USRE15837E - Woodworking machine - Google Patents

Description

May 13 1924 Re; 15,837

M. HUTCHINSON WOODWORKI MACHINE Original Filed Jan, 1918 45 Sheets-Sheet '1' g inlml/ ""Liimimm O .Y .AL'n'll-Imlllllllllllll d.

wnlnnumn Vay 13 1924..

M. HUTCHINSON WOODWORKING MACHINE Original Filed'Jan. 5 1918 5 Sheets-Sheet 2 Re. 15,837 M. HUTCHNSON wooljwoRxlNG MACHINE May 13, 1924.-

Original Filed Jan. 5 19718 5 Sheets-Sheet C5 May'la, 1924. Re. 15,837 M. HUTCHINSON f WOODWORKING MACHINE origina; Filed gan. 5. 1918 5 sheets-sheet 4 May 13 1924.

M. HUTCHINSON NOODWORKlNG MACHINE Original Filed Jun. :3 1918 5 ShQQtS-Snc-et Q nucwtolz MJ,

named 'May 13, 1924.

UNITED STATES- PATENT oFFlci-z.

WOODWORKING MACHINE.

Original In. 1,369,744, date'clebmary 22, 1921, YSerial No. 210,470, med January 5, 1918. Application for reissue Med April 3, 1828. Serial No. 549,303.

To all whom it may concer-n.l Be it known that I, MAoKrNTosH HUTCH- INsoN, a subject of the Kin Britain, formerly residing atgforonto, in the Province of Ontario, Canada, and now residing at. Philadel vhia, county of Philadelphia, State of ennsylva-nia, have invented certain ne7 and useful Improvements in W'oodworking Machines; and I do l'declare the followin.- to be a full, clear, and exact description o the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being' had to the accomlpanying drawings, and to the letters and gures of reference marked thereon, which i form a part of this specification.

This invention relates to improvements in sawing machines of the general type disclosed in my U. S. Letters Patent No. 1,014,708, wherein a motor driven saw is supported by an upright post or standard in such manner that it can be adjusted forwardly and rearwardly and positioned in different vertical planes radiating from a common axis in' order that the machine may be applied to mitering, ,cross-.cutting dado-` ing and kindred operations.

The principal objects of the present invention are to enhance the rigidity, compactness and facility of adjustment and operation of a machine of the type referred to; and also to enable the use ofthe saw driving motor for the operation of some device collaterally useful in the particular Work at hand, such for example as a jointer, without the necessity of removing the motor from its support or disturbing its operative relation to the saw.

Vith the above objects in View the invention consists of certain features of structure and combination, involving the ele# ments for supporting the motor and the saw from. the standard or pedestal, and which will beset forth in detail as the description proceeds.

An embodiment of the invention is disclosed in the accompanying drawings,- wherein:

Figure 1 is a of Great.

-tion of a screw shaft.

side perspective view ofy a sawing machine, in which the features of the invention are incorporated;

Figure 2 is a front perspective View of the machine; t

Figure 3 is a side elevation on a somewhat larger scale;

Figure 4 is a plan view;

Fi ure 5 is a detail front elevation showing tie adjusting mechanism for the Work table;

Figure 6 is a. detail view, partly in section and partly in side elevation, showing the mounting of the pivotally adjusted supported bracket for the motor and saw.

Similar characters of reference designate, corresponding parts throughout the several views.

The'support of machine consists eentially of an upright standard orV pedestal 1 suitably stayed at its lower end relatively to the door and for this purpose preferablyl provided with a supporting base 2 of suiiicient Width and cxtent to insure stability.

The stock upon which the saw 'operates is held on a table 4: Whose elevation relative to the saw may be adjusted to regulate the depth of the cut. In the construction shown and preferred the standard 1 is provided with a forwardly, projecting bracket l5 terminating in a cross beam 6 (Fig. 5) which, at its ends, is formed with vertical sleeves ,7 ;I and the table 4 is se,-v enred to a. pair of pillars 8 which are slidably mounted in the respective Vsleeves 7 and arefconnected at!" their lower ends by a cross bar 9. The adjustment of the elevation of the table is effected by the rota- 10 which is threaded through the bar 9 and has a swivel mounting in a suitable bearing formed with or secured to the beam 6. The stem ,10 is operated by a hand Wheel 11, preferably through the agency ofmiter gears 12.

In certain operations it may be found desirable to vary the angle of the Work relatively to the saw and for this purpose the table 4'is pivotally adjustable about a horizontal or transverse axis, being connected by pivot .pins 13 to the upper ends all of the elements of the f Srl v 13 project by the standard 1.

