US1858811A - Tape applying machine - Google Patents

Description

May 17, 1932- w. T. B. ROBERTS TAPE APPLYING MACHINE 2 Sheets-Sheet Filed Feb. 17, 1928 May 17, 19312. w. TI BPROBERTS 1,858,811

TAPE APPLYING MACHINE Filed Feb. 17, 1928 2 Sheets-Sheet 2 Patented May 17, 1932 VJILLI-AM enemas BnoKmenAM nonnars, or Ln-Ionsrna, :nnerann, Assrenoa no nnrrnn s nor MaoHmnnY eoaroaezrron, or ranrisen, nnwanasny, A eoaiaoam TION OF NEW JERSEY warn rrnrme M CH NE Application filedF-e bruary 17, 1928, Serial No. 255,170, and in Great Britain Mareh 14, 1927.

"- his invention relates to machines for lay in-g reinforcing tape upon sheet material of any kind, but particli larly npon the parts of shoe uppers. An object of the invention is to improve machines of this class, in respect "to operating efficiency and speed, mechanical eon-struction and range of usefulness. In this endeavor,1 have' improved certain of the strnmenta l ities of 1tape 1ayi ng madh-ines and combined them in norl manner with each other. p

Among other features, there is provided,

in combination with a work support andtape feeding and pressing instrnmeritsilit'ies, an improved guiding mechanism tor leading the tape to the "work, designed "particularly to facilitate layi'ng'the tape about curves. To this end, the :tapegnide as herein illustrated is mounted tor rocking movement-abontan axis which is longitudinal with -respect to the direction in which the guide leads the tape.

In order to facilitate the tape severing'oporation, "the tape is tensoned=atthe-com pleg5 t-ion of a tapingoperation, and to this end the delivery end ofithe-gi it ie is moved between the tape feeding and pressing instrmnentali ties, causing the tape toloe drawn about the latter. 7

Another feature consists ina novel feedi-ng foot, havingra portion for engaging the-Work, and tape-engaging portion arranged to not nponthe tape at :onesideef the line otworlr teed. A'foot of this description hasiheen found to operate with particnlaryadvantage struction, of means tor moving the knife from an inoperative position, toward which it is resiliently nrged,-to .a'position of readiness forits oil-thing stroke prior to a taping opera tion. Pneferahly, the knife is maintainedin inoperative position by a treadle mechanism, which forms another feature of the invention, and as herein illustrated is constructed and arranged to actuate the knife during its cutting strolre. f

@ther featnrespf the invention consist of a work snpportoftwo parts, one of which is arranged topmove withthe feed toot during the feeding movement and is snbsequently returned to its initial posit-ion, and also of a -oomhination;wherein a work support as above described is associated with a single controlling treadleloythe-operation of which the work-support isretracted from a position inwhich it presents the work to the operating tools and sim'lilgta-neously causes theknife to out the tape. p

My'invention will be best understood and appreciated from the following description of a preferred embodiment thereof, selected for pnrposesoifillustration and-shown in the I accompanying drawings, in which Fig. =1 "1s =a-=v-1eW of the machine 1n front elevat1on,'certa1n parts being broken away;

Fig. is a view {in end elevation, partly in section;

Fig. ,3 1s'a View mend elevatlon, partly in seotion,of parts ofthe starting and stopping mechanism Fig. 4 -is a'view in end elevation or the operating 'ins'trumentalities of the machine;

Fig. 5 illnstrates the hammer cam and the parts-operated thereby;

Fig. 6 is a View in end elevationofthetape severing knife and associated parts and Fig, 7- illustrates an alternative form..of

fee'd'foot.

The illustratedmachine comprises a base 1, having an upstanding colnmn 3 at ,its right end which carries the starting and stopping meehanismo'f the machine and merges into allover-hanging arm orb-racket 5, carrying at its outer end the operating instrumentalities of the machine. At its left-"end, the base '1 is provided with hearings for a "work-sup;

porting post 81 upon which the work is presented to the action of the instrumentalities carried by the overhanging arm 5.

