US1871637A - Woodworking machine - Google Patents

Description

g- 16, 1932- v c. F. VANCE WOQDWORKING MACHINE Filed Oct. 23, 1931 5 Sheets-Sheet 1 0 o a 2: =5 Au 5: R QN\ \N\ m.w\

INVENTOR.

ATTORNEY.

Aug. 16, 1932. c. F. VANCE woonwonxme MACHINE Filed Oct. 23, 1931 5 Sheets-Sheet 2 (#aaarf/4wa5 INVENTOR.

ATTORNEY.

Aug. 16, 1932. c. F. VANCE 1,871,637

WQODWORKING MACHINE Filed Oct. 25, 1951 5 Sheets- Sheet 5 ATTORNE &

VENTQ Ni n :D? Q l F I L m o l Ii NW Aug. 16; 1932. c, F VANCE 1,871,637

WOODWORKING MACHINE,

Filed Oct. 23, 1931 5 Sheets-Sheet 4 llllllll lli||| INVENTOR. f/unzrfl/me I I W ATTORNEY.

A 1 1932- c. F. VANCE WOODWORKING MACHINE 5 Sheets-Sheet 5 Filed Oct. 25, 1931 ATTORNEY.

Patented Aug. 16, 1932 UNITED srAres CHAR-LES n. vanes; or wrusTon-siaiinmnonrn CAROLINA WOODWRKi'NG MACHINE Application filed October 23, 1551. seer m st-asst.

This invention relates to a machine for" joining sections of wood together and especially to a device for cutting tongues and grooves in the ends of pieces of material so hat these pieces of material canbe glued toether to formstri-ps, planks, andthe like -y desired length and thereby utilizing eat length and of equal strengthas pieces i one continuous plank or the like, thereby' utilizing wast-e pieces of material for'forming' pla-nks of various lengths to be used for various purposes.-

An object of this invention is to provide a machine in which a plurality ofpieces of plank, wood, strips and the" like can be clamped into position and all of theendsiit smoothly in a straight'line, and While stillin the machine these pieces of wood may be passed along a cutter head Wherebya plurality of grooves can be cut in the ends or the piecesso that the pieces can be r'emoved and joined together by' gluing and --to form a piece of material of any desired 1; length, depending upon the number of pieces used and the length of the pieces;

Some of the objects of the invention having' been stated other objects" will appear a's'the description proceeds when taken in conned tion" with the accompanying drawings; in

which Figure l is a sideelevationofthe machine;

Figure 2 is an end'vie'w of themacliine look Figure 6 is an enlarged detail View of one of the clamps; TL Figure 7 is a longitudinal sectional View taken along the clutch shaftand' associated parts;

Figure 8 is a cross sectional View taken along the line 88 in Figure 2;" i i Figure 9 is an end view' of the upper porn short pieces of wood for providing pieces of Shaft38 ismounted' in a support 3 8a'secured ti'on of Figure oand looking from thele'ft hand side thereof; V Figu l0 's an enlarged- View ofth'e other of the clamping means for holding the top edges of the pieces of material in position; Figure 10 is a View of the product of the machine; g

Figure 11 shows a modified form of-operating'means for the Vises; v I H Figure 12 isa sectional View taken airing the I'ineIQA-IQ in Figure 11; p v

Figure 13 is a; iew similar to Figure 12but showing the valve a diiferent position.

