of the machine the torch frame may be enclosed to exclude dirt and grit, support l3 at that side of the machine may be and by providing certain other novel features as 30 adjusted transversely along the guide rail 6. will hereinafter appear. A gas cutting torch it, such as oxyacetylene In the accompanying drawings: cutting torch, is carried by each support l3 by ‘ ' Figure 1 is a front elevation of a nicking ma connecting structure as follows: The torch is chine embodying the improvements; clamped in a torch holder l1 having a stud I8 Fig. 2 is a side elevation of the machine shown 35 disposed longitudinally of the machine and ex in Fig. 1; tending into a clamp I 9 (Fig. 2). The stud I8 - Fig. 3 is a plan view of the motor housing with is rotatable in the clamp I 9 to change the in the cover removed to show the interior mech clination of the torch and the clamp l9 may be anism; adjusted to change the friction on the 'stud. A Fig. 4 is a side elevation of a modi?ed form of .40 Worm vwheel .20-on-the studi? meshes with a mechanism for actuating the vertically movable worm 21 on a shaft 22 that is mounted to turn torch-supporting frame; in bearings at oneside of the clamp It. ‘This shaft may be turned by a knob 23 to swing the torch holder about the axisof. the stud l8 when . Fig. 5 is a front elevation of the structure shown in Fig. 4, and Fig. 6 is a plan View of the motor housing 45 ever the tip of the torch is to be adjusted to shown in Fig. 4 with the cover removed to show ward or from the side Wall of the billet. This the interior mechanism. .. Referring ?rst to Figs. 1 to 3, the machine therein illustrated has a housing I to the front adjustment is made manually when-necessary to cause the torch tip to follow irregularities in the surface of the ‘billet during a nicking oper corners of which a pair of vertical guide rails 50 2 are fastened. A torch-supporting frame 3 ex . The clamp I9 is clamped to the outer end of a tending transversely across the front of the ma rod at having a rack 25 at its underside. The chine is mounted for vertical movement on the rod 24=is mounted to slide longitudinallyin a guide rails 2. At each corner of the frame 3. there bearing 26 supportedby the corresponding torch is a pair of rollers 4, best shown in Fig. 2, which 555 support~l3. A pinion 21 mounted to turn in the ation. ; > - ~ 2,413,117 3 bearing 25 meshes with the teeth of the rack 25 and may be turned by a knob 28 to move the rod 24 longitudinally and thereby adjust the torch lengthwise of the billet. Simultaneous ad justment of the two torches i6 lengthwise of the ‘billet is accomplished by turning either of the 4 enough to constitute a handle 48 by means of which the movable frame 3 can be raised and lowered by hand when the clutch 39 is disen gaged. Figs. 4 to 6 inclusive illustrate a modi?cation of the motor operated means for moving the torch supporting frame 3 vertically. In this modi?ca hand wheels IE, but for fine adjustment. the knob tion’ the housing I is reversed so that the motor 23 is turned to adjust its associated torch length‘ compartment is in the front instead of the rear. wise of the billet independently of the. other The shaft 34 now extends transversely through 10 torch. the rear compartment and is rotated from the A shoe E9 is clamped to each of the torches and motor ‘30- through a disc clutch 39 in the same these shoes bear against the vertical sidewalls manner as described in connection with Figs. 1 of the billet and hold the torch tips spaced the to 3. In this case, however, the hand lever 4| desired distance from the billet walls. In Fig.1‘ a billet is represented at B but the torches are 15 ‘for operating the clutch is at the rear of the housing. In this modi?cation the ends of the shown adjusted the maximum distance apart and shaft 34 do not have pinions as in the machine therefore the shoes are not shown incontact with illustrated in Figs. 1 to 3 but are secured to arms the vertical side walls of the billet. By turning 49 located outside of the housing. The forward the cranks I5 the torches may be moved inwardly from the position shown in Fig. 1 to a position 20 end of each arm 49 is connected by means of a link 50 to the corresponding end of the vertically in which the shoes 29 contact with the vertical movable frame 3. The rear ends of the arms 49 sides of the billet and in which the tips of the carry counterweights 5|. The motor 30 is ener cutting torches are spaced the proper distance gized long enough to impart a partial revolution from the billet walls. Power for moving the frame 3 vertically on the 25 to the shaft 34 in one direction or the other to swing the arms 49 and thereby move the frame 3 upwardly or downwardly, In both forms of the invention the motor 30 may be controlled by a hand switch 52 positioned in the motor compartment and having a hand lever 53 operable at the exterior of the housing. is sufficient to note that the governor may be ad guide rails 2 is supplied by an electric motor 30 (Figs. 2 and 3) within the housing I. The motor has