US2201001A - Machine for making jordan shell linings - Google Patents

Description

May 14, 1940. H. D. STUCK MACHINE FOR MAKING JORDAN SHELL LININGS 2 Sheets-Sheet 1 Filed Dec. 31, 1935 INVENTOR.

ATTORNEY.

WMXM( May 14, 1940. H. D. STUCK 2,201,001

MACHINE FOR MAKING JORDAN SHELL LININGS- Filed Dec. 31, 1935 2 Sheets-Sheet 2 I: 25- F; E

' IIVVEIVTOR M 4 M I A TTORNEY Patented May 14, 1940 UNITED STATES PATENT OFFICE MACHINE FOR MAKING JORDAN SHELL LININ GS Appiication December 31, 1935, Serial No. 56,957

Claims.

A Jordan shell is of truncated conical form and on the inside is lined with knives, generally bent, and separators, generally of wood, together with what areknown as check pieces, and in some 5 cases, anchor bars and one or more wedges.

Formerly these parts were assembled in the horizontal shell at the paper mill, but of late years, they have been assembled in a vertical form or jig at the machine shop, and after they have been assembled, either as a complete circle or split, the parts have been held together by rods, jackets, staples and in various other ways.

Usually some or all of the parts have been assembled around the inside of a truncated conical form and have been squeezed together by means of longitudinal or radial wedges driven in place by a hammer or battering ram. So far as known, no other method has been devised by which all the knives and other members of a complete assembly could be placed together in a mould and then could uniformly be squeezed together sufiiciently to close all voids and make the members sufficiently compact to allow the parts to be fastened together and to complete a practical bodily transportable preconstructed filling which could be taken from the machine shop, shipped to the paper mill and installed in place so as to make a drum tight fit between the parts of the lining and the shell itself, except as follows.

As shown in application for United States Let.- ters Patent by Harold D. Stuck and Philip A. De Nault on Process of making linings for Jordan engine shells, filed June 2, 1934, Serial No. 35 728,780, and Staggered riveted Jordan lining,

filed June 6, 1934, Serial No.729,192, Patent No.

2,052,197, dated August 25, 1936, a relatively small number of parts can be and have been squeezed together and other groups added to make up the 40- whole or a large part or segment of the circle,

and as shown by Harold D. Stuck on Process of fitting Jordan shell linings, filed July 12, 1934:, Serial No. 734,819, Patent No. 2,029,123, dated January 23, 1936, a complete bodily movable preeissembled filling has been pushed into a conical mould in order to finish it and fit it accurately for the shell into which it is to be installed, but in practice, this latter method is limited by the difference between the diameter at the large end and at the small end of the conical mould, and the fact that in starting, it has been found necessary to allow the assembled members to project from the large end, the distance through which they are pushed towards the small end. 55 As thereare from one hundred to three hundred separate pieces in a single assembly, and as nearly half of these are usually sawed from wood and without great expense cannot be cut with great accuracy, it is highly desirable that a machine or device should be available by which 5 the members can be loosely put together and then the circumference contracted. at the large end from six to twenty-four inches, or the diameter reduced from two to eight inches.

To practically overcome the problem of providing a device which will allow a very substantial contraction, Idevised and showed and described in my co-pending application for United States Letters Patent on Process of fitting Jordan shell linings, filed July 12, 1934, Serial No. 734,819, the combination of a hydraulic or other power press with a suitable plunger and platen associated with a compound mould of which the small part was one piece but on this were placed annular split sections of gradually increasing size, the idea being to permit the members of a lining to be assembled protruding from the large end and then pressing them down successively, removing the rings from top to bottom.

This application is in part a division of said application Serial No. 734,819 but involves added and alternative features and devices for accomplishing the desired purpose.

In the drawings,

Fig, 1 is an isometric view of a powerpress with a. form made up of several horizontal parts and with the parts of a Jordan shell lining assembled in place before pressure is applied.

