US1528536A

US1528536A - Woodworking machinery

Info

Publication number: US1528536A
Authority: US
Inventors: Walt Raymond E De
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-01-27
Filing date: 1923-01-27
Publication date: 1925-03-03
Anticipated expiration: 1942-03-03

Description

Ma r. 3. .1925. 1,528,536

R. E. DE WALT WOODWORKING MACHINERY Filed L 27, 1923 2 Sheets-Sheet 1 A ONEY R. E. DE WALT WOODWORKING MACHINERY Filed Jan. 27, 1923 2 Sheets-Sheet 2 %TORNE Y f Patented M. a, 1925.

UNITED 'srATEs PAT'EN/T OFFICE.-

RAYIOND DE WALT, OF BRIDGE'I'ON', NEW

'WOODWOBKING KAC HHQEBY.

Application filed January 27, 1923'. Serial 1T0. 615,1.

To all w hom z't many-concern: Be it known that I. RAYMOND E. Dn

. WAIII, a citizen of the United States, residing at Brid 'ton, in the county of Cumberland and tate of New Jersey, have invented certain newand useful Improvements in Woodworking Machinery, of which the following is a specification.

This invention relates generally to woodworking machines 6f the type in which one or more tools can be mdunted in different I positions toperform a variety of operations.

In the field of wood-working there is a considerable demand for a machine of a universal character that can be quickly adjusted; to perform a great many different I operations ordinarily performed on as many different machines. The ability to eliminate supporting arm is mounted for vertical adjustment along and angular adjustment about a base pedestal that can be attached to a work bench ad'acent its rear edge and close to a wall. e horizontal out-standing arm is provided with an internal "track or slideway to receive a yoke which can be locked in any desired osition to hold a motor pivotally mounte for precise application of a cutting or other tool at any desired angular application to the work.

In'the drawings; in which a referred form of the invention has been so ected for illustration, I

Figure 1 is a viewin side elevation of a wood-working machine embodying the invention. a Figure 2 is. an elevation. of the device shown in Figure 1 looking from the right.- Fi e 3 is a sectional etail view showing t e pivotal connection-between a vertical post andia-tool supportingarm forming part of. the invention.

Figure 4 is a view in I atool-operating motormiounted in two positions in its supporting yoke.

Figure 5v is a' view side elevation show- Figure4 angles to the position shown in Eigure 4.

Figure 6 is a detail view in section showing the construction for locking the yoke stem against rotation in its supporting slid: ing block. y

Figure 7 is a view in perspective of the slidable block which supports the yoke.

,Figu-re 8 is a view similar to Figure 7 showing a portion of the arm and slideway in which the slidable block shown in Figure 7 operates.

Figure '9 is a view in perspective and on showing the motor and yoke turned at right an enlarged scale of the yoke'stem shown in Figure 6. 1

Referring to the.drawings for a more detailed description of the invention, at 5 is shown a base pedestal that is adapted to be attached to the top 6 of a work bench.

A post 7 .is adapated to be supported in the pedestal 5 and to extend downwardly through an opening 8 in the bench top 6 in lowered position of the post. A vertical groove 9 in the postis arranged to be engaged by a set screw 10 to hold the post 7 in various positions .of verticalv adjust-; ment. To change the vertical adjustment of the post 7 a hand crank 11 operates through bevel gears 12 to rotate a screw 13 which has threaded engagement with ,a lug 14 on the pedestal 5:

The upper extremity of the post 7 is fully formed pivotal joint connection withacorresponding flange 16 formed at one end of a-horizontally projecting arm 17. In order to increase the accuracy of fit of. the

two flanges to each other their confronting faces are provided with a circular and concentric projecting area 18 fitting into a correspondmgly form'ed depression 19. while a post 20 set in the end of the post 7 forms a. pintle pin about which the arm 17 may have swinging pivotal movement. A, suitable nut 21 may be employed to lock the arm 17 in any. desired angular position on the post 7. For convenience in setting the arm 17 at the desired angular position the periphery of one or other of the

flanges

15 or 16 may be calibrated,as at 22, for cooperation wit a fixed reference mark 23.

.. The arm 17 is grooved out throughout its length to rovlde a pair of inwardly expanded into a flange 15which has a careextending tree 'or slideways 24 and the u groove and slideways receive and fit the or stem for a yoke mlember 28.

contour of a slide block having a frustoconical formation in crossesection.

' The slide block 25 is provided at a central portion with a round'opening or perforation 26 to receive a bolt 27 forming a support The stem 27 has a *square head member 29 adapted to be received in a transverse groove ,30 in the upper surface of the slide block to pre-- vent rotation of'the stem about its axis. A set screw 31 carried by the slide block is used to lock the. bolt or stem 27 rigidly in position. r

In order to change the angular adjustment of the bolt 27 and yoke 28, the bolt is lifted -'until its head clears the top of the slide block, as id dotted lines in Figure 6, when the yoke may be rotated and again lowered to be held against angular movement by the engagement of the bolt head with the groove in the slide block.

7 It will be seen that the slide block 25 may be moved along the slideways 24 in the arm 17 to any desired position and locked in the selected osition by means of a set screw 32 having t readed engagement with a lug 33 on the slide block and adapted to, bear against the lower surface of one of the slideways 24, or by means of the pinch bolts 17 extending across the upper part of the slideway and forming screw meansfor squeezing the separated sides of the arm together against the slide block.

