US132938A - Improvement in the construction of step-ladders - Google Patents
Improvement in the construction of step-ladders Download PDFInfo
- Publication number
- US132938A US132938A US132938DA US132938A US 132938 A US132938 A US 132938A US 132938D A US132938D A US 132938DA US 132938 A US132938 A US 132938A
- Authority
- US
- United States
- Prior art keywords
- ladders
- improvement
- construction
- leg
- bracket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010276 construction Methods 0.000 title description 4
- 239000007787 solid Substances 0.000 description 8
- 238000005266 casting Methods 0.000 description 2
Images
Classifications
-
- 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
- E06C1/14—Ladders capable of standing by themselves
- E06C1/16—Ladders capable of standing by themselves with hinged struts which rest on the ground
- E06C1/18—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as ladders
Definitions
- the presentinvention relates to an improved bracket to be used in combination with the stiles, top step, and bracing-frame of a stepladder, but more especially the step-ladder shown in the patent granted to me June 8, 1869.
- Its nature consists in casting solid to the bracket a projecting lug, which supports the spindle of one leg of the bracing-frame, and which is supported by a curved cap cast solid to the lug and to the bracket, the several parts being cast in a single piece to perform the functions hereinafter named.
- Figure 1 is an elevation of my improved bracket.
- Fig. 2 is an inside elevtation of the same.
- Fig. 3 is a top ,view there- 0 A represents the bracket proper,-which is provided with holes 0 for fastening it to the stiles of a ladder in the usual manner, and with lugs and holes G G to fasten it to the top step K of the ladder, as shown in Fig. 3.
- 13 represents a projecting lug, which is cast solid to the bracket A by means of a cap or housing, J, its support.
- the lug B has cast solid to it a spindle or pivot, F, which passes through a hole in the leg I) of the bracingframe and holds it in position when a nut or washer is put on the end of the spindle, the projection of the part J being equal to the thickness of the leg of the bracing-frame.
- the function of the lug and housing, in addition to supporting the spindle F, is to prevent the end of the leg of the bracing-frame from splitting.
- the brackctcastin g A having the housing J, spindle F, and angular stops E E for receiving and protecting the leg D, substantially in the manner specified.
Landscapes
- Ladders (AREA)
Description
C. G. UDELL.
Improvement in Construction of Step-Ladders.
No. 132,938, Patented Nov.12,i872h %/a my A M. PHUTO'LIYHOGHAPH/C C0. NIMSBORNES PRUGESS.)
UNITED STATES-- CALVIN G. UDELL, OF CHICAGO, ILLINOIS.
IMPROVEMENT IN THE CONSTRUCTION OF STEP-LADDERS.
Specification forming part of Letters Patent No. 132,938, dated November 13, 1872.
To all whom it may concern:
Be it known that I, CALVIN G. UDELL, of Chicago, county of Cook, and State of Illinois, have invented an Improvementin Brackets for Ladders, of which the following is a specification:
The presentinvention relates to an improved bracket to be used in combination with the stiles, top step, and bracing-frame of a stepladder, but more especially the step-ladder shown in the patent granted to me June 8, 1869. Its nature consists in casting solid to the bracket a projecting lug, which supports the spindle of one leg of the bracing-frame, and which is supported by a curved cap cast solid to the lug and to the bracket, the several parts being cast in a single piece to perform the functions hereinafter named.
In the drawing, Figure 1 is an elevation of my improved bracket. Fig. 2 is an inside elevtation of the same. Fig. 3 is a top ,view there- 0 A represents the bracket proper,-which is provided with holes 0 for fastening it to the stiles of a ladder in the usual manner, and with lugs and holes G G to fasten it to the top step K of the ladder, as shown in Fig. 3. 13 represents a projecting lug, which is cast solid to the bracket A by means of a cap or housing, J, its support. The lug B has cast solid to it a spindle or pivot, F, which passes through a hole in the leg I) of the bracingframe and holds it in position when a nut or washer is put on the end of the spindle, the projection of the part J being equal to the thickness of the leg of the bracing-frame. The function of the lug and housing, in addition to supporting the spindle F, is to prevent the end of the leg of the bracing-frame from splitting. This is accomplished by means of the angles E E, Fig; 2, acting as stops when'the leg D is swung to a certain distance in either direction; therefore the end of the leg requires no banding or riveting, and consequently a ladder can be made at less cost, while at the same time the joint is effectually housed in, so that nothing can catch against it, and it gives a good appearance and is strong.
Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-
The brackctcastin g A, having the housing J, spindle F, and angular stops E E for receiving and protecting the leg D, substantially in the manner specified.
CALVIN G. UDELL.
WVitnesses:
G. L. UHAPIN, E. J. CHAPIN.
CFFICE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US132938A true US132938A (en) | 1872-11-12 |
Family
ID=2202355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US132938D Expired - Lifetime US132938A (en) | Improvement in the construction of step-ladders |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US132938A (en) |
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0
- US US132938D patent/US132938A/en not_active Expired - Lifetime
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