US757616A - Step-ladder. - Google Patents

Step-ladder. Download PDF

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Publication number
US757616A
US757616A US17253303A US1903172533A US757616A US 757616 A US757616 A US 757616A US 17253303 A US17253303 A US 17253303A US 1903172533 A US1903172533 A US 1903172533A US 757616 A US757616 A US 757616A
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Prior art keywords
section
ladder
prop
plates
guides
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Expired - Lifetime
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US17253303A
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Philip Herder Jr
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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
    • E06C1/02—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

  • My invention relates to certain new and useful improvements in step-ladders; and it consists in the construction and combination of the parts, as will be hereinafter set forth and specifically claimed.
  • the object of this invention is to provide a step-ladder in which the step-section and propsection are so connected that the parts may be positioned to provide an extension-ladder, such result being accomplished by connecting the parts so that the prop-section may he slid through connecting-fixtures when the sections are parallel, thereby permitting" the relative position of the parts to be changed without completely inverting one of the sections, the construction also permitting the prop-section to be adjusted as desired.
  • Figure 1 is a perspective view showing the parts positioned for use as an ordinary step-ladder.
  • Fig. 2 is a side elevation showing the parts arranged as an extension-ladder.
  • Fig. dis a detail perspective view of a bracket-plate, the guide pivoted thereto, and the stop-pin of the prop-section.
  • Fig. 4 is a sectional view, and Figs. 5 and 6 detail views.
  • A refers to the main or step section of the ladder and comprises side pieces a a, steps A, and a platform A all of ordinary construction.
  • the corners of the platform are cut away, as shown at (0 and between the platform and the first step there is pivoted a shelf E.
  • the prop-section B consists of parallel side pieces, which are passed through the guides D, the rungs which connect the side pieces being of equal length, and the upper ends of the side pieces are beveled to engage at the proper angle the edges of the step-section.
  • the side pieces of the prop-section are provided with outward-projecting pins E, which engage the upper edges of the guides and the brackets at points above the pivots which connect the guides and brackets when the prop-section is in its lowest position and parallel with the step-section.
  • the pins E E engage the upper edges of the guides to one side of the pivots, the tendency being to turn or rock the guides so that they will clamp the side bars of the prop-section.
  • the shelf When it is desired to provide an extensionladder, the shelf is turned upward, as shown in Fig. 4:, and the prop-section is then slid upward.
  • the plates are swung to project beyond the platform, and when a rung of the prop-section engages the hooked portions of the plates the two sections of the ladder will be held securely in line with each other.
  • the plates or hooks B When used as an ordinary step-ladder, the plates or hooks B may be used to suspend a bucket or other article therefrom, and when the shelf is turned upward and the plates are turned inward the hooked end of the plates will engage the upper end of the shelf and hold the same from swinging downward.

Description

No. 757,616. PATENTED APR. 19, 1904. P 5311mm, JR STEP LADDER.
APPLIOATIOK I'ILBD SEPT. 9, 1903.
30 MODEL.
W T1VESSES fyffy THE "aims mans w.. Puomuma, wnsm Patented April 19, 1904.
PATENT OFFICE.
PHILIP 'HER ER, Jn, E CLEVELAND, OHIO.
STEP-LADDER.
SPECIFICATION forming part of Letters Patent No. 757,616, dated April 19, 1904.
Application filed September 9 1903. Serial No. 172,533. (No model.)
To alt whom it may concern.-
Be it known that I, PHILIP HERDER, Jr., a
citizen of theUnited States, residing at Cleve-.
land, in county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in StepLadders; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will v a part of this specification.
My invention relates to certain new and useful improvements in step-ladders; and it consists in the construction and combination of the parts, as will be hereinafter set forth and specifically claimed.
The object of this invention is to provide a step-ladder in which the step-section and propsection are so connected that the parts may be positioned to provide an extension-ladder, such result being accomplished by connecting the parts so that the prop-section may he slid through connecting-fixtures when the sections are parallel, thereby permitting" the relative position of the parts to be changed without completely inverting one of the sections, the construction also permitting the prop-section to be adjusted as desired.
In the accompanying drawings, Figure 1 is a perspective view showing the parts positioned for use as an ordinary step-ladder. Fig. 2 is a side elevation showing the parts arranged as an extension-ladder. Fig. dis a detail perspective view of a bracket-plate, the guide pivoted thereto, and the stop-pin of the prop-section. Fig. 4 is a sectional view, and Figs. 5 and 6 detail views.
A refers to the main or step section of the ladder and comprises side pieces a a, steps A, and a platform A all of ordinary construction. The corners of the platform are cut away, as shown at (0 and between the platform and the first step there is pivoted a shelf E. To the under side of the platform, between the side pieces, are pivoted plates E the point of connection and the size of the plates being such that when the plates are turned on their pivots the ends, which are shaped to form hooks, will be positioned beand extending over a part of the inner sides of the side pieces of the prop-section.
The prop-section B consists of parallel side pieces, which are passed through the guides D, the rungs which connect the side pieces being of equal length, and the upper ends of the side pieces are beveled to engage at the proper angle the edges of the step-section. The side pieces of the prop-section are provided with outward-projecting pins E, which engage the upper edges of the guides and the brackets at points above the pivots which connect the guides and brackets when the prop-section is in its lowest position and parallel with the step-section. When the parts are positioned for use as a step-ladder, the pins E E engage the upper edges of the guides to one side of the pivots, the tendency being to turn or rock the guides so that they will clamp the side bars of the prop-section.
When it is desired to provide an extensionladder, the shelf is turned upward, as shown in Fig. 4:, and the prop-section is then slid upward. The plates are swung to project beyond the platform, and when a rung of the prop-section engages the hooked portions of the plates the two sections of the ladder will be held securely in line with each other.
When used as an ordinary step-ladder, the plates or hooks B may be used to suspend a bucket or other article therefrom, and when the shelf is turned upward and the plates are turned inward the hooked end of the plates will engage the upper end of the shelf and hold the same from swinging downward.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is
In an extension step-ladder, the combination of a step-section having a platform, plates the propsection having the upper ends bevpivoted to the platform and adapted to be eled, substantially as shown and for the pur IO swung beyond the edge thereof, brackets atpose set forth.
tached to the side ieees of the ste section guides the end pd i'tions thereof being in PHILIP HERDER turned said guides being pivoted to the brack- Witnesses:
ets, a prop-section maintained in sliding en- FRANK D. GRAY,
gagement With the guides, the side pieces of E. T. JONES.
US17253303A 1903-09-09 1903-09-09 Step-ladder. Expired - Lifetime US757616A (en)

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US17253303A US757616A (en) 1903-09-09 1903-09-09 Step-ladder.

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US17253303A US757616A (en) 1903-09-09 1903-09-09 Step-ladder.

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US757616A true US757616A (en) 1904-04-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3269485A (en) * 1964-10-21 1966-08-30 Clayton E Larson Convertible ladder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3269485A (en) * 1964-10-21 1966-08-30 Clayton E Larson Convertible ladder

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