US1985300A

US1985300A - Method of embossing

Info

Publication number: US1985300A
Application number: US520067A
Authority: US
Inventors: Louis E Shaw
Original assignee: ADARTCRAFT Inc
Current assignee: ADARTCRAFT Inc
Priority date: 1931-03-04
Filing date: 1931-03-04
Publication date: 1934-12-25
Anticipated expiration: 1951-12-25

Description

Patented Dec. 25. 1934 ,UNI-TED STATES PATENT OFFICE v 1,985,306 .Y v-

ME'rno'n oF nnmosslNG E. Shaw, East Orange. N. J., assignor to ,Adartcrafa Incorporated, New York, N. Y., a corporation of Delaware Y l Application March 4', 1931, serial No. 520,067

and more particularly to methods of making deep embossings.

In embossing brous sheets the raised portion of the embossing is generally formed from a flat .sheet necessitating stretching ofthe bers and thus weakening the structure. The depth of the embossing is thus limited by the abilityof the brous sheet to stretch without tearing. In making various types of embossings the embossed structure is of great depth and great care must be exercised to prevent tearing of the sheet. Thus, in the display devicev of th'e character described and claimed in the application of Rudolph M.

. Sanders, Serial No.- 460,931, filed June 13th, 1930 it is very difficult to obtain the desired depth of embossing from a at sheet.

In the present invention Iobtain deep embossin'gs by providing a corrugated sheet or a sheet' having an irregular surface. This provides additional material from which the embossings may Y Fig. 1 is a vertical, sectional view of the corrugating apparatus;

Fig. 2 is a front elevation thereof;

Fig. 3 is an end elevation thereof; l

Fig. 4 is a detailed, sectional view of an embossing die; f Y

Fig. 5 is a plan view of an embossed membersimulating a row of cigarsprior to folding;

Fig. 6 is a similar view of the embossed member in folded position; v

' Fig. 'I is a detailed, sectional view thereof; and

Fig. 8 is an embossed member simulating a llayer of candy.

Referring to Figs. 1 to 3 of the drawing, the

corrugating apparatus comprises a pair of rolls for simulating a layer of candy 'or other product 1 and 2 provided with corrugating grooves 3' in their surfaces. The rolls are mounted on shafts 4 and 5 arranged in suitable bearings. The bearings 6 of the lower'shaft are rigidly-mounted in suitable end members or standards'l and the bearings 8 of the upper shaft are slidably mounted in the end members and are adapted'to be adjusted to desired pressures by means of springs 9. These springs are provided with follwers 10. the position of which maybe adjusted by means of threaded bolts 11 received in the upper ends of the standards whereby the pressure of the spring may be regulated. A burner pipe '.12 is arranged beneath the lower roller 1 to heat the roller and 'thus cause' the paper or other fibrous sheetto be heated and facilitate corrugating of the sheet. A series of vstripper wires'13 extend over the lower roll being mounted in suitable cirfed through the corrugating rolls as 'shown in Fig. 1 of the drawingto'producec a corrugated sheet B. i

vReferring to Figs. 4 to 7 of the drawing, the corrugated sheetB may be employed for the purpose of simulating a row-of cigars to produce 1 a display device adapted to heal-ranged in a cigar box in the position normally occupied by the top 'Y row of cigars as described and claimed in the Sanders application referred to above. An embossing die comprising a lower member 15 and an upper member 16 is adapted' to form a series of embossings having the, appearance of the exposed portions of individual cigars. As shown, the die may be heated by heating wires 17 arrangedtherein. It will'be apparent to one skilled in the art that the amount of material between two of the individual representations 18 of a cigar in the completed embossed product is greater than the amount of material occupied by a at sheet of the same width and when the embossings are made from a fiat sheet considerable stretching of the fibrous sheet is necessary. By employing the corrugated sheet B, I provide additional .material which is reshaped to form the embossing .with considerable less stretching and therefore less .liability of tearing. Y

In Fig. 5, of the drawing, I have shown an embossed sheet with the unembossed material 19 between theindividual representations of the cigars cut or trimmed as at 20 and scored as at 21 -to. permit folding. -The sheet is then folded as in the simulations of the individual candies are indicated at 22. The embossed product is made in substantially the same manner heretofore described in connectionwith the simulation of cigars, ,the diesections 15 and lbeing suitably shaped to produce the individual embossings 22. It will be apparent that in producing the individual embossings 22 from a at sheet considerable stretching of the brouspsheet would be necessary whereas an excess of material is provided by corrugations or other projections which permits the formation of these embossings with considerable less stretching of the sheet.

In the claims the term projections is used to indicate any constructionior form of sheet in which a portion of the fibrous sheet is offset or arranged out of the plane of the flat sheet to provide a greater amount of material for embossing than would be provided by a fia-t sheet of the same width, and it is to be understood that while in an embossing die and embossing said sheet to re-form the corrugations into embossings of different nature and form and withv substantially smooth unbroken surfaces.

2. The method of embossing which comprises deforming a sheet to increase the amount of material in a given area Without materially stretching the material of the sheet, placing said sheet in an embossing die and embossing said sheet to re-form the deformations into embossings of different nature and form and with substantially smooth unbroken surfaces.

3. The method of embossing which comprises deforming a sheet to decrease the projected area of the deformed part without materially increasing the surface area of the deformed part, and embossing the sheet to produce embossings of different character than the deformations but located substantially at the original vdeformations and having smooth unbroken surfaces.

4. The method of embossing, which comprises providing a sheet with a plurality of projections differing in character from the character of the embossing to be formed on the sheet, and embossing the sheet to re-form the projections into embossings having substantially smooth unbroken surfaces.

5. The method of embossing, which comprises forming a sheet with parallel corrugations, and embossing'the sheet by re-forming the corrugations into parallel embossing's of dierent nature and form but extending substantially in the direction of the original corrugations and having su tantially smooth unbroken surfaces.

The method of embossing, which comprises forming a sheet with projections, and embossing the sheet by re-forming the projections into embossings of different nature and form, the surplus material provided by the projections preventing rupture of the material by accommodating the difference in form of the embossings as com.- pared to the projections.

7. The method of embossing sheet material with a die, which comprises deforming a sheet; to conform its surface area to the surface area of the die, and embossing the deformed sheet with the die without increasing the surface area of the embossed sheet, whereby the surfaces of the embossings thus formed are substantially smooth.

Louis E. SHAW. l