US1355471A - Burnishing-machine - Google Patents

Description

W. HAMANN.

'BURNISHING MACHINE. l APPLlcAIoN'FlLED 1uNE1 Patented 0t.12,1920.

UNITED s'rarss rarsnr orifice.

WILLIAM HAIVIANN, or InoNDEoUoIr, NEW Yoeri, AssIeNoE, BY MEsNE iissIGfN- MENTS, To UNITED sIIoE MACHINERY conrorta'ri'oN, or rnrEEsoN, NEW JERSEY,

A. CORPORATION OF NEW JERSEY.

BURNISHING-M'ACHINE.

Application filed .Tune 1, 1916.

To @ZZ iai/tom t may concern lie it known that l, TWILLIAIvr HAMANN, a citizen of the United States, residing at lrondequoit, in the county of Monroe and State of New York, have invented certain improvements in lurnishing-Machines, of lwhich the following description, in connection with the accompanying drawings, is a speci'ication, like reference characters on the drawings indicating like parts in the several Vfigures.

'lhis invention relates to machines for nishing or ornamenting shoes. T he invention is herein disclose-d by Way of example as embodied in a machine designed for finishing the marginal portions of the soles f shoes, such as the upper and edge surfaces of the sole margins of shoes of various types, the term cmarginal surfaces of solesA ltical edge of the sole after it has heen trimmedlto final shape, this operation being L 1' ,1L1,1t: .77+'

terme-u 1n the trac e enge set ing. it is to be understood, however, that the invention `in various of its aspects is not restricted to embodiment in machines of the particular type shown. p

,ein important object of the present invention is to provide an improved organization adapted to be embodied in machine of the type above referred to, Which will be capable of performing properly and satisfactorily inoenting and burnishing operations upon 1u'elted shoes, including particularly Goodyear Welt shoes, as Well as upon various other types of shoes, including McKay seWed shoes, turn shoes and vstitchdoivn shoes, and which, in addition to the Widest possible range of usefulness, Will effect very substantial economies in these operations, will eliminate all danger of injuring or crippling shoes, be generally monJ satisfactory and veiicient in operation, and require a minimum Specification of Letters Patent.

Patented Oct. 12, 1920.

serial No. 101,191.

of operative adjustment on the part of the operator. Y

1t isV extremely important, to avoid serious injury to the shoes operated upon, that theY machine be constructed to afford invariably effective support for the portions of the shoe sole being treated against the thrust of the indenting tool. At the same time, the machine mus't be constructed so that the indenting tool may be readily projected into the angle between the upper and the sole margin under the overhanging Yportion of the upper far enough to .carry the indentations close to the junction of the upper with the sole margin Without danger of forcing the upper and sole apart so as to Vdistort the sole and injuriously open up the crease be tween the upper and the sole, thereby Weakening or breaking the sole or Welt attaching 'seam and seriously damaging or entirely crippling the shoes and renderingl them un salable.

An object of the present invention is to provide a machine adapted for performing both the indenting and the edge finishing operations at the same time which will be so constructed and arranged that a proper support will be provided for the portions of the shoe sole being operated upon against the thrust of the indenting tool, Whatever manipulation of the shoe may be desirable to secure proper indenting and'indentation burnishing according to the requirements of any particular shoe or type of shoe, and which will at the same time beso organized that, Whatever the requirements of the particular shoe or Whatever manipulation of that shoe is necessary, the indenting and edge finishing operations may be properlycarried on simultaneously if desired.

in accordance with important features of the invention, in the illustrated machine, the shoe sole is supported unyieldingly against the thrust of the indenting tool bya Work support or abutment which, as shown, permits the solo to be rocked into different angular relations to thc' indenting toolvvvhile always supporting the portion of the sole being operated upon unyieldingly against the thrust of the indenting tool in any angular position of the sole relatively to the tool. ln the illustrated construction, the Work support is a abutment constructed and arranged to engage the corner formed hy Y the junction of the vertical edge and tread faces of the sole, which abutment is apart of the edge setting tool. Y. It is further of importance that the invdenting and edge setting instrumentalities this invention to organize the instrumentalities of the machine so as to satisfy these requirements completely, and important features of the invention consist inv a construction and arrangement of the indenting and edge setting tools such that they may be moved relatively to each other vabout the corner formed by the junction of the upper and vertical edge surfaces of the sole as a center. As shown, this center lies substantially in the intersection of the working faces of the indenting and edge setting tools. In accordance with another feature of the invention, the Villustrated construction and arrangement are such that one of the tools is adjustable toward the center about which the relative angular adjustment of the tools is effected, so that a close relative 'adjustment of the tools can be made and preserved while altering the angle between them.

