US1195134A

US1195134A - gouldbourn

Info

Publication number: US1195134A
Authority: US
Publication date: 1916-08-15
Anticipated expiration: 1933-08-15

Description

J. GOULDBOURN.

MACHINE FOR OPERATING 0N HEELS.

APPLICATION FILED SEPT. 25, 1912.

Patented Aug. 15, 1916.

6 SHEETS-SHEET l- WEE //v VE/V 7157/1 J. GOULDBOURN.

MACHINE FOR OPERATING 0N HEELS.

APPLICATION FILED SEPT. 25. I912.

Patented Aug. 15, 1916.

6 SHEETS-SHEET 2- c, w dv J. GOULDBOURN.

MACHINE FOR OPERATING 0N HEELS.

APPLICATION FILED SEPT.25, 1912.

6 SHEETS-SHEET 3.

Wvfwma Patented Aug. 15, 1916.

APPLICATION FILED SEPT. 25 1912.

Patented Aug. 15, 1916.

7 H? a g w m fi WW 5m AW W 1 N.

W/T/VES'SE J. GOULDBOURN.

MACHINE FOR OPERATING 0N HEEL S.

APPLICATION FILED SEPT. 25. I912.

Patented Aug. '15, 1916.

6 SHEETS-SHEET 5- W/T/VESSES.

J. GOULDBOURN.

MACHINE FOR OPERATING 0N HEELS.

APPLICATION FILED SEPT. 25, 1912.

1,195,184, Patented Aug". 15, 1916.

6 SHEETS-SHEET 6.

W/T/VESSES'.

' members are locked and the nails or awls J OSEPI-I GOULDBOURN, OF LEICESTER, ENGLAND, ASSIGNOR TO UNITED SHOE MACHINERYYCOMPANY, OE PATERSON,; NEW JERSEY, A CORPORATION OF NEW J ERSEY.,

MACHINE FOR OPERATING ON HEELS.

Specification of Letters Patent. I Patented Aug, 15, 1916.

Application filed September 25, 1912. Serial No. 722,270.

at Leicester, Leicestershire, England, have invented certain Improvements in Machines for Operating on Heels, of which the following description, in.- connection with the accompanying drawings, isa specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines for operating upon heels, such as heel or toplift attaching, heel loading or heel pricking machines, and is herein shown as embodied in a machine for attaching heels to shoes by nails driven through the heel from the outside.

In machines of the general type to which the invention particularly applies there are two work-engaging or pressing members which exert pressure upon the assembled lifts of the heel or upon the heel and the sole and maintain such pressure while the nails or the like are being driven through the stock. Usually these machines have mechanism by which the members are brought preliminarily into contact with the work and are then moved relativelyflto one another to compress it between them. While thus holding the work under pressure the driven into the work.

An important feature of the present invention consists in mechanically operated mechanism formoving one of the presser members toward the other to apply a uniform pressure to the work regardless both of its density and its thickness and separate automatic locking mechanism for locking the presser member so moved, whatever may be its position, and holding it rigidly while tools, such as awls or drivers, operate upon the work. In Patent No. 1,157,689, granted October 26, 1915, on the joint application of Jerram, Bates and myself, there is disclosed a machine in which a similar action of one of the presser members is effected by hydraulic means, as distinguished from the mechanically operated means ofthe present invention, but it is believed that this action of a presser member has not heretofore been secured by mechanical means.

As herein shown one of the presser members is carried by an actuating lever at one point on which power is applied to effect the pressing of the work and at another point on which the locking mechanismopcrates. This arrangement permits the employment'of locking mechanism arranged to operate independently of, or in a separate train from, the actuating mechanism and thus contributes to improve the operation of the machine by rendering it more certain and uniform in its operation. Another important feature of the invention,

therefore, consists broadly in separate actuating and locking mechanism arranged to move one of two pressing members through a variable distance and then to lock said member in that position.

