US1771708A - Hat-pouncing machine - Google Patents

Description

July 29, 1930. J. F. DORAN 1,

HA-T POUNCING MACHINE Fiied March 25'. 1924 s Sheets-Sheet 1 33 351 332 INVENTOR.

fiww 3 5 m W1 my a A TTORNE Y.

July 29, .1930.

J. F. ,DORAN 1,771,708

HAT POUNCING MACHINE Filed March 25, 1924 6 Sheets-Sheet 2 i H' -i bm-m i,

INVENTOR.

ATTORNEY.

July" 29, 1930; J. F. DORAN I HAT romaine MACHINE Filed March 25, 1924 6' Sheets-Sheet 3 AW r,

11H ml:

Hun,

0 I l I.

- Fifi/d INVENTOR BY f 21m ATTORNEY.

my 29, 1930. J F. DORAN ,7 ,7

HAT POUNC ING MACHINE Filed March 25. 1924 6 Sheets-Sheet 4 I N VEN TOR.

BY 5% M 6m ATTORNEY.

July 29, 1930. J, F, DORAN 1,771,708

HAT POUNCING MACHINE Filed March 25. 1924 6 Sheets-Sheet 6 000000000 OOOOOOOOOO 1 VII/ll AITTORNEY.

, Patented July 29, 1930 JAMES F. 120mm, or DANBURY, CONNECTIGUT HAT-POUNCING MACHINE Application filed. March 25, 1924. Serial No. genes;

This invention relates to the manufacture of hats and more particularly to machines for pouncing or finishing hats.

One of the objects of the invention is to provide a machine'of the above nature which is practical and eificient throughout and capable of meeting the requirements of'practical use in a highly satisfactory manner. Another object is to provide a machine of the 19 above nature capable of turning out a high grade of work in a rapid and thorough man ner. Another object is to provide a machine of the above nature adapted to operateat all times dependablyand' accurately. Other ob- 15 jects are to provide such a machine capable of performing an even and uniform operation upon all portions of the hat surface regardless of the irregularities of such surface, and capable of operating with equally efficient and uniform results upon all sizes and shapes of hats. Another object is to provide a machine of the above nature which is simply operated and wherein the degree of manual attention required during'operation is reduced to a minimum. Another object is to provide such a machine characterized by smoothness of operation and freedom from parts susceptible to wear and deterioration. o Another object is to provide such a machine wherein the various parts are conveniently disposed for ready accessibility. Other objects will be in part obvious or in part point ed out hereinafter.

The invention accordinglyconsistsjin the features of construction, combinations of. ele- 111811118 and'arrangenients of parts as vwill be exemplified in the structure to be hereinafter described and the scope of theapplication of which will be "indicated in the following claims. 7 p

In the accompanying drawingsin which shown one'or more of the various possible embodiments of the several features of this invention, 1

Figure 1 is a top plan View of the machine. Figure 2 is a section takensubstantially along the line 22 of Figure 1 showing in larger detail parts of the tool carrying n 60 mechanism.

Figure 3 is a plan View of the parts shown in Figure 2, partly in section and certain cornfollower shown in Figure 5, together with the cam with which it coacts.

F igurefi is a detailed front elevation of certain parts shown in Figure 4 with coacting parts which are omitted from Fig ure 4.

Figure 7 is a side elevationin enlarged detail viewed from the side of the machine opposite to that from whichthe machine is viewed in Figure 4 showing the main body portion of the machinepartly insection.

Figure 8 is a sectional detail of certain parts shown in Figure 7.

Figure 9 is a section taken substantially along the line 99 of Figure 7. p V

Figure 10 is a transverse sectional detail through certain parts of Figure 9.

Figure 11 is a section taken substantially along the line 11-11 of Figure 7.

Figure 12 is a section taken substantially along the line 12-12 of Figure 7.

Figure 13 is a section taken substantially along thelin'e 13-13 of Figure 7.

Figure 14 is a sectional view of the parts of the machine comprising the upper lefthand portion of Figure 1, showing parts of the tool carrying mechanism and mechanism for actuating and controlling the tool.

Figure 14 is a detailedfside elevationof certain parts shown in Figure 14 r F igure 15 1s a section taken substantially along the line 15- -15 of Figure 14 certain parts notfshown in Figure 14 being added and certain adjustable parts being shown in different relative positions to bring out the construction. V

Figure 16 is a side view of the pouncing tool and associated mechanisms. V

Figure'17 is a section taken substantially along the line 1717 of Figure 16, and

Figure 18 is a section taken substantially along the line 18-18 of Figure 17 with the pose which will be laterpointed out.

parts not shown in upright frame members 22 and 23 extend upwardly from the tableror bed 20 and bee tween the upper portions of these frame members 22 and 23 is a lateral hollow casing 24 provided with an upper stiffening web 25. The machine is driven either by motor or factory drive through a pulley 26 which is fast upon a shaft 27' at the rear of the machine. Upon this shaft 27 is a second pulley 28 from which is driven a pulley 29 through a belt 30. The upper portion of the upright frame member 23 comprises a gear box 31 containing gearing to be later described, through which the pulley 29 drives a shaft 32, shown in Figure 7, extending through the casing 24 to the front of the machine. The upper portion of the upright frame member 22carr1es a casing 33 wherem the forward end of the shaft 32 is connected to drive certain mechanism, to be later de-. scribed. The hat to be operated upon is sup ported upon a block 34, shown in Figure 1,

which is supported by mounting means projecting from the front of the casing 33 and drlven from the mechanism contained there- 35 in, as will all be more fully described hereinafter.

As shown in Figure 4, the shaft 32 adjacent its central portion carries a worm 35 which projects through the bottom of thehollow frame member 24. Adapted to be driven from this worm 35 is a worm wheel 36 fixed upon a transverse shaft 37 A part 38 of the casing 24 extends downwardly about the worm wheel 36. As shown in Figure 1, the

5 shaft37 carrying the worm wheel 36 has bearlngs m a pair of arms 39 and 40 which are pivoted upon ashaft 41 carried in a lug 42 upon the upright frame member 23,-these latter parts beingshown in Figure 4. By means 50 of this mounting of the shaft 37 in the'pivoted arms 39 and40 the worm wheel 36'is capable of swinging downwardly outof engagement-with the worm 35 to break the driving connection between the shaft 32 and the 55 transverse shaft 37.

Turning again to'Figure 1, securely fastened upon the two ends of the shaft 37 are a. pair of cranks 43 and 44, one of which is counterbalanced as shown at 44 fora pun Pivotally and adjustably connected to these cranks 43 and 44,: as by bolts 45 and 46 and a plurality'of coacting holes are a pair of connecting arms 47 and 48 respectively extending toward the frontof thermachine.

Projecting laterally from either side of the forward casing 33 are a pair of supporting arms 49 and 50 which terminate in forwardly extending portions 51 and 52 respectively. A T-shaped lever 53 shown more clearly in Figure 4 has a bearing upon the forward portion of the arm 52, and the forward end of the connecting lever is pivoted to this 'l'f-shaped lever 53 as at 54. As brought out in Figures 2 and 3, a second T-shaped lever 55Vhas a bearing in the forward end of the frame arm 51, and the connecting lever 47 is pivotally connected to this T-leve-r 55 as at 56. The thirdarm of the T-lever 55, as shown in Figure 3, is adjustably clamped to a transverse tubular member 57 as by-set screws 58. The third arm of the T-lever 53 is also adjustably clamped to the tubular member 57 adjacent its other end, as 'best shown in Figure 14, by screws 59.

