US1104090A - Header. - Google Patents

Description

R. L. W ILCOX.

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APPLICATION FILED NOV.'29, 1913. 1,10%,0941, Patented July 21, 1914.

5 SHEETSSHEET 1.

I/VyE/vTO I MTNESSES M wwfli R. L. wiibx.

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APPLICATION FILED NOV. 29, 1913.

1,104,090. v Patented- July 21, 1914,

Mam/5535s INVENTOR fimhe MM xw d w R. L. WILGOX.

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APPLICATION FILED NOV. 29, 1913.

Patented July 21, 1914,

5 SHBETSSHEET 3.

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malt 6858 I VE/VTOR I 971-6 Z 1 0 NEY R. L. WILGOX.

, HEADER. APPLICATION FILED NOV. 29, 1913.

1 1 04,090, Patented July 21, 1914,

, 5 SHEETS-SHEET 4.

R. L. WILGOX.

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APPLICATION FILED NOV. 29, 1913.

,Patented July 21, 1914 5 SHEETS SHEBT 6.

MTNESSES, 12/ mm: TO K.

M x WW UNITED STATES PATENT OFFICE.

RICHARD LESTER WILCOX, OF WATERBURY, CONNECTICUT, ASSIGNOR TO THE WATERBURY FARREL FOUNDRY AND MACHINE COMPANY, OF WATERBURY.

I CONNECTICUT, A CORPORATION OF CONNECTICUT.

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Specification of Letters Iatent.

Patented July 21, 1914.

Application filed November 29, 1913. Serial No. 803,670.

- tam new and useful Im rovements in Headsatisfactorily and efliciently, with a mate-' rlally reduced number of more accessible parts than in the old types of headers, these said parts being of such design and structure as to be capable of replacement and substitution, with the minimum delay and inconvenience.

1 The mechanisms of'the header towhich particular attention has been paid in this invention are ;-First, the means for gripping the dies, which permit an adjustment 'thereof so that a variable pressure-1nay be applied at different points thereon. Secondly, the feed stop mechanism, which is located where the proper adjustments thereof can only be made with difliculty, but as constructed in my improved header the parts have been so arranged that all of the adjustments are made upon the outside of the machine where they are readily accessible. And lastly, means for applying a lubricant to the wire after it leaves the feed rolls and before it enters the dies.

The above are only a few of the many improvements in my header over and above those in the prior art, as will be apparent from the following description and the drawings, in which like numerals of reference designate like parts in the several figures.

Figure 1 is a fragmentary plan view of my improved header; Fig. 2 is a side elevation thereof with a portion of the fly wheel upon the near slde of the header removed;

Fig. 3 is a plan view of the die gripping mechanism with a portion of the bed in section upon line A-B of Fig. 2; Fig. 4 is a transverse sectional elevation of the same parts upon line CD of Fig. 3; Fig. 5 is a view of the feed roll and the adjacent mechanism, partly in section; Fig. 6 is a trans verse'sectional View thereof taken upon line EF of Fig. 1; Fig. 7 is a side view, partly in section, of the wire lubricatin device; Fig, 8 is a plan view thereof; Fig. 9 is a side elevation of a portion ofthe die gripping mechanism; Fig. 10 is a fragmentary plan View of a portion of the feed stop mechanism; Fig. 11 is an end view of some of the parts shown in Fig. 10; and Fig. 12 is a prospective view of one set of the dies.

In the drawings, the numeral 1 designates the bed of the machine, within which is rotatably mounted a crank shaft 2, having the fly wheels 33 thereon upon oppo site sides of the machine, and within which is mounted a reciprocating gate 4 that is connected with the crank shaft through a pitman. 5, said gate carrying a punch block 6, with punches 7 and 8 thereon. This punch, as is common, has a movement on the gate at substantially a right angle to the path of movement of the gate itself. All of these parts are of the usual construction and well known in the art, and therefore do not require more detailed description.

