US273188A - Okange m - Google Patents
Okange m Download PDFInfo
- Publication number
- US273188A US273188A US273188DA US273188A US 273188 A US273188 A US 273188A US 273188D A US273188D A US 273188DA US 273188 A US273188 A US 273188A
- Authority
- US
- United States
- Prior art keywords
- ladder
- brace
- side pieces
- plate
- secured
- 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
- 240000005674 Ceanothus americanus Species 0.000 description 2
- 210000000282 Nails Anatomy 0.000 description 2
- ASCUXPQGEXGEMJ-GPLGTHOPSA-N [(2R,3S,4S,5R,6S)-3,4,5-triacetyloxy-6-[[(2R,3R,4S,5R,6R)-3,4,5-triacetyloxy-6-(4-methylanilino)oxan-2-yl]methoxy]oxan-2-yl]methyl acetate Chemical compound CC(=O)O[C@@H]1[C@@H](OC(C)=O)[C@@H](OC(C)=O)[C@@H](COC(=O)C)O[C@@H]1OC[C@@H]1[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](OC(C)=O)[C@H](NC=2C=CC(C)=CC=2)O1 ASCUXPQGEXGEMJ-GPLGTHOPSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
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
- E06C1/14—Ladders capable of standing by themselves
- E06C1/16—Ladders capable of standing by themselves with hinged struts which rest on the ground
- E06C1/20—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles
Definitions
- the object of this invention is to produce a light, strong, and simple step-ladder which can be readily adjusted to stand at different inclinations; and my invention consists of the peculiar construction of the body of the ladder, as will be hereinafter fully described, and pointed out in the claim.
- Figure 1 is a vertical section of my improved step-ladder set up for use.
- Fig. 2 is a rear elevation, showing the ladder folded up.
- Fig. 3 is a horizontal section in line a; a), Fig. 1.
- Fig. 4 is a partly-sectional view, on an enlarged scale, of the means whereby the end of the brace is adj ustabl y attached to the body of the ladder.
- A'A represent the side pieces of the body of the ladder, each composed of a single piece of wood of suitable size, and each provided with a longitudinal slot, at, which is formed by sawing a strip out of each side piece.
- B represents thesteps, arranged between the side pieces, A, and secured to the upper sides of cross-pieces b, which project into the slots at of the side pieces, and are secured therein by nails driven through the side pieces and the ends ot'the cross-pieces.
- the crosspieces connect and brace the side pieces,,and at the same time support the steps, thereby forming a very strong and light step-frame.
- - 0 represents the standard, which is hinged with its upper end to the top piece, D, of the ladder, and E is the brace which connects the lower part of the standard with the body of the ladder.
- the brace E is hinged with its lower end to a cross-piece, f, of the standard, and passes with its opposite end through a perforated plate or sleeve, G, which is secured to one of the steps B and projects rearwardly therefrom.
- the end of thebrace is provided,
- the brace 11 is a set-screw which works in a screwthreaded opening in the rear portion of the sleeve or plate G, and which bears upon the brace.
- the brace Upon loosening the set-screw i the brace can be moved in the opening of the plate or sleeve G to adjust the inclination of the standard, or to fold up the ladder, and by tightening the set-screw the brace is secured in the desired position.
- the shoulder h at the end of the brace prevents the latter from becoming disconnected from the body of the" ladder it' the set-screw should become loose, thereby preventing the standard from swinging farther from the body than is proper or safe.
- the plate G is preferably constructed of malleable or other suitable metal.
Description
' (No Model.)
0. M. SWEET. STEP LADDER.
No. 273,188. Patented Feb.27, 1883.
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v UNITED. STATES PATENT OFFICE.
' ORANGE SWEET, OF FORESTVILLE, NEW YORK.
STEP-LADDER.
SPECIFICATION forming part of Letters Patent No. 273,188, dated February 27, 1883.
Application filed April 25, 1882. (No model.)
To all whom it may concern:
Be it known that I, ORANGE M. SWEET, of Forestville, in the county of Chautauqua and b'tate of New York, have invented a new anti useful Improvement in Step-Ladders, of which the following is a specification.
The object of this invention is to produce a light, strong, and simple step-ladder which can be readily adjusted to stand at different inclinations; and my invention consists of the peculiar construction of the body of the ladder, as will be hereinafter fully described, and pointed out in the claim.
In the accompanying drawings, Figure 1 is a vertical section of my improved step-ladder set up for use. Fig. 2 is a rear elevation, showing the ladder folded up. Fig. 3 is a horizontal section in line a; a), Fig. 1. Fig. 4 is a partly-sectional view, on an enlarged scale, of the means whereby the end of the brace is adj ustabl y attached to the body of the ladder.
Like letters of reference refer to like parts in the several figures.
A'A represent the side pieces of the body of the ladder, each composed of a single piece of wood of suitable size, and each provided with a longitudinal slot, at, which is formed by sawing a strip out of each side piece.
B represents thesteps, arranged between the side pieces, A, and secured to the upper sides of cross-pieces b, which project into the slots at of the side pieces, and are secured therein by nails driven through the side pieces and the ends ot'the cross-pieces. The crosspieces connect and brace the side pieces,,and at the same time support the steps, thereby forming a very strong and light step-frame.
- 0 represents the standard, which is hinged with its upper end to the top piece, D, of the ladder, and E is the brace which connects the lower part of the standard with the body of the ladder. The brace E is hinged with its lower end to a cross-piece, f, of the standard, and passes with its opposite end through a perforated plate or sleeve, G, which is secured to one of the steps B and projects rearwardly therefrom. The end of thebrace is provided,
above the sleeve or plate G, with an enlarge.
ment or shoulder, h, which prevents the end of the brace from being drawn downwardly through the opening of the plate Gr, so as to disconnect the brace from said plate.
11 is a set-screw which works in a screwthreaded opening in the rear portion of the sleeve or plate G, and which bears upon the brace. Upon loosening the set-screw i the brace can be moved in the opening of the plate or sleeve G to adjust the inclination of the standard, or to fold up the ladder, and by tightening the set-screw the brace is secured in the desired position. The shoulder h at the end of the brace prevents the latter from becoming disconnected from the body of the" ladder it' the set-screw should become loose, thereby preventing the standard from swinging farther from the body than is proper or safe. The plate G is preferably constructed of malleable or other suitable metal.
I am aware that it is not new to construct the side pieces of the step-frame with longitudinal slots, and the steps with tenons fitting in these slots and against the edges of the side pieces, to which they are secured by rivets; and Iain aware that it is not new to construct the outer sides of the side pieces of the step-frame of the step-ladder and the under sides of the
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US273188A true US273188A (en) | 1883-02-27 |
Family
ID=2342418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US273188D Expired - Lifetime US273188A (en) | Okange m |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US273188A (en) |
-
0
- US US273188D patent/US273188A/en not_active Expired - Lifetime
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