US1662254A - Lasting machine - Google Patents

Description

March 13, 1928.

A, F'. PYM

LASTING MACHINE Filed Feb. 3. 1926 2 Sheets-Sheet l A. FQ PYM March 13, 1928.

LASTING MACHINV 2 Sheets-Sheet 2 Patented Mar. 13, 1928.

UNITED STATES A 1,662,254 PATENT OFFICE.f

ARTHUR E. PYM, OE swAMPSoOTT, MAsSAoHUsETTS,` ASSIGNOR To UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OE NEW JERSEY.

LASTING MAOHiNE.

Application led February 3, 1926. `Serial` No. 85,680. i

This invention relates to lasting machines, and more particularly to means for 'lasting the toes of shoes. The invention is herein illustrated in its application to a lbed-lasting machine ot' the same general type `as that shown and described in United States Letters Patent No. 1,018,477, granted on February 27, 1912, upon an applicationot Matthias Brock, but it is to ,be understood that the invention is not limited to machines Ot the particular type illustrated inthat patent.

In lasting machines that include .in their Organization means for wiping the-upper heightwise of the toe, i. e., for upiviping the upper, the toe Wipers during-'the upwiping Operation Should follow as closely las possible the heiglitwise contour of the sides of the toe of the last, so as to apply effec-v tive upwiping pressure to the upper. `As lasts are positioned in bed-lasting machines, the angular relation of the Sides of the toe to the machine usually varies with rights and letts, and'also frequently with different styles of lasts, so that satisfactory 'results require a similar variation in the direction of the upwiping movement of the Wipers.

In accordance with my observation the heightwise contour of the sides of the toe in lasts of different Shapes'bears such arelation to what may be conveniently termed the lateral Slope of the bottom ot the torepart, that is, the Slope represented by straight lines across the toe joining the v'Opposite edges of the last bottom, that this slope may best be used for reference in determining the proper direction of the upiviping movement.' The present invention accordingly provides means for determining the direction ot the upWipe by the lateral slope of the bottom of the forepart of the last.v In its application to machines of the type illustrated, having means for Vadjustably tipping thetoewvipers to conform to the lateral Slope ot the bottom ofthe orepart, the invention furtherprovides connected means for thus adjusting the Wipers and Jfor simultaneously determining the direction of their upwiping movement, the construction hereinl slioiv'n being such that the direction of the upwipe, in any position of the Wipers, is Substantially' perpendicular to the direction in Which the Wipers entend laterally of the last.

not'only'for differences between right land Since it is the practice to, adjust the,` toe wipers in themanner above mentioned,

left lasts andbetween .different styles of' lasts, but also in accordance with such small variations as there may be inthe positioning of different lasts ot' the same shape in the machine, substantial insuranceis thus afforded that the direction of the upivipe Will bear substantially the same angular relation to the lateral slope of the bottom oi the forepartin di'lerent laStS.` l/Vith the Wipers so adjusted that they extend laterally in a direction substantially parallel to the lateral slope of thebottom of the 'fo-repart, it -folloivs that the direction out the upwipe rwill be substantially perpendicular to that slope, a relation which my experience indicates to be the best for the results in View. A further advantage of the constructionshoivn is that the operator oi'i' the lasting machine is not required to give attention to anyy adjustment other than heretofore in the use of such machines.y

The inventionuiillV n'oiv be more particularly described by reterence'to the accompanying` drawings and thereafter pointed out in the claims; 4 f `In the drawings,

Fig. 1 is a View in toe-lasting end of a machine of vthe type Shown kin thepreviously mentioned Brock patent;

Fig. 2 is a View on a larger Scale in lefttro-nt elevation oi the hand end elevation oi port-ions of t-he ma-` chine, with parts in section;` f

Figj is a vperspective View of a portion of the mechanism for determininor the path of the upwiping movement of the toe Wipers; Fig. A shows in greater detail a portion of the structure shown in Fig. 3; and F ig. 5 is a view of va shoe and associated parts o1 the machine, partly in elevation and partly in section on the yline V-V of Fig.' '1, indicatingalso by dotted lines a cross-Section of the'iorepart of thelastto show more clearly the relation of the sides herein shown). There is also provided a holddown 1t for engaging and clamping the Vtorepal't of the shoe upoll the toe rest 12. rl`he toe-lasting mechanism comprises toeembracingr wipers 18 wllicll are lllovable upwardl v alld downwardly b v means ot a vcrtieally lnovahle support 2t) connected by a lillk 22 to a double-acting treadle J-t. The wipers are advanced and closed by lncans of a hand level' :26. lt will be understood that, wllile holding the wipers closed about the toe by means of the lever 26. the operator raises tllelll b v means ot' the treadle 24 to wipe the upper upwardly over the elld and sides of the toe portion ot the last to the edge ot the insole. and thereafter advances alld closes tlleal inwardly over the bottom of the last. to wipe the upper over the insole, after which he may increase the downward pressure of the wipers upoll the upper by reverse movement. of the treadle.

