US1104915A

US1104915A - Heel-trimming machine.

Info

Publication number: US1104915A
Application number: US52855409A
Authority: US
Inventors: Benjamin F Mayo
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1909-11-17
Filing date: 1909-11-17
Publication date: 1914-07-28
Anticipated expiration: 1931-07-28

Description

B F. MAYO.

HEEL TRIMMING MACHINE. APPLICATION FILED NOV.17, 1909.

. 1 1 04,9 1 5; Patented July 28, 1914.

3 S'HEETSSHEET 1.

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l/V/T/VESSES //\/I/E/\/TL7R7 m am 3 B. P. MAYO.

HEEL TBIMMING MACHINE.

APPLICATION FILED NOV. 17. 1909.

1,104,915, Patented July 28,1914. 3 SHEETS-SHEET 2:. I

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HEEL TRIMMING MACHINE.

APPLIOATION II-LED NOV. 17, 1909.

1,104,915, Patented July 28,1914.

3 SHEETS-SHEET 3.

VV/T/VESSES tinrrnn siraras raT NtroFnion BENJAMIN r. MAYO, or SALEM, Massacnnsnrrs, .ASSIGNOR To UNITED snon MACHINERY COMPANY, or PATERSON, NEW JERSEY, A CORPORATION on NEW JERSEY.

HEEL-TRIMMING MACHINE.

nection with the accompanying drawings, is

a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to heel-trimming 'machines and particularly to novel means for supporting and guiding the shoe with relation to the cutter by which the heel is trimmed.

It is customary to employ in heel-trimming machines a toplift guide for engaging the toplift of the heel to determine the extent to which the lower portion of the heel is trimmed, and arand-guide for engaging the shoe above the heel to determine the extent to which the upper portion of the heel is cut away, this latter guide having a' lip formed to enter the rand-crease between the counter portion of the shoe and the heelseat end of the sole which, for convenience, will herein be included in the term heel.

It is usually desirable to trim a heel so that there is left a substantially uniform projection of the heel-seat all around the heel, although some shoe manufacturers prefer to have the heel'trimmed more closely at the sides or breast corners than at the rear end. Certain conditions make it difficult to obtain the desired relative extents of projection of the heel-seat at the rear end and sides of the heel with machines as heretofore constructed. Among these conditions may be mentioned the fact that counters are usually so formed that they present at the sides of the shoe a rounded or bulging guiding surface for engaging the rand-guide. This shape of the guiding surface requires the rand-guide to be positioned very nearto the periphery of the cutter in order that the cutter may trim the sides of the heel as closely as isdesired. At the back of the shoe the counter usually presents a flatter guiding surface for the rand-guide which, if the rand-guide is positioned the same distance from the periphery of the cutter as is required for trimming the sides of the heel causes the shoe to be guided so close to the cutter that the rear end of the heel is Specification of Letters ran-111;.

I Patented July as, 1914.

Application filed November 17, 1909. Serial No. 528,554. i Y

- cut away more than the sides, instead of being cut away to the same extent or to a less extent as it should be. Another condition frequently met is that the soleusuallv lies closer against the upper at the shank and sides of the heelfthanit does at the rear end of the heel. This is caused in part by the fact that the sole is usually molded and formed in leveling to present at the shank a convex outer faceand,of course, a concave inner face to lie against the upper, while at therear end of the heel the sole presents an approximately fiat face to the upper. The sole thus forms with the upper a relatively narrow rand-crease at the shank and breast corner of the heel and a wide or more open rand-crease atthe rear end ofthe heel. This wider rand-crease at the rear end of the heel allows the shoe pressed against the randguide to approach more closely to the periphery of the cutter when the rear end of the heel is being trimmed than when the: sides and breast corners are being trimmed. This, of course, causes the rear end of the heel to'be cut away more than the sides. A third condition which will be mentioned is' that a large portion of the heels are pitched forward, that is, they areformed with edge faces inclined to the plane of the top-lift, and substantially all'such heels have more pitch at the rear end than they have at the sides. This difierence in pitch is especially noticeable in the heels of womens shoes. Such heels require to be tilted about that'edge of the rand-guide running in the rand-crease as'the trimming progresses from a breast corner toward the more pitched rear end. This tilting movement of the shoe carries the heel-seat toward the 'cutterand causes it to be cut away most where the pitch is greatest. Not only is the heel-seat thus cut away; more at the rear end than at the breast corners and sides of the heel, but sometimes in McKay-sewed cut and the shoe therefore weakened.