A rotation of the worm wheel shaft 37 therefore through the cranks 43 and 44 and the connecting levers 47 and 48, swings the i - levers 53 and 55 about their bearings in the frame arms 51 and 52 and this movement of the T-levers swings the tubular member 57 The bearings for the T-levers in the arms 51 and 52 are substantially in line with each other and they are also substantially in line with the hat block 34 so that the swinging movement of the tubular member 57 is substantially about a lateral axis through the block supporting the hat. Loosely mounted upon the tubular member 57 are a pair of arms60 and 61 (the arm 61 being clearly shown in Figures 2 and 3), the other ends of which are adjustably clamped about the tubular member 62. This tubular member 62, through brackets 63 and 64 clamped thereabout, carries the pouncing tool which operates upon the hat supported upon the block 34. The pouncing tool' is indicated generally by the numeral 65 in Figures 1 to 4 inclusive and its mounting and operation w'll be later described in detail. The pouncing tool bears against the surface of the hat and, as will be seen, is adapted to traverse from the position shown in Figure 1 upwardly and over the side of the hat and back again, as the T- levers 53 and 55 are swung by the action ofthe cranks 43 and 44 and the connecting arms 47 and 48 during rotation of the worm wheel shaft 37. j c

Turning now to Figure 7, there is shown the shaft'32 driven from gearing within the casing 31, as will be described, and extending .through the tubular casing 24 into the forward casing 33 in front of which the hat is supported and rotated as has been mentioned. Securely mounted within the casing 33 and against the rear wall thereof is a plate member 66, shown'more clearly in Figure 12, which comprises a pair of vertical V-ways 67. Slidably'mounted in these vertical V- ways is a plate member 68 the face of which is provided with a circular-cam groove 69. The shaft 82 passes through an elongated opening in the plate 68 and securely mounted onthe end thereof,'as a pin 71, is a circular member 71, shown more clearly in Figure 11., which isprovided on its front surface with apair oftransverse V-ways 72.

The circular member 71 with its V-ways therefor rotates with the. shaft 82. Carried in the V-ways 72 of the member 71 is a plate member or silde 73, Secured in the. plate member 78 is stud pin 7a which extends rear wardly through the elongated slot in the member 71 and carries a segmental shoe '7 6 resting in the circular cam groove 69 of the cam plate 68. In the position shown inthe drawing the parts within the casing 83 ,areiall on center. with respect to the axis of the shaft 82. It will be seen that by moving the cam plate 68 in its vertical stationary l -ways, the shoe 7 6 being engagedwith the cam groove 69, the slide orplate 73 may be moved off center or intoeccentric position with respect to the axis of theshaft 32.

Thisiplate 78 has a forwardly projecting hub 73 which, as better shown in Figure 9, is slotted to receive gripping fingers 79, shown as three in number, whiclrare pivoted as at 80 within the hub. These gripping fingers 7 9 project outwardly through openingsin aplate 81 secured to the forward'end of the hub 7 s as; by screws 82. The outer surface of the hub '78 is threaded, and

threaded thereon is a sleeve 83 which, when threaded outwardly, engages tapered surfaces of the fingers 7 9 as shown in Figure 7, urging them toward the axis of a projecting stud '7 8 to firmly grip the hub 84:? of the hat block. The fingers 79 are urged in the opposite directionby springs 8 L so that when the sleeve 83 is threaded inwardly the grip upon the hat block is released. The stud 78 adapted to enter the center hole in the hat block and center the hat block with. respect to the plate 73. It is held in position between the plate 81 and the plate 73 and the rear hollow end thereof fits over the head of a ber 87 is spaced from the flange 85-by these lugs 86 andwith-the flange 85 forms a channel on the outer surface of the sleeve 83, which j channel is subdivided by the projecting lugs 86. Upon the circular surfaces provided by the .outeredges of the flange 85 and the ring8i isslidably fitted a ringshaped member 88' whichhas pair of lugs 89 resting in thechannel and adapted to slide with the ring 88 between the two lugs 86 between which they rest.' The ring shaped member 88 is provided with handles 90 by means of which it maybe conveniently engagement with the same and when it necessary to remove the block considerable rorce must be applled to turn the sleeve 88 and release the grip. The loose mounting of the handle carrying member upon the threaded sleeve permits the former to be rotated back and forth relative to the sleeve to bring about a sharp impact of the lugs 89 against the lugs 86 and this impact readily loosens the gripping sleeve without necessitating great effort on the part of the operator. It will be evidentthat this is also of advantage in securing a firm grip upon the hat block as wellas in bringing about the release of the same. v

in order that the handle carrying ring 88 may not be wholly free to slide around reia tiveto the sleeve 83, restraining means, such that shown in Figure 10, is preferably employed. Each of the lugs 89 uponthe ring 88 is recessed as indicated at 91 and fitted in these recesses are friction members 92 urged against the ring 87 by springs This friction 18 preferably just enough to prevent sliding of the handle carrying ring 88 due to its own inertia but is not suflicient to interfere with manual operation thereof above described. tween lugs 86 are moistened. with oil.

ihfi best shown in Figure 11,11 308! the periphery of the circular plate 71, which above described, is rigidly secured to the positioned felt strips shaft 852 and rotates therewith, is a brake band 94adapted to be operated by a handle which projects upwardly through the casing 33 and is pivotedthereto at 96. The brake, band 94L is adapted to grip the rotatable plate 1 and thus hold the shaft 32 stationary while the gripping mechanism above describedis being operated to grip on release the hat block. ln'Figure 11 the brake 94 is shown in gripping engagement with the plate 71 and it will be seen to be locked in such position by a toggle mechanism com prising a lever 9? connected to thehandle 95 as at 98 and a lever 99 pivoted tothe casing 38 as at 100. By pushing the end of the lever 99 downwardly toward the 83, the locking toggle is releasedand the .3 brake is thereby released. The bltllKQlS aujusted by means of lock nuts 101 upon a In the spaces 88 lee-c pouncing tool against the threaded pin 102 between the handle and the opposite end of the brake band94. It may be here noted that this brake is preferably employed but may be'dispensed with if desired, the inertia of the shaft 32 audits parts serving ordinarily to hold the shaft stationary as the hat block gripping mechanism is operated by the impact mechanism described.

The mechanism; within the casing 33 is adapted to operate in oil which is placed in the bottom portion of the casing and picked up by the revolving plate 71. The oil may be introduced through a cap 103 at the top of the casing, and a drainlOd is provided at the bottom for drawing off the oil when desirec. Tncrder that this oil may be prevented from working out of the casing 33 toward the block supporting the hat, a. *ing shapedwiper is seated in the forward wall of the casing and urged against the surface of the rotating plate 73 by spring pressure. 7 A plate member 106 rests loosely about the sleeve 83 and is spring pressed and held against the outer surface of the casing33 as by bolt 10? passing through slot 106%toprevent the access of dirt or dust to the interior of the casing.

As has been described above, thepouncing tool, thus far generally designated by th numeral 65 is adapted to traverse across the surface of the hat supported upon the ro tating hat block 3 1, from the tip of. the hat upwardly across the square of the hat to the side por ions thereof the square being the term generally applied to the portions of the hat joining the tip and the sides. When the pouncing tool is operated upon the side portions of the hat, its pressure against the hat is determined by the weight of the pouncing tool and its connected parts, restrained or augmented to a predetermined degree by means which will be later described. The hat is oval in shape, that is it has two axes, a

major axis between itsfrontaud rear ends and a minor axis at right angles-thereto. Thus if the hat 1s continually rotated about its axis through the tip, the s de surfaces thereof in contact with the pouncing tool generate an oval. The result is that wk the tool is operating upon the side portions of the hat, during part of the rotation of the hat. a lifting effect is imparted to the tool which increases the pressure of the t hat, whereas, during another part of the rotation, the pounc ing tool is'permitted to fall and the pressure of the poun'cing tool against the hat is decreased. The result of this is uneven finishing, the portions ofthe hat which do the thehat operated upon while the pouncing toolis falling. Turning again to Figure 7,

it will be seen thatbyflproper movement up and down of -the nonrevolving slide 68 in its V-ways, the axis of the stud 7 8 which is coincident with'the axis of the'hat through the tip may be shifted during rotation of the hat. This shifting may be made such by proper movement of the'slide 68 that the side surfaces of the hat in contact with the tool travel not in an oval, but in a circle.

