US468355A - George s - Google Patents

Description

(NOMOCEW G s MAYHBW COMPOSITION MATERIAL.

No. 468,355. Patnted Feb. 9, 1892.

Ger/ye /y v 9,

...2: llii Y all as hereinafter described, 'and l I .STATES PATENT OEEICE. I

' GEORGE s. MAYHEW, OE MINNEAPOLIS, MINNESOTA, ASSIGNOR 'ro CHARLES A. SMITH, OE SAME PLAGE.

l CUMPOSITIIQN MATEVRlAL..

SPEGIFICATIONforming part of Letters Patent No. 468,355, dated February 9, 1892. I Application filed August 15, 1891- Serial No. 402,717. (No specimens.)

'To all whom it may concern.-

, Be it known that l, GEORGE S. MAYHEW, of Minneapolis, inthe county of Hennepin and State of Minnesotahave invented an Improved lComposition Material, of which` the 4following is a specification.

My invention relates toa novel material for use in building houses, railway-cars, and in many other departments of building and manufacture.

rllhe object of myinvention is to provide a simple andcheap composition material capable of being made up in large sheets, which' sheets may be givenV during the process of manufacture a curved, an angular, or a fiatk shape, as best suited to the use to which the material is to be put, the latter being the most common. A e

The further object is to provide a composite board or slab which may be worked into any convenient shape with ordinary carpenters tools, while at the same time possessing the properties of strength, rigidity, and of durability, and which will not Warp or shrink.

` "With these objects in View my invention consists-in a composition material made upof Sheets or pieces of straw or other pulp board 'y and strips or slats of woodinterposed and secured togetheir and between said sheets by an adhesivey compound .whichjvhen dried, forms a hard. inflexible and-inelastic connection between the parts,.whereby astianddurable composite board is produced; in a composition'material constructed as above, with the exception that either the said paper-board orv the said adhesive compound, or both, are pre- -'viously prepared and adapted/to make the finished `composition material fire or water proof, or both, as required; in a method of manufacturing said material in which the sameis subjected to heavypressure' and to a drying process, whereby the material is givenl a final firmness, solidity, and rigidity which -it is impossible .to obtain in any other way;

in` adaptingsueh material to `use in flat,r or

particularly pointed out' in the claims. v g .My invention will be more readily underpaper.

uponthe same.'

4portions of the same being broken away to 55 more clearly show Athe construction or composition thereof. Fig. 2 is a cross-sectionof a 'piece of' my material, showing large wooden strips arranged between two sheets of thick" Fig. 3 showsa wall and ceiling cove 6o constructed of my material. Y

, The general and simplest form of my composition material is shown in detail in Fig. l, Where 2 represents thev first layer or sheet of thickstraw or other pulp` board. In the pro- 65 cess of manufacture the upper surface of this sheet 2 is covered with a layer or thick coat 3 of adhesive compound, which compound is made up orignally of an adhesive material "which has been previously dissolved and then 7o `ticity and flexibility. Immediately after the coat of adhesive compound is applied tothe sheet 2 and while the compound is still soft and before it' sets or hardens the narrow Wooden strips or slats are laid close together 8o This body layer or course of wooden slats 4 is next covered or coatedwith a layer or coat 5 of the same adhesive compound, care being taken before or after orat the time the slats are .laid in position to force 85 thecmpound into all parts of the cracks or openings 6 between the slats and into all cracks or openings or recesses therein to thor- A oughly and completely fill the same. Immediately after this coatof compound is ap- 9o plied the other and second sheet 7, made up of material the same as or sirrilarV tothat of the sheet 2, is placed on the slats and the e whole composite slab thus formed in then subjected to a heavy and equal pressure 95 adapted to force theparts firmly together.

