US1521372A - Winding machine - Google Patents

Description

1,521,372 8. F. JOHNSON WINDING MACHINE 6 Sheets-Sheet 1 Filed Man 22, 1925 A TTORNEYJ B. F. JOHNSON WINDING MACHINE Filed May 22, 1925 6 Sheets-Sheet 2 w u r y 236, 235, Z42 7 226 Z35 [37 Z39 Z9- 7 79 INVENTOR. Eff/W750 fL/a/m/sa/v A TTORNEYJ Dec. 1,521,372

B, F. JOHNSON WINDING MACHINE Filed May 22. 1925 6 Sheets-Sheet 4 52 75 ATTORNEYJ Dec; 30, 1924. 1,525,372

B. F. JOHNSON WINDING MACHINE- Filed May 22, 9 6 Sheets-Sheet 5 A TTORNE Y.

Fatenteol Dec, 3Q,

nnnnann r. ronnson, or annsn'r orrY, nnw .rnnsnr.

To all whom it may Be it known that l,

a citizen of the U11 Jersey City, in the new and useful clear, and exact desc This invention relates winding strands thread, ribbon or or bobbins, and chines for winding or helices for use cal apparatus.

in variou Application filed may 22,

ited

WINDING MACHINE.

BERNARD F. JoHNsoN,

States,

residing at county of Hudson and ription.

have invented certain s in W lIldlll to machines for of material such as wire, filaments into coils, helices more particularly to macopper wire into coils s kinds of electri- The particular machine,

which will be herein described for the purpose of explaining t is of the same general tion, those set forth in U. issued July 31, 1900, arv 15, 1921, and l arated Zones upon aupon the other, and

ed to introduce or in tween the adjacent insulation purposes building up of the coils. of the coils are finished a and at that instant upon foundation for the When the desired number he nature of the invencharacter as S. Patents Nos. 654,538, 1,368,536, issued Febru- $27,509, issued August 29, 1922. In the patented machines a plurality of coils are wound simultaneously in sepsingle spindle or mandrel form, the convolutions of wound in layers which are superposed one wire being the machines are adaptect sheets of paper helayers of each coil for during the a sheet winding or The layers in all t the same instant,

of paper, of one wrapping the length of the coils is delivered to the d thereon as a next succeeding layer.

of layers have been wound upon the mandrel form, the machine is stopped and the spindle with all of the coils thereon removed together as a unit.

'lhe wound unit is subsequently divided 111- to individual coils layers of paper in the coils.

involve many cams by severing the various the space or zone between. Machines of this type necessarily and interrelated movemachines be made as simple, efiicient and.

durable as possible so that they will require little attention after having once been propalso very desirable that the paper which is inserted between the erly. adjusted. It is difierent wire layers be inserted always unisure insertion of the paper 1923. Serial Ito. 640,686.

to increase their eiliciency,

advantages will be apparent from the following description of an embodiment of the invention and the novel features will be particularly pointed out hereinafter in claims,

In the accompanying Fig. 1 is a plan of in acordance with the invention;

Fig. 2 is a front elevation of a portion of the same;

Fig. 3 is a transverse sectional elevation of the same, taken substantially along the line 3-3 of Figure 1;

Fig. i is another transverse sectional elevation of the same, taken substantially along the line 1-4- of Figure 1;

Fig. 5 is a sectional elevation of a portion of the reversing mechanism of the same, taken substantially along the line 5-5 of Figure 1,

Fig. 6 1s a sectional elevation of another portion of the reversing mechanism, the section bein taken substantially along theline 6-6 of ligure 1;

Fig. 7 is a. transverse sectional elevation of the machine, taken substantially along the line 7-7 of Figure l Fig. 8 is a similar elevation with the parts in a different relative position which they assume during the operation of the machine;

Fig. 9 is a sectional elevation of a portion of the reversing mechanism, the section being taken substantially along the line 9-9 of Figure 1;

Fig. 10 is a sectional elevation similar to figures 7 and 8, with the parts in a diilerent relative position;

F 11 is similar elevation with the parts in the relative positions they assume at another point in the cycle of operation of the machine;

Fig. 12 is a similar view or the same with drawing a machine constructed the parts in another relative position-which they assume at another point in the cycle of operation of the machine;

Fig. 13 is a sectional elevation through a portion of the machine, taken substantially along the line 13-13 of Figure 7 and Fig. 14 is a sectional plan of a portion of the machine taken substantially along the line 14-14 of Figure 13.

In the. illustrated embodiment of the invention a suitable frame base 1 serves as a support for the operating mechanism. A suitable prime mover, such as a motor, (not shown) is provided, which by means of a belt 2 (see Fig. 1) drives a pulley 3 that is fixed upon a shaft 4. The shaft 4 is rotatably mounted in a suitable bearing 5 and a bearing housing 6. Within the housing 6 the shaft 4 is provided with a worm screw 7 meshing with and driving a worm wheel 8, which is carried by a shaft 9 extending at right angles to, but offset from, the shaft 4. The shaft 9 is rotatably mounted in the housing 6 and in a suitable bearing 11, and carries thereon a pair of discs 12 and 13. The disc 12 is fixed to the shaft T for rotation therewith and the disc 13 is keyed to the shaft so as to rotate therewith and slide thereon to a limited extent. Friction discs or washers 14 are provided upon the shaft 9 between the discs 12 and 13.

A cam 15 is rotatably mounted upon the shaft 9 between the friction discs or washers 14. A collar 17 is slidable upon the shaft 9 for rotation therewith, and a helical sprin 1-8 is compressed between the collar 17 an the disc 13 so as to yieldingly press or clamp the disc 13 against the cam element 15, and the latter against the disc 12. A removable pin 19 on the shaft 9 prevents movement of the collar 17 in a direction to release the spring 18. The spring 18 thus serves to clamp the cam 15 frictionally to the shaft. If for any reason it is desired to unclamp the cam from the shaft 9, it is merely necessary to remove the pin 19, whereupon the collar 17 may be shifted longitudinally of the shaft 9, by a suitable operating handle 20 which is pivoted to the frame and carries a pin 21 running in an annular groove in the collar. The shaft 4 extends the housing 6 and into a housing 22, where it is connected to a suitable dial indicator 23 for indicating the number of revolutions of the shaft 4. I

The end of the shaft 4 which projects through the bearing 5, is provided with an axial recess in which a suitable winding s indle 24 may be removably chucked. In t e type of machine illustrated this winding spindle is square in cross section and carries upon one face a suitable Washer 25 whichv is secured thereagainst by a screw 26. The tubular mandrel or form 27, upon which the plurality of coils are to be wound, is

through slid over the spindle 24 until an end edge extends beneath the washer 25. By tightening the screw 26 the form may be clamped to the spindle and held against axial .displacement thereon. In a small frame 28 at the opposite end of the spindle 24, a bearing block 29 is mounted for oscillation about an axis parallel to, but off-set from, the axis of the spindle 24. The bearing block carries a conical bearing pin 30 which is adapted to enter a recess in the endof the spindle 24 and rotatably support the same. The pin 30 is mounted upon the bearing block 29' so as to be in alignment with the axis of rotation of the spindle 24 when rotated about its axis into one position.

The bearing block 29 is also free to slide upon its pivotal support in the frame 28, being stressed toward the winding spindle by a compression spring 29, and a pin 31 on the bearing block 29 is adapted to enter a recess 32 in an end wall of the frame 28, when the bearing block 29 is shifted axially in a direction to carry thebearing pin 30 into supporting position for the spindle 24. he engagement of the pin 31 in the recess 32 prevents oscillation of the bearing block until the block has been sufiiciently to remove the bearing pin 30 from engagement with the spindle 24.

A small spindle mounted in an outer end wall of the frame 28 and carries upon its outer end an operating handle 34, and upon its inner end, and adjacent the block 29, an offset arm 35. l/Vhen the handle 34 is operated in one direction, it will carry the offset arm 35 into a position between the block 29 and'an end wall of the frame 28 so as to lock the hearing block 29 in supporting engagement with the spindle. A spring 36 (see Figure 3) is connected between the offset arm 35 and any suitable part of the frame 28, so as to normallyhold the offset arm in a position in which it locks the, bearing block against axial displacement.

