US1460678A - Machine for sawing lasts - Google Patents

Description

July 3, 1-923. 1,460,678

T. W. M NICHOL MACHINE FOR SAWING LASTS Filed July 26. 1920 5 Sheets-Sheet l liwenlor: I'iwodore WMJVe'chol,

July 3, 1923. 1,460,678

T. W. M NICHOL MACHINE FOR SAWING LASTS Filed July 26, 1920 3 SheetsSheet 2 limvenkor: Theodore WMichol,

by ,Qhzz/L/ Jul 3, 1923. 1,460,678 T. W. MQNICHOL MACHINE FOR SAWING LASTS Filed July 26. 1920 3 Sheets-Sheet 5 3a 6'6 6'? f a '"5 I l Auuuuuuuuuuunuuunnnuunu lzwcnior: Theodore WMcNisiwl,

Patented July 3, 1923.

ENETED (STATES sarsn'r caries.

MACHINE FOR SAWING LASTS.

, Application filed July 26, 1920. Serial No. 398,935.

To all wiwmit may concern Be it known that I, Tnsononn \VALTnn McNrcnoL, a citizen of the United States t America, and a resident of Swampscott, in

the county of Essex and Commonwealth of lviassachusetts, have invented certain new.

and useful Improvements in Machines for Sawing Lasts, of which the following is a specification.

This invention relates to machines for ticular object of the present invention is to provide an attachment for circular saw machines by which a V-shaped notch may be cut in the toe end of a last preparatory to the reshaping of the last to conform to modern styles.

The invention consists in slid-ably mounting on a sawing machine a frame having pivoted thereto a work-supporting member provided with means for limiting its movement in either direction about its pivot. The invention consists further in providing said pivoted member with a plurality of ad ustable devices for supporting the last or ot er work whereby said 'work may be BOSliLlOIlQCl on said member at any desired angle and inclination relatively thereto.

The invention consists also in certain novel features of construction and arrangement of parts which will be understood readily by reference to the descripgtion of the drawings and to the claims to e hereinaiter given. I

For the purpose of illustrating the invention, one preferred form is illustrated in the drawings, this form havin beenfound to give satisfactory and relizihle results, although it is to be understood that the various instrumentalities of which the invention consists can be variously arranged and organized, and that the invention is not limited to the recise arrangement and organization of t e instrumentalities as. herein shown and described except as required by the scope of the appended claims.

()f the drawings:

Figure 1 represents a perspective view of an apparatus embodying'the principles of the present invention, the same being shown mounted upon a circular sawingmachine of usual construction.

Figure 2 represents a longitudinal section of the same, showing in elevation the back of'the pivoted work-supporting member and the means for actuating the adjustable devices for positioning said work upon 'said member.

Figure 3 represents a section on line 3, 3, on Fig. 2.

Figure 4 represents a vertical section on line 4, 4, on Fig. 2 showing the work-supporting member in its rearmost position.

Figure 5 represents an elevation of the device showing'the work-supporting member in its forward position.

Figure (3 represents an elevation. of a last to be operated upon.

Figure 7 represents an elevation of the same after the first out has been made therein, and

Figure 8 represents an elevation of the same after the second and final out has been made therein.

Similar characters indicate like arts throughout the several figures of the (iiawings. v

in the drawings, 10 is the top of a sawing machine provided with a revoluble circular saw 11, said machine being of any well-known construction.

This top 10 is provided with rooves 12 parallel. with the side faces of t e saw 11 and on opposite sides thereof.

Into these grooves 12 project guide ribs 13 or similar members secured to the under side of a reciprocatory frame 14.

On the frame 14. are secured brackets 15 and 16 provided with alined bearings for the trunnions 17 formed upon plates 18 secured to the opposite ends of a tilting member 19 having an upwardly extending handle 20.

The lower centralportion oi the member 19 is cut away as indicated at 21 thereby forming a depression, lengthwise of whicextends a rod 22 the ends of which project through the downwardly extending ears 23 of the member 19 and the plates 18 andhave positioning nuts 24: threaded to the projecting portions thereof.

In front of said rod 22 is a revoluble shaft 25 havingright andleft hand threads 26 extending through fingers 27, the forward ends of which are provided with pointedpins 28 adapted to engage the work 29 to be sawed.

In the drawingsthis work. is shown as a last as represented in elevation in Fig. 6. The rear ends of the fingers 27 are provided with alined cylin rical openings through which the rod 22 extends.

One end of said shaft 25 is provided with.

a hand wheel 31 by which said shaft may be rotated to move the fingers 27 toward and from each other.

The front face of the member 19 has also secured thereto, the angle irons 32 having a plurality of openings 33, either of which is adapted to receive the threaded projection 34 extending forwardly from the member 19 and provided with the clamping nut 35 This construction provides a means whereby the angle irons 32 may be adjusted toward and from each other.

The outwardly extending parallel ears of said-angle irons 32 are also provided with a plurality of threaded holes 36 in either of which is adapted to be mounted a revoluble threaded pin 37 the inner end of which is preferably pointed and adapted to engage with the sides of the last 29 or other work to be operated upon.