Another feature of the invention relates to the locking mechanism for the movable work pressing member.. As herein shown the locking mechanism comprises two sets of friction plates one of which is secured to a stationary part of the machine while the other is secured to the presser carrying member. The former set of platesare arranged in a spaced relation and the latter plates are arranged to move freely between them duringthe pressure applying operation but are held rigidly against movement after pressure has been applied by having thestationary set of plates forced against them. This form of locking mechanism presents the advantage of a simple construction while at the same time it is certain in operation,

measuring.operationis effected by a manually operated lever which is connected to the presser carrying member and arranged to operate the latter before power is applied to it. Heels operated on by machines of this type vary considerably in height and, in order that the stroke of the manually operated measuring lever, which is here shown as a trcadle lever, may be substantially uniform under all conditions, the present invention contemplates as another feature the provision of an adjustable connection between the measuring trcadle and the presser carrying member. As herein shown this ad.-

justment is provided for by connecting the measuring lever with a two-part operating lever arranged to movevwith the presser member. By adjusting the two parts of the operating lever the. initial position of the presser member may be set preliminarily in accordance with the height of the work in' hand. 7

Another feature of. the invention conslsts in a novel form of power actuatlng' mecha- 'nism for causing themovable presser memher to exert a uniform pr'essureu on the work regardless of its height or density. To this end there is interposed between a power driven actuator and the presser carrying -meniber a long and heavy compresslon spring through which the action of toggle links is transmitted to a pressure lever arranged to 'be clutched automatically to thepresser carrying member after the latter has been moved to effect the measuring operation. The pressure lever and the presser carrying member also constitute a two part lever mechanism which is similar to that above described in connection witlrthe measuring mechanism except that the connection between the parts is automatically instead of manually controlled as in the former case. It is within the scope of the invention to employ any suitable form .of clutching device for automatically connecting the parts of the two-part lever mechanism, but the clutching device herein disclosedis believed,

to be best suited for the purpose and in itself comprises another featureof the in vention. One of the lever parts is rovided with a toothed segment and the ot er with one or more dogs arranged to cooperate with the segment. Tripping means for the dog is carried by a pressure lever, which consti tutes one part of the two part lever mechanism, and is responsive to the movement of the pressure lever, the arrangement being such that the dog is movedout of operative relation'with the toothed segment when the pressure lever is returned to its initial position and is permitted to engage the toothed segment after the pressure lever has been moved for a predetermined distance from initial position in its working stroke.

Still another feature of the invention consists in a single device for controlling the measuring operation and for throwing into action the power mechanism-which effects the application of the mechanical pressure by further moving the pressing member by which the measuring operation has previously'been efl'ected. As herein shown the controlling device comprises a treadle which the operator depresses to move one of the presser members until it is arrested. by engagement with the work. pression of the treadle produces a measuring pressure which gradually increases to a point at which the power mechanism is Continued de thrown into operation. In this connection still another feature of the invention consists in means for regulating the amount of measuring pressure which may be applied to the work before the mechanical pressing is initiated.

'While the general organization and cooperation of the'diflerent mechanisms of the machine constitute important features of the V invention,,it is believed that the specific construction of these mechanisms is alsonovel and their use in other combinations is notoutside the scope of the invention.

These and other features of the invention will be best understood. and appreciated from the following description of a 'preferred embodiment thereof selected for purposes of illustrationand shown in the accompanying drawings in which,

Figure 1 is a view in side elevation of the machine in which the preferred construction of the' invention is embodied; Fig. 2 is a front view of the machine shown in Fig.. 1; Fig. 3' is a view showing in detail a por-' tion of the treadle mechanism; Fig. 4 is a horizontal section at the upper part of the machine drawn to a large scale to illustrate more clearly certain parts -of the pressure applying mechanism; Fig. 5 is a view similar to a portion of Fig. 1 drawn to a larger scale than in that figure; Fig. 6 is a view partlv in section of the upper part'of the machine also on an enlarged scale, and illustrates the locking mechanism; Fig. 7 v is an elevationof a plate forming a part of the mechanism shown in Fig. 6; Fig. 8 is a side view corresponding to a portion of the lower part of Fig. 1 but drawn on an enlarged scale to show the clutch mechanism used in the machine; and Fig. 9 is a view at right angles to Fig; 8 of the same mechanism.

In the machine shown in the drawings there are two relatively

movable engagingmembers

2 and 4 arranged one above the other and adapted to clamp the work between them preliminarily-to the operation of the drivers. The lower member 2 carries a stationary die plate through which the nails are driven into the work by drivers which are operated through mechanism being operated upon by connections with a.

treadle 12 to effect the measuring operation. The treadle lever 12 for a purpose hereinafter made clear, is not fulcrumed on the frame 3 of the machine, but 1s centered at 14 on the end of another lever 16 which may be referred to conveniently as the clutch lever and which is journaled ona stud 18 set in the frame of the machine.

