US1359898A - Journal-box - Google Patents

Description

D. JENKINS AND L, G. WILLSON.

JOURNAL BOX.

APPLICATION FILED APR.2!,1919.

Patented Nov. 23, 1920.

. of x INVENTORS {.Z W ma W ATTORNEYS UNITED STATES! PATENT QFFICE.

,DAVID JENKINSAND LYMAN e. wrtnsou, or G nNsrALLs, NEW YORK.

JOU NAL-Box.

Application filedjtpril 21, 1919. "Serial No. 291,712..

ticularly to journal boxes for supporting the journals of the calender rollsof paper calendering machines. In these machines the calender rolls are arranged one'above the other so that the peripheral surfaces of adjacent rollswill engage and press upon the paper sheet passing between them, the journals of the 4 rolls being mounted in journal boxes arranged one above the other in guideways in a suitable sustaining frame, and the boxes being formedavith' annular cores or chambers which as heretofore constructed surrounded the journal, bearings, for the circulationof a cooling medium to prevent the bearing surfaces from becoming overheated. i

. In the use of the apparatus, it is'the practice to grind or dress down the peripheral surfaces of the rolls from time to time to I keep them in proper. condition to perform their calendering action, and as the. diameters of the rolls decrease from such treatment, the ends of the contiguous journal has been restricted so that the boxes" soon boxes are brought closer together, andthis requires that the endsof these boxes be in'achined down to keepthem properly spaced so that the rollswill properly engage with andpress upon the paper sheet. Due to the fact that the cores or cooling chambers in the boxes completely surround theopenings therein, this machining down of thebo'xes became unfit for further useand it-was necessary to discard-them as well 'as the old rolls and provide new ones. This ofcourse is objectionable for fmany reasons, mainly on account of the expense involved." Itisthe chief aim of the presentfinvention to overcome this objectionand" to permit the use of theboxesand rolls to. be 'pro-- longerhand the invention consists in ajournal box in which the-cooling .chamber or chambers are confinetl-tolhesid or sides of the same, thereby leaving theends of the boxes intact and solid and free from cores.v

or chambers; Due to this construction, a far "greater amount of material is left at the ends of theboxes than where the cooling chambers are extended around the ends as heretofore, and consequently a greater 7 amount of machining is permitted without Fig. 4 is an end elevation of a series or,

stack of calender rolls mounted injournal boxes constructed in accordance with our invention.

1 designatesan upright frame formed at the front and rear with vertical guideways in which are mounted, one above the other, two sets of journal boxes 2. in which are rotatably mounted the end journals 3 on a series of calender rolls 4, the boxes being separated from each other to permit the peripheral surfaces of adj acentrolls tocon tact with and pass upon the paper sheet passing between them. In, theoperation of the apparatus, the dried paper sheet 5 from the drying rolls of the paper making machine, passes between the contiguous calender rolls, alternately around the {opposite sides of the same, and by the action of the rolls,

the paper is givenits calen dered finish."

Our invention has to do with the specific.

form of the journal boxes, and one' 'part of Specification of Letters Patent. Patented NOV. 23, 1920; 7

the invention relates to the form and arrangeinent of the core or cooling chamber with which such boxes arevusually provided, which heretoforehave extended wholly or nearlyaround the journal hearing. In ac cordance with our invention we restrict this chamber to theside orside's of the box, as

shown more particularly i112, 3'and 4. Here it. will be seen that the body of the box is'cored out'at opposite sidesjto'form two opposing arcuate internal ichambers 6' which extend-for a comparatively-short distance" "at the opposite sides of the bearing opening 7, thereby leaving the 'upper'and lower ends ofthe box intact and solid asat Inother words, the ends of the two cooling.cha'ri'ibers terminate, inward of the upper and lower-ends of the box. As a result of this form and. disposition of the cooling? the draw sides of chambers,- the ends of box be ground i proper operative relations to each other to act on thepaper passing between them, as

the rolls are reduced in diameter in the.

dressing down of the surfaces from time to time. Consequently, the life of the rolls will be greatly prolonged and it will not be necessary to discard them and furnish new rolls at such frequent intervals, as would be the case if the grinding of the boxes was limited by the presence of the cooling chambers at the ends of the same as heretofore.

lVith the bearing boxes arranged one above the other in the supporting frame, as shownin Fig. 4, the cooling chambers on the respective boxes are connected together by means of flexible pipes or hose, a pipe 9 being connected at one end with the upper end of the chamber on the draw side of thejournal box of one roll, and'being extended thence to the next box beneath, and connected at its opposite end to the lower end of the cooling chamber on the draw side of that box, and a second pipe 10 being connected at its upper end to the upper end of the last mentioned chamber 3 O,

and being extended thence to the opposite side of the next box beneath and'connected at its lower end to the lower end of the chamber of the latter box, and so on throughout the series, so that the water or other cooling medium willbe circulated through the cooling chambers on the draw sides only of the several boxes.

In the foregoing description and acconr panying drawings, we have set forth our construction in the particular detailed form and construction which we prefer to adopt and which in practice has been found to answer to a satisfactory degree the ends to be attained. It will be manifest, however,

' that these details may be variously changed and modified by the skilled mechanic without departing from the limits of our invention; and further it will be understood that the invention is not limited to any particular form or construction ofthe parts except in so far as such limitations are specitied in the claims.

Having thus described our invention, its construction and mode of operation, what Weclaim and desire to secure by U. S. Letters Patent, is as follows: 7

1. A journal box comprising a body portion having a bearing opening therein and provided with solid end portions extending radially respectively from opposite sides of the bearing opening to the end faces of the box, the said body portion being providedbetween said end portions and at the side of the bearing opening with a cooling chamber terminating at its two ends a sub- .at their ends inward of the ends frame, a

stantial distance inward of the end:- f ancs of the box; whereby the ends'of the body portion of the box are left intact and may be ground down without injury to the'cooh ing chamber.

2. A journal box comprising a body'por -f tion having a bearing openintherein, and provided at opposite sides out said bearing" opening with separate cooling chambers diseconnected from each other and te'i niinatingfg, saith ends body portion, thereby leaving s'a solid and intact.

3. In combination with a supporting, frame, a series of journal boxes mounted} therein one above the other, and providerl bearing openings, calender rolls provided with ournals mounted in said bearing openings, said journal boxes being provided with solid end portions extending radially respectively from opposite sides of the hearing opening to the end faces of the box, said body portions being provided between said end faces and at opposite sides of the bear.- ing opening, with cooling chambers terminating at their ends inward of the endsof the box; whereby the end portions of the box are left intact andmay be ground down without injury to the cooling chambers.

4-. In combination with a supporting? series of journal boxes moanted therein one above the other and proa ided V with bearing openings, calendar rolls pro vided with journals mounted in the respec tive bearing openings, said journal box-cs being formed with solid end portions extending from the bearing openings radially outward to the end faces of the boxes, and said boxes being provided further each with cooling chambers at opposite sides of the bearing openings and disconnected from) each other, and a communicating connection between each cooling chamber onron e sideof one box and the'cooling chamber on the .opposite side of the box beneath.

5, In combination with a supporting frame, a series of journal boxes mounted therein one above the-other and provided with bearing openings, calender rolls'pr'ovided with journals mounted in therespec i. tive bearing openings, said journal boxes? being formed with solid end portions ex tending from the bearing openings radially outward tothe end faces ofthe boxes, and:

, bearing openings, and. a communicating pipe v connected to the cooling chamber of each box at one side and to the cooling chamber at the opposite side of the box beneath.

In testimony whereof we have affixed our signatures hereto;

iivie ENKINS. LYMAN WILLSON.

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