US1000002A

US1000002A - Dies.

Info

Publication number: US1000002A
Application number: US54249810A
Authority: US
Inventors: William Horsley
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-02-07
Filing date: 1910-02-07
Publication date: 1911-08-08
Anticipated expiration: 1928-08-08

Description

W. HORSLEY.

DIES. APPLICATION FILED PBB.7, 1910.

1 ,OO0,002, Patented Aug. 8, 1911.

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I W. HORSLEY.

DIES.

APPLICATION FILED PBB.7, 1910.

1 #000,002. Patented Aug. 8,1911.

8 SHEETS-SHEET 2.

:18 1.9- 1 WITNESSES F/G,2 I mvmon 490m W M ./7 1 0 monniv COLUMBIA PLANDGRAPH CO" WASHINGTON D C w. HORSLEY.

DIES.

APPLICATION FILED PEBJ, 1910.

Patented Aug. 8, 1911.

3 SHEETS-SHEET 3.

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UNITED STATES PATENT UFFICE.

WILLIAM HORSLEY, OF JERSEY CITY, NEW JERSEY.

DIES.

T 0 all whom "it may concern:

Be it known that I, TILLIAM HoRsLnY, a citizen of the United States, and resident of Jersey City, county of Hudson, and State of New Jersey, have invented an Improvement in Dies, of which the following is a specification.

My invention has reference to dies for the manufacture of nozzles for steam boilers and other purposes, and consists of certain improvements which are fully set forth in the following specification and shown in the accompanying drawings which form a part thereof.

The object of my invention is to provide suitable dies adapted for use in connection with hydraulic or other presses, to manufacture my improved nozzles from sheet metal in an efficient and inexpensive manner, the said dies being used in carrying out the method of manufacture, which is more fully described in my application serial number 535,305, and filed Dec. 28, 1909.

In my improved method, I am enabled to form the nozzles of the finest grades of sheet steel, pressed and drawn up into shape in a speedy and economical manner, so that the nozzle not only has strength and cheapness, but is accurate as to form and shape, has a good finish, may be readily calked, and has elasticity in its flanges which enables it to form a perfect joint with the boiler and the other part to be united to it. It has, moreover, greater metal thickness at its larger diameter than at the smaller diameter so that with a given minimum weight of metal, the greatest uniform strength is secured.

More specifically defining the operations necessary to be carried out by my improved dies in the making of the nozzle, the said method consists in stamping, pressing or drawing a flanged body part out of one piece of sheet metal, the body part being more or less tapering or conical, and of gradually decreasing thickness of metal from the flanged part to the smaller tubular end of the body, the tubular end being formed after the conical body portion has been shaped, and the outer part of the blank automatically trimmed as a final operation, so that the nozzle when removed from the dies is in a substantially finished condition as to its limits in all directions; and the foregoing method of forming the blank into Specification of Letters Patent.

Application filed February 7, 1910.

Patented Aug. 8, 1911.

Serial No. 542,498.

a nozzle is carried out as a continuous operation by my improved dies without removing the blank therefrom.

My invention consists in certain constructions of dies for carrying out the above method of manufacturing nozzles which are fully described hereinafter and more particularly defined in the claims.

These improvements will be better understood by reference to the drawings in which:

Figure 1 is an elevation of a hydraulic press with my improved dies applied thereto and shown in section; Fig. 2 is an enlarged sectional elevation of the dies shown in Fig. 1; Figs. 8 and 4 are perspective views illustrating the removable abutment of the dies; and Figs. 5, 6, 7 and 8 are sectional views and Fig. 9 is a plan view showing the shape of the metal in different stages of the formation of the nozzle during the operation of the dies.

The character of nozzle which is adapted to be made by my improved dies is fully illustrated in Fig. 8 with the exception of the dotted flange part indicated at 13, which flanged part is subsequently secured to the small end of the nozzle by expanding or upsetting, or otherwise to provide a second flange through the nozzle, as more fully described in my aforesaid application. The nozzle as made by the dies comprises a flange 2 of large diameter, a tapering body part 9 integral with the flange, and having inclined walls 3 of gradually reduced thickness, a cylindrical end 8 of smaller diameter than the internal diameter of the body adjacent to the large integral flange 2, and an annular shoulder 10 intermediate of the cylindrical end or flange 8 and the tapered body portion. This annular shoulder provides a support for the flange ring 13 which is subsequently secured in place.

