USRE13972E - Planoqraph co - Google Patents

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Publication number
USRE13972E
USRE13972E US RE13972 E USRE13972 E US RE13972E
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US
United States
Prior art keywords
machine
tripper
shoe
heel
breasting
Prior art date
Application number
Inventor
The Heels Of Boots
Original Assignee
United Shoe machinery Company
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  • This invention relates to machines for operating upon the bottoms of boots and shoes, and more particularly to machines for acting upon heels.
  • theinvention Will be described as embodied in a heel breasting machine.
  • the invention is designed to provide a machine or' the general characterl above suggested which Shall be of improved construction, simple, eiiicient and accurate in operation.
  • z Figure 1 - is a side elevation of the illustrative machine, showing in full lines a Shoe in position to be operated upon, and in dotted iines the vvorlr support in its shoe receiving position;
  • Fig. 2 is a front A'elevation of the machine shown in Fig. 1;
  • Fig. Bis a vertical section (partly in elevation) on a plane extending from front to rear of the machine indicated by the line 3-3 of Fig. 2;
  • Fig. i is a horizontal section on a line 4:#4: of Fig. 2;
  • Fig. 5 is a vertical, detail section on a line 5- of Fig. 2, as viewed from the left in Fig. 2;
  • Fig. 6 is a horizontal section on the line 6-6 of Fig. 3;
  • Fig. 7 is an enlarged plan (partly in section) of the trippers shown at the left of Fig. l1;
  • Fig. 8 is a section on the line 8-8 of Fig. 7, looking toward the right in the latter figure;
  • Fig. 9 is a side elevationof theparts shown in Fig. 8;
  • Fig. 10 is a plan view of the parts shown in Figs. 8 and 9;
  • Fig. 11 is a vertical section, crosswvise the machine on a line 11--11 of Fig. 4;
  • Fig. 12 is a vertical serial No. 333,170. Renewed April ⁇ 12-l 1910, Application forlreissue filed May 10,
  • Fig. 20 is a detached plan view of a tripper stop plate shown in dotted lines in Fig. 7; Fig. 21 iS a diagrammatic View showing a Shoe and the relation thereto o the trippers and side gages.
  • the shoe to'be operated upon is sustained in inverted position upon a pivoted Work support 20; and when properly adjusted is acted upon by a vertically reciprocating tool.
  • Such adjustment as may be required in the Speciiic machine to determine the proper relation of tool and Work, is effected by moving the Work.
  • the Work support 20 consists of a standard in two parts, 21 and 22, connected by an adjusting nut 23, engaging right and left threads on the respective parts, which are rendered relatively non-rotatable by a spline 24 (Fig. 1) on the part 21, in sliding engagement With an axial recess on the other art.
  • the Work support 2,0 is pivoted by a stud 26 to the machine base 25; and the lower extremity of the support, being appropriately rounded, iits in a segmental recess 27 of the base '25 and bears against the latter so as to transmit pressure exerted upon the shoe, directly to the base'.
  • the upper extremity of the Work support 20 has a head 28, to which is Secured a jack block 29 on a pivot 30.
  • This pivot 30 permits the shoe 31to be rocked so as to change the vertical plane angle between the breast and the vertically moving tool andthereby to i determine the tread-angle to be formed by the breasting cal Section on the line 14.-14. of Fig. 7 3 Fig.
  • the rocking of the jack block 29 may be prevented, limited or adjusted'by means of screws 32-32, carried in the head 28.
  • rlhe shoe is placed upon the work support when the latter occupies the position indicated by dotted line in Fig. 1. Thereafter the support and the shoe are moved rear wardly beyond the proper operative position of the shoe in order to permit certain positioning devices to be introduced in front of the heel breast; and when this has been effected the shoe is moved forwardlyv to the full line position shown in F ig.l 1.
  • the preliminary position after the shoe has been pushed back is shown in full lines in Fig. 3; and the operative position of the shoe after it has vbeen moved forward again is shown in dotted lines in Fig. 3.
  • the operator moves a presser foot down against the tread face of the heel to hold the shoe more or less firmly between the presser foot and work support.
  • the presser foot is operated by-means of a treadle 33, shown in Figs. 1 and 2.
  • the treadle33 is a bell crank, fulcrumed upon a treadle shaft 33 and comprises an arm 332 the upper extremity of which is connected by' a link 35 to a 34.
  • horizontally sliding wedge 34 extends through a slot fixed at the upper end of a vertical'link 38 which is pivoted at its lower end by a pin 39 to a cam lever 40.
  • the cam lever 40 is fulcrumed at 41 to a bracket 42 on the machine frame, and has at its outer end a cam roll 43 to engage a presser foot cam 44, fixed upon the main shaft 45 of the machine.
  • the shaft45 is suitably journaled in the machine base 25 and is driven through the agency of a clutch pulley 46 (Fig. 15).
  • the lower face of the wedge 34 bears against a correspondingly inclined surface upon the yoke 37 and the upper lface of the wedge engages ablock 47 fixed at the lower end of a presser foot rod 48, said block 47 being arranged to slide vertically in the slot 36 of the yoke 37.
  • the presser foot rod 48 has at its upper extremity a bifurcated block 49, embracing one endof alever 51, which is pivoted thereto at 50.
  • the lever 51 is fulcrumed at 52 upon a bracket 53, projecting from the machine head 54.
  • the lever 51 is also pivoted by a pin 55 (see Fig. 3) to an adjustable link 56, xed at its lower end to the presser foot plunger 57
  • a pin 55 see Fig. 3
  • an adjustable link 56 xed at its lower end to the presser foot plunger 57
  • the adjustable link 56 comprises two, oppositely threaded screws 61 and 62, engaged by an adjusting nut 63, thus providing for vertical adjustment ofthe presser foot plunger 57 with relation to the throw of the lever 51.
  • the screw 61 is connected to the plunger 57 by means of a pin 64; and the lower extremity of the plunger 57 is j oivotally connected by a pin 65 to a presser foot 66.
  • the presser foot 66 is further connected to the 57 Aby being' pivoted at 67 to a rod j ecting upwardly from the presser entering an aperture-70 in an arm 69 of the plunger' 57 -By moving the rod 68 vertically the presser foot 66 is rocked about its pivot 65 at the lower end of the plunger 57, and thus the presser foot may be adjusted at any practicable angle to the horizontal.
  • the presser foot may be secured in adjusted position by means of a set screw 71, threading into the end of the arm 69 of the plunger 57.
  • Fig. 14 is a transverse vertical section (partly in elevation) of the presser foot, on a plane located just'k to the right of the plun ger 57 as it is viewed in Fig. 3.
  • a roll 74 is loosely journaled plunger 68, profoot and upon a shaft 75, fixed in a vertically sliding block 76, arranged to retreat upwardly into a recess 77 in the presser foot 66.
  • the block 76 has fixed in it two pins 78 ⁇ 78 which project upwardly through the presser foot 66 and are encircled within the recess 77 by to press the block 76 and the presser roll 74 downwardly toward the shoe.
  • a sliding member 8()v of the clutch consists of two collars 81 and 82, rigidly connected by a pin 83, each of said collars being splined to the shaft-45 so as to rbe axially movable thereon.
