US1126292A - Veneer jointing and taping machine. - Google Patents

Description

H. RUNNE. VENEER JOINTING'AND TAPING MACHINE.

APYLIOATIOK FILED JULY 25, 1912. RENEWED JUNE 19, 1914 1 126,292.

Patented 38 11. 26, 1915.

5 SHEEN-SHEET 1.

H. BUNNE.

VENEER JQINTING AND TAPING MACHINE.

APPLIOATIOH FILED JULY 25, 1912. RENEWED JUNE 19, 1914.

Patenmd Jan. 26, 1915.

5 SHEBTSSHEET 2.

Hi. BUNNE.

VENEER JOINTING AND TAPING MACHINE.

APPLIOA'TIOH LILED JULY 25, 1912. RENEWED mm: 19, 1914.

Patented Jan. 26, 1915.

5 SHEETS-SHEET 3.

p XINMQ WNW.

Patented Ja11.26,1915.

5 SHEETS-SHEET 4.

H. RUNNB.

VENEER JOINTING AND TAPiNG MACHINE.

APPLICATION FILED JULY 25, 1912. RENEWED JUNE 19, 1914.

1,126,29Q Patented; 33 11. 26, 1915. 5 snms snn 'r s.

W V Jws'awm o UNITED STATES PATENT orrrou.

HENRY BUNNE, OF BROGKPQRT, NEW YORK.

. VENEER JOINTING AND TAPING MACHINE.

Specification of Letters Patent.

- Patented J an. 26, 1915.,

Application filed July 25, 1912, Serial No. 711,479. Renewed June 19, 1914. Serial No. 846,199.

To all'whom it me concern:

Be it known 1:

V 'Brockport, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Veneer Jointing and Taping Machines;'and I do i j I hereby declare the following to be a full,

clear, and exact description of the same, refcrence being had to the accompanying drawings, forming a part of this specification, and't'o the reference-numerals marked theren On; I

My present invention has for its object to provide a' machine for jointing edge to edge two or more strips of veneer, during their longitudinal movement along a suit- 'able table or support, and it has for its further object the continuous applicationof a' binding tape to the joint which will hold the parts perfectly united until they have been applied to the backing on which they even- I tually form the finished surface.

To these and other ends the invention consi'sts in certain improvements and combinations of parts, all as Wlll be heremafter more fully described, the novel features being pointed out in the claims at the end of the specification.

In the drawings, Figure 1 is a side elevation of a machine constructed in accordance with my inventlon showin one embodiment Lthiareof; Fig; 2 is a top p an view thereof;

Fig. 3 is a vertical sectional view taken on the line 3-3 of Fig. 2; Fig. 4 is a transverse sectional View taken'on the line a P of Fig. 3'; Fig. 5 is a detail horizontal sec- 1 :tion'alv'iew illustrating the mounting of the feed rollers, taken on the line 5 5 of Fig.- 4; Fig. 6 is a detail view of the discharge rollers, taken on the line '6 6" of Fig. 1, and Fig. 7 is a detail illustration showingthe m'o'unting of one of the feed rollers, said view being taken on the line 7 '7 x of Fig. l. Similar reference numerals throughout the several figures indicate the same parts.

"The machine illustrated to show one embodiment of my invention, comprises generally a table or support upon which the strips of veneer may be positioned and provided with feeding mechanism which will advance said strips along the table and during their lengthwise movements will bring at I, HENRY RUNrTE, of

end of the machine is provided a pair of discharge rollers which may be actuated by the operator to withdraw the sets of united veneer sheets after-they have left the feeding mechanism at a more rapid rate of travel, permitting them to be taken away from the machine and stacked by the operator while the next pair of strips is being advanced by the feeding mechanism.

The table or support 1 is mounted upon any suitable form of frame work, such as the uprights or table legs 2 which are connected at their lower ends by a rail 3. At about the center of the table and extending transversely thereof, are rollers 4i and 5, the

upper edges of which project slightly above.

the level of the table top and cooperate with the feeding and pressing rolls. ilhe feeding ,rolls' being those coiiperating with the roll 4 and the pressing roll being the one indicated by 6 which bears against the roll 5, all of which are carried in suitable bearings.