In making the body part with the lower tion, drawing the metal within the area of I the clamped portion to form the conical side walls 3 and a top or cap portion 1:, ton 19. It is further provided with an ani orming in effect a dome-like structure, as shown in Fig. 5. lVhen this action is 'accomplished, a. small part of the dome 4 is punched out, as at 5, to form an aperture 6, shown in Fig. (3. A further action of the dies press the upper or cap portion at upward, and at the same time expand the diameter of the aperture 6 until it takes the shape indicated in Fig. 7, providing an upwardly extending cylindrical flange portion 8 of minimum thickness, and of an internal diameter of materially less than the internal diameter of the lower flange 2. By examination of Fig. 7, it will be seen that the cylindrical flange 8 extends upward from the smallest diameter of the conical body and forms that portion 7 where the metal is expanded. hen the flanged nozzle is at this stage of completion, a further action of the dies expands the smaller diameter of the conical portion of the body 9 to provide the annular shoulder 10, indicated at Fig. 8, and at the same time the surplus portion of the sheet, outside of the required diameter of the flange 2 in the finished article, is punched off by suitable dies, as indicated at 11 in said Fig. 8. lVhen the tapering body portion is thus completed, it is in a finished condition ready to receive the smaller flange 13 which flange may be of stamped metal or a. casting, but preferably stamped from a thicker sheet of steel and of a cross section such as indicated in dotted lines in Fig. 8.

Suitable dies and a paratus for carrying out my improved method in the manutao.

ture of the steam nozzle, are shown in Figs. 1 to 4, and will now be described. The hydraulic press for applying the power may be of any suitable character, but that shown consists of the fixed head 17, the movable platen 15 and the large hydraulic cylinder and plunger 16 for vertically moving the platen. Portions of the dies are secured to the head 1.7 and the remaining portions are secured upon the platen 15, and by its movement caused to be raised and lowered.

The dies and their operating parts, which are upon the platen 15, consist of a cylinder 18 having a piston 19 provided with an upwardly directed plunger 20 working through the top of the cylinder. This piston and plunger may be operated by hydraulic or other pressure from any suitable source of supply, and under control of any of the well-known controlling valves. Bolted to the top of the cylinder 18 is a bed die 23 having an annular cutting edge 22. Centrally arranged with respect to the bed die 23 and vertically adjustable therethrough, is a tubular die 21 extending upward and terminating in an annular or female die 24:. This die 21, in its downward position, rests upon the top of the cylinder 18 and is adapted to be raised by the plunger 20 of the pisnular shoulder 39 at a distance below its top.

Referring now to the dies secured to the head 17, there is a die adapted to cooperate with the die of the platen and vertically adjustable within an annular die 27 which has an annular cutting edge 28 .t'orcooperating with the cutting edge 22 upon the aforesaid die 23. The inner part 26 of this annular die 25 is shaped to conform to what would be the outer portion of the tapering body of the finished nozzle, the said interior surface tapering from the lower part in wardly to a tubular neck at the top, which provided with a shoulder 31, employed in the making of the shoulder 10 in the body of the nozzle. The die 25 is connected with the annular die 27 by means of pin and slot devices indicated at 29, which normally support the die 25 so that its lower surface extends somewhat below the cutting edge 28 of the die 27, as indicated in Figs. 1 and 2. The die 25 may be retained in this position, during the drawing operation, by means Of abutment bars 30 which are interposed between it and the bed 38 secured to the head of the press. These abutments 30 may be withdrawn after the nozzle body has been shaped, and preliminary to the trimming oil of the surplus metal 11.. it punch 32 is adjustably supported by a die block 33 with provision for vertical movement, and is adapted to cooperate with the die 2%, previously described, for punching the hole 6 in the blank, as indicated in Fig. 6. This die may be retained in punching position by an adjustable abutment 3% adapted to be in terposed between its upper part and the head 17 (Fig. 2), and which abutment may be moved by a handle lVhen the abutment 34 is withdrawn to the position indicated in Fig. 1, the punch 32 may move vertically without resistance.

