US1069886A - Glazing-bar and the like. - Google Patents

Description

H. G. LASSAM & T. M. THOM.

GLAZING BAR AND THE LIKE.

APPLICATION FILED SEPT. 21, 1911.

1,069,886. Patented Aug. 12, 1913.

2 SHEETS-SHEET 1.

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HARRY CLIFFORD LASSAM, 0F WALTON-ON-THAMES, AND THOMAS MA'THIESON THOM, OF CHESHUNT, ENGLAND.

GLAZING-BAR AND THE LIKE.

Application filed September 21, 1911.

To all whom it may concern:

Be it known that we, HARRY CLIFFORD Lxssau and THOMAS MA'rninsoN TnoM,

subjects of the King of Great Britain, and

residents of The Hut, lValton-on-Thames, Surrey, England, gentleman, and foodlands, Cheshunt, inthe county of Hertfordshire, England, chemical engineer, respectively, have invented new and useful Improvements in Glazing-Bars and the Like, of which the following is a specification.

Hitherto glazing bars, purlins, ridges, hips, plates and framings made of cement, concrete, and reconstructed stone or marble have not been generally used in the con struction of glass roofs and skylights, partly because of the difficulty of providing satis factory reinforcement and prevention against cracking, and partly because a lead flashing embedded in the material has not been furnished without which the edges of the glass cannot so far be made water tight. Most usually iron or steel-barsare employed covered with sheet lead or drawn lead caps, portions of which are dressed over the edges of the glass.

The object of the present invention is to provide glazing bars and the like of cement, concrete, or reconstructed stone or marble sufliciently strong for use in the construction of glass roofs and skyli hts, and pro- 'vided with lead flashing for hxing the glass and covering the edges thereof.

According to the present invention the reinforcement for the concrete, cement or reconstructed stone or marble bar, consists of a strip of sheet metal, preferably iron or steel. This metal strip is arranged on edge within the cement, concrete, recon structed stone or the like, and a strip of lead is applied to that portion which forms or is inclosed in the tongue. For instance, the iron or steel strip may have edge projections which pierce the strip of lead arranged at right angles thereto. The projections of the reinforcement extend upward into the tongue of the bar and the lead when spread out extends laterally therefrom. Alternatively a portion of the reinforcement may itself form the tongue which will then be covered by lead folded over and back again as hereinafter more fully described. Both the iron reinforcement strip and the lead flashing strip are pierced transversely with holes so that the cement, concrete or recon- Specification of Letters Patent.

Patented An 12,1913.

Serial No. 650,555.

structed stone or marble on opposite sides of the strips will key itself through the said holes. In manufacturing the bars it will be convenient to fit together the iron or steel strip which is to form the reinforcement and the lead strip which is to form the flashing, and to introduce the same into a suitably shaped mold; The reconstructed stone or similar material in a plastic or sen'ii-plastic condition is then filled into the mold, care being taken that the reinforcement shall be entirely embedded both at the sides and at both ends, and that the edges of the lead shall be onthe outside of the tongue at a height sufficientto allow of the glass lying below the same. On emerging from the mold the bar will be in the shape desired with the edges or wings of the lead strip suitably placed with regard to the tongue of the bar. Any well known treatment for hardening the bar may be employed. The edges or wings of the lead strip when the bar is in position and the glass laid therein can be easily dressed over the edges of the glass exactly as with the lead covered iron bars at present in use. The pressure for solidifying the material used is put on the end of the bar and the reinforcement is stopped short at both ends thus-rendering it impossible to buckle up in any way. The reinforcement is thus sealed at either end. lVe can manufacture ridges and hips in the same manner the only difference being that the reinforcement and lead flashings used would of necessity be of a larger size. The bar would be fixed to the ridges and hips by calked dowels fixed to the reinforcements at the top of the bar and cemented into slots prepared for them ii; the ridges and hips. The bottom of the bar will be fixed by a sliding calked dowel in a similar manner.

In the accompanying drawings we have illustrated our invention as applied to glazing bars, purlins, ridges, etc.

