US2350033A - Stamp for decorating nonplanar surfaces - Google Patents

Description

y 30, 1944- H. c. HEBENSTREIT 2,350,033

STAMP FOR DECORATING NONPLANAR SURFACES Filed Nov. 29, 1941 5 Sheets-Sheet l INVENTOR,

ATTORNEY.

y 1944- H. c. HEBENSTREIT STAMP FOR DECORATING NONPLANAR SURFACES Filed Nov. 29, 1941 3 Sheets-Sheet 2 WW I KXTTORNEY.

M y 1944 H. c. HEBENSTREIT STAMP FOR DECORATING NONPLANAR SURFACES 3 Sheets-Sheet 3 Filed Nov. 29, 1941 5:5 :1 v INVENTOR, jr/y/ 6' 1%19ensfiez'z? Patented May 30, 1944:-

UNITED STATES: F C

STAMP FOR DECORATINGNONPLANAR I 7' SURFACES Harry Hebenstreit, Alliance; Ohio T Application November 29, 1941, Serial.No.-420,9-16

8 Claims; (CL 101-879) I This invention" relates to improvements-1m stamps for anda method of decorating non-- planar surfaces and has particular reference to stamp and method suitable for decorating vari ous types of dish-ware. 1

The principal object of the present invention is the provision of a methodof decorating' the inner non-planar surfaces of relative deep dishware'by first contacting the outer portion of the dish surface to be decorated with a resilient-stamp and then forcing-this stamp inwardly against the surface whereby it is compressed and distorted so as to meet the inclined surface of the dish at substantially rightangles'. Another object of this invention is the provision of a. method of decorating non-planar su'rfaces of dish-ware wherein the outer portionof the surface of the dish to be decorated isfirst contacted by a resilient stamp and then the inner portion of said surfaceis decorated by rolling the inner portion' of the stamp thereagainst undertensioh."

Still anotherobject of the invention is the provision of a; stamp for decorating non-planar surfaces having aprinting face disposed at a greater angleto the direction of travel of'jthe stamp than the angle of the non-planar surface to be decorated is to said direction of travel.

A further object of the'invention'is the bro vision of stamp for decoratingnon-planar sur-' faces 'comprising a base member of relatively rigid structure and acushionmember secured therein and provided with material of greater thickness at the portions where greater depressions of the cushion-member'are" to bemade.

Astill further object is theprovisionof a'stamp constructed with graduated thickness of cushio'ning sections whereby the outer surfaces of deep dishes may be first printed-then the printing face of the stamp maybe rolled into position to properly contact the moreinclined surfaces of the dish. l i Another object of this invention is the -pro- 1 vision of a resilient stamp so constructed that it will successively contact-the portions'""of the non-planar' dishsurface to be decorated with *a f substantially equal pressure against allportions' of the dish surface at the completion of the impression stroke of the stamp; r 11.21 Other. objects are durability and simplicityof construction, ease and accuracy of :operation- I and adaptability for use in decorating the various typesof non-planar surfaces; i .1 3w .with theseobjects ias well as otherss' which will appear? during the course of: the speciflca- 58" tion, -in view, reference will now be had to the drawings wherein: I i i t "Figure 1 is a vertical section of a printing press (of the Gordon type) suitable for carrying out the method of decorating non-planar surfaces,

and embodying the novel stamp of this inven- Fig'. 2 is a fragmentary plan view ofa portion of the press.

Fig.3 isa' planview of the stamp withparts broken away-to disclose the variousfeatures.

Fig. 4 ma cross sectional view takenon line IV-IV'of Fig.'3. i i

"Fig. 5 is an enlarged sectional viewof a portion of the stamp with the dish positioned in the partially contacting position.

Fig. 6 is a view similar to that shown in Fig. 5 with the'stamp completely contacting the nonplanar surface of the dish to be decorated.

Fig. 7-is afragmentary'plan view of a modified form of the stamp.

Fig. 8 is acrosssectional view taken on line VIII-VIII of 'Fig.- 7 with a dish segment in operati-ve relation" relative thereto.

Fig. 9 is a view similar to that shown in Fig. 8 with the outer peripheral portion of the stamp contacting a portion'of the non-planar surface ofthe dish to be decorated. r

Fig.- 10 shows the stamp and dish in complete contacting relation! Fig. 11 is a fr'agrnentary view'of a stamp member wherein theresilient stamp member is shown hollow. 4

Throughout the several -views like reference "characters refer-to similar partsand the numeral ;.2335'340 'dated- November 30, 1943.

