US1621999A - Combination woodworking machine - Google Patents

Description

March 22 1927.

1,621,999 .1. D. PIERCE comammou woonwomue MACHINE Filed Feb. 28. 1924 2 Sheets-Sheet 1 r g I 1 I I f 1 4 I March 1927" J. D. PLERCE 1'62l999 COMBINATION WOODWORKING MACHINE Filed Feb. 28'. 1924 u g /7 5 a zs m L- 54 52 2 Shoots-Sheet 2 H W, ll

Patented Mar. 22, 1927.

UN l-TE D STATES 1,21, PATENT cri es.

JOHN D. PIERCE, OF CHICAGO, ILLINOIS, ASSIGNOR TQCOIVIBINATION W'OODWORKING MACHINE C0.,-OF CHICAGO, ILLINOIS, A CORPORATION OF, OHIO;

COMBINATION WOODWORKING- MACHINE.

The main objects-of this invention. are to provide a woodworking machine of' compact construct-ion having an improved relative arrangement of parts whereby allaof the common woodworking operations, such as sawing, planing, jointing,mortising, tenoninn, ral'iboting, sanding, boring, grinding, polishing, and the like, may be performed on a single machine; to provide an improved mounting for the operating spindle; to provide an improved constructionand' arrangement of frame for housing andsupporting the operating mechanismgto-provide an improved relative arrangement of adjustable tables for supporting the work: to- -be acted upon in various positions with respect to the cut-ting tools;: and to provide an im proved form of mounting for a pressure roller arranged to hold: the work. firmly on one of said tables during one of'theoperations. i

An illustrative en'ibodiment of this invention is shown in theaccompanying,drawings wherein Figure 1 is a central vertical: section of the machine.

Fig. 2-. is a: horizontal fragmentary section, on a reduced scale, taken on the line 2-2 of Figure 1.

F ig. 3' is a side elevation of thesame, the adjustable boring. tablev being. ini section taken on the line 3 *3Ofl Figure 11.

Fig. 4 is-anenlarged horizontal fragmentary section taken onthe-line Hot Fig.3.

In. combination woodworking machines heretofore in use involvingz a so-called thickness planer wherein the work-supporting table is adjustably mounted below the cutter-head, the parts have'beenarr-angedso as to render impossible theplaning of a board havinga greater widththan the cutter-head. In. such constructions, the cutter-headis journaled in frame parts extending upwardly on opposite sides of the tableand, consequently, these frame parts or standards form obst actions which prevent any board of greater width than the table from being fed to the cutter-head.

Moreover, in woodworking machines..- heretofore in use, combining. jo-i-nter, thickness planer, saw and boring table,.the frame has not. been of a closed construction and has consisted merely of upright standards, so that the operating parts have been in the way of the operator,. complicated. inconstructiomand' requiring a large amount of floor space:

In the specific construct-ion herein shown. thepresent invention" is applied to a woodworking machine wherein the operating spindle extends beyond the flame, and the rotatable cutter-head is mounted on the projectingpartaof thespindle. The work-supporting table, which; is mounted below the spindle, extends beyond the outer-end of the mitten-head, andtlie space. between the table and the head is free from obstruction. This construction permits the planing. to: any desired thickness of a board of greater width than the head by passing: the heard through the machine a second time with edges reversed. The frame is of hollow, columnar construction and houses the driving mechanism so-asto preserve it substantially free from dust. The columnar construction of the frame, instead of the customary horizontall open type, greatly economizes on floor space and simplifies the construction.

In the construction. herein shown, the invent-ion is; applied, to a woodworking machine comprising a. hollow columnar frame l, on which-is mounted an operating spindle 2, and vertically adjustable tables 4i, and 5,,Which arearranged to'support the work invarious positions to be'act-ed uponbythe 4 cutting. tools which are mounted on the spindle.

As illustrated, the frame 1. comprises a base part 6 and head 7. Formed on the base part6, are brackets 8. and 9, in which are mounted adjusting screws 10 and 11, respectively, connected to the tables 3 and 4, where- .by said. tables may be vertically adjusted similar. tool; whichex-tendsthrough an opening inthe table l. The other end of the sp1ndle-2 projects. beyond the head 7 for supporting arotatable cutter-head 16, and a1so,-by means of. the socket 17, inits outer extremity. for supporting certain other tools,

such as a disksander, mortiser, tool grinder, boring tool, etc. (not shown). The improved mounting of the spindle 2 permits the cutter-head 16 to overhang the table 3, without theuse of any vertical supporting member at the outer extremity of the spindle.

