US2542615A

US2542615A - Wood grooving machine

Info

Publication number: US2542615A
Application number: US103669A
Authority: US
Inventors: Balazs George
Original assignee: ANNA MATYI
Current assignee: ANNA MATYI
Priority date: 1949-07-08
Filing date: 1949-07-08
Publication date: 1951-02-20
Anticipated expiration: 1968-02-20

Description

Feb.2o,1951

Filed July 8, 1949 G. BALAzs Y WOOD GROOVING MACHINE 3 Sheets-Sheet 1 'WWW Feb. 20, 1951 G. BALAzs WOOD GROOVING MACHINE Filed July 8, 1949 3 Sheets-Sheet 2 INVEN TOR.

GEORGE BALZ5 W www M WA Feb. 20, 1951 G. BALAzs woon GRoovING MACHINE 3 Sheds-Sheet 3 Filed July 8, 1949 INVENTQR GEORGE BALAzs Patented Feb. 20, 1951 WOOD GROOVING MACHINE George Balzs, New York, N. Y., assignor of twenty per cent to Anna Matyi, New York,

Application July s, 1949, serial No. 109,669

This invention relates to new and useful improvements in wood Working machines, and, more particularly, the daim is to provide a novel and valuable such machine characterized by simplicity of construction, reliability in operation, ease, quickness and convenience of adjustment for performance of a particular job of mortising, grooving or routing contemplated, and effectiveness and rapidity of operation in doing the work.

The invention consists in the details of construction, and in the combination and arrangement of the several parts of my improved Wood working machine, whereby salient advantages are present, as will below fully appear.

For further comprehension of the invention, and of the objects and advantages thereof, `reference will be had to the following description and accompanying drawings, and to Vthe appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

Fig. 1 frontally perspectively shows a now favored embodiment of the machine of 'the present invention.

Fig, 2 is a vertical section, taken substantially on the line 2 2 of Fig. 1. f Fig. 3 is also a vertical sectional view taken on the line 3 3 of Fig. 1; the upper element here shown being a Work holding table reciprocable back and forth in the directions indicated at A in Fig. 1.

Fig. e is a top perspective view of a slide seen also in Figs. 1-3, reciprocable back and forth in the directions indicated at B in Fig. 1; said slide having fixed to the top thereof a pair of guide rails for said table.

Fig. 5 is a bottom perspective View of said (slide.

Fig. 6 shows in perspective a shelf structure vertically reciprocably carried bythe-front of the main frame of the machine, said shelf for guidingly mounting said slide.

Fig. 7 is a View similar to Fig. 3, but on a reduced scale, for showing said table in the entirety of its length and also for showing certain parts operatively associated with the table.

A- Fig. 8 is a bottom perspective of said table.

Fig. 9 is an enlarged fragmentary detail View, taken on the line 9 9 of Fig. 1.

Fig. 10 is a rear elevation of the machine.

Fig. 11 is a perspective view of a piece of work prepared on the machine of the present invention.

Referring now to the drawings more in detail, and by reference numerals, the main fram- 4 Claims. (Cl. 1114-136) ing of the machine, shown as a casting shaped to provide generally a box-shaped housing 2li.

The housing carries a shelf 2l, a slide 22 and a table 23. Mounted on the table 23 there are spaced work holding clamps 24. Y

Suitably secured on the top of the slide 22 are a pair of ribs 25, these of dovetail cross-section, and constituting the rails aforesaid; said ribs fitting in grooves 25a at the bottom of and extending longitudinally of the table. Laterally of the slide 22, and parallel with the ribs 25, there is a groove 26 the utility of which will shortly become clear.

The lower front wall portion 26a of the housing 28 has a vertical slot 21 spaced from opposite sides of which are fixed a pair of L-shaped track members 28 for guidingly engaging the opposite side edges of arear suitably machined plate 29 integral with the shelf 2l.

A capped stud 3e is provided, the shank of which extends through the slot 21 and also through an aperture in the plate 29; said stud being threaded into a nut traveller y3l on a suitably journalled vertical screw 32 fast on the upper end portion of which is a bevel gear 33 meshing with a similar gear 34 on a horizontal shaft 35 extended from a side of the machine and beyond aside Wall of the latter xedly carrying a crank handle 36.