Extending across the top cf the machine, is a framework supporting the feeding rolls, comprising the vertical standards 7 and the cross bar 8 on the forward edge of which. at the center of the table, are mounted two pairs of feeding rolls bearing against the roller 4. One pair of these rolls indicated by 9,

is disposed centrally of the table and each of them is set with its axis at an angle to the other and at angle to the agms of the underlying feed roller 4. These rolls being also positioned at'opposite sides of the hen ter line of feed whereby each operates upon a difi eren't strip of veneer, they will more said'strip's lally toward each other. The

other pair of rollers indicated by W are disposed one on each side of the first mentioned pair and are adjustable, These pairs of rollers are shown in detail in Figs. 3, 4.- and 5. The rolls 9 preferably maintain a given angular position to the direction of movement of the work pieces, each of said rolls being carried in a yoke piece 11 on a vertical bearing pin 12 (Fig. 5) restin in an aperture in'the upright front portion 13 of the cross piece support 8 and against whi h bears a coil spring 14:. The desired angularity or convergence of the rollers 9 is maintained by connecting the yoke 11 by two fastening members 15 and 16, having angular faces, as shown in Fig. 5, and fitted to the sides of said yokes, to which they are 15 also'secured by bolts 17. The other rollers .10 are each carried in yokes 18 on studs 19 projecting upwardly into bearingapertures in side pieces 20, containing coil springs 21., the tension of which may be adjusted by screws 22. Extending laterally from the yokes 18 are short projections 23, pivotally connected to adjusting arms 24, carried on screws 25, extending upwardly through the frame piece 8 and movable in one direction 0 or the other in slots 26 (Fig. 2) for the pur- :pose of rotating the yoke18 in one direction or the other relatively to the movement of the veneer strips. The tape feeding and applying mechanism is also carried on the cross frame or member 8 and is so arranged as to enable the tape to be applied continuously to the veneer strips as these are brought together by the-pairs of feeding rolls 9-9 and 1010. On the'front of the frame piece 8 and extending downwardly between and slightly ahead of the diagonally disposed rollers 9-9 is a sprin operated rubbin finger 27, having the lower narrow roun ed end 28 adapted to rest against the veneer sheets, and at its upper end, where its width is increased, it is ro- 'vided with the parallel side edges 29, which are guided between the forwardlyextending ears or'projections 30 -30, on the forward clampin stri 15, which latter, it' will :be remembers is ascribed as being carried onthe yokes '11 of the rollers 99. The lateral edges of therubbing fingers'serve as shoulders against which leaf springs 31' engage to normally force it downwardly. On the face' of the rubbing fing vided adjustable guides 32, held in position by the thumb screws 33 by means of which said guides may beadjusted relatively to the center line of the finger to accommodate -.bindin tapes of different widths.-

Bin 'ng strips which I deem it preferable to use are made of stout aper having a gummed surface but it being understood that an ungummed strip of paper or fabric to which glue or paste is applied from a suitable receptacle may also be used. However when a gummed strip is employed it is merely necessary to moisten the latter and the required quantity of water for this purapparatus for accomplishing this purpose,

or are also propose may be supplied from a suitable receptacle indicated by 34-, having liquid supply rolls 35, 36 and 37, although it will be understood of course, that other forms of may be employed. The strip of tape is supplied from the roll 38 and in the present instance is shown as passing over the idlers 39, 40 and 41.

The advance movement of the work pieces or veneer strips is caused by the feed rollers 4, 9 and 10 and 5 and 6. The rollers -land 5. are positively driven, while the roller 6 which is a pressure roller is carried in bear.- ings, which are moved downwardly by coil springs 42. On the rear side of the machine the roller 5 is provided with the driving pulley 5 carrying the belt 5 which is driven from a pulley on the shaft 43. The feeding'roll 4 is driven from the roll 5 by 35 a belt 5. Another feeding roll is also provided to bear upon the top of the veneer strip and to assist in pressing the tape into intimate contact with the veneers after they leave the aforedescribed rolls. This pressing on and feeding roll, shown articularly, in Figs-2 and 3 and indicated by 44 is felt covered and provided with a sand surface which will afi'ord suflicient traction to en-- able'the veneer strips to be advanced alongv e5 the table after their ends leave the feed rolls 5 and 6. This roll 44 is carried onthe shaft 45 driven by a belt 45' from a pulley on the roll 4.

When it. is desired .to. rotate the pulley 5 and im art movement to the feed roll, the belt 5 15 tightened by bringing into contact with its lower stretch, the tightener pulley 5, held on the pivoted arm 46 which may be raised and lowered by a cam 47, rotated in any convenient manner, as by means of a lever 48. The pressing of the gummed strip into engagement with the veneer strips-vie also facilitated by a pressure roll 49 arranged directly in rear of the roller 6 which is operated downwardly by a spring 50 engaging the vertically movable framework in which said roll is placed.

