US1913022A

US1913022A - Tape gluing machine

Info

Publication number: US1913022A
Application number: US341203A
Authority: US
Inventors: Alfred A Dennis
Original assignee: Individual
Current assignee: Individual
Priority date: 1929-02-19
Filing date: 1929-02-19
Publication date: 1933-06-06
Anticipated expiration: 1950-06-06

Description

June 6, 1933. A D N s 1,913,022

TAPE GLUING MACHINE Filed Feb. 19, 1929 2 Sheets-Sheet l June 6, 1933. A A, DENNIS 1,913,022

TAPE GLUING MACHINE Filed Feb. 19, 1929 2 Sheets-Sheet 2 v emu-e1 to veneer, and,

Patented June 6, 1933 PATENT OFFICE .ALIRED A. DENNIS, or GRAND nArIns, MICHIGAN m Gnome MACHINE Application filed. am- 19, 1929. Serial 116.341.203.

LThis invention relates to' a tape gluing machine for the purpose of applying glue t to a narrow tape which is used inconnecting "veneers together, the veneers being located in the same planewith edgesabutting and the tapeoverlappingthe joint andgluing to the veneers at both sides of said j oint: V t {The present invention is directed to a practical and serviceable machine which may be usedto apply the proper amount of glue to the tape when the tape isbeing applied to theweneers, or which can also be used in providing a preferred kind oftape for use for such purpose consisting oftwo very thin narrow lengths oftapematerial,

whichisusually paper, and gluing the same inseparably together to be afterward run through themachine in the process of applying the tape to the veneers.

The invention is fully described in the folloWingdescfiption"and illustrated in the accompanyingdrawings, in which, PFig. 1 is a vertical section through the tape gluing machine oflny invention! Fig. 2 is a transverse vertical section substantially on theplane of line22-of Fig.1.

Fig. is alike section substantially on the plane of line 33 of Fig. 1.. 1 r t i Fig, 4 is a side elevationofthe machine,

" the same being used in gluing two tape members together.

Fig. 5 isa similar side elevation illustratingthe use of the machine in applying tape Fig. 6 is a fragmentary side elevation of thenpper part of themachine enlarged to better illustrate the Construction. Like reference characters refer to like I parts in the different figures of the draw- The machine includes in its construction a' glue holding receptacle 1 which is designed to be placed above a heateijindicated at 2,

for maintaining the glue 3 which is held in the receptacle 1 in proper heatedcondition.

1 and'at one side extends beyond it, thereby providing an opening 7 for the passage of the tape from the machineafter the glue has been applied thereto. Within the housing 6 a gluing roller is located which, in practice,is made up of two'spaced apart disks 8 between which a suitable fabricrolle1"9,preferably of felt or cloth is positioned, the disks being connected to the ends and the felt being located around a central sleeve 10. This roller lies above and to one side of the transfer roller 4. by means of which glue is transferred from the receptacle 1.110 the felt 9.,

The gluing rolleris mounted for free rotation on a stud shaft 11, fromwhich it may be readily removeduvhen desired. A rod 12 is carried byone side of the casing on which an arm 13 ispivotally mounted at one end, the shaft 11 being connected to and extending laterally from the otherand free end of the arm 13. Thelower edge of the arm 13 is out at an angle asat 14 (see Fig. 3) and an adjusting screwlahaving a taperedinner end threads through a side of i the housing 6, the tapered end of the screw bearing against the inclined lower edge of the arm 13. The screw 15 carries a ratchet wheel 16 and an outwardly extending operatinghandle 17, by means of which it 8 may be turned, a spring 16a engaging with the ratchet wheel to hold the'screw in any position to which it may be adjusted.

t The housing 6, preferably, is made of two parts, as shown in Figs. 2 and3, one of the 0 same being hingedly mounted at 18 on a side of thereceptacle 1 sojthat it may be turned to uncover the gluing roller which may be removed from the shaft 11 at night during the time that the machine is not in operation. It is intended that the gluing roller,-when not in use shall be kept inn-- mersed in water, whereby the feltor fabric 9 will always contain a considerable amount r of waterso that the glue when applied to the outside is kept softand will not harden thereon. Also the water carrying felt or fabric 9 of the roller maybe used as a means of applying moisture to gummed tape which is used to alarge extent in veneer work and otherwise. By proper adjustment of the screw the gluing roller may be brought into more or less intimate engagement with the transfer roller 4, and the amount of glue transferred from the roller 4 to the gluing roller controlled in accordance with the extent of the contact of the gluing roller with the transfer roller, as is evident.