Theconnection between the plunger 8 and the treadle lever comprises a plungersactuating lever 24 fulcrumed on a shaft 26 journaled in hearings in the frame of the machine and having at its "forward end a.

forked projection 28 which engages a recess in the plunger 8.

The leyer 24 (see Fig. 4) is pinned to the end of the loose lever 36. By withdrawing the pin'and turning the arm until the pin engages with another hole in the quadrant plate the angular relationship of the lever 36 with respectto the plunger-actuating lever 24 may be altered and the initial position and consequently the stroke of the clamping member 4 adjusted according to requirement.

The rear end of the lever 36 is coupled by a rod 51 'to the end of an arm 52 secured upon a stud or shaft 50 mounted'in bearings on the frame 3, on which. stud is also fixed another longer arm 53 coupled by a rod 54 with the end of the treadle lever 12. By these connections when the treadle is depressed the rear end of the plunger-carry ing lever 24 will be raised and the forward end of the same depressed thereby moving the work-carrying member 4 downward until the work contacts with the opposed work-engaging member 2 the requisite amount of downward move ent of the member 4 being 4 obtained by the preliminary adjustment of the lever 36 upon the shaft 26. TlllS movement takes place in opposition to the tension of a spring 19 which, when permitted, returns the lever 36 to-its initial position. w

The rear end of the plunger-actuating lever 24 is provided with a ratchet segment 25 adapted to be engaged by two pawls 61 ,and

v 62, see particularly Fig. 5, for a purpose hereinafter made clear, the said pawls bemg carried by another lever 60, hereinafter termed the pressure lever, also journaled loosely upon the shaft 26. The pressure lever 60 carries in bearings at its rear or free end a movable part, for example a bar or slider 63, which has mounted on it tripping devices 64 which act on

thepawls

61 and 62.

to. maintain them out of contact with the ratchet segment 25 when the pressure lever 60 is in its lowermost or initial position. The slider '63 is moved-in its bearings when the pressure lever 60 is lowered by being brought into engagement with an abut ment 5 on the frame of the machine whereby the tripping devices 64 will be brought into contact with'transverse pins 65 on the

pawls

61, 62 and thus raise'them out of contact with the ratchet segment 25. When the pressure lever 60 is raised by means which will hereinafter be described the slider 63 remains in contact with the abutment 5 on the machine frame until it'has moved sufficiently in relation to its bearings to remove the tripping devices 64 from the pins 65 on the pawls 61 and62 and thus permit them to be drawn* into engagement with the ratchetsegment by springs 66 with which each pawl is. provided. The upward movement of the pressure lever 60 is thereafter communicated to the plunger-actuating le- 'ver 24 through the said pawls and segment.

For convenience of construction and to obtain an equal distribution of stresses in the machine the pressure lever is made in two parts, as shown in Fig. 4, secured together by bolts'68.

The tripping devices 64 are adjustably mounted on the slider 63 so that they can be brought into proper relationship to act on their respective pawls and the slider itself, where it engages the abutment, is provided with a screw, as shown at 67, so that it can be adjusted accurately to act on the pawls at the right time. The same result wouldbe attained bymaking the abutment adjustable upon the machine frame. By-the provision of two pawls, such as 61 and 62 which may be of different length or may be differently disposed in relation to the teeth of the ratchet segment 25, the said segment will become engaged-,qulcker andwith less lost motion than might occur if a single pawl were employed.

To operate the pressure lever 60 and throughit the plunger-actuating lever 24 to press the work, the rear end of the lever 60 is connected with the upper end of one of a pair of toggle links 7 O and 71, the lower end of the other of such links being connected with the frame 3 of the machine. \Vhen the toggle is straightened 'the pressure lever 60 will be raised and pressure exerted upon the work. The connection between the toggle links 70, 71 and the lever 60 is telescopic and yielding so that in its upward movement it will move as an entirety to cause one of the

pawls

61 or 62 to engage with the ratchet segment 25 and then during the further upward movement, in which the plungeractaating lever 24 is carried with the pressure lever 60, the parts which comprise the connection will telescope so that pressure will be imparted to the work through the yielding element included in its construction.

