US2644975A

US2644975A - Ware lining tool

Info

Publication number: US2644975A
Application number: US186068A
Authority: US
Inventors: Richard J Verba
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-09-21
Filing date: 1950-09-21
Publication date: 1953-07-14
Anticipated expiration: 1970-07-14

Description

July 14, 1953 R.. J.. VERB A WARE LINING TOOL' Filed Sept. 21. 1950 INVEN TOR.

RICHARD J. VE RBA BY QL1 A TTOHWEYS Patented July 14, 1953 WARE LINING TOOL Richard J. Verba, Fairview Village, Ohio, assignor to Howard V. Schweitzer, Shaker Heights,

Ohio

Application September 21, 1950, Serial N 0. 186,068

7 Claims. 1,

This invention relates to ware striping or lining apparatus.

In previous lining apparatus it has been a common arrangement to have a serrated-edge wheel which picks up liquid (which may consist either of paint or of a liquid vehicle with metal content) from a reservoir or a passage leading therefrom, carries the liquid around its periphery and deposits it on a surface on which the wheel rolls. Not all of the liquid carried by the rim is deposited on the striped surface; some of it is carried back up the returning side of the rim to the passage leading from the reservoir. .The serrations permit the wheel to get a bite into the surface being lined; the serrations also serve to an extent as a metering device to meter the amount of liquid deposited by the serrated wheel.

The old lining wheel tools may be used with fair results in lining dishware with paint. The resulting lines are not wholly satisfactory, however, since the serrations in the edge of the wheel sometimes cause a slight saw-tooth effect on the edges of the lines. While such fuzzy edges are not too objectionable in inexpensive ware they are very objectionable in fine china.

The prior art lining wheels are not satisfactory for lining gold. When the liquid vehicle is provided with a suiiicient gold content to firesatisfactorily, the old liners deposit more gold than is necessary and also make such a heavy deposit of gold that the lined ware falls within the classification of jewelry as defined by the tax statutes and becomes subject to prohibitive excise taxes.

It is accordingly an object of the present invention to provide a liner tool which will give a fine control of the amount of liquid deposited on the surface to be lined.

Another object of the invention is to provide a liner tool which will give a line with sharply defined straight edges.

A further object of the invention is to provide a liner tool which is of simple and inexpensive construction.

Still further objects and advantages of the invention will appear in the specification, claims and drawings.

In the drawings:

Figure 1 is a front elevation of one embodiment of the invention.

Figure 2 is a section taken along the line 2-2 of Figure 1.

The body It of the liner has two halves, II and I2. Half I2 has a hole I3 which freely receives the knurled handscrew I4. This handscrew is threadedly received in tapped hole I5 in half II. Near the bottom tip of half I2 is an ar-cuate cut-out I6. At the center of the are forming the edge of the cut-out and extending in a direction parallel to handscrew I 4 is a stud shaft I I fixed on half I2. This stud shaft is slidingly received in a laterally extending hole I 8 drilled near the bottom tip of half I I.

Mounted on stud shaft I1 is a wheel I9, the smooth rim of which is in contact with the material to be lined. In Figure 1, by way of example, is shown a plate 20 temporarily secured by any suitable means to a turntable '2I which is surfaced with any suitable non-abrasive cover 22.

Formed in halves I I and I2 are grooves of semicircular cross section which form a bore and counterbore when the halves are fastened together and aligned by the hands-crew I4 and the cooperating stud shaft I1 and hole I8 respectively. A longitudinal cross section of the bore and counterbore is seen in Figure 2. The counterbore 23 is tapped to receive the threaded neck of a bottle 24. The bore 25 extends downwardly from the top rear at body II! (as viewed in Figure 2) to within an eighth of an inch of the arcuate rim of the cut-out I5. Joining the bore 25 and cutout I6 is a small passage 26 in the form of a slot cut in half I2. This slot has about the same depth in a direction parallel to stud shaft I! as does cut-out I6.

Additional'grooves of semicircular cross section are formed in halves I I and I2. When the halves are fastened together these grooves constitute'a bore 21 which extends from the top front of body I0(as viewed in Figure 1) down to the rim of the cut-out IS. The axis of bore 21 forms an angle of about 45 with the axis of bore 25. To within about one quarter of an inch of its lower end bore 21 is tapped to threadedly receive a knurled handscrew 28. This 'handscrew has at its bottom end an axially extending hole 29 drilled to receive and hold a wiper 3 which bears upon the rim of wheel I9. This wiper can be a wad of any fabric. It can also be rubber or soft plastic Felt has been found to give particularly fine wiping action resulting in particularly effective metering control. The pressure with which the wiper bears on the rim and consequently the degree of wiping action can be adjusted by tightening or loosening handscrew 28.

Fixed to half II and extending in a direction parallel to the bore I5 is a mounting bar 3| which is held by any suitable clamp 49 at such an angle that the wheel I9 will be normal to the surface of the material 20 (here a plate) which is to be lined.