A shaft 37 (Figs. 1 and 5) is rotatably mounted in a bearing 38,. secured to the frame base 1, so as to extend along the rear of the frame base 1 parallel with the shaft 4, and in the plane of the shaft 9. The shaft 37 extends in opposite directions from the bearing 38, and has fixed upon one end thereof a clutch element 39. Between this element and the bearing is loosely mounted a bevel gear 40. A helical spring 41 (Fig. 5) is disposed in complemental recesses 42 and 43 inthe abutting faces of the clutch element 39 and the bevel gear 40, and the end face of the bevel gear 40 facing the clutch element 39 is provided with clutch teeth which cooperate with comple: mental clutch teeth on the abutting end face of the clutch element. The spring 41 normally stresses the bevel gear 40 against the withdrawn axially or shaft 33 is rotatably ian hearing 38 and in a direction out of clutching engagement with the clutch element 39.

Upon the opposite side of the bearing 38 the shaft 37 is provided with a second clutch element 44, which may be secured to the shaft 37 for rotation therewith in any suitable manner, such as by a pin 45 which passes through both clutch element and shaft. A second bevel gear 46 is loosely mounted upon the shaft 37, between the clutch element 44 and the bearing 38 and the abutting end faces of the bevel gear 46 and clutch element 44 are provided with complemcntal clutch teeth. A coil spring 47, similar to the coil spring 42, is disposed in complemental recesses in the abutting end faces of the bevel gear 46 and clutch element 44, so as to normally press the bevel gear 46 against the end face ofthe bearing element 38.

When the shaft 37' is displaced axially in one direction, such as-to the left from the position shown in Figure 5, the clutch element 39 will be carried out of clutching engagement with the bevel gear 40 and the clutch element 44 will be carried into clutching engagement with the bevel gear 46. The spring 41 will keep the bevel gear 40 against the bearing 38 and prevent it from shifting accidentally into clutching engagement with the clutch element 39. When the shaft 37 is shifted to the right, and into the position shown in Figure 5, the clutch element 39'will move into clutching engagement with the bevel gear 40 and the clutch element 44 will move out of clutching engagement with the bevel gear 46. The spring 47 maintains the bevel gear 46 against the bearing 38 so as to prevent its accidental rnoven'ient into clutching engagement with the clutch element The bevel gears 40 and 46 are continually in mesh with a bevel gear 48 which is ,mounted upon the end of the shaft 9 adoining the shaft 87. Thus when the shaft 9 is driven from the shaft 4, the bevel gears 40 and 46 will be continually driven in opposite directions. By shifting the shaft 37 in either direction, to the limit of its movement, either of the clutch elements 39 and 44 may be engaged with the bevel gears, so that the shaft 37 will be. driven therefrom in a direction corresponding to the direction of rotation of the particular bevel gear which is at that time clutched to the shaft.

A collar 49 (Figs. 1 and 5) secured by a pin 50 to the shaft 37,- in a position slightly spaced from the clutch element 44. Between the collar 49 and the clutch ele' ment 44, a bushing 51 is loosely mounted upon the shaft for rotation thereon, the inner diameter of the bushing being slightly greater than the diameter of the shaft.

Referring particularly-to figures 1 and 4,

a lever .32 is pivotally included at .53 to a suitable bracket Til carried upon the frame base 1, between the shaft 37 and the cam element 1:). The end of the lever 52, at the side of its pivot towards the shaft 37, is forked, the arms 52 of which embrace the bushing 51 (Figs. 1 and 5). A screw pin 55 is provided upon each arm 52* of the forked end of the lever so as to extend radially of the shaft 37 from opposite sides and engage in the bushing 51. The bushing 51 is therefore held against rotation with the shaft. and when the lever 52 is oscillated about its pivot, it will be shifted in a direction axially of the shaft. Since the bushing 51 is confined between the clutch element 44 and the collar 49, the bushing 51, in moving axially, will shift the shaft 37 axially in a direction corresponding to the direction of movement of the bushing. The looseness between the bushing and the shaft compensates for the slight arcuate movement of the pins 5:) when oscillated about the pivotal axis 53.

The end of the lever 52, opposite the forked end, is provided with an aperture through which passes loosely a rod 56 (Figs. 1 and 4) in a direction parallel with the shaft 37. The rod 56, upon the end passing through the lever 52, is threaded, Fig. 1) and is provided. with nuts 57 in spaced relation thereon and upon opposite sides of the lever 52. A helical spring 58 is disposed on the rod 56 between each nut 57 and the lever, which may be placed under varying degrees of compression by adjusting the nuts along the rod 56 and toward the lever 52 to various extents. The springs 58 press against opposite sides of the-lever 52, and when the rod 56 is operated in either direction to shift the shaft 37 and thereby operate the clutches, the springs 58 will yield in case. the clutch teeth which are to be brought into engagement do not mesh and continue the stress upon the lever in a direction to cause a clutching of the clutch. element in one of the bevel gears as soon as the abutting clutch teeth thereof are brought into alignment with one another.

The rod 56 is pivotally connected by a pin 59, to the upper end of a rocker '..r1n 60, (see Figs. 1, 4 and 6) and the latter is secured at its lower end to a shaft 61, ex tending parallel with the shaft 9 and rotatably mounted in suitable bearings upon the frame base 1. Thepivot pin 59, by means of which the rod 56 is connected to the roller 60, extends in a direction normal to one face of the cam 15 and acts as a follower running in a cam groove 62 (see Figs. 1 and 6), formed'in a face of the cam 15. The cam groove 62 is divided into two sections which are approximately semi-circular about the axis of rotation of the cam,

the radius of one section 62* being less than 67, secured upon the frame base 1.

the radius of the other section 62. The adjoining ends of the semi-circular portions of the cam groove are connected by inclined guideways 62. Thus, as the cam 15 rotates through a half revolution from the position shown in Figure 6 and in the direction of the arrow, the pin 59 will be carried in a direction away from the shaft 9 as it moves into the cam groove section 62*, and will be held in that position for approximately a half revolution. When the rod 56 is 0 erated bythe cam groove, it serves to s ift the clutch controlling lever 52 and effect a shifting of the clutch elements for a purpose to be hereinafter explained.

The periphery of the cam 15 is provided with two diametrically arranged lugs 63 and 64 (Fi s. 1 and 6) which are disposed in offset p lanes, transversely to the shaft 9, so that they will move in different paths of rotation when the cam 15 rotates. 'A pawl 65 is fixed to a shaft 66 which extends in a direction parallel with the shaft 9 and is slidably mounted in suitable bearing blolclks 1e shaft 66 is slidable axially to itself in the bearing blocks 67 and, upon the end extending into one of the bearing blocks, is pro; vided with rack teeth 68 (see Fig. 1) which mesh with a. pinion69. The pinion 69 is carried by a vertical stub shaft 70 (Fig. 6) which is rotatably mounted in one of the bearing blocks and extends vertically above the bearing block. The upper end of the shaft 70 is provided with a crank arm 71 (Fig. 1) which, at its outer end, is pivotally connected by a pin 72 to a rod 73.

The rod 73 extends longitudinally of the machine and is pivotally connected, by a pivot 74, to a plate 75 which is mounted upon the frame base 1 for sliding movement lengthwise of the machine, the plate being guided and limited in its movement b headed guide pins 76 which pass throu 1 elongated slots 77 in the plate-and enter t e frame base 1. The plate 7 5 is provided with upstanding ears 7 8 which rotatably and nonshdably support a threaded shaft 79, also extending lengthwise of the machine, that is, in the direction of slidin movement of the plate 75. An operating utton 80 (Fig. ,1) is provided upon one end of the rod 79 by which the rod may be rotated in the bearing ears 78.

