US1886088A - Apparatus for grinding and treating wire clothed rollers - Google Patents

Description

NOV. 1, 1932. I J, DRQNSFlELD 1,886,088

APPARATUS FOR GRINDING AND TREATING WIRE CLOTHED ROLLERS Filed Dec. 21, 1928 4 Sheets-Sheet 1 NV E NTOR: 5me; fironsf'i 5334 4474X? ATr EYs 1932- J. DRONSFIELD APPARATUS FOR GRINDING AND TREATING WIRE CLOTHED ROLLERS Filed Dec. 21, 1928 4 Sheets-Sheet 2 MAJ,

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NOV. 1, 1932. J, DRONSFlELD 1,886,088

APPARATUS FOR GRINDING AND TREATING WIRE CLOTHED ROLLERS Filed Dec. 21, 1928 4 Sheets-Sheet 3 INVE NTOR;

8Y5 ATTORNEYS Nov. 1, 1932. J, DRQNSFIELD 1,886,088

APPARATUS FOR GRINDING AND TREATING WIRE CLOTHED ROLLERS Filed Dec. 21, 1928 4 Sheets-Sheet 4 1 N E NTOR: 5m$ firans/iz/o A TTORNEYS Patented Nov. 1, 1932 JAMES DRONSFIELD, 0F ATLAS WORKS, OLDHAM, ENGLAND APPARATUS FOR GRINDING AND TREATING WIRE CLOTHED ROLLERS Application filed December 21, 1928, Serial No.

Cylinders and rollers clothed with saw tooth wire are Well known in the textile trade and it is common practice to true the wire, as also to grind the wire clothing and to burnish in separate machines.

So far as I am aware it is not however known to grind and burnish such saw tooth wire in a single onemachine, and the present invention contemplates a machine wherein both grinding and burnishing can be effected as successive operations in the one and the same machine.

I propose to construct a machine which will be capable of performing both these operations upon a saw-tooth wire-covered roller and which machine affords facility in getting the clothed roller into position and in removing it.

The important novelty, quite apart from the complete construction, lies in the use of ahead wherein can be carried the traversing grinding mechanism and also the burnishing mechanism each settable to the saw tooth wire covered roller, while the burnishing mechanism can be instantly lowered to any set position, and readily elevated clear out of the way for the introduction or removal of a saw-tooth wire-clothed roller. Further, there is provided a circular setting motion to regulate the operative action of the grinding mechanism and the burnishing mechanism which are controlled from and operate about a common centre.

For the purpose of fully disclosing the invention, I shall now describe the same with the help of the accompanying drawings, wherein:

Fig. 1 is an end elevation from the lefthand end of the machine.

Fig. 2 shows an end elevation from the right-hand end,'and,

Figs. 3 and 3a together illustrate a broken front elevation of the machine.

Fig. 4 is a detail sectional view on an enlarged scale, taken on the line IVIV of Fig. 1.

Referring to the drawings, a, a designates the end standards of the machine, which end standards are connected by a main cross rail (0 upon which are secured a pair of sha 327,544, and in Great Britain March 3, 1928.

hearing brackets b in which is mounted for rotation the axle a" carrying the usual saw-tooth, wire-clothed roller 7-. The axle is removably held in its bearings by a pair of bearing caps b, which are perforated at their opposite ends to permit the passage therethrough of a pair of threaded studs 5 carried by the bearing brackets, the caps being maintained in position by a pair of knurled nuts 6 threaded on the studs b The roller r may be driven by a belt 1 passing over a pulley 1" secured on the axle 1', said belt receiving its motion from a second pulley r secured to the shaft of a chain wheel r over which passes a chain 1", said chain receiving motion from a second chain wheel r secured on a driving shaft 8. A guard 7" may be provided for the chain 1- It will be obvious that the roller may be driven in any other convenient manner.

Secured on the end standardsv a, a at opposite ends of the machine are a pair of supporting brackets 0, each of which is provided on its outer surface with an annular boss or flange a, best shown in Fig. 4, which flange is engaged by a similar flange formed on a circular disc 0 said discs being each partly rotatable around a central pivot c secured in the supporting brackets 0. Each of the discsc is provided on its periphery with a few teeth a in mesh with a pinion secured on a shaft 0 which extends longitudinall through the machine. Secured on the c adjacentto each of said pinions c is a quadrant 0" provided on its periphery with worm gear teeth in mesh with a worm c secured on a shaft 0 having at its outer end a hand-wheelc for afi'ording manual rotation of the shaft in a manner similar to the gear well known in connection with setting motions for card grinding machines. From this description it will be seen that when the hand wheel 0 is rotated in one or the other directions such rotation will be transmitted to the discs 0 so that the mechanism associated therewith as hereinafter described will be operated.

