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Publication numberUS1441642 A
Publication typeGrant
Publication dateJan 9, 1923
Filing dateJul 6, 1921
Priority dateJul 6, 1921
Publication numberUS 1441642 A, US 1441642A, US-A-1441642, US1441642 A, US1441642A
InventorsTofanelli Sebastiano
Original AssigneeTofanelli Sebastiano
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Paste die
US 1441642 A
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Description  (OCR text may contain errors)

Jan. 9, 1923. Y 1,441,642.

I S.T( )FANELLI.

PASTE DIE FILED JULY 6.1921.

M ll!!! l l/l/VENTOR 555/1 ST/A/VO TOFA/VELL ATTK Patented Jan 9, 1923.

n "u new PM W A w snnns'rrnno 'rorannrnr, or sun rannorsoo, clirrroanra.

PASTE DIE.

Application filed July 6,

To all rv/2.0m it may concern. I

Be it known that I, Sneiisrnino Tory ANELLI, a citizen of the United States,

In such a case, it is often necessary to re move the center pins from the dies and,

as they are separately and rigidly held in position, it is quite a task to remove and replace all of such pins.

It is the principal object of the present invention to provide a die in which all of the pins forming the central openings through the products manufactured may be instantly removed and replaced, thus greatly facilitating the operation of the machine; and it is a further object of the present invention to provide a die which will form a product having a wall of uniform strength and thickness. v

The present invention contemplates the useof a perforated disc through which flour paste may be pressed. and which disc carries a secondary disc upon which core pins are mounted and supported in the center of the perforations of the main disc, said secondary disc and all its pins being capable of instant separation frointhe remainder of the die.

The invention is illustrated by way example in the accompanying drawing which- Figure 1 is a central section through the die showing its construction and applica tion;

Fig. 2 is a view in plan showing the face of the die.

Referring more particularly to the drawing, indicates a base plate. is formed with a plurality of openings'll. These openings have a cylindrical bore 12 at their lower ends while the remaining upper portion converges outwardly to form a frusto-conical section. The perforations 11 are distributed over the plate 10 of the die in any convenient manner. Secured to This plate 1921; Serial no. teaser. I

the top face oft-he member 10 is a removable disc This disc is secured to the plate by screws 14:. l-is shown in Fig. 2, groups of small perforations 1.5 are formed through the disc. These groups of perforations occur along the circumferences of circles, the cente "s of which agree with the longitudinal centers of the passageways 11 in the main disc. Extending from the under faces of the removable disc 13 and from the centers of the groups of perforations 15 are core pins 16. These pins are of smaller outside diameter than the diameter of the cylindrical bores 12, the diniensions being suihciently different to deterniinethe thickness of the wall to be formed in the paste product pressed through the die; The upper ends of the pins are reduced in diameter so that the perforations 15 may be of a described size and may be satisfactorily arranged around the pins. particularlydirected to the fact that the perforations 15 are distributed entirely around the pins, thus making it possible to uniformly supply paste all sides of the opening and thereby insure that a procluct having a wall of uniform thickness will he provioed This is in contradistinction to the present common method of forming dies of this character in which the pins are supported from one side of the opening. thus preventing a uniform distribution of the paste and causing one wall of the product to be weak.

In the operation. of the present invention the die assembled as shownin the drawings, and may thereafter be suitably mounted at the end of cylinder 17, this cylinder carrying piston 18 by which paste of a desired consistency may be forced through perforations 15 of the removable plate; from thence entirely around the pins 16 and filling the passageways 11, after which the paste will he forced out through the annular opening between the pin and circumscribed by the cylindrical bore 12, thus forming the paste product desired.

lVhen it is necessary to clean the die, the screws 1 may be removed, after which the plates 10 and 18 are separated. When these plates are separated, all of the pins will of .course be withdrawn from the passageways Attention is I claim and desire It will thus be seen that a die here disclosed insures that paste products having walls of uniform strength and thickness may be made, and when it is desired the oie may be readily cleaned and replaced.

ll hile l have described the preferred form of my invention, it is to be understood that various changes may be made. by those skilled inthe art without depart-u ing from the spll'ltbf the invention.

. Having thus described my invention, what to secure by Letters Patout is: j

l. A paste forming die comprising a body I plate having a plurality of passageways formed therethrough, a pin extending into each of said passageways, said pin being of diameter to create an annular opening between its outercircumference a d the inner circumference of the passageways, and areinovable plate disposed above the body plate and carrying all of said pins and supporting them in their proper positions, said removable plate being formed with a plurality of groups "of perforations, the perforations of each group being arranged about the vertical axis of the said passageways and within the boundarythereof;

'2. A paste forming die comprising a body plate having a plurality of passageways formed 'therethrough, a removable plate mounted on thenpper surface of said body plate, a pluralityof downwardly extending pins. carr ed by the removable plate, said pins haying a reduced upper end, an enlargedlower end, and a'conical intermediate portion, the reduced end of'said pins being secured in the removable plate, said pins extending one into each of said passageways, wherein they are centrally located and of a way through the plate, said openings communicating with the smaller ends of frustoconical, passageways; a removable plate secured to said body plate in intimate contact therewith and disposed over the large ends of said frusto-conical passageways, said plate being formed with groups of perforz tions arnnged in spaced relation to each other around the longitudinal axis of saidpassageways; and pins carried by the removable plate, one "of said pins being located at the central axis of each passageway and extending therethrou 'h.

A paste forming diecomprising a body plate having a plurality of frnsto-conical recesses formed therein and disposed with their larger ends at the upper surface of said plate, the smaller ends of said recesses communicating with cylindrical openings, a

removable plate removably secured to said body plate in intimate contact with the upper surface thereof, said removable plate being formed with, groups. of perforations arranged in spaced relation to each other around the longitudinal axis and within the boundary of said'frusto-conical recesses,'and

downwardly extending pins carried by said removable plate and located concentrically with the sa d frusto-conical recesses and cylindrical openings,

A paste forming die comprising a body plate having a plurality of frusto-conical passageways formed therein and disposed with their larger ends at the upper surface i of said-plate, the smaller ends of said opening" terminatingin cylindrical openings, a

removable plate removabl'y secured to said body plate in intimate contact with the upper surface thereof, a plurality of downwardly extending pins carried .by said removable plate and located one. at the central axis of each of said passageways, said pins having reduced upper ends secured in said removable plate, the other end being disposed in said p'assagev. ays, said removable plate having groups of perforations formed therein, arranged'in spaced relation in a circle about said pin and within the boundary of said passageway k, s SEBASTIANO TOFANELLI.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4217083 *Mar 13, 1978Aug 12, 1980Diepal CorporationExtrusion head
US5002474 *Nov 28, 1989Mar 26, 1991E. I. Du Pont De Nemours And CompanySpinneret for dry spinning spandex yarns
Classifications
U.S. Classification425/190, 425/464
International ClassificationA21C11/00
Cooperative ClassificationA21C11/00
European ClassificationA21C11/00