US1402667A

US1402667A - Woodworking machine

Info

Publication number: US1402667A
Application number: US421322A
Authority: US
Inventors: Shaw Henry
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-11-02
Filing date: 1920-11-02
Publication date: 1922-01-03
Anticipated expiration: 1939-01-03

Description

, APPLICATION FILED NOV. 2. 1920.

H..sHAw. WOOQWORKING MACHINE.

PatentedlJan. 3,1922.

- 2 SHEEIS-SHEE'I I.

EHI

H'. SHAW.

WOODWORKING MACHINE.

APPLICATION FILED N0v.2,192o.

2 SHEE'S-SHEE'I 2.

Patented Jan, 3, 1922.

HENRY SHAW, 0F BIRMINGHAM, ENGLAND.

'WOODWORKING MACHINE.

Specification of Letters Patent. Patented J an; 3, 1922.

Application filed. November 2, 1920. Serial No. 421,322.

To all wlw/m t may concern.'

Be it known that l, HENRY SHAW, a subject of the King of Great Britain, residing at 109 Summer Lane, Birmingham, in the county ot VVar'wick, England, have invented a certain new or Improved Woodworking Machine; and I do hereby declare that the following is a full, clear, and exact description of the same. y,

rhis invention relates to a wood working machine and has for its object to provide a machine of simple and inexpensive construction whereby wood working operations, such as jointing, planing, moulding, tenoning chamtering or sawing may be conveniently carried out.

More particularly myinvention relates to that type of machine which includes a table pivotally mounted at one end, the table havin a guide and also having a Aslot through which a rotating tool or cutter projects, the

arrangement being such that the wood to be operated upon is travelledV along' said table in contact `with the table and the guide and is acted upon by the cutter during its travel. In this class of apparatus it has been proposed to provide spring members to press the wood `into contact both with the table andtheguide.` v v i `The object ot the present invention isto provide `an Iimproved machine of simple f. construction and in accordance therewith the machine comprises a'table of L or angle section having a lug formed upon the under -side thereoiia base member, ay pivot pin carried byy said base member and adapted to engage thesaid lugto pivotally supportthe table, a spindle mounted on said base and adapted to `carry aL wood working tool, means for driving said wood working tool,

an opening inthe table through which the wood working tool may project, means for varying the size ci' said opening'to accommodate different tools, and an adjustable labutment adapted to control the height of the table above the tool. j

Referring to the drawings:

Figure l is an elevation of one form of my improved machine.

Figure 2 isaplan view ofsame.' j j igures 3 and ltare sectional elevation and plan view respectively.,

Figure 5 .illustrates onezof the spring holding'rods removed; v '1 Figure 6 isan elevationl of a modified machine.

Figure 7 is a plan view.

Figure 8 is anend elevation. j

In the construction illustrated atV Figures 1- 5 the table 1 consists simply of a niember of L or angle section provided withy a PATENT OFFICE. j

lug 2 upon its underside atone end whereby j it may be pivoted. Thistable is provided with a slot or opening 3 at about the centre of its horizontal tace through which a wood werking tool may project. This opening may be adapted to receive lone of a series of plates 5 each having a dile'rent sized opening to accommodate or suit different tools.

These plates are secured in position in the upper part of said opening and in countersunk relation with the horizontal'suri'ace of the table by means of plates`6 which are secured to the table by screws 7 yor other means and to the plates by means of the counter y sunk screw 8.

The holes in said `table or in said platesy may be of larger sectional area at the bottom than at the top so as to tit more closelyA to a rotating circular tool. l

The plate is provided w1 th a bridge `piece 8a to strengthen the plate being so formed to provide a clearance for the tool.

The vertical side of the table is also provided with a cut-away part 9 to provide a clearance for the bridge piece. of the plate,

The table is pivoted to a base plate 10 whichis adapted to be secured to a bench or the like by holding down screws, and between the upper surfaceof this base plate and the under surface of the table at the opposite end to that where the hingeis situatedis a screw device whereby the tablemay be swung on its pivot and adjusted and, `locked into any desired position.

This screw device may consist of a'simple set screw 11 with a milled head 12 uponwhich rests the under side ot the table. A locking nut 13 also having a milled head is placed on this screw and is adapted to be screwed downV on to the upper surface of the base plate. f

As is usual in this class of machine, the tool is carried on a spindle 14 arranged beneath the table and I may provide bearings 15 for said spindle on an extension 16 of the base plate. It will .be understood that the said spindle may be provided with a belt pulley as 17 in the construction illustrated or with a driving motor or other driving element. It will also be understood that the end of the spindle which projects `beneath the table-is suitably shaped to accom any wood working-.operation which can be carried out by a rotary tool. i Y

Springs of improved construction are prof vided whereby the wood may be kept in contact With the horizontal and vertical faces of lthe table. l may provide tour oi said springs, all of whichjinay be of the samel construction. These springs also form "a guard for the tool. l

Each springV element may consist or" a rod 1'9, seeFigure 5, slidably mounted in a hole 20 in the horizontal or the vertical `face of the table, a set screw 21 being provided whereby said rod may be adjusted into any suitable position in relation to the table. @ne end ofthe rod is slotted 22 'and provided with a binding screw. 23. The slot in the lend. of the rod accommodates a steel or other plate 'spring 24 consisting of a long blade having one end curved so as to give the wood a lead into the spring. lt willV beY understood that thewset screw which locks the spring carrying rod to the table, not only permits sliding movement of said rod butpermits also Va rotary movement so that the angle between the spring and the oppo-V site face of the table can be varied as desired. I niay provide two series of holes 2O on either side of the tool so that they may be disposed in the direction in which the vwork is being fed.

