US2007070A - Assembling machine for pail ears - Google Patents

Description

July 2, 1935. L, BURCKLE AssEMBLING MACHINE FOR.y FAIL Ems Filed sept. 2, 1955 7 sheets-sheet 1 HTTURNYS July 2, 1935. BURCKLE 2,007,070

SSEMBLING MACHINE FOR FAIL BARS Filed sept. 2, 1953 7 Sheets-sheet 2 HUDRNEYS July 2, 1935. y L. BURCKLE 2,007,070

ASSEMBLING MACHINE FOR PAIL EARS` Filed sept. 2, 193@ 7 sh'eetsheet 3 i HH INVENTDR BY mhmw HTTnnNEYs July 2, 1935. l.. BURCKLE 2,007,070

ASSEMBLING MACHINE FOR PAIL EARS Filed Sept. 2, 1933 7 Sheets-Sheet 4 Z' l2 I j@ INVENTEIR A F12-Taj@ @f1/AAA HTTQRNEYS Juy 2, 1935. L. BURCKLE ASSEMBLING MACHINE FOR PAIL. EARS 7 Sheets-Sheet 5 Filed Sept. 2, 1935 INVENTnrmy M HTTDRNEYS July 2, 1935 l.. BURCKLE 2,007,070

ASSEMBLING MACHINE FOR PAEL EARS Filed Sept. 2, 1935 '7 Sheets-Sheet 6 HTTDRNEYS July 2, 1935. L. BURCKLE 2,007,070

. ASSEMBLING MACHINE FOR PAIL EARS Filed sept. 2, 1933 7 sheets-sheet '7 NNW U mil# Q. wk

Patented July 2, 1935 UNITED STATES Y ASSEMBLING MACHINE FOR PAIL EARS Louis Burckle, Kansas City, Kans., assignor to Continental Can Company, Ine., New York,` N. Y., a corporation of New York Application September 2, 1933, Serial No. 688,049

il) Claims.

It has been a common expedient to provide an ear for a pail to which a bail is to be attached, which ear consists of two members, one of which serves as a supportingmeans for the bail and the other as a backing for the ear serving as a closing means therefor. The parts of the ear are connected together and are attached to the container body by forming an opening in the wall of the container body'and'interfolding the edge portion at the opening in the wall with the parts of the ear. The present invention has to do with a machine for assembling the parts of the ear.

An object of the invention is to provide a machine whereby the ear backs and the ear fronts may be rapidly assembled and, connected so that the assembled parts may be handled as a unit. A further object of the invention is to provide a machine of the above type with means for applying a sealing material to the ear parts, which sealing material is so placed that it will aid in the forming of a tight joint between the ear and the wall of the pail when the ear is attached thereto.

In the drawings which show by way of illustration one embodiment of the invention- Figure l is a view in section showing the two parts of an ear which have been assembled preparatory to the attaching of the same together;

Fig. 2 is a view similar to Fig. l, and showing a coating applied to the ear parts, which is to serve later as a sealing means for the joint attaching the ear to the wall of the container body;

Fig. 3 is a View showing the ear front and ear back as clinched together after the coating has been applied thereto;

Fig. 4 is a view showing the ear placed in the wall of a container preparatory toA the bumping of the parts for joining the ear to the container;

Fig. 5 is a View showing the parts bumped and the ear attached to the wall of the container;

Fig. 6 is a plan view showing more or less diagrammatically the machine for assembling the ear parts, the applying of the coating thereto, and the clinching of the parts together;

Fig. 7 is a vertical sectional view through the machine on the line 'l-'l of Fig. 6 and showing the feeding means for controlling the feed ofthe ear backs to the turret which presents said ear backs to the different stations for operation thereon, said view showing the means for stopping themachine in case of a jam;

Fig. 8 is a vertical sectional View through the machine on the line 3 8 of. Fig. 6 and showing the operating means for the feed for the car backs, and also showing the feeding means'for the ear -fronts and the control whereby no ear front is fed unless there is an ear back to receive' the same;

Fig. 9 is a view in vertical section on the line 8-9 of Fig. 6, and showing the means for rotating the ear parts, the means for applying the coating, and also the means for controlling the feed of the coating through the applying nozzle;

Fig. 10 is a detail showing the cam for operating the lever controlling the valve of the coating device;

Fig. il is a view in vertical section on the line ii-ii of Fig. 6 and showing one of the devices for clinching the ear parts together after the coating has been applied thereto;

Fig. 12 is a vertical sectional View on the line 2-l2 of Fig. 6 and showing the means for removing the connected ear parts from the turret;

