US1125166A - Coating-machine. - Google Patents

Description

c. F. PHASE 1 COATING MACHINE.

APPLICATION TILED JULY 19. 1912.

Patented Jan. 19, 1915.

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COATING MACHINE.

APPLICATION FILED JULY 19. 1912.

1,125,166, I Patented Jan.19,1915.

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COATING MACHINE. APPLICATION FILED JULY 19.1912.-

Patented Jan. 19, 1915.

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C. F. PHASE.

COATING MACHINE.

APPLICATION FILED ULY 19,1912.

Patented Jan.- 19, 1915.

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CFPeczae CHARLES 1'. mass, OF CHICAGO,

1 iii ILLINOIS, ASSIGNOR TO THE C. F. PEASE COMPANY,

OF CHICAGO, ILLINOIS, A conronnri'on' or ILLINOIS.

COATING-MACHINE.

Specification of Letters Patent.

Application filedJuly 19, 1912. Serial NO. 710,472.

To all whom it may concern:

Be it known that I, CHARLES F. Pnasn, a. citizen of the United States, residing at Chicago, in the county of' Cook and State of Illinois, useful Improvements in Coating-Machines. of which the following as a specification.

The present invention relates to a machine to coat paper with a liquid chemical, in the manufacture of photographic paper, such asblue print-or white print paper.

An important object of this invention is to provide a machine of the above mentioned character, which is adapted to coat the paper in a continuous and expeditious manner and subsequently thoroughly dry the same be fore it is wound up into rolls.

A further object of the invention is to provide novel means for preventing the damp coated paper from wrinkling or creasing while being passed through the machine.

A further object of the invention is to improve the construction of such machines in general, whereby they are rendered more simple, compact, durable, and eflicient in fulfilling their function. I A further object of the invention is to provide means for heating the paper upon both sides as it enters the drier-casing.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same, Figure 1 is a side view of the apparatus, Fig. 2 is a central vertical longitudinal sectional view through the same, Fig. 3 is a transverse vertical sectional view taken on line 33 of Fig. 2, Fig. 4 is an enlarged sectional view of the take up or winding means shown in Fig. '2, Fig. 4 is a detail section taken on line l i of Fig. 4, Fig. 5 is a side view of the smoothing bar, and, Fig. 6 is a central vertical sectional view through a slightly different form of the invention.

In thev drawings wherein, for I of illustration, I have shown a preferred embodiment of my invention, the numerals 1 and 2 designate upstanding end frames, carrying vertical posts 3 and 1. These vertical posts support a horizontal drier-casing 5, extending into the same, as shown. The

have invented certain new and.

the purpose which slidably engages a stationary rail or track 13. The lower longitudinal edge of the horizontal movable door 10 operates within a stationary track 1 1, which is S- shaped in cross-section. The track 14 is rigidly mounted upon a frame 15, as shown. The lower horizontally movable door 11 has its upper longitudinal edge operating within the track 14 and its lower longitudinal edge provided with a flange 16, which is U- shaped in cross-section and slidably engages a stationary track or frame 17, as shown. It 1s thus seen that access may be easily had to the interior of the casing 5 from both Patented Jan. 19, 1915.

sides thereof by the proper manipulation of the doors 10 and 11. The upper horizontally movable doors 10 are rovided with openings, which are norma ly. closed by sliding doors 18, operating within tracks 19, which are fixed to the doors 10. The sliding doors 18 carry handles 20, so that said slidingdoors may be easily moved. The doors 10 are also provided with handles 21, as shown. It is thus seen that by the proper manipulation of the sliding doors 18, a certain amount of access may be had to the interior of the casing 5 without moving the entire door or doors 10.

