US959217A - Support for concrete. - Google Patents

Description

medium againstthe cracking effect of heat.

- is of but small cross section forming a neck and other bnl ding members of which the pending constructions such as ceilings, etc,

form of my new concrete support showing certain wires thereof 1n dotted line. Fig.2

the city and county -Unless this portion upon the beams etc., be

' faces and in general protection of structural .of an I-beam with .my support attached m re D A s 'rarns p PATENT osrion.

501m r. HALLABIAN, or rnrnnnnnrnm, rn'imsY'LvAnm, Assxencn or baa-ms ro shorter. ncAnnY, or PHILADELPHIA, rnivnsrnvanm.

1'0 all whom it may comm: 4 it known that 1, JOHN P. HALLA'HA' a citizen of the United States, residing in of. Philadelphia, State of Pennsylvania, have invented a new and useful Support for Concrete, of which then following is a specification.

In the .fire -proofing'o'f buildings and particularly in the protection of metal work upon smooth surfaces thereof, diflicnlty is experienced in retaining the protecting It is customary to provide layers of concrete or other -fire resistant benea'th'beams etc, to

prevent flame from attackiii the parts di-, rectly and there must be ull protection against attack from beneath because of the general upward movement of the fire and resultant heat. The support of the fire resistmg medium has proved a difiicult matter.

of excessive width its connection with the concrete or other fire resisting medium above or necks at the edges of the beam which e purpose ofmy invention is primarily to provide for the proper support of this concrete facin for beams, structural shapes beam is here merely taken as a. type and to protectagainst the fall of the facing, in case of cracking of the portion by which the material is connected with that ufpon the upper side of the beam. This is 0 course .-"but a sin le instanceof utility of my invention. ile my invention finds its greatest usefulness in the support of the concrete or other facing beneath the beam, it manifestly is advantageous also in support of other dcand facings for all relatively smooth surmetal against fire.

Figure 1 represents in perspective, one

represents in vertical section, an I-beam sup-- plied with the same form of my invention with concrete in place. Fig.3 represents in perspective, and in partial section, a portion thereto, retaining reticulated metal for ceilmg use. F g. 4 represents in cross section, a

I Specification of Iletters Patent. Application n1ed Aprii.13, 1Sl37. Serial in. 368,073.

-svrrom son consents.

Patented May 24,1910.

composite beam my supports.

Similar numerals of reference indicate coi'res onding parts in the figures. Re erring to the drawings, in constructions where it is desired to protect beams and other building. members which I have typitied in l iifigs. 1 and 3 bye-n I-b'eam, there has been d' culty in retaining a sufficient amount of concrete or other rotective mate rial around the bottom of t e beam or. as a facing or protection where used. The physical strength of the concrete is sufiicint to retain it under normal conditions but under the influence of heat the material relied upon for protection is cracked away from the metal to lab prgitected, By-my invention 1 present aflongitudinal support in as close proximity as may be desired to the beam, girder or other member to be protected with the resultthat my transverse supports and longitudinal /wires themselves perform the duty of, "retaining the facing or other protection in ,case'its'otherpneans of retention fail or be omitted.

While I have illustrated my invention as applied ,to I-beams and composite girders, it will be evident that it is applicable to all types of beams, girders and'other structural nictal and that itx'is applicable to vertical and inclined as well as horizontal protection wherever tl ei-cis likelihood of the protective material cracking away and where it does ,not ha'vedirect and immediate support.

1 designates a beam which may be of any suitable forn'ii I have shown it in Figs. 2 and 3- as an I-beani and particularly referred to the application of the concrete to ,illG- soiiit 2 thereof.

'3/tlesi'gnates a support for-the concrete which is formed niost desirably of two mem bers. One of these-consists of a bar or clip 4 having a hooked end 5 and the otherend preferably initially straight. This'clip' 4 is most desirably formed of wire or of a strip which may be readily. bent at the straight end to engage with the opposite with which the hooked end engaged.

The second member which I term a hook sideof a flange or soiiit, such as 2, to that supplied with-aplurality of herein consists of :1 depending double hook arranged to'be'supported by the bar 4 and. to support wires-or strips, substantially parallel to the beam in'itsjoubl'ehook members. Its eyes 6 surround the rod 4 which is prefand t the oooperate with the extensions 9 by whlch the books 10 are. cgznnected with the eyes 6 in such a we, asto" ,-pre vent disengement of the bar fromthe eyes 6 in any other than a longitudinal direction.