` The table and the base plate may be inade froml simple castings Vwhich are given the necessary stiffness' by means ol' ribs or Y .webs 26.

The' table can be adjusted transversely in relation vto the base plate so thatv the gap in the table can be adjusted in relation tothe position of the tool upon the driving spindle. This may be carried out by forming the base plate with two spaced bearings 284-28, in whichvis liXed a pivot 29. The pivoted table Vis provided with a downwardly projecting lug 30, the'tliiclrnessV of which is considerably :lessthan the distance between the spaced bearings upon the base plate. This lug is Ydrilled so thatit can be mountedl upon theV pivot. VPassing' radially into the lug is arj ranged a'set screwBl for locking thek table Vto the pivotin any; required' position. VBy

thisniethodn of: mounting the table upon` the base plate the table cany be moved transverselywith respect'to the base plate in addi- 'tion to Vbeing pivoted thereto. Asfthe table Y may also include a guide for the'work this method'of mounting the table enablestlre work to be'positioned relative to Vthe tool with'a minimunircvf trouble. i

V`ln the'construction illustrated: -atlFigures Y 6 8, insteadof using'gap:` plates, an arrangement maybe provided wherein the table is providedwith agap, the size of 'which can beY adjusted by two adjustable plates 35e-36 mounted upon the table. vThese Vplates are mounted in grooves 37 upon thel table so that theycan slide therein, locking nuts,

' such as set screws 38 having awing nut 39,

being provided for securing them in an adjusted position, The adjacent ends 40- ot these 1lates ma be under cut to a curvature approximating to the periphery of the tools used. These plates can slide in the` grooves moving either towards'or awayz from eachother so as toY adjust the lengthy of thegap through which the tool works.

One of the adjustable plates 316 carried by the table may be mounted uponl anurnber,

say four, adjustable set screws 41, by which the level of the plate can be adjusted, thus rendering unnecessary the accurate machining of the surface ol" the tablev which` would otherwise have to bedone to` ensure that they table was quite square with the tool. These set screws pass through holes in thel table and canbe screwed up Vor down` 4ifroni be;

neath the table. Thevother adjustableplate andpassing through aV hole in the table and securedI by anut 'and preferably also be# neatli a spring washer 42. The two eccentric rollers may be operated by cranks 44e which are connected Ibya couplingrodi` 45;

The purpose vof arranging Vthe movable plates adjustablefin height is so that the i levelof them or the level of one of them can be adj usted; to compensate fory the difference in thickness of the material before and after it has been operated upon byv the tool'.n yIf the inaterialffundery treatmentjis caused'to slide along vone of the movable plates and isthenoperated uponbyr a planingy tool,l for instance, it is clear that after'passingfthe tool its thicknessfwill be reduced. Consequentlythe movable platev which is" situated beyond the tool will needto beat a slightly higher llevel than the movable plate which supports tliematerial before' it reachesjthe tool.

It will be understood that although I have described a gap plate in one construction and adjustable plates' inthe other forf'varying the size Aof .theholeinatheftablegany Y other suitable meanszmafy'be provided for this purpose,- ei'ther aloneorin` conjunction withv the adjustable'fplates. One other-'way ofproviding a suitable gappiece'to suit the tool is by me'ans'of a piece of wood of a suitable size to fit within Ythe hole in the table',

the gap beingY subsequently cut by the wood 1 'Working tool itself. ln this Way a suitable gap piece can be easily and cheaply produced for any tool.

lt Will also be understood that l may also use a gap piece as illustrated in Figures 3 and l in the machinery having the adjustable plates for certain operations, to which the gap piece may be more suited, the table being,l provided With a holeto receive the plate. i

What l claim then is t l. A Wood Working machine comprising a table of angle section7 a base member. a pair of spaced bearings carried by said base member, a pivot pin disposed between and con` necting said spaced bearings, a lug on the under side of the table which is slidably and pivotall,v mounted on the pivot pin to permit transverse and pivotal movement thereof, means for securing said lug in its transversely adjusted position, an adjustable abutment on said base adapted to limit the pivotal movement ot' said table, a spindle carried by the base, a Wood Working tool carried by said spindle adapted to project through an opening in the table, and means for varying the size of said opening to accommodate different tools.

2. A Wood Working machine comprising a table of angle section, a base member, a pair of spaced bearings carried by said base member, a pivot pin disposed between and connecting said spaced bearings, a lug on theJ under side of the table which is slidably and pivotally mounted on the pivot pin to permit transverse and pivotal movement thereof, means for securing said lug in its trans-- versely adjusted position, an adjustable abutment on said base adapted to limit the pivotal movementv of said table, a spindle carried by the base, a Wood Working tool carried by said spindle adapted to project through an opening in the table, and a pair of adjustable plates slidably mounted on said table to vary the size of theopening in the table. i

8. A Wood Working machine comprising a table of angle section, a lug. on the under` side of said table,a base member, a pivot pin carried by said base member and adapt ed to engage the said lug to pivotally support the table, an adjustable abutment on f said base adapted to control the height of said table, a spindle mounted on said base, a Wood Working' tool carried by said base and adapted to project through an opening in the table, a pair of adjustable plates slidably mounted on said table to vary the size of said opening to accommodate different tools, means for adjusting the heights of said plates relative to the table and to each other, and means for securing them in their adjusted position.

In Witnesswhereof I aflix my signature.

HENRY SHAW.