Fig.V 13 is a view partly in plan and partly in horizontal section showing the operating means for the feeding devices, thefcontrol of the valve for the coating device, and the clinching means;

Fig. 14 is a view partly in section'and showing more or less diagrammatically the control of the valve for the coating machine, and the means for automatically closing the valve when the machine is stopped, and also the hand means for closing the valve while the machine continues to operate. I

The invention has to do with a machine for assembling the parts of an ear and the clinching of the same together so that they may be handled as a unit. The ear backs and the ear fronts are placed inhoppers and are fed from the hoppers through delivery chutes to a receiving turret which conveys the ear parts to the different stations where they are operated upon. The turret is provided with a series of pockets toreceive theear parts. First, an ear back is placed in the turret and then an ear front is fed on to the ear back, and properly nested therein preparatory to the clinching of the` parts together. The turret then presents the assembled ear parts to a coating machine'where a coating Vof sealing material is flowed on to the ear back around the peripheral edge thereof and within the flange of the ear back. The turret then presents the assembled ear backs with the coating applied thereto to a clinching device which bends the upwardly'projecting flange of the ear back vover the flared flange of the ear front so as to clinch the parts together and` holdY the same in assembled position, fully covering and protecting the coating that has been applied thereto. The turret next presents the assembled ear parts with the coating thereon and clinched together to the discharge station, where they are positively removed from the turret and delivered on t a conveyor so that the assembled units with the sealing material thereon may be passed through an oven or other suitable means for setting or drying the coating.

Before proceeding with the description of the machine, the construction of the ear which is being formed will be briefly described. In Fig. 1 there is shown in cross section the ear front and ear back nested together preparatory to the coating of the same. The ear front I has an opening E therethrough for receiving the bail. The depending skirt of the ear front is provided with an outwardly aring ange 3. The ear back 4 is free from openings and serves as a closing means for the opening 2. Said ear back has a channel formed near the peripheral edge thereof, and an upstanding flange 5. Fig. 2 shows the parts with the coating flowed on to the ear back and indicated at 6. Fig. 3 shows the parts after having been subjected to the clinching means which turns the flange inwardly and over the flared ange 3 so as to unite the parts loosely, but suiiiciently to hold them together as a unit. After the parts have been assembled and clinched together in the manner just described, then they are passed through an oven and the coating dried or set. This completes the assembled ear construction and it is ready for attachment to the pail. The wall of the pail indicated at 'I is provided with an opening receive an ear inserted from the inside outwardly through the opening. Said peripheral edge portion around the opening is bent so as to provide an inwardly inclining flange 6. This flange is hooked into the flange on the ear back and forms therewith and with the flared flange on the ear front, a joint which is completely sealed by the sealing material placed on the ear parts. This operation is accomplished by a bumping of the ear parts after they are placed as shown in Fig. 4. In Fig. 5, a completed joint is shown, and it will be noted from this figure that the ear is attached to the container body through a joint which is hermetically tight and free from leakage of any character. This enables ears to be attached to pails which may be hermetically sealed, if desired.

The machine embodying the invention, as illustrated in the drawings, consists of a supporting base S which may be of any desired construction. Mounted on this supporting base is an upper frame structure lli. The upper frame structure IG is provided with a supporting sleeve II in which is mounted a supporting column or standard I2. Mounted for rotation on the column I2 is a sleeve I3. Said sleeve is provided with a shoulder i4 and resting on said shoulder is a hub I5 carrying the Yturret 5. The turret I6 as shown in Fig. 6, is provided with a series of pockets Il equally spaced from each other. Directly beneath the turret IG is a supporting annular table or plate I8. The turret moves very close to the annular plate and will slide the assembled parts of the ear while retained in the pocket along the supporting plate from one operating station t0 another. Mounted on the supporting plate is an annular guide rail E9 which retains the assembled parts in the pockets in the turret.

