US229552A - Extension step-ladder - Google Patents

Extension step-ladder Download PDF

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Publication number
US229552A
US229552A US229552DA US229552A US 229552 A US229552 A US 229552A US 229552D A US229552D A US 229552DA US 229552 A US229552 A US 229552A
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Prior art keywords
ladder
sections
extension step
fruit
section
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    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C1/00Ladders in general
    • E06C1/02Ladders in general with rigid longitudinal member or members
    • E06C1/32Ladders with a strut which is formed as a ladder and can be secured in line with the ladder
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C1/00Ladders in general
    • E06C1/02Ladders in general with rigid longitudinal member or members
    • E06C1/38Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/39Ladders having platforms; Ladders changeable into platforms
    • E06C1/393Ladders having platforms foldable with the ladder

Definitions

  • My invention relates to a combined step or fruit ladder so hinged in the center that it can be readily converted into an extension-ladder, as will be hereinafter more fully explained.
  • Figure l is a perspective view of my invention.
  • Fig. 2 is a view showing the ladder extended.
  • Figs. 3 and 4 are views showing the fastening of the joints.
  • My improved ladder is divided into two equal sections, A and B, and fastened together by two malleable hinges.
  • Section A I usually make tapering-that is, wider at the baseand with ilat steps for greater convenience when my invention is used as a step-ladder.
  • Said section is properly braced by one or more cross-pieces, R.
  • Section-B is furnished with rounds.
  • the hinges C C are castvwith turnedup ends let into and either screwed or bolted to the sections A and B, as shown in Figs. l and 3.
  • section D is a platform, hinged in any suitable manner to section B, so as to rest on a round, F, placed at the upper end of section A.
  • E is a hook, fastening the two sections of the step or fruit ladder together to keep them from spreading when in use; and J J are hooks engaging pins or staples K K, for holding the ladder extended, as shown in Fig. 2.
  • the hinges C are fastened on the under side of the ladder, and by means of the bentup ends entering or holding in mortises or gains in the sections are adequate to sustain the strain which necessarily comes upon the hinge when the sections abut end to end, as shown, the hooks J being merely used to keep the ladder extended while it is being shifted from one position to another.
  • My invention being invaluable for fruit-picking, tree-trimming, cleaning oflarge windows, 821e., it can as handily be used for any purposes for which any ordinary ladder may be.
  • My invention placed beside a fruit-tree two pickers can stand upon opposite sides of the ladder and gather the fruit handily and easily, untrammeled by a basket or a pail, which may rest upon the platform.

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  • Ladders (AREA)

Description

UNITED STATES PATENT OFFICE.
HENRY E. PHELPS, OF MARSHALL, MICHIGAN.
EXTENSION STEP-LADDER.
SPECIFICATION forming part of Letters Patent No. 229,552, dated July 6, 1880.
Application filed July 22,1878.
To all 'whom it may concern:
Be it known that I, HENRY E. PHELPs, of Marshall, in the county of Calhoun and State of Michigan, have invented certain new and useful Improvementsin Extension Fruit and Step Ladders; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in Jche art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.
My invention relates to a combined step or fruit ladder so hinged in the center that it can be readily converted into an extension-ladder, as will be hereinafter more fully explained.
In the drawings, Figure l is a perspective view of my invention. Fig. 2 is a view showing the ladder extended. Figs. 3 and 4 are views showing the fastening of the joints.
Similar letters of reference indicate like parts in the several ligures.-
My improved ladder is divided into two equal sections, A and B, and fastened together by two malleable hinges. Section A, I usually make tapering-that is, wider at the baseand with ilat steps for greater convenience when my invention is used as a step-ladder. Said section is properly braced by one or more cross-pieces, R. Section-B is furnished with rounds. The hinges C C are castvwith turnedup ends let into and either screwed or bolted to the sections A and B, as shown in Figs. l and 3.
D is a platform, hinged in any suitable manner to section B, so as to rest on a round, F, placed at the upper end of section A.
E is a hook, fastening the two sections of the step or fruit ladder together to keep them from spreading when in use; and J J are hooks engaging pins or staples K K, for holding the ladder extended, as shown in Fig. 2. The hinges C are fastened on the under side of the ladder, and by means of the bentup ends entering or holding in mortises or gains in the sections are adequate to sustain the strain which necessarily comes upon the hinge when the sections abut end to end, as shown, the hooks J being merely used to keep the ladder extended while it is being shifted from one position to another.
My invention being invaluable for fruit-picking, tree-trimming, cleaning oflarge windows, 821e., it can as handily be used for any purposes for which any ordinary ladder may be.
My invention placed beside a fruit-tree, two pickers can stand upon opposite sides of the ladder and gather the fruit handily and easily, untrammeled by a basket or a pail, which may rest upon the platform.
I am aware that ladders hinged in two sections, With their ends abutting and held by a fastening device, are not new, and such I do not claim, broadly; but
What I do claim is- In a folding ladder whose sections abut end to end, the combination, with said sections, of hinges C, applied thereto, as shown, and having bent-up ends entering and holding in mortises or gains in the said sections, all as and for the purposes set forth.
In testimony that I claim the foregoing as my own I afx my signature in presence of two witnesses.
HENRY E. PHELPS.
Witnesses:
OTTO LEE J oHNsoN, GEO. A. J oHNsoN.
US229552D Extension step-ladder Expired - Lifetime US229552A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4483415A (en) * 1981-05-18 1984-11-20 Disston Horace C Folding stepladder
US4520896A (en) * 1981-05-18 1985-06-04 Disston Horace C Foldable ladder
US20180252037A1 (en) * 2017-03-03 2018-09-06 New-Tec Integration (Xiamen) Co., Ltd. Deformable herringbone ladder with straight ladder function
US20190136625A1 (en) * 2017-11-07 2019-05-09 Wan Yu Chen Mechanical structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4483415A (en) * 1981-05-18 1984-11-20 Disston Horace C Folding stepladder
US4520896A (en) * 1981-05-18 1985-06-04 Disston Horace C Foldable ladder
US20180252037A1 (en) * 2017-03-03 2018-09-06 New-Tec Integration (Xiamen) Co., Ltd. Deformable herringbone ladder with straight ladder function
US10718160B2 (en) * 2017-03-03 2020-07-21 New-Tec Integration (Xiamen) Co., Ltd. Switchable ladder
US20190136625A1 (en) * 2017-11-07 2019-05-09 Wan Yu Chen Mechanical structure

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