US1752147A

US1752147A - Tension regulator

Info

Publication number: US1752147A
Application number: US286923A
Authority: US
Inventors: Lynn B Case
Original assignee: JOHN WALDRON CORP
Current assignee: JOHN WALDRON Corp
Priority date: 1926-06-11
Filing date: 1928-06-20
Publication date: 1930-03-25
Anticipated expiration: 1947-03-25

Description

March 25, 1930. L B. CASE TENSION REGULATOR Fled June 20, 1928 kPatented Mar. 25, 1930 n UNITEDv ,STATES *.Argsr .FricE-i LYNN B. CASE, or HIGHLAND PARK, NEW JERSEY, AssreNoR To .Toi-INWALDRON CORPORATION, OF NEW JERSEY v BRUNSWICK, NEW' JERSEY, A yCORPORA'JIION OF vNEW TENSION REGULATOR Original application led June 11, 1926, Serial No. 115,398. Divided and this application led .'lkune20p 192s. serial No. 286,923. j

- This invention relates to machines for coating web material, such as that shown and described in. my co-pending application for l U-S.`Letters Patent, Serial No. 115,398, filed June 111, 1926, of which the present application is a division.

The present application is directed to means for controlling the amount of braking friction applied to the roll of stock in order to maintain the proper amountv of tension on the web as it passes through the machine. i Referring tothe single ligure of the drawing, one of the side frames of the machine is illustrated at 1, it being understood that a similar frame is located at the opposite side of the machine for providing a suitable'support for the elements of the machine.

The web material to be coated is placed'.

A upon the machine in the form of a roll a', be-

ing rotatably mounted on the side frames, and placed under the controlv of brakingy mechanism hereinafter more fully described, and whereby the rotation of the roll is retarded.

The material passes from the roll m in the form of a Yweb m1 under a guide roll 2 rotatably mounted on the side frames l, then over a second guide roll 3, and thereafter passing Y under a guide roll 4. The web w1 then passes over a guide roll Gand under a chilled iron roll 7. Each of said rollers is rotatably mounted in suitable bearings secured to the side frames 1 of the machine. i

Parallel to and adjacent the roll 7 is a roll 12 which supports one end of an apron 15, the opposite end of which passes around and is supported by a second roll 16. The apronf` 15 may be composed of rubber or other suitable material.

Intermediate the rolls 12 and 16 is a coating table 20 over which the apron 15 passes, the web w1 also passing over the table 20 in contact with the upper surface'of'the apron 15. Y The web w1 passes fr om the apron 15 onto aperforated belt 21, rotatably-supported on

rollers

23 and 24 suitably mounted on the frames 1.

Intermediate the

rolls

23 and 24 is a vacuv um box 25 which produces a suction through the perforations of that portion of the belt 21 immediately overlying the vacuum box 25.

kThe web m1, in passing from the apron 15, lies in contact with the upper run of the belt' 21,

and by meansA of the vacuum boX 25 is maintained in substantially rigid contact with the belt 21.

The coating material is applied to the web m1 immediately adjacent the roll 7 by means of a revolving brush 26,'the brush`26 receiving a supply of coating material from a tank 27 by means of a color rolll 28 which is maintained at a position partially submerged in rial is accomplished by means of a series of batteries of vibrating brushes illustrated at 30, 31 and 32. The operation of the elements of the machine is described in the above mentioned copending application, and therefore will not be reiterated in this application. A pulley 100 is secured to a shaft 101 rotatably mounted in bearings on the main frames of the machine, and is adapted to supl ply power to the perforated belt 21 for drawing the lweb x1 through the machine. Se-

Y cured to the shaft 101 is a sprocket wheel 102 connected by vmeans of a sprocket chain'V 103 with a sprocket 104 secured to a shaft 18,

from which the belt 15 isV driven by ymeans of a ksecond sprocket wheel 105` connected by a sprocket chain 106 with a sprocket 107 secured to one lof the trunnions of theroller rotatably mounted in bearings 126-at the respective ends thereof, each bearing being secured to a beam 127 mounted on the main frames 1, 1, respectively, by means of

roller bearings

128, 128. AY brake drum 129 is secured to one end of the shaft 125 and is operatively engaged and partially encircled by a. brake band 130, one end of which is adjustably secured to the adj acentbeam 127, the other end thereof being pivoted to one leg g of a bell crank lever 131 pivoted at 132 to the said beam 127. The other leg 133 of the bell crank lever is in the form of a wedge and is adapted to have itsangular side engaged by aroller '134 lrotatably lmounted on the frame 1. The opposite end 4ot each of thebeams 127 is provided with a gearraclr I135, meshingwith a pinion 136, secured to a shaft v13'? rotatably mounted in the trames 1, 1. A plain Jraced wheel 138 is secured to the shaft 137 and hasone end of a strap 139 secured thereto,the strap passing around a pulley 140 and Ahaving an adjustable weight,

- comprising removable discs 141, suspended on its free end.

