US1203993A

US1203993A - Edge-finishing machine.

Info

Publication number: US1203993A
Application number: US4411015A
Authority: US
Inventors: Herbert Elliot Enslin
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1915-08-06
Filing date: 1915-08-06
Publication date: 1916-11-07
Anticipated expiration: 1933-11-07

Description

H. E. ENSLIN.

EDGE FINISHING MACHINE.

APPLICATION FILED AUG.6. 191s.

Patented Nov. 7, 1916.

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Patented Nov. 7, 1916.

6 SHEETS-SHEET 2.

H. E. ENSLIN.

EDGE FINISHING MACHINE.

APPLICATION FILED AUG.6, m5.

1 03,993. Patented NOV. 7, 1916.

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H. E. ENSL IN.

EDGE FINISHING MACHINE.

APPLICATIONVFILED AUGJ; 1915.

Patented Nov. 7, 1916.

6 SHEETS-SHEET 4.

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EDGE FINISHING MACHINE.

APPLICATION FILED AuG.6. 1915.

Patented Nov. 7, 1916.

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HERBERT ELLIOT ENSLIN, OF MALDEN, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

EDGE-FINISHING MACHINE.

Specification of Letters Patent.

Patented Nov. 7, IQMS.

To all whom it may concern Be it known that I, HERBERT E. ENSLIN, a citizen of the United States, residing at Maiden, in the county of Middlesex and State ofMassachusetts, have invented certain Improvements in Edge-Finishing Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on thedrawings indicating like parts in the several figures.

This invention relates to machines for operating upon the margin of a piece of stock and is herein illustrated in connection with a machine for shrinking or burning the margins of pieces of leather which are later to be incorporated in the uppers of shoes in such a manner as to provide a finished edge. In machines of this class it is customary to provide an edge gage or turning post located at one side and below the shrinking tool, the purpose of said gage or post being to aid in presenting the leather properly to'said tool.

I In order that the presentation may be properly made it is desirable that the edge of the leather be crowded against said gage or post.

One feature of the present invention comprises means including an edge gage for feeding and directing the work, and guiding means for forcing the work against the gage, said means being adjustable to vary the force applied. In theillustrative machine this guiding means takes the form of a presser foot which acts as a sort of pivot and tends to swing the work against the gage; and means are provided for adjusting the position of the foot so as to vary the force of the swinging tendency.

In machines of the class described the edge of the leather passes from the hot tool to a molding member having a groove into which the edge of the leather is drawn by a feed member, said feed member being located in the rear of said tool and since the feed member is located as described, it is desirable that an auxiliary feeding means be provided to feed the first part of the leather to the tool and present it to the feed member. Otherwise if the leather is presented simultaneously to the tool and the feed member a small extent of the margin of the leather, dependent upon the distance from the tool to the feed member, will not be operated upon by said tool. With some parts of uppers such failure to act upon said small extent of margin is not objectionable, with others it is.

Another feature of the invention comprises auxiliary feeding means for the purpose described. These and other features of the invention, including certain details of construction and combinations of parts, will be described in connection with an illustrative machine and pointed out in the appended claims. Referring now to the drawings, Figure 1 1s a front elevation of a machine in which the present invention is embodied; Fig. 2 is a detail perspective showing the head or slide on which the shrinking tool and part of the feeding means are mounted; Fig. 3 is a detail perspective of the shrinking tool audits carrier; Fig. d is a detail perspective showing the manner in which the stem 99 of the guiding foot is held; Fig. 5 is a plan of a portion of the machine showing more particularly the relation of the shrinking tool to the feeding elements; Fig. 6 is a detail elevation showing the auxiliary feeding mechanism for presenting tips; Fig. 7 is a detail plan of a portion of this auxiliary feeding mechanism; Fig. 8 is an elevation showing the mechanism for operating the gages for the tips; Fig. 9 is an elevation of the auxiliary feeding mechanism for pre senting any sort of work to the feed mechanism; Fig. 10 is a detail perspective of a portion of the mechanism shown in Fig. 9; Fig. 11 is a plan of the mechanism for disconnecting part of the feed mechanism.

