US1215827A - Landing-steps. - Google Patents
Landing-steps. Download PDFInfo
- Publication number
- US1215827A US1215827A US13769616A US13769616A US1215827A US 1215827 A US1215827 A US 1215827A US 13769616 A US13769616 A US 13769616A US 13769616 A US13769616 A US 13769616A US 1215827 A US1215827 A US 1215827A
- Authority
- US
- United States
- Prior art keywords
- steps
- landing
- treads
- dock
- side rails
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/14—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
- B63B27/143—Ramps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/14—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
-
- 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
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
- E06C1/387—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders having tip-up steps
Definitions
- This invention relates to the class of steps used, for convenience and safety, in passing from boat or landing float to a dock, and my immediate object is to provide serviceable, and reasonably cheap, steps which will rise and fall with the tide and will automatically adjust themselves so that the several treads will remain at all times in parallel relation to each other and in an approximate level position, whether the tide be high or low.
- Fig. 2 is a side elevation of the upper end portion of the steps and of a portion of the dock, illustrating particularly one man ner of hinging the steps to the dock.
- Fig. 3 is a plan view of one of the treads and of portions of the side rails in which the treads are journaled, and Fig. 4 is an edge view of said tread.
- Fig. 5 is a transverse, sectional view taken on the line 5-5 of Fig. 3.
- Fig. 6 is a plan view of a metal tread having a facing of rubber or the like material and
- Fig. 7 is an edge View of the same.
- the numeral 20 indicates a landing float and 21 indicates a portion of a dock.
- 22 is a platform mounted to roll freely on the said landing float and provided with uprights 2324 to which are hinged the lower ends of the side rails 25 and 26 of my improved steps, as will be best understood by reference to Fig. 1 of the drawings.
- the upper ends of the said side rails are hinged to the dock 21.
- said rails are hinged, at 27, to brackets 28 that are bolted to the dock and, by preference, I also connect the said rails with the dock by means of a chain 29 so that, in the event of the breaking away of the hinge pintle 27 the steps will be prevented from Copies of this patent may be obtained for falling.
- Each journal 31 is further extended and shouldered down, as at 31 to receive a spur gear 32 that is clamped to the bar 31 by means of a nut 33 in such manner that the said gear and the bar 31, and the tread 30 are, in eflect, a single structure and are adapted to rock as such in the side rails.
- Each of the treads is thus provided with a spur gear 32 and between the adjacent gears are intermediate gears 34 by means of which the several gears 32 are connected in train and, by reason of which, the several treads are caused to rock in unison.
- spur gear 35 Fixedly secured to the stand 23 is a spur gear 35 which is in mesh with the lower gear of the described train.
- the platform 22 When the float 20 rises or falls with the tide the platform 22 is caused to rise or fall correspondingly but always preserves an approximate level position. As the said platform rises the side rails of the steps are caused to approach a horizontal position but the described train of gearing causes the several treads 30 to maintain a horizontal position whatsoever the inclination of the side rails may be.
- the treads may be made of wood, as in Fig. 1, or may be made of metal, with a rubber facing (to prevent the feet of the user of the steps from slipping), as in Figs. 6 and 7.
- Risers 30 may be attached to the front-edges of the treads if desired.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Escalators And Moving Walkways (AREA)
Description
E. R. LORD.
LANDING STEPS. APPLICATION FILED MAR. 23. I916- nsncww 05c. 18. 19I6.
Patented Feb. 13, 1917.
2 SHEETSSHEET l Wale/L106 A TTORNEY$ E. R LORD.
LANDING STEPS.
APPLICATION FILED MAR. 23. I916. RENEWED DEC. 18,1916.
Patented Feb. 13, 1917.
2 SHEETS-SHEET 2 WITNESS OR/VEN EDWARD R. LORD, OF READING, MASSACHUSETTS.
LANDING-STEPS.
Specification of Letters Patent.
Patented Feb. 313, 191%.
Application filed March 23, 1916, Serial No. 86,315. Renewed December 18, 1916. Serial No. 137,696.
To all whom it may concern:
Be it known that I, EDWARD B. LORD, a citizen of the United States, residing at Reading, in the county of Middlesex, in the State of Massachusetts, have invented a certain new and useful Improvement in Landing-Steps, of which the following is a specification, reference being had to the accompanying drawings.
This invention relates to the class of steps used, for convenience and safety, in passing from boat or landing float to a dock, and my immediate object is to provide serviceable, and reasonably cheap, steps which will rise and fall with the tide and will automatically adjust themselves so that the several treads will remain at all times in parallel relation to each other and in an approximate level position, whether the tide be high or low. This desirable result I attain by means of the novel construction of steps illustrated in the annexed drawings, in which Figure 1 is a perspective view of steps embodying my present improvement, showing the same connected to a dock and landing float.
