US1522582A

US1522582A - Device for building a colored marking strip in the surface of a concrete road

Info

Publication number: US1522582A
Application number: US719642A
Authority: US
Inventors: Albert T Goldbeck
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-06-12
Filing date: 1924-06-12
Publication date: 1925-01-13
Anticipated expiration: 1942-01-13

Description

' A. T. GOLDBECK DEVICE FOR BUILDING A COLORED MARKING STRIP IN THE SURFACE OF A CONCRETE ROAD Filed June 12, 1924 InVen to Attorney Patented Jan. 13, 1925.

UNITED STATES ALBERT T. GOLDBECK, OF WASHINGTON,

DISTRICT OF COLUMBIA, DEDICATED, IBY

MESNE ASSIGNMENTS, TO THE CITIZENS OF THE UNITED STATES.

DEVICE FOR BUILDING A COLORED MARKING STRIP IN THE SURFACE OF A QO'NCRETE ROAD.

Application filed June 12, 1924. Serial No.'719,642.

(FILED UNDER THE ACT OF MARCH 3, 1883; 22 STAT. L. 625.)

To all whom it may concern Be it known that I, ALBERT T. GOLDBECK, a citizen of the United States of America, and an employee of the United States Department of Agriculture, residing in the city of Washington, District of Columbia, have invented an Improved Device for Building a Colored Marking Strip in the Surface of a Concrete Road. z

This application is made under the act of March 3, 1883, chapter 143 (22 Stat. 625) and the invention herein described and claimed may be used by the Government of the United States or'any of its oflicers or employees in the prosecution of work for the Government, or by any citizen of the United States, without payment to me of any royalty thereon.

It has been found that by marking a line on the center of a road surfacing it has the effect of keeping trafiic on the proper side of the road thereby promoting safety particularly near the tops of hills and on curves. In the past this marking has been produced by painting a line on the road surface. In the use of the present device it is contemplated thatthe marking will be built into and made an integral part of the concrete surfacing.

The drawing consists of four figures, Figure 1 is a plan View of the invention. Figure 2 is an end elevation, Figure 3 a partial side elevation and Figure 4 a detail of one of the essential parts.

The device consists essentially of a wheel A which rolls on the concrete road surface after the surface has been struck off and finished by the ordinary hand or machine finishing methods. Wheel A is regulated in height by hand-wheel B and as it rolls it produces an indented track in the concrete road surface of any depth desired. Immediately following A is hopper C containing helical screw'D and ending at bottom in spout E having openin F whose size may be regulated. Immediately following hopper C is finishing device G which may consist ofa roller operated by chain drive either with or against the direction of motion or held stationary as desired. Wheel G may also be replaced by finishing float or belt if desired or used in combination with same. The

height of the finishing device is regulated by hand-Wheel W.

The above described apparatus is mounted on a platform H having transverse inverted channel sections I at front and back edges which rest on I-beams J, the under sides of which are fastened to tube bearings K which hold axles L upon which flanged wheels M are mounted. These wheels run on the side forms N used in concrete road construction. As it is common practice to gradually increase the width of aconcrete road on a horizontal curve and as it is desirable to keep the marking line or so-called traflic strip in the center of the road it has been necessary to provide means for maintaining the above described equipment which is mounted on the center line of the platform, immediately above the center line of the road, no matter what the width of the road might be, within limits of change in width ordinarily made.

This is accomplished as follows: When the road is of constant width catch 0 bears against collar P fastened to axle L thus holding the wheels M in a fixed lateral position with respect to the center line of I-beam J. Four such catches, O, are provided, two on each side of the machine.

Attached to longitudinal frame member Q is lever R, the center of which is fastened to platform H and the end of which is fastened to member S by-1adjustable rod T. Platform H may thus be adjusted to the exact center of the road or to other positions if desired. In rounding a curve, catches O on one side of the device are placed in the release position shown by dotted line, while the catches on the other side are maintained in a locked position. As the side forms become wider apart, wheels M on one side of the machine move outward, axle L being capable of sliding in bearing K. In view of the lever attachment just described platform I-I moves laterally one-half of the lateral moveme'rrt't'aken by the wheels on one side of the machine and in this manner the center of platform H'is maintained directly over the center-of the roadway. As the width of the road becomes narrower, springs V maintain the flanges of wheels M in constant contact with side forms N thus also maintaining center line of platform H over center line of road.

In practice the hopper'is filled with mortar preferably made of white cement and sand. The operator turns crank U; this, through chain drives operates helical screw D, and at the same time, through chain drives to one of the wheels M slowly advances the entire machine. Wheel A indents the soft concrete road surfacing, which indentation ,is then filled with white mortar from spout E and finished to proper surface by finishing device G.

' I claimL 1 An apparatus for building a marking strip in the surface of a concrete road, consisting of an adjustable-wheel for indenting the surface of the roadway, a hopper and spout device for filling the indented surface with mortar, a roller for smoothing the filled surface, and a bridge which may be automatically spaced over any part of the roadway to support said Wheel, hopper and spout roller.

ALBERT T. GOLDBECK.