US877894A - Routing-machine. - Google Patents

Description

No. 877,894. W *1 1 7 PATENTE@ JTN;l 28, 1908.

G. 1,1. 'KbLL-hi.

ROUTING MAGHNE.

APPLICATION ULEB JULY m. 190s.

SSEEETS-SHBBT 1.

LWQM

No. 877,894. PATBNTED JAN. 28, 1908. G. L. KBLLBY.

ROUTNG MACHINE.

APPLICATION FILED JULY 23, 1906.

3 SHEETS-SHEBT Z.

iganlegs.'

sierras raf-runt 1on1-rien.

esoneri L. runter, or BUFFALO, NEW YORK, AssIGNOR, BY MEsNE ASSIGNMENTS, (ro srarsNsoN MACHINE COMPANY., orBUrrALO, NEW YORK.

f noU'rrNGLMACBINE.

.Speccation of Letters Patent.

Patented Jan. 28, 1908.

u ccnccrn:

t l, Grenen L. KELLEY, a nited States, residing at Buft i of Erie and State of New 'ed new and useful lm- Aichines, of which lhl my@ non relates more particularly to portable routing 'machines for working 1n wood. The machine forming the subject of the inventici capa-ble of a great variety of uses, such, 'lo instance, as cutting regular and irregular grooves or channels of different di-v l mansion and shapes in the surfaces of boards liurposes, but the machine'is esui ed to cutting the grooves in stair ng. ipo receive the stair risers and treads, and the machine constructed for this purpose will bellcrein described.

The primary object of `the invention is to pnnducc a rciical, eflicient and highly desirahle porniilc routing machine ca ablefof i minor-ed about and used on work enches, 3. where the work can be done to f mitagc, and which can be operated to produce work of various kinds with rap and accuracy by unskilled labor.

. 'olijrxts of the invention are t'o improve routing machines in the particulars hereinafter described and set forth in the claii'us.

A machine embodying the invention comprises i supporting frame or structure adaptlor diiiei ent ed tohe moved about in any direction, and a,

lation to the work changed by shifting the supporting irame, whereby the cutters can be merle to travel 1n the same path or 1n d1f- Vhs, whether parallel with each not/.whereby parallel sided or irregni-rhe diameter of on'e cutter to ap nce between the farbly portable, carryng nu ,-i anv suitable kind for through which the cutters work and. by which il cuts can be made varying iir .opening a.

they 'areguided as the machine is moved about. The pattern plate is adjustable tor enable ,the cuts to be made in the desired location land relation on the work, and the pat tern plate is also preferably providedwith work'. f

In the accompanying drawings, consisting of three sheets: Figure l is a secticnal'elevation of a routing machine embodying the inlvention,` showing portions of the supporting table therefor and the work. Fig. 2 1s a plan `view, on a reduced scale, of the machine table and work, showin the routing machine -in horizontal section. -l ig. 3 is a transverse sectional elevation of the 'machine table in line 3-.3, Fig. 2. Fig. i 1s a fragmentary transverse sectional elevation, on an en- -larged scale, in line 4 4, Fig. 2, showing the means-for adjustinfr the machine table vertically toward and from the work. Fig. 5 is a' plan View, partly in section, of the base frame for the table slown, the cutters in section. Fig. 6 is a longitudinal sectional elevation of the machine table in line 66, Fig. 2. Fig. 7 is a plan view of a pattern Aplate provided with separate guide or gage strips for the cutters. Fig'. 8 1s a fragmen tary section, on an enlarged scale, of the pattern plate in line 8 8, Fig. 7. Figs. 9 and 10 are diagrammatic views, showing different positions of the cutters for producing cuts of different kinds.

Like letters of referencereflerto like parts vv in the several figures.

