US1307820A - Ments - Google Patents

Description

A. E. JOHNSON. I MACHINE FOR OPERATING 0N SOLES.

unwmwumsusem s. 191a. RENEWED ,o cT. 18.1918.

1,307,820. Patentd June 24,1919.

UUNITED STATES PATENT onmon,

ALBERT E. JOHNSON, 015 BEVERLY, MASSACHUSETTS, ASSIGNOR, BY ASSIGN- lVIENTS, T UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY,

A conronnrronor NEW JERSEY.

MACHINE FOR OPERATING ON SOLES.

Specification of Letters Patent. Patented J 11116 24,1919.

J Application filed. Septen1be1'25, 1916, Serial No. 122,076. Renewed October is, 1918. Serial No. 258,758.

Z all whom it may concern: e

Be it known that I, ALBERT E. JOHNSON,

a citizen of the United States, residing at Beverly, in the county of Essexfand State of ll Iassachusetts, have invented certain new and useful In'tprovements in Machines for Operating on Soles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This mventlon relates to machmes for 0 aeratin on the mar 'mal ortlon of soles and more particularly to machines for offsetting themarginal edge of turn soles. The

latteroperation is known as turn sole m0ldmg. i a

The operation of turnv sole molding is performed for the purpose of properlyypresenting the shoulder to the needle of the inseam sewmg machine. Remembering that the area of the bottom of a last for turn' if themolded sole is to properly fit the last.

As the edge of the last follows the line of the shoulder it is obvious that the angle of the molded edge should come on the grain side just opposite the shoulder, in which event the sole lies flat on the last bottom with its feather bent at an angle over the last-edge with the shoulder nicely opened up to receive the inseam stitches. Should v e the angle referred to be so formed that it lies within theedge of the last, much of the mold is taken out in the performance of the lasting operation which flattens the sole down on the last. As a result of this improper molding, at the time the inseam is secured the shoulder is in much the same 7 f position relative to the feather that it was before the molding operation and the lnseam sewing operator has great dilficulty in keep- :ing the needle from striking through the j edge of thesole, which disaster, in splte f of efforts, frequentlytakes place.

One object of the present'invention is to so hold and operate on the sole as it ad-. 1 vances through the 'molding machine that the disadvantages of the prior machines are overcome, thus'insuring an aecuratefitting of the solo on the last and a retention of the molded offset after lasting; In accordance with th s object a feature of tlifllllVGIltlOIl contemplates the provisionof novel means for holding the sole rlgldly in position between the moldingrolls so that the angle formed by the offset of its margin may be continuously and accurately spaced from its edge. p e p a The turn sole molding machines now used commercially have another serious disadvantage which often results in breaking the grain. This is due to a shifting of the sole relatively to the molding rolls during the feed of the sole through the machine resulting from the insecure grip Whichthe rolls have on the sole, and a too heavy pressure applied. to the molding rolls usedin an e cleavor to overcome this defect.

Another object of the invention is to overcome the marring of the sole bottom due to grain breaks and the like which can later be eradicated only by scouring down; through the depth of the break. Intaccordance With this object a feature of the invention contemplates the provislon lnthe machme of a novel arrangement of the parts for feeding 'j the sole which provides for a-feeding grip on the edge of the sole and permits a lightening of the injurious pressure heretofore used.

The invention further improves existing j sole molding machines by so arranging the molding and sole feeding rolls that the edge of the soleis maintained at its full thick ness, the full depth of the shoulder ispre- 'served, andthe channel is properly opened for the reception of the inseam, all as will be made clear from the following description.

If the turntsole is to be reinforced, in the manner disclosed and claimed in my prior Patent No.1,200,111, October 3, 1916,-the manner in which the channel is opened is of particular importance. For reinforced work care must be taken to set the flap in such a positi on that its tendency to drop toward its original position in the channel is overcome. Otherwise in applying the sticky reinforcing fabric it adheres the outer surface of the flapand prevents the tools of the reinforcing, machinefrom workmg the fabric downFinto the channel. The

sole should be so fitted that the inner surface of the flap, and not its outer surface, is exposed to the reinforcing fabric, leaving thechannel well opened to'receive the reinforcing tools. A feature of the present invention insures that the flap will be opened and set in a position curled outwardly toward the margin of the sole to expose its inner surface.

To the accomplishment of these objects and such others as may hereinafter appear, as will readily be understood by those skilled I in theart, the invention comprises the features and combinations of parts hereinafter described and particularly pointed out in the appended claims.

Inthe' accompanying drawings, illustrating the preferred form of'the tools for operating on the marginal portion of the sole, the said tools are shown applied to the sole molding machine of Letters Patent to E. S. Harris, 'No. 343,453, dated June 8, 1886. Tn said drawings, Figure 1 shows a longitudinal, vertical section of the said Harris machine, with the present improvements embodied therein 5 and Fig. 2 shows a side elevation of the improved tools in detail, with a sole between them.

