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Get.’ 8, 15946. H. H. BELCHER 2,49,91 1 FULLING MILL FiledOct. 14, 1945* 2 Sheets-She'e't 1 _ Oct: 3, 1946. H. BELCHER ' FULLING MILL _ 2,409,011 -, 2,409,011 Patented Oct. 8, 1946 UNITED STATES PATENT OFFICE 2,409,011 FULLING MILL Harold H. Belcher, Orange, Mass, assignor to Rodney‘ Hunt Machine Company, Orange, Mass, a corporation of Massachusetts Application October 14, 1943, Serial No. 506,280 15 Claims. (Cl. 26-49) 1 This invention relates to a new and improved fulling mill embodying novel features. Objects of the invention include the provision 2 mounted on vertical axes on the box and pro vided with swivel nuts in engagement with a right and left-hand screw-threaded rod for pivoting the throat plate guides to and from pressure loaded clapper for the packing boxes c1 each other to adjust the sides of the front open ing, thereby providing without expensive con whereby any desired degree of pressure may be struction a tapering inlet to guide the cloth to conveniently and easily applied for the fulling the fulling rolls with minimum tension thereby operation; the provision of a pneumatically op contributing to faster lengthwise fulling. erated clutch for the main drive of the fulling Other objects and advantages of the invention rolls; and the provision of a pair of fulling rolls. 10 will appear hereinafter, reference being had to the top roll being pneumatically pressure loaded the accompanying drawings, in which for adjustment of pressure between the rolls and of a novel fulling mill including a pneumatically in which the top roll is mounted on a lever pivoted to the vertical arm of an L-shaped frame, the latter being mounted on a pedestal supported on the floor so that the Weight of the fulling mecha nism is not carried on the frame of the machine, and wherein the vertical arm of the L-frame is provided with a stop which may be used to sup port the pivoted lever for the top roll in out-of the-way inoperative position uncovering the bottom roll and leaving the latter open for re pairs. Further objects of the invention include the provision of a fulling mill having a pneumatically operated main clutch, a separate pneumatically pressure loaded top roll. and a separate pneumatically pressure loaded clapper for the packing box, this construction embodying three Fig. 1 is a side view in elevation of a fulling mill according to my invention with parts broken away and omitted for clarity of illustration; Fig. 2 is a front elevational view of one side of the fulling mill with parts removed; Fig. 3 is an enlarged top plan view of the front end of a packing box showing the throat guide; and Fig. 4 is a side view of Fig. 3. Referring to Fig. 1 the reference character [0 indicates the floor line. A pit is provided for the reception of the bottom part of a channel iron framework, indicated generally at l2. This framework comprises vertical end members and horizontal front-to-rear members l4 which sup port the tub, not shown, but which members conform in general to those disclosed in the co separate air cylinders, all of which are, however, 30 pending application Serial No. 453,364 ?led‘ controlled by a single valve located adjacent to the cylinder controlling the drive clutch so that when the mill is started up the drive clutch will engage just prior to the actuation of the top roll and packing box clapper cylinders so that the fulling rolls will start without undue pressure, and the stopping of the mill is virtually simul taneous as to the three cylinders. Further objects of the invention include the August 3, 1942, the general purpose of this con struction being to support the tub either from the framework or to have the tub rest on its own support in the pit, thus avoiding strain on the tub and allowing for lighter materials therein. I provide a pedestal it which rests on the floor and on which the entire operating mecha nism of the fulling mill is mounted separately from the tub and framework I2. For this pur provision of a top fulling roll mounted on a lever 40 pose- I provide an L-shaped bracket having its horizontal arm [8 disposed on the pedestal and which may be swung to an inoperative position its vertical arm 20 rising therefrom. There are uncovering the bottom roll and a packing box a plurality of pedestals and L-shaped brackets, which extends to the front of the rolls and which but only one of each is shown as the others are is pivotally mounted so that it may be swung to an inoperative position completely uncovering 45 of like construction. At the top of the vertical‘ arm 20 I provide a pivot pin 22 for swingingly the bottom roll for removal thereof; the pro mounting a lever 24. Lever 24 rotatably sup vision of a novel chain drive for the fulling roll ports the top roll 26 as by a bearing indicated in which the driving run of the chain for the at 28. At the free end of the horizontal arm top roll, if extended, will pass directly through the pivot of the top roll lever so that there will 50 Hi there is an air cylinder 30 pivotally mounted as at 32 and having a pivot connection with be no tendency of the chain to exert pressure by the free end of lever 24 as at 34-. It will be seen pulling on the top roll toward the bottom roll. that by this construction I have provided a top A still further object of the invention resides in the provision of a pair of throat plate guides roll and support therefor which is adjustable by ' for each packing box, said guides being pivotally 55 air pressure to and from the bottom roll 36, the 2,409,011 3 4 latter