Referring more specifically to the draw ings, the numeral 10 indicates the base; poiftio'n' ofthe machineha'ving the upwardly e'Xf tendingportion' 11"and the top portion 12," the top portion supporting an electricmotor 13 having secured thereon a cut-off'sawij 14 l with a shield 15 around the saw, said motor having a shaft 16 on which a pulley v1 7 is mounted with a belt 18 passing around said pulley and passing around also an enlarged Pulley 19 securledfon' sleeve 20 rotatably mounted oii'stud-shaft 20a, and oii'this sleev'e is also secured a pinion 21 meshing with a gear 22 (see Fig 7) which is keyed on a sleeve 23 loosely'rnounted on shaft 24. The shaft sleeve 23' is mounted inaibearing' 28a andjshaft'24 is mountecl ina bearing 24mj 8 Secured on shaft 2-(ljis a sprocket wheel2'5 orif which is mounted a sprocket chain 26" Whiclipa'sses over enlarged'spro'cket' wheel 27 secured onjshaft28 which shaft 28 has se cured thereon a'pinionesawhich meshes with a gearSO mounted on shaft 31 which shaftfil penetrates the portion 11 and has its] other 7 end m'oun'ted in bearing 32, and on the end ofthis shaft isa wheel33 which has a'roller 34: mountedgona stud bolt 35 which roller vis mounted for movement (see Fig l) inslot 36 ofrocking quadrant 37 pivot'ally mounted asjat 38 on the portion 11-; and the'up perend of member 37 has-the curvedsegmental'gear portion-39: for engagement with rack-40 on sliding table 41 mounted on a trackwa'y com-- posedfof members42 and 48 (seeFig-xQ).

to side of portion 11.

Shaft 28 is mounted in bearings and 46 secured to stand 11 of the framework of the machine.

Sliding table 41 has a portion 50 secured.

on the upper side thereof by means of stud bolts 51. This member 50 projects upwardly and has the horizontally projecting portion 53 and the downwardly projecting portion 54, the portion 53 having the threaded bolt 55 with hand wheel 56 thereon and being threadably mountedyin the portion 53 and having on the lower end thereof (see Fig. 10)

an enlargement 60 having a groove 61 therein for the reception of clamping member 62, said portion 60 having a lower-enlargement 63 fitting into a groove 64 in saidclamp member 62,"the lowercdge of this clamp member 62 being sharpened to grip the upper edges of the pieces of material placed into the clamping device. 7 V

The upwardly projecting portion of member50 has two projections (seeFig. 2) indicated by reference characters 65 and 66 having stud bolts 67. and 68, respectively, mounted therein which are adapted to engage the 'upper edge of a board 68 adapted to remain at all times in the clamp and tolbe sawed off at the first sawing operation of a bunch of pieces of wood in the clamp to form a suplport'for the other pieces of wood to be sawed and to prevent the rearmost wood from .hav ing imparted there-to a roughened edge due to'engagement with the saw and cutter head.

Also mounted'on sliding table 41is another clamping member indicated more clearly in Figure 6, comprising a base plate 70 secured on table 41 by any suitable means such as stud bolts 71 and from this portion 70, upwardly projecting portions 72 and 73 are provided and integral with portions 72 and 73 and spanning the distance therebetween is the hollow portion 7 4 having slidably mounted therein screw threaded member 76 having the squared enlargement '77 thereon for guiding the same and preventing turnmg movement. On the exterior of said member 7 6 is provideda bevel gear 7 8 which is threadably mounted on the threads 7 9 of member 76, and the end of member 76 has loosely secured thereon clamping member 80 having the serrated or roughened face 81 for engage ing the sides of pieces of material heldin the By referring again to Figure 7 it is seen that sliding member 23 also has keyed thereon a' portion. 90 of a clutch mechanism, said portion 90 having a cavity 91 therein for reception of the sloping cone-shaped face of member 92 forming the other portion of the clutch which member is keyed for sliding movement on shaft 24 by means of key-way 93 and is adapted to slide on shaft 24 but to rotate therewith at all times. Secured on shaft 24 is a end 94' having a compression spring 95 between said cuff and said memher 92 for normally forcing the cone-shaped end is secured to. a connecting rod 102 by means of a bolt 103, said connecting rod 102 being connected to an arm 104 (see Figs. 1 and 2) mounted on vertically disposed rotatable shaft 105. Shaft 105 is mounted in bearings 106 and 107, at its lower and upper ends respectively, and also has an arm 108 thereon adapted to engage upwardly projecting portion 109 of foot lever'110 secured in bracket 111 on base plate 10. By referring to Figure 3, it is seen that the upper end of shaft 105 has secured thereon a lever 115 and on said lever is pivotally mounted another lever 116 which lever is normally pulled to the position shown by tension spring 117 and is adapted to engage aprojection 118,0n the side of table 41.