Rigidly mounted upon the outer portion of the end frame 2 and near the lower ends 7 thereof, are stationary supporting brackets 22, having their outer ends forked and provided with bearing wheels 23, as shown, for rotatably supporting'a corev 24, upon which is 'wound a rolltof paper 25, to be coated with a liquidchemical. Suitably mounted between the upstanding frames 2 are horizontal idlerolls 26, 27,28 and a stationary scraper roll 29, as shown. The paper 25 is passed above the endroll 26 and the stationary scraper roll 29 and below the inner rolls 27 and 28. Disposed bet een the inner idle rolls 2? and 28 is a coating roll 30, which engages the lower surface of the paper 25 and is rotated in a reverse direction to the travel of. the paper, as indi cated by the arrows. The coating roll 30 also operates within a receptacle 31, contain ing the liquid chemical to be applied to the lower surface of the paper 25. Suitably mounted between the frames 1 are idle rolls 32 and 33, between which is disposed a second coating roll 3%, which is driven'in a reverse direction to the travel of the paper as indicated by the arrows. The paper 25 is passed below the idle rolls 32 and 33 and above the coating roll 34. The coating roll 34: operates within a receptacle 35, containing the liquid chemical to be applied to the lower surface of-the paper 25. Rigidly mounted upon the upper portions of the frames 1 are outwardly extending stationary brackets 36 and 37, carrying idle rolls 38 and 39, respectively, as shown. The brackets 36 also serve to support the gas burners 9, which are disposed near and upon opposite sides of the paper 25, to supply the maximum heat to said paper as it first enters theheating-chamber. Pivotally connected with the brackets 36 in any suitable manner, are depending arms 39, to the lower ends of which is rigidly connected a stationary scraper roll- 4:0,which engages the outer or coated surface of the paper 25, to scrape off any excess of the liquid chemical. Retractile coil springs 41 serve to swing the stationary roll 40 into engagement with the paper, which engages the outer portions ofthe idle rolls 38 and 39.

Suitably mounted upon the vertical posts 3 is a vertical set of idle rolls 42, disposed within the drier-casing 5 and near one end thereof, as shown. Suitably mounted upon the posts 4 are vertical sets of. positively driven rolls 43 disposed near the opposite end of the drier-casing and rotated by sprocket wheels-i4. These sprocket wheels are all engaged by a sprocket chain 45,

which also engages sprocket wheels 46, supported by the posts 4 and arranged belowthe rolls 43. The paper 25 extends upwardly into the drier-casing 5 through an opening =6; and is passed about the idle rolls 42 and the positively driven roll 43,- as shown. By the arrangement of the'sets of rolls near the ends of the drier-casing, Tam able to construct said drier-casing comparatively short and pass a section of the paper through the same, which is several times larger than the drier-casing. lit, is obvious that the length of the paper thus passin through the drier-casing may be increase by increasing the number of rolls in the vertical sets of the same. It is thus seen that I after the paper 25 has been coated with the liquid chemical, it is passed through'the drier-casing .5, wherein it is'dried; subse-.-

at their ends with adjustable cranks 49,

which are pivotally connected with brackets 50, as shown at 51. Clamping bolts 52 are provided, which operate within curved slots 53 formed through the cranks 49 and serve to rigidly lock these cranks in adjustment at diiferent positions. These curved smoothing bars are arranged in the upper portion of the drier-casing 5 and engage only the uncoated surface of the damp paper. The paper by traveling over these curved smoothing bars is stretched transversely, that is, there is a tendency to pull the longitudinal edges of the paper away from each other, whereby the paper is held tight and kept smooth or prevented from being creased or wrinkled. After the paper has traveled for a certain distance .withinthe drier-casing 5 and has become more or less dry, this tendency to crease or wrinkle is done away with and l have found by practice, that it is unnecessary to provide these smoothing bars in the lower portion of the drier-casing.

I Rigidly mounted upon the upper portions of the end frames 2 are outwardly extending brackets 54, comprising upper horizontal and depending substantially vertical arms 55 and 56. Suitably mounted between the free ends of the horizontal arms55 is an idle roll 57. Suitably mounted between the arms 55 near the inner ends thereof. is adriven roll 58, engaged by a suitable nunr ber of belts 59, extending downwardly to engage a positively driven roll 60, which is mounted between the lower ends of the vertical arms 56, as shown.

I provide a novel form of winding means, comprising a vertically swinging. structure including depending arms 61, which are pivotally'connected with the brackets 54 at their upper ends so that the lower ends of said arms are free to swing toward and away from.the positively driven roll 60. The lower ends of the vertically swinging arms 61 are provided ,withenlarged heads 62, adapted to operate outwardly of the ends of the roll 60. These enlarged heads drical clamp 64, which is removable upon the winding tube 64 and serves to attach the free end of the paper to said tube This clamp is shorter than the winding tube.

