US2673014A - Automatic hat block chuck - Google Patents

Description

March 23, 1954 F. R. MARINDIN AUTOMATIC HAT BLOCKY'CHUCK 8 Sheets-Sheet 1 Filed A rii s, 1950 INVENTOR Fredricl: R. Marndzn ATTORNEYS March 23, 1954 F. R. MARlNDlN 2,673,014

AUTOMATIC HAT BLOCK CHUCK Filed April 3, 1950 8 Sheets-Sheet 2 INVENTOR Frederic/E E. Mal'zln'clb'n am, QM

ATTORN EYS Max-ch23, 1954 R MARlNDm 2,673,014

AUTOMATIC HAT BLOCK CHUCK Filed April 5, 1950 8 Sheets-Sheet 5 INVENTCPR r E'ederzlc /n R. Marmolpn ATTORNEY? March 23, 1954 F. R. MARINDIN 7 2,673,014

' I AUTOMATIC HAT BLOCK CHUCK Filed April 3, 1950 8 Sheets-Sheet 4 gamma INVENTOR Frederz/c R. Marin din I r 65% ATTORNEYS March 23, 1954 MARINDIN 2,673,014

AUTOMATIC HAT BLOCK CHUCK Filed April 3, 1950 8 Sheets-Sheet 5 INVENTQR Frederic/o R. Manndbn BY March 23, 19 4 F. R. MARINDIN AUTOMATIC HAT BLOCK cuucx 6 m M mm T W m6 I Q Q 8 Frederick 1i.Marind'in Filed April 3, 1950 ATTORNEYS March 23, 1954 F R, MARINDlN 2,673,014

AUTOMATIC HAT BLOCK CHUCK Filed April 3, 1950 I a Sheets-Sheet 7 INVENTOR ATTORNEYS Marh 23, 1954 Filed April 3, 1950 8 Sheets-Sheet 8 INVENTOR Frederic/4; R Marzlndin BY 64k Pam ATTORNEYS Patented Mar. 23, 1954 AUTOMATIC HAT BLOCK CHUCK Frederick R. Marindin, Newtown, Conn., assignor to Doran Brothers, Incorporated, Danbury,

Conn.

Application April 3, 1950, Serial No. 153,635.

17 Claims.

This invention relates to apparatus for attach ing hat block to a hat processing machinery.

One of the objects of this invention is to provide such block attaching apparatus which will greatly increase the efiiciency of the operators of hat making machinery. Another object is to provide apparatus of the above character for use on hat making machinery which will be simple, practical, and thoroughly durable. Another object is to provide a new and improved hat block chuck. Another object is to provide a hat block chuck of the above character which is so constructed that it will be well able to withstand continuous hard usage. Another object is to provide apparatus of the above character whose manufacture will be economical both from the standpoint of labor and materials used. Another object is to provide apparatus in which the structural elements are so disposed as to attain a high degree of strength without heavy construction. A further object is to provide apparatus of the above character which will permit a maximum number of hat bodies to be operated upon in a minimum amount of time. A still further object is to provide apparatus of the .above character which is automatically operated by the control mechanism of the machine on which it is mounted. Other objects will be in part obvious and in part pointed out hereinafter.

The invention accordingly consists in the features of construction, combinations of elements, and. arrangements of parts as will be exemplified in the structure to be hereinafter described and the scope of the application which will be indicated in the following claims- In the accompanying drawing in which is shown one of the various possible embodiments of this invention,

Figure 1 is a side elevation of a machine having the automatic hat block chuck installed thereon:

Figure 2 is a view on an enlarged scale of a portion of Figure l, the chuck and a portion of the machine being vertically sectioned, the control levers and chuck being in inoperative positions;

Figure 3 is a View substantially similar to Figure 2 with the parts in operative positions;

Figure 4: is a vertical section taken along the line 4- of Figure 3.

Figure 5 is a front elevation on an enlarged scale of the portion of the machine shown in Figure l; I f

Figure 6 is a vertical section on an enlarged scale taken on the line 66 of Figure 2;

Figure 7 is a staggered vertical section on an enlarged scale taken on the line 11 of Figure 2;

Figure 8 is a horizontal, staggered section on an enlarged scale taken on the line 8-8 of Figure 2;

Figure 9 is a vertical section on an enlarged scale taken on the lines 9 9 of Figure 5 showing certain portions of the control mechanism of the machine and chuck;

Figure 10 is an exploded perspective view on an enlarged scale of portions of the control levers and mechanism associated therewith shown in Figure 1; and

Figure 11 is a diagrammatic perspectiveview of the control levers for the chuck and machine and certain parts of the operating mechanism of the automatic chuck. 7

Similar reference characters refer to similar parts throughout the several views of the drawmgs.

