US691572A - Paper-making machine. - Google Patents

Description

No. s9|,572. Patented 1an'. 21,1902.-l

A. ALpmcH. PAPER MAKING MACHINE Appcation led Apr. 3, 1961.) (No Model.) 2 Shasta-Sheet I.

No. s9|,572. A Patented 1an. 2|, i902.

I A. ALnmcH.

PAPER MAKING` MACHINE.

(Application lecl Apr. 3, 1901.) (No Model.) 2 Sheets-Shut 2` 'UNITED STATES PATENT OFFICE.y

ALONZO ALDRIOH, OF BELOIT, WISCONSIN.

PAPER-MAKING MACHINE. f

SPECIFICATION forming part of Letters Patent N o. 691,572, dated January 21, 1902. Application filed April 3, 1901. Serial No. 54.150. (No model.) l i .To all whom, t may concern:

Be it known that I, ALONZO ALDRIOH, a citizen of the United States, residing at Beloit, in the county of Rock and State of lVisconsin, have invented certain new and useful Improvements in Paper-Making Machines, of which the following is a specification.

The present invention relates tothe means for handling the rolls of a paper-making machine for the purpose of putting in place the endless aprons of wire, felt, orother fabric used in paper-making machines of this class.

The present invention is not limited in any way to the material of which the endless apron is made or to the particular set of rolls to which it is applied, but, on the contrary, is concerned only with the means for handling the rolls, and particularly the lower roll of a pair, whether these rolls be known as the press-rolls or otherwise..

In the accompanyingdrawingslhave shown the invention as being applied to the pressrolls, and for the sake of clearness and brevity I will confine the following description to this embodiment of the invention with the understanding, however, that the invention is not limited to rolls for any particular purpose or of any particular name, but, on the contrary, comprehends the features of novelty hereinafter described, regardless of the name-or disposition of the rolls to which said features may be applied.

Heretofore in machines of the class referred to the lower roll of a pair has been journaled in boxes, one of which is adapted to be removed w'hen the corresponding end of the roll is lifted. The boxin some instanceshas been so mounted upon the frame that it must be lifted away bodily, While in other instances it has been mounted on and carried bya swinging support pivoted to the frame and adapted to swing in a vertical plane. One objection to this arrangement is that the removal of the box from the journal makes itv necessary to thoroughly cleanse the journal of all grease before the apron is slipped over it. Another objection is that the boxes are very heavy and cumbersome, so that whether removable bodily or removable by reason of movement of the swinging support it is difficult to handle them. Another objection is that it requires considerable time to put on an apron by the old method, and as machines of this class represent the investment of large sums of money and areof large capacity the shutting down of one of them for any considerable time involves a considerable loss.

vBriefiy stated, the object of the present invention is to provide a machine of the class described with means not open to the abovestated objections for handling the lower roll when it is desired to place an endless apron upon it.l To thisendl provide the lower roll at the end to be manipulated with a box which completely surrounds the journal, and I secure together the parts of the box in such manner that the box will at all times surround the journal and be carried with it when the roll is lifted. This has the advantage of avoiding the necessity for cleaning the journal preparatory to placing the apron o ver it, and it has the further advantage that the powerful' support is removed free access to the end of-` the roll may be hadfand instead of mounting this support upon a horizontal axis, so that it swings in a vertical plane, as heretofore, I

mount it upon a vertical axis, so thatit swings in a horizontal plane, thus avoiding the ne-Y cessity for lifting it.

Inorder to move such a support into or out of position, it requires only sufficient force to overcome the friction in the pivotal joint, and this is slightas compared with the weight of the support itself. The invention consists in the features of novelty that are hereinafter described.

In the drawings which are made a part of so much of a paper-making machine as is necessary in order to illustrate the invention, the parts here shown being a pair of press-rolls with their accessories, including ad jacentportions of the frame and means for supporting and manipulating the rolls, the rolls being this specification, Figure 1 is an elevation of IOO shown in end elevation. Fig. 2 is a sectional elevation of the lower roll and some of its accessories, the roll being shown in side elevation and its boxes and accessories being shown in vertical section in the axial plane of the roll. Fig. 3 is an enlarged plan view of the swinging support for the journal-box and of a fragment of the adjacent portion of the frame. Fig. 4 is a vertical section thereof on the line 4 4, Fig. 3, looking in the direction of the arrow. Fig. 5 is an elevation of the swinging support and a vertical section of a fragment of the frame.

