US2157916A

US2157916A - Tape applying machine

Info

Publication number: US2157916A
Application number: US134566A
Authority: US
Inventors: Walter P Osgood
Original assignee: Individual
Current assignee: Individual
Priority date: 1937-04-02
Filing date: 1937-04-02
Publication date: 1939-05-09
Anticipated expiration: 1956-05-09

Description

, w. P. OSGOOD TAPE APPLYING MACHINE Filed April 2, 1937 5 Sheets-Sheet l ay 9, 1939. w. P. OSGOOD 2,157,916

TAPE APPLYI NG MACHINE W. P. OSGOOD I TAPE APPLYING MACHINE Filed April 2, 1937 5 Sheets-Sheet 3 May 9, 1939.-

w. P. oseoon 2,157,916

TAPE APPLYING MACHINE Filed April '2, 1937 v 5 Sheets-Sheet 4 If. Q x30 62;

. KLIZUQ w. P. OSGOOD 2,157,916 TAPE APPLYING MACHINE Filed April 2, 1937 5 Sheets-Sheet 5 Patented May 9, 1939 UNETED STATES PATENT OFFICE 1'7 Claims.

The present invention relates to taping machines which are used in the manufacture of shoes to apply tape to uppers and parts therefor.

In the manufacture of pumps it is often desirable to employ a one-piece vamp, at least from the tip line rearwardly, in which case it is necessary to perform the top-taping operation prior to the closing operation in which the rear edges of the one-piece vamp are closed at the heel there- :Lil

by converting the vamp into a ring-like form, the flesh or unfinished face of which is bent concavely. During the top-taping operation heretofore the tape was applied to the vamp while it was in a sheet form. That is, a lineal length of tape was applied to a commensurate length of vamp. When, however, the vamp was closed in a ringlike form and provided with a concavely bent fiesh or unfinished face, the tape, being the innermost ply thereof, became wrinkled objectionably.

The principal object of the present invention is to produce a taping machine which will convert the sheet material into the form it assumes when the work is closed or assembled upon the last and apply tape to the sheet material in its converted form.

To the accomplishment of this object a feature of the present invention contemplates the provision in a taping machine having means for sup- 1 porting and feeding the grain or finished face of the work, of means for bending the flesh or unfinished face of the work concavely about an axis extending substantially normal to the line of feed and for applying tape to the bent face.

Broadly considered the feeding, bending and tape-applying means may be independent, each, however, cooperating with the means for supporting the work. It is preferred, however, to employ a single means which cooperates with the work-supporting means to feed the work, to bend the work and to apply tape thereto.

Preferably the principal feature of the present invention is embodied in a machine of the progressive feeding and tape-applying type and in consequence it is desirable that the bending means operate progressively during the feed and tape application.

In my Patent No. 1,899,051, February 28, 1933, I have disclosed a tape-applying machine having a tape-applying mechanism which operates periodically and a tape pull-off mechanism which operates non-periodically. In my patented machine the tape is pulled oif the source of supply by a drum mounted upon the lever which operates the tape-applying mechanism. The drum is provided with a ratchet which, in non-periodic manner, is engaged with a pawl mounted independent of the lever, whereby the combined oscillating and reciprocating movements of the lever causes the pawl through the ratchet to rotate the drum. The drum is heavy compared to the weight of the pawl.

Another object of the present invention is to simplify and improve the pull-01f mechanism disclosed in my patented machine while retaining its desirable mode of operation.

To the accomplishment of this object a feature of the present invention contemplates the provision of a tape-applying machine in which the pull-off drum, provided with the ratchet, is mounted independently of the lever which oscillates and reciprocates the tape-applying mech anism towhich lever the pawl is operatively connected, the ratchet being movable periodically into engagement with the pawl whereby the combined oscillating and reciprocating movement of the lever causes the pawl through the ratchet to rotate the drum. Thus, the lever is relieved of the duty of carrying the heavy drum and ratchet resulting in a more satisfactory operation of the tape-applying mechanism.

Other features of the present invention consist in certain devices, combinations and arrangement of parts hereinafter described and then set forth broadly and in detail in the appended claims which possess advantages readily apparent to those skilled in the art.

