US1540192A - Roof collar - Google Patents

Description

June 2, 1925.

A. R. SMITH ROOF COLLAR Filed May 22, 1

Patented June 2, 1925.

UNITED STATES PATENT OFFICE.

ADDLPI-IUS B. SMITH, OF NO'RFOLK, VIRGINIA.

ROOF COLLAR.

Application filed May 22,

vide a device of this character which will Y which can be cheaply made in quantities.

i Vith these and other objects in view, my

- invention consists in certain novel and peculiar features of construction and combination of parts, as hereinafter described and claimed; and in order that it may be fully understood reference is to be had to the accompanying drawings in which similar reference characters indicate corresponding partsin all the views.

Fig. l is a sectional elevation of the collar in position;

Fig. 2 is a side elevation;

Fig. 3 is a rear elevation; and

Fig. 4 is a section through the line ll of Fig. 2.

In the drawings 1 is the vent pipe which projects through the roof 2 and in order to make a tight connection between the roof and pipe, it is customary to provide a sheet metal flashing 8, which is provided with a plate portion 4 adaptedto be secured to the roof, and a collar 5 adapted to fit around the vent pipe. When 1n position, the collar 5 is tightened up to fit close around the pipe and thereafter cement is applied around the joint to make it water tight. Due to the;

relative movement of the flashing and the vent pipe which may be caused by the expansion or contraction of the vent pipe or the sagging of the roof or from other causes, the cement will gradually work out of its position with the result that the connection will permit leakage and the rain will run down the pipe onto the ceiling below.

In order to obviate this defect of construction, I attach my collar 6 directly to the vent pipe and unconnected to the flashing, so that 1923. Serial No. 640,807.

regardless of the relative movement of the pipe and roof the connection will not leak. While devices of this character have been invented before, operating according to this principle, they have been so complicated in structure and difficult of manipulation, to make their extensive use prohibitive. The object of my invention therefore is to make a simplified collar which can be very cheaply manufactured and which is readily applied. I do this by forming the collar out of a single piece of lead. This collar may be shaped by casting or by any other suitable metal forming operation. It comprises a skirt portion 7 which is flared outwardly and out along a curve 8 so that by reversing the position relative to the slant of the roof as shown in Fig. 1, the collar can be used on steeper roofs. The collar is provided at its upper end with a band 9 and when the collar is cast, the ears 10 are formed in one piece which is sawed in two, to provide the two ears. In applying the collar in position the band 9 is expanded by pallingit apart thus opening up the slit 11. A bolt 12 passes through apertures in the ears for tightening up the collar. Lead has the property of sticking to iron and when the bolt 12 is tightened up the plasticity of the lead causes it to fit tight and the propertyof sticking causes it to adhere, thus making in a simple manner a water tight oint.

From the above description it will be apparent that I have provided a device of the character described, which possesses all the features enumerated as desirable and while I have illustrated the preferred form of the invention, it will be understood that I reserve the right to all changes properly falling within the scope and spirit of the appended claims.

Therefore what I claim as new and desire to secure by Letters Patent is: I

A roof collar made of a single piece of lead cast into shape to provide a skirt and a band, the band being provided. with a lug which is slit to provide two ears, the collar being applied in position by first pulling apart the band to open up the slit and a bolt passing through apertures in the ears for drawing the ears together to contract the band to hold the collar in position.

In testimony whereof I aflix my signature.

ADOLPHUS R.

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