To overcome the difliculties above mentioned, the present invention contemplates providing a heel-trimming machine with means for varying the proximity of the shoe to the cutter during successive stages of the trimming operation to control the extent to which different portions of the heel are cut away. Said means preferably operates to carry the shoe from the cutter or prevent its approaching the cutter, as the trimming progresses from the breast corner toward the rear end of the heel, and to reversely move the shoe as the trimming progresses from the rear end of the heel toward the other breast corner.

A very important feature of the present invention consists in providing a guiding device for engaging the shoe as it is presented to thecutter, and means for imparting to said device a movement toward orfrom the periphery of the cutter during the trimming operation. Preferably said means is arranged to give a predetermined movement. By thus moving the guide we control the amount of projection of the heel-seat end of the sole with relation to the counter at all parts of the heel. This movement of the guide toward and from the periphery of the cutter may be sufiicient merely to compensate for those conditions which tend to cause the heel to be trimmed unevenly, or it may be great enough to cause the heel to be trimmed less closely at the back than the sides and therefore provide a greater proj ection of the heel-seat at the rear end of the heel than at the sides and breast corners.

In the machine herein shown, to which this invention has been applied, the heel is supported by its edge on a rest, herein referred to as the edge-rest, and it is found in practice that it is desirable to move the edgerest vertically with relation to the cutter for supporting the shoe properly while trimming the heel from one breast corner around the rear end of the heel to the other breast corner. As herein shown, a connection is provided between the edge-rest and a guide engaging the counter of the shoe, and hereinafter termed the counter-guide, wherebv the guide is automatically moved toward and from the periphery of the cutter in timed relation with the vertical movement of the edge-rest for presenting the shoe in proper position for the sides and rear end of the heel to be trimmed by the cutter. The movement of the edge-rest is effected, as here shown, manually bv means of a foot treadle, and a cam plate is connected to the rest and provided with a cam slot receiving the connection with the counter-guide, and having a shape to impart the desired movements to the counter-guide toward and from the periphery of the cutter during the movement of the edge-rest.

It will now be understood that a further important feature of the invention consists in providing a guide for engaging the shoe being trimmed and means for moving said guide toward and from the periphery of the cutter in timed relation with the trimming of the sides and rear of the heel. In the embodiment of the invention here shown this movement of the guide toward and from the cutter is conveniently efiected in timed relation with the movement of the edge-rest with relation to the cutter. The guide and the edge-rest are caused by this means to act together, or in combination, for varying the position of the heel with relation to the cutter. In the construction shown as embodying the invention the ed ge-rest is connected with the counter-guide so that when the rest is positioned to support the shoe properly for trimming around the rear end of the heel, which, because of conditions present in the shoe as before explained, is liable to be trimmed too closely, said guide will be put into a position farther away from the cutter than when said rest is positioned to support the shoe for the sides of the heel to be trimmed. This movement of the counterguide determines the extents to which the heel will be cut away on its different sides by the trimmer and so controls the shape of the heel-seat.

In a common type of heel trimming machine, the cutter is composed of a main or heel cutter that trims the main portion of the heel and an auxiliary or rand cutter that trims or bevels the upper portion of the heel seat. Where a cutter of this type is used it is necessary, in order to leave a smoothly trimmed surface to have the move ment of the heel take place relative to both the heel cutter and the rand cutten. Accordingly, a further important feature of this invention consists in providing in a machine emploving heel and rand cutters, means for effecting a relative movement of the shoe and said cutters for the purpose of control ling the extent to which different portions of the heel are cut away. In the embodiment of the invention shown in the accompanying drawings, this result is effected by having the rand cutter mounted in and movable with the rand-guide, the counter and rand uides both being mounted on a carrier and the counter-guide being movable, as hereinabove described. relative to the rand-guide and rand cutter in a direction transverse to the axis of the rand cutter. The rand-guide is automatically movable longitudinally of the axis of the heel cutter to expose more or less of the width of said cutter, as the height of the heel being trimmed varies, and the arrangement is preferably such that the movements of the rand and counter guides are independent of each other.

Other features of the invention, including certain details of construction and combination of parts, will be hereinafter described and pointed out in the claims.

