US1565435A - Coating machine - Google Patents

Description

COATING MACHINE Filed March 21. 1924 5 Sheets-Sheet l (NVENTOR 4% Jim WITNESSEJ ATTORNEY Dec. 15, 1925- T. J. GALBRAITH COATING MACHI NE Filed Marbh 21. 1924 5 Sheets-Sheet 2 lwllllrlll TTORNEY WITNESSES Deco I T. J. GALBRAITH COATING MACHINE Filed March 21. 1924 5 Sheets-Sheet 3 K M MUH MWWWHWW N INVENTOR ATTDRN EY WITNESSFJ Dec. 15, 1925- T. J. GALBRAITH COATING MACHINE 5 Sheets-Sheet 4 Filed Marci 21 1924 INVENTOR ATTORNEY WITNES'SAFJ 5 sh eets -sheet 5 T. J. GALBRAITH comma momma Fil ed March 21. 1924 INVENTQR ATTORNEY WITNESSES Patented Dec. 15, 1925.

THOMAS J. GALBRAI'IH, OF RICHMOND, VIRGINIA.

COATING MACHINE.

Application filed March 21, 1924.. .Serlal No. 700,871.

To all whom it may concern:

Be it known that .I, THOMAS J. GAL- BRAITII, a citizen of the United States, residing at Richmond, in the county of Henrico and State of Virginia, have invented new and useful Improvements in Coating Machines, of which the following is a specification.

This invention relates to a coating apparatus, the general object of the invention being to provide a device for applyingsizing, paint and the like to a fabric or the like, the invention being mainly designed for use in treating cloth to produce shades and curtaius.

Another object of the invention is to provide means for spraying the material upon the fabric, then brushing it in by rotary brushes and then smoothing it by flat stationary brushes.

A further object of the invention is to place the cntire device upon a truck or carriage so that the spraying device and brushes can be drawn along the surface of the fabric while the same is held in suspended position and also to provide means for holding the fabric at a uniform distance from the truck or carriage while the same is moving along.

Another object of the invention is to provide n'ieans on the carriage or truck for-cutting the fabric from the holding means and winding it upon a spool upon the carriage. This invention. also consists in certain other features of construction and in the con'ibination and arrangement of the. several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims. I

In describing my invention in detail, ref-' erence will be had to the accompanying drawings wherein like characters denote like Figure 6 is a sectional view showing the means for drivingthe spool shaft from the counter shaft.

Figure 7 is a section on'line 7-7 of Figure 8.

'Figure 8 is a sectional view through one of the rotary brushes and its supporting and driving means. a

Figure 9 is a view of one of the cloth holding members showing the same in closed position.

Figure 10 is a similar viewshowing the same in open position.

Figure 11 is a detail view of the steering means.

Figures 12 and 13 are views of one of the spray guns.

Figure 14 is a sectional view through one of the smoothing brushes. v

V Figure 15 is a view showing the shifting mechanism for the brushes.

As is well understood the sheet of fabric or cloth A for forming a curtain or shade material is suspended from tracks while the sizing and "palm is being applied thereto by spray brushes, the sheet bein attached to a member 1 which is suspende from the carriages on the supporting track by the cables 2 and the lower edge of the sheet being attached to" a member 3 which acts as a weight for holding the sheet in stretched condition-while it is receiving the coating material. In carrying out .my invention I make the inner edges of the members 1 and 3 of ridge-shape and place plates 4 of metal on the bevel faces. The inner plate ofmetal 4' .acts as a hinge for a removal piece 5 of each of the members Land 3 so that the.

edges of the sheet can be clamped in the members 1 and 3 inv a. position where it passes from each member at the point thereof so that the coating material can be applied to all of the exposed part of the sheet and is prevented ,from accumulating at the junction of the sheet with the member due to the absence of shoulders at these points. Any accumulation of. material can be easily removed from the plate by a knife, blowtorch or other means. The edges of; the

sheet are pasted to the members 1 and '3 after the members 5 have been swung out wardly' and then these members are swung to closed position to clamp' the sheet to the member so that the sheet is held to the members by the clamping action and by the adhesive material. Each member 5 is held in closed position by means of the inclined end of the head 6 engaging the plate 4 when the cam 7 on the stem 8 of the head is in engagement with the perforated ear 9 carried by each member, the stem passing through the perforation. When the clamp is to be opened the cam is loosened by its handle and the stem and head given. a quarter turn and lowered intothe position shown in Figure 10. Each member 1 and 3 carries a guideway 10 for a purpose to be hereinafter described.