This press includes a stationary frame 22 to which is pivotally' mounted a bed frame 24 by means of pins 26. The bed frame 24 carries a bed-plate Which is adapted to be oscillated to- -ward and from the platen or impression control table- 30 which is adjustably carried by the stationary frame Z'L- The bed plate 28 carries a printingforin 32 whichis securely mounted thereon. Thisprinting form includes a chase 'yu mounted on the press bed 28 and having a central opening 36 formed through bed plate 28.

stamp 40 best shown in Figs. 3 and 4, is providedwith t'blOCk 42, having a central opening u or it may bemade plane in some instances. The back side 46 of the block 42 is made planar and can be adjustably mounted against the planar face of bed plate 28. The front or top portion of block 42 is grooved at 48 to form an annular recess or groove in the face of the block for the reception of a resilient cushion member 56.

Since this particular stamp is constructed to be used in decorating non-planar surfaces of relative deep, circular dish-ware the groove 43 is circular in Iform, however it; might be m'ade elliptical or'of more or' less irregular form 'to' properly conform to'dishes of various shapes. It.

will be noted that this groove is stepped and that the outer portion 52 is of greatendepth than 1' 5 the inner portion 54.

A substantially U-shaped cushion member is adapted to be fitted into groove d'8 withits outer portion extending above the? top surface of block 52 to present a non-planar surface 58 to receive the thin sheet of resilient material 60 formed to presenta printing design 52. Surface 58 is substantially frusto-conicalin shape and is.

made of a less degree of inclination than the degree of inclination of the surface 64 of thedish 66 to be decorated. I'his cushion member 5 fican be built-up by using several .pieces of sheet sponge-rubber, or some similar material, or may be formed from a single piece of rubber to present the proper shape. The sheet rubber member 60, having thedesign t2 formed on its outer surface presents a relief printing face and is made of a close grain rubber suitable for presenting a smoothprinting surw face and retains its original normal, shape. for a long period of time. I V I A suitable adhesive, is used to secure the cushion member 56 to the bloc kA Z to prevent its displacement and to permit of proper compression during the printing operation. In the structure shown in Fig. 4 the cushion memberis secured at surfaces 10, I2, and 'M. To facilitate proper compression of the cushion to obtain the best printing eifect the outer wall of the inner leg llfi of the cushion mber is V-eroovedatia. Th

outer leg 8110f thecushion member is secured,

on y a ed e 0, thus mit n t. o, ec irk.

prised to any desired degree.

The rolling movement of the stamp member is shown in. Figs... .4, 5 and 6. In Fig. 4 the stamp is in the normal position, Fig. 5 discloses the stamp. moved to a partially contacting position and Fig. 6 shows the completed stamping move- 'ment..' .Asthe stampis retracted the reverse rolling action is obtained. This rolling action to and This stamp is suited for use infdecorating deep I dish-ware wherein the non-planar surface to be decorated is at a considerable angle to the; direction of r v o h stam rel t ve t the dish during the decorating ,operation, Thefragment of dish 66 shown in Figs. 5 and 6, is a soup dish in which the surface 64 to be decorated is disposed at a relative steQP an leto the direction. of travel of the stamn'indicatedby arrow. 82.-

In the decoratingoperation the outer periph eral portion of theinked stamp design first contacts the outer rim portionof the; dish surface. to;

be decorated. The cushion portion beneath this outer decorating portion of th stamp is gradually compressed as the stamp moves toward ,the I- dish thereby settingup sufficient pressure between the dish and stamp to preventcreepingof; the

stamp on the dish surface. Due. to. the special properties of the cushion mernbenthe design. sheet and the angled relation of the dish surface I to the normal position of the stamp printing sur-.. face there will be a rolling efiect of;the stam printing surface as the decorating operation;

progresses. It will be observedthat the inner pe riphery of the design sheet 68 ;mo ves outwardly as the decorating operation -progresse s thu eaus ing an increase in design sheet.

eale diam t at. the

from the decorating position produces a movement; of the design surface, at ubstantially right angles to theparticular surface to be decorated, I

thereby insuring a clean-cut impression on the dish surface without any dragging or slipping of the stamp on the dish surface. The distribution of the cushion resilient resistance can be varied to. suit-the, Surface of the dish surface to be decorated.

