US2553342A

US2553342A - Nonturnable spud

Info

Publication number: US2553342A
Application number: US96474A
Authority: US
Inventors: Albert H Trageser
Original assignee: TRAGESER COPPER WORKS Inc
Current assignee: TRAGESER COPPER WORKS Inc
Priority date: 1949-06-01
Filing date: 1949-06-01
Publication date: 1951-05-15
Anticipated expiration: 1968-05-15

Description

May 15, 1951 TRAGESER 2,553,342

NONTURNABLE- SPUD Filed June 1, 1949 IN V EN TOR. ALBERT hf TRAGESER F15 Q NE,

A T TORNE Y5 Patented May 15,1951

N ONTURNABLE SPUD Albert H. Trageser, Manhasset, N. Y., assignor to Trageser. Copper Works, Inc., Maspeth, N. Y.,

a corporation Application June 1, 1949, Serial No. 96,474

6 Claims.

The present invention relates to lined water heaters or boilers and more particularly to such heater or boiler which comprises an outer steel shell and a comparatively thin metal lining, usually made of sheet copper.

One object of the present invention is to provide a lined water heater with spuds which are of such construction and are so connected to the shell and to the lining as to prevent impairment of the connection. between the spud and the lining and to prevent damage to the lining especially when the pipe connections to the boiler are being made.

More specifically it is an object of the present invention to provide a spud connection which is of such construction and is so related to the outer shell of the boiler as to prevent the spud from being turned about its axis by force applied to the spud in connecting the water inlet or outlet pipe thereto.

A further object is generally to provide a lined tank with a spud connection of improved construction.

The above and other objects, features and advantages of the invention which might hereinafter appear will be fully understood from the following description considered in connection with the accompanying illustrative drawings.

In the drawings:

Fig. 1 is a side elevation view of a water heater embodying the present invention;

Fig. 2 is a view on a larger scale of a spud connection and the adjacent part of the heater;

Fig. 3 is a sectional view on the line 3-3 of Fig. 2, showing the spud in elevation;

Fig. 4 is a view similar to Fig. 2, the outer spudfastening nut being removed for the purpose of illustration;

Fig. 5 is a sectional view on the line 55 of Fig. 2.

Briefly described, the tank or container of the present invention here shown as a water heater or boiler H3, comprises an outer steel shell I 2 having a copper lining l4 and provided with a plurality of spuds It for connection to the boiler of the several water inlet and outlet pipes (not shown). As the lining i4 is formed of thin sheet copper or other suitable metal or material which is relatively weak or fragile in comparison with the steel shell 52, and as the spud connections It must each have a fluid-tight joint with the lining, it is of the utmost importance that provision be made for protecting the lining and the watertight connections between the latter and the spuds against impairment under various conditions and especially when force is applied to the spuds in connecting the water inlet and outlet pipes thereto. Pursuant to the present invention provision is made for preventing the application to the spud connections of any force whic would tend to turn the spuds around their re ective longitudinal axes, as for example, when the water pipes are being connected to the spuds, in the installation of the water heater or at some other time.

Referring now to the drawings in greater detail, the spud It comprises a tubular part I8 threaded internally, as indicated at 20 for connection thereto of the companion water pipe. Said spud has a fluid-tight connection with the adjacent part of the lining M of the boiler, and for this purpose the flange 22 of said spud is brazed or otherwise secured and sealed to themripheral portion 24 of the lining completely around the opening 26 through which the tubular part 58 of the spud projects. The outer surface of tubular part l8 and the edge 28 of the opening 2% in the shell l2 and lining M are shaped, in complemental relation, in such manner as to prevent turning of the spud axially of opening 26. More specifically, said edge 28 of the opening and the outer surface of tubular part l8 of the spud are both non-circular and interfit so as to prevent turning of said spud in the opening 26. While the non-circular configuration of the edge 28 of the opening and the outer surface of tubular part i 8 of the spud may vary, as will be readily understood, the presently preferred construction, as shown by the drawings, comprises the provision of one or more flat planar surfaces 32 on the tubular part 58 of the spud and the provision of corresponding rectilinear edge portions 34 on the edge 28 of the opening 26. The outer cylindrical surface portions 36 of the spud are screw threaded for engagement by the nut 38 which secures the spud against the adjacent outer surface of the shell l2 around the opening 26 and prevents movement of the spud longitudinally of the axis of the shell opening.