  • kInterposed between the collars 81 and 82 is a collar 85, rigidly fixed to the shaft, the pin 83 passing loosely therethrough.
  • recesses 86, 86 In the fixed collar 85 are provided recesses 86, 86, in which are mounted springs 87, 87, which tend constantly to force the sliding collars 81, 82, toward the right in Fig. 15," to throw the clutch into driving engagement by meshing the teeth 88, on collar 81 with teeth 89 mounted onl the hub ofl the belt pulley 46.
  • the sliding clutch member 80 is yheld normally out of engagement v(against the tension of the springs 87, 87 by means of at shipper rod 90, the lower extremity of which is arranged to project between the fixed collar 85 and the sliding collar 82.
  • a spring 157 encircling the shipper rod 90 tends constantly to elevate the latter and permit engagement of the clutch; but said spring is normally opposed by devices which are released to start the machine, upon movement of the work from preliminaryr to operative position. This release is vaccomplished through the agency of two trippers 91 and 92 (Fig. 7) arranged alternately tov engage lthe breasts of right and left shoes, and to accompany said shoes :forwardly during their movement to operative position.
  • the manner in which the trippers are associated with shoes will be described first before explaining the manner in vwhich they serve to release the shipper rod 90 to permit the action of spring 157.
  • each tripper performs its two ofiices in a more or less definite time relation such that the machine shall not be started early enough toy initiate the -breasting operation before the work positioning ofiice has been discharged. When such a time relation prevails, it insures that the heel shall be correctly positioned before the breasting commences.
  • Fig.' 21 illustrates diagrammatically the manner in which the tripper 92 engages the breasty of a toplift at one corner in order to position the latter in the line of the knife 195. It has 'been lstated that the tripper partakes of the endwise movement of the shoe as the latter passes from preliminary to operative position, the hook ofthe tripper being latched over the breast of the toplift soas to be drawn forward therewith. In order to define the extent of this movement of the shoe and tripper, provision is made for positively arresting the tripper whereby the shoe is also arrested, the tripper hook still engaging the toplift. The devices for arresting the tripper.
  • tripper and shoe shall be brought to a standstill just as the toplift corner a adjacent the'tripper, reaches a position beneath the knife 195.
  • the specific form of tripper serves definitely to position the cerner andthereby contributes to present the heel in its proper relation to the breasting tool.
  • the other tripper 91 remains in inoperative position and hence it linay be disregarded for the present.
  • Fig. 21 but one corner of the heel is engaged; 'and this leaves the shoe comparatively free to swing horizontally so as to vary the median angle of the breast e. the angle between the breast and longitudinal median line kof the heel).
  • an adjustable side gage 159 is provided to limit the horizontal swing of the shoe.
  • the gage 159 will be the subject of afull description hereinafter.
  • y i j A left shoe is represented in Fig. 21; and the tripper is shown as engaging the left hand or outside corner of the toplift.
  • lt is knife 195; and to swing the shoe upon sub- 4 i stantially that corner as a pivot until the proper median angle has been. described whereupon further swing will be obstructed by the sidegage 159.
  • tripper 92 is applicable also to the other tripper 91 which acts uponthe outer corner of a right heel and cooperates with a side gage on the opposite side of rthe shoe. Since it is the f from its active position.
  • the tripper 91 is showndetached-- It comprises a ⁇ hook 93, adjustably connected by a screwthreaded rod v9-1 to a tripper shank 95, the
  • hook and shank being mounted to slide to-A gether' endwise in a'casing 96.
  • the casingv 96 is also arranged to slidev endwise with the hookand shank, in a tripper frame 97.
  • the shifter 103 occupies an intermediate position such .that neither tripper is in operative position.
  • ⁇ thetripper shifter 103 is arranged to slide endwise rectilinear'ly in bearings 104:, 105. The movements ofthe tripper shifter 103 Aare actuated from the main shaft.
  • the shifter 103 is actuated through the agency of a shifter cam 106, fixed upon an auxiliary shaft 107, which is driven through a gear 108, fast thereto, by a gear 109, fixed upon p l
  • the ratio ofthe gears 108 and 109 is such that the auxiliary shaft rotates once whilev the main shaft rotates twice.
  • the cam 106 actsv upon a roll 112, mounted upon a jcam lever 110, fulcrumed at 111 to the-,bracket 4:2.
  • Pivoted to the cam lever110v is a shifterjrod 113, which (see-,F ig.
  • j11 is connected at its ,upper ⁇ extremity with one arm of abell-crank 114 fulcrumed at 115 to a bracket 116on the machine frame.
  • the vertical arm of the bell-crank v114 has a slot 117- into which projects a block 118, journaled upon a pin 119, fixed in the tripper shifter 103.-
  • the tripper shifter 103 is reciprocated endwise horizontally to move the trippers alternately into and out of operative position.
  • the hook 93 ofthe tripper reaches its position in front of the heel breast while the shoe stands yet in its preliminary position.y It remains then for ⁇ the operator 4to drawthe shoe forward to operative position;
  • the heel will, through the hook 93,'move the -tripper forward until, as will be presently described, the movement of the trippery vis finally arrested, thereby also arresting the shoe and as already described, determining in part the positionof the heel breast in relation to the breasting tool.
  • the hook 93 is of such dimensions that it engages only the toplift 123 and, hence, the final varrested position of the hook determines the position of the toplift with relation to the breasting tool. This is preferable for the reason that the toplift is usually given substantially its finished form before application to the heel, and is located on the latter in the position which it is desired to have upon the finished shoe.
  • the toplift may serve in the capacity of a pattern, whereby the heel may be properly adjusted to the breasting tool.
  • the shank 95 has an integral ear 125 (Fig. 10) which receives and slidesupon a stud 126, fixed to an ear 127 integral with the casing 96.
  • a stop collar 126 on the stud 126 limits the movement of the ear 125-and consequently of the shank 95 to the right with relation to the casing 96.
  • a spring 128 bears at one end against the ear 125 and, at its other end, against an 'ear 129 integral with t-he tripper frame 97; and this spring tends to move the shank 95 to the left i in Fig. 10 and to oppose movement'of the hook 93 as it accompanies the movement of the shoe.
  • the spring 128 encircles a stud 138, fixed in the ear 129.
  • Aibifurcated extension 135 of the casing 96 extends to the left in Fig. 8 ⁇ and enters a slot'130 in acylindrical portion 131 of the vshank 95.
  • lviounted in said ⁇ cylindrical portion so as to slide vertically therein is a pin 132, bearing near its lower xtremity a. collar 133, having a beveled cam surface 134.
  • the cam surface 134 coperates with a similarly beveled surface upon the underside of the ⁇ bifurcations 135 of the casing 96.
  • a spiral spring 136 is interposed between a nut 137 fast to the pin 132 and the top of the shank 95; and serves to hold the-cam face 134 yieldingly up against the coperating cam on the casing 96.
  • the stop faces for thelugs 139 and 139 on the respective casin'gs for the trippers 91 and 92, are indicated at 140 and 1402.
  • the plate 140 has also a curved face 1403.
  • the latter has the same curve, as the breasting knife and, consequently, has the same curve as the breast of the heel when finally shaped.