The illustrative machine comprises a hot tool held from movement in the line of feed and means for feeding the work past said tool in such manner as to shrink one side of the margin thereby causing the unshrunken side to curl toward the shrunken side. 7

Referring first to Figs. 1, 2, 6 and 11, the construction and operation of the feed mechanism will be described. The main driring shaft 1 carries at its inner end a friction disk 3 with which a second friction disk 5 contacts, said second disk being slidable on but keyed to a driving shaft 7. Suitable mechanism (not shown) is provided for adjusting the disk 5 so as to vary the rate of rotation of the shaft 1. Fast to the shaft 1 are two worms 9, 11. Meshing with a worm 9 is a gear 13 fast to an upright shaft 15 to the lower end of which is fast a second gear 17. This gear 17 is connected with a counter shaft 19 by a gear 21 which is slidable on said shaft but held for angular movement with respect thereto. The gear 21 is provided with a collar 23 which is embraced b a yoke '25 fast to an arm 27. Referring now to Fig. 11, this arm is pivoted at 29 to the frame of the machine and is held normally in the position shown by a spring 31. An arm 33 having a handle 35 is pivoted to the frame at 37 and is connected with the arm 27 by a link 39 so that the

gears

21 and 17 may be disconnected whendesired. Fast to the outer end of the shaft 19 is a gear 41, see Fig. 6, which meshes with a gear 413 carried by an upright shaft 4.5, said shaft 15 having fast to its lower end a gear -17 which meshes with a gear 49 fast to a second upright shaft 51. The shaft 45 carries a turn table 53 the uppersurface of which is flush with the surface of the work support or table 56. The shaft 51 carries a grooved disk or molding member 55 against which the edge of the work 100 rests. Located above the turn table 53 is a feed wheel 57 fast to a shaft 59' the axis of which is oblique to the axis of the shaft 19; and this shaft 59 carries a beveled gear which meshes with a beveled gear-63, see Fig; 2, fast to the lower end of a shaft 65, said shaft being driven from the main shaft 1 through a gear 67.

Referrin'gnow to Figs. 2 and 1, the shaft 1 other with a hook 79 adjustably fastened to the slide 71. The head of a screw 76 limits the downward movement of the slide 69. A lifter in the from of a bell crank lever 81 provides means for raising the slide or head 69 when a piece of work is being presented to the machine. Cooperating with the feed mechanism which has been described above is a preliminary edge gage 83 and a presser foot'85. These parts are both carried by a slide 87 mounted on the frame of the machine. The preliminary gage 83 has a cylindrical stem provided with a projection 89 which fits in a groove in the slide 87 and prevents the stem from turning.

.At the top of the stem is formed an arm 91. Pivoted on the slide 87 is a lever 95 having a beveled projection97 whichcooperates with an inclined surface on the under member 85 may be raised by swingingthe lever101, The presser foot 85 is adjustably held in a boss on the lower end of the stem 99 y 11 set screw 103 so that this foot may 13% adjusted forward and back in the direction' of feed. The slide 87 may be adjusted in a direction transverse to the line of feed by an adjusting screw105 which is threaded intov the-slide and held from longitudinal movement by a yoke 107, said yoke being rigid with the frame of the machine. In order to enable the operator toposition the slide 87 accurately a scale on said-slide cooperates with a stationary pointer. It is not desirable to raise the preliminary gage 83 when the head or slide 69 is raised, and consequently this member, except under particular circumstances presently to be described, is held down atall times against the work table by a spring 78. The presser or V guide foot 85, on the other hand, should be'raised when the head or slide 69 is raised to permit presentation of a piece of leather. The mannerin which the stem 99 of this member is held will be described later in connection with the tool carrier 7 Turning now to Fig; 3, in connection with Fig. 2, the construction and mounting of the shrinking tool will be described. The slide or head 69' which carries" the shaft 65' has a projecting horizontal guide 169 on which ismounted a slide 106, said slide being adjustable along said guide by means of a screw 1'07 held in a yoke 109 and threaded. into the slide 106. The slide 106 in turn is provided with a horizontal guideway inwhich is slidably mounted an extension of a two-part block 111 between the parts of which the hollow stem 113 of the shrinking tool is vertically adjustable. Threaded'into the block llllis an adjusting screw 115, said screw being rotatable in but held from longitudinal movement with respect to an angle iron 117 which is adjustably fastened to the slide 106 by a thumb screw 119 To the upper end of a stem 1'13 isclamped a block 121 provided with a yoke. Between the arms of the yoke is located a thumb nut 123 which is fast to a screw 125, said screw being threaded into a boss on the block 111 whereby the'stem 113 1nay readily be raised and Inside the hollow'stem-113 are.

lowered.

two half-round leads127, 129 separated by insulation 131. The upper ends of the leads are spread apart and each is provided with a thumb nut for attaching an electric terminal, notshown. 7 lead .is formed with a

spring yoke

133, 135

7 At its lower end each between the arms of which are clamped the ends ofa loop 137 of Wire made of platinum or other material having a high resistance? This loop of wire is the shrinking tool and when heated serves sear or burn one side of the margin of the leather. In order to protect the body of the leather from the heat of the tool 137 aguard 139 is carried by an arm which is fast to a block 1&1, said block being held on the stem 11$ by a screw 143. A finge 1&5 fastened to the guard 139 prevents the operating end of the tool from being bent upwardly.

