US2301236A - Apparatus for operating on sheet material - Google Patents

Apparatus for operating on sheet material Download PDF

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Publication number
US2301236A
US2301236A US285649A US28564939A US2301236A US 2301236 A US2301236 A US 2301236A US 285649 A US285649 A US 285649A US 28564939 A US28564939 A US 28564939A US 2301236 A US2301236 A US 2301236A
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Prior art keywords
stock
shaft
tool
movement
dog
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US285649A
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Carl M Yoder
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Carl M Yoder
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02Advancing work in relation to the stroke of the die or tool
    • B21D43/028Tools travelling with material, e.g. flying punching machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02Advancing work in relation to the stroke of the die or tool
    • B21D43/04Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/08Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
    • B21D43/09Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers by one or more pairs of rollers for feeding sheet or strip material
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/465Cutting motion of tool has component in direction of moving work
    • Y10T83/4653With means to initiate intermittent tool action
    • Y10T83/4656Tool moved in response to work-sensing means
    • Y10T83/4667With trip-switch work-sensing means
    • Y10T83/467To initiate feed movement of tool
    • Y10T83/4673And to initiate flying movement of tool
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/465Cutting motion of tool has component in direction of moving work
    • Y10T83/4696Plural diverse flying cutters
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/465Cutting motion of tool has component in direction of moving work
    • Y10T83/4746Spring return of tool in counterfly direction
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/465Cutting motion of tool has component in direction of moving work
    • Y10T83/4757Tool carrier shuttles rectilinearly parallel to direction of work feed
    • Y10T83/4763Both members of cutting pair on same carrier
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/727With means to guide moving work
    • Y10T83/747Opposed to work-supporting surface
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/869Means to drive or to guide tool
    • Y10T83/8821With simple rectilinear reciprocating motion only
    • Y10T83/8841Tool driver movable relative to tool support
    • Y10T83/8843Cam or eccentric revolving about fixed axis

Description

Nov. 10, 1942. c. M. YODER APPARATUS FOR OPERATING ON SHEET MATERIAL Filed July 21, 1939 7 Sheets-Sheet l i7 INVENTOR. CARL M K105i? ATTORNEY.

Nov. 10, 1942. c. M. YODER APPARATUS FOR OPERATING ON SHEET MATERIAL Filed July 21, 1939 7 Sheets-Sheet 2 INVENTOR. CARL M YODER *1. nmm

I ATTORNEY.

Nov. 10, 1942. c. M. YODER A APPARATUS 'FOR OPERATING ON SHEET MATERIAL Filed July 21, 1959 7 Sheets- Sheet;

a mm INVENTOR. CARL M 609? 47M ATTORNEY.

Nov. 10, 1942. c, M, YQDER 2,301,236

APPARATUS FOR OPERATING ON SHEET MATERIAL INVENTOR. CARL M YoozR BY h /Wm ATTORNEY.

Nov. 10, 1942. c. M. YODER APPARATUS FOR OPERATING ON SHEET MATERIAL 7 Sheets-Sheet 5 Filed July 21, 1939 7 7 1 071? iii INVENTOR. A/PL M YoaER dunvm ATTORNEY.

Nov. 10, 1942. c YQDE 2,301,236

APPARATUS FOR OPERATING ON' SHEET MATERIAL Filed.July 21, 1939 7 Sheets-Sheet s I INVENTOR.

H622 CARL Ya ER it. ALVA/d21- ATTORNEY.

Nov. 10, 1942. I YQDER 2,301,236

APPARATUS FOR OPERATING on smsm" MATERIAL Filed July 21, 1959 '7 Shets-Sheet 7 v P l 55 99 96" I 5 I lls. 7

' 56'' .5 INVENTOR. CARL M W205? H6. 26 I if f&. (7511:

ATTORNEY. I

Patented Nov. 10, 1942 UNITED STATES PAT recent,

r, and

APPARATUS FOR OPERATING ON SHEET MATERIAL This invention relates to apparatus for and process of operating upon sheet metal stock, and operates either on flat stock which is feed or stock which is fed and shaped into any form in cross section, the stock being then cut into sections.

One object of the invention is to provide an improved apparatus of this character wherein moving stock is operated upon by a tool arranged to be operated intermittently, whereby adjacent sections of the stock between the portions engaged by the tool may be of equal or non-equal length.

Another object of the invention is to construct an improved apparatus of this character where in moving stock is successively cut on predetermined relatively spaced lines, whereby adjacent portions or sections defined by the cuts may be of equal or non-equal length.

Another object of the invention is to construct an improved apparatus for severing fiat stock, or stock shaped therein, into sections of uniform. or non-uniform length.

Another object of the invention is to construct an improved apparatus of this type wherein provision is made to punchor stamp a portion of the stock at uniform or non-uniform spaced points, form it into predetermined cross sectional shape and sever the stock into sections or lengths in line with selected apertures or between any two selected apertures. l

A further object of the invention is to provide an improved process wherein sheet metal stock of indefinite length is punched or stamped at uniform or non-uniform spaced points, and finally severed into sections of uniform or non-uniform length.

Another object of the invention is to construct an improved apparatus of this type wherein provision is rnade for readily changing the spacing of the apertures and/or lengths of the severed sections.

Other objects of the invention will be apparent to those skilled in the art to which my invention relates from the following description taken in connection with the accompanying drawings.

In the use of the word punching or stamping or words of like import herein I have in mind the step of slitting or up-setting the metal at and inwardly of either or both edges of the stock,

or between its edges, or blanking or notching out portions of the stock at either or both its edges or between its edges; in this connection the term tool is intended to comprehend a device capable ofefiecting any of these operations. Also, since is Claims. (01. 164-45) the mechanism for a slitting, rip-setting, blanking or notching the stock, is similar to that used for severing the stock into lengths, except for the shape of the tool and die, the term cutting and the like are to be interpretedin a broad sense, the descriptive of rather than limiting the invention. Furthermore, in thefuse herein of the term hollow bodies I have in mind tubes or pipes wherein the side edges of the stock are related, to permit the welding thereof, and other cross sectional shapes, such as supporting. columns for buildings, sash and door frames and the like, wherein the side edgesof the stock are spaced from each other, one example of both forms thereof being shown in my co-pending application filed July 25, 1938, Serial No. 221,126, now Letters Patent No. 2,234,999, dated March 18, .1941.

