US1486953A

US1486953A - Rotary mold

Info

Publication number: US1486953A
Application number: US406444A
Authority: US
Inventors: Lavaud Dimitri Sensaud De
Original assignee: CENTRIFUGAL PIPE CORP
Current assignee: CENTRIFUGAL PIPE Corp
Priority date: 1910-08-27
Filing date: 1910-08-27
Publication date: 1924-03-18
Anticipated expiration: 1941-03-18

Description

March 18 1924.

D. 5. DE LAVAUD ROTARY MOLD 1929 3 Sheets-Sheet 1 Original Filed Aug. 27

.INVENTOR 3M. J 'ZV.- ATTORNEYS.

March 18 1924.

. D. 5. DE LAVAUD ROTARY MOLD Original Filed Aug. 27. 1920 3 Sheets-Sheet 2 A TTORNEYS.

March18, 1924. 1,486,953

D. s. DE LAVAUD ROTARY MOLD ginal Filed Aug. 27. 1920 5 Sheets-Sheet 5 I INVENTORI M n-4Mdv. 0L0. X

By W. A TTORNEYS.

Patented Mar. 1, E24.

:omurm snnsaon DE Lavaun,

NT FHQE. V

or rams, FRANCE, assrenon, In? nnsnn assien ROTARY MOLD.

Application filed August 27, 1910, Serial No. 406,444. Renewed May 6, 1922. Serial No. 559,073.

To all whom it may concern Be it known that I, DIMITRI SENSAUD on 'LAvAoo, a citizen of the United States of razil, and resident of Paris, France, have invented certain new and useful Improvements in Rotary Molds, described in the following specification and illustrated in the accompanying drawings, that form part of the same.

The principal objects of the invention are toovercome the difiiculties met with in water jacketing rotating molds resulting from the expansion and contraction of the mold under the intermittent excessive heat to which the mold is subjected and to devise a structure which will be simple and inexpensive to make.

The principal feature of the invention consists in the arrangement of. expansible ring sealing members between the mold and the end walls of the water jacket encircling same and providing longitudinal cylindrical contact surfaces to slidably engage said sealing rings.

In the drawings Figure 1 is an elevational view in part section of a mold constructed in accordance with this invention.

Figure 2 is a cross section through the mold and water jacket showing the rotatable supports for the mold.

Figure 3 is an enlarged longitudinal sectional view of the mold wall showing the piston ring seal for the water jacket.

Figure 4 is a View similar to Figure 1 showing a modification of the water jacket structure. 1

In the form of device herein shown the rotatable mold 1 is mounted on rollers 2 supported within the outer cylindrical casing 3 and arranged so as to balance the weight of the mold longitudinally and support it axially within the outer casing.

The outer casing 3 is spaced from the mold a distance suflicient to form a Water jacket of such dimensions that the water contained therein will absorb the heat of the .molten metal poured into the mold and radiating therethrough during the solidifying of the metal.

At one end of the casing-3 the inner wall is formed with the annular grooves 4 and 5 and in the outer of these rooves is inserted aring 6 which engages a ange 7 on the bell end of the moldl, a packing ring 8 being inserted therebetween and forming a water tight joint.

A ring 9 is seated in the groove 5 and the inner periphery 10 is spaced from the mold and presents a cylindrical( surface parallel with the mold. The periphery of the mold 1 is provided with an annular groove 11 opposed to the surface 10 of the ring 9 and in this groove is placed asprin piston ring l2'which forms a flexible sea ed joint between the mold and the ring 9. The flexible seal thus provided allows for the annular and longitudinal expansion and contraction of the mold without binding and always maintains a water tight joint.

A pair of

rings

13 and 14 similar to the rings 9 are arranged at the opposite end of the casing and the inner cylindrical surfaces thereof engage in water sealing contact with the piston rings 15 and 16 housed in the

grooves

17 and 18 in the flange 19 of the mold 1.

It will be understood from this description that a water jacket is formed around the mold 1 which will ofier no material resistance to the rotation of the. mold even when at its maximum heat and it will also be readily seen that the roller supports 2 for the mold will allow it to move freely in ex ansion and contraction.

ater is fed to the jacket through a pipe 20 entering the casing 3 adjacent to the ring 9 and is carried away by the overflow pipe 21 at the opposite end. The water need not be under any more pressure than is necess to cause circulation through the water jacket.

The mold is rotated by a Pelton wheel 22 arranged on the mold 1 between the rin 9 and 6 and the bell end of the mold-is cooled by the water projected into the wheel and circling the compartment between said rings.

The outer casing 3 is preferably formed in sections so that if it is desired to change the size of the mold, the upper section may be removed and the mold and rings may then be lifted out and another substituted therefor.

In the structure shown in Figure 4 the bell end 23 of the mold has secured to its flanged end '24 a cylindrical member 25 which is spaced from the eriphery of the mold and carries the Pe ton wheel 22.

Piston

rings

26 and 27 are housed in eripheral grooves at each end ofthe mem er 25 and these are engaged by ring members 28 and 29 secured in the outer casing 3.

' This construction allows the water jacket to extend the full length of the mold. Cross reference is hereby made under the provisions of Rule 43, to my copending application, Serial No. 559,072. I

What I claim as my invention is 1. In a rotary mold, the combination with the cylindrical mold rotatably supported and a casing encircling the mold and spaced therefrom to form a Water jacket, of flexible piston rings encircling the mold and engaging the mold and casing to form a water seal.

2. In a rotary mold, a cylindrical casing, a rotary mold axially supported in said casing, ring members secured in said casing and extending toward the periphery of the mold, and expansible piston rings carried by the mold and slidably and rotatably engaging said ring members.

3. In a rotary mold, a cylindrical casing, roller supports arranged in the lower half of said casing, a cylindrical mold resting on said roller supports and having annular grooves in its periphery, expansible piston rings arranged in said grooves, and ring members forming end Walls of a water jacket secured in said casing and having cylindrical inner faces engaging in sliding and rotative contact with said piston rings.

4. In a rotary mold, a cylindrical casing, a rotary mold axially supported in said casing and free to expand circumferentially and longitudinally, said mold having cylindrical flanges at the ends spaced from the periphery of the mold to allow water contact for the entire length of the mold, annular. grooves in said cylindrical flanges, piston rings in said grooves, and ring members secured to the casing at each end and provided with cylindrical surfaces to engage said piston rings.

5. In a rotary mold, a cylindrical casing, a rotary mold axially supported in said casing and free to expand circumferentially and longitudinally, a Pelton wheel secured to the mold at one end, ring members secured to the casing each side of said Pelton wheel, ring members arranged at the other end of the casing, and iston rings sealing the space between sai mold and said ring members.

Signed at New York, in the county of New York and State of New York, this 30 day of July, A. D. 1920.

DIMITRI SENSAUD DE LAVAUD.