In the accompanying drawings which.

show the preferred embodiment of the invention, Figure 1 is a plan view of a heel trimming machine embodying this invention; Fig. 2is a side elevation of the upper portion of the machine shown in Fig.1; Fig. 3 is a plan view showing the carrier for the rand and counter guides and the mecha nism by which these parts are controlled, certain of the parts being shown in section;

Fig. 4 is a side elevation showing the heel rest and the cam controlling the counterguide in the positions that theyfoccu'py at the beginning of the trimming operation; Fig. 5 is a side elevation'showing the. positions of the heel rest and counter-guidecontrolling cam duringthe'operation of trim-c nates a standard which supports at its upperend in suitable bearings 4 a cutter carrying shaft 6. To the shaft 6 is attached a belt pulley Sand a fly wheel 10. At its left hand end, theshaft 6 carries a. rotary heel trimming carrier cutter whlch comprises a hub 12 and a-plurality of adjustable blades 14. Concentric with thepath of the cutter blades and attached to a sleeve 15 clamped upon one of the bearings 4 is a 'toplift guide 16 adapted to receive against it the edge of the toplift of a heel to be trimmed, said guide being formed upon a beveled tread rest 18 also concentric with the path of the cutter blades. Adjustmentofthe tread rest and the toplift guide toward and away from the path of the cutter may be elfected'by any suitable means, as for example, by the adjusting screw 20. The face or acting portion of the toplift guide lies substantially parallel with the axis of rotation of the cutter carrying shaft. Attached to the machine head isa casing 22 partially surrounding the heel trimming cutter and to which are attached above and below the cutter suitable guard plates 24 which serve as shields to keep the fingers of the workmen from contact with the cutter.

A rand-guide 26 having a lip 27 to enter the rand-crease, as is best shown in Figs. 3 and 6, is attached to a carrier 28- in any'suitable manner, as by screws, the carrier: having bosses through which it is connected by bolts 30 and 32 to forked

links

34 and 36. The carrier 28 forms a bearing for the hub 38 upon which rand cutter blades 40 are mounted. A link 42 is connected by the universal joint 44 with the main cutter carrying shaft 6 and. by a sliding universal joint 46 with the cutter hub 38 and serves to rotate the rand cutter with the'heel trimming cutter parts immediately connectedthere while permitting the rand cutter to partake oft-he movements of the rand-guide and the carrier. Thehub 38 is held from longltudlnal movement in thecarrier 28 by the nut 47 inside the sleeve 48 and therefore the position of the rand cutter withrelation to the rand-guide is constant except that the rand cutter rotates, a j

A channeled arm. 50 attachedto the machine head atthe rear of the parts just de scribed by bolts 51a'nd extending parallel with the main cutter carrying, shaft is provided with, grooves in the side wall of its channel in which grooves is slidably mount- 1 ed a bed piece 52, the bed piece being pro vided with ribs shaped to fit, the grooves in the arm 50. The arm 50 is split and a clamping bolt 54 passing through two parts of the arm is adapted to clamp the bed piece 52 inadju'stedposit'ion in the channel of said arm. Adjustment of the bed piece 52 relative to the arm 50is effected through an adjusting bolt 56v threaded through a depending lug upon the bed piece and rotatably confined in a lug'attached to the arm 50. It-will thus be seen that rotation of the bolt 56 will effect the movement of the bed piece 52 longitudinally of the arm 50 whe the clamping bolt 54 is released. a v

.The bed piece 52 is itself provided with grooves in which is received a slide 7 O, .a,

screw- 72, rotatably confined within an ear 74 risingfrom the bed piece 52 and passing through a screw threaded opening in a lug uponthe slide 70, being adapted to effect an adjustment of the slide uponthe bed piece. A clamping bolt 7 8 extends through ears 80 upon the upper side of the bedpiece 5,2 and is arranged to clamp the slide 70 in an adjustedposition in the bed piece. a p

The slide 70 has pivotally connected thereto one end .of the link 36, the link being forked so that it straddles the forward end of the slide, the forked members bearing against bosses upon opposite sidesof the slide. A stop 82 adjustably carried by the slide70 limits the pivotal movement of'the link 36 with respect to the slide in onedirection, The slide 70 isextended laterally as shown" in Figs; 1 and 3,.and is provided with curved slot 84. c In this slot is slidably mounted a block 86 having a stud 88 to which the two forked ends of the lever 34 are connected. A spring 90 surrounding carrying slide 70 and with it the carrier 28 canbe adjusted bothlongitudinally of the cutter shaft and transversely thereof and by means of the adjustable block 86 said carrier can be adjusted to tip the rand guide toward and away from the cutter. The adjustment of the slide determines the position which the edge of the rand-guide shall occupy with relation to the path of the heel trimming cutter when the trimming operation has commenced, it being understood that it is customary to commence the trimming of a heel at the breast corner of the heel. The adjustment of the slide 70 thereby determines the relation which the top of the trimmed heel at the breast corner shall bear to the counter of the shoe.