Another serious diiiiculty encountered in the use'of machines using heated tools profiled to correspond to the surfaces they are to treat, as such machines haveV been constructed heretofore, has arisen from` the necessity of changing the tools frequently in accordance Ywith changes in the styles of the shoes operated upon. The high operative temperatures of the tools make them so diliicult to handle that it has come to he the practice to mount them somewhat loosely in the machines' so that their removal does not oblige the Voperator to grasp them very firmly or to hold them very long. This expedient not only does not eliminate the danger of injury to the operator, but the looseness of the tool mounting causes wear and consequent loss of adjustment or inferior work.

Moreover, in some classes of work, vfor example, where it is important to give independent and especial consideration to the indenting and edge setting operations, the shoemay be treated twice; the shoe being manipulated in the lirst operation primarily to secure the desired relation of the indenttakes the vertical edge of the sole more or less'. out of contact with the profiled face of the iron, and subsequently in a second operation, reversely, the operatormay manipulate the shoeprimarily with a'view to insuring proper treatment of the vertical edge face of the sole by the edge setting iron, more or less without regard to the position of the indenting tool. It is sometimes desir d, however, to perform the edge setting operation separately from the indenting operation. Y

It is a further object of this invention to provide a tool mounting which shall hold the tool firmly and yet provide for the ready removal of the tool. Another feature of the invention consists in the provision of means for readily ejecting the tool from the-niachine without contact by the operator. This not only eliminates all danger of injury to the operator but, at the same time, the suhstitution of a cold iron or a blank iron for the heated profile iron is facilitated whenl ever it is desired to indent without settng the edge.

In accordance with a further feature of the invention, the illustrated machine is so organized that one of the tools may be withdrawn to inoperative position whenever desired without loss of cooperative adjustment, so that the withdrawn tool can be readily replaced in cooperative relation to the other tool without loss of time.

Another important feature of the invention consists in a novel construction of edge setting iron having a shank of polygonal .a burnishing machine in which my invention has been incorporated,

Fig. 2 is an enlarged section on thel line 2 of Fig. l, Y Fig. 3 is. an enlarged section on the lin 3-3 of Fig. l,

Fig. 4 is an enlarged detail showing the operative surfaces of the tool in relation to the sole edge,

Fig. 5 is a detail view of the edge setting iron, and

Fig. 6 is a detail view of the iron'adjustment.

The head 10 carries the shaft 1l which is rapidly oscillated by mechanism. notshcmfn,V

Bolted upon the end of the shaft 11 is the tool carrying head 12. The head 12 has an arcuate slot 13 formed in one side in which slides a corresponding arcuate boss 1/1 formed on the inner surface of one of two spaced plates 15. rlhe plates 15 have rack teeth 16 at their rear ends arranged on an arc of a circle concentric with the arcuate boss 14. Side plates 17 are bolted to the head 12 outside the plates 15 by transverse bolts 18 extending through them and the head 12. A pinion 19 mounted in the plates 17, meshes with the rack teethv 16 and is operated by the ,knurled head 20. The forward bolt 18 passes through the plates 17 and an arcuate slot 21 in the plates 15 which are rigidly connect-ed together in any suitable manner as by a rib 15', and may be rotated about the center of curvature of the rack 16 by turning the knurled head 20. As will be shown later this center is substantially in the intersection of the working faces of the indenting wheel and the burnishing iron.

In the spaces between the edges of the plates 15 which project beyond the edges of the head 12 are mounted the stitch indenting wheel carrier 22 and the edge setting iron The carrier 22 is slidably mounted against the rib 15 between the plates 15 and has mounted upon it a screw 24C which extends through a hole in a plate 25 mounted upon the top edges of the plates 15. The nut 26 adjusts the screw, and consequently the carrier 22, longitudinally between the plates 15 against the tension of a spring 27, one end of which rests against the carrier and the other against the plate 25.v The carrier has a notch 28 in which a tooth 29 on a spring 30 is adapted to engage when the screw 24 is drawn back to its utmost extent (as may be done by graspthe nut 26 with the fingers), thus holding the carrier 22 and the stitch indenting wheel 31 retracted out of operative position, when itis desired to dispense with it and to use the iron 23 alone, or to remove the iron 23 in order to change it or to dispense with it, as will be described. The unscrewing of the nut 26 permits the removal of the carrier 22 when it is desired to change the wheel.

