US1442058A - Strip-serving machine - Google Patents

Description

Jan. 16, 1923.

' s. B. EMMERT.

STRIP SERVING MACHINE.

2 SHEETS SHEET I.

man MAR'.19,1919.

AS; MYP

' Jan. I6, 1923. S. B. EMMERT.

STRQP'SERVING MACHINE.

2,5HEETS-SHEEI 2.

FILED mm'. 19. m9.

$1 afto'cnev Patented Jan. 16, 1923.

UNITED STATES SAMUEL B. EMMERT, OF YONKEBS, NEW YORK, ASSIGNOR, BY IELESNE ASSIGNMENTS TO'NASEUA GUMMED & COATED PAPER COMPANY, OF NASHUA, NEW HAMPSHIRE STRIP-SERVING MACHINE.

Application filed March 19, 1919. Serial No. 283,585.

1 '0 all whom it may concern:

Be it known that I, SAMUEL B. EMMERT, a citizen of the United States, and a resident of 119 Morris Street, Yonkers, Vestchester 5 County, New York, have invented new and useful Improvements in Strip-Serving Machines, of which the following is a specification.

The present invention relates to machines for serving strips of adhesive gummed tape.

The improvements may conveniently be embodied in a machine adapted to feed, cut and moisten strips of tape and to deliver the same in an adhesive condition to an operator for immediate application to a package, box or the like. In U. S. Patent No. 1,384,082, to Charles G. Mortimer there is illustrated and disclosed an apparatus adapted to feed, cut, moisten and deliver strips of tape in adhesive condition to an operator for the same purpose. lhe present application discloses an apparatus embodying important improvements over the apparatus described in the aforesaid patent.

One object of the present invention is to insure accurate operation of the machine. Another object is to simplify the feed controlling elements in such a manner that they are not readily rendered inoperative by breakage or by rapid or careless operation.

One embodiment of my invention is illustrated in the accompanying drawings in which- Figure 1 is a side elevation with portions broken away to illustrate parts occupying relatively interior positions.

Figure 2 is a top plan view.

Figure 3 a view partly in transverse vertical section, at line 3-3 of Figure 2, show- 4 ing more particularly the strip severing mechanism.

Figures t and 5 are fragmentary views, somewhat enlarged, illustrating details of the feed controlling mechanism. Fig. 6 is a detail view.

According to the gummed tape in roll form may conveniently be supported in a suitable housing 1 mounted upon the base 2 of the apparatus. The

frame 3, also mounted upon the base 2 is adapted to carry tape feeding means, tape severing means and tape moist-ening means.

The tape feeding means may include a driven roller 4 securely mounted on a shaft 5 and adapted to co-operate with a second drawings, a supply. of

roller 6 'journaled in bearings 7 and adapted to be held in yielding engagement with said roller 4.

The strip severing means may include a fixed blade 8, preferably mounted above the normal path of the strip of tape as it leaves the feed rollers. A blade 9 is pivotally mounted to swing from a position below the path of the tape and to co-operate with the fixed blade 8 for the purpose of severing the strip. A suitable spring 10 engages the swinging blade 9, tending to press it normally to a position below the path of the tape. v

The moistening means may include a tank 11 adapted to holdwater or other suitable moistening medium which may conveniently be poured into said tank through a port 1"). projecting from the forward end of saidtank and forming a substantially funnel shaped opening thereto. A moistening roller 13 may be mounted to rotate within said tank and in contact with the moistening contents thereof, said roller being preferably formed. of a porous clay material. The tape supporting means, part of which has been heretofore described, may also include means for maintaining the tape supply in proper operative alignment with the feeding, severing, andmoistening means. The aligningmeans may include a plate or disk 14, as shown in detail in Fig. 63, secured to a supporting rod 15 slidably mounted in a suitable bearing 16. The supporting rod 15 may be provided with a plurality of peripheral grooves 17 adapted to engage a suitable yieldable stop member, as a ball bearing 18, normally he d in spring pressed engagement with said supporting rod 15 by means of a coiled spring 19. The degree of pressure of said spring 19 upon the ball bearing 18 may conveniently be regulated by means of a set screw 20 against which one end of said coiled spring may be seated. It is contemplated that' the tape supporting means in cluding the alignment maintaining apparatus just described. shall permit the use of tapes of different wi lths. Thus, it the tape is very narrow, the disk 1 may be pushed inwardly into operative engagement with the roll of tape and be held in position against accidental displacement by engagement of the ball bearing 18 with the disk supporting rod 15. Similarly, it a roll. of wider tape to be used in the device, the disk 1% may .a hand operated lever :22 pivotally mounted 2-3 and preferably arranged to co-operate withthe severing mechanism to automaticelly sever strips of tape. For this purpose, the lever arm engages the underside of the swinging blade 9 andnormally presses the same upwardly into operative relation to the fixed blade 8. A suitziblc spring incinher co-operate with the lever arm to actuate the same and ts hold it in. norincl blade engaging position, as indicated in dotted lines Figure 1.

Since the severing stroke of the blade 9 it into a position above the path of p, it is desirable to provide means seeing the blade and dropping it to elation oeneath the path of the strip to the next succeeding strip feeding To accomplish this, the parts 1 ged and related that the feed rollers will remain inoperative during s predetermined initial portion of the downward roke of lever arm 22.

