US34314A - Improved folding staircase and ladder - Google Patents
Improved folding staircase and ladder Download PDFInfo
- Publication number
- US34314A US34314A US34314DA US34314A US 34314 A US34314 A US 34314A US 34314D A US34314D A US 34314DA US 34314 A US34314 A US 34314A
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- United States
- Prior art keywords
- ladder
- bars
- stair
- staircase
- series
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
- E06C1/387—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders having tip-up steps
Definitions
- my invention consists in a combination of parallel rails or bars and a series of stair-plates arranged and connected substantially in manner and so aste operate as described; and my said invention further consists in a combination of a series of hand'- holes with the said stair-plates and their rails or connecting-bars, and under an arrange'- mentand fora purpose substantially as hereinafter described.
- My invention further consists in the combination of one ormore spring-catches and a ⁇ series of notches or mechanical equivalents therefor, with the system or combination of parallel bars and stair-plates, and in a manner-so as to operate substantially as and for a purpose, as hereinafter explained.
- the said portable staircase or ladder may be used at the side of a ship or Vessel either while at a wharf or pier or while having a boat alongside. It will also answer a good purpose when laid on a pitched or sloping roof of a building, in which case it may be used to enable a person to ascend such roof. There are also -Various other uses to which it may be devoted advantageously.
- a A and B B are two sets of bars or rails arranged parallel vto one another, and so that each two rails of either set shall at the same time be parallel.
- Each stair at or near its front edge I provide with two or any other suitable number of hand-openings a a, which I arrange in the stair, as shown in Fig. 3.
- Their purpose is to enable a. person to seize a firm hold on one or more of the stair-plates while he may be in the act of ascending the stairway, and particularly when the latter may be elevated into or nearly into a vertical position.
- a spring-catch b may be fastened to the inner edge of one of the barsA A or B B of each set,and so as to extend over to the other or adjacent edge of the other bar and operate in connection with a series of notches cc c made therein, as shown in Figs. 1 and 2.
- These catches will' serve to maintain the two bars of their respective sets at any suitable distance asunder (within their range of motion) from each other, and particularly while the staircase may be supported in position by the lower ends of the two front bars only being made to rest on a iioor orobj ect, the lower ends of the rear bars being supposed to be raised off such floor'or object.
- the two ⁇ outer bars A B may serve as hand-rails or guards, as well to protect a person in as to facilitate his as- -cent or descent of the stairway.
- the -several stairplates of the series may be vbrought into horizontal positions while the bars A A B B may be at any inclination to thehorizon. This renders the staircase very useful as a ship- -ladder or as a means of ascending a pitched roof, or from one surface to a higher level.
- staircase Another advantage of the staircase is its being able to be contracted or folded into a small compass and thus be rendered very portable, as well as easy to bev packed in a small space.
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- Ladders (AREA)
Description
C; MfoNsoN. l FOLDING STAIBCASE AND LADDER.
No. 34,314. Patented Feb. 4, 1862.
wif/@6,5565 I ZY/vena r:
co.. PHnTo-LITNU., WASHINGTON. n4 c.,
y ,wz-noms PETERS UNITED STATES PATENT OFFICE.
CII-ARLES MONSON, OF NEW7 HAVEN, CONNECTICUT.
IMPROVED FOLDING STAIRQASE AND LADDER.
Specication forming part of Letters Patent No. 34,314, dated February 4,1862.
To all whom it may concern:
Beit known that I, CHARLES MONSON, a citizen of the United States of America, and a resident of the city and county of New Haven, of the State of Connecticut, have invented an Improved Ship-Ladder or Folding Staircase; and I do hereby declare the same to be fully describediin the following specification, and represented in the accompanying drawings, of which- Figure 1 is aefront elevation, Fig. 2 a side elevation, and Fig. 3 a transverse section, of it.
The nature of my invention consists in a combination of parallel rails or bars and a series of stair-plates arranged and connected substantially in manner and so aste operate as described; and my said invention further consists in a combination of a series of hand'- holes with the said stair-plates and their rails or connecting-bars, and under an arrange'- mentand fora purpose substantially as hereinafter described.
My invention further consists in the combination of one ormore spring-catches and a` series of notches or mechanical equivalents therefor, with the system or combination of parallel bars and stair-plates, and in a manner-so as to operate substantially as and for a purpose, as hereinafter explained.
The said portable staircase or ladder may be used at the side of a ship or Vessel either while at a wharf or pier or while having a boat alongside. It will also answer a good purpose when laid on a pitched or sloping roof of a building, in which case it may be used to enable a person to ascend such roof. There are also -Various other uses to which it may be devoted advantageously.
Inthe drawings, A A and B B are two sets of bars or rails arranged parallel vto one another, and so that each two rails of either set shall at the same time be parallel.
' Between the four rails, arranged as exhibited in theV drawings, is a'series of stair-plates C (l C, each of which at its two ends is connected with or joined to two bars or arms D D. There are two series of the said arms or bars, those of each set being arranged parallel to each other and jointed to two ofthe bars (by joint-pins in the same manner 'as are the joint-bars of a draftsnians parallel ruler composed of two rulers and two connection-bars.