The coat applying means are located on a truck 11 which is supported by the rear axle 12 which carries the wheels 13 and the truck 14 which is connected with the front end of the truck by the swivel connection 15 and to which the steering post 16 is connected. The post is provided with a pivoted handle 17 which may be placed in a notch 18 formed in the steering post column 19, when the truck is to travel in a straight line. The truck may be provided with a tongue receiving part 20 so that a tongue may be attached. A motor 21 is carried by the truck and its shaft carries a pulley 22 and a bevel gear 23. A counter shaft 24 has a bevel gear 25 therein which meshes with the gear 23 and said counter shaft has attached thereto a worm 26'. and a friction member 27 is slidably mounted on the counter shaft by means of a key thereon sliding in a keyway 28 in'the shaft. This friction member 27 engages an idler friction disc 29 and a friction disc 30 which is fastened to a shaft 31 and this shaft 31 is fastened to a stub shaft 32 by the chain and sprocket means 33. Each of these shafts 31 and 32 are connected by the bevel gears 34 with the brush operating shaft 35. Thus by shifting the member 27 on the counter shaft the brush shafts can be driven at different speeds or they can be reversed by passing the member 29 beyond the center of the friction disc. The shifting means consists of a pivoted lever 36 which has its forked end engaging project-ions on a block 37 which is slidable on a supporting rod 38 and which has a forked depending part 39 which engages a groove in the mem ber 27 so that by rocking the lever 36 the block is moved so as to cause its depending part 39 to slide the member 27 upon the counter shaft.

I The gear 26 meshes with a gear 40 on a shaft 41 which is connected by the chain and sprocket means 42 with the rear axle 12 so t at the truck can be driven from the motor. An air compressor 43 is arranged on the truck and its wheel 44 is engaged by a belt 45 which also engages the belt pulley 22 on the motor shaft so that the air compressor is actuated from the motor. The compressed air is delivered by means of the pipes 46 to a tank 47 suspended from the bottom of the motor and this tank is connected by the pipes 48 with the upper end of a paint receptacle 49 which contains the material to stand pipes 51 and 53 carry hose connections 54 which when not in use can be closed by plugs 55. Hose 56 are adapted to be fastened to the desired connections 54 and thesehose are connected with the air and paint inlets 57 of the spray guns 58. These guns are of the type now on the market and are so constructed that the paint material forced from the paint receptacle by means of the air pressure therein will enter the gun through the inlet 57 and will be ejected through the nozzle 59. The compressed air from the stand pipe 51 will 'escape from the gun through an opening in the head thereof which surrounds the nozzle 59 and some of' this air will escape through the curved pipes 60 and these different streams of air will cause the coating material to pass. from the nozzle in a fan-like spray. These nozzles are connected with one of the uprights of a frame 61 by means of a ring 62 on each nozzle and a set screw 63 on eacli ring. The frame acts as a support for the various pipes and shafts and its lower end is supported by the depending frame 64 which is connected with one of the sides of the truck. Eye pieces 65 are carried by the frames 61 and 64 and the outer ends of these pieces engage the guideways 10 on the members 1 and 3 and act to hold that part of the sheet being operated upon a certain distance from the truck so that the sheet will be uniformly treated by the apparatus.

