US786053A

US786053A - Metal-shaping machine.

Info

Publication number: US786053A
Authority: US
Inventors: William Ross
Original assignee: Individual
Current assignee: Individual
Priority date: 1903-02-09
Filing date: 1903-02-09
Publication date: 1905-03-28
Anticipated expiration: 1922-03-28

Description

PATENTED MAR. 28,1905.

W. ROSS. METAL SHAPING MACHINE,

APPLIOATION IILED FEB. a, 1903.

8 SHEETS-SHEET-Z. 75 5,

UNITED STATES Patented March 28, 1905.

WILLIAM ROSS, OF MONTREAL, CANADA.

METAL-SHAPING MACHINE.

SPECIFICATION forming part of Letters Patent l\l'o. 786,053, dated March 28, 1905.

Application filed February 9, 1903. Serial No. 142,683.

To all whom it may concern.-

Be it known that I, NILLIAM Ross, of the city of Montreal, Province of Quebec, Canada, have invented certain new and useful Improvements in Metal-Shaping Machines; and I do hereby declare that the following is a full, clear, and exact description of the same.

My invention relates particularly to metalforming machines of the type disclosed in my pending application, filed September 29, 1902, Serial No. 125,259; and it has for its object to apply the invention therein disclosed to a machine whereby a metallic article, such as a metal beam, may be coped or snipped or any desired shape imparted thereto in a like manner.

The invention may be said, briefly, to consist of a movable slotted die-block having the side edges of said slot provided with knifeedges and a stationary supporting member presenting cutting edges conforming to the cutting edges of said slot and adapted to support the metal to be shaped by cutting in the path of said movable die-block.

The invention also consists of a particular arrangement of cutting edges consisting of a straight front edge, a diagonal side edge arranged a short distance from one end of said front edge, a side edge at right angles to and abutting said front edge, and a double cutting edge also at right angles to and centrally of said front edge, thus forming a female die. A male die works in conjunction with the female die and is formed to present cutting edges conforming to and adapted to be received within the space inclosed by said cutting edges just mentioned. This male die is preferably carried by one end of a lever and may be divided and half carried by one end of each of a pair of levers, the opposite ends whereof may loe operatively connected to any approved form of power device; but I prefer to utilize a power device of the type described iin ilny said pending application sligh tly-modi- The present embodiment of my improved power device comprises a stationary cylinder communicating with the pump or other means -for supplying water under pressure and having an exhaust-pipe communicating With said cylinder and leading to the said supply of water under pressure, said exhaust-pipe being controlled by a valve. A piston slidable in this cylinder is connected to the end of the operating-lever, and one ora pair of cylinders, each having a piston slidable therein, is permanently in communication with an air-supply held under a pressure sufficiently to raise the forward end of the lever and the male die carried thereto.

For full comprehension, however, of my invention reference must be had to the accompan yingdrawings, forming a partof this specification, in which similar reference characters indicate the same parts, and wherein- Figure 1 is a side elevation of my improved machine. Fig. 2 is a plan View thereof. Fig. 3 is a transverse vertical sectional view taken on line A B, Fig. 2; Fig. 4, a transverse vertical sectional view taken on line C D, Fig. 2. Fig. 5 is a plan view of a female cuttingdie constructed according to my invention. Fig. 6 is a perspective view thereof. Fig. 7 is a longitudinal vertical sectional view thereof, taken on line E E, Fig. 5. Fig. 8 is a sectional view of the valve. Fig. 9 is a plan view of the cutting'face of a male die adapted to act in conjunction with said female die. Fig. 10 is a longitudinal vertical sectional view of my improved machine. and Fig. 11 is a diagrammatical view illustrating particularly the connections between the cylinders of my improved machine and the hydraulic and pneumatic pressure devices.

The frame of my improved machine is formed with a pair of pillow-blocks b, in which a shaft 0 is supported and upon which a main operating hydraulic cylinder 6, having its upper end open, is supported, while the pneumatic cylinders f for providing the countervailing force whereby the parts are returned to their normal positions are supported partially upon said bed at each side of the hydraulic cylinder and partially upon lateral extensions g of the top of said bed. Extending across the front of the pillow-blocks is a hollow worksupport 72 having the female-die frame secured to the top thereof.