Fig. 2 is an isometric viewshowing the smallest or bottom section of the form with the lining assembly squeezed down into its final position and shape protruding slightly at the top and with a metal band in position around the protruding part.

Fig. 3 is a view of the parts shown in Fig. 2 with the form tipped upside down and with a band fastened in place.

Fig. 4 is a vertical sectional view of a slightly different type of form with cooperating parts including a press, showing the parts of a Jordan lining assembled together in full lines, and in dotted lines, the various positions which the assembly takes while being squeezed together.

Fig. 5 is an isometric view of the smallest or lowest form shown in Fig. 4 with the lining assembly squeezed together into its smallest or final size and shape and held together by staples.

Figs. 6 and 7 are detail views showing how the plungers and press of Fig. 4 are held in place.

Fig. 8 is an elevation, partly in section, show- 65 ing a modification of the form and with a single disk plunger or block in'place.

Fig. 9 is an isometric View of an assembly, such as shown in 8, complete and removed from the press.

Fig. 10 is a vertical sectional view similar to Fig. 4 of another slightly different arrangement of form, plunger and press.

Fig. II'is a detail isometric view of the top of an assembled lining with knives and separators of a special type.

In the drawings, I prefer to use a power press of the hydraulic or screw type represented by P. 3 is a top plate supported and held in place by posts such as 5, l fastened to the base "l which, as shown, supports a cylinder l of the hydraulic type in which is a piston 2 with a platen 5 which can be forced upward against or towards the plate 3 at will.

In Fig. l is shown a sectional mould C which is made up of the small section 9 which corresponds with the ultimate size of the filling and resting upon this successively are a plurality of split rings ll, 42, M each of which is made up the same as 44 comprising two sections such as 25 and it each having on each side projecting ears such as 47, till held together by bolts such as 48 and each having in the top a recess 35? and at the bottom a tongue i i-8 which fits a corresponding recess in the section next below. Section need not be split, but may have the ears hill, Hill in the upper part of which are the recesses Ml similar to 49.

As shown in Fig. 1, the mould C is built up of the sections ill, ii, 42, 5,4, and the inside faces of these successive sections form a smooth and perfect truncated cone. Any of the assemblies such as B can be set up in the top so that it projects above the top section M.

The component parts of a shell lining, such as bent knives l l, bent separators or woods lil, cheek pieces l5, l5, if the lining is split, together with a wedge it, are assembled together in the upper sections M; and 52 of mould C with the large end of the assembly B projecting, as shown in Fig. l. A complete ring or hollow truncated cone may be so built Lip-without wedging or any other squeezing together. 1

Pressure is applied and the platen 5 forces mould C upward and the assembly down flush with the top of secttion M. The pressure can then be released, the bolts 48, 38 removed and the entire top annular section 4 made up of the parts. 45 and it can be lifted so that tongues M9 will be released from recesses #39 and the whole top section 44 can be removed. This, of course, leaves the assembly B compressed to a certain degree but sticking up above the next annular mould section 42. The process is repeated until finally assembly B is squeezed down into the smallest section 39 of mould C.

Fig. 2 shows the small section it of the mould C after the assembly B has been squeezed down into it and has been left with a part of the top part of the members It and H pro-jecting. A band or hoop l2 can now be passed around this projecting part to hold the assembly together, while, as shown. in Fig. 3, a band'such as I3 can be nailed on to the bottom by nails M. The complete held together assembly can now be knocked out of the mould C and is ready for shipment.

In Fig. 4, I show a compound mould A, the small end section 29 having ears El, 22, 23 and 24 which project upwardly in such a manner that the'lower end of the larger section 25 fits in-between them so that it cannot get out of place.

D represents an assembly of members such as 35 and 3|, which at first are assembled, as shown by the full lines in the top section 25 with their tops flush with the top of section 25.

F F F are plungers or round blocks which, as shown, are connected together and to plate 3 by keys 28 which enter and are turned in slots 2'! as shown in Figs. 6 and 7.