The combined edge setting iron and sup- .port 23 is rectangular in cross section and fits closely into the rectangular space between the square lower edge of the head '12 and the lower projecting edges of the plates 15. It is thus firmly supported against lateral vibration and against the tendency to rotate about its longitudinal aXis. It is supported with absolute rigidity against longitudinal thrust by a rod or plunger 32 which acts as an abutment slidably mounted in bosses 33 and 38 on the head 12. This rod carries a pinned cellar 34 between which and the boss 33 is mounted a spring 35 which holds the collar against the sleeve or abutment 36v which will ,be described below. A spring 32, mounted on the boss 33, engages the rear side of a notch 33', holding the iron firmly against the head 12 and the rod 32. yA blow upon the projecting rear end of the rod 32 will drive it forward against the spring 35 andfcause it to knock the iron 23 forward past, the spring 32, and out of the machine, the wheel 31 being previously drawn back out of the way as above described. It is clear that a hot iron can be removed quickly but without the necessity of touching it with the fingers, thus avoiding injury to the operator and permitting a tighter, firmer mounting of the iron than has been heretofore used in this type of machine. A new iron may be inserted by placing it between the projecting edges of the plates 15 and pushing it backward until the spring 32 seats in the notch 33.

In accordance with an important feature of the invention, in theillustrated machine, the iron itself is used'as an abutment or support for the shoe against the pressure of the wheel 31. The iron has of course the usual bed 332 and channel guard 333. The shoe, before presentation to this machine,has already been trimmed by a cutter corresponding exactly in contour to the formed surface of the iron, Yand the sole, therefore, fits snugly against the bed 332 and channel guard 333. The beveledy portion 33t-of the channel guardy and the bed 332 form a notch into which the corresponding corner at the bottom of the sole edge fits. The beveled portion 334c of the channel guard'and the back 335 (at points on the sole edge where the sole is thick enough to reach tothe back) support the lower corner of the sole and buttress the sole extension irmly'against the pressure of the wheel 31. This support, in the machine shown, comes at the Corner, and nowhere else, so that the shoe can be rocked a substantial amount to enable the upper surface of the sole edge and the working surface of the wheel 31 to be brought into eX- actly theA relative position desired, or to insure penetration of the wheel to the bottom of the crease, without losing the support. lThe bevel 334 and back 335 make acute angles with the working surface of the wheel 31, so that the extension is, in effect, wedged up between the arms of a V having the indenting instrumentality at one side. This relieves the operator ofthe necessity of pulling the shoe against the wheel, and makes for uniform even work without undue exertion on his part.

lt is of course notindispcnsable that the support for the sole edge be a part of the edge setting iron, since the main advantages of the invention can be secured by any .drm

support rigid transversely of-the sole edge under the part of the sole edge being treated, against which the edge may be pressed by the indenting tool, thus avoiding any tendency to pull open the seam joining the upper to the sole or welt.

The illustrated construction and arrangement are particularly designed kfor wheeling and setting together, the drawing Yshowing a profile edge setting iron designed to set the edge in conjunction with the wheeling and burnis'hingrof the upper face of the stock. In some uses of the machine, for example, on high grade shoes, such as many welt shoes, it is important to give independent and especial consideration to the wheeling and the setting.k It is particularly important that any given shoe bermanipulated to insure that the wheel penetrates the crease or angle between the body of the upper and the sole suliiciently to carry the indentations well under the overhanging upper, With this in view, the wheel and the abutment for the corner of the sole are relatively constructed and arranged to permit the shoe to be freely fulcrumed or pivoted about the said abutment to permit the wheel to enter the angle as far as desired, and at the same time to cause the Vwheel properly to treat the upper'face ofthe stock. In some classes of work, for example, where it is desired to wheel the shoe twice, inthe first wheeling the shoe may be manipulated primarily to secure the desired relation of the wheel to the upper face of the stock, regardless of whether or not such Ymanipulation takes the verticaledge of the sole more or less out of contact with theprofle face of the iron, and

subsequently in the second 'wheeling re versely, the operator may guide by the iron, taking care that the edge face of the sole is properly related to thev iron for the best possible `edge setting and without regard to the position of the wheel. In the former operation untoward results due to lack of exact correspondencezor fit between the iron and the sole edge maybe avoided by wheeling the-shoe against a cold iron, or against a blank iron; The substitution of a blank` -iron for they profile edge setting iron is greatly facilitated by the described construction and arrangement providing'means for instantaneously ejecting an iron from the v machine without contact by the operator and consequently without danger of burning the operators fingers.

