US1809144A - Apparatus for covering rolls with toothed wire - Google Patents

Description

June 9, 1931. J, A. NOONAN 1,809,144

APPARATUS FOR COVERING ROLLS WITH TOOTHED WIRE Filed Jan. 7, 1950 2 Sheets-Sheet 1 1 f w l k R IN 0 q v Q I\ 1 3 1 a I so 1 4 Jib June 9, 1931. J. A. NOONAN 1,809,144

APPARATUS FOR COVERING ROLLS WITH TOOTHED WIRE Filed Jan. '7, 1950 2 Sheets-Sheet 2 or in) Patented June 9, 1931 UNITED STATES,

PATENT OFFICE JAMES'A. NOONAN, on LownLL. MASSACHUSETTS, ASSIGNOR pro 0. G. sARennns sons oonronn'rron, on GRANITEVILLE, MASSACHUSETTS, A CORPORATION on Massa- CHUSETTS Application filed January 7, 1930.. Serial N'o. 419,171

The principal objects of this invention are to provide mechanism whereby cylindrical ungrooved rolls can be covered with toothed wire which has a rectangular cross-sectien with its height materially greater than l'tS' width; to provide means whereby each strand of wire as it is wound will be held against the next strand firmly but yieldingly so that it will not get out of place or tipover, thus necessitating the stopping of the machine and the straightening of the wire by hand; to

provide means for eliminating the hammering of the strands together which has been necessary heretofore and which has been a A slow and unsatisfactory job; and to provide a continuous and automatic'means for wind ing the wire, thus greatly expediting the operation. Y I I Other objects and advantages of the invention willappear hereinafter.

Reference is to be had to the accompany- 111g drawings, in whlch Y Fig. 1 is a side vlew of a machine construct-- ed in accordance with this invention shown in v slides. r I s On each tool slide is-a tool holder 14 but in place of a tool this holder carries a bar 15.

operation Fig. 2 1s a sectional view on the line 2- 2 j of Fig. 1 showing the winding apparatus 1tself in end elevation;

Fig. 3 is a detail sectional viewshowing" the means for continuously pushing each strand up against the next one; j

Fig. 4 is a sectional view of the cylinder showing one form of toothed wire applied thereto by this apparatus; and

Fig. 5 is a sectional view onthe line 55 of. Fig. 1 showing the adjustment of the feeding-in guide roll.

For the purpose of making garnetting cylinders and the like of toothed wire of a character similar to that shown in Fig. 4, it

has usually been necessary to cut a helicalgroovein the cylinder involving an eXpend1- ture of time which would be entirely eliminated if the wire could be wound on an un groovedcylinder. Attempts have been made to accomplish that result but they have been crude and the wire has always had atendency to tip over or to leave spaces between the I strands. This necessitated the stopping of the machine and the straightening of the Wire by hand hammering. y This made "the e process slow and the completedj ob could not be satisfactory. v

This machine is designed to accomplish the work very rapidly'and avoid the delays ingrooving the cylinder and straightening the wires on its surface. 'With this machine the wires are arranged in proper place and all tendency for them to tip over or be wound with spaces between the strands is avoided. This is done by holding each strand firmly but yieldingly in place as it is laid on the* cylinder. 1

For the. purpose of carrying out this invention, I provide what is practically a lathe 1O havinghead and tail centers for the smooth cylinder 11 on which the wire is to be wound. This cylinder is rotated as the [work is usually rotated in lathes. the front and rear a carriage 9 each carrying I provide both on 1 a tool slide 12 operated inthe usual way in the case of a lathe by a feed-screw 13 on'the front of the lathe. fThe carriage is connected across so that it controls both of the tool The twd bars 155 placed preferably diamet rically opposite each otheraat the sides of the cylinder 11, carry thetwohalves 16 of a complete ring." :These twohalves are firmly se cured to the two bars 15and they are also preferably secured' together by straps 17.