It will be understood that the water heater H], in respect to its outer shelland its lining and the relation therebetween may be of any known or suitable construction, and therefore does not require any specific illustration or description herein, particularly since the Water heater and its lining considered apart from the spud connections of the present invention do not per se constitute part of the present invention. On the other hand, it is to be understood that the construction and arrangement of the spud connec- 3 tion with the lining and the outer shell in accordance with the present invention, may be embodied in lined water heaters or boilers or other tanks or containers of any of the various known or suitable constructions.

While I have shown and described the preferred embodiment of my invention it will be understood that various changes in the details of construction and in the form and arrangement of parts may be made without departing from the underlying idea or principles of the invention within the scope of the appended claims.

Having thus described my invention, what 1 claim and desire to secure by Letters Patent is:

1. A heater comprising ahard outer shell and a softer inner lining with registering openings therethrough for communication of the interior of the heater with a pipe, and a spud having'a fluid tight joint with said lining and being provided with a tubular part projecting through said registering openings of the lining and shell for -the.connection of said pipe thereto, the edge of said shell at said opening thereof being non-cir- ,cular and said tubular part of the spud having a non-circular outer portion fitted in said shell open-ing whereby the shell prevents turning of the spud axially of said shell opening, said tubu- .lar part having outer screw-threaded portions coextensive at least in part with said non-circular portion of said tubular part axially of the latter, and a nut threadedonsaid tubular part and engaging the outer surface of'the shell around the shell opening for securing the spud to the shell and thereby preventing movement of the spud longitudinally of the axis of theshell opening.

2. A heater comprising a hard outer shell and 'a softer inner lining with registering openings therethrough for communication of the interior of the heater with a pipe, and a spud having a fluid tight joint with saidlining and being provided with a tubular part projecting through said registering openings of the lining and shell for the connection of said pipe thereto, said shell and said tubular part having non-circular interengaging parts at said shell opening to prevent turning of the spud axially of said opening of the shell, said tubular part having outer screwthreaded portions coextensive at least in part with said non-circular part of said tubular part axially of the latter, and a nut threaded on said tubular part and engaging the outer surface of the shell around the shell opening for securing the spud to the shell and thereby preventing movement of the spud longitudinally of the axis of the shell opening. 3. A heater comprising a hard outer shell an a softer inner lining withregistering openings therethrough for communication of the interior of the heater with a pipe, and a spud having a fluid tight joint with said lining and being provided with a tubular part projecting through said registering openings of the lining and shell for the connection of said pipe thereto, said shell and said tubular part having fixed parts, respectively, in interengagement with eaoh'other to prevent turning of the spud axially of said opening of the shell, said tubular part having outer screw-threaded portions coextensive at least'in part with said fixed part of said tubular .4 part axially of the latter, and a nut threaded on said tubular part and engaging the outer surface of the shell around the shell opening for securing the spud to the shell and thereby preventing movement of the spud longitudinally of the axis of the shell opening.

4. A heater comprising a hard outer shell and a softer inner lining with registering openings therethrough for communication of the interior of the heater with a pipe, and a spud having a fluid tight joint with said lining and being provided with a tubular part projecting through said registering openings of the-lining and shell for .the connection of ,said pipe thereto, the edge of said shell at said opening thereof having opposite rectilinear portions and said tubular part of the spud having opposed outer flat portions in complemental interfitting relation with said edge portions of the shell whereby the latter prevents turning of the spud axially of the shell opening, said tubular part having outer screw-threaded portions between said flat portions, and a nut threaded on said tubular part and engaging the outer surface of the shell around the shell opening for securing the spud to the shell and thereby preventing movement of the spud longitudinally of the axis of the shell opening.

5. A spud for a tank having an outer shell provided with a non-circular opening and a lining provided with an opening in registry with said shell opening, said spud comprising anouter. peripheral part adapted to be sealed to said lining around the opening thereof and a tubular part adapted toproject through the opening of the shell and having a non-circular outer peripheral portion adapted to interfit withthe shell opening and thereby held against turning about the ax of the tubular part, said non-circular tubular .part having a screw-threaded arcuate portion for the tubular part, said non-circular tubular part having circumferentially spaced screw threaded arcuate portions adapted to have .a nut threaded thereon for clamping .the.spud to the shell ofthe tank.

ALBERT H. TRAGESER.

REFERENCES CITED The following references are of record in'the file of this patent:

UNITED STATES PATENTS Number Name 7 Date 431,791 Aldrich July 8, 1890 556,755 Kelley Mar. 24, 1896 1,086,949 Speakman Feb.'l0, 1914 2,456,165 Yuza Dec. 14,1948