US1018859A - Welt-butting machine. - Google Patents

Description

E. E. WINKLEY.

WELT BUTTING MACHINE.

uruoumn FILED Jun 15, 1908.

Patented Feb. 27, 1912.

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E. E. WINKLEY. WELT BUTTING MACHINE.

APPLICATION FILED JUNE 15, 190B.

Patented Feb. 27, 1912:

7 SHEETS-SHEET 2.

5' mwemkx E. E. WINKLEY.

WELT BUTTING MACHINE.

APPLICATION FILED JUNE 15, 1908. 1,018,859. Patented Feb. 27, 1912.

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Wwses 7 Mm?" E. E. WINKLBY. WELT BUTTING MACHINE. ARPLIOATION FILED Jun 15, 1908.

1,018,859. Patnted Feb.27, 1912.

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Cowman FLANoonAPl-l cm. WASHINGTON. n.

E. B. WINKLEY. WELT BUTTING MACHINE.

APPLICATION FILED JUNE 15, 1908.

1,018,859. Patented Feb.27, 1912.

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E. E. WINKLEY.

' WELT BUTTING MACHINE.

APPLICATION IILED JUNE 15, 1908.

Patented Feb. 27, 1912.

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WELT BUT'I'ING HINE. APPLIOATION FILED JUNE 15, 19QB. 59 Patented Feb. 27, 1912.

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COLUMBIA PLANUGRAPH CID-,WAS NNNNNNNNNN c ERASTUS E. WINKLEY, F LYNN, MASSACHUSETTS.

WELT-BU'ITING MACHINE.

Specification of Letters Patent.

Application filed June 15. 1908.

Patented Feb. 2'7, 1912.

Serial No. 438,493.

To all whom it may concern Be it known that I, ERAsTUs E. VVINKLEY, a citizen of the United States, residing at Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Welt-Butting Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

In the manufacture of welted shoes it is desirable, before the outsole is laid, to trim the ends of the welt so as to cause them to terminate at a point about opposite the heel breast line. The severance is preferably by means of a beveled cut, to impart a neat finish to this part of the shoe. A machine for performing this operation is called a welt but-ting machine.

The present invention is, in part, an improvement upon the type of welt butting machine illustrated and described in the inventors co-pending application Ser. No. 437,281, filed June 8, 1908. In this application and in all prior machines, proposed for performing this operation, such as are known to the inventor, it is necessary for the operator to manipulate the shoe while positioning it in the machine in a manner to cause the welt to properly engage with the operating instrumentalities.

The general object of the present invention is to produce a machine which is auto matic in this respect, so that after the operator has inserted a shoe in the machine, the operating instrumentalities automatically find and properly engage the extremities of the welt, regardless of variations in the size or style of the shoes or the condition of the welt and upper. In its broader aspects, however, the present invention is not limited to an automatic operation of means to attain this object but includes within its purview means under control of the operator for moving the welt butting means in a path to find and engage the welt.

A further object of the invention is to produce a machine which is adapted to properly engage and operate upon both sides of the shoe at once.

To the accomplishment of these objects and such others as may hereinafter appear, as will be readily understood by those skilled in the art, the invention comprises the features and combination of parts herein-,

after described and particularly pointed out in the appended clauses.

The various features of the invention will be best understood from a description of one embodiment thereof, such, for instance, as illustrated in the accompanying drawings, in which:

Figure 1 is a front elevation, Fig. 2 is a plan with the cover plate partly broken away, Fig. 3 is a side elevation, Fig. 4 is a section, in elevation, on the line 4-4. of Fig. 2. Figs. 5 to 8 are details of the supports for the actuating mechanism, Fig. 9 is a front elevation, in detail, of the actuator for opening the cutter carrying heads, Fig. 10 is a front elevation with the cutter carrying heads and the mechanism for opening them removed, Fig. 11 is a front elevation, in detail, of the actuating levers which engage the operating cams, Fig. 12, is a plan, partly in section, of the mechanisms for supporting and operating the welt butting devices, Fig. 13, is a side elevation, partly in section of the parts shown in Fig. 12, Fig. 18 shows the location of the welt butting knife while the shoe is being positioned, Figs. 14:, 15 and 16 are diagrammatic views in transverse section showing the mode of operation of thedevices for finding and engaging the welt, and Fig. 17 is a detail, in perspective of one of the welt supporting and cutting plates.

