US1247893A - Feather-edging machine. - Google Patents

Description

W. C. STEWART.

FEATHER EDGING MACHINE.

APPLlCATlON FILED JUNE 9.1915;

Patented. Nov. 2?, 1917.

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WILLIA'M C. STEV/ART, OF S'WAMPSGOTT, MASSACHUSETTS, ASSIGNOR T0 UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATIGN OF NEW JERSEY.

FEATHER-EDGIHG MIACHINE.

Specification of Letters Patent.

Patented New. 2*7, 191%.

Application filed June 9. 1915. Serial No. 33,039.

To all whom it may concern:

Be it known that I, \VILLIAM C. S'rnw- ART, a subject of the King of Great Britain. residing at Swampscott, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Feather-Edging Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to feather edging machines for use in beyeling the face of shoe soles. More particularly the invention relates to shank reducing machines for skiving the flesh side of ashoe sole at the shank.

In the manufacture of outsoles for shoes it is desirable to bevel or skive off the shank portion of the sole to provide room for the forward ends of the counter and the beveled ends of the welt at the breast line of a welted shoe. An outsole when properly skived out at the shank can be more readily molded during the leveling operation, and when applied to the shoe, the shank has a light edge appearance which greatly adds to the finish of a shoe. To gain the full effects of the advantages of reduced shank outsoles it is necessary that the ski ing shall be correctly shaped and located in t1 e true shank of the outs-ole as bounded approximately by the ball line and breast line of a sole. In the usual method of reducing the shanks of outsoles, the sole is fed by the operative along an edge gage in front of a rotary cutter and the operatives depend entirely upon their skill and experience to properly locate and shape the shank skiving. When considering the large number of clifferent styles of soles and the variations of the length of the shank for all the different sizes and widths of soles, it is obvious that the operative can only approximately locate and shape the skiving by eye in the ordinary practise. This type of work is not uniform and produces a non-uniformity in the shoes to which the sole is applied and necessarily reduces the grade of the shoes. Further difficulty is experienced also in shaping the skiving by eye when over size block and died-out soles are used. In using a ten size block sole to make a six size outside, the skiving on the block sole for a six size will be shorter and run in closer to the center line of the sole than the skiying of the ten size sole and, with a wide sham: cut, the skiving is liable to extend past the ball and breast line of the sole.

The primary object of the invention to provide a feather edging machine for operating on marked soles which will overcome the objectionable features attendant on the ordinary practice of shank skiving.

In accordance with this object, one feature of the invention contemplates the pro vision in a feather edging machine having a guide for the sole, of a pointer adjacent the guide to act as a reference index to de termine the feeding movement of the sole. By employing a marked sole with this type of machine, the pointer may be employed as a starting and stopping point to which the mark on the sole is presented when the sole is fed across: the skiving knife. lVith a marked sole to locate the skiring and a pointer on the machine to control the character of skiving, a uniform class of work can be produced. in the preferred form of the invention, however, the marks on the sole are notches and the pointer is in the form of a stop which is positioned to ride on the sole edge as it is fed across the cutter. lVhen the notches contact the stop, the feeding movement of the sole will be automatically stopped in a position where the correct character of the cut will he made in the sole.

Another object of the invention is to provide a feather edging machine with a simple adjustment by which the sole positioning parts may be set to give a predetcr mined form of cut and which provides for the controlling characteristics of sole to be made. In accordance with this object, an other feature of this invention contemplates the provision in a feather edging machine having an edge gage for guiding the sole while it is being skired, of an adju member for the gage provided with a g ated dial from which the ed 'e page may he set for making skivings of a predetermined character for any type of sole. The feather edging machine hereinafter described is provided with stops for engaging the notches on the sole edge to control the length of cut, and in the preferred form of the invention these stops are operatircly connected with the edge gage in such a manner that when the edge gage is adjusted for different widths of cut, the stops are simultaneously adjusted to correspondingly control the length of cut.

Other features of the invention consist in certain arrangements and construction of parts hereinafter described and claimed, the

advantages of which will be obvious to those skilled in the art to which the invention relates.

In the accompanying drawings, Figure 1 is a front elevation of the head of a feather edging machine with the preferred form of the invention applied thereto; Fig. 2 is a side elevation of the parts illustrated in Fig. 1; Fig. 3 is a vertical section on the line 33 of Fig. 1, illustrating the relation of the sole positioning parts to the cutter; Fig. 1 is a vertical section on the line etl of Fig. 2, illustrating the construction of the edge gage carrier and the stop carriers, and the connection between them; and Fig. 5 is a view of a block sole illustrating the form of skiving made by the machine.

