US509930A - Machine - Google Patents

Description

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U. MOORE. CALBNDBRING MACHINE.

Patented Deo. 5, 1893.l

n No. 509,930.

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f 3 Sheets-Sheet''. C. MO O R E.

GALENDBRING MACHINE.

Patented Deo. 5, 1893.

' UNrrs STATES PATENT Fries.

CHARLES MOORE, OF ANSONIA, CONNECTICUT, ASSIGNOR TO THE FARREL FOUNDRY AND MACHINE COMPANY, OF SAME PLACE.

CALENDERlNGfMACHlNE.

SPECIFICATION forming part of Letters Patent N o. 509,930, dated December 5, 1893.

Application filed July 20, 18 92. Serial No. 440,626. (No model.)

`T a/ZZ whom t may concern.- f

Be itknown that I, CHARLES MOORE, of Ansonia', in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Calendering-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to 1o make and use the same.

-My invention relates to that class of machinery used in paper and other manufactories where the material is passed through calender-rolls for compressing, glossing or finishing, and it consists in open faced housings or frames, a series of bearings secured at one side only to said housingandaseries orstack of calender-rolls mounted at their ends in said bearings, whereby any one of the rolls of the zo series or stack can be removed from and replaced without disturbing the other rolls of the series.

My invention'further consistsin devices for raising and supporting a roll or series of rolls 2 5 While the roll immediately below is being removed or replaced.

My invention further consists in improved devices for applying and regulating pressure on the upper of the series or stack of rolls.

3o My invention further consists in the parts and combinations of parts as will be more fully described and pointed out in the claims.

In the accompanying drawings, Figure l is a view in perspective of a machine embodying my invention. Fig. 2 is a View in end elevation of same. Fig. 3 is a view in horizontal section through one ofthe bearings and the portion of the housing to which the bearings are attached. Fig. 4 is a view in eleva- 4o tion from the rear, showing the upper end of one of the sides of the housing the llexible sling and the means for securing the sling to the screw and housing. Fig. 4a is a view in end elevation of same, and Fig. 5 is a view in vertical section through the upper end of the housing showing the devices for transmitting pressure to the rolls.

A represents vthe end frames or housings each having an extension A', at the base, on

5o which are supported the bearing blocks B of the lower calendering roll C. The ends of rolls C are reduced forming end trunnions and the blocks B supporting said end trunnions are adjustable laterally or sidewise by the screws a and b, so that the bottom boxes can be adjusted, each end independently of the other.

The front or bearing face D of each end frame or housing A is T-shaped in cross section as clearly shown in Fig. 3, and each bear- 6o ing box E supporting the rolls Fis provided with a flat face c for contact with the front face D of the housing A, and with side lips c2 of a length equal to the thickness of the combined face and guide G of the housing. Thus it will be seen that when the bearing boxes E are in position they not only rest solidly against the outer faces D of the parts G, but the lips c2 of said boxes overlap the sides of part G and prevent endwise movement. go The several boxes E supporting the rolls F are secured against outward displacement by the plates d(see Fig. 3),secured to lips c2 and overlapping the rear faces of the part G of the housing. The calender rolls rest upon one another. Hence so far as vertical bearing is concerned the rolls F support the boxes E, y while the latter being secured against outward movement retain the rolls in vertical line. The boxes E are free to slide vertically 8o on the parts G. Heneethe weight of the rolls is practically borne by the lower roll C which is the driving roll of the series. f

At each end ot' the machine a rocker lever H is secured or integral with a short shaft H the latter being mounted in the saddle or cap H2 of the housing A. This shaft is provided within the housing with a cam hwhch bears upon the upper end of pitman or thrust rod h the lower end of said pitman or thrust rod 9o resting against the top of the upper of tue series of boxes E. The rocker lever H is conneet-ed b v tension rod H5 to the lever H4 pivoted at h3 to the housing, and the lever H4 is connected in turn by rod h4 to the lever H5 95 near the pivotal point of the latter. Each lever H5 carries a movable Weight by means of which the pressure on the rolls can be regulated. The weight on lever H5 forces down the free end of the lever and through the inroo tervention of rod h4, lever H4, tension rod H3 and rocker lever H turns shaft H in a direction to force pitnian or thrust rod h' downwardly. This pressure' can be regulated by simply moving the weight toward rod h4 when it is desired to decrease the pressure, and away from said pitman when it is desired to increase the pressure.