In the aforesaid application I have disclosed apparatus wherein the preliminary apertures or notches upon the stock control the punching or stamping. and severing mechanisms, whereby, the cuts or notches are uniformly spaced and the stock, when. finally severed, is formed into sec tions of uniform length. In the herein disclosed apparatusI have provided means which may be operated by the work or otherwise and set or arranged. to uniformly or non-uniformly space the successive apertures upon. the stock and severing means which may beoperated by the work or otherwise and set or arranged to sever the stock inv line with, selected apertured or intermediate the apertures to provide successive sections of uniform or non-uniform length.

Referring to the drawings:

Fig. 1 is a plan View of an apparatus embodying my invention;

Fig. 2 is-a side elevation.

Figs. 1 and 1a together constitute a plan View of. an apparatus embodying my invention'and I capable of carrying out the steps of my process.

Figs. 2 and 2a together constitute a side" elevationofthe apparatus. I

Fig. 3 is a fragmentary section on the line' 3-3 of Fig. 2. V

Fig. 4 is a fragmentary section on the line 4-4 of Fig. 2a.

Fig. 5 is a fragmentary plan View of parts in Fig. 6.

Fig.6 is a view (somewhat enlarged) partly in side elevation and partly in section on the line 66 of Figs. 1 and 5.

i Fig. '7 is a view of certain parts. shown in Figs. 5 and 6, but illustrating the operation thereof to effectthe cutting of the stoc Figs. 8 and 9 are sections on the lines 8-8 and 99, respectively, of Fig. 6.

Fig. 10 is a plan view showing the formation of the stock into final shape with the preliminary punching at uniformly spaced points; a channel shape being shown for illustrative purposes.

Fig. 11 is a view similar to Fig. 10, but showing the preliminary punching at non-uniformly spaced points.

Fig. 12 is a side elevation of the part shown in Figs. 10 and 11.

Fig. 13 is a section on the line i3-l3 of Fig. 12, but showing in dotted lines the progressive shaping of the stock in moving from the line x--:r to the line l3--l3.

Fig. 1a is an elevational view showing a modified form of tool locating member.

Fig. 15 is a section on the line i5l5 of Fig. 14.

Fig. 16, is a fragmentary side elevation of the machine showing certain modifications, wherein the tool locating member is driven by the moving stock.

Fig. 17 is a plan view of the construction shown in Fig. 16, parts being broken away.

Fig. 18 is a section on the line l8--!B of Fig. 16.

Fig. 19 is a detail view, somewhat enlarged.

Fig. 20 is a section on the line 2 d2d of Fig. 19.

Fig. 21 is a fragmentary view showing another modified form of construction employing a different cutter operating mechanism.

Fig. 22 is a View similar to Fig. 21, but showing the release means in operated position.

Figs. 23 and 24 are fragmentary sections on the lines 23-23 and 2d24, respectively, of Fig.

Fig. 25 is a fragmentary view (parts being broken away) showing a different modification.

Fig. 26 is a view similar to Fig. 25 but showing a different form of drive means for the tool 10- eating member or device.

In the drawings, l indicates as an entirety a supporting means on which a preliminary punching mechanism, indicated as an entirety at 2, a shaping mechanism indicated as an entirety at 3 and a final cutting or severing mechanism indicated as an entirety at 4, are mounted. For convenience in manufacture and assembly and adjustment of each mechanism as a unit relative to the other mechanisms, and also because each mechanism may be associated with various types of mechanisms, the supporting means I consists of separate supports, namely la on which the mechanism 2 is mounted, lb on which the mechanism 3 is mounted and lo on which the mechanism 4 is mounted. The support la is provided with spaced standards 5 having suitable bearings to support a shaft 5a, carrying a cam 5b to which reference will later be made. At one end the shaft 5a rotatably mounts a flywhee1.5' which is continuously driven by a belt 5a from a pulley ii on the shaft of a motor to. Between the flywheel 5 and shaft 5a is a suitable clutch for connecting the shaft to the flywheel, so that by means of control elements (later referred to) the shaft is driven and stopped at the end of one revolution thereof, the effect of which is to operate the preliminary stock engaging tool, a down stroke and an up-stroke thereof; a friction member la (see Fig. 2) bearing upon the opposite end of the shaft 5a serves to stop its rotation after its release from the driven element of the clutch. As later set forth, the punch and its co-acting die or wall serve to punch the stock at predetermined spaced positions, as determined by the control elements, such aperture making in the illustrated example consisting of centrally disposed openings (1 (see Fig.

10) spaced longitudinally of the stock, each opening being formed by the down stroke of the tool. 5 The standards 5 are provided with upwardly disposed hollow extensions 1 forming guides for slidable rods 8 carrying at their upper ends a cross head 9 and rigidly connected at their lower ends to a yoke it the sides of which are formed with elongated openings to accommodate the shaft 5a and permit the yoke to reciprocate up and down.

The lower end of the yoke H3 is provided with a depending pin H, which extends through and is guided by the walls of a bushed collar l2 suit- 1 ably seated in the top wall of the support or base la. Between the flange of the collar !2 and lower end of the yoke It and surrounding the pin H is an expansion spring 13, which normally tends to bias the yoke iii upwardly and through it to move the cross head a upwardly. Within and adjacent the lower end of the yoke I6 I mount a shaft it on which is loosely mounted a roller 1a in engagement with the cam 5b, the throw of which serves to move the yoke l3 and cross head downwardly in opposition to the spring it. The cross head 9 is provided with a depending block it between which and a plate l'i provided on the upper ends of the standards 5, are slidably mounted the die and support for a. the preliminary tool. At its forward end the plate IT is provided with brackets l8 to the outer ends of which springs i9 are anchored at one end, their opposite ends being connected to the die block or support for the die which co-acts with the tool and normally tend to move it and the tool rearwardly against a stop 29, so that when the die and tool move forwardly with the material A and are disengaged therefrom, as later set forth, they will be automatically returned to their normal position against the stop 29. At its rear end the plate H is provided with a bracket Ha which and a bracket 2a on the base to support a table 2! over which the material A moves in feeding from the preliminary punching mechanism 2 to the shaping mechanism 3, the

table 2! having a length to provide for maximum adjustment of the element, which is mounted adjacent thereto, relative to the tool and controls the operation of the clutch to effect operation of the tool.