The feather edging machine illustrated in the accompanying drawings has substantially the same construction of parts and mode of ope 'ation as the machine described and claimed in the patent to Preble, No. 693902, patented February 25, 19 02. This machine has the usual form of cutter head 10, mounted in a machine head 12 on a continuously rotatable shaft 14. An edge gage l6 and face gage 18 are supported in front of the cutter head 10 for positioning the sole as it is fed across the cutter.

lVhen employing the machine for reducing the shanks of out soles, the sole blank is placed between the cutter 10 and the face gage 18 with its edge against the edge gage 16. A pair of stops 22 ride along the edge of the sole to engage notches 24 in the sole edge and limit the feeding movement in order to control the character of skiving on the sole. The edge and face gages are attached to shanks 26 and 28 respectively, which are mounted in an edge gage carrier 30. The ends of the shanks 26 and 28 are threaded for the reception of thumb screws 32 and 3a which are held in place against the carrier by means of a retaining plate 36 which fits in annular grooves 38 formed near the base of the thumb screws. The edge and face gages may be adjusted toward and from the face of the cutter 10, to provide for different thicknesses of soles, by means of the thumb screws 32 and 34, and the adjustment of the gages can be maintained by means of set screws 40 in the edge gage carrier which engages the shanks 26 and 28. The edge gage carrier is adjustable across the face of the cutter to set the gages for making different widths of skiving. To provide for this adjustment, the edge gage carrier is movably mounted in a carrier bracket 42, which is attached to the machine head 12 by means of a bolt 44. The edge gage carrier has av cam plate %6 which is provided with a tongue 48, Fig. 3, that projects into and has a sliding engagement with a slot 50 in the bracket 4-2. The cam plate 16 is secured to the body of the edge gage carrier by means of screws 52. The edge gage carrier is adjusted along the slot 50 by means of a hand adjusting screw. This adjusting screw consists of a wheel 54, a right-hand screw 56 mounted in a nut 58, held in a lug 60 which is integral with the carrier bracket 42, and a left-hand screw 62 mounted in a nut 64: held in the edge gage carrier. The nut 58 is held in position in the lug 60 by means of a tie plate 66, and the nut 6% is held in place in the edge gage carrier by means of a set screw 68 so they can both be removed. By this means, the adjusting screw may be taken out and a new adjusting screw and nuts with a different pitch can be put inits place. The adjustment of the screw is maintained by means of a detent 70 which is mounted in a slot immediately behind the hand wheel 54. The detent is forced against a series of teeth formed on the periphery of the wheel 5% by means of a spring 72, which is sufficiently strong to hold the screw from turning under the jar of the machine while permitting a manual adjustment of the screw.

On the upper end of the adjusting screw is mounted a dial 74 which is provided with a series of graduations 76 adapted to register with a pointer 78 mounted on the carrier bracket at the side of the dial. The graduations on the dial indicate specific settings of the edge gage for a predetermined width of cut. The numerals of the graduations are index numbers which are obtained from a width measuring machine illustrated and described in my co-pending application Serial No. 33,038 filed June 9, 1915. In this width measuring machine, the block or died-out sole is gaged at approximately the center line of the shank in order to determine the character-er of skiving which must be made on the sole for a predetermined type of finished sole. In male ing the width measurement, the machine has adjustments for the style of sole, that is. mens, ladies, childrens, etc., the sizes and widths of soles, the style widths of soles as to whether the sole is small, large or regular, and further, the measuring machine indicates the largest size and the index for that size of sole that can be made from the blank being measured. The pitch of the adjusting screw 54-. of the skiving machine is carefully formed, so that with a specific setting of the dial for one of these index numbers, the edge gage will be set in a position to make a skiving that will provide for all :of the adjustments mentioned above,

which are the controlling characteristics of a sole to be made. 1 With this form of construetion when a specific lot of soles is to be skived, the shank of one of the soles can be measured in the machine of my applica tion No. 33,038 and the index number indicated in this machine maybe set on the dial 74: by a quick and simple operation, so that a series of adjustments and readjustments in setting the edge gageto provide for all of the characteristics of thesole to be made, is not necessary.

\Vhile the index number is obtained by a measurement of the sole while providing for four characteristics of the sole, namely, the style, size, width and style width, the invention is not limited to an index number providing for these four characteristics 1 but may be obtained by a measurement of a sole with provision for only those characteristics which control or modify the shape and location of the portion of the sole to be operated upon.