The various features of the present invention will be understood readily from an inspection of the accompanying drawings illustrating the best form of the present invention known to the inventor, in which:

Figure 1 is a view in right side elevation of the tape-applying machine;

Fig. 2 is a view in front elevation;

Fig. 3 is a detail view in front sectional elevation, the tape-severing knife being latched in its inoperative position;

Fig. 4 is a view similar to Fig. 3, the tapesevering knife being engaged with the cutting block;

Fig. 5 is a detail view in sectional elevation on the line 5-5, Fig. 1;

Fig. 6 is a detail view in sectional elevation on the line 6--6, Fig. 5;

Fig. 7 is a detail view in sectional elevation on the line 11, Fig. 5;

Fig. 8 comprises three views, reading from left to right, a left side, a front, and a right side elevation of the tape-guide;

Fig. 9 is a detail view in plan, and

Fig. 10 is a detail view in sectional plan on the line Iii-4B, Fig. 1.

Generally, the illustrated embodiment of the present invention is provided with a tape-applying mechanism, a pair of work-supporting rolls, a device for pulling tape from the main tape source of supply and for forming a slack tape source of supply from which the tape-applying mechanism withdraws tape free from the main source of supply tension as needed, a tape-severing knife, a tape-guide, and a tape-presenter to feed the leading edge of the tape from the point of cut-off into the zone of activity of the tapeapplying mechanism.

The applying of the tape to the work is accomplished by the combined action of the two worksupporting rolls l2 and I3, (Figs. 2, 3 and e) and a pressing member or hammer i4.

Thepressing member !4 is detachably connected to the bottom of a head member E5, or lever. which has a vertical movement and also a rocking movement laterally. The oscillating head [5 is mounted on the main frame E5 of the machine and it receives its oscillating movement from an eccentric, (not shown) on a driving shaft ll carried by the main frame. The head I 5 is provided with a slot l8, (Figs. 2, 3 and 4), through which extends a stud l9 fast on the main frame it, said stud having a block which is mounted in the slot l8 and is journaled on the stud l9.

As the shaft I l is rotated the eccentric thereon gives the head l5 an up-and-down movement and also a rocking movement laterally, said movements causing the face of the pressing member !4 to move toward and from the work on the work support and also to have a lateral rocking contact with the work.

In the machine disclosed in the patent to Osgood, No. 1,549,376, the head, corresponding to the head l5, slides on the block in a direction radial to the eccentric pin or strap during the rotation of the eccentric, that is, in a straight line which intersects both the axis of the shaft and the center of the stud. With this construction the right-hand corner of the hammer, viewing the front of the machine, passes through an orbital path which differs from the path passed through by a regular four motion device, having equal upand-down and equal lateral steps, in that the square corners thereof are rounded. With such a mode of operation the right-hand corner of the hammer, in passing from the vertical to the horizontal transverses a curve in the path and thus imparts a glancing blow to the work at the moment of initial impact.

In the illustrated embodiment of the present invention, the head [5 slides on the block 28 in a direction non-radial to the eccentric during its rotation, that is, in a straight line which extends downwardly and laterally towards the toe of the hammer across the straight line intersecting the axis of the shaft I! and the center of the stud l9. With this construction and mode of operation the hammer has a compound movement during its descent into contact with the work. That is, the hammer in moving downwardly also moves forwardly in a direction opposed to the line of feed.

The work-supporting rolls l2 and I3 each comprise a rubber ring 2! carried by a metallic ring 22 which is freely rotatable upon a stud 23 projecting forwardly from a block 24. The rear face of the block 24 (Fig. 5) is provided with a way 25 which receives a cross-bar 26 secured to the front end of a carrier 21. The block 24 is provided with ears 28 and 29 (Fig. 3) each of which is slotted to embrace the shank of a headed-screw 30 threaded into a hole 3| (Fig. 5) topped into the cross-bar 26 thus to permit the position of the block 24 on the carrier 21 to be varied laterally.

The carrier 2'! supports a conventional work guide (not shown). The rear end of the carrier 21 is pivoted at 32 from the walls of a hollow frusto-conical domed shell 33, (Fig. 1), connected to the frame l6 through a vertical web 34.

The front end of the carrier 21 is pivoted also to the arms of a yoke 35 constituting, in effect, one link of a toggle, (Fig. l). The other link 36 of the toggle comprises a yoke which is rotatably mounted on a horizontal rod 31 carried by the base of the shell 33. The floating pivot for the

toggle links

35 and 35 is formed by a pair of conical ended screws 38 carried by the link 36 and arranged to engage conical cavities formed in the lateral sides of the yoke 35.