The table 3 extends beyond the outer end of the cutter-head 16, and the space between said table and the overhanging head is free from obstruction, whereby. a board of greater width than the head 16 may be planed, as hereinbefore described. Formed on the inner end of the table 3, is a dove-tailed mem ber 18, which coacts with the guideways 12 for supporting the table. A hand screw 19, extending through the member 18, is an ranged to clamp the table 3 in any of its adjusted positions. A gauge 20 is adjustably mounted on the upper face of the table 3 for guiding the work in rabbeting and similar operations.

Slidably mounted on the lower side of the table 3, is a pair of rods 21, on the outer ends of which is supported a boring table 22 which is thereby movable toward and away from the spindle 2 for feeding a piece of work to the boring or other tool supported in the end of the spindle. Embracing the rods 21 and bearing between the head 7 and cotter pins 23 on said rods, are helical springs 24 which normally urge the boring table outwardly. The boring table 22 is shifted inwardly against the action of the springs 24 by a foot lever 25 which is connected to said table by a cable 26 passing around an idler 27 mounted on the table. 3. Mounted on one of the rods 21 and adapted .to coact with the adjacent end of the table 3, is a collar 28 which is adjustable for setting thedepth of the cut in the work on the boring table. The boring table is removable so that it may be taken off ofthe machine when not in use.

In the form shown, the table 4 is mounted on a box -like bracket 29, which is vertically slidable on the guideways 13.

comprising a pair of separate sections 3t) and 31, which are adjustable along upwardly inclined guide members 32 by means of adjusting screws 33. Extending upwardly from the stationary guide members 32, are brackets '34, on which is mounted a hinged gauge or guide 35 adapted to be" adjusted to various angular positions relative to the table 5 for guiding the work along said table in position to be acted upon by the rotatable cutter-head 16. The guide 35 permits the work which is fedalong thetable part .31) in the direction of the 'arrow.Fig. 3, to be jointed accurately at any desired angle.

Arranged below the table 5 on opposite sides of the head 16, is a pair of pressure rollers 36 and 37, which are supported in resilient brackets 38 mounted on the underside of the guide members 32. The pressure rollers are both used to hold the work firmly against the table 3 as it is being fed along said table in the direction of the other arrowFig. 3. However, in some classes of work, such as making a deep rebate, (rabbet) wherein the work is fed along the outer end of the cutter-head 16, it is desirable to remove the roller located in advance of the cutter, otherwise said roller would prevent a sufiicient depth to the rabbet in the work. For this reason, the roller 36 and its outer bracket 38 are removable so as to leave the work in advance of the cutter free from obstruction when it is desired to cut deeply into the work.

In the specific construction herein shown, the drivin mechanism comprises an electric motor 3!),T1aving its drive shaft 40 projecting into the base 6 and connected to a pulley on the spindle 2 by an endless belt 41 which is completely housed within the columnar frame 1. To permit tensioning of the belt 41, the motor 39 is mounted so as to be vertically adjustable. For this purpose the motor is secured to the base of the frame 1 by bolts 42 having the desired number of washers 43 arranged between the base and the motor.

The machine is so arranged that the four different parts,--the saw table, the jointer table, the planer table, and the boring spindlcmay be used simultaneously by four men without interfering with one another. It is believed that the various operations which may be performed on this machine are sufficiently clear from the foregoing de scription without any detailed descriptionof the many possible uses. 7

Although but one specific embodiment of this invention has been herein shown and described, it will be understood that numerous details of the construction shown may be altered or omitted without departing from the spirit of this invention as defined by the following claims.

I I claim:

1. A woodworking machine comprising a frame, a vertically adjustable table mounted on one side of. said frame, an operating ea-recs tion of said spindle, a pair of stationary supporting members rigidly attached to said frame on respectively opposite sidesof' said spindle and located substantially in the hori- ;zontal plane of said cutter-head, and a-bearing member located beyond the outer end of said cutter-head and secured to said sta tionary. supportingmembers to formia bearing for-the outer end of said spindle whereby the top of said vertically adjustable table is free from obstruction both underneath and beyond the end of said cutter-head and is adaptedvto support wider materialthan said cutter-head while the. upper surface of said material is being operatedon by. saidcutterhead substantially as described.

2. A woodworking machine comprising a frame, a vertically adjustable table mounted on one side ofsaid frame an operating spindle .journaled near the top of said frame on a. horizontal axis and. having a portion thereof projecting. beyond said frame and overhanging said table, a rotatablev cutterhea-d mountedionthe overhanging portion of said spindle, apa-ir of stationary supporting members rigidly attached to said frame on respectively opposite. sidesof. said. spindle and located substantially in. the horizontal plane of said cutter-head, a bearing member located beyond the outer end of said cutterhead and secured to said stationary supporting 111IIllJ6I'S:tOCfOIl11 a bearing for the outer end of said spindle whereby the top of said vertically adjustable table is free from obstruction both underneath and beyond the end of said cutter-head, and a second table comprising two independent parts supported respectively on said stationary supporting members above the plane of said cutter-head so that said second table is adapted to hold material the lower surface of which is being acted on by said cutterhead, substantially as described.

