US1022092A - Veneer-taping machine. - Google Patents

Description

W. J. KELLY. VENEER TAPING MACHINE. APPLICATION Minn 001212, 1909.

Patented Apr. 2, 1912.

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VENEER TAPING MACHINE. APPLICATION FILED 00112, 1909.

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VENEER TAPING MAGHINB.

APPLICATION FILED 00112, 1909.

Patented Apr. 2, 1912.

3 BHEBTSSHEET 3.

COLUMBIA PLANOGIAPH co., WASHING-rd". n. c.

WILLIAM J. KELLY, OF CLINTON, IOWA.

VENEER-TAPING MACHINE.

Specification of Letters Patent.

Application filed October 12, 1909.

Patented Apr. 2, 1912.

Serial No. 522,331.

To all whom it may concern.

Be it known that I, XVILLIAM J. KELLY, a citizen of the United States, residing at Clinton, in the county of Clinton and State of Iowa, have invented a new and useful Improvement in Veneer-Taping Machines, of which the following is a specification.

My invention relates to improvements in machines for edgewise-uniting strips of veneer to form it into sheets thereof to be used in the making of furniture and other cabinet work. The operation of so uniting strips of veneer involves the passing of the strips to be united, and while in edgewise abutting condition, through a machine which applies a strip of adhesive tape to one side of the strips to span the joint between them and thus unites them and forms a sheet of veneer. This sheet with the tape adhering to it is then glued to the object to be veneered, and subsequently the tape removed and the exposed surface of the veneer sanded and polished as desired. It is well understood in the art that in order to produce a high quality of veneer it is necessary that the joint between the strips composing it be rendered as invisible as possible, as defective joints mar the appearance of the veneer.

One of my objects is to provide improvements in machines of this type to the end of insuring perfect joints between the strips; and other objects are to provide a simple construction of machine which when operating on the strips of veneer will not mar the surface thereof which is exposed to view when applied to the object to be veneered, thus rendering sanding of the veneer for removing roller marks unnecessary; and generally to so improve on machines as hitherto constructed as to render them more effective for performing their functions.

Referring to the accompanying drawings-Figure 1 is a view in end elevation of a machine constructed in accordance with my invention, showing strips of veneer in the machine. Fig. 2 is a section taken at the line 2 on Fig. 3 and viewed in the direction of the arrow. Fig. 3 is a view in front elevation of the machine. Fig. 4 is a plan view, partly sectional, of the machine; and Fig. 5, a broken view in front elevation of one of the two pairs of similar inclinedlydisposed rollers and cooperating roller for feeding the strips of veneer, shown in section. through the machine.

The frame of the machine comprises a series of legs or uprights (3 braced by crossmembers 7 and S and supporting a table 9 and upright end-members 1.0. The table 9 is preferably formed of a plurality of sections 11, 12, 13, 1 1- and 15, the sections 11 being arranged on opposite sides of the center line of the machine and spaced apart, and the other sections, of metal, fitting in the space between the sections 11 and being spaced apart as represented, primarily for the purpose of economy in constructing the machine and rendering the sections insulated from each other to permit the heat from one of the sections, heated as hereinafter described, from being communicated to the others.

The members 10 contain alining vertically-elongated slots 16 into which the reduced ends 17 of beams 18 arranged transversely of the table 9, extend, each of these beams 18 toward its ends and on opposite sides of the center line of the machine carrying depending brackets 19 and 20, respectively. In the brackets on each of the two beams 18 at the front end of the machine are journaled shafts 21. and 22 which converge toward each other in the horizontal plane from front to rear as represented. Each of the two front shafts 21 and 22 carries atits inner end a pair of corrugated rollers 23, and each of the two rear shafts 21 and 22 carries similar rollers 23, these rollers being spaced a slight distance apart and arranged on opposite sides of the center line of the table, as represented in Fig. 4. The brackets on the rear one of the beams 18 form journals for a rotary shaft 24 carrying a corrugated roller 25 registering with the center line of the table and in a direct line with the joint between the strips of veneer to be operated on. All of the shafts 21, 22 and 24. are positively driven by any suitable means, as for instance by power applied to a pulley 26 on the shaft 21 and communicated to the other shafts by chains 27 and 28 engaging with sprockets 29, 30 and 31 on the respective shafts.

Cooperating with each set of rollers as hereinbefore described on the shafts 21 and 22 is a roller 32, each fixed, below the table 9, on a shaft 33 journaled in the frame, the rollers 32 being located directly beneath their cooperating rollers 23 and extending through the spaces between the table-sections 12, 13 and 14 into a position flush with the upper surfaces of the latter. The roller 25 cotiperates with a roller 25 fixed on a shaft 25 and extending through a slot 12 in the table section 12, as represented in Fig. 2.