The construction of the connection be tween the pressure lever 60 and the toggle as herein shown comprises a rod 72 connected to the toggle, and having at its upper end a cap or'sleeve 73 slidingly mounted thereon, the cap being secured to the rod by a pin-andslot connection. Encircling the rod 72 between a flange 74 on the said cap and an abutment formed by a threaded disk 75 screwed on the lowerend of the rod is a spring-76. Lost motion can occur between the cap and the rod in opposition to the spring and yielding pressure on the Work is thereby'obtained. To vary the amount of such pressure the disk 75 can-be screwed or unscrewed on the rod 72 and a split collar -7 7 clamped upon the rod 72in contact with the, disk 75 may be employed to maintain the sald disk in its adjusted position, The lower end of the yielding connection is constrained to movein approximately a right line by a radius rod 78 connected with a part of the machine frame- I n n The upper link 70 of the toggle is formed as a bell-crank lever, the'free arm 79 of which is connected by a link 81 to one end of a lever 80 fulcrumedfat 85 upon themachine frame. The other endfof the said lever is actuated through a connecting rod 86 which engages a cran c pin 88 on the main shaft 90 of the machine, the main shaft 90 being driven through gearing 92 from the driving shaft 6 which carries a stopping and starting clutch of any usual type ordinarily employed in this class of machine. An example of stopping and starting mechanism particularlyadapted for use in' connection with this machine is hereinafter described, reference being made to Figs. 8 and 9. The'main shaft I 90 also carries another crank pin 93 diametrically disposed with respect to the crank pin 88. The crank pin 93, by alink 94, operates another

toggle comprising links

95, 96, of which link 95 is connected with the machine frame 3 while the link 96 is connected with and actuates a plunger 97 which operates, through a lost motion connection, another plunger 98 in the presser member 2.

' This plunger has a driver blockin which are the die plate.

set the nail drivers constructed like those ordinarily employed in this type of machine and arranged to reciprocate in passages in The lever 80 is provided with another or auxiliary arm 82 having formed in it a cam slot 83 .which engages a roller 47 upon a lever 46, which lever is centered on the ma-' chine frame 3 and the use of which will be explained later on in this description.

Means are provided for locking and so preventin displacement of the plungeractuatingdever 24 from its position of pressure during the nail-driving operation. As herein shown the means for locking the lever 24 comprise a clamp device partly carried by' the said lever and partly secured on themachine frame and means are provided to operate this clamping device to lock the lever 24 in any position to which it may have been moved in applying pressure to thework. The partof the clamping device carried by the lever 24 consists of a number of long friction lates 131, see Figs. 1 and 6,

hung side by si e upon a transverse pin 129 are closed together, by means now to be described, they will grip the plates 131 atand the plunger 8 with which itis'connected in position.

The means for tion plates 131 an 132 together consist of clamping

plates

134 and 135 located one on. each side of the whole series, one of the' said' clamping plates 134 being sustained by an adjusting screw 136 which passes through the spindle aforesaid and is provided exteriorly with aslot 137 by which it can be turned, a jam nut 138 being employed to secure it in position. This arrangementaf fords means whereby the initial pressure on the

friction plates

131 and 132 may be regu-' lated.- 'The other clamping plate 135 is lopressing the offric tached to the lever 24, and so lock the lever cated on the side of the series opposite to the adjustable clamping plate 134 and is attached toaplunger 139 which is located Within the spindle 130. This plunger is operated by an inverted toggle, that is to say,

' a toggle formed by a lever 140 centered at 143 on the frame of the machine, and having between its ends a bearing 141 for a strut 142, the other end of which bears against the end of the plunger 139. The lever 140 to' which the strut 142 is connected is normally -maintained in such a position that the said strut. extends at an angle to the plunger 139 within the spindle 130'and is straightened to force theplungefl toward the friction plates131 and 132-when the lever 140 is drawn downward. This drawing down of the lever 140 and the c'onse quent operation of the plunger 139 is efi'ected by a rod 48 which joins the end of the lever 140 with the cam-operated lever 46 hereinbefore referred to.