-On their front sides, the standards 5 are provided with suitable brackets 51), which support at their upper ends a freely rotatable roller over which the stock is fed to the die.

The die preferably consists of a sectional block 22 providing an opening through which the stock feeds and walls which co-act with the tool 23 (see Fig.3) obviously more than one tool may be provided dependent upon the resulting product to be produced. The die block is mounted on a slide 23 which is provided on its opposite lower sides with inwardly extending strips arranged to engage ways or guides on the plate I! to reciprocatably mount the block on the latter; whereas the tool 23 is fixed to a slide 25 which is provided on its opposite upper sides with inwardly extendin strips arranged to engage ways or guides on the depending block it to reciprocatably mount the tool on the latter. The slides 26 and 25 are connected together for reciprocation as a unit between the plate ll and head 9 by pilot pins 26, preferably mounted in the die block 22 and telescopically fitting sleeves 26a supported in and depending from the slide 25, as shown in Fig. 3. The mounting of the die and tool as above debribed per-mits them to move forwardly with the stock or work during "operation thereon independently of the down and up stroke of the tool and also in a dvance of the down stroke of the tool, since the control elements (later referred to) for releasing the one revolution clutch are connected to and operate through the die block to drivingly connect the clutch to the shaft M, as later set forth.

The stock A is fed or moved relative to the operation performing mechanism 2 by the shaping mechanism 3, the rolls of which are driven. The mechanism 3 consists of a plurality of sets of rolls 3a suitably mounted in housings 5b, the number of sets of rolls 3a being dependent upon the cross sectional shape to be imparted to the stock and thickness thereof, as well as other conditions. The shafts for the shaping rolls of each set are geared together and drivingly connected to a shaft 21, such gearing and connections being mounted in casings Zia and the shaft 2! being driven through a suitable clutch 28 by a power means indicated at 29 (Figs. 1 and 2) deriving its power from a motor (not shown) within the support lb. The clutch Z8 is operated by the linkage 39 supported in position to be grasped by the 0perative. The shaping rolls 3a herein shown for illustrative purposes are arranged to progressively bend the lateral portions of the stock (see dotted lines in Fig. 13) to form a channel A, as

shown in full lines (Figs. 10, ll, 12 and 13). As shown in Figs. 1a and 2c, the sets of driven rolls 3a are utilized to feed the stock, that is, to draw it from a coil or other source of supply and feed it through the die '22 of the operation performing mechanism 2; but if desired the mechanism 3 may include a set of pinch rolls in front of the first set of shaping rolls.

The elements or means for controlling the operation of the cross head 9 are indicated as an entirety at 3! and comprise the following: 32 indicates a shaft'rnounted in a standard 32, which is a'djustably fixed to the support ib. That end of the shaft 532 remote from the stock support or table i provided with a sprocket 33 engaged by a chain 33a, the latter being driven by a sprocket 3:2 to the extended end of the lower shaft for the first set of rolls 3a of the mechanism 3. The other end of the shaft 32 is provided with a tool locating or metering member 35 consisting of a disk provided with one or more lugs or projections, each arranged to r leasably engage with a dog 33. By preference, the lugs 35a are disposed in an annular series on the outer face of the disk and spaced relatively to each other in any predetermined manner so as to operate the dog 35 as each passes the latter. The lugs are removably mounted on the disk, each consisting of a screw loosely supporting a roller and threaded at its inner end into an opening 351) formed in the disk. The openings 35b in the disk 35 are preferably uniformly spaced therearound to provide for the maximum number of operations of the dog to, each of winch effects operation of the cross head 9 as the disk 35 rotates, but by removing certain of the lugs, the number of operations of the dog 36 may be reduced, whereby the angular movement of the disk 35 between each lug and the succeeding lug may be increased or decreased dependent upon the space between adjacent openings or multiples thereof, such spacing between adjacent lugs determining the. spacingcf the openings a in the stock It will be understood that the disk 35 is removable from the shaft 32 so that a disk with lugs 35a mounted thereon in any predetermined order maybe substituted to avoid changing the lugs on the disk. The dog 35 is pivoted to a rod 3?, which is connected at its inner end through a plate 33a to the die block 22, so that when the dog 36 is engaged by each of the lugs 35a and moved forward thereby, the die block 22 is moved relative to the plate H in opposition to the springs 19, and the shaft 5a is connected to the one revolution clutch as later set forth. The dcgfit is pivoted to a supporting evice 33 which is adjustably fixed to the rod 37 to position the nose Elia of the dog in a predetermined relation to the lugs 35:; as they approach and recede from their uppermost position. The rod 3? is slidably supported on a plurality of brackets 35 suitably fixed to the work support 2 l. The opposite ends of a contractile spring ii) are fixed to the outermost bracket 39 and a head it-a, on the outer end of the rod 3?, this spring being put under tension when the rod 31 is moved endwise (toward the left as viewed in Figs. 1a, 5, 6 and 7) by the dog to supplement the action of the springs l? in returning the die, rod and dog to normal position after each punching operation. The dog is provided with a leaf spring 39, the free end portion of which engages the rod 3? and normally tends to swing the dog downwardly, which movement of the dog is limited by the engagement of its tail portion 3% with the lower side of the device iii Each lug 35a in its movement counter-clockwise (see Fig. 6) engages with and moves the dog 35 a predetermined distance and automatically disengages therefrom as the lug 35a continues in its path of movement. The nose may be shaped to permit its ready disengagement from each lug, but preferably the nose 35a is slightly recessed and means are provided for positively moving the nose 35a out of the path of movement of each lug at a predetermined position, these means consisting of related inclines or cams 52a, 52, provided respectively on the outer end of the dog to and the front end of a plate 42b secured by screws 52c the side wall of the work support 21.