The operating-lever j is fulcrumed upon the shaft 0, and the front end thereof carries the male die, while the opposite end is forked, as at 76, and cored out transversely to receive a g tsetse pivot-pin upon which the upper end of a pitman m is pivoted, the lower end being pivotally connected, as at 1/, to a cylindrical piston u, slidable in the hydraulic cylinder (1. The pivot-pin Z is of sufficient length to project beyond each side of the lever, and said projecting ends are tapered, while the ends of the straight middle portion of the pin are threaded to receive tapped collars 5, adapted to prevent lODgllJlMlll'lttl displacement of the pin when it is in place.

The upper ends of the pneumatic cylinders are closed by caps p, through which pistonrods 1 project, pistons within these cylinders being connected to the lower ends of said piston-rods, and the upper ends of the latter are pivotally connected by links s to said projecting ends of the pivot-pins. The cylindrical piston in the hydraulic cylinder is packed by means of a circular sheet 2 of packing material, preferably leather, stretched over the inner end thereof and held in place by a flared ring 3, over the outer perimeter whereof the edge 4 and the portion contiguous thereto of the packing material or washer is stretched and effects a tight packing between the piston and the interior of the cylinder. This ring is in turn held in place by a cross-piece 5, secured to the end of the piston by a screw 6.

A water-conducting pipe 10 leads from the outlet-port of a pump (indicated at 11) or other means for supplying water under pressure to the lower end of the hydraulic cylinder 0, and an exhaust-pipe 12, preferably of larger capacity than the pipe 10, leads from said lower end of this cylinder to the suctionport of the pump. The exhaustpipe is controlled by a valve which is adapted to be closed by the operator and opened automatically by the machine, and to this end it is divided and its separated ends connected to the inlet and outlet ports, respectively, of a valvecasing 15, having a pair of

chambers

16 and 17 connected by a contracted passage 18. The valve proper consists of a plug .19, having one end, 20, longitudinally slotted and transversely perforated and its other end diminished, thus forming an annular shoulder, and longitudinally grooved to provide valvular ducts 21, while the end of this diminished portion is furnished with a disk 22, said diminished portion, the disk, and the contracted passage in which said diminished portion is located being of corresponding diameter. The slotted end of the plug straddles and is pivotally connected, as at 23, to a lever 24, fulcrumed upon a link 25, pivotally connected to the valve-casing, the function of the link being to compensate the different movements of the valvular plug and the lever 24. A pair of

treadles

27 and 67 are rigidly secured upon a rod 68, bearing in the frame of the machine. One end of the lever 24 is connected by a link 26 to the treadle 27, and the other end thereof is beveled to constitute a latch and is normally yieldinglysupported by a retractile spring 28. A bell-crank lever 29 is fulcrumedto the machine-frame adjacent to said lever 24 and hasone arm notched, as at 30, to at times receive the beveled end thereof, and the end of its other arm is connected by a link 31, variable in length and slotted, as at 32, at its upper end, to the operating-lever of the machine by having said slotted end of the rod take over a projection 33 upon the lever. By depressing the treadle the annular shoulder of the valve will be seated upon the upper end of thecontracted passage 18, thereby causing the water under pressure to accumulate in the hydraulic cylinder and move the piston 0 and consequently the operating-lever simultaneously. As this lever completes its movement the bell-crank lever will be moved, thus releasing lever 24 and allowing the valve to be opened by spring 28. By increasing the length of link 31 greater thickness of metal can be cut, and when its length is varied the stop for limiting the return movement of the lever should also be adjusted.