Thispressure suddenly applied forces the adhesive compound into every crack or recess between or in the slats and paper, and in fact into the soft wood and into the thick paper, x00

and the greater proportion of the solvent employed in the adhesive compound is forcibly disseminated into and absorbed by the wood and the thick porous paper, thus greatlyv hastening the 'final setting or hardening ofv the adhesive compound, and thereby the rigid connectioniof the parts. The setting of the v adhesive compound is thus forced and made ready for use.

. ous, strong, inflexible, and durable board,

practically instantaneous, thereby rendering the manufacture of the material speedy and convenient. The firm board so formed is now' more thoroughly and finally dried, and is then v The care which is exercised to 'insure the thorough and complete filling of all cracks, openings, depressions, or recesses between and in the several parts, and the application of the same to solidify the whole, result in the production of a piece ofcomposition maferial constituting in reality one homogenethe component parts of which are thereafter practically inseparable. Y So long as the standard rigidity and inflexibility is maintained the thickness and weight of these boards may be varied to almostv any extent by the employment in their manufacture of wood strips and of paper-board of thevarious thicknesses, andtherewith the revof very heavy pressure after the assembling quired amount of `the adhesive compound,

of theboards are only limited in extent byL the lengthY in which lumber can be cut and handled, and the size in which the pulp-board can be made. YThe wood and paper employed being comparatively soft, and the dry adhesive compound, though hard and stony, being in thin layers or plates, and therefore readily broken,4 the composition material may be easily and cheaply worked with ordinary tools. My composition boards therefore, possessing, as they do, any required size and a density about equal to that of wood and a strength in many cases greater'than wood, are not only suitable for use in place thereof, but preferable to wood, for the reason that my composition boards are free from theobjectionable tendency of natural boards to warp, shrink, bulge, and split. Further, the straw,

' wood, or other pulp paper forming the sides of the boards readily admits of the applica-r tion thereto of any ornamental or decorative or preservative substance or article, thereby especially adapting the material to any of the' uses known to the building` or decorative art.

As commonly manufactured, an adhesive compound composed of a solvent, glue and Whiting. plaster-of-paris, or clay is employed to weld the parts of the board together. This compound in itself -is neither fire nor Water proof; butby employing in placethereof acompound possessing in itself fire or water proof properties, or'both, my composition material may be made to possess those'qualities. For

instance, in the manufacture of water-proof preferably use a compound made up of clay or ofthe Whiting or plast-erof-paris above mentioned and dextrine and creosote.

paperA employed ireor water proof, or both, initself. For example, fire-proof paper suit- The sameI result may be attained by constituting the'` able for this use maybe made by agthorough saturation of the pulp-board with oil of creo-4 sote or any of thev silicates,`whileV the same paper may be made water-proof by soaking vit thoroughly in oil, the paper in each case being thoroughly dried before usein the..

manufacture of the board.

eral ingredient which gives to the same when .dry the hardz iniexible stony character, the

and paper maybe used up inthe manufacture of the board; for the joints between the pieces are really stronger than the other parts of the boards.

One ofthe great advantages accruing from the use of the narrow slips is that the material may be made up originally in practically any curved or angular form, and when dry will be retained in form by the hard material Vwedged in between the strips.

One of t-he most valuable forms in which^I- have constructed my boards is that of a cove for use between the wall and ceiling of vau is shownv in this figure, may be secured in the l It will be seen that all of the various Icom- I pounds have in common the earthyor min-"85` angle between ,the wall 9 and the' ceiling 10 Yby kan y suitable means'.

- claim as new and desire to secure by Letters Patentv l, A composition material composed of a body of wooden strips or slats arranged edge to edge and rigidly cemented together, and thick sheets of straw orother pulp board rigidly cemented on opposite sides of said body,

whereby a single strong, rigid, and infiexible' composite board is formed, substantially as described.

2. A composition material composed of a bodyT of parallel slats or strips, sheets of thick straw or other pulp board arranged on the sides of said body, and an adhesive compound interposed between said slats and -between the same and said sheets of paper and form- 4 The mblding-strips 4ll and l2, secured to the wall and ceiling, and

ing when dry a hard substance rigidly conf necting said parts, the whole forming a rigid inflexible homogeneous material, substantially as described.

