US1726147A

US1726147A - Wooden stave shoe

Info

Publication number: US1726147A
Application number: US230877A
Authority: US
Inventors: William L Glenn
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-11-03
Filing date: 1927-11-03
Publication date: 1929-08-27
Anticipated expiration: 1946-08-27

Description

Aug. 27, 110.929. w, L, GLENN 1,726,147

WOODEN sTAvE SHOE Filed Nov. 3, 192'/ Patented Aug. 27, 1929.

PATENT OFFICE.

WILLIAM L. GLENN, OF CORTEZ, COLORADO.

WOODEN STAVE SHOE.

Application led November 3, 1927. Serial No. 230,877.

This invention relates to wooden stave shoes and more particularly to metal shoes for the staves of wooden conduit.

An important object of the invention is tol provide a device of this character which may be very readily applied to the stave and requires but inexpensive alterations of the stave as at present constructed.

A further object of the invention is to produce a device of this character which provides a tight seal between adjacent ends of staves and further provides means of locking the ends of staves against movement with relation to adjacent staves between which the joint is located.

These and other objects I attain by the construction shown in the accompanying drawing, wherein for the purpose of illust-ration is shown a preferred embodiment of my invention and wherein Figure l is a plan view of a portion of a wooden conduit shoe, a stave shoe applied to the joint between butt ends of staves in accordance with my invention;

Figure 2 is a sectional view on the line 2-2 of Figure 1;

Figure 3 is a section on the line 3-3 of Figure 1;

Figure 4; is a perspective view of the shoe removed. y

Referring now more particularly to the drawing, the numeral 10 generally designates a main plate having extending from its outer and inner edges at opposite sides thereof flanges 11 and 12 which are curved to correspond to the curvature at the inner and outer faces of the stave to which the shoe is to be applied. The ends of the plate are radial to the flange 11 and the plate has upstanding 4o from each face thereof between each pair of flanges 11 and 12 a longitudinally extending rib 13 which is straight and preferably per.

pendicular to a radius bisecting the plate.

The ends of the ribs 13 project slightly beyond' the end edges of the plate, as indicated at 14.

In employing the shoe, the stave is formed across its end face with a slot 15 for the reception of the rib 13 and since the flanges 11 and 12 are arcuately curved while the rib is straight, it willl be obvious that the shoe when placed in posit-ion upon the stave is held against transverse movement thereon, so that it is at all times properly centered. The distance between the outer face of the flange 11 or inner wall flange and the inner face of the outer wall flange 11 is preferably made equal to the thickness of the stave employed and the inner face of the stave is rabbeted, as at 16, to accommodate the flange 11, so that when the conduit is complete, the inner surface thereof will be smooth and free from obstructions.

In assembling the staves, it will be obvious that the projection of the ribs 13 beyond the ends of the shoe will provide an extended portion which may engage in the side face of an adjacent stave, as more clearly shown in Figure 3 holding this stave against dis-k placement with relation to the staves joined by the shoe and providing a seal therebetween.

Since the construction hereinbefore set forth is capable of a certain range of change and modification without materially departing from the spirit of the invention, I do not limit myself to such specific structure except as hereinafter claimed.

I claim In combination, a stave having its inner and outer faces curved, a plate having its edges arcuately curved to conform to the curvature of the inner and outer edges of the stave, longitudinally curved flanges extending from opposite edges of the plate and at opposite sides thereof, and a ribextending from each face of the plate between said flanges, said rib being longitudinally straight, said stave having in its end face agroove for the reception of said rib, said rib being of greater depth than the flanges whereby it projects beyond the outer faces thereof to permit initial enga-gement of the rib in the groove ofthe stave.

In testimony whereof I hereunto affix my signature.

WILLIAM L. GLENN.