The male and female dies, wherein resides the principal feature of this invention, are, as before mentioned, carried, respectively, by the operated endof the main lever and the work-suppo1':t. The female die consists of a main member of a form to present three walls 35, 36, and 37, respectively, a central bar 38, and openings 39, the wall 35 extending transversely of the machine, the wall 36 at right angles to 35, and the wall 37 at an obtuse angle thereto and disposed a short distance therefrom. Cutting members, preferably in the form of an end and two side cutting-

blades

40, 41, and 42, respectively, are secured to said walls by belts or otherwise and are supported at their lower edges upon ledges 43, integral with the lower edges of the said walls, wh ile a central member, preferably in the form of a straight cutting-blade 45 of dovetail crosssection at its lower edge, is set in a dovetail slot in the top of the central bar of the main member. The female die thus constituted is secured by belts or otherwise upon the top of the hollow work-support. The male die consists of the operated end of the main lever faced with cutting members. In order to enable either one-half or the whole of the die to be operated at once, the operating-lever is divided, and a portion 59, constituting approximately on e-half of the forward end thereof, is detachably connected thereto by a belt 151, n'ojecthig also through the main portion of the lever. This pin may be removed and the main portion of the lever operated alone. The cutting members mounted upon the faces of these lever parts consist of a plate 52, carried by the detachable part and conforming to the space inclosed by the

blades

40, 42, and 45, while the other member consists of a plate 53, carried upon the main lever part and conforming to the space inclosed by the

blades

10, 41, and 4:5.

The compressed-air cylinders are connecte at their upper ends by a branched pipe 50 to a tank 51, wherein a pressure is maintained suflicient to return the lever and its operating parts to their normal positions when the valve is opened.

In order to enable beams or other articles of heavy hardware to have portions of varying and predetermined length in one direction cut therefrom with precision, I provide a gage to localize the article to be cut relatively to the disks. This gage consists of a slotted bar 55, having an arm 56 projecting downwardly at an obtuse angle from the front end thereof, while it is adjustably secured by a pair of screws 57, with the bar resting upon the top of the main portion of the lever and the arm projecting into the slot.

A. stop is provided to limit the return movement of the main lever and consists of a screw-bolt 65, threaded through a bracket 66, secured to the base of the machine.

The operation of my improved machine is as follows: The gage is first adjusted to limit the extent to which the beam or other article to be cut may be inserted between the male and female dies. If the flanges on both sides of one edge and adjacent to one end of the web of an I-beam are to be cut off and the web left intact, with its side edges beveled, as is necessary when a beam with its end shaped to fit between the flanges of a second beam is required, the end of the beam should be pushed in until it meets the gage. Upon the treadle being then depressed by the operator the valve will be closed and the water under pressure. Then as the pressure in the cylinder increases the two parts of the male die will force the portions of the flanges in their path into the female die, through which and the hollow work-support they will fall to the floor. As the lever completes the movement which causes the male die to perform its work the valve, which has been closed by the operator, will be released, as before pointed out, and the valve allowed to open, thus causing a reduction of the pressure in the cylinder and enalbling the pneumatic cylinders to lift the male c 1e.

I do not herein claim, broadly, my improved means for actuating my machine, as such means form the subject-matter of a separate application flled by me under Serial No. 150,081, filed March 28, 1903.

What I claim is as follows:

1. In a metal-cutting machine, a work-sup: porting member presenting a transverse vertical punch-blade parallel to and between two of the side edges thereof, said blade presenting shearing edges at its top, a movable die having a pair of cutting members rigidly mounted thereon with a space between them adapted to receive said punch-blade and having the side edges of the slot therein provided with shearing edges to coact with the shearing edges upon said blade, and means for moving said movable die to and from engaging position with said blade.

2. In a metal-cutting machine, a work-supporting member presenting a pair of side walls, a wall extending from the end of one of such side walls toward the corresponding end of the other, a metal punch-blade extending at an angle to the last-mentioned wall and between the pair of walls, shearing-blades carried upon the inside edges of the walls and formed upon both sides of the top of the punch-blade, a movable die having a pair of cutting members rigidly mounted thereon with a space between them to receive the punch-blade and being of a width to fit into the space inclosed by the walls, a series of shearing-blades mounted upon the sides of the slot and upon the sides of the die corresponding to such walls, the shearing-blades of said die being adapted to coact with the shearing-blades upon the walls and punch-blade of the work-support, and means for moving said die to and from engaging position with said walls and punch-blade of the work-support.