The yoke 28, to which reference has been made, supports between its arms a small electric motor 35. The casing of the motor is pivotally mounted in the yoke and preferably carries a quadrant member 36 provided with three or more holes 37 adapted to be engaged by a pin or bolt 38 carried by the yoke. By this arrangement the motor can be mounted in different positions, as indicated in Figure 4 of the drawings, to hold.

a tool such as a saw'39 in a horizontal, a

vertical, or in an oblique position to .suit

the requirements of the work. -Further ad-.

justlnents can be obtained by rotating the yoke in its seat in the slide block 25 in a manner already described and indicated in Figure 5 of the drawings.

It will be seen that a great number and variety of posit-ions of the operating tool can be provided by means of the various adjustments described. In addition the slideway. provided by the arm 17 furnishes a guide along which the yoke can be moved through the use of the handle 40 to move the tool along directing lines placed in readily discernible positions on the surfaces of the material facing the operator. Different tools can be mounted on either end of the motor spindle or a drive pulley 41 can be provided for a belt drive connection with other devices, not shown, such as a jig saw attachment, a lathe attachment or the like. The machine is compact and s1m- 'ple in construction and handles close work with a high degree of precision and. while it has been particularly described in conncction with wood-working, it will be clear that it may be equally as well used for other purposes.

What is claimed is 1. In a wood-working machine, a hollow pedestal adapted to be attached to a work bench, a post mounted in said hollow pedestal and having a splined-connection therewith for vertical nonrotative adjustment, a

horizontally extending arm rotatably adj ust- 30 ed on the upper end of the post, a supporting member mounted for adjustment along said arm, and a tool-operating motor adjustably. carried by said supporting member.

.2. In a wood-working machine, a hollow pedestal adapted to be attached to a work bench, a post mounted in said hollow edestal and adapted to be vertically ad usted therein, a horizontally extending arm attached at one end to the upper end of the post for angular adjustment thereon in a horizontal plane, a slide block movable along said arm a yoke depending from said slide block and adjustably supported thereby, and a tool-operating motor pivotally mounted in said yoke.

3. In a wood-working machine, a hollow pedestal adapted to be attached to a work bench,a post mounted in said hollow pedestal'and adapted to be vertically adjusted therein, a horizontally extending arm attached at one end to the upper end of the post for angular adjustment in a horizontal plane thereon, a slide block movable alon said arm, means for locking the slide block cally adjustable post provided with means for securing the same at different elevations, a swinging arm pivoted to said post for swinging in a substantially. horizontal plane, a tool carrying block slidably mounted on said arm, and a tool carrying motor supported by said blockand adapted to be adjusted about a vertical axis and swingable about an axis substantially normal to said vertical axis and means to secure said motor in adjusted position.

5. In a machine of the character disclosed, a horizontally swinging arm having a' slideway groove extending longitudinall of the same and open at the bottom, a sli e block in said slideway, a yoke having a stem, said stem interlockingly engaged with said slide block to afford different angularly adjusted positions in the slide block and operating through the open slideway and a tool. I

-'-all v secured on the upper end of said verti-' ating motor carried by the carriage.

cally adjustable post and held in different. angularly outstanding relations thereon, said arm hdving a longitudinal guideway in the under side of the sa.me,'. a carriage operating in said guideway and a tool oper- 8. In a machine of the character disclosed, a horizontally swinging arm having a longitudinal slideway with a slot open to the bottom of the arm, a block engaged in said slideway and carrying a part projecting down through the slot, a screw for compressing the separated side portions of the arm against the slide block ior securing the same in adjusted relation and atool operating motor adjust-ably'carried by the part which projects down through the slot in the laterally swinging arm.

9. In a machine of the character disclosed. a vertically adjustable post, a, horizontally swinging arm pivoted on the upper end of said post,,means for securing said arm in different angula'rly adjusted relations, said arm having spaced sides with a trackway therebetween, a carriage adjustable along said trackway, screw means for clamping the sides of the arm against the carriage to secure the same in variously adjusted relations and a tool operating motor supported by the carriage and adjustable about vertical and horizontal axes.

10. In a machine'o-f the character disclosed, a tool operating motor, a carriage in which said motor is supported for differ-i ent angular positions, said carriage comprising a slide block of frusto conical cross section, af slideway having ledges for engagement beneath the base of the slide block and over-standing inwardly inclined members for bearing on the frusto conical in- 'clined sides of the slide and means for pinching the sides of. the trackway together to grip the frusto conical slide block 11. In a machine of the character disclosed, a tool operating motor, a carriage in which said motor is supported for different angular positions, said carnage comprlsmg a slide block of frusto conlcal cross sectlon,

a slideway having ledges for engagement beneath the base of the slide block and overstanding inwardly inclined members for bearing on the frusto conical mclmed sides of the slide and means for pinching the sides of the trackway together to grip the frusto conical slide block, said slide block having a transverse seat in the top of the T same and the adjustment of the motor about a vertical axis being effected by a bolt ex tending up through the slide block and having a transversely extending head engageable in .difierent angular relations in said seat.

closed, a tool operating motor, a yoke in which said motor is angularly adjustable about a horizontal axis, said yoke having a In testimony whereof I aflix my signature in presence of two witnesses.

RAYMOND E. DE WALT.

Witnesses:

IRVING H. BONHAM, PHILIP S. DUFFIELD.

12. In a machine of the character disa