.and for such of the pillars 8. In order- 4to secure the table in any position to which it may be adjusted ,about its pivotal center 13 it is provided witlh Vcurved bars 14, concentricr to said center and having-slots 15.` The bars 14 are engaged by clamp heads 16 which are formed With suitable hand grips and have Shanks passing through the slots 15 and threaded in the pillars 8. When the clamp heads 16 are ba ked off the table` 4 may be freely adjuste into any desired position about its pivotal center; and wihen the adjustmentlias been made said heads are tightened against the bars 14 and are thereby effective to hold the table against displacement. f A

The table is also preferably adjustable, in a direction :tore and aft of themachino purpose said table is provided with runners 4a which are slidably fitteds to bars 14a extending between and secured to the upper ends of each curved bar 14. The pivot stems 13 are fitted centrally in the bars. 14"Jl and the runners 4I^L have longitudinal slots 4"4 through which the stems Said stems are provided with clamp heads 13L which are formed with suitable hand grips and may lie-tightened against the runners 4 to fix the table against sliding movement and in any desired position within its range oi fore and aft adjustment.

For the support of the Ysaw 17 and its transverse shaft 18, as also of the motor 19 for operating the saw, a pair of beams 2O is provided which in turn are supported 'The saw shaft 18 is Journaled in bea-rings 21 having elements which are formed as parts of orsecurcd to a cross head 22. The cross-head 22 is formed ivithy-sockets`23 in which the front ends of the "beams 20 are Ifitted; and said cross head and beams are held relatively rigid by setl screws 24 threaded tlirou h ysaid socket and engaging said beams. Tic

cross head 22 is also provided with a handle Q5 by which the "sa-W may be advanced or retracted relatively to the work.

In order to vary the angle of the saw relatively to the work the beams 20 are supported by a pivotally mounted element and in order that the .saw may be pro jccted or retracted relatively to the work the beams are slidable on their supporting element.- in the direction of their length and are disposed tangentially of the pivot of said element.

The supporting element for the beams LH wonsisl of a horizontal bracket QG -provided with a front pair ofvguide sleeves 2T and a rear pair of guide sleeves 28. The beams are slidablytitted in said sleeves which, in order to facilitate the sliding movement of the beams in either direction are provided with pulleys 29 on which the Y vided with beams rest. said pulleys being preferably mounted with roller bearings. The pulleys are j'ournaled in the bracket at the base of the sleeves, as shown, and thus .relieve the sleeves of some of the strain of the beams. The mbtor 19 is provided with a base 30 which has depending dowel pins 31 engaging in recesses formed in the beams; and the sleeves 27 and 28 are formed along their upper sides with slots 32 which extend from end to end of said sleeves andthrough which the pins 3l may move in connection with the sliding of the beams, said slots thus permitting thel motor to be moved in either direction past the sleeves. lVhen the saw is retracted its rearward movement is limited by the engagement of the cross head 22 or, more strictly, of the sockets 23 of said cross head 27. The sleeves 27 and 28 are somewhat widely spaced and therefore provide support forthe. beams at two distantly located points.v the arrangement thus insuring stability. The relatively wide Separation of the sleeves 27 and 28 is not permitted to interfere'with the compaotness of themachine since an amply sufficient range of projectiouof the saw is provided for with beams of the=usual length by the slotting of the sleeves 2,7 and 28 which enables the motor -to be advanced into a position of immediate adjacency to the front of the machine. Y

The bracketpQG is formed atI a suitable point, preferably between the front sleeves.' 27, with a vertical ably fitted upon a pivot post 34. The post 34 .constitutes the axis about which the saw may be turned to vary its angle relatively to the work.

vIn the preferred construct-ion the post 34 is carried by an upright from the outer end of a horizontalV ever-hanging arm 38 which is rigidly mounted upon the upper end of the standard 1, the post 34 being located at one sido of said standard.

The bracket 26 may be secured in any desired position as indicated bya scale 36 provided upon the i m 38 in concentric relation to thecollar 33. There are certain prescribed positionsin which the saw must be placed for certain opera-tions of fre-` quent.: recurrence; and in order that the bracket 26 mav be quickly adjusted to any of these prescribed positions and positively` secured therein, it is preferred to provide 1n aluga latch pin- 35 which is mounted 35 projecting from thc collar 33 and is engageable, selectively, in recesses 35b formed in the arm '38 along a circle concentric to the collar 33. For holding the bracket 2 in positions intermediatev the prescribed ones as determined b v the location of the 1ecesses 35". the collar 33 is preferably proa. set screw 37 which may be against the front .sleeves` collar 33 which is rotat?vv` tightened against the post 34, thereby to frxctionally'bind said collar against said useful in the particular work at hand. Thus,

a 'ointer 43 'of any suitable chnstruction and illustration merely conventionally in the drawin s is shown as mounted upon a horizontalv racket 44 which is secured to the standard 1, said jointer being located at the side of said standard opposite the table v4 and having its operating` shaft-"45 rovided with a pulley 46. lVhen it` is desired to operate the jointer thebracket 26 is turned about its axis 34, the beams swinging with said bracket to a` position wherein the pulley alines with the pulley 46 at which time the belt 41 is disconnected from the pulley 42 and en. gaged over the pulley 4 By providing 'the overhanging arm 38 for the support ofthe bracket 26 an ad vantage is secured in that, when said bracket is, for some special work, e. g., ripping, positioned at a right angle to its normal position shown in Figure 2 greater space is allowed between the saw and the post, thereby enabling the saw to work on wider boards.