Theembodiment of the invention selected for illustrative purposes comprises as its operating instrumentalities; a shoe rest to determine the point at which the welt is cut and against which the shoe to be operated upon is held sole up by the operator; two cutting plates, shown as beveled ofl:' fingers or blades, which are automatically inserted between the welt and the upper of the shoe and which act as welt supporters; two outters, which cooperate with the cutting plates to sever the ends of the welt at the desired point and with a suitable bevel; and two presser feet to smooth out the ends of the welt in advance of the cutters and to hold the welt down upon the cutting plates. These operating instrument-alities are preferably provided with automatic mechanism for actuating them to cause proper engage ment with and operation upon the shoe without any manipulation or skill on the part of the operator who merely has to place the heel of the shoe against the shoe rest.

Referring now more particularly to Figs.

3 and 4, a shoe rest 1 is provided with a depending portion 2 against which the heel of the shoe is thrust, the shoe being held sole up by the operator. The shoe rest has a horizontal portion 3 to engage the heel seat and position the shoe vertically relatively to the welt butting devices. In order that the shoe rest may be made adjustable for different styles or sizes of shoes, itismounted upon a spindle 4 having a lower extremity threaded into the shoe rest, (Fig. 4) and a hand wheel 5 at the upper end. This spindle passes through a slide block which is mounted in dovetailed ways 7 in an arm 8 fixed to the frame of the machine. The spindle 4 passes through a slot in the arm 8 and is provided with a collar 9 to prevent vertical movement in the slide block 6. A binding screw 10 provided with a handle 11 is theaded into the arm 8 and operates to fix the slide block in position in the ways 7. By loosening the binding screw the block may be moved forward or backward, carrying the shoe rest with it to position it in accordance with the distance from the heel at whichitis desired to sever the welt. By turning the hand wheel 5 the shoe rest may be raised or lowered upon the spindle 4 to accommodate varying styles of lasts. A pin 12 projecting upwardly from the shoe rest engages a socket in the slide block 6 and prevents rotation. of the shoe rest during its vertical adjustment. One each, of the cutting plates 13, the cutters 16, and the presser feet '17, are cooperatively mounted in independent heads 18 located at each side of the shoe rest 1 and supported and actuated by mechanism for moving them with respect to the shoe held. between them by the operator. As shown in Figs. 4 and 17, each cutting plate 13 consists of an elongated, beveled blade projecting laterally from a shank 19 suitably positioned on the head 18. This blade is provided with a blunt extremity 14 having a rounded under shoulder 15 for a purpose to be presently described. The cutter 16 has a horizontal lower surface with a sharpened rear edge, and is fixed by a screw 20 to a cutter carrier shown as a slide 21 moving in the interior of the head 18. Theslide 21 isprovided with a slot 22 at its rear end through which is passed a screw 23 acting as a fulcrum for said slide. The cutter carrier may, therefore, oscillate in the head about the screw 23 as a center,

or it may reciprocate in the head past said,

screw. The slide 21 is provided with a depending lug or shoulder 211 at its rear end which is engaged by a spring pressed plunger 212 mounted in a socket on the rear end ofrthe head 18. This'plunger keeps the weltbutting' cutter normally raised and remote from its cutting plate as shown in Fig. 13. The purpose of this initial relation of the cutter and cutting plate will appear hereinafter. Within the head 18 and above the cutter is n actuator, shown as a slide 251, connecte by means of a rod 25 with means for actuating it to cause the cutter to sever the welt. The actuator 251 is provided at its forward end with a wedge surface 252 adapted to engage a cooperating wedge surface 253 on the forward end of the cutter carrier. On a movement of the actuator 251 backwardly the engagement of the wedge surfaces acts to first place the cutter 16 1n proper cutting position by an angular downward movement about the screw 23, and then to draw the cutter carrier backward, against the force of the plunger 212, to butt the welt. The cutter carrier moves within the head 18 and during its backward movement is held in proper relation to the cutting plate 13 by being held in engagement with a shelf on the head on which it slides. The carrier is held in engagement with the shelf by the wedge surface 252 and a lug on the actuator 251, bearing on its upper side (see dotted lines Fig. 13). The presser foot 17 is pivoted at 117 on the cutter carrier 21 and is provided with a horizontallyproject-ing extremity 118 which engages the upper surface of the welt in advance of the cutter, and with an upwardly-extending arm 119 (Fig. 13) which is engaged by a spring pressed plunger 120 operating to yieldingly hold the presser foot against the work. A stop pin 121 limits the downward movement of the presser foot.