It may be here notedthat in order to properly position the hat block carrying the hat with its major axis proper relation to the V-ways of thejrotating plate 71; a pin 108 is positioned in the front plate 81 against which the base of thehat block rests. This pin is adapt-ed to engage with a recess in the hat block on the line of its minor axis.

The position of the slide plate 68 in its V-ways is controlled'by a lifting rod 109passing upwardly through the bottom of the casing 33. Suitable packing 110 held in place by a-bushing 111 is provided about the rod 109 to prevent oil from leaking downwardly along the rod from within the casing 33.

The lifting rod 109 passes downwardly through the table 20 of the frame of the machine and, as shown in Figure 4, at its lower end is connected as at 112 with a foot lever 113 pivoted to the frame leg 21 as at 114. Thus a downward pressure upon the foot lever 113 will lift the rod 109 and raise the slide or'cam plate 68 in its V-wa-ys. As shown in Figure 7, the rod 109 above thetable 20 is threaded and'threaded thereon are two pairs of lock nuts 115, and 116 respectively. The lock nuts are set on the rod so that they rest upon the frame 20 when the cam slide 68 is in central position concentric with the shaft 32. Between the lower face of the frame 20 and a clamping-collar 117 is a'compression spring 118which urges the rod 109 downwardly tending to maintain the lock nuts 115 against the upper surface of the frame and the'cam plate 68 in central position.

, Between the two sets of clamping nuts 115 and 116 is a collar 119 fitted loosely about the rod 109. Threaded upon this collar 119 is a collar 120 which, as best shown in Figures 4 and 6,'has a right angle stud 121 upon which is pivoted a link 122. The other end of the link 122 is pivoted upon a'stud pin 123 which passes through the end portion of a rock lever 12 1 and is secured therein as by a set screw 125. This rock lever 124: is pivoted upon a pin 126 secured in a lug 127 of the upright frame arm 22.

a slotted connection ,andpin 129 by which it is secured to the worm wheel. This cam 128 is adapted to engage a roller 130 mounted upon the right hand end of the rock lever 124,

' the details of which mountingjare shown in Figure When the worm wheel 36 is in engagement the cam 128 is revolved and, contacting the roller 130, the cam pushes the right hand end of the lever 12-l downwardly raising its left hand end, which through the collar 120 engaging theupper lock nuts 116, raises the lift rod 109 andthe cam plate 68. The cam 128 thus serves to bring about the desired eccentricity ofmovement of the hat to cause its side surfaces contacting with the pouncing tool to move in a circle. Thedegreeott oval of a hat varies through different sections from the brim tethe tip so that asthepouncing tool traverses the hat a changing degree of eccentricity isrequired; The outline of the cam 128 is designed to give the proper change inthe degree of eccentricity of the cam plate 68 so as to be in harmony with the outline of the oval section with which the traversing pouncing tool is in contact at any instant. This change is slightly different on the sections of different styles of hatsand the cam is made with a broad face, the shape of which at one side is suitable to take care of one extreme of style, and the shape of which at the other side is suitable to take care of the other extreme of style. The intermediate portions of the surface of the cam take careof styles the nut and roller are moved along the pin.

Referrin again to Figures? and '12,.it will be seen that when the cam plate 68 is moved upwardly into eccentric position with respect to the shaft 32, and whenthe segmental slide '5 6 is in the upper position in the circular cam groove 69 (this position being shown in the drawings) the axis of the stud 7 8 and hencethe axis of the hat are drawn upwardly an amount equal to the eccentricity of the cam plate 68. When a half revolution occurs, the segmental slide 76 moves to the bot om position in the circular cam groove 69 and again moves the axis of the stud 78 upwardly the same distance. Therefore, this eccentric motion occurs twice in a revolution and therefore there is generated by the axis of the stud 7 8 an oval whose major axis is greater than its minor by twice the dis tance that the cam plate 68 has been moved upward off center. To set the machine so that an oval of the hat to be operated upon may be generated, the machine is stopped when the cam 128 has revolved so that its .hi 'h withv the worm and is revolved thereby b the shaft 41. V

1851 through which passes a rod136 susw e t point is contacting the roller 130. Thereupon the rod.109 is moved up by means of the foot lever 113 and a member of a thicknessequalto halt the difference between t e major and. minor axes ot the oval required placed beneath the lock nuts 115. The lock nuts 115 are allowed to rest upon this member and thereupon the lock nuts 116 are moved the upper surface of the collar 120 and locked securely in place. The memher is then removed from beneath the. lock nuts 115 and the machine is setto: generate an oval of the required size.

v The spring 118 in. addition tote'nding to keep the cam plate 68 011 center and to steady movement, also tends through contact. of the collar 120 with the lock nuts 116 to force the left-hand end of the rock lever 12 1 downwardly and the right-hand end thereof upwardly. The spring 118 therefore, through the lever 124, tends to raise the cam 128 together with the shaft 37 and the worm wheel 36 tending thus to force the worm wheel into engagement with the worm.

The worm wheel shaft 37, as has been described, is mounted in a pair of pivoted arms 39 and 40 whereby the worm wheel 36 may swing into and out of engagement with the worm 35. @ne of these pivoted supporting arms 40 is shown in Figure 7 pivoted upon Thlsarm 40 has an extension pended from a web of the upper framememher 2 1-. About this rod 136 and between the arm 185 and a nut 137, is placed a compression spring 138. The weight of the supporting arms 39 and 40 together with the parts carried thereby, including the shaft- 37 and the worm. wheel 86, tends to swing the worm I wh el downwardly out of engagement with the worm 35. By regulation of the adjusting nut 13'! the compression in the spring 138 may be adjusted and this compression is so adj ustcd that it will just nearly balance the downward pressure caused by the weight of the arms 39 and dO and the parts which they carry.- The spring 118 therefore uponthe rod 109 acting through the rock lever 124E easily raises the worm wheel into engagement with the worm as the cam 128 revolves against the roller 130 to actuate the eccentric mechanism. scribed, then acts temporarily as a fixed abutment against which the-cam 128 revolves, the worm wheel being thereby raised into engagement with the worm before the'subseqnently acting surface of the cam moves the roller nd the rock lever 124 downwardly to ac uate the eccentric mechanism.

Normally to start the operation of the machine upon a hat, asdescribed with regard to Figure 1, the tubular members 57. and 62 are swung about the hearings on the end por tions of the arms 51 and 52 to bringthe tool to the position shown in the drawing,

The roller, as has been deposition against the tip of the hat.

against the tip of the hat. At this time the worm wheel 36 is out of mesh with the worm 35; The tubular member 57, as has been described, is connected through T- levers 55 and 53, connecting arms 47 and 48 and cranks 43 and'44 with the worm wheel shaft 37. When the tool is swung by hand to starting position against the tip of thehat therefore the worm wheel shaft 37 is rotated. The

cam 128 adjustably fastened to the side of the worm wheel 36 is set so that this rotation by hand to bring the tool to starting position against the tip of the hat bringsthe beginning of the acting portion of the cam in contact with the roller 130. Thus the machine isautomatically started by simply swinging the pouncing tool by hand into operaiye e counterweight 44 upon the crank 44 facilitates this action and prevents backward movement.