' Having fully described my invention, I claim:

1. In a. machine of the type set lforth, an upright standard a horizontal bracket supported at the upper end of said standard for pivotal movement about a vertical axis and relatively to the standard, said bracket having front andl rear pairs of sleeves, a )air of beams fitted in said sleeves for slicing movement in the direction of their length and disposed 'tangentially of the pivot of said. bracket, a cross head fitted on the front ends of said beams, a. transverse saw carryin shaft, bearings for said shaft 'associat with said cross head, a motor supported from the rear ends of said beams and gearing between Said motor and the saw carrying shaft. y

2. In a machine of the type set forth.l an upright standard, a horizontal bracket supported at the upper end of smid standard for pivotal movement about a vertical axis, said bracket having front and rear pairs of sleeves, a air of beams fitted in said sleeves for sli ing movement in the direction of their length and disposed tangentially of the pivot of said bracket, said sleeves being provided with pulleysjournaled in the bracket at the base of the sleeves Iand on which said beams rest, a cross head tted onthe front ends of said 'between said motor and the beams, 4a transverse saw carrying shaf bearings forsaid'shaft associated with sai cross h ad, a motor supported from the rear ends o said beams and gearing between said motor and the saw carrying shaft.

3. In a machine of the type set forth, an upright`v standard, a horizontal bracket supported at the upper end of said standard for pivotal movement about a vertical axis, said bracket having front and rear pairs of sleeves, a pair oflbeams. fitted in said sleeves for sliding movement in the direction of their length and disposed vtangentially of the pivot of said bracket,l a cross head fitted on the front ends of said beams, a transverse saw carrying shaft, bearings Iforsaid shaft associated with said cross head, a motor having its base provided with dowel pins fitted in said beams, the sleeves of the rear pair having slots through which said dowel pins may move in connection with the sliding movement of said beams and gearing saw carrying shaft.

4. In a machine of the type set forth, 'an upright standard, a horizontal arm mounted in overhangin relation upon the up r end of said stan ard, a horizontal brackt pivotally mounted upon the outer end of said arm for movement about a vertical axis parallelto said standard, said bracket having front and rear sleeves a air of beams itted in said sleeves for slidingv movement in the direction of their length and dis osed tangentially of the pivot o said brac et, a cross head fitted on the lfront ends of said beams, a transverse saw carrying shaft, bearings for said shaft associated with said cross head, avmotor supported from the rear 'ends of said bea-urs and gearin between said motor and the`saw carrying s aft.

5. In a machine of the type set forth, an upright standard, a horizontal arm mounted in overhanging relation upon the upper end of said standard, a horizontal bracket pivota-lly mounted upon said arm for movement about a vertical axis parallel te said standard, a transverse saw carr in a support for said shaft slidab y ltted to said bracket for movement in the direction of its length, and disposed tangentially of the pivot of said bracket, said shaft being mounted at the front end of said su port, a motor mounted at the rear end o said support and gearing between said motor and said shaft.

6. In a machine of the type set forth, the combination of a motor, a slidable beam element carrying a tool-shaft, the ,motor and vbeam element being mounted for pivotal movement about a vertical axis, a second tool carrying shaft supported independently of the slidable beam element, and means adapted for operatively connecting said motor with said tool carrying shafts.

shaft,

y "JIn a meohinev of 'he type setforth, an :uptight standard, a horizontal bracket suprtod at-the upper end of the standard for ivotal movement about a vertical axis, a slidable beam element carrying a motor at one end and a'transversely extending saw- Shaft at the other end, gearing between said motor and saw carrying shaft, and a Worksupporting device positioned at one side of the upright standard and provided with an 3' operating shaft having a pulley positioned to receive a power transmission means-ex Vbracket isturiied on its axis to bring `'the tending from. the motor shaft when the motor shaftiopposite the operating shaftl of said Work-supporting device.

A8. lIn a machine of the type set forth, the

combination of a motor, a slidable carriage :Llportingaidmotor and provided with a fonezend, means upon which said carriage is rotatably mounted, a se@ ond tool carrying shaft supported independent-ly of the slidable carriage, and means adapted for operatively connecting said motor with said tool-carrying shafts.

9. In a machine of the type set forth, the combination of a motor, a slidahle carriage supporting said motor and provided with a tool shaft at one end, means upon which said carriage is rotatably mounted, a second tool carrying shaft supported independently of the slidable carriage, and

means adapted in one arrangement to conneet the motor with the tool-shaft onJ the carriage Yand in another arrangement to connect the motor with the other tool-shaft. Signed at Philadelphia, in the county of Philadelphia, State of Pennsylvania, this 31 day of March, 1922. y MACKINTOSH HUTCHINSON.

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