  • the pfate 140 is secured to the presser foot so as to be readily removable to be replaced by other plates, differently curved to suit various classes of work. In assembling a plate 140 with the presser foot, the operator may place the curved edge 1403 against the back of the knife and he may thus ascertain two important circumstances; that the plate tion between them.
  • the curved stop faces 140 and 1402 have characteristic shapes, such that a lug 139 will be arrested at di'erent stages of its travel according as it engages different parts of a stop face.
  • a heel when in operative position, stand with a corner of its toplift approximately in the line 'corner beneath ythe Acurve of the knife, a greater distance than would be necessary .for
  • the stop faces 140 and 1402 are so shaped that ra tripperengaging a narrow heel will be arrested earlier in its travel, than would occur if it engagedra wide heel with a consequent greater lateral displacement of its lug 196 such as to contact with a different part of a face 140.
  • the travel of each tripper is rendered variable to suit ythe requirements of heels of different widths. It is true of course that a tripper hook and its engaged heel continue to travel after a lug 139 has engaged a stop face 140', but this continued travel never varies since it is limited by contact of the ear 125 (Fig.
  • the movement of the slide 95 after the casing 96 has become stationary serves to depress the pin 132 and thereby to throw the clutch and start the machine.
  • the lower extremity of the pin 132 is normally in contact with one end of a bell-crank 141, ⁇ [fulcrumed at 142 to the presser foot.
  • the bell-crank 141 is rocked contra-clockwise in Fig. 3.
  • ⁇ Pivoted to the'bell-crank lever at 143 is a. plunger 144, seated in a. recess in the presser foot and encircled by aspiring-"145 tending normally to rock the bellcrank clockwise in Fig.
  • a starting lever 146 (Fig. 4), fulcrumed at 147 to the frame of the machine.
  • the starting lever 146 is connected by a link 149 to the swinging end of a shipper yoke 150 (see also Fig. 11), which is journaled to rock on a vertical axis supplied by a pin 151 (see also Fig.11) mounted in ears 152, 152 on a vertivcally reciprocating tool actuating slide 204.
  • the yoke 150 is provided with vertical reciprocation in unison with the breasting tool slide; and upward movement of the yoke after the tool has completed the breasting 'operation is utilized for disengaging the clutch' and stopping the machine. Reciprocation of ythe link 149 rocks the yoke 150 on its vertical pivot.
  • ear 153 which normally underlies one end of a shipper-rod 154, fulcrumed to the frame of the machine at 155.
  • the opposite end of the shipper-rod lever 154 is connected by a pin 156 to the clutch 'shipper-rod 90.
  • the lever 146 is rocked clockwise in Fig. 4 the yoke 150 will also be rocked clockwise in said figure', and thereby the ear 153 (Fig. 11) will be withdrawn from beneath the lever 154, releasing the spring 157 (Fig. 15) to elevate the shipperrod 99 and permit engagement of the clutch for starting the machine.
  • the trippers are operative only one at a time and they each, when acting,
  • the shoe may be held against horizontal movement bv engaging it at two points to wit :'-at a breast corner and at a portion of the sole edge as shown in Fig. ⁇ 21.
  • W'hile a tripper and a side gage are not mutually indispensable, it is preferred that they cooperate as above described.
  • the 158 is intended to coperate with the left side of the sole of a right shoe; and the gage 159 isintended to coperate Awith the right edge of the sole of a left shoe .(see Fig. 21),.
  • the gages are preferably substantially alike, and accordingly it Will suflice to describe in detail but one of them.
  • the gage 158 comprises a holder 160, pivoted at 161 between ears 162, 162- depending from a bracket 163 secured to the frame of the machine. The gage moves upon its pivot 161-into and out of operative position, the latter being shown in dotted lines in Fig. 13.
  • the immediate gaging device of the gage 158 consists in a linger164, laterally adjustable in a ⁇ slot 165 of the holder
  • the character of this adjustment is such that when the gage finger 164 occupies the operative position indicated by dotted 'lines in Fig. 13, it may be adjusted hori- 1 zontally transversely .of the machine to vary the position determined by itfor a coperating sole edge.
  • the holder 160 is rocked about its pivot 161, to move the gage finger 164 into and out of operative position, through the agency of a tooth 168 engaging a co-acting tooth 169 on a rack bar 17 0, arranged to reciprocate endwise in the bracket 163.
  • the side gage 159 has a holder 160 mounted on a pivot 161', and. an adjustable gaging finger 164. The latter is moved into and out of operative position by means of a tooth 169 upon the rack bar 170 engaging a recess 171 in the holder 160.
  • the gages may be held in the full line .positions of ⁇ Fig. 13 bv the engagement of their respective teethu with those of the 'i rack bar, the rack barbeing maintained in its intermediate position by spiral springs 1 72, 172, act-ing upon its opposite extremities.
  • the rack bar 170 is moved from its intermediate vposition to one or the other of g the extremes of its reciprocation by mechanism presently to be described; and When so moved one ofits teeth will depart from engagement with the adjacent gage and Will be ⁇ no longer effectivev to hold ⁇ the latter in 1.
  • pivot pins 161, 161 are encircled by torsional springs (not shown) each having its opposite ends secured respectively to the holders 160, 160
  • a Wedge 180 (Fig. 11), which, at one eXtreme of the horizontal movement of said block, engages While moving vertically with rod 48, a spring pressed lug- 181 mounted in a block 182 (Figs. 4 and 11) Which slides horizontally in Ways 183 on the frame of the machine.
  • Pivoted to the block 182 is a bearing 185 inclosed in a slot 186 at one end of a lever 187 which is fulcrumed at 1.88 to the frame of the machine.
  • the lever 187 has a sliding pivot 189 connecting it to a second lever 190 fulcrumedat 191 and having a second sliding pivot 193 by Which it is attached to the rack bar 17 0.
  • the slide 241 is mounted immediately upon the breasting tool slide 59 by means of 'a vertical screw 198, which may be turned to adjust the slide 241 vertically by means of a pinion 199 and gear 200, the latter of which is formed on the hub cfa handle wheel .201, rotatable upon the stud 202 carried in the breasting tool slide 59.
  • the knife 195 may become dulled, and when it is sharpened it is to some extent 'ground away and demands to be adjusted slightly to compensate for its decreased length. This is provided for by an adjustment independent of that of the slide 241 on' the plunger 59 sothat the compensating adjustment may be effected without changing the relation of the knife'to its actuating mechanism.
  • a slide 248 in ways 244 formed in the plimger 59 This is accomplished by a slide 248 in ways 244 formed in the plimger 59.
  • the lower end of the slide 248 bears against the upper end of the holder 196 and is reciprocalole vertically by means of a worm pinion 246 and a worm rack 247.
  • the worm pinion 246 is journaled uponga stud 248 in ears 249, 249', on the slide 241.
  • the knife holder 196 may be moved into contact there- VVprises a vertically moving head204, having ears 205 and 206, encircling vertical guide rods 207, 207 rigidly mounted in the frame.
  • the head 204 is reciprocated vertically by an eccentric 208 (Fig. 2) on the main shaft 45, having an eccentric strap 209 connected by a link 210 to a pin 211 mounted in the bottom of the head 204. As shown in Fig. 2, an eccentric 208 (Fig. 2) on the main shaft 45, having an eccentric strap 209 connected by a link 210 to a pin 211 mounted in the bottom of the head 204. As shown in Fig. 2, an eccentric 208 (Fig. 2) on the main shaft 45, having an eccentric strap 209 connected by a link 210 to a pin 211 mounted in the bottom of the head 204. As shown in Fig.