Located adjacent therand-guide 26 is a counter-guide 94. The guide 94 is supported by a pair of arms 96 adjustably secured by screws 98, passing through slots in the arms 96, to a yoke 100 sliding in grooves formed in the carrier 28. By means 01 mechanism to be described,'the yoke 100 and the counter guide 94 can be given a movement at the will of the operator in a direction transverse to the axis of the cutter shaft. Pivotedto the yoke 100 by studs 102 is a pair of links 104. Levers 106 having common pivotal connections with the two fork members of the link 36 are connected to the'links 104 by pivot pins passing through slots formed near the ends of said links. The other ends of the levers 106 are connected by a long pivot stud 10! and said stud extends through a hole formed in one end of'the rod 108. The opposite end of the rod 108 is made hollow to receive one end of a smaller rod 110 and is split as shown in Fig. 1, the split portions being provided with ears through which a clamping bolt extends and by means of which the rod 110 can be adjust-ably clamped in the rod 108. A rock shaft 112 is suitably supported in the frame of the machine and has rigidly secured thereto an arm 114 which is pivotally connected to the end of the rod 110. Another arm 116 upon the rock shaft 112 is connected to a link or bar 118 provided with a roll 120, said bar being free to be reciprocated longitudinally in a guide 122 fixed with relation to the frame of the machine or with relation to the extension 124 oifset therefrom. Said extension is provided with a guideway in which is slidably mounted a plate 126 provided with an irregular cam slot 128 which receives the roll 120.

The plate 126 has jointed to it at 130' a link or rod 132 which is connected at its other end to a treadle 134 pivoted near its middle whereby it may be rocked in either direction by the foot of the operator. The plate 126 carries in a split sleeve or bearing 136 the shank of an edge rest 138, said shank being held adjustably by means of a clamping bolt. By the construction just described the operator is enabled to move the edge rest 138 either up or down by means of the treadle 134. It will be noted that the bar 118 is confined by its guide 122 against vertical movement with the edge rest, but is permitted to be moved horizontally by the action of the cam slot 128 on the roll 120. Such movement of the bar 118- is transmitted through the mechanism just described to the yoke 100 and counter-guide 94 which are both moved transversely of the axis of the cutter shaft. A helical spring 140 having its ends connected respectively to the link 36 and the upper link 104 tends to maintain the yoke and guide in their positions nearest the spring 90 in its position nearest to the circular path in which the blades of the trimming cutter travel in trimming the heel. The heel to be trimmed is laid upon the rest 138 and the edge of the toplift is placed against the toplift guide 16 and the lip of the randguide 26 is inserted in the rand-crease of the shoe.