As will be understood from Figs. 6 and 7, the engagement of the cam 42a with the cam 42 in the forward movement of the dog serves toswing the latter upwardly and thus effect the disengagement of the dogs nose 36a from each lug. Accordingly, these means (i) may be arranged to release the dog from each lug in advance of the release which would otherwise occur due to the path in which the lugs travel and (2), provide for the operation of the dog 36 and movement of the die therewith to effect actuation of the tool 23, as later set forth. As shown in Fig. 6, the side wall of the table 25 is formed with elongated slots through which the screws 42c extend, the slots permitting the plate 422) to be adjusted to accurately relate the cam 32 on its front end to the cam 42a on the dog to effect the positive release of the latter from each lug at the desired time.

As the dog 3% is connected to the rod til, the latter moves the die and tool therewith and such movement effects operation of the clutch to rotate the shaft 5a and reciprocate the tool by means of the following devices; 43 indicates a pair of spaced arms fixed to the brackets l8 and provided adjacent their outer ends with inclined walls 43a. M indicates a release member pivotally connected at its inner end to the slide 24 and disposed between the arms 43 and carrying at its outer end laterally projecting pins 45 normally disposed rearward of the inclined walls 43a and arranged to engage therewith in the forward movement of the slide, whereby the walls 43a serve to swing the release member upwardly as it moves forwardly with the slide 24. On its lower side, the release member 44 is provided with a shoulder 44a arranged to engage and swing a lever 46 suitably fulcrummed on a depending bracket iiia, when the slide is moved forwardly, as already set forth, the release member 44 then disengaging the lever 45 by reason of the engagement of the pins 45 with the inclined walls 43a, which swing the release member upwardly, as just set forth. The walls 43a ermit the release member 44 to swing downwardly into operative position, with the shoulder 44a behind the lever 46, when the slide 24 is returned or moved rearwardly by the springs E9. The other end of the lever 46 is pivoted to one end of an arm and the opposite end of the arm t? is pivot-ally connected to one endof a trip device '28, mounted to rock on a stud shaft 6-9. The trip device 68 is formed with a recess iii in which is siidably mounted a plunger Eda, an expansion spring 52 being interposed between the inner end of the plunger and the bottom of the recess and normally tending to project the plunger outwardly. As shown, the plunger 56a is disposed in engagement with a stationary pin or abutment 53, so that the expansion of the spring serves to swing the device 48 about the shaft 49, counter-clockwise as Viewed in Fig. '7, such movement being limited by the engagement of a projection 54 on the device 48 with the abutment 53, as shown. The counter-clockwise movement of the trip device 43, through the arm 41, serves to return the lever 46 to its normal position, which is predetermined by reason of the engagement of the projection 54 with the abutment 53, so as to be operatively related to the shoulder Ma when the release member is returned to its rearmost or normal position. The trip device 58 is provided with a shoulder 55, which-when the lever 4'5, arm M and trip device are in their normal positions as shown in Figs. 1a and 7lies in the path of movement of the dog 56 on a collar 56a. The collar 56a is connected to that element of the one revolution clutch 56b which controls the connection with and disconnection of the clutch from the shaft 5a. As the clutch is of well known construction, it is not illustrated in detail. As will be understood, when the dog 56 is in engagement with the shoulder 55, the clutch is ineffective and disconnected from the shaft 5a, but upon movement of the shoulder 55 to the position shown in dotted lines in Fig. '7, due to operation of the lever 46, the collar 55a will be released and thus effect operation of the clutch to rotate the shaft 5a.. As the lever 46 is released from the shoulder Ma of the release member 44 in co-ordinated relation to and immediately following the disengagement of the shoulder 55 from the dog 56, and is then returned to its normal or predetermined position under the influence of the spring 52, it will be 6 seen that the shoulder 55 is re-positioned in the path of movement of the dog 56 to arrest rotation of the collar 56a at the end of one revolution thereof, so that the clutch is released from the shaft 5a when the latter has made one revolution. The shoulder 55 is preferably mounted on a plunger til which slidably fits a recess formed in the walls of the device 38, an expansion spring being interposed between the inner end of the plunger 51 and the bottom ofthe recess and normally tending to slide the plunger outwardly, this arrangement serving as a cushion to absorb the blow incident to the engagement of the dog 56 with the shoulder 55. The plunger 51 is provided with a pin which slides in a slot formed in the walls of the device 48, the end walls of the slot serving to limit the movement of the plunger 51 in either direction.

58 indicates a guide for the stock A mounted on the support 2 I It will be understood that the mechanism 2 may be operated independently of any other mechanisms, for example, upon stock previously cut into lengths; also where shaping of the stock is not required, it may be combined with a cutoff or severing mechanism such as shown at 4. In these referred to examples, the stock may be previously shaped, in which event the opening through the die block is shaped in cross section to accommodate the shape of the stock. In these referred to examples, the tool locating member may be drivingly connected to the motor 6a or otherwise driven.

It will also be noted that the driving means between the shaft 32 and shaping roll shaft may be of any desired construction and that the speed of the shaft 32 relative to the roll shaft may be of any desired ratio to provide a predetermined relation between the rotary movement of the disk 35 and feed of the stock A so that the successive operations of the dog 36 by the lugs 35a will effect the operation of the tool to properly space the openings a.

Figs. l4, 15, 16, 17 and 18 illustrate modified forms of tool locating or metering devices. As shown in Figs. 14 and 15, the device consists of a disk 35x formed with a plurality of arcuate slots 35m in end to end relation and concentric to the disk axis and the shanks of the lugs 35a extend through the slots and are secured thereto by nuts 35, the slots permitting the lugs to be adjusted relatively to each other. The device shown in Figs. l6, l7 and 18 is later referred to.

The stock may be severed into sections by any suitable cut-off or severing mechanism 4, but preferably by a mechanism employing a tool 10- eat ng or metering device so that the severing of the stock may be on transverse lines through or between the openings and uniformly or nonunifcrmly spaced, whereby the sections may be of equal length, or certain thereof may differ in length from an adjacent section. In order to obtain these advantageous results, I have shown a severing mechanism 6, which is similar in construction and operation to the mechanism 2, the tool locating or metering device being indicated at 59 and driven by a chain 60 from the shaft for the lower roll of the last set of rolls 3a of the mechanism 3, thereby synchronizing the operation of the cutting element 6! (see Fig. 4) with the rate of feed of the shaped stock A.

In the arrangement shown, the tool locating device as is provided with twodiametrically arranged lugs 35a, so that in each revolution of this device the stock A is cut into two sections of equal length, but by changing the angular relation of one lug relative to the other lug, one severed section would be longer than the other section.