  • thebreasting tool slide 59 has ears 213 and 214 also mounted on the guide rods 207. Encircling eachof thevrods 207 is a spiral spring 215 interposed between an ear v 214 on the knife plunger 59 and an adjusting nut 216, which threads onto a sleeve 217 fixed to one ofthe ears 205 on the head 294 by means of a pin 219. A lock nut 218 is supplied for locking the adjusting nut.216

Description

M. D. PHELAN. MACHINE FOR BREASTINGVTHE HEELS 0F BOOTS AND SHUES. APPLICATION FILED MAY I0. 1912.
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, M ERTON D. PHELAN,
UNITED sT-ATEs PATENT oEErcE.
or BOSTON, MASSACHUSETTS,
ASSIGNOR TO NITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.
MACHINE FOR BREASTING THE H Original application filed September 4, 1906,
Original No. 958,005, dated May 17, 1910.
T0 all whom t may concern Be it known that I, MEETON D. PHELAN, a citizen of `the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented new and use- Ytullmprovements in Machines for Breasting the Heels of Boots and Slices, of Which the following is a specification.
This invention relates to machines for operating upon the bottoms of boots and shoes, and more particularly to machines for acting upon heels. For purposes of illustration, theinvention Will be described as embodied in a heel breasting machine.
The invention is designed to provide a machine or' the general characterl above suggested which Shall be of improved construction, simple, eiiicient and accurate in operation.
One practicable mannerA in Which these objects may be attained will more fully appear in the succeeding specification, which describes an illustrative machine embodying the various features of the invention, collectively considered. The specific illustrative machine just referred to is shown in the accompanying drawings.
In the drawings zFigure 1 -is a side elevation of the illustrative machine, showing in full lines a Shoe in position to be operated upon, and in dotted iines the vvorlr support in its shoe receiving position; Fig. 2 is a front A'elevation of the machine shown in Fig. 1; Fig. Bis a vertical section (partly in elevation) on a plane extending from front to rear of the machine indicated by the line 3-3 of Fig. 2; Fig. i is a horizontal section on a line 4:#4: of Fig. 2; Fig. 5 is a vertical, detail section on a line 5- of Fig. 2, as viewed from the left in Fig. 2; Fig. 6 is a horizontal section on the line 6-6 of Fig. 3; Fig. 7 is an enlarged plan (partly in section) of the trippers shown at the left of Fig. l1; Fig. 8 is a section on the line 8-8 of Fig. 7, looking toward the right in the latter figure; Fig. 9 is a side elevationof theparts shown in Fig. 8; Fig. 10 is a plan view of the parts shown in Figs. 8 and 9; Fig. 11 is a vertical section, crosswvise the machine on a line 11--11 of Fig. 4; Fig. 12 is a vertical serial No. 333,170. Renewed April `12-l 1910, Application forlreissue filed May 10,
tion showing a ELS or Booms AND SHOES.
Specification of Reissued Letters Patent. Reissued Ajlg'.l 24, 1915.`
serial Nb. 554,961.
1912. Serial No.'
is a vertical section, crossWise the machine, on a line 13-13 of Fig. 1; Fig. 14 is a verti- 15 is a vertical section through the axis of the main shaft of the machine on lthe line 15-15 of Fig. 1, looking toward the left in the latter figure; Fig. 16 is a vertical section from front to rear of the machine on a line 16-16 of Fig. 2, looking toward the right in the latter igure; Fig.' 17 is a detail Ielevaknife-carrying slide in sec tion on the line-1717 of Fig. 2; Fig. 18 is a section on the line 18-18 of Fig. 17 Fig. 19 is a detail section on a line 19--19 of Fig.. 12; Fig. 20 is a detached plan view of a tripper stop plate shown in dotted lines in Fig. 7; Fig. 21 iS a diagrammatic View showing a Shoe and the relation thereto o the trippers and side gages.
Referring to Figs. 1 and 2, the shoe to'be operated upon is sustained in inverted position upon a pivoted Work support 20; and when properly adjusted is acted upon by a vertically reciprocating tool. Such adjustment as may be required in the Speciiic machine to determine the proper relation of tool and Work, is effected by moving the Work. The Work support 20 consists of a standard in two parts, 21 and 22, connected by an adjusting nut 23, engaging right and left threads on the respective parts, which are rendered relatively non-rotatable by a spline 24 (Fig. 1) on the part 21, in sliding engagement With an axial recess on the other art. The Work support 2,0 is pivoted by a stud 26 to the machine base 25; and the lower extremity of the support, being appropriately rounded, iits in a segmental recess 27 of the base '25 and bears against the latter so as to transmit pressure exerted upon the shoe, directly to the base'.
As lshown in Fig. 3, the upper extremity of the Work support 20 has a head 28, to which is Secured a jack block 29 on a pivot 30. This pivot 30 permits the shoe 31to be rocked so as to change the vertical plane angle between the breast and the vertically moving tool andthereby to i determine the tread-angle to be formed by the breasting cal Section on the line 14.-14. of Fig. 7 3 Fig.
operation. The rocking of the jack block 29 may be prevented, limited or adjusted'by means of screws 32-32, carried in the head 28. rlhe shoe is placed upon the work support when the latter occupies the position indicated by dotted line in Fig. 1. Thereafter the support and the shoe are moved rear wardly beyond the proper operative position of the shoe in order to permit certain positioning devices to be introduced in front of the heel breast; and when this has been effected the shoe is moved forwardlyv to the full line position shown in F ig.l 1. The preliminary position after the shoe has been pushed back is shown in full lines in Fig. 3; and the operative position of the shoe after it has vbeen moved forward again is shown in dotted lines in Fig. 3. When the work stands in preliminary position, it -is sustained from beneath by the work support and at this time it is desirable for the purposes of the specific illustrative machine to engage the heel of the shoe from above. Accordingly, the operator'moves a presser foot down against the tread face of the heel to hold the shoe more or less firmly between the presser foot and work support. The presser foot is operated by-means of a treadle 33, shown in Figs. 1 and 2. Referring now to Figs. 1, 15 and 16, the treadle33 is a bell crank, fulcrumed upon a treadle shaft 33 and comprises an arm 332 the upper extremity of which is connected by' a link 35 to a 34. The wedge 36 in a yoke 37,
horizontally sliding wedge 34 extends through a slot fixed at the upper end of a vertical'link 38 which is pivoted at its lower end by a pin 39 to a cam lever 40. `The cam lever 40 is fulcrumed at 41 to a bracket 42 on the machine frame, and has at its outer end a cam roll 43 to engage a presser foot cam 44, fixed upon the main shaft 45 of the machine. j The shaft45 is suitably journaled in the machine base 25 and is driven through the agency of a clutch pulley 46 (Fig. 15). The lower face of the wedge 34 bears against a correspondingly inclined surface upon the yoke 37 and the upper lface of the wedge engages ablock 47 fixed at the lower end of a presser foot rod 48, said block 47 being arranged to slide vertically in the slot 36 of the yoke 37. Thus, when the operator depresses his treadle, the wedge 34 is moved to the right in Fig. 16, and the presser foot rod 48 is elevated. j 5
Referring now to Fig. 2, the presser foot rod 48 has at its upper extremity a bifurcated block 49, embracing one endof alever 51, which is pivoted thereto at 50. The lever 51 is fulcrumed at 52 upon a bracket 53, projecting from the machine head 54. The lever 51 is also pivoted by a pin 55 (see Fig. 3) to an adjustable link 56, xed at its lower end to the presser foot plunger 57 Thus, when the lever 51 is rocked the springs 79, tending constantly plunger 57 is vertically moved in 'ways 58 (Fig. 6) formed in the b'reasting tool slide 59, the presser foot plunger being held in the ways 58 by cap' 4plates 60, 60, fastened to the slide 59. l
Referring again to Fig. 3, the adjustable link 56 comprises two, oppositely threaded screws 61 and 62, engaged by an adjusting nut 63, thus providing for vertical adjustment ofthe presser foot plunger 57 with relation to the throw of the lever 51. The screw 61 is connected to the plunger 57 by means of a pin 64; and the lower extremity of the plunger 57 is j oivotally connected by a pin 65 to a presser foot 66. The presser foot 66 is further connected to the 57 Aby being' pivoted at 67 to a rod j ecting upwardly from the presser entering an aperture-70 in an arm 69 of the plunger' 57 -By moving the rod 68 vertically the presser foot 66 is rocked about its pivot 65 at the lower end of the plunger 57, and thus the presser foot may be adjusted at any practicable angle to the horizontal. The presser foot may be secured in adjusted position by means of a set screw 71, threading into the end of the arm 69 of the plunger 57.