In the illustrated embodiment of the invention the particular type of turn sole 10, used for illustrative purposes, is produced by passing a tempered blank through a channe'lln machine, such as is illustrated and 'describedin United States Letters Patent tdWilliam C. Meyer, No. 984,773, dated I February 21, 1911, said machine being first provided with suitably shaped knives. This turn sole forms the subject-matter of my co- I i pendingapplication Serial No. 669,568, filed January 5, 1912, patented October 3, 1916, No. 1,209,114 of which the present application is a continuation in part.

The channeled, blank is then passed through my novel molding and lip setting machine illustrated in said patent and in the accompanying drawing, to ofi'set, or bend back, its marginal portion. This machine is provided with a set of coperating molding rolls comprising a sole supporting and bending roll 12, a channel flap opening roll 14, and an edge molding roll 16.

Referring to Fig. 1 illustrating the construction of said Harris machine, the channel flap opening roll 14 is secured to the forward end of a shaft 26 which is journaled in a horizontal arm 28 pivoted at its rear end to the machine frame 30. The edge molding roll 16 is secured to the forward end of asecond shaft 32, parallel to the shaft 26 and journaled in the frame 30 below the pivotedarm 28. Power for rotating said shafts. is applied through a large gear 36, journ'aled on a stud 38 in the frame, which -m'eshes'with asm'aller gear 40 on the rear end of the shaft 32. The shaft 26 is driven from the shaft 32 by intermeshing gears 42 and 44, one on each shaft. These gears are preferably so proportioned as to drive the setting and edge molding rolls at the same peripheral speed, but said rolls may have different peripheral speeds. The gear 36 is shown as rotated by a hand crank 46, although power means may be used if desired.

While operating the machine the pivoted arm 28 is held down, so that considerable pressure is exerted on the solo by the tool 14, by a spring 48 mounted in the manner illustrated, on a rod 50 which depends from the arm and passes through a bore in the lower part of the frame. Pressure is also exerted on the grain face of the solo by the sole supporting and bending roll 12 which is rotatably mounted in the upper end of a vertical arm 52, pivoted at its lower end on the frame. This arm is held yieldingly toward the rolls 14 and 16 by an expansion spring 54, seated in a socket in the frame and exerting pressure on a collar at the inner end of a rod 56 connected, at its outer end, to the arm 52. A stop 58 may be mounted in the frame to limit the inward movement of the tool 12 when no work is in the machine.

The tools may be separated to enter and remove soles by moving the arms 28 and 52 upwardly and outwardly, respectively, about their pivots. To this end a push rod 60 is slidably carried in the frame, its forward end abutting against the arm 52 and its rear end adapted to be engaged by a pusher 62, pivoted on the frame, having an arm bearing on the upper side of a collar 64 on the rod 50. A lever 66, centrally pivoted on the frame, bears with its forward end beneath a transverse pin 68 in the rod 50 and has a treadle rod 70 attached to its rear end. On depressing the treadle (not shown) attached to the treadle rod 70, the rod 50 is raised, against the force of the spring 48, which lifts the arm 28. At the same time the pusher 62 is actuated to advance the push rod 60 and swing the arm 52 outwardly againt the force of the spring 54. On releasing the treadle the springs 48 and 54 return the rolls 14 and 12 to operating position relative to the roll 16, as shown in Fig. 2. The bending roll 12 has a circumferential face that engages the grain side of the sole near its marginal edge, the longitudinal curvature of which may be modified for any desired extent of bending, or dishing, of the sole. The channel flap roll 14 engages the channel of the sole opposite the roll 12 and acts to compress the sole against the roll 16. The edge molding roll 16 for the type of turn sole illustrated, has an the machine frame while the rolls 12 and 14 With this construction the marrolls 12 and 14 against the different faces of the edge molding roll 16, the edge of the sole being pressed into the angle formed between the edge face 18 and the side faces 20, 22 and 24. This angle, in conjunction with the angle on the face of the roll 12, determines the shape and location of the offset edge formed on the sole.

As illustrated, the rolls 14 and 16 are constructed to open the channel and set the flap in themanner required for reinforced work. The channel flap roll 14 is provided with a head 13, preferably of disk form, which enters the channel and acts as a plow. Just back of the head 13 the neck 15 of the roll is of smaller diameter providing a concave formation which rolls the flap outwardly to expose its inner surface. 1 The edge molding roll 16 is provided with a convex surface 17 complemental to the curve 1,200,114, October 3, 1916.

of the neck 15, preferably in the form of a circumferential head. The bead 17 is formed attheend of the shoulder setting face 24 and bears on the outer surface of the flap.

The cooperative action of the roll constructions just described causes the flap to be molded to a position curled outwardly away from the channel, leaving the channel eX- posed for the application of reinforcing fabric,as shown in Fig. 7 of said Patent No.