. from a, singletpiece of wire e it is, as indicated not necessary that these eyes be thus cldsedsufiicientlyto prevent sidewise withdrawal of the bar or clip; in which case these socalled eyes might per-f ed hooks, the eye form is preferred. For "convenience,

haps more accurately he cal and to distinguish from the terminalhooks, I therefore uniformly call these interme diate parts engaging withthe bar or clip eyes designate them whether theybe' closed-or not. The hooks 10' are completed by. torminals 11 which I have illustrated as pro-' vided with humps but which may evidently 'be of an desired shape. Thdchief advantage 1D. aving the hump is to'more completely insure against accidental disengage-- ment of the wires 12 during the placing of the co'ncretefor other facing. In the present instance the parts 6, 7, 8, 9, 10 and 11 of which all are doubleex'ceptt 8 aremade ut they may erwise formed and. may be evidently-be 0 suitable strip' of whatever made from an cross section. Ihe hooks evidently need not be turned outwardly, as shown with-respect to arts 9. The wires 12 are arranged longitn inall of the member to be protected and are rea ilyinsertible into the open ends of the hooks past the-hum s when these are used, so as to be seat I in the position shown in the figures. When the support and longitudinal wires, rods or strips 12; have been put in place, the structure is surrounded by a; suitable form and the concrete or other protecting medium is set'in place, after whicu the form is removed, as in the present practice.

T e clip 4-. can be made of a single standand length for a large number of sizes of I- beams, Inasmuch as the sofiit 2 of the I-beam varies but slightly in width with large differences in the'hei ht ofthe I-beam. There is corresponding 'iferen'ce in the amount of the end 13 turned but this does not aifect the ultimate construction as completed.

In Fig. 3 I have illustrated how my support may be used also as a ceilingsupport showing reticulated metal 14, of which the ceiling is partly composed, supported upon the rods or wires 12. This does not prevent use of mfy invention to carry out its main purpose 0 fire protection for structural iron and steel as thebeam sofiit can be body portion 8 of such shape that y the same in the claims, intending'thus to' protected by concrete reinforced by port and longitudinal rods-with some a vantage notwithstanding the reticulated metal though without as great advanta e as in its absence; This figure merely a ows one use of which my invention is capable but not the most desirable thereof. I

In Fig. 4 I have shown my construction as applied to a composite beam having flan '15 of much greater width'than fordina' y occurs with the I-beam. I provide- (proper le'n type of clip 'of therefor an support 'the ad tional wi t pi facing '-by us1ng arplurality of my hook .nremh'ers upon the 011p .4, using w hatever number and spacing thereof as may be de- "slr'able or necessary.- The composite-beam 16' is thus suitably protected by a facing embody gthe supports at such intervals as may be desired. I

My vention consists not only in the supporter-reinforcement of whichI make ,use'

ut .alsoiin its-combination with the pro tective material and with the structural me-fial I y It-will be apparent that various changes mayf'be m ade by those skilled in this art whichmay come within thescope of .my

invention and I do not desire to e limited in every instance to' the exact construction herein shown and described. Having'thus described my invention, what ters Patent,is: Y a j;

1. In a su port for fire proofin structural material wires longitudinally disposed with reference to the same and in proximity thereto, a cli cooperating with the face of the metal and a double hook g'votally connected at a luralityof space points-with said clip an supportin said wires.

2. In a support for -I claim as'new and desire to secure by Let.-

re proofing and as an article of manufacture,'an 0 en ended clip in combination with a doub e depending hook havin 3. As an article of manufacture, a clip intermediate spaced ey s. surrounding sai first mentioned clip.

initially having one end straight and the other end bent, in combination with a wire support of a single piece of wire comprisin terminal hooks and intermediate space eyes for engagement with the clip. .4. In a su port for fire proofing aridjas an article 0 manufacture, a clip for engagement with the facin to be protected in combination with a doub e hook compnsmg terminal open book members and intermediate spaced e es of a single piece for engagement with t cliiip.

5. In a support; for re proofing for structural shapes, a clip for engagement with the shape whose face 1s to be protected, wires substantially parallel with the, said face, and

a hook for supporting said wires from the clip, and comprising, a pair of terminal hooks, and e es spaced by an intermediate bar for mova le engagement with the clip. t

6. The combination with flanged beams, of main supporting members comprising wires. having their ends bent to form 0 ensided eyes with projecting ends exten in substantially toward'each other and a'da ted to engage and be frictionally supporte by the flanges of said beams, supplemental supporting members having open-sided eyes and hooked pcr, ions for engagement with the main sup orting members, and reinforcing rods 0 bars carried by the hooked portions of said supplemental members and disposed in the open-sided eyesof the same.

7. The combination with flanged beams,

.of main supporting members comprising wires having their ends bent to form opensided eyes with prdj sting ends extending substantially toward each other and adapted to engage and be frictionally support by the flanges of said beams, supplemental su'pporting members having open-sided eyes and hooked portions for engagement with the main supportin members, reinforcing rods or bars carried y the hooked ortions of said supplemental members and A isposed 1n the open-sided eyes of the same, andshoulders formed by contracting the throats of said eyes to provide a space less in width than the diameter of the rods whereby the latter may be retained in place and spaced from the beams. Y

' JOHN P. HALLAHAN.

Witnesses:

J .,RALPH NAGLE, J No. D. SHELTON.

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