US73468A

US73468A - Improvement in ladbees

Info

Publication number: US73468A
Authority: US
Publication date: 1868-01-21
Anticipated expiration: 1885-01-21

Description

PATENTED JAN 2l 1868 Wwesw si @uitrit -faire getarnt @ft-rr.

- ABRAHAM SIMMERMAN,I OF. GLASSBORO', AND JACOBA S. SIMMERMAN, OF

' MILLVILLE, NEW JERSEY.

Leiters .Patent No. 73,468, dated January 21, 1868.

IMPROVEMENT IN mousse.

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TO ALL WHOM IT MAY CONCERN: y

Be it known that we', ABRAHAM SIMMERMAN, ot' Glassboro, and .ineen S. SIMMERMAN, of Millville, State of New Jersey, have invented certaih-new and useful Improvements in selfraeingliadders; and we do hereby declare that the following is aifull, olear,11.nd exact description thereof', reference being had lto the accompanying drawings, and to the letters of reference marked thereon, which forma part of this specification. In the annexed drawings, which make a part of this speciication- Figure 1 represents a perspective of our ladder when extended.

Figure 2 is a side elevation of the saine. t

The object of our invention is to construct a ladder which, by the union of several devices, will perform the oices of three distinct ladders.

'l'he letters A and B, tig. 1, representtwo sections oi' a common ladder, the section A being mode sufficiently narrow to slip in between the side rails of section B, and is confined, when in position, bythe metalrod G and plates cl, the said plates being mnde to play on their respective bolts, which pass through the rails B, and will, when in a horizontal position, rest against a. pin in the rail A. By the use oi this simple device an extensive ladder, reaching to any desired height, can be made. The lower end of section B is supported by the legs e and f, with u. bolt, s, which passes through the sides of B and legs e and f, and also through the ladder H, near its top. g g represent two hooks, the lower ends of which are looped on a round in ladder H, and their upper ends hooked over the lowest round in ladder B. Two shorter hooks, t h, are looped' on the same round with the hooks gg, and are made to catch in staples near the lower end of section B, The object of the two sets of hooks is to alter the relative position of the ladder H with the sections B and A. K represents a short section of aladder pivoted to ladder H, near its lower end. When section K islbrought in lino with ladder H, the middlerouud in K will rest against a shoulder at the end of H, and be thus held in position. m represent two sets of arms pivoted to similar arms i. The arms m are allowed to play vertically on the same pivots that confine section K with ladder H. When the arms mand 1,' nre in line, they are supported in that position by the pin t in arms t', which rest against n. shoulder in arms m. The lowerends ot' arms z' are perforated, to receive the round which holds the legs e andf together near their base.

When using our ladder for the purpose of painting the walls oi' houses, the two metal plates cl must be turned to a horizontal position, so as to extend over the rails ot' section A. The two sections A and B- now -being in line, the hooks h h must be secured to the staples in section B, and the ladder will be held in firm position.

Itwill be observed that, as the various sections of our ladder are adjustable, it can be arranged so as to form a. step-ladder, a scall'old, orin other required forms.

Having thus described our invention, what we claitn, is-

The sections A B H K, in combination with hooks g g h t, arms m z', and legs e f, all arranged to form ni perfect self-bracing ladder, substantially in the manner described.

In testimony that we claim the foregoing-as our own, we aix our signatures in presence oftwo witnesses.

ABRM. SIMMERMAN, J. S. SIMMERMAN.

Witnesses:`

JAQoB JOHNSON,

WILLIAM O. JonNsQN.