US312314A - Cornelius young - Google Patents

Description

(No Model.) 2 Sheets.Sneet 1.

O. YOUNG.

STUFF REGULATOR FOR PAPER MACHINES.

Patented Feb. 17

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. 2 Sh-eetsSheet 2. O. YOUNG.

STUFF REGULATOR FOR PAPER MACHINES. No. 312,314.

Patented Feb. 17

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CORNELIUS YOUNG, OF SANDY HILL, NE\V YORK, ASSIGNOR TO HOWLAND & 00., OF SAME PLACE.

STUFF-REGULATOR FOR PAPER-MACHINES.

SPECIFICATION forming part of Letters Patent No. 312,314, dated February 17, 1885.

Appication filed April l5, 1864. (No model i To all whom, it may concern.-

Be it known that 1, CORNELIUS YOUNG, a resident of Sandy Hill, in the county of \Vashington and State of New York, have invented certain new and useful Improvements in Stuff- Regulators for Paper-Machines; and I do hereby declare that the following is a full, clear, and exact description of the invention, that will enable others skilled in the art to which it appertains to make and use the same,

reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

Similar letters refer to similar parts in the several figures therein.

My invention relates to improvements in stutfregulators for paper-machines; and it consists in providing an adjustable gate, the

movements of which are automatically con trolled by the movements of a balanced stuffchute, and in providing the stuff-box with a vertically-sliding gate.

The object of my invention is to regulate the flow ofpulp or stuff from the stuff-box to the paper-machine proper.

Figure l of the drawings is a plan view of a stuff-box provided with my improved de vice. Fig. 2 is a vertical section of same taken at broken line .90 y in Fig. 1. Fig. 3 is a front elevation of same, with part of front wall broken away to show gate I closed. Fig. i is same showing gate I open. Fig. 5 is a perspective of gate I and pivoted arms.

5 The box is divided by partitions A, B, and

G into four compartments. One of the compartments is provided with one or more apertures, c e, in the bottom,'through which the stuff is forced by a pump into the box, until 0 the compartment is filled to the top of partition 0, when it flows over between G and D into the next compartment, which retains the stuff until filled to the top of partition B,

which extends across the box from block T to 5 block T, the blocks serving to narrow the compartment on the side next the partition B. When this compartment is filled, the stuff flows over partition B, one portion entering the chute H, from which it is conveyed to the paper-machine proper, and the other portion into the compartment provided with outlet g, through which it flows back to the reservoir from which it was originally pumped into the box. The thickness and weight of paper produced depend upon the thickness and rapidity of flow of stuff to the machine. As the thickness or quality of stuff is not subject to absolute control, uniformity in the weight of paper produced must be secured by subjecting the rapidity of flow to the quality of the stuff. Such, control has been heretofore attempted in various waysby means of valves or adjustable gates controlled by an attendant or by floats and balances.

I make use of an adjustable gate, I, attached 6 to one side of the box by means of the parallel arms a a, which are pivoted one end to the gate and the other end to the block T, so that when the gate is lifted it travels horizontally away from the side of the box to which the arms are pivoted, and when it is allowed to fall it travels toward said side ofthe box. I also use another adjustable ate, G, supported by rod 0, on which it is adapted to slide to and fro between the blocks TT, the lower endvofthe gate resting upon the upper edge of partition B, or a metallic strip, in, projecting therefrom. The gate is also provided with a threaded arm passing through stop a, fixed upon rod c,having adjusting-nuts a, by means of which the gate may be secured in different positions. By sliding gate G toward gate I the opening 0 is diminished in size, and less stuff will flow to the machine, the opening I) will be increased in size, and more stuff will escape by 8 outlet By sliding gate G in the opposite direction toward opening b more stufi' is allowed to flow to the machine and less back to the stuff-reservoir through outlet 9. The gate G is therefore first set at the proper point to 0 make paper of the desired weight with a constant flow of the stuff to be used,provided the flow is even in quantity; but experience shows the impossibility of securing such a flow. The pump forces a constant quantity 5 into the box; but the thickness-i. 6., the relative quantity of pulp and water-varies continually. When the stuff flows thick, more of it must be held back from the machine, and diverted to the outlet 9, and when it flows thin [00 a greater supply must be sent to the machine. I upward about half the height of the box, and

