US1009721A

US1009721A - Upper-creasing machine.

Info

Publication number: US1009721A
Application number: US61863211A
Authority: US
Inventors: James Cavanagh
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1911-04-03
Filing date: 1911-04-03
Publication date: 1911-11-28
Anticipated expiration: 1928-11-28

Description

J. CAVANAGH. UPPER CREASING MACHINE. APPLICATION FILED APR. 3, 1911.

1 ,009,721 Patented Nov. 28, 1911.

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J. CAVANAGH.

UPPER CREASING MACHINE.

APPLIGATION TILED APR. 3, 1911.

1,009,721. Patnted Nov. 28, 1911.

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UNITED STATES PATENT OFFICE.

JAMES GAVANAGI-I, 0F BOSTON, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATER-SON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

UPPER-CREASING MACHINE.

Specification of Letters Patent.

Patented Nov. 28, 1911.

To all whom "it may concern:

Be it known that I, JAMES GAVANAGH, a citizen of the United. States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain Improvements in Upper-Creasing Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines for use in the manufacture of shoes, and in particular to machines for shaping the upper to the marginal portion of an innersole which is provided with a shoulder, or lip.

In the manufacture of Goodyear welt shoes the upper is stretched and made to conform to the shape of the last and is wiped in by the lasting instrumentalities and laid upon the margin of the innersole, the upper being then secured in lasted position along the sides and around the heel by the usual lasting tacks which are driven through the upper, innersole and last, and usually being retained about the toe by a binding wire. lVhile the wipers of the lasting machines commonly in use operate fairly well to place the margin of the upper against the lip, it is found that their action is not suliicient to impart to the leather such a permanent set as to cause the margin of the upper to be molded against the lip, in order that the welt may, in the subsequent operation of attaching the welt, innersole and upper together, be laid as flatly as possible against the upper. It has accordingly been found desirable, especially in the manufacture of the better grades of shoes, to provide means, subsequent to the lasting operation, for forcing the margin of the upper against the, lip in such manner as to cause the upper to remain permanently creased or set to the the formation of a crease which agrees with the angle at the junction of such feather edge and lip.

Another important feature of the invention consists in providing in connection with the upper creasing or shaping means referred to, an upper blocking tool so constructed and arranged as to act upon the upper at the side of the shoe and at or adja cent to the shoe bottom, in such manner as to shape it to the side of the last and remove all wrinkles and irregularities in the upper. In the illustrated embodiment of the inven' tion the upper creasing means consists of a tool shaped to enter the angle formed by the feather edge and lip of the innersole, together with means for applying to such tool a series of percussional impulses in rapid succession. The tool is preferably in the form of a disk or wheel which is mounted to rotate freely while in contact with the shoe, whereby it may be made to easily follow the curved edge of the shoe while re maining in engagement therewith as the shoe is moved by the operator to present successive portions to the action of the tool. Preferably, also, the blocking tool referred to is in the form of a wheel or disk which is mounted for free rotation upon the same support that carries the upper creasing tool, and has its work-engaging edge so arranged. relatively to the edge of the creasing tool as to operate upon the adjacent portion of the shoe upper in order that said tools may cooperate in forcing the upper snugly against the lip of the innersole, and also against the side of the last, to produce a sharp and well defined edge.

Another feature of the invention in this connection consists in supporting the blocking tool for yielding movements relative to the creasing tool in a direction transverse to the edge of the shoe. This permits the operator to so vary the relation of the peripheral edges of the two tools that the blocking tool may always be caused to bear against the upper at the shoe edge with the appropriate pressure, irrespective of the distance of the lip from the edge of the sole which determines the position of the periphery of the creasing tool relative to said edge.

Other features of the invention, including important details of construction and combinations of parts, will be hereinafter more particularly described, and claimed.

In the drawings: Figure 1 is a View in side elevation of a machine embodying this invention, and showing a portion of a shoe in position for operation thereon by the tools; and Fig. 2 is an enlarged view of the machine, in front elevation.

The numeral 3 indicates the upper portion of the main frame of the machine which supports bearings for a shaft 5, having thereon a loose pulley 7 and a tight pulley 9. In the machine illustrated, a belt-shifter 11 is pivoted to the frame 3 for use in transferring a belt, which may receive power from a suitable source, from the loose to the tight pulley, or vice versa.

