US2706302A - Paint striper - Google Patents

Description

April 19, 1955 A. B. KRATZ 2,706,302

PAINT STRIPER Filed Aug. 4, 1950 2 Sheets-Sheet l l E INVENTOR.

,QM'HOR 8. KRA 'rz A. B. KRATZ PAINT STRIPER April 19, 1955 Filed Aug. 4, 1950 2 Sheets-Sheet 2 INVENTOR. MTI/l/R 6. K8412,

United States Patent PAINT STRIIER Arthur B. Kratz, Detroit, Mich.

Application August 4, 1950, Serial No. 177,637

2 Claims. (Cl. 15--103.5)

Mv invention relates to a new and useful improvement in the paint striper, adapted for use in marking stripes on various surfaces such as floors, streets, athletic fields, etc.

It is an object of the invention to provide a paint striper of this class which will be simple in structure, economical in manufacture, durable, compact, easily operated and highly efficient in use.

It is another object of the invention to provide in a striper of this class, a receiving trough for receiving paint or other suitable coloring matter in liquid form from a receptacle and through a chain of roller members transferring the same to the periphery of a rotating w eel.

Another object of the invention is the provision in a paint striper of this class of a plurality of rotating members rotating in contact with each other at their periphery and so arranged that suitable marking material may be transferred to the periphery of one rotating member which contacts the surface to be marked.

Other objects will appear hereinafter.

It is recognized that various modifications and changes may be made in the detail of structure illustrated and it is intended that the present disclosure should be considered but the preferred embodiment.

Forming a part of this application are drawings in which:

Fig. 1 is a side elevational view of the invention with parts broken away and parts shown in section,

Fig. 2 sectional view taken on line 2-2 of Fig. 1,

Fig. 3 is a fragmentary sectional view taken on line 33 of Fig. 1,

I Fig. 4 fragmentary sectional view taken on line 4-4 of Fig. 1.

Fig. 5 is a fragmentary view taken on line 55 of Fig. 1,

Fig. 6 is a sectional view, reduced in size, taken on line 66 of Fig. 1.

In the drawings, I have shown the invention as embodying a pair of traction wheels 9 and 10 which are mounted on axles 11 and 11a. These axles extend through the upwardly projecting standards or supports 12 and 13 which form the legs of a U-shaped structure having the bight 14. This bight 14 serves to support a trough 15 having a receptacle 16 at one end thereof and in which is loosely positioned a float 17 connected by the rod 18 to one of the openings 19 formed in the rockable lever 20. This lever 20 is pivotally connected to one end of the bracket arm 21 and is also pivotally connected to the linkage 23 and 24 which serves to actuate the valve 25 slideable in the valve housing 26. This valve 25 controls connection between the pipe 22 which discharges into the trough 15 and the pipe 27 which leads from the container 28. This container 28 rests upon the crossbar 29 which extends between the standards 12 and 13; these standards being connected together, as shown in Fig. 2 by the bar 30. The container 28 is placed in a sleeve 31 which is provided with the sleeves 32 to receive the ends of the standards 12 and 13.

Mounted between these standards 12 and 13 are the plates 33 and 33a.

A roller 34 is mounted on the shaft 35 which extends through the plates 33 and 33a, this shaft extending through the substantially horizontal slots 36 and 37 formed in the plates 33 and 33a. Mounted on the periphery of the roller 34 is a yieldable covering 38 2,706,302 Patented Apr. 19, 1955 of felt or the like. This covering 38 is adapted to engage the felt covering 39 or the periphery of idler roller 40 which is mounted on the shaft 41 extending through slots 42 and 43 formed in the plates 33 and 33a. Springs 44 serve to normally retain the roller 40 moved downwardly so as to retain the same in engagement with the covering 38 of the roller 34. This covering 39 of the roller 40 is also maintained in engagement with the covering 45 formed from felt or the like which is mounted on roller 46. This roller 46 is mounted on the shaft 47 which projects through the substantially horizontal slots 75 and 76 in plates 33 and 33a respectively and also through the depending plates 48 which are attached to the lower end of handle 60. A spring 49 serves to connect the axles 47 and 35 together. Mounted on the axle 35 is a pulley 50 which is in alignment with a pulley 51 mounted on the axle 47 and a spring belt 52 rides on these pulleys 50 and 51. As shown in Fig. 2, U-shaped plates 53 and 54 are mounted on the standards 12 and 13 to retain the wheels 9 and 10 in properly spaced relation.

A drip pan or plate 55 is positioned below the roller 40 and inclined to the trough 15.

Secured to opposite sides of the trough 15 and projected upwardly therefrom are supporting bars 70 and 71. Connected to the supporting bars 70 and 71 by means of the springs 72 is a scraper plate 73 having a cut-out portion 74, as clearly shown in Fig. 5, in which engages the periphery of the roller 34 carrying the covering 38 of felt. This scraper serves to prevent an excess amount of liquid being carried upwardly from the trough 15 by the roller 34.