In the hollow rounded top portion 31 of the housing 20 are suitably mounted

ball bearings

38 and 39 for a shaft 4B. Said shaft at the rear of the machine is desirably provided with a stepped f pulley, not shown, for receiving a belt drive from a suitable power source, as an electric motor mounted adjacent to the machine or on a supporting plate or the like secured to the housing 20. The forward end of said shaft 4i) carries a chuck 4l, for holding a desired type of cutting tool, ras the routing tool indicated at 42.

By means of the said crank 36, the shelf 2 I, the slide 22 and the table 23, together with the piece of work suitably clamped on the table, may be raised or lowered relative to the field of whirl of the tool 42, as for cutting a slot 43a in the work piece 43. The work piece 43 is indicated in dot and dash lines in Fig. 2; the arrangement being such, it will be noted, that the slot 43a will longitudinally extend laterally of the table 23 and said slot will have the outer end thereof at an edge of the work piece on a portion of the latter closest to the front plane of the machine. The Width of said slot is predetermined by the height to which the shelf 2| is raised.

For rectilinearly adjusting the slide 22, in terms d of its shiftability as per the arrow B of Fig. 1, thereby to predetermine the depth of the slot 43a there is provided a handwheel 44 xed on a shaft 45 incorporating a screw 46 engaging a thread in a tapped hole 4l extended through and longitudinally of an upstanding rib 48 on the shelf 2|, this rib accommodated in a groove 49 formed inthe bottom of the slide 22. The back and forth movements of the slide 22 being guided.

by rails l of L-shaped cross-section on the shelf 2l.

For rectilinearly adjusting the table 23 relative to the slide 22 and in terms of the shftability of said table as per the arrow A of. Fig.` 1, thereby to" predeterminedly transform the; initiallyl uuty groove into a channel of the desired width, a

crank 52 is fixed on the front end` of ashaft 53v suitably journalled by means including a block t gaging said slide for limiting movement of said table on said slide within the extremes of said limit stops for controlling the lateral extent of thecut: effected inthe workpiece by the routing tool, and stop. means on the housing for engaging the rear edge of the workpiece to limit rearward movement of said slide on the shelf to 1 .control the depth of the cut made in the workmember 54 xed on the shelf 22. The innerend.

of the shaft 53 carries a spur pinion 55, which with rack 5B secured to the underside of the table 23 and accommodated in the groove 26 in the top of the slide 22.

For limiting the amplitude of such shift of the table 23, as for taking care of the situation where a plurality of work pieces are to be grooved, routed or channelled all alike, a suitable plurality of thread carrying like stop pins 5-1 are provided, these for temporary selective use relative to different ones of matchingly threaded holes 58 in the bottom of the table 23 to strike the sides of the slide 22 as the table is shifted longitudinally. Thus for any particular job,r whether it be for the cutting of a single work piece or for the identical cutting of any plurality of workv pieces, the width of the channel may quickly and unerringly cut' precisely as desired.

Further, the safe maximum amplitude of endwise movement of the table- 23- is protectively provided for, by the use of a pair of stopV blocks 59 spaced along thefront edge of said table for coaction with a stop Si! fixed on the slide These blocks 59 and stop Si) are so located as to kprevent the clamps 24 from being brought into contact with the routing tool 42 when the pins .1.

5T are not in use.

AlsoA for adjustably limiting movement of the slide 22 toward the main casting 2Q, thereby to set the machine for cutting the slot Nieto precisely the depth desired, that is, with a dimension in the direction of extension of the axis of the tool 42, a T-shaped stop member 6l is provided, this slida-ble longitudinally of a breached passageway through a rib-like side enlargement 62 of the housing 2S; and a clamp screw G3 is provided for locking the shank of the member 6I in its adjusted position.

While I have illustrated and describedthe preferred embodiment of my invention, it isV to be understood that l do vnot limit'myself to the pre1- -cise construction herein` disclosedr and the right is reserved to all changes and modifications com- -ing within the scope of the inventionl asdened in 'the appended claims.