The collar 34 rests against a yknurledV sleeve 36 on the rod 32', which has an eX- ternally threadedV portion`37 screwing into The center of curvature cf the rack l@ and the boss 14C is substantially at the intersection of the working face of the wheel 31 with the working face of the iron 23. When the knurled head 2O is rotated the plates 15 carrying the stitch indenting wheel v31 are rotated around this center so that the angle between the operative surfaces of the wheel 31 and the iron 23 is suitably changed without altering the registration of these tools relatively to the work. The iron 23 is not mounted upon the plates 15 but rests against the lower surface of the head 12 and remains immovable while the above-mentioned adjustment is made.

It will be noticed that the operative (the lower) 'surface of the wheel 31 is substantially parallel to theaXis of the carrier 22, the journal of the wheel being set up at an angle, so that the operative surface of the wheel 31 Vwill remain in contact with the work in whatever position the carrier may take in sliding along the rib 15.r It will be obvious that the adjustment of the wheel 31 Vby means of the nut 26 merely sets an outside limit to the protrusionr of the carrier 22 from the plates 1 5; Pressure upon c the outside surface of the wheel 3l will force it backward against the spring v27 So that it may respond to variations in the width of the upper surface of the sole edge, thereby allowing the sole edge to rest firmly against the iron 23 while the outside surface of the wheel 31 rests against the lower edge of the vamp. Gas pipes and burners 10 are arranged to heat the iron 23 and wheel 31.

I have thusprovided an indenting ma: chine in which provision is made for the firm support of the sole edge under the pressure of the indenting tool andwhich is convenient in use, irrespective of, and requir-v ing no great exertion on the part of the operator in effecting, the positioning of the shoe necessary in the case of individual shoes to bring the indenting tool into proper relation with the 'sole extension Yand the upper and to cause it to operate to the bottomV of the crease between the upper and the upper face of the sole extension.

I have provided an indenting wheel and a .burnishing iron which are relatively an-` gularly adjustable about a point substantially in the intersection of their working vsurfaces and also Yadjustable toward and from this point independently. The latter feature'permits distance adjustment to take up slight variations in the size of tools, and insures free interchangeability, while the former feature permits relative angular adjustment without loss Vof distance adjustment.

Having described my invention, what I claim as new and desire to secure by Letters 'Patent of the United States is 1. .Inra burnshing machine, an indenting wheel constructed and arranged to move laterally of a sole edge and parallel to its upper surface and to be angnlarly adjustable about a center lying substantially in the corner of the sole edge being presented to the wheel whereby it may operate upon surfaces having various inclinations to the lateral face of the sole edge.

2. In a burnishing machine, two ornamenting tools having intersecting working surfaces which are relatively adjustable to vary the distance bett een corresponding portions of the surfaces and which are arranged to be relatively adjustable also about their point of intersection.

3. In a burnishing machine, a sole edge indenting wheel constructed and arranged to engage resiliently the lower edge of a vamp adjacent to the sole edge being operated on and to be withdrawn and locked out of operative position.

11. In a burnishing machine, an indenting wheel for the upper surface of the sole edge, havin@ adjustment adapting it for work of dierent widths, and means for placing and retaining it in inoperative position, without loss of adjustment.

5. In a burnishing machine, a holder carrying a burnishing iron, a second tool mounted upon said holder constructed and arranged to rotate about a center in the upper corner of a sole edge being operated upon by said tools and means for positively placing said wheel in different adjusted positions.

6. In a burnishing machine, a holder carrying a burnishing iron and an indenting wheel relatively angularly adjustable about a center in the corner of a sole edge being operated on by said tools, one of said tools being constructed and arranged to be independently adjustable toward and from the other.

7. In a burnishing machine, a holder carrying a burnishing iron and an indenting wheel relatively angularly adjustable about a center in the corner of a sole edge being operated on by said tools, said tools being constructed and arranged to be independently adjustable toward and from each other.

arranged to move into operative position against said abutment.

11. In a burnishing machine, a tool carrier, a tool frictionally held on said carrier, and an abutment against which said tool is seated, constructed and arranged to force said tool out of engagement with said carrier.

