US1678792A

US1678792A - Machine for turning wood heels

Info

Publication number: US1678792A
Application number: US628200A
Authority: US
Inventors: Wesley J Shaw
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1923-03-28
Filing date: 1923-03-28
Publication date: 1928-07-31
Anticipated expiration: 1945-07-31

Description

July 31, 1928. 1,678,792

w. J. SHAW MACHINE FOR TURNING WOOD HEELS Fi1e dMar h28, 1925 2 Slwets-Sheet 1 July 31, 1928.

W. J. SHAW MACHINE FOR TURNING WOOD HEELS WWII? 1925 2 Sheets-Sheet ,Z QL

Fig- 7 1 line 5-5 of F191, 1, looking in tne .lnl 31, 1228.

stares WESLEY J. SHAW, 0F HAVEPiI-IILL, IVIASSACHUSETTS, ASSIGNOR, ."BY MENE ASSIGN-. MENTS, TO 'UJEIITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY,

A CORPORATION OF NEW JERSEY.

I I 1,678,792 PATENT OFFICE.

MAGHINE FOR TURNING WOOD HEELS.

Application filed. March 28, 1923. Serial No. 628,200.

The presentinvention, though having fea tures of general applies. ion, is more particularly related to machines for-turning wood heels.

Such machines comprise a wood-heel-block jack that is adapted to swing along a curved track about a fcrmedrotary cutter to present'diiferent portions of the heel blank to the cutter. The shape of the cutter determines to a large extent the shape of the lieelz but there are also other shape-determining factors, such as the inclination of the curved track, which is therefore made adjustable. To prevent unnecessary vibrations,which would destroy the smoothness of the surface of the resu heel,the curved track should be mounted as rigidly as possible upon the framework of the machine. The necessity for ad usting the in clination of the track renders it dificult to attain this desired degree of rigidity.

r 1 chief object of the present invention is to improve upon machines of the above-described character, to the end that a. ready adjustment of the track may be provided, and the track clamped as rigidlyas before the adjustment. Other objects will appear hereinafter.

In the drawings, Fig. 1 is a side elevation, upon a reduced scale, of a wood-heel-turning machine constructed according to a preferred embodiment of the present invention; Fig. 2 isan enlarged section taken upon the line 22 of Fig. 5, looking in the direction of the arrows; Fig. 3 is a View of a detail, shown upon a larger scale than Fig. 1; F1g. 4 is a View similar to Fig. 3 ofa modification; Fig. 5 is a plan view corresponding to shown partly in section upon the a direction of the arrows; Fig. 6 is a fragmentary front elevation, upon a larger scale than 1 and 5; Figs. 7 and 8 are Views similar to Fig. 3 of further modifications; and Fig. 9

is an elevation corresponding to Fig. 8.

The machine frame 18 carries in suitable bearings two

vertical shafts

19, 21 at the upper ends of which are mounted cutters 10 and 12, respectively. The frame 18 also comprises two brackets 39 and which are vertically adjustable by means of

screws

41 and 43; and 42 respectively. The lowerbracket 39 carries a so-called lower cam track 34, and the upper bracket 40 carries an upper cam track 14, the uses of which will be described. 1

Supported on the frame 18 between the

shafts

19, 21 is a third shaft 20, on which swings a bracket 24, having a vertical shaft 22 rotatably and slidably mounted in its outer end. The lowerend of this shaft has a roller 32 which runs around the track 34 as the shaft 22 turns, thereby controlling the' jieight of the shaft and the elements carried y 1t. I

Atthe upper end of the shaft 22 is an arm 28, to which is horizontally pivoted at 26 a wood heel block holding jack 8, having jaws 4 and 6 for holding a wood heel blank 2, a handle .16 by means of'which the jack may be swung in a vertical plane about the pivot 26 toward and from the cutter in operation at the time, as will appear, and a roller 25 which rolls around the track 14 regulating the tilt o-f the jack around the pivot 26 as it is swung horizontally by the handle 16 against the cutter. In order to enable the same upper caintrack 14 to be used for difierent styles of heels, the track 14 is pivotally adjustable about points near its rear ends.