As shown in Figure7, there are provided beneath the worm shaft 37 a pair of props 139, one only of which is shown in this fig ure, the other being similar in construction and positioned on the opposite side of the worm wheel. These props 139 are fastened upon ashaft 140 which is pivotedin a lug on the top of the frame table 20. The props are provided with an adjustable counterweight 141 which causes them to swing with their shaft. 140 to the position shown in the drawing immediately that the worm wheel 36 is raised upwardly into engagement with the worm. In this position the props support the worm wheel shaft 37 and its parts assisting the action of the cam 128 in holding the worm Wheel in engagement with the worm, as has been described. above. The weight carried by theprops139 is slight, their purpose being chiefly; to take care of the extra downward pressure caused by the worm drive and they are an assurance against disengagement of the worm wheel and worm or the stopping of the machine until it is desired.

Secured upon the shaft 140 with the props 139 is a tripping lever 142. A clamping collar 143 adjustably secured'upon the worm wheel shaft 37 carries a swivel mounted trip 144 which is adapted to engage the tripping lever 142 at a predetermined point .in the rotation of the shaft 37 to automatically throw the props 139 out of supporting posi tion. The point at which this tripping of the props 1'39 occurs may be varied through adj ustment of the clamp 143 and the clamp is normally set so that this action takes place just after the pouncing tool 65 has traversed over the side portions of the hat and back to the tip.

Referring to Figure 5, the first action portion of the cam 128 which, as above described, acts to automatically lift the worm wheel 2% into engagement with the worm 35 when the pouncing tool 65 is placed in starting position on the tip ofthe hat, is designatedby the hat and back to the tip, is the portion at 128". Between these twoportions 128 and 128 the surface of the cam is undercut substantially at 128. This undercut portion 128 revolves past the surface of the roller 130 just after the tool 65 reaches the tip of the hat, at the end of its traversing movement; The adjustmentof the lock nuts on the lifting rodi109 is such that when the first acting portion 128 of the cam is in engagement with the roller the cam does not act to lift the rod 109, the sliding cam plate 68 being on center, (no eccentric motion'being desired at this point when the tool is operating upon the tip of the hat), The lock nuts'115 being at this point in engagement with the surface of the table 20, this position of the roller 130 in engagement with the part 128 of thecam marizs the uppermost position which the roller can assume under the action of the spring 118 on the lifting rod 109. The roller 130 therefore does not contact with the undercut portion 128 of the cam, but leaves a clearance between this undercut portion and the roller surface. At this point the pouncing' tool 65 has completed its traverse and returned to the tip'of the hat and the cam 144 trips the props-139 and the worm wheel is allowed to drop downwardly out of engagement with tile 01111. As soon as this happens the counterweight 44 of the crank 44 rotates the shaft 37 a little further and the pouncing tool 65, by means to be later described, is drawn out of engagement with the hat.

From the above it will be seen that the machine thusv far described is automatically started by swinging the pouncing tool 65 into engagement with the tip of the hat. Furthen more, the operation is automatically stopped when the tool has traversed across surface of the hat and back to the tip.

It is desirable that the roller 180 more a short distance up into the undercut portion 128 of the cam 128 so that it is in position to automaticall raise the cam and its parts upwardly as soon as the first acting port-ion 128 of the cam comes into contact with the roller. As has been described above, the spring 118 on the lifting rod 109 does not dothis. F or this purpose, as shown in Figure 6, there is attached to. the pin 123 at the left-hand end of the rocker arm 124 a rod 145 extending downwardly through the table 20 and provided therebeneath with a compression spring 146 and adjusting nut 147. An adjustable collar 148 on the rod 145 above the table 20 determines the extent to which the spring 146 may raise the roller 130 and this is adjusted so that the roller slightly enters the undercut cam portion 128, leaving 1 il t) pin 151. When t-hefifoot lever 11:; 1

the clearance required to permit the worm wheel to drop out (if-engagement with the worm at this point.

Referring to Figure 4- by j downwardly upon, the foot lever 1e roller 180 may at any time be forcednownn'ardly out of engagement with Threaded into alug 1 19 at tl end of the lever 12 1 carryin is an adjustable stud 150 an shaft 140 which carries'the pro-3s pressed carrying the cam roller 130 downwardly the stud -0 strikes thepin a d swings the props 139 out of supportingosition. Thereupon-the pressure of l fore be stopped at any time by ope ation of casing31 drives the shaft The hub the foot lever 113. Furthermore, b the use of this foot lever. thepouncing tool may be swung to any position of its traverse that is desired. whereupon, the pres the foot lever being relieved, the tool will automaticallyresume itst andthe niachine'will automatically stop 1.1 the traversingmovement is completed and the pouncing tool returns to the hat. In this manner any desired per the hat may be operated upon to any sired degree independently of 'the reina...iing portion of the hat. i 7

Referring new again to Figure i th re is shown the pulley 29, which, as hmentioned, through gearing within the the of the pulley 29 is secured to a hollow s 152 which rotates freely within an'ezrtens 153 of the back cover plate 31 ofthe casin 31. 152 forms a pinion 15 1 which meshes with a gear 155 freely mounted upon a stud be" ing 156. The size relation. of the gears and 15 1 is 2 to 1. i The stud bearing 156 projects through slot in the cover plate 31 and is secured by a nut 157 to an arm 158 which is freely mountee to oscillate on the exterior of the extension 158 of the cover plate. These parts are also shown inFid ure 13. r Y

Projecting from the inner face of the gear 155- is a drive pin 159 which enters an opening in a link 160. Engagii another hole in the link 160 is a second drive pin 161 which projects from the face of pinion 162. V T pinion 162 is of the same size asthe pinion 15 1, has its bearing on fixed stud 163 and meshes with a gear 16dwhich is of. the same size as the gear 155. v This gear 16 l-is mounted to revolve freely on the rear portion of the shaft 32. j

On the front face of the pinion 15 1 are ward by the slide piece 168 it engages the The right-hand end of this hollowsl'ia' rt clutch dogs 165 and on the rear face of the gear 164.- are clutch dogs 166. Between these two clutch faces is a spacer collar 16?. The rear end of theshaft 32 ishollow and slidably fitted therein is a slide piece 168 circular in cross section and adapted to slide longitudinally within the hollow shaft 32. This slide piece 168 adjacent its front end has a transverse slot in which rests a double clutch dog 169 which is heldin place by the pointed end of a rod 170 )assing centrally through the slide piece 168 from its rear .end. The clutch dog 169 projects through an elongated transverse slot 171 inthe hollowzportion of the shaft 32. The clutch dog'169. is therefore in continual driving engagement with the shaft 32. I

Bymeans of the slide piece 168, the clutch dog 169 may be moved backward to engage V with the dogs 165 on the pinion 15 1, or forward to engage with the dogs 166 on the gear 164. The pinion 15% is in continual driving relation with the gear 16 1 through the gears 155 and 162 and the link 160, but without the clutch dog 169 there is no driving connection between the gear 15 1and the shaft 82, since the gear 16 1 is loosely mounted upon the shaft Inthe position shown inthe drawing, the clutch dog 169 is in engagement with neither the. gear 15 1 nor the gear 168 and no drive is imparted to the shaft hen the clutch dog 169 is moved backdogs 165 and a direct drive-is had from the pinion 154 to the shaft 32. VVhen' the dog 1.69 is moved forward by the slide 168itengages the dogs 166'and a driving connection is established from the pinion 15s through the gear 1555, link 160, pinion 162'and' gear 16 1 to the shaft 32, driving the lat-tr at fl the speed of pinion 154E. v