The manner in which the stem 99 of the guiding foot 85 is held will now be explained. A lever 93 is pivoted at one end at M7 to the slide 106, the free end of the lever extending over .the projecting end of a bracket AC9 which is fast to said slide. A. plunger 151 acted upon by a. spring 153, the tension of which may be varied by turning the screw 155, tends atall times to swing the lever 93 downwardly about the pivot 147. The stem 99 has formed on its upper end a flat sector shaped projection which is inserted between the bracket 1&9 and the spring pressed lever 93. Consequently when the parts are in normal position the foot 85 is pressed down yieldingly upon the leather, but when the head or slide 69 and with it the tool carrier is raised, the bracket 1&9 by its upward movement raises said foot. When the margin of the piece of leather is fed beneath the hot tool 137 it is desirable that said margin be maintained beneath said tool at all times and that the extreme edge be bent upwardly to an extent suilicient to permit the tool to act upon one corner of the edge as well as upon t ie margin. To accomplish this result, well as to serve as a gage for the edge of the leather at the point where the burning is taking place, there is provided a member 157, see Figs. 2 and 5, which. serves as a gage for the edge of the leather, said gage having a projecting beveled lip 25? arranged to bend or turn the ed e upwardly and hold it up against the lower surface of the tool 137. in order to avoid confusion of terms this member will be referred to as an edge gage or turning post as distinguished from the preliminary edge gage 83. This gage or post is yieldingly mounted in a slide 80, said slide being provided with a slot through which passes the stem of a screw 82 and being hori zontally adjustable by means of an adjusting screw er which is threaded into the stem of the screw 82 and held from movement with respect to the slide 80 by a pin 86, said pin engaging an annular groove, not shown, in the stem of the adjusting screw 84-. With this construction the or turning post may be adjusted horizontally when desired. l-Yhen the head or slide 69 is raised the slide 80 rises with it, but the turning post isheld down upon the table by the spring 88.

In order to cause the gage or turning post to act in the manner which has been described above the. leather I is continually crowded over the lip and against the gage proper by the combined action of the elements of the feeding mechanism. Referring now to Fig. 5, the forward feeding of the leather is accomplished principally by the feed wheel 57 and the turn table 53, the disk having very little if any eifect in pulling the leather forward. it should be noted that the axis of the wheel 57 is located a little in the rear of the axis of the grooved disk 55. As viewed in Fig. 5 the direction of feed movement is from the bottom to the top of said figure, the tendency of the wheel 57 and turn table 53 being to crowd the leather against the gage 157 and into the groove in the molding disk 55. In order to increase this tendency if desired and tomcrease it in a desired degree, the guiding foot 85 is provided. If the leather is being fed forwardly in the general direction indicated by the feathered arrow and the guide foot 85 is held down upon the leather in the position indicated, said foot will exert a drag upon the leather which will crowd the edge of said leather against the gage or post 157 with a force dependent upon the force exerted by said guide foot upon said leather. The eifect of the guide foot 85 upon this crowding movement depends upon two factors, first the position f said foot and second the force with which it presses downwardly. Referring now to Figs. and 3, it will be seen that said foot may be ad iusted in the direction of feed by loosening the thumb screw 108 and transversely to said direction by turning the thumb screw 105; and that the vertical pressure exerted may be varied by turning the screw 155. The foot 85 acts as a pivot about which the leather tends to turn, this tendency serving to crowd the leather against the gage 157. This pivoting effect may be made very apparent by feeding to the machine a piece of leather having a. circular outline, the foot being placed in a position directly over the center of the turntable 5 As the work is fed along the pressure of the foot 85 should be just sufficient to -.rowd it properly against the gage. In other words. the leather should be allowed to slip sidewise when necessary; and to facilitate said slipping apiece of absorbent material saturated with oil is placed in a hole 159 in the table the lubrication then produced being particularly desirable with some kinds of leather which exude a more or less sticky substance. A. guard 181 extends over the turntable 163 and has a beveled edge which serves to scrape the sticky substance from said turntable. lVhen in operating upon a long vamp the throat is reached the action of the foot is no longer necessary since the tendency of the feed wheel 57 and the turn-table 53 is to pull the curved throat against the gage 157. .At such times the

levers

95 and 101 handle may be moved to disconnectthe disk and turn-table As soon as the throat has been passed the preliminary gage 83 and foot 85 are lowered and the disk 55 and turn-table 53 thrown into operation.