A, Fig. l, represents the frame of the routing machine. This frame may be of an suitable form and construction but ispre erably in the formof a bell-shaped casi-ng, having ailaring open bottom and .providedv at the upper portionth'ereof with air inletl The machine is intended to be f moved about u' on a sup orting surface or late and the frame is tlerefore provided with roller supports B to insure greater freedom ofv movement of the machine. The roller supportsshown consist of balls confined in ball sockets b at the base of the frame. The frame or casing supports the cutters and their driving motor or mechar/iism and also incloses these parts to protect,` them and guard the operator from injury by contact with the cutters or driven .partsof the machine.

C represents the driven cutters or routing 60 means for clamping or securing 4it on the knives. There are a plurality of these cutters, two being preferably employed in the machine shown in the drawings, journaled t0 rotate about vertical axes and they extend far enough below the bottom ol' the frame of the machine to enter or engage the work arranged below. the same.. These cutters are secured to the lower ends ot vertical shafts c which are journaled in suitable bearings in a yoke or part l) which is inclosed within and l 'l`he cutter supported by the main frame A. shafts are driven'from a conuuon drive shaft E through suitable gear wheels c c a and the drive shaft is also journaled in suitable 5 bearings 1n the yoke or part l) of the frame and constitutes'the armature shalt of an electric motor F of any usual orapproved type supported by and inelosed within the 1y The descrlbed manner of mainframe A. mounting and driving the cutters 1s not ot the essence of the invention and they could 't be mounted in any other suitable way and driven vby-any other suitable motor or driving mechanism. The cutters, however, bear a substantiallylixed or constantrelation to each other and to the machine, but the machine is capable of being moved and turned in any direction, so that the relation of the cutters to the work can be variously changed.

A balance wheel is 'secured to thc upper portion of the armature shaft above the commutator of the motor, in the machine shown, and the spokes q of this wheel are shaped to form fan blades, or fan blades are secured to the balance wheel in any-suitable manner, so that in the rotation thereof a downwardv draft is createdv iu the machine around the motor and the bearings for the same and the cutter shafts. cutters is thus prevented from rising in the casing and collecting on the bearings, and the working parts are kept cool. This wheel can he used or omitted desired.

Theiportable machine above described is used in connection with a portable support, or table upon which the machine rests and is moved about, and thesupport has openings through which the cutters `xtend to the work and guiding surfaces against which parts of the machine bear to direct the cutters asthe mac-bine is moved about on, the Sup ort. ln the machine shown the cutter sha ts are provided above the cutters with loose rollers or collars lll for this purpose and adapted to roll against guide edges surrotmding the openings in the table or pattern plate through whichthe cutters extend.

The machine support or table shown in the drawings, see Figs. 2, 53, 5 aud 6, comprises a base frame l. which is secured to the work or board to be cut and which is adjustable lungiT tudinally thereon, a top or plate K which is adjustable transversely on the base frame, and a pattern plate L which is provided with Dust from the l f the guide openings for the cutters and which is rotatably or angularly adjustable on the top or plate K. The base frame, see Fig. 5, 1s rectangular, having end bars 'i connected by a front. bar It', a rear bar i2, and an intermediate or clamping bar ri. The end bars i are adapted to rest upon the top of the Work OI board to be cut, and their undersides are reeessed or cut away to receive the work or board so that the clamping bar and front bar of the frame will extend down opposite the edges of the work or' board. The recesses of the end bars are wide enough to receive the widest board to be operated upon. A clamp screw i" passes through'a threaded opening in the front bar of the base frame, being provided at its outer end with an operating knob or handle and at its inner end with a clamp hea-d fr to engage the edge of the board or plank. By tightening up the clam'p'screwt'4 the work or board is clamped between the i clamp bar and screw, and the frame is se v curely fixed to and supported by the worker board. lt can thus be secured to the board .I or plank at any desired portion of the length tthereof. The top or pate K rests and is movable transversely, or forwardly and rearwardly upon the end bars of the base frame 'and has end lianges /c depending beside the end bars .of the base frame to guide the plate and hold it'from twisting on the base frame. The pattern or guide plate L is preferably circular and is located and rotatable in a circular opening'lin the top of plate K with its upper surface flush with the upper surface of the top or plate K. 'l`he plate rests at its edge upon a depressed llange L around the opening of the top or plate K and its center t has a thickened or depressed bearingr l2 which rests upon aborizontal bearing bar or portion l of the base frame. This bearing bar or portion is slotted transversely of the frame, see Fig. 5, and a center bolt rm,Figs. .3 and 6, passes throwfh this slot and a center hole in the pattern priate and is provided with a nut m for clam ing the pattern plateto the base frame. libis 'bolt serves to hold both the circular pattern late and the table to i in the position lto whieii they'are adjusted. Witen the nut is loosened the pattern plate can be rotatably adjusted about the bolt to any desired angle, and the table top-.K can be moved transversely on the base frame to lo cate the guideopeuing of'the pattern` plate in work. The nut m for the bolt is preferably seated in a depression in the pattern plate with its top flush with the upper surface of the pattern plate so as not `to form an obstruction and prevent the free movement of the machine over the patte'rn ilate.