Suspended from the pivots c of the discs 0 are a pair of pendent bracket arms or hearing plates d, each of which is secured to its comparison disc by a bolt 11 passing through an elon ated perforation in the arm and secured in t e disc, (see Fig. 2), whereby the arm is capable of slight angular adustment with relation to the disc. The racket arms d are provided at their lower ends with hook-shaped portions d forming bearings for a shaft 6 on which is secured the traversing grinding roller 6 and a diflerential motion 6 This differential motion is of well known construction, it having been shown in my prior Patents Nos. 500,322 and 1,785,731.

It will be obvious from the foregoing that when the discs 0 are rotated in one direction the lower ends of the arms at will be moved toward the saw-toothed wire-covered roller 1' thus carr ing the traversinggrinder e into contact with said roller, whereas rotation of the discs in the opposite direction will carry the ginder out of contact with the saw-tooth roller.

One of the objects of the invention is to provide burnishing means .so disposed and operated relatively to the grinding roller 6, that, in the normal operation of the device, the motion which carries the grinding roller 6 out of contact with the saw-tooth, wireclothed roller 9" will carry the burnishing means into contact with said saw-tooth roller, and vice versa, means being also provided whereby both the grinding roller and the burnishing means may be carried out of contact with the saw-tooth, wire-clothed roller thereby to permit the ready removal of said roller from its bearin s and its replacement therein. To this end mount on pivot studs or centres 03, and at the rear faces of the circular discs or large wheels 02, brackets h, h whose fulcrum is on the pivot studs. One of these brackets h is. a plane type, and provided with an opening for the receptioxof a bearin g for one end of the axle of a burnishing rush or roller g, while the other bracket h has secured thereto a bridgingpiece k2 which projects laterally over a circular disc 02 at The end where the operator controls. This bridge piece 7L2 has a curved slot h3 concentric with the circular disc 02 and lying in a plane parallel to the face of the latter.

The brackets h and h in addition to being mounted on the fixed studs or centres 03 are also mounted on and pinned to an independent shaft 7'2 disposed in axial alinement with the studs 03, each end of which shaft 7'2 extends part way through the fulcrum hubs h 9 of the brackets h and 71. (see Fig. 4). The portions of the hubs 729 into which the ends of the shaft ;)'2 do not penetrate obviously form bearings to fit closely the shaped inner extremities of the studs or centres 03. This combination ensures a rigid interconnection between the brackets h, h and a stiffening of the structure on this axial line.

To return to the bridge-piece b2 and the slot therein marked h3. There is a stud k4 extending laterally from the circular disc 02 through said slot b3, and clamping provision in the form of a nut k5 threaded on said stud and having a lengthened rod or bar k6, by which the bridging structure M2 and bracket b can be clamped at any time so as to fix the relative disposition of the burnishing brush or roller 9 to the traversing grinder e. Releasing of the clamping nut k5 will allow the bridging piece b2 and interconnected brackets h, h to become movable a distance governed by the length of the slot k3. In order that a definite downward movement of the burnishing brush or roller 9 can be counted on or arranged for, I provide a milled headed graduating screw it? in the bridging piece 722 which can be set as to its lower extremity to the stud k4 in the curved slot k3 so that even if the clamping nut k5 be released the burnishing brush or roller 9 cannot fall or move beyond the regulated amount (governed by the position of the graduated screw 7L7). Thus, the set of the burnishing brush or roller 9 can be governed with respect to the disposition of the traversing grinder 6. This is in spite of the fact that, on releasing the nut k5, the burnishing brush or roller 9 can be lifted by grasping the handle b8 and rotating the bracket h on its pivot the full remaining range of the slot b3 thereby to permit removal or introduction of the saw-tooth wire clothed roller 1' to be dealt with.