Itwill be observed from an inspection of Fig. 5 that the feed wheel 57 is located in the rear of the burning tool 137. Conse- "quently' when the work is presented in the manner which has been described above, a small extent of the margin at the point first presented to the machine will not be acted upon by the tool. With some of the parts of the uppers of shoes this is not objectionable, with others it is. For example, this failure to shrink the forward portion of the work' would be objectionable in tips or in foxings which are used to piece out Vamps.

It has been explained that the lever 81, see Fig. 2, is manipulated when a piece of work is'fed to the machine. When large pieces such, for example, as circular Vamps are being operated upon, this raising of the head is not objectionable since the operator has time while one vamp is going through to take up the next one and be ready toraise the head again. Vhen, however, certain small pieces, such for example as tips, are being operated upon it is desirable that a more rapid method of feeding them to the machine should be provided. To this end a pair of grippers, best shown in Figs. 6, 7 and 8, are arranged to be thrown into operation at will so as to operate continu'ously. lVhen these are operating all the operator has to do is to place the tips successively in the position shown in dotted lines in Fig. 7. The grippers then seize the tip, feed it forward, raise the head, lower it with the feed wheel 57 on the tip, and release the tip.

The lower gripper 163 has a hub 165 which is angularly movable on the upright shaft 15, there being rotatable on the lower end of said hub, as well as upon the upper end of a sleeve presently to be referred to, a stepped hub 166 provided with three sets of cams; and for convenience these cams will be referred to as the gripping cams, the advancing cams, and the releasing cams. The gripping cams 167 are arranged in a circle between the other two. The advancing cams 171 are arranged in a small circle above the gripping cams, and the releasing cams 173 are arranged in a larger circle below the gripping cams. The function of the gripping cams is to cause the grippers, when in the dotted line position of Fig. 7, to grip the stock, that of the advancing cams to move the grippers from dotted to full line positionof Fig. 7 and thatof the releasing cams to permit the grippers to be returned to the dotted line position of Fig. 7. There are the same number of cams in each of the three series and each cam of one series corresponds to a cam in each of the other two series.

Pivoted at 175 to the lower gripper, which itself has no vertical movement, is the upper gripper 177, said last named gripper being normally held raised by a spring 179 which is fast to the lower gripper 163. The lower gripper near its hub 165 carries a hardened block 181 which coiiperates with theadvancing cams 171 and the inner end of the upper gripper 177 coiiperates with the gripping cams 167. The hub 166 is vertically slidable on the hub. 165 as well as upon an upwardly extending sleeve 188 integral with a' gear 185 which isdriven continuously from the shaft 19 in the manner clearly shown in Fig. 1, said sleeve being of the same diameter as that of the hub. A pin 187, which'is received in a slot'in the sleeve 183 causes the stepped hub 166 to rotate with the gear 185 and a spring 189 tends always to hold said stepped hub 166 in raised position. Extending half way around the hub 166 is a semicircular bracket 191 provided on its under side at its extreme ends with. beveled cam surfaces which are inclined in opposite directions, one of said cam surfaces being shown at 193. This'cam surface is inclined downwardly away from the observer as viewed in Fig. 6 while the other cam surface, not shown, 'is inclined downwardly toward the observer.

The operation of the mechanism as thus far described is as follows: Starting with the grippers in the position shown in dotted lines in Fig. 7 and with the stepped h'ub 166 rotating in the direction indicated by the arrow, one of the gripping cams 167 moves beneath the inner end of the pivoted grip per 177 thereby closing the grippers against the force of the spring 179; next the corresponding cam 171 engages the hardened block 181.. and swings the grippers into the full line positionof Fig. 7; and finally the two diametrically opposite cams 173 engage the inclines 193 whereby the stepped hub 166 is forced down against the action of the spring 189 and the grippers are returned by a coiled spring 195 to the dotted line position. Further rotation of the hub 166 moves the two cams 17 3 which were in register with the inclines 193 out of register with said inclines whereby the stepped hub rises under the influence of the spring 189; and as the rotation of said hub proceeds the grippers are closed and swung in as has been described above, this intermittent forward and backward movement of the grippers beingcontinuous until the grippers are disconnected from their drivingmeehanismby the operator. In the position of the parts indicated in full lines the releasing cams 173 have engaged the inclines 193 and have forced down the hub 166 until the gripping cams 167 and the advancing cams 171 are about to be released. In order to prevent rebound of the grippers when they are returned by the spring 195 an arm or finger 197 fast to the hub 165 of said grippers drags against a spring 199. When it is desired to disconnect the grippers from their driving mechanism a fiat plate 201 is swung tothe left until it engages the tops of the cams 173 and holds the stepped hub down in inoperative position. The arm 197 is then thrown back and the grippers swung well to the right as shown in Fig. 1.