The instrumentalities thus far described are those which operate upon the shoe, and their mode of operation may best be described at this point, the mechanism for actuating them being described thereafter. As shown in Fig. 14, the heads 18 are separated, when the machine is at'rest, sufficiently to permit a shoe to be inserted between them and positioned against the shoe rest. At this time the heads occupy an inclined position, so that the cutting plates and cutters slant upwardly toward their extremities, and at this time the heads are also in a depressed position with relation to the shoe rest. The operator, having inserted a shoe, sets the machine in motion by throwing in a clutch, and the first step in the operation of the machine is to bring the heads yieldingly toward each other until the rounded under edges of the blunted extremities of the cutting plates engage, and are arrested by, the sides of the shoe below the welt and at the roper distance from the end of the heel, w ich distance is determined by the position of the shoe rest. The next step in theoperation of the machine is to cause the heads to rise, also yieldingly, so thatthe cutting plates slide upwardly on the sides of the shoe until they engage the lower sur faces of the projecting margins of the welt (Fig. 15). The angle of the heads and the vertical distance between the cutters and cutting plates are such (Fig. 14), that the ends of the cutters project above the welt while the cutting plates remain below the welt. At this point the upward movement of the heads is arrested, and the third step in the operation of the machine is a combined movement of the heads consisting in a parial rotation into theangular position of Fig. 16, in which the cutting plates and cutters are substantially horizontal, and a resulting continuation of the arrested movement of the heads toward each other, so as to cause the cutting plates to be introduced lengthwise into the bottom of the crease between the welt and the upper. The rounded under edges of the extremities of the cutting plates prevent them from injuring the shoe upper where they come in contact therewith. The position of the cutters, some distance above the cutting plates, places them in proper position to pass above the welt into cutting position as the heads are rotated. After the cutting plates have assumed the position shown in Fig. 16, the cutters are moved horizontally across the cutting plates into the position shown in Fig. 4, thereby severing the welt ends then supported by the cutting plates. ()wing to the beveled upper surface of the cutting plates the welt is severed on a bevel ending with a sharp edge, as is desirable in this operation. During the operation of the cutters the presser feet act in advance thereof to hold the welt down against the cutting plates. After these operations have been performed the parts are automatically returned to their original positions, and the machine again comes to rest.

The mechanism for actuating the heads 18 and the other moving parts will now be described.

The heads are mounted upon shanks 26 fixed to horizontal rock shafts 27 (Fig. 12). The rock shafts are journaled in hangers 28, the form of which is shown more paricularly in Figs. 7 and 8. The hangers 28 are provided with sleeves 29 and 30 in which the rock shafts are journaled thus providing for a partial rotation of the heads upon a horizontal axis. In order to provide for horizontal movements of the heads toward and from one another, the hangers 28 are provided with vertically arranged sleeves 31. and 32, in which are fixed pivot pins 33 by means of which the hangers 28 are fulcrumed upon hangers 34. The form of the hangers 34 is shown more particularly in Figs. 5 and 6.

To provide for vertical movements of the heads 18 the hangers 34 are provided with horizontal sleeves 36 by which they are fixed to horizontal rock shafts 37 (Fig. 10) journaled in bosses 38 on the frame of the machine. This construction provides for an oscillation of the heads about the centers of the shafts 37, which result-s in a substantially vertical movement in the heads.

The means for oscillating the rock shafts 27 is shown more particularly in Fig. 10. Collars 40 (Fig. 12) fixed to the rock shafts between the sleeves 29 and 30 are provided with upwardly-extending arms 41, connected by means of links 42 with slide blocks 43 mounted, for convenience, to slide on the rock shafts 37, and provided with annular grooves engaged by collars 44. The collars 44 are pivotally connected with yokes on the upper ends of cam levers 45 fulcrumed at 46 on the frame of the machine and provided at their lower ends with cam rolls 47 engaging face cams 48 on the cam shaft 50 journaled in the frame of the machine. Springs 51 connected with the lower ends of the levers 45 operate to hold the cam rolls normally against the cams.

