US941884A - Pulp-shaping machine. - Google Patents

Description

A.- KOMP.

PULP SEAPING MACHINE; i APPLIogTIoN FILED MAY zo, 199e.

Patented Nov. 30, 1909.

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ivainstinctif-KoMP, or New YORK, n. Y.

i, ruhr-summe MAHINE.:

` Application filed May 20, 1908. Serial No. 433,803..

To allwhomfitmay concern."

Be 1t known that I, ALBERT Korir, a citizen o f theUn'ited Stat-es, and a Vresident of the city of,l New York, .borough of Brooklyn,

county of 'Kingsyan'd State of New York, have invented a' ,new and Improved Pulp-y Shaping Machine, of which the following is a full, clear, and exact description.

This `invention is apulp shaping machine, relating more especially to improvements in machines of the character disclosed in Lett'ers'Patent No. 868,946, granted to me'Octo- -ber 22,1907. 1

In practice I have found thatconsiderable difliculty `is experienced in detaching the shaped article from one of the dies, owing primarily tov the enormous pressure under which the pulp is placed. This pressure also causes the rubber face or covering of the die to wrinkle or buckle, leaving ridges in the resulting product which it is necessary to remove ordinarily by sand papering before the article is finished. I. find that I Aamenabledto overcome these objections by using in ,the place of the rubber covering of the die, a thin resilient cover, preferably of sheet metal, which is detachable with the article produced. This cover gives a smooth finish, requiring no further work for its completion.

lThe invention further contemplates theJ provisionof means for locking one of the dies successively closer to the other die 'after each movement of the latter, whereby the pulp .may be subjected to repeated and increasing pressures.

Reference is to be had to the accompanyling,dr'a'wings'forming a part of this speciication, in which similar characters of reference indicate corresponding parts in all the views.

Fi `ure 1 is a front elevation of a pulp y shapingV machine partly in central vertical section, disclosing the nature of my improvements; Fig. 2 is an enlarged central sectional view of the dies; and Fig. 3 is a perspectiveviewof the detachable die cover.

I have shown'the frame of the machine to whichmy improvements are applied composed of a base block 5 and a head block 6,

"rigidly connected together at opposite sides by upright standards 7. Under the base block is journaled a shaft 8 having an eccentric 9 and a driving pulley 10 attached l thereto. Slidable centrally through thebase block 5, and resting. on the eccentric, is the plunger or stem y11 of a female 'die 1.2,.which is shown for convenience in the shape of a basin and provided at its' upper edge-,with an upright cylinder 13.

In the upper portion, of the machine is Journaled a shaft 14, driven throu h a gear 15 or other suitable means, and aving a pinion y16, attached thereto between the-l standards 7 which is in mesh with the teeth of a rack-bar 17. This bar is slidable throughthe to block 6 and carries at its lower end a ma e die 18, which as shown, -is made as a part of a piston head slidably fitting within the c linder 13..' The piston head is constructs `with a packing ring 19,

spemcation f Letters raient. Patented Nov, 30,y 1909, l'

between which and the male die 18 are prov vided suitable recesses for frictionally engaging the ears 20, four being shown, formed integrally with a detachabledie cover 2 1, best shown in Fig. 3, and forming one of the principal features of my improvement.

This cover is made of a thin resilient mate- As the upper die is forced firmly to the pulpl in the lower die, the locking arm 22 is thrown inwardly and engages the upper end of therack-bar with the top lshoulder of the stepped portion 23. The shaft 8 is then set in motion and forces the lower die by means of the eccentric to the upper die, thus further compressing the pulp. As the eccentric makes a complete revolution, the upper die will drop down sufciently for the locking arm to engage the rack-bar with its second s houlder, and this operation continued unt1l the pulp has been compressed to the.required point. lVhen theupper die 1s withdrawn from the lower die, the article adheres to the detachable cover 21 and with it is removed. The cover is bodily removed from the finon the edge, when the cover flies out by rea- Y produced, I mean separating in mass, as, distinguished from removal by successive portlons.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In a machine for shaping pulp articles, a die having a piston head provided with a piston ring, and a thin flexible cover for the die having projecting ears adapted to be frictionally engaged between the piston head and ring.

2. In a machine for shaping pulp articles, the combination of two dies between which the article is formed, means for moving one die toward the other, and means for locking the other die successively closer to the first mentioned die after each movement thereof.

3. In a machine for shaping pulp articles, the combination of two dies between which the article is formed, means for repeatedly moving one die toward the other, and an arm having a stepped end for locking the other die successively closer to theirst mentioned die after each movement thereof.-

4. In a machine for shaping pulp articles, the combination of two dies between which the article is formed, means for reciprocating one of said dies, and means for locking/'35 the other dieI closer to the first mentioned/611e after each-reciprocation thereof. l

5. In a machine for shaping pulp/articles, the combination of two dies, a` reciprocating 'ziember carrying one of said dies,'and a de- 4e vice for en'gagin said member and locking the die carried t ereby in positions successlvely closer to the other die after each application of pressure `to the article.

6. In-a machine for shaping pul articles, the combination of a male and a emale die between which the article is formed, and aI relatively thin resilient cover for the lnale die` removable therefrom with the article produced and adapted to be bodily sprung from said article, said die cover having a closed bottom on which the end of the male die seats. H

7. In a machine for shaping pulp articles,

the combination of two d1es between 'which 5 5' the article is formed, and a die cover of resilientsheet material, detachably connected to one ofsaid dies, said cover having'sdes inclining in a direction to facilitate its removal from the finished article.

In testimony whereof I have signed'nxy name to this specification in the presence of two subscribing witnesses.

. ALBERT Korir."v

Witnesses:

WV. WV. I-IoL'r, JOHN I. DAVIS.

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