US358483A

US358483A - Assiglstoe to

Info

Publication number: US358483A
Authority: US
Publication date: 1887-03-01
Anticipated expiration: 1904-03-01

Description

(No Model.)

J. ROBERTS.

WALKING TRACK FOR GYMNASIUMS.

No. 358,483; Patented Mar. 1, 1887L min/anew UNITED STATES PATENT OFFICE,

ROBERT JEFFRIES ROBERTS, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO ROBERT JAMES MILLER, OF SAME PLACE.

WALKING-TRACK FOR GYM NASIUMS.

SPECIFICATION forming part of Letters Patent. No. 358,483, dated March 1, 1887.

Application filed October 20, 1886. Serial No. 216,786, (No model.)

To aZZ whom it may concern.-

Be it known that I, ROBERT J EFFRIES Ron ERTS, of Boston, in the county of Suffolk, of the Commonwealth of Massachusetts, have invented a new and useful Improvement in Walking-Tracks for Gymnasia; and I do hereby declare the same to be described in the following specification, and represented in the accompanying drawing, which is a vertical section of a walking-track of my invention, the nature of which is defined in the claim hereinafter presented.

In constructing my said track I first evenly spread upon a wooden floor a layer of what is termed boiler-felt or other like yielding material, which I fasten to the floor by glue interposed between them and applied to the entire under surface of such covering. Next I stretch firmly over and upon the whole u pper surface of the yielding covering a layer of canvas or cotton-duck and secure it in place by nails driven through it close to its edges and into the wooden floor; Next I cover the upper surface of such canvas or duck with a series of coats of oil-paint-generally five in number-allowing each after its application to dry before the next one is spread upon it. In this way I form a track that is not only yielding to the feet of a pedestrian, but is water and dust proof, as any water applied to it for washing it cannot get through it to cause decay or injury to the elastic or yielding covering. Before applying the canvas to the felt the latter should be rolled down with a heavy garden-roller.

In the drawing, A denotes the floor; B, the yielding or elastic covering or backing of felt; O, the canvas or cotton-duck lining, and D D D D the several coats of oil-paint,

A walking-track made as above described has been found in practice to be highly useful.

I am aware that it is not new to place under a common ingrain or Brussels carpet a-layer 'of felt, and also that it is not new to cover-a sheet of canvas with paint. Consequently I do not claim such. I am not aware, however, that a felt backing has ever before been used under a painted or oil-cloth carpet, such'a carpet being affixed directly to a floor, and is inelastic, and in such conditionwill not answer for a walking-track.

I therefore claim- As a new or improved manufacture, a gymnasium walking -track, substantially as described, consisting ofa wooden floor, a layer of glue, one of thick felt or an elastic or yielding material fastened by such glue on its entire under surface to the floor, a covering of canvas or duck, and a series of coats of oilpaint applied to each other and having the lowest one applied directly to the upper surface of the canvas, all essentially as specified.

. ROBERT J EFFRIES ROBERTS.

Witnesses:

R. H. EDDY, ROBERT J. MILLER.