As conducive to a clearer understanding of certain features of this invention, it might here be pointed out that in operating hat making machinery on which hat bodies are mounted, on hat blocks, the blocks must be connected to and disconnected from each machine at the beginning and ending of each operation. Heretofore, the mechanism of the chuck which mounts a hat block on a machine has been operated by control mechanism which is separate and distinct from the control mechanism which operates the ma,- chine. Thus, in placing the machine in operation, a hat block heretofore first had to be mounted on the machine by operating the hat block chuck control mechanism and then other mechanism had to be operated to place the machine in operation. At the end of an operation, the machine automatically stopped but the hat block chuck control mechanism had to be again operated in order to release the hat block. Thus, three control operations were required of each operator for each hat block, which was inefiicient and time consuming on the part of the operator and also reduced the number of hat bodies which could be operated on by any given machine in a given amount of time. It is accordingly another object of this invention to provide a hat block chuck which will be controlled by a single lever which also controls the operation of the machine.

Referring now to the drawings, for illustrative purposes the automatic chuck is shown mounted on and operatively connected to the controlling mechanism of ahat pouncing machine. It should be clearly understood however that this chuck is so constructed that it may be used on and connected to the control mechanism of a large number of different types of hat making machines. The pouncing machine shown is of the same general type as that shown and described in Patent No. 2,137,250.

The pouncing machine includes a base I2 (Figure 1) on the upper end of which is mounted a work supporting column M, The automatic chuck, generally indicated at It, is mounted on a shaft 13 (Figures 1 and 2) which is rotatably mounted on column i l by a pair of bearings, one of which is shown at 26. Shaft i8 is driven by a motor 22 (Figure 1) through a pulley and belt assembly positioned within housing 24. When shaft It is driven by a motor 22, it turns a hat block, generally indicated at 26, mounted on the right-hand end of shaft l8 and held in position thereon by the jaws of chuck 16.

Durin operation of the machine, the crown of hat 23 mounted on block 26 is pounced by a pouncing pad, generally indicated at 30. Pouncing pad 66 is mounted on a pouncing pad assembly column, generally indicated at 32, which in turn is pivotally mounted by a stud pin 34 on a support 33 extending outwardly from and secured to base it. This pivotal connection permits the pad 36 to move about hat 28 from the apex of the crown to the brim. Another pivotal connection (not shown) is provided to permit pad 36 to move toward and from hat 28 during each pouncing operation. The vertical pouncing movement of pad 30 is effected through mechanism driven by motor 38. As clearly described in the above-mentioned patent, suitable mechanism is provided for moving the pouncing pad into contact with the apex of hat 28 at the start of an operation, for moving the pad from the apex of the hat to its brim and out to the apex again as pcuncing is effected, and then moving the pad out of contact with the hat to a rest position.

Control lever 34 is freely mounted on shaft 42 and when it is moved in a counterclockwise direction, it acts through arm 46, rod 50 and mercoid switch 48 to place motor 38 in operation, when main switch 62 is closed. Lever 44 also controls the operation of the clutch generally indicated at through arm 46, rod 56 and mechanism associated with arm 56. As is described in Patent No. 2,137,250 the hydraulically powered mechanism which controls the movements of the pouncing pad about and toward and from hat 28 is placed in operation upon actuation of a control valve. In the present machine, the stem 58 (Figure 11) of this control valve is actuated by a pin on an arm 66 on the opposite end of shaft 42 from lever 44. When a main control lever 62 connected to shaft 42 is moved from the position it occupies in Figure 11 to the position it occupies in Figure 3, it turns shaft 42 (Figure 11) to move pin t4 into engagement with valve stem 58. This places in operation the hydraulic mechanism which moves the pouneing pad assembly column (Figure 1) through an operating cycle. At the same time, as will be described hereinafter, lever 62 acts upon lever 44 to move it into operative position, starting pouncing pad motor 38 and actuating clutch 54 so that motor 22 drives hat block 26.

