US738792A - Manhole-terminal for conduit-sections. - Google Patents

Description

No. 738,792. I PATENTED SEPT. 15, 1903. G. M. GEST. MANHOLE TERMINAL FOR GONDUIT SECTIONS.

APPLICATION FILED JAN. 23, 1903.

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GUY M. GEST, OF CINCINNATI, OHIO.

SPECIFICATION forming part of Letters Patent No. 738,792, dated September 15, 1903.

Application filed January 23, 1903. Serial No. 140,225. (No model.)

To ctZZ whom, it may concern:

Be it known that I, GUY M. GEST, a citizen of the United States, and a resident of Oincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Manhole-Terminals for Conduit-Sections, of which the followingis a specification.

My present invention pertains to terminals for conduit-sections, and is especially designed foruse in combination with conduits which terminate in or are interrupted by vaults or chamberssuch, for instance, as those which permit access by means of manholes to cables, pipes, or other conductors which are laid under ground.

The principal object of my invention is to provide members which are adapted to be.

built into walls in combination with and surrounding end sections of conduits and are intended to furnish a properly-formed surface leading from the conduits and upon which the conductors which protrude from the con duits may rest without the possibility of being cut or otherwise inj urcd by the angular-lyformed ends of the conduit-sections.

Another object of my invention is to provide terminals which when properly combined with conduit-sections and transverselyinterruptive walls form a natural and effective connection between said elements and also by furnishing suitable supports for the sections permit the latter to terminate within recesses and at such a distance from the outer terminal faces of said sections as to prevent the entrance into the latter of foreign snbstances-such as rain, snow, or dirt-- which may fall from above into the manhole or other chamber or vault.

I attain these objects by means of terminals which are preferably specifically adapted to the particular formal and dimensional requirements of the conduit-sections with which they are combined; but it is obvious that said terminals may be formed of a number of pieces which may be of such proportional dimensions as to adapt them for general use for the purpose mentioned.

In the drawings, Figure 1 is an elevation of a portion of a wall and ends ot'conduits combined with terminals of a form which embodies my invention. Figs. 2 and 3,1'espectively, are perspective views of details; and Fig. 4 is a perspective view of some of the elements shown in Fig. 1 and illustrates a "method of construction.

Corresponding parts in all the figures are denoted by the same reference characters.

Referring to the drawings, A in a general way designates a wall, and B B are conduitsections which, as shown, terminate at said wall. The sections B may be so formed as to inclose any desirednumber of ducts, herein reerred to as Z) 6; but for illustrative purposes I have chosen sections of commonly-used forms and which, respectively, inclose ducts, four or six in number. In Fig. 1 four sections of six ducts each are shown, set in masonry and contacting parallely of each other. Terminal members are respectively referred to herein as l and 2. In Fig. 1 these are shown built into the wall A and collectively inclosing the ends of sections B. In Fig. 4 a combined structure is shown in an unfinished state, an angular terminal member 1 being shown in position and forming one-fourth part of an inclosure for a single conduit-sec tion of four ducts. The terminal member 2 comprises a body 2 and a curved lip 2", which at its point of junction with the body 2 is thicker than the latter, the outer surfaces of the body 2' and the lip 52 being flush one with the other, the additional thick ness of the lip 2" forming a right angle 2, which joins the lip 2 to the body 2. The lips 2 should be of such a thickness that when a conduit is laid in the angle 2 the adjoining inner surfaces of said members will register one with the other at whatsoever angle the conduit-faces may meet. The terminal member 1 comprises practically two members, such as those referred to as 2, said members being integrally joined at right angles. The terminal members may be made of any suitable material; but I prefer for general purposes to make them of material similar to that used for the conduit-sectionssuch, for instance, as vitrified clay.

The methods of using my invention and the general constructive details connected therewith, as well as the utility thereof, will be readily understood by those who are skilled in the art to which they appertain. For inst-an ce,where a single conduit,such as is shown in Fig. 4, is laid four of the terminal members 1 may be laid in the wall A to completely transversely surround the end section of the conduit, and thus form a complete terminal therefor. Where the conduit is of greater transverse dimensions or Where a number of them are laid side by side, as shown in Fig. 1, it may be necessary to use terminal members of both of the forms shown in order to properly form a terminal for said conduits, in which event, as will readily be seen, the members 2 will lie between the members 1. In either construction the inner surfaces of the outwardly-curved terminal members will practically form continuations of the adjacent inner surfaces of conduits and will by reason of their curvature present safe supports or guides for any conductors which may protrude from the conduits and be flexed transversely thereof. It will readily be understood that the curvature necessary to permit the conductors to properly contact the terminals for the purpose mentioned may be either that naturally caused by the flexure of said conductors or that said curvature may,

if necessary, be intentionally modified in order to properly adapt said conductors to conform to the positions mentioned.

I do not desire to be understood as limiting myself to the details .of construction and arrangement as herein described and illustrated, as it is manifest that variations and modifications may be made in the features of construction and arrangement in the adaptation of the device to various conditions of use without departing from the spirit and scope of my invention and improvements. I therefore reserve the right to allsuch variation and modification as properly fall within the scope of my invention and the terms of the following claims:

Having thus described my invention, I claim and desire to secure by Letters Patent- 1. A terminal for electrical conduits, consisting of an outer extreme end or terminal member having a flat and straight body portion adapted to fit against the corresponding fiat outer surface of a rectangular vitrified electrical conduit-section and provided near the outer' end of said body portion With a straight in wardly-projecting shoulder adapted to fit against the front edge of said rectangular conduit-section, the outer end' surface of said terminal member being curved or flared outwardly from the apex of said shoulder to the outer limit of said member to form a free and unobstructed curved terminal surface at the end of the conduit structure.

2. A terminal for electrical conduits, comprising segmental, .plate-like members consisting of side and corner pieces, the side members consisting of a flat body adapted to lie against the outer side of the conduit and having a head projecting as a shoulder against Iheend ofthe conduit and thence curving outwardly, the corner-sections having two joined flat portions adapted to fit over and embrace a corner of the conduit and provided with heads corresponding to those of the side sections. I

3. A terminal for electrical conduits, comprising a series of sections adapted to fit about the conduit and having an outwardly-curved or flaring flange or head which at its base projects inwardly to form a shoulder adapted to engage the end surface of the conduit, and a plurality of said sections being adapted to surround the conduit end to form a continuous flaring flange thereabout.

4. A terminal for electrical conduits, comprising a series of sections arranged to fit about the conduit and having inwardly-projecting shoulders formingin conjunction with each other a continuous shoulder arranged to engage the end surface of the conduit.

In testimony whereof I have signed my name in the presence of the subscribing witnesses.

GUY M. GEST. Witnesses:

Jos. J. GEST, CHAS. H. DAVIDS.

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