US2076370A

US2076370A - Road marking combine

Info

Publication number: US2076370A
Application number: US675964A
Authority: US
Inventors: Everett H Hollingshead
Original assignee: ROAD STRIPING Inc
Current assignee: ROAD STRIPING Inc
Priority date: 1933-06-15
Filing date: 1933-06-15
Publication date: 1937-04-06
Anticipated expiration: 1954-04-06

Description

April 6, 1937. E H, HOLNGSHEAD I 2,076,370

ROAD MARKING coMB-INE April. 6, 1937- E. H. HoLLlNGsH-EAD I 2,076,370

ROAD MARKING COMB INE Filed June l5, 1935 2 Sheets-Shea?I 2 E HHOLLINGHEAD G gon/vento@ aum/wai@ Patented Apr. 6, 1937 ROAD MARKING COMBINE Everett H. Hollingshead, Dayton, '.lex., as'signor to Road Striping, Inc., Houston, Tex., a corporation of Texas Application June 15, 1933, Serial No. 675,964

llclaims. (Cl. 91-13) The invention relates to an improvement in road marking machines of the general type shown and described in my prior Patent No. 1,726,832, and is particularly directed to a combination of mechanisms which permit the complete preparation of the surface for receiving the mark and conditioning the mark for service.

One of the objects of the invention is to provide a road marking combine capable of cleaning the road surface, and preparing such surface to receive the marking material and to then condition the marked area so that it. is ready for service, all in a single operation.

Another object of the invention is to provide a road cleaning device wherein the surface is brushed and the loosened material removed atthe same time that a liquid solvent is applied to the surface.'

Another object of the invention is to apply a solvent to the road surface directly preceding the application of the marking material so that the marking material placed adjacent the surface will be dissolved and a more perfect bond will be created between the material' and the road surface upon evaporation of the solvent.

Another object of the invention is to provide a machine wherein the road surface will be brushed, dusted and a solvent applied directly preceding the placing of the marking material.

Another object of the invention is to provide a road marking machine wherein the operative parts which contact the road are in position outboard of the machine and are supported by an independent carriage.

Another object'of the invention is to provide a combination outboard steering and operating attachment for vehicles so that the same may be converted into a road marking machine.

Other and further objects of the invention will be readily apparent when the following description is considered in connection with the accompanying drawings, wherein Figure 1 is a top plan View1 of a diagrammatic illustration of the invention, showingr the relative arrangement of the parts;

Figure 2 is a side elevation looking at that side of the vehicle to which the mechanisms have been applied;

Figure 3 shows a detailed construction, illustrating the manner in which the marking shoe is carried by its supporting carriage.

In Figure 1 the reference character 2 indicates generally a standard type of vehicle, such as a small truck. It is contemplated that various receptacles will be mounted upon this truck to carry supplies of the material which are to be used during the marking of the road. One such receptacle is indicated at 3 land is adapted to contain a supply of solvent to b e used in preparing the road for the marking material. Another receptacle is 5 shown at 4, which is adapted to contain a supply of marking material, whereas, the receptacle 5 carries a supply of dusting material, such as sand or other suitable substance, which may be used to surface the marking material in preparing it for service. Thereceptacle 6 carries a supply of fuel for the burners, which heat the marking material.

The vehicle 2 has positioned on the front thereof a suitable bumper .or other construction I0, which serves as a. support for the arm Il. This arm is maintained in transversely extended position by a brace I2, which is suitably connected to the vehicle. The arm Il has pivotallyconnected therewith a yoke H, which extends rearwardly alongside the vehicle, and is connected to a carriage I5', which is in turn arranged to travel along with the vehicle on the left-hand side thereof, as viewed in Figure 1. This carriage I5 is arranged to support different parts of the combine structure, as will be later described. f

In the marking of trafllc lanes on modern highways, it is desirable to prepare the surface to receive the marking material in the best possible manner. It is usual that a considerable amount 30 of dust and dirt are present on the road surface, and to increase the life of the mark to be placed on the road, it is absolutely essential that this dust and dirt be removed from the surface before the marking material is applied. It has been found that if a small quantity of dust or dirt is present upon the surface that the bond between themarklng material and the road is materially affected, and the marking material is soon carried away bythe friction of the moving vehicles. 40 With these points in mind the present road marking combine contemplates the provision of a rotary brush 20. This brush may be positioned either on the vehicle, as lndicated in the drawings, r upon the carriage I5. In either event, it 45 is properly supported by a bracket 21 so that the roller or brush 22 vis rotatably carried by the bracket. As seen in Figure 1, the bracket 2l serves as the bearing or support for the shaft 22, upon which the brush 22 is mounted. 50