12. In a burnishing machine, a tool vcarrier, a `tool frictionally held on said carrier, and an adjustable abutment against which said tool is seated, constructed and arranged to force said tool out of engagementfwith y said carrier.

13. In a burnishing machine, a tool having a shank of polygonal cross-section, a holder having a socket fitting said shank, said socket having a bottom member movable to force said tool from said socket.

14. In a burnishing machine, an adjustable abutment, an iron mounted against said abutment, said abutment having freedom of movement toward the iron whereby the iron may be forced out of the machine.

15. In a burnishing machine, an iron, a plunger on which said iron is seated and an adjustable support for said plunger against the thrust of the iron.

16. In a burnishing machine, a tool carrier, spaced plates mounted on said carrier,

.an indenting wheel holder and an'iron fitting between said plates, whereby relative displacement of said iron and wheel transversely to said plates is prevented.

17. In a burnishing machine, a tool holder, spaced plates rotatably mounted on said holder, an indenting wheel carrier carried between said plates, an iron mounted on said holder and fitting between said plates, whereby the angle between the working faces of the wheel and iron may be adjusted.

18. In a burnishing machine, a pair of spaced plates, an indenting wheel carrier and an iron relatively adjustable and fitting between said plates.

19. In a machine of the class described, an edge setting iron and an indenting wheel arranged to cooperate in ornamenting ythe marginal portions of a sole, one of said tools being constructed and arranged to be moved into an inoperative position independently of the other tool.

20. In a machine of the class described, an edge setting iron and an indenting wheel adjustable about the corner formed by the junction of the upper and vertical edge faces of a shoe sole 'as a center and arranged to coperate in ornamenting its edge, one of said tools being constructed and arranged to i be withdrawn to an inoperative position independently of the other tool.

v21. In a machine of the class described, an. edge setting iron and an indentingv wheel arranged for relative adjustment to coperate 'in ornamenting the marginal portions of a sole edge, one of said tools being constructed and arrangedrto be moved, without loss of cooperative adjustment, to an inoperative position.

22. In a machine of the class described, an edge setting iron and an indenting wheel relatively angularly adjustable to conform to the corner formed by the'junction of the vertical and upper edge faces of shoe soles of different styles, .one of said tools being removable from and replaceable in operative position without loss ofy adjustment, independently of the other tool.

23. In a machine of the class described, an edge setting iron and an indenting wheel arranged to coperate vin ornamenting the marginal portions of a sole edge, and means for holding one of said tools in inoperative position independently of the other said tool.

24:. vIn a machine of the class described, an edge setting iron and an indenting wheel arranged to cooperate in ornamenting the marginal portions of a sole edge, one of said tools being constructed and arranged to be withdrawn into and locked in an inoperative position. Y Y

25. In a machine of the class described, a carrier, an ornamenting tool mounted on said carrier, and means mounted on the carrier for ej ecting the tool from the machine.

26. In a machine of the class described, a carrier, an ornamenting tool mounted on said carrier, and means forming a part of the tool support for removing the tool without contactby the operator.

27. In a burnishing machine, a tool carrierV having a socket y constructed and arranged to support a burnishing tool and having a bottom movable for ready removal of the tool.

28. In a machine of the class described, a burnishing iron, an abutment on which it is seated, and means normally resisting displacement of the abutment parallel to the Yline of the tool thrust and constructed and arranged to permit the'operator to overcome the resistance to displacement of the tool to ywheel constructed and arranged to move transversely to theperiphery of a shoe sole between the upper of the shoe and the corner formed by the junction of the upper and vertical edge faces of the sole and to be f angularly -adjustable about a center lying substantiallyin'said corner to adapt the tool to operate upon surfaces having various inf upper surface of the sole in position to indent said surface, and an abutment fixed against movement transversely ofthe sole edge and constructed and arranged to support the portion ofthe shoe sole being treated unyieldingly in opposition to the operative pressure exerted by the tool in any angular positionV of the sole relatively to the tool. f Y

33. Ina machine of the class described, an indenting tool constructed and arranged to enter the angle between the upper and the sole of a shoe in contact with the projectingl upper surface of the sole in position to 1ndent said surface, and anabutment about Y which the shoe sole may be rocked into' different angular relations to the tool and shaped and positioned to support the portion of the shoe sole being treated unyieldingly in opposition to the operative pressure exerted by the tool whatever the angular po-V sition of the sole relatively to the tool.

