US1178210A

US1178210A - Car-floor.

Info

Publication number: US1178210A
Application number: US86176114A
Authority: US
Inventors: Francis M Brinckerhoff
Original assignee: ELLCON Co
Current assignee: ELLCON Co
Priority date: 1914-09-15
Filing date: 1914-09-15
Publication date: 1916-04-04
Anticipated expiration: 1933-04-04

Description

. F. M. BRINCKERHOFF.

CAR FLOOR.

APPLICATloN FILED SEPT. 15. 1914.

Patented Apr. 4, 1916.

um'rED srarns Parana onirica.

FRNOIS M. BRINCKERHOFF, OF ENGLEWOOD, NEW JERSEY, ASSIGNOR TO TEEELLCON COMPANY, 0F NEW YORK, N. Y., A CORPORATION OF NEW YORK.

CAR-FLOOR.

Specification of Letters Patent.

Patented apr. a, 1ere.

Application led September 15, 1914. Serial No. 861,761.

` To all whom t may concern Be it known that I, FRANCIS MCFARLAN BRINCKERHOFF, a citizen of the United States, and a resident of the city of Englewood, Bergen county, State of New Jersey, have invented new and useful Improvements in Car-Floors, of which the following is a specication. .4

This invention relates broadly to railway car construction and particularly to a floor' thus tending to prevent the transmission of heat through the floor or wall construction.

Another object of this invention is to provide a fire proof car floor capable of withstandinof stress and vibration without separating the component parts thereof.

Another object of this invention is to provide a car floor with a relatively inelastic wear surface supported upon a relatively elastic sub-strata adapted to cushion lshocks and stresses.

A further object of this invention is to construct a car floor, or side wall, of fire proof material having a composition wear surface wherein the component parts inter- 'lock and are secured together to withstand stress and vibration without damaging or separating the various elements thereof.

A still further object of this invention is to produce a self-sustainingcar wall or fioor structure of great strength, and having the binding members embedded within the structure in such manner as to effectively bind the parts together and at the same time provide a smooth wear surface.

Still other and further objects of this invention will in part be obvious, and will in part be pointed out in the'speciication hereinafter following by reference to the accompanying drawings wherein like characters are used to represent like parts throughout the several figures thereof.

Figure 1 is a view showing a cross section Aof the preferred form of my invention wherein the attaching members are entirely concealed within the structure. Fig. 2 is a detailed perspective view. Fig. 3 is a View of my invention illustrating attaching members passing through one face of the floor. Steel being afgood conductor of heat has made it necessary to provide the walls of steel cars with heat insulation. To make the heat insulation most effective it should be in thel form of a continuous member or layer of the side wall or car floor. Furthermore in theconstruction of steel cars'it is desirable that as much as possible of the shops to produce a steel frame car having.

wood trimmings,.as compared with the production cfa steel car having no wood in its structure. To obviate difficulties various forms of side walls vand oors have been produced, including metallic structures.` A metallic side Wall or partition is a good conductor of heat and this causes a ear so constructed to be hot in summer and cold in winter, thereby requiring the use of some particular form of heat insulation, as a separate element. A metallic surface is not a desirable surface for a car floor, and a Wood iioor is not suitable for reasons above stated; and as a matter of fact under many conditions cars having anjr wood in their construction are absolutely prohibited from being used, as for example in subway systems. To solve the problem of car 'iioors various types of constructions have been devised, and experience shows the preferred construction to be some form of fire proof l composition supported by a metallic backing. A car floor or side wall is subjected to extreme vibrations and stresses in all directions. This being so, difiiculty has been found "in effectively securing the composite material to the metallic backing and at the same time also producing an effective heat insulation.

- My invention which will yhereinafter be described in detail, relates to a car side Wall, or more particularly to a car floor, lwherein the car floor comprises a metallic backing, carrying keystone anchoring members upon which rests a layer of heat insulation material and overI which is secured, by submerged securing devices, a facing, a Wear surface of composite material. The heat insulation in my invention comprises a continuous diaphragm of heat resisting material interposed between the metallic backing, or steel supporting members with its filling material, and the facing or hard Wearing surface. This type of construction is very effective in preventing the transmission of heat between the opposite faces of the car floor or Wall. The various parts are also so constructed and interlocked together that the heat insulating material forms a cushion which absorbs and takes up a large amount of the vibration stresses which heretofore have tended to break down structures of this character, and at the same time provides a backing or substrata of sufficient elasticity to maintain the parts in their proper relation. more my invention includes the use of means for tying together the keystone, or supporting strips, with the facing or Wear surface in such a manner that the Wear surface is substantially and effectively supported by the keystone members.