Fixed within the bed, opposite the punch holder, is a die block9, having a cover 10 connected therewith, and between which is movably mounted the dies 11 and 12. Any type of die block may be used with my header.

One end of the section 11 is provided with recesses 15 at the end of the grooves 16 to form the blank head.

The feeding mechanism comprises a bracket 17 secured by bolts 28, 29 and 30 that pass through the elongated slots 31, a shaft 18 having a feed roll 19 at one end nd a gear 20 adjacent to the other end upon Which is a friction brake 22, a roll frame 24 pivotally mounted upon a stud 23, a shaft 25 having a feed roll 26 thereon, a gear 27 fixed on said shaft 25 the teeth of which mesh into those of the gear 20, a fixed guide spring 32 that insures a positive straight movement of the bracket and having a lug 33 thereon for the screw 34 with a lock nut 35, said screw abutting against a button 36 in said bracket.

The wire is guided between the rolls l9 and 26 by a quill 37 secured by a screw 39 in a plate 38 fixed to the bracket 17, the axis of said quill being coincident with the feed line of the machine.

The roll 26 is held in contact with the roll 19 by the spring 40 between the frame 24 and washer 43, its tension being varied by a screw 41 in the yoke 42. A rod 44 provides ready means for rotating said bolt and a lock nut 45 with an arm 46 holds the bolt,

against premature rotation. Intermittent rotary movement is given the shafts 18 and 25 through the link 47 that is moved endwise by a cam (not shown) actuated by the shaft 2 and connected with a rock arm 48 pivotally mounted upon a bolt 49, a pawl carrier 50 upon the shaft 18 carrying a pawl 51 that engages the teeth of the ratchet disk 21, and a link 52 connecting the pawl carrier with rock arm 48. The above described mechanism for rotating the feed rolls from the crank shaft is old and constitutes no part of this invention.

The present practice of lubricating the wire before it is engaged by the feed rolls has proven objectionable, because the wire is wet and thereby affects the friction of the rolls thereon, so much so that the feed is not positive and frequently short lengths of wire are fed into the dies, resulting in the production of blanks that are imperfect; and again, as much of the lubricant is cleaned off by the feed rolls there is insufficient upon the wire as it enters the dies to produce the best results. Means are provided in my device forapplying lubricant to the wire after it passes the feed rolls and before it enters the die. The wire is therefore dry as it passes between the rolls, insuring a positive feed, and yet sufficient lubricant is applied for the necessary operations thereon. My device for accomplishing this result, consists of a cup 53, filled with lubricant, fixed to the bracket 17 by the bolts 54, and within which a cradle 55 is pivotally mounted upon one of said bolts. A shaft 56 is rotatably mounted in this cradle and carries a wheel 57, of felt or similar material, between fixed disks 58. The cradle is moved upwardly with a yielding pressure by a screw 59 threaded through the bottom of the cup, and within said cup, between said screw and cradle, is a spring 60. The quill 61 that guides the wire between the feed rolls and the bed is provided with a recess or slot 62, and into which projects the wheel 57 that is rotated by its frictional contact with the Wire passing through the quill. As it rotates, the wheel picks up sufficient lubricant from the cup and deposits it upon the wire.

a cross section.

Referring now particularly to the die gripping mechanism, the numeral 13 desighates a plunger that has a reciprocatory movement within the bed 1, derived from a cam 14 fixed upon a rotatably mounted shaft 63, through a rock lever 64, having a roll 65 therein contactingwith said cam, and mounted upon a fixed shaft 66, a yoke 69 connected with the plunger 13 by the stud 70, a shear block 68 within said yoke connected by a pintle 67 to said rock lever, a shear pin 72 projecting across the opening 71in said yoke and supported at each end in the shear bushings 7 3, and a screw 74 that is threaded in the yoke and bears against the shear block. holding itin contact with the shear pin 72, as shown in Fig. 9. Under undue or unusual strains the shear pin 72 is cut ofi by, the shear block 68 against the bushings 73. Rotation of the cam 14 actuates the rock lever 64 and moves the plunger 13in one direction, the spring 75, connected with the pintle 67, and the fixed pin 76, moves the plunger in the o posite direction and maintains the cam r0 1 65 in contact with the periphery of said cam.