In order to force the work-supporting rolls I 2 and I3 upwardly towards the tape-pressing member l4 yieldingly, the back face of the yoke 35 is provided with a pair of spaced arms 39, (Fig. 1), which support a horizontal rod 40 upon which a block 4| is pivotally mounted. The block 4| receives one end of a screw-threaded rod 42 the other end of which is provided with a nut 43 threaded into the shell 33 and provided with a spring tension adjusting hand wheel 44. Coiled around the rod 42 and interposed between collars 45 and 45 thereon is a spring 41.

In order to break the toggle and thus lower the work-supporting rolls l2 and I3 to facilitate the insertion and removal of the work into and out of the machine, respectively, the link 36 is provided with an arm 48, (Fig. 2) which is pivotally connected to the upper end of a treadle rod 49. The dome of the shell 33 is provided with an adjustable bolt 50, (Fig. 2), the lower end of which is arranged to engage a vertical extension 5| on the carrier 2'! and thus act as a stop to limit the upward movement of the work-supporting rolls under the influence of the spring 41.

As usual in this type of machine the tape is coiled in a coil 52 (Fig. 2) which is supported from the rod 53 carried by the dome 33, in a conventional maner, The roll 52 constitutes the main source of tape-supply. From the source of supply the tape passes under a drum 54 the longitudinally-milled peripheral surface of which engages the sticky face of the tape. The drum 54 is loosely mounted on a stud 55 which projects forwardly from an arm 56 pivoted on a horizontal rod 51. The rod 5? is secured to a bracket 58 (Fig. 2) secured to the frame l6.

One face of the drum 54 is provided with a ratchet 59 which is held from movement in a clockwise direction by a pawl 60. The pawl 60 is loosely mounted on a stud 6| secured to a bracket 62 on the arm 56. The pawl 60 is held engaged with the ratchet 59 by a spring 63 (Fig. 9) coiled about the stud 6|, one end of the spring being hooked into the pawl 60 and the other end of the spring being hooked into the bracket 62.

From the drum 54 the tape pases over a takeup roll or feeler 64 the concave peripheral surface of which engages the non-tacky face of the tape. stud 65 projecting forwardly from the free end of the arm 56. The arm 56 is held normally engaged with a stop 65 on the bracket 58 by a spring 61, coiled about the rod 51, one end of the spring being hooked into the arm 56 and the other end of The take-up roll is loosely mounted on a the spring being hooked into a collar 68 secured to the rod 51. The spring 61 holds normally the drum 54 and the feeler roll 69 in their extreme positions of elevation.

From the feeler roll 64 the tape is conducted to the zone of activity of the hammer by a tapeguide 69 (Fig. 8) the upper end of which is loosely mounted on a horizontal stud III projecting forwardly from the frame II). The back face of the tape-guide, illustrated in the left-hand View of Fig. 8, is provided with a slot II to enable the free end of aleaf-spring I2 secured to the back face to engage the non-tacky face of the tape and press it under a mild tension against an internal surface 13 associated with the front face of the tape-guide. The front face of the tape-guide is provided with a flat surface M terminating at one side in a wall I5. The surface I3 is integral with the wall 15, the construction being such as to provide an elongated opening I6, (Fig. 8) between the surfaces I3 and I l to facilitate the threading of the tape into the tape-guide. During its passage through the tape-guide the tape is held from displacement laterally in one direction by the wall 75 and in the other direction by a gage block I1 secured in a blind opening I8 formed in the side of the tape-guide just above the opening I6. The tape emerges from beneath the surface 13 of the tape-guide through an opening "I9 formed by a block 80 secured to the surface It in spaced relation to the lower end of the surface '53. The upper edge of the block 39 is beveled at BI (Fig. 8) to ease the passage of the tape thereo-ver.

The block 89 of the tape-guide during the tapeapplying operation is held just above the cuttingbed surface 82 of a cutting block 83 secured to the web 34. The block 83 is provided with an inclined guideway 89 which conducts the tape to the zone of activity of the hammer.