Between the bearing ears, the rod is threaded in o posite directions at the opposite ends. hat is, the threads from the central portion toward one end are left hand threads, and those from the central portion toward the opposite end are right hand threads. Nuts 81 are provided upon each threaded portion of the rod 79, and each nut is providedwith a flattened peripheral portion 82 (see Figs. 3 and 9) which fit rather closely against the upper face of the plate 75 so as to prevent rotation of the nuts withtively to the plate 75. Thus when the rod v79 is rotated, by rotating its button 80, the

nuts 81 will be held against rotation bythe engagement of their flattened peripheral portion 82 with the plate 75, and by reason of their threaded engagement with the rod 79 the nuts will be separated or caused to approach, depending upon the direction of rotation of the rod 79. To set the nuts 81 at any selected distance apart, it is merely necessary to rotate the rod 79 sufficiently go carry them into the desired relative posiion.

Referring particularly to Figures 1 and 5, a shaft 83 is rotatably mounted in a bearmg 84 carried by the frame base 1, and is disposed in alignment with the shaft 37;

The collar 49 on the end of the shaft 37, extends for some distance over the abutting end of the shaft 83 and is provided with diametrically disposed longitudinally extending slots 85. A pin 86 is set into a slot in the end of the shaft 83 so as to extend diametrically thereacross and from opposite sides thereof into the elongated slots 85. The pin 86 is secured against separation from the shaft 83 by means of a smallerpin 87 which passes through both theshaft and the piii 86. Thus, when the shaft 37 is rotated, the shaft 83 will be driven therewith through the collar 49 and the-pin 86. At the same time the shaft 37 will be free to slide longitudinally to an extent permitted bythe slots 85.

A gear 88 (Fig. 5) is secured upon the shaft 83 by a pin 89. An arm 90 of a swinging frame 91 (Figs. 5 and 14) is rotatably mounted on the shaft 83 between a collar 92, joined to the shaft by a pin 93,

and the bearing 84 upon the opposite face thereof from the gear 88. The shaft 83- is capable of a limited longitudinal sliding movementwhich is limited in a direction to the left (Fig. 5) by the collar 92, and in the opposite direction by the gear 88, the extent of movement being substantially equal to that provided for the shaft 37. An

adjustable stop 94 is provided at one end of the frame base 1, so as to extend into and abut against the end of the shaft 83 and limit movement of the shaft in a direc- 83, the sleeve 96 is adjusted upon the collar 49 in a direction to abut against the pin 80 (Figs. 1 and and force it to the opposite end of the slots 85. This will prevent relative movements between the shafts and effactually couple them together for simultaneously longitudinal movements. It is then necessary to operate the stop 94 to permit sliding movement of the shaft 83 with the shaft 37. The reason for coupling the shafts in this manner is for imparting to the wire or thread, a sharp reverse movement at each end of a layer to prevent the wire from piling up, as will be more fully hereinafter explained.

Another arm 90 of the carriage 91 is rotatably mounted upon the shaft 83, and the shaft 83 is also rotatably mounted in a bearing 97 (Figs. 1, 13 and 1 1) arranged adjacent to the last named arm 90 and sup-- ported from the frame base. The frame 91 on one end, such as at the right in Figure 1. is provided with a dovetail guide or traclr 98 (Figs. 1. 2 and 3) which extends in a direction from front to rear of the machine and a block 99 is slidably mounted and confined to the track 98 by reason of a guide groove which is complemental to and attached to the track 98. A threaded rod 100 extends lengthwise of the track 98, and is rotatably carried thereby above its upper face with a threaded engagement with the block 99, so that when the rod 100 is retated, such as by an operating button 101, the block 99 will be adjusted along the track 98. A hearing sleeve 102 (Figs. 1 and 3) is connected by a. pivot 103 to one side of the block 99, so as to be adjusted from front to rear when the block 99 is adjusted along the track. At the same time the sleeve 102 is free to oscillate about the pin 103, which extends transversely of the direction of movement of the block 99.

A rod 104 is slidable through the sleeve 102 and extends in both directions therefrom. At one end it is pivotally connected, by a pin 105, to a split nut 100 which has threaded engagement with a threaded section of the shaft 83 extending to the right (see Fig, 1) from the frame 911 Thus, when the shaft 83 is rotated the split nut 106 will he held against rotation there'- with by reason of its connection with the rod and will be caused to move longitudinally along the shaft 83 in a direction depending upon the direction of rotation of the shaft 83. The rod 104- will slide in the sleeve 102 to compensate for the movement of the split nut 106 in a straight line instead of an arcuate line. The movement of the split nut 106 will therefore oscillate the rod 10 1- about the pin. 10%. By adjusting the block 99 from front to rear or vice versa, the lever arm between the sleeve 102 and the split nut may be varied, which will vary the arc of oscillation of the end of the rod 10% which is upon the opposite side of the sleeve 102 from the nut 100.

The pivoted frame 91, at its forward edge, is provided with upstanding ears 10'? (Figs. 1, 2 and 3) that serve as bearings for a rod 108 which extends in a direction parallel with the shaft 103 but along the forward edge of the machine. The rod 109, at one end. is pivotally connected by a pin 109 to a sleeve 110 (Figs. 1 and 3), through which the free end of the rod 10% passes and slides. Thus, as the rod 104- is oscillated by the nut 106, the rod 108 will be reciprocated in the bearings 107 of the frame 91. The sliding of the sleeve 110 upon the rod 10% will compensate for the arcuate movement of the rod 104. The rod 108, between the bearings 10?. is provided with spaced suit" able wire guides 111 by means of which the wires or threads to he wound into coils are guided to the tubular form carried by the winding spindle 5241-. The guides, as illustrated, are provided with grooved pulles which guide the wires or threads to tie tubular form on the spindle and at the same time serve to feed the wire or thread pro ,qressively in directions from end to end of the winding spindle with the reciprocations of the rod 108 upon which they are carried. The wires or threads may conducted t the guides 111 from any suitable source, which is not shown in order to simplify the disclosure. Thus, when the winding spindle 2&1 is rotated from the shaft f1, the tuhular form will be rotated and the wire will be guided in layers thereon by the guides 111.

The rotation of the shaft -1- will he transmitted through the shaft 9 to the bevel gears 10 and 40, and by reason the connection between the cam and the clutch lever 52, one of the bevel gears or to will always be clutched to the shaft 3'? so as to rotate it in a direction dependent upon the position of the cam 15. Assi'iming that the shafts 37 and 83 are not coup-led for cci'iconiitant, sliding or longitudinal movement, the shaft 83 will merely be rotated y the shaft 3 in opposite directions depending upon the position of the cam 15. As the shaft 83 is ro-= tated, the nut 100 will be fed along the same, and the pin 105 which serves as a connection between the nut and the rod 104% extends between the nuts 81 which are pro= vided upon the threaded rod 179, so that when the nut 100 has been moved far enough to carry the pin 105 into engagement with one of the nuts 81, the plate will he shift ed endwise, and by reason of its connection to the rod 73 will rotate the crank arm. 71.

The crank arm, by reason of its connected pinion 09, will operate the rod 06 in an end-= wise direction and carry the pawl 05 trans= versely across the peripheral surface of the cam 15 so as to move train beneath one oil the lugs 63 or 64 and release the cam 15.

The cam will then be driven, by friction,

' into the under face shown in Fi with the shaft 9 until the other lug 63 or 64, which is offset from the released lug, engages with the end of the pawl" 65, Whereupon the movement of the cam will be checked, the friction drive ofthe cam permitting continued rotation of the shaft 9. Durin this half revolution of the cam 15, the f0 lower pin 59 will be shifted toward or from the shaft 9, which will cause a movement of the rod 56, and through it-a portion of the clutch lever 52, to reverse the directionof rotation of the shaft 37. When the rotation of the shaft 37 is effected, the

shaft 83 will also have its rotation reversed,

and the nut 106 will be fed in an opposite direction. During this opposite movement the rod 108 will be shifted in a direction opposite to its prior movement and guide the Wire or thread in a new layer being progressively formed in the opposite direction. When the pin engages with the other nut 81, the plate 75 will be operated in the reverse direction so as to shift the rod 73, crankarm 71, and rod 66 in opposite directions from those in which they were previously moved, and the movement of the rod 66 will carry the pawl 65 from beneath the lug 63 or 64 with" which it engages, so as to release the cam 15, whereupon the latter will again rotate through a half revolution until the lug opposite from that last released is stopped by its engagement with the pawl 65.. During this half revolution of the cam 15, a reverse operation of the clutch lever 52 will be effected, and the movement of nut 106, and through it movement of the rod 108, will be reversed.