In a stack of calender rolls the lower roll C is the driving roll being connected to a driving shaft (not shown) by a clutch I. I also prefer to provide the center roll of the series with a hand wheel t' by which it can be ro tated when circumstances require it.

In Fig. 1 I have' shown one of the rolls 're'- moved and suspended in a position in front of the machine. To remove any one of the rolls it is first necessary to slightly elevato all of the rolls above the one to be removed and hold tli'en' elevated untilthe roll has been removed and replaced, or if it is not intended to lreplacevthe roll at once, the suspended rolls can be lowered and thus close the space formerly occupied by the removed roll. In any' event itis first necessary to elevate the rolls above the one to be removed so as torelieve thepre'ssnre on the latter, and hold them elevated while the roll is being removed. This is accomplished by the flexible slings or yokes J. 'lh'se'sliugs or yokes J each consist of a wir,heinp' orother flexible rope or chain' secured at one end to the' lower end of screw rod 'Kor other equivalent device. This rod K passes `through an opening in the seat k integral with the saddle or cap, and through thfscrew' threaded hub of the hand wheel L whiclilattei rests'on said seat lr.

Th'e free ends'of the slings are passed underthe reduced ends or trunnions of the roll next ab'ovethe roll to be removed and are thenc'arried upwardly over the grooved saddle H2, and from thence to the rear of the rolls. The rope is then drawn taut, and clamped against the side of housing by the clamp N. After b'oth slings have been thus secured the hand wheels L are turned in a direction to elevate the rolls F above the one to be removed. Ropes or `chains O are then attached to the ends of the roll to be removed and to a hook or block suspended from a crane or derrick or other movable or stationary support, and aredrawn taut to prevent the roll from falling. After these preliminary steps have been taken, the plates d are removed leaving the roll with its boxes thereon supported by the ropes or chains O and free to be removed. After the roll has been removed, the upper rolls'fcan be lowered until the space formerly occupied by the roll removed has been filled by the roll next above or they'can be held by the slings until the roll has been replaced.

From the'foregoing it will be seen that by making an open housing,or a housing adapted to `engage one side only of the boxes, it is comparatively little trouble to remove any one ormore of the rolls, and by removing the rolls from the front instead of from one end or the top they are less liable to be injured during the operation.

It is evident that slight changesmight resorted to in the form and arrangement of the several part-s described without d'epart ing from the spirit and scope of my invention and hence I do not wish to limit myself to the exact construction herein set forth, but

I-Iaving fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a calendering or like machine, the combination with open faced frames or housin gs' each having an approximately T-shaped guide, of boxes recessed to embrace the front face and sides of said guides, removable plates secured to the boxes andvoverlapplng the rear face of the guides and rolls mounted lat their ends in said boxes.

combination with the main frame or housing' having T- shaped guides, of rolls, and jouir# nal boxes constructed to receive and form bearings for said rolls, said boxes'A having cheeks thereon which embrace the sides of the guides, removable plates in rear of the guides and means for securing said plates to the cheeks whereby to hold the boxes remov-` ably in place on the guides, substantially as set forth.

4. In a calendering or like machine, the combination with open faced housings, a se'- ries of boxes secured to each housing but free to slide vertically thereon, and rolls mounted at their ends in Vsaid boxes, of flexible slings each secured at one end to ascrew, the said slings adapted to be passed'under the roll, or lower roll of the series, to be elevated around the rolls above the lower roll, and up and over to the rear face o f the housing and a clamp for clamping the free end of each slingto the housing, substantially as set forth.

v5. In a calendering or like machinel the combination with open faced housings' or frames, a series of boxes secured to said housings but free to slide vertically thereon, and rolls mounted in sa'id'box'es and'prevented from lateral displacement thereby, of liexible slings adapted to be passed between the ends of any two adjacent rolls of the series, and means for raising the series of rolls so encircled by the slings and thereby permitting of the removal of the roll below such suspended roll or rolls.

6. In a calendering or like machine, the' combination with open faced housings, a series of boxes free to move vertically but held IOO against;lateral'displacement.,and'rolls mount- In testimony whereof I have signed-"thisff ed on said boxes, of a shaft in each housing, yspecification in the presence of two subscrbro;

means actuated thereby for forcing the boxes ing witnesses.

of the upper roll downwardly, a pair of rocker levers, tension rods connecting the rocker le- CHARLES MOORE' vors together, a weighted lever and rods con- Witnesses:

necting the Weighted lever to one of the v MELVILLE C. HITCHCOCK,

rocker levers, substantially as set forth. WILLIAM H. FOSTER.

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