The mechanism so far described is well 4 known, and the illustrated machine is operated in a well-known manner, the wood blank being mounted in the jack and the bracket 24 being swung over to one of the cutters with the handle 16 extending laterally to the side of the machine, and then swung toward the operator to shape the heel from the front; to the. center of the back. This operation is then repeated to shape the other side of the heel by presenting it. to the other cutter.

In the illustrated machine, the upper track 14 is mounted on the bracket 40 so as tovbe readilyremovable, and at thesame' time it is so secured to the bracket 40 as to insure against liability of its loosening or edge of the leg 36. As the leg 36 is curved, it is possible to adjust vertically the central portion of the track, to which the leg is socured, while permitting the ends of the track to pivot on the bracket 40, as will be explained. The inclination of the track is thus varied, as desired. The leg 36 is clamped in vertically adjusted position by means of a screw or bolt 46 that is employed to spring the spring arms 38 against the log. t is preferred to etiect the adjustment and to support the weight of the track and of the parts carried thereby .upon the upper end of a vertically adjustable set screw 48. In order to minimize wear of the track, the roller 25 contacts with a steel strip 50 which is rcmovably secured to the track 14 by screws or the like 52.

To provide a positively acting mounting for the rear ends of the track 14,

' inthe preferred construction, shown in F l, 2, 3 and 5, the ends 54 of the track 14 are beveled and fitted between

upstanding ears

58, 59 mounted on the bracket 40. The

' beveled ends of the track rest on the bracket under lugs in the form of pins 56 mounted in the ears and are tightly wedged horizontally into the spaces between the pins and thetop of the bracket. The preferred construction for effecting this result is shown in Figs. 1, 2, ,3 and 5. lviodifications are shown in Figs. 4 and 7. ,In each of these constructions, the pin 56 extends through the outer upstanding ear 58 and into the inner upstanding ear 59, as shown moreparticularly in Fig. 5, and secured in place by a set screw 60 tappewinto one of the ears, with its end 62 engaging in an annular recess 64 provided upon the pin 56. The pin56 thus held against translation, but is permitted to turn. A similar pin 66 :is similarly mounted to turn in the adjacent end otthe track l4, and is held against translation by a set screw 68 theend 72 of I which enters a. similar annular recess 74in the pin 66., Theend of the track is rigidly secured in place against the bracket 40 by drawing these pins56 and .66 together. This drawing together may be effected by means of a belt or similar member, as the bolt 7 6, mounted. in

openings

78 and 80, respectlvely.

of the

pins

56 and 66. As the

pins

56 and 66 turnfreely, they readily ad ust themselves to forces exerted at any angle in any pivotal be t 76. The track 14 is in this manner held very, rigidly against the bracket 40, yet is readily releasable for adjustment purposes, and may be as readily removed and replaced, should occasion require.

According to the modification shown in Fig. 4, the bolt 84 is provided with left and right-hand threads engaging corresponding threads in the openings 78 and of the

pins

56 and 66. Quicker action is thus obtained. V

A still quicker action may be had by means of a cam collar 86 adapted to engage a corresponding cam 88 upon the pin 56, as shown in F ig. 7. In this case, the

openings

78 and 80 are'both unthreaded, and the bolt 76 lies loosely therein. The cam collar 86 is held upon the bolt 7 6 by'a nut 90, or in any other desired manner, and is provided with a handle 92.. Rotating the handle 92v in one or the other direction through a fraction of a revolution will result in wedging the beveled end 54 of the track 14 under the pin 56, or in unwedging the same.