At the end of a cycle of operation suitable mechanism as described in the above patent acts upon rod 66 (Figure 1) to move it to the left. This motion is transmitted through bell crank 66 to rod it to move rod 56 upwardly and thus open clutch 54 and switch 48. As will be described,

fully hereinafter, lever 62 also controls the operation of clutch 16, the paws of the clutch being open when lever 62 is in inoperative position (Figure 2) and gripping the hat block 26 (Figure 3) when lever 62 is in operative position.

In general the clutch consists of a frame or body, generally indicated at 16 (Figures 3 and 8), Which is mounted on shaft Iii. A pair of clutch jaws l2 and 14 are pivotably mounted on frame it and at all times are resiliently urged toward a closed position by a spring assembly generally indicated at 16. A pressure disc, generally indicated at 1.8, is slidably mounted on the exterior of the hub position of frame 16 for longitudinal movement with respect thereto. Pressure disc '53 has a pair of keys 8!! and 82 mounted thereon which act upon arms 12a and 14a of laws '52 and 74 to move the jaws out of engaged position with respect to hat block 26 against the action of spring assembly 16 when the pressure disc "it is moved to the right (Figure 3) by means of a yoke, generally indicated at 84. Yoke St is operatively connected to lever 62 so that when lever 62 is moved into operative position (Figure 2) yoke 8% turns in a counterclockwise direction, permitting spring assembly 16 to move jaws l2 and 74 into clamping position With respect to the cylindrically-shaped center portion of hat block 26. When lever 62 is moved to an inoperative position (Figure 2), yoke 84 acts on pressure disc 18 which acts through its keys and 82 to move jaws l2 and i lto an open position.

In detail, the shaft 42 (Figures 1, 9 and 11) on which levers M and 62 are mounted extends transversely across the machine and is rotatably mounted thereon. An arm 66 is mounted on the right hand end of shaft 42 and has an adjustable in mounted thereon which engages valve stem :58 when the machine is placed in operation. When valve stem 58 is pressed downwardly, it places the hydraulic system which actuates the pouncing pad assembly column 32 (Figure l) in operation. Control lever 62 includes a hub portion 62a. which is connected to shaft 42. Thus, when lever 62 is moved into and out of operative positions (Figures 1 and 3) it turns pin 64 (Figure 11) into and out of engagement with valve stem 58. Level 44 has a hub portion too rotatably mounted upon shaft 42 and is held in position on shaft 4'2 by a collar 815 connected to shaft 42.

As is best shown in Figures 9 and 10, there is a lost motion connection between the hub portions 44a and 62a of levers 44 and 62. This lost motion connection includes a portion 62b which engages a portion 441) on hub 44a as lever 62 is moved into operative position. The lost motion connection permits lever 62 to move a greater distance than lever 44 and thus actuate yoke 64 (Figure 11) through arm 62c and mechanism associated therewith. As described hereinabove, at the end of each cycle of operation, rod tit! is moved upwardly and thus acts through arm it of lever 44- to move lever 44 in a clockwise direction, as viewed in Figure 3.

Arm 62c (Figures 10 and 11) on the hub portion 62a of lever 62 is pivotally connected to a link as by a pivot pin 96. Link 88 (Figures 1 and 11) is pivotally connected by a pivot pin 92 to an arm 94. The hub portion 94a of arm 94 is keyed to a shaft 96 rotatably mounted on a casting I06 secured to work supporting column It by screws Hi2. Shaft 96 extends transversely across the machine. Yoke 84 includes a pair of arms tea and 84b integrally cast on a hub portion 340 which is mounted on and keyed to the right-hand end of shaft 96, as viewed in Figure 11. Arms 84a and 84b of yoke 84 have a pair of rollers I04 and, I06 mounted thereon which engage the left-hand face of pressure disc 18, as viewed in Figure 8.

All of the mechanism of the chuck mounted on shaft I8 is mounted on frame 10. Frame 10 includes a cylindrically shaped portion 10a (Figures 2, 6 and 8) which is mounted on and pinned to shaft I8 by taper pin I08. The remainder 18b of framework 10 extends radially outwardly from the outer end of portion 10:: and its front face is provided with two pairs of knuckles IIO and H2 (Figure aligned with the edges of radial slots H8 and I20. The chuck jaws 12 and 14 extend through slots H8 and I2!) and are pivotally connected by pivot pins H4 and H6 (Fig ures 3 and 5) to knuckles H0 and H2. Slots H8 and I28 also extend longitudinally of the cylindrically shaped portion a- (Figure 2) of frame 10 to form key slots I22 and I24 (Figure 2) The jaw portions 12b and 14b of chuck jaws 12 and 14 (Figure 2) are at all times resiliently urged toward shaft I8 by means of spring assembly 16 (Figures 2 and 6). Spring assembly 16 includes a pair of spring seats, generally indicated at I26 and I28 (Figures 2 and 6). Each spring seat has :a pair of knuckles I30 and I32 (Figure 6) formed thereon to which arms 12c and 140 (Figure 2) are pivotally connected by pivot pins I34 and I 38.