From the construction described it is apparent, as the drum 54 is free to rotate in a contra-clockwise direction, viewing Fig. 2, that during the feed of the work over the rolls I2 and I3 by the hammer I4 there is a tendency for the hammer to pull tape from the coil'52 at each feeding step. But, as the tacky face of the tape in the coil 52 is stuck to an adjacent face in an adjacent convolution, considerable force is required to unwind the tape from the coil. It is, therefore, undesirable to rely upon the hammer to pull tape from the source of supply as the pulling force exerted thereby would drum-head the tape between the work and the block 89 and thus interfere with the application of the tape to the work.

In the illustrated embodiment of the present invention the drum 59 is rotated in a manner presently to be described to unwind the tape from the coil 52 and to produce an auxiliary supply of slack tape which is used up as needed by the hammer I4.

The drum 59 is rotated by a pawl 85 pivoted upon a link 86. The pawl 85 is held normally against a stop 8'? on the link 36 by a coiled spring 819, one end of which is secured to a pin on the link and the other end of which is secured to a pin on the pawl. The upper end of the link 86 is pivoted upon a stud 88 projecting forward from the upper end of the bracket 58. The lower end of the link 96 is pivoted to one end of a link 89 the otherend of which is pivoted on a stud 99 secured to an ear M on the head I5. With this construction the pawl 85 moves in an oscillating path during the inclined reciprocation and lateral oscillation of the head I5.

Fig. 2 shows the pawl 85 withdrawn from the ratchet 59 on the drum 59. This is due to the position of the take-up or feeler roll 64 which is held in engagement with the loop of withdrawn tape by the light spring 61. In consequence no tape is pulled from the source of supply by the drum 59 which is stationary during the operation of the tape-applying hammer I4. As the slack in the loop of withdrawn tape engaged by the feeler 64 is used up the feeler 64 is moved downwardly by the tape under the influence of the hammer Id against the tension of the light spring 61 until the ratchet 59 on the drum 59 is moved into the oscillating path of the pawl 85. Then the pawl 85 rotates the ratchet 59 and the drum 54 in a contra-clockwise direction, (Fig. 2), to draw tape from the source of supply.

In the illustrated embodiment of the invention the stroke of the pull-01f drum 54 is such that more tape is pulled from the source of supply than is used up by the hammer It in a single feeding step thereof. With such a construction and mode of operation the withdrawn tape is bound to accumulate. But as the spring 6! maintains the feeler 64 engaged with the withdrawn tape during its accumulation the drum 54 is withdrawn from the oscillating path of the pawl 85 and the operation of the tape pull-off drum 54 suspended.

When the hammer I l eats into the accumulation of withdrawn tape the ratchet 59 on the drum 54 is replaced in the oscillating path of the pawl 35 and the drum 54 is rotated again to Withdraw more tape. In the preferred mode of operation the pull-off operates in timed relation with the hammer I l during successive cycles varying in number, depending upon prevailing conditions and then the operation of the pull-off is suspended for one cycle, or it may be, successive cycles depending again on the prevailing conditions. Thus, while the hammer I I is operated periodically the pull-off is operated non-period ically.

It is usual in this type of tape-applying machine to provide a tape-severing knife to sever the tape. In the illustrated embodiment of the invention the tape-severing knife 92 is formed upon the bottom of a plate 93 mounted to slide vertically. To this end a block 99 (Fig. 1) is secured to the web 34. The block 94 (Fig. 10) is milled vertically to provide a way 95 for the plate 93, the front end of the milled slot being filled by a filling piece 95. The plate 93 near its upper end is secured to a block 9! which is carried by the lower end of a rod 98 mounted to slide vertically in a block 99 secured to a bracket I carried by the machine frame IS.

The tape-severing knife 92 is actuated to sever the tape by a spring I9I coiled about the rod 98 and interposed between a washer 92 engaged with the block 97 and a washer I93 engaged with the block 99. To store power in the spring IIII one face of the block 94 is provided with a slide I94 which slides beneath cover plates I and I06 secured to the block 94. The slide I04 is provided with a pin I95 having peripheral surfaces of different diameters, the'smaller one of which is pivoted to one end of a link It! the other end of which is pivoted to an arm I99 projecting forwardly from one end of a rock shaft I99, journalled in a bracket II9 (Fig. l) bolted to the web 34. The other end of the rock shaft I99 is provided with an arm III which is pivotally connected to the upper end of a treadle-controlled rod H2 (Fig. 2), which slides freely either through the bench upon which the machine is mounted or the base of the dome 33 as indicated. When the treadle-cont'rolled rod I I2 is depressed power is stored in a spring II3 coiled about the rod and interposed between the stationary part through which the rod slides and a collar II4 secured to the rod to restore the rod to its initial elevated position upon release of the treadle.