To the front face of the member 19 is also secured a. plate 38 the lower end of which is inclined downwardly and rearwardlyas indicated at 40.

The plate 38 has a plurality of threaded openings 39 therein either of which is adapted to receive the revoluble positioning bolt 41 extending through the member 19 and provided at its rear end with turning means The upper hole 39 is used for long lasts and the lowerhole 39 for short lasts, the purpose of said bolt being to retain the last 29 or other work at the desired inclination to the front face of the member 19. the'front end of'the bolt 41 bearing against the rear face of the last and being adplsted until the proper inclination is attained.

The inclined portion of the plate 38 is provided with two threaded holes in which are revolubly mounted the threaded positioning pins 43 extending through the member 19 and having turning means 44 on the rear end thereof. 1

The forward ends of these positioning pins 43 bear against the rear of the last 29 on opposite sides of the. center thereof and by proper adjustment thereof the work 29 may be tilted to cause the work to be presented to-the saw in proper position.

The saw machine frame has adjustably mounted thereon the gageplate 45 adapted last 29 so thatthe depth of cut therein, when the last is presented to the saw, may be accurately determined.

By means of these different positioning devices an irregular body such as a last 29 may be mounted on the member 19 at any desired angle and inclination and rigidly held thereon while being subjected to the rapidly rotating saw 11.

In the upper end of the frame 19 is a slot in which is positioned an eye 51 of a rearwardly extending threaded rod 52, a pin 53 mounted in the frame 19 extending through said eye 51 and forming a pivot therefor.

The rear end of the rod 52 extends through a slot 54 in the upper end of a post projecting upwardly from the frame 14.

On opposite sides of the post 55 said rod 52 has adjustably mounted thereon the nuts 56 and 57 said nuts being so positioned on said rod that when the nuts 57 engage the front of post 55 the rear movement of the member 19 is determined as shown in Figs. 1 and 4 of the drawings, while the nuts 56 will determine the forward position of said member as shown in Fig. 5.

In the operation of the machine, the last 29 is located properly on the member 19 when the latter is in the position shown in Fig. 4 with the toe thereof touching the gage plate 45.

The entire frame 14 with the parts thereon is then moved transversely of the sawing machine 10 and as the saw 11 moves through the toe of the last 29 the saw cut 58 will be made as indicated in Fig. 7 of the drawings. 1

The frame 14 will then be returned to its normal position and the operator will grasp the handle 20 and move the member 19 into its forward :position as in Fig. 5 and the frame 14 will again be moved transversely of the machine 10 and a second cut will be made in the toe of the last 29' at an acute angle to'the cut 58 leaving the toe of the last 29 with a \I-shaped notch 59 extending transversely thereof.

The machine is particularly designed for making this V-shaped notch 59 in the toes of lasts preparatory to remodelling the same to ive them shapes in accordance with modiern styles. utilizing the bodies of old "lasts or lasts of obsolete styles all as fully described in another application of mine for lasts and method of making the same and of even date herewith.

It is believed that the operation and many advantages of the invention will be fully understood without further description.

Having thus described my invention, I claim 1. The combination with a circular saw and rotating means therefor; a--:work support comprising a slidable frame movable in a path parallel with the sides of said saw last whereby the last may be adjusted to various horizontal and vertical angles. j

2. The combination with a circular saw and rotating means therefor; a work support comprising a slidable frame having an opening through which the upper end of the saw extends; a fiat-faced member pivoted to said frame adjacent the opposite ends of said openin substantially in alinement with the sides of said saw and provided with an upwardly projecting'handle by which said member may be moved freely both about the pivot and in a path parallel to the sides of said saw; and means on the front face of said member for clamping a last in position i to be presented to said saw during the movement of said carriage.

3. The combination with a circular saw and rotating meanstherefor; a work support comprising a slidable frame having an opening through which the upper end of the saw extends; a fiat-faced member pivoted to said frame adjacent the opposite ends of said opening substantially in alinement with the sides of said saw and provided with an upwardly projecting handle by which said member may be moved freely both about its pivot and in a path parallel to the sides of said saw; means on the front face of said member for clamping a last in position to be presented to said saw during the movement of said carriage; a post in the-rear of said pivoted member; and means movable with said member coacting with said post for limiting the movement of said member in either direction about its pivot.

4. The combination with a circular saw and rotating means therefor, a work support comprising a slidable frame movable in a path parallel with the sides ofsaidsaw and aving an opening through whiehthe upper part of the saw extends; a member pivoted to said slidable frame adjacent the opposite ends of said opening substantially in alinement with the sides of said saw and provided with a handle by which said member may be moved freel about its pivot and said frame reciprocate work-holding devices'extending outwardly from the front face of said member and carried thereby; and adjustable stop members movable with said member for limiting the movement of said member about its pivot in either direction. v

5. The combination with a circular saw and rotating means therefor, a work support comprising a. slidable frame movable in a path parallel with the sides of said saw and having. an opening through which the upper part of the saw extends; a memberpivoted to said slidable frame adjacent the opposite ends ofsaid opening substantially in alinement with the sides of said saw and provided with a handle by which said member may be moved freely about its ivot and said frame reciprocated; work-ho ding de vices extending outwardly from the front face of said member and carried thereby: a vertical ost on said frame; a threaded rod pivoted to said member and extending through a slot in said post; and nuts on said rod on opposite sides of said post and adjustable lengthwise of said rod.