Journaled centrally of the machine and below the table is a flanged spool 34 on which the tape 35 to be applied to the strips of veneer is wound. The free end of this tape extends upwardly passing in front of a guide-loop 36 secured to the wall of a receptacle 37 located beneath the table at the front end of the machine, and through a slot 38 in the table and beneath a spring presser-foot 39 secured to a bracket 40 on the front one ofthe beams 18.

In the construction illustrated it is intended that the tape 35 be of the adhesive variety coated with glue or the like, and thus I provide means for applying moisture to the tape before it passes through the table, these means comprising the receptacle 37 for receiving Water, and a piece, or strip, 41 of wicking, or any other suitable material, immersed at one end in the water in the receptacle 37 and extending at its other end through a slot 42 in the wall of this receptacle and into the path of movement of the tape 35 for moistening the glue thereon.

The operation of the machine is as follows: The strips of Veneer, such as those represented at 43, to be edge-wise united and the edges of which are preparatorily trued, as well understood in the art, are laid flatwise on the section 14 of the table with their edges abutting and the joint between them registering with the center line of the table, as clearly indicated in Fig. 4. In this condition they may then be pushed underneath the presser-foot 39 and between the front set of positively-driven rollers 23 and their coiiperating roller 32, with the result of causing these rollers to grip the strips 43 and feed them into engagement with the rear set of rollers 23 and their coiiperating roller 32, and thence into engagement with the rollers 25 and 25 which eject the strips from the machine. The tape 35, with its glued side exposed, lying beneath the presser-foot 39 and registering with the center line of the table, adheres to the under surface of the strips of veneer introduced under the presser-foot and covers the joint between them. As the strips of veneer move through the machine as described, the tape is drawn from the spool 34 and applied to the strips. As a means for severing the tape at the point desired I provide a vertically reciprocable cutter 44 slidably mounted on the bracket 10 in the rear of the presser-foot and immediately above the path of movement of the tape 35. The cutter is yieldingly supported in raised position by a spring 45 secured to the front beam 18 and engaging at its free end with a lug 46 on the cut-ter 44, the latter work ing through a slot 47 in the table and adapted to be operated by pressing down wardly against its head 48 against the ac tion of the spring 45 after the strips of -veneer have passed rearwardly beyond it,

the cutter-portion of the cutter in this operation severing the tape 35 below it. As soon as the strips of veneer pass the presserfoot 39 the latter springs downward to the position represented in dotted lines in Fig. 2 and holds the free end of the tape in position to be applied to other strips of veneer introduced into the machine. The two sets of rollers 23 in coijperating with their rollers 32, serve to grip the strips 43, feeding them through the machine and pressing the tape into close contact with the underside of these strips. By disposing the rollers 23 at an angle to each other as described, the strips of veneer with the tape applied are not only fed through the machine but are constantly forced toward each other int-o intimate edge-wise contact for producing a tight joint. In this condition the strips pass over the table-section 11, which is preferably heated, as by a steam-box 49 connected with a steam-supply and exhaust pipes 50 and 51, respectively, the heat serving to dry the glue on the tape sufiiciently to hold the strips in the intimate edgewise contact into which they are forced by the action of the rollers 23, as described.

The pressure exerted by the rollers 23 and 32 upon the strips of veneer may be regulated by means of thumb-screws 52 working through inwardly-extending plate-sections 53 carried by the end members 10 and bearing against the ends of the beams 18, this feature of construction further serving to permit the desired pressure to be applied regardless of the thickness of the veneer. In applying the veneer to the object to be veneered, it is the practice to glue that side of the sheet of'veneer which is unprovided with the tape, flatwise to the object, exposing the tape on its upper side, the top afterward being removed and the surface of the veneer finished as desired. It will thus be manifest that it is desirable that the side of the veneer to which the tape is applied be unmarred by marks or indentations, as such require extensive sanding when produced in the wood. By constructing the machine in accordance with my invention, the tape is applied to one face of the strips and the rollers which produce the indentations in the strips operate against the other side thereof, thus preventing the making of indentations in the veneer on the side which is to be exposed on the veneered object and overcoming the objection hereinbefore referred to.

Another advantage produced by constructing the machine to cause the corrugated rollers 23 to operate against the sides of the veneer opposed to the taped sides thereof, is that of producing the indentations in the faces of strips to which the glue is applied when the veneer strips are glued to the object to be veneered, the glue entering these indentations and thus, by the an chorage thus created, insuring the desired adhesion of the veneer to the object veneered.