The frame is apertured to receive a pivot bolt 10 to the opposite ends of which are secured the rear end portions of a U-shaped rocker arm 12, which arm is thereby supported for vertical movement about the bolt 10 as a center. The forward portion of the arm 12 has a downwardly extending boss 14 through which is extended a rearwardly inclined bore to receive a bolt 16. The outer end of the bolt 16 is preferably threaded to receive the nuts 15, which secure it to the boss, and the inner end of the bolt extends beyond the boss and is provided with a collar which supports the creasing tool 18 in a manner to permit the tool to turn freely thereon. The tool 18 is provided with an annular rim or extension 20 which is shaped to press the margin of the upper into close engagement with the lip of an innersole and also with the feather edge, or that portion of the sole margin which surrounds and extends outside of the lip.

The arm 12 supports a block 22 which is provided with a forwardly inclined bore to receive a rod 24, which freely slides in said bore. The lower portion of the rod 24 is provided with a head 26 having a bore within which is a bolt 28. The inner end of this bolt is preferably threaded to receive nuts 30, which retain the bolt in the head 26, and the outer end of the bolt extends beyond the head and is provided with a collar which supports a freely rotating wheel 32, constituting a blocking tool. The upper end of the rod 24 extends beyond the block 22 and has a rigid angular extension 34, and a stop screw 36 is in threaded engagement with a bore in said extension and projects beyond the extension to engage the .upper surface of the block, the stop screw carrying a set-nut to bear against the block and lock the screw in adjusted position. A tension spring 38 has one end connected with the block 22, and its opposite end connected with the extension 34, and serves to yieldingly project the blocking tool 32 forwardly in a direction to engage a shoe, a distance which will be limited by the amount of projection of the stop screw 36 beyond the lower surface of the extension 34.

Secured to the forward portion of the frame and surrounding the shaft 5 is a casing 6 which may contain a suitable hammering or beating device for applying to the arm or carrier 12, and hence to the

tools

18 and 32, a series of rapid vibrations to cause said tools to'operate upon the work. As herein shown, such device comprises a rotary drum 40 fast on the shaft 5, and carrying an annular series of loose rollers 42. The casing 6 carries a guideway 44 within which is a vertically sliding bar 46, the upper end of the bar being arranged in the path of the rollers 42 as they are rotated by the drum. The lower end of the bar 46 has bearing upon the upper surface of an annular boss projecting from the forward part of the arm 12. A spring 45 is shown as connected at one end with a stud 48 which extends laterally from the arm 12, and its other end is fastened by a clamping nut 50, or other suitable means, to the main frame 3 at a point above the stud 48, the spring being normally under suflicient tension to hold the tool-carrying arm up against the bar 46. An adjustable stop screw 52 is in threaded engagement with the block 22, and is arranged to bear against the frame 3 at a point above said block, and ad ustably limit the extent of upward movement of the arm 12 due to the force exerted on the arm by the spring 45. The screw 52 is shown as provided with a set nut to clamp 1t 1n its various positions of ad ustment to the block 22.

In operation, the belt is shifted to the fast pulley 9 and the shaft 5 1s rotated at a su table speed which causes the annular series of rollers in the hammer to apply to the tools, through the bar 46 and arm 12, percussional impulses in rapid successlon. The operator then takes a shoe which has been lasted and presents the same in an inclined position to the tools in the manner shown 1n Fig. 1, the rim 20 of the creaslng tool 18 bearing against the upper and pressing 1t into close engagement with the hp and feather edge of the innersole, and into the angle formed at the junction of these parts, while the blocking tool 32 bears against the upper at the side of the shoe adjacent to the shoe bottom at a point close to the point where the creasing tool engages the upper. The rapid vibration imparted by the hammer to the tools while thus in contact with the shoe causes the creasing tool to beat down and compact the leather and force it into firm engagement with the lip and margin of the innersole in such a manner that the leather is given a permanent set and also causes the blocking tool at the same time to beat and compact the leather at a weaver point immediately below the sole margin. Said tools thus cooperate to form a sharp and well defined edge on the shoe, and they also cooperate to produce a close fit between the upper end of the lip and featheredge of the innersole so that the welt may be laid flat, and in close engagement with the shoe margin, both of which results contribute to improve the appearance of the finished shoe. As the operator moves the shoe along to present successive portions thereof to the action of the tools, the tools rotate freely on their supports, the blocking tool 32 yielding, more or less, as the shoe is pressed against it, relatively to the creasing tool as the shoe is moved varying distances in the direction of the tools. This relative movement of the tools is necessary in order that the rim 20 may act to hold the upper close to the lip, irrespective of variations in width of the marginal extension between the lip or shoulder, and sole edge, which variations occur in most shoes of this type. The capacity for yielding possessed by the blocking tool also enables the operator to control the force of the blots delivered against the shoe by this tool, by merely varying the amount of pressure of the shoe against the tool.

