US1991675A - Insulated boat construction - Google Patents

Description

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eb. 9, 1935. Q HUSSMAN INSULATED BOAT CONSTRUCTION Filed Aug. 22, 1931 `Patented Feb.`l`9, 1935Y .i

l' poration fof -Illinois .L INsoLArnDeBoAT CONSTRUCTION sfolaims'." o1."114;78)f i Y Y Y u 'maybe'ofa thickness of about Theseboaids 'I his invention relatesito`b0at "constructions, and has referencegmore particularly to boatconi i structionsin whichtheengine roomfis provided `With sound/and heat insulating `bulkheads for preventing sound andheat from passing into'thel 4 i other Motor boats,A yachts, vsteamships, ,ya

`'types of power-,driven water,craft1are1usually boat.

An object of` this invention'therefore, is to provide a sound-proof bulkhead for use in' boats Vwhich will isolate the `sound and heat of the engine room and prevent the annoyance of people on the boat; also to improve boat constructions which,

in other respects hereinafter Vspecified and claimed.

Reference is to be had to the Yaccompanying drawing forming a part Yof this specification, in

Fig. 1 is a diagrammatic sectional elevation of my improved bulkhead construction for'boats, Fig. 2 is an elevation of the bulkhead with parts broken away to disclose the construction, Y Fig. `3 is a transverse, sectional view through the bulkhead taken on line 3-3 of Fig. V1,

Fig. 4 is a sectional elevation on a large scale through the bulkhead, and .v

Fig. 5 is a sectional plan view on a large scale showing themethod of joining the sound impinging panels.

A power boat is commonly provided with an engine, oil motor 11, or the like, for operating the propeller shaft 12 and causingthe propulsion of the boat through the water. The boat is `also commonly provided with cabins or decks 13 which adjoin the engine room-14.,-

In order to separate the engine rooml ,14 from the cabins 13, I provide a sound andl heat insulatcent fiber boards being covered witha metal Yfoil 17 to prevent cracking of the plastic paint due to j the vibration of the boat and due to strains pro- Y, duced by shrinki'ngrand warping of the boards V15. These berboards are preferably made of ground wood `fiber formed into nat boards and may `therefore, be termedffsyntheticber boards as `distinguished from woodrrwhich YhasV a'lower Y heat insulating value. V`l\Tailing-s trips 18 are pro-- videdrradjacent'the inside edges'of the boardsl5, andt'said nailing strips may besecured by bolts 1,9 tothe leg of a frame-angle j20.- T,he angle2 is connect/ed at its ends to themainframe structureoftheboat. j The bulkhead proper maypconsist offan'eighth inch Steelplate 21, or other suitable thickness or material, which may besecuredto'an angle leg 22 by welding or otherwise. 'A light weight panelV of synthetic fiber board 23 is preferably provided inside of the engine rooml4, said panel having sheets of thin steel 24, or other suitable metal,

"on each of its faces, preferably attached to the ber boardby a suitable adhesive. The panel 23 i's"resiliently attached to the bulkhead 21`byV means of springv clipshaving central Vsaddle members 25, integral outstanding loops 26, and clipl ends 27 in a plane different from that of the saddle member'25. The two clip ends 27 are preferably connected together by means of a strip of metal 28 to which the clip ends may be spot welded, and the: strip 28 is secured to the innerV face of thevbulkhead 21 by welds 29. A short piece of Square tubing 30 or other spacer block,

is interposed between the saddleV member and the inner sheet 31 of the `panel 23. This tube is preferably weldedV to the saddle member 25, Y

and albolt 32 passes through said saddle member,

' tube, sheet 31, panel 23 and sheet 24,7to receive waves impinging upon theY metal sheet 24 and thusvprevent the transmission of sound through the bulkhead 21. The two heat insulating panels 23 and l5` prevent the transfer of heat through the bulkhead construction and thus confine the .Y 1 heat to the engine room to'be disposed of by suitable ventilation. `Where the edges ofthe panel 23 adjoin,` (Fig-5) the inside metal sheet 3l is bent Yat right angles to forman edge covering section 34, whichin turn is bent outwardly at anacute angle to formbpposed dovetail flanges 35. A sealing strip 36 is provided overthe dovel .tail flanges 35, and said sealing strip is provided with inwardly turned dovetail fianges 37 to co'- operate with the flanges 35. After assembly,

these flanges and 37 are hammeredV flat and welds 38 are provided to Vfirmly attach the sealing strip and flanges 37 to the inside metal sheet 24. By this construction, the edges of the'ber panels 23 Vare protected against moisture inly tration, and the adjoining panels are securely y I would state in conclusion gwhilethe illustrated Y examples constitute practical embodiments of my invention, I do not wish to limit myself precisely to these details, since manifestly, the same may be considerably varied Without departing from the spirit of the invention as deiinedinthe ap-l and saddle member.

pended claims.

, Having thus described my invention, I claim as new anddesire to secure by Letters Patent:-

' 1. In a bulkhead construction for boats, a sheet metal panel, a fibrous, 10W density, synthetic, heat insulating panel in spaced, parallel relation to said metal panel, and resilientgspring clips yieldingly connecting said panels so as to board panels arranged in a plane in substantial edge abutting relation, metal sheets enclosing said panels, flanges extending outwardly from said sheets, and a sealing strip secured to said flanges across the joint between adjacent panels.

3. In a boat partition structure, a pair of low density, synthetic, ber boardV panels in spaced,

parallel relation, facing metal on the exposed;`

faces of said fiber boards, and resilient spring clips yieldingly connecting said panels so as to retard the passage of heat and sound through said bulkhead.

a plurality of ,fiat spring clips having outstand- Vingendssecured to said panel, said clips having saddle members, spacers secured to said saddle members, bolts extending outwardly from said spacers, and a heat insulatingpanel having metal faces and secured by said' bolts to said spacers 5. In a partition structure,- a plurality of ber board panels arranged in a plane in substantial edge abutting relation, metal sheets'on the faces of said panels, flanges extending outward- 1y from said sheets, a sealing strip secured' to said flanges across the joint between adjacent panels, and a plurality of spring members resiliently supporting said panels. 1

` CARL HUssMAN.

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