W hen the grippers swing forward to present the tip to the tool and feed mechanism it is desirable that the head which carries the feed wheel 57, the burning tool 137 and the guiding foot should be raised. In order to accomplish this automatically the gripper 163 carries a hardened block 202 which cooperates with a pivoted cam 203 to rock a lever 205, said lever being pivoted at a point not shown to the vertical slide or head 69. This lever 205 is loosely connected at 207 with a short lever 209 pivoted, like the lever 205, to the frame of the machine. To this short lever 209 is pivoted the cam 203 said cam being held normally in the position shown in Fig. 7 by a spring 211, a tail 303 of said cam contacting with the frame of the machine. When now the grippers are swung forward the block 202 passes beneath the cam 203 thereby rocking the

levers

209 and 205, and raising the slide 69. As the block passes from beneath the cam the spring 75, see Fig. 2, pulls the slide 69 down again, and as the grippers swing back the cam 203 is pushed out of the way of the block 202. Since the path of the grippers is fixed, gages 213 are provided for assisting the operator in placing the tip properly in position between the grippers. These gages are carried by an arm 215 pivoted beneath the table 217 and normally held depressed by a siring 219. The inner end of the arm 215 projects through the table into position to be engaged by a bell crank lever 22,1, pivoted at 223 to a bracket on the gripper 163, the horizontal arm of the bell crank lever 221 being loosely pivoted at 225 to the gripper 177. lVith this construction when the grippers are in the dotted line position the gages 213 are raised; but as soon as the gripper 177 is moved to grip the stock the gages are lowered so as to permit the tip to be swung forward. When, therefore, the work to be operated upon consists of tips, the grippers are rendered operative by swinging the plate 201 from the position shown in Fig. 1 to the position shown in Figs. 6 and 7; and all the operator has to do is to present the tips successively to the gages 213. The purpose of the gripper mechanism which has been described above is to feed the first portion of the tips to the tool and to present them properly to the feeding mechanism so that no further guiding of the work as it is being operated upon will be necessary. The grippers let go of the work as soon as the feed wheel 57 descends upon it; and the guiding foot is previously set in a position to crowd the work properly against the turning post.

To provide for operating readily upon foxings and certain other pieces, the feed mechanism, best shown in Figs. 9 and 10, has been designed. This mechanism comprises a pair of

reciprocating grippers

227, 229 which reach forward under the tool and at one side of the feed wheel 57 after said wheel and tool have been raised, seize the work at a point a little to one side of the edge which is to be operated upon, and, after the feed wheel and tool have been lowered, draw the work back beneath the tool until it is engaged by the feed wheel which then completes the feeding movement. The grippers are closed by the descent upon the upper gripper 227 of a roller loose on the shaft of the wheel 57, are kept closed upon the work by the pressure of said roller, and are opened when they are pulled back from beneath said roller. The lower gripper 229 is fast to a slide 231 which is slidable on a guide 233. A pin carried by said slide and extending through a slot in said guide has attached, to it a spring 237 which normally holds the slide retracted as shown. The grippers are pivoted together at 239; and the upper gripper has a weighted tail 241 which, in the extreme rearward position of the grippers cooperates with an inclined surface 243 to hold the grippers closed so as to permit the work to pass over them. In this connection it should be noted that the grippers slide in a slot in the table and that the upper surface of the upper gripper is flush with the surface of the table. A

spring pressed plunger 92 acts in conjunction with the tail 241 to open the grippers when permitted.

Fast to the rock shaft 245 located beneath the table is an arm 247 to an extension of which the spring 237 is fast, said arm being adapted when swung forward to actuate the gripper slide 231. Extending from the hub of the arm 247 is a second arm 249 from which depends a hook 251 for connection with a chain of a treadle, not shown.

Spaced from the hub of the

arms

247, 249 and fast to the rock shaft 245 is an arm having a pin 255 which when the arm is depressed strikes an arm 255 loose on said rock shaft and moves said arm downwardly. This last named arm 255 is pivoted to a link 259 which at its upper end, see Fig. 6, is pivby a spring 265.

oted to the lifting lever 205. Vhen, therefore, the treadle is depressed to rock the shaft 2 15 the slide (39, see Fig. 2, which carries directly or indirectly the burning tool and parts of the feeding mechanism is raised so as to permit the grippers to pass underneath the roll 90 into position to have the work presented to them. In Fig. 9 the dotted line position of the grippers shows them after the roll 90 has closed upon them during the time they are being retracted to feed the first portion of the work.