The opening or lifting of the burnishing brush or roller 9 as above stated gives free and unrestricted facility for introduction or removal of the saw-tooth wire-clothed roller 1' and the burnishing brush or roller 9 can be held open or elevated by tightening the clamping nut 715. When the said roller 7' is in place, the burnishing brush or roller 9 can be lowered to the desired position by releasing the nut h5 and setting the graduated J screw k7. The relative disposition of traversing grinder and burnishing brush or roller is thus under full control at all times. If the actuating hand-wheel 010 is operated in one direction, then the traversing grinder e comes into action on the roller 1. On completion of the grinding, then by turning the hand-wheel 010 in the opposite direction, the traversing grinder e is moved away from the roller 1' and the burnishing brush or roll er 9 comes into action. The burnishing brush or roller group has combined therewith a traverse motion as indicated at i in Fig. 3, the link connection 71 being pivoted to 2. lug depending from the bearing g2 for the shaft of the burnishing brush .or roller g. Such traversing motions are well known in the art and it is therefore believed that further description herein is unnecessary.

There is preferably provided a curved CPI sheet metal guard j for the burnishing brush or roller 9, which guard j is carried on arms 7", j, said arms having hubs or sleeves 1'3 fitting the shaft 3'2, as indicated in broken lines in Figs. 3 and 3a. As a result when the brackets h, it move and carry the burnishing brush or roller down or up the guard moves along therewith, being supporte from the shaft i2 which moves with the brackets h, h.

The movable bracket structure it at the manipulating end of the setting motion, as hereinbefore stated, is provided with a handle k8 by which to raise and lower the burnishing brush or roller mechanism when the clamping nut k5 is released.

The manner of driving the traversing grinder e and the burnishing brush or roller 9 can be varied, but I propose to use a double V leather link belt, indicated by the line k in Figs. 1 and 2. This belt passes from the grooved pulley k on the main driving shaft 8 upwards over a grooved pulley 704 on a pivoted weighting compensating bracket k5 fulcrumed at 106, then partly around a grooved pulley 753 on the axle of the burnishing brush or roller 9 and then around a portion of the periphery of a grooved pulley k2 on the traversing grinder axle e and so down again to the grooved pulley 10 on the main shaft 8.

This drive compensates for the necessary settings or adjustments of the traversing grinder e and the burnishing brush or roll- 'i he action of the machine is such, that the traversing grinder e grinds from the point to the back of the teeth and therefore does not spoil the point or effective edge and leaves any burr at the backof the tooth and consequently the burnishing brush or roller can remove these burrs on the long edges of the teeth. I find these burrs can be readily removed from the long edges of the teeth by the burnishing brush or roller g.

Rollers can be ground and burnished very efi'e'ctively and expeditiously by the new machine.

The device marked 'D is the blown dressing attachment which is traversed to dress the saw-tooth wire clothing by the engagement of its dressing tool or tools with said wire.

It is also to be understood that rollers or cylinders clothed with saw-tooth wire and of various diameters, and lengths, can be operated on by adjusting and setting the brackets, and their supports, on and in connection with the bed of the machine, all of which is known.

The mode of operation of the apparatus is as follows: The saw-tooth roller r is supported by its axle r in the bearing brackets and the removable caps b placed in position on the studs 6 and the clamping nuts I) tightened thereon. The dressing device D is then adjusted as to its known tools between the ranks of saw-tooth wire on roller 1* so that When'the roller is driven by belt 1- the saw-tooth tools are traversed and the wire is dressed. After dressing the device D can be backed off by rotating the screw D anticlockwise. Thereafter, the teeth of the sawtooth wire are ground by the known traversing grinder e which is. moved into contact with roller r by operating the hand Wheel 0 as herein before described. After the teeth have been sufficiently ground, the hand wheel 0 is rotated in the opposite direction thereby to swing the grinder back or out of action and simultaneously carry the burnishing brush g into contact with the teeth of roller 1' to burnish them as hereinbefore described. On completion of the burnishing operation, the brush may be moved back by again reversing the rotation of the hand wheel, whereupon the bar it may be lifted to release the nut it, and the operator may grasp the handle it and raise the burnishing brush as far as the stud k**and slot 72. will permit, whereupon the finished roller 1 may be removed and another inserted.

