USRE22988E

USRE22988E - Anchor

Info

Publication number: USRE22988E
Authority: US
Publication date: 1948-03-16

Description

March 16, 1948.

W. S. MCLEISH ANCHOR original Filed May e, 1942 Resoued Mar. 16, 1948 ANCHOR William S. McLeish, Bal-barton, Ohio, The Ric-WiL Company, Cleveland,

poration of Ohio Original No. 2,360,067

Serial No. 441,991,

for reissue January 19,

6 Claims. (Cl. 138-48) 'I'he invention relates to means for holding conduits and the like in place. It is particularly applicable to conduits which are installed undercable to uids and which are provided with an outer casing. t.

Another object is to provide an improved means of holding a conduit which may be easily applied to a conduit section during its fabrication.

Other objects will hereinafter appear.

The invention will be better understood from the description of several practical embodiments thereof illustrated in the acompanying drawing, in which:

Figure 1 is a fragmentary plan view, parts being broken away and some shown in section, of an intermediate portion of a heat insulated conduit installed in a trench in the ground;

Figure 2 is a cross sectional view taken on the line II-II of Figure 1;

Figure 3 is a perspective view of the anchor plate of the rst two figures;

Figure 4 is a fragmentary longitudinal sectional view of a building wall, showing the heat insulated conduit pasing therethrough; and

Figure 5 is a transverse view taken on the line V-V of Figure 4.

The conduit illustrated is in general of the type shown in the pending application of Christian Gottwald and William S. McLeish, Serial No. 295,390, led September 18, 1939, now Patent No. 2,330,966, issued October 5, 1943, and which is now known as the unit type of construction, this being used principally for steam lines, and the like, where one or more pipes are used to conduct fluids under temperatures differing from the normal atmospheric or ground temperatures, and therefore are insulated by insulating material contained within a casing or housing, the units consisting of the inner fluid conduit, a layer of insulating material, and the casing, and being prefabricated so that they only need to be joined together at the site of installation.

assigner to Ohio, a cordated October 10, 1944, May 6,

1948, Serial No. 2,984

1942. Application Oi' course, such conduits, being subjected to variations in temperature, are also subject to contractions and expansions for which compensation must be provided, and in order that such contractions and expansions shall be properly distributed between the various expansion joints, bends. and the like, it is necessary nrmly to locate or anchor certain parts of the conduits intermediate those points at which it is desired the expansion be manifested.

In Figures 1 and 2, a conduit is shown consisting of an inner fluid conducting tube I surrounded by a casing 2 which consists of a helically corrugated metallic shell, coated, if desired, with a layer of asphalt 3 and felt or paper 4, as indicated, the space between the casing and shell being filled with heat insulating material 5.

At a point where it ls desired to anchor the conduit. is shown a rectangular metal plate 6, which has a central hole 1 permitting it to be slid over the fluid conducting tube l during the assembly of the parts, and after being positioned as shown. this plate is permanently xed to the tube as by welding 8.

The ends of the metallic casing are brought into contact with this plate and also secured to the same by welding 9, so that a tight, rigid structure is provided. Preferably, the casing is welded throughout its periphery to provide an absolute seal against the entrance of moisture at the juncture of casing and anchor plate.

It will be noted, particularly from Figure 2, that the area of the plate is substantially greater than the cross sectional area of the casing, and that, although the plate does not extend far beyond the periphery of the casing intermediate its corners, these projecting corners supply a large exposed area, probably as great as the cross sectional area of the part of the plate within the casing.

When the pipe is installed, a block of concrete l0 or similar material is cast about the casing, completely embedding the plate, and preferably extending somewhat beyond the normal walls Il of the trench in which the conduit is being placed, so that the block is retained not only by its own weight and inertia, but by bearing at its edges upon the undisturbed earth at the sides of the trench.