Inasmuch as the grippers are kept open until the roll 90 descends upon the upper gripper, it is necessary to hold the grippers for a moment in their forward position after the treadle is released in order to give time for the roll to descend. For this pur pose a latch 261 is pivoted at 263 to the frame of the machine and is normally held up against the underside of the slide 231 This latch is provided with a notch 267 to receive the rear end of the slide 231 and with a cam surface 269 to en a e a )in 271 set in the arm A spring 273 normally holds the parts in the position shown. When the treadle which is attached to the hook 251 is depressed and the griipers moved forward the tail 24:1 runs off from the incline 2-13 whereupon the grippers open. Before the forward end of the grippers reaches the roll 90 said roll is raised through the link 259. hen the grippers are in their extreme forward position and while the operator still has his foot on the treadle the edge of the work is placed between the jaws of the grippers. The treadle is then released to permit the spring 27 3 to draw back the arm 2&7 and the slide 231. The slide, however, is held until the pin 271 rides up the incline 269 to release the latch 261, and during this time the roll 90 descends and closes the grippers. The grippers then move back drawing the margin of the work along beneath the tool 137 and are opened when they pass from beneath the roll 90. As soon as the tail 241 rides up the incline 2&3 the grippers are closed and the parts come to rest in the position shown in Fig. 9, the feeding of the work being continued by the regular feed mechanism. Below the table,

as best shown in Fig. 1, is a rheostat of usual form for controlling the degree of heat used. The wires which run up to the

terminals

127, 129 have been omitted to promote clearness in the drawing.

The present machine is an improvement upon the machine of my prior application Serial No. 800,7 93, and certain features not herein claimed form the subiectmatter of claims of said prior application.

Although the invention has been set forth in connection with a particular machine it should be understood that the invention is not limited in the scope of its application to the particular machine shown and de scribed.

Having thus described my invention, I

having, in combination, a support for the 7 work, a shrinking tool for operating upon the margin of the work, aturning post for holding said margin against said tool, feed means cooperating with said feeding means to crowd the edge of the work against. said post, a spring for forcing said guiding means against one surface of the work, and means for *arying the tension of said spring.

2. A' machine of the class described, having, in combination, a support for the work, a shrinking tool for operating upon the margin of the work, a turning post for holding said margin against said tool, feeding means including a turn table substantially flush with said work support, and a feed wheel the plane of the path of rotation of which is at an angle to said support, a molding member the axis of which is located at one side of the axis of-said turn table, and a foot of small area arranged to exert a drag on the work at a point at one side of said turning post.

3. A machine of the class described, having, in combination, means engaging both sides of the work to feed it, an edge mg. means for advancing the work, guiding gage, and astationary member arranged to contact with one sideof the work and thereby exert a drag upon it at a point spaced from said gage. I

4;. A machine of the class described, having, in combination, means engaging both sides of the work to feed it, an edge gage, and a stationary member arranged to contact with one side of the work and thereby exert a drag upon it at a point spaced from said gage, said member being adjustable.

5. A machine of the class described, having, in combination, means engaging both sides of the work to feed it, an edge gage, and a stationary member arranged to contact with one side of the work and thereby exert a drag upon it at a point spaced from said gage, said member being adjustable in the direction of the feed movement.

(3. A machine of the class described,

having, in combination, means engaging having, in combination, means engaging both sides of the work to feed it, an edge gage, and a stationary member arranged to contact with one side of the work and thereby exert a drag upon it at a point spaced from said gage, said member being adjustable in the direction of the feet movement and at an angle thereto.

8. A machine of the class described having, in combination, positively actuated means engaging both sides of the work to feed it, an edge gage having an inclined lip for causing the edge of the work to be directed upwardly, and a member for exert ing a drag on the Work at one side of said gage to force the edge of the work up over said lip during the feeding movement.

9. A machine of the class described having, in combination, positively actuated means engaging both sides of the Work to feed it, an edge gage having an inclined lip for causing the edge of the work to be directed upwardly, and a member for exerting a drag on the work at one side of said gage to force the edge of the work up over said lip during the feeding movement, said member being adjustable to vary said force.