Fig. 2 is a side elevation of the upper end portion of the steps and of a portion of the dock, illustrating particularly one man ner of hinging the steps to the dock. Fig. 3 is a plan view of one of the treads and of portions of the side rails in which the treads are journaled, and Fig. 4 is an edge view of said tread.
Fig. 5 is a transverse, sectional view taken on the line 5-5 of Fig. 3. Fig. 6 is a plan view of a metal tread having a facing of rubber or the like material and Fig. 7 is an edge View of the same.
In these drawings the numeral 20 indicates a landing float and 21 indicates a portion of a dock. 22 is a platform mounted to roll freely on the said landing float and provided with uprights 2324 to which are hinged the lower ends of the side rails 25 and 26 of my improved steps, as will be best understood by reference to Fig. 1 of the drawings. The upper ends of the said side rails are hinged to the dock 21. In Fig. 2 said rails are hinged, at 27, to brackets 28 that are bolted to the dock and, by preference, I also connect the said rails with the dock by means of a chain 29 so that, in the event of the breaking away of the hinge pintle 27 the steps will be prevented from Copies of this patent may be obtained for falling. In Fig. 1 I have illustrated said side rails as hinged at 27 to a platform which is bolted to the dock. The treads of the steps are denoted by the numerals 30 and each tread has fixedly secured thereto a bar or plate 31 whose ends are extended beyond the tread and turned down to provide journals 3131 which are loosely seated in holes in the side rails 25-26.
Each journal 31 is further extended and shouldered down, as at 31 to receive a spur gear 32 that is clamped to the bar 31 by means of a nut 33 in such manner that the said gear and the bar 31, and the tread 30 are, in eflect, a single structure and are adapted to rock as such in the side rails. Each of the treads is thus provided with a spur gear 32 and between the adjacent gears are intermediate gears 34 by means of which the several gears 32 are connected in train and, by reason of which, the several treads are caused to rock in unison.
Fixedly secured to the stand 23 is a spur gear 35 which is in mesh with the lower gear of the described train.
When the float 20 rises or falls with the tide the platform 22 is caused to rise or fall correspondingly but always preserves an approximate level position. As the said platform rises the side rails of the steps are caused to approach a horizontal position but the described train of gearing causes the several treads 30 to maintain a horizontal position whatsoever the inclination of the side rails may be.
The treads may be made of wood, as in Fig. 1, or may be made of metal, with a rubber facing (to prevent the feet of the user of the steps from slipping), as in Figs. 6 and 7. Risers 30 may be attached to the front-edges of the treads if desired.
Having thus described my invention, I claim as new and wish to secure by Letters Patent In combination with a dock and a landing float, steps hinged to said dock and slidably supported on said float; said steps consisting of side rails, treads journaled to rock in said side rails, and means consisting of a train of gearing connecting the journals of the treads for automatically maintaining said treads in horizontal position regardless of the angle of inclination of the side-rails.
EDWARD R. LORD.
five cents each, by addressing the Commissioner of Patents,
Washington, D. 0.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13769616A US1215827A (en) | 1916-12-18 | 1916-12-18 | Landing-steps. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13769616A US1215827A (en) | 1916-12-18 | 1916-12-18 | Landing-steps. |
Publications (1)
Publication Number | Publication Date |
---|---|
US1215827A true US1215827A (en) | 1917-02-13 |
Family
ID=3283713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13769616A Expired - Lifetime US1215827A (en) | 1916-12-18 | 1916-12-18 | Landing-steps. |
Country Status (1)
Country | Link |
---|---|
US (1) | US1215827A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5794292A (en) * | 1996-11-20 | 1998-08-18 | Ricci, Jr.; Patrick J. | Portable gangway with leveling stairs |
US6234272B1 (en) | 1999-09-03 | 2001-05-22 | New Hanover Airport Authority | Releasable, portable stairway for use with a boarding bridge |
US6425711B1 (en) * | 2000-08-25 | 2002-07-30 | Terry R. Kiter | Combination step and ramp apparatus for floating docks |
US20050235437A1 (en) * | 2004-04-05 | 2005-10-27 | Carrigan Stephen A | Convertible dock ramp |