being journalled in any desired way on the horizontal arm [8 of the bracket, as for in stance, by a block 38. At the top of the vertical arm 20 I provide a stop 40 which may be used to support the top roll 26 when the pivot pin 34 each guide having a swivel nut 96 mounted thereon in any convenient manner. A right and left-hand threaded rod 98 engages the nut and by means of a hand wheel or other device, not shown, the rod 98 may be rotated to thereby is disconnected and the lever 24 swung around so that it may rest on the stop 40. This will swing the throat guides to and from each other to vary the size of the front opening. clearly uncover the bottom roll 36 for inspection The air pressure supply for the roll pressure and repair. and packing box system is preferably taken from A motor 42 drives a pulley 44, said pulley being 10 the line supplying the clutch operating cylinder journallecl in any suitable manner and driving with a valve positioned to control all three cylin a sprocket wheel 46 which in turn drives a chain ders at once. Hence when the clutch is released 48 in the direction of the arrow shown with re the pressure on the rolls and packing box would lation to the chain. A take-up idler 50‘ may be. be simultaneously released. However, when the used, but in any case, it will be noted that chain valve is closed, the clutch would engage just 48 passes upwardly over a sprocket wheel 52 ?xed prior to loading of the rolls and packing box and to the top roll shaft, and then downwardly on an the drive starts up with no pressure on rolls and incline to drive a similar gear 54 secured to the packing box. These pressures would come up bottom roll shaft. The operation of the parts is very quickly thereafter however, so that the mill shown arranged so that the center line of the 20 will reach operation very quickly. This system chain between the two rolls indicated at 56 passes will ease the starting load but will not impair the directly through the center of the pivot 22, and ei?ciency of the machine. therefore, the force of the chain will be in a di The piping and valves for the cylinders is not rection through pivot 22 and cannot exert down illustrated as this merely involves a valve, a. line ward pressure on the upper roll, the nip pressure to the clutch cylinder, and a branched line to being dependent only on the air cylinder and top the other two cylinders, although each of the roll weight. Also by this construction I am en packing box and top roll cylinders will have a abled to use but a single drive, and therefore, I separate valve to control its individual pressure. do away with the double drive of the conven The present construction allows separate man tional fulling mill, which results in unequal full ufacture of the top cover, the tub, and. the me ing in the different packing boxes in cases of dif chanical parts, and facilitates assembly by avoid ferent loads and in unwanted stress where one ing the old method of building the mechanical side drives at times to the exclusion of the other parts, disassembling, and rebuilding on the tub. side and vice versa. Having thus described my invention and the As will be seen in Fig. 2, I provide an air cyl advantages thereof, I do not wish to be limited inder 58 which is operatively secured to a lever to the details herein disclosed, otherwise than 60 mounted in a bracket 62 on the floor. Lever as set forth in the claims, but what I claim is: 50 is provided with a yoke 64 secured in a rotat able manner to a clutch part 68 keyed to the 1.. A fulling mill comprising a frame, a roll operatively ?xed in the frame, a second roll mov The pulley 44 embodies 40 ably mounted on the frame, a pneumatic device main driving shaft 69. the cooperating clutch part 10, the pulley 44‘ being loose on shaft 68. Air cylinder 58 is operable to engage clutch parts 65 and 19 so as to start ro tation of the fulling roll by means of the chain drive above described. I provide a packing box comprising an iron frame 12 having secured thereto wooden sides 14. Between the wooden sides I mount a clapper 16 which is pivoted at 18 to the iron frame. Clapper 18 is in the form of a bell-crank, and an air cyl inder an is pivoted on the packing box frame and has its piston operatively secured to the bell crank shown in the position of the clapper. By this means pressure on the clapper may be easily varied according to the judgement of the operator 5 of the machine. The packing box is supported on a pivot 82 and swings on the frame of the machine from an operative position shown in Fig. l to a posi tion wherein a stop 84 ?xed with relation to the (10 packing box abuts the rear end of the horizontal arm l8 of the L-shaped bracket as at 86.. The front end of the packing box extends forwardly of the roll and is supported on a cross frame member 88 secured to the upright 20. At this point the packing box may be secured as by a bolt 90. In order to remove the bottom roll it is merely necessary to remove the pin 34 and ‘bolt 90, swing lever 24 around to rest on stop 40, and then swing up the packing box about its pivot 82, whereupon the bottom roll is completely clear and can be removed for repairs. At the front end of the packing box I provide vertical rods 92 (see Figs. 3 and 4)., On these for moving the second roll selectively to or from ' the ?rst named roll, a packing box, a clapper therefor, a pneumatic device for adjusting the clapper, a drive for the rolls, a clutch for said drive, pneumatic means for operating the clutch, and a valve for said pneumatic means and de~ vices‘ effective to actuate the clutch operating device just prior to the other pneumatic devices whereby the rolls will start to rotate with little or no pressure on packing box or rolls when the mill is started. 