A represents the upper and B the lower of a pair of rolls known as press-rolls. The journal a, at each end of the upper roll is mounted to turn in a two-part box, the upper part C of which is carried by a lever D, fulcrumed at d to a hollow standard E, which is secured at its base to the side frame F of the machine. The lower part C of the journalbox is in the nature of a cap and is secured to the upper part by means of bolts c, so that as the levers D are moved about their fulcrums CZ the two-part boxes are moved up or down, as the case may be, and carry with them the journals a of the roll. The present invention is not, however,limited to the means for raising and lowering the upper roll A, and I therefore desire to have it understood that in this respect what is shown in the drawings is merely illustrative and is not to be taken as a part of the invention. lt is apparent that by applying force to the lower arm of the .lever D in the direction of the arrow placed upon it in Fig. 1 the upper roll will be raised and that upon the removal of this force the weight of lthe roll itself and its accessories will cause it to fall. For moving the lower arm of the lever in the direction of the arrow I may use a screw G, journaled in the standard E, so as to be incapable of end wise movement, a nut H, mounted upon the screw and engaging the lower arm of the lever, the latter being preferably bifurcated, so as to straddle the reduced portion of the nut, as indicatedv by dotted lines in Fig. 4, and suitable means, such as a crank-wheel I, for turning the screw. The journal l), at the front end of the lower roll B, is journaled in a two-part box, the upper part .l of which is in the nature of a cap which is secured by bolts] to the lower part J, the parts J and J' being so constructed that they completely inclose the journal. By reason of their being connected through the medium of the boltsj it is manifest that when the lower roll is lifted by a force applied to its journal the lower as well as the upper part of the box will be carried with it. The invention is not limited to the means for lifting the lower roll; but I prefer to use the means customarily7 used for this purpose-namely, a wrought-iron loopwhich is indicated by dotted lines at K in Fig. l. This loop is adapted to be slipped over the projecting portions of the journals a and b and is of such length that it will allow the upper roll to move upward a limited distance, say three-quarters of an inch, independently of the lower roll, whereupon the loop will engage the projecting portion of the journal b, after which the continued upward movement of the roll A will cause the roll B to be lifted.

Opposite the near end of the lower roll B the side frame F of the machine is depressed, as shown atf, in order to give free access to the end of the roll. Resting upon this depressed portion of the frame is a support L, upon which normally the lower section J of the journal-box of the roll B rests and is sup.- ported. When the lower roll and the journal-box are lifted, say, a sixteenth of an inch, in the manner above described orin any other manner, the supportL may be removed, thus leaving the space bounded by the `depressed portion of the frame unobstructed and facilitating the work of putting the apron in place on the roll B. For the purpose of avoiding the necessity for lifting the support L into and out of place it is supported by the frame through the medium of a vertical pivot M, which enables it to be swung in a horizontal plane. This pivot passes through an offset arm L of the support L and is supported by a lug or bracket F, projecting horizontally from the frame, this offset arrangement of the pivot being necessitated by reason of the fact that the standard E rises directly from the top of the frame in the plane of the journal-box of the lower roll.

For the purpose of arresting the further movement of the support L when in the process of putting it in place it reaches its proper position it is provided with a projection l, which engages the frame and acts as a stop.

For the purpose of preventing the journalbox from slipping upon the support in directions that are transverse to the axis of the roll the support is provided with a projection, preferably in the form of a feather Z', that is adapted to register with and enter a corresponding depression or groove in the under side of the lower section J of the box and hold the latter in proper alinement.

For the purpose of preventing endwise movement of the roll the far end b of its journal is provided with shoulders b, that are adapted to engage the box N. This rear journal-box may be without a cap; but if one is used it is preferably loose.

Having thus described my invention, what Iclaim as new therein, and desire to secure by Letters Patent, `is- 1. In a paper-making machine, the combination with the frame thereof and one of the rolls, of a box in which the journal of said roll is mounted, means for lifting the roll, means for causing the box to be carried by the journal as the roll is lifted, a swinging support for the box, separable therefrom, and a vertical pivot u pon which said support is mounted so as to be capable of swinging ina horizontal plane, substantially as described.

3. In a paper-making machine, the combi- IOC) IIO

nation with the frame thereof and one of the rolls, of a box in which the journal of said roll is mounted, means for lifting the roll, means for-causing the box to be carried b y the journal as the roll is lifted, a swinging support for the box separable therefrom, a vertical pivot upon which said support is mounted to swing, and means for preventing the endwise movement of the roll when the swinging support is in place, substantially as described.

3. In a paper-making machine, the combination with the frame thereof and one of the rolls, of a box in which the journal of said roll is mounted, said journal having shoulders engaging the box and preventing endwise movement of the roll, means for lifting the end of the roll opposite said journal, a box in which the journal at the lat-ter end of the roll is mounted, means for causing the latter box to be carried as the roll`is lifted, a swinging support for the latter box separable therefrom, and a vertical pivot upon which said supportis mounted, substantially as described.

4. In a paper-making machine, the combination with the frame thereof and one of the rolls, of a box in which the journal of said roll is mounted, said box comprising a lower section, an upper section or cap, and means securing said sections together, so that they will be carried by the journal as the roll is lifted, means for lifting the roll, a swinging support for the box separable therefrom, and a vertical pivot upon which said support is mounted to swing, substantially as described.

5. In a paper-making machine, the combination with the frame thereof and one of the rolls, of a box in which therjournal of said roll is mounted, means for lifting the roll,

-means for causing the box to .be carried by rolls, of a box in which the journal of saidroll is mounted, means for lifting the roll, means for causing the box to be carried by the journal as the roll is lifted, a swinging support for the box separable therefrom, a vertical pivot upon which said support is mounted to swing in a horizontal plane, andr a stop for limiting the movement of the support as it is being swung into operative posi tion, 'substantially as described.

7. vIn a paper-making machine, the combination with the frame F thereof and a pair of rolls, of means for supporting the upper roll, said means including a standard vE rising from the frame F, a box in which the lower roll is journaled, said box being located in the vertical plane of the standard E and frame F, a swinging support for the box separable therefrom, the frame having a'depressed portion upon which said support is adapted to bear, said support having an offset-arm L lying out of the plane of the standard E', and a vertical pivot upon which said arm is mounted to swing, substantially as described.

ALONZO ALDRIOH.

Witnesses:

EDWARD H. ALLING, L. M. HOPKINS.

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