US1149912A - Tread device. - Google Patents

Description

W. B. HARRELL.

TREAD DEVICE.

APPLICATION FILED ARAB. 1914.

1,119,912. Patented Au plo, 1915.

amamto'o WILLIAM B. HARRELL, or BALDWIN, FLORIDA.

TREAD DEVICE.

Specification of Letters Patent.

Patented Aug. 10, 1915.

Application filed March 18 1914. Serial No. 825,587.

To all whom it may concern:

Be it known that 1, WILLIAM B. HARRELL, a citizen of the United States, residing at Baldwin, in the county of Duval and State of Florida, have invented new and useful Improvements in Tread Devices, of which the following is a specification.

The invention relates to tread devices, and more particularly to the class of combined easy walking and rolling devices.

The primary object of the invention is the provision of a device of this character wherein walking is rendered easy and the user can coast down grade, the device being of novel form and is readily and easily applied to the user.

Another object of the invention is the provision of a combination .device of this character which is extremely simple in construction and inexpensive in manufacture.

With these and other objects in view, the invention consists in the construction, combination and arrangement of parts as will be hereinafter fully described, illustrated in the accompanying drawing, and pointedout in the claim hereunto appended.

In the drawing: Figure 1 is a perspective view of a device applied to the user and ready for coasting. Fig. 2 is a side elevation, showing the wheels raised with the device ready for use in walking. Fig. 3 is a vertical transverse sectional view through one of the devices. Fig. 4 is a detail view showing the adjustable connection of the wheel with the standard.

Siniilar reference characters indicate corresponding parts throughout the several views in the drawing.

Referring to the drawing in detail, the combination device comprises a pair of similarly constructed foot and leg attachments, each comprising a sole and heel plate 5 carryingthe usual adjustable sole and heel clamps 6 and 7 respectively, for the fastening of the said plates to the shoe of the user. In addition to the clamps this plate 5 has fixed thereto adjustable straps 8 which assist in fastening the plate to the shoe.

Suitably fixed to and depending from the plate 5 are a series of coiled compression springs 9 WhlCll also are fixed to a tread plate 10 which is adapted to yield when is adapted to be fastened about the leg just below the knee to brace the ankle and foot. Slidably connected to the brace rod 11 is a clip 13 carrying an outwardly projected axle 14 on which is journaled a tired bicycle wheel 15, which is of the ordinary well- ,known construction, the clip 13 being provided with a suitable fastening device 16 which looks the said clip in adjusted position so that the wheel 16 can be brought in contact with the ground and the tread plate 10 elevated the desired distance above the same, thus enabling the user to coast on down grade.

From the foregoing it is thought that the construction and manner of use of the device will be clearly understood, and therefore a more extended explanation has been omitted.

What is claimed is A device of the class described comprising a foot plate, a standard rising from one side thereof and having a leg embracing ring, clips mounted on the plate and adapted for locking engagement with the shoe of a wearer, a plurality of resilient springs fixed to the plate and depending therefrom, a tread plate secured to the springs and resiliently supported thereby, and a wheel having its axle adjustably connected to the standard to bring the tread of the wheel or the tread plate in contact with the ground.

In testimony whereof I aflix my signature inpresence of two witnesses.

WILLIAM B. HARRELL. Witnesses E. P. BEACH, D. J. PARISH.

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