Mounted in suitable bearings in the upper frame II of the machine is a vertical shaft 2S. The vertical shaft 20 is in alinement with a driing shaft 2l and is connected thereto by a clutch 22 which may be of any desired construction. The shaft section 2i] telescopes within the shaft section 2i and when the clutch 22 is in the posi.- tion shown in Fig. 7, the two sections of the shaft are connected for rotation. When this clutch 22 is raised, then the two shaft sections are disconnected. The driving shaft 2! carries a bevel gear 23 meshing with a bevel gear on the main ctuating shaft of the machine. This shaft 2i) carries a crank arm 25 provided with a roller 25 (see broken lines, Fig. 6). The roller 25 forms a part of a Geneva stop motion through which the turret is intermittently rotated step by step and brought to a stationary position where it is locked for an interval of time against movenient. rlhis is the usual construction and it will not be necessary to describe the o e-ration in any great detail. The roller operates in radial slots 2? in the actuated member 28 of the Geneva stop moti The segmental disk E carrying the arm nieves into locking engagement with the turret between. the radial slots, in the usual vfay. The actuated member 28 is pinned to the sleeve i3 and causes the sleeve i3 to turn therewith. Mounted on the sieeve 53 and keyed thereto is a collar 3i?. This collar turns with the sleeve but can move endwise of the sleeve. Springs 3l normally press the collar in an upward direction as shown in Fig. ll., and this collar carries one or more projections 32 which are adapted to seat in recesses 53 in the hub i5 for driving the turret. The projection 32 has the faces thereof inclined, and there occurs a jam in the parts being handled by the turret, the turret will stop and the collar 39 will be given an endwise movement through the inclined faces of the projections acting on the inclined faces of the recesses in which they seat.

Bearing on the under face of the projecting ledge 352 of the collar 35j is a roller 34 carried by a lever 35 which is pivoted at 33. When the collar is pressed downward through a stopping of the movement of he turret, it will press downon the roller and lift the right-hand end of the lever 35. Attached to the free end of the lever -35 is a lug 3? which is adapted to Contact with a lug iid on an arm 39 attached to a shaft Yne shaft lid carries an arm li! provided with a forked end carrying rollers '52 running in an annular groove -13 Li the clutch member A spring is attached at l5 to the arm fsi and is attached at its upper end to a lug '15 carried by the upper frame. This spring normally tends to move the clutch so as to dir fengage the same from the driving shaft stop the machine. When the clutch is thrown into engagement with the cooperating parts for driving the inachine, the lever 29 is moved to the position shown in Fig. so that the lug will be engaged by the lug 3? and this will hold the clutch in engagement. The adjacent faces of the lugs and 38 inclined for the purpose of automatically permitting engage. of this control lever 35 with the lever when the clutch is closed. Av

ent

attached to the control mally urges the same downwardly at the free end, and causes said holding lugs to become en- It will be seen that when a jam stops the turret and forces the colar 3S downwardly, it will swing the control lever 35 so as to release the lever 39, and the spring L35 will shift the clutch so as to stop the machine.

As shown in the drawings, the feeding-in devices and also the operating devices are shown in duplicate;v that is to say, there are two feed chutes for simultaneously delivering ear backs to pockets in the turret. There are also two feed chutes for simultaneously placing ear fronts on the ear backs, and then two separate coating devices and two separate clinching-devices. The turret is moved by themeans described above so as to place two adjacent pockets opposite the two feed chutes for feeding the ear backs thereto, and then the turret is turned so as to place the two pockets containing the ear backs in proper register with the chutes for feeding the ear fronts into the pockets, and likewise, the turret is then turned for presenting the assembled ear parts lto the respective coating devices and the respective clinching devices. The ear backs are controlled by feeding devices which are similar in construction in connecnection with each'feedfchute. One of the feed chutes is indicated at i8 and the other at 45. These feed devices being similar, will be described as one and like reference numerals applied to the other.

1 The ear backs are fed into the chutes from hoppers which may be of any desired construction. The ear backs slide by gravity down the chutes in a continuous row, contacting with each other. There is a feed dog 55 carried by a lever 5| pivoted at 52 which is urged by a spring 53 so that it contacts with the earback and retards its movement in the chute. As shown in Fig. '7, this feed dog 5i? is moved so as to engage the ear back 4 for preventing movement thereof in the chute. The ear back 4" has been released and has moved forward into the pocket I'l of the turret 6. The lever I is provided with a depending lug 53a which contacts with the table or plater l5 and positions the dog 55 so that it will engage the flange of the ear'baok for holding the same from movement. The dog 5B is secured to the lever v5! by a clamping sleeve and bolt 54 which permito the dog to be shifted toward and from the turret and also vertically for properly setting the same.