acentrifugal speed governor 3| which may be of the type disclosed in the patent to C. ‘T. Evans, No. 2,032,743. For the present purpose it 30 justed by turning a knob 32, positioned outside of the housing I, to cause the motor to move the frame 3 and the torches at the desired uniform cutting speed. T The housing I is preferably divided into two compartments by means of a transverse partition 33~a rear motor compartment in which the mo tor 33 is located and a forward gear compart ment. A shaft 34 turns in bearings at opposite 40 sides of the housing and extends transversely through the. forward compartment. A worm wheel 35 turns on the shaft 34 and this worm wheel meshes with a worm 36 mounted ona shaft 31 which extends rearwardly into the motor com partment where it is driven by the motor 30 through reduction gearing 38. The driving plates of‘ a multiple disc clutch 39 are connected with the worm wheel 35 and the driven plates of the clutch are splined on the shaft 34. The clutch is engaged and disengaged by means of a yoke 40 operated by a hand lever 4| positioned outside of and in front of the housing‘ I. The forward gear compartment of the housing I may be ?lled with grease up to a certain'level in accordance with the usual practice of lubri eating gear boxes. ' Limit switches may be provided for stopping the electric motor when the frame 3 has moved far enough in either direction to complete the nick ing operation. They may be associated with the machine shown in Figs. l'to 3 in a manner well understood in the art. In the modi?cation of Figs. 4 to 6 two of such limit switches are'rep resented at 54 (Fig. 6). They are actuated by an abutment 55 fastened to a rod 56 which is mounted to slide forwardly and rearwardly in the housing I. A yoke 51 secured to the shaft 34 en gages either one of a pair of shoulders 58 on the rod 55 when the shaft 34 has rotated far enough to move the torch supporting frame 3 the desired distance. The rod 55 will thereupon be shifted to cause the abutment 55 to actuate one of the limit switches 54 to stop the motor. The rod 55 and. the abutment 55 are yieldingly maintained in a neutral position by means of coil springs 59. The hand switch 52 may be a two-position starting switch and may be connected in circuit with the motor and the limit switches in a manner well understood in the art so that when the motor is stopped at the end of a nicking operation by one of the limit switches, the snapping of the switch into its other position causes the motor to rotate in the reverse direction. In either of the modi?cations the housing I Pinions 42 are secured to opposite ends of the shaft 34 outside of the housing I, as best shown in Figs. 1 and 3. These pinions mesh with verti 60 may be mounted stationarily on. a ‘suitable sup porting frame provided‘ the billet to be nicked is cally disposed racks 43 (Fig. 2) secured to the supported by a conveyor by means of which‘ the rear of the vertically'movable frame 3. Thus billet‘ may be moved longitudinally relative to when the clutch 39 is engaged the torch support ing frame 3 moves upwardly when the motor ro tates in one direction and moves downwardly when the ‘motor rotates in the other direction. The weight of the frame 3 and the parts car ried by it are balanced by means of counter weight's 44 (Fig. 1) carried at the rear ends of a pair of arms 45 which are mounted on the oppo; site ends of ‘a transverse shaft 46 rotatably sup ported on‘ top of‘the housing 1. Each arm 45 is pivotally connected near its forward end to the corresponding end of the frame '3 by means of a link 41. Each of the arms projects forwardly far the torches so that the billet can be nicked at spaced points along its length. Preferably, how ever, the housing I is supported on a carriage of any suitable type (not shown in the draw ings) which is capable of moving the entire structure shown in the drawings lengthwise of the billet. In this case the desired relative move ment between the torches‘ and the billet length wise ‘of the billet may be effected either by mov ing the carriage which supports all of the parts of the nicking apparatus or by moving the billet by means of its conveyor. ' ' 2,413,117 6 2. A billet nicking machine comprising a hous It will now be seen that thetorches may not only be adjusted transversely of the machine to ing, a pair of horizontally spaced vertical guides bring the shoes 2e into contact with the vertical secured to the housing, a frame movable verti side walls of the billet but they may also be cally along the guide means, said frame being simultaneously adjusted lengthwise of the billet horizontally elongated and adapted to extend by turning either of the hand wheels 12. In transversely across the top of the billet to be dividual adjustment of the torches lengthwise of nicked and being guided at its opposite ends on the billet to bring the tips of the torches into said guides, at least one torch holder connected exact transverse alignment may be accomplished with the frame, a torch mounted in the holder by