US94423A - William e - Google Patents
William e Download PDFInfo
- Publication number
- US94423A US94423A US94423DA US94423A US 94423 A US94423 A US 94423A US 94423D A US94423D A US 94423DA US 94423 A US94423 A US 94423A
- Authority
- US
- United States
- Prior art keywords
- william
- tongue
- slide
- groove
- ladder
- 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
- 210000000078 claw Anatomy 0.000 description 1
- 230000007547 defect Effects 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
Definitions
- This invention relates to the class known as step, and extension-Immers, and is particularly designed as au ⁇ im1n'ovement on that patented to l Charles Croley,
- My improvement consists in a form of slide. or clip
- Figui-Q1 is a perspective view of myimproved slide in posit-ion on the ladder.
- Figure 2 is a transverse section thereof.
- FIG. 3 shows one of my slides detached.
- a and B are portions of the two members of astep and extension-ladder.
- My slide C is pivoted at c to the portion B, as in Croleys, but diii'ers from his in having no tongue,
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
N. PETERS, PHOTO-LITHOGRAPHER, WASNIHGYONy D C4 iinitm "gte-tw @aient dimite.
WILLIAM E..LUDLOW, OF CINCINNATI, OHIO, ASSIGNORIO HENRY C. METCALFE, OF SAME PLACE.
Lettersv Patent No. 94,423, dated August 31, 1869.
IMPROVE!) STEP AND EXTENSIQN-LADDER The Schedule referred to in these Letters Patent and making part of the lame.
v- P'v- Tu 'lhom it 'may concernr Be it known that I, WILLIAM E. LUDLOW, of Cincinnati, Hamiltoncounty, Ohio, have invented a new 'and useful Improvement in Step and Extension-Ladders; and I hereby declare the following to be a full,
clear, and exact description thereof, reference being4 had to the accompanying dra-wings, making part of this speciiicatioli.
This invention relates to the class known as step, and extension-Immers, and is particularly designed as au`im1n'ovement on that patented to l Charles Croley,
of Dayton, Ohio, on 'the 13th day of August, 1867.
My improvement consists in a form of slide. or clip,
which, while of cheaper application, is free from the liability to bind and getfout of place, to which Cro-V ]eys slide is subject.
Figui-Q1 is a perspective view of myimproved slide in posit-ion on the ladder.
Figure 2 is a transverse section thereof.
Figure 3 shows one of my slides detached.
A and B are portions of the two members of astep and extension-ladder.
My slide C is pivoted at c to the portion B, as in Croleys, but diii'ers from his in having no tongue,
nor any groove in the member A to receive the same; which tongue and groove, beside their expense, are objectionable from their liability to bind and get out of order, especially in out-door use, owing to the expansionand shrinkage of the wood-work. It is found that if the fit between the tongue aud groove is madey sufciently free to work easily in all weathers, the ends of the tongue will at times lide on and destroy the sides of the groove-a defect that rapidly increases with use.
Instead of Croleys tongue and groove, I simply prolong my slide a considerable distance up and down, and furnish it wit-h four claws or lips, I), which embrace the edges of the member A.
I claim herein as new, and of my invention- The parts C c D, composing a slidingjoint fora step and extension-ladder, as set forth.
In testimony of which invention, I hereunto set my hand.
WILLIAM E. LUDLOW.
Witnesses:
GEO. H. KMGHT, JAMES H. LAYMAN.
Publications (1)
Publication Number | Publication Date |
---|---|
US94423A true US94423A (en) | 1869-08-31 |
Family
ID=2163900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US94423D Expired - Lifetime US94423A (en) | William e |
Country Status (1)
Country | Link |
---|---|
US (1) | US94423A (en) |
-
0
- US US94423D patent/US94423A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US94423A (en) | William e | |
US98186A (en) | Improvement in railway-rail chairs | |
US67193A (en) | David b | |
US55978A (en) | Improvement in curtain-fixtures | |
USD3047S (en) | Design for a coffin-handle | |
US100118A (en) | Improved blind-slat | |
US91579A (en) | Improved slide for extension-tables | |
USD16779S (en) | Design for a label | |
US1201617A (en) | Straight-edge. | |
USD3199S (en) | Thomas dolan | |
US56267A (en) | Improvement in window-blinds | |
US66576A (en) | Improvement in lamp-shades | |
USD2805S (en) | Temporary notice | |
USD3141S (en) | Design for a bottle | |
US81881A (en) | Improved hot-bed sash and frame | |
US103257A (en) | Improved clothes-drier | |
USD3074S (en) | Design for a show-oase frame | |
US79520A (en) | Sachusetts | |
USD3206S (en) | Design for a stove | |
USD2901S (en) | Henry g | |
USD3299S (en) | Design for a show-case | |
USD3022S (en) | brocksiepeb | |
USD2879S (en) | Henry g | |
USD2892S (en) | Henry g | |
USD2872S (en) | Design for a oaepet-pattern |