The means for imparting horizontal or opening and closing movements to the heads about the pivot pins 33 is shown more particularly in Figs. 4 and 9. The hangers 28 are provided with inclined surfaces 52 engaged by a Wedge block 53 fixed to a rod 54 sliding vertically in the frame of the machine. Adjustable collars 55 are mounted on the rod 54, and engage pins 56 in the yoked end of a cam lever 57 which is fulcrumed on the frame of the machine, and provided at its rear end with a cam roll 58 engaging a cam 59 on the cam shaft 50. hen the machine is atrest the cam 59 is in such position that the rod 54 is drawn down against the resistance of a spring 60, which engages the lower end of the wedge block 53, so that the heads 18 are forced apart in position to receive a shoe between them. The rotation of the cam 59 in the operation of the machine permits the rod 54 to rise under the influence of the spring 60 and the heads 18 are then drawn yieldingly together by means of springs 39 connected, as shown in Fig. 12, between arms on the hangers 28 and a pin on the frame of the machine. As soon as the cutting plates or Welt supporting blades engage the sides of the shoe. however, this movement of the heads under the influence of the springs 39 is arrested, and the remainder of the upward movement of the wedge block 53, under the action of the cam 59, is an idle movement. In the later operation of the machine when the heads rise and the cutting plates are thus caused its cam and thus againforces the heads .1

apart ready, for the reception of anothe 7 shoe. 1

Owing to the presence of an unsecured portion of the upper at the end of the inseam due to the inability of the operator at the Welter to sew immediately adjacent the heel seat tacks, as will be readily understood by those skilled in the art, the upper at this point on each side of the shoe is loose and stands outwardly from the last. The free ends of the welt are also drawn outward, out of proper butting position by this loose portion of the upper; The upward and inward movement of the cutting plates or blades 13 acts, therefore, not only to place the welt in proper horizontal relation to the cutters but also moves the free ends of the welt inward, by a tightening of the upper, and thus places the welt ends in proper alinement with the stroke of the cutters so as to be squarely and evenly butted. The presser feet 17 acting in advance of the cutters cotiperate with the cutting plates to lay the welt in position to be properly severed by the cutters.

The means for swinging the heads. about the rock shafts 37 to move them vertically is shown more particularly in Figs. 11, 12 and 13. The hangers 34 are provided with up wardly-extending arms 61 to avoid inter ference with the arms 41, as shown in Fig. 13. Springs 63 are connected with pins 62 on the arms 61 and are fixed at their rear ends to the frame of the machine. These springs tend constantly to raise the heads 18 about the rock shafts 37 as fulcra. The hangers 34 are provided with horizontal pivot pins 65 below the rock shafts 37 by which they are connected, through links 66, with bell-crank levers 67 loosely journaled on a rod 68 mounted in the frame of the machine. The bell-crank levers 67 have horizontal arms provided with cam rolls 69 engaging cams 70 on the cam shaft 50. When the machine is at rest the heads are maintained in their depressed position, owing to the design of the cam mechanism, but the rotation of the cams 70 in the operation of the machine permits the springs 63 to raise the heads until the movement is arrested by coming in contact with the lower surface of the welt.

The means for actuating the cut-ters is shown more particularly in Figs. 12 and 13. The rods 25 above described, which are connected with the cutter slides 21, pass through 81 on the cam shaft 50. This cam is formed to impart a cutting stroke to the cutters at the proper time, and the parts are then returned to their original position by a spring 77 connected with an arm 7 6 on the sleeve 75, and secured, by an adjusting rod 78, to the frame ofthe machine.

The machine is provided with any convenient form of start and stop motion employing, preferably, a single revolution clutch. This mechanism is indicated generally in Figs. 1, 2 and 3 and includes a friction clutch comprising a loose belt pulley 82 mounted for longitudinal movement on the driving shaft 139 and a clutch member 83 rigidly secured to said'shaft. The clutch is thrown in by means of a treadle (not shown) on a suitably connected treadle rod 84 and is disconnected at the completion of a single revolution by appropriate automatically operating devices. The usual brake 85 acting on a brake wheel 86 is also provided. The driving shaft 139 is provided with a pinion 96 meshing with a gear 97 on the cam shaft 50 through which connection rotary motion is imparted to the .cam shaft.