6. The combination with a circular saw and rotating means therefor; a work support comprising a slidable frame-moving in a path parallel with the sides of said saw and having an opening through which the upper part of the saw extends: a fiat-faced member pivoted to said frame adjacent the opposite ends of said opening and substantially in alinement with the sides of said saw and provided with an upwardly prbjecting handle by which said member may be moved freely both about its pivot and in a path parallel to the sides of said saw: a post in the rear of said member; means movable with said member coacting with said post for limiting the movement of said member in either direction about its pivot; and a plurality of devices carried by said member for holding a last in position to be presented to said saw during the movement of said carriage, said devices coacting with opposite sides of the last and in the rear thereof.

7. The combination with a circular saw and rotating means therefor, a Work support comprising a slidable frame movable in a path parallel with the sides of said saw and having an opening through which the upper part of the saw extends: a member pivoted to said slidable frame adjacent the opposite ends of said opening substantially in alinement with the sides of said saw and provided with a handle by which said member may be moved freely about its pivot and said frame reciprocated; means for limiting the movement of said member in either direction about said pivot; ears extending from the front face of said member; workengaging members insaid ears and adjustable toward and from each other; a rod extending lengthwise of the bottom of said member; a revoluble shaft carried vby said member parallel with said rod and having.

right and left hand-threads; and work-engaging fingers movable len thwise of said rod and shaft and adjusta letoward and from each other by the rotation of said shaft. v

8. The combination with a circular saw and-rotating means therefor, a work support comprising a slidable frame movable in a path parallel with the sides of said saw and having an opening through which the upper part of the saw extends; a member pivoted to said slidable frame adjacent the opposite the movement of said member in either di-v rection about said pivot; ears extending from the front face of said member; workengaging members in said ears and adjust able toward and from each other; a rod extending lengthwise of the bottom of said inember; a revoluble shaft carried by said member parallel with said rod and having right and left hand threads; work-engaging fingers movable lengthwise of said rod and shaft and adjustable toward and from'each other by the rotation of said shaft; and an adjustable back stop having a work-engaging end about which the work may be tilted laterally.

9. The combination with a circular saw and rotating means therefor, a work. support comprising a slidable frame movable in a path parallel with the sides of said saw and having an opening through which the upper part of the saw extends; a member pivoted to said slidable frame adjacent the opposite ends of said opening substantially in alinement with the sides of said saw and provided .with a handle by which said member maybe moved freely about its pivot and said frame reciprocated; means for limiting the movement of said member in either direction about said pivot; a plurality of alined work-supporting pins carried by said member and positioned on opposite sides of the work; and means for adjusting the work about the axis of said pins. v

10. The combination with a circular saw and rotating means therefor, a work support comprising a slidahle frame movable in a path parallel with the sides of said saw and having an opening through which the upper part of the saw extends; a member pivoted to said slidable frame adjacent the opposite ends of said opening substantially in alinement with the sides of said saw and provided with means whereby said member may be moved freely about its pivot and said frame reciprocated; means for limiting rea ers the movement of said member-in either direction about said pivot; ears extending from the front face of said member; workengaging members in said ears and adjustable toward and from each other; a rod extending lengthwise of th bottom of saidparallel threaded rods adjustably mounted in said member and adapted to bear against the rear face of the work on opposite sides of its center.

11. The combination with a frame carrying a revoluble circular saw, a work support comprising a slidable frame and a work-supporting frame pivoted substantially in alinement with the side faces of said saw and adapted to be moved freely about its pivot and held in adjusted position by the operator during the sawing operation; a plurality of members on the latter frame for adjusting the work at various angles and inclinations relatively thereto; means for limiting the movement of said work-supporting frame in opposite directions about its ivot; and means formoving one of said rames relatively to the other whereby in two successive operations a V-shaped notch may be cut into said work.

12. The combination with a frame carrying a revoluble circular saw, a work support comprising a work-supporting member; a reciprocating frame having an opening through which the upper part of the saw extends and to which said work-supporting member is pivoted substantially in alinement with the side faces of said saw; a plurality of members on said work-supporting member for adjusting the work at various angles and inclinations relatively thereto; means for limiting the movement of said work-supporting member in opposite directions about its pivot; and a single means for moving the work-supporting member about its pivot and reciprocating the frame to which it is pivoted in a path parallel with the sides of the saw.

Signed by me at 746-7 Old South Bldg,

Boston, Mass, this 24th day of July, 1920.

THEODORE W. MCNICHOL.

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