At the rear end of the machine is a pair of rollers 51 and 52, the former bein stationarily supported in bearings 53 an earrying a pulley 54, driven by the belt 54 which also passes over a pulley 55 arranged concentrically to the pulley 5. The other roller 52 is mounted in bearings 52 which are guided for vertical movement 'on the rear uprights or legs 2 of the frame and adapted to be operated toward and from the roller 51 by a lever 56, pivoted at 57 and operated by a rod 59 which in turn is connected to the treadle 60. Ooiiperating with the latch 59 is a lock 61 having a shoulder engaging over the top of the treadle when the latter is depressed. Movement of the treadle in a downward direction will'permit it to be no locked bythe latch or awl 61 at which time the roller 52 is in an e evated position, forcing the veneer strips against the roller 51.

It will be'observed from the relative sizes and 6.

In order to facilitate assembling the work pieces and bringing them into juxtaposition centrally upon the table in proper relationship to the feeding rolls 99 and 10-10, 1

insert in the center of the table top two or" more blades such as are indicated by 62,

- which are preferably made of thin sheet metal, their opposite sides serving as guides for the edges of two veneer sheets and permitting them to be brought closely together.

The thin sheets of veneer are usually warped and twisted and for this reason their outer edges frequently have a tendency to curl after their meeting edges have been secured by the tape, and for this reason ll provide at the rear end of the machine over- I lying cover plates or guards 63, which hold the outer edges of the strips, or work pieces in proximity to the top of the table after they have passed between the pressing rolls 5 and 6, thus preventing said edges from curling upwardly and engaging other parts of the machine, such as the shaft bearing the feed roller 44.

In the operation of the machine, the binding strip is first positioned as shown in Fig. 3, its lower end, after passing over the various idlers and the moistening roll-37, ex-

tending beneath the rounded end 28 of the pressing finger 27. The meeting edges of the veneer strips which are to be jointed, are first made true and straight by passing them in engagement with the cutter of a jointer or other suitable machine. Two sheets of veneer thus prepared are then placed on the table at opposite sides of the center guides 62, their forward adjacent v corners being brought closely together and held in this position by the operator while I they are advanced forwardly into engagement with the roller 4 and the pairs of roll ers 99 and 10-10. The guide 62 located nearest the pressing finger is arranged at such a distance in rear thereof that the thin veneersmay easily be fed laterally by the diagonal rolls 99 and brought into intimate contact at the point where the tape is applied to the joint. Other guiding means than the blades 62 might be used or these might be omitted entirely, but I consider it an advantage to separate the rear ends of the veneer stri s slightly, as the o erator is thus able to o serve the action 0 the feed rolls and regulate pressure between the meeting edges of the veneer strips more easily and accurately than can be done when the two strips are put into the machine with their edges meeting throughout their length. The angularity of the rollers 9-9 is preferably fixed and when arranged about as shown in Figs. 4 and 5 they will automati-' cally makeva close joint between two pieces of veneer .when these are handled in the manner described. When it is found that it is desirable to efiect a greater lateral movement of the sheets, this may be accomplished by the adjustment of one or both of the rollers 10-10, the pressure of which may be regulated by the screws 22 and their angularity changed by the movement of the screw 25 and the slot 26 causing the arms 24 and 24 to rotate the yokes 18 in one direction or the other to guide the sheet as a whole inwardly or outwardly relatively to the central line of travel.

I claim as my invention:

1. In a veneer jointing machine, the combination with a support, of an underlying feed roller and two separate pairs of rolls cooperating with said roller, the innermost rolls of each pair being set upon axes ar ranged at an angle to the axis of the underlying roller and the outermost rollers of said pairs being mounted independently of the inner rolls so that their axesmay be shifted relatively to the axis of said underlying roller, and means for applying a binding strip to work pieces inserted between the feed roller and said rolls.

2. In a veneer jointing machine, the combination with a work table or support, of a feed roller arranged at one side of the plane of said table and two pairs of rolls cotiperating therewith and located at the other side of said plane, one of each pair of said rolls being arranged on a fixed axis the as posed at an angle to the feed roller and the other one of each of said pairs being mounted so that its axis may be adjusted at a desired angle to the feed roller and means for applying to work pieces passed between said 1 tea a support arranged above the table, of two angularly disposed rolls cotiperating with i the feed roller, said rolls being disposed centrally and spaced apart, two other rolls arranged at each side of and mounted inclependently of those'first mentioned and also cooperating with the feed roller and ad justably mounted on the bridge piece and a pressing finger yieldingly engaging veneer strips when placed with their meeting edges between the angularly disposed rolls.

4. In a veneer j ointlng machine, the comconverging the other being carried in yokes',

pins on. the latter jburnaled insaid support, an& adjustable connectiori's between saifi HENRY RUNNE Witnesses;

G. W. Kmrmrm; S. R. SNOFGK.

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