There is a feed dog 55 spaced nearer the turret than the feed dog 55. This feed dog 55 is carried by an arm 56 which-has a slot in its outer end and the feed dog 55 is connected thereto through a bolt and sleeve connection 51 which permits the same to be shifted toward and from the turret or raised and lowered. Mounted on the arm 55 is a bolt 58. This arm 56 is carried by a bracket 59 which has an up and down movement. When the bracket moves downward, the bolt 58 will contact with the right-hand end of the lever 5I and lift the feed dog 50. This same downward movement of the bracket will bring the dog 55 into position where it will stop the forward movement of the ear back 4. The dog 50 is now over the next following ear back, and when the bracket is raised, the ear back 4" will be released by the upward movement of the dog 55, and the next ear back will be stopped in its movement by the dog 5D. It is understood that this bracket is of sufficient extent so that the feeding devices for the two chutes'are simultaneously operated thereby, and this means that there will be an ear back released and fed forward by gravity into the pocket associatedr with each chute, and this occurs simultaneously.

The bracket member 59 is attached to a head member 55 carried by a column'BI mounted for vertical movement in a standard 62 carried by the upper frame. The head member is provided with an arm 63 carrying a pin 64 sliding in a sleeve carried by the arm 65 in the standard 62, and this will prevent the column from angular movement as it moves up and down. A lever 55 having'a forked end carrying rollers 61 engaging an annular groove 68 in a collar attached to the column serves as a means for raising and lowering the column. This lever 66 is pivotally supported on a shaft 59, and carries at its inner end'a roller I0 running in a cam groove in a disk 1l. is fixed to the cross shaft VT2 which carries a worm gear "I3 meshing with a worm gear 'I4 on the shaft 25.

In4 Fig. 8 of the drawings, there is shown a feeding mechanism for controlling the Year fronts. There are two chutes l5 and l5 as shown in Fig. l

The disk 'H f for the ear fronts, which chutes are supplied with ear fronts from hoppers in any suitable way. Mounted beneath each chute is a control feed for the ear fronts. Thesefeeds are similar in construction and only one will be described, although the numerals will be applied to each. There is a feed dog 'if mounted beneath the chute and moving upward through a slot in the chute into the path of travel of the ear backs i ,The ear back i is shown as retained by the dog 'Il and the ear back l`is bearing against the same. The dog 'il is pivoted at 'i8 to an adjustable supporting member 'I9 which is attached' to the table or plate i8 by a bolt 85 passing through a slot ill in the table. This permits the feed dog to be moved toward or from the turret for properly positioning the same. A feed dog 52 is located directly above the feed dog 'il and is pivoted at 83 to the supporting member 79. A spring 85 bearing on the feed dog 82 moves the same to a position beneath the floor of the chute so that the ear fronts will slide along said chute. The feed dog $2 carries a plate orroller 85 which bears on the feed dog Tl to the right of this pivot at 18, so that the spring will raise the feed dog l'i into a position for obstructing the movement of the ear backs.

It is desired that no ear front be fed into the pocket of the turret unless there is an ear back with which it may be assembled. A control means has been provided which renders the feed dogs inoperative if there is no earback in the turret pocket. This control means consists of a pin 86 carried by an arm Sl supported by a sleeve 88 mounted for oscillation on the shaft S9. There is an arm 9@ also attached to this sleeve, and a spring Si bearing on theimder face of the arm Si@ normally swings the bell crank so as tornc-ve the pin 85 into the pocket in the turret, if the pocket is empty. .When however, there is an ear back in the pocket of the turret, the-n, the pin is limited in its movement by contact with the ear back. The means for operating the feed dogs is controlled by the position of this bell crank carrying the pin 85. Mounted on the head member 55 is a sleeve 92 carrying an upstanding arm 55. Said sleeve also carries a horizontal arm Sill which overlies the arm Sii of the bell crank carrying the pin S6. A spring 95 operates to yieldingly force the arm 55 against the arm 9G. A stop screw 355 limits the downward movement of the arm SG and this will position Jthe upstanding arm S3 directly beneath the lever Tl. the column 6i is raised it will cause the arm 93 to engage the lever 'H and oscillate the same so as the chuck will rotate the parts.

ing mechanism has been provided for the ear backs and the ear fronts so that the pockets of the turret are provided with the ear backs, and when the pocket has an ear back therein, an ear front will be fed on to the same. This assembles the parts of the ear ready for the applying of the coating thereto. The turret is then turned to bring the assembled parts of the ear to the coating stations.