The position of. the slide 168, and hence of the clutch dog 169 is'controlled by a lever 172. through which the slide 168 passes as at 17 3 and is looselyheld by a clamp nut 1741. The lower end of the lever 172 is pivoted at 175to a fixed support .17 6 threaded into a bracket 177 which is secured to the upright frame member 23. The upper end of the lever 172 is pivoted at 178 to the end of a rod 179 which extends forwardly through two bearing supports 180 and 181 to the front of the machine. About this rod 179 adjacent its central portion is a slidable collar 182 between which, and a pair of clamping collars 188 and 18 1 are interposed compression springs 185 and 186. As shown inFigures 1 and 4e the slidable collar 182 has pivoted thereto at 187 a rod188. which at its other acting through the springs 185 and 1 86 yieldingly urges the rod 17 9 rearwardly and hence yieldingly urges the clutch dog 169 into en-' gagement with thedogs 165 on the gear 154. A forward movement of the handle 189 in likemanner yieldingly urges the clutch dog 169 into engagement with the dogs 166 on the gear 164. By means of the handle 189 therefore, the clutch dog 169 may be moved in either direction from its neutral positlon shown in the drawing, and this through a yielding connection which greatlydecreases wear and tear upon the clutch parts; In the web 25 are provided three holes 191 which are adapted to be engaged by a pin 192 car-' ried by the handle 189. This pin is yieldingly urged into engagement with the holes 191 and is controlled by suitable retracting device'198 projecting from thetop of the handle. These three holes correctly position the handle 189 for positioning the clutch dog 169 in its three respective operating posi-i tions.

The rod 179 extending forwardly through its forward bearing support 181 is provided adjacent its end with a pair of collars 194 and 195. The space between these collars is in line with, and adapted to receive the shank of the brake handle 95 when the brake is in gripping engagement with the plate 71 upon which it acts, and when the handle 189 is positioned in the central hole 191 and the V clutch dog-169 is therefore in neutral position. Thus the rod 17 9 cannot be moved and the rotation of the shaft 82 cannot be started until the brake handle 95-is moved to position of release. Furthermore, when the clutch dog 169 is in either of'its driving positions to drive the shaft 32, one of the collars 194: or 195 is in the line of. movement of the brake handle 95 so that the brake cannot be applied the casing 31, shown in Figure 7 the axis of the movablestud bearlng 156'carry1ng the gear 155 is shown in line with the fixed stud 163 carrying the gear 162. VVith these parts in such position a constant motion is transmitted from the constantly rotating gear 155 through the link 160 and its drive pins 159 and 161 to the gear 162 The axis of thestud 156 may be thrown out of line with the axis of the stud 168 by swinging the stud supporting plate 158 about its bearing on the extension 153 ofthe back cover plate 31. The action between the gears 155 and 162 through the link 160 and its driving pins,

that of a four-bar linkage.

, greater the distance between the axis of the driving gear 155 and the axis of the driven hen the stud 156 is positioned out ofline with'the gear 162, the greater the variation in angular velocity during each revolution. Due to the ratio of 1 to 2 between the gears 162 and 164:, this change in angular velocity of the shaft 32 occurs twice in each revolution of the shaft 32. The hat rotated by the shaft 32 may thus be given a rotation of varying angular velocity, which velocity changes twice during each rotation of the hat.

On account of the oval shape of the hat, it is evident that the end portions of the sides of the hat are of sharper curvature than the broader andflatter side portions, and therefore the contacting surface of the pouncing tool on these end portions is less than the contacting surface of the pouncing tool on the flatter side portions. The result of this is that the intensity of pressure of the pouncing tool on the ends of the hat crown is greater than the intensity of pressure of the pouncing tool on the side portions thereof, causing uneven finishing of the hat unless compensated for. By the mechanism ust described, the hat may be made to rotate faster when the pouncing tool is operating upon the end portions, than whenthe pouncing tool is operating. upon the flatter side portions.

In order that the changing angular ve locity may be in' harmony with the rotation of the hat, so that the greatest angular velocity will be thrown into action when the pouncing tool is working on the end portions of the hat crown and so that the slowest angular velocity will be acting when the pounoing tool is working on the flatter sides of the crown, the aXisof the hat must be se in definite angular relation with respect to the angular velocity mechanism within the casing 31. This is done by placing the elongated transverse slot171 in which the dog 169 slides in line with the transverse V-ways of the revolving plate 71. As has been described before the pin 108 on the front plate 81 aligns the major axis of the hat with these V-ways. In order to set the angular velocity changing mechanism in proper position so that the resultant fast and slow motions of the shaft 32 will occur at the proper time in reference to the major of the hat, and in harmony with the oval changing mechanism, the position of the pin 161 isset in predetermined relation to the line 01 the dogs 166 on the gear 16 1 and by changing the position in which the two gears 162 and 164 mesh, the angular change may be caused to occur earlier or later in reference to the shaft 32 and the major axis of the hat.

As has been stated in connectionwith the description of the oval changing mechanism, the oval sections of the hat vary from the brim toward the tip of the crown portion, this change varying with difierent styles of hats. By the mechanism now about to be described, the degree of variation in the angular velocity of the hat is automatically ryingrod 226 is an adjustable clamping colhr 230 above the bracket 228 and by proper adjustment of this clamping collar the effect of the weights'227 may automatically be removed at any desired point in the traverse of thepouncing tool. For example, the collar 230 may be adjusted sothat the action of the weights is removed just as the pouncing tool passes over the square of the hat and with this adjustment the pouncing tool continues its traverse across the sides of the hat and backagain to the square exerting the pressure occasioned only by its ownweight.

'Thereupon when the fpouncing tool traverses back across the top of the hat, the weights 22? again come into action to draw the pouncing carrying the pulleys 26 and 28 at the rear of the machine, enters the gearbox 234 in which it is connected through suitable gearing to drive a shaft 235 projecting from the gear box 234 at right angles to the shaft 27. This shaft 235 carries a pulley 236 which, through abelt 237, drives apulley 238. Thebelt 237 v is provided with an idler tension pulley 239 mounted upon a bracket 240 which is pivoted upon the supporting arm 52.

Referring to Figure '14, there is shown a pulley 238, formed integrallywithwhich is a sleeve 241 which passes through the tubular end portion 52 of the supporting arm 52.

The pulley, 238 and its sleeve 241 are there fore rotated within the tubular part 52 and at highspeed by the belt v237 from the gearing within the gear box 234. The sleeve and pulley rotatepreferably upon ball bearings 242 and 243. The outer raceof the ball bearing 243, as will be seen, is supported within the hollow hub of the T-lever 53 which has been described. I j p Within the pully 238 is secured a transverse stud pin 244 upon which is freely mounted a rock shaft 245. 'The outer end 245? of the rock shaft 245 through ball bearings 246 and 247 carries an oscillating arm 248. :The in: nor end 245 of the rock lever245 projects freely within the driven sleeve 241. Its upper'surface 245 is shaped to conform to'the inner wall of the sleeve 241 so thatwhen, as

shown in the drawing, this surface is against the inner wall of the sleeve 241, the axis of the outer end portion 245 is in line with the axis of the pulley 238 andthe sleeve 241. Thus, when the surface 245 moves away from the wall of the sleeve 241 bythe lever 245 rocking upon its pin 244, thezouter end 245 is moved out of aligment withthe'axis of the sleeve241 'so that its rotation generates a cone and imparts an oscillating movement to the arm 248. The surface 245 opposite thesurface 245 also conforms to the contour of the inner wall of the sleeve 241' and when this this position the oscillations imparted to the arm 248 are of maximum amplitude. Be" tween {these two positions of the arm 245", that is, between its position with the surface 245 in contact with the sleevewall a'ndits surface 245 in contact with the sleeve wall, a varying amount of oscillation is imparted to thearm 248. The arm is restrained from rotation with the arm 245 by means of a light arm 249 which engages with a siot in ameniher 250 projecting from the left-hand end of the tubular pouncing tool ca 'ingmember 62. This member 250 is preferably of light material such as fibre and is secured by spring connection 25]. passing through the tubular member 62 and connected to a cap- 252 at the opposite end thereof as shown in Figure 3.

