US1861615A - Suspended ceiling construction - Google Patents

Description

June 7, 1932. F. M. VENZIE SUSPENDED CEILING CONSTRUCTION Filed April 18, 1931 INVENTOR. f'ms'az'mc/r/ lkavz/g A TTORNE Y.

Patented June 7, 1932 PATENT OFFICE FREDERICK M. VENZIE, OF PHILADELPHIA, PENNSYLVANIA SUSPENDED 0mm CONSTRUCTION Application filed April 18,

This invention, stated in its broadest terms, relates to a building construction and has more particular reference to a building structure employing a suspended ceiling formed of precast slabs of cementitious material such as is disclosed in my co-pending patent application Serial N 0. 525,064, filed March 25, 1931.

As disclosed in my said application for Letters Patent, the precast ceiling slabs are suspended from a common carrier as a plasterers channel. Practice dictates that under certain conditions in building construction it is not suitable or advisable to make use of plasterers channels.

The leading object of the present invention is to make use of existing fireproofing floor supporting members as I find them in a building construction for the suspension of pre cast ceiling slabs of cementitious material and to this end to make use of conventional floor members including steel I-beams for the support of the ceiling slabs.

A further object of the present invention resides in the provision of a building construction in which there is first erected a scaffold beneath the ceiling slabs to be suspended and to make use of the steel lI-beams supporting a fireproofing fioor for the suspension of the ceiling slabs by means of metal clips.

A still further object of the present inven tion resides in the provision of a suspended ceiling construction of precast slabs of cementitious material which may be readily clipped with respect to steel I-beams by unskilled labor.

A further object of the present invention is to provide a metallic clip of novel construction especially designed for attachment to steel I-beams for the suspension of precast ceiling slabs of fireproofing material.

Other and further objects of the present invention reside in the provision of general details of construction and in the arrange ment, connection, and combination of parts for attaining the results sought by the foregoing objects in an expeditious and inexpensive manner by unskilled labor.

The invention consists of the novel con- 1931. Serial No. 531,071.

struction hereinafter described and finally claimed. The nature, characteristic features and scope of the invention will be more fully understood from the following description taken in connection with the accompanying drawing forming part hereof, and in which:

Fig. 1 is a fragmentary view, partly in elevation and partly in section, illustrating a fireproofing floor, supported upon steel I-beams fromwhich I-beams are suspended by means of metal clips precast ceiling slabs of fireproofing material;

Fig. 2 is a view in section taken upon the line 22 of Fig. 1; 65

Fig. 3 is a view in section taken upon the line 3-3 of Fig. 2; and

Fig. 4 is a View in perspective ofan especially designed metal clip for ceiling slab suspension. 70

For the purpose of illustrating my invention I have shown in the accompanying drawing one form thereof which is at present preferred by me, since the same has been found in practice to give satisfactory and reliable results, although it is to be understood that the various instrumentalities of which my invention consists can be variously arranged and organized and that my invention is not limited to the precise arrangement and organization of the instrumentalities as herein shown and described.

Referring to the drawing in detail, the reference numeral 10 designates a floor of fireproofing material which may or may not be reinforced, as desired. The fireproofing flooring 10 is supported upon steel I-beams 11 according to common practice. I make use of'these steel I-beams as I find them in a building construction to support precast ceiling slabs 12 of cementitious material. These ceiling slabs 12 may be of any desired configuration and may be of any suitable fireproofing material and may be reinforced or not, as is desired. These ceiling slabs are ar- 9 ranged end to end, as shown in Fig. 2, and may have a rabbeted connection 13 or not as desired. While-I have in mind suspending the precast ceiling slabs 12 from the steel I-beams 11 in various ways, practice dictates that the arrangement of clips shown in the drawing serves to provide an efiicient, sim ple, and comparatively inexpensive arrangement of parts whereby unskilled labor may .rapidly work from a scaffold beneath the floor members to position the ceiling slabs.

Referring now more particularly to Figs. 1, 2, and 3, the reference numeral 14 designates an elongated metal plate having struck out therefrom and extended in opposed relation a plurality of spaced fingers l5. and 16. The upper fingers 15 are adapted to engage the upper surfaces of abutting ceiling slabs and the lower fingers 16 are arranged to engage in the slotted portions 17 of the slabs 12, as best seen in Fig. 2.

The upper fingers 15 of adjacent metal clips are also adapted to be engaged by the opposed split feet 18 of a hanger about to be described. Each hanger comprises a. onepiece metal stamping, as best seen in Fig. 4, and consists of a split body 19 from which the split feet are extended in opposed relation. The upper end of the body 19 has extended therefrom at right angles thereto a plate 20 which is doubled over upon itself and extended in a direction first toward the split body 19 and thereafter extended horizontally in a direction away from the split body to form a pair of parallel prongs 21. Between the prongs 21 and the plate 20 there is thus provided a slot 22 for engaging over the lower flange of an I-beam 11, as clearly shown in Fig. 1. In this position of parts the fingers 21 are doubled over upon the flange of the I-beam to securely clamp the parts together and thus suspend a ceiling slab.

Vhile the above description has been restricted to steel I-beams, obviously other fireproofing floor supporting metallic members having flanges may be satisfactorily employed. Again, while a specific formof clip for suspending the ceiling slabs with respect to the floor supporting mediumshas been described, obviously other forms of metal or the upper end of which is provided with a fiat horizontal plate doubled under upon it self and terminating in a pair of elongated fingers for floor beam flange engagement, there being a grooved portion between said plate and elongated fingers.

2. A metal clip of the character stated comprising an integral structure formed from a single blank consisting of a split vertical body the lower end of which is provided with oppositely, disposed split horizontal fingers arranged in two planes for ceiling slab clip engagement, and the upper end of which is provided with a flat horizontal plate doubled under upon itself and terminating in a pair of elongated fingers for floor beam flange engagement, there being a grooved portion between said plate and elongated fingers.

FREDERICK M. VENZIE.

wire clips may be employed for suspension 7 purposes, it being my purpose to suspend from metal floor supports ceiling slabs of precast fireproofing material.

I am aware that the. invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and I therefore desire the present embodiment to be considered in all respects as illustrative and not restrictive, reference being had to the appended claims rather than to the foregoing description to indicate the scope of the invention.

What is claimed is:

1. A metal clip of. the character stated comprising an integral structure formed from a single blank consisting of a split ver-.

tical body the lower end of which is provided with oppositely disposed split horizontal fingers for ceiling slab clip engagement, and

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