The weights 14:1 tend to torce the.

supportingybeams

127, 127, with'the roll fr and the bell cranl; lever 131 outward, untilY the bell crankisengagedby .the roller 13st,'the arm 133 ythereof being depressed and thereby tightening the brake band i130 on the drum v129, retarding'the rotation ot' the roll a and applying tension to the web x1. As the tension becomes abnormal the entire structure of beams, bell crank and roll are moved inward against theactionotthe weight by the pull of the web m1, and theibrake band rial; a stationary trame; means for draw- Y ing a web of material from a stock supply; meansfor automatically maintaining the web under,uniformtensiom comprising a movable Jframe adaptedto beymoved inone direction by the pull ot the material; means on the movable trame for retarding the delivery of said .web `from the said stock supply;

means on the stationary frame for operating Y the retarding means; and means for moving the movable :frame inthe opposite direction to counterbalance the effect of thepiill'on the vmaterial and to cause actuation ot the retarding means on the movable trame, bythe operating .means-on the stationary frame.4

I 2. AIn .a machine for handling web material; a stationary frame; means for drawing ka web otimaterial continuously through the machinero'm v a stock supply; means for automatically maintaining .the web under .operating the -retarding means;

uniform tension, while passing through machine, comprising a movably supporter the to frame ada ted to siinioit said stock su l i i L l D said movable frame being adapted to be moved in one direction bythe pull or the material; means on tli'efmovablefraine for retarding` the delivery ot said web i 1om the said stock supply; means on the. stationary trame Jtor operating the retardingiineans; and means 'for moving the' movable trame in the opposite direction to counterbalance the eli'ectof the pull yon the material and to cause actuation or the retarding means on the Vmovable frame, by the operating means oni'tne stationary frame. Y

3. 1n a machine for handlingwehlmaterial; a stationary frame; means icordrawin'g a web of. material continuously through the machine from a stoclrv supply inthe formel" a roll.;` means for automatically maintaining the web under uniform tension while "passing throughthe zmachine, ,comprising a movably supported frame adapted torevolvably support said roll, said frame and said rollbeingadapted tofmove-in one direction bythe pull of the material; means on Vthe movable frame for retarding .the rotationV of theroll;'means on the stationary frame for and means n 'for moving the movable frame and the roll in the opposite direction to counte'rbalance the effect ofthe pull `on the material rand to cause actuation or" the retarding means on-the movable frame, by the operating means on the stationary Jframe.

4. In aimachine for coating web material, comprising a stationary traine; means for drawing a web vof material continuously through the machine Jfrom a'I stoclr supply `in the form of a roll; means Jfor automatically maintaining the web underv uniform tension, while passing through the machine, comprising a inovably supported framev adapted to revolvably support said roll, said trame and said roll being adapted to move in oneV direction by the pull of the material; means for retarding the rotation of the roll on the movable trame;l means for operating theretarding means on the stationary frame;

*and means for moving the movable frame and the roll in the opposite direction to counteibalanee the effect ofthe pull on the inaterial and tocause actuation or" the retarding means on the movable trame, by the operating means on the stationary frame. A i Y V5.111 a machine for coating web material, comprising a stationary trame; means 'for drawing a web or" material continuously through the machine from took roll; means for automatically maintaining the web under uniform tension, while passing through the vir'iachine', comprising ajmovablv supported frame adapted -to revolvably support said roll, said frame and said rollbeing adapted to move in one direction by the .pull ofthe material; a brake on the movable frame for retarding the rotation ofthe roll; a lever for operating said brake; a projection on the stationary frame adaptedto engage and l operate said lever; and means for moving the movable frame and the roll in the opposite direction to counterbalance the effect of the pull on the material and to cause actuation of the brake operating lever on the movable frame, by the operating projection on the stationary frame.

6. In a machine for coating Web material, comprising a stationary frame; means for drawing a Web of material continuously through the machine from a stock roll; means for automatically maintaining the web yunder uniform tension;wliile passing through the machine, comprising a movably supported frame adapted to revolvably support said roll, said frame and said roll being adapted to move in one direction by the pull of the material; a brake on the movable framey for retarding the rotation of the roll; a lever for operating said brake; a roller on the stationary frame adapted to be engaged by said lever; and means for moving the movable frame and the roll in the opposite direction to counterbalance the effect of the pull on the material and to cause actuation of the brake operating lever on the movable frame, by the operating roller on the stationary frame.

7. In a machine for coating web material provided With a rigid frame; the combination of means for drawing a web of material continuously through the machine from a roll of stock; a supporting shaft for said roll; a brake drum on said shaft; a frame movably supported on said rigid frame; anti-friction bearings between the movable frame and the rigid frame; bearings on said movable frame for said roll shaft; a bell crank pivoted to said movable frame; a brake band engaging said brake drum and having one end secured to said movable frame and the opposite end secured to one arm of said bell crank; an arm on said bell cranlr and having an angulariy disposed side; a roller,

on said rigid frame, adapted to engage the angular side of said arm; and means for moving said movable frame and its associated elements in a counter direction to the direction of travel of the web, as it is drawn from the roll.

8. In a machine for coating Web material provided with a rigid frame, the combination of means for drawing a web of material continuously through the machine from a roll of stock; a supporting shaft for said roll; a brake drum on said shaft; a frame movably supported on said rigid frame; anti-friction bearings between the movable frame and the rigid frame; bearings on said movable frame for said roll shaft; a bell crank pivoted to said movable frame; a brake band engaging saidbrake drum and having one end secured yto said v to one arm of said bell crank; an arm on" said bell crank and having an angularly disposed side; a roller, on said rigid frame, adapted to engage the angular -side of said arm; means for moving said movable frame and its associated'elements ina counter direction to the direction of travel of the Web,y

as it is drawn from the roll; comprising a gear rack on said movable frame; a gearL LYNN B. CASE.

vmovable frame andthe opposite end secured ite