Figure 1 is a section of a bar of common form. F ig'. l is a plan view of the lead strip. Fig. 1 is an end View of a bar showing theglass stop. Fig. 1 is a longitudinal sectional elevation showing the reinforcement. Fig. 2 is a section of another bar of different form. Fig. 2 is a longitudinal sectional elevation showing the reinforcement. Fig. 3 is a section of another bar. Fig. 8 is a broken plan of the lead strip.

Fig. 3 is an elevation of the reinforcement. Fig. 4 is an elevation partly in section of a reinforced ridge showing also the method of fixing the glazing bar thereto. Fig. 5 is an elevation of a reinforced head showing also the method of fixing the glazing bar thereto. Fig. 6 shows a modified arrangement in which the tongue has no covering of stone, concrete, or the like, but is entirely of the metal forming the reinforcement.

The same letters refer to the corresponding parts in the different figures.

a is a glazing bar of concrete or other material provided with a reinforcement Z) which reinforcement has turned out wings a. In Fig. 1 these wings are formed by making a out like an H in the metal of the reinforcement and turning the top and bottom halves opposite ways, thus leaving a square hole through which the concrete or other material can key itself.

(Z is a lead strip to be used as a flashing for the glass 6.

f is the tongue of the glazing bar which will be formed on the spear points or projections g of the reinforcement.

h are holes in the reinforcement through which the concrete or other material forms a key.

7' are holes in the lead strip through which the reinforcement passes.

k are holes in the lead strip through which the concrete keys itself.

Z are channels in the concrete for collecting moisture.

m are channels for water of condensation. These channels lead to holes 11. in the glass stop 0 of the glazing bar.

2) are calked dowels for fastening the bar to the ridges, purlins, etc. The ends of the dowels are cemented into the ridges as shown in Fig. 4. The other ends of the calked dowels are fastened to the reinforcement of the bar, in some cases (see Fig. 1 by a slot and pin arrangement to allow of the requisite play in fixing.

In Fig. 4 the ridge shown is reinforced in the same way as the glazing bars, the lead flashing d being dressed over the glass of the glazing bar.

In Fig. 5 is shown an asbestos thread g running the whole length of the head (also of reinforced concrete or stone) to support the glass and prevent wind, dust or snow driving under it. s is a weeping hole to carry off any moisture that may condense on the glass.

In Fig. 6 a strip of hard metal Z) such as iron or steel is embedded as to half its width or thereabout in a bar of concrete, cement, or reconstructed stone or marble a.

The covering material constitutes the support for the glass 6 to rest on and the 6X- posed metal constitutes the tongue f. A strip of lead d is laid over the tongue and dressed down the side thereof. Folds 1 of the lead strip are firmly embedded near the root of the tongue in the concrete or other material and the edge or edges of the lead strip after being turned back again from the covering material are free to be dressed over the edges of the glass which rest on the bar in the usual manner.

A glazing bar is thus formed of reinforced cement, concrete or reconstructed stone or marble with a lead covered tongue and a flashing capable of preventing leaks at the edges of the glass. The reconstructed stone or marble after being molded on the metal reinforcement and receiving the folds of the leaden strip is dried and hardened in any suitable manner.

That we claim and desire to secure by Letters Patent of the United States is l. A bar of the character described consisting of a metallic reinforcement, a lead flashing strip intimately engaged with the metallic reinforcement and a body of concrete in which the said reinforcement and flashing strip are embedded leaving an efiective portion of the flashing strip projecting from the concrete.

2. A bar of the character described consisting of a metallic reinforcement, a lead flashing strip, the said reinforcement and strip being provided the one with perforations and the other with projections for interlocking the reinforcement and strip and a body of concrete in which the reinforcement and flashing strip are embedded leaving an effective portion of the flashing strip projecting from the concrete.

I11 testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

HARRY CLIFFORD LASSAM.

THOMAS MATHIESON THOM. lVitnesses IVALTER HENRY HAILEs,

CECIL SHERBURN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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