A pair of spring supports I38 and I extend I40 have coil springs I48, I50, I52 and I54 mounted thereon which are under compression between shoulders I38-a and I40a and spring seats I26 and I28. Thus, springs I48, I50, I52 and I54 at all times resiliently press against seats I26 and I 28, thus tending to move spring seats I26 and I28 outwardly away from each other. Referring to Figure 2, it will thus be seen that the action of these springs tends to move the jaw portions 12b and 14b of chuck jaws 12 and 14 toward each other. Because of the particular type of spring assembly used, the chuck jaws grip independently and each will move in until it grips. Actually, there is an independent spring action on eachj aw.

As pointed out hereinabove, chuck jaws 12 and 14 are moved out of gripping position by pressure disc 18 acting through keys 80 and 82. Pressure disc 18 includes a hub portion 18a which isslidably mounted on portion 10a of frame 10 for longitudinal movement with respect thereto. Keys 80 and 82 are secured to hub portion 18a. by screws I56 and I58 and include actuating portions 00a and 82a which extend downwardlyinto slots I22 and I24. Thus, keys 80 and 82 prevent disc 18 from rotating with respect to shaft I8 and engage arms 12a and 14a of chuck jaws 12 and 14 whenever pressure disc 18 is moved to the right, as viewed in Figure 2.

The mechanism of the chuck is covered by a ring-shaped cover I68 (Figures 1 and'2), which has a plurality of bosses I62 (Figure 6) formed thereon.v Screws I84 (Figure 5) extending through frame 10 threaded into holes I66 in bosses I62 and thus secure cover I to frame 10.

As is best shown in Figures 1, 3 and 4, the hat block, which is of the standard type, has an outer surface shaped to fit the size of the hat being worked upon. The 'center' of the hat block is hollowed around a'cylindrioal shapedportion 28a which is covered by a cushion member I88 (Figure 4), which the chuck jaws" and 14 grip when the hat block is mounted on the machine. A hole I10 (Figures 3 and 4) extends into the cylindrically-shaped portion 26a of hat block 26 and i adapted to receive the right-hand end of shaft I8. To prevent block 26 from turning on shaft I8, 2. locating pin I12 (Figures 5 and 8) ismounted on the face of frame 10. The longitudinal axis of this pin is parallel to the longitudinal axis of shaft I8 (Figure 8) and when a hat block is mounted on the machine, this pin is positioned in hole I14 (Figure 4) in block 26. Thus, pin I12 (Figures 5 and 8) prevents rotation of a hat block with respect to frame 10, and thus shaft I8. A pair of cork strips I15 and I16 are mounted upon the face of frame 10 and are so positioned as to provide a resilient seat for the hat block when it is mounted on the chuck.

To move yoke 84 from an operative position (Figure 3) to an inoperative position (Figure 2) and to dampen the recoil of the yoke when it moves from an inoperative position (Figure 2) to an operative position (Figure 3), a cam arm, generally indicated at I18 (Figure 2), is provided. Cam arm I 18 is pivotally mounted on casting I00 by means of pivot pin I 80. The lower end of cam arm I18 is connected to a spring I 82, the other end of which i connected to a pin I84 on casting I00. Spring I82 at all times resiliently urges movement of cam arm I18 in a counterclockwis direction. Arm 94 has a roller I 84 rotatably mounted on its left-hand end, as viewed in Figures 2 and 8, by means of pin 92. As the plane of movement of arm 94 is a parallel to the plane of movement of cam arm I18 (Figur 8), a roller I 84 rides on the upper surface I18a of cam arm I18 as yoke 84 moves into and out'of operative position.

When lever 62 is movin from t e position it occupies in Figure 2 to the position it occupies in Figure 3, roller I84 moves downwardly along the surface I 18a of cam arm I18, causing arm I18 to move in a clockwise direction against the tension of coil spring I82, As the springs on spring assembly 16 (Figures 2 and 6) at thi time are resiliently urging the jaws of the chuck toward a closed position, arms 12a and 14a of jaws 12 and 14 act throughkeys and 82 to move pressure disc 18 to the left'as viewed in Figure 2. When roller I84 reaches the position it occupies in Figure 3, it is positioned behind a shoulder I181; (Figure 2) formed on surface I18a of cam arm I18.

