US2126542A

US2126542A - Insertable joint

Info

Publication number: US2126542A
Application number: US209791A
Authority: US
Inventors: Hart John R De
Original assignee: READING FOUNDRY AND SUPPLY CO
Current assignee: READING FOUNDRY AND SUPPLY CO
Priority date: 1938-05-24
Filing date: 1938-05-24
Publication date: 1938-08-09
Anticipated expiration: 1955-08-09

Description

Aug. 9, 11938..

J. R, DE HART INSERTABLE JOINT Filed May 24, 1938 -f/rf Patented Aug. 9, 1938 UNITED STATES PATENT orrlce INSERTABLE JOINT Application May 24,

3 Claims.

This invention relates to new and useful improvements in insertable joints and more particularly to insertable joints for soil pipes and the like.

In standard soil pipes of conventional construction, when it is desired to insert one or more sections into `the soil pipe, it is essential that a section be cut from the soil pipe which is approximately one to two inches longer than the combined length of the section or sections to be inserted in order to provide sufficient clearance to permit the new section or sections to be swung or inserted into the line. Thus when the sections are properly positioned in the line and nested in the hub portions of adjacent sections of soil pipe, a substantial gap or space exists between the lower end of the upper fixed section of the pipe and the upper end of the section inserted. The existence or" this gap or space is objectionable in that it aords -a recess or oiset in the wall of the soil pipe in which matter readily collects, and also the packing employed to fill the hubs and provide a water-tight connection between adjacent sections quite often enters this space or gap with the result that a substantial obstruction or restriction results in the soil pipe.

With these observations in mind, the principal object of the present invention is to provide an insertable joint or section which is constructed and arranged to provide a continuous wall surface in the soil pipe whereby the occurrence of any space or gap between adjacent joints or sections therein is entirely eliminated.

Another object of the invention is to provide an insertable joint or section of the character set forth which is of relatively simple, inexpensive construction and comparatively easy to install.

These and other objects of the invention and the features and details oi the construction and operation thereof are hereinafter iully set forth and shown in the accompanying drawing, in which:

Figure 1 is a fragmentary View in section longitudinally through a soil pipe including an insertable joint constructed according to the present invention.

Figure 2 is a View similar to Figure 1 showing the manner in which a joint embodying the invention may be inserted.

Figure 3 is a fragmentary view in perspective of the main body portion ci the insertable joint section, and

Figure 4 is a view in perspective of Ia complementary member constructed for cooperative 1938, Serial lNo. 209,791

association with the section disclosed in Figure 3.

Referring now more particularly to the drawing reference numeral l designates a soil pipe which may be of any desired height and connected in any desired manner with the various fittings of a building. Under certain circumstances, it may be and often is desired to add a new section to the soil pipe at some convenient point, as for instance, section 2 which is a branch section of pipe designed to present an auxiliary opening.

When it is desired to put in a new section, such as section 2, it is necessary to remove one or more of the sections of the soil pipe and in such removal the particular section or sections are broken or cut away to make room for s-aid new section. The `new section 2 is then inserted in the conventional manner after which an inserted joint section 3 is inserted with its lower end 4 fitted into the bell or hub 5 of section 2 while its upper end is provided with threads 6 for receiving the internally threaded section 'i ci the sleeve or hub member 8.

Prior to the present invention, in order to permit a new section 2 and joint section 3 to be inserted in the soil pipe, a section of from one to two inches longer than the combined length of said sections 2 and 3 was necessarily cut from the soil pipe in order to provide suicient clearance for the latter section 3 to be swung into the soil pipe line. This requirement, of course, caused a substantial space or gap to occur between the upper end of the section 3 and to lower end of the superimposed section 5l when the lower ends of sections 2 and 3 were fitted into the hub portions I0 and 5 of sections I l and 2 respectively.

