US1775060A - Excavation multiple-section casing or cistern - Google Patents

Description

Sept. Z, 1930. F. C. BAUER, JR

ExcAvATIoN MULTI/PLE SECTION cAsIe on cIlsTERN Filed July 25, 1927 ATTORNEY INVENToR WITNESS Patented Sept. 2, 1930 PATENT OFFICE FREDERICK C. BAUER, JR., OF CAMDEN, NEW JERSEY .,EXCAVATION,MULTIPLE-SECTION CASING OR CISTERN Application filed July v25, 1927. Serial No. 208,394.

This Vinvention relates to the art of plumbing and appliances for 'facilitating plumbing work, and more especially to an excavating multiple section casing or cistern, and an important purpose of thel invention is to provide, in a device vof this kind, a construction for saving life and at the same time to ex-v pedite excavating.

In the plumbing industry it is very often A necessary t0 excavate holes for the installation of plumbing, such as water mains, sewers and various piping from the mains into variousr buildings. It frequently occurs that such excavations cave in at their sices and bury the laborer and therefore endanger life, as it is very difficult at times to extricate the laborer in time. At present it is customary to board up the -wall of the excavation, and even under these conditions, there are times when the wall oi the excavation caves in.

Therefore it is the purpose of the present invention to provide an improved multiple section excavating casing or cistern, which '25 may be lowered into the excavation step by step, that is section by section, and when the casing or cistern has been lowered according to the depth of the excavation desired, the wall of the excavation or hole is prevented from cavin in on the laborer, therefore avoiding endangering life.

In a device of this character it is another purpose to provide a multiple section or cistern, wherein the sections are nested on the r surface of the ground at the location where the excavation is Vto be made, that is the sections are telescopically nested. As the excavation deepens the smaller section lowers correspondingly, and likewise the succeeding sections, and when the sections are properly positioned in the excavation there are means so interconnecting the sections and supporting the sections consecutively from the bottom to the top as to retain the casing or cistern in position.

Y A further purpose is to provide each of the cisterns from the top section to the bottom section with exterior round rings or hoops, which are welded to the sections thereby providing annular shoulders to rest upon and engage with similar interior annular shoulders at the lower edge of the sections, so that the sections may be consecutively supported from the top to the bottom of the excavation.

A still further purpose is to provide suitable handles formed on the exterior shoulders or hoops, so that hooks depending from a clevis link (which may be suspended from a tripod supported pulley and chain or rope) so that the several sections may be extricatcd or removed after the piping or plumbing has been installed.

A still further purpose is to provide the several sections of the casing or cistern with the plurality of foot or hand holds, by which a laborer may climb out of the casing when the excavation is complete, or as the sections are removed. In other words the laborer may climb out a certain distance from the bottom section to the adjacent section and connect the hooks to the bottom section and when it is removed he may climb to the next section and so on until the several sections are entirely removed and the laborer likewise out of the excavation.

It is to be understood that the particulars herein given are in no way limitive, and that while still keeping within the scope of the invention, any desired modification of details and proportions may be made in the construction ofthe appliance according to circuml stances.

The invention comprises further features and combination of parts to be hereinafter set forth, shown in the drawings and claimed.

In the drawings:

Figure l-is a view in section showing the top section in a position, when the excavation c Figure 4-is an enlarged detailed section 10 hook or shoulder, and its handles as having been welded to the sections.

Figure 5#is a view of a modifiedy construcf tion of handle.

Figure 6-is a top plan view of one of the sections. l Y

Referring to the drawings, 1 identifies an excavation, and 2 the multiple section casing or cistern, which comprises a plurality lof sections 8, 1, 5, Gand 7, it being understood that any number of sections may be employed and they may be any height or diameter. However, the sections fromvthe top to the bottom of the casing are of gradual decreasing diameter, so that the various sections may be nested and telescopically connected one within the other from the top to the bottom of the casing.

The severall sections are provided with hand or foot holds 8, by which a laborer may climb out of the cistern or casing at any time and particularly when the excavation is coinpleted.

In order to support the various sections in consecutive yorder from the topto the bottom of the casing, the sections areprovided with exterior shoulders or hoops 9, which are in the form of round rings welded or otherwise Theinvention having been set forth what l `telescopically within'a preceding section, the

last mentioned rings having diametrically opposite loop handles, said handles being directed upwardly and deflected inwardly and formed from the rings themselves, theA construction and arrangement of the handles bef ing such as to provide for'suflicient space between the handles and vthe preceding section as lto enable extricating hooks to engage with the handles between the inner surface of the casing and the handles, whereby each section can be lowered into the excavationL or. extracted therefrom. t f f In testimony whereof he axes his signature.

secured to the exterior ofthe sections as atV y 10. These exterior shoulders engage with similar shoulders 16, which are in the form of round hoop rings weldedto the innersurface of the sections at their lower ends. rvThese hoops constituting shoulders are formed with icc integral handles 11, that is, the hoops are bent as shown causing the handles to be formed. The handles are deflected inwardly of the casing, so as to permit hooks 12 carried by a elevis .ring 13 suspended from a tripod 14, to engage with the hooks between the hooks andthe inner surface of the seetions, as shown clearly iny Figure 3, and as illustrated in the detailed View of Figure 4:. ln other words the` hooks may engage with the handles from the outside in permitting the wall of the casing to retain the handles in position and in engagement with the handles. y f

However, as shown in Figure 5 the hooks may engage with the handles from the inside out. However the sections maybe removed from the excavation in the following manner.

For instance when itis desired to remove the sections the hooks may engage with the lianl dles of the lowerinost section and such section elevated to the surface of the ground by the pulleys and rope and Chain connections. Then the hooks may again be lowered and engaged with the handles of the next section and so on until the'several sections have been elevated to the surface of the ground and removed.

FREDERICK `o. BAUER', JR, 7

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