l /lhe pattern vlatecan be provided with one or more gui( e slots or openings similarin yshape to the cuts or grooves to be made. l lhe pattern plate shown in the drawings is the required position and relatidn over the` snes@ the guide rollers H on the cutter shafts roll.

These guide edges converge from the outer ends of the legs of the slot toward the angle thereof to produce tapering or wedge-shape grooves in the Stringer, and as shown, they are beveled or undercut, see Fig. l, to hold the cutters down to the work.

The slot N can be locatedin the proper position over the stringer by the required adjustment of the 'table base traine, top and pattern plate, to give any desired length ol.' the tread and riser portions of the grooves and angular-.ity thereof on the stringer. After the pattern plate is adjusted and secured the machine is placed thereon with the eut* ters depending through one end of one leg of the slot and is turned horizontally until the guide rollers bear against the opposite guide edges. After starting the `iiiotor the niacliine is moved along over the pattern plate, being pressed or turned as required to hold the guide rollers firmly against the guide edges. W'hen the angle of' the slot is reached the niacliine is turned so that the cutter shafts will enter the other leg of the slot and is moved along this leg of the slot and the rollers pressed against the guide edges as betere. rl`lie machine being free to turn and shift on the pattern plate the rollers will 'follow the guide edges and cause the cutters to cut in corresponding paths whether the guide edges diverge, as shown in Fig. 2, are parallel, or bear other relation to each other. rlie guide slot N has the usual nosing extension n at.its angle in line with one of its legs, for cutting the nosing grooves, and this extension is 'preferably' lornied in a separate piece n2 de-` tachably secured in the pattern plate and adapted to be replaced by anotherpiece in which the nosiiig extension will be in line with the other leg ot' the slot for routing the grooves in the opposite stringer. Separate nosing pieces n? can be provided for differs ent shaped nosiiigs.. For cutting stringer grooves of diilierent widths interchangeable pattern plates can be provided having guide slots of proper widths, or 'if preferred, the guide Slot can be inade Wide enough for the widest grooves and separate teniplet strips n provided to be secured in the legs of the slot, as shown in Figs. 7 and S, when it is desired to cut narrower grooves. Preferably each leg otl the guide slot isl provided along one edge .'itli a scale n* to indicate the lengths ol the correspondii'ig groove which Will'be cut in ditl'erent positions of the pattern plate, and the circular edge of the pattern plate is provided with graduations 11" or is otherwise provided with a pi'otractor scale to enable the 'pattern plate and guide slot to be set at a desired angle. The table top also provi led at opposite ends with adjust-A able scale bars O for aiding in correctly posi-v tioning the table ,For successive grooves in the Stringer. rilhe scale bars shown are slidable in and out in .grooves C are secured by set scrinvs U2.