One of the coating stations is indicated at C in and the other at C. They are similar construction, and only one will be described in detail. The column I2 extending up through the central part of the machine is stationary and carries the sleeve :il at the upper end thereof. Said sleeve carries a projecting boss Q8 which supports the bracket carrying the coating devices. The bracket is indicated at tf. Said bracket is pivoted to the boss by a pivot pin IQG. The bracket is shown in Fig. 9 in operative position, and it is held in this position by a bolt ISI passing through openings in the bracket arms and through a projecting bracket i' carried by the sleeve. The bracket 99 is in the forni of a cross head H33 carrying two forwardly extending and downwardly inclining arms Ll. Attached to each arm is a coating nozzle IGS. A supply pipe tdt leads from the nozzle to a mounting in the arm |134 and a flexible pipe iGl is attached thereto for supplying coating to the nozzle. is, of course, a supply pipe te? for cach coa `ozzlc, and these supply pipes extend to the sleeve Si at the top of the column and are connected to a feed pipe shown in dotted lines a i which extends downwardly through the column to the base of the machine. The base of the niachine has a suitable supply pump for feeding the coating material to the nozzles. The nozzle 585 is so disposed that it is directly above the pocket in the ttu'ret when the turret comes to rest at the coating station.

The table or plate IB is provided with an opening IGS in which is located a chuck HE). The chuck I I0 has a recess in its upper face adapted to conform to the shaping of the backing, and the turret moves the assembled ear par ts directly over the chuck, so that the ear back will fall into said recess. The chuck is rotating continuously and it is intermittently raised soas to lift the assembled parts of the ear from the pocket into contact with a gravity held centering rod I H. 'This rod engages the ear front at the opening therein and will serve to center the ear front on the ear back and also guide the assembled parts during the rotating of the parts through the rotating of the chuck. In other words, this centering rod is free to rotate and will hold the parts through the weight thereof, in contact with the chuck so that As shown m Fig. 9, the ear parts are raised to the dotted line position and rotated, and in this position the nozzle IE5 is directly above the channel in the ear back, and directly over the outwardly flaring flange of the ear front. The valve of the coating device is opened, and a jet of coating material is forced from the nozzle on to the assembled ear parts. This will form a coating at the peripheral edge portions of the ear parts all the way around the ear.

The chuck is mounted for rotation in the upper frame and carries an elongated pinion I2. This pinion meshes with a pinion H3 on a stub shaft H4, and the pinion H3 in turn meshes with a pinion H5 attached to the sleeve HS which is mounted for free rotation on the colunm 2 (see Fig. l1). The sleeve carries a gear ||`I which meshes withv a pinion HS on the shaft 2D. Thus it is that the chuck is rotated from the shaft 20. The chuck is moved endwise by a lever I I 9 which is pivotally mounted on the bracket I 25. Said lever carries a yoke end |2| provided with rollers engaging an annular groove |22 in a collar |23 carried by a member |24 that can slide vertically. The shaft 25 which carries the chuck H9 bears on the collar |23 so that when the collar is raised, the chuck is raised, and when the collar is lowered, the chuck will be lowered. The lever H9 carries a roller |25 running in a groove in a disk Iill fixed to the shaft l2.

The flow of the sealing material through the nozzle |55 is controlled by a needle valve |28. This needle valve is held closed by means of a spring |29 and is opened by a control lever |30. This control lever |39 is pivoted at 3| to the bracket An adjustable stop bolt |32 limits the downward movement of the lever, but is so positioned that the spring will close the valve. The levers IN! controlling the two nozzles are simultaneously operated for opening the valves through the following mechanism. A shaft |33 is mounted in bracket arms i333, 33a carried by the cross head Attached to the shaft is an arm |354 to which a spring |35@- is attached, and this spring normally tends to turn the shaft in a clockwise direction as viewed in Fig. 9. Also attached to the shaft E33 is an arm |35, which carries a rod |35. Said rod is threaded into the arm for adjustment and is held in set positions by a lock nut i3?. when this rod |35 and the arm 35 are'raised then the shaft |33 is turned in a counterclockwise direction as seen in Fig. 10. The rod 35 bears on the upper end of a rod 35 which is raised and lowered by mechanism which will be hereinafter described.

Attached to the shaft |33 is a bracket E38 (see Fig. 9). There is a similar bracket and associated parts for thercontrol lever operating the farther nozzle. As these parts are all similar it will only be necessary to describe in detail those shown in Fig. 9. Said bracket arm |33 is provided with a recess in which is located a control block |39. A spring |39a located between the control block and the bracket arm |38 normally forces the block to the limit of its movement to the right as viewed in Fig. 9. The block |39 rests on the bracket arm. Extending along each side of the control block |39 are bars |40, |40. A pin I 4| is fixed to the control block |39 and extends through slots MIE in the bars I 49, |48. These bars are held mounted to rock in diierent positions and this is the means which limits the movement of the control bar 39 to the right as Viewed in Fig. 9. Pivotally attached to the control lever |3l is an upwardly extending member |42. Said member extends into a recess in the control lever and is carried by a pivot pin |52. Said member is provided with a shiftable plate |43 which is secured to the member |42 by suitable bolts which permit said plate to move endwise in said member. The bolt H13a is threaded into the plate |43. This bolt extends through a laterally projecting extension of the member ill-2. The bolt is held from endwise movement in said extension by suitable collars and is provided with a slabbed head whereby it may be turned for changing the set position of the plate |43. A spring It carried by the control lever |38 abuts against the member |42 or turns the same in a clockwise direction against a stop M5,