It is not essential to the carrying out of the present invention that the ends 54 of.

the track 14 be beveled, and wedged under the pins 56. A track with unbeveled ends ed to maintain the track against the bracket,

40 must be at a more abrupt-angle with the upper" surface of the bracket than in the constructions of the other figures. The

member 98 corresponding to the bolts 76 and 84 of the other views is therefore shown inclined to the horizontal at a sharper angle. The end 100 of the member v98 is pivoted on the bracket 40. I

A oepending pin 102 in rear of the roller 25, and a dependingpin 104 in rear ofthe roller 32, are adapted to engage the track '14, and the track 34, as the case maybe,

limiting the movement of the jack 8, when drawn back for reloading and. preventing its falling into the cutters. V

To adjust the jaw 6 to. fit different thicknesscs of heel blanks, the upper bolt is loosely mounted in one of the members 4, 8,

In order to prevent vibration in this to permit the member 8 to swing about the 7 lower bolt ll0. The member 8 is held in adjusted position by tighteningthe bolts 110 and by an eccentric 108 which in turn is held in adjusted position by a set screw 106. The position of the eccentric 108 determines a limiting position of the 6, and the. bolts 110 are tightened to secure the jaw in such limiting position.

The'invention is obviously not restricted to the exact embodiments that are herein illustrated and described. Modifications will occur to persons skilled 111 the art, and such are considered to be within the spirit and scope of the present invention. It 1s 1ntended to cover in the present application I all the patcntable novelty that the invention the track relatively to the J.

possesses, and it is desired that such construction be placed upon the appended claims as will effect this purpose.

What is claimed is:

1. A machine of the class described having, in combination, a frame, a cutter, a jack adapted to swing vertically and horizontally about the cutter to present different portions of an article clamped thereby to the cutter, a cam track for controlling the vertical swinging movement of the jack, along which cam track the jack is adapted to swing, removably mounted upon the frame, means whereby the inclination of rame may be adjusted, and means for releasably securing the track to the frame in adjusted position.

2. A machine of the class described, having, in combination, a frame having two lugs spaced therefrom, a cutter, a jack adapted to 7 swing vertically and horizontally about the cutter to present different portions of an article clamp thereby to the cutter, a cam track for controlling the vertical swinging movement of the jack, along which cam track the "aclzis adapted to swing, removably ed upon the frame, means wnereby the inclination-of the track relatively to t e frame may be adjusted, the ends of the track being adapted to be wedged into position between the frame and the lugs, and means forreleasably securing the ends of the track in wedged posit-ion.

A machine of the class described having, in combination, a frame having two pair of upstanding lugs, a cutter, a jack adapted to swing verticall and horizontally about the cutter to present different portions of an article clamped thereby to the cutt r, a cam traclr for controlling the vertical swinging movement'of the jack, along which cam track the jack is adapted to swing, removably mounted upon the frame, means whereby the inclination of the track upon the frame may be adjusted, and means for releasably securing the track to the frame in adjusted position, comprising means for securing the ends of the track each between a pair of the lugs.

i. A machine of the class described comprising in combination, a frame having two pairs of upstanding lugs, pins one of which extends through each pair of lugs, a cutter, a jack adapted to swin vertically and horizontally with relation to the cutter to present different portions of an article carried by the jack to the cutter, a cam-track for controlling the vertical swinging movement of the jack along which cam-track the hori- Zontal swinging movement of the jack takes place, said cam-track being removably mounted upon the frame and being adjustable to vary the inclination of the track relatively to the frame, and the ends of the track being adapted and arranged to be wedged between the frame, the pins and the lugs, an adjustable rod connecting each pin to the track, and means for adjusting the rods to secure the ends of the track releasably in wedged position.

5. A machine as defined in claim a in which the rods are screw-threaded into their corresponding pins, whereby they may be adjusted by screwing the rods into the pins.

(3. A machine as defined in claim t in which the ends of the .rods that are connected to the track are pivoted thereto.