A shaft 112, (Figs. 1, 7 and 8) is mounted in the swinging frame. 91, in proximity and parallel to, but spaced from, the shaft 83;and upon one end carries a gear 113- which meshes with, and is driven by, the gear 88 fixed upon the shaft 83. The shaft 112, atits opposite end, is provided with a pinion 114 which meshes with and drives a gear 115. The gear 115 is fixed upon a shaft 116, also rotatably mounted in theframe 91 so as to extend parallel with the shaft 112. The shaft 116 also carries a' bevel gear 117, which meshes with and drives a bevel gear 118. The bevel gear 118 is rotatablymounted upon a vertically extending shaft 119, also rotatably mounted upon the frame 9.1, by means of a bearing 120. The shaft 119 is provided with a collar 121, fixed thereon and abutting against the upper end of the, bearing 120 Fig. 7),.

122 interposed between them and recessed I of the bevel gear 118 as gure A collar 123 is fixed to the shaft 119 at its upper end, and compresses a helical I and the gear 118 abuts against the collar 121 with a friction washer a washer 125 which abuts against the upper face of the bevel gear 118, with a friction disc 126 interposed between the washer-and gear, also as shown in Figure 7". jThe'spring 124 serves to frictionally couple the gear 118 to the shaft 119 through the application of friction to both faces of the gear.

The lower end of the shaft 119 is provided with a collar 127 carrying crank arms 128 and 129 extending in opposite directions laterally therefrom. The arm 128 is connected by a pivot pin 130 to a connectingrod 131, which is in turn pivotally connected to a pin 132 which depends from the lower face of a carriage A pin 129 'depending from the swinging frame 91 is disposed within the path of a pin 129 on the arm 129v so as tolimit the rot-ationiof the shaft 119 to approximately 360".

The carriage 133 (see Figs. 7, 8, 13 and 14 particularly) is mounted for sliding movement upon the lower part of a guide bar 134, which is carried by the frame 91 so as to extend in a direction from front to rear thereof. As shown particularly in *Figure 13. the guide -bar 134 has flanges 135 on opposite sides along its lower edges, which are embraced by overhanging flanges of the carriage 133. When the shaft 119 is rotated, this rotation will be translated into reciprocating movement of the'carriage 133 in a direction from front to rear of the machine.- The guide bar 134 is also provided along its upper side edges with flanges 136 which mount and guide a second or upper carriage 137 in'a direction from front to rear of the machine. This upper carriage 137 is clearly shown in Figures 7 8 and 10 to 14.

Arms 138 (Fig. 13) depend from the sides of the upper carriage 137 and rotatably mount a shaft 139 which extends transversel v of the direction of sliding movement. of v,

fixed arms 140 which extend upwardly to approximately the upper-level of the upper carriage 137 then outwardly and then upwardly to form bearing ears 141. A plate 142 (Figs. 1, 7. 8, and 10 to 12) extends between and is pivoted in the ears 141. The plate 142 is provided at its ends with for- 'wardly extending ears 143 (Figs. 1 and 13) between which a paper feeding roller 144 extends and is rotatably mounted. A spring .145 is connected between each of the-arms 140 and the plate, so as to yieldingly stress the plate 142 in a direction to carry the roller 144 towards a plate or table 146 prov ided upon the upper face of'the upper carf me e. no end of the roller 144 is provided with teeth 147 (see Fig. 1). and asp'ring -pawl 1 148 is secured to the plate 142 with its free standing abutment -when the roller is carried rearwardly upon the plate 146. Vhen the arms 1.40 are swung forwardly the roller 1 14 will be carried "forwardly, and the pawl 148 will prevent rota tion of the roller. The roller being pressed against the plate will frictionally engage with a continuous sheet of paper 149. which is conducted from a suitable supply roll over a guard 91*, beneath a guide bar 150, and between the roller 14-4 and the plate 116. The roller 144, in moving forwardly. frictionally grips the paper and carries it forp y the hearings 138, by a collar 166 which is wardlv over the surface of the plate 146.

A thin strip 151 extends parallel with the roller 14% and beneath the same, and at its ends is provided with upturned ears 152 (Figs. 1 and 13) which are slotted from their free ends so as to slidaloly embrace the pivots of the roller 1 14. The strip 151 rests and slides upon the upper surface of the plate 116, and the paper strip 119 is passed between the strip and the roll so as to be gripped between them by the pressure of the spring 1 15 (Figs. 10 to 12). 'lhetrictional resistance to forward movement of the paper will be entirely that existing between the strip 151 and the plate 146. There will therefore he no tendency "for the paper strip to stick at any one point and thus cause it to feed more at one edge than the other.

Referring again particularly to Figures 13 and 1-1; the shaft 139, which is suspended from the upper carriage 137, is provided with an arm 153 which is fixed thereon, and a link 15 1- is pivoted at 155 to the free end of the arm 153, so as to depend freely there from. At its lower end, the link 15% is provided with a transversely extending pin 155, which is within the path of an up- 156 provided upon the upper face of the frame base 1. The lower carriage is provided, upon the side edge at which the link 1541s disposed, with an operating pin 157 (see Fig. 11 particularly) which moves with the lower carriage and is adapted, as it moves forwardly, to engage against pin 158 which extends rearwardly from the hill r15 1 midway or its ends. The pin 158 is adjustable through the link 154: so as to project to variable extents therefrom and thus vary the point in the travel of the lower carriage at which the pin 157 thereof engages with the pin 158.

A three armed crank 159 (Figs. 7, 8 and 10 to 1 1) is rotatahly mounted upon the shaft 139, upon the side of the carriage opposits from the depending-link 15 1-, and one arm 160 of this crank depends below the shaft 139 and carries a. transversely extendring pin 181. An inclined earn 1% is carried by the trance base 1 within the path of this pin 161 as it moves rearwardly with the lower carriage so that the pin 151 will, at a particular point in its travel, he engaged with,.and cammed upwardly by, the inclined cam 162, for a purpose which will be hereinafter explained.

Another arm 163 of the crank 159 (see Figs. 10 to 1 1) extends upwardly along one side of the up .er carriage 137, and carries a pin 164i extent ing towards the carriage. 1 pin 165 is provided upon the adjacent side of the upper carriage 137, and within the path of the pin 16% of the crank 159 (see Fig. 13) for limiting: the rotation of the crank in one direction. The three arm crank 159 is confined upon the shaft 139, and against one of fixed on the shaft.

The arm 163 of the three arm crank is also provided with another pin 187 extending laterally towards the lower carriage 133 and within the path of a threaded rod 168 which is carried by the lower carriage. T he rod 168 is slidahly mounted for longitudinal movement in a hearing lug 1-89 at one side of the lower carriage (see 11 particularly), and a helical spring 170 surrounds the rod and is compressed between a pair of nuts 171 thereon and the hearing 11155189,

so as to normally stress the rod 168 in a direction forwardly of the machine. The rod, at its rear end, is provided with a head 172 which limits its forward movement under the action of the spring 1'70. 'i/Vhen the lower carriage 133 is moved forwardly by the link 131, the rod 188 will engage with the pin 16? of the three crank 159 and rotate it forwardly (see Figs. 13 and 11) so as to carry the pin 161 of the crank against the pin 185 of the upper carriage. Continued forward movement or the lo er carriage will then move the upper carriage with the lower carriage, because the short mounting the three arm cranl: is carried by the upper carriage and one arm the crank is pressed against the pin 185 the upper carriage.