According to the present invention this space may be eliminated and at the same time a proper support for the section 9 and others above it by forming theinserted joint section 3 to include an approximately semi-circular upper end portion i2 above or beyond the threads 6 thereon. By this arrangement the section 3 may be inserted and swung into the soil pipe line in the manner shown in Figure 2 of the drawing within an opening or space in said soil pipe line of the same length as that of the sections to be inserted. Thus no space or gap will occur between the upper end of the semi-circular portion l2 of the inserted section 3 and the lower end of the superimposed section 9 of the line with the result that adequate support for the latter and other sections above it is provided by said portion I2 of section 3, and the prior necessity for removing a section from the line of greater length than the section or sections to be inserted no longer exists.

A space or gap will, however, exist between the inserted section 3 and the section 9 which is not occupied by the semi-circular portion I2 of said section 3 and this gap or space in the wall of the soil pipe is filled by a complementary approximately semi-circular insert section or segment I3 constructed as shown in Figure 4 of the drawing.

The approximately semi-circular projecting portion I2 of the section 3 and the complementary insert section or segment I3 are generally formed by initially forming the inserted section 3 with a continuous wall of uniform length and then cutting or otherwise removing the said insert segment I3 therefrom to form it and also the projecting portion I2 Which is left integral with section 3. These several elements may, however, be formed independently of each other as desired.

In order to hold the insert segment I3 in position in the soil pipe with respect to the projecting portion I2 of section 3 during calking or packing of the joints as well as tightening of the hub or sleeve 8 upon the threads 6 of said section 3, tapered lugs or projections I4 are provided at opposite side edges of the projecting portion I2 and arranged to accurately fit or engage correspondingly formed recesses or slots I5 provided in the side edges of the insert segment I3 in the manner shown in the drawing.

After the sections 2 and 3 and the complementary segment I3 of the latter have been positioned as above described, the sleeve or hub 8 is screwed into position as illustrated in Figure 1, the several joints being made water tight and secure by inserting caulking or packing in the several hub portions thereof in the conventional manner, and While a particular embodiment of the invention has been illustrated and described, it is not intended that said invention shall be limited thereto but that changes and modifications may be embodied and incorporated therein within the scope of the annexed claims.

I claim:

1. An insertable joint for soil pipes and the like comprising a section of pipe having threads thereon adjacent the upper end and including an arcuate wall portion extending a substantial distance endwise beyond said threads for supporting superimposed pipe sections, an arcuate insert section arranged for cooperative association With said pipe section and the endwise extending Wall portion thereof to complete the wall of the pipe section, and a hub for said section having at the lower end thereof an internally threaded portion adapted to be screwed onto the threads on said pipe section.

2. An insertable joint for soil pipes and the like comprising a section of pipe having threads thereon adjacent the upper end and including an arcuate wall portion extending a substantial distance endwise beyond said threads for supporting superimposed pipe sections, an arcuate insert section arranged for cooperative association with said pipe section and the endwise extending v/all portion thereof to complete the wall of the pipe section, a hub for said section having at the lower end thereof an internally threaded portion adapted to be screwed onto the threads on said pipe section, and means on said arcuate insert section and the endwise extending wall portion of the pipe section arranged for cooperative interengagement to hold the arcuate insert section in place until said hub is screwed into position upon said pipe section.

3. An insertable joint for soil pipes and the like comprising a section of pipe having threads thereon adjacent the upper end and including an arcuate wall portion extending a substantial distance endwise beyond said threads for supporting superimposed pipe sections, an arcuate insert section arranged for cooperative association with said pipe section and the endwise extending Wall portion thereof to complete the Wall of the pipe section, said insert section having recesses in its opposite side edges, a hub for said section having at the lower end thereof an internally threaded portion adapted to be screwed onto the threads on said pipe section, and projections on the endwise extending arcuate wall portion of the pipe section arranged to engage the recesses in the arcuate insert section to hold the latter in place until said hub is screwed into position upon said pipe section.

JOHN R. DE HART.