US1318332A - Tback fob eo ad ways - Google Patents

Description

l. C. SCHRICKER.

TRACK FOR ROADWAYS.

APPLlcAlou man JULY 2a. |919.

E. ,3 18,332, Patented Oct. 7,1919.

Aproved track.

'narra sraA carica.

TRACK FOB ROADWAYS.

Specification of Letters Batent.

Patented Oct. '7, 1919.

`App1icaton filed July 23, 1919. Serial No. 312,703.

To all whom t may concern:

Be it known that I, JOHN C. SGHRICKER, a citizen of the United States, and a resident of Davenport, in the countyv of Scott and State of Iowa, have invented certain new andv useful Improvements in lTracks for Roadways; and I ldo hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in tracks for roadways and the like and consists of the matters hereinafter described and more particularly pointed out in the appended claims.

The object of the invention is to provide an eflicient and durable vtrack for the traffic lines of roadways upon which may run the tread of vehicle wheels. l

This vobject together with the various advantages of the invention will be made more apparent as I proceed with my specification.

In the drawings Figure l illustrates a cross section through a roadway to which my improved track has been applied.

Fig. 2 illustrates a longitudinal section through one of the tracks, the plane of the sectionbeing indicated by the line 2 2 of Fig. 1.

Fig. 3 'illustrates av transverse section through one of the tracks, the plane ofthe section being indicated byV the .line 3-3 of F ig. 2.

Fig. 4; illustrates a perspective view of a block forming a sectional part of the im- Referring now in detail to that embodi-y ment of the invention, illustrated' in the accompanying drawings :-`5 indicates as a whole, an arched roadway which may be paved or unpaved, and 6 indicates my improved tracks embedded therein. The said itracks extend longitudinally of the roadway and are spaced apart a distance equal to the wheel gage of standard vehicles.

Each track 6 is made up of a plurality of sections in the form of elongated blocks 7 placed in overlapping end to end arrangement, the ends of said blocks having interlocking parts to prevent lateral displacement. In Fig. a' I have shown a perspective view of one of said blocks which I preferably make of reinforced concrete or other suitable material. As all the blocks are similar in shape, a detailed description of one willsuiiice.

They block 7 is preferably rectangular in form, of a length greater than its width and of a thickness less than said width. At one end, on the top side of said block, is an extension 8, and at the other end of the bottomv side of said block is an extension 9 which is adapted to be overlapped by the extension 8, of an adjacent abutting block 7. In the top surface of the bottom extension 9 is provided a longitudinally arranged groove l0, in which a rib 11 on the overlapping top extension of the adjacent block 7 is adapted to engage. By this construction, that part of the extension 9 and S respectively, defining the side walls of the groove l() and rib 1l, provide co-acting shoulders which lock the lapping extensions together against lateral movement, so that the blocks in the track will always be in alinement.

Preferably, I provide in the top surface of each block, a longitudinal concavity or shallow groove l2, in which vehicle wheels will travel and be guided against ruiming olftlie track. Also, for the purpose of drainage, so as to prevent the accumulation of water in the grooves 12, .I provide at the middle and on each side of the top of each block, transverse grooves 13 which open into said grooves l2.

To insure strength against breakage, I reinforce each block with metal inthe form of a woven or expanded metal mat 14, which, as shown in Fig. 2, extends from the middle of the top extension 8, obliquely downward through the'body of the block and into the middle of the bottom extension 9. This mat which is entirely embedded in the block,v is invisible upon observation of an individual block and provides a maximum of tensile strength for each block, so that it withstands all stresses imposed upon. it when in use for its intended purpose.

In laying the blocks end to end, to form a track, I preferably apply to the engaging surfaces of the overlapping extensions, a joint filler of a pitchy on tarry mixture, as shown at 15 in Fig. 2 and Fig. 3, which holds the blocks together in an end to end position with respect to each other, and allows for the expansion and contraction of the lieaval of the blocks due to atmospheric changes. Y

A track made up of my improved blockS, possesses many advantages. It may 'beuse in connection with either macadamizped or gravel roads, and is'pr'actical and ecnmical for its intended purpose.vr It, eliminates ruts and chug holes that provide undue pounding and L'vibration wear in vehicles, and as the blocks making upthe track are easy I to lay yin place, the oost of construction is but a small part of that of a fully-paved` each block having endvextensions, the end extension on one block belngadapted to overlap therend extension on the abutting block, said extensions having interengaging parts adapted to lock said blocks against lateral movementbut permittingof an endwise expansive and contractile movement.

2. A trackfora roadway comprising, a plurality of blocks arranged end to end, each block having end extensions, the4 end extension on oneblock being` adapted to overlap the end extension onthe abutting block, saidv end `lextensions having interengaging parts adapted to locksaidblocks against lateral movement, but 4permitting of an endwise expansive and contractile movement of said blocks, each block. having a longitudinal groove in its top surface which forms a continuation of a like Agroove in the abutting` blocks.

8. A Vtrack fora roadway comprising, a

plurality of block s^ arrangedend to end, each block havingvend extensions, the end extension on onev block` being adapted to overlap the end extension on the, abutting block, said end extensions having inter- Gopis ofwtlii's patent inaykbeioltaine'fr engaging liffarts 'adapted to lock said yblocks against lateralmovement, bu-t permitting of ian* endvvisel expansive' 'and contractile movement of Asaid blocks, each block having a longitudinal groove in its top surface which 'forms av continuation of like grooves in the blocks, and having -tia's've'se grooves atA their `,middle which open into said longitudinal grooves.

l. A track fora roadway,comprisi1g,aplurality .1015 'blocks' arranged .end to end, each block having; end-extensions, the-fend extension of one block bei-ng, adapted-to overlap the end extensionon the abutting block,l l 'said end ,extensions havingA interengagingy .parts adapted to lock s aidfblocks against lateral ,movemerrav and reinforcing means embedded in said fblockandjextending from one-tothe otherextension thereof. Y n

5. A'b-lock forthje purpose describedQ-cQm-` prising a rectangularbody havinga-shaliow groove in its top surface and"Y a `.topi extensionvat one 'end and, a bottom i, extensiony at its other end, the said top extensionbeing adapted to overlap the bottom extension fof an abutting block, one of Asaid extensions having aA groove vand the other of said extensions' having. rib, 'the rib? J0.11 @iwi extension being adapted to engagefin the groove in the other extension'of an abutting block.

`6. A block for the 7purpose described, comprising `a rectangular body having-a shallow groove in itstopsurface, land a topy extension at one end and a bottom extensionjat its other end, the top extension' having a ribvon its *bottom surface, which is adapted. to :en-

gage in a groove in the top surface'gof a.v bottom extensiongwhen apluralfity jof said blocks are arrang-lied to endin abut'ting relation, v and ajreinforcing'metallic 'mat in said block, extending obliquely throughfsaid body. and into said end extensions yat their middle.

In 'esfmeyxt1ia @ein a@ te?eg-'QingY as my invention, I affix my signature in thek presence :of two, witnesses, this 18th day 'of July, A. D. 1919.

Vit/nssesz., i y i CARL LAMBAC'H", VERA LISCHER.

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