With the carriage 41 in'position for the material in the vises being disposed between the cutter 127' and the saw 14 and the machine started, operator will seize lever 116 pivotally mounted on lever 115 and move its forward end outof the path ofprojection 118 on the carriage. When the carriage travels to the left in Figure 3 until projection .118 passes the forward end of lever 116, the

operator will relieve lever 116 and the carriage will move the material in the vises past the saw and the carriage will then reverse its direction of travel andwill slip past end of lever 116 without affecting lever 115. \Vhen the carriage has moved all the way to the right in Figure 3 and has reversed its travel and moved'back to the position shown in Figure 8, projection 118 will strike the forward end of lever, 116 and thiswill move lever 116 to the'left in Figure 3 and will move lever 115 which will turn shaft 105, and arm 104 will pull connecting rod 102 to disengage the clutch portion 92 from portion 90 and the driving connection to the carriage 41 will be disconnected from sleeve 23.

"material forming the tongues and grooves emma? for joining the pieces of material together; On the lower side of the upper portion. 12. and at one side thereof is secured an. electric motor-125 whose shaft 126 projects upwardly 7 thru the upper portion of. the machine; indicated by 12. and has thereon acutter head. 127

which has a plurality of knives 128 mounted therein, and these knives have a iluralikty of teeth 129 closely related toeach other similar to the teeth of a circular saw but of apeculiar' formation to cut a groove asshown in Figure.

10. These cutters 128 are secured in the cutter head: 127 by any suitable means.

Power'is supplied to the two electric motors by any suitableform of electric conductor, not shown, which passes into the machine and thru switch 146 and a cable 1&1 leads thru a box 142,. and from box 142 a cable 143 is led into motor 125., and a suit able cable 145- leads from the other side of box 142- from that shown. in Figure 1 and goes to motor 13 so that both motors will start and stop at the same time;

In order that the tongues 1 fittinginto grooves 151 may be such. as to cause the edges of proximate pieces to be in alinement, a suitableblock, not shown, may be. placed beneath alternate sets of pieces grooved, so that one piece taken from one set of blocks will fit with a piece taken from another set to form a straight edge when the two pieces are secured together at their ends.

In Figures 11 to 13 inclusive, I show a different form of holding means for the boards and instead of having clamp mem bers 50 and for operating the clamping members 162 and 80, I have an inverted U- shaped bracket 160 secured to table 41 and a cooperating bracket 161, bracket 160 having an upwardly projecting leg 162 and between member 161 and 162 a cylinder 163 is provided having a piston 164 therein with a connecting rod 165 on which a clamping member is mounted.

On top of U-shaped member is mounted a cylinder by means of bolts 166 and a cap plate 167, and a piston 168 is mounted in cylinder 165 and has a connecting rod 169 whose outer end is secured to knife clamp 62. Also on table 41 I secure a valve 170 which has an air supply pipe 171 leading thereto which is connected to a suitable source of compressed air-not shownby any suitable means such as a rubber hose, not shown. This valve 17 0 has mounted therein a rotor 172 havlng cavities 173 and 174 therein and pipes 175 and 176 are connected to said valve housing and communicate with the interior thereof. An exhaust port 178 is provided in said valve housing 170. Pipe 175 is connected to the remote end of cylinders 165 and 163 and in the position shown in Figure 13, compressed air is admitted to the said cylinders to force the clamps 62 and 80 into clamping position.

When the clamps are moved to clamping position air is allowed to escape from in tron-t of pistons: 164 and. 168 thru. pipe 17 6 which is connected to the-other ends of said 'cylin-' ders. This air escapes thru port 178 with the said istons is allowed-.to esca 3e thru oi: e176 P l P out thru port 17 8 as shown Figure 13.:

In the drawings and specification, there has been set forth a preferred embodiment of the invention and although specific terms are employed, they are used'in a generic and descriptivesense only and not for purposes of'liniitation, the scope of the invention being, set forth in the appendedclaims.