A propelling handle 60 is suitably attached to the device so that the user may propel the mechanism along the surface on which it rests. The handle 60 comprises a pair of elongated members, the lower ends of which are suitably connected to the plates 48, and the upper ends of which are securely joined by a transverse plate 78. The plates 48 are rotatably mounted on the shaft 47.

The construction is such that the container 16 is normally above the surface 61 so that when desired the striping wheel or roller 46 may be moved out of engagement with surface 61. Ahis is effected by rocking the plates 33 and 33a, which form a frame, upwardly at their forward ends on the axles 11 and 11a as a pivot.

In use a quantity of liquid marking material such as paint, white-wash or the like may be deposited in the container 28 from which it will pass through the pipes 27 and 22 into the trough 15 and thence into the container 16. Until the liquid material in the container 16 has risen to a sufiicient height to permit it to flow into the trough 15, the liquid will continue to flow through the pipe 22. When the float 17 rises it will serve to close the valve 25 and prevent further flow of the material of the pipe through 22.

It will be seen that, when the roller 46 is in engagement with the surface 61, a stripe may be marked thereon by pushing the mechanism along the surface. As the roller 46 rolls along, it rotates pulley 51 which functions to actuate the roller 34 on the shaft 35, by means of the pulley 50 and spring belt 52. The spring 44 operates to urge the idler roller 40 downwardly into an operative engagement with the rollers 34 and 46, whereby paint will be transmitted from the trough 15 to the covering 38 of roller 34, then by rolling contact to the covering 39 of roller 40, and then by rolling contact to the covering 45 on roller 46 which rolls the paint on the surface 61.

What I claim is:

1. In a paint striper of the class described, a pair of spaced apart vertically extending standards; a liquid receiving trough mounted on said standards adjacent the lower end thereof; a pair of spaced apart side plates positioned between and extending forwardly and rearwardly of said standards; a pair of traction wheels, one being positioned outwardly from each of said standards; an axle for each of said traction wheels extending through said standards and said side plates for supporting the same; a roller; an axle for supporting said roller extending through substantially horizontally directed slots in said plates, said roller being adapted for engaging liquid in said trough; a contact roller for contacting the surface over which it is moved; an axle projecting through said contacting roller and through substantially horizontally directed slots formed in said plates adjacent the forward ends thereof, said roller axles being bodily movable toward and away from each other; an idler roller positioned between said plates; a shaft projecting through said idler roller and through substantially vertically directed slots in said plates, said idler roller contacting, at its periphery, the periphery of said first named roller and said contact roller; a spring connected at one end to one of said plates and at its opposite end to the axle of said idler roller for normally retaining said idler roller in contact with the other rollers; a spring connected at one end with one end of the axle of said first named roller, and at its opposite end with a corresponding end of the axle of said contact roller for moving said rollers toward each other; and a belt for rotating said first named roller upon rotation of said contact roller.

2. In a paint striper of the class described, a pair of vertically extending spaced apart standards; a pair of spaced apart plates positioned between said standards; a pair of traction wheels, each positioned on the outer side of one of said standards; an axle for each of said wheels projected through a standard and one of said plates, said plates extending forwardly and rearwardly of said axles; a trough supported on said standards below the axles of said traction wheels; a roller positioned between said plates adjacent the rear end thereof; an axle for said roller extending through substantially horizontally directed slots formed in each of said plates adjacent the rear end, said roller extending into said trough for engagement with liquid material in said trough; a contact roller positioned between said plates adjacent the forward end thereof for contacting the surface over which it is moved; an axle projected through said contact roller and through substantially horizontally directed slots formed in said plates adjacent the forward end thereof; an idler roller positioned between said plates and between the forward and rearward ends thereof; a shaft projecting through said idler roller and through substantially vertically directed slots in said plates, said idler roller contacting, at its periphery, the periphery of said first-named roller and said contact roller; a spring connected at one end to one of said plates and at its opposite end to the axle of said idler roller for normally retaining said idler roller in contact with said other rollers; a spring connected at one end with one end of the axle of said first-named roller and at its opposite end with the corresponding end of the axle of said contact roller for,normally tending to urge said rollers towards each other; a pulley on the axle of said first-named roller at one end thereof; a pulley on the axle of said contact roller at one end thereof, said pulleys being in alignment; and a belt connecting said pulleys for rotating said first-named roller upon rotation of said contact roller, said pulleys being positioned on their axles at the end opposite to the end to which said second-named spring is connected.

References Cited in the file of this patent UNITED STATES PATENTS 386,687 Cadd July 24, 1888 401,335 Dodson Apr. 16, 1889 1,195,310 White et al. Aug. 22, 1916 1,753,593 Bettes Apr. 8, 1930 2,476,926 Stocks July 19, 1949 FOREIGN PATENTS 21,990 Great Britain Sept. 30, 1913 538,710 Great Britain Aug. 13, 1941

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