Throughjthis ring 16 are passages for receiving' rods 18 which arefreely.slidable'therein and have heads 'or collars 19 to 'limittheir motion in one direction: Each rod is pro-;

vided with acoil spring 20 on its surface" which bears on one endon the ring 16 and at the other end on a flange 21'carried by a second ring 22. This is a split ring with. its ends held together by a bolt27. Each rod 18 is provided with-a reduced screw-threaded end23 which is held tojthe flange 21 by a nut 24-. "As these flanges 21 are firmlysecured to the ringQQfthat ringwill be forced forward by spring pressure, It bears onthe lastl'aid strand or convolution of thetoothed' Wire 25 wound on the cylinder. w

It will be obvioustha-t, as the cylinder isriage 9 on the front of the machine.

turned and the feed of the tool holders maintained in the proper relationship to the rotation of the cylinder, the wire properly fed will be wound on the cylinder in layers, as indicated in Figs. 1 and 3, and always held up against the shoulder 26 on the cylinder by the ring 22. This ring is pressed forward with a yielding pressure due to the springs and at all times this pressure is exert ed so that the machine automatically pre vents the wire from tipping over and spread ing on the cylinder. These two sources of delay are entirely eliminated and there is no necessity for previously grooving the cylinder. Thus two important elements of the cost of winding these; cylinders or rolls are done away with. Also the product is practically mechanical and irregularities in the winding are eliminated.

For the purpose of guiding the toothed wire from a reel or coil on which it is located, a guide wheel 30 is employed mounted on a. bracket 31 which is pivotally mounted on a vertical stud 32 on a. base 38. It is adapted to be adjusted through a bolt and slot arrangement 34 at the top of the car- Wire also passes through a guide 35 which is fixed on one of the flanges 21 on the ring 22 and in this case it travels along with this ring and the'bracket as they are both mounted to be cont-rolled directly or indirectly by the feed-screw 13.

Although have illustrated anddescribed only one form of the invention, I am aware of the fact that modifications can be made therein by any person skilled in the art with-.

out departing from the scope of the invention as expressed in the claims. Therefore I do not wish to be llmited to the exact rorm shown but what I do claim is 1. Ina machine for winding toothed wire on a smooth cylinder, the combination with means for rotating the, cylinder, of a feed screw, a tool slide mounted oneach side of the cylinder and both controlled by-said feed screw to move along the cylinder at a predetermined rate, a pair of tool holders carried by said tool slide, a ring surrounding the cylinder, means in the tool holders forsupporting the opposite sides ofsaid ring, a second ring surrounding the cylinder arranged close to its surface, and yleldmg means supported by the first ring for holding the second ring into position for holdingeach convolution of Wire in position as the wire. is wound.

2. In a machine for winding toothed wire on smooth cylindrical surfaces, the combina tion with means for rotating the cylinder,'a tool slide mounted on each. side of the cylinder and both controlled to move along the cylinder at a predetermined rate, a pair of tool holders carried by said tool slides, a

member carried by the tool holders, a ring surrounding the cylinderarranged close to its The surface, and yielding means supported by said member for forcing the ring against each convolution of wire on the cylinder as the wire is wound.

3. In a machine of the character described, the combination with a tool post and means for moving it along, of a bar carried by the tool post, a ring supported by said bar, springs carried by the ring, and a second ring spaced from the first for engaging the convolution of wire being wound and exerting a yielding pressure thereon.

4:. In a machine of the character described, the combination with a machine of lathe type having centers for supporting a cylinder and having a tool slide and means for operating the tool slide at a predetermined rate, of means carried by the tool slide for exerting a constant yielding pressure on each convolution of wire to hold it on the cylinder in position while being wound, and a wire guide mounted to move with the tool slide for guiding the wire into position adjacent to said means. V

5. In a machine of the character described,

the combination of a ring adapted to sur-.

round a cylinder to be operated upon, said ring having longitudinal passages therethrough, rods slidably mounted in said parsages, a spring on each rod, a second ring spaced from the first and parallel therewith having flanges projecting therefrom in which the ends of said rods are fixed, whereby the springs force the second ring along the cylinder during the operation of the machine, and movable means for supporting the first ring and moving it along the cylinder during the winding operation.

6. In a machine of the character described, the combination of a ring adapted to surround a cylinder to be operated upon, a sec- JAMES A. NOONAN.

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