US274855A - Step-ladder - Google Patents
Step-ladder Download PDFInfo
- Publication number
- US274855A US274855A US274855DA US274855A US 274855 A US274855 A US 274855A US 274855D A US274855D A US 274855DA US 274855 A US274855 A US 274855A
- Authority
- US
- United States
- Prior art keywords
- ladder
- wheels
- hangers
- shelving
- rail
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 210000003141 Lower Extremity Anatomy 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 230000001174 ascending Effects 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000002459 sustained Effects 0.000 description 2
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
- E06C9/06—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted
- E06C9/08—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with rigid longitudinal members
- E06C9/12—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with rigid longitudinal members laterally displaceable
Definitions
- Thisiinvention relates to step-ladders for stores and warehouses; and it consists of a device for suspending a step-ladder to wheels resents a front elevation of a shelving with my improved step-ladder suspended thereto, and Fig. 2 a transverse section of the same on line a: w in Fig. 1.
- A denotes the counter-shelf
- B the upper shelving, as usually arranged in stores and ware-rooms.
- bars d Upon one of the upper shelves, at, I bolt, at properdistances apart, bars d, the ends of which that project from the front edge of the shelf are hook-shaped, and against thcfrontface of these hook-shaped ends of bars 11,1 rigidly secure by bolts or rivets the rails D,that are preferably flat iron bars butted with their ends to form a continuous single track from one end of the shelving to the other.
- E is the step-ladder, that is composed of side bars, 0, between Which the steps b are framed or otherwise secured.
- the lower bifurcated ends of hangers G embrace the upper ends of side bars, e, of the step-ladder, and are rigidly,
- hangers G are connected therewith by bolts or rivets passed through both prongs of the bifurcated ends of. hangers G and through such side bars, 6.
- the upper portion of hangers G is bent, each to form a long hook, in which a grooved or flanged Wheel, H, is pivoted on a pin, g, that is passed through holes in both sides of the hook ends of such hanger G, and is rigidly secured therein by either screwing or riveting.
- These wheels H ride upon rail D with the book ends of hangers G projecting below the periphery of such wheels, for the purpose that in case one or' both wheels should leave the track from any cause the ladder'will still be suspended by the hanger-hooks that grasp over the rail D.
- the step-ladder E is of a length that its lower extremity reaches to a convenient distance above the floor for a person to step on it, and it is sustained on an inclined position by saddle-plates or brackets I, that are bolted or otherwise secured against the rear edges of the side bars, 6, of ladder E, to lean against and slide on the front edge of the top board, b, of the counter-shelf A.
- saddle-plates or brackets I that are bolted or otherwise secured against the rear edges of the side bars, 6, of ladder E, to lean against and slide on the front edge of the top board, b, of the counter-shelf A.
- the step-ladder is thus very safely suspended, and requiring no stayrods, and not reaching to the floor, it takes up but very little space.
- This ladder is always in readiness for ascending, and the occupant can move himself along easily from one end of the shelving to the other to reach the desired articles without the necessity of descending for the purpose of moving such ladder, it thus being a great accommodation and time and labor saving to the merchant or storekeeper as compared with the heretofore-used common step-ladders, besides its greater safety for the occupant, since it is an utter impossibility for a ladder thus suspended to tip over.
- What I claim is- 1.
- the device herein described of a traveling step-ladder for stores having flanged wheels at its upper end for suspending it to a rail that v is secured to the upper shelving, and with its lower end leaning against the edge of thetop of' the counter-shelving, all. substantially as set forth, to operate as specified.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Description
(NoMode lJ J.F. TREFTZ.
STE]? LADDER. No. 274,855. Patented Mar.27, 1883.
l l i i ZZZ;
n. PETERS. mwumm, Wzshinflon. n, 0
UNITED STATES PATENT ()FFIC J. FREDRICK TREFTZ, OF CHICAGO, ILLINOIS.
STEP-LADDER.
SPECIFICATION forming part of Letters Patent No. 274,855, dated 'March 27, 1883.
.. Application filed January 9, 1883. (No model.)
To all whom it may concern:
Be it known that I, J. FREDRIOK TREFTZ, of Chicago, in the county offOook and State of Illinois, have invented certain new and usefu'l Improvements in Step-Ladders; and 1 do hereby declare that the following is a full,
clear, and exact description thereof, reference being bad to the accompanying drawings,and to the letters of reference marked thereon, which form a part of this specification.