Referring more particularly to the drawings, the preferred form of my fioor or partition includes a supporting element comprising a corrugated steel plate l, preferably of the type known in the art as the Keystone The depending corrugations are preferably filled, With an inelastic filler, such as cement 2, up to at least the level of the upper surface of the adjacent corrugations, thereby making the upper part of the sub-Hoor substantially a level surface and providing the sub-Hoor With strips of supporting material of a keystone cross section interlocked in the metallic supporting element. Heat insulating material 4, is arranged to constitute the next layer of the floor and is securely attached to the supporting element by suitable means, which tie the Wear surface to the sub-floor. In my preferred form these means constitute screw bolts 5 Which pass through the heat insulation material and into nuts, which are embedded at predetermined intervals in the filler 2. The nuts may be of the cylindrical stepped type as is illustrated by the nut 6, or of the conical type as illustrated at 7, Fig. 1. In both cases it is preferable that Furtherthe exterior of the periphery of the nut be provided With outstanding ribs 8 to insure against rotation of the nut When the bolt is being screwed in position. The heads of the bolts are seated in dished Washers 9. Under certain conditions ordinary screws Without the nuts may be sufcient as a securin means, as for example, the screw illustratecgl as at 10, Fig. l. By the foregoing specified arrangement it will be noted that the heat linsulating material which may be hair felt, lime felt, fiax felt, or other suitable material, is securely attached to the filler, or anchor bars, of cement or composition, laid in the keystone corrugations. The Wear surface, preferably composed of suitable cementitious composition 3,- as for example, fiexolith, is spread over the heat insulating material 4 in a plastic state .and in such manner that it extends under the dished Washers 9 so that they are securely embedded therein. As the composition wear surface 3 hardens it securely grips the dished Washers and it will be noted that the entire Wear surface is then securely tied to the supporting element .by means of the submerged dished Washers and the securing bolts or screws. It will be seen that this construction produces a car Hoor of substantially a unitary structure, composed of several elements tiedtogether in such manner as to admit of sufficient flexibility and cushioning to preventv injurious effects due to shocks or vibration.

(Fig. 3 illustrates a modification of m structure, in which through bolts 11 termlnate in valleys 12 and are provided with nuts 14, which are 'seated against fiat Washers 15. In .this construction it Will be noted that the composition wear surface is securely tied to the supporting steel plate both by the keystone supporting ribs and by the through bolts 11, which pass through and support the valley portions of the sub-fioor member. This construction is very strong and is more especially adapted for car side construction Where great strength against lateral vibrations is demanded.

Having thus described my invention what I desire to claim is:

l. A car fioor structure of the character described including in combination a corrugated metal plate, across section of the corrugations comprising truncated triangles, cement strips filling the corrugations to provide asubstantially smooth surface, layers of heat insulation material upon said smooth surface, a composition cement facing covering said heat insulating material, screw bolt fastening members passing through said heat insulating material and into said cement strips, and anchoring devices within said composition cement facing and secured to said screw bolts to anchor said cement facing securely in position over the heat insulating material.

2. A car floor including in combination a corrugated metallic sub-Hoor, cement bars interlocked with said sub-Hoor and filling said corrugations to form a substantially smooth surface, a cushion of heat insulating material upon said smooth surface, a composition floor covering said heat insulating material, and fastening means having a portion submerged in said composition fioor and another portion secured in said cement bars.

3. In a car ioor in combination a metallic sub-floor provided with corrugations the cross section of which comprise truncated triangles; supporting strips filling the valleys on the upper sidel of said metallic subioor to produce substantially a smooth surface; heat insulating material covering said smooth surface, a composition cement floor resting on said heat insulation; and fastening means passing through said heat insulation, having one end thereof submerged in said cement filling and the other end thereof attached to said supporting strips.

4. A car floor including in combination a metallic sub-licor provided with corrugations adapted to form grooves having overhanging portions supporting strips Within said grooves and extending from Wall to Wall thereof, heat insulation material over said sub-oor, a composition Wear surface upon said heat insulation, and fastening means extending from Within said composition flooring and secured to said supporting strips.

5. A car fioor including in combination a metallic sub-licor, supporting members interlocked With said metallic sub-floor, heat insulation comprising a cushioning material over said supporting members and said sub floor, a composition Wear surface over said heat insulation material, and interlocking members for securing said composition wear surface to said supporting members.

6. A ca1` Hoor including in combination, a

metallic sub-Hoor provided With grooves of dovetailed cross section, interlocking strips substantially lilling certain of said grooves and extending from Wall to Wall thereof, a

fiat heat insulating diaphragm laid over said sub-oor and interlocking strips, a composition Wear surface supported on said heat insulating' diaphragm, and means secured to said interlocking strips and terminating within the Wear surface to secure the metallic sub-floor and the composition Wear surface together.

7. In a car construction in combination a corrugated sheet metal or Hoor member, Ineans filling certain of said corrugations, a hard Wearing surface, a continuous fiat diaphragm of heat insulating material between the sheet metal member and the Wear surface, and means to secure the said parts together.

8. In a car construction in combination a sheet metal or ioor member, a hard Wearing surface, a continuous iiat diaphragm of heat insulation between said sheet metal member and the Wearing surface, and fastening means interlocked with one surface of said steel supporting member and terminating beneath said Wearing surface to secure the parts together.

9. In acar floor in combination a steel supporting sheet, an upper hard Wearing surface, a substantially flat continuous diaphragm of heat insulation between the steel supporting sheet and the Wearing surface to prevent the transmission of heat through the said door, and fastening means interlocked with one surface of said steel supporting member and terminating beneath said Wearing surface to secure the parts together.

10. In a car construction in combination a sheet metal member formed with corrugations, a filler filling the corrugations on one side of said sheet, a relatively thick cushion extending over the filler to provide a relatively elastic layer of material, a composition Wear surface covering said cushion and securing means extending between said sheet and said Wear surface and passing through said cushion.

renners M. namensnnorr.

Witnesses:

GEORGE W. RAMSEY, FRANCES MCCANN.