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Publication numberUS1329924 A
Publication typeGrant
Publication dateFeb 3, 1920
Filing dateDec 28, 1918
Priority dateDec 28, 1918
Publication numberUS 1329924 A, US 1329924A, US-A-1329924, US1329924 A, US1329924A
InventorsPaul Henry S
Original AssigneePaul Henry S
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Standardized accommodation-ladder system
US 1329924 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)



APPLICATIUN FILED DEC. 23.1913. K 1,329,924, Patented Bel). 6,1920.





Patented Feb. 3,1920.




7 V Specification of Letters Patent.

: Pat entedFeb.

Application filed December 28, 1918. Serial No. 268,685.

To all whom it may concern.

Be it known that I, HENRY S. PAuL, a citizen of the United States, and ajresident' of Portsmouth, in the county of Rockingham and State of New Hampshire, have invented a new and Improved Standardized Accommodation-Ladder System, of which the following'is a full, clear, and exact description.

The invention relatesto marine vessels, and its object is to provide a new and improved standardized accommodation. ladder system arranged tovpermit adjustment according to the fore and aft sheer of the vessel. Another object is to permit of conveniently and quickly placing the ladder in position for use on the side of the vessel or removing it therefrom whenever it is desired to do so. Another object is to make the accommodation ladder in sections to fit vessels of different freeboard.

WVith these and other objects in view the invention consists of certain novel features of construction as hereinafter shown and described and then specifically pointed-out in the claim.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a side elevation of the accommodation ladder as applied to a marine vessel;

Fig. 2 is a plan view of the same,

Fig. 3 is a front elevation of the same with the marine vessel shown in cross section;

Fig. 4 is a perspective view of the upper or deck platform and a portion of the upper end of the uppermost ladder; and

Fig. 5 is an enlarged front elevation of a portion of one of the platforms in position on the side of the vessel and with part shown in section.

In the general construction of the accommodation ladder system use is made of sets of brackets 10, 11 and 12 bolted or otherwise secured to the side of the marine vessel 13 on which the accommodation ladder is to be used. The brackets 10, 11 and 12 are adapted to support detachable platforms 15, 16 and 17, of which the platform 15 is the uppermost and is approximately on a level with a deck18 of the vessel, and an opening 19 is formed in the side of the ves-' sel to permit a person to pass from the platform. 15 onto the deck 18 or from the latter onto the upper platform-15. The platform 16 is an intermediate platform and the platform 17 is the landing platform and isa short distance above; the water to permit persons to step from a boat onto the plat-- form 17 or fromthe latter into the boat.

The brackets 10, 11 and 12 and the platforms 15, 16 and 17 arearranged one in front and one below the other, and the platforms 15, 16 and 17 are connected with each other by ladders 20- and 2l,'of which the ladder 20 is provided at its upper end with pivots 22 engaging bearings 23 attached to thefront edge of the platform 15, as plainly shown in Figs. 1, 2 and 4. Thelower end .24 of the ladder 20- has its stiles rounded off and resting on the rear side of the platform 16, The front of this platform is provided with bearings 25 engaged by pivots 26 held on the upper end of the ladder 21, and the lower rounded off ends 27 of the stilesof this ladder 21 rest on the rear of the landing platform 17. It will be noticed that a person alighting on the platform 17' can readily pass up the ladder 21 ontothe platform 16 and from the latter by way ofthe ladder 20 onto the platform '15 to finally step from V the latter onto the deck 18. and a person on leaving the deck can readily pass down the 7 several platforms and ladders to finally reach a boat adjacent the platform 17. The lower platform 17 is provided at the outer side with a fender 28 which. extends downward below the water level to permit a boat to readily draw up alongside of the platform 17 for a person to step out of the boat onto the platform 17 or from the latter into to provide a strong platform structure.

The lower end of each arm 35 is provided with one or more abutting members 40 adapted to abut against the side of the vessel 13 to hold the corresponding platform approximately in a horlzontal position. Each abutting member 40 is preferably in the form of a bolt 41 adjustably secured in a bar 42 connecting the arms 35, and the bolt 41 is provided with a head 43 preferto abut against the side of the vessel 13 with a view to prevent marring or scrap;

ing of the paint of the'vessel side. It will be noticed that by adjusting the bolt 41in the bar 42 the arm can be readily adju ted to vertical position to hold the platform 15,16 or 17 in the desired horizontal position. a a

The accommodation ladder is provided at its outer side witha railing made in sections as follows: On the deck platform 15 are, secured posts supporting rails 51 at the outer side and the rear end, as plainly illustrated in Figs. 1 2and 3. On the outer stile of the ladder 20 aresecured posts 52 supportingl per end t e corresponding end of the rail 51. On the outer portion of the platform 16 are erected posts 54 supporting a rail 55 joinedv at one end with the lower end of the rail 53; On the outer stile of the lower ladder 21 are secured posts 56 carrying a rail 57 joined at its upper end to the rail 55 and at its lower end to a rail 58 extending transversely and mounted on posts 59.

Posts 60 are erected on the front side of the bottom platform 17 and support a transverse rail 61. The rails 53 and 57 are adpreferred manner, and are arranged to be detachably joined to the rails of the platforms in order that the ladders may be employed to connect platforms which are of different distances apart.

From the foregoing it will be seen that 'by the arrangement described the brackets tion thereon or removed therefrom.

a rail 53 which joins atthe up-' 10, 11 and-12 form permanent'partsof the ship side while the platforms 15, 16 and 17.. "40

are removably connected with the said brackets, and can be readily placed in posi;-

It will also be noticed that the ladders 20, 21 can i be readily connected or disconnected at their r upper ends from the corresponding platforms 15 and 16 but in practice the ladders V 20 and 21 are alike in construction and can I be interchangeably used on either platform to connect one platform'with the one-next below, as shown and'described.

Having thus described my invention, -1

"claim as new and desireto secure by Letters Patent r.

An' accommodation ladder system adapted to be used upon marine vessels of vary;

ing height of freeboard and having sides of varying longitudinal, and vertical curvilinear conformation, said ladder system' the vessel, one in front of and below the other, said platforms having rigid depend ing bracing arms arranged for adjustable V abutment against the sides of the vessel to hold the platforms approximately in a right angle position relative to'the sides of vesand ladders pivotally connected at their upper ends to the said platforms and having their lower ends freely resting on the next platform below, whereby said ladders are arranged to connect platforms which are of V varying distances apart.


sels of varying curvilinear conformation, r

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2617131 *Aug 26, 1948Nov 11, 1952Stanolind Oil And Gas CoLanding gear
US2641785 *Jun 26, 1948Jun 16, 1953Standard Oil Dev CoMarine transfer ramp
US4107932 *Aug 24, 1977Aug 22, 1978Cantrell Seals RPortable dock
US4606090 *Jun 8, 1984Aug 19, 1986Woodford Manufacturing CompanyAuxiliary loading dock ramp
US4998313 *Jul 13, 1989Mar 12, 1991Massachusetts Institute Of TechnologySelf-adjusting variable height gangway system
CN102897288B *Oct 15, 2012Dec 16, 2015浙江正和造船有限公司一种码头登船梯
WO2013057094A1 *Oct 16, 2012Apr 25, 2013Windsea AsGangway for an offshore structure
U.S. Classification182/86, 182/106, 14/71.1
International ClassificationB63B27/14, B63B27/00
Cooperative ClassificationB63B27/14
European ClassificationB63B27/14