During the edge molding operation the margin of the soleis compressed longitudi nally between the face 18 of the roll 16 and the roll 14,*and also transversely between the roll 12, and the roll 14 and the faces 20, 22 and 24 of the roll 16. By thiscombined compression the bent fibers of the sole are so set that the molded shape becomes permanent until, after having been applied to the shoe, the sole is tobe beatenout. Due to the peculiar configuration of the molding The edge compressing face 18 of the roll 16 is preferably, although not necessarily, provided with serrations which act to grip and feed the sole during the moldingopera tion. It will be noted that the edge of the sole is rigidly held between the rolls 12, 14 and 16, so that if the edge is thin it will be supported with sufficient rigidity to enable the serrations on the face 18 to feed it. In this manner a sole with a thin feather may be efficiently fed by its edge and at the same time the compression of the sole edge against the face 1.8 assists in molding 1t.

While the edge compressing face is preferably serrated to assist in feeding the sole, it will be found in practice that the pres sure alone of the molding rolls will act to feed many types of soles.

1 While the machine as illustrated in the drawing is particularly adapted for offsetting the edge and setting the feather lip of a particular type of turn sole, the invention is not limited to treating this type of sole, but is equally well adapted for-treating other types of soles including regular turn soles or solid and reinforced insoles. Similarly the device for feeding the solo by engagement with its edge may also readily be applied to other sole fitting machines for performing such operations as lip setting, reinforcing or channeling.

The nature and scope of the invention having been indicated and the preferred form of the invention having been specifically described, what is claimed as new is:

3 1. A machine for offsetting the marginal portion of soles, having, in combination, co-

operating molding rolls for engaging opposite sides efthe solencar its margin; a roll having angularly arranged faces for enga ing one side and the edge of the sole; means for pressing saidrolls together to mold the sole into the angleformed by said faces;

a movably mounted bending roll for operating on the side of the sole opposite the side engaging face of the edge molding roll; a movably mounted channel. pressing roll opposite the edge engaging face of the edge molding roll; and means for pressing the bending and channel rolls toward. the faces of the edgemolding roll to offset the sole edge. 1

3. A machine for operating on the marginal portion of soles, having, in combination, cooperating rolls for treating the marginal portion of the sole; and means acting on the edge of the sole to advance the sole through the machine.

4. A machine for operating on soles, having, in combination, cooperating sole pressing rolls for treating the marginal portion of soles, one of said rolls being constructed and arranged to operate on the edge of the sole for feeding the sole during the treating operation; and means for driving the rolls.

5. A machine for operating on the marginal portion of soles, having, in combination, cooperating molding rolls for engaging opposite sides of the sole near its margin, one of said rolls being constructed and arranged to engage and compress the edge of sale,- the face of the latter roll incontact soles, having,

(engaging the edge of the one roll being roll, a sole supporting and bending roll, an

edge molding roll, having an edge compressing and sole feeding face, and means acting through one of said rolls for pressing the sole against said face of the edge molding roll.

' 7 A machine for molding channeled turn in combination, cooperating rolls for engaging the margin of the sole at opposite sides of the channel flap, said roll at the outer side of the flap having a portion sole, and means rolls for exerting held between said acting. through one of said pressure on the sole stock rolls.

8.. A machine for molding channeled turn soles, having, in combination, an edge molding roll having three faces for engaging the shoulder, the feather, and the edge of the sole, and means for holding the sole under pressure in contact with all of said faces.

9. In a machine for operating on the marginal portion of soles, cooperating sole pressing rolls for operating on said margin; one roll being provided with a head which enters the channel to openthe flap and with a concaved neck, of smaller diameter than the head, within which the flap is rolled; and the other roll being provided with a circumferential bead which enters the curve of said neck and molds the flap therein, causing it to be set in a position curled outwardly toward the margin of the sole.

10. In a machine for operating on the marginal portion of soles, cooperating sole pressing rolls for operating on said margin;

provided with a circumferential projection, in the form of a narrow bead,

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which bears on the outer side of the channel flap; and the other roll being provided with a circumferential depression, complemental to the bead, which bears 011 the inner side of the channel flap, the cooperative action of said rolls being to mold the flap in a position curled outwardly away from the channel.

11. In a machine for operating on the margin of a channeled sole, said channel being produced by a downward and outward cut, a pair of rolls for operating on said margin, said rolls having compleinental convexly and concavely curved circumferential surfaces which engage the outer and inner sides of the channel flap respectively and cooperate to mold said flap on a curve turned outwardly toward the margin of the sole.

12. A machine for operating on the marginal portion of soles provided with a channel flap produced by a downward and outward marginal out having, in combination, a flap setting roll having a concave circumferential face arranged to engage the inner surface of the flap and curl it outwardly to ward the margin of the sole, means engaging the outside of the flap cooperating with said roll to set the flap in such position, and means for supporting the sole with its flap between said cooperating members.

13. A machine for operating on the marginal portion of soles provided with a channel flap produced by a downward and outward marginal out having, in combination, cooperating flap-setting members engaging the inner and outer surfaces of the flap constructed and arranged to mold the flap into a position curled outwardly away from the channel, and means for supporting the sole 1tyith its flap between said flap-setting memers.

ALBERT E. JOHNSON.

Commissioner of Patents,

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