It will be understood that since the mechanism t is similar in construction and operation to the mechanism 2 it is not illustrated in detail and further description thereof appears to be unnecessary. It will also be understood that my invention is not limited to a combination wherein the mechanism between-the mechanism 2 and 4 is constructed to shape the material A, but other mechanisms may be'employed, for example, a mechanism for slitting, trimming or leveling the stock. Where such a mechanism is omitted, the tool locating member 58 for the severing mechanism may be driven by a suitable motor. In the arrangement shown, the speed of th lugs on each tool locating member approximates the speed of the stock, so that the die and cutter are moved with the stock by each lug until the dog 36 is released therefrom.

It will thus be noted that the tool locating member and the operating connections between it and the release means for the clutch 53b serve the dual function of operating the release means and moving the die and cutter with the stock during the cutting operation, until the dog 36 is released, but where other means are enployecl for effecting this fixed relation between the stock die and cutter (for example, as shown in Letters Patent No. 2,155,396 to Alexander Borzym) the operating connections may be directly related to the release means. However, I may provide between each tool locating member and its driving means, suitable means Eli for regulating the speed of the tool locating member so that the speed of the lugs in their orbit will be faster or slower than the speed of the stock to provide a predetermined spacing of the cutting or length of the severed sections; this difierential speed relation may be provided since the die and cutter beingfree to slide on the plate I7 and block it, they will move with the stock during engagement of the cutter therewith.

It will be noted however, that in all speed relations between the tool locating or metering lugs 35a and stock, the cam 42 must be so set that release of the dog 3% from each lug takes place simultaneously with or following the engagement of the cutter with the stock, to prevent rearward movement of the die and cutter (prior to such engagement) under the influence of the adjacent springs [9.

Referring to Figs. 16 to 29, inclusive, t2 indicates a tool locating or metering device keyed to a shaft 62a, which is suitably mounted in the rame is. The tool locating or metering device is provided with one or more operating lugs [33, .pre-deterrninedly spaced for the purposes as already set forth and each arranged to engage and move the dog which in turn moves the rod 37 to operate the release means as already described in connection with Figs. 1 to 13, inclusive. The tool locating or metering device is driven through a train of changeable gears by a roll 64 which engages with and is rotated by the moving stock A on the table H. The roll 64 is r movably fixed to one end of a shaft 65, which is mounted in suitable bearings provided in the ou er end of an arm 6511, the inner end of the arm being pivoted on a shaft 85 suitably mounted on the frame la, whereby the arm 65a may be operated about the shaft to insure adequate engagemcnt of the roll 34 under pressure with the stock, to effect positioning of the stock on the table 23 or to permit ready removal of the roll 64 where a roll of a different diameter is required. The shaft 55 is provided with a gear 6'! in mesh with a gear fila keyed to the shaft 63. The shaft (it is provided with a second gear 68 in mesh with a gear 69 fixed to a shaft tfia, which is suitably mounted in the frame la. The shaft 69a is provided with a second gear T8 in mesh with a gear a. fixed to the shaft 62a. As above Set forth the roll 64 and gears are removable, whereby any desired-speed of the tool locating device 62 may be provided for. By preference I provide a backing roll H below and in engagement with the moving stock, in alinement with the roll 64, so that when the latter is positioned under pressure, as later set forth, the roll 64 will be rotated by the stock without danger of slippage; the table 2| being formed with an opening Zlx t perrnit the roll H to engage the moving stock. The backing roll H is freely rotatable on anti-friction hearings on a shaft ll preferably secured to the side wall of the table 2|. For the, purpose of positioning the roll as in engagement with and under pressure against the stock, I provide on the frame is a bracket M which is formed with a threaded opening to receive an externally threaded collar iii. The collar 13 is internally threaded to receive and support an externally threaded, hollow member M forming a guide for a thrust device or plunger Ma. The upper end of the plunger Ma is provided with a transver ely disposed pin the opposite ends of which extend through elongated slots formed in a pair of spaced plates 75 and connects the plunger thereto. The upper portions of the plates 16 are connected to the opposite ends of a shaft its on which the inner end of a lever ll swings, the outer end of the lever terminating in a suitable handle. The inner end of the lever H is shaped to provide on its periphery a cam Ila the high spot of which is arranged to engage the upper end of the plunger Ma and force it downwardly when the lever I? is swung to the position shown in Figs. 16, 17 and 18, the high spot of the cam being related to the axis on which the lever ll swings to lock the lever in operated position. A screw 18 adiustably mounted in a lug 18a, provided on the lever Ti and arranged to engage one of the plates 76 serves to limit the movement of the lever so as to prevent movement of the high spot of the cam to a point where the plunger would be relieved. The opposite ends of the pin 15 pivotally support a pair of links 18 formed with elongated slots 19a throughout their outer end portions. The slots 19a receive pins til projecting laterally from the opposite sides of the lever Tl, the pins 83 and links 7% serving to connect the plunger its to the lever so that when the lever is swung upwardly following the release of the cam from the plunger, the latter will be lifted. A coiled spring 3! is interposed between the lower end of the plunger 14a and the arm a so that the roll 65 may accommodate itself to slight variations in the thickness of the stock and maintain uniform pressure thereon. The upper end of the spring 8! fits into an annular recess formed on the lower end portion of the plunger Ma to connect the spring thereto, so that when the plunger is raised, pressure of the roll 64 on the stock is relieved.

In these views I have shown a modified form of tool locating device 82 which may be employed in the form of construction shown in Figs. 1 to 13 or the forms hereinafter referred to. The device 62 consists of a main section 822) and a removable annular secticn 6% having on their opposed faces annular recesses 620 related to form a continuous slot in which the lugs 63 are adjustably and removably mounted, The section 6217' is r movably secured to the section 62b by bolts 626. As shown in Figs. 19 and 20, each lug 63 consists of a body portion 63a formed with a through opening 63 and having depending side members 83?), the outer walls of which are inclined downwardly and outwardly to fit correspondingly shaped walls of the recesses E26. The upper end of the body portion 63a is provided with a laterally extending wall fitd for engagement with the nose of the dog 36 as shown in Fig. 18. The lugs 653 may be secured in position by the annular section 62b, but to permit independent adjustment of the lugs I taper the inner side walls of the members 631) and insert therebetween a tapered pin Me which operates to spread the members 632) into clamping engagement with walls of the recesses 62 The upper end of the opening 63a is enlarged and threaded for engagement by the externally threaded head of the pin 36, so that when the latter is rotated its tapered shank is forced downwardly to spread the side members 63b.