34. In a machine of the class described, an indenting tool constructed and arranged to enterY the angle between the upper and the sole of a shoe in contact with the projecting upper surface ofthe sole in position to indent said surface, and an abutment shaped and positioned to support the shoeV sole unyieldingly against the thrust of the indenting tool whileV permitting the sole to be rocked freely abouta tangent tothe sole* edge'substantially at the point of operation oft-he tool to relate properly the indent-ing tool and upper surface of the sole while maintaining unaltered the iirm support of the `sole in the line of thrust of the tool.

35. In a machine of the class described, an indenting tool constructed and arranged to enter the crease between the upper and the sole of a shoe in position to indent the upper surface of the sole, and an abutment constructed and arranged to engage the corner formed by the junction of thevertical edge and Vtread'faces of the v'sole and to support the sole unyieldingly against the pressure of the tool in any relativey angular positions of the tool and sole.

36. In a machine of the class described, an indenting tool constructed andarranged vto enter the crease between the upper and the sole of a shoe and to indent the upper surface of the sole, and a rigid abutment having a notch constructed and arranged to engage the corner of the sole formed by the junction of the vertical edge and tread faces of the sole to support the sole against the pressure of the indenting tool While permitting the shoe to be rocked about the said corner to bring the upper face of the sole and the indenting tool into proper operative relation. j

3T. In a machine of the class described, an indenting tool constructed and arranged to enter the crease between the upper and the sole -of a shoe and to indent the upper surface of the sole, and a rigid abutment having a notch constructed and arranged to engage the corner of the sole formed by the junction of the vertical edge and tread faces of the sole to support the sole against the pressure of the indenting tool while permitting the shoe to be rocked about the said corner to bring the upper face of the sole and the indenting tool into proper operative relation, said abutment being adjustable relatively to the indenting tool.

3S. In a machine of the class described, an indenting tool constructed and arranged to enter the crease between the upper and the sole of a shoe in position to indent the upper surface of the sole, and a rigid abutment constructed and arranged to engage the corner of the sole edge formed by the junction of the vertical edge and tread faces of the sole to support the portion of the sole being treated unyieldingly against the pressure of the tool, said abutment forming an acute angle with the operative surface of the tool to permit wedging the projecting marginal portion of the sole between the tool and the abutment.

39. In a machine of the class described, a tool for indenting the upper surface of a shoe sole, and an abutment constructed and arranged to support the portion of the sole edge being treated by said tool unyieldingly against the thrust of the tool, said tool being angularly adjustable relatively to the surface of the shoe being` treated.

40. In a machine of the class described, a tool for indenting the upper surface of a shoe sole, and an abutment constructed and arranged to support the portion of the .sole edge being treated by said tool against the thrust of the tool, said tool being adjustable about the corner of the sole formed by the junction of the upper surface and vertical edge of the sole as a center.

4l. In a machine of the class described, an indenting tool constructed and arranged to enter the crease between the upper and the sole of a shoe in position to indent the upper surface of the sole, and a sole edge engaging tool mounted to resist unyieldingly displacement in the direction of thrust of the indenting tool, and having a surface .constructed and arranged to support the portion of the sole being treated against the thrust of the indenting tool.

fi-2. In a machine of the class described, an indenting tool constructed and arranged to enter the crease between the upper and the sole extension and to indent the upper surface of the extension, and an edge setting tool' rigidly mounted in the machine against displacement in the direction of thrust of the indenting tool, and having a channel guard portion constructed and arranged to support an edge of the sole against the thrust of the indenting tool.

43. In a machine of the class described, an indenting tool .constructed and arranged to enter the crease between the upper and the sole of a shoe in position to indent the upper surface of the sole, and an edge setting tool rigidly mounted in the machine against displacement in the direction of thrust of the identing tool, and having a channel guard portion arranged at an acute angle to the operative surface of the indenting tool to support an edge of the sole against the thrust of the indenting tool.

44. In a machine of the class described, an indenting tool having a working face forming a sharply acute angle with an adjacent end face of the tool and shaped and positioned to be projected into the angle between the upper and the sole of a shoe beneath the overhanging upper to indent the upper projecting surface of the sole from a point near its outer edge substantially to the vertex of said angle between the upper and the sole, and an abutment constructed and arranged to support unyieldingly the portion of the shoe sole being treated Whatever the angular position of the sole relatively to the tool.

In testimony whereof I have signed my'

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