US131798A - Improvement in hinges for step-ladders - Google Patents
Improvement in hinges for step-ladders Download PDFInfo
- Publication number
- US131798A US131798A US131798DA US131798A US 131798 A US131798 A US 131798A US 131798D A US131798D A US 131798DA US 131798 A US131798 A US 131798A
- Authority
- US
- United States
- Prior art keywords
- ladders
- hinges
- improvement
- pivot
- hinge
- 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
- 239000007787 solid Substances 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910001296 Malleable iron Inorganic materials 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/16—Arrangement of linkage connections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32606—Pivoted
Definitions
- WNEEEE ⁇ NVENTM- @m I WZ M UNITED STATES PATENT OFFICE.
- the present invention relates to an improved two-part hinge, to beused in connection with a step-ladder patented by me June 8, 1869; but it may be used in connection with other step-ladders, or for other purposes; and its nature consists in forming the socket for the leg in two parts, also forming eye-pivot by elongating the said parts and, holding them together by a rivet cast solid to one part and made to project through the other, as the whole isdescribed and shown.
- Figure 1 is a side view of my improved hinge; Figs. 2 and 3, front and back views; and Fig. 4, a broken elevation of r the laddervbracket to which the hinge is attached.
- a B represent the two parts of the hinge
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Ladders (AREA)
Description
r I c. a. UDELLA. lmprovement in Hinges for Step-Ladders.
I V P atented'Oct. i, 1872.
WNEEEE: \NVENTM- @m I WZ M UNITED STATES PATENT OFFICE.
CALVIN Gr. UDELL,OF CHICAGO, ILLINOIS.
IMPROVEMENT IN HINGES FOR STEP-LADDERS.
Specification forming part of Letters Patent No 131,798, dated October 1, 1872.-
To all whom it may concern:
Be it known that I, CALVIN G. UDELL, of Chicago, in the county of Cook and State of Illinois, have in vented an Improved Hinge for Step-Ladders, of which thefollowingis a specification:
The present invention relates to an improved two-part hinge, to beused in connection with a step-ladder patented by me June 8, 1869; but it may be used in connection with other step-ladders, or for other purposes; and its nature consists in forming the socket for the leg in two parts, also forming eye-pivot by elongating the said parts and, holding them together by a rivet cast solid to one part and made to project through the other, as the whole isdescribed and shown.
In the drawing, Figure 1 is a side view of my improved hinge; Figs. 2 and 3, front and back views; and Fig. 4, a broken elevation of r the laddervbracket to which the hinge is attached.
A B represent the two parts of the hinge,
' which are usually cast of malleable iron, and -they are provided with opposing recesses suitableito receive the ends of the legs F, the
posit-ion of which in the sockets is shown by dotted lines. The projections above the parts A B to support a pivot, G, are shown at N N, and the rivet is cast solid to one of the pieces N and headed to the. other, as shown at (J; and the nib or lug for holding the pivot G in place is shown at I, and is cast solid to G. L represents a part of the bracket which supports the top step in the patent referred to. An eye, J, is made through the bracket to receive the pivot, and the eye is enlarged at K to receive the nib I, Fig. 1. The leg F, being turned partially around after it is attached to the bracket, is held in place by the said nib. This latter arrangement, however, is common, and is not claimed. A socket thus formed'for the leg F is found to be the cheapest means now known for a sure fastening the leg, being riveted to the plates A B at D, is firmly held in place.
I claim and desire to secure by Letters Pat- A two'part socket-11in ge, A B, provided with a pivot, G I, and rivet O, as and for the purpose set forth.
CALVIN' e. UDELL.
' Witnesses:
Gno. L. CHAPIN, EDWIN G. McGUiRE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US131798A true US131798A (en) | 1872-10-01 |
Family
ID=2201214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US131798D Expired - Lifetime US131798A (en) | Improvement in hinges for step-ladders |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US131798A (en) |
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0
- US US131798D patent/US131798A/en not_active Expired - Lifetime
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