36 represents the sheet of steel which is to be pressed and drawn into the improved nozzle, and 37 are adjustable clamps for temporarily supporting the plate in position above the lower dies, all of said parts being carried upon the platen 15. The clamping levers 37 are pivoted so that when the platen rises and the plate 36 is received against the bottom of the die 25, said levers may be oscillated by striking the bottom of the ey lindrical die 27 and turned out of the way. These clamping and positioning devices 37, while found exceedingly useful in practice, are not essential as the plate may be supported by hand or otherwise, it so desired.

The operation of the dies in forming the tubular nozzle will now be understood. Assuming the plate 36 to be in the position shown in Fig. 1, the abutments 30 are withdrawn and the water pressure is then ap plied to the cylinder and plunger 16 and the platen 15 is caused to rise. The up ward movement of the platen soon brings the plate 36 against the bottom of the die 25, with the result that it is pressed upward in the middle by the die 21, and at the same time the plate is clamped between the bottom annular edge of the die 25 and the top of the die 23 and forming that part which finally constitutes the main flange 2 of the nozzle. 1Vhile the plate is so clamped adjacent to its periphery, water pressure is applied to the cylinder 18 and piston 19, causing the plunger 20 to rise. The rising of the plunger 20 pushes the die 21 upward against the under surface of the middle of the plate and draws the said plate into the dome-like shape shown in Fig. 5. hen this is done, the platen 15 is lowered slightly to allow the blank to be lowered sufficiently to let the punch 32 drop down and the abutment block 34 to be shoved in above it. The platen is then raised again and the punch 32, coiiperating with the die 21, punches out a part 5 and leaves an aperture 6 in the crown of the blank, as indicated in Fig. 6. A further upward movement of the die 21 causes the crown to be expanded into a cylindrical flange part 8, as indicated in Fig. 7, the outer diameter of said cylindrical part being made to conform to the inner opening of the die 25 against which it is driven by the die 21. A further upward movement of the die 21 brings the shoulder 39 thereof in cooperation with the annular grooved shoulder 31 on the inner part of the dies 25 to produce in the nozzle body, at the base of the cylindrical flange 8, the shoulder 10 as shown in Fig. 8. During this action, the sheet metal forming the conical part 9 of the body of the nozzle, is caused to shape itself against the internal curved surface 26 of the die 25. The die 21 may then be withdrawn and the dies will be in the positions shown in Fig. 2. The abutment blocks 30 are then withdrawn and a further upward movement of the platen 15 will force the dies supported upon it, together with the die 25, upward and the shearing edge 22 of the die 23 will coact with the shearing edge 22 of the ring die 27 to punch oi the surplus exterior metal 11, Fig. 8, from the plate, so that the lower integral flange 2 will be brought to the right diameter. When this operation is done, the dies are all lowered to their original positions indicated in Fig. 1, the nozzle removed, the abutment 30 inserted and abutment 3 1 withdrawn preliminary to the making of another nozzle. It will be seen that this operation of drawing, punching, shaping and finishing of the nozzle is practically one continuous operation, and while accuracy is secured in the making of the nozzles, the man ufacture is very economically performed.

I have shown my improved dies in the form which I have found excellently adapted for commercial manufacture of the nozzles, and while I prefer these constructions exactly as shown, I do not limit myself thereto, as the details may be modified in various ways without departing from the spirit of the invention. While the cutter 28 co'ciperates with the cutting edge 22, it is self-evident that the trimming of the sheet might be accomplished with equivalent dies by slight modification in other manners. It is also evident that so long as the relative movements are given to the different dies, it is immaterial as to the movable dies. Furthermore, I have shown an ordinary form of hydraulic press in which the platen 15 moves upward, but it is evident that this platen might be considered as the base of the press and the head 17 caused to move downward. These differences being wellknown to those skilled in the art, and hence are not to be considered as limitations or restrictions of my invention.