A curved slot 19 is cut in a side of the housing 6 thru which a curved shoe 20 of metal, lying over and spaced a short distance from the gluing roller, extends, an arm 21 formed integral with the shoe 20 passes through the slot 19 and is then turned substantially at right angles alongside of the housing 6, being mounted on a threaded stud 22 fixed to and projecting from said side of the housing, and receives a wing nut 22a whereby the shoe may be adjusted to different positions with respect to the gluing roller and firmly clamped in any position to which it has been adjusted. The slot 19 is covered by an are shaped guarding plate 23, having a slot through which the arm 21 passes, said plate also having .an arm 24 extending therefrom which is likewise mounted on the stud 22, previously described, as shown in Fig. 2.

A tape roll holding rack 25 is carried by a vertical post 26 which in turn is secured to the housing of the machine asshown in Figs. 4 and 5, the roll 27 carried by the holder thus beinglocated above the machine. The tape is carried over a guide roller 25am on the roll holder and thence downwardly around a suitable rod or other roller 28 located at the upper end and to one side of the glue receptacle 1, through a slot in the housing of the machine, as shown in Fig. 1, over the rod 12 and thence over the shoe 20. After it passes over the shoe 20 it is carried downwardly to the lower edge of the housing at one side of the opening 7, as shown in Fig. 1, one side of the paper contacting with the fabric 9 of the glue roller, as shown. The extent to which the paper will contact with the roller is governed by the position of shoe 20, it being evident thatby moving the shoe to the right (referring to Fig. 1) a greater contact of the paper with the glue roller will be had. Also in threading the paper through the machine the shoe may be adjusted far enough to one side that the tape will not contact with the roller during the process of threading. Preferably, the roll 27 of the paper tape is acted upon by a pivotally mounted retarding device 29 which is gravlty operated by a weight 30 to hold the paper against aimless unwinding and to apply a suitable tension thereon which keeps the paper sufliciently taut as it is passed through the machine.

The tape with the glue applied at one side leaves the machine and is carried directly to the veneers 31 which are passed over a table 32 between rollers 33, one of which is a driven roller, the tape lying between the upper roller and the upper side of the veneers. The tape covers the joint between the contacting edges of any two veneers and each side of the veneers some little distance beyond the joint. Ordinarily the tape is from of an inch to an inch in width and is firmly glued to the adjacent veneers holding them in close contact so that the same may be properly laid upon a core when they are to be used.

In the ordinary practice of laying and gluing veneers to a core, the same are laid with the tape side out. This method of laying veneers is open to objections in that after the veneers are laid and properly glued to the core the veneers must be finished on their outer sides to remove the tape which is thereafter of no use. The work of removing the tape and sanding and finishing the veneers is considerable. The most important objection, however, is that the moisture from the glue used in laying the veneers on the core, being absorbed by the veneers at the joint, swells the same and upon shrinkage thereafter the joint is liable to open a small amount which is very obj ectionable in the finished product. a

It has been found practical and necessary to use a paper tape, the paper being what is known as pound paper. If the veneers are laid with the paper inside, that is, between the core and the veneers to obviate the objection noted, it has been found that the paper will separate between its upper and lower sides, that is, will divide or split, whereupon at the joints the veneers are not securely connected to the core.

It is one object and purpose of my invention to utilize the machine described for making a tape which will obviate the several objections noted, and which may be used between the veneers and the core without the danger of splitting. In Fig. 4 the machine is shown as gluing the lower side of a length of tape 27 while a second length of tape 27a is carried on a second roll holder 25 mounted on the machine by a suitable horizontal support 34. The two rolls of tape 27 and 27a are in the same vertical plane and are fed between rollers 35, the upper of which is a driven roller, so that the upper tape 27 with glue applied thereto on its lower side is brought into immediate and intimate contact with the lower tape 27a and the two thus glued together rolled into a roll 36'.

