US953097A - Ladder. - Google Patents

Ladder. Download PDF

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Publication number
US953097A
US953097A US46045508A US1908460455A US953097A US 953097 A US953097 A US 953097A US 46045508 A US46045508 A US 46045508A US 1908460455 A US1908460455 A US 1908460455A US 953097 A US953097 A US 953097A
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Prior art keywords
ladder
brace
sections
section
lock bolt
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US46045508A
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Albert M D Mengeler
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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

  • This invention relates to ladders and has special reference to a device of this character which is known as a folding ladder.
  • An object of this invention is to provide a' ladder with means whereby the same may be extended or may be employed as a step ladder according to the will of the operator.
  • the invention has for a further object the provision of means which may be applied to ladders of common construction which will render them adjustable so that they may be extended or folded in order to form a propped ladder.
  • the invention has for a still further object the provision of means for accomplishing these results which is simple in construction, is strong and durable and which may be readily applied to ladders of common construction.
  • FIG. 1 is a front elevation of the improved ladder in an extended position
  • Fig. 2 is a side elevation of the brace for the same, the ladder sections being broken away
  • Fig. 3 is a side elevation of the hinge employed in connection with the ladder showing a fragmentary view of the ladder sect-ions
  • Fig. 4 is a side elevation of the ladder in its folded position, showing the position of the brace.
  • Fig. 5 is a detailed and enlarged view of the hinge member employed in connection with the ladder.
  • 10 and 11 designate ladder sections which are of common formation and which are reinforced by a plurality of transverse bolts 12.
  • the adjoining extremities of the ladder sections 10 and 11 are secured together by the hinges 13 which are of peculiar construction.
  • the hinges 13 each comprise metallic plates 15 and 16 which are joined together by the pivot member 17 which is rigidly carried upon the plate 16 and extended into a recess portion formed upon the plate 15 and held in such position by a pin 18.
  • the plates 15 and 16 are adapted to be secured upon the rear edges of the ladder sections 10 and 11 and held in such position by bolts 19 which are passed through the same and into the ladder sections 10 and 11 where they are engaged through reinforcing plates 20 which are positioned upon the opposite edges of the ladder sections 10 and 11 and held in such position by nuts 21.
  • a brace 22 is employed which is hingedly disposed upon the side of the section 10 and which is extended longitudinally beyond the end of the section where it is engagcd by a lock bolt 23 carried upon the side of the sect-ion 11.
  • the brace 22 has an intermediately positioned notch S) and a terminal notch and is further held in position by an car 24. carried upon the side of the section 10 at the end thereof for engagement about the brace 22 to prevent the lateral displacement of the same.
  • the device is to be used as a step ladder the lock bolt 23 is operated to release the upper extremity of the brace 22 when the brace is disengaged from the arm 2 1 and swung into a horizontal plane.
  • the upper section 11 is turned downwardly to form the prop for the step section 10 and the brace 22 by means of its notch 9 is brought into engagement with the lock bolt 23 to secure the two sections at the desired angle as shown in Fig. 1.
  • Fig. 4 of the drawings it will be seen that when the device is used as a step ladder, the brace will be held in its proper position by the lock bolt engaging with the intermediate notch or that nearest the pivotal end of the brace, but when the sections of the ladder are adjusted 011 a plane with one another, the lock bolt is adapted to engage with the notch formed in the brace adjacent to the free end thereof, in which position the brace will be on a line with the sections and overlapping the same and cooperating with and being supported in a locked and ri id position by the hooked cars 24:, as clearly shown in Fig. 2, all of which construction forms a perfect and efficient lock and brace and prevents accidental displacement of the parts.
  • a ladder comprising two similar sections, hinges for connecting the adjoining extremities of the ladder a laterally yielding arm or brace having an intermediate and a terminal notch formed from one edge thereof, said arm being'pivotally secured to one section of the ladder and of suflicient length to overlap the other section of the ladder when the two sections are arranged on a straight line or plane with one another, hooked ears carried by each ladder adjacent to the ends thereof, and a lock bolt carried by the opposite section of the ladder for engagement with said notches of the arm, whereby when the sections of the ladder are arranged in a straight line the yielding locking arm will be rigidly held in a longitudinal position with respect to the sections by said hooked ears and lock bolt cooperating with the terminal notch of the arm or brace.