When roller I 84 is moving upwardly along arm I18, arm 94 acts through yoke 84, pressure disc 18, keys 80 and 82, and jaws 12 and 14 to compress the springs in spring assembly 16. To compress the springs in spring assembly 16, the combined leverage action of arms 94 and I 18 is utilized. As pointed out hereinabove, when lever 94 is in the position it occupies in Figure 3, spring I32 is under tension. After roller I84 has moved past shoulder I181), spring I82 moves arm I18 upwardly and thus arm I18 adds its leverage to that of arm 94 to compress the springs in spring assembly 16. It will be noted that the leverage of arm I 18 increases as roller I84 moves upward- 1y thereon, and thus as the force necessary to compress the springs in spring assembly 18 increases, the combined leverage action of'levers I18-and 94 likewise increases a In operation, a hat block-26 having a hat 28 mounted thereon is mounted on the right-hand end or shaft I8. Next,- control lever-62' (Figure 2.) .is moved in .a counterclockwise direction. .As it moves, it acts through ,link 88, arm .94, and shaft '96 (Figures 2 and 11) to move yoke 84 in a counterclockwise direction (Figure 2). As described hereinabove, chuck jaws 12 and M are held in an open position by yoke 84 acting through pressure disc I8, keys 88 and 82, and chuck arms 72a and Ma. The springs in spring assembly 76 (Figure 6) at all times resiliently urge jaws l2 and I4 (Figure 3) toward a closed .position. Thus, when yoke 84 moves in a counterclockwise direction, the springs in spring assembly I6- act through arms 12a and 14a and keys 8!] and 82 to move pressure disc 78 to the left, as viewed in Figure 2. The jaw portion 12?) and 14b (Figure 2) of chuck jaws i2 and I4 move into clamping relationship with respect to the cylindricallyshaped center portion Zea (Figure 4) of h'at block 26. It will be noted that when the chuck jaws I2 and I4 (Figure .3) move into gripping posi-- tion, they move both downwardly toward the axis of shaft I8 and inwardly toward disc I8, because of the positions of pins H4 and. H6. The inward movement of the jaws moves the hat block 26 inwardly and clamps it against cork cushions I15 and I76 (Figure 4). This firmly connects the hat block to the chuck and prevents chattering or vibration of the hat block, which can seriously affect pouncing and other finishing operations.

After the jaws connect the hat block to chuck I6 (Figure 3), further movement of control lever 62 causes the hub portion of lever 52 to engage the portion 440. of lever 415 and move. lever M. in a counterclockwise direction. When lever A is moved in a counterclockwise direction, it acts through switch 48 to complete the circuit to motor 38, which drives the pouncing pad assembly 39. Lever 44 also acts through arm 46, rod

and mechanism connected with arm 5'3 to move clutch 54 into a driving position. Clutch 54 forms the driving connection between motor 22 and the belt assembly positioned within housing it, which drives shaft I8 and thus hat block 25. fter the hat is rotating and pouncing pad 313 is in operation, further movement of lever 42 in a counterclockwise direction causes pin 64 (Figure 11) to engage the valve stem 58, placing in operation the hydraulic mechanism which moves the pouncing pad assembly column 32 into engagement with hat 28 and thence through an operating cycle.

