US2062384A - Seaplane pontoon - Google Patents

Description

Dec. 1 193s'. L. J. wHlTE ET AL 2,062,384

SEAPLANE P( NTOON Filed April sa, 1935 f Patented l, 1936 UNITED STATES PATENT oil-Fica SEAPLANE PoN'rooN Lorencay white and clarence w. Munn, M11- waukee, Wis., assignors of one-fourth to Della M. Huelsbeck, Milwaukee, Wis. Application Api-11 29, 1935, sel-m Nt. issus ranged controls located relatively remote fromA the positions of said means whether same be 15 beneath the cabin assembly or beneath outboard pontoon elements removed `from the `main or cabin portion. I

The providing of novel structure integrally incorporated in the construction of aeronautical 20 craft such as seaplanes, or, as independent means attachable to aeronautical craft already existing prior to this innovation, permitting the employment of compressed-air, or exhaust gases, as

forces assisting buoyant constructions when ris- 25 ing from their supporting element.

Other advantages will be specifically referred to throughout the particular description and pointed out in the appended claims, both divisions of this application referring to the accompanying 30 drawing illustrating this invention.

The several views shown are indexed as follows:

Fig. 1 is a sectional side elevation of a hull, or,

pontoon-like structure. 35 Fig. 2 is a bottom-plan view of Fig. 1.

Fig. 3 is a section on line 3-3 of Fig. 1. Fig. 4 is a perspective view of one modification. Fig. 5 is a perspective view of another modification. 40 In view of the plurality and buoyant similarity common to a ship-like cabin hull and its associated pontoons, this description will be confined to one such assembly. Those associated accessories necessary in the controlling of sea-going planes 45 will, of course, be understood as requisite equipment located 'about the piiots quarters where the instrument panels will include such additional means fitted for actuating the present invention. The structural elements of concerned crafts, u wherein this improvement is installed, will be taken advantage of for supporting or masking from view those elements required for conveying the principal forces employed and the tubes through which remote control is effected. The

` 55 several valves, fittings, and man1-.ally controlled apparatus, will besuch appurtenances as are best adapted to the duties each perform, the same being in accord with standard practice in theaeroplane industry. .In this regard the disclosures seen on the drawing'are, Tin a sense, dia- 5 grammatic views that infer accepted materials pertinent and proper to the purposes involved.

Similar characters of reference apply to like parts throughout theseveral views.` Y

Referring to the drawing, P is a pontoon assembly designed in the customary manner to provide an air-tight and buoyant sliell offering the hull formation H, whose after portion is fashioned to leave a wake-relief provision Ha in the pontoons keel-line proper. The last to be submerged portion Ha is designed to provide a hollow manifold construction M whose particular arrangement offers major ducts` D from which extend minorducts Dathat terminate in flared and slit-like nozzles N. The major ducts unite in a medial passage G which ends in the form of a regular tube that is threaded to receive an air operated valveV the latter functioning as a uniting element joining said regular tube to a storage reservoirR. located within the pontoon P. The said reservoir will be a separable unit supplying the said manifold M which latter, in this instance, is an integral part of the pontoon structures hull which at this point is formed with double plate members welded together to form l the necessary duct provisions set forth. 'I'he innermost plate S willbe impressed to oil'er the ducts D, Da, 'the inner portions of the nozzles N, and the root of the tube G. The outer plate Sa will be regularly surfaced to conform to the smooth face of the hull body H, except at the nozzle mouths where there will be a slight. expanding of the plate Sa to attain the desired flare for the slit openings Na. It will be obvious that a reservoir, such as R, will not be an essen- 40 tial element where the manifold lassembly is @For this reason particular conceptions o`f such considerations are here omitted beyond a mention that such means will be provided to permit the use of desired forces. Where the force is their equivalent for aquaplanes. These convencompressed-air, a suitable pump, geared to the crafts motor, will supply an equally apprilpriaie container tank aboard the main or fuselage section. The take-off instances will, except in emergencies, occur at definite stations, or, ports of call whereat there are all tho conveniencesnecessary to the equipping of landingiields, or',

iences include compressed-airV service ready to replenish the reservoirs R should they require this attention. From the said reservoir will lead a pipe or conduit whose terminusin the craft's cock-pit will include a suitable throttle-valve for admitting the exhaust gases, or compressed-air,

designated as T, the said throttle-valve being Ta. In this conduit will occur an air-supply valve Va wheretomay he attached the replenishing line from a `land station air source. At any convenient location in this same line (T) there will be a pressure-gauge o between the reservoir R and the valve Ta. The conduit or line T is -connected-up as the label appearing infers. Be-

tween the linesl valve Ta and the said source, a

. tube C leads from the conduit T to the valve V and this element is controlled by a suitable valve Ca for actuating the valve V which latter is of appropriate design that opens in response to pressure passed through said tube in order to release the contents of theV reservoir R which finds its` discharge through the nozzles N; the valve functions to close Vautomatically when the said pressure is withdrawn. The pressure conveying film breaking up the relationship between hull and water. The saidmanifold will be a bifurcated arrangement, or, a singular arrangement as conditions demand. The sumV of the outlet areas forming the discharge orifices will be equal to the diametrical area of the aforesaid passage G to assure uniform discharge through all ofthe saidoriiiceaihevalvevfunctionsasachockvalve for safeguarding the mervoir against4 The manifold M beings. consonant part of the general structure will take the shape of the hull H: however, this invention intends application to craft already existingand in order to meet the conditions prevailing a separate entity, shown as lig. 4, is devised. The modincation M' is in all respects the equivalent of the bifurcated arrangement shown. The nozzles may be separable elements N', which are threaded to the main body within the hull H. Fig. 5 shows another form M" that offers a singular arrangement with more direct nozzle connection thereto. In the Fig. 4 concept the necks Do would be attached then bent to align thel discharge orifices with respect .to the hulls contour.

Havingdescribed the invention what is claimed and desired to protect by United States Letters Patent, is:-

1. A pontoon structure incorporating avpressure force reservoir; -a tapering keel-following conduit leading from said reservoir; relatively reduced branch passages continuing laterally the service offered by s aid conduit; singular, flared, and, relatively enlarged nozzle formations terminating said conduit and said passages; slit openings-providing a restricted discharge orifice for each of thesaid nozzles; said orifices disposed to be coincident to the transverse curvature of the pontoons outer hull surface; and a valve element between said reservoir and said conduit responsive vto remote control means, selectively directing the replenishing product of said reservoir, for unobstructedly uniting said reservoir and said conduit within the aforesaid pontoon. l

2. A pontoon structure having, a double-plate hull portion, the inner plate member of said portion embossed to offer a-keel-following conduit extended by laterally branching passages, nozzle formations provided'with slit discharge orifices'- fashioned by expanding the outer member of said portion, said formations terminating said conduit and said passages when said members are integrally joined together, and a completed tubular aspect given said inner plate member for permitting the connecting of same to a valve gated pressure reservoir within said pontoon.

LQREN JAY Wm'IEL CLARENCE w. MUNN.

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