10. A machine of the class described having, in combination, positively actuated means engaging both sides of the work to feed it, an edge gage having an inclined lip for causing the edge of the work to be directed upwardly, and a member for exerting a drag on the work at one side of said gage to force the edge of the work up over said lip during the feeding movement, said member being adjustable in the direction of the feed movement.

11. A machine of the class described having, in combination, positively actuated means engaging both sides of the work to feed it, an edge gage having an inclined lip for causing the edge of the work to be directed upwardly, and a member for exerting a drag on the Work at one side of said gage to force the edge of the work up over said lip during the feeding movement, said member being adjustable in a direction at an angleto that of the feed movement.

12. A machine of the class described having, in combination, positively actuated means engaging both sides of the work to feed it, an edge gage having an inclined lip for causing the edge of the Work to be directed upwardly, and a member for exerting a drag on the Work at one side of said gage to force the edge of the work up over said lip during the feeding movement, said mem ber being adjustable in the direction of the feed movement and at an angle thereto.

13. A machine of the class described having, in combination, means for engaging both sides of the work to feed it, a support for the Work, an edge gage, and a stationary member having a small operative face armember having a small operative face arranged to press the work against the support at a point at one side of said gage, whereby as said work is fed forward said member tends to swing the work so as to crowd the edge against said gage, said mem-' ber being adjustable to vary the intensity of said swinging tendency.

15. A machine of the class described having, in combination, a support for the work,

a heated tool for operating upon the margin of said work, a feed wheel for engaging the upper side of said work, a carrier in which said tool and wheel are mounted, and means for raising said carrier to permit a piece of work to be placed with a portion of its margin beneath said tool and wheel.

16. A machine of the class described having, in combination, a support for the work, a heated tool for operating upon the margin of the work, a combined edge gage and turner located adjacent to said tool, a feed wheel, a slide by which said tool and wheel are carried, and means for raising and lowering said slide.

17. A machine of the class described having, in combination, a support forthe work, a heated tool for operating upon the margin of the work, a combined edge gage and turner located adjacent to said tool, a feed wheel, a slide by which said tool and wheel are carried, and means for raising and lowering said slide, said edge gage being adjustable with respect to said slide.

18. A machine of the class described having, in combination, a support for the work,

a heated tool for operating upon the margin of the work, a combined edge gage and turner located adjacent to said tool, a feed wheel, a slide by which said tool and wheel are carried, and means for raising and lowering said slide, said tool being adjustable with re spect to said slide.

19. A machine of the class described having, in combination, a supportfor the work, a heated tool for operating upon the margin of the work, a combined edge gage and turner located adjacent to said tool, a feed Wheel, a slide by which said tool and wheel are carried, and means for raising and lowering said slide, said members being adjustable with respect to said slide.

20. A machine of the class described having, in combination, a support for the work,

a slide capable of being raised and lowered with respect to said support, a tool carrier adjustably mounted on said slide, and a heated tool adjustably mounted in said carrier.

21. A machine of the class described having, in combination, a support for the work, a slide capable of being raised and lowered with respect to said support, a tool carrier adjustably mounted on said slide, a heated tool adjustably mounted in said carrier, a guiding foot having a vertically slidable stem, and a spring located between said tool carrier and said stem.

22. A machine of the class described having, in combination, a support for the work, a slide capable of being raised and lowered with respect to said support, a tool carrier adjustably mounted on said slide, a heated tool adjustably mounted in said carrier, a preliminary gage having a vertically slidable stem, and a spring located between said tool carrier and stem.

23. A machine of the class described having, in combination, a support for the work, a tool for operating upon the work, means located in the rear of the tool for feeding the work, and auxiliary feeding means constructed and arranged to feed the first portion of the work past the tool and to present it to said first named feeding means.

24. A machine of the class described having, in combination, a support for the work, a tool adapted to operate upon the work, a feed wheel, a pair of grippers, means for raising said tool and feed wheel. and means for causing the grippers first to seize the work and feed it along said support beneath said tool and wheel and thereafter to release the work to permit the feed wheel to complete the feedin movement.

25. A machine of the class described having, in combination, a support for the work, a tool for operating upon the work, means located in the rear of the tool for feeding the work, and treadle operated auxiliary feeding means for feeding the first portion of the work past said tool and presenting it in operative relation to said first named feeding means.