As arm 94 moves from the position it occupies in Figure 4, it acts through cam roller I84 to move cam arm I18 in a clockwise direction (Figure 3), against the tension of coil spring I82. When lever 62 is in operative position, roller 184 is positioned in engagement with a shoulder I18?) on cam arm I18. Because of shoulder I18 and because the longitudinal axis of arm 95 is substantially at right angles to the radial axis of arm I8i], spring I82 is prevented from acting through cam arm I18 to move lever arm 94 in a clockwise direction. Also, cam arm I78 acts through shoulder I'I8b (Figure 2) to hold lever 62 in operative position during-an operating cycle. Thus, it will be notedthat during the first portion of the movement of lever 62, toward operative position, the chuck jaws move into engagement with the cylindrically-shaped portion 2601 (Figure 4) of hat block 26, and during the last portion of its movement it acts through lever 44 and shaft 42 to place the machine in opera- -At the end-of an operating cycle, mechanism iii acts throughrod 65 (Figure 1) and bell crank 68 to move rod-5D upwardly and lever Ml with shaft 42 in a clockwise direction. This releases stem 53 (Figure 11) to close the hydraulic control valve and thus stop reciprocation of the pouncing tool about the axis of pin 34 (Figure 1). It also opens switch 48 and acts through arm 56 to move clutch 5:1 to an open position. Accordingly the machine comes to rest with block 25 still locked thereon. When it is desired to remove the block, lever 44 is moved in a clockwise direction, and its hub portion 44a acts through lost motion connection 442; and 62b (Figure 10) to move the hub portion 52a of lever (32 in a clockwise direction, as viewed in Figure 3. Arm 620 (Figure 10) as it moves upwardly acts through link 88 (Figure 3) to move arm 94 in a clockwise direction. As arm 94 moves upwardly, roller I84 moves out of seat I'I8b (Figure 8) toward pivot pin I86. This permits spring 82 to move arm I18 in a counterclockwise direction, which, as it turns, moves arm 94 upwardly. As arm 94 moves upwardly, it turns shaft st and yoke 84 in a clockwise direction. Yoke 8c acts upon pressure discs '33 to move it from the position it occupies in Figure 3 to the position it occupies in Figure 2. As disc I8 moves outwardly with respect to shaft I3, keys iii! and 82 engage arms Mia and Ida. of chuck jaws 12 and M and moves the jaws outwardly with respectto shaft It. When the jaws move outwardly, they release their grip upon the cylindrically-shaped portion Zea. of hat block 26, so that the hat block may be moved from the machine.

Thus, a practical and eiiicient automatic chuck for a hat finishing machine has been disclosed, the operation of which is controlled by one lever which also controls the operation of the hat finishing machine. Furthermore, it will be seen that the automatic chuck is so constructed and the control lever so connected thereto that the automatic chuck is placed in operative condition before the hat finishing machine starts its operation and remains in operative position throughout the operating cycle of the machine. It will thus be seen that the several objects hereinabove mentioned, as well as many others, have been successfully accomplished.

As many possible embodiments may be made of the above invention, and as many changes might be made in the embodiment above set forth, it is to be understood that all matter hereinabove set forthor shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.

What is claimed is:

1. In an automatic chuck for a hat finishing machine, in combination, a chuck for mounting hat blocks on said machine, a control lever starting and stopping the operation of said machine as said lever is moved into and out of operative position, said chuck including a pair of jaws movable into and out of operative position, means for moving said jaws out operative position, and means for moving said paws into operative position, and means operatively connecting said control lever to said two last-mentioned means, said control lever controlling the operation of said hat finishing machine and said chuck.

2. In a hat finishing machine including a rotatable support for a hat block chuck, in combination, a chuck mounted on said support, said chuck including a pair-of pivotallymounted jaws movable into clamping relationship 'withrespect to a'portion of a hat block, spring means acting iiponsaid jawsformoving saidjaws into closed positionaa membermovable longitudinally of said support acting upon said jaws for moving said jaws'out of operative position, a control lever starting and stopping the operation of said machine as said lever is moved into and out of operative position, means for moving said member longitudinally of said support to open said chuck jaws, and means operatively connecting said lever and said last-mentioned means, movement of said member in one direction opening said chuck jaws and in the other direction controlling the. closing of said jaws, whereby upon movement of said control lever to operative position said chuck jaws close and said machine starts and on movement of said control lever in the opposite direction said machine is stopped.

3. In an automatic chuck for a hat finishing machine, in combination, a shaft mounted on said hat finishing machine, means for rotatably driving said shaft, a chuck mounted on said shaft, said chuck including a pair of jaws movable into and out of operative position with respect to a portion of a hat block, spring means for moving said chuck jaws into operative position, a disc mounted on said shaft, said disc including ahub portion engaging portions of said jaws, means for moving said disc in one direction to open. said chuck jaws, means controlling the movement of said disc in the opposite direction, and means controlling said last-mentioned means including acontrol lever, a yoke member, spring means for moving said member into engagement with said disc, and means operatively connecting said control lever to'said yoke member.

- 4. In an automatic chuck for a hat finishing machine, in combination, a shaft on said machine, means for rotating said shaft, means for mounting a hat block on one end of said shaft, 9. chuck including a face plate and a pair of cooperating gripping elements, the base of said hat block engaging said face plate when said hat block is mounted on said shaft, means mounting said gripping elements on said chuck so that the gripping portions of said gripping elements move inwardly toward the axis of said shaft and rearwardly toward the face of said face plate, whereby said gripping elements draw said hat block against said face plate, and control means for moving said gripping elements into and out of gripping position.