It will be understood from the foregoing that when the auxiliary arm 82 of the

togthe connections

54, 53, 52, 50, 51mm thegle-operating lever 80 is moved the slot therein will pull down the cam-operated lever 46 and thus cause the

friction plates

131, 132 to be clamped together and thereby lock the plunger-actuating lev'er.2 4 in the position to which it has been moved in applying the final pressure to the work. The slot 83 in the auxiliary arm 82 of the toggleoperating lever 80 is of such form that there will be suflicient lost motion to permit of the" toggle which operates the plungeractuating lever 24 to be straightened before the locking device is operated and then maintain the :clamping device locked while the nails are driven into the work.

The treadle lever 12, as before mentioned, is centered at 14 upon the lever .16, which has been referred to as" the clutch lever. The treadle is normally maintained in a raised position by a spring 19 which connects the lever 36 with the frame 3, while another spring 20 connecting the end of the clutch lever 16 with the frame, tends to maintain the center 18 of the treadle lever also raised. The

springs

19 and 20 instead of being connected directly to the frame are, as shown in Fig. 1, attached to arms 21 pivoted to the frame and provided with a' handle 22 by turning which the tension of the springs can be adjusted. By mounting the treadle lever upon the clutch lever as above described the treadle when depressed will turn upon its center 18 and through lever 36 and through its connection with the plunger-actuating lever 24, cause the latter to move the work-engaging member 4 downward [until the work is pressed between it and the opposed member- 2. When further movement of the lever 24 is temporarily arrested the treadle lever 12 and the clutch member 16 will move together about the center 18 to operate, by means now to be described, the clutch and start the machine. To offer sufficient resistance to the clutch lever 16 to prevent it from moving'during the preliminary movement of the treadle a spring pressed strut 23"is pivoted on the frameof the machine and connected with the end of the clutch lever 16, as clearly shown in Fig. 3.

The machine is started and stopped by a one revolution clutch on the main shaft 6 of the'machine, the said' clutch connecting finger 103 is mounted on the rear end of the treadle lever 16, the said finger acting on a trip plate .104 on an arm '105 mounted loosely on a stud 106. The end of the arm 105 bears against an abutment screw 107 on the toggle link 101 and thereby in the upward movement of the' end of the treadle'lever 16 breaks the toggle through the action of the thrust finger 103,"

raised position and the toggle maintained broken while the machine performs a complete cycle. At the completion of the cycle of the machine the cam groove 121 is so shaped as to turn the lever 108 on the stud 106 and remove the face thereon from engagement with the projection 109 on the arm 105, thereby allowing the latter to fall, the toggle to become straightened and the machine automatically stopped. The lever 108 is also provided with an abutment screw 110 which acts on thethrust finger 103 in opposition to a spring 111 to remove the finger from engagement with the trip plate 104 at the completion of the cycle, whereby the ,machine will be disconnected from thepower, notwithstanding the fact that the thrust finger may be maintained in raised position by the continued depression of the treadle by the operator.

- The general operation of the machine arranged as hereinbefore set forth is as follows :After the shoe has been placed upon the jack, or work-carrying member 2 and the heel to be attached has been placed upon the' sole the operator depresses the treadle 12, with the result that the plungeractuating lever 24 is turned upon its center 26 topress the heel seat of the said shoe into preliminary engagement with the surface of the heel and so measure the work. In this movement the ratchet segment 25 is raised to an amount determined by the thickness of the work between the opposed members. Further-depression of the treadle 12 turns the clutch lever 16 upon its center 18 against the tension of the spring 20 and thereby through the thrust finger 103 operates the starting clutch which through the gearing 92 rotates the driving shaft 90 of the machine. The first effect of this rotation is to cause the

toggle

70, 71 operating the pressure lever 60 to be straightened in which straightening the yielding connecting rod 72 is raised first as a whole to remove the slider 63 from the abutment 5 on the machine frame and then release the

pawls

61 and 62 so that they maybe brought into engagement with the ratchet segment by their springs 66. In the further upward movement ofthe connecting rod yielding pressure will be exerted upon the pressure lever 60 which pressure will be transmitted to the plunger-actuating lever 24 by means of thepawls61 and 62 and ratchet segment 25 so that the work will be compressed between the clamping members. As this final pressure is applied through the medium of the long compression spring 76, which is shortened substantially an equal amount in each cycle, the pressure will be uniform regardless of the density or height of the work. During this operation the roller 47 on the cam-operated lever 46 has been moving in a concentric portion of the cam slot 83 on the auxiliary arm 82 of the toggleoperating lever so that the locking device will not have been operated until the compression of .the work has been effected.