' 26. A machine of the class described having, in combination, a support for the work,

a carrier movable toward and from said support, a tool and a feed member mounted in said carrier, auxiliary feeding means for the purpose described, and treadle operated means for raising said carrier and operating said auxiliary feeding means. 7

27. A machine of the class described having, in combination, a support for the work, a tool for operating upon the work, means located in the rear of the tool for feeding the work, a pair of grippers slidable in a slot in the support and located in the rear of said tool and feeding means, and means for causing said grippers to reach forward, seize the work, and draw it under the tool and into position to be engaged by the feeding means. 7 1 7' g V 28. A machine of the class described having, in combination, a support for the work, a tool for operating upon the work, means located in the rear of the tool for feeding the work, a pair of grippers slidable in a slot in the support and located in the rear of said tool and feeding means, means for successively raising the tool and one member of the feeding means and for causing said grippers to move into position to seize the work at a location in advance of said tool, and means for thereafter lowering said tool and member and returning said grippers to normal position.

29. A machine of the class described having, in combination, a supportfor the work, a carrier, a spring tending to move said carrier toward said support, a tool and a feed member mounted in said carrier, a pair of grippers, means for raising said carrier, means for opening said grippers and moving them into position beneathsaid carrier, means for lowering said carrier to bring the tool and feed memberinto operative relation to said work and to close said grippers on the work, means for withdrawing said grippers, and means for opening said grippers to release the work when said grippers pass from beneath said carrier.

30. A machine of the class described having, in combination, a support for the work, a tool, a feed member located in the rear of said tool, a pair of grippers slidable in a slot in said support, one of said grippers having a weighted tail, an incline'normally in engagement with said tail to hold said grippers closed, and means for causing said grippers to make a reciprocation, said tail serving first by its weight to open said grippers and finally by contact with said incline to close said grippers;

31; A machine of the class described having, a tool, a feed member located in the rear of said tool, an auxiliary feed mechanism adapted to feed the first portion of the work past said tool and to present it to said feed member, means for swinging said feed mechanism intermittently, and means operated by said swingingimovement for raising said tool and feed member.

' 32. A machine of the class described having, in combination, a support for the work, a tool, a feed member located in the rear of said tool, an intermittentlyoperated pair of grippers arranged to swing over said support, a gage for positioning the work with respect to the grippers, and meansresponsive'to the swinging movement of said grippers for moving said gage to operativeposi- 7 tion. I V

33. A machine ofthe class described havmg, in combinatlon, a support forthe work,

in combination, a support for the work,

i is

i a tool, a feed member located in the rear of said tool, a carrier in which said tool and member are mounted a lever pivoted to said carrier, a pair of grippers arranged to swing over said support to present the work to said tool and member, and means carried by said grippers for moving said lever to raise said carrier.

34. A machine of the class described having, in combination, a support for the work, a shrinking tool for operating upon the margin of said work, a turning post for holding said margin against said tool, means acting in the rear of said tool for feeding the work, and auxiliary feeding means constructed and arranged to feed the first portion of the Work past the tool and to present it to the feeding means.

35. A machine of the class described having, in combination, a support for the work, a shrinking tool for operating upon the margin of the work, a turning post for holding said margin against said tool, feeding means for advancing said work, and guiding means cooperating with said feeding means to crowd the edge of said work against said post.

36. A machine of the class described having, in combination, a support for the work, a shrinking tool comprising a heated loop of wire for operating upon the margin of said work, means for causing said tool to traverse said margin, and means for preventing the end of said loop from being bent upwardly.

37. A machine of the class described having, in combination, a support for the work, a shrinking tool, for operating upon the margin of said work, feeding means including a turn-table, mechanism for rotating said turn-table, and means for disconnecting said mechanism from said turn-table.

38. A machine of the class described having, in combination, a support for the work, a shrinking tool for operating upon the margin of said work, a molding member for acting upon the edge of the work after the operation of said tool, mechanism for rotating said member, and means for disconnecting said member from its rotating mechanism.

39. A machine of the class described having, in combination, a support for the work, a shrinking tool for operating upon the margin of said work, a turning post, means for feeding the work, a guiding member for crowding the edge of the work against said post, and means for moving said member into inoperative position.

40. A machine of the class described having, in combination, a support for the work, a shrinking tool for operating upon the margin of the work, a turning post, means for feeding the work, a preliminary edge gage, and means for moving said gage to in operative position.

In testimony whereof I have signed my name to this specification.

HERBERT ELLIOT ENSLIN.

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. 1,203,993, granted November 7, 1916, upon the application of Herbert Elliot Enslin, of Malden, Massachusetts, for an improvement in Edge-Finishing Machines, errors appear in the printed specification requiring correction as follows: Page 2, line 4, for the word for read from; same page, line 68, for the Word my read by; 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 February, A. D., 1917.

[SEAL] R. F. WHITEHEAD,

Acting Commissioner of Patents. Cl. 691.