After the material is sprayed upon the sheet it is subjected to the action of the rotary brushes 66 which are driven from the shafts 35. Each brush has its stem 67 slidably mounted in a hollow shaft 68 mounted to rotate in a bearing 69 which is slidaby mounted on a shaft 70 and held in adjusted position on said shaft by the set screw 71. The' stem 67 is limited in its movement by means of a stop 72 thereon engaging a slot 73 in the hollow shaft. A spring 74 placed between the brush and the outer end of the bearing tends to hold the brush yieldingly against the sheet. The hollow shaft 68 carries a bevel gear 75 which meshes with a gear 76 slidably mounted on the shaft 35, which is of square shape in cross section and said and the supporting shafts 70 for the rotary brushes, said brushes can be arranged in staggered relation so that all parts of the" sheet can be operated upon by the brushes. It will be seen that as many of these brushes can be used as desired or necessary to act upon the full width of the sheet.

In rear of the rotary brushes are arranged two sets of flat brushes 79 which are adjustably supported on the uprights 80 by means of the tubular parts 81 encircling the uprights and being held in adjusted position thereon by'the set screws 82. These parts 81 are provided with sockets 83 for receiving; the stems 84 of the brushes and springs 85 tend to hold the brushes in their outer po. sitions, movement of the stems in the sockets being limited by the hinge 86 engaging the slots 87 in the walls of the sockets.

The frame 61 is provided with the braces 88 and the flow of the air and liquid can'be controlled by means of the various valves 89 and the pressure can be ascertained by the gauges 90.

The apparatus is adapted to travel. along the length of the sheet to be treated, as shown iii the drawings and the sheet is, held in a certain position relative to the apparatus by means of the eye piece engaging the guideways 10 on the supporting members of the sheet. The coating material is first sprayed upon the sheet by the guns which deliver it in a fan-shaped spray and then the material is subjected to the action of the rotary brushes and then the material is smoothed upon the sheet by the. flat brushes 79 which follow the,rotary brush. As will be seen both the rotary brushes and flat brushes are arranged in staggered relation so as to thoroughly brush the material upon the sheet and thus thoroughly coat the sheet with the material. The springs act to hold the brushes yieldingly against the sheet and the speed of the rotary brushes can be adjusted to suit conditions. The sheet can be easily and quickly attached to the holding members and by making the holding members of ridge shape there are no shoulders to collect the coating material and all exposed parts of the sheet can be acted on by the coating apparatus.

I also provide means for removing the sheet from the supporting members and winding it upon a shaft when the sheet is dry. Such means consists of the stub shaft 91 which is connected by the friction gears 92 to the counter shaft 24 and which. is

' adapted to receive the lower end of a tubular so that said-member can be adjusted in any desired position on the shaft 93. Thus when the end of the sheet has been wrapped around the shaft 93 the rotary move i'ieiit of the shaft imparted to it from the cam shaft 24 will act to wrap the sheet around i said shaft 93. The lower edge of the sheet ting discs 100 are arranged upon a shaft 101 for containing the coatin for connecting the receptaele with the spray and springs 102 act to yieldingly support the arms upon the shaft. The arms are held against rotary movement on the shaft by the set screws 103 engaging a slot in the shaft. These arms are so arranged for the cutting action that the disc will be. pressed upon the pointed edge of the members 1 and 3 so that as the apparatus is being driven along the friction will cause the disc to rotate and thus cut the cloth from the holding member. At the same time the cloth is being wound upon the hollmv shaft. 93.

Thus I have provided simple means for removing the cloth from the holding means after ithas been treated bythe apparatus. A It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

What I claim is:-

1. An apparatus for applying a coating to a sheet comprising. a carriage, spray means thereon for spraying the coating material u on the sheet, an air compressor for furnishing air to the spray means, rotary brushes on the carriage for operating upon material sprayed on the sheet, smoothing brushes on the cari'iageand means on the carriage for actuating the compressor and the rotary brushes. i

2. An apparatus for spraying coating material upon a sheet comprising a carriage, spray means thereon for spraying the coating' material upon the sheet, 'an air compressor for supplying air to the snravmeans,

a plurality of rotary brushes for working upon the material sprayed on the sheet, a plurality of stationary brushes on the apparatus for smoothing the material sprayed on the sheet and power driven means on the carriage for actuating the compressor and the rotary brushes.