After this has taken place, however, the

cam 83 will cause the cam-operated lever 46 to be lowered and through its connections with the clamping lever 140 actuate the locking device to lock the plunger-actuating lever 24 during the nail-driving operation which now takes lace by the continued rotation of the driving shaft 90 straightening the

toggle

95, 96 associated with the said drivers. Continued rotation of-"the driving shaft 90 then breaks the

toggle

95, 96,

thus lowering the drivers, and swings the .lever 80 in a contra-clockwise direction its initial position while this movement is completed by the spring 19 when the treadle 12 is released by the operator. In the course of the return movement of-the lever 24 the slider 63 encounters the abutment 5 and the

dogs

61 and 62 are rendered inoperative thus disconnecting the lever 241 from the mechanically operated lever 60. The machine is then in readiness to operate upon a new shoe.

The machine is herein shown and described as arranged fordriving attaching nails from the inside of the shoe into the heel, but with suitable modification in the shape of the work engaging members, as for example in the patent above mentioned, the nails may be driven from the outside of the shoe.

Having thus described my invention, What I claim as new and desire to secure by Letters Patent of the United States is:

l. A, machine of the class described having, in combination, reciprocatory tools,

has been applied for maintaining work pressing members for holding the work while being operated upon by the tools, comprising oppositely disposed presser members, means for moving one of said members into preliminary engagement with the work, power operated means for sub sequently moving one of said members in a yielding manner to apply uniform pressure to the work irrespective of its thickness,

.and means for automatically locking the member last moved in position of pressure;

2. A machine of the class described having, in combination, manually operated bers, means for measuring the work between the members, mechanically operated means for moving one of the pressing members independently of the tools after the meas- Y uring operation to apply pressure to the work, andlooking mechanism arranged to be operated by power after the ressure the work under pressure.

4. A machine of the class described having, in combination, a die plate, tools arranged to reciprocate through the die plate, a presser member movable relatively to the die} plate, means for measuring the work between the presser'member and die plate, power operated means for moving the presser member toward the die plate after the measuring operation, and mechanically actuated locking mechanism arranged to lock the presser member in position of pressure. V V

5. A machine of the class described, having, in combination, work pressing members,

a gang of tools associated therewith, lock-' ing mechanism, a power driven actuator,

and a single manually operated device for first moving one of the'pressing members to measure the work and then for rendering the actuator efl'ective to move said pressing member further to apply pressure to the work and also to operate the locking mechanism to hold the pressure so applied.

6. A machine of the class described having, in combination, work pressing members, a gang of tools associated therewith, a power actuator for moving 'one of the pressing "members, and locking mechanism arranged to be operated by theflactuator after it has moved said pressing member to apply pressure to the work, said locking mechanism serving to hold the pressing member in position of pressure.

.mitting free movement of the lever but being constructed and arranged to clamp the lever to the frame after the work has been subjected to pressure.-

'8. -A machine of the class described having, in combination, a frame having a lever pivoted therein, cooperating work pressin members one of which is connected to the lever, friction plates connected tothe lever upon the opposite sides of the fulcrum, intermediate friction plates secured to the frame, and mechanism normally permitting the friction plates to expand and allow movement of the lever, said mechanism being automatically operated to contract the friction plates after the leverhas been moved to subject the work to pressure.

9. A machine of the class described having, in combination, work pressing members, one of which is movable toward the other to engage the work, spaced friction plates connected to the movable memberand arranged for movement in OPPOSllIG' directions to that of said member, intermediate friction plates having a support, means for adjusting the initial pressure of the frictionv plates, and means for forcing the friction plates into locking engagement to hold the pressing member stationary with respect to the support after said member has been moved toward the work.

'10. A machine of the class described having, in combination, work pressing members, one of which is movable toward the other to engage the work, friction plates connected to the movable member and arranged for movement in an opposite direction to that of said member, intermediate friction plates having a support, toggle operated mechanism for forcing the friction plates into locking engagement, and an ac tua-tor for automatically operating said mechanism after the pressing member has.

been moved.