7. A machine as defined in claim 4: in which the rods are provided with leftand right-hand threads, engagingthe said pins and the said corresponding connections to the track respectively.

8. A machine of the class described having. in combination, a frame, a cutter, a jack adapted to swing vertically and hori-. zontally about the cutter to present different portions of an article clamped thereby to the cutter, a cam track for controlling the vertical swinging movement of the jack, along which the jack is adapted to swing,

rcmovably mounted upon the frame, means whereby the inclination of the track relatively. to the frame may be adjusted, 'means for releasably securing the track to the frame in adjusted position comprising two adjust-- able rods each pivoted at its ends to the frame and to an end of the track, and means for adjusting the effective lengths of the rods.

9. A machine of the class described having, in combination, a frame, a cutter, a aek adapted to swing vertically and horizontally about the cutter to present different portions of an article clamped thereby to the cutter, a cam track for controlling the vertical swinging movement of the ack, along which cam track the jack is adapted to swing, removable and pivotally mounted on the frame, and means for securing the track to the frame in pivotally adjusted position comprising a pivoted pin in the frame, a pivoted pin in the track, and a rod engaging the pins.

10. A machine of the class described having, in combination, a frame, acutter, a jack adapted to swing vertically and horizontally about the cutter to present different portions of an article clamped thereby to the cutter, a cam track for controlling the vertical swinging movement of the jack, along which cam track the jack is adapted to swing, removably and pivotally mounted on the frame, and means for securing the track to the frame in pivotally adjusted position com--' prising a pivoted pin in the frame, a pivoted pin in the track, both pins being provided with registering holes, and a tension rod passing through the holes.

11. A machine of the class described having, in combination, a frame, a cutter, a jack adapted to swing vertically and horizontally about the cutter to present difi'erent portions of an article clamped thereby to the cutter, a cam track for controlling the vertical swinging movement of the jack, along which cam track the jack is adapted to swing removably and pivotally mounted on the frame, and means for securing the track to the frame in pivotally adjusted position comprising a pivoted pin in the frame, a horizontal surface located on the frame adjacent to the pin, a second pin pivoted in the track, and means for drawing the pins together to force the end of the track between the firstnamed pin and the surface on the frame.

12. A; machine of the class described having, in combination, a frame, a cutter, a jack adapted to swing vertically and horizontally about the cutter to present different portions of an article clamped thereby to the cutter, a cam track for controlling the vertical swinging movement of the jack, along which cam track the ack is adapted to swing, re movably and pivotally mounted on the frame, and means for securing the track to the frame in pivotally adjusted position comprising a pivoted pin in the frame, a horizontal surface located on the frame adjacent the pin, a second pin pivoted to the track, the pins being provided with registering holes, and a threaded.

rod for drawing the pins together to force the end of the track between the first-named pin and the surface on the frame.v

13. A machine of the class described having, in combination, a rotating cutter, a jack arranged for rotary movement about vertical and horizontal axes simultaneously to carry a wood heel blank-past the cutter, a cam track for tilting the jack about the horizontal axis, and a frame on which the said elements are all mounted, the connecting means between the frame and the track comprising two opposed surfaces on one or said lastnamed members and a surface on the other arranged to lie between the two first-named surfaces in varying angular relations, and

means for wedging the third-named surface tightly between the two first-named surfaces.

142. A machine of the class described having, in combination, a frame having two lugs spaced thereon, a cutter, a jack adapted to swing vertically and horizontally about the cutter to present different portion of an article clamped thereby to the cutter, a cam track for controlling the vertical swinging movement of the ack, along which cam track the jack is adapted to swing, mounted upon the frame, means whereby the inclination of the track relatively to the frame may be adjusted, the ends of the track being adapted to be wedged into position between the frame and the lugs, and means for se cuing the ends of the track in wedged position.

In testimony whereof, I have hereunto subscribed my name this 19th day of March, 1923.

WESLEY asmtw.