US127980A - Improvement in chairs and step-ladders combined - Google Patents
Improvement in chairs and step-ladders combined Download PDFInfo
- Publication number
- US127980A US127980A US127980DA US127980A US 127980 A US127980 A US 127980A US 127980D A US127980D A US 127980DA US 127980 A US127980 A US 127980A
- Authority
- US
- United States
- Prior art keywords
- improvement
- chairs
- parts
- ladders
- combined
- 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
- 210000001847 Jaw Anatomy 0.000 description 2
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C12/00—Step-stools
- A47C12/02—Step-stools requiring conversion between the step and seat functions
Definitions
- the nature of the invention consists in improved locks for holding the parts in the open and closed positions, or in the ladder and chair positions, being a spring-catch controlled by a thumb-piece and a spring-clamp that is selfactin g, as hereinafter more fully described.
- Figurel is a sectional View ofthe chair, and Fig. 2 is a like view of the ladder.
- Fig. 3 is a detail View of the clamp for holding the parts in the closed position, and
- Fig. 4 is a like View of the lock for holding the parts in the unfolded position.
- the 4step G is provided with a spring-clamp, having two jaws, g, Fig. 3; and the round H has a pin or projection, h, with a spear-shaped head that engages with the clamp g, making a friction-clamp, that holds v-the parts sufficiently secure, yet yields readily for the purpose of opening or closing the parts when the foot is placed on one of the side rounds of section B b, and the'other section A a operated by hand.
- the arm G has a concealed pin, f, in its end, that is thrown out by a wire, c, and thumbpiece e, as shown in Fig. 4, to engage with one of the legs of B, as seen in Fig. 2, thus looking the parts in the opened position.
Description
-A. LIESCHE Improvement in Chairs 4and lSteep-Ladders Combin'd.k
N0. 127,980. D Patented June 18,1872.
Wim/155 ,525,1Y l 2W/Wi f PATENT OFFICE.
AUGUST LIESCHE, OF SYRAGUSE, NEW YORK.
IMPROVEMENT IN CHAIRS AND STEP-LADDERS COMBINED.
Specication forming part of Letters Patent No. 127,980, dated June 18, 1872.
Specication describing an Improvement/in a Combined Chair and Step-Ladder, invented by AUGUST LrEsoHE, of Syracuse, in the county of Onondaga and State of New York.
The nature of the invention consists in improved locks for holding the parts in the open and closed positions, or in the ladder and chair positions, being a spring-catch controlled by a thumb-piece and a spring-clamp that is selfactin g, as hereinafter more fully described.
Figurel is a sectional View ofthe chair, and Fig. 2 is a like view of the ladder. Fig. 3 is a detail View of the clamp for holding the parts in the closed position, and Fig. 4 is a like View of the lock for holding the parts in the unfolded position.
For securing the parts in the form of a chair the 4step G is provided with a spring-clamp, having two jaws, g, Fig. 3; and the round H has a pin or projection, h, with a spear-shaped head that engages with the clamp g, making a friction-clamp, that holds v-the parts sufficiently secure, yet yields readily for the purpose of opening or closing the parts when the foot is placed on one of the side rounds of section B b, and the'other section A a operated by hand.
For securing the parts in the ladder posi tion the arm G has a concealed pin, f, in its end, that is thrown out by a wire, c, and thumbpiece e, as shown in Fig. 4, to engage with one of the legs of B, as seen in Fig. 2, thus looking the parts in the opened position.
Having thus described my invention, what I claim is- The fastening devices, composed of the
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US127980A true US127980A (en) | 1872-06-18 |
Family
ID=2197399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US127980D Expired - Lifetime US127980A (en) | Improvement in chairs and step-ladders combined |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US127980A (en) |
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0
- US US127980D patent/US127980A/en not_active Expired - Lifetime
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