Mounted in hearings in the arm 5 is a horizontally disposed driving shaft 7, having secured to its outer end a hand wheel 9 secured to a brake drum 10 having a ring 11 which constitutes a. flat clutch face. A driven pulley'13, carrying a clutch disk 15, is mounted for free rotation upon a sleeve 17 which is free to move longitudinally upon the shaft and constantly urged by springs 19 toward the right into clutching engagement with the clutch ring 11. The sleeve 17 carries a collar 21 anda cam disk 23, having a cam 25 upon its right hand or inner face.

.A clutch operating lever 31 is pivotally mounted upon a boss projecting from the column by means of a shaft 33, extending parallel to the driving shaft 7. A spring 34, interposed between the column 3 and the lower end 35 of the clutch lever, acts to press the upper end of the same inwardly. The lever 31, at its upper end, carries a roll 37,

rotatable on a. transverse axis and adapted to be located between the collar 21 and the cam disk 23 of the sleeve 17 when the upper end of the lever 31 is swung inwardly. Under these circumstances, the roll 37 cooperates with the cam 25 to shift the sleeve 17 toward the left and disengage the clutch. hen the upper end of the clutch lever 31 is moved outwardly, the roll 37 is removed from the path of the cam. 25 and the sleeve is free to move toward the right under the actuation of the springs 19 to engage the clutch and start the machine.

The clutch lever 31 is under the control of a clutch treadle, connected to a vertical treadle rod 41, having at its upper end a wedge cam 43 adapted to cooperate with a cam roller 45 on the upper end of the clutch lever 31to swing the lever outwardy when the treadle rod is depressed. Upon the release of the treadle, the clutch lever 31 is returned by its spring to initial position and, at the proper point in the cycle of the machine, the clutch disengaged as already described.

Simultaneously with the release of the clutch, a brake is applied to the brake drum 10. This comprises a brake block 57,

mounted upon the right-hand end of an arm.

pin 61 affords provision for adjustment of the arm 59 relatively to the collar 21 and cam disk 23, so as to compensate for wear or in the preliminary setting up of the machine. in order to rotate the pin 61, a toothed segment 67 is secured to the rear end of the latter and arranged to mesh with a pinion formed in the rear end of a transverse shaft 55, which carries at its front end a knurled head 69 by which the shaft may be rotated. A set screw 71 is provided for holding the shaft in position corresponding to any adjustment of the segment 67.

Adjacent to the cam 25, the clutch lever 31 is provided with a finger 47, adapted to cooperate with a controlling lever 49 pivotally mounted upon a pin 50 extending between ears projecting from the frame of the machine and spring-pressed downwardly at its front end. Thus when the upper end of the clutch lever 31 is moved outwardly, the controlling lever 49 moves downwardly to pre vent inward movement of the clutch lever 31 until the movable stop is swung upwardly again. This is effected through a roll 51, carried by the controlling lever 49 and co operating with a peripheral cam face 52 upon the cam disk 23. The cam face 52 is so shaped that the clutch can be disengaged only when the instrumentalities of the machine are in the proper position in their cycle, that is to say, when the hammer is down and the com bined feed foot and tape sealing foot is raised. In order that the shaft 7 may be released when the clutch treadle is depressed, should this be desired, a hand-operated lever 53 is mounted upon the right end of the shaft and arranged to contact with the cam 25 to force the sleeve 17 toward the left and so hold the clutch disengaged. The hand-operated lever is held by a friction clutch in any posztion to which it is moved by the operator.