When the treadle-controlled rod H2 is depressed both the slide I04 and the pin I05 engage the bottom of the block 97 and elevate the tapesevering knife from the position of Fig. 4 to that of Fig. 3 in which position the knife is latched against the stored power of the spring IOI. To this end the upper end of the plate 93 is provided with an opening H5 arranged to receive a latch I I6 formed on an arm I I! depending from a rockshaft H8 journalled on the bracket I00.

Near its rear end the rock-shaft I I8 is provided with an arm II 9 which is pivoted to the upper end of a link I20, the lower end of which is pivoted on a stud I2! secured centrally to an oper ating lever I22. One end of the operating lever I22 is pivoted on a pin I23 carried by the block 94. The other end of the lever I22 is provided with a finger-piece I24. The latch HE is rocked into the position of Fig. 3 by a coiled spring I25, (Fig. 2), one end of which is hooked into a pin on the bracket I00 and the other end of which is hooked into a pin on the link I20.

With the construction described, depression of the treadle controlled rod II2 elevates the tapesevcring knife, stores power in the knife-operating spring and locates the opening I I5 in posi tion to receive the latch I I 6 thus to hold the knife in readiness for the tape-severing operation. To actuate the tape-severing knife the operative presses the finger-piece I24 thereby withdrawing the latch H5 from the opening Ii 5 to release the tape-severing knife to the influence of the stored-power in the spring IOI which drives the knife downwardly to sever the tape on the cutting bed surface 82.

From an inspection of Figs. 3 and 4 it is apparent that during the normal tape-applying operation the lower end of the tape-guide 69 is interposed between the tape-severing knife and the cutting-bed surface. In order to move the lower end of the tape-guide out of the path of movement of the tape-severing knife and to lay the tape over the cutting-bed surface 82 when the finger-piece I24 is operated to release the knife for its tape-severing stroke the lower end of the wall I5 on the tape-guide 69 is provided with a pin I 25 upon which the lower end of a link I21 is pivoted. The upper end of the link I21 is pivoted on the stud I2I carried by the operating lever I 22.

The operating lever I22 and the parts operated therefrom including the latch II 6 and the tape-guide 69 are locked in the position of Fig. 4 against the tension of the spring I25 by a pin I28 carried by a block I29 secured to the upper end of the rod 58. The pin I28, during the tapesevering operation rides along one edge of an arm I30 which is secured to the rock-shaft IE8 by a split-clamp fastening. In order that the operating positions of the tape-guide 69 and the latch I I6 may be correlated accurately the link I20 is made in two parts (Fig. 5) which are adjustably connected in order that the length of the link I20 may be varied slightly. The block 94 is provided with a yoke I 3 I, the arms of which are arranged upon opposite sides of a stud I32 carried by the lower part of the two part link I20. The yoke I3 is adjustably secured to the block 94, (Fig. 1). When the parts are in the position of Fig. 3, the stud I32 should engage the lowermost arm of the yoke I30 and the bottom of the upper part of the two-part link I20 should engage the uppermost arm of the link I30.

In order to bring the leading edge of the tape connected to the source of supply from the position it occupies when formed by the tape-severing knife down the face 83 of the cutting block and through the guideway 84 into the zone of activity of the tape-applying hammer I4, the slide I 04 is provided with a tape-presenter I33. The tape-presenter I33 comprises a thin plate, the upper end of which is-secured flat-Wise to the slide I04. The lower end of the tape-presenter I33 projects below the slide I04 which projecting portion is bent downwardly and to the left, viewing Fig. 4, to cause the tape-presenter to engage the tape passing through the guideway 84. The lower end of the tape-presenter engages the tacky face of the tape adjacent its leading edge and drags it from the cutting block to the zone of activity of the hammer I4.