Upon the support 2() tllere is mounted a slide 28 movable by nleans of a lland-wlleel 3() to adjust the toe wipers 18 lengthwise of the shoe. Upon the slide 2S is a slide 32. controlled as hereinafter explained, for imparting to the toe wipers, ill the vertical movement of the support 20. movement relatively to said support ill directions laterally of the shoe. Pivotallj' mounted at- 3-1 on a plate wllicll is carried by the slide 3Q is a holder 3G adjustable by means of a Screw 3S and a crank -1-0 to tip the wipers lengthwise of the shoe to conform to the lengthwise slope ot the bottom of the i'ol'epart. In the holder 3G is a sleeve 4:2 which carries the toe wiper head Maud isadjustableabout an axis extendingT lengthwise of the Shoe to tip the toe wipers laterally to conform to the lateral slope of the bottom ot' the forepal't. The sleeve -tl has thereon a lul;r 46 engaged by a volvo 1S which is movable by means ot a screw 5t) and a crank 52 to tip the wipers laterally. 'l`he parts herein shown atl'ording:lr provision for the abovementioned and other movements ol the wipers al'e substantialljv in prior nlachinos.

The slide 22 is provided. at the rear. with lugs -l having`r interior bearings and openings below the hearings to co-operatc witll lnecllallisnl lor determining the path or direction ot the upwiping lnovement of the wipers. There are mounted within the lugs 5t a pair of sleeve members 56 having therein rectangular slots to embrace a guide comprising a normally stationarjT rectangular shaft .38, thc members 5G beine secul'ed together b v tie rods (30 and havingT fastened between them b v the same tie rods a block 62 which extends downwardly below the members 56 and has a slot which serves as an extension of the slots in said members. The rectangular shaft 58 is mollnted at its ends for turning movement. and it will be understood that as this shaft is turned. the members 5G and (3:2 are turned with it. It the shaft 58 so positioned that its opposite side faces are vertical, or parallel to the direction otl movement ot the nlaill wiper support 20, no movement laterally otthe shoe will be imparted to the slide 2);! as the wipers al'e lnoved upwardly` and the path of the upwiping movement ot the wipers will therefore he vertical, as nla \v sometimes be desired in operatin;r upon shoes nlade on so-called straight lasts. On the other hand. if the shaft 5S is turlled so that its sides al'e inclined to the vertical in one direction or the other, its guiding action on the members 56 and G2 will result ill a movement of the slide 3'2 laterally of the shoe. so that thc wipers in their upwipingr movement will artualljv follow a path which is correspondingly illclincd.

For purposes of this invention the guiding shaft 58 is arranged to he adjusted to determine the path or direction ot the upwiping movement o t the wipers by the same means whereby the wipers are adjustably tipped laterally of the shoe to position them in proper relation to the lateral slope ot' the bottom of the t'orepart o t the last. liv ret'- erence to Fig. 2 it will be seen that the wiper-adjlistingr screw 50 has fast thereon a pinion 61 ill nlesll with a pinion (St'on a shaft 68. The shaft (i8 is connected by a universal joillt 70 to a telescopic shaft 72 the two parts of which al'e connected together b v a spline T-l. and the shaft 7:2 is connected b v a universal joint T6 to a worm-shaft TS mounted ill hearings at the base ot the machine. The worm on the shaft: 7S engages and operates a toothed sector St) connected h v a crank arln SQ and a lilik Si to a crank al'm Sti on the rectangular shalt 5H. These connection-Y are so arranged that when the wipers In' are horizontal. as far as tippinf.r movement la!- erally of thc shoe is concerned` the oppo. site sides of the shaft 5S are vertical, .so that upwiping movement of the wipers will be in a vertical direction. (ln the other hand. any lateral tippingr movement of thc wipers in either direction, to briner them into a position in which they extend laterally in a direction substantially parallel to the lateral slope of the bottom ot" thrl forepart of a right or a left last, is accompanied by a turningr movement, in equal degree and in the appropriate direction, of the shaft 58. In all positions of adjustment of the wipers. whether for right or lett shoes. for different styles ot shoes, or simply for variations ill the positions of different shoes. there is thus insured a uniform angular relatioll (as herein shown a right angular relation) between the direction of the upwipingT movement ot the wipers and the direction in which the wipers extend laterally of the shoe, and there will accordingly be a Slt) substantially uniform angular relation, in operating upon different shoes, between the direction of the upwipe and the lateral slope of the bottom of the forepart of the last. rlhe direction of the upwipe is thus determined directly by reference to conditions 'at the forepart oi' the shoe, where the wipers are to operate, and without requiring of the operator ot the lasting machine any adjustment other than he has been accustomed to make heretofore.