Referring to Figs. 21 to 24, inclusive, 82 indicates the tool locating device provided with lugs 82a each arranged to engage and operate the pawl 36, which in turn moves the rod 31 endwise to eifect operation of the release means, indicated as an entirety at 53. The release means 33 control the locking and release of a shaft 8 3, which is initially rotated by springs (one being shown at tea) and power driven to complete its rotation and re-set the springs, for example, as set forth in the aforesaid Letters Patent No. 2,155,396, the rotation of the shaft serving to reciprocate the cross head (not shown) which carries the tool. In this arrangement, the shaft 85 is provided with a disk 35 having on its periphery a lug 85a arranged to engage a release device 85 carried by one arm 8'? of a lever 83. The lever $8 is fulcrumed on a shaft 39 and normally biased (counter-clockwise as viewed in Fig. 22) to the position shown in Fig. 22 by a coiled spring (see Fig. 24) against a stop Sii. Another arm Sl'a of the lever 88 is arranged to engage a shoulder on a trip device 9i (as shown in dotted lines in Fig. 21). The trip device 9i is fixed to one end of a rock shaft 92, which is normally biased (counter-clockwise as viewed in Figs. 21 and 22) against a stop 92a and carries at its other end an arm 93. The outer end of the arm 93 is arranged to be engaged by a shoulder Q3 provided on the adjacent end of the rod 37, so that when the rod is moved endwise by each of the lugs 82a on the tool locating member, the

arm 93 is swung to the position shown in Fig. 22

to rock the shaft which in turn swings the trip device at upwardly to release the ever $3. The lever $8 is operated under the influence of the spring 8% to release the lug 85a, whereby the springs S lo start the rotation of the shaft 84.

As the lug 85a approaches its starting position it engages the cam 81?) on the lever arm 87c and swings the lever 83 clockwise to move the release device 86 into the path of movement of the lug a and to position the lever arm 87a behind the shoulder on the trip device 8!, which holds the lever against counter-clockwise movement and permits the release device 86 to stop the shaft or upon engagement of the lug 35a therewith. The rod 3'5 is returned to normal position by spring 9 5a interposed between an abutment 94b and a collar 9 0 fixed to the rod 31. The shoulder 94 is provided on a fitting 9 through which the rod 31 extends the rod being threaded to take nuts 95 between and by means of which the fitting may be adjustably secured to the rod. The outer end of the arm 93 is provided with a pivoted dog 93a which is locked against movement in one direction so that the shoulder 94 may transmit its movement through the dog to the arm 93, but is free to swing in the opposite direction so as to permit it to swing in opposition to a spring 9322 and ride the shoulder 94 in the return movement of the latter.

The tool locating device 82 may be driven in the manner shown in Figs. 1 to 13, inclusive or as shown in Figs. 16, 17 and 18.

Fig. 25 illustrates a further modified form of cutting mechanism wherein the tool locating member 62a: is provided with operating lugs 633:, each arranged to operate a normally open snap switch mounted in a casing 95, as the tool locating device rotates, to close a circuit 95', in which is connected the coil of a solenoid 85a. The tool locating member 62a: is driven by a roll 91 engaging the moving stock A in opposed relation to a backing roll 91a. The roll 91 drives the tool locating device through a train of change gears (not shown) as shown in Figs. 16, 1'7 and 18. The cutting mechanism shown is similar to each of the mechanisms 2 and t, except that the trip device 43, which releases the collar 56a to eifect the connection of the one revolution clutch to the shaft 5a and re-engages the collar to disconnect the clutch from the shaft is controlled by the solenoid 96a. The snap switch may be of any desired construction. The movable element of the switch is provided with an arm 2%, the outer end of wlL'ch is arranged to be engaged by the lugs 63:0. The arm 8% is extended rearwardly and provided with spaced upper and lower lugs 9E0, Site, which straddle a stop 96w suitably fixed to the casing 96. An expansion spring Beer is interposed between the stop 95m and upper lug 96c and normally tends to bias the arm llfib counter-clockwise as viewed in Fig. 25 and thus maintain the switch in open position with the lug 96c against the stop 953:, the latter serving to limit the swinging movement of the arm under the influence of the spring 9233: to position the outer end of the arm 9% in a predetermined relation to the path of movement of the operating lugs 53a. The outer end of the arm is preferably provided with a roller with which the lug 63m engages. The solenoid may also be of any desired construction, the outer end of its core being provided with a head 88 which is pivoted to the upper end of the trip device 48. A spring 99 is coiled around the solenoid core between the head $3 and adjacent end of the coil support, the spring normally tending to swing the trip device 43 counter-clockwise, as viewed in Fig. 25, against the stop 53, to position the shoulder 55 on the plunger El in the path of movement of the dog 55 on the collar 55a. In operation, each operating lug 63x operates the switch to close the circuit 95' and energize the coil of the solenoid, the effect of which is to move the solenoid core endwise in opposition -to the tension of the spring and swing the trip device clockwise, whereby the collar Efia is released. As the solenoid coil is energized momentarily, its core is immediately released for movement in the opposite direction by the spring, whereby the shoulder 55 is re-positioned for engagement by the dog his to stop the collar 53a. The circuit 96 is supplied with current from mains 95a upon the closing of a main switch Hit. The tool locating member 629: and the mounting of the operating lugs 63:1: thereon are similar to like parts shownin Figs. 16, 18, 19 and 20.

Fig. 26 illustrates a further modified form sim ilar to that shown in Fig. 25 except that the tool locating device, indicated at Hill is driven by a chain H32 from a source of power, for example,

the roll shaft of a shaping mechanism as shown in Figs. 1 to 13, inclusive. In this form of construction, the operating lugs Etta are removably mounted as shown in Fig. 8. In the forms of construction shown in Figs. 25 and 26, the switch 96 may be located at any desired position about the axis of the tool locating device and the operating lugs may be positioned in closer relation as compared to their spacing where the lugs engage and operate a pawl.