Fig. 14 is a transverse vertical section (partly in elevation) of the presser foot, on a plane located just'k to the right of the plun ger 57 as it is viewed in Fig. 3.
Referring now to Figs. 3 and 14 in the front end of the presser foot 66 are mounted two yielding pressers 72, 73. Since these two pressers are substantially alike it ywill suiiice to describe one of them. j As shown in Fig. 14, a roll 74 is loosely journaled plunger 68, profoot and upon a shaft 75, fixed in a vertically sliding block 76, arranged to retreat upwardly into a recess 77 in the presser foot 66. The block 76 has fixed in it two pins 78`78 which project upwardly through the presser foot 66 and are encircled within the recess 77 by to press the block 76 and the presser roll 74 downwardly toward the shoe. t
When the operator depresses the treadle and thereby moves the presser foot -down against the tread faceo-f the heel, (the latter being then in its preliminary position) the presser rolls 74 first strike against the heel, and then upon further descent of the presser foot the rolls retreat upwardly, maintaining pressure upon the heel but at the Sametime permitting movement of the shoe from its preliminary position to its operative position.
When thev presser foot has been depressed by the operator as above described, it is next desirable to move the shoe from preliminary position to operative movement is utilized, preferably in its later stages, for 'starting the power operation of the machine. After the machine has started position, and this with the shoe in operative position the presser foot cam 44 acts through the link 38 and rod 4:8 to force'the presser foot firmly against the heel; and preferably this firm engagement continues during the entire breasting operation .so as lto grip the heel securely in adjusted position between the presser foot and ywork support.- j
It has been stated'that the machine is started by moving the shoe between preliminary and operative position, but before considering the immediate effect of this movement of the shoe,`it is expedient pre-l liminarily to describe a convenient form of clutch such as is used on the specific illustrative machine. Reference may be had to Fig. 15, which is a sectional View drawn on thevertical `plane of the axis `of the main shaft 45. The shaft has a loose belt pulley 4:6, which is restrained against axial vInovement and has upon its hub one member of a positive clutch. A sliding member 8()v of the clutch consists of two collars 81 and 82, rigidly connected by a pin 83, each of said collars being splined to the shaft-45 so as to rbe axially movable thereon. kInterposed between the collars 81 and 82 is a collar 85, rigidly fixed to the shaft, the pin 83 passing loosely therethrough. v In the fixed collar 85 are provided recesses 86, 86, in which are mounted springs 87, 87, which tend constantly to force the sliding collars 81, 82, toward the right in Fig. 15," to throw the clutch into driving engagement by meshing the teeth 88, on collar 81 with teeth 89 mounted onl the hub ofl the belt pulley 46.
The sliding clutch member 80 is yheld normally out of engagement v(against the tension of the springs 87, 87 by means of at shipper rod 90, the lower extremity of which is arranged to project between the fixed collar 85 and the sliding collar 82. A spring 157 encircling the shipper rod 90 tends constantly to elevate the latter and permit engagement of the clutch; but said spring is normally opposed by devices which are released to start the machine, upon movement of the work from preliminaryr to operative position. This release is vaccomplished through the agency of two trippers 91 and 92 (Fig. 7) arranged alternately tov engage lthe breasts of right and left shoes, and to accompany said shoes :forwardly during their movement to operative position. The manner in which the trippers are associated with shoes will be described first before explaining the manner in vwhich they serve to release the shipper rod 90 to permit the action of spring 157. l
For the purposes lof the particular machine underl discussion the trippers 91 and 92 operate alternately and each when operative performs'two ofiices-a clutch releasing office serving to start the machine, andv a work positioning ofiice serving to locate a corner of a heel in propery vertical alinement with the specific form of' verticallyv 1t vis preferred that acting breasting tool. each tripper perform its two ofiices in a more or less definite time relation such that the machine shall not be started early enough toy initiate the -breasting operation before the work positioning ofiice has been discharged. When such a time relation prevails, it insures that the heel shall be correctly positioned before the breasting commences. rlhe work positioning office will be explained first,
Fig.' 21 illustrates diagrammatically the manner in which the tripper 92 engages the breasty of a toplift at one corner in order to position the latter in the line of the knife 195. It has 'been lstated that the tripper partakes of the endwise movement of the shoe as the latter passes from preliminary to operative position, the hook ofthe tripper being latched over the breast of the toplift soas to be drawn forward therewith. In order to define the extent of this movement of the shoe and tripper, provision is made for positively arresting the tripper whereby the shoe is also arrested, the tripper hook still engaging the toplift. The devices for arresting the tripper. are adjusted so that the tripper and shoe shall be brought to a standstill just as the toplift corner a adjacent the'tripper, reaches a position beneath the knife 195. Thus the specific form of tripper serves definitely to position the cerner andthereby contributes to present the heel in its proper relation to the breasting tool. kDuring all this time the other tripper 91 remains in inoperative position and hence it linay be disregarded for the present. As shown in Fig. 21, but one corner of the heel is engaged; 'and this leaves the shoe comparatively free to swing horizontally so as to vary the median angle of the breast e. the angle between the breast and longitudinal median line kof the heel). To assist in determiningl any desired median angle an adjustable side gage 159 is provided to limit the horizontal swing of the shoe. The gage 159 will be the subject of afull description hereinafter. y i j A left shoe is represented in Fig. 21; and the tripper is shown as engaging the left hand or outside corner of the toplift. lt is knife 195; and to swing the shoe upon sub- 4 i stantially that corner as a pivot until the proper median angle has been. described whereupon further swing will be obstructed by the sidegage 159.
lThe preceding description.v of the tripper 92 is applicable also to the other tripper 91 which acts uponthe outer corner of a right heel and cooperates with a side gage on the opposite side of rthe shoe. Since it is the f from its active position.