This shaft is preferably driven by means of a drive chain or belt 24, which receives its power from a jack shaft 25 carried by the vehicle chassis. This jack shaft 25 may in turn be driven by the connection 26 from the transmission 21 of the marking operation. A handle 28 is provided fory this purpose and has a plurality of openings 29 formed therein so that the handle may be attached to the vehicle at different elevations to hold the brush away from the road. When it is desired to use the brush, the handle 28 will be released and the brush will be held in contact to the road due to the force of gravity and be compelled to rotate at relatively high rates of speed by the connection of the drive shaft 25.

It has been found that where a brush ls used on the road surface prior to applying the marking material that a considerable portion of the dust loosened by the brush remains on the surface or settles on the surface before the marking material can be applied. y

With a view of eliminating this objection by removing the loosened dust, a blower device has been provided. This blower is indicated generally at 32, and is preferably carried by the vehicle 2.

The blower is in the form of a rotor, which isv driven by the chain 33 yalso connected to the jack shaft 25. `The outlet of the blower is indicated at 34, and is directed to a position directly behind the brush 22 so that a stream of air will be directed against the road surface with a view of driving the particles of dust from the surface. It is contemplated that the direction of theair i' stream may be reversed, if desired, and a suction created Within the discharge pipe 34 so that the dust will be sucked into the pipe, and in this manner completely eliminated. In the event this arrangement is practiced, a suitable receptacle will be provided for the accumulated dust, or the same may be blown out from the rear of the vehicle where it will not affect the cleaned surface. It should be noted that the pipe 34 is closely adjacent the brush 22 and that both of these mechanisms are considerably in advance of the remaining parts of the machine.

The carriage I5 is provided with the front wheels 40, which may carry a suitable support for the pipe 34, or the pipe 34 may be supported directly from the vehicle. The marking shoe, indicated generally at 42, is entirely supported by the carriage I5 so that the weight of the shoe will be available to maintain it in contact with the 'road vsurface and prevent the dischargeof excessive amounts of marking material. In order that this may be accomplished, the marking shoe has attached thereto the rear wheels 43 of the carriage I5. These wheels are positioned on an axle, whichis in turnconnected to the bars 44. These bars are rigidly fixed to the shoe housing 45. The pull necessary to move the housing forward is made through a pull rod 46, which is pivcted to the carriage I5 at 41. This rod 46 is adjustable by means of telescoping pipes v48, and may be adjusted by the collar and setscrew 49. It will be apparent that the housing 45 is free to move vertically in accordance with variations of the roads surface, due to the pivotal connection at 41, and telescopes upon the feed pipe 56, through which the marking material discharges Afrom the receptacle 4. The wheel 43 merely serves as a follower, and will only take a small proportion of the weight, or no weight at all, dependent upon the respective elevations of the The detailed construction of the shoe is best seen in my co-pending application, Serial No. 459,890, illed June 9, 1930, which has resulted in Patent 1,990,545, granted February 12, 1,935, but in the present invention, certain improvements have been made in the shoe, one of which includes the positioning of a pipe, such as 5I, adjacent the shoe frame 52. This pipe 5I is connected'to the tank 3, which contains a supply of suitable liquid, which is preferably a solvent for the marking material to be discharged from the shoe. The pipe 5I leads downwardly toward the surface directly in advance of the marking shoe, and the flow of liquid therefrom is controlled by means of a valve 53, which is provided with a remote control handle 54, which will be later explained.

It is contemplated that the brush 22 and the blow pipe 34 will clean the road surface so that it is in condition to receive the marking material. However, it has been found of advantage to spray or moisten the surface of the road with a solvent material Ydirectly preceding the application `of the marking material. The solvent being in the form of a distillate will readily penetrate the small cavities and come in contact with every portion of the roads surface. When this surface is so moistened, the marking shoe passes thereover, and the heated marking material is applied. The solvent also tends to penetrate any particles of dust or dirt and saturates them so that the marking material will adhere to the particles and thus to the road surface.