The rod HI is provided with collars E l l, The

member |42 is providedwith a cam face |421. When the rod I|| Ais raised the collar engages this cam face and will shift this upright |42 so as to place the plate |43 over the control block |39. Normally this plate |43 is so positioned that the control block |39 if raised will not engagethe plate. When the ear partsvare in position for being coated the chuck lifting the ear parts lifts the rod l i l and this will throw the plate |43 into range of movement of the control block |39 and the control block |35 will lift through this member |42 the control lever |30 and open the valve. Thus it is that the valves are opened intermittently through the raising and lowering of the control block |39, but unless these are ear parts to be coated the valves will not be opened.

The control block |39 is raised and lowered through the oscillations of the shaft .The rod |35a rests on a lever |62 which is pivotedto the frame, The lever carries a roller |53 which cooperates with a cam |64 on the shaft '|2. As the shaft rotates the lever will bel raised and lowered and this will oscillate the shaft |33 lift.- ing and lowering the control block |39, thusraising and lowering lthe control lever |30 which in turn will raise the needle valve allowing the coating material to be discharged on the rotated ear parts and after sufficient coating material has been applied to the ear parts then the vcam |54 will permit theY block to be lowered andthe valve to close.

control lever opens the valve.,y Y i v There are times when it is desirable to stop the flow of the coating material.r The bars |49 are connected to a block |46a. The bars are guided in their back and forth movement by ja'suitable guide bracketlllia There is a rod |46 con-` nected to each'blockv and these rods are in turn connected to a crossy bar |41 which is pivoted at one-end of a rock lever |48. The rock lever is pivotally mounted on the sleeve 91. A rod |49V connects this rock lever |48 to a second Yrock lever |50 pivcted at |5| YYto a bracket |52 carried by theframeisee Fig. 14) A spring |53 attached to the rock lever |50 and to the frame normally turns said rock lever |50 in a clockwise direction which will push on the rod |49 and turn the rock lever |43 so as to pull on the rods |46. This permits to be moved the pin |4| to the limit of its extent of movement tothe right as viewed in` Fig. 9. In this position the control block |39 is moved so that it will be engaged by the plate |43 provided there are ear parts to be coated.

In case of a jam the latch lever 35 is moved so as to release the lever arm 39 and the'spring 44 Will then separate the clutch members 22 and stop the machine. The arm 39 moves in a clockwise direction when this occurs. Carried by the arm 39is a plate |55 which bears on a block |56 attached to a rod |54 which in turn is attached to the rock lever |50. When this arm 39 is moved inv a clockwise direction for releasing the clutch it will pull down on the rod |54 which will oscillatethe rock lever |50 in a counterclockwise direction. This movement of the rocky lever |43 pushes on the rods |46 and through the pin |4| will shift the control block |39 to the left as viewed in Fig. 9. rThe spring |39a yields'to permit this shifting of the control block |39. The control block |39 is now positioned so that even if there are ear partsto be coated and the upright |42 shifted to the left as viewed in this figure, still it will not be in range of the control block |39 and therefore the lever |30 will not be lifted and the valve will not be opened.

The springcloses the valveand the Whilethe clutch 22 when separated will stop the operation of the machine, this is not themain clutch for the actuation of the machine. There is a main clutch Vcontrolled by the shaft |58 and the hand lever |51. The operator on shifting this hand lever can stop the machine at will. Attached to and moving with the'hand lever |51 is an arm |59 which overlies a block |6| attached to the rod |50. This rod is attached at its upper end to the rock lever |50. The hand lever |51 is moved in a counterclockwise direction in order to open the main clutch and this will turn the rock lever |50 in a counterclockwise direction and pull on the rod |49 and through the parts connected 'thereto will shift the control bar in the manner above described so as to cut off the operation of the valve releasing mechanism. When the machine is stopped at the Will of the operator or in case of a jam, the control lever is at once released and the valves will close. Thisv avoids stopping the machine with the control |84 positioned so as to leave the valves open.