I claim:

1. In a woodworking machine, for forming tenons in the ends of a pluralityof pieces of wood and similar material, 'a'cut-off saw, a cutter head for forming grooves and tenons in the ends of said pieces, a carriage, means for clamping the pieces in position in said carriage, means for moving the carriage in:

saw, means for reversing the direction of travel of the carriage to feed the material againpast the saw and pastthecutter head,

one direction for feeding the pieces past the means for again reversing. the travel of the I carriage to feed the material back by the cutter head and; back toward the: saw and means-.forautomat-ically stopping the feeding mea-nsbefore the pieces again reach the saw 2. In a woodworking machine for forming: a plurality oftransversegrooves 1n the ends w of pieces-of material, a framework, a slidable table mounted ontop of said framework,

clamping means onsaidtable for said pieces,- a motor driven saw on said. framework, a

motor driven cutter head on said framework, .1 i311? meansfor moving: the table back and forth on said framework to-first present the pieces tothe saw and: reversing. the travel, of: the

table to present the pieces to the cutter head and then reversing the travel of the table to:

move the pieces again past the cutter head and means for automatically stopping; the table before the material again reachesthe 3. In a machine for forming grooves in the ends of arplurality of blocks of material,

a cut-off saw, a cutter head for. cutting:

towardssaid cutter head for forming grooves:

in theends of said'blocks,.means foragain' and towards said saw, and means for automatically stopping the table when it has reached a given point between the cutter head and the saw. V a

4. In a machine for forming grooves in the ends of a pluralityofblocks of material, a cut-off saw, a cutter head for cutting grooves in the ends of said blocks, a slidable table, means on the table for clamping'said blocks of wood in position, means for moving said table past said saw to saw off a portion of the ends of said blocks, means for reversing the directionof travel of said table to move the blocks again past said. saw and towards said cutter head for forming grooves in the ends of said blocks, means for again reversing the direction of travel of said table to move the-blocks again past said cutter head, and means for automatically stopping the table when it has reached a given poin between the cutter head and the saw.

5. In a machine for cutting-grooves in the ends of pieces of wood whereby the same may be joined together, a framework, a table slidably mounted on said framework, a plurality of means for clamping a plurality of pieces of wood on said table, a cut-off saw, a cutter head having teeth therein for forming grooves in the ends of the pieces of wood, means for reciprocation of said table to cause the pieces to pass the saw, means for reversing the travel ofthe table to move the ieces a ain ast said saw into en a ement with the cutter head to cut the grooves in the pieces of wood, means for again reversing the travel of the table to cause it to move the pieces of wood again past the cutter head and toward the saw, and means for automatically arresting the travel of the table before-the pieces again reach the saw.

-6. A wood worl-ng machine having in combination a cut-off saw and a grooveforming cutter head spaced from each other, a slidable table disposed on one side of said saw and cutter, means for securing piecesof wood on said table and means for moving the table to present the wood to the saw present the pieces to the cutter and then reversing the travel of the table to move the pieces again past the cutter and to move the pieces again toward the saw.

saw, a groove-forming cutter head, a table slidable past the saw and cutter head, a plurality of clamps mounted on said table adapted to receive pieces of wood, means for moving the table first by the saw, then reversing the direction 'of the travel of the table to move it by the cutter head, and then again reversing the direction of travel of the table to again move it towards the saw, and means for automatically stopping the 7. In a. wood workingmachine, a cut-off I travel of the table before the pieces of wood areagain presented to the saw.

8. In a woodworking machine for forming tenons in the ends of suitable stock, a framework, a carriage mounted for sliding movement along said framework, a cut-off saw mounted on said framework and having a' horizontally disposed axis, a tenon-forming cutter head mountedin-said framework and having a vertically disposed axis, a rack disposed on the lower surface of said car.- riage, a reciprocating quadrant meshing with said rack, means forclamping said stock in said carriage, means forv reciprocating said quadrant to cause the carriage 'tomove the stock past the saw, then reversing the direction of travel of the carriage to move the stock again past the saw and to move the stock past the cutter head to form tenons in the end of the stock and to'then reverse the travel-of the carriage to move the'stock again past the cutter head and towards said saw, and means for automatically stopping the travel of the carriage before the stock is again presented to said sawQ In testimonywhereof I affix my signature.

- 1 CHARLES F. VANCE.

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