At the end of the. oscillating arm 248 is a hollow pin 265 through which the arm 249 passes and to which is pivoted a lug 266'. Pivoted to this lug 266 is a connecting rod 26'? through which the oscillations of the arm 248 are imparted to the pouncing tool 65 which, as was earlier described, is mounted ugai force during rotation to swing the arm so that the surface 245 tends to move toward the Wall of the sleeve 241 and the opposite surface 245 tends to move away from the wall of the sleeve. In order to aid this move ment in case oil or grease should tend to stick the surface 245 against the wall of the sleeve 241,'a' compression spring 253 isseated in the arm 245 and through a slide 254 tends to in cross sectionand projects from the righthand end of the sleeve 241'. The inner end of the slide 255 is tapered andseated therein isa hardened shoe 256 which contacts with a changed, during traverse of the pouncing tool across the hat, in harmony with these changing oval sections. The'cam 128, as described, has an outline shaped to move the rock lever 124 (shown in Figure 4) through the roller 130 in accordance with the changes in the oval section which the pouncing tool is traversing. This movement of the rock lever 124, by the cam 128', is therefore utilized to ah ect the angular velocity mechanism to vary the degree of velocity change imparted to V the rotating hat.

Referring now' principally to Figures7 and 13, on the back of the cover plate 31 are vertical guides 196 in which rests a slide 197 havingan angular slot 198 through which the stud 156 carrying the gear 155 passes. Thus, by movement of the slide 197 in its guides, the stud 156 may be swung to one side or the other relative to the fixed stud 163. Pivoted to the slide 197, at 199, is a rod 200, which as shown in Figure 4, is pivoted at its lower end at 201 to the right-hand end of a rock lever 202. This lever 202 is pivoted at-203 upon a bracket 204 and at its other end is pivoted at 205, a link 206. The rock lever 124 is provided with a plurality of holes 207 through which connection is made between the link 206 and the rock lever 124 by a pin 208. 7

Thus the swinging of the rock arm 124 in response to the action of the cam 128, is im: parted to the vertical slide 197 which accordingly moves the axis ofthe stud 156 carrying the gear 155. In this manner the degree of velocity change in the rotation of the hat is automatically varied in accordance with the changing oval sections of the hat which the pouncing tool is traversing. The distance cf'the connection 208between the link 206 and the rock lever 124 determines the amount of movement imparted to the vert'cal slide 197' by the cam 128. This may be adjusted by changing the connection 208 along the dilferent holes 207.

"Connected to the rock lever 202 at 209, is a rod 210 which passes downwardly through a lug 211 and is provided with a compression spring 212 and an adjusting nut 213. The spring 212 acts in opposition to the upward movement of the slide 197 and serves to steady its movement. As shown in Figure 13, a slot 214 isprovided in the plate 197 engaging with a pin 215 in the cover plate 31 to prevent accidental movement of the plate 197 too far, so as to throw the linkage controlled by the stud 156 out of proper position and cause binding. V

' During the changing angular velocity of the shaft 32, the mass of the shaft and its connected parts, including the hat, tend through their inertia, to continue at the faster angular velocity so that there 1s a tendency forthe changes from the fast angular velocity to the slow angular velocity to be non-uniform.

Furthermore, there is some tendency toward an oscillating movement of the shaft 32 allowed by play in the gears due to the action of the pouncing tool upon the surface of the hat. In order to overcome these difficulties and others, as shown in Figures 7 and 8, there is placed against the shaft 32 a friction member 216 which is urged against the shaft by a compression spring 217 contained in a housing 218 secured to the frame 24. By means of the set screw 219 and lock n-ut 220, the compression in the spring 217 and hence the re straining action of the friction member 216 on the shaft, may be adjusted.

Turning now to Figure 15, there is shown the tubular member 57 which, as has been described, is swung by the action of the cranks 43 and 44 on the worm wheel shaft .37, through the connecting arms 47 and 48, to cause the pouncing tool to traverse across the surface of the hat supported upon the block 34. As has also been described, the pouncing tool 65 is carried by the tubular member 62 which is connected to the swinging tubular member 57 by arms 60 and 61. Adjustably clamped upon the pouncing tool carrying tubular member 62 is an arm 221 which serves as an anchorage for'the end of a cable 222. This cable 222 passes rearward ly over a pulley 223 mounted in a bracket 224 which is adjustably clamped on an upright vertical rod 225. This rod 225 is secured in the supporting arm 52 and passes downwardly therethrough toward the base ofthe machine. :Secured at the lower end of the cable 222 is a rod 226 at the lower end of which are mounted removable weights 227. The weight carrying rod 226 passes through a bracket 228 which is slidably supported upon the vertical rod 225 and whose position thereon is adjustable by means of a clamping collar 229. s r

The tubular member 62 is thus draw-n toward the hat and the pouncin-g tool is pressed into engagement with the surface of the hat by the action of the weights 227 pulling upon thearm 221. It willb'e seen that the pressure of the pouncing tool against the hat thus occasioned may be varied and regulated by adjusting the arm 221 about the tubular member 62 to vary the length of the arm of force through which the weights act, and also by the removal or addition of weights 227. The arm of force through which the weights act is lessened by adjusting the arm 221toward the positions shown indotted lines in Figure 15 and, by proper adjustment, the weights 227 may be made to either increase the pressure of the pouncing tool against the hat, or to exert a liftingeffect upon the pouncing tooland decrease the pressure due to the normal weightof the pouncing tool and its parts. In this manner a wide range of adjustment of pressure of the pouncing tool against the hat surface is obtainable. About the weight car roller 25? mounted on a transverse pin at the right-hand-end oi the arm 2 15 The slide 255 rotates with the sleeve 241 and the rocker arm 24:5, and on the right-hand end thereof are mounted a collar 258 and the.

held in a non-revolving collar 262 which is slidably held within a cap 268. An extension 264; of this collar 262 passes through an opening in the end of the cap 268. Thespring 261 tends always to force the slide 255, the ball bearing 259 and the collar 262' to the right. In the position shown in the drawing, this movement is restrained, the spring 261 being compressed its greatest amount to hold the rock arm 24-5 coaxial with the sleeve 2&1 whereby nooscillation is imparted to the arm 2 18. It will be seen that by controlling the position of the collar'262 in the cap 268 through the extension 264," the amount to which the surface 245905 the lever 2 15 is thrown away from the wall of the sleeve 24-1 by centrifugal force may be controlled, and

the amplitude of oscillation given to the arm I this yoke 269 are swiveled at 270 to the end of the bell crank lever [11 which forks around the cap 263. The bell crank lever 271 is pivoted upon a pin 2 72 in a lug 273 iornnng a part of the -ii -lever 53 and has a hooked e1:-

tension 21 5 whichenters through a slot to the interior of the tubulai." member 5'7. @ver this end 27 5 oitheball crank 271 is hooked the end of a pull rod 276 which passes through the tubular member 57and is connected at its other end, as shown in Figure 3. Referring to this figure, the right-hand end of the pull rod 276 passes through a collar 277 which fits loosely within the end of the tubular member 57. Passing through the collar2'l'lis a pin 278 which engages with slots in the end of. the

tubule r member 5? and prevents rotation of Freel mounted unon the out-' the collar.

7 rside of the tubular member 01 1s a ring 219 which is fastened to a handwheel 280 and has a cam surface adapted, when the hand-wheel and ring ace-turned, to engage the pin 2Y8 and thrust it, with the collar 27? and the rod 276, tothe right. On the end of the rod 276 is an adjustable nut 281 betweenw hich and the collar 27? is interposed a compression spring 282. This spring keeps the rod 276 taut and prevents rattle or disengagement 01 its leit-hand end from the hook 2'75.