\Vhile I have illustrated and described the machine as employing preparatorily glued tape requiring moistening only for n'iaking it adhesive for use, it will be manifest that unglued tape may be used and means, well known in the art, may be employed for applying the glue to it before it contacts with the strips of veneer; or tape which is rendered adhesive by heating may be employed.

Vhat I claim as new and desire to secure by Letters Patent is 1. In a veneer-taping machine, cooperating feed-rollers between which the strips of veneer are introduced, the rollers bearing against one side of the strips operating against their marginal portions and being constructed and arranged to force both of the strips toward each other with equal, or substantially equal, force into intimate edgewise contact, for the purpose set forth.

2. In a veneer-taping machine, cooperating feed-rollers between which the strips of veneer are introduced, the rollers bearing against one side of the strips being disposed on opposite sides of the joint between the latter and operating against their adjacent marginal portions and having their axes converging toward the line of feed of the strips through the machine, for the purpose set forth.

3. In a veneer-taping machine, a pair of feed-rollers and a third roller spaced apart and adapted to feed strips of veneer through the machine, the rollers of said pair being disposed on opposite sides of the joint between said strips and operating against the marginal portions of the latter, with the axes of said pair of rollers converging toward the line of feed of the strips through the machine, for the purpose set forth.

4. In a veneer-taping machine, means for feeding the strips of veneer through the machine comprising, in combination, a pair of positively-driven feed-rollers, and a third roller cooperating therewith, said pair of rollers engaging with the untaped side of the strips and extending into the space between the vertical planes of the ends of said third roller, and said third roller engaging only with the tape applied to said strips, whereby said pair of rollers and said third roller engage the work at opposite sides thereof in the same vertical plane, and the taped surfaces of the strips are unmarred in passing through the machine.

5. In a veneer-taping machine, the combination with a table, of means for feeding the strips of veneer through the machine comprising, in combination, a roller journaled to extend through said table, and a pair of positively-driven feed-rollers located above said third roller, said pair of rollers engaging with the untaped side of said strips and extending into the space between the vertical planes of the ends of said third roller, and said third roller engaging only with the tape applied to said strips, whereby the upper and lower rollers engage the strips at opposite sides thereof in the same vertical plane, and the taped surfaces of the strips are unmarred in passing through the machine.

6. In a veneer-taping machine, means for feeding the strips through the machine comprising a roller, and a pair of positivelydriven feed-rollers located above said roller and cooperating therewith, said pair of rollers engaging with the untaped sides of the strips and extending into the space between the vertical planes of the ends of said third roller, and said third roller engaging only with the tape applied to said strips,whereby the upper and lower rollers engage the strips at opposite sides thereof in the same vertical plane, and the taped surfaces of the strips are unmarred in passing through the machine, and a supply of tape from which tape is applied to the undersides of the strips, for the purpose set forth.

7. In a veneer-taping machine, the combination of a table, means for feeding strips of veneer along said table, means for applying tape to the undersides of the strips to span the joint between them, said feeding means being so located as to cause the taped strips to he moved in contact with the table at its rear end, and means for heating the rear end of said table, for the purpose set forth.

8. In a veneer-taping machine, the combination of a table formed of metal sections insulated from each other, means located in front of the rear section of said table for feeding the strips of veneer through the machine, means for applying tape to the undersides of said strips to span the joint between them. and means for heating the table section beyond said feeding means, for the purpose set forth.

9. In a veneer-taping machine, the combination of a frame, a table, a roller journaled on the machine to extend through said table, a beam adjustably supported on the frame and extending transversely of said table, a pair of positively-driven rollers supported on said beam and cooperating with said roller for feeding strips of veneer through the machine, and a supply of tape from which tape is applied to the strips of veneer to be taped.

10. In a veneer-taping machine, the combination of a frame, a table, a pair of rollers &

j ournaled on the machine to extend through said table and engage with the tape on the strips of veneer, cross-members supported on said frame, and pairs of positively-driven rollers supported on said cross-members with the axes of the rollers of each pair converging in the direction of travel of the strips of veneer in passing through the machine, and engage with the untaped surfaces of said strips at their adjacent side portions, said pairs of rollers cooperating with said firstnamed rollers for feeding the strips through the machine.

11. In a veneer-taping machine, means for feeding the strips through the'machine comprising, in combination, a pair of positively driven feed-rollers disposed on the opposite sides of the joint between said strips and having their axes converging in the line of travel of the strips and adapted to engage with the untaped sides at their adjacent marginal portions, and a third roller cooperating therewith and spanning the space between them, said third roller contacting only with the tape applied to the strips of Veneer.

WVILLIAM J. KELLY. In presence of J. E. OoNDoN, P. H. KELLY.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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