US1328251A

US1328251A - Climbing device

Info

Publication number: US1328251A
Application number: US237672A
Authority: US
Inventors: John C Poetz
Original assignee: Individual
Current assignee: Individual
Priority date: 1918-05-31
Filing date: 1918-05-31
Publication date: 1920-01-13
Anticipated expiration: 1937-01-13

Description

l. C. POETZ.

CLIMBING DEVICE.

APPLICATION FILED MAY 31, 19m.

- 1,328,251. 7 Patented Jan. 13,1920.

INVENTOR.

- jfioRNE YS.

Urn

JOHN C. POETZ, OF WENATCHEE, WASHINGTON.

CLIMBING DEVICE.

Specification of Letters Patent. gPaptented Jan, 13, 1920. Substitute for application Serial Nose-s40, filed May 10, 191s. This application filed, May 31,1918. Serial To all whom it may concern:

Be it known that 1, JOHN C. POETZ, a citizen of the United States, residing at Wenatchee, in the county of Chelan and "State of Washington, have invented a new and useful Improvement in Climbing Devices, of which the following is a speclflcaclimbing devices, by which a person may rise or lower himself'by successive steps to,

or from the height to which the upri ht to be climbed is constructed, and the o bjects of my invention are to provide simple and efficient means, in lieu of the rungs or steps of the ordinary ladder, by which such rais ing and lowering may be performed, and the extent thereof determined by the operaator, thereby simplifying and lightening the construction of the device, making it more portable and convenient, and at the same time, enlarging the scope of its use. f

I attain these objects by the mechanism illustrated in the accompanying drawings in which: I

Figure 1 is an elevation at A-A, and a section at BB, Fig. 2.

Fig. 2 is a plan view of my device.

Fig. 3 is a side elevation.

Similar characters of reference refer to similar parts throughout the several views.

Referring to the drawing, 1 is a rod, preferably of steel and H-shaped in cross section. Mounted upon the oppositely disposed flanges 2 and 2 of the rod 1 are the blocks 8 and 3, so constructed as to permit of adjustment to slide freely upon or to bind upon the rod 1 to preventmovement.

Attached transversely to blocks 3 and 3" are preferably oppositely disposed footrests' 4: and 4, provided with curved pro-. jections 5 and 5, by means of which the blocks 3 and 3 are changed from a sliding or holding position to a holding or sliding position. The blocks 3 and 8 are constructed so as to slide freely upon the flanges 2 and 2, in this instance in the form of a channel bar, the flanges 6 and 6 of which are wider than the thickness of the flanges 2 and 2. To the lower ends of the flanges 6 and 6 rectangular lugs 7 and 7 are attached, the inner surfaces of which are spaced from the inner surfaces of the blocks 3 and 3 a distance slightly greater than the thickness of the flanges 2 and 2, so

the'details of construction of the flanges and blocks may be changed, and still retain their essential features. i i

The operation of my climbing device is very simple. The weight of thefoot-rests- 4L and 4' alone is sufiicient to hold the blocks 3 and 3 at any point upon the .rod 1, and the greater the weight placed upon the foot rests 4 and 4' the more firmly theblocks 3 and 3 are bound uponthe flanges 2 and 2.

A. person using my device 'stepsupon the foot-rests 1 and 1, and raises one foot upward and inward against the guard-5 or 5,

thereby bringing the inner surface ofthe blocks 3 or 3 parallel with the surface of the flanges 2 or 2', releasing the binding edges 8 and 8 andpermitting of the block being moved upward or downward on the flange. The other block is then similarly released and moved upward or downward,

and so on. By the use of the double sliding track, the feet may be moved past each other without restraint, as is usual in ordi-, nary climbing.

Having thus Icl'aimis: i

1. A climbing device of the character described comprising in combination an H- described my invention,what

Shaped rod in cross-section, channel blocks mounted upon the flanges of said H-shaped 'rod for permitting of adjustment to slide freely and bind upon said rod, foot rests transversely attached to said blocks, curved:

projections on said foot rests allowlng a changing of the blocks from a sliding or a binding position or vice versa, and rectangular lugs adjacent the; lower end of the flanges of the blocks, havingtheir inner surfacesspaced fromjthe inner surfaces of said blocks for a distance slightly greater than the thickness of said H-shaped rod flanges, said lugs and blocks binding with their inner edges upon the flanges of the H-shaped rod if pressure is exerted on said sliding.

2. In combination with a rod of H-section,

foot rests for preventing the blocks from flanges of the rod, each block having a pair of opposing lugs extending inwardly from its lower edge and across the inner face of the supporting flange toward the web of therod, the sides of one channel block having .1

their upright edges formed on a bias so as to diverge upwardly relative to the opposing edges of the companion block.

3. In combination with a rod of H-section, of foot supporting means including a channel block straddling one flange of the rod and having opposing lugs extending inwardly over the inner face of said flange toward the web of the rod, saidlugs being disposed adjacent the lower edge of the channel block, the latter extending up alongside the outer face and edges of the flange above the lugs to guide the channel block.

a. In combination with a rod of H-section,

the supporting flange toward the web of the rod, outwardly extending brackets secured to the lower portions of the blocks, ioot rests secured to the brackets,'and means located on the inner side of each foot rest beneath which the foot is engageable.

JOHNC. POETZ. Witnesses:

G. J; BOWMAN J. O. POETZ, Jr.