2'. A fulling mill comprising a frame, rolls mounted on. the frame for rotation thereon, one roll being operatively ?xed and the other roll being movable to and from said ?xed roll, a pneumatic. device for moving said movable roll, a drive for the rolls, a clutch for the drive, pneu matic means for actuating the clutch, and a valve for controlling said pneumatic device and means, said valve. being effective to actuate the clutch actuating means just. prior to operation of the roll moving means whereby the rolls will start to rotate with little or no roll pressure when the. mill is started. 3. A fulling mill comprising a frame, a roll mounted in operatively ?xed position in the frame, a second roll, a movable support for the second roll mounted on the frame ata ?xed point, a chain drive for the rolls, the chain centerline driving the second roll lying on a. line passing through said point, whereby the pull of the chain cannot. affect the nip pressure of the rolls. 4, A fulling mill comprising a generally L shaped frame, a roll mounted in the horizontal rods there are mounted the throat guides 94, 75 arm of the frame, a support pivoted to the verti- " 2,409,01 1 5 cal arm, a roll mounted on the support for swing ing movement to and from the ?rst named roll, pressure device being connected directly to the clapper for swinging the same within the pack ing box, said packing box, clapper, and ?uid pres a chain drive for the rolls, the centerline of the sure device forming a single unit. chain run driving the second named roll lying 11. A fulling mill comprising a frame, a lower in a line passing through the pivot point of the C11 roll journalled therein, an upper roll swingably support so that the pull of the chain cannot mounted on the frame, a packing box movably affect the nip pressure. 5. A fulling mill comprising a frame, a lower roll, an upper roll, a movable support for the upper roll for positioning the latter in out-of the~way position to expose the lower roll, a pack ing box movable on the frame at one side of the mounted on the frame, throat guides on the pack ing box and extending into position between the rolls, said upper roll being swingable to a po sition freeing the throat guides and thereby per mitting movement of the packing box. 12. A fulling mill including a frame, fulling rolls and extending to the other side thereof, rolls, a packing box, a pivot support on the frame throat guides on the packing box extending be at the rear of the rolls, said packing box extend~ 15 tween the rolls, said upper roll freeing the pack ing to the front of the rolls, said ‘packing box ing box when said out-of-the-way position being mounted for swinging movement on the whereby the packing box is movable to a position pivot support to a position at the rear of the rolls. freeing the lower roll. 13. In a fulling mill, a packing box, a ?uid 6. A fulling mill as recited in claim 5 including pressure device mounted on the packing box, a a detachable connection for the packing box at 20 clapper pivoted on the packing box and depend the front of the rolls. ing thereinto, said ?uid pressure device being 7. In a fulling mill, a. fulling roll, a frame in connected to the clapper for swinging the latter cluding transverse supports at the front and rear in the packing box, and a pivot between the of the roll, a pivot on the rear support, a packing packing box and the fulling mill whereby the box swingingly mounted thereon, and a detach 25 packing box, clapper, and ?uid pressure device able connection at the front support for securing are all swingable as a unit on the fulling mill. the packing box in operative position, said pack 14. The apparatus of claim 13 including a sep ing box being swingable out of the way of the roll arable cover for the fulling mill, said cover com when said connection is detached. pletely covering the packing box, the clapper, 8. A packing box as recited in claim '7 includ 30 and the ?uid pressure device, whereby the pack ing a stop for limiting the movement of the pack~ ing box, clapper, and ?uid pressure device are ing box in inoperative position. located wholly within the cover, the latter being 9. A fulling mill comprising a pair of fulling removable without disturbing the packing box rolls, a packing box having spaced side walls, said packing box extending from the rear to the front of the rolls, a clapper mounted on the packing box to the rear of the rolls and throat guides mounted on the packing box walls at the front of the rolls, a vertical rod on each packing box wall, a throat guide swingably mounted on each rod for adjustment to and from each other in a horizontal direction, a swivel nut on each throat guide, and a right and left hand threaded rod engaging the nuts. mechanism. 15. In a fulling mill, a frame, an enclosure for the mill, a unitary packing box mounted on the frame and completely within the enclosure, a removable top for the enclosure, said packing box including a fulling clapper, a ?uid pressure device pivoted on the packing box, said fluid pres sure device being directly connected to the clapper for moving the same in the packing box, said top being removable to expose the packing box with 10. A packing‘ box, a ?uid pressure device 45 out disturbing the same. mounted on the packing box, a clapper pivoted on the box and depending thereto, said ?uid HAROLD H. BELCHER.