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I-4 S Aap7a/Uva M7, 4Owg June 23, 1953 A. H. LONG 2,642,663 MEASURING AND CUTOFF MACHINE Filed Dec. 8, 1949 4. Sheets-Sheet 1 P Y M I-4 ISal N4 SR/ s SS N INVENTOR, S aap7A/Uva M7, 4owG A/S az7Oaway? June 23, 1953 A. LONG 2,642,663 MEASURING AND CUTOFF MACHINE Filed Dec 8, 1949 4. Sheets-Sheet 2 27, 3 INVENTOR. aa 7A/va A. Zowc 72.26-4- a//s arroa way June 23, 1953 A. H. LONG 2,642,663 MEASURING AND CUTOFF MACHINE Filed Dec. 8, 1949 4. Sheets-Sheet 3 NxSNRS N it as2 N 2 INVENTOR. 22.26-z-alaza/va A. 4 owG. A/S a770awarf June 23, 1953 A. H. LONG 2,642,663 w MEASURING AND CUTOFF MACHINE Filed Dec. 8, 1949 4. Sheets-Sheet 4 INVENTOR, aa 7A/va M7, 4 oMG 2,2'-262-2s a/s arreama/ Patented June 23, 1953 2,642,663 UNITED STATES PATENT OFFICE MEASURING AND CUTOFF MACHINE Arthur H. Long, Pittsburgh, Pa., assignor to Wm. K. Stamets Company, Pittsburgh, Pa., a cor poration of Pennsylvania Application December 8, 1949, Serial No. 131,739 9 Claims. (C, 33-132) 1. 2 This invention relates to a machine for mea Referring first to Fig. 1, the tube measuring Suring and cutting off lengths of linear material device and cutoff machine are shown intermedi such as strip, bar stock, pipe or other material ate of the inlet table and outlet table. The inlet generally measured and cut in linear lengths. table is marked I and the outlet table is marked The lengths of materia. Such as pipe are noved s O and the measuring device is indicated at MI longitudinally along a table to a measuring de and the cutoff machine is indicated at C. - The vice Where it, Strikes a flag SWitch Which causes inlet table is made up of a series of stands 2, each its travel Speed to be reduced and then the pipe . having a pipe feeding roll 3 and 4 journaled strikes a bumper that initiates a circuit causing therein and provided with an automatic feeding the pipe to become engaged by a measuring roll 10 device, indicated by the , alternately actuating that rotates an electromagnetic means to nea elevators 6 and which are operated from a com Sure off a predetermined pipe length as it pro mon lever attached to the shaft 8 and operated ceeds to a cutoff machine. When the pinch rol by Suitable means such as a fluid cylinder which engages the pipe, the electromagnet becomes en Oscillates the shaft to alternately raise the ele. ergized and attracts a tripping mechanism that Vator members 6 and 7 above the skid surface rotates with the magnet until the pipe has 5 for conveying tubes from a series of rollers. 4 traveled a predetermined distance in measuring to a series of rollers 3, from whence the tube off a specific length, at which time the tripping is moved longitudinally by rotating the series of mechanism is energized causing the pipe to be rolls 3 and 4 by their respective motors O. Both clamped in a wise which in turn opens the mea of the motors O are energized through a single suring pinch roll and starts the cutoff machine. control to operate them in unison at their high The cutoff machine functions to automatically or low Speed, or to stop them, which control may retract the cutters when the pipe is cut off and be readily and accurately determined. then move the cut length of pipe at high speed The measuring device M consists of two sets of from the cutting machine and initiate an index 2 5 feed rolls i? and 2, 3 and 4, together with the to feed another section of pipe in its place for idler pinch rolls 5 and 6 that are above the cutting. rolls f l and 3. When the tubing is moved longi This machine is also employed for measuring tudinally to the rolls ft and 3, stops 7 and 8 and cutting off the crop ends of a pipe, bar stock are raised by a single crosshead so as to be placed or other similar articles at a predetermined dis 30 in the path of the tubing in each line causing it to tance from its end. stop. When the front end of the tubing engages Other objects and advantages appear in the and passes over the switches 9 and 20, all of following description and claims. the motors O are reduced in speed. Just before The accompanying drawings show, for the pur the end of the tubing strikes the stops 7 and 8, pose of exemplification without limiting the in 35 it also strikes the switches 2 and 22 which fur vention