3. An vapparatus of the class described comprising a carriage, spraying means thereon, a plurality of rotary brushes carried by the carriage, a plurality of smoothing brushes carried by the carriage, a receptacle material, pipes means, a compressor, a tank for receiving the thereby, a compressed air tank connected.

with the spray nozzles,a receptacle connected with the spray nozzles and with the tank, a compressor connected with the tank, a motor on the carriage connected with the compressor," means for driving the carriage from the motor, a plurality of rotary brushes carried by the apparatus, means for rotating the same from the motor, means for regulating the speed of the brushes and smoothing brushes adjustably carried by the carriage. I I

5. An apparatus of the class described comprising a carriage, a motor for driving the same, spray means carried by the carriage, brush means carried by the carriage,

a receptacle on the carriage connected with the spray means, a compress d air tank on the carriage connected with the receptacle and with the spray means, a compressor for supplying compressed air to the tank, means for driving the same from the motor, rotary brushes carried by the carriage, means for actuating the same from the mo tor and smoothing brushes carried by the carriage.

6. An apparatus for coating fabric comprising yieldable supporting means for holding a sheet of fabric in vertical position, a carriage, means on the carriage for slidingly engaging portions of the supporting means to adjust the sheet to a certain distance from the carriage and means on the carriage for applying coating material to the sheet.

- 7. An apparatus of the class described comprising a carriage, a motor for driving the same, an upright frame located at one side of the carriage, spray nozzles adjustably connected with a part of the upright frame, stand pipes supported by the upright frame, hose for connecting the stand-pipes with the spray nozzles, a receptacle, pipes connecting the same with one of the stand pipes, a compressed air tank, pipes connecting the same with'the other stand pipe, a compressor connected with the tank, means for operating the same from the motor, a number of rotary brushes, means for adjustably supporting the same on the upright frame, means for rotating the brushes from the motor, such means including mechanism 'ing brushes for controlling the speed of the brushes and for reversing their movement, and smoothadjustably carried by the upright frames.

8. An apparatus of the class described comprising a carriage, a motor for driving the same, an upright frame located at one side of the carriage, spray nozzles adj ustably connected with a part of the upright frame, stand pipes supported by the upright frame, hose for connected the stand pipes with the spray nozzles, a receptacle, pipes connecting the same with one of the stand pipes, a compressed air tank, pipes connecting the same with the other stand pipe, a compressor connected with the tank, means for opcrating the same from the motor, a number of rotary brushes,- means for adjustably supporting the same on the upright frame,

means for rotating the brushes from the motor, such means including mechanism for controlling'the speed of the brushes and for reversing their movement, smoothing brushes adjustably carried by the upright frames and means for yieldingly supporting the brushes.

9. An apparatus of the class described comprising sheet supporting means comprising upper and lower members having their inner edges of wedge-shape, one-half of the wedge part of each member being hingedly connected with the body of the member so that the sheet can be clamped between the movable part and the stationary part, a guideway on each member, a carriage, an upright frame. at one side thereof, projecting members on said frame, engaging the guideways, cables for supporting the upper member and means -upon' the carriage for applying a coating to the sheet held by the members.

10. An apparatus of the class described comprising sheet supporting means comprising upper and lower members having their inner edges of wedge shape, one-half o the wedge part of each member being hingedly connected with the body of the member, so that the sheet can be clamped between the movable part and the stationary part, a guideway on each member, a carriage, an up right frame at one side thereof, projecting members on said frame engaging the guideways, cables for supporting the upper member, means upon the carriage for applying a coating to the sheet held by the members and brushes on the carriage for smoothing the coating material on the sheet.

In testimony whereof I aflix' my signature.

THOMAS J. FrALBRAITH.

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