3. A rigid and inflexible composition material composed of a body of parallel wooden slats, thick sheets of paper board arranged on the sides of said body, and an adhesive compound interposed between and connecting said slatstogether and with said paperboards, substantially as described.

1i. A rigid and inflexible composition material composed of a layer or body of parallel wooden slats or strips, sheets of thick paperboard arranged upon the sides of said strips,

vand said strips and paper being rigidly cemented together by an adhesive compound which when dry is of a hard inexible character, substantially as described. i

5.' A rigid and inflexible composition material composed of a layer or body of parallel wooden slats, sheets of thick paper or other pulp board on the side of said body, and an adhesive compound having an earthy or mineral ingredient and interposed and dried between said slats and betweenthe slats and said board, substantially as described.

6. t A rigid and infiexible composition composed of a body or layer of narrow parallel wooden slats or strips, two equally strong sheets of heavy paper-board arranged on the sides of saidbody, and an adhesive compound interposed between and adapted to rigidly cement said slats and the slats and said sheets together, said compoundhaving an earthyor mineral ingredient adapted to give the same a hard stony character when desired', substantially as described.

.7. A rigid inflexible composition material composed of a layer or course of wood strips, thick paper facings therefor, andan adhesive compound interposed between the same and between said strips, said compound possessing in itself fire-proof properties, substantially as described.

8. A rigid infiexible composition material composed 'of a layer or course of wood strips', 4

thick paper facings therefor, and an adhesive compound interposed between the same and between vsaid strips, said compound possessing in itself water-proof properties, substantially as described. l

9. A rigid and inflexible composition material composed of a layer orcourse of wooden slats `or strips,- thick paper facings therefor, and an adhesive compound interposed between the same and between said strips, said compoundpossessing in itself fire and water proof properties, substantially as described.

, 10. A rigid and inflexible composition material composed of a layer or body ofA wooden slats or strips, sheets of thick pulp-board arranged on the sides of said body, and an adhesive compound interposed between said sheets and entirely surrounding each of said pulpstrips, said pulp-board having in itself fireproofproperties, substantially as described. l" 11. Arigid and inflexible composition'material composed of a layer or body of wooden slats or strips, sheets of thick pulp-board arranged on the sides of said body, and an adhesive compound interposed .between said sheets andentirely surrounding each of said .sheets of paper-board embracing the same,

and an adhesive compound possessing an earthy or mineral ingredient and interposed between said parts, the whole being subjected to heavy pressure while the said compound is still soft, whereby thematerial is solidified andfrendered durable and inflexible, substantially as described.

14.-. The process of manufacturing rigid inflexible material, which consists in arranging between thick sheets of paper or other pulp board parallel slats or strips, interposing between` those parts an adhesive compound adapted to assume a hard infiexible charac- IOO ter when dried and subjecting the whole to heavy pressure, whereby the same is made solid and inflexible and the setting of the compound hastened, substantially as described.

15. The process of' manufacturing arigid and inexible composition material, .which los consists in arranging a layer or body of parallel narrow wooden slats or stripsbetween said strips and the sameand said sheets an adhesive compound having an earthy or mineral ingredient, then forcing said parts tov gether and thus disseminating the compoundv and the solvent thereof between and into said .sheets of thick paper or other pulp board, and during the operation interposing between parts, and finally dryinggthe product, sub- 'stantially as and for the purposes specified.

'16.. The combination, with the thick sheets of paper, of thel wood slats arranged between the same and secured together and thereto by an adhesive compound having an earthyingredient, the whole being formed into a cove during manufacture, substantially as described.4 In testimony whereof I have affixed my sgnaturein presence of two witnesses.

.. .GEORGE S. MAYHEW.

Witnesses:

EWELL A, DICK, C. G; HAWLEY.

Images