This I am able to accomplish by means of the gate I, which is connected by link P with one end of sweep O, the other end of the sweep being connected by link Q and bail R with the chute H at one end, the other end of the chute being hinged upon partition B directly beneath theopening C, so that the stuff which goes to the machine passes through the chute. The weight of the stuff in the chute will depress its projecting end,which raises the gate I and, as before explained, narrows the opening 0. By means of the weight W, adapted to slide upon the sweep O, and the spring S the gravity of the stuff in the hinged chute may be balanced to secure the desired width of opening 0. After the respective parts have been once adjusted to producepaper ofa given weight from a constant flow of stuff of known average quality they will thereafter be auto matically adjusted to the varying quality of stuff as the latter passes through and from the stulf-box. If the stuff suddenly thick ens, its progress upon the chute is slower, and it dams up, as it were, thereon. The additional weight overcomes the force of the spring S, and the gate I is elevated and forced toward opening 0 to close the latter, which forces a larger proportion of the stuff through opening b, and admits a smaller quantity to the chute and machine. If the stuff is thinner than the average, it flows more readily from the chute, leaving a less and lighter quantity thereon, which lowers the gate and widens the opening 0 and permits a larger flow of stuff to the chute and machine.

Fig.' 3 shows the gate closed to narrow opening 0', and Fig. 4 shows the gate opened to widen opening 0.

In Fig. 2 I have shown the link Q in two slotted lapping parts, which permits of its longitudinal adjustment by means of the thumbscrew q. The spring S is also attached to its supporting-arm L by a threaded rod, which permits of the adjustment of the spring by thumb-screw t.

I have shown sweep O pivoted at the arm 3 butit may be pivoted at arm 13 instead, through another aperture in the sweep, to change the leverage of chute and'gate.

In Figs. 3 and4 I have shown the supporting-arm d vertically adjustable upon the upright K by means of set-screw a.

To prevent a sudden rush of thick pulp upon the chute, which might cause it to overflow, I provide the partitions D and O, the latter extending from the bot-tom of the box the former being situated a little one side of the latter and extending both above and below the I top of 0. It can be slid vertically in grooves V in the sides of the box.

\Vhen the stuff is of the usual thickness, it

flows through the aperture between D and O, and does not attain a level much above the top ofoutlet-partitionB or m,- but if aconsiderable quantity of thick stuff is suddenly forced into the compartment D it will not run so freely between D and G, and rises in the compartment D until the stufl' runs thinner, or until its height afiords suificient pressure to force it through the opening.

By raising or lowering the sliding partition D the narrow opening between it and C is lengthened or shortened, which gives it more resistance when lengthened and less when shortened. I am thus able to secure a perfect adjustment of the flow of stuff to the machine automatically and produce an even quality of paper.

\Vhat I claim as new, and desire to secure by Letters-Patent, is-

I. A stuff-box provided with two outlets, one having a pivoted gate and leading to a paper-machine and the other to the stu fl -reservoir, in combination with said pivoted gate, a hinged spring-controlled chute which re ceives and transmits the stud in its passage from said box to said machine, a pivoted sweep, and connecting-links by which said chute acts upon said gate, all substantially as described, and for the purposes set forth.

2. A stuff-box provided with one or more inlets, e, at or near its bottom, and an outlet, 0, about midway between its top and bottom, in combination with fixed partition 0, located between said outlet and inlets, extending upward to about the same level occupied by said outlet, the vertically-sliding partition D, slightly removed from partition 0, and parallel therewith, and the channel E between said partitions, substantially as and for the purposes set forth.

3. In a stuff-box, the combination of an adjustable sliding gate, G, adjustable gate I, a hinged spring-controlled chute, H, lever O, and connecting'links P and Q, substantially as and for the purposes set forth.

In testimony whereof I have hereunto set my hand this 8d. day of April, 1884.

CORNELIUS YOUNG.

Witnesses:

L. B. BRooKs, JOHN I-IARFORD.

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