The rollers 35 preferably are both knurled at their outer surfaces and are pressed toward each other with considerable force so that the glue penetrates the fibers of the paper and the knurls perforate the paper to a Considerable extent insuring a very intimate gluing engagement of the two lengths of pa per, while the perforations are very helpful when the tape is applied to the veneers in causin a better binding of the glue thereto. It is 0 course to be understood that between the rollers 35 and the finished roll 36 of tape a suitable drier for the tape may be interposed if it is necessary or desirable. Also in laying the tape on veneers, as indicated in Fig. 5, I have found it very desirable to direct air againstthe glued side of the tape. The air is projected from a nozzle 37 and the amount is controlled by a valve 38, it being evidentthat the glue may be more or less dried and thickened in accordance with the amount of air that is directed against it thereby compensating for different constituencies of glue used and variations in thick ness or body thereof. I have found that in this manner two rolls of very thin paper, known to the trade as 15 pound tissue kraft paper, may be used to provide a suitable tape for veneers and the roll 36 of tape impregnated with glue may then be laid between two adjoining veneers by use of the machine, as shown in Fig. 5, glued to the veneers, and that veneers glued together witha two ply glued tape of the character described may be laid with the tape inside or between the veneers and core, and the tape is not susceptible to separation or splitting as is a heavier single thickness of paper tape. a

The mechanism described is very practical and serviceable andhas so proved in actual practice. Many variations in structural detail may be resorted to without departing from the invention which isdefined in the appended claims and my invention, accord ingly, is to be considered comprehensive of all forms of structure coming within the scope of said claims.

I claim:

1. In a machine of the class described, a glue holding receptacle, a transfer roller rotatably'mounted therein, a housing above the receptacle, an arm pivotally mounted at one end at the inner side of said receptacle, a gluing roller rotatably mounted within said housing at theother end of the arm, said arm at its lower edge having a downwardly and inwardly inclined cam surface, a screw having a tapered end threaded through a side of the housing, said tapered end e11- gaging with said cam surface of the arm, a sheet metal shoe located over said roller, an arm extending from said shoe through a side of the housing, said side of the lions ing having an are shaped slot to pass said arm, said arm being turned downwardly after passing through said slot, means for pivotally mounting said arm at its lower end on said housing, means for securing said arm and shoe in any position to which moved, and means for drawing a continuous length of tape through said housing over said shoe and bringing the tape at one side in contact with th gluing roller, the extent of contact being determined by the position of the shoe with respect to the roller.

2. In a machine of the class described, a glue holding receptacle, a transferroller rotatably mounted therein, a housing above the receptacle, an arm pivotally mounted at one end at the innergside of said receptacle, a gluing roller rotatably mounted within said housing at the other end of the arm, said arm at its lower edge having a downwardly and inwardly inclined cam surface, a screw having a tapered end threaded through a side of the housing, said tapered end engaging witlrsaid cam surface of the arm, and means for drawing a con tinuous length of tape through said housing and bringing the tape at one side in con; tact with the gluing roller.

8. In a tape gluing machine having a receptacle for holding glue, the combination of, a transfer roller revolubly mounted therein, a gluing roller mounted above the transfer roller adapted to contact therewith, a shoe located over the gluing roller, means for adjusting the shoe to three or more different positions, and means for guiding tape to and over said shoe and into contact engagement with one side of the gluing roller, the extent of contact of the tape with the gluing roller being governed by the position of said shoe.

4. A machine of the class described, comprisinga glue holding receptacle having a portion extending upwardly, a transfer roller rotatably mounted therein, a housing hinged to and extending over the receptacle, an arm pivotally mounted on said upwardly extending portion, a gluing roller mounted on the arm and located above and adapted to contact with the transfer roller, means for guiding a continuous length of tape through said housing over the gluing roller, whereby the tape at one side contacts with said gluing roller, and adjustable means mounted between the gluing roller and tape and over which the tape passes for governing the extent of contact of the tape with said gluing roller.

5. A machine of the class described, comprising a glue holding receptacle, a housing hinged to and covering said receptacle, a gluing roller rotatably mounted in said receptacle, means to transfer glue from said receptacle to said gluing roller, means for guiding a continuous length of tape through said housing and over the gluing roller, whereby the tape contacts at one side with said roller, and adjustable means mounted on said housing and interposed between the roller and the tape over which the tape passes for controlling the extent of contact of the tape with said roller.

6. In a construction of the class described, a glue holding receptacle, a cover thereover, an arm mounted at the inner side of said re ceptacle, a stud shaft extending from the arm, a gluing roller removably mounted on said stud shaft, means for transferring glue from the receptacle to said roller, means for guiding a continuous length of tape through said receptacle and over said roller to contact therewith at one side of the tape, and adjustable means mounted between the tape and the roller over which the tape passes for shifting the tape toward or away from the roller to govern the extent of contact therewith.

7. A construction containing the elements in combination defined in claim 6, combined with means for readily opening said housing whereby the roller may be removed from said stud shaft when not in use.

In testimony whereof I affix my signature.

ALFRED A. DENNIS.