The work-supporting post 81 is mounted for limited vertical movement in the base 1 of the machine and held normally in its lowermost position by its own weight. position, a collar 83 on the post is seated in a recess in the base, as clearly shown in Fig. 2. In order to move the post upwardly, a treadle is connected by a treadle rod to one arm 85 of a bell crank lever, the other arm 89 of which is formed with a cam that contacts with a roll 87 connected with the lower end of the post. The outer portion of the cam arm 89 is concentric and supports the post 81 in a stationary condition when the treadle rod is depressed to carry the face 91 of the arm 85 to the bench.

The roll 87 is not carried directly by the work-supporting post 81 but is mounted on the lower end of a vertical sleeve 93, which surrounds the lower reduced end of the post and sustains the downward pressure of the post transmitted through a spring which is seated against the upper end of the sleeve 93 and the under side of the collar 83. A

In this transverse pin 97 which projects through the post and into slots in the sleeve limits relative axial movementof the sleeve93 andthe post 8. A thumb screw'99, shown in Fig. 1, is adapted to contact with the collar 83 of the 0st and limit-theupward movement thereof, sothat after the treadle has been depressedto move the sleeve 93 and spring95 bodily upwardly carrying the post to its operative position, as determined by the. adjusting screw 99, the spring 95 will yieldand permit lost motion of the sleeve 93. The spring 95 is sufficientlystrong to support the post 81 in operative position against the pressure of the operating instrumentalities of'the machine.

The upper end of the post 81 carries a work-support which comprises twoparts, a

fixed rear part or anvil 101 and a rocking part or support 103. The] anvil is convex in contour and located substantially beneath the hammer of the machine, although its front edge may be slightly in advance of the front edge of the hammer and immediately underneath the tape severing knife, to be described hereinafter. The rocking support 103 of the table is formed upon a finger 105, pivoted to oscillate upon a transverse axis-and is located with its work-supporting face under the feed foot of the machine. The finger 105 is normally pressed forwardly against a stop by a compression spring 107. When the rocking support is moved forwardly in the feeding operation, its top surface will be substantially horizontal and flushwith the top front edge of the stationary anvil 101.

In operation, the feed foot 141 descends and presses the work on top of the rocking support 103. It then moves rearwardly, carrying the work and the rocking support with it and then rises to release the work, where upon the rocking support 103 slides under the work to its initial position under actuation of the spring 107 and is in readiness for the next feeding step. For handling some classes of work, the surface of the anvil or the rocking support, or both, may be covered with or formed of rubber.

'Mounted upon the right side of the post 81,

. as viewed in Fig. 1, is an edge guide 109 which is carried by a supporting member 111, pivoted to the post 81' upon a transverse pin 113 in such a manner that it can be swung downwardly into inoperative position when not in use. As shown in Fig. 1,the supporting member 111 is held in. operative posltion by the latch 115.

In the outer or left-hand end of the overhanging arm or bracket '5 are mounted the operating instrumentalities of the machine,

"blows upon the tape to cause it to adhere properly to the work. As shown in Fig. 4, this is formed with a barrel .123 which contains an electric heating unit suitably con- 'tape'to be used in the machine and long enoughto act several times on each piece of tape being fed beneath it. The barrel 123 of thehammer is connected to the head of'the machine by two pair of parallel'links 127 and 129, so that as it is moved up and downits path, which is short, is substantially in a straight line. The barrel123 is provided with a lateral extension 131, carrying-ahardened contact stud 133 which cooperates with] an ear 135 projecting from 'thefface of ayoke cam 137., as shown'in Fig. 5 The yoke cam 137 is pivoted to the head of the machine by the same :pivot that carries the upper links 129and embraces the hammercam 122 on the main shaft 7 As will be apparent, the hammer is moved upwardly by the action of the cam. It is moved downwardly in a yielding manner by a compression spring acting through the pin 138 which bears upon the lat eral extension 131 of the hammer barrel. Compression of the spring may be regulated and controlled by a thumb nut 139 passing upwardly through the head of-the machine within convenient reach of theoperator. As

already noted,'the working face of the hamchine to operate upon the tape and its 'function is to secure complete and uniform adherence of the tape to the surface of the'work.