In this position the shoe will be guided laterally at three points, namely, at the edge of thetoplift, at the rand-crease and at the counter above the heel where it is engaged by the counter guide 94. For the best results the trimming of the heel should be commenced at the corner (see Fig. 4) next the line of the breast with the breast turned upward and the operator should hold the tread face of the heel against the tread rest 18. The cutter rotates in the direction indicated by the arrow in Fig. 4 and it will first attack the heel at the corner of the breast. As the cutter trims, the workman holding the shoe in his hands in the position indicated, raises the rest by rocking the treadle with his foot and at the same time turns the shoe in the direction also indicated by the arrow in Fig. 4. By the time the rear part of the heel arrives in position to be acted on by the cutter the rest 138 will have risen sufiiciently to bring the middle of the cam 128 opposite the roll 120. In this position of the plate 126 the bar 118 will have been moved toward the right (as viewed in Fig. 2) far enough to cause theyoke 100, through the intermediate mechanism, to be forced outwardly and hence to move the counter-guide 94 away from the rand-guide 26. Fig. 6 shows substantially the relative positions of the rand cutter, rand-guideand counter-guide at this stage of the trimming operation. It will now be clear that thismovement of the counter-guide shifts that part of the shoe against which the guide acts farther from the path of both the rand and heel cutters. Therefore while the heel may have been trimmed close to or in under the counter at the breast corner, it will be cut away less at the rear end and the desired projection of the heel seat will be left at the rounded end of the heel. If the usual conditions governing the position of the shoe as the trimming progresses from the breast corner toward the rear end of theheel are present, as for example the counter is flatter at the rear end of the heel than at the sides, or the randcrease is more openat the rear endthan at the sides so that the heel is permitted to approach closer to the cutter while the rear end is being trimmed, then the movement of the counter-guide away from thecutters will carry the heel away sufliciently to compensate for such variation in the guiding face presented to the cutter. Also it the heel being trimmed has more pitch at theback than at the sides then the movement of the counter-guide away from the cutters will compensate for the movement which the upper end of the heel has toward the cutter when the heel is tipped for keepingthe toplift on the topliftguide. Thus by this invenbreast corner is reachedat whichthe trimming operation is to stop thefroll 120 will have reached the lower end of the cam slot 128 and the bar 118 will have been moved toward the left (as seen in Fig. 2) thus allowing the spring 140 to return the counterguide 94 to its initial position nearest, the path of rotation of the cutter blades. The

bar 118 is moved by the cam slot 128- and through intermediate parts the counterguide is moved automatically as the rest sustaining the shoe heel is moved by the operator and the extent of movement of said guide transversely of the axis of thecutter shaft may be varied by changing the shape of the cam 128 in the plate 126. It will therefore be understood that by making the cam slot of the proper shape the heel may {50 be cut away or maybe made to project more.

or less with relation to the counter and more at one part than at-another part. It has been stated that it is best to commence the trimming operation at one of the breast corners of the heel, but the particular point .supporting a heel at different elevations at which the trimming is started is not mate rial to this inventionsince it will be obvious that theoperator may start trimming at any desired point. I 7

Having described nay-invention, what I claim as new and desire tosecure byLetters Patent of the United States is g 1. In a heel trimming machine the combination with a rotary cutter, of means underthe coniroliof t man movable to vary 7-5 the position of the h duringpsuccessive H stages of the trimming operation, a guide engaging the counter of the shoe be ng trimmed and means connected wlth said first mentionedv means for moving the guide toward-and from'the periphery of the cutter n accordance with successive positions of nation witharotary cutter, of a guide forengagingthe counter of theshoe as the shoe 1s presented tothecutter and means for g1vng sald 'gulde varymgmovements in predetermined succession to cause successive por-' tions of the heel to becut away to diflerent extents, v i

4;."111 a heel trimming machine the combination of a rotary cutter,;means arranged to be moved during the trimming operation for whilethesides and the rear end of the heel are being trimmed and shoe guiding means arranged for movement during the trimming operation in timed relation to the movement of said first named means for guiding the;

.shoe at one distance from the pathof the cutterwhile the rear end isIbeing trimmed and at a difi erentdistance while thesides are being trimmed. i I t 5. In a heel trimming machine the'combination of arotary cutter,aheel rest, means under the control of the workman for moving the heel rest vertically, aguide for the shoe and means arranged to give said guide a predetermined movement transversely of 12 the axis of the cutter in timed relation to the v movement of the heel rest, I e

6 In a heel trimming machine the combination of a rotarycutter, a heel rest, means formoving the 'heel rest vertically, aguide for the shoe and connections between said guide and 'heel restfor moving said guide toward andfrom the periphery of the cutter during a portionof the movement of the heelrest and holding said guide against such I to move the shoe into different positions dur movement during another portion of the the counterof the shoe.

1 8. In a heel trimming machine, the combination with a rotary cutter andfa rand-guide for guiding the shoe as it is presented to the cutter, of a device engaging the shoe during the trimming operation and means for im parting to said device varying movements predetermined in extent, direction and Suecession to cause successive portions of the heel to be cut away to difierent extents.

9. In a heel trimming machine the combination with a rotary cutter and a rand-guide movable during the trimmingoperation to expose more or less of the width of the cutter, of a guide engaging the counter of the shoe and means for imparting to said last mentioned guide during the operation of the machine a predetermined movement toward or from the path of the cutter.