Having thus described my invention, whatI claim as new, and desire to secure by United States Letters Patent is:

l'. In a routing machine havingavertically elongated housing with a. routing tool extended from the top thereof at the front and. With a shelf vertically slidably mounted onthe front of the housing for vertical adjustment toward and Aaway from the routing tool, a. slide slidably mounted on the shelf for movement forward and .rearward relative tothey s he1f,. meanse for: movpiecef by the routing tool.

2. In a routing machine having a vertically elongated housing with a routingA tool extended from the top thereof at the front and witlra shelf vertically slidably mounted on the front of thev housing` for vertical adjustment toward and away from the routing tool, a slide slidably mounted on the shelf for movement forward and rearward relative tothe shelf,V means for moving said. slide relatively to the shelf, a table of a length greater than. the width of said slide slidably mounted on said slide for longitudinal movement, in a direction laterally of saidslide, means. on said table for clamping. a workpiece to. the top face thereof, meansfor' moving said table relative; to` said. slide, limit stops on. said slide and said table for retaining said table from being disengaged from said slide by its respective moving means, adjustable stop means on said table engaging said slide for limiting movelment of said table on said slide. within the extremes of said limit stops for controlling the latral extent of the cut effected` in the'workpiece by the routing tool, and stop means on the housing for engaging the rear edge ofthe workpiece to limit rearward movement of said slide on the shelf to control the depth. of the Ycut made in the workpiece by the routing tool,

said limit stops comprising a stop block mounted Avon the slide substantially mid-way of its sides and an upwardly projected end portion overlapping the front of said table, and spaced stop blocks lmounted onthe front of said table and on opposite sides of said first-mentioned stop block.

3. In a routing machine having a vertically elongated housing with a routing tool extended from the top thereof at the front and with a shelf vertically slidably mounted on the front of the housing for vertical adjustment toward `.and away'from the routing tool, a slide slidably mounted on the shelf for movement forward and rearward relative tothe shelf, means for moving said slide relative to the shelf', a table of a length .great;r than the width of said slide slidably mounted on said slide for longitudinal movement in a direction laterally of said slide, means on said table for clamping a workpiece to the top face thereof, means for moving said table rela- 1tive to said slide,` limit stops on said slide and said table for retaining Saidtable from beingdis'- engaged from. said slide by its` respective moving gineans, adjustable stop means on said table'Y engaging said slide for limiting movement: of said table on said slide within the extremes ofvsaid .limit stops for controllingvl the lateral extent of the. .cut eiected in .the workpiece by the. routing tool, and stop means on the housing for engaging the rear edge of the workpiece to limit rearward movement of said slide on the shelf to control the depth of the cut made in the workpiece by the routing tool, said table having a longitudinally extended line of spaced threaded holes formed in its bottom face, said adjustable stop means comprising stop pins located Von opposite sides oi said slide and selectively threaded into said hol;s.

4. In a routing machine having a vertically elongated housing with a routing tool extended from the top thereof at the front and with a shelf vertically slidably mounted on the front of the housing for vertical adjustment toward and away from the routing tool, a slide Sldably mounted on the shelf for movement forward and rearward relative to the shelf, means for moving said slide relative to the shelf, a table of a length greater than the width of said slide slidably mounted on said slide for longitudinal movement in a direction laterally of said slide, means on said table for clamping a workpiece to the top face thereof, means for moving said table relative to said slide, limit stops on said slide and said table for retaining said table from being disengaged from said slide by its respective moving means, adjustable stop means on said table engaging said slide for limiting movement of said table on said slide within the extremes of said limit stops for controlling the lateral extent of the cut eiected in the workpiece by the routing tool, and stop means on the housing for engaging the rear edge ofthe workpiece to limit rearward movement of said slide on the shelf to control the depth of the cut made in the workpiece by the routing tool, said latter mentioned stop means comprising` a tubular rib-like enlargement formed on the side of the housing above said table, a T-shaped stop member having its shank slidably disposed in said enlargement and its cross head depended to be engaged by the rear face of the workpiece, and a clamp-screw threaded through the side of said enlargement to abut the shank of said T-shaped stop member securing said T-shaped stop member in desired adjusted positions relative to said enlargement.

GEORGE BALzs.

REFERENCES CITED The following references are of record in the file of this patent:

I UNITED STATES PATENTS Number