US120158A - Improvement in step-ladders - Google Patents
Improvement in step-ladders Download PDFInfo
- Publication number
- US120158A US120158A US120158DA US120158A US 120158 A US120158 A US 120158A US 120158D A US120158D A US 120158DA US 120158 A US120158 A US 120158A
- Authority
- US
- United States
- Prior art keywords
- ladders
- improvement
- huey
- pieces
- strip
- 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
- 210000002832 Shoulder Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052949 galena Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 238000010422 painting Methods 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
- E06C1/38—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
- E06C1/393—Ladders having platforms foldable with the ladder
Definitions
- My invention relates to that class of ladders known as step or fruit-1adders and the nature thereof consists in certain modifications and improvements in the details of the construction of the same, hereinafter described andshown.
- Figure l is a view in perspective, representing the ladder in position ready for use.
- the rear support-s or legs 0 are pivoted to and within the said check pieces by means of screwbolts, and are secured together by means of the cross-pieces D E F.
- the upper cross-piece D is provided with projections 61 which catch against the rear portions of the cheek-pieces and thus hold the legs in position.
- K designates a vertical strip, attached to the top of which is the table L.
- the said strip passes upward through a staple, H, attached to the cross-piece E and an aperture cut in the platform 0, and is held in any desired position by means of the spring-tappet P, which catches automatically in the notches R cut in the said strip.
Landscapes
- Portable Nailing Machines And Staplers (AREA)
Description
@WILLlAM HUEY.
Improvement in Step Ladders. No. 120,158 Patented Oct.2 4,1871.
Alli-0m UNITED STATES PATENT CFFICE.
WILLIAM HUEY, OF GALENA, MARYLAND.
IMPROVEMENT IN STEP-LADDERS.
Specification forming part of Letters Patent No. 120,158, dated October 24, 1871.
To all whom it may concern:
Be it known that I, WILLIAM HUEY, of Galena, in the county of Kent and in the State of Maryland, have invented an Improved Step-Ladder; and do hereby declare that the following description, taken in connection with the accompanying drawing, hereinafter referred to, forms a full and exact specification of the same, wherein I have set forth thcnature and principles ofmy said improvement, by which my invention may be distin guished from others of a similar class, together with such parts as I claim and desire to secure by Letters Patent.
My invention relates to that class of ladders known as step or fruit-1adders and the nature thereof consists in certain modifications and improvements in the details of the construction of the same, hereinafter described andshown.
In the accompanying drawing, which illustrates my invention and forms a part of the specification thereof, Figure l is a view in perspective, representing the ladder in position ready for use.
The rear support-s or legs 0 are pivoted to and within the said check pieces by means of screwbolts, and are secured together by means of the cross-pieces D E F. The upper cross-piece D is provided with projections 61 which catch against the rear portions of the cheek-pieces and thus hold the legs in position. In order to afl'ord an additional stay to the rear supports on the inner sides of the cheek-pieces are cut angular notches, against the shoulders of which the said supports rest. K designates a vertical strip, attached to the top of which is the table L. The said strip passes upward through a staple, H, attached to the cross-piece E and an aperture cut in the platform 0, and is held in any desired position by means of the spring-tappet P, which catches automatically in the notches R cut in the said strip.
The operation and advantages of the adjustable table thus formed in gathering firuit, painting, 850., will be obvious without further description.
Having described the c nstruction and operation of the various parts of my invention, I claim- The combination of strip K, table L crosspiece E provided with the staple H, platform 0, and spring-tappet P, when operating together, as and for the purposes described.
In testimony that I claim the foregoing I have hereunto set my hand and seal this 23d day of June, 1871.
WILLIAM HUEY. [L. s.] Witnesses:
O. S. WHITMAN,
H. A. DANIELS. (30)
Publications (1)
Publication Number | Publication Date |
---|---|
US120158A true US120158A (en) | 1871-10-24 |
Family
ID=2189605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US120158D Expired - Lifetime US120158A (en) | Improvement in step-ladders |
Country Status (1)
Country | Link |
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US (1) | US120158A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4011448A1 (en) * | 1990-04-09 | 1991-10-10 | Siemens Ag | Liquid viscosity measurement arrangement for oil - contains throughflow vessel with temp. controlled heating, light barriers and aperture control lifting magnet |
-
0
- US US120158D patent/US120158A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4011448A1 (en) * | 1990-04-09 | 1991-10-10 | Siemens Ag | Liquid viscosity measurement arrangement for oil - contains throughflow vessel with temp. controlled heating, light barriers and aperture control lifting magnet |
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