Actual feeding movement of the feed rollersmsy he efi'ected by rotating the shaft 5. For this purpose, said shaft is provided with a pin 25. A ratchet 2-6, loosely mounted upon shaft 5, is provided with projecting lugs 2! edepted to engage said pin 25 in either direction of rotation. To actuate the 26, as spring pressed pawl 28 may be mounted on e suitable pawl carrying memher capable of being rotated to eficct revolv- Eng movement of the pawl. In the present apparatus, Figure 4:, the pawl carrying member is shown a cylindrical cap 29, in which imwl :28, suitably supported by apivot 30,

idingly engages ratchet The cylindricsl cap 29 is secured to a pinion 31 also loloseh supported on the shaft and posi' tions mesh with a rock 32 adapted to operatic with the lever arm ,In. operation, when the lever arm 22 is de pressed. rack 32 actuetes pinion 31- which in turn rotates cylindrical cssing29, thus revolving the spring pressed pawl 28. Pewl .28 moves ratchet 26 without actuating sheft 5 until the projecting lugs 27 engage the pin 25. This period during which the ratchet jtnoves relatively to the shaft 5- is. the period during which swinging blade 9 is released into its lower position beneath the path of the strip of tepe. At this point, and with continued downward movement of the lever 22, projecting lugs 2'; bear against pin end thusro; shaft 5 which in. turn a" to feed strip forward. The downward stroke of lever arm 22 may bemade to any desired degree within the limits of the machine, depending upon the length of strip desired to be fed from the supply of tape; When the desired amounthas been fed out and moistened, downward pressure upon the lever arm 22 may be discontinued and the lever arm released, thus permitting it to be thrust Lip-- wardly by spring 24 into actuating contact with the swinging blade 9.

At the end of the downward stroke of lever arm the projecting lugs 27 are in she-ft actuating engagement with the pin 25. However, when the direction of the lever arm is reversed, ratchet :26 is rotated in a direction opposite to its feed roll driving direction. Pawl is held in normal spring pressed engagement with said ratchet and therefore both move in the same direction until the projecting lugs :27 encounter pin 25. Beyond this point, in the reverse rotation of ratchet 2c the engagement between pawl 28 and ratchet 26 is not secure enough to effect reverse movement of the shaft 5. Accordingly, pawl 28 then moves relatively to ratchet In this manner, the parts are readjusted to permit the blade 9 to drop beneath the path of the strip upon the initial portion of the next succeeding downward stroke of lever arm 22 and before the actual feeding of the tape takes place.

While the machine described and illustrated in the patent hereinabove referred to was intended for the same purpose as the present apparatus, I have eliminated some of the more fragile members which form a part of that former structure, such as exposed springs, with the result that the new apparatus may be more effectively operative than the former machine.

' I claim as my invention:

1. In a machine for serving strips of adhesive tape, the combination of means for supporting A roll of tape and means for feeding said tape, said feeding means including a shaft, atape engaging: roller mounted thereon, a ratchet loosely mounted on said shaft and capable of limited rotary movement relatively thereto, means for actuating said ratchet to rotate the shaft and a tape cutting knife operated by said ratchet-actuating means.

2. In a machine for serving strips of adting knife operated by said ratchet-actuating means.

3. ]n a machine for serving strips of adhesive tape. the combination of means for supporting a roll of tape and means for feeding said tr e, including a shaft, a tape engaging roller mounted thereon. a ratchet loosely mounted on said shaft, means between said shaft and the ratchet for permit-ting limited relative rotary movement therebetween, a pawl mounted to engage said ratchet to rotate the shaft in one direction and to rotate the ratchet alone to a l mited extent in the opposite direction. means for actuating said pawl and a tape cutter operated by said pawl-actuating means.

4. In a machine for servingstrips of adhesive tape. the combination of means for sTipporting a roll of tape and means for 'feeding said tape, including a shaft, a tape engaging roller mounted thereon. a ratchet loosely mounted on said shaft, a pawl to engage said ratchet, means to actuate said pawl. stop means between the shaft and the ratchet whereby pawl actuated movement of the ratchet in one direction may rotate the shaft and movement of the pawl in the opposite direction ma rotate only the ratchet to a limited extent, whereupon continued movement of said pawl in said opposite direction is relative to both the ratchet and the shaft, means for actuating saidpawl, and atape cutter operated by said pawl-actuating means.

In a machine for serving strips of tape, the combination of means for support ing a supply of tape in roll form, means for feeding said tape and means for maintaining said tape supply in operative alignment with said feeding means including a plate movable axially of said supporting means and means for holding said plate in operative engagement with the roll of tape at various points along said supporting means whereby tapes of different widths may be accurately guided to said feeding means.

(3. In a machine for serving strips of tape. the combination of means to; supporting a supply of tape in roll form, means for feeding said tape .and means for maincluding a blade swingable upwardly by en-' gagement therewith of said actuating means to a position above the path of the tape in severing thelsame. and a lost motion connection between said feeding means and said actuating means to permit said blade to return to a position beneath the path of the strip prior to the feeding of the next sneceeding strip.

h. In a machine for serving strips of tape. the combination of means for feeding tape from a roll, tape severing means including a blade swingable across the path of the tape. a lever normally maintaining said blade in cutting position and movable in one direction to operate said tape feeding means and in the opposite direction to actuate said tape severing means. and means to permit an initial relative movement he tween said lever and said tape feeding 'means to allow said blade to clear the path of the tape.

5). In a machine for serving strips of tape. the combination of means for feeding tape from a roll, tape severing means including a swingable blade. a pivoted lever fo' actuating said tape feeding neans and normally engaging said blade to maintain the same above thepath of the strip. means permitting an initial movement of said lever relative to said tape feeding means thereby to drop said blade below the path of the strip before aetnation of the tape feeding means.

Signed at Xew York city. in the county of New York and State of New York this 28 day of l ebrnarv. 191$).

SAMUEL B. EMLWIERT.

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