US1615759A - Folding ladder - Google Patents

Folding ladder Download PDF

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Publication number
US1615759A
US1615759A US75585A US7558525A US1615759A US 1615759 A US1615759 A US 1615759A US 75585 A US75585 A US 75585A US 7558525 A US7558525 A US 7558525A US 1615759 A US1615759 A US 1615759A
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Prior art keywords
rope
disc
discs
ladder
folding ladder
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Expired - Lifetime
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US75585A
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Hausle Jacob
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Individual
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Individual
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/52—Ladders in general with non-rigid longitudinal members
    • E06C1/56—Rope or chain ladders

Definitions

  • This invention relates to improvements in flexible ladders and has for its object to reumble the weight and increase the strength and stability of the ladder.
  • Folding, flexible ladders of this kind generally comprise two ropes of wire or hemp or the like immovably secured to suitably spaced discs, rungs of steel or the like being fixed to the latter when the ladder is fitted up for use and the said discs holding the ropes and rungs some distance away from the wall or the like.
  • the discs are immovably secured to the ropes by passing the latter through grooves or guides provided in the discs in the transverse direction thereof.
  • the rope is wound once or several times round the sleeve of the disc fixed to a tubular member, so that the said rope is immovably retained on the tubular member by means of the disc.
  • the discs are made oi a rigid, but pliable, material, such as aluminum or the like, so that during the depression of the guide-straps onto the rope the material is pressed into the depressions ot the rope.
  • the discs are stiffened by ribs or grooves extending vertically with respect to the direction of the rope.
  • discs may be of any desired polygonal shape and material.
  • FIG. 1 and 2 show in sectional side view and front view respectively one embodiment of the present invention taken on the lines 1--1 and 22 of Figures 2 and 1, respec tively.
  • the reference character 1 designates a rope made of wire, hemp or the like
  • 2 designates disc provided with guides or eyes 3
  • t represents a steel tube enclosed in a sleeve 5 of wood or the like and forming the rung.
  • the rope is drawn through eyes formed by cutting and stamping the parts 3 out of the metal disc 2 and the rope is wound round the boss 6 of the disc 2 in such a manner, that two or more loops 7 are formed, and now the rope is again passed through the eyes. It is obvious, that the middle plane of the loops exactly passes through the axis of the rope.
  • the boss of the disc 2 terminates in a flared end 8, in order to prevent any lateral movement of the loops, and the tube 4 is turnished with a flared end 9, in order to increase the strength and stability of the entire combination.
  • a disc In a flexible ladder, a disc, said disc being provided with a centrally disposed tubular boss and a plurality of eyes disposed on a diametrical line of said disc, and a flexible member wound around said tubular boss and passing through said eyes.

Description

Jan. 25, 1927. 1,615,759
J. HAUSLE FOLDING LADDER Filed Dec. 15, 1925 INVENTOR.
gfzcob EJ221616 BY 771% A TTORNEYS.
Patented Jan. 25, 1927.
PATENT OFFICE.
UNITED STATES JACOB HKUSLE, 0F FELDKIRCH, AUSTRIA.
FOLDING Application filed December 15, 1925, Serial No. 75,585, and. in Austria August 18, 1924.
This invention relates to improvements in flexible ladders and has for its object to re duce the weight and increase the strength and stability of the ladder.
Folding, flexible ladders of this kind generally comprise two ropes of wire or hemp or the like immovably secured to suitably spaced discs, rungs of steel or the like being fixed to the latter when the ladder is fitted up for use and the said discs holding the ropes and rungs some distance away from the wall or the like. The discs are immovably secured to the ropes by passing the latter through grooves or guides provided in the discs in the transverse direction thereof.
According to the invention the rope is wound once or several times round the sleeve of the disc fixed to a tubular member, so that the said rope is immovably retained on the tubular member by means of the disc.
However the rope is wound round the sleeve of the disc in such a manner, that the direction in which the pull is exerted passes exactly through the axis of the rope, so that neither the disc nor the rope is subjected to a lateral force, whereby the security of the ladder is considerably increased.
In order to prevent the rope from slipping in the guides or grooves, the discs are made oi a rigid, but pliable, material, such as aluminum or the like, so that during the depression of the guide-straps onto the rope the material is pressed into the depressions ot the rope. The discs are stiffened by ribs or grooves extending vertically with respect to the direction of the rope.
Of course the discs may be of any desired polygonal shape and material.
A preferred embodiment of carrying out the present invention is illustrated by way in of example on the accompanying sheet of drawings in whicl Figs. 1 and 2 show in sectional side view and front view respectively one embodiment of the present invention taken on the lines 1--1 and 22 of Figures 2 and 1, respec tively.
In the embodiment shown in Figs. 1 and 2, the reference character 1 designates a rope made of wire, hemp or the like, 2 designates disc provided with guides or eyes 3, and t represents a steel tube enclosed in a sleeve 5 of wood or the like and forming the rung. The rope is drawn through eyes formed by cutting and stamping the parts 3 out of the metal disc 2 and the rope is wound round the boss 6 of the disc 2 in such a manner, that two or more loops 7 are formed, and now the rope is again passed through the eyes. It is obvious, that the middle plane of the loops exactly passes through the axis of the rope.
The boss of the disc 2 terminates in a flared end 8, in order to prevent any lateral movement of the loops, and the tube 4 is turnished with a flared end 9, in order to increase the strength and stability of the entire combination.
I claim In a flexible ladder, a disc, said disc being provided with a centrally disposed tubular boss and a plurality of eyes disposed on a diametrical line of said disc, and a flexible member wound around said tubular boss and passing through said eyes.
In testimony whereof I aflix my signature.
' JACOB HiiUSLE.
US75585A 1924-08-18 1925-12-15 Folding ladder Expired - Lifetime US1615759A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT1615759X 1924-08-18

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US1615759A true US1615759A (en) 1927-01-25

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