US1733518A

US1733518A - Woodworking machine

Info

Publication number: US1733518A
Authority: US
Inventors: Snover John Franklin
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-03-11
Filing date: 1927-03-11
Publication date: 1929-10-29
Anticipated expiration: 1946-10-29

Description

"' of invention reside in Patented Oct. 29, 1929 QTOEN IRANKLINBN VER, s bsssbsm mw om: ff

woonwoaxmsfmcnmn Application filed March 11,

The invention has forjan object to eflect improvements in portable machines for use in a variety of operations in wood working, and

it is also adapted for use as a permanent installation. It is a particular aim of the invention to provide a novel series of adijustments of a rotary'saw or othertool where 'y it may be used for making various cuts in mitering, as well as provi ing at the same time 10 a machine applicable to sawing, boring, adoing, plowing, stair routing, tenoning, shaping, molding, anel-raising,dove-tailing and other uses, wit expedition and efficiencyf A further aim is to provide a novel coordination of mounting elementsfor the attainment o the 'multiphci of i 2 machine, as em ied. It is also a purpose to present novel structure in ccrtain elements.

Additional objects, advantages and features i thefconstruction, ar-

rangement and combination of parts, as will be understood from the following description and accompanying drawings, wherein Figure 1 is a side elevation of my invention.

Figure 2' is: a similar view'oi the horizontal arm swung toward an observer, andthe motor device in a diflerent' position.

Figure 3 is ahorizontal section of the standard and base of'the cross arm; I

Figure 4 is a fragmentary section of the 1110- tor mounting. f Figure his an inner side view of the car riagebody;- ,2

*Figure'fiis a detailfof the screw release. f Figure? is thev operating crank.

There is illustrated formally a portion of a bench 10, upon which my invention may be mounted, At a suitable distance inwardly from the front of the bench acir'cular base plate 11 is bolted, having a central circular boss 12 thereon smoothly finished, fitting a corresponding smoothly finished recess inthe bottom of an upright or standard 13, s'ubstan ially: U-shaped in cross" sectionbuthaving guide flanges 149st the edges of its open side, extending throughout its length in avertical plane. The body of the upright isofiset so that the flanges 14 lie in a plane closely adjacent the axis of the boss 12; The plate'll imfunctions possible in my ,is set slidably against the 19:1. "aerial mi 17am,

mediately adjacent the boss is smoothlyflnished-ina 'plane'at right angles to the axis of the boss to support the standard thereon revolubly, and a bolt 15 is engaged through the plate 11 and the lower part of the standard, to

hold the latter securely and revolubly upon the plate 11. In the standard 13 and extend ing from closely adj acent the lower end there of to thetop, there is a screw 16 having its lower end revolubly tenoned in a'transverse plate 17 formed integrally between the sides of the standard, the upper end of thescrew being jo'urnalled in a tion 18 of the standard,and formedwith an angular head 19 disposed abovethe standard and adapted to receive a crank by which the screw may be ope I erablyjiormed with threads having a pitch of one-eighth of an 'ineh, that is,eight threadsto the-inchs0 that one turn of the screw will represent an adjustment of a member moved thereby of one-eighth of an inch,

for convenience in figuring positions of cuts in accordance to standard English measurements; 9 f

' Vertically there isa cross arm 21, similar in construction to the standard '13 itself, although it may be made somewhat lighter in weighhif desired,

' the principal difi'erence in the present instance being a modification inthe mounting of a hori zontal screw 22- therein similar tothe screw 16 before mentioned.

mounted upon arectangular plate 23, which flanges 14, and held thereto bymeans of flange plates 24 bolted to the plate 23 at each side and overlappingthe flanges 14, as shownin Figures 3 and 4. The arm 21 is mounted u'ponthe'plate 23 in "a manner similar to the mounting of the standard-on the base 11, exc'ept that the boss 25 is formedon the base of the arm 21 instead ofin the plate 23, the latter being formedwith' a corresponding recess to receive the boss. Also in thepresentinstance,

the bolt 26 has a circular recess in'its hexagon head 27 which is presented outwardly and corresponding top por- 7 adjustable upon the standard 13, 7,

front faces of the rated. "This screw is'pref The cross 1 arm is within the arm 21,"the inner: end of the screw 2 22 being set' revolublyin-this recess, so that thebolt'servesas a; bearingior the screw as i the bolt fixedly against the plate 23 and also avoiding locking of the base of the arm against rotation on the plate 23. I I

The plate 23 is provided with ears 29 projecting into the standard 13 at the upper and lower parts of the plate 23, apertured and interiorly threaded to receive the screw 16, whereby upon rotation of the screw the plate 23 will be moved vertically upward ordownward. The screwfis set I 7 axis of rotation of the standard, so that it clearsthebolt 26 and nut 28. '-Upon the arm 21, there ismounted a motor carriageincluding

parts corresponding tothose

23 and 24.