Vlhe:support or pattern plate shown in thev drawings is lfor use in grow/ing stair stringers but the machine is not iiniited to this use, and by providing pattern pla-tes with openings and guide edges or faces ol` proper shape it can be employed for periorniing niany difierent kinds o? wo The cutters can he nuide to travel onei id the other and out a path with parallel sides ol" a width equal to the diaineter oi one critter, as indicated in the diagrifn, Fig. il, er ti can be shifted by turning the niacnine on tace, to cui' shapes, as i by providin rent widths and .i -l in lugs, 5 and lt). Thus cutters ot dn'l'erent sizes and.

i kinds, and finding means oi" dill'erciit forms `t variety oi work can the entire table with the pattern plate is adpisted vertically on 'the work, for which pur-` pose a roller l), lfigs. 2 and el, is arranged in the recess or cnt away portion ol cach end bar of the base iranii-f and is iournaled in boxes r which are ad usted verticall f on the .i 7 l end bars oy ad ustine screws o or other e .l means with which the table is provided. The rollers P sun iort the table on the board the table top and.

e supporting siiror i Yorli, and the distance oi the pattern platel troniv the latter :ind consequently the vdepth to which the cutters enter the work can be regulatedas desired, by adjusting the rollers up and down. The rollers l) rest rosswise on the board or work and when the table is unclainped it can be readily rolled along the board to the desir -d position.

The desrribed construction of' the table with the adjusting and securing ineans forv plate or guiding iniwnis lor the cutters are secured to and adjusted relative to the work,

'llie invention l'uiilierniore not liiiiitcd` ln a routing inarliine, the combinationoi a iliiralit f' ol i-.utters drivinur nicans there# i ci for, a support in which said cutters are mounted and which is freely movable with respect to the work to change the relation of said cutters to the Work, and means for `guiding said cutters in the moven'lent of said support, whereby said cutters will cut in paths parallel with each other or bearing' any desired relation to each otherl dependine upon the movements of said support, substantially as set forth.4

2. in' a routing machine, the combination of a plurality of cutters, driving means therefor, and a frame 'in which said cutters are mounted in substantially 'fixed relations to each other and which is freclj,Y movable and rotatable with respect to the work to f hange the relation of the cutters to the work, substanti'a-lly as set forth.

3. In a. routing machine, the combination of a plurality of rotary cutters, means for driving the same, a frame in which said cutters are mounted and from. which they eX- tend downwardly to enter the work, and said fram'e being freely movable to change the relation. of the cutters to the work, and means for guiding said cutters in the movevments of the frame, substantially as set 'forth` 4. In a routing machine, the combination of a plurality of cutters journaled to rotate about vertical axes, driving means therefor, a supporting frame for said. cutters which movable freely and rotatable to change the relation of the cutters to the Work, and guide means for said cutters, substantially as set forth.

5. in a routing machine, the combination of a frame which rests upon and is freely movable on a supporting surface, a plurality of cutters which are mounted in said frame and project below the same to enter the Work, means for driving said cutters, and means for guiding said cutters in the movements of said frame, substantially as set forth. 6. .fn a routing machine, the combination of a supporting frame Which rests upon and is freely movable and rotatable on a supporting surface, a plurality of cutters which are mounted in said frame and project below the same. to enter the Work, and a motor s upported bysaid frame for driving said cutters, the relationA of said cutters to each other heilig substantially constant but their rela tion to the work being changed b v the movements of saidv frame, -s'u-bstantialhY as set forth.

7. ln a routing machine the combination of a supporting frame which rests upon and is freely movable and rotatable on a supportingsurfaee, a plurality of cutters jour naled on said frame to rotate about vertical axes and projecting below said frame to enter the work, a motor supported on said frame for driving said cutters', and means for guiding said cutters, substantially as set forth.

8. in a routing machine, the combination of a. plurality of cutters, a frame in which said cutters are mounted in substantially vfixed relation and which is movable and rotatable to change the relation of the cutters to the work, guide faces, and parts on said machine which travel against said guide faces to direct said cutters as the4 machine is moved with respect to the work, substantially as set forth.

ln a routing machine, the combination of a. plu ality of cutters, a supportingr 'fra-me therefor, means for driving said cutters, and a pattern plate on which said frame is freely movable and which is provided with an opening through which said cutters project to enter the wor-li, said cuttersl being movable in said opening to change their relation to the work, by the movements of said frame, and guide faces on said. pattern plate to direct said cutters, substantially set forth.