turning the knobs 23. Individual swinging of 10 so that its tip is adapted to direct a cutting jet each torch about the axis of the stud it to move against a vertical side of a billet for nicking the tip of the torch toward or away from the such side when the frame moves vertically, a side wall of the billet may be accomplished by transverse shaft rotatably mounted in the hous turning the knob 23. As above stated, this ad ing, a motor in the housing, means for rotating justment may be made when necessary during said shaft from the motor, an actuating element the nicking operation to cause the tip of the secured to each end of said shaft outside of the torch to follow irregularities in the surface of housing, and means operatively connecting said the billet. actuating elements to opposite ends of the frame Enclosing of the motor and the parts in the to move it vertically along the guides. gear compartment to exclude grit and dirt is an 20 3. A billet nicking machine comprising a hous important feature since nicking machines are ing, a pair of horizontally spaced vertical guides used in mills under dirty conditions and where secured to the housing, a frame movable ver much of the dirt is of an abrasive nature and tically along the guide means, said frame being causes rapid wear of unprotected machine parts. horizontally elongated and adapted to extend The billet may be nicked at one place during transversely across the top of the billet to be vertical movement of the torches in one direc nicked and being guided at its opposite ends on ticn and then the billet and the torches maybe said guides, at least one torch holder connected moved relative to each other and lengthwise of with the frame, a torch mounted in the holder the billet and the next nicking operation may so that its tip is adapted to direct a cutting jet be performed by vertical movement of the torches against a vertical side of a billet for nicking in the opposite direction. However, nicking of such side when the frame moves vertically, a the billet on the upstroke only of the torches is shaft rotatably mounted in the housing and eX generally preferred. Return movement of the tending transversely thereof, a motor in the hous torches to starting position would be relatively ing, means in the housing for rotating said shaft slow if effected by the motor, but they may be from the motor, a pinion secured to each end returned to starting position quickly by throw of said shaft outside of the housing, and racks ing out the clutch 39 and moving the frame 3 to ‘ secured to opposite ends of said frame and hav starting position by hand. ing teeth meshing with the teeth of said pinions While the work~piece to be nicked is referred whereby rotation of the pinions moves the frame to herein as a billet, it will be understood that 40 vertically along the guides. the machine is not limited in its use to the nick 4. A billet nicking machine comprising vertical ing of billets but can be used for nicking other stock, such as square bars, blooms, ingots, and the like. guide means, a frame movable vertically along the guide means, said frame being horizontally elongated and adapted to extend transversely I claim: 1. A billet nicking machine comprising a hous ing, a pair of horizontally spaced vertical guides across the top of the billet to be nicked and being guided at its opposite ends on said guide means, means for moving said frame vertically secured to the housing, a frame movable ver on the guide means, a horizontally-extending tically along the guide means, said frame being guide in front of said frame and extending horizontally elongated and adapted to extend 50 lengthwise of the frame and substantially par transversely across the top of the billet to be allel thereto, guide-supporting members secured nicked and being guided at its opposite ends on to opposite ends of the guide and adjustably said guides, two torch holders connected with carried by the frame for supporting said hori the frame in position to hold torches on oppo zontally-extending guide from the frame, means site sides of a billet, torches mounted in the , on the frame for simultaneously adjusting said members to adjust the horizontally-extending holders so that their tips are adapted to direct cutting jets against opposite vertical sides of guide toward and away from said frame longi the billet for picking both of such sides simul tudinally of the machine, two torch supports taneously when the frame moves vertically, an actuating element movably mounted on the ex 60 mounted to slide transversely of the machine on said horizontally-extending guide, means for ad justing said supports along the horizontally-ex terior of said housing at each end thereof and operatively connected to the corresponding end tending guide, and a torch holder carried by of the frame for moving the frame vertically each support. along the guides, a motor within the housing, DONALD L. SMITH. and transmission means between the motor and the actuating elements and also located within 65 the housing.