The machine above described is entirely automatic in its operation upon the shoe, and the welt-butting devices are actuated to properly engage the welt, regardless of wide variations in size and style of the shoe or in the condition of any particular shoe with respect to the inseam and welt. Owing to the fact that the cutting plates engage the shoe below the welt, and then move upward into contact with the under surface of the welt, the operation of the machine is not obstructed by accidental variations in the form or position of the welt, as, for example, where the edge of the welt is bent downward against the sides of the shoe, as frequently occurs. In such a case the cut ting plates will bend the welt upward and insinuate themselves into the crease between the welt and the upper as readily as though the welt were not bent. By making the operative movements of the welt-butting de vices yielding in character, that is, by actuating them through the instrumentality of springs rather than positively, the parts conform to variations in the size of the shoes operated upon without special adjustment of the machine.

While the invention has been described and shown as embodied and, is preferably embodied, in a machine for operating upon both free ends of the welt simultaneously, it will be apparent that many features of the invention may be embodied in a machine arranged to operate upon only one side of the shoe at a time. The position of the work, with the bottom of the shoe upward, is considered the most convenient position, and the machine is therefore arranged to operate upon a shoe in this position. It will be .to describe, in a convenient manner, the

position and movements of the parts with relation to the shoe, and regardless of the position of the latter.

Where in the claims the term cutting late is used, it will be understood that 15 P the claims are not intended to be limited to the use of the particular device used for purposes of illustration and explanation, but that the term is intended to cover a member of any form which is introduced between the welt and the upper, and participates in the operations upon the welt.

The invention is not in general limited to the details of construction and operation of the illustrative embodiment, but may be embodied in other forms broadly defined in the claims.

Having now described the invention, what is claimed as new is 1. A welt butt-ing machine, having in combination, a welt butting center, a cutting plate for engaging beneaththe welt, and mechanism to cause the cutting plate to advance toward the welt and automatically find the welt crease.

2. A welt butting machine, having in combination, welt butting means including a welt support and mechanism operating automatically to cause said support to find and engage the under side of the welt and to enter the crease between the welt and the upper.

3. A welt butting machine, having in combination, welt butting means comprising a cutting plate and a cutter, mechanism operating automatically to cause the cutting plate to find and engage the under side of the welt and enter the crease between the welt and upper, and means for actuating the cutter to sever the welt while so supported.

4. A welt butting machine, having in combination, welt butting means comprising a cutting plate and a cutter, and mechanism operating to cause the cutting plate to find and engage the under side of the welt while in an inclined position and then swing into a substantially horizontal position and enter the crease between the 'welt and the upper, and means for actuating the cutter to sever the welt while so supported.

5. A welt butting machine, having in combination, welt butting means including a welt support at each side of the shoe, and mechanism operating to move said supports against the opposite sides of the shoe below the welt, and then raise them into contact with the under side of the welt and insert them in the crease between the welt and the upper.

6. A welt butting machine, having in combination, welt butting means including two devices for engaging the Welt on opposite sides of the shoe, and mechanism for moving the devices vertically to find the welt crease and then horizontally to move the welt inward into butting position.

7. A welt butting machine, having in combination, welt butting means at opposite sides of the shoe, each comprising a cutting plate and a cutter, heads in which the welt butting means are mounted, mechanism for moving the heads first toward the sides of the shoe, then toward the bottom of the shoe to place the cutting plates in the welt crease, and for partially rotating the heads to place the cutters and welt in operating osition, and means for actuating the cutters to sever the two free ends of the welt.

8. A welt butting machine, having in combination, welt butting means comprising a cutting plate and a cutter, mechanism for automatically inserting the cutting plate in the crease between the welt and the upper by a movement transverse of the shoe, and means for actuating the cutter to sever the welt.

9. A welt butting machine, having in combination, a welt butting cutter, a cutting plate arranged to extend into the crease between the welt and the shoe upper, a head on which said parts are sustained, and means for moving said head in a direction to cause said plate to find the welt and to bring said cutter into operating position relatively to the welt.

