US1846138A - Template - Google Patents

Description

R. J. MOORE Feb. 23, 1932.

TEMPLATE Filed April 2. 1930 Patented Feb. 23, 1932 UNITED STATES RICHARD J. MOORE, OF EAST ST. LOUIS, `IIIZJLINQIS i TEMPIATE Application mea prix a, 1930. `sensu im. 441,020.

rIhis invention relates to templates and more particularly to a template for use in road construction for the purpose of giving a proper contour to the concrete surface of a highway.

The chief object of this invention is to provide an efficient and economical device for smoothing down and giving the proper contour to the surface of a concrete road.

Other objects and advantages of this invention will be disclosed in the specification, claims and drawings, in which:

Fig. 1 is a front elevation of the template superimposed on a cross-section of a concrete road.

Fig. 2 is a plan view of the device.

F ig. 8 is a cross-section of Fig. 2 along the line 3*-3 in Fig. 2. i

Fig. 4 is a cross-section of a portion of a concrete road showing in enlarged detail one side of the device.

Fig. 5 is a similar view to Fig. 4, showing the device in a different position.

In building concrete roads it is the custom 25 to provide a crown in the center of the road varying in elevation according to the width of the road. It is, also, customary to face the edges of the road with suitable metal facing, usually some form of angle steel.

flat surface of proper curvature, it is necessary to plane down or strike off the concrete to give it proper contour, while the concrete is still in a plastic condition. Heretofore this function has been performed by hand, and in order to expedite this work and provide an absolutely uniform contour to the surface of the road, I have devised the present invention.

The preferred method of construction of my device provides for a transverse beam 1 preferably fabricated from two angle bars 2, between which are bolted flat iron or steel bars. The bars 3 are supported by the angle bars 2 in such a manner that they will lie at an angle to the straight angle bars 2, f

the degreeof angularity depending upon the amount of crown given to road. This is inindicated by the dotted lines 4 in Fig. 1.

In order that the road present a smooth,

The transverse beam 1 when in use is sup# ported at each end bythe angle steel facings 5 which' face the edges of the road. Near each end off the transverse beam "1, identical levers 6 having curved lower ends 7, are piv- 55 otally joined at 8 to the transverse bar `l uand pivotally `connected at 9 to the transverse rod 10, which maybe providedwith a turn buckle `11 to permit `suitable "adjustments `When the`concrete`12 has beenlpured and 60 filled Vin the roper depth between the facings 5, and w ile itis still in a plasticcondition, the transverse beam 1, being supported on top ofthe facing, asbest shown in Fig. 1,

is drawn longitudinally forward bymeans 66 y of suitable cables 13`whioh may befattached to a tractor or other suitable motive power.

The transverse movement `ofthe template is manually regulated and controlled within y narrow "limits, usually from two to `three rm inches, by the levers 6 operated by one man walking on either side ofthe road. l `The'lower outside portionof `thelevers 6 contact with the inner" upper facing 5 sothat the movement of ,either one of the leversshift the1 cross beam longitudinally, one o r the other of the levers being always in contact with one side of the facing.

It is obvious that the crown of the road may always be centrally located in spite of 8U the longitudinal curvature of the road or the direction of pull on the cables 13.

It is, therefore, evident that not only will the crown of the road be properly centered, l 1 but the entire surface of the road will be uniform throughout its length.

While the members 3, as shown in Fig. 1 of the drawings, are bolted to the side members 2 of the transverse beam, I wish it understood that the vertical position of these members 9U can be raised or lowered by simply drilling additional holes through the members 3 so that the surface of the concrete may be struck olf at any desired depth. As shown in Fig. 1, the surface of the road is being struck olf approximately 2 inches below the upper surace when completed for the purpose of providing a smooth surface for the wire netting reinforcement.

Having fully described my invention, what m0' i2 Y o 1 Y y 1,846,138

I claim as new and useful and desire to protect b Letters Patent is:

1. n improvement in templates of the class described comprising, a cross beam 5 fabricated of two angle irons joined together,

a fiat bar aiiixed between said angle irons so that the longitudinal axesof said .bar and said angle `lirons lie at an angle tofeachfother, vertically disposed Alevers pivotally joined through the ends of said beam, Vthe lower ends of said levers Ibeingcur-ve'l Jto fado'p't" them to contact with the inner surfaces of the metal facing of a concrete road, a tie Tod f having one of its ends ,pivotally attached to n the other said lever wherebyla parallelism is .maintained between said '1e-vers whenrzeither Y one ,is 'rotated :about its-pivotalipoint, said tie rod consisting of two members vjoined :together b y ia .tu-rn buckle for maintaining-said levers in parallel relations -to each other.

2. An fimprovement in -teniplatesipfor surfacing Yconcrete roadways, of the class described, comprising fa beam fabricated from a plurality fof metal anglesand Lplates longiftulinally `joined :together so that the longitudinailaxeszoftheangles will lieat an angle to the :longitudinal `axes of the plates, lthe said .angles .being longer than the :said `,plates andfs'o joinedthereto that .the said angles will project beyond the said plates lat both ends, 'said Iprojecting--end-sgof Asaid angles having smooth iat lundensurfaces:adaptingthem,to c 'f slidabl'y rmove Yalong l.the ripper-surfaces of ymovable metal fside forms, said metal ,plates .depending lfromgsaid angles nand being lof slightly lesslength than the width of 'the' vroadway between :said `side forms yto ,permit a limited lateral movementof said fabricated beam when :moved longitudinally -of .said

49 roadway. I

. -In ,witness whereof :I have lhereuntoiiixed my signature this lthiday .of March, 1930. RICHARD ,J. MOORE.

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