When' decorating the outer surface 82 of a dish,

it is guite evident that the same general method 'might be usedby simply making the printing surface of the stamp concave instead of convex as shown. I I The modified form of stamp shown in Figs. '7,

8,. 9 ,and 10 contemplates the rigid block grooved ateltgreceivethe cushion member 94 made up of sections 96, 98 and I09. Section 96 and 98 may be of air foam rubber, and section I00 of a. more dense sponge rubber, the outer sheet of, rubber I82 is close. grained and suitable for re ceivingthe design I04. I 'his stamp is suitable for.

decorating the small diameter deep dish I06, and may be used, with slight changes. to decorate almost any of the various types of dishes. 7

Figs. 8, 9 and 1 0 showgenerally the actions of.

i tamndur he' o a i o ti Fig. ll shows a further modified form of a stambjwhereidthe block I ll] is LEIOOVSCL at H2 to receive the {hollow cushion member I 14, provided with an outersurface printing sheet 6.

The, recess 1 lfi formed in the cushion may be varied in cross sectional shape andarea to meet.

All rin .si1I -ac. .lt r t o a p are 1 positipned: b e il ei tersur ace. of e s pport.-

i esb ock so ,t tthc lorinema erial to be used in decorating the dishware may be spread theree i e u ualm n -I. Y Y

These types; of, stamps are .spitable for: decorat-.

ing -thenon-planarsurfaces of the various types. dish nclud n sha o and, deep, dishes. of. differentdiameter as dishes having abrupt verges,

and dishes ofyarious shapesw I Since many :rninor ehan esmay be. made I the I stamp without, departing from the spirit of; the inventionit is desired. to be, limited only by the.- scope of the appended. claims. Ic1aim:; .-.1--

1. A stamp for deco-rating non-planar surfaces. comprising a. basemember having a. ring shaped recess -.formed. therein, .a resilient ring pad posi tionedwith its;outer. edge portion ,in. said recess and its inner edge portionresting on saidubase;

, adjacent said.recess-andJeXtendingL above. said ,bELSE? member, and; a; relief design; of" substantially frusto-conical form carried on the outer surface of said pad.

2. A stamp for decorating non-planar surfaces comprising a base member having a continuous groove formed in the top side thereof, a ring shaped resilient cushion member mounted in said groove and extending thereabove, an upwardly and inwardly inclined printing design carried on the outer surface of said pad.

3. A stamp for decorating non-planar surfaces comprising a base member having an annular groove formed in the top portion thereof and having an inclined inner wall, a resilient cushion member mounted in said groove and extended above the top surface of the base member to present a substantially frusto-conical surface, and a sheet of relatively firm resilient material having a relief design, secured to said frustoconical surface.

4. A stamp for decorating non-planar surfaces comprising a base member having a transversely stepped annular groove formed in the top portion thereof, a cushion member formed to fit into said stepped annular groove with a portion of the cushion member extending thereabove to rest on the base member adjacent said groove and to present a non-planar surface above said base member, and a thin sheet of resilient material formed to present a relief design mounted on the outer surface of said pad.

5. A stamp for decorating non-planar surfaces comprising a base member having a transversely stepped annular groove formed in the top portion thereof, a hollow rubber cushion member formed to fit into said stepped annular groove with a portion of the cushion memberextending thereabove to present a non-planar surface, and a relatively thin sheet of resilient material formed to present a relief design mounted on the outer surface of said pad.

6. A stamp for decorating non-planar surfaces comprising a base member having a transversely stepped annular groove formed in its top portion, a rubber ring member adapted to be fitted into said stepped groove with its outer portion extending thereabove to present a substantially frusto-conical surface, and a sheet of resilient material formed to present a relief printing design mounted on the outer surface of said pad.

'7. A stamp for decorating non-planar surfaces comprising a base member having an annular roove formed in the outer face thereof an annular cushion member of substantially U-shaped cross-sectional area positioned with its legs in said annular groove and its leg connecting portion extending therebeyond to present a substantially frusto-conical surface, and a printing design carried by said frusto-conical surface.

8. A stamp for decorating non-planar surfaces comprising a base member having an annular groove formed in its outer surface, said groove being deeper at its outer periphery than at its in- Her periphery, a cushion member positioned into said groove and extending outwardly therefrom to present a substantially frusto-conical surface, the outer peripheral surface of said cushion member being free to move vertically in said groove and a printing design carried by said cushion member.

HARRY C. I-IEBENSTREIT.

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