The heads 62 carry bearing-rollers 65, which engage the winding tube 64. The outer side of the pockets 63 are entirely open, as shown, whereby the Winding tube 64 may be readily removed by an outward or upward movement. The winding tube 64 is driven by belts 66, which engage the end portions thereof outwardly of the clamps- 64* and the ends of a larger roll 67, which has engagement with the belts 59. It is seen that the winding tube 64 is rotated at a higher rate of speed than the larger roll 67. The paper 25 is passed outwardly about the roll 57, between the belts 59 and the roll 67 and then attached to the wind ing tube 64 by means of clamps 64 The feeding movement or advancement ofthe paper is effected by the positively drlven rolls 44, rolls. 60 and 67, and belts 59. The

winding tube 64 is capable of being driven at a higher rate of speed than the roll 67, as above stated, whereby it has. a tendency to wind up paper faster than it is advanced or fed. During the ordinary operation of the machine, the speed of rotation of the winding tube 64 is automatically reduced to correspond to that of the paper feeding means, by virtue of the fact that the belts 66 are adapted to slip ,upon the tube 64 when sufiicient pull is exerted upon the paper, which might tend to tear it. Stops or the like (not shown) are preferably provided to limit the downward movement of the swinging arms 61, whereby the winding tube is retained spaced from the roll 60 and the roll of paper when first wound upon the winding tube is also held spaced from the roll 60. paper increases sufficiently in size, it'engages the roll 60 and its belts 59, which aid in the rotation of the roll of paper. When the roll of paper which is being wound, is removed, the machine continues its operation, the paper is cut and the tube 64 removed. This tube is now removed from the roll of paper and returned to its normal position in the Winding means and the free end of the paper is attached thereto. During the removal of the first roll of paper, the discharge of the paper continuing, there will be quite a lot of slack in the paper, which will be taken up during the continuous discharge of said paper, bv virtue of the fact that the winding tube 64-is driven faster than the roll 67. It is obvious that at first this mechanical advantage is very slight, but as the size of the roll of paper being wound increases, said mechanical ad- When. however, this roll of upper portion ofthe end frame 2, This rheostat may be of any well known or preferred type. The motor 69 is employed to drive the dififerent parts of the machine.

This motor drives a belt 71, extending uprigidly connected with the rolls 58 and 67.

respectively, to positivelv drive the same.

Rigidly connected with the opposite end of the roll 60 is a sprocket-wheel 79, engaged by a sprocket-chain 80, which extends downwardly for engagement with a sprocket-wheel 81, which is rigidly connected with one end of the coating roll 30. Rigidly connected with the opposite end of this coating roll-is a sprocket-wheel 8'2, engaged by a horizontal sprocket-chain 83, extending to the left to engage a sprocketwheel 84, which is rigidly connected with the coating roll 34. It is thus seen that the coating rolls are driven together in the same direction, which is opposite to the direction of travel of the paper 25 In Fig. 6.1 have shown a slightly modified form of 'my invention, which is the single type machine as it only applies a single coating'of the liquid chemical to the paper. This machine is just like thefirst form of the invention, except that the end frames 1 and elements carried thereby are dispensed with. The posts 4 support a drier-casing 85, similar to the drier-casing 5, except that it is made much shorter. The positively driven rolls 44 and associated elements employed in connection with the first form of the invention-are dispensedwith,

and the paper 25 passes abouta single roll 86', suitably mounted between the posts 4 within the drier-casing 85.' The numeral 87 coat the paper with the liquid chemical and such paper engages a stationary roll 88 carried by swinging arms 89, swung inwardly by retractile coil springs 90. The motor 69 is suitably geared with the roll 60, in the same manner as shown and described. in connection with the first form of my invention. It is believed that no further description of this second form of the invention is necessary.

In the operation of the machine the paper is made to travel in the direction of the arrow, and the coating rolls 30 and 34 are driven in a reverse direction to the travel of the paper. These coating rolls are preferably formedwof metal with their surfaces covered with rubber. The coating rolls operate within the receptacles 31 and 35 and supply the proper amount of the liquid chemical to one side only of the paper. The paper continues in its travel and passes into the upper end of the drier-casing 5. VVithin this casing the damp paper passes about the smoothing bars 48 and is held stretched transversely so that it cannot crease or wrinkle. After the paper has traveled into the lower portion of the drier-casing, it is comparatively dry and willnot thereafter crease or wrinkle. The paper continues its travel and is properly wound upon the tube 64}. The winding means operates particularly advan- F tageously as it keeps the paper properly stretched while it is being wound. 1 hen the roll of paper isremoved the machine continues in operation. The tube 64 is removed from the roll of paperand returned to its normal position in the winding means and connected with the free end of the discharging paper. The tube 64, by rotating to windup the paper faster than it is being discharged or fed from the machine, soon takes up all the slack that occurred duringthe removal of the first roll of paper. When the roll of paper'on the shaft 64 gets suificiently large, it engages the roll 60 and its belt 59, which aid in rotating the same. v