5. In an automatic chuck for a hat finishing machine, in combination, a shaft'mounte'd on said hat finishing machine, means for rotatably driving said shaft, a chuck mounted on said shaft, said chuck including a pair of jaws movable into and out of operative position with respect to a portion of a hat block, spring means for moving said chuck jaws into operative position, a disc mounted on'said shaft, said disc including a hub portion engaging portions of said'jaws, means for moving said'disc in one direction to open said chuck jaws, said spring means acting through said jaws and th hub portion of said disc to move saiddi'sc into the opposite direction to close said jaws, a control lever for starting and stopping said machine as it is moved into and out of operative position, means connected to said leverand acting upon said disc as said lever is moved to move said disc against the action of said spring means to open said jaws and to control movement of said disc in the opposite direction as said jaws are closed bysaid spring means. g;

6. an automatic chuck for a hat finishing machine, in combination, a, shaft on said imachineymeans for:rotating said shaft, means for mounting a hat block on one end of said shaft, a chuck including a face plate and a pair of cooperating gripping elements, the base of said hat block engaging said face plate when said hat block is mounted on said shaft, means mounting said gripping elements on said chuck so that the gripping portions of said gripping elements move inwardly toward the axis of said shaft and rearwardly toward the face of said face plate, whereby said gripping elements draw said hat block against said face plate, a control lever for starting and stopping said machine as said con trol lever is moved into and out of operative position, spring means acting upon said gripping elements for moving them into closed position, means for moving said gripping elements into open position and means connecting said lever to said last mentioned means, said control lever acting through said last mentioned means to control the position of said gripping elements.

7. In apparatus of the character described, in combination, a frame, a shaft rotatably mounted in said frame, means to look a hat block on said shaft, means for supporting a hat processing tool adjacent a hat mounted on said block, means for driving said shaft, a movable controlling arm, mechanism between said first-mentioned means and said controlling arm whose actuation locks a hat block on said shaft when said controlling arm is moved to a first position, and mechanism interposed between said controlling arm and said driving means to actuate said driving means upon movement of said controlling arm beyond said first position whereby a hat block must be securely locked on said shaft before the machine is placed in operation.

8. In apparatus of the character described, in combination, a frame, a shaft rotatably mounted in said frame, means to look a hat block on said shaft, means for supporting a hat processing tool adjacent a hat mounted on said block, means for driving said shaft and moving said tool through a cycle of operation, a movable controlling arm, mechanism between said first-mentioned means and said controlling arm whose actuation locks a hat block on said shaft when said controlling arm is moved to a first position, mechanism'interposed between said controlling arm and said driving means to actuate said driving means upon movement of said controlling arm beyondsaid first position, and mechanism responsive to completion of said cycle of operation for stopping said driving means.

9. In apparatus of the character described,"in combination, a frame, a shaft rotatably mounted in said frame, means including jaws pressed inwardly by springs to lock a hat block on said shaft, slidable means capable upon actuation of separating said jaws against the action of such springs, means for supporting a hat processing tool adjacent a hat mounted on said block, means for driving said shaft, a movable controlling arm, mechanism between said slidable mean and said controlling arm to release said jaws to thereby lock a hat block on said shaft when said con'- trolling arm is moved to a first position, and

mechanism interposed between said controlling. arm and said driving means to actuate said driv-'- shaft, slidable means capable upon actuation of separating saidjaws against the action of such springs, means for supporting. a hat processing tooladjacent a hat mounted on saidblock, means for driving said shaft and moving said tool through a cycle of operation, a movable controlling arm, mechanism between said slidable means and slaid controlling arm to release said-jaws to therebylock a hat block on said shaft when said controlling arm is moved to a first position, mechanism interposed between said controlling arm and said driving means to actuate saiddriving means upon movement of said controlling arm beyond'said first position, and mechanism responsive to completion of said cycle of operation for stopping said last-mentioned means.

11. In apparatus of the character described, in combination, a frame, a shaft rotatably mounted in said frame, means including jaws pressed inwardly by springs to look a hat block on said shaft, slidable means. capable upon actuation of separating said jaws against the action ofsuch springs, means for supporting a hat processing tool adjacent a hat mounted on said block, means for driving said-shaft, a movable controlling arm, a leveragesystem between said slidable means and-said controlling arm to release said jaws and to thereby look a hat block on said shaft when said controlling arm is movedto a first position, andmechanism interposed between said controlling-arm andsaid driving means to actuate said drivingmeans upon movement of saidcontrolling arm beyond said first position.