Thus, by turningthe hand-wheel 280, conveniently positioned at the right-hand end of the tubular member a 57 the arm 2'75 :01" the bell crank lever 271 is forced to the left. This movement through theyoke connection 269 moves the slide 255 to the left against the ac tion of the spring 261-to decrease the amplitude of oscillation given to the pouncing tool. The amplitude of oscillation of the pouncing tool may thus conveniently be controlled by hand.

'lhearm 2'71 of thebell crank lever 271 is adapted to contact a roller 288 which is car- .with the T-lever 53. This arm 28% caries a second roller 285 in position to be acted upon by a. cam 286. This cam 286 is adjustably clamped upon the tubular end 52 of the supporting arm 52 and is tightened and adjusted thereon by means of the clamp screw handle 28?, as shown in Figure 15.

'lhe'arin 28% being carried bythe pin 5% thus par-takes oi the swinging movement of the T-lever and the member 57 as the tool traverses across the surface oi the hat. The roller 285 riding upon the cam 286 swings the lever 284; in a clockwise direction as viewed in Figure 15, and this movement through the roller 288 urges the arm 2T1 downwardly as viewed in Figure 1 1. This causes a mo 1 Oil'lElx'tiOlillO of their-ell ore arm 271 which, through the yoke269, forces the slide255 to the left againstthe action of the spring 261 to decrease the amplitude of re procation of the pouncing tool. The face 286 off the cam 286 has the shape of a segment of a circle, and when the roller 285 is riding on this circular portion, the slide 255 is moved to its extreme left position, thereby LCLOO centering the rock arm 2&5; and causing the rcciprocations of the pouncing tool to cease. The cam 286 is soqadjusted by means of the clamping screw 28'? that the roller 285 rides to 'the. circular portion 286 just afterthe pouncing tool 65 r aches the tip of the hat after its traverse across the hat and back again. The pcuncing tool'willithus remain free from oscillations until it is lifted back again to the tip of the hat atthe start ofthe .7

pouncing operation, as has been described.

When this isdone the roller leaves the high s rit'ace 286 oithe cam 286, permitting the slide 255 to move to the right and permitt ng the pouncing tool to resume its oscillations.

The arm 28-1 is bell crank in shape and, as shown in Figure 15,.its arm'QS -l eXtendsOut tending rod 290 which passes slidably through a lug loosely mounted upon a pin 291 at the end of the arm 23 .9. The end of the rod 290 is provided with an adjusting nut 292 above which is a small spiral spring 293.

WVhen the roller 285 rid es upon the high portion 286 of the cam 286, the arm 28% slides downwardly along the rod 290 and striking the spring 293 urges the rod 290 downwardly, which, through the arm 288, swings the arm 60 in a clockwise direction as viewed in Figure 15 carrying the tubular member 62 and the pouncing tool 65 away from the hat. When thecenter of gravity of the tubular member 62 and the pouncing tool swings past the verticalcenterline of the tubular member 57, they tend to fall further due to gravity and a spring 294: on the rod 290 limits this movement and absorbs the shock,

The automatic stopping of-the tool reciprocati-ons by the cam 286 and the lifting of the pouncing tool away from the hat by the arm 284 as just described, preferably occurs just before the worm wheel 36 automatically drops out of engagement with the'worm 35 as previously described; The actions of these parts are all subject to adjustment and can be set to occur at the desired time and in the desired'oroer. It will be seen that the entire operationv of the machine, including the oval changing mechanism, the velocity' changing mechanism, the pouncing tool traversing mechanism and the pouncing tool reciprocating mechanism is automatically started when the pouncing tool is lifted into engagement with the hat and is automatically stopped when the pouncing tool reaches the end ofits traversing movement.

Vithreference again to Figure 14: pivoted upon the same pin 272 which carries the ell crank 271 is a lever 295, the left-hand end of which is adapted to be engaged by a roller 296. This roller, as shown in Figure 15, is carried upon an arm 297 which is pivoted with the arm 234. upon the same pin 54. The arm 297 carries a second roller 298 mounted in an adjustable slide299 whose osition' on the arm 29'? is determined by a screw 300 adapted to enter holes 301'on the arm 29?, as shown in Figure 14. The right-hand end of the arm 295 contacts the end of an adjustment screw 302 threaded into a lug 303 of the bell crank 271, Thus, a movement"downwardly, as viewed in Figure 14, of the left-hand end of the'lever 295 under theaction' of the roller remaining portions.

296 swings the bellcrank 271 to the left to tend to decrease the amplitude of reciprocations imparted to the tool.

The roller 298 engages a cam 30%: which as shown inFigure 14, is secured by screws 305 to a casting 306 which is loosely mounted upon the hollow part 52 of the supportingarni 52. This casting 306 also supports the outer race of the ball bearing 242 and is provided with a handle 307 by means of which its position upon the part 52, and hence the position of the cam 304lmay be adjusted. The casting 306 is provided with a rear extension 306, as shown in Figure 14?, in which is a circular se mental slot through which passes a pin308 extending therefrom through the hollow stud 309 which supports the bearing arm 2 10 of the tension pulley 239. At the right-hand end of this pin 308 is a compression pring 3l0'and an adjusting nut 311. The spring 310 urges the pin 308 to the right and this through asuitable friction collar 312, thus urged against the extension 306 of the casting 306 through the segmental slot in which the pin 308 passes, restrains the handle 30'? from free movement, but permits convenient adjustment thereof.

The outlines of axial sections of a hat, that is sections taken parallel to an axial line through the tip of the hat, vary greatly in sharpness of curvature, the curvature being much sharper at the portion joining the square of the hat than is the curvature at the The surface of contact between the pouncing tool and the hat therefore varies greatly as the pouncing tool traverses the surface of the hat, the surface of contact being much smaller at the portions of sharper curvature at the square of the hat and hence the intensity of pressure being substantially greater at this portion than at the other portions of the hat. The degree of curvature at the-square also varies greatly with dif erent styles and shapes of hats. The cam 304i is designed to automatically decrease the length of reciprocations of the pouncing tool as it passes over the sharp square of the hat, and thus compensate for the increased intensity of pressure at these points to make uniform the amount of work done on all parts of the hat.

In Figure 15, the camr30at is viewed in end elevation and it is seen that the outline of its acting face'at the near end is more pointed nd its highest acting surface therefore shorter than is theoutline of the acting surface at the far end, where its high portion is fuller and longer. The outline of intermediate portions va y gradually from the contour at the near end to that at the far end. The acting surface of the cam at the near end .is designed to take care of hats having the sharpest curvature at the square, while the V handle 307 so that the roller 298 carried by he arm 297 contacts the hi hest ortion 1 the proper time, which is gust as the pounv curvature of the square of the hat.v When the roller 296 rides up on thecam el,'the lever 295, is viewed in Figure 14, is depressed by the roller 296 which, as above described, through the abutment screw 302, forces the bell crank 271 to the left, decreasing the length of reciprocations given the pouncing tool. The effect of the highest portion of the earn 304 may be regulated by the setting of the abutment screw 302. To aid in the setting of the cam 30st so that the roller298 will contact the highest portion thereof, atthe proper time, a pointer 313 is secured to the adjustable casting 306 cooperating with an index on the frame arm 52.

When the square of the hat being operated upon is very sharp, it may be found desirable to decrease the pressure of the pouncing tool against the hat, as well as to decrease the length of reciprocations of the pouncing tool as it passes over these portions. Referring to Figure 15, the arm 297 is in the shape of a bell crank, the arm 297 of which extends outwardly beneath the tubular member 57. A. rod 314- connected to thearm 288, at 289, with the rod 290, extends downwardly through a lug pivoted at 315 in'the end of the arm 297 The end of this rod 314 is provided with an adjusting collar 316 and a small spring 317.