11. A machine of the class described having, in combination, a frame, a normally stationary work pressing member, a vertically movable pressing member, and locking means for the latter member comprising friction plates disposed at one side of the path of said member, cotiperating friction plates carried by the frame and arranged for' relative lateral movement, an operating lever extending substantially horizontally between the friction plates and the presser member and mechanism operating on the plates carried by the frame for forcing them into locking, engagement with the carried by the pressing member.

12. A machine of the class described havplates ing, in combination, a frame, a normally stationary work pressing member,- a lever mounted in the frame and carrying a cooperating work pressing member,.friction plates carried by the lever, cooperating friction plates carried by the. frame, and mechanically operated means for forcing the plates into locking engagement to lock the lever to the machine frame after it has moved its presser member into position of pressure.

13. A machine of the class described having, in combination, a frame, a normally stationary work pressing member, a lever mounted in the frame and carrying a 00- operating work pressing member, spaced friction plates carried by the frame, inter mediate friction plates carried by the lever and movable between those on the frame, and means operative-in all positions of the lever for forcing those on the frame into locking engagement with those 'on the lever. 14. A machine of the class described havin'g, in combination, a frame, a yieldingly movable work pressing member, a toggle for operatingethe pressing member, a spring between the toggle and the pressing member, mechanism for locking the pressing member to the frame, and poweroperated means for first straightening the toggle and then operating the locking mechanism. 15. A machine of the class described having, in, combination, a frame, a lever carrying a pressing member, a toggle arranged to operate the lever, means for preliminari-lv altering the position of the pressing mem er relatively to the toggle, mechanism for locking the pressing member to the frame, and power operated means for first straightening the toggle and then operating the locking mechanism.

16. A machine of the class described having, in combination, a lever carrying a 'p'resser member, a treadle formoving said lever, means for adjusting the initial position of the lever with respect to the treadle without moving the treadle, and power opposition of the actuating lever with respect to the operating leiger 36. I

18. -A machine of the class described having, in combination an actuating lever carhaving, in combination, relatively movable pressing members, power actuating means for one of said members, and a connecting tramof mechanlsm between said actuating means and pressing member including a.

spring held normally under compression and a toggle operating to compress the spring further by a substantially uniform amount in each cycle of themachine.

20. A machine of the class described having, in combination, reciprocatory tools, cooperating work holding members, an actuating lever for moving one of said members toward the other, a second lever journaled to turn about the same axis as the actuating lever and initially disconnected therefrom, power'operated means for yieldingly moving said second lever, and means for automatically clutching together the two levers when the work has been subjected to a predetermined degree of pressure, whereby the actuating lever may be moved in a yielding manner to subject the work to uniform pressure.

21. A machine of the class described having, in combination, reciprocating tools, cooperating work holding members, an actuating lever for moving one of said members toward the other, a second lever adjacent to, and initially disconnected from, the actuating lever, means for preliminarily moving the actuating lever to effect the measuring operation, means for clutching the actuating lever after'it has been so moved to said second lever, power operated means-for moving said second lever in a yielding manner, and a lock arranged to act on the op erating lever.

22. A machine of the class described having, Y in combination, cooperating work pressing members, a power operated lever, an actuating lever interposed between the power operated lever and one of the work pressing members, manually operated means for moving the actuating lever to effect the measuring operation, a clutch for connect ing the actuating lever to the power operated lever, and means for rendering the clutch inoperative when the power operated lever is moved to its initial position and for holding the clutch inoperative while said other to lock said member sition.

23. A machine of the class described having, in combination, cooperating work pressing members, a power operated lever arranged to be connected to one of said members for moving it toward the other member to press the work, clutching means arranged to efiect such connection when the power operated lever is moved to a predetermined point, and a lock for holding the pressing member stationary after it has been moved to position of pressure.

24. A machine for operating on heels, having, in combination, oppositely disposed and relatively movable pressing members, a gang of tools arranged to operate upon work held by said members, and separate power operated actuating and locking mechanisms, one arranged to move one of the pressing members through a variable distance to subject the work to uniform pressure and the stationary in that position."

25.- A machine ofvthe class described hav ing, in combination, reciprocatory tools, work pressing members for holding the work while being operatedupon by the tools, comprising oppositely disposed presser members, means for moving one of said members through a variable distance into preliminary engagement with the work,

power operated means i for subsequently movingsaid member again through a variable distance dependent upon the density of the work to apply pressure to the work, and means for automatically locking the member so moved in position of pressure.