Thisiinvention relates to step-ladders for stores and warehouses; and it consists of a device for suspending a step-ladder to wheels resents a front elevation of a shelving with my improved step-ladder suspended thereto, and Fig. 2 a transverse section of the same on line a: w in Fig. 1.
Corresponding letters in the several figures of the drawings designate like parts.
A denotes the counter-shelf, and B the upper shelving, as usually arranged in stores and ware-rooms. Upon one of the upper shelves, at, I bolt, at properdistances apart, bars d, the ends of which that project from the front edge of the shelf are hook-shaped, and against thcfrontface of these hook-shaped ends of bars 11,1 rigidly secure by bolts or rivets the rails D,that are preferably flat iron bars butted with their ends to form a continuous single track from one end of the shelving to the other.
E is the step-ladder, that is composed of side bars, 0, between Which the steps b are framed or otherwise secured. The lower bifurcated ends of hangers G embrace the upper ends of side bars, e, of the step-ladder, and are rigidly,
connected therewith by bolts or rivets passed through both prongs of the bifurcated ends of. hangers G and through such side bars, 6. The upper portion of hangers G is bent, each to form a long hook, in which a grooved or flanged Wheel, H, is pivoted on a pin, g, that is passed through holes in both sides of the hook ends of such hanger G, and is rigidly secured therein by either screwing or riveting. These wheels H ride upon rail D with the book ends of hangers G projecting below the periphery of such wheels, for the purpose that in case one or' both wheels should leave the track from any cause the ladder'will still be suspended by the hanger-hooks that grasp over the rail D.
The step-ladder E is of a length that its lower extremity reaches to a convenient distance above the floor for a person to step on it, and it is sustained on an inclined position by saddle-plates or brackets I, that are bolted or otherwise secured against the rear edges of the side bars, 6, of ladder E, to lean against and slide on the front edge of the top board, b, of the counter-shelf A. I
As will be noticed, the step-ladder is thus very safely suspended, and requiring no stayrods, and not reaching to the floor, it takes up but very little space. This ladder is always in readiness for ascending, and the occupant can move himself along easily from one end of the shelving to the other to reach the desired articles without the necessity of descending for the purpose of moving such ladder, it thus being a great accommodation and time and labor saving to the merchant or storekeeper as compared with the heretofore-used common step-ladders, besides its greater safety for the occupant, since it is an utter impossibility for a ladder thus suspended to tip over.
What I claim is- 1. The device herein described of a traveling step-ladder for stores, having flanged wheels at its upper end for suspending it to a rail that v is secured to the upper shelving, and with its lower end leaning against the edge of thetop of' the counter-shelving, all. substantially as set forth, to operate as specified.
2. The combination, with the shelving a of a I store, having attached the rail D, of the ladder E, having hangers G, with Wheels H, substantially as and for the purpose set forth.
3. The combination, with the shelvinga of a store, having attached rail D by bars or brackets d, of the ladder E, having hangers G, with Wheels H, substantially as and for the purpose described and shown.
4. The combination, with rail D, secured to In testimony that I claim the foregoing as shelf a by bars or brackets d, of step-ladder my invention I afiix my signature in presence E, having hangers G, with wheels H, that ride of two witnesses.
upon such rail D, and plates or brackets I, that -J. FREDRIOK TREFIZ. 5 slide against the edge of top board, b, of the Witnesses:
counter-shelf, all substantially as set forth, for LOUIS HOLTING,
the purpose specified. ADAM GEO. WHITE.
Publications (1)
Publication Number | Publication Date |
---|---|
US274855A true US274855A (en) | 1883-03-27 |
Family
ID=2344085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US274855D Expired - Lifetime US274855A (en) | Step-ladder |
Country Status (1)
Country | Link |
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US (1) | US274855A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20200362634A1 (en) * | 2019-05-14 | 2020-11-19 | Chia-Ming Liu | Shelf and ladder combination |
-
0
- US US274855D patent/US274855A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20200362634A1 (en) * | 2019-05-14 | 2020-11-19 | Chia-Ming Liu | Shelf and ladder combination |
US11982128B2 (en) * | 2019-05-14 | 2024-05-14 | Chia-Ming Liu | Shelf and ladder combination |
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