I In place of the cars 29 on the plate 23, the corresponding plate 30 of the carriage has a hand screw or lever operated screw 31, tenoned in the plate 30, the tenon projecting outwardly and carrying the lever. On the inner part of the screw there is provided'a V a segmental internal s free to reciprocate A motor 35 is provided, having a base 36' nut 32 snugly slidable between ears 33 on the inner side of the plate 30, the nut having worm on the side toward the screw22, so that uponrotation of the screw 31 in one-direction, thenut will be pressed against the screw 22, and thereby rotationof the latter will movethe carriage; and upon reverse rotation of the screw3l, the nut will be drawn out 'ofmesh'with the screw 22, so that-the carriage will then be independently of the screw 22. fittedthereto and secured to'the carriage in the same manner thatthe arm 21 is secured to'the plate 23so that the motor may be rotated on the carriage on an axis at right an gles to both screw 224and shaft 37 of the motor. The shaft 37 may have mounted on one end a suitable rotary saw 40' withany quick-release means, while the other end of the shaft'may be provided with a chuck 41 to carry cutters 42, or other tools asrequired;

If desired, clamp screws may be provided to hold the standard 13 in adjusted position on the basell; another to hold the armagainst rotation on the plate23,- and another to' secure the base 36 of the vmotor fixed on the carriage plate 30. a

The base; 11, the plate 23 andthe corresponding partof the carriage plate 30 preferabl dia t ely adjacentthe edge of the rotating members secured'thereon respectively, and the base of the standard 13,- :the arm 21 and thebase 360i the motor are each formed with graduated'scales 45, which, in conjunc tion withthe pointers justment accurately of on the motor shaft in various :required angles with respect to thezwork; r 1

In use, the devicemay be used in numerous riage to bring the saw into a Y the desired angle to the longitudinal axis of inwardly from the of said trackway; have one or more pointers 424:.IIH1I1B'.

44 will enable the adthe saw or other tool Ways which will readily suggest themselves to those, required to do the kinds of work first outlined herein. One simple manner of use consists in adjusting a timber on the bench 10 on a predetermined line with respect to the base of the standard 12, and thescale and pointer thereon, or with respect to a vertical plane coincident with the axis of the arm 21, then adjusting the motor on its carplane having ,thework, and then lowering the arm by operation of the screw 16 until the desired cut hasbeen made, then raising the arm again and proceeding with other cuts by the necessary change ofposition of the motor on the carriage, or shift of the carriage on the arm, or shifting of the arm 21, or a combination of these adjustments. The arm 21 may be rotated to bringthecarriage 30 into a vertical plane at one side of the arm, and the motor then rotated on the carriage until the saw ispresented at a peculiar desired angle to the vertical or horizontal, the arm 21 lowered until the saw is close to the bench top, and a timber then moved slidably and longitudinally on the bench into engagement with the saw, whereby the timber may be cut with one longitudinal face at a particular desired angle to another face of the piece. Also, the device may be employed as an eflicient and easily operated cross cut and miter saw, as well: as permitting miters to be similarly cut by simple adjustments of the arm centrally or to the right or leftover the bench, releasing the screw-22 and moving the carriage by hand upon the arm 21 while the timbers to be out are simply held upon the bench in the path of the saw. Various operations with other tools may be performedwith such and other adjustments.

I claim: I I r r In a woodworlu'ng machine, the combination of a base; a standard rotatably mounted on said base; a plate vertically slidable on said standard; a tool supporting arm -shaped in cross-section; a trackway formed by-the edges of said arm; flanges extending across the endsof said arm; a pintle bolt on said plate and received through one of said flanges to revolubly mount said arm; a revoluble screw journaled in said bolt and the other fiangeand positionedin the plane a carriage slidably mounted on saidtrackway; means connecting said carriage and saidscrew whereby a motor driven tool rotatably mountedon said carriage. I Intestimony whereof I aifixf my signature. I JOHN FRANKLIN SNOVER.

stationary I said carriage is moved by the revolution of said screw; and