The solvent already on the surface tends to dissolve a very small `amount of the marking' material, which comes in contact with the solvent.

This makes the marking material still less viscous so that it will readily flow into the small cavities of the roads surface. Even if the roads surface is chilled, it has been found that by applying a coating of solvent prior to discharging the marking material that a perfect bond is obtained and that the marking material lasts indenitely longer and remains in place on the road much better than when the mark is applied without the use of a solvent.

It seems obvious that in a very short period the solvent Will evaporate, leaving the marking material iirrnly bonded to the roads surface because it has penetrated all the tiny cavities and obtained a rm hold upon the roads surface.

The ow of marking material to the shoe 42 is controlled by means of a valve 55, which is in turn controlled from the operators position indicated at 51. It is intended that the speed of the vehicle, as well as -controls for each of the mechanisms used in marking the road, shall be positioned adjacent this drivers seat 51. With this in mind, a valve handle 50 is provided to cut off the flow of marking material from the receptacle 4 as well as the handle 54 to control the valve 53. A valve 59 controls the fuel supply forthe burners, such as 60, positioned on the shoe and the burners, which are incorporated in the receptacle 4 to heat the marking material; Positioned adjacent the operators seat also are the clutch and brake pedals 6I and 62, respectively.

It is also intended that the accelerator or other throttle will be provided so that the operator in the position 51 can control the speed of the vehicle in accordance with the satisfactory operation of the various mechanisms. While these controls have not been shown in detail,

points where the shoe and the Wheel are located. it is believed that the construction thereof will be readily understood and that the diagrammatic illustration will serve as a suicient disclosure.

Positioned on the vehicle is the receptacle 5, which is provided with a spout or chute 65, which is directed downwardly toward the surface being marked. A suitable agitator 66 is provided within the receptacle 5, and is driven by a drive chain or belt 61. In this manner, a suitable dusting or covering substance will be distributed on the surface which has just been marked. It is intended that sand or other suitable dusting material will be placed in the hopper and that the agitator 66 will be driven at such a speed that this material will be fed into the chute 65 at the proper rate.

While the hopper 5 has been described above as a dusting material, itis contemplated that other substances may be used in this hopper for the purpose of glazing the surface of the mark.

It is desirable that the mark be visible particularly at night, and, with this in mind, various substances have been applied to the mark, such as small flakes of mica or other brilliant or sparkling materials. If the marking material be a paint instead of a bituminous substance a suitable dusting material may be used such as lime,

cement, or rock dust, which will coat the surface of the paint and preventthe same from being picked up by passing vehicles.

If such sparkling or reecting material -is distributed from the hopper 5, it will be lodged upon the asphaltic marking material while the mark is still ina uid state, and will become more or less imbedded in the marking material. When this occurs, the refiectingparticles are firmly imbedded and permanently positioned so long as the mark exists. While mica has been mentioned as a suitable material, it is intended that any substance will be used, the flakes or particles of which serve to reflect the headlight rays of vehicles so that the mark will be vvisible to the traffic at night. 'I'hus, a distinctive traflic mark will be provided which will be visible at night regardless of the color of the road surface.

In order that the machine may be guided in the proper direction, an outboard steering mechanism has been provided. which includes-an adjustable framework 10, which is preferably carried by the forward end of the vehicle. This framework includes an extensible support 1I, which is mounted upon a trunnion 12, which in turn rides upon the wheel 13. An indicating iinger-14 is disposed on the mechanism so that the point 15 thereof will move adjacent the edge of the road surface. 'I'his mechanism is braced with a suitable strut 16, which is adjustably connected to the side of the vehicle. It is intended that the support 1| can be adjusted to accommodate different widths of road so that the brush 22 and the other mechanisms will be disposed at the center of the roadway when the point 15 is adjacent the edge.

In order to maintain the vehicle in the proper position, the operator who is to guide the vehicle is positioned upon the seat 18, which'is mounted outboard of the vehicle on an extensible support 19. An auxiliary steering mechanism, in addition to that usually employed upon vehicles, is shown at 80. This mechanism is carried by a support 8|, and is shown as being connected to the original steering mechanism by means of the rock shaft 82 connecting the lever 83 and the steeringarm 84. Thus, by movement of the'lever 85, the

operator is enabled to guide the vehicle so that the point 15 will be maintained on the edge of the road, and he is then positive` that the mark being placed will be at the center of the road.