3. A woodworking machine comprising a frame, a vertically adjustable table mounted on said frame, an operating spindle journaled in said frame on a horizontal axis and having one end thereof projecting beyond said frame and overhanging said table, a rotatable cutter-head mounted on the overhanging part of said spindle, said table extending beyond the outer end of said cutterhcad, the entire upper face of said table being free from obstruction below said outter-head and beyond said head, a pair of stationary supporting members overhanging said table on respectively opposite sides of said spindle and located substantially in the horizontal plane of said cutter-head, a bearing member mounted on said supporting members and forming a bearing for the outer end of said spindle, another table located in a plane above said spindle and comprising a pair of parts respectively supported on said supporting members for naled in said frame on a horizontal axis and having one end thereof projecting beyond said frame and overhanging said table, a rotatable cutter-head.mounted onthe overhanging part of said spindle, said table extending beyond the outer end of said: outter-head, the entire upper face ofv said table being free from obstruction below said cutter. head. and beyond said head, a pair of stationary; supportingmembers overhanging said table on respectively opposite sides of said spindle. and located substantially inthe horizontal plane of said cutter-head, a hearing member mounted. on said supporting members and forming a bearing for the outer end or: said. spindle, another table located in a plane. above said spindle. and comprising a pair of parts respectively supported on said supporting members for holding work in position to have the lower: face thereof acted. upon by said cutter-head, a pair of springs mounted on the lower face of each of said; supporting. members and having bearing parts formed therein, and a pair of rollers journaled in the bearing parts of said springs and normally urged downwardly by said springs.

5. A woodworking machine comprising a frame, a vertically adjustable table mounted on said frame, an operating spindle journaled in said frame on a horizontal axis and having one end thereof projecting beyond said frame and overhanging said table, a rotatable cutter-head mounted on the overhanging part of said spindle, said table eX- tending beyond the outer end of said cut-terhead, the entire upper face of said table being free from obstruction below said cutter-head and beyond said head, a pair of stationary supporting members overhang ing said table on respectively opposite sides of said spindle and located substantially in the horizontal plane of said cutter-head, a bearing member mounted on said supporting members and forming a bearing for the outer end of said spindle, another table located in a plane above said spindle and comprising a pair of parts respectively supported on said supporting members for holding work in position to have the lower face thereof acted upon by said cutter-head, a pair of substantially flat springs mounted on the lower face of each of said support ing members and having bearing parts formed therein, and a pair of rollers journaled in said bearing parts and located on lid respectively opposite sides of said spindle adjacent said cutter-head,-one of said springs being removable to permit its roller to be removed. 7

6.- A u 'oodworking machine comprising a hollow columnar frame having vertical guideways on opposite sides thereof, a pair of vertically adjustable tables supported on said guideways, an operating spindle journaled in said frame on a horizontal axis and having one end thereof projecting beyond said frame and overhanging one of said tables, a rotatable cutter-head mounted 'on the overhanging part of said spindle, said one table extending beyond the outer prising a pair of separate parts respectively supported on said supporting members for holding Work in position to have the lower surface thereof acted upon by said cutterhead. a

7. A Woodworking machine comprising a frame, a vertically adjustable table mounted on one side of said frame, an operating spindle j ournaled near the top of said frame on a horizontal axis and having a portion thereof projecting b yond said frame and overhanging said table, a rotatable cutterhead mounted on the overhanging portion of said. spindle, a pair of stationary support ing members rigidly attached to said frame on respectively opposite sides of said spindle and located substantially in the horizontal plane of said cutter-head, a bearing member located beyond the outer end of said cutterhead and secured to said stationary supporting members to form a bearing for the outer end of said spindle so that the top of said vertically adjustable table is free from ob struction both underneath and beyond the end of said cutter-head, a second table comprising two independent parts supported respectively on said stationary supporting n'iembers above the plane of said cutterhead so that said second table is adapted to hold material the lower surface of which is being acted on bv said cutter-head, and means on each of said stationarv supporting members for independently adjusting said second table parts, substantially as describes.

Signed at Chicago this 7th day of January, 1924.

JOHN D. PIERCE.

CERTIFICATE OF CORRECTION.

Patent No. 1,621,999. Granted March 22, 1927, to

JOHN D. PIERCE It is hereby certified that the State of Incorporation in the above numbered :patent was erroneously given as "Ohio", whereas said State should have been given as "Illinois"; as shown by the records of essi gnmeots in this office;

and that the said Letters Patent should be read; with this eorreetion therein that the some may conform to the record of the ease in the Patent fifties,

Signed and sealed this 26th day of April, D. 192?,

J, Moore, Seal Acting Commissioner of Patents:

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