US198947A - Improvement in ladder-scaffolds - Google Patents

Improvement in ladder-scaffolds Download PDF

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Publication number
US198947A
US198947A US198947DA US198947A US 198947 A US198947 A US 198947A US 198947D A US198947D A US 198947DA US 198947 A US198947 A US 198947A
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Prior art keywords
ladder
scaffolds
leaf
improvement
jacks
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/16—Platforms on, or for use on, ladders, e.g. liftable or lowerable platforms

Definitions

  • VILLIAM KYLE OF OLEVEIJAND, OHIO.
  • a A are common ladders, which form the supports for the jacks and These jacks consist of a board, B, to which is hinged a leaf, O. Said leaf is supported at its outer edge by a brace' or arm, D, which is also hinged to the under side of the leaf, and passes down through a slot near the lower end of the board B.
  • the lever is provided With a series of holes, dd, for inserting a pin, dz, which retains the leaf at any given angle.
  • hooks E E On the rear side of the board B are placed hooks E E, for Ahanging the device onto the rounds of the ladders.
  • These hooks may be made adjustable by being put through slots in .against a building at a proper inclination and at proper distances apart, the before-described jacks may be carried up and hung where required, the leaf adjusted to the required angle to make it level, and then a board or plank placed on the said jacks, and a safe, simple, and convenient scafolding is formed.
  • the jacks maybe placed on the inside of the ladders, or the side of the ladders toward the building, as seen at F, Fig. 1, again bringing the scaifolding within easy reach ⁇ for work on the sides of the building.

Description

scaffolding.
UNITED STATES PATENT OFFICE;
VILLIAM KYLE, OF OLEVEIJAND, OHIO.
ilMPROVEMENT IN LADDER-SCAFFOLDS.
Specifioation forming part of Letters Patent No. 198,947, dated J anuary S, 1878; application filed November 6, 1877.
` To all 'whom it may concern:
Be'it known that I, WILLIAM KYLE, of Cleveland, in the county of Guyahoga and State of Ohio, have invented a new and useful improvement in `jacks to be used in connection with ladders in forming scaftolding,
' which im provement is fully set forth in the fol- `Venient scaffolding may be constructed for painters? or similar use; and consists of a jack so constructed that it may be hung on any of the rounds of the ladder and adjusted for holding boards for a platform, or upon which a Workman can stand while working upon the side ofbuildings.
In the drawin g, A A are common ladders, which form the supports for the jacks and These jacks consist of a board, B, to which is hinged a leaf, O. Said leaf is supported at its outer edge by a brace' or arm, D, which is also hinged to the under side of the leaf, and passes down through a slot near the lower end of the board B. For adjustin g the leaf at the proper angle with relation to the board B, the lever is provided With a series of holes, dd, for inserting a pin, dz, which retains the leaf at any given angle.
On the rear side of the board B are placed hooks E E, for Ahanging the device onto the rounds of the ladders. These hooks may be made adjustable by being put through slots in .against a building at a proper inclination and at proper distances apart, the before-described jacks may be carried up and hung where required, the leaf adjusted to the required angle to make it level, and then a board or plank placed on the said jacks, and a safe, simple, and convenient scafolding is formed.
When the sc'affolding becomes too distant from the building, as the Work progresses downward, the jacks maybe placed on the inside of the ladders, or the side of the ladders toward the building, as seen at F, Fig. 1, again bringing the scaifolding within easy reach` for work on the sides of the building.
Having described my invention, I claim- The device herein described, consisting of the board B, provided With hooks E E and slots for adjus-tment of the same, and of the brace, hinged leaf O, and hinged brace D, having holes d and pin (12, constructed and arranged to operate in combination with yladders A, substantially as and for the purpose set forth.
WILLIAM KYLE.
Witnesses:`
GEO. W. TIBBITTs, F. W. OADWELL.
US198947D Improvement in ladder-scaffolds Expired - Lifetime US198947A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120024628A1 (en) * 2007-03-21 2012-02-02 Svehlek John R Ladder Security Bracket and Safety System
US8201661B1 (en) 2010-03-05 2012-06-19 O'connell Sr Denis J Platform for extension ladder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120024628A1 (en) * 2007-03-21 2012-02-02 Svehlek John R Ladder Security Bracket and Safety System
US8776948B2 (en) * 2007-03-21 2014-07-15 John R. Svehlek Ladder security bracket and safety system
US8201661B1 (en) 2010-03-05 2012-06-19 O'connell Sr Denis J Platform for extension ladder

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