I declare that what I claim is:

1. An apparatus for grinding and burnishing saw-tooth wire on rollers, comprising a framework, adjustable means mounted thereon for carrying a roller to be operated upon, driving means for the roller, brackets supported on said frame, a movable head mounted for rotation on said brackets, a grinding device pivoted for bodily movement concentric with said head and rotatable about its own axis, means for traversing and driving said grinding device, a burnishing brush movably supported on concentric relation to said head, means for adjusting the brush angularly with relation to the head, means for driving said burnishing brush, manually operable means for moving the brush supports, and manually operable gear mechanism associated with said head for rotating the same thereby to bring the grinding device and burnishing brush alternately into action on said roller.

2. An apparatus for grinding and burnishing saw-tooth wire on rollers, comprising means for removably supporting for rotation a roller to be operated upon, means for driving said roller, a movable head pivotally supported in juxtaposition to said roller, a grinding device supported for rotary and axial movement at one extremity of the movable head, means for driving and traversing said grinding device, a burnishing device supported in movable brackets in the movable head, means for adjusting said brackets angularly with relation to the head, means for clamping the brackets in adjusted positions, means for driving the burnishing device, and manually operable gearing associated with the head for bringing the grinding device and the burnishmg device into action alternately.

3. An apparatus for grinding and burnishing saw-tooth Wire on rollers, comprising means for removably supporting for rotation a roller to be operated upon, means for driving said roller, a movable head pivotally supported in juxtaposition to said roller, gearing for actuating said head, supports pivoted concentrically with the head and carrying a rotatable and axially movable grinding device, means for traversing and driving said grinding device, brackets adjustable angularly with relation to said movable head, means for clamping said brackets in any adjusted position, burnishing device carried in said brackets, means for driving said burnishing device, and means for supporting the movable head in one position during grinding and in another position during burnishing.

4. An apparatus for grinding and burnishing saw-tooth Wire on rollers in a single apparatus, comprising adjustable supports for the roller to be acted on, means for driving said roller, a pivotaly mounted head supported in juxtaposition to said roller, adjustable brackets mounted for pivotal movement concentric with said head, a grinding device carried by the head and mounted for rotary and axial movement, means for traversing said grinding device, a burnishing brush mounted for rotation in said brackets, means for driving said grinding device and burnishing brush, manually operable gearing associated with said head for bringing the grinding device and the burnishing brush into operation alternately, and means for adjusting and clamping the brackets in any adjusted position with relation to the movable head.

5. An apparatus for grinding and bur nishing saw-tooth Wire on rollers, comprising means for supporting and driving a roller in position to be operated on, a head pivotally supported in juxtaposition to said rdller, supporting brackets mounted for adjustment on said head, manually operable gearing engaging said head for actuating ,the same, a rotatable and exially movable grinding device supported for bodily movement about the axis of said head, means for traversing said grinding device, a burnishing device mounted for rotation in said supporting brackets, means for driving said grinding and burnishing devices, means for adjusting said brackets and clamping them in adjusted positions, disengageable brackets permitting wire roller, and means for holding the grinding and burnishing devices in aitern ate operativepositions.

6. An apparatus for alternately grinding and burnishing saw-tooth Wire on rollers, comprising means for removabiy supporting for rotation a roller to be operated upon, means for driving said roller, supporting brackets disposed adjacent to the ends of said roller, a movable head mounted for rotation on said brackets and carrying a grinding roller and a burnishing brush, said grinding roller and burnishing brush being inclependently adjustable angularly of said head, independent means for clamping said roller and brush in adjusted positions, means tor traversing and driving the grinding roller, means for driving the burnishing brush, gearing associated with said head for actuating the same, and adjustable means for regulating the angular movement of the burnishing brush thereby to facilitate insertion and removal of the roller.

7. An apparatus for grinding and barnishing saw-tooth Wire on rollers, comprising means for sup orting aroller for rotation in position to e operated on, means for driving said roller, supporting brackets disposed adjacent to the ends or" the roller, gear wheels mounted for rotation on said brackets, supporting members pivoted for movement concentric with said gear Wheels, a grinding device mounted for rotation in said supporting members, means for clamping said supporting members against movement independently of the gear Wheels, means for traversing and driving said grinding device, independently movable supports pivoted for movement concentric With said gear wheels, a burnishing brush mounted in said supports, means for clamping said supports against movement independently of the gear Wheels, adjustable means for limiting the movement of the burnishing brush supports, and means for driving the burnishing brush.

In testimony whereof I have signed my name to this specification.

JAMES DRONSFIELD.

ready removal or insertion of the saw-tooth

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