Having now described my invention, what I claim as new and desire to secure by Let ters Patent, is

1. Nozzle forming dies consisting of the combination of a lower die having an annular cutting edge, a central die of smaller area normally extending above and movable vertically with respect to the lower die, independent power devices for imparting movement to the central die relatively to the lower die, an upper die having an annular cutting edge arranged to cooperate with the annular cutting edge of the lower die, an upper forming die adjustable within the annular die and shaped on its under and inner surface to co5perate with the lower die to clamp a blank and to provide an inner surface to shape the drawn blank, adjustable abutments above the forming die which may be withdrawn to relieve its action when desired, and a cutting die supported independently of the adjustable forming die arranged to cooperate with the lower central die to punch a hole in the blank.

2. Nozzle forming dies consisting of the combination of a lower die having an annular cutting edge, a central die of smaller area normally extending above and movable vertically with respect to the lower die, independent power devices for imparting movement to the central die relatively to the lower die, an upper die having an annular cutting edge arranged to cotiperate with the annular cutting edge of the lower die, an upper forming die adjustable within the annular die and shaped on its under and inner surface to coiiperate with the lower die to clamp a blank and to provide an inner surface to shape the drawn blank, adjustable abutments above the forming die which may be withdrawn to relieve its action when desired, a cutting die supported independently of the forming dies and arranged to cooperate with the lower central die to punch a hole in the blank, and a removable abutment for the cutting die to allow it to rise whereby it may be put out of cutting operation when it is not desired that it shall punch a hole in the blank.

3. Nozzle forming dies consisting of the combination of a lower die having an annular cutting edge, a central die of smaller area normally extending above and movable vertically with respect to the lower die and having an annular shoulder 89 below its upper end, power devices for imparting movement to the central die relatively to the lower die, an upper die having an annular cutting edge arranged to cooperate with the annular cutting edge of the lower die, an upper forming die adjustable within the annular die and shaped on its under and inner surface to cooperate with the lower die to clamp a blank and to provide an inner surface terminating in an upper cylindrical part having an annular shoulder 31 adjacent to its bottom to cooperate with the central die and its shoulder to shape the drawn blank, adjustable abutments above the forming die which may be withdrawn to relieve its action when desired, and a cutting die supported independently of the upper forming die arranged to cooperate with the lower central die to punch a hole in the blank.

l. Nozzle forming dies consi ting or" the combination of a lower die having an annular cutting edge, a central die of smaller area normally extending above and movable vertically with respect to the lower die, power devices for imparting movement to the central die relatively to the lower die consisting of a hydraulic cylinder plunger arranged under and secured to the lower die, an upper die having an annular cutting edge arranged to cooperate with the annular cutting edge of the lower die, an upper forming die adjustable within the annular die and shaped on its under and inner surtace to cooperate with the lower dieto clamp a blank and to provide an inner surface to shape the drawn blank, adjustable abutments above the forming die which may be withdrawn to relieve its action when desired, and a cutting die supported independently of the adjustable forming die and arranged to cooperate with the lower central (lie to punch hole in the blank.

5. Nozzle forming means consisting of the combination of a lower die having an annular cutting edge, a central die of smaller area normally extending above and movable vertically with respect to the lower die, in dependent power devices for in'iparting movement to the central die relatively to the lower die, an upper die having an annular cutting edge arranged to cooperate with the annular cutting edge of the lower die, an upper forming die adjustable within the annular die and shaped on its under and inner surface to cooperate with the lower die to clamp a blank and to provide an inner surface to shape the drawn blank, adjustable abutments above the forming die which may be withdrawn to relieve its action when desired, a cutting die supported independently of the adjustable forming die and arranged to cooperate with the lower central die to punch a hole in the blank, and power devices for causing the lower die and central die to be moved relatively to or from the remaining dies.

6. Nozzle forming dies consisting of the combination of a lower die having an annular cutting edge, a central die of smaller area movable vertically with respect to the lower die, power devices for imparting movement to the central die relatively to the lower die, an upper die having an annular cutting edge arranged to cooperate with the annular cutting edge of the lower die, an upper forming die adjustable within the annular die and shaped on its under and inner surface to cooperate with the lower die to clamp a blank and to provide an inner surface to shape the drawn blank, adjustable abutments above the forming die which may be withdrawn to relieve its action when desired, a cutting die arranged to cooperate with the lower central die to punch a hole in the blank, and means on opposite sides of the dies for positioning and supporting a blank over the lower and central die.