The lower carriage is also provided, helow the bearing his 159, with a halt round pin 173 (Figs. 11) to 12} with the plane Q'lace i the pin vertical and facing rearwardly or" the machine. A third arm 174 of the crank lever 159 extends rearwardlv of the shaft 139 and carries, upon its free end, a half round ipin 175 with its plane face vertical and facing forwardly of the machine. A tension spring 176 (see Figs. 10 to 12; acts hetween a pin 177 on the upper carriage'nnd the vertical arm 183 oi the crank 159. so as to stress the latter in direction to carry the pin 161 of the arm 160 against the inclined cam 1652. This movement however, is limited by the engagement of the pin 164 of the crank with the pin 165 on the side of the upper carriage (see Fig. 13), and in this limited position the pin 175 will be about half way within the path of the pin 173' of the lower carriage (see Fig. 12).

During the forward travel of the lower carriage, and before the-rod 168 engages with the pin 167 of the three arm crank, the pin 173 of the lower carriage will engage with the pin 175' (curved surface against curved, surface) and cam the crank arm 174 downwardly sufficiently to pass the same and continue in its forward movement.-

During the-rearward travel of the lower carriage, however, shortly after the three arm crank is released by the rod 168, the

end with parallel bearings 176 and 177 (see.

Figs. 1 and 10 to 12) in which shafts 178 and 179 are rotatably mounted respectively.

A crank arm 180 is fixed upon each end ofboth shafts, and the free ends of the crank arms at each side of the carriage are connectedloy links 181 and 182. 3 The links 181 and182 are pivotally connected to the crank arms 180, so that the shafts 178 and 179 have a corresponding rotation, the links 181 and 182 with th crank'a'rms acting somewhat like parall e'llink mechanism. A bell crank 183 is pivotally mounted upon an arm 90 of the swinging frame 91 .(see Figs. 1 and 12'particularly), and. one arm of this bell crank is provided with a transversely extendin rpin 184 which rides upon a rail 185 which is provided upon the link 182. The

other arm of the bell crank 183 is provided with a pin 186 which, in one angular position of the crank, lies withinthe path of a rod 187 which is threaded through a lug 188 on the lower carriage 133.

When the lower carriage moves rearwardly. to approximately the limit of its movement in that direction, the rod 187 will engage with the pin 186 of the'bell'crank, 183

and rock the latter and cause its-pin 184 to depress the link 182 and produce concomitant rotation of the shafts 178 and 179. Arms 189 are fixed in spaced relation upon the shaft 179, extend upwardly and for- Wardly over the upper carriage, and carry at their forward end a knife 190, which, when the shaft 179 is rotated at the last part ofthe rearward movement of the carriage, will descend between the roller 191 and the forward edge of the plate 146 of the upper ,arms 189. These fingers. extend forwardly and between the roller 144 and the strip 151, the roller having annular grooves (see Fig.

l) to clear the fin ers. The fingers also hold the paper su'pp y strip flat against the plate 146 ready to be fed forwardly beneath roller 200.

An arm 193 (Figs. 1 and 14) is fixed upon and depends from the shaft 179, and a tension spring 194 is-connected between the lower end of the arm. 193 and a pin 195 carricd by one of the arms 140 of the paper feed mechanismj Thisspring tends to resiliently hold the knife'carrying arms in their upper position with the knife above .thepaper, 'whichis a position shown in Figures 10 and-11, and also to yieldingly hold arms 140, and through them the roller 144 in its extreme rearward position relatively to the upper carriage. I

The cutting edge of the knife 190 is angular (Figs. 1 and 13), with the two portions diverging upwardly from acentral piercing point 196, and the knife blade is slotted, as at 197, from each end to approximately the center so that the wings thereof may yieldingly press'closely against the forward edge of the plate 146 (see Fig. 12) and effect a clean shearing or cutting of the paper.

The swinging frame 91, at the forward corners, is provided with upstanding ears 198 (see Figs. 1 and 10 to 12) having elongated inclined slots 199 therein. A paper gripping and feed roller 200 extends between the ears 198 and through the slots 199 so as to rotate therein and also move vertically in the said inclined slots. Arms 201 (Figs. 2,3, 7 and 8) are rotatably and dependingly carriedby'the shaft of the roller 200 on the ends thereof and between the ears 198. Each arm 201 is provided at its lower end with an angular extension 202 (see particularly Figs. 2' and 14) which a proach one another, but do not meet. A plate 203 is pivotally mounted, by pins 204, between the arms 201 and ears 205 on the angular extensions of the arms 201. as shown particularly in Figure 14. The plate 203 is U-shaped, and the arms 206 thereof, extend along the outer sides of and embrace the frame 91, and at their ends are pivotally connected thereto by pins 207. hen the plate 203 is elevated or lowered by swinging it about the pins-207, it will elevate or lower the arms 201 and through them the roller 200, to an extent permltted by the face as at 215 for a purpose to be plate elongated slots 199 of the ears 198 of the frame A plate 208 (Figs. 2, 7, 8 and 10 to 1 1) is secured to the under face of the lower carrings and carries a rail 209 which is pivoted thereto by a pin 210, so that the rail 209 can swing vertically away from the plate 208. The rail 209 rests upon the plate 208, which prevents downward swinging movement of the rail beyond the normal position shown in Figures 10 to 13. The plate'203 is bowed upwardly at its central portion, as designated by the reference 211, so as to clear the plate 208 and rail 209 as the latter move i ld, with the carriages. The plate 203 is also provided with a. rearwardly extending mm 212 (see Fig. 1 1 particularly) which carries a pin 213 adapted to ride either upon or beneath the rail 209, and act as a cam f'llo'wer for the rail 2.09 which serves as a cam.

The forward end of the rail'209 is beveled upon its upper face as at 214C, and at its opposite end is beveled upon the lower explained hereinafter. A helical tension spring 216 is connected between the pin 132 on the lower carriage 133 and a pin 217 which depends from the forward end of the cam rail 209. The spring 216 is normally under tension and yieldingly holds the cam rail 209 in its lower position a 'ainstthe plate 208.

A pair of arms 218 l ig's. 1, 2 and 3) ex tend forwardly from the swinging frame 91, and at the forward end extend upwardly in a vertical direction. Theforward vertical ends are connected by aplate 219 carrying adjacent its ends, two lugs 220, and centrally of its ends a threaded pin 221 (Figs. 1 and 2). Acam plate 222 is provided with an elongated slot 223 through which the pin 221 may be passed, so as to mount the cam plate upon the connecting plate 219. A not 224 is provided upon the outer end of the pin 221 so as to clamp the cam plate 222 against the connecting plate 219 in different angular positions about the pin. The lugs 220 are provided with screws 225 (see Fig. 2) which extend transversely therethrough within the plane of the cam plate 222, the cam plate having lateral extensions against which the ends ofthe threaded rods 225 are adapted to abut when they are threaded through the lugs sufiiciently. By adjusting the screws 225 to relatively ditferent extents through the lugs 220, the cam 222 can be shifted about the .pin 221 into different angular positions, so as to present the lower edge thereof in different angularly inclined positions.

The frame base 1, along its forward edge, is provided with pairs of rollers 226 which are adapted to mount a rod. 227 for reciprocation along the forward edge of the frame base. The rod 227 is provided with :1 lateral extension 228 which, carries a peripherally grooved roller 229 beneath the lower edge of the cam plate 222. The swinging frame 91 is supported in the position shown in the drawings by the engagement of the cam plate upon the roller 229. When the rod 227 is shifted endwise, the roller 229 will elevate or lower the pivoted frame to an extent depending upon its endwise movement and also upon the angle of inclination of the lower edge of the cam plate. By adjusting the angular inclination of the cam plate, the extent of elevation of the pivoted frame for any selected movement of the rod 227 may be varied. The cam plate 222 runs in the groove of the pulley which holds the rod 228 against rotation.

The lateral extension 228 of the rod 227 is provided upon opposite faces with ratchet teeth 230 and 231 (see Figs. 1 and 2). l holding pawl 232 is pivoted at 233 to the frame base, and has a nose 234 adapted to engage with the ratchet teeth 231 and prevent endwise movement of the rod 227 in one direction.