Reciprocally mounted in the bed, and movable ina path at substantially a right angle.

to the plunger 13, are the slides 77 and 78, having heads 79 thereon, rectangular in The outer ends of the said slides are connected with a gripping block 80 by screws 81 that pass therethrough and into the slides, the outer ends of which are rounded and project into corresponding concaved recesses in the gripping block. This means of securing these parts together enables the gripping block and the slides to have a limited rocking movement in relation to each other. Between the dies and said gripping block 80 is a filler plate 96.

Lying within a recess in the plunger 13 are the tog le blocks 82-82, connected with the sli cs 77. and 78 by the toggles 83-83. Mounted within the bed 1, adjacent to the plunger 13, are the toggle adjusting blocks 8484 that are connected with the toggle blocks 8282 by the toggles 85- 85. The toggle adjusting blocks are independently and separately adjusted by means of the wedges 86 that are provided with one flat inclined face 87 and bear against a cor-- responding inclined face uponthe toggle adjusting blocks. These wedges are adjustable parallel to their length within the bed by the screws 88 that are threaded through the fixed toggle cap 89 and bear against the end of said wedges, and the auxiliary screws 90 that pass through the screws 88 and are threaded into said wedges (see Fig. 4). By raising the wedges 86, through the means just described, the toggle adjusting blocks 84 are independently moved toward the axis of the plunger 13, and the movement of the wedges in the opposite direction will permit the said blocks to be moved away from the plunger 13 by the screws 91 that pass through a slot 92 in the wedges, and are threadedtinto the said. blocks. This screw also holds the wedges, adjusting blocks and connected parts rigid, when in any of their adjusted positions.

Against each of the toggle adjusting blocks 84 are the plates 93 that take the end thrust caused by the movement of the plun: ger 13-. Each of these plates has a tongue 94 thereon that-projects into a groove in,

and are held in contact with, the toggle adjusting blocks 84 by the screws 95. Lateral thrust upon the heads 79 of the slides 77 and 78 is taken by the plate 118, which is mounted in the bed 1 and held by the screw 119. As theplunger 13 is moved through the action of the cam 14, the slides 77 and 78 are moved through the action of the toggle mechanism, hereinbefore described, and the dies are moved sidewise from the position where they receive the wire to the heading position. These parts are all moved in the opposite direction through the action of the spring 75 and the die returning mechanism, which comprises a filler plate 97, a pressure plate 98 mounted within a block 99 fixed in the bed, rods 100 connected with said pressure plate 98 and to a block 101 against which bears a spring 102 fixed to the bed 1. The inward movement of the movable plate 98 is limited by a screw 103 threaded through the block 101 and contacting with the bed. 7

By the mechanism above described for shiftin the dies an independent and separate a justment is given the slides 77 and 78, thereby enablin the dies to grip the wire with a variab e pressure, for example it may be held very rigidly atthe front or head end where the maximum strain ocours and only, slightly at the opposite or cutting off end, where it is nly necessary to prevent the wire from bending or swelling.

The numeral 104 designates the feed stop arm, which is connected with a rod 105 that passes through the bed 1 substantially parallel with the dies and the screw 106 that is threaded into the split collar 107, and having a nut 108. upon the outer end thereof. By proper manipulation of the screw 106 within the split collar 107 and the nut 108 upon the rod 105, the relative position of the feed stop arm 104 toward and away "from the dies may be varied.