Having thus described my invention, what. I claim as new and desire to secure by Letters Patent of the United States is:

l. A machine of the class described having, in combination, a tool shaped to force an upper into the angle formed by the lip and feather edge of an innersole, and means to impart rapid vibrations to said tool.

2. A machine of the class described ha ving, in combination, a rotary tool shaped to force an upper into the angle formed by the lip and feather edge of an innersole, and means to impart rapid vibrations to said tool.

A machine of the class described, having, in combination, a movable support, a tool carried by the support shaped to force an upper into the angle formed by the lip and feather edge of an innersole, and means acting on said support to impart rapid vibrations of said tool.

t. A machine of the class described having, in combination, a movable support, a rotary tool carried by the support shaped to force an upper into the angle formed by the lip and feather edge of an innersole, and means acting on the support to impart. rapid vibrations to said tool.

5. A machine of the class described having, in combination, a tool shaped to force an upper into the angle formed by the lip and feather edge of an innersole, means for supporting the tool in an inclined position, and means for actuating the tool.

6. A machine of the class described having, in combination, a freely rotatable tool shaped to force an upper into the angle formed by the lip and feather edge of an innersole, means for supporting the tool in an inclined position, and means for actuating the tool.

7. A machine of the class described having, in combination, a freely rotatable tool shaped to force an upper into the angle formed by the lip and feather edge of an innersole, means for supporting the tool in an inclined position, and means for imparting rapid. vibrations to the tool.

8. A machine of the class described hav ing, in combination, a tool shaped to force an upper into the angle formed by the lip and feather edge of an innersole, a tool arranged to beat the side of the SlHP adjacent to the sole, and means for actuating said. tools.

S). A machine of the class described having, in combination, a tool shaped to force the upper into the angle formed by the lip and feather edge of an innersole, a tool arranged to beat the side of the shoe adjacent to the sole, and means for imparting a series of rapid vibrations to said tools.

10. A machine of the class described having, in combination, an upper creasing tool, a blocking tool supported for yielding movements relative to the creasing tool, and means for imparting a series of rapid vibra tions to said tools.

11. A machine of the class described having, in combinatitm, an upper creasing tool, a beating tool, said tools being supported for free rotation, and actuating means for said tools.

12. A machine of the class described having, in combination, a rotatable tool shaped to force an upper into the angle formed by the lip and feather edge of an innersole, and a rotatable tool adapted to beat the upper at the side of the shoe and having its periphery arranged adjacent to said first-mentioned tool.

13. A machine of the class described having, in combination, a rotatable tool shaped to force an upper into the angle formed by the lip and feather edge of an innersole, and a rotatable tool adapted to beat the upper at the side of the shoe, said tools being arranged for relative yielding movements.

let. A machine of the class described having, in combination, a rotatable tool shaped to force an upper into the angle formed by the lip and feather edge of an innersole, a rotatable tool adapted to beat the upper at the side of the shoe, said tools being arranged with their peripheries in proper relation to cooperate in forming a sharp edge on the shoe, and means for imparting a series of rapid vibrations to said tools.

15. A machine of the class described having, in con'ibination, an upper creasing too],

a blocking tool, yielding means for moving I! the blocking tool relatively to the creasing tool, and means to determine the extent of said movement.

