US172830A - Improvement in stairs - Google Patents
Improvement in stairs Download PDFInfo
- Publication number
- US172830A US172830A US172830DA US172830A US 172830 A US172830 A US 172830A US 172830D A US172830D A US 172830DA US 172830 A US172830 A US 172830A
- Authority
- US
- United States
- Prior art keywords
- stairs
- improvement
- floor
- stewart
- weights
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/04—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible
- E04F11/06—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic
- E04F11/062—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic folding
- E04F11/064—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic folding with stringers overlapping when folded
Definitions
- Figure 1 is a perspective view
- Fig. 2 a vertical section.
- A represents the stairs or steps, the upper end of which is hinged to the underside of the second floor.
- cords B B which extend upward and over pulleys in the second floor, and on their other ends are weights D D, of sufficient heft to hold be used, such as are sometimes used on doors, which will wind the cords around them.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Special Chairs (AREA)
- Bathtub Accessories (AREA)
- Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
Description
J. Y. STEWART & me. CONWELL.
STAIR. No.17 Z,83'O. gamma Feb.1,1876
INVENTDRE N-PETERS, PHOTO-LITHOGRAPHER. WASHINGTO D. C.
UNITED STATES PATENT OFFICE;
JAMES Y. STEWART EDWARD Gr. CONWELL OF DOVER, DELAWARE.
IMPROVEMENT IN STAIRS.
Specification forming part of Letters Patent No. 172,830, dated February 1 1876; application filed January 17, 1876.
room-for instance, in a store, where it is.-de-' sirable'to have a flight of stairs to ascend to the floor above, and yet, when fixed or stationary, as they are usually constructed, they may take up much valuable space; and the intention of our invention is to obviate this difficulty, which is accomplished by hinging the stairs to the floor or ceiling next above the store-room, so that when not in use they can be raised up out of the way. V
In the drawing, Figure 1 is a perspective view, and Fig. 2 a vertical section.
A represents the stairs or steps, the upper end of which is hinged to the underside of the second floor.
I Near the lower end of the stairs are attached cords B B, which extend upward and over pulleys in the second floor, and on their other ends are weights D D, of sufficient heft to hold be used, such as are sometimes used on doors, which will wind the cords around them.
' The position of the stairs when required for use is shown in Fig. l and by dotted lines in Fig. 2, and when-they are not needed they can be raised into theopening in the second floor, as shown in Fig. 2, and are held there by the weights D D; or on the lower end'of the steps there may be a spring-bolt, which will hold them up, and attached to which is a cord that will not only serve to withdraw the bolt, but to draw down the stairs when wanted for use. We claim as our invention-- 1 The combination of the stairs A, cords B B, pulleys ,O G, and weights D D, or their equivalent, when constructed and arranged substantially as described.
J. Y. STEWART. EDWD. G. OONWELL.
Witnesses:
G. A. 0. SMITH, A. V. RoBINsoN.
Publications (1)
Publication Number | Publication Date |
---|---|
US172830A true US172830A (en) | 1876-02-01 |
Family
ID=2242237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US172830D Expired - Lifetime US172830A (en) | Improvement in stairs |
Country Status (1)
Country | Link |
---|---|
US (1) | US172830A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2565778A (en) * | 1947-09-25 | 1951-08-28 | Morrison Hackley | Concealed stairway |
US3060884A (en) * | 1961-11-20 | 1962-10-30 | Wood Russell Ernest | Small craft mooring and dockage facility |
US3110048A (en) * | 1960-05-18 | 1963-11-12 | Paul D Bolton | Ramp for airport passengers and freight |
US20210388669A1 (en) * | 2020-06-15 | 2021-12-16 | Brian K. Gates | Escape door assembly for storm shelter |
US11598101B2 (en) * | 2018-12-17 | 2023-03-07 | New Century Buildings L.L.C. | Vehicle service pit |
-
0
- US US172830D patent/US172830A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2565778A (en) * | 1947-09-25 | 1951-08-28 | Morrison Hackley | Concealed stairway |
US3110048A (en) * | 1960-05-18 | 1963-11-12 | Paul D Bolton | Ramp for airport passengers and freight |
US3060884A (en) * | 1961-11-20 | 1962-10-30 | Wood Russell Ernest | Small craft mooring and dockage facility |
US11598101B2 (en) * | 2018-12-17 | 2023-03-07 | New Century Buildings L.L.C. | Vehicle service pit |
US20210388669A1 (en) * | 2020-06-15 | 2021-12-16 | Brian K. Gates | Escape door assembly for storm shelter |
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