The mechanism for operating and timing the stop arm 104 comprises the'cam 109 upon the shaft 63, having a cam groove 110 therein, within which the plate 111 is shiftably secured, a rock arm'1l2 secured to a shaft 114 rotatably mounted within the shaft '66, a roll 113 that projectsinto said cam groove, a lever 115 secured to the shaft 114, and a swivel block 116 pivotally mounted in the outer end thereof, which projects into the open space between the lugs 117 upon the stop arm 104 (Fig. 11). By this mechanism the adjustments of the stop arm 104, both as to timing and position, are controlled from mechanism upon therefore have it understood that I do not limit myself to the exact construction herein shown and described,'but claim all that falls fairly within the spirit and scope of my invention as set forth in the appended claims.

Having described my invention, what I claim as new and desire 'ters Patent, is:

1. The combination with dies; of means for imparting a lateral movement thereto; and means connected therewith, whereby the resistance pressure by the dies upon the wire will be variable at different points throughout the length of the dies.

2. The combination with dies; of means for imparting a lateral movement thereto, having independently operated members;

' and means for varying the relative positions of said members,

3. The combination with dies; of means for imparting a lateral movement thereto in one direction, said meanshaving companion members connected therewith; and means for independentlyivarying the relative positions of said companion members.

4. The combination with dies; of means for moving the same laterally, said means having a plurality of independent slides; a primary member; means for connecting said slides to said primary member; and means for independently adjusting the relative positions of said slides.

5. The combination with dies; of means for imparting a lateral movement thereto,

comprising a plurality of reciprocating members; a plunger; an operative connection between each of said slides and said lunger; and means for independently varying the'position of each of said slldes toward and away from said plunger.

6. The combination with dies; of meansfor moving the same'laterally, having independent slides operatively connected therewith; a plunger; an operative connection between said slides and plunger; and means for separately and independently varying the relative positions of said slides and their operative connection with said plunger.

to secure by Let- 7. The combination with dies; of means i for imparting a lateral movement thereto, said means comprising a plate; companion slides connected therewith; a plunger; a toggl connection between said plunger and slides; and means for separately adjustin said slides, whereby they may occupy di fere'nt positions in relation to said plunger.

8. The combination with dies; of a gripping block; slides connected therewith so that said gripping block may have a limited rocking .movement in relation thereto; a plunger; an operative connection between said plunger and slides; adjusting blocks; an operative connection between said plunger and adjusting blocks; and means for varying the position of said adjusting blocks.

9. The combination with dies; of a gripping block; slides connected therewith so that said gripping block may have a limited rocking movement in relation thereto; a plunger; an operative connection between said plunger and slides; adjusting blocks;

an operative connection between said plunger and adjusting blocks; means for varying the position of said adjusting blocks; and means'for locking said adjusting blocks against movement when in its adjusted posi tions.

10. In a header, the combination with wire feed rolls; of means for rotatably.

mounting the same uponsaid header; and meansfor applying lubricant to said wire between the feed rolls and the header.

11. In a header, the combination with dies; of means for feeding wire thereto; means for limiting the movement of said feed, said means comprising a rotarily mounted stop arm; and means for imparting a rocking movement to said stop arm about the axis thereof, actuated by cam mechanism upon one side of the header.

12. Ina header, the combination with dies; of means for feeding wire thereto; means for limiting the movement of said feed, said means comprising a rotarily mounted stop arm; means exposed upon one side of the header, for adjusting the relative position of said stop arm toward and away from said dies; and means, actuated by a cam upon one side of the header, for imparting a rocking movement to said stop arm about the axis thereof.

13. In a header, the combination with dies; of means for imparting a lateral movement thereto, said means comprising a cam, a rock lever, a plunger, and slides; means for limiting the feed of the wire to said dies, said means comprising a Stop arm; a

cam; a rock shaft rotatably mounted within the fulcrum of said rock lever; a rock lever connected with said rock shaft and having an operative connection with said cam; and a second rock lever connecting said rock shaft with said stop arm.

In testimony whereof I afiix my signature in presence of two witnesses.

RICHARD LESTER VVILCOX. Witnesses:

F. L. PLATT, H. B. CoLEY.

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