Each stair at or near its front edge I provide with two or any other suitable number of hand-openings a a, which I arrange in the stair, as shown in Fig. 3. Their purpose is to enable a. person to seize a firm hold on one or more of the stair-plates while he may be in the act of ascending the stairway, and particularly when the latter may be elevated into or nearly into a vertical position.
If desirable, a spring-catch b may be fastened to the inner edge of one of the barsA A or B B of each set,and so as to extend over to the other or adjacent edge of the other bar and operate in connection with a series of notches cc c made therein, as shown in Figs. 1 and 2. These catches will' serve to maintain the two bars of their respective sets at any suitable distance asunder (within their range of motion) from each other, and particularly while the staircase may be supported in position by the lower ends of the two front bars only being made to rest on a iioor orobj ect, the lower ends of the rear bars being supposed to be raised off such floor'or object..
When the stairway is used to extend from the side or bulwark of aship to the upper surface of a wharf or pier, the two`outer bars A B may serve as hand-rails or guards, as well to protect a person in as to facilitate his as- -cent or descent of the stairway.
By means of a folding ladder or staircase made as above described, the -several stairplates of the series may be vbrought into horizontal positions while the bars A A B B may be at any inclination to thehorizon. This renders the staircase very useful as a ship- -ladder or as a means of ascending a pitched roof, or from one surface to a higher level.
Another advantage of the staircase is its being able to be contracted or folded into a small compass and thus be rendered very portable, as well as easy to bev packed in a small space.
I clailn- I 1.. The above-desc ribed ship-ladder or folding staircase or combination of stair-plates (or mechanical equivalents) and parallel bars arranged and connected, substantially in manner and so as to operateas described.
2. The combination and arrangement of a series of hand-holes with the said stair-plates,
(or their eqnivxlventsv and their paralleljbars when arranged and connected, substantially in manner and so as to operate as specified.
3. The combination, of a spring-catch and series of notches or mechanical equivalents therefor, with thestairway constructed of stair-plates, andp'arailel bars, arranged in manner and so as to operate substantially as set forth.
CHARLES MONSON.
Witnesses:
A. S. MoNsoN, W. M. WHITNEY.
Publications (1)
Publication Number | Publication Date |
---|---|
US34314A true US34314A (en) | 1862-02-04 |
Family
ID=2103899
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US34314D Expired - Lifetime US34314A (en) | Improved folding staircase and ladder |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2508915A (en) * | 1948-11-18 | 1950-05-23 | Robert Mitchell Company Ltd | Foldable ladder |
US2527834A (en) * | 1946-03-12 | 1950-10-31 | John L Mcglothlen | Stepladder |
US5788423A (en) * | 1995-09-08 | 1998-08-04 | G.P. Industries, Inc. | Masonry block retaining wall with attached keylock facing panels and method of constructing the same |
US6029943A (en) * | 1996-11-08 | 2000-02-29 | Anchor Wall Systems, Inc. | Splitting technique |
US20040037655A1 (en) * | 1999-02-11 | 2004-02-26 | Macdonald Robert A. | Retaining wall block system |
US20040156687A1 (en) * | 2001-11-02 | 2004-08-12 | Knudson Edward Alan | Environment resistant retaining wall planter block and methods of use thereof |
US20050108973A1 (en) * | 2001-10-18 | 2005-05-26 | Westblock Systems, Inc. | Wall block, system and mold for making the same |
US20060108374A1 (en) * | 2004-11-24 | 2006-05-25 | Holopack International Corp. | Dispensing container |
US20110139544A1 (en) * | 2009-08-21 | 2011-06-16 | Rory Frick | Ladder |
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0
- US US34314D patent/US34314A/en not_active Expired - Lifetime
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2527834A (en) * | 1946-03-12 | 1950-10-31 | John L Mcglothlen | Stepladder |
US2562564A (en) * | 1946-03-12 | 1951-07-31 | John L Mcglothlen | Ladder tread |
US2508915A (en) * | 1948-11-18 | 1950-05-23 | Robert Mitchell Company Ltd | Foldable ladder |
US5788423A (en) * | 1995-09-08 | 1998-08-04 | G.P. Industries, Inc. | Masonry block retaining wall with attached keylock facing panels and method of constructing the same |
US6029943A (en) * | 1996-11-08 | 2000-02-29 | Anchor Wall Systems, Inc. | Splitting technique |
US20040037655A1 (en) * | 1999-02-11 | 2004-02-26 | Macdonald Robert A. | Retaining wall block system |
US20050108973A1 (en) * | 2001-10-18 | 2005-05-26 | Westblock Systems, Inc. | Wall block, system and mold for making the same |
US20040156687A1 (en) * | 2001-11-02 | 2004-08-12 | Knudson Edward Alan | Environment resistant retaining wall planter block and methods of use thereof |
US20060108374A1 (en) * | 2004-11-24 | 2006-05-25 | Holopack International Corp. | Dispensing container |
US20110139544A1 (en) * | 2009-08-21 | 2011-06-16 | Rory Frick | Ladder |
US9587434B2 (en) | 2009-08-21 | 2017-03-07 | Rory Frick | Ladder |
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