' per 92.
Referring to Figs. 8, 9 and l0, the tripper 91 is showndetached-- It comprises a `hook 93, adjustably connected by a screwthreaded rod v9-1 to a tripper shank 95, the
hook and shank being mounted to slide to-A gether' endwise in a'casing 96.` The casingv 96 is also arranged to slidev endwise with the hookand shank, in a tripper frame 97. The
frame 97 is mounted on a pin 98 (Figs. `7V
and l10) and said. pin is journaled in the presser foot 66. With this'arrangement, the holder 97 is adapted to rock with its pin 98 between the dotted-line inoperative position on the right of Fig. 7 to the full line operative position. As shown in Fig. 3, the lower end of the pin 98 is encircled by a coil spring 99, one end of which is connected ,to the holder 97 and the other end of which is fastened tothe lower extremity of the pin. Thus the spring 99 tends constantly to rock the entire tripper and its 'mounting, clockwise in Fig. 7 `that is to say, thetripper tends normally to move into operative position. j, ,Y
It will be understood that the trippers themselves are positioned and yoperate beneath the presser foot, as illustrated in Fig. 3,; but the pin 98 journaled in the presser foot, projects upwardly through the latter and constitutes the axial shaft of a yoke 100 fixed thereto (Fig. 3). By means about'to be described, the yoke 100 is rocked about the vertical axis of the pin 98, to turn said pin and move its associated tripper out of operative position; and thereafter the yoke is turnedin the opposite direction to permit the spring 99 to throw the tripper into operative position. Referring again to Fig. 3,`the `extremities of the yoke are connected by a stud 101, .to which is applied the powery K vnally (from left to right, and vice versa in Fig. 7), the trippers are thrown alternately into and out of operative position. ,y Also,
the main shaft 45.
at intervals, the shifter 103 occupies an intermediate position such .that neither tripper is in operative position. As shown in Fig. 4, `thetripper shifter 103 is arranged to slide endwise rectilinear'ly in bearings 104:, 105. The movements ofthe tripper shifter 103 Aare actuated from the main shaft.
Referring now/to Figs. 16A and 17, the shifter 103is actuated through the agency of a shifter cam 106, fixed upon an auxiliary shaft 107, which is driven through a gear 108, fast thereto, by a gear 109, fixed upon p l The ratio ofthe gears 108 and 109 is such that the auxiliary shaft rotates once whilev the main shaft rotates twice. The cam 106 actsv upon a roll 112, mounted upon a jcam lever 110, fulcrumed at 111 to the-,bracket 4:2., Pivoted to the cam lever110v is a shifterjrod 113, which (see-,F ig. j11) is connected at its ,upper` extremity with one arm of abell-crank 114 fulcrumed at 115 to a bracket 116on the machine frame. The vertical arm of the bell-crank v114 has a slot 117- into which projects a block 118, journaled upon a pin 119, fixed in the tripper shifter 103.- Thus, when the shifter-rod 113 is vertically. re` ciprocatedby the shifter cam 106, the tripper shifter 103 is reciprocated endwise horizontally to move the trippers alternately into and out of operative position.
By reference to Fig. 16, it will be noted that the shifter cam 106 h as arise 120 and a depression 121, the remainder of the cam kbeing a uniform dwell'.A The action of this cam, when communicated to the tripper shifter .103, will effect shifts between two opposite limits determined respectively by the rise and the depression on the cam; and in the intervals between the shifts ythe tripper shifter will occupy an intermediate position. Since the rise120 and the 'depression 121 are diametrically disposed on the cam 106, and since the auxiliary shaft 107 with the cam is rotated at uniform speed, it follows that the trippers will be moved into operative position in alternation at uniform intervals, one being withdrawn and another presented by each half revolution of the auxiliary shaft. When the machine has completed a breasting operation, it comes to rest with the camroll 112 engaging one or the other of the rise or depression 121 so that whenever a shoe is introduced to the' machine it will find one of the trippers in voperative position. `After the heel has been properly adjusted with relation to the breasting tool it is desirable that the tripper be withdrawn rin order to remove it from possible interference with the movement of the breastingtool; and to this end the tripper p cam 106 is so timed that its dwellbecomes operative soon after the machine startsand before the breasting begins, and thereby moves the vtripper shifter into intermediate position. This swings the recently acting tripper away from the heel and there holds it until, just as the machine stops, the shifter 103 ismoved farther to present the other l against a pin '122, mounted in the sliding block 7 6, as shown in Fig. 14. By this engagement with the pin 122, the hook 93-is restrained from entering completely into its operative position until the pin 122 retreats from engagementwith the hook, when the presser foot is seated against the tread of the heel. Thereupon, the hook 93 is moved over by its spring 99 and takes position in front of the heel breast.
The hook 93 ofthe tripper reaches its position in front of the heel breast while the shoe stands yet in its preliminary position.y It remains then for `the operator 4to drawthe shoe forward to operative position;
and in so doing the heel will, through the hook 93,'move the -tripper forward until, as will be presently described, the movement of the trippery vis finally arrested, thereby also arresting the shoe and as already described, determining in part the positionof the heel breast in relation to the breasting tool. In the specificmachine shown in the drawings the hook 93 is of such dimensions that it engages only the toplift 123 and, hence, the final varrested position of the hook determines the position of the toplift with relation to the breasting tool. This is preferable for the reason that the toplift is usually given substantially its finished form before application to the heel, and is located on the latter in the position which it is desired to have upon the finished shoe. Thus the toplift may serve in the capacity of a pattern, whereby the heel may be properly adjusted to the breasting tool.