Having described the invention, what I claim as new and desire to secure by Iletters Patent of the United vStates is l. In a machine of the class described, the combination with last and shoe positioning means, toe-embracing wipers, and means for imparting to said wipers upwiping movement in a variably predetermined direction heightwise ot the toe oi the shoe, of'mechanism for determining the direction of the upwiping movement of the wipers by the lateral slope oi the bottom of the forepart of the last.

2. In a machine of the classdescribed, the combination with last and shoe positioning means, toe-embracing wipers mounted for tipping movement to conform to the lateral slope of the bottom of the forepart of the last, and means for imparting to said wipers upwiping movement heightwise of the toe of the last, of mechanism adjustable to vary the direction of the upwiping movement oi' the wipers, and means connected to the wipers for adjusting said mechanism in accordance with the position of the wipers.

8. In a machine of the` class described, the combination with last and shoe positioning means, of toe-embracing wipers movable heightwise of the toe of the shoe to upwipe the upper and adjustable about an axis extending lengthwise of the shoe to position them in proper relation to the bottom of the forepart of the last. and a single means for thus adjusting said wipers and for simultaneously varying the 'direction of their upwiping movement. i

4.-. In a machine of the class described, the combination with last and shoe positioning means, toe-embracing wipers, and means for imparting to said wipers upwiping movement heightwise of the toe of the shoe, oi' means for adjusting` said wipers about an axis extending lengthwise of the shoe, a device adjustable to determine the direction of the upwiping movement of the wipers, and connections between said device and the wiper-adjusting means for adjusting said de vice simultaneously with the wipers.V

5. In a machine of the class described, the combination with last and shoe positioning means, toe-embracing wipers, and means for imparting to said wipers upwiping movement heightwise of the toe of the shoe, of means for adjustably tipping said wipers to incline them laterally of the shoe in proper relation to the bottom of the forepart of the last.y and controlling mechanism adjustable with the wipers and arranged to direct their upwiping movement in a path bearing the same angular relation to the lateral inclination of the wipers in all positions of their adjustment.

6. In a machine of the class described, the combination with last and shoe positioning means, of toe-embracing wipers movable heightwise of the toe of the shoe to upwipe the upper and adjustable about an axis extending lengthwise of the shoe to position them in proper relation to the bottom of the orepart of the last, and means for insuring a uniform angular relation in all positions of adjustment of the wipers between the direction of their upwiping movement and the direction in which they extend laterally oi' the shoe. v

7. In a machine of the class described, the combination with last and shoe positioning means, of toe-emlnacing wipers adjustably mounted for tipping movement laterally of the shoey and also movable heightwise of the toe to upwipe the upper, and means'lfor insuring that in all positions of the wipers their upwiping movement will be in a direction substantially perpendicular to the `direction in which they extend laterally of the shoe.

8. In a machine of the class described, the combination with last and shoe positioning means, of toe-embracing wipers movable heightwise of the toe of the shoe to upwipe the upper and mounted also for tipping movement to position them in proper relation to the. bottom of the orepart of the last. and means controlled by the tipping of the wipers for determining the direction of .their upwiping movement.

9. Ina machine of the class described, the combination with last and shoe positioning means, of toe-embracing wipers, means for adjustably tipping said wipers laterally of the shoe, a wiper support movable heightwise of the shoe to cause the wipers to upwipe the upper and relatively to which the wipers are bodily movable laterally of the shoe, a guide koperative in response to movement of said support to move the wipers laterally of the shoe, aid guide being adjustable to determine the direction and the extent of such lateral movement of the wipers, and connections between said guide and the wiper-adjusting means for adjusting the guide with the wipers. f f

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

,ARTHUR F. PYM.

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