The skiving machine illustrated in the drawings is particularly adapted for oper ating on soles marked by the machine illustrated and described in my co-pending application, Serial No. 33,0-ft0, filed June 9, 1915. In this machine a series of notches are placed in the sole edge on both sides of the sole to indicate the boundaries of the true ball and breast line, and thus locate the position of the shank of a predetermined character of sole. Then the marked sole is used in my improved skiving machine, a series of pointers, or stops, are placed at the side of the edge gage to indicate a reference point to .which the notches in the marked sole may be presented in order to form a skiving of apredetermined length.

'These pointers may ride on the edge of the sole, or be adjacent the side of the sole, so that the mark is brought up to the pointer in making a predetermined length of cut, but in the preferred form of the invention, the stops ride on the edge of the sole and are yieldingly pressed so that they will drop into the notches on the sole edge to limit the sole feeding movement. The stops 22 are held in carriers 80 pivotally mounted between a pair of arms 82, Fig. 2, formed on the upper end of the carrier bracket 42. The carriers are locked by means of setscrews 84; upon pivot pins 86 mounted in the arms 82. The arms 82 are separated sufficiently to permit the hub 88 of the 'carriers 80 to be adjusted between them in positioning the stops with reference to the cutter 10. The stops 22 are attached to slides 90 which are mounted in slots 92, see Fig. 4, formed in the carriers 80. The slides 90 are held in the slots by means of cover plates 94: attached to the carriers. These stops are. normally pressed toward thebotub W tom of the cutter by means of coiled springs 96 which are connected between pins 98 mounted in the carriers 80, and pins 100 mounted in the end of the slides 90, and the pins 100 serve to limit the downward move ment of the slides. With this construction, when the sole is placed between the cutter and guides, the stops 22 are positioned to ride on the edge of the sole, and the springs 96f0rce the stops to follow the contour of the sole edge. V hen a stop registers with a notch in the sole, it is immediately forced into the notch by the spring 96 to stop the feeding movement.

In order that the stops may be correctly positioned for engaging the notches in the sole to properly locate the shank skiving, the stop carriers 80 are connected with the cam plate t6 of the edge gage carrier. The correlative movement connection between these members is such that when the edge gage is adjusted for a specific index number on the dial 74, the stops will be correspond ingly adjusted so that the shank skiving will coincide in length with the length of the shank marked on the sole, regardless of the width setting of the edge gage.- Pivot pins 102 project from blocks 10 i which are adjustably mounted by means of slots 106 and screws 108 on the sides of the stop carriers 80. The pins 102 project into cam slots 110 formed on eachsicle of the cam plate 46 so that, when the edge gage carrier is adjusted up and down, the stop carriers are adjusted toward and away from one another. The cam slots 110 are so constructed that a. proportional adjustment of the stops is made when the edge gage is set for a definite width of cut. The adjustment of the stops by the edge gage carrier positions them to control the feeding movement of the sole to confine the shank skiving between the ball and breast lines of the sole. The proportional relation of the stops and edge gage may be varied by adjusting the blocks 104. along the screws 108, so that the specific relation between the length of cut and width of out can be accurately gaged.

The operation of the machine is as follows: A marked sole, such as is shown in Fig. 1, is placed with a notchat one end of the shank in contact with a stop, and the sole is then forced up between the cutter 10 and the face gage 18, and then drawn across the face of the knife until the stop on the opposite side of the gage engages the notch on the other side of the shank when the skiving will be finished. The character of skiving obtained by this operation is illustrated in Fig. 5, which shows a sole that has been skived out.

It will be noted that the ends of the skivings tend to follow the direction of the ball and breast lines. This peculiar type of cut is obtained when feeding the sole against thestops, because the sole between the face guide 18 and the cutter 10 tends to present a convex surface while being skived, and thus a cut is formed tending toward a rectangular shape rather than a crescent shaped out, which would be expected if the sole did not bend over the face guide.

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

1.. A feather edging machine for marked soles having, in combination, a rotary cut- 'ter, means for guiding a sole, and a stop for engaging the sole to control the length of the cut longitudinally of the sole.

2. A feather edging machine for marked soles having, in combination, a cutter, means for guiding a sole as it is fed past the cutter, and a plurality of pointers to indicate the limits of travel of the sole at each side of the cutting point to make a predetermined type of cut.

3. A feather edging machine for marked soles having, in combination, a cutter, means for guiding a sole as it is fed across the cutter, and a yielding stop for engaging a notch in the sole to determine the feeding movement on making a predetermined type of cut.