16. A machine of the class described having, in combination, an upper creasing tool, a blocking tool, yielding means for moving the blocking tool relatively to the creasing tool, and an adjustable stop to limit said movement.

17. In a machine for operating on boots and shoes, a freely rotatable tool shaped to force the upper into the angle formed by the lip and feather edge of an innersole, a freely rotatable tool constructed and arranged. to beat the upper at the side of the shoe near the point of engagement of the firstmen tioned tool with the shoe, a pivotal support for said tools, and a hammer constructed to apply to the tools through said support a series of rapid vibrations.

18. In a machine for operating on boots and shoes, a pivoted support, upper creasing and blocking tools carried thereby, a ham mer for applying rapid blows to said support in the direction of the work, and yielding means for reversely actuating the support.

19. In a machine for operating on boots and shoes, a pivoted support, upper creasing and blocking tools carried thereby, a hammer for applying rapid blows to said support in the direction of the work, yielding means for moving the support in a reverse direction, and an adjustable stop to limit the extent of said movement.

20. In a machine for operating on boots and shoes, a pivoted support, tools carried by the support and arranged for relative yielding movements, a hammer for applying rapid blows to the support in the direction of the work, and yielding means for reversely actuating the support.

21. In a machine for operating on boots and shoes, a pivoted support, tools carried by the support and arranged for relative yielding movements, means to determine the normal position of one of said tools relative to the other, a hammer for applying rapid blows to the support in the direction of the work, and yielding means for reversely ac tuating the support.

22. In a machine for operating upon shoes, the combination with a tool arranged to force an upper inwardly from the outer margin of a sole to the shoulder thereon, of a tool for beating the upper at the side of the shoe, and actuating mechanism for said tools.

23. In a machine for operating upon shoes, the combination with a tool arranged for reciprocating movements to force an upper inwardly from the outer margin of a sole and tuck it into the angle formed by the feather edge and lip, of a blocking tool for beating the upper at the side of the shoe, and actuating mechanism for said tools.

24. A machine of the class described having, in'combination, an upper creasing tool, a blocking tool, and means for reciprocating said tools.

25. A machine of the class described having, in combination, an upper creasing tool, an upper blocking tool, and means for imparting a series of percussional impulses to said tools while they are in engagement with the work.

26. A machine of the class described having, in combination, an upper creasing tool, a blocking tool supported for yielding movements transverse to the axis of the creasing tool, and actuating means for said tools.

27. A machine of the class described having, in combination, an upper creasing tool, a blocking tool supported for yielding movements transverse to the axis of the creasing tool, and means for imparting a series of rapid vibrations to said tools.

28. A machine of the class described having, in combination, a rotary upper creasing tool and a rotary blocking tool mounted for relative movements transversely of their axes.

29. A machine of the class described having, in combination, a rotary upper creasing tool and a rotary blocking tool arranged for relative movements transversely of their axes, and yielding means acting to maintain said tools with their axes in substantial alinement.

30. A machine of the class described having, in combination, an upper blocking tool, and an upper creasing tool having a rim to hold the upper close to the shoulder on an innersole, said tools being mounted for free rotation and relatively movable transversely of their axes, and yielding means to hold the blocking tool against the side of a shoe.

31. A machine of the class described having, in combination, a creasing tool and a blocking tool, supporting means for said tools constructed to permit bodily movement of the blocking tool relatively to the creasing tool, means to impart vibratory movements to the tools, and yielding means acting on the blocking tool arranged to permit the operator to vary the force delivered by said tool to the work.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES CAVANAGH. lVitnesses:

ARTHUR L. RUssnLL, HERBERT WV. KnNwnY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C.

ions in Letters Patent No. 1,90%),

street It is hereby certified that in Letters Patent No. 1,009,721, granted November 28,

1911, upon the application of Janiee Uavanagh, of Boston, Massztchueotte for an iinprovement in Upper-creasing l viacllinee," errors appear in the printed epeeiiication requiringcorrection as follows: Page 3, line 5, for the words end of read and; and same page, line 50, for the Word of" read to; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Ufliee.

Signed and sealed this 26th day of December, A. D., 1911.

[SEAL] C. C. BILLINGS,

Acting (/h'm /njss oiier of Patents.