Whenever it is desired to obtain access to the assembled ear parts at the coating stations, the bracket 99 may be released by withdrawing the bolt mi and this will release the bracket so that. it, with all the parts supported thereby, may beV raised. The flexible` tubes supplying the coating material to the nozzles permits this lifting of the bracket. f y

After the assembled ear parts have been sup-Y plied with the lcoating material, the chuck is lowered so as to again place the ear parts in the pockets of the turret andthe turret is turned through another step movement so as to bring the ears to the bumping stations Where the flange of the ear back is bent so as to looselyclinch the parts together. The bumping stations are indicated at B and B. struction. Mounted on the upper frame I0 is a They` are similar in con-v bracket |51 carrying at its outer end a sleeve |68 y tapered clinching wall |14. Located centrally of the stem of the die and projecting into the recess is a stripper rod |15. A spring |16jyieldingly presses this rod downward. Beneath the table or plate |8 is aplunger |11 which is normally substantially flush with the upper face of the table, and when Vthe turret moves thev ear parts over this plunger, theear back will be seated in a recess in the plunger. VThetwo plungers of theV adjacent clinching devicesV are carriedby cross head |18 which is mountedvon a supporting'rod |19, andthe rod is raised and lowered by means of a lever |39 which is forked and carries rollers running in an annular groove` formedin a collar Isl attached tothe rod ne. when the-lever lanci is raised at its free end, the plunger |11 rwill lift the assembled parts of the ear, bringing the same intocontact with the stripper rod |15, lifting said rod, and carrying the ear front up into Ythe recess |13. The inclined face of the die clinching member will contact with the flange of the ear back and turn the same over the flared ange of the ear front, Vthus clinching the `two parts loosely together, so that they may be handled as a unit.: The plungers |11 then drop, placing the ear units in the pockets of the turret so that they may be conveyed to the discharge station. The lever is mounted on a stub shaft |782 carried by a bracket |83 on the base of the machine (see Fig. 13). rlhe lever carries a roller |84l running in a cam groove in a disk on the shaft 12.

The turret is then moved through another step movement and brings the ear parts to the discharge station. The cross head |18 beneath the clinching station extends around underneath the discharge station. Mounted on the cross head at the discharge station is a lifting plunger |85. There are" two of these plungers which move up into the pockets of the turret and raise the clinched together ear parts preparatory' to the discharging of the saine from the machine. Traveling alongside of the path of movement of the turret is a conveyor' belt |85. Said conveyor belt moves along a support |81 having an upstnding flange |88. This support is carried by a bracket |89. Mounted on the upper` frame is a liaraclretl ISG which extends above the turret and carries an overhanging arm ISI'. In the arm I9! is mounted a Shaft |92 carrying a gear wheel L9@ meshing with a gear wheel |94 carried by a y cross Shaft mounted'in the bracketl ISBD. This cross shaft is driven by a sprocket chain |95. Mounted 'on the shaft |92V is a head |95 which rotates with'the shaft. Said head is provided with radially ei'tending recesses in each of which is mounted a radially moving blade holder |37. The blade holder. is spring pressed outwardly away from the shaftby springs |38. Each blade holder arries'a flexible wiper |99. Also mounted on the bladel holder'is'a'roller 209. There is a roller at each end of the made holder. Attached to the bracket isV an arm 2|| having a cam-shaped face 202 with whichthe rollers 233 alternately (,lOrltactt. When the shaft |52- is rotated in the direction of the arrow Yin Fig. |2, the wiper will follow the path indicated by the brolen line. Just before they wiper passes over the pocket in the turret, it is moved radially inwardly and thence. outwardly so that the end of the wiper travels in substantially a straight line across the upper face of the turret, and this will sweep the Sfsembled ear parts fromv the plungers |85 on to theconveyor belt |86. ATlfieconveryor belt carries the assembled ends intoan oven or other suitable means Where heat may be. applied to they coating for settingl or drying the same.

It is Ythought that the operation of, the machlnewill be obvious from the detail description given` above. The ear backs and the ear fronts areassembled in the pockets of the turret and are presented first to the coating devices, thence to the clinching devices, and nally to the discharge station where they are removed from the machine." While the machine has been shown as having two feeding-in stations and two operating devices, it will be understood, of course, that the number'. of operating devices may be increased or decreaSffd, as desired.