26. A machine of-the class described having, in combination, nail driving. mechanism, a nail block, a pressing member movable relatively thereto, a pressing lever fast to an intermediate shaft and connected at one end to said pressing member, a manually operated lever arranged to act upon said shaft to move the pressing lever so as to bring the pressing member into engage ment with work between it and the nail block, and means for actuating the driving mechanism arranged to be set 'in motion by a further movement of said manually operated lever.

27. A machine of the class described act at another point on the lever for holding the lever in-position of pressure.

28. A, machine of the class described having, in combination, an oscillatory presser carrying member, a presser thereon, a cooperating normally stationary presser, a power driven actuator, and two trains of mechanism between the actuator and carrying member, one for swinging the carrying member through a variable distance and the other for locking the carrying member after it has been. so moved, said locking mechanism acting'at a point more remote from the axis of the carrying member than the presser.

29. A machine of the class described having, in combination, a movable presser member, a cooperating normally stationary press or member, a power actuator, a manually operated actuator, andtwo independent lever mechanisms having relatively adjustable parts, one interposed between the power actuator and the presser member and the other between the manually operated actuator and the presser member.

30. A machine of the class described having, in combination, amovable presser member, independent actuators therefor, a two-part lever mechanism having an automatic clutch between its parts interposed between one actuator and the presser member,

and a two-part lever mechanismohaving a manually operated clu'tch between its parts interposed betweenthe other actuator and the-presser member.

.31. A machine of the class described having, in combination, oppositely disposed presser members, manually operated means I for relatively moving said members to measure the work, power mechanism for rela tively moving the presser members to subject the work to pressure arranged to be set operation when the measuring pressure reaches a predetermined amount, and manually adjustable means constructed and arranged to be set in various. positions for regulating the amount of the measuring pressure. .1

32. A machine of theclass described having, in combination, relatively movable pressing members, manual means for moving one of said members to subject parts of a shoe to a gradually increasing measuring pressure, power operated means for moving said member farther in the same direction to apply mechanical pressure to said parts when the measuring pressure reaches a predetermined amount, and meansfor determining and regulating the point at which the mechanical pressing of the work shall begin. 33. A heel attaching machine having, in

measuring pressure, mechanism for moving.

the same member farther toward the other member to subject the work to an increased pressure, and a single controlling device separately connected withsaid mechanisms and arranged to throw them into operation successively.

' 34. A heel attaching machine having, in combination, a movable presser member, a gang of drivers, a driving shaft having two crank pins, a toggle directly connected to each crank pin, a lost motion connection between one toggle and the drivers, and a yielding connection between the other toggle and the. presser member. I v

35. A machine for operating on heels, having, in combination, relatively movable heel pressing members, means for preliminarily moving one toward the other to measure the work, mechanically actuated means for further moving one toward the other in a yielding manner'to apply a predetermined pressure to the work, means for locking the member so moved rigidly in its 'positionof pressure, and a gang of tools associated with one of the pressing members.

36. A machine for operating on heels, having in combination, 'a die plate, a supporting member movable toward and from the die plate, a treadle, an intermediate rocker arm (52) connected thereto, a spring for moving the rocker arm in opposition to the treadle movement, measuring mechanism including a lever arranged to be connected to the rocker arm and being controlled in its movement by said rocker arm for preliminarily effecting the measuring operation, and power operated nailing mechanism arranged to be set in operation by the final portion of the treadle movement.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

- JOSEPH GOULDBOURN.

Witnesses:

FREDERICK WILLIAM WORTH, RICHARD ERNEST GETLIFFE.

Correction in Letters Patent No. 1,195,134. s

I It is hereby certified that in Letters Patent .No. 1,19 5,134, granted August 15,

1916, upon'the applicatioxi of Joseph Gouldbeurn, of Leicester, England, for an improvement in Machines for Operatiiig on Heels/ an error appears in the printed specification reqliiring correction as follows: Page7, line 18, claim 8, for the words sides f the read side of its; and that thesaidLetters Patent should be read with this 'cerrection therein that the same may cenform to therecord of the case in the Patent Office.

Signeii arid sealed this 31st day of Oetdber, A. D., 1916.

' R. R'WHITEHEAD,

Acting Commissioner of Patents.