It will be noted that I have shown in Figs. 16

to 26 several modified forms of mechanism, each of which may be adaptedto eflect a preliminary punching of the stock or severin thereof into sections.

To those ski ed in the art to which my invention relates, many changes in construction and widely diifering embodiments and applications of the invention will suggest themselves Without departing from the spirit and scope of my invention. The disclosures and the description herein are purely illustrative are not intended to be in any sense limiting.

From the foregoing description it will be noted that I provide a mecham'sm wherein the device which operates on moving stock may be controlled in any predetermined manner, by a tool locating member, to operate intermittently, whereby the stock is cut at uniformly spaced points or at points which are non-uniformly spaced. Where the apparatus consists of a preliminary operation-performing mechanism, as shown at 2, and a severing mechanism, as shown at 4, the severing device may be controlled independently of the tool for the preliminary oporation-performing mechanism so as to sever the stock into sections of uniform length or where certain thereof differ in length from other sections. In the forms of construction wherein the tool locating member is driven by the moving stock, the periphery of the roll that engages therewith may be provided with suitable fric tion material. Where yieldaole material (such as rubber) employed to increase the friction of this roll, the spring 8i (see 18) may be omitted.

What I claim is:

1. In apparatus of the class described, the combination with a support over which stock moves, a head arranged to reciprocate on said support, connected together die and work-pen forming tool slidably engaging said support and head, power means normally disconnected from said head, means actuated by the movement of said die on said support for connecting said power means to said head for operating the latter to effect operation on the stock by said tool and die, a rotatable metering member provided with lugs spaced about its axis, a rod slidably mounted on said support and connected to said die, a dog carried by said rod and arranged to be engaged by each of said lugs, whereby each lug moves the rod, die and cutter in one direction, means operated by said rod for operating said connecting means, and aspring for moving the rod, die and tool in the opposite direction.

2. In apparatus of the class described, the combination with a stationary support having guides and means for continuously feeding work relative to said support, of a reciprocatable head mounted in said guides, members slidably mounted on said support and head and connected for movement as a unit thereon, co-operating workperforming elements carried by said members, power means, mechanism normally disconnected .frcm said power means for reciprocating said head, means for connecting said mechanism to said power means, said connecting means being connected toand operated by one of said slidable members to operate said head in co-ordinated relation to the movement of said members, a. driven disk provided with a lug, connector connected to one of said slidable members and provided with a dog normally arranged in the path of movement of saidlug through a portion of its orbit, and arranged to be engaged and moved thereby to slide said members in one direction, and means for moving said members and. connector in the opposite direction.

3. In apparatus of the class described, the combination with a stationary support having guides and means .for continuously feeding work relative to said support, of a reciprocatable head mounted in said guides, members slidaoly mounted on said support and head and connected for movement as a unit thereon, co-operating workperforming elements carried by said members, power means, mechanism normally disconnected from said power means for reciprocating said head, means for connecting said mechanism to said power-means, said connecting means being connected to and operated by one of said slidable members to operate said head in co-ordinated relation to the movement of said members, a driven disk providedwith a a connector connected to one of said slidable members and provided with a pivoted dog normally arranged in the path of movement of said lug through a portion. of its orbit, and arranged to be engaged and moved thereby to slide said members in one direction, a device in the path of movement of said dog for positively disengaging it from said lug, and means for return'ng said members and connector in the opposite direction.

4. In apparatus of the class described, the cornbination with a stationary support having guides and means for continuously feeding work relative to said support, of a reciprocatable head ed on said support and head and connected for movement as a unit thereon, co-operating workperforming elements carried by said members, power mechanism normally disconnected from said power means for reciprocating said head, means for connecting said mechanism t said power means to operate said head in coordinated relation to the movement of said members. a device connected and operated by one of said lidable members for operating said connecting' is, a driven disk provided with a lug, meanscn said support for disconnecting said devicefrom said connecting means, a connector conn cted to one of said slidable members and provided with a dog normally arranged in the path of movement of said lug through a portion of its orbit, and arranged to be engaged and moved thereby to slide said members in one direction, and means for moving said members and, connector in the opposite direction.

- 5. In apparatus of the class described, the combination with a stationary support having guides and means for continuously feeding work relative to said support, of a reciprocatable head mounted in said guides, members slid-ably mounted on said support and head and connected for movement as a unit thereon, co-op-erating work-performing elements carried by said members, power means, mechanism normally disconnected from said power means for reciprocating said head, means for connecting said mechanism to said power means, to operate said head in co-ordinated relation to the movement of said members, cc-acting devices, one carried by said support and the other connected to one of said slidable members, for cotrolling the operation of said connecting means, a driven disk provided with a lug, a connector connected to one of said slidable members and provided with a dog normally arranged in the path of movement of said in; through a portion of its orbit, and arranged to be engaged and moved thereby to slide said members in one direction, and means for moving said members and connector in the opposite direction.

6. An apparatus as claimed in claim 2, wherein the disk comprises a member formed with an annular series of transverse openings and. lugs removably mounted in certain or all of said openings.

7. An apparatus as claimed in claim 2, wherein the disk comprises a member formed with arcuate slots disposed in end to end relation about its axis and one or more lugs are adjustably mounted in each slot.

8. An apparatus as claimed in claim 2 wherein the drive means for the disk consist of a roll engaging with and driven by the stock.

9. An apparatus as claimed in claim 2 wherein the drive-means for the disk consists of alined rolls engaging opposite sides of the stock and driven thereby, one of said rolls being drivingly connected to said disk means for operating the latter, and means for movably mounting one of said rolls, said mounting means including devices for effecting pressure of the adjacent roll against the stock.

19. An apparatus as claimed in claim 2 wherein the drive means for the disk consists of a removable roll engaging with and driven by the stock and change gears between said roll and said disk for driving the latter.

11. An apparatus as claimed in claim 2, where in the disk comprises a main section and a removable annular section, said sections being formed with related recesses forming a continuous circumferential slot, operating devices mounted, in said slot and means for adjustably securing each device to the walls of said slot.