Referring now to Figs. 8, 9.and 10, it will be observed that forward movement of the hook 93, as it accompanies the shoe to operative position ofthe latter, will also move the tripper-shank 95 endwise. This movement of the shank 95, during a portion of its extent, is utilized for throwing the clutch and starting the machine in a manner aboutV to be explained. 4
The shank 95 has an integral ear 125 (Fig. 10) which receives and slidesupon a stud 126, fixed to an ear 127 integral with the casing 96. A stop collar 126 on the stud 126 limits the movement of the ear 125-and consequently of the shank 95 to the right with relation to the casing 96. A spring 128 bears at one end against the ear 125 and, at its other end, against an 'ear 129 integral with t-he tripper frame 97; and this spring tends to move the shank 95 to the left i in Fig. 10 and to oppose movement'of the hook 93 as it accompanies the movement of the shoe. The spring 128 encircles a stud 138, fixed in the ear 129. Aibifurcated extension 135 of the casing 96 extends to the left in Fig. 8` and enters a slot'130 in acylindrical portion 131 of the vshank 95. lviounted in said `cylindrical portion so as to slide vertically therein is a pin 132, bearing near its lower xtremity a. collar 133, having a beveled cam surface 134. The cam surface 134 coperates with a similarly beveled surface upon the underside of the `bifurcations 135 of the casing 96. A spiral spring 136 is interposed between a nut 137 fast to the pin 132 and the top of the shank 95; and serves to hold the-cam face 134 yieldingly up against the coperating cam on the casing 96. During the movement of the shoe into operative position, the shank 95, carrying with it the cam 134, accompanies the shoe throughout its entire movement; while during the latter part of said movement the casing 96 is arrested, thereby causing the cam faces on the bifurcations 135 yto becomestationary while the cam 134-continues to move through a short distance. This continued movement of the cam 134 serves to depress ythe pin 132 against the tension of the'spring 136 and this downward movement of said pin-taking place just as the shoe reaches its final operative position-acts to throw the clutch and vstart .the machine. The arrest of vthe casing 96 referred to is effected through the agency of a lug 139, fixed inthe casing 96, which, during the forward movementof the casing abuts against a stop face on a plate 140, secured to theunder face ofthe presser foot 66. The plate 140, is showndetached in plan view in Fig. 20 (Sheet 6). The stop faces for thelugs 139 and 139 on the respective casin'gs for the trippers 91 and 92, are indicated at 140 and 1402. The plate 140 has also a curved face 1403. The latter has the same curve, as the breasting knife and, consequently, has the same curve as the breast of the heel when finally shaped. The pfate 140 is secured to the presser foot so as to be readily removable to be replaced by other plates, differently curved to suit various classes of work. In assembling a plate 140 with the presser foot, the operator may place the curved edge 1403 against the back of the knife and he may thus ascertain two important circumstances; that the plate tion between them.
It will be noted that the curved stop faces 140 and 1402 have characteristic shapes, such that a lug 139 will be arrested at di'erent stages of its travel according as it engages different parts of a stop face. As already explained, it is desirable that a heel, when in operative position, stand with a corner of its toplift approximately in the line 'corner beneath ythe Acurve of the knife, a greater distance than would be necessary .for
a narrow heel; and in order to insure that heels of varyingI widths shall be arrested when they have moved exactly the proper distances, the stop faces 140 and 1402are so shaped that ra tripperengaging a narrow heel will be arrested earlier in its travel, than would occur if it engagedra wide heel with a consequent greater lateral displacement of its lug 196 such as to contact with a different part of a face 140. In' this manner, the travel of each tripper is rendered variable to suit ythe requirements of heels of different widths. It is true of course that a tripper hook and its engaged heel continue to travel after a lug 139 has engaged a stop face 140', but this continued travel never varies since it is limited by contact of the ear 125 (Fig. 10) on the tripper shank 95 with the stop collar 126 on'the then stationary casing 96; and therefore any variation of the travel of the casing 96 effects a like variation in travel of the tripper hook and its engaged heel. When the ear 125 abuts Aagainst the stop collar 126, the entire trip-V per comes definitely to rest and thereby contributes to determine the'operative position of a heel in relation to the breasting tool.
As already. suggested, the movement of the slide 95 after the casing 96 has become stationary, serves to depress the pin 132 and thereby to throw the clutch and start the machine. Referring now to Figs. 3, 4 and 8, the lower extremity of the pin 132 is normally in contact with one end of a bell-crank 141, `[fulcrumed at 142 to the presser foot. When the pin 132 is depressed, as described, the bell-crank 141 is rocked contra-clockwise in Fig. 3. `Pivoted to the'bell-crank lever at 143 is a. plunger 144, seated in a. recess in the presser foot and encircled by aspiring-"145 tending normally to rock the bellcrank clockwise in Fig. 3 and to hold it in contact with the pin 132. Depression of the pin 132, however, rocks the bell-crank and moves the plunger 144 to the left'in Fig. 3, so that it pushes against and rocks a starting lever 146 (Fig. 4), fulcrumed at 147 to the frame of the machine. As shown in Fig. 4, the starting lever 146 is connected by a link 149 to the swinging end of a shipper yoke 150 (see also Fig. 11), which is journaled to rock on a vertical axis supplied by a pin 151 (see also Fig.11) mounted in ears 152, 152 on a vertivcally reciprocating tool actuating slide 204.
By this organization the yoke 150 is provided with vertical reciprocation in unison with the breasting tool slide; and upward movement of the yoke after the tool has completed the breasting 'operation is utilized for disengaging the clutch' and stopping the machine. Reciprocation of ythe link 149 rocks the yoke 150 on its vertical pivot. The
upper arm of the yoke 150V (Fig. 11) has an.
ear 153 which normally underlies one end of a shipper-rod 154, fulcrumed to the frame of the machine at 155. The opposite end of the shipper-rod lever 154 is connected by a pin 156 to the clutch 'shipper-rod 90. Evidently, when the lever 146 is rocked clockwise in Fig. 4 the yoke 150 will also be rocked clockwise in said figure', and thereby the ear 153 (Fig. 11) will be withdrawn from beneath the lever 154, releasing the spring 157 (Fig. 15) to elevate the shipperrod 99 and permit engagement of the clutch for starting the machine. To summarize During the forward movement of the yshoe from preliminary to operative position, a pin 132 is forced downwardly to rock the bellcrank -141 (Fig 3) contra-clockwise. This movement of the bell-crank 141 rocks the starting lever.146 (Fig. 4) clockwise and i thereby removes ear 153 (Fig.11) from benea-th the lever 154 to permitrspring 157 (Fig. 15) to elevate the shipper-rod 90.
` This permits the springs 87 to throw the clutch and start the machine. The manner in which the machine is automatically stopped after the desired breasting operation will be explained hereinafter.
Preferably the trippers are operative only one at a time and they each, when acting,
definitely position one corner of a heel in its proper relation to the lbreasting tool upon arrival of the shoe in V(')perative position. While this single means contributes to assist the operator in properly locating the shoe, it is preferred, as explained hereinbefore, to employ additional means whereby the swing of the shoe in a horizontal plane may be governed so as to determine the angle which the finished breast shall make with the longitudinal median of the heel. This preferred additional means is exemplified in the accompanying drawings by side gages 158 and 159, shows in Figs. 1, 2-and 13. In the particular illustrative embodiment shown, these side gages consist in stops arranged to be placed in position proximate the sole edge of a shoe7 so as to supply abutments against which the sole edge may contact. lWith an arrangement of this sort the shoe may be held against horizontal movement bv engaging it at two points to wit :'-at a breast corner and at a portion of the sole edge as shown in Fig.`21. W'hile a tripper and a side gage are not mutually indispensable, it is preferred that they cooperate as above described.
nately to accommodate alternate right and left shoes as they are introduced to the machine in the ordinary course of its operation. The 158 is intended to coperate with the left side of the sole of a right shoe; and the gage 159 isintended to coperate Awith the right edge of the sole of a left shoe .(see Fig. 21),. The gages are preferably substantially alike, and accordingly it Will suflice to describe in detail but one of them. The gage 158 comprises a holder 160, pivoted at 161 between ears 162, 162- depending from a bracket 163 secured to the frame of the machine. The gage moves upon its pivot 161-into and out of operative position, the latter being shown in dotted lines in Fig. 13. The immediate gaging device of the gage 158 consists in a linger164, laterally adjustable in a` slot 165 of the holder The character of this adjustment is such that when the gage finger 164 occupies the operative position indicated by dotted 'lines in Fig. 13, it may be adjusted hori- 1 zontally transversely .of the machine to vary the position determined by itfor a coperating sole edge. The holder 160is rocked about its pivot 161, to move the gage finger 164 into and out of operative position, through the agency of a tooth 168 engaging a co-acting tooth 169 on a rack bar 17 0, arranged to reciprocate endwise in the bracket 163. In like manner to that just described the side gage 159 has a holder 160 mounted on a pivot 161', and. an adjustable gaging finger 164. The latter is moved into and out of operative position by means of a tooth 169 upon the rack bar 170 engaging a recess 171 in the holder 160.
