US1836453A - Ship gangway - Google Patents

Description

DeC- 15, 1931- J. T. D'E vEAU E1-AL 1,836,453

SHIP GANGWAY Filed` March 27, 1930 2 Sheets-Sheet l Dec. l5, 1931.

J. T. DE vEAU ET AL SHIP GANGWAY 2 Sheets-Sheet Filed March 27, 1950 Patented Dec. l5, 1931 UNITED'STAr-Es PATENT oFFILc-E, j

' JOHN T. DE vnAU AND HERBERT MALLET, or GnEENroRT, NEWxonx smi GANGWAY Application iued'vnarh 27, 1930. serial No. 439,462;

i This invention relates to ships gangways and particularly to those gangways which are pivoted at the side of the ship.

Ships which are intended to lie at anchor and be served with small boats are usually 1 with a rail and the gangway is also provided with a rail.

In the past, it has been the usual custom to make the railing of the platform and the railing of the gangway independent of each other. This necessitates a flexible connection between the two railings which destroys a continuity between the two. When the gang- 'way is raised prior to getting the ship under way, then the space between the two railings the gangway rail is above the gangway.

The primary object of this invention is the provision of an improved railing fora pivoted ships gangway wherein the railings of the upper platform and gangway are always continuous whether the gangway is lowered or raised and wherein the gangway will always be held firmly in place.

Another' object of the invention is the provision of an improved railing with stanchions having flanged pivots for their support.

Other and further objects of the invention will appear to those skilled in the artfrom` a reading of the complete specification and claims. v

Referring to the drawings wherein is illustrated a preferred embodiment of the inop vention.

Figure 1 is a side viewof a ship with the gangway lowered.

Figure 2 is a similar view with the 'gangway raised. Y f Y p v Figure 3 is an enlarged view of the flanged pivot and its mountings. y

Figure 4 is a cross section on the line 4-4 of Figure 3. p

Figure 5 is a similar crosssection, but with the pivot unsectioned.

The saine reference numerals are used for is closed and the platform railing is naturally f at a greater distance from the platform, thanV the same or similar parts `throughout the drawings and specifications. H 5

The numeral 10 designates the ship witha deck Vlevel at 11 and having'an upperv gang?,` wayplatform '12. This platform is usually secured Vin place by f eyes anddetachable hraces1'3.- Y p Y Q Secured jtothe :platform 12 are thel removable upright'fstanchions' l14 'which support, at their upper ends, the rail 15. To the after edge of the platform 12 is-.pivotedfat 16, the gangway having `the sides 17 and the lower landing 18 which may be integral with the sides 17. AThe gangway may be supportedV by any Vlsuitable means asthe bail member 19 which in turn is supported from a block and' fall 20. l f

`Pivoted at the end of the platform railing lfis a gangwayurailing E211-whiohisfofav length fofV length substantiallyequal to the the step supporting sides 17 .l y p n The particular feature lof my invention is theconnection between the step'-supporting `side'sl?k and the gangway railing 21.4 -Connected to the gangway Vrailing21 at its lower: side7 will befoundone `or` more swinging p stanchvions 22. rVVhil'eit wouldbe an' easy matter togpivot the lowerjlends offfthe stanchions 22 totheg'angway sides 17, such I a pivot must, to meet all conditions be' strong`- enough to withstandthe strains# of usage,

must move freely and mustnot protrude far y on either side 4of the relatively thin ga'ngway! sidesl?.` y Tf VTo accompli-sh these-ends, Il have providedl such a pivot lconstruction whichj'islso ,constructed that it may lie wholly on the outside,-

. ofthe gangway sidesland yet will-not protrude vmuch `beyondT gthev outside` ,of .the 'stanchions and none beyond the..railing..

Referring particularly toFiguresBAand 5,V a,l plate 23 which I have shown in this eml Y bodi'ment as beingn circulanisprovided with acirciilar opening invwhipchufis located the pivot'member 211i@` y l A y The plate 23fis` provided on its'rear withY two progressively' undercut `portions `25, 26;

' 'Intermediate the `,axial length of the .pivot member 24 is a flange member 27` lwhichin the formshown, extends circumferentially .and

is of a shape to lit in the undercut 215. A securing plate 28, of annular shape fits at its outer edge the under cut opening 26 and at its inner edge has Contact and bearing with the main body of the pivot member 24. The inner end of the pivot member 24 is so placed with relation to the rear face of the securing plate 28 and the edge 29 ofthe plate 28 that the pivot may be freely turned without vbinding. The flange 27 is held between the vplate 28 and the seeuringfpla'te 28 by suitable securing means as the screws 30. g

On the outer end of the pivot member 24 is a lug 3l containing a socket 82. Secured as by threads or by brazing, or both, in theV socket 32 is the stanchion 22, already described. Y l

Y, The pivots 22a, and 15a at the upper ends ofthe stanchions 22and between the railings l5 and 21, are parallel-,with the axes of the pivot members 24 Yand consequently when the gangway is raised toward the position shown in-Figure 2, the parallel relation between the railing 21 and the gangwayside 17 and also between: the stanchions 22, will be maintainedf g Y,

The extension-of the flanges 27 over such a wide circumference and over such a large surface, rendersthe device very stable and not Subj ectto binding or dislocation when in use. The` large circumference of the flange 27 gives the device great strength in allrdirections while not interfering with the movement in its plane of rotation. e

While there is illustrated and described in' `and platform railing with gangway' sides pivcted'to the'fplatform and a railing pivoted to the platform railing, a stanchion pivoted atitsupperend tothe gangway railing,l a pivot at its lower end, la .plate having anopening atvitsforwardfside anda depression at its rear; the `opening being' of a size to it the receive the flange and a securing plate to hold the pivot in place.

3. In a ships gangway having .a platform and platform railing with gangway 4sides pivoted to the'platform and a railing pivoted to the platform railing, .a stanchion pivoted at its upper end to the gangway railing, a pivot at its lower end, lthe pivot having a flange intermediate the ends of its bearing surface, a plate having a bearing surface, adjacent. its face and a depression at its rear to receive the flange and a securing plate to hold the pivot in place, the securing plate having an opening to provide a bearing for a portion of thepivot. i

In testimony whereof we hereunto alx our signatures. 1

JOHN T. DE VEAU. HERBERT MALLET.

stanchion pivot, the pivot having a flange to -and platform railing with gangway sides pivoted to the platform and a railing pivoted to the platform'railing, a stanchion pivoted at y its upper :end togthegangway railing, a pivotatits lower endkthepivoty having a flange intermediate the endsof its bearing surf.aee,ia plate having a bearing` surfacead-V jacentitsface anda depression at its rear to

Images