Fig. 4 illustrates the position of the tape-guide, the tape-severing knife and the tape-presenter at the completion of the tape-severing operation. When the operative depresses the treadlecontrolled rod II2 the tape-severing knife and the tape-guide are moved from the position of Fig. 4 to that of Fig. 3. The tape-severing knife spring I25 when the pin I28, during the upward movement of the rod 98, rides ad the end of the arm I30. During this movement of the tapeguide the freshly cut leading edge of the tape is caused to dangle over the edge of the cuttingbed surface 82. When the slide I04 is elevated the lower end of the tape-presenter is elevated into engagement with the exterior surface I3 on the tape-guide. Then, when the treadle-rod II 2 is released the spring II3 causes the lower end of the tape-presenter to wipe downwardly over the tape-guide from which it picks up the tape adjacent the leading edge thereof and moves it downwardly into the guideway 84 from the lower end of which the leading edge of the tape dangles so that when the new piece of work is 3 introduced into the machine the leading edge is brought beneath the hammer I 4.

From an inspection of Fig. 3 it is apparent that the hammer I4 cooperates first with the work-supporting roll I2 to feed the leading edge of the work in the direction of the arrow over the periphery of the roll I2. The hammer then cooperates with both of the rolls I2 and I3 to feed the work over their peripheries and to bend that portion of the work which bridges the peripheries of the rolls I2 and'I3 about an axis extending substantially normal to the line of feed. The hammer then cooperates with the roll I3 to feed the trailing edge of the work over its periphery. During the feed of the work the rolls are rotated in a contra-clockwise direction, viewing Fig. 3, so that the hammer cooperates with the down-going side of the roll I2 and the up-going side of the roll I3. As shown in Figs. 3 and 4 the bottom of the hammer is elongated to bridge the gap between the rolls, is concaved from toe to heel to fit the concavity produced in the work by bending the portion of the work extending unsupported between the peripheries of the rolls, and has its toe grooved laterally to provide sharp lands to facilitate the initial engagement of the tape with the work and its subsequent feed.

In order to prevent the leading edgeof the work from following the down-going side of the roll l2 the block 24 is provided with a strip 13d (Figs. 3 and 4) having a vertical portion which is secured to the block and an upper horizontal guard portion I35 which extends between the peripheries of the rolls l2 and i3 longitudinally thereof. As shown in Figs. 3 and 4 the lateral edges of the guard portion I35 are bevelled to enable the edges to extend close to the peripheries of the rolls.

Nothing herein explained is to be interpreted as limiting the various features of the present invention in the scope of its application to use in connection with the particular machine or the particular mode of operation or any combination thereof selected for purposes of illustration and explanation. While the particulars of construction herein set forth are Well suited to one mechanical form of' the invention and to the uses to which it is put, it is not limited as to these uses, nor to these details of construction, nor to the conjoint use of all its features, nor is it to be understood that these particulars are essential since they may be modified within the skill of the artisan without departing from the true scope of the actual invention, characterizing features of which are set forth in the follow ing claims by the intentional use of generic terms and expressions inclusive of various modifications.

What is claimed as new, is:

1. A tape-applying machine having, in combination, means for supporting the grain or finished face of the work, and means cooperating therewith for feeding the work, for bending the flesh or unfinished face of the work concavely about an axis extending substantially normal to the line of feed, and for applying tape to the bent face.

2. A tape-applying machine having, in combination, means for supporting the work and a single means cooperating therewith for feeding the work, for bending the flesh or unfinished face of the grain or finished face of the work concavely about an axis extending substantially normal to the line of feed and for applying tape to the bent face.

3. A tape-applying machine having, in combination, means for supporting the grain or finished face of the work, and means cooperating therewith for feeding the work progressively, for bending progressively the flesh or unfinished face of. the work concavely about an axis extending substantially normal to the line of feed, and for applying tape progressively to the bent face.

4. A tape-applying machine having, in combination, means for supporting the work comprising a pair of spaced apart rolls and a tapeapplying means constructed and arranged to bridge the space between the rolls and engage at least a portion of the work extending unsupported between the rolls.

5. A tape-applying machine having, in combination, means for supporting the work comprising a pair of spaced apart rolls, and a tape-applying means constructed, arranged and operated to cooperate first with one of the rolls only, then with both rolls, and finally with the other one of the rolls only during each cycle of operation.