It is obvious that the machine may be readily adjusted to accommodate different size of ear parts, and that it isY fully automatic andrwill continue to operate unless automatically stopped through a jam of the parts or through theaction of the operator. When the parts are restored to their normal position, the clutch 22 is automatically closed throughthe action of the spring |53: There is, of. course, a main clutch between the main shaft carying the gear 24 and the main driving means for. the machine, which is independently controlled, and through whichthe machine may be manually, stopped orstarted, Whenever desired. It cannot be started, however, when there is a jam in the parts, until the jam has been released and the clutch 22 closed.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is:-

1. An ear assembling machine comprising a conveyor having means for receiving ear parts, means for feeding an ear back into the receiving means, means for feeding an ear front onto said ear back in the receiving means, means for applying a coating to the assembled ear parts in the receiving means, means for clinching said parts together, and means for intermittently moving said conveyor for presenting the receiving means in succession to the ear back feeding means, ear front feeding means, coating means, and clinching means.

2. An ear assembling machine comprising a rotating turrent having pockets for receiving ear parts, means for feeding an ear baci; into a pocket, means for feeding an ear front onto the ear baci; in the pocket, means for coating the assembled ear parts in said pocket, means for clinching said parts together, and means for intermittently rotating said turret for presenting the pocket in succession to the ear back feeding means, the ear front feeding means, the coating means, and clinching means.

3. An ear assembling machine comprising a rotating turret having pockets at the periphery thereof shaped to receive and convey ear parts, means for simultaneously feeding ear backs into two of said pockets, means for feeding simultaneousiy ear fronts onto the ear backs in said respective pockets, two coating devices spaced from each other the distance between two pockets, and means for intermittently rotating said turret through an angular movement twice the extent of the angular distance between two pockets for presenting the pockets to the ear back feeding means, the ear front feeding means, the coating devices and the clinching devices.

4. An ear assembling machine comprising a rotating turret having pockets at the periphery thereof for receiving ear parts, means for feeding an ear back into said pocket, means controlled. by the presence of an ear back in a pocket for feeding an ear front onto the ear back in the pocket, a coating device, a clinching device, and means for intermittently rotating said turret for presenting a pocket in succession to the ear back feeding means, the ear front feeding means, the-.coating means, and the clinching means.

5. An ear assembling machine comprising a rotating turret having a pocket at the periphery thereof for receiving ear parts, means for feeding an ear back intosaid pocket, means for ceding an ear front onto said ear back in said pocket, said last named means including a control finger' adapted to Contact with an ear back in the pocket for rendering the ear front feeding means operative whereby if there is no rear back in the pocket no ear front will be released and fed into the pocket, a clinching device, a coating device for applying, coating to the ear parts, and means for intermittently rotating said turret for presenting the pocket in succession to the ear back feeding means, the ear front feeding means, the coating device, and the clinching device.

6. An ear assembling machine comprising a rotating turret having pockets at the periphery thereof for receiving ear parts, mechanism for placing ear backand ear frontin said pockets assembled forclinching, a coating device, a clinching device, and means for intermittently rotating said turret for presenting the pockets in succession to the ear back and ear front placing mechanism, the coating device, and the clinching device.

7. An ear assembling machine comprising a rotating turret having pockets at the periphery thereof for receiving ear parts, mechanism for placing ear backs and ear fronts in said pockets assembled for clinching, a coating device, a clinching device, a take-away device, and means fo-r intermittently rotating said turret for presenting said pockets in succession to the ear back and ear front placing mechanism, the coating device, the clinching device, and the take-away device.

8. An ear assembling machine comprising a coating means, mechanism for assembling ear backs and ear fronts and presenting the same to the coating means, said coating means including a rotating chuck, a nozzle associated therewith, a valve for controlling the nozzle, a spring for closing the valve, a control lever for opening the valve, means controlled by the presence of ear parts to be coated for actuating said control lever, means for stopping the machine, and means controlled by the stopping means for releasing the valve so as to permit the spring to close the same.

9. An ear assembling machine comprising a rotating turret having pockets at the periphery thereof for receiving ear backs and ear fronts in assembled relation, a clinching device for clinching the parts together, a take-away device including a rotating member above the turret, radial arms carried by said rotating member, yielding means for forcing said arms outwardly,

and a stationary cam operating on said arms and shaped so as to cause the arm to move in substantially a straight path across the upper face of the turret while ejecting the ear parts from the turret.

l0. An ear assembling machine comprising a rotating turret having pockets adapted to receive ear parts in assembled relation, a coating device associated with the valve for coating said ear parts, a clinching device associated with said turret for clinching the ear parts together, a takeaway device including a rotating member having a radial arm, means for yieldingly moving the arm outwardly, a stationary cam contacting with the arm causing the lower end thereof to move in substantially a straight path vat a uniform distance above the turret for ejecting the ear parts therefrom.

LOUIS BURCKLE.

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