US1044407A - Ladder. - Google Patents

Description

W. P. MoSTAY.

. LADDER. APPLICATION FILED 10110.7, 1911.

Patented Nov. 12, 1912.

INVENTOR wmzmzc/z/qz ATTORNEYS WILLIAM FRANCIS MGSTAY, OF MONCTON,

New BRUNSWICK, CANADA, Assienon or TWENTY-FOUR AND ONE-HALF ONE-HUNDREDTHS TO CHARLES A. MURRAY, 0F

MONCTON, NEW BRUNSWICK,

CANADA, AND TWENTY-FOUR AND ONE-HALF ONE- HUNDREDTH$ ,O EDGAR S. BEADE, 0F OTTAWA, ONTARIO, CANADA.

LADDER.

Specification of Letters Patent.

Patented n 0v. 12, 1912.

Application filed December 7, 1911. SeriaLNo. 664,381.

concern:

WILLIAM F. MOSTAY, Great Britain, and

To all whom it may Be it known that I, a subject of the King of a resident of Moncton, in the Province of New Brunswick, Dominion of Canada, have invented a new and Improved Ladder of which the following is a full, clear, and exact description.

My invention relates generally to ladders and more particularly to a wire 1a der made up of a number of similar units, the construction and arrangement, however, being such that a rigid article is produced.

The principal object of my invention is to provide a new and improved ladder made up of a number of similar links rigidly connected together whereby the ladder may be ,picked up from a horizontal position'into a vertical one without coming into folded position.

Other objects and advantages of the invention will appear as the description thereof proceeds, all of which is particularly pointed out. and included in the appended claim.

Reference is'to be had to the accompanying drawings, forming a part of this specifi cation, in which similar characters of reference denote corresponding parts in all the views, and in which- Figure 1 is a front view of the ladder;

Fig. 21s a side view thereof.

The ladder is designed to be built of a number of similar sections and hence the lengthof the ladder will depend on the number of sections, used, the size of each section being dependent upon the work to which the ladder is put and the locality and occupation in which it is used.

Each linkk comprises the sides 1, and the horizontally extending cross piece 2, which piece is designed to serve as a round, the sides 1 and the piece 2 being of integral construction. Each side 1 .at its lower end is extended rearwardly in a suitable curve 3, the curve being such that the material, where it joins the horizontally extending portion 2, lies closely adjacent the rearthe bottom wardly extending portion from of the side.

The upper end of each side 1 is 7 rovided with a suitable hook 4, each hoo.- being adapted to be passed around and brought into tight engagement with the adjacent portions of the curved portion 3 and the round at one end of the round 2, the result being that each section is rigidly and non-v foldably held in engagement with the adacent section; it is to hooks extend from the front toward the rear and that the arrangement of the curved portions 3 is such that, when the parts are assembled, contact between the parts is provided, as at 5.

Each of the curved portions 3, in addinection to .the hooks' l, also properly spaces each succeeding section of the ladder from the wall or support with which it is used, thereby providing do n a ladder free from contact with the wal or support.

Each section will preferably .be made of steel wire, although it is obvious that in some cases material other desirable, the choice of such material, however, being a matter of expediency and being included within the spirit and scope of the appended claim.

Having thus claim as new, and desire to secure by Letters Patent A ladder made up of a number of units of similar construction, eachunit comprising a horizontal intermediate portion adapted to serve as a round, and vertically extending end portions integral with the said intermediate portion for engagement with a succeeding unit, whereby the units are secured together; the material the end of the said horizontal portion and the lower end of the said vertically extending portion being bent rearwardly and, then upwardly in. the form of a curve, whereby for rapid travel up and bemoted that thetion to serving as a suitable means of conthan steel may be described my invention, I 2

of the unit between the ladder may be spaced from a wall or other support, the upper ends of the vertieally extending portions being overturned to tightly clamped, the upper ends of the said vertically extending portions engaging the said upwardly bent curved portions lying betweenthe horizontally extending portion 10 and the said vertically extending portion.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

\VILLIAM FRANCIS MCSTAY.

Witnesses: I

WALTER S. BOWNESS, Anonnw A. ALLEN;

I "Copies of this patent may be obtained for five cents each, by addressing the Commissioner of latents,

Washington, D. 0.

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