When the roller 298 rides up on the cam 304, the arm 297" is swung downwardly and the collar 316 may be adjusted so that the proper engagement with the spring 317 takes place 0 lift the pouncing tool entirely or decrease its bearing pressure the desired amount.

The oiling of the oscillating mechanism comprising the rocker arm 2&5 and its controlling parts is accomplished preferably through. two oil cups 380 and 381, as shown in the interior of the sleeve 241 which is provided with a groove 384 at its left-hand end into which the oil is thrown by centrifugal force and from which it is led through passages 385 to the ball bearing 2 13. Oil which works outwardly into the pulley 238 is thrown tool passes over the sharpest.

The oil cup 381 communicates with a through passages 386 and the surplus oil is caught in an oil guard 387 formed in the cast.- mg 306. The bottom of this oil guarcl 387 is provided with openings through which the surplus oil drains into a cup 388, shown in Figure 15. From this cup 388, the surplus oil is led through a pipe 389, shown in Figure 1, toward the rear of the machine and into the gear box 23%. The oscillating mechanism is thus dependably lubricated and surplus oil which may workout is disposed of to prevent its being thrown about by the moving parts.

Referring to Figure 14, the connecting rod 267 which, as above described, transmits the oscillations of the oscillating arm 2 18 tothe pouncing tool, is loosely threaded at its end into a collar 318. Threaded also upon the connecting rod 267 area pair of lock nuts 319 between which and the collar 318 is in.- terposed a compression snring 320. This connection permits the connecting rod 267 to turn slightly at its threaded connections to relieve strain thereon. The collar318 has a forked end. 321 through which loosely passes a pin 322 upon which is loosely mounted a lug 323 which has a hub 32% loosely mounted through a bushing 325 upon a vertical pin 326. This pin 326 through ball bearings, as shown inFigure 2, issupported in an arm 327 which is inturn mounted through ball bearings on'a vertical stud 328 carried by the adjustable supporting arm 63. The

upper end of the pin 326 forms a bearing 329.

which supports a pin 330 connected with. the left-hand end of the frame 331 of the pouncing tool. The right-hand end of the frame 331, as shown in Figure 3, has a pin similar.

to the pin 330 supported in a bearing 332. This bearing 332 is formed on the upper end of pin similar to the pin 326, the pin being 333, and driven by the connecting rod 267 The pouncing from the oscillating arm 248. tool is further free to pivot in its bearings 329 and 332 so that its surface may properly align itself to the surface of the hat upon which it is working, and it is found desirable to employ a spring 335 to swing the top side of the pouncing tool over slightly so that it may properly work close to the brim of the hat. Friction washers 332 of felt or the like interposed between a clamping collar 332 and the bearing 332, serve to steady the swinging movement of the tool in its bears mgs, a p 7 Turning now to Figure 16, which is a view of the side of the pouncing tool looking up ward-lytoward the same, relative to its position shown in Figure 1,.thereis shown an im proved and simplified form of mounting of the pouncing tool. At the right-hand side of the pouncing tool, as viewed in this fig ure, is adjustably secured to the tubular mem ber 62 a collar 336 to which is pivoted by a pin 337 an arm 338. At the left-hand side of the pouncing tool is secured to the tubular member 62 a similar collar 336, not shown, to which is similarly pivoted an arm 339. The ends of the arms 338 and 339 have forked ends 338 and 339 which are respectively pivoted to bearings 340 and 341. These bearings 340 and 341 support pins as 342 projecting from the sides of the pouncing tool frame 331. The connecting rod 267 which imparts the reciprocations to the pouncing tool from the oscillating arm 248, is connected to the bearing 340 by a universal joint as a balland socket connection 343. It will be seen that the pouncing tool is free to reciproate under the action of the connecting rod 267 being carried by the pivoted supporting arms 338 and 339 and thatthis mounting is less complicated requiring fewer parts than that previously described.

The pouncing tool comprises a yielding p ad having a covering of a suitable pouncing material, such as a suitable grade of sand paper. The body of the pad preferably comprises a yielding member 344 preferably of felt .or similar material secured at its ends, as shown in Figure 18, by clamps 345 and clamping bolts'346. Preferably the pad 344 is'supported at its central portion by a coil spring 347 stretched between the clamps 345 at either side.

The sand-paper may be applied to the surface of the pad 344 in any.suitable'manner,

\ surface of the pad 344.

the roll may be turned by hand.

but preferably it is fed across'the surface of the pad in a continuous strip during the operation of the pouncing tool. Referring to Figure 18, there is shown a roll 348 supported upon a pin 349, upon which roll the strip of sand-paper 350- is wound after traversing the The supply roll of sand-paper is supported upon a pin 351, shown in Figure 16, and from this roll the strip passes over a guide roller across the surface of the pad 344 and over a guide roller 352 to the receiving roll 348. This receiving roll 348 has a suitable hub 353 projecting through the frame 331, which hub is shaped to coact with a key by means of which A spring; pressed dog 354 coacting with a ratchet prevents backward rotation of the roll 348. This receiving roll 348 is also driven by automatic means, which will now be described, to maintain a constant feed of the sand-paper strip across the pad surface during operation of the pouncing tool.

Secured between the two side walls 331 of the frame of the pouncing tool is a stationary shaft 356 having a central circular hub 356. Freely mounted upon the shaft 356 is a collar 357 which has a part 357 fianging over the hub'356. A sleeve 358 is loosely mounted upon the shaft 356 and has a hub 358 flanging over the part 357 of the rotatable collar 357. Secured to the collar 357 is a gear 359 in mesh with a gear 360 which is in turn fixed upon a shaft 361. The shaft 361 carries a worm 362 which meshes with a worm gear 363 carried upon the shaft 349 which supports the sand-paper receiving roll 348. Thus rotation of the collar 357 upon the shaft 356 turns the worm gear 363 and rotates the roll 348.

Resting in a tapered groove 364 in the part 357" is a spring pressed ball or roller 365 which is adapted to wedge between the part 357 and the flange 358 of the rotatable sleeve 358, thus permitting rotation of the sleeve 358 in a clockwise direction, as viewed in Figure 1.8, to rotate the collar 357, but preventing such drive in the reverse direction. I Inserted in a second tapered groove 366 of the part 357 is a second spring pressed ball 367 which Wedges between the part 357 the surface of the stationary hub 356, thus restrain'ng the collar 357 from rotation in a counter clockwise direction. Thus a rotation back and forth of the sleeve 358 upon the shaft 356, transmits a unidirectional clockwise rotation to the collar 357 and the gear 359, turning the shaft 349 to wind the sand-paper strip upon the roll 348.

Freely mounted upon the outside of the sleeve 358 is the hub 368 of a weighted arm 369. An abutment 370 secured to the rotatable sleeve 358 enters a hole in the arm 369, which hole, as shown in Figure 17, is preferably a little larger than the head of the abutment screw. As the pouncing tool rap idly reciprocates in operating upon the hat, as above described, the weighted arm 369 through inertia oscillates, about the shaft 356 between two abutments 371 and 272.

This oscillating movement of the arm 369 is imparted to the sleeve 358 and its flange 358 through en agement and impact with the abutment screw 37 O and this, through the friction ball drive just described, drives the sand-paper roll 348 in one direction drawing the sand-paper strip 350 across the surface of the pad 344. The weighted arm 369 preferably provided with cushions 37 3 and 374 which strike the abutments 371 and 372 respectively.

The abutment 371 is fixed and the abutment 372 is adjustably mounted through a screw 375 from an arm 376. This arm 37 6, as shown in Figure 17, is loosely mounted upon the hub 368 and terminates in an arm 377. It will be seen that the amount of feed of the sand-paper strip is governed by the amount of movement of the weighted arm 369 which is in turn governed by the position of the abutment 372. The amount of feed is therefore varied by ad ust1ng the position Inn

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