As shown in Figures 4 and 5, the fconduit is seen penetrating through a building wall 20, at the inner surface of which the outer casing terminates. v

At this point, a plate I6 similar to that previously described and having a perforation tting clamped or held against the surface of the walL 2l. Inthispositiomthewallitselftakesthe place of the concrete block above described. and firmly locates the conduit.

rt wm be noted that the plates have described fm'nishlargeiiatbearingsurfaces,rmlysup ported by a concrete orsimilar masonry-material against displacement axially of .the pipe,

and that the conduit is thus very firmly held. while relatively small unit pressures are imposed upon the plate. Also that'the plates are eifectively sealed both about the pipes and at the easing, preventing any leakage of moisture into the casing.

It has been found desirable in many instances to provide a vent or aperture 2l through the plates for the escape of steam or the like, shoulda leak in the pipe develop, or should moisture be contained within the assembly and caused to vaporise on the application .of heat thereto.

It has also been found desirable in some installations to provide a similar opening at the bottom of the space defined by the casing 2. such asis shownatuinl'iguresiand 5,toactasa drain. Y

While I have described the illustrated embodiment of my invention in some particularlty. ob-

many others will readily occur to vthose skilled in this art, and I do not. therefore'l limit myself to the precise details shown and described, but claim as my invention all embodiments. variations, and modications thereof coming vwithin the scope of the appended claims.

Iclaim:

l. An underground conduit securing means comprising a perforated plate through the perforation of which a pipe extends. the plate being permanently and unitarily fixed to the exterior of the pipe. a casing consisting of two parts surrounding the pipe. and abutting Opposite sides of the plate, sealing means connecting the parts of the casing to the sides of the plate. the plate extending substantially beyond the periphery of the casing to transmit pressure to the ground.

2. Conduit securing means for use with a conduit consisting of a fluid conducting pipe and an outer two-part casing, said securing means comprising a plate having an aperture through which the pipe extends, the plate extending substantially beyond the ends of the casing parts, the pipe being welded to the plate, and the ends of both casing parts being welded to the sides of the plate sealing the entire peripheries of both casing parts to the plate, and a masonry block embedding the casing and the projecting portion of the plate and buried in the ground.

.4 v 3. Conduitseeuringmeansforusewith a conduit consisting of a metallic fluid conducting pipe and an outer two-part corrugated sheet metal casing. said securing means comprising a plate 5 having an aperture through which the pipe extends, the plate extending substantially beyond the ends of the casing parts, the pipe being weldedtotheplate, and theendsofbothcasingparts being welded to the sides of the plate sealing the lo entire perlpheries of both casing parts to the plate, and a masonry block embedding the casing and the projecting portion of the plate and buried in the ground. the plate having a yent opening therethrough and positioned between the pipe andca'sing.

4. An undergroimd conduit securing means for a conduit which consists of a pipe and a casing surrounding the same and spaced therefrom, y which comprises a perforated plate, the perforation of the plate tting the exterior of the pipe,

means permanently and unitarllyflxing the plate to the exterior of the pipe throughout their entire contact, the casing abutting a side of the plate. and securing means sealing said abutting end oi' the casing to the lplate, the plate extending substantially beyond' the periphery of the casing and providing a. substantial area transmitting pressure to the ground. anchoring means engaging a substantial area of said plate and ilxed thereto and permanently positioned in the groimd. 4

5. An underground conduit securing means for a conduit which consists of a pipe and`casing surrounding the same and spaced therefrom.

v which comprises a perforated plate, the perforation of which closely' ts the periphery of the Pipe. securing means securing the pipe and plate. the end of the casing abutting a side of the plate, und means securing said end of the casing to the 40 plate, the plate extending substantially beyond the casing, a block embedding the end of the casing and abutting a side of the plate, and seeming means holding the plate against said block.

8. An underground conduit securing means for;

a conduit which consists of a pipe and a casing having peripheral projections and depressions surrounding the same and spaced therefrom, which comprises a perforated plate, the perforation of which closely fits the periphery of the pipe, securing means securing the pipe and plate, the end of the casing abutting a side of the plate. and means securing said end -of the casing to the plate, the plate extending substantially beyond the casing, a block embedding the end of the casing and entering the depressions between the projections thereof so as tokey the block to the casing and abutting a side of the plate, and securing means holding the plate against said block.

w WILLIAM S. MCLEISH.