or claims thereto, certain practical en ther reduces the speed of the motors to to sub bodiments of the invention. Wherein: stantially nil With just enough voltage thereon to Fig. 1 is a plan view of a mill layout showing maintain the tube against the stops 7 and 8, the relative position of the measuring device and but prevent the rolls from turning under the the cutoff machine; 40 weight of the tubing. The sequential operation Fig. 2 is a view in side elevation of the struc of the SWitches will be discussed later; however, ture shown in Fig. 1; the pinch rolls 5 and 6 are caused to be lowered Fig. 3 is a view in front elevation of the mea When the tubing strikes the stop and since the Suring machine; measuring rolls 23 and 24 are mounted on the Fig. 4 is a view in side elevation of the measur 45 Same Crosshead, they all come down at the same ing device and the cutoff machine; time. Both the idler pinch rolls 5 and 6 and Fig. 5 is an enlarged view in front elevation the measuring rolls 23 and 24 engage the upper of the target and the scanning disc of the mea Surface of the tubing when the stops 7 and 8 Suring device; are retracted and the tubes continue on their for Fig. 6 is a sectional view taken through the 50 Ward paSS through the fore gripping jaws 25 and axis of rotation of the scanning disc; 26 and through the cutoff machines 27 and 28 Fig. 7 is a front elevation of a dual cutoff and the aft gripping jaws 29 and 30 to the outlet machine shown in Fig. 1; and table illustrated by the sets of rolls 3 and 32 Fig. 8 is a side elevation of the dual cutoffma driven by the motors 33 in a manner very similar chine shown in Fig. 1. SS to that of the inlet table. When the tube passes 2,642,668 3 - on to the outlet table, its crop end will proceed direct current or rectified current as the coil 54 a predetermined distance determined by the is designed to operate, in this particular in measuring device M, which stops the motors fo stance, on direct current. and 33 and the rolls whereupon the fore and aft The annular cylindrical housing 5 is closed by clamping jaws 25, 26, 29 and 38 close on their 5 the annular disc 60 on the front thereof, which respective tubes and the cutoff machines 2 and disc is provided with an outwardly extending 28 cut the predetermined crop end of pipe from sleeve 6 f. that carries the bearings 62 therein for the tubing. When the cutters have cut through the purpose of rotatably supporting the shaft, 63. the pipe, they are retracted to their original posi The inner end of the shaft 63 is provided with a tion which trips a switch to open the fore and aft 10 pendulum member 64, the hub of which is secured chucks and start the table notors 0. The to the shaft and which extends radially outwardly cropped end slides down a chute onto a conveyor to a point Opposite the air gap formed by the an as shown in Fig. 2. The motors 33 are speeded nular discs or magnetic pole faces 52 and 53. The up to quickly take the cut section of pipe away outer end of the pendulum 64 is provided with a from the cutoff machine. The measuring device 5 transverse opening to receive the pin 65 having a may be set to again measure the next section of flat head 66, the pin preferably being inade of pipe which proceeds through the cutoff machine nonmagnetic material, but the head being inade to the outlet table. However, the to-length gauge of magnetic material. Thus, when the coil 58 is 9, which is adjustable along the outlet table, func energized, it will attract the outer end of the pin tions to stop the tubing at a predetermined dis 20 and cause the pendulum to rotate with the coil. tance for multiple lengths after cropping and it A Socket is provided adjacent the hub of the initiates the operation of the cutoff machine. The pendulum to receive the ball 6 and the spring 68 outlet table carries the cut sections of pipe to a which forces the same against the inner face of predetermined distance determined by a series of the cover 60, there being an indentation 69 below switches, after which time they are raised from 25 the hub of the pendulum in the surface of the their respective rolls and are discharged laterally plate to receive the ball 67 for the purpose of .
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