A plate 235 (see Figs. 1 and 3) is secured upon the upper face of the frame base 1,

beneath the pivoted frame 91, and is provided with an elongated slot 236 extending in a direction from front to rear of the machine. A screw or bolt 237 extends through the elongated slot 236 and has a non-circular head 238 slidable in a groove 239 in the under face of the plate 235, so that the screw may slide in a direction from front to rear of the machine and be held against rotation. A lever 2 10 is provided intermediate of its ends with a longitudinally elongated slot 241 through which the in 237 passes when the link is placed upon the plate 235. A sleeve 242 is disposed over the pin 237 and within the slot 241 of the lever 210, and a nut 243 is threaded upon the upwardly projecting end of the pin 237 so as to prevent removal of the lever 240 from the pin. lf desired, a washer 244 may be introduced between the nut and the sleeve 242. The length of the sleeve 212 is such that the nut can never clamp the lever 240 tightly, but will prevent its removal from the pin 237 while permitting sliding and oscillatory movement of the lever upon the pin.

The lever 240 is pivotally connected, by a pin 245 (see Fig. 1), to the connecting link or rod 73, so that when the latter is operated to effect an operation of the clutch lever 52 through the release of the cam 15, the lever 210 will be rocked about the pin 237. At its forward end, the lever 240 is provided with apawl 246 which is pivotally connected thereto, as at 247, and the pawl is provided witha nose 248 which is adapted .to- -"engage with the ratchet teeth 230 and 246 so as to yieldingly hold them in engagement with the ratchet teeth 230 and 231.

Pins 250 and 251 are provided upon the pawl levers 232 and 246, respectively, at the ends which are on the opposite sides of their pivots from the nose ends, so that when it is desired to release both of the pawls it is merely necessary to press the pins 250 and 251 toward one another and carry the nose ends of the pawls out of engagement with the ratchet teeth 230 and 231. Thereupon the rod 227 may be shifted in a direction opposite from that imparted thereto by the operation of the lever 240. This direction will be to the ri ht in Figure 1, and will be limited by an a justable stop screw 252, carried by a suitable bracket 253 on the frame base 1. If the throw of the pawl 246 for each oscillation of the lever 240 is to be varied, the nut 243 on the bolt237 may be loosened, and the latter shifted along the slot 236 to provide the necessary proportions between the arms of the lever 240 on each side of the pivot, whereupon the nut 243 may be tightened to clamp the bolt 237 firmly to the plate 235 and hold it in adjusted position.

A11 apron plate 254 (Figs. 10 to '12) is secured to the forward face of the pivoted frame 91 by cap screws 255, which pass through vertically elongated apertures 256 in the apron plate and are threaded into the frame 91, so as to clamp the apron plate to the frame and permit of its vertical adjustment thereon. The apron plate is provided with a head 257 which serves as a table or apron over which the paper isfed to the coils. A roller 258 (Figs. 7, 8 and 10 to 12) extends between and is rotatably mounted in the upright arms 198, with its lower edge adjacent to, but slightly above, the upper surface of the apron 257 for the purpose of guiding the paper from the car-' riage over upon the head of the apron plate.

The arms 218 which extend forwardly from the swinging frame 91 (see Fig. 7) are provided with sleeves 259 which are closed at their upper ends by screw plugs 260. The sleeves are open at their lower ends with their apertures aligned with apertures in the arms 218. A coil spring 261 .is disposed in each sleeve 259 so as to extend through the bottom thereofand the corresponding arm 218, and press upon the plate 203 (see Figs. 7 and 14). The springs 261, by pressing downwardly upon the plate 203, serve to depress the arms 201 and carry the roller 200 downwardly into engagement with the upper face of the head 257 of the apron plate 254. The springs 261 serve to equalize the pressure of the feeding roller 200 upon the apron plate. The swinging frame 91 is provided with an adjustable stop 262 within the path of the upper carriage 137 (seeFigs. 2, 7, 8 and 10 to 12) for limiting its forward travel.

The swinging frame 91 is provided at opposite sides with cam plates 263 (see Figs. 1, 3 and 13) each with an arcuate upper cam surface 264. The cam plates 263 are secured to lugs on the frame 91 by screws 265 .which pass through vertically elongated slots 266 in the 0am plates, an clamp them in different vertically adjusted positions. The arms of a bail 268 extend along the two sides of the frame 91 and are pivoted upon the shaft 17 9, so as to be free to move vertically upon the shaft independently of the movement of the knife-carrying arm 1 89. The bail, extendsforwardly beyond the knife 190 and, the cross arm thereof is adapted to drop forwardly and below the roller 191 (see Figs. 7, 8 and 10 to 12), so as to rest upon the frame 91 and slide there on forwardly beneath the roller 258 and the head 257 of the apron plate into the p0- sition shown in Figure 8 when the upper carriage completes its forward travel. The bail adjacent its pivotal connection to the shaft 179 at each side, is provided with runners 269 (see Figs. land 3) which are adapted to engage -with the arcuate cam sur aces 264 of the cam plates 263, when the upper carriage has traveled rearwardly for a short distance, and be cammed upwardly thereby to an extent depending upon the 100 extent of rearward travel of the upper carriage.

Referring particularly to Figs. 1 and 3, a pair of arms 270 are secured to the upper face of the frame base 1 so as to extend 105 forwardly over the rollers 226. A baillike frame 271 has its arms pivotally connected, by pivot pins 272, to the upper ends ofthe arms 270. The frame extends rearwardly and mounts a roller 273 extending 11o the upperface of the cross arm of the bail-like frame 271. A helical spring 278 is attached to the shank 275 of the eyelet hook and passes downwardl through the frame base 1 (see Fig. 3) w ere'it is connected to a vertically operating lever (not shown), which controls the operation of the machine. The spring 278 is normally under some tension so as to pull the frame 271 downwardly and yieldingly hold the roller 273 in contact with the surface of the tubular form upon which the coils are wound or upon the successive layers of wire.

manners When the lever (not shown) is operated to render the machine active, additional tension is supplied to the spring 278, so as to exert'considerable pressure through the roller 27 3 upon the coil being Wound, and iron out the same and prevent the formation of wrinkles or loosening of the wires and paper when being wound. When the lever is elevated to stop the machine, the tension of the spring 278 is released somewhat, so that the operator may be able, without considerable exertion, to unhook the eye-hook from the frame 271 and enable the latter to be swung upwardly and forwardly out of contact with the coils. This movement of the frame 271is necessary when a form with the wound coils thereon is to be removed from the s indie and a new form placed thereon. A ter the new form has been placed on the winding spindle, the frame 271 is swung rearwardly and downwardly to carry the roller 273 into engagement with the tubular form on the winding spindle, after which the eye-hook is attached to the frame for exerting the desired pressure thereon.

The shaft of the roller 200, immediately adjacent the attachment thereto of one of the arms 201 (see Figure 2), is provided with longitudinally extending ratchet teeth 280, and a spring pawl 281 is secured by screws 282 to the adjacent arm 201 so as to cooperate with the ratchet teeth 280 and permit rotation of the roller 200 only in a direction in which it feeds the paper toward the winding spindle 24:. The roller shaft 200 extends beyond the bearings 198, and has a universal connection 283 to a small shaft 284: (see Figures 1 and 4-) which is rotatably carried by a lever 285. The lever 285 is pivotally mounted at 286 upon a suitable hearing bracket 287 carried by the bearing 5. A roller 288 is fixed upon the shaft 28% for rotation therewith and is adapted to be carried into frictional driving engagement with an annular groove 289 in the periphery of the driving pulley 3 when the lever 285 is rotated in one direction.