' 6. A tape-applying machine having, in combination, a pair of spaced apart, freely revoluble rolls, and a tape-applying means cooperating therewith to feed the work and thereby rotate the rolls, the tape-applying means cooperating with the down-going side of one roll and the lip-going side of the other roll.

'7. A tape-applying machine having, in comination, means for supporting the work comprising a pair of spaced apart rolls and a tapeapplying means constructed and arranged to bridge the space between the rolls and engage at least a portion of the work extending unsupported between the rolls, and means for preventing the work from passing through the space between the rolls.

8. A tape-applying machine having, in combination, a pair of spaced apart work-supporting rolls, a. guard extending between the rolls, and a tape-applying hammer mounted above the guard to feed the work thereover and the peripheries of both rolls.

9. A tape-applying machine having, in combination, a pair of work-supporting rolls, a tapeapplying means cooperating with the rolls to tape the work, a common support for the rolls, a carrier and means for connecting the support adjustably to the carrier.

10. A tape-applying machine having, in combination, a source of tape-supply, a moving lever, a pawl operatively connected thereto, a drum, engaged with the portion of the tape extending from the source of supply, a ratchet for rotating the drum, and means for moving the ratchet into engagement with the pawl, whereby movement of the lever causes the pawl to rotate the ratchet.

11. A tape-applying machine having, in combination, a source of tape-supply, a lever, a pivot therefor, means for oscillating the lever on its pivot and for reciprocating the lever, a drum, engaging that portion of the tape extending from the source of supply, mounted independently of the lever, a ratchet for rotating the drum, a pawl operatively connected to the lever, and means for moving the ratchet into engagement with the pawl, whereby the combined oscillating and reciprocating movements of the lever causes the pawl through the ratchet to rotate the drum.

12. A tape-applying machine having, in combination, a source of tape-supply, a lever, a pivot therefor, means for oscillating the lever on its pivot and for reciprocating the lever, linkage one end of which is pivoted on a stationary part and the other end of which is pivoted on the lever, a pawl carried by the linkage, a pivoted carrier, a drum, engaging that portion of the tape extending from the source of supply, and a feeler carried thereby, a ratchet for rotating the drum, means for maintaining the carrier normally elevated, and means acting through the feeler to depress the carrier and move the ratchet into engagement with the pawl, whereby the combined oscillating and reciprocating movements of the lever causes the pawl through the ratchet to rotate the drum.

13. A tape-applying machine having, in combination, a tape-applying mechanism, tapesevering mechanism, a cutting bed surface, a tape-guide having its tape-delivering end interposed between the tape-severing mechanism and the cutting-bed surface, means for throwing the tape-severing mechanism out of operation, a latch for retaining the tape-severing mechanism out of operation and means for tripping the latch and for withdrawing the tape guide from the path of movement of the tape-severing mechanism.

14. A tape-applying machine having, in combination, tape-applying mechanism, tape-severing mechanism, a cutting bed surface, a tapeguide having its tape-delivering end interposed between the tape-severing mechanism and the cutting bed surface, means for throwing the tapesevering mechanism out of operation and for feeding the freshly cut leading edge of the tape from the point of cut-01f into the zone of activity of the tape-applying mechanism, a latch for retaining the tape-severing mechanism out of operation and means for tripping the latch and for withdrawing the tape guide from the path of movement of the tape-severing mechanism.

15. In a tape-applying machine the combination with a tape-severing knife, an independent slide and a tape-presenter carried thereby, of means for operating the slide in one direction to throw the tape-severing mechanism out of operation and in the opposite direction to cause the tape-presenter to engage and feed the freshly cut leading edge of the tape.

16. A tape-applying machine having, in combination, a tape-severing mechanism, a latch for retaining it out of operation, a tape-guide movable into and out of the path of movement of the tape-severing mechanism, a common spring for moving the latch and the tape-guide in one direction and means for moving the latch and the tape-guide in the opposite direction.

17. A tape-applying machine having, in combination, a tape-severing mechanism, a latch for retaining it out of operation, a tape-guide movable into and out'of the path of movement of the tape-severing mechanism, a common spring for moving the latch and the tape guide in one direction and means for moving the latch and the tape guide in the opposite direction, a latching means for locking the latch and tape guide from movement under the influence of the common spring, and means for unlocking the latching means and for throwing the tape-severing mechanism out of operation.

WALTER P. OSGOOD.