10. In a heel trimming machine the combination with a heel cutter and arand cutter, of means constructed and arranged to be actuated in accordance with successive positions of the heel being trimmed to cause a relative movement of the heel and said outters to control the extent to which different portions of the heel are cut away relatively to the counter of the shoe.

11. In a heel trimming machine the combination with a heel cutter and a rand cutter, of means constructed and arranged to be actuated in accordance with successive positions of the heel being trimmed to move the shoe toward or from both of said cutters.

12. In a heel trimming machine the combination with heel and rand cutters, of means ing successive stages of the trimming operation, means under control of the. operator arranged to be actuated in timed relation to the movement of said means to impart to the shoe a predetermined movement relatively to both of said cutters.

18. In a heel trimming machine the combination with a heel cutter and a rand cutter, of a plurality of guiding devices for guiding the shoe as it 'is presented to the cutter and means for enabling the workman to move one of said guiding devices relatively to both of said cutters during the trimming operation to vary the-extent to which different parts of the heel will be cut away relatively to the counter of the shoe.

14:. In a heel trimming machine the combination with rotary heel and rand cutters,

ofa plurality of devices for guiding the shoe as it is presented to said cutters and means for enabling the workman to move one of said guiding devices relatively to both of said cutters and in a direction transverse to the axis of the heel cutter during the trimming operation.

15. In a heel trimming machine the combination with a'heel cutter, a rand cutter and a rand-guide having a constant guiding relation to said rand cutter, of means for controlling the distance from the rand-guide at which the counter of a shoe can be held during successive stages of the trimming operation.

16. In a heel trimming machine the combination of a cutter, a rand-guide, a second guide arranged to engage the shoe and means whereby the second guide may be moved during the trimming operation to vary the position of the shoe relatively to the rand-guide;

17. In a heel trimming machine the combination with a rotary cutter, of means including a rand-guide and a counter-guide for guiding the shoe as it is presented to the cutter, an edge rest and mechanism connecting the edge rest and counter-guide whereby the movements of one of said parts takes place in predetermined relationship to the movements of the other.

18, In a heel trimming machine the combination with rotary heel and rand cutters, a plurality of guiding devices for guiding the shoe as it is presented to said cutters, an edge rest and actuating meansfor the edge rest, of mechanism connecting the actuating means and one of said guiding devices whereby during the trimming operation said guiding device is moved relatively to both of said cutters and in a direction transverse to the axis of the rand cutter,

19. In a heel trimming machine the combination with a rotary heel trimming cutter, a toplift guide positioned adjacent thereto, a rand cutter and a rand-guide having a constant guiding relation to said rand cutter, of a counter-guide positioned adjacent said rand-guide and means controlled by the operator whereby the counter-guide may be given a to-and-fro movement relatively to the rand-guide during the trimming operation.

20. In a heel trimming machine the combination of arotary cutter, a rand-guide, a counter-guide located adj acent said randguide, an edge rest, actuating means for said rest'including a cam and means operated by said cam for moving said counter-guide relatively to said rand-guide.

21. In a heel trimming machine the combination of a rotary cutter, a rand-guide adjacent said cutter, a carrier vsupporting said rand-guide, said rand-guide and carrier being automatically movable during the trimming operation as the height of the heel In testimony whereof I have signed my.

bemg trimmed vanes a counter-gulde also name to thls speclficatlon 1n the presence of 10 mounted on said earner, an edge rest, actuattwo subscriblng Witnesses. 1

ing means for said'rest including a cam, and i mechanism connected With said counter- BENJAMIN LIAYO' guide and operated by sald cam for movlng Wltnes sesz sald counter-guide relatively to send earner JOHN H. MCOREADY, k

and randgulde. LEONARD M. JOHNSON.

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

Washington, D. G. d

Corrections in Letters Patent No. 1,104,915.

It is hereby certified that in Letters Patent No. 1,104,915, granted July 28, 1914, upon the application of Benjamin F. Mayo, of Salem, Massachusetts, for an improvement in Heel-Trimming Machines, errors appear in the printed specification requiring correction as follows: Page 6, line 70, after the word cutters insert the words during the trimming operation; same page, lines 71-72, strike out the words during the trimming operation; same page, line 94, for the word takes read take; 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- Signed and sealed this 6th day of October, A. D., .1914.

R. F. WHITEHEAD,

Acting Commissioner of Patents.

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