1t). in a routing machine, the combination of a supporting frame, a plurality of cutters, shafts therefor journaled in said frame, means for driving said. cutters, a pattern'nlate provided with an opening through which said cutters extend to enter the Work, guide faces on said pattern plate and parts surrounding said cutter shafts which bear against said guide faces to direct said cutters during the movements of said frame over said pattern plate, substantially as set forth. y

il. In a routing machine, the combination of a pattern plate provided 4with an opening, a frame u'hicl'i is freely movable and rotatable on said pattern plate, a plurality of cutters, shafts for said cutters journaled in said frame, means for driving said cutters, rollers on said cutter shafts, and guide faces onv said pattern plate against which said rollers bear to direct said cutters and change their' relation to. the work as the cuttersare moved along in said opening, substantially as set forth.

12. lh'e combination of a routing machine, and a portable support and guide table therefor comprising clan'iping means constructed to be secured to the Work, and a pattern plate which is 'supported by said clam )ing means over the work and is provided wit an unobstructed surfaire on which said machine is supported and freely movable,'with.an opening through which the machine cutters extend to the work, and with means for guiding the cutters, said pattern plate being adjustable in different directions on said clamping means, substantially as set forth.

13, lhe combination with a portable machine support having an unobstructed. machinwsupporting surface and provided with means for securing it over the Work, of a portable machine wh'ich is supported by and is freely movable on said supporting surface and comprises a motor and a cutter driven by said motor and projecting below said supl f porting surface to the Work, and coperating lv Afor securingthe same on the Work, a pattern arts onsaid machine and support for guidmg said cutter in the movements of said machine on said supporting surface, substantially as set forth. j l

14. The combination with' portable machine support adapted to be laced over the work and having an unobstructed machinesu porting surface, and; means at the under.

si e of said support 'for securing lt on the work, oi a portable machine which is supported by and is freely movable on said supporting surface and comprises a motor and a cutter driven by saidv motor and projecting beloyvsaid' supporting surface to the work, andeoperatmg parts on said machine andv support for guiding said cutter inthe movements of said machine on said supporting surface, substantiallyas set forth.

l5. The combination of a routing machine, and a supporting and guide table, therefor comprising a base frame, means for securing the same to the work, a top Which is adjustable horizontally over the Work on said base frame, and a pattern plate which is rotatably adjustable is provided ters of said routing machine, as sot forth.

on'said adjustabletable top ant with a guide opening for the cutsubstantially 16. `The combination of a routing machine,

and a table comprising a base frame, means for securing.' the same to the Work, a top which is adjustable' transversely on saidv hase frame, a pattern plate Whichis 'rotatably a(l-. justable on said top,

substantially as set forth.

17. The combination of a routing machine,

and a single securing dey vice for said top and rotatable pattern plate,.

vof saidl routing machine, an `justing the d .opth of cutpof the cutters7 substantially structed to be placed over the Work, means plate on Which the routing .machine is supported and which is transversely and rotatably adjustable on said base frame and is rovided with a guide opening for the cutters oi said routing machine, and means for adjusting the height oi' the pattern plate over the Work to regulate the depth of cut of th cutters, substantially as set forth.

18. The combination of a ro uting machine7 and a portable table comprising a constructed to be placed over the Work, means for securing the same on the Work, a top which is adjustable transversely on said base frame, a pattern 'plate on Which the routing machine is supported and Which is rotataoly adjustable on said table top and is provided with a guide openin for the cutters means for adsaid base frame vertically to regulate as set forth.- i

. 1.9. T he combination of a routing machine, and a table comprising a base frame, means l lfor securingthe same to the Work', vertically adjustable rollers which rest on the Work and support said base frame, and pattern plate .which is'rotatably and transversely adjustable on said base .trame and is provided with .a guide opening for the cutters of said routing, substantially as set i'orth.

Witness my hand, this-16th day of July,

ieoc. j

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