A link 290 is pivotally connected at 291 to the lower end of the lever 285 for oscillating it. The link 290 at its other end is forked with the arms 292 thereof partially embracing the shaft 37 and running in an annular groove 293 of the sleeve 294. The sleeve 294 is mounted upon the clutch element- 44: (see Fig. '5) and is clamped against a shoulder 295 thereof by a pair of adjustable nuts 296, which are threaded upon a reduced extension 297 of the clutch element, with a friction washer 298 between them and. the sleeve 294. The sleeve 294 will thus be frictionally driven with the clutch element 44:, and will slip when suflicient retarding force is applied thereto. A pair of pins 299 are provided in the bottom of the annular groove 293, at nearly but not exactly diametrically opposite points thereto, as shown particularly in Figure 4. These pins will be car: ried against the ends of the arms 292 of the link 290 alternately when the rotation of the shaft 37 is reversed. When one of the pins 299 is against the arm 292.1he other will be spaced by a small annular distance therefrom.

Assuming the parts to be in the position shown in Figure 4;, if a reversal of the direction of rotation of the shaft 37 occurs, the lower in 299 will be carried away from the lower arm 292 of the link 290, and a spring 300 which is connected between the clutch lever 52 and the link 290 (as shown in Figures 1 and 1), will pull the link 290 further towards the shaft 37 and roclr the lever 285 sufficiently to carry the roller 288 into driving engagement with the main driving pulley 3. Almost immediately thereafter, however, the upper pin 299 will engage with the end of the upper arm 292 and carry the link 290 in a direction away from the shaft 37 and rock the lever 285 in adirection to carry its roller 288 out of driving engagement with the main driving pulley 3.

iii)

Thus, at each reversal in. the direction of I rotation of the shaft 37, the pulley 288 will, for a short instant only, be in driving engagement with the main driving pulley 3.

During this short interval of driving relationshi between the pulleys 288 and 3, the roller s iaft 200 will be rotated in a direction to carry a cut section of the paper into food mg relationship with the coil being wound. This; feeding movement of the roller 200 is suiliclent only to engage the forward edge of the paper beneath the wire being wound upon the. rotating form, and thereafter the pinching of the paper between the layers of lid) wire is sufficient to cause the section of paper to be drawn around the form and form a foundation for the new layer of wire.

A block 301 (Fig. 1) of wood or other friction material extends slidahly through an aperture in the upper carriage 137 and rides upon the upper face of the guide 134: (Fig. 13) of the carriage. A U-shaped spring clamp 302 is secured to the upper carriage so as to extend over the block 301 and press it yieldingly against the guide 134-. This creates friction between the upper carriage and its guide sufficient to hold the upper carriage against displacement from the positions in which it may be disconnected by the lower carriage.

Operation.

iii?

)in 30 from engagement with the spindle 24.

he bearing block 29 is then swung forwardly so as to permit the spindle 24 to be withdrawn from chucking engagement with the shaft 4:. A tubular form 27 is then placed upon the spindle and the spindle is rechuclred in the shaft 4. If desired, the form may be slid upon the spindle without removing the latter from the driving shaft. The block 29 is then swung rearwardly until the bearing pin 30 becomes aligned with the spindle M and the dowel pin 31 on the hearing block becomes aligned with the recess 32 in the small frame 28. Thereupon the block 29 will be pressed forwardly by the spring 29*, which inserts the bearing pin into the end of the spindle 24:. lVhen this occurs, the

spring 36, (see Fig. 3) becomes active and carries the arm 35 against the block 29 and looks it in that position.

Several strings of wire are brought from spindles or bobbins over guides 111 and attached to the tubular form which has just been placed upon the windin A continuous sheet of paper is brought from the rear of the machine over the guiding bracket 91, as shown particularly in Fig. 7, beneath the bar 150 and the spring fingers 140, and between the roller 144 and the U- shaped strip 151 which slides over the plate 146. The paper is then carried forwardly beneath the wire 1.92 and the roller 191. The pawls 232 and 246 are then operated to release the rod 227, which is then shifted to the right (see Fig. 1) as far as permitted by the adjustable stop 252. It is assumed that the rod 108 carrying the guides 111 is at one end of its reciprocation, ready to start the layer, and that the clutch lever 52 has just been-operated to reverse the direction of rotation of the shaft 37.

The machine is then started by operating the suitable lever (not shown) which is disposed underneath the frame base 1, whereupon the belt 2 will drive the pulley 3 and thereby rotate the shaft 4 and the wind-. ing spindle. During this rotation the wire will be drawn from the bobbins over the guides and wound around the tubular form (in the winding spindle. While this is taking place, the shaft at acts through the worm screw 7 and worm wheel 8 to drive the shaft 9, and through it the shaft 37. The shaft 37 is coupled to the shaft 83, and the threaded portion of the shaft 83 will shift the split nut 106 longitudinally thereof. This movement of the split nut 106 will rock the rod 104 and thereby shift endwise, the rod 108 which is connected thereto. As the rod 108 moves endwise, the guides 111 for the wires will be progressively moved along the winding spindle 24, and the wires will be guided progressively to form uniform layers upon the tubular form. This will continue until the pin 105 on the nut 106-reaches one spindle 24:.

of the nuts 81 and through it shifts the rod 79 and its attached plate 75 sufii'ciently to rotate the crank arm 71.

The. crank arm 71, in rotating, will move the rod 66 endwise and carry its pawl out of engagement with one of the lugs on the periphery of the cam 15 and into the path of the other lug. Immediately the cam- 15 will rotate with the shaft 9 owing to its frictional connection therewith, and in doing so the rod 56 will be shifted in one direction or the other so as to operate the clutch lever and effect an endwise movement of the shaft 37. This endwise movement serves to declutch one of the clutch elements 39 or 44 from its co-operating bevel gear, and effect a clutching engagement between the other clutch element and its co-operating bevel gear. This effects a reversal of the direction of rotation of the shaft- 37. The shaft 83 will also have'its direction of rotation reversed because of its coupling with the path 37, and consequently the nut 106 will be progressively moved in the opposite direction.

During the formation of the first layer, which preceded the last mentioned reversal of the shaft 37, the shaft 83 will drive the shaft 112 and through it the shaft 116. The bevel gear 117 carried by the shaft 116 will rotate thebevel gear 118. The gear 118 will frictionally drive the shaft 119 and carry the pin 129" away from the pin 129. The crank arm 128 which is carried by the shaft 119, during its first half ofa revolution, will operate the link 131, and through it drive the lower carriage forwardly. During its second half of a revolution the crank arm 128 will drive the lower carriage rear Wardly. While the lower carriage is moving forwardly, the pin 173 thereof (Figures 7, 8, and 10 to 12) will engage with, and cam itself past, the half round pin 175 which is provided upon the three-arm crank 159 that is rotatably carried by the upper carriage 137. The spring 176 permits rotation of the three-arm crank sufliciently to allow the pin 173 to pass, and then returns the crank to its normal position (shown in Figure 8). with its pin 164 engaging with the pin 165 on the side of the carriage.

During a further increment of forwardmovement of the lower carriage 133, thelrod 168 carried thereby will engage with the pin 167 and push it forwardly. Since the three-arm crank is carried by the upper carriage 137, and the pin 161 thereof abuts against a pin 165 on the upper carriage at one side of the axis of rotation of the crank (see Figure 13), the three-arm crank will act as an abutment, and the upper carriage will be carried forwardly with the lower earriage. During theforward movement of the carriages, the pin 155 on the depending link 154 (see Figure 13) will engage against the abutment 156 on the frame base 1, and will be swung rearwardly about the pin 155. During further movement in the same direction the pin 157v on the lower carriage will engage with the adjustable pin 153. and since the lower end of the link has already 'been stopped by the abutment 156, further movement of the lower carriage will cause a rotation of the crank arm 154 which is fixed upon the shaft 139.

Inasmuch as the crank arms 140 are also fixed upon the shaft 139, the arms 140 will be carried forwardly, and in doing so will move the roller 144 and the U-shaped strip 151 forwardly over the plate 146 of the upper carriage, and carry forwardly the strip of paper 149 coming from the supply roll until the advance edge thereof passes over the roller 258 and beneath the roller 200. The springs 145 hold the roller 144 tightly against the U-shaped strip 151, and thus clamp the paper sufficiently to carry it forwardly with the roller-144. The spring pawl 148, by its engagement with the ratchet teeth 147 of the roller 144. prevents rotation of the roller 144 in a direction which would release the paper, so that the roller during this movement serves as a frictional gripping pad for tightly gripping and moving the strip of paper passing between it and the U-shaped strip 151.