The bottle24 is almost fully filled with paint or with a liquid gold. The liner body I is, of course, inverted when a loaded bottle is being screwed into bore 23. Washer or gasket 32 seals the rim of the bottle against leakage. When the bottle is turned upside down to its operating position a partial vacuum forms at 33. Although the liquid flows freely through bore 25 and slot 26, the running fit between the wheel l9 and the edge and sides of cut-out I6 is small enough so that, when wheel I9 is stationary, liquid surface tension prevents outside air from entering to relieve the vacuum at 33 and the liquid is therefore retained in the liner.

In operation the turntable 2! is turned in such a direction that the surface 20 moves to the left as viewed in Figure 2 and Wheel [9 is frictionally driven in a clockwise direction. Liquid is carried from slot 26 on the rim of wheel I9 past wiper [6 to surface 20 where the liquid is deposited. Small amounts of air enter at 34 to take the place of the liquid carried away by the rim of wheel I9.

It has been discovered that the flow of liquid can be very closely controlled by wiper 30. Contrary to expectations, it has been found that even though the rim of wheel I9 is smooth there is little or no slippage between the wheel and surface 20 when the film of liquid carried on the rim of wheel I9 is kept very thin by suitable adjustment of handscrew 28. This absence of slippage is particularly surprising to one familiar with the ceramics field. It is common to line high grade ware after it has been coated with a glazing solution and fired so as to glaze the surface of the ware. Consequently, such ware presents a glossy and slippery surface to the lining wheel. It would seem that liquid gold would act as a lubricant to cause the smooth wheel to slip on the glossy surface of the ware. As stated above, however, it has been found that there is little or no slippage.

In the prior art devices the small pockets or serrations in the rims of liner wheels acted to carry the liquid away from the supply passage and to carry air back to this passage. This action of the small serrations was comparable to a tiny bucket chain conveyor whose buckets remained filled even though turned upside down due to the surface tension of the liquid. Each serration or bucket carried about the same amount of liquid to the ware surface as did its neighbor effecting a constant metering of the liquid. In contemplating the present invention it was feared that a smooth rim would allow the liquid to escape from the liquid supply passage too freely and would also allow atmospheric air to feed back into this passage too easily. As pointed out above, however, the liquid flow in the present invention is not excessive but, on the contrary, is of an amount that lends itself to very close control by adjustment of wiper 30.

The smooth rim of the present liner wheel acts to deposit a relatively thin layer of liquid. It should be pointed out, however, that the resulting line tends to outWear the thicker saw-tooth edge line of the prior art. The pressure of the smooth wheel upon the ware tends to squeeze out the lining liquid from under the wheel so that both edges of the resulting line are slightly thicker than is its intermediate area. Thus, in contrast to previous lines, the line is thickest at its edges which are the places most susceptible to wear as 4 a result of friction and abrasion in the course of normal use.

It will be apparent from the above disclosure that this invention is not limited to the particular illustrative embodiment set forth but, rather, that its scope is to be determined solely by the following claims.

What is claimed is:

1. In a striping device, a body, a wheel rotatably mounted on said body, said wheel having a peripheral rim, said rim being narrower than the diameter of said wheel, means carried by said body for delivering liquid coating material to said rim, said means comprising an unobstructed passageway terminating in an open end in apposition to said rim, and pliable means carried by said body and slidably contacting said rim across the entire width of said rim to wipe said rim and control the application of liquid coating material by said wheel.

2. A device as defined in claim 1 in which said rim defines a smooth substantially cylindrical surface.

3. In a striping device, a body, said body defining an arcuate slot, a wheel rotatably mounted on said body and received in said slot, the diameter of said wheel being greater than the greatest depth of said slot, said wheel having a smooth peripheral rim, pliant wiping means slidably bearing across the width of said rim. said body further defining an unobstructed opening into said slot in apposition to said rim.

4. A device as defined in claim 3 in which said rim defines a substantially cylindrical surface.

5. In a striping device, a body, a wheel rotatably carried by said body, said wheel having a rim, wiping means slidably bearing on said rim, said wiping means comprising a pliable material, compressing means wiping said pliable material against said rim, said compressing means being adjustable to vary the amount of compression, said body defining an unobstructed passageway for liquid coating material terminating in an open end in apposition to said rim.

6. A device as defined in claim 5 in which the point of contact of said wiping means with said rim is angularly displaced around said rim from said unobstructed passageway for liquid coating material.

7. In a striping device, a body, a wheel rotatably carried by said body, said wheel having a smooth rim, wiping means slidably bearing on said rim, said wiping means comprising a pliable material, compressing means wiping said pliable material against said rim, said compressing means being adjustable to vary the amount of compression, said body defining an unobstructed passageway for liquid coating material terminating in an open end in apposition to said rim.

RICHARD J. VERBA.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,461,461 Shofter July 10, 1923 1,988,710 Beugler Jan. 22, 1935 2,151,682 Burkey Mar. 28, 1939 2,203,572 Johnson June 4, 1940 2,303,171 Morrison Nov. 24, 1942