The operation of the form of the invention shown in Fig. 6 is so similar to that hereinabove stated in connection with the first form of the invention, that it is thought unnecessary to state such operation.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same, and that certain changes in the shape, size, and arrangement of parts may be 'resorted to without departing from the spirit of the invention or the scope ofthe subjoined claims.

Having thus claim 1. In apparatus scribed, the combination with a substantially closed heating shell provided near one end with a paper inlet opening, of positively driven means disposed within the substantially closed heating shell to effect the lon-, gitudina'l travel of the paper withim and through the heating shell, a heater extending into the heating shell in proximity to described my invention, ll

' the paper inlet opening to supply the-maximum amount of heat to the paper as the if ofthe character de-' paper inlet and outlet openings, of posi-' tively driven means disposed within the substantially closed heating shell to effect the longitudinal travel of the paper within and through the heating shell, a heater extending into the heating shell in proximity to the paper inlet opening, a relatively stationarylongitudinally curved smoothing element arranged within the heating shell and extending transversely of the paper with its convex surface adapted to slidably engage with the paper, and means arranged exteriorly of the heating shell to apply a liquid chemical to the paper.

3. In apparatus of the character described, the combination with a substantially closed heating shell, of means to heat -the same, means toefiect the longitudinal travel of paper within and through the heating shell, means to apply a "chemical \solution to the paper before entering the shell, a longitudinally curved rod extending transversely of the paper and having its convex surface slidably engaging the same, means to pivotally support the longitudinally curved rod whereby the same may be angularly adjusted so that its convex surface will laterally stretch the paper with difi'erent degrees of strength, and means to lock the lon itudinally curved rod in adjustment at diderent angular positions.

4. In apparatus of the character described, the combination with a support, means mounted thereon to support longitudinally traveling paper, means to heat the paper while the same is traveling longitudinally, means to supply a chemical solution to the paper, and an angularly adjustable smoothing rod connected with the support and longitudinally curared with its convex surface adapted to engage with the paper to exert difi'erent degrees of lateral pull upon the paper-depending upon the angular adjustment of the smoothing rod.

5. In apparatus of the character described, a substantially horizontal heating inlet opening, means disposed within the heating shell to cause the paper to travel longitudinally back and forth within the same, means for. applying a. chemical solution to the pap'erbeforethe same passes into the shell, a heater extending into the heating shell and disposed in proximity to the 120 A shell provided near one end with a paper I smoothing elements arranged within the heating shell and adapted to have their convex surfaces slidably engage portions of the paper at points spaced a substantial distance in advance of each other for subjecting the portions of the paper of different degrees of dryness to the lateral pulling action of the same.

6. In apparatus of the character described, the combination With an upstanding frame, of a heating shell mounted upon the upper portion thereof, a heater extending into the shell, a liquid holding re ceptacle mounted within the lower portion of the frame, a liquid applying roll operating within the liquid holding receptacle and engaging the paper traveling in one direction, paper guide rolls mounted Within the lower portion of the frame near and upon opposite sides of the liquid applying roll, paper guide means mounted upon the side of the upstanding frame toward which the paper travels and near the upper end thereof for properly conducting the paper into the shell, a roll arranged within the upper portion of the shell to engage with the paper which passes thereover and extends downwardly through and beyond the shell to be arranged upon the opposite side of the upstanding frame with respect to the paper guide means, and winding means connected with such opposite side of the upstanding frame to engage with the discharging end of the paper. I

7. In apparatus of the character described, the combination with a substantially horizontal closed heating shell" provided near its opposite ends with paper inlet and outlet openings, a plurality of sub-- curved smoothing rods arranged within the heating shell and having their convex surfaces engaging the paper at points spaced a substantial distance in advance of each other to slidably engage portions of the paper having different degrees of dryness, means to supply a chemical solution tothe paper, and separate means to angularly adjust each smoothing rod.

In testimony whereof I aflix my signature in presence of two witnesses.

CHARLES F. PEASE. Witnesses:

ELsIE B. MILLS, THOMAS LORD.

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