During the forward movement of the upper carriage 137, the runners 269 of the bail 268 will ride down the arcuate cams 264 of the cam plates 263 and lower the forward cross arm of the bail below and forwardly of the plate 146 and the roller 258, until it rests upon the upper surface of the guide 134. The bail will then be carried forwardly by the upper carriage 137 into the space beneath the roller 258 and the head 257 of the apron plate 234, until it reaches the position shown in Figures 8 and 10.

During the last part of the forward travel of the upper carriage, the runners 269 (Figure 3) will move out of contact with the cam plates 261. Near the completion of the forward movement of the upper carriage, the paper strip 149 is fed beneath the roller 200 and thereupon the roller 200 will be dropped upon the head 257 of the apron plate so as to grip the forward edge of the paper strip and clamp it firmly to the apron plate.

In Figure 8, the upper carriage 137 has been shifted forwardly until it is stopped by the adjustable stop pin 262, and the lower carriage 133has not as yet entirely completed its forward movement. During this last increment of forward movement of the lower carriage, the rod 168 will be cammed rearwardly against the action of the sprin I 170, because the three-arm crank 159 carrie by the upper carriage cannot move further in a forward direction. At this time the pin 157 has engaged the adjustable pin 158 on the link 154 which has been carried into engagement with the abutment 156. As the lower carriage continues to move forwardly, the pin 157 thereof will operate the crank 154 and through it the arms 140 to carry the paper feed roller 144 forwardly and feed the paper beneath the other paper feeding roller 200. This last position is shown in Figure 10, with the roller 200 dropped into clamping engagement with the forwardly thrust paper strip.

The crank arm 128 then reverses the movement of the lower carriage and carries it rearwardly. During thefirst portion of the return movement of the lower carriage, the spring 170 (see Fig. 14) will hold the upper carriage 137 at its forward limit of movement, and the pin 157 on the lower carriage will recede from the link 154 and release the crank arm 153. The spring 195 will then become active, rotate the arms 140 rearwardly, and carry the roller 144 backwardly over the upper surface of the upper carriage. The roller during this movement will freely rotate, because the spring pawl 148 will snap over the ratchet teeth 147 of the roller.

During further rearward movement of the lower carriage, the fiat face of the pin 173 will engage with the fiat face of the pin 175 of the three-arm crank 159, and since the direction of pull upon the pin 175 will be in a line passing substantially through the axis of rotation of the crank 159, the crank 159 and the upper carriage by which it is supported, will be pulled rearwardly, as shown in Figure 11. When the pin 161- on the crank 159 engages with andrides up the inclined cam 162, the three-arm crank 159 will be rotated about the shaft 139 sufficiently to move the pin 175 thereof out of engagement with the pin 17,3 of the lower carriage, and thereafter the lower carriage will continue its rearward movement leaving the" upper carriage where it was disconnected by the disengagement of the pins 173 and 175.- The rotation of the crank 159 by the cam 162, therefore, serves to determine the time at which the carriages will be uncoupled. If the swinging frame 91 carrying the carriages 133 and 137 is elevated to an extent greater than that shown in Figures 7 and 8 for example, the carriages will travel rearwardly. for a greater distance together before the pin 161 will engage with and be operated by the inclined cam, and therefore the upper carriage will have made a greater rearward travel. Advantage is taken of this fact for measuring the lengths of paper to be cut off as will be more clearly hereinafter explained.

Then the carriages 133 and 137 have both reached the limit of their. forward movement, as shown in Figure 10, the follower 213 carried by the plate 203 (see Figures 7, 8, 10 to 12 and 14) willhave passed beyond the inner end of the cam rail 209 so as to permit downward movement of the plate 203 by the action of the springs 261 which are under compression between the plate 203 and the arms 218 ofthe p -voted frame 91. The downward movement of the plate 203 about its pivots 207, pulls downwardly upon the arms 201 and carr es the roller 200 into gripping engagement with the forwardly thrust strip of paper. Immediately after the lower carriage 133 starts rearwardly, which will be prior to the rearward movement of the upper carriage as before explained, the follower pin 213 will engage with, and be cammed downwardly by, the beveled end 215 (see Fig. 8) at the rear end of the cam rail 209, and ride alon the lower edge of the cam rail. The cam rai therefore, serves to further depress the plate 203 and exert a greater downward pull upon the arms 201, which in turn transmit this downward pressure to the roller 200, now engaging and clamping the forward thrust strip of paper. The spring pawl 281 (see Figure 2), by

its engagement with the ratchet teeth 280 of the roller 200 will prevent rotation of the roller 200 under the rearward pull on the paper strip caused by the rearward movement of the upper carriage 137. The roller 200 therefore, during this part of the operation acts merely as a frictional clamp for gripping and holding the forward end of the paper strip. The cam rail 209 is capable of moving upwardly about its hinge pin 210,

which would release the pressure exerted by the roller 200 upon the forward end of the paper strip, except for the action of the spring 216 which is continually. under tension and yieldingly holds the cam rail 209 in its lower position and against the plate 08.

As the upper carriage moves rearwardly, the runners 269 of the measuring bail 268 will engage with the arcuate cam surfaces 264 of the cam plates 263 (see- Figure 3),

and during further rearward movement of the upper carriage the bail 268 will be cammed upwardly as the runners 269 there of ride up the arcuate cam surfaces. The cross arm of this bail 268 engages with the under face of the paper strip and carries it upwardly, as shown in Figure 11, so as to draw forwardly a greater portion of the paper strip. The further the upper carriage 13 travels in a rearward direction, the greater will be the upward movement of the bail 268 so as to draw forwardly a greater length of the paper strip.

After the upper carriage has been released or imcoupled from the lower carriage, further drawing of the paper strip will cease, and as the lower carriage conarm of the crank 183. The crank 183 will be rotated by continued rearward movement of the lower carriage,-and the pin 184 on its other arm which isriding upon the rail 185 of the upper carriage will depress this rail and the link 18 2.

The link 182 in moving downwardly, will rotate the crank arms .180 and 181 and through them the shaft 179 which carries the knife-bearing arms 189. The knife 190 will then be carried downwardly against the action of its spring 194 which is connected to the depending arm 193 of the shaft 179. The knife in descending will pass between the wire 192 and the roller 191, and will pierce and sever the paper strip at this point. This relative position of the parts is shown in Figure ,12. At this time the pin 129 on the arm. 129 which is driven by the shaft 119, will have'engaged with the stop pin 1.29 on the swinging frame .91, which holds it against further movement in the same direction.

The bevel gear 118 will continue to rotate by overcoming the friction between it and the friction discs or washers 122 and 126 (see Figure 7). The parts will remain in this condition until the layer of wire upon the tubular form has been completed and a reversal of the direction of rotation of the shaft 37 has been completed. Atthe instant of reversal of the shaft 37, one of the pins 299 which has been holding the link 290 (see Figure 4) forwardly against the action of the spring 300, will move away from thislink, and the spring 300 will quick- 1y move the link 290 rearwardly and rock the lever 285 so as to carry the roller 288 into contact with the groove 289 in the main driving pulley 3. The pulley 288 will be frictionally driven thereby and through its universal connection 283 will drive the roller 200 which has been holding the forwardly thrust strip of paper that is now severed from the main strip.

The rotation'of the roller 200 will be in a direction to carry the severed section of paper forwardly and thrust it beneath the wire being wound upon the tubular form.

This feeding movement will be only for an instant because the other pin 299 will engage with thelink 290 and cam lt'ffOlWmClly so as tocarry the pulley 288 out of driving relation with the. main driving pulley 3 and discontinue the rotation of the roller 200. This feeding movement of the roller 200, however, is suflicient to carry the paper forwardly until it 'is' caught between the tubular and the engage- D form and the wires bemg wound thereon,

ment between the wire and the form

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