I now use successively, the disk shaped blocks F F and F F is placed on top of the assembly D and is of such size that when the press platen 5 is operated, block F will be forced down with assembly D, as shown by the dotted lines, after which the plunger is retracted, block F removed and the next smaller block F is put in position. The process is repeated by removing F and inserting F until the original assembly D is forced down into the small part 20 of mould A with its top outer rim inside the bottom inner rim of the top part 2.5 of mould A. The whole of the top part 25 of mould A can now be lifted off, leaving the squeezed assembly in the bottom part 2!] where it can be treated in the manner similar to that described in the mould C or by the use of staggered staples 25, as shown in Fig. 5.

In Fig. 8, I show a slightly different type of mould M in which the bottom part 36 is much longer than the top part 3 I, while the bottom part has an outside annular flange 3 3 which engages an iiiside annular flange 35 in the top part 3|.

The members 32 and 33 are first smeared on their adjoining edges with glue 3% and the process is the same as before except that only one block, such as F, needs n be used because of the relative shallowness of the part 3! and the fact that the reduction in top diameter is less than the difierence between the outside and the inside rim of the tops of the assembly E. Therefore, block F can be used to squeeze E down into place below the bottom of 3i in a single operation.

Fig. 9 shows the assembly E removed from the mould.

As shown in Fig. 10, in some cases where the taper of a single mould N is slight and the depth of the knives and other members relatively great, the horizontal division into sections can be omitted and a plunger such as O can be used with a single operation.

As shown in Fig. 11, in order to overcome any tendency which there might be for the knives or operating members or any other members to kick inward while the pressure is being applied, I canv use metal knives such as 50 with outside ribs such as 5| which enter similar grooves 53 in the separating members 52 as shown in United States Letters Patent to A. L. Bolton on Self-supporting lining for Jordan engine shells, issued September 27, 1927, No. 1,643,368.

In the claims, the word members includes any and all the component parts of a shell lining, such as knives, separators, cheek pieces, wedges, rivets, glue and any other parts which help to complete a truncated cone.

I claim:

1. In a machine for making a Jordan shell lining, the combination of a press including a fixed plate and a platen movable to-and from said plate; with a compound form of truncated conical shape including a small bottom part and a large top part which is removable from the bottom part; and a block carried by the fixed plate and having a circular head of such size as to enter the large end of the large top part of the form and smaller than the small end of such top part.

2. In a machine for making a Jordan shell lining, the combination of a press including a fixed plate and a platen movable to and from said plate; with a compound form of truncated conical shape including a small bottom part and a large top part which is removable from the bottom part; and a block carried by the fixed plate and having a circular head of such size as to enter the large end of thelarge top part of the form.

3. The process of assembling and squeezing together the knives and separators to form a preconstructed Jordan engine shell lining section with a smooth outside curved surface which consists of placing the knives and. separators in the large end of a truncated conical mould having a smooth inner curved surface which extends without interruption from the large to the small end, and of forcing the assembly towards the small end of such mould; of removing part of the large end of said mould; of again forcing. the assembly towards the small end; and again removing part of the remaining large end.

4. The process of assembling and squeezing together the knives and separators to form a preconstructed Jordan engine shell lining section with a smooth outside curved surface which consists of placing the knives and separators in the large end of a truncated conical mould having a smooth inner curved surface which extends without interruption from the large to the small end, and of forcing the assembly towards the small end of such mould; and of again forcing the as sembly towards the small end of such mould.

5. The process of assembling, squeezing together and holding together angularly bent knives separated by angularly bent, tapering separators of keystone cross section to form a preconstructed Jordan engine shell lining section with a smooth outside curved surface which consists of coating their adjoining surfaces with an adhesive and of then placing the knives and separators in the large end of a truncated conical mould having a smooth inner curved surface which extends without interruption from the large to the small end, and of then forcing the assembly towards the small end of such mould.

HAROLD D. STUCK.

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