US20060075952A1 (en) * | 2002-06-18 | 2006-04-13 | Michele Grimaldi | Movable platform unit for a boat particularly for hauling and launching tenders and the like |
US20070101516A1 (en) * | 2005-04-05 | 2007-05-10 | Carrigan Stephen A | Convertible dock ramp |
US20080156933A1 (en) * | 2006-12-26 | 2008-07-03 | Airbus | Collapsible staircase, notably for a vehicle such as an aircraft |
US20090020360A1 (en) * | 2007-07-18 | 2009-01-22 | May Brian A | Landing ladder |
DE202009007140U1 (en) | 2009-05-18 | 2009-09-03 | H + B Technics Gmbh + Co. Kg | Watercraft with height-adjustable platform |
US20100288179A1 (en) * | 2007-12-28 | 2010-11-18 | Opacmare S.P.A. | Movable platform assembly for a boat, particularly for hauling or launching tenders or the like |
ITVI20130170A1 (en) * | 2013-07-04 | 2015-01-05 | Swissway Srl | LOADING DEVICE FOR A BOAT |
US9260916B1 (en) * | 2013-09-09 | 2016-02-16 | Tabatha T Brotherton | Combination fire-truck ladder and slide |
US20170101821A1 (en) * | 2015-10-07 | 2017-04-13 | Intex Marketing Ltd. | Ladder with safety features |
-
1916
- 1916-12-18 US US13769616A patent/US1215827A/en not_active Expired - Lifetime
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5794292A (en) * | 1996-11-20 | 1998-08-18 | Ricci, Jr.; Patrick J. | Portable gangway with leveling stairs |
US6234272B1 (en) | 1999-09-03 | 2001-05-22 | New Hanover Airport Authority | Releasable, portable stairway for use with a boarding bridge |
US6425711B1 (en) * | 2000-08-25 | 2002-07-30 | Terry R. Kiter | Combination step and ramp apparatus for floating docks |
US20060075952A1 (en) * | 2002-06-18 | 2006-04-13 | Michele Grimaldi | Movable platform unit for a boat particularly for hauling and launching tenders and the like |
US7121226B2 (en) * | 2002-06-18 | 2006-10-17 | Opacmare S.P.A. | Movable platform unit for a boat particularly for hauling and launching tenders and the like |
US20050235437A1 (en) * | 2004-04-05 | 2005-10-27 | Carrigan Stephen A | Convertible dock ramp |
US7159261B2 (en) | 2004-04-05 | 2007-01-09 | Carrigan Stephen A | Convertible dock ramp |
US7383600B2 (en) | 2005-04-05 | 2008-06-10 | Carrigan Stephen A | Convertible dock ramp |
US20070101516A1 (en) * | 2005-04-05 | 2007-05-10 | Carrigan Stephen A | Convertible dock ramp |
US20080156933A1 (en) * | 2006-12-26 | 2008-07-03 | Airbus | Collapsible staircase, notably for a vehicle such as an aircraft |
US8925686B2 (en) * | 2006-12-26 | 2015-01-06 | Airbus | Collapsible staircase, notably for a vehicle such as an aircraft |
US20090020360A1 (en) * | 2007-07-18 | 2009-01-22 | May Brian A | Landing ladder |
US20100288179A1 (en) * | 2007-12-28 | 2010-11-18 | Opacmare S.P.A. | Movable platform assembly for a boat, particularly for hauling or launching tenders or the like |
US8646400B2 (en) * | 2007-12-28 | 2014-02-11 | Opacmare S.P.A | Movable platform assembly for a boat, particularly for hauling or launching tenders or the like |
DE202009007140U1 (en) | 2009-05-18 | 2009-09-03 | H + B Technics Gmbh + Co. Kg | Watercraft with height-adjustable platform |
ITVI20130170A1 (en) * | 2013-07-04 | 2015-01-05 | Swissway Srl | LOADING DEVICE FOR A BOAT |
US9260916B1 (en) * | 2013-09-09 | 2016-02-16 | Tabatha T Brotherton | Combination fire-truck ladder and slide |
US20170101821A1 (en) * | 2015-10-07 | 2017-04-13 | Intex Marketing Ltd. | Ladder with safety features |
US10920492B2 (en) * | 2015-10-07 | 2021-02-16 | Intex Marketing Ltd. | Ladder with safety features |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US1215827A (en) | Landing-steps. | |
US1419834A (en) | Adjustable tread stairs | |
US1645879A (en) | Ladder and platform support | |
US1352914A (en) | Shelf for ladders | |
US501694A (en) | richards | |
US1806502A (en) | rosenberg | |
US427378A (en) | Charles thomson | |
US763209A (en) | Step-ladder. | |
US1249719A (en) | Movable platform for the stern end of car-floats. | |
US291931A (en) | Max piutti | |
US307980A (en) | Freight-elevator | |
US268596A (en) | Drews | |
US547337A (en) | Ship s ladder | |
US552180A (en) | Extension-ladder and fire-escape | |
US469751A (en) | Charles ii | |
US1108126A (en) | Road-drag. | |
US552531A (en) | Fire-escape | |
US1052221A (en) | Extra deck. | |
US1178314A (en) | Fire-escape. | |
US1068442A (en) | Apparatus for building foundations and walls. | |
US1021643A (en) | Lowering device. | |
US296526A (en) | Folding staircase | |
US1240152A (en) | Torpedo-guard. | |
US1186404A (en) | Extensible ladder. | |
US269618A (en) | Self-leveling berth |