12; In apparatus of the character described, in

combination, a frame, a shaft rotatably mounted in saidframe, means including jaws pressedinwardly by springs to look a hat block on said shaft, aslidable part capable upon actuation of separating. said jaws against the action of-said springs, means for driving saidshaft, a lever pivotallytmounted on said-frame, a bell crank pivoted to move said slidable part with or against the. action of said springs, means forming a linkage system between said-crank and said lever arm to release said jaws and'lock saidblock on said shaft when said lever is moved-to a first position, and. mechanism interposed between said leverarmandrsaid driving means to actuatsaid driving. meansv upon movement of said-controlling arm.beyond. said first position.

13. In apparatusof the character described, in combination, a frame, a shaft rotatably mounted in saidrframe, means including jaws pressed in-. wardly by springs to lock a hat block on said shaft, a slidable part capable-upon actuation of separating, said jaws against the. action. of such springs, means .for driving. said shaft, a lever piv-.. otally. mounted on saidlframe, abell crank hori-. zontally pivoted. with one arm engaging said slid able. part, a springconnected to the. other armof said. bell crank and anchored to exert tension.

thereon against said first-mentioned springs through said ,slidable part, means forming a link.-

age system between said last-mentionedend of:

said bellcrank and said lever to release said jaws and. tothereby lock a hat. block on saidshaft whensaidlever is moved to a. first position, and

combination, a frame, a shaft rotatably mounted; insaid. frame, means to locka hat block on said shaft, meansfor. supporting a hatprocessing-tool adjacent a hat mounted on said-block, means for driving said shaft, 'amovablecontrollin'g arm, mechanism including a lost motion connection between said controlling arm and said driving means to effect a locking action between a hat block and said shaft when said controlling arm is moved to a first position and to actuate said driving means upon movement of said controlling arm beyond said first position.

15. In apparatus ofthe character described, in combination, a frame, a shaft-rotatably mounted in said frame, means to look a hat block; on'said shaft, means for supporting a hat processing tool adjacent a hat mountedon'said block, means for driving said shaft andmov-ing said tool through a cycle of operation, a movable controlling arm, mechanism including a lost motion connection between said controlling arm and said driving means to effect a locking action between a hat block and saidshaft when said controlling arm is movedtoa first position and to actuate said driving. means. upon movement of said controlling arm beyond said first position, and mechanism responsiveto completion of said cycle of'operation for stopping said driving means, said lost motion connection preventing the unlocking of said hat-block during such stopping action.

16. In apparatusof thecharacter described, in combination, a frame, a-shaft rotatably mounted in said frame, means including jaws pressed inwardly. bysprings to lock a hat block on said shaft, a slidable part capable upon actuation of separating saidjawsagainst the action ofsaid springs, means for drivingsaidshaft, a lever pivotally mounted onsaidframe, a bell crank pivoted to .movesaidslidablepart withor against-the action of saiclsprings, means forming a linkage system betweensaid crank and said-lever arm to release said jaws and lock said-block on said shaft whensaid lever is moved to a first position, and mechanism including a lost motion connection between said lever arm and: saiddriving means to actuate. said driving means upon movement of said controlling. arm beyond said first position.

17. Inapparatus of thecharacter described, in combination, a frame, a shaftrotatably mounted inlsaid1frame, means including jaws pressedin- Wardlyby springsto lock a hat block on said shaft, a slidableparthcapableupon actuationof separating. said jaws against the action of i said springs, means for driving said shaft and-movingsaidtool through .a cycle of operation, a lever pivotally; mounted. on said frame, a bellcrank pivoted. to. move said slidable partwith or againstthe actionofsaid springs, means forming a linkage systembetween saidxcrank and said lever arm to release saidjawsandlock said block on said shaft when saidlever ismovedto afirst position,

mechanism including, a. lost. motion connection between said lever arm and. said driving means to actuate said driving means upon movementof' said controlling. arm. beyond said first. position,

and mechanism responsiveto completionof said cycle of operation for stopping said; driving means, the saidlost motion connection preventing the unlocking of saidihatiblock during such.

Number Name Date 194 4555 Doran Jan. 23,1934 2,105,130 Schultze' Jan. 11-, 1938 2;,1'373250 Schultze -I ..I V. 22;

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