4:. A feather edging machine for operating on marked soles having, in combination, a cutter, a gage carrier for the sole guiding means, and a pair of stop fingers pivotally connected with said carrier adapted to ride on the edge of a sole as it is fed past the cutter and engage notches in the edge to limit the feeding movement.

5. A feather edging machine for operating on marked soles having, in combination, a cutter, a guide for the sole including a sole support to hold the sole up against the cutter and an edge gage, a stop on each side of the guide to engage notches in the edge of the sole in making a predetermined type of cut, and means for adjusting the guide and stops to vary the type of cut.

6. A feather edging machine for operating on marked soles having, in combination, a cutter, a gage carrier, stop carriers, guides in the carriers for positioning the sole while it is being cut, stops in the carriers for engaging the edge of the sole, and a proportioning connection between the stop and gage carriers whereby the adjustment of one will correspondingly adjust the other. 7. A feather edging machine for operat-. ing on marked soles having, in combination, a cutter, guides for positioning the sole while it is being cut, stops for engaging notches in the sole to limit the length of cut, a connection between the guides and stops by which they may be adjusted in a definite relation, and means for varying the relational'setting between the stops and guides.

8. A feather edging machine for operating on marked soles having, in combination, a frame, a rotary cutter fixed in the frame, a gage carrier slidably mounted in the frame, sole guides adjustably mounted in the gage carrier, stop carriers pivotally mounted on the frame having a relative adjusting connection with the gage carrier, stops slidably mounted in the stop carriers, and means for adjusting the gage carrier.

9. A feather edging machine for operating on marked soles having, in combination, a cutter, gages for guiding the sole, stops for determining the length of the cut on the sole having a correlative adjustable connection with the gages, and an adjusting member for said gages having a dial to indicate the setting of the gages and stops for a predetermined character of cut.

10. A feather edging machine for operating on marked soles having, in combination, a cutter, guides for a sole, stops for engaging notches in the sole to determine the length of cut, and springs for yieldingly holding the stops against the edge of the sole, whereby the stops follow the contour of the sole during the feeding movement of the sole.

11. A featheredging machine for operating on marked soles having, in combination, a cutter, a gage carrier, a sole guide on the carrier, a stop operatively connected with the carrier, and means for adjusting the carrier to set the guide and stop for dif ferent types of cuts.

12. A feather edging machine for operating on marked soles having, in combination, a cutter, a gage carrier, sole guides on the carrier, stops adjustably connected with the carrier, means to adjust the guides for different widths of cut, and means for adjusting the stops for different lengths of cut.

13. A feather edging machine for operating on marked soles having, in combination, a cutter, a gage carrier, a sole guide on the carrier, stops correlatively adjustably connected with the carrier, and means to simultaneously adjust the stops and guide for a predetermined type of cut.

14:. A feather edging machine having, in combination, a rotary cutter, guides for the sole, stops for engaging notches in the edge of the sole, means to adjust the guides to locate the cut in a definite relation to the center line of the sole, and mechanism controlled by said means for automatically correspondingly adjusting said stops to control a predetermined length of cut, regardless of the width of cut.

15. A feather edging machine having, in

combination, a cutter, an edge gage for con trolling the width of cut, stops for determining the length of cut, and an indicator adjusting means for setting the gage and stops for a predetermined type of out which provides for the controlling characteristics of the sole.

16. A feather edge machine for operating on marked soles having, in combination, a cutter, means for positioning the sole as it is fed across the cutter to determine the width of cut transversely of the sole, and a. pointer for indicating the amplitude of the longitudinal feeding movement for a predetermined length of out.

17. A feather edging machine having, in combination, a cutter, an edge gage for guiding a sole blank and controlling the Width of cut, a stop for controlling the length of cut, and a dial indicating means for setting the gage and stop, having calibrations providing for the size, Width and style of sole to be formed from the blank.

WILLIAM C. STEWART.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G.

It is hereby certified that in Letters Patent No. 1,247,893, granted November 2-7,

1917, upon the application of William C. Stewart, of Swampscott, A Iassachusetts,

for an improvement in Feather-Edging Machines, errors appear in the printed specification requiring correction as follows: Page 1, lines 53-54, for the word outside" read out/sole; page 2, line 61, for the word engages read engage: page 5,

line 6, claim 16, for the Word edge road edging i 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 Office. v

Signed and sealed this 5th day of February, A. 1)., 1918.

[SEAL] R. F. WHITEHEAD,

Acting Covnmv'ssimmr of Patent-v. Cl. l217.

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