The particular advantage of the present construction resides in the combination of the various elements .into a single vehicle so that a perfect stripe may be placed upon the road by a single operation. Only two operators are required upon the vehicle, one to perform the steering from the seat 18, and the second to control the manipulation of the various devices and to regulate the speed of travel of the vehicle from the seat 51.

With the present machine, it is possible to brush, clean,'spray and mark the road surface, as well as to dust the marked area in a single operation.

Figure 3 shows a slightly modified form of the carriage l5 in which the wheels 43 are mounted on bars 44 which are pivoted at 90 to the shoe housing 45. 'I'he bars 44" are extended beyond the pivot point and provided with springs 9| which are anchored to the housing 45 so that any variations in the surface of the road will be absorbed by relative movement of the shoe and the wheels. Thus, if the wheels pass over an obstruction, the shoe will not be raised from the road surface but the movement will be absorbed by the spring, and if the shoe passes over a depression, the spring will tend to move it downwardly so that excessive marking material will not be discharged.

What I claim as new is:

1. A road marking combine including a rotary brush, means carried -by said combine to remove the material loosened by said brush, means to apply a solvent for the marking material to the road surface, vmeans to apply a coating of marking material on the road surface above the solvent, and means to dust the top of the marked surface, all of said means to be operable from said combine whereby the road surface may be cleaned, marked and dusted at a single operation.

2. In a road marking combine, a marking material distributor shoe, a marking material solvent spray disposed directly in advance of said shoe, and supply receptacles foreach the marking material and the solvent carried by said combine whereby the' marking material is deposited on the solvent coated road surface and will be somewhat l dissolved to form a bond with the road surface.

3. In a road marking combine, a marking material distributor shoe, a marking material solvent spray disposed directly in advance of said shoe, and supply receptacles for each the marking material andthe solvent carried by said combine, and means also carried by said combine', to clean the surface to be marked whereby the solvent and marking material will adhere to the road surface.

4. Ina road marking combine, a marking material distributor shoe, a marking material solvent spray disposed directly in advance of said shoe, and supply receptacles for each the marking material and the solvent carried by said combine,

and means to surface the marked area with a` terial distributor sho'e, a pivoted connection therefor so that said shoe will drag on the road surface, a marking material solvent spray disposed directly in advance of said shoe, and supply receptacles for each thejmarking material and the solvent carried by said combine, so that a mm of solvent will dissolve a portion of the marking material so that such material will ow into the depressions in the road surface to form a bond.

6. In a road marking combine, means to clean the surface to be marked, means to apply a volatile liquid solvent on the surface to receive the marking material, and means to apply the marking material.

7. A road marking machine including a vehicle, a frame pivoted to said vehicle at one side thereof, a carriage pivoted to said frame, a marker shoe adjustably arranged on said carriage to drag on the surface being marked, and a feeder mechanism to supply marking material to said shoe, said mechanism including a hopper, and means to control the iiow oi material to said shoe,

8. A road marking machine including a vehicle, a frame pivoted to said vehicle at one side thereof, a carriage pivoted to said frame, a marker shoe adjustably arranged on said carriage to drag on the surface being marked, and a feeder mechanism to supply marking material to said shoe, said mechanism including a hopper, means to control the ow of material to said shoe, and

25 guard bars at each side of said shoe but movable independently thereof to denne the mark being- `a carriage pivoted to said frame, a marker shoe adjustably arranged on said carriage to drag on the surface being marked, and a feeder mechanism to supply marking material to said shoe, said mechanism including a hopper, and additional means to clean and condition the surface ahead of said shoe.

10, In combination with a road marking machine, a wheeledvshoe carriage, a marking shoe thereon, and resilient means supporting some of the wheels and connected to said shoe carriage whereby said shoe may ride on the surface being marked.

11, In combination with a road marking machine, a Wheeled shoe carriage, a marking shoe thereon, supporting wheels connected to said shoe, and a resilient connection between said shoe and wheels whereby inequalities in the road surface will not cause said shoe to be lifted from the road. l

EVERETI' H. HOILINGSHEAD.