US 1196796 A
Description (OCR text may contain errors)
APPLICATION FILED JUNE 23. I915.
1 ,1 96,796. Patented Sept; 5, 1916. I
llniwnfur fa/m ifaa Lauri 7 SEALING-MACHINE Application filed June 23, 1915. Serial No. 35,947. j 1
To all whom it may concern Be it known that I, JOHN MAGLAURIN, a Subject of the King of England, residing at Brookfield, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Sealing-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
This invention relates to sealing machines and comprises a machine for applying an insoluble binding tape having an adhesive applied to one face thereof, and which adhesive is softened in its subjection to heat.
An object of this invention is the provision of a machine for feeding, applying and severing a tape having an adhesive face which is applied by the application of heat.
A further object of this invention is a provision of a means for severing the tape where desired and for the discontinuance of feeding the tape to be applied.
A further object of this invention is the provision of checking rollers for restricting the passage of tape through the machine to one direction.
Further objects will be apparent from the following specification, appended claims and drawings thereof, in which- Figure 1 is a side elevation of a machine constructed in accordance with this invention, Fig. 2 is a vertical sectional view in a plane parallel to that shown in Fig. 1, and Fig. 3 is a vertical cross sectional view through the machine.
This invention provides for the application of a binding tape by the application of heat to said tape to soften the adhesive face thereof, and at the same time to direct the course of the machine in applying said tape as well as applying pressure to the tape to cause the same to firmly set.
Referring to the drawings there is shown a frame 10 having a handle 11 thereon for convenient manipulation by an operator. The frame is provided as at 12 with a slot to receive a binding tape from any source of supply such as a suspended reel from where said tape is advanced between the rollers 13 and 14 of which the roller 13 has aratchet 15 formed thereon to receive a pawl 16 and thereby restrictthe rotation of the roller 13 to one direction, while the roller 14 is rotatably mounted on an elongated bearing 17 to Specification of Letters Patent. Patented Sept. 5, 1916.
permit vertical movement of said roller with respect to-the frame to receive the adhesive tape between the rollers 13 and 14 and the trunnions of the roller 14 are pressed downwardly as by a spring 18 at each end of said restricting rotation of said roller to one direction. A pressure roller 22 is movably journaled in'the elongated bearings 23 and is normally pressed into engagement with the periphery of the roller 19 or an adhesive tape there-about, as by the cam slots 24 formed in the arms 25 of a lever which is fulcrumed as at 26 and has a spring 27 attached to. the handle 28 thereof, the spring 27, bearing against the underside of the handle 11 to normally force the handle 28 away from the handle 11 and thereby exert pressure on the periphery of the roller 22. An arm 29 is pivoted upon the pin 26 and has a shoulder 30- formed thereon with which a lug 31 engages when the handle 28 has been swung through a portion of its movement and as the arm 29 is swung, a link 32 connecting this arm and a cutter 33 causes said arm to actuate said cutter and move the same across an opening 34 through which the tape passes and thereby sever the tape. It is apparent that when the handle 28 is raised to cut the tape, thepressure roller 22 to actuate said cutter. As the roller 22 res leases the tape, it is prevented from being withdrawn from the machine by the rollers 13 and 14 which check its rearward movement.
After the tape has passed through the machine and upon the article to which said tape is to be applied, the applying roller 19 passes over the tape and continues to advance the tape and as the tape is deposited upon the article such as the wrapper of a bundle, a heater 35 contacts therewith, when it softens the adhesive and at the same time presses the sealing tape firmly upon the wrapper to allow the adhesive face to firmly set so that as soon as the heater has passed over the tape, the adhesive face of this tape firmly sets and forms a perfect seal. It is apparent. that any form of heater may be applied to this invention without changing Ill the spirit thereof, as it is possible to substitute a rotary heater such as to convert the roller 19 into a heater, but for convenience, it"will be understood that the heater 35 is one of a common. type utilizing electricity for the generation of heat.
Various modifications may be made within the scope of this invention without departing from the spirit thereof and the drawings are submitted. for illustrative purposes only.
Having thus described my invention, I claim 1. In a sealing machine, a frame, an applying roller journaled therein, a pressure roller co-acting with said applying roller for advancing a sealing tape, a cutter for severing the tape, a heater for softening the adhesive surface ofthe sealing tape, and a lever for moving the pressure roller to spaced relation with respect to said applying roller and simultaneously actuating said cutter.
2. In a sealing machine, a frame, an applying roller journaled therein, said applying roller being restricted to rotation in one pressure roller co-acting with said applying roller for advancing a sealing tape, means for releasing said pressure roller from engagement with said applying roller,
icence between the applying and pressure rollers,
a manually operated lever having cam slots formed therein for moving said pressure roller from co-acting relation with said applying roller, and an arm actuated by said lever for actuating said cutter.
5. In a sealing machine, a frame, an applying roller journaled therein for rotation in one direction, checking rollers journaled in said frame to receive a web of sealing tape therebetween, a pressure roller carried by said frame coacting with said applying roller, said pressure roller being journaled in slots radially disposed with respect to said applying roller, a lever fulcrumed to said frame, said lever supporting arms which straddle said pressure roller, said arms of said lever being slotted eccentrically with respect to the fulcrum for said lever,said slotted arms also supporting said pressure roller, a cutter carried by said frame, an arm connected to said cutter, said arm being actuated by said lever upon com- I pression of a limited movement of said lever and a heating element carried by said frame to overlie a sealing tape supplied by said applying roller to soften the adhesive surface of said sealing tape.
In testimony whereof I afl'ixmy signature in presence of two witnesses.