12. In apparatus of the class described, the combination with a work-performing mechanism for forming apertures in continuously moving stock and power means normally disconnected from said mechanism, of release means between said mechanism and said power means and capable of connecting said power means to said mechanism, means, including an element movable independently of the moving stock, for operating said release means, separate mechanism for severing the stock into sections, power means operable independently of said first mentioned power means and normally disconnected from said severing mechanism, release means between said severing mechanism and said last mentioned power means and capable of connecting said power means to said severing mechanism, and means, including an element movable independently of the moving stock, for operating the last mentioned release means.

13. In apparatus of the class described, the combination with means for continuously feeding work, of mechanism for operating on the moving work, power means normally disconnected from said mechanism, a rotatable member provided with lugs, means for rotating said member, devices for connecting said power means to said mechanism, one of said devices being arranged to be successively engaged and actuated by said lugs, separate mechanism for severing the work during movement thereoi. power means normally disconnected from said severing mechanism, a rotatable member provided with lugs, means for rotating the last mentioned member, and devices for connecting said last mentioned power means to said severing mechanism, one of said devices being arranged to be successively engaged and actuated by the lugs on the last mentioned rotatable member.

14. The herein disclosed process, employing a flying stamping element and a flying severing element, which process consists in supplying sheet material and continuously feeding it relative to the stamping and severing elements, then in intermittently operating the flying stamping element independently of the moving material to stamp therein openings spaced longitudinally of the sheet material, and finally intermittently operating the flying severing element independently of the moving material to sever the sheet material into sections.

15. In apparatus of the class described, the combination of mechanism including a workperforming element for operating on continuously moving stock and power means normally disconnected from said mechanism but arranged when released to impart a flying motion to said work-performing element, release means between said mechanism and said power means and capable of connecting said power means to said mechanism, and means, including an element movable independently of the moving stock for operating said release means.

16. In apparatus of the class described, the combination of mechanism including a workperforming element for operating on continuously moving stock and power means normally disconnected from said mechanism but arranged when released to impart a flying motion to said work-performing element, release means between said mechanism and said power means and capable of connecting said power means to said mechanism, means, including an operating element connected to said release means and an element movable independently of the moving stock arranged to engage and move said operating element, for operating said release means, and a device arranged in the path of movement of said operating element for disengaging it from said last mentioned element.

CARL M. YODER.

CERTIFICATE OF C ORRECTI ON Patent No. 2,561,236. November 10, 9M-

CARL M. YODER.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 1, secondlcolumn, line 1, strike out "a" after "for"; line 6, for "the" before descriptiirefread -and-; 1 837, second column, line 7, claim 2, before "connector" insert -a-;. page 8, first column, line L, claim 5, for trp g" read. ig' i claim 9, strike out the word "means" and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent- Office.

" 'Signed and sealed this 5th day of January, A. D. 1915.

Henry Van A'rsda le,

(Seal) Acting Commissioner of Patents.

US285649A 1939-07-21 1939-07-21 Apparatus for operating on sheet material Expired - Lifetime US2301236A (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423698A (en) * 1944-09-12 1947-07-08 John W Hallman Strip working apparatus
US2650635A (en) * 1948-07-12 1953-09-01 Motor Products Corp Apparatus for producing metal parts
US2691204A (en) * 1948-07-12 1954-10-12 Motor Products Corp Apparatus for producing metal parts
US2789639A (en) * 1950-09-09 1957-04-23 Lorentzen Hardware Mfg Corp Method useful in the manufacture of venetian blinds
US2854939A (en) * 1953-10-01 1958-10-07 Nat Electric Prod Corp Apparatus for making electrical outlet boxes with automatic operation
US3081657A (en) * 1959-05-06 1963-03-19 Robertson Co H H Longitudinally reciprocating measuring means and strip treating apparatus
US3180294A (en) * 1961-12-06 1965-04-27 Konink Metaalfab V H J N Daald Eccentric press with feeding mechanism
US3322011A (en) * 1964-06-15 1967-05-30 Yoder Co Flying punch
US3332675A (en) * 1964-06-09 1967-07-25 Raymond Int Inc Cutting metal tubing
US3656385A (en) * 1970-03-10 1972-04-18 Certain Teed Prod Corp Apparatus for machine forming extruded plastic siding
US3704643A (en) * 1969-11-25 1972-12-05 Cookson Sheet Metal Dev Ltd Flying shear
US3797428A (en) * 1971-03-29 1974-03-19 H Nordgren Method for making corner or edge plates for cases, packing, containers or other receptacles and a plant for carrying through the method
US4179962A (en) * 1978-06-01 1979-12-25 Butler Manufacturing Company Combined flying cutoff and punch

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423698A (en) * 1944-09-12 1947-07-08 John W Hallman Strip working apparatus
US2650635A (en) * 1948-07-12 1953-09-01 Motor Products Corp Apparatus for producing metal parts
US2691204A (en) * 1948-07-12 1954-10-12 Motor Products Corp Apparatus for producing metal parts
US2789639A (en) * 1950-09-09 1957-04-23 Lorentzen Hardware Mfg Corp Method useful in the manufacture of venetian blinds
US2854939A (en) * 1953-10-01 1958-10-07 Nat Electric Prod Corp Apparatus for making electrical outlet boxes with automatic operation
US3081657A (en) * 1959-05-06 1963-03-19 Robertson Co H H Longitudinally reciprocating measuring means and strip treating apparatus
US3180294A (en) * 1961-12-06 1965-04-27 Konink Metaalfab V H J N Daald Eccentric press with feeding mechanism
US3332675A (en) * 1964-06-09 1967-07-25 Raymond Int Inc Cutting metal tubing
US3322011A (en) * 1964-06-15 1967-05-30 Yoder Co Flying punch
US3704643A (en) * 1969-11-25 1972-12-05 Cookson Sheet Metal Dev Ltd Flying shear
US3656385A (en) * 1970-03-10 1972-04-18 Certain Teed Prod Corp Apparatus for machine forming extruded plastic siding
US3797428A (en) * 1971-03-29 1974-03-19 H Nordgren Method for making corner or edge plates for cases, packing, containers or other receptacles and a plant for carrying through the method
US4179962A (en) * 1978-06-01 1979-12-25 Butler Manufacturing Company Combined flying cutoff and punch

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