7. llozzle forming dies consisting of the combination of a lower die having an annular cutting edge, a central die of smaller area movable vertically with respect to the lower die, power devices for imparting lmovement to the central die relatively to l the lower die, an upper die having an annular cutting edge arranged to cooperate with the annular cutting edge of the lower die, an upper forming die adjustable within the annular die and shaped on its under and inner surface to cooperate with the lower die to clamp a blank and to provide an inner surface to shape the drawn blank, adjustable abutments above the forming die which may be withdrawn to relieve its action when desired, a cutting die arranged to cooperate with the lower central die to nunch a hole in the blank, and means on opposite sides of the dies for positioning and supporting a blank over the lower and central die equally on each side consisting of pivoted levers which may be turned out of the way when they come in contact with the 1 upper dies.

8. In nozzle forming dies, the combination of upper and lower dies for annularly clamping a blank, power devices for positively bringing the upper and lower dies together, a central die over which the blank is formed said central die being movable vertically with respect to the lower die, and separate power devices for independently moving the central die vertically with respect to the upper and lower dies for cylin drically flanging the blank within the upper dies.

9. In nozzle forming dies, the combination of upper and lower dies for annularly clamping a blank, devices for positively bringing the upper and lower dies together, a central die over which the blank is formed said central die being movable vertically with respect to the lower die, separate power devices for independently moving the central die vertically with respect to the upper and lower dies for cylindrically fianging the blank within the upper dies, and an annular die cooperating with the upper and lower dies which clamp the blank for trimming the said blank at its outer portion as a final operation. 0

10. In nozzle forming dies, the combination of a lower die, a central drawing die having an annular shoulder at a distance below its top and its end above the shoulder made cylindrical, an upper die arranged to cooperate with the lower die to clamp annularly the blank and having a tapered inner surface terminating in a cylindrical opening at its upper portion and provided with an annular shoulder between the cylindrical part and tapered part and with the cylindrical part arranged to receive the upper part of the central drawing die, power devices for positively bringing the upper and lower dies together, and separate power devices for independently moving the central drawing die vertically with respect to the lower and upper dies when clamping the blank.

11. In nozzle forming dies, the combination of upper and lower dies for annularly clamping a blank, power devices for positively bringing the upper and lower dies together, a central die over which the blank is formed said central die being movable vertically with respect to the lower die, and separate power devices for independently moving the central die vertically with respect to the upper and lower d1es for cylindrically fianging the blank wit-hm the upper dies, an annular trimming die arranged to cooperate with the lower die to trim the blank as a final operation, and removable abutments for the upper die which when removed will permit the upper and lower dies to be moved relatively to the annular trimming die.

12. In nozzle forming dies, the combination of upper and lower dies for annularly clamping a blank, power devices for positively bringing the upper and lower dies together, a central die over which the blank is formed said central die being movable vertically with respect to the lower die, separate power devices for independently moving the central die vertically with respect to the upper and lower dies for cylindrically fianging the blank within the upper dies, and means cooperating with the central die for punching a hole in the central part of the blank.

13. In nozzle forming dies, the combination of upper and lower dies for annularly clamping a blank, power devices for positively bringing the upper and lower dies together, a central die over which the blank is formed said central die being movable vertically with respect to the lower die, separate power devices for independently moving the central die vertically with respect to the upper and lower dies for cylindrically fianging the blank within the upper dies, means cooperating with the central die for punching a hole in the central part of the blank, and separate means for putting the said punching means into or out of operation.

let. In nozzle forming dies, the combination of a lower die, a central drawing die having an annular shoulder at a distance below its top and its end above the shoulder made cylindrical, an upper die arranged to cooperate with the lower die to clamp annularly the blank and having a tapered inner surface terminating in acylindrical opening at its upper portion and provided with an annular shoulder between the cylindrical part and tapered part and with the cylindrical part arranged to receive the upper part of the central drawing die, power devices for positively bringing the upper and lower dies together, means for punching a hole in the blank coacting with the upper part of the central drawing die, and separate power devices for independently moving the central drawing die vertically with respect to the lower and upper dies when clamping the blank.

In testimony of which invention, I hereunto set my hand.

WILLIAM HORSLEY.

WVitnesses:

F. M. PATTERSON, ARTHUR SAMPSON MORGAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.