US79520A - Sachusetts - Google Patents
Sachusetts Download PDFInfo
- Publication number
- US79520A US79520A US79520DA US79520A US 79520 A US79520 A US 79520A US 79520D A US79520D A US 79520DA US 79520 A US79520 A US 79520A
- Authority
- US
- United States
- Prior art keywords
- ladder
- foot
- raymond
- sachusetts
- thomas
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/42—Ladder feet; Supports therefor
- E06C7/44—Means for mounting ladders on uneven ground
Definitions
- the nature of our invention consists in providing one side of a ladder with an adjustable foot, made ofirovn, brass, or other suitable material, in sneh a. manner that the leg of thev ladder can be made longer, if' desired,
- A represents a ladder, to One/side Of which the movable fotB'is attached.
- This foOt'B is made of iron, vbrassor other suitable material, and has two slots, a a, through it. It is attached to the side of the ladder A by means of the 'two screws b which run from the inner sideof the ladder through the vslots a a onthe foot B, and it isifastened at anypointdesired, by the thumb-screws c c.
- the movable foot'B can be extended below the foot of theladder, so as to adapt the'la'dder to any uneven or sloping ground, and thereby preventing accidents, which are always-more 'or less liable to occur when a. common ladder is raised on such ground.
Description
@einen tntrs gntrntffirr.
thereby adapting the ladder to uneven or sloping ground.
OAR-L C. T. THOMAS AND FRIEDRIGK A. S. RAYMOND, .OFBEVERLK vMAS- SACHUSETTS.
IMPROVEMENT INy LADDBRS.
@tige .Sthehule refetrh tain these tetters atent mit making part nf ik: arms.
To ALL WHoM-IT MAYOONOERN:
. Be it known that-we, CARL C. T. THOMAS and FREDRIOK A. S, RAYMOND',v of Beverly, in the county of' Essex, and in the' State of Massachusetts, have invented ertain new and useful Improvements in Extension- Ladde'rsyand do hereby declare that the following isa full, clear, and exact description thereof', reference being 11nd to the accompanyingdrawings, and to theletters of reference marked thereon.
In the annexed drawings, forming part of th ie specifi cation Figure 1 is a. planview, andv v 'Figure 2 is a side view.
The nature of our invention consists in providing one side of a ladder with an adjustable foot, made ofirovn, brass, or other suitable material, in sneh a. manner that the leg of thev ladder can be made longer, if' desired,
To enable Others skilled in the argomake and use ourinvention, we'will proceed to describe its construction andgoperation. n v
' In the drawings, A represents a ladder, to One/side Of which the movable fotB'is attached. This foOt'B is made of iron, vbrassor other suitable material, and has two slots, a a, through it. It is attached to the side of the ladder A by means of the 'two screws b which run from the inner sideof the ladder through the vslots a a onthe foot B, and it isifastened at anypointdesired, by the thumb-screws c c. By this arrangement the movable foot'B can be extended below the foot of theladder, so as to adapt the'la'dder to any uneven or sloping ground, and thereby preventing accidents, which are always-more 'or less liable to occur when a. common ladder is raised on such ground. I
Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is- The movable fo'ot B, constructed and attached to the side of the ladder, substantially as and for the purposes herein set forth. v Intestimony that we claim the foregoing, we have hereunto set our hands, this fourth day of May, 1868.-
' CARL o. T. THOMAS,
.lSREDRlCK` A., S. RAYMOND.
Witnesses:
SAMUEL D. HnRnIcK, B. C. RAYMOND.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US79520A true US79520A (en) | 1868-06-30 |
Family
ID=2149016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US79520D Expired - Lifetime US79520A (en) | Sachusetts |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US79520A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030156611A1 (en) * | 2002-02-21 | 2003-08-21 | Hoki Kwon | GaAs/Al(Ga)As distributed bragg reflector on InP |
-
0
- US US79520D patent/US79520A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030156611A1 (en) * | 2002-02-21 | 2003-08-21 | Hoki Kwon | GaAs/Al(Ga)As distributed bragg reflector on InP |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US75900A (en) | Improvement in spring-bottoms foe boots and shoes | |
| US79520A (en) | Sachusetts | |
| US87848A (en) | Improvement in harness-connection for looms | |
| US80295A (en) | Benjamin f | |
| US90699A (en) | Improvement in locking-burr | |
| US85050A (en) | Improved chair for children | |
| US74966A (en) | David williamson | |
| US80706A (en) | George w | |
| US59250A (en) | Improved fastening for knobs for furniture | |
| US70275A (en) | seymour | |
| US94422A (en) | Improved basket-rest for ladders | |
| US74890A (en) | Charles f | |
| US93632A (en) | Improved bed-bottom | |
| US92671A (en) | Improved stair-rod | |
| US78135A (en) | Albert j | |
| US65253A (en) | Improvement in calipees | |
| US62284A (en) | photo-litho | |
| US85423A (en) | Improvement in hollow augers | |
| USD3146S (en) | Benjamin cbabtreb | |
| US92708A (en) | Robert r | |
| US81739A (en) | Improvement in teasling-machine | |
| US64728A (en) | Herman wolf | |
| USD3047S (en) | Design for a coffin-handle | |
| US92026A (en) | Improved mat and scraper | |
| US85901A (en) | Albert g |