Description

A. M. D. MENGELER.
LADDER.
APPLICATION FILED 00131, 1908.
953,097. Patented Mar. 29, 1910.
2 SHEETSSEEET l.
Yo o Witnwuo ANDREW B GRAHAM c0., FNOYOLWNOORAPNEFS wasmmamn. u. n
A. M. D. MENGELER.
LADDER.
APPLICATION FILED OCT. 31, 1008.
Patented Mar.29, 1910.
2 SHEETB-SHEET 2.
' Witnemm m, 6 V flrmmw UNITED STATES PATENT OFFICE.
ALBERT M. D. MENGELER, 0F ELGIN, ILLINOIS.
LADDER.
Specification of Letters Patent. Patented L1 1, 29, 1910 Application filed October 31, 1908.
Serial No. 460,455.
I '0 all whom it may concern:
Be it known that I, ALBERT M. D. MEN- GELER, a citizen of the United States, residing at Elgin, in the county of Kane and State of Illinois, have invented certain new and useful Improvements in Ladders, of which the following is a specification.
This invention relates to ladders and has special reference to a device of this character which is known as a folding ladder.
An object of this invention is to provide a' ladder with means whereby the same may be extended or may be employed as a step ladder according to the will of the operator.
The invention has for a further object the provision of means which may be applied to ladders of common construction which will render them adjustable so that they may be extended or folded in order to form a propped ladder.
The invention-has for a still further object the provision of means for accomplishing these results which is simple in construction, is strong and durable and which may be readily applied to ladders of common construction.
Other objects and advantages will be apparent from the following description and it will be understood that changes in the specific structure shown and described may be made within the scope of the claim without departing from the spirit of the invention.
In the drawin s forming a portion of this specification, anc in which like numerals of reference indicate similar parts in the several views, Figure 1 is a front elevation of the improved ladder in an extended position, Fig. 2 is a side elevation of the brace for the same, the ladder sections being broken away, Fig. 3 is a side elevation of the hinge employed in connection with the ladder showing a fragmentary view of the ladder sect-ions, Fig. 4 is a side elevation of the ladder in its folded position, showing the position of the brace. Fig. 5 is a detailed and enlarged view of the hinge member employed in connection with the ladder.
Referring to the drawings, 10 and 11 designate ladder sections which are of common formation and which are reinforced by a plurality of transverse bolts 12. The adjoining extremities of the ladder sections 10 and 11 are secured together by the hinges 13 which are of peculiar construction. The hinges 13 each comprise metallic plates 15 and 16 which are joined together by the pivot member 17 which is rigidly carried upon the plate 16 and extended into a recess portion formed upon the plate 15 and held in such position by a pin 18. The plates 15 and 16 are adapted to be secured upon the rear edges of the ladder sections 10 and 11 and held in such position by bolts 19 which are passed through the same and into the ladder sections 10 and 11 where they are engaged through reinforcing plates 20 which are positioned upon the opposite edges of the ladder sections 10 and 11 and held in such position by nuts 21. For the purpose of securing the sections 10 and 11 in p0sition, a brace 22 is employed which is hingedly disposed upon the side of the section 10 and which is extended longitudinally beyond the end of the section where it is engagcd by a lock bolt 23 carried upon the side of the sect-ion 11. The brace 22 has an intermediately positioned notch S) and a terminal notch and is further held in position by an car 24. carried upon the side of the section 10 at the end thereof for engagement about the brace 22 to prevent the lateral displacement of the same.
\Vhen the device is to be used as a step ladder the lock bolt 23 is operated to release the upper extremity of the brace 22 when the brace is disengaged from the arm 2 1 and swung into a horizontal plane. The upper section 11 is turned downwardly to form the prop for the step section 10 and the brace 22 by means of its notch 9 is brought into engagement with the lock bolt 23 to secure the two sections at the desired angle as shown in Fig. 1.
By referring particularly to Fig. 4 of the drawings, it will be seen that when the device is used as a step ladder, the brace will be held in its proper position by the lock bolt engaging with the intermediate notch or that nearest the pivotal end of the brace, but when the sections of the ladder are adjusted 011 a plane with one another, the lock bolt is adapted to engage with the notch formed in the brace adjacent to the free end thereof, in which position the brace will be on a line with the sections and overlapping the same and cooperating with and being supported in a locked and ri id position by the hooked cars 24:, as clearly shown in Fig. 2, all of which construction forms a perfect and efficient lock and brace and prevents accidental displacement of the parts.
What is claimed is A ladder comprising two similar sections, hinges for connecting the adjoining extremities of the ladder a laterally yielding arm or brace having an intermediate and a terminal notch formed from one edge thereof, said arm being'pivotally secured to one section of the ladder and of suflicient length to overlap the other section of the ladder when the two sections are arranged on a straight line or plane with one another, hooked ears carried by each ladder adjacent to the ends thereof, and a lock bolt carried by the opposite section of the ladder for engagement with said notches of the arm, whereby when the sections of the ladder are arranged in a straight line the yielding locking arm will be rigidly held in a longitudinal position with respect to the sections by said hooked ears and lock bolt cooperating with the terminal notch of the arm or brace.
In testimony whereof I aflix my signature, in presence of two witnesses.
ALBERT M. D. MENGELER.
vWitnesses OTTO MENGELER,
AUGUST MENGELER.
US46045508A 1908-10-31 1908-10-31 Ladder. Expired - Lifetime US953097A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014552A (en) * 1959-08-04 1961-12-26 James F Fike Ladder construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014552A (en) * 1959-08-04 1961-12-26 James F Fike Ladder construction

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