8. In a metal-cutting machine, a work-supporting member presenting a pair of side walls, a wall extending from the end of one of such side walls toward the corresponding end of the other, a vertical punch-blade extending at right angles to the last-mentioned wall and between the pair of walls, shearing-blades carried upon the inside edges of the walls and formed upon both sides of the top of the pushblade, a movable die having a pair of cutting members rigidly mounted thereon with aspaee between them adapted to receive the punchblade and being of a width to fit into the space inclosed by the walls, a series of shearingblades mounted upon the sides of the slot and upon the sides of the die corresponding to said walls, the shearing-blades of the die being adapted to coact with the shearing-blades upon the walls and punch-blade of the worksupport, and means for moving the die to and from engaging position with the walls and punch-blade of the work-support.

4:. In a metal-cutting machine,an open worksupporting member presenting a pair of side walls and a wall extending from the end of one of the side walls to the corresponding end of the other, a rib extending from the last-mentioned wall and between the pair of walls, shearing-blades carried upon the inner sides of the walls and upon both sides of the central rib, the work-support having passages extending downwardly therethrough from the spaces inclosed by the walls and rib, a movable die having a pair of cutting members rigidly mounted thereon with a space between them adapted to receive the rib and being of a width to fit between the walls, a series of shearing-blades mounted upon the sides of the slot'and upon the sides of the die corresponding to the walls, the shearing-blades of the die being adapted to coact with the shearingblades upon the walls and rib of the worksupport, and means for moving the die to and from engaging position with the walls and rib of the work-support.

5. Inametal-cuttingmachine,an open Worksupporting member presenting a pair of side walls and a wall extending from the end of one of such side walls to the corresponding end of the other, a rib extending at right angles to the last-mentioned wall and between the pair of walls, shearing-blades carried upon the inner sides of the walls and upon both sides of the central rib, such work-support having open passages extending downwardly therethrough from the spaces inclosed by the walls and rib, a movable die having a pair of cutting members rigidly mounted thereon with a space between them adapted to receive the rib and being of a width to fit between the walls, a series of shearing-blades mounted upon the sides of the slot and upon the sides of the die corresponding to the said walls, the shearingblades of the die being adapted to coact with the shearing-blades upon the walls and rib of the work-support, and means for moving the die to and from engaging position with the walls and rib of the work-support.

6. In a metal-cutting machine, a work-supporting member presentinga pairof side walls disposed at an angle to one another, a wall extending from the end of one of the side walls to the corresponding end of the other, a rib extending at right angles to the last-mentioned Wall between such pair of walls and parallel to one of them, shearing-blades carried upon the inside edges of the said walls and upon both sides of the rib, a movable die having a pair of cutting members rigidly mounted thereon with a space between them adapted to receive said rib and conforming in contour to the space inclosed by said walls, a series of shearing-blades mounted upon the sides of the slot and upon the sides of the die corresponding to the said walls, the shearing-blades of ,the die being adapted to coact with the shearing-blades upon the walls and rib of the worksupport, and means for moving the die to and from engaging position with the walls and rib of the work-support.

7. In a metal-cutting machine, the combination with a work-supporting member presenting a metal-working tool of a divided oscillatory member, a pair of metal-working tools, one mounted on each of the divided parts of the oscillatory member, and said last-mentioned tools being adapted to coact with the metal-working tool of the work-support, and means for oscillating one or both of the divided parts of the oscillatory member to and from the work-support.

8. In a metal-cutting machine, the combination with a work-supporting member presenting a shearing device of a divided movable member having the divided parts thereof rigidly secured thereto, a pair of shearing devices, one mounted on each of the divided parts of such movable member, and the lastmentioned shearing devices being adapted to coact with the shearing device of said worksupport, and means for moving one or both of the divided parts of the movable member to and from the work-support.

9. In a metal-cutting machine, the combination with a work-supporting member presenting a series of shearing edges, of a divided movable member, a pair of shearing devices, one mounted on each of the divided parts of the movable member, and the shearing devices being adapted to coact with the shearing edges of the work-support, and means for movingone or both of the divided parts of the movable member to and from the work-support.

