US83795A - Improved step-ladder - Google Patents
Improved step-ladder Download PDFInfo
- Publication number
- US83795A US83795A US83795DA US83795A US 83795 A US83795 A US 83795A US 83795D A US83795D A US 83795DA US 83795 A US83795 A US 83795A
- Authority
- US
- United States
- Prior art keywords
- ladder
- ladders
- platform
- improved step
- hangers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010276 construction Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Images
Classifications
-
- 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
- E06C1/32—Ladders with a strut which is formed as a ladder and can be secured in line with the ladder
-
- 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
- E06C1/39—Ladders having platforms; Ladders changeable into platforms
Definitions
- Figure 2 is a. detached longitudinal section, showing the position of the braces, and the manner ot fastening them, when used as an extension-ladder.
- my invention relates to that class of fruit-ladders which are constructed by pivoting two ladders, by their top rounds, to opposite sides of a platform, and bracing the saine from hangers, attached to the under side of the platform; and consists in attaching the braces to a thick guide-block, which slides up and down on the hanger, having corresponding holes in the block and hanger, to receive a pin, for the. purpose of fastening and holding the ladders from slipping, and for permanently fastening the ladders when extended to their full length.
- a A are two ladders, with rounds of the usual construction.
- C C are the hangers or legs to the platform.
- D D are the blocks or guide, to which the bracesF F are pivoted by the rounds E E.
- the holes a' 1' lr are to receive the pin H, for the purpose of taste-ning the blocks inimovably on the hangers.
- the guide-blocks D-D have a mortise through the centre, to receive the hangers C C.
- the block D D can be fastened at any elevation ot' the platform desired, and secured against the possibility of slipping, and, when the ladders are extended to their full length, the pin H may 1be inserted in the upper hole, 1f, making one continuous ladder of A A, of great strength and convenience.
Landscapes
- Ladders (AREA)
Description
uti-QU We@ ft'luiml ,W a...
j@ tant taunt (time.
y wrt-tt www CONSTANT S. HOUSE, OF DOWAGIAC, MICHIGAN.
Letters Patent No. 83,795, dated Norcmber 3, 1868.
IMPROVE!) STEP-LADDER.
The Schedule referred to in these Letters Patent and making part of the same.
description thereof, reference being had to the accompanyin g thawings, and to the letters of reference marked thereon, in Which- Figure l is a perspective view ofl the ladder when used for gathering fruit and the like purposes, and
Figure 2 is a. detached longitudinal section, showing the position of the braces, and the manner ot fastening them, when used as an extension-ladder.
The nature of my invention relates to that class of fruit-ladders which are constructed by pivoting two ladders, by their top rounds, to opposite sides of a platform, and bracing the saine from hangers, attached to the under side of the platform; and consists in attaching the braces to a thick guide-block, which slides up and down on the hanger, having corresponding holes in the block and hanger, to receive a pin, for the. purpose of fastening and holding the ladders from slipping, and for permanently fastening the ladders when extended to their full length.
To enable others skilled in the arts to make and use my invention, I will proceed to describe its use and construction.
A A are two ladders, with rounds of the usual construction.
B is the platform.
C C are the hangers or legs to the platform.
D D are the blocks or guide, to which the bracesF F are pivoted by the rounds E E.
The holes a' 1' lr are to receive the pin H, for the purpose of taste-ning the blocks inimovably on the hangers.
The guide-blocks D-D have a mortise through the centre, to receive the hangers C C.
Thus it will be seen that by means ofthe holes /r'r lr and the piu H, the block D D can be fastened at any elevation ot' the platform desired, and secured against the possibility of slipping, and, when the ladders are extended to their full length, the pin H may 1be inserted in the upper hole, 1f, making one continuous ladder of A A, of great strength and convenience.
Having thus described my invention,
What l claim as new, and desire to secure by Let ters Patent, isf The guide-blocks D D, the pin H, and roundsE E, when combined with the platform-braces and ladders, as and for the purposes setforth.
In Witness that l claim the foregoing, I have hereunto set my hand, this 3d day of September,l868.
CONSTANT S. ROUSE.-
XVitnesses S. H. WHEELER, J. CHATTERTON.
Publications (1)
Publication Number | Publication Date |
---|---|
US83795A true US83795A (en) | 1868-11-03 |
Family
ID=2153287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US83795D Expired - Lifetime US83795A (en) | Improved step-ladder |
Country Status (1)
Country | Link |
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US (1) | US83795A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL2004541C2 (en) * | 2010-04-13 | 2011-10-17 | Konink Bam Groep Nv | PORTABLE DEVICE AND METHOD FOR TEMPORALLY COVERING A HOLE IN A FLOOR. |
EP2336015A3 (en) * | 2009-12-21 | 2014-01-22 | Shao-Hua Chu | Speedy pivoting-and-fixing device for a foldable structure |
-
0
- US US83795D patent/US83795A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2336015A3 (en) * | 2009-12-21 | 2014-01-22 | Shao-Hua Chu | Speedy pivoting-and-fixing device for a foldable structure |
NL2004541C2 (en) * | 2010-04-13 | 2011-10-17 | Konink Bam Groep Nv | PORTABLE DEVICE AND METHOD FOR TEMPORALLY COVERING A HOLE IN A FLOOR. |
EP2378033A1 (en) * | 2010-04-13 | 2011-10-19 | Koninklijke BAM Groep N.V. | Portable device and method for temporarily covering a hole in a floor |
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