10. A welt butting machine, having in combination, a welt cutter, and a welt positioning device arranged to engage the shoe in the crease between the welt and the upper and to move vertically to find the level of the crease automatically, said cutter being arranged for movement vertically with said positioning device relatively to the shoe bottom.

11. A welt butting machine, having in combination, a shoe rest for engaging both the back and the bottom of the shoe, a welt support, and provision for varying the initial vertical relation of said shoe rest and welt support.

12. A welt butting machine, having in combination, welt butting means, a shoe rest for engaging the back and seat of the heel, and provision for adjusting said shoe rest both vertically and horizontally relatively to said welt butting means.

13. A welt butting machine, having in combination, a welt cutter, a cutting plate normally below and out of contact with the welt, means to move said cutting plate upwardly into engagement with the underside of the welt and into the crease between the Welt and the upper to position the welt for the action of said cutter, and a presser to act on the upper side of the welt during the action of the cutter.

14. A welt butting machine, having in combination, cutters for simultaneously butting the free ends of the welt, devices arranged at the opposite sides of the shoe for entering the crease between the welt and the upper, provision for actuating said devices both upwardly and inwardly to stretch the upper and position the welt ends for the action of said cutters, and means to engage and bear upon the upper sides of the welt ends during the act-ion of the cutters.

Copies of this patent may be obtained for 15. A welt butting machine, having, in combination, welt butting devices, devices for tightening the upper over the last adjacent the ends of the welt adapted to engage the counter below the welt and move upward over the upper, and automatic means for operating said devices.

16. A welt butting machine,.having, in combination, a welt butting cutter and cutting plate normally withdrawn from operative position to permit the positioning of the shoe, and provision for moving the cutter and cutting plate inward to butting position, said cutting plate being moved in a path to cause it to find and engage the welt.

17. A welt butting machine, having, in combination, a welt butting cutter, a device cooperating therewith adapted to engage the under side of the welt, and mechanism to cause said device to find ,and enter the welt crease.

18. A welt butting machine, having, in combination, welt butt-ing means comprising a cutting plate and a cutter, mechanism for inserting the cutting plate in the crease between the welt and the upper by an up-.

ward and inward movement and concurrently placing the cutter in operative position, and means for thereafter actuating the cutter to sever the welt,

19. A welt butting machine, having, in combination, welt butting means comprising a cutting plate and a cutter arranged one above the other, mechanism for inserting the cutting plate in the crease between the welt and the upper by an upward and inward movement and concurrently placing the cutter above the welt, and means for actuating the cutter lengthwise of the shoe to sever the welt.

20. A machine of the class described, having in combination a welt butting knife, a guard arranged to extend between the welt and the shoe upper, and connected mechanism for actuating the guard and the knife.

21. A machine of the class described, having in combination a welt butting knife, a guard arranged to extend between the welt and the shoe upper, and connected mechanism for positioning the guard and then actuating the knife.

22. A machine of the class described, having in combination a positioning device arranged to engage a welted shoe in the welt crease and to yield vertically to find the level of the crease automatically, means for actuating the positioning device transversely of the shoe, a knife for removing surplus stock from the bottom of the shoe, said knife be- 24. A machine of the class described, having in combination a welt butting knife, a positioning device for the shoe to be operated upon, means for positioning the knife relatively topthe welt of the shoe on said shoe positioning device, and power-driven means for actuating the knife to cut the welt.

25. A machine of the class described, having in combination a guard adapted to en ter the inseam, said guard being movably mounted to permit it to adapt its position automatically to that of the shoe, and a knife arranged to take its position from that of the guard and movable to sever surplus stock from the shoe bottom.

In testimony whereof I aflix my signature, I

in presence of two witnesses.

ERASTUS E. WINKLEY. Witnesses:

Gnonen T. HART, Jr.', WARREN Gr. OGDEN.

five cents each, by addressing the Commissioner of Patents, Washington, D. G.

It is hereby certified that in Letters Patent No. 1,018,859, granted February 27, 1912, upon the application of Erastus E. \vinkley, of Lynn, Massachusetts, for

an improvement in Welt-Butting Machines, an error appears in the printed specification requiring correction as follows: Page 5, line 31, for the word center read cutter; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oifice. I

Signed and sealed this 26th day of March, A. D., 1912.

[SEAL.] C. C. BILLINGS,

Acting Commissioner of Patents.

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