l/Vhen the rack bar 170 Ais moved toward ,the left in Fig. 18 the gage 158 is moved into the position indicated by dotted lines, and it thus occupies a position to engage the left hand edge of the sole of an inverted right shoe on the Work support. Vhen the rack bar'170 is moved rcversely toward the right in Fig. 13 the gage 159 will be rotated into an operative position corresponding to that of the gage 158 shown in dotted lines. These operations of moving one or the other of the gages into operative position take place preferably only at the eX- tremes of reciprocation of the rack bar 170; and normally the latter rests in an intermediate vposition in Which neither of the gages is in operative position. At such a time the gages may be held in the full line .positions of` Fig. 13 bv the engagement of their respective teethu with those of the 'i rack bar, the rack barbeing maintained in its intermediate position by spiral springs 1 72, 172, act-ing upon its opposite extremities. The rack bar 170 is moved from its intermediate vposition to one or the other of g the extremes of its reciprocation by mechanism presently to be described; and When so moved one ofits teeth will depart from engagement with the adjacent gage and Will be `no longer effectivev to hold` the latter in 1.
operative position.V To continue the gages in inoperative position, the pivot pins 161, 161 are encircled by torsional springs (not shown) each having its opposite ends secured respectively to the holders 160, 160
' and the frame ofthe machine in such manner that the spring tends constantly to rock the holders and their gage fingers out of operative position and to hold them as shown in Fig. 13.
l lars 174 and 175 so as to be movable laterally only in relation to the rod 48, in a horizontal plane. The slide '17 7 is moved thus hori- Azontally by means of a stud 178 (Fig..4)
carried upon theA tripper shifter 103, said stud projecting into a vertical .slot 179 in the slide 177. As the tripper shifter 103 is reciprocated to introduce the trippers altervnately into operativeposition the block 177 is similarly reciprocated. Secured to the slidingblock 177 is a Wedge 180 (Fig. 11), which, at one eXtreme of the horizontal movement of said block, engages While moving vertically with rod 48, a spring pressed lug- 181 mounted in a block 182 (Figs. 4 and 11) Which slides horizontally in Ways 183 on the frame of the machine. Pivoted to the block 182 is a bearing 185 inclosed in a slot 186 at one end of a lever 187 which is fulcrumed at 1.88 to the frame of the machine. The lever 187 has a sliding pivot 189 connecting it to a second lever 190 fulcrumedat 191 and having a second sliding pivot 193 by Which it is attached to the rack bar 17 0.
Referring` noW to Fig. 11-When the rod 48 is moved upwardly by depression of the tripper shifter 103 remains 4at the left hand extremity of its reciprocation in Fig. 4 the wedge 180 will remain in position to act `upon the lug 181 and accordingly each depression of the treadle during this state of aairs will tend to move the rack bar 170 toward the left. When, however, thetripper shifter 103 moves to the right extreme of its reciprocation (Fig. 4) it will carry' 182 in a direction opposite that'of its pre-A ceding movement and will oppositely rock the levers 187 and 189 so as to move the rack bar 170 toward the right in Fig. 4 to the extreme of its reciprocation and withdraw the side gage 158 from operative position and to introduce the side gage 159. In this manner, the operation of one or the other of the side gages may be made to depend upon the presence in operative position of the appropriate tripper hook, so that whichever of the latteris about to be used, the proper side gage to coperate therewith will be presented in operative position.
I-Ieretofore. the manner in which` the various adjustments of .the vwork are effected has been explained. It remains to consider the construction and mode of operation ofV a convenient form of breasting toolshown herein as a knife 195. j f f Referring to Fig. 34-the knife 195 has a holder 196, secured toa slide 241 by a clampV plate 242 held in place by a set screw 243X engaging a cap 223 carried bythe slide 241. The slide 241 is mounted immediately upon the breasting tool slide 59 by means of 'a vertical screw 198, which may be turned to adjust the slide 241 vertically by means of a pinion 199 and gear 200, the latter of which is formed on the hub cfa handle wheel .201, rotatable upon the stud 202 carried in the breasting tool slide 59. In practice, the knife 195 may become dulled, and when it is sharpened it is to some extent 'ground away and demands to be adjusted slightly to compensate for its decreased length. This is provided for by an adjustment independent of that of the slide 241 on' the plunger 59 sothat the compensating adjustment may be effected without changing the relation of the knife'to its actuating mechanism. This is accomplished by a slide 248 in ways 244 formed in the plimger 59. The lower end of the slide 248 bears against the upper end of the holder 196 and is reciprocalole vertically by means of a worm pinion 246 and a worm rack 247. The worm pinion 246 is journaled uponga stud 248 in ears 249, 249', on the slide 241. When the slide 243 is properly adjusted the knife holder 196 may be moved into contact there- VVprises a vertically moving head204, having ears 205 and 206, encircling vertical guide rods 207, 207 rigidly mounted in the frame.
The head 204 is reciprocated vertically by an eccentric 208 (Fig. 2) on the main shaft 45, having an eccentric strap 209 connected by a link 210 to a pin 211 mounted in the bottom of the head 204. As shown in Fig.
18 thebreasting tool slide 59 has ears 213 and 214 also mounted on the guide rods 207. Encircling eachof thevrods 207 is a spiral spring 215 interposed between an ear v 214 on the knife plunger 59 and an adjusting nut 216, which threads onto a sleeve 217 fixed to one ofthe ears 205 on the head 294 by means of a pin 219. A lock nut 218 is supplied for locking the adjusting nut.216
in adjusted position. Evidently, when thev head 204 is vertically-reciprocated it tends,-v through the agency of the springs 215 -to depressthe breasting tool slide .59; but if the descent of the latter be positively interrupted the springs 215 will yield to permit such arrest in spite of the continued descent of the head 204.
While the shoe stands in adjusted position preceding the actua-l breasting operation one of the tripper hooks engaging a corner of the toplift may be substantially in the path of the knife; and under these circumstances the tripper should be withdrawn before the knife descends far enough to strike it. This is provided for in the specific machine by so 110 timing the knife eccentric 208 and the tripper cam 106 (Fig. 16) that the latter enters upon its dwell and moves the tripperr shifter into intermediate position,'to withdraw the tripper before the eccentric has moved far 115 enough `materially to lower the knife. This withdrawal of the tripper permits it to move endwise rearwardly to its normal position and thereby disorganize the train of detaining mechanism which originally moved the 120 clutch controlling yoke 150 (Fig. 4) into inactive position to start the machine, and there held it out of engagement with the shipper lever 154 (Fig. 11). In this manner the yoke 150 is freed to the action of the 125 spring 149 (Fig. 4) which rocksthe yoke -back to its normal position shown in Fig. 4.

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