10. The combination with a stationary part carrying a cutting device and a reciprocative part carrying a cutting device to coact with the first-mentioned cutting device, of a cylinder, a piston slidable therein, an operative connection between the piston and reciprocative part, a device for supplying water under pressure, a water-conductor leading from such device to the cylinder, a second water-conductor leading from the cylinder back to the water-supplying device thus forming a complete circuit, a valve controlling the last-mentioned pipe at a point near its junction with the cylinder, a cylinder, a piston located in the cylinder last mentioned, means operatively connecting the piston to the reciprocative part, a compressed-air supply and an air-conductor leading from the air-supply to the cylinder last mentioned, for the purpose set forth.

11. The combination with a stationary part carrying a cutting device, and a reciprocative part carrying a cutting device to coact with the first-mentioned cutting device, of a cylinder, a piston slidable therein, an operative connection between the piston and the reciprocative part, a device for supplying water under pressure, a waterconductor leading from the supplying device to the cylinder, a second water-conductor leading from the cylinder back to the water-supplying device thus forminga complete circuit, a valve controlling the last-mentioned pipe at a point near its junction with the cylinder, a cylinder, a piston located in the cylinder last mentioned, means operatively connecting the piston to the reciprocative part, a compressed-air supply and an air-conductor leading from such air-supply to the cylinder last mentioned, for the purpose set forth.

12. In a metal-cutting machine, the combination with a work-support consisting of a female die, of a lever fulcrumed adjacent to one end comprising a main part and an auxiliary part, the short ends of the main and auxiliary parts of the lever conjointly constituting a male die adapted to coact with the female die, means operatively connected to the opposite end of said lever for rocking the same, and means detachably securing the auxiliary part to the main part to cause the main and auxiliary parts to act in unison or one Without the other.

13. In a metal-cutting machine, the combination with a work-support consisting of a female die, of a lever fulcrumed adjacent to one end and comprising a main part and an auxiliary part, the short ends of the main and auxiliary parts of the lever conjointly constituting a male die adapted to coact with the female die, means operatively connected to the opposite ends of said lever for rocking the same, and means detachably securing the auxiliary part to the main part to cause the main and auxiliary parts to act in unison or one without the other the abutting faces of the short ends of the main and auxiliary parts being slotted, and a gage carried by the main part and projecting into the said slot, and means for adjusting the gage relatively to the slot for the purpose set forth.

14:. The combination With a stationary part carrying a cutting device, and a reciprocative part carrying a cutting device to coact with said first-mentioned cutting device, of a cylinder, a piston slidable therein, an operative connection between said piston and said reciprocative part, a device for supplying water under pressure, a water-conductor leadingfrom said device to said cylinder, a second waterconductor leading from. said cylinder back to said water-supplying device thus forming a complete circuit, a valve controlling said lastmentioned pipe at a point near its juncture with the cylinder, a pair of cylinders parallel to said first-mentioned cylinder and located one at each side thereof, a pair of pistons located in said pair of cylinders, means operatively connecting said pair of pistons to said reciprocative part, a compressed-air supply, and an air-conductor leading from said airsupply to each of said pair of cylinders, for the purpose set forth.

15. In a metal-cutting machine, comprising a frame, a work-support, a lever fulcrumed adjacent to said support between its ends, metal-cutting means upon one end -of said lever and means operatively connected to the opposite end of said lever for rocking same, said means consisting of a hydraulic-pressure device having a water-conducting pipe leading thereto and a second water-conducting pipe leading therefrom, the combination with said lever and hydraulic-pressure device, of a valve controlling the pipe leading from said hydraulic-pressure device, a lever extending across said valve, means effecting a loose pivotal connection between said lever and frame, an operative connection between said valve and said last-mentioned lever, a retractile helical spring connected at one end to the frame and at its other end to said last-mentioned lever, a bell-crank lever fulcrumed at its angle to the frame and having one arm notched to engage one end of said last-mentioned lever, a link pivotally connected at one end to the end of the other arm of said bell-crank lever and having its other end slotted, a stud upon said main lever and projecting into the slot in said link, a treadle fulcrumed between its ends to the frame, a link pivotally connected at one end to said treadle and at its other end to said valve-operating lever, and a retractile helical spring connected to one of the frames and at its other end to the arm of the bellcrank lever to which said first-mentioned link is connected, substantially as described and for the purpose set forth.

In testimony whereof I have affixed my sig- Witnesses:

WILLIAM P. MOFEAT,

FRED J. SEARs.