The main. shaft 7 carries near its left-hand end, as seenin Fig. 4,three cams, a lifting cam 142 for the work feed foot, a feed cam 144 to give the feed foot its feeding movement, and the hammer-cam 122, already described.

In front of the hammer 121 and spaced somewhat therefrom 'is the work-feeding foot 141, whic'h comprises a hardened feed dog 143, corrugated in its acting face'and adapted to act upon the work at one side of the tape,'not engaging the tape at all. The feed foot 141 is mounted upon the lower end of a plunger 145 which is received invertical bearings in a 'feed'foot casing member 147, pivotally mounted at its upper end upon a pin 149 to the frame of the machine. The member 147 is provided with a substantially rectangular opening 151, within which islocated the feed cam 144. The upper part of the plunger 145 is connected to an operating extension or lip 153 by means of a web that passes out through a slot in the casing member 147; The lip 153 overlies the lifting cam 142, the action of which is opposed by a com pression spring acting through a pin 155, the

initial stress in which spring is controlled V by a thumb screw 157. The whole arrangement is such that upon the rotation of the shaft 7, the feed foot 141 is urged downwardly by the above-mentioned spring to grip the work, is then carried rearwardly or toward the left with a feeding movement by the cam 144, and is then moved upwardly and toward the right to its initial position by the combined effect- 0f the cams 144 and 142, the complete path being an ellipse with a fiattened lower side.

The work-feeding foot 141 carries also the tape-feeding foot 161, which comprises a bar extending substantially the full width of the work-feeding foot and having its acting face corrugated or roughened. The bar is carried upon the lower end of a vertical slide 163, mounted in a vertical guideway in the left hand face of the work-feeding foot, and is pressed downwardly by a spiral spring 165 against co-acting stops carried by the work feeding foot. When in its lowermost position, the work-feeding face of the tape-feed ing foot 161 is flush with or slightly below the work-feeding face of the work-feeding foot 141.

In order to lead the tape into the proper position, a tape-guiding tube 171 is provided. This tube has a cylindrical shank 173 and is mounted for rocking movement about its longitudinal axis in a carrier member 175, which itself is pivoted at its upper end upon a transverse pin 177 retained in a horizontal slot 179 (Fig. 2) in a bracket 181 carried by the head of the machine. Since the tape passes longitudinally through the guide 171, the above-mentioned axis about which the tube is mounted for rocking movement is also longitudinal with respect to the direction in which the guide is constructed and arranged to guide tape. The pin 177 is normally pressed rearwardly or toward the left by a spring, not shown. The rear lower end of the tape guide 171 passes to one side of and close to the work feed dog 143 and is held in correct vertical position by the tension on the tape, the rear lower end of the guide being closely adjacent to the tape-feeding foot 161. The provision for axial rocking movement of the tape guide has been found parti cularly useful in laying tape upon the work in a curved path.

For the purpose of cutting the tape at the completion of the tape-laying operation, means are provided which will now be described. These include a thin bladed knife 191, as shown in Fig. 6, which is located immediately in front of the hammer 121 and immediately in the rear of the tape-feeding foot 161. The knife blade is arranged to move in its cutting stroke with a draw out in a direction widthwise of the tape across the work support from left to right, as viewed in Fig. 1. The blade 191 is carried in the lower end of a bent lever 193, which is pivoted for swinging movement upon a pin 194 to a cover plate 8 or cap which closes the end of the arm 5 of the machine frame.

Adjacent to the pivot 194 of the lever 193 is a vertically movable plunger 195, mounted in a. tubular casing 196 and normally held in elevated position by a compression spring 197. The plunger 195 carries at its lower end a small roll 199, located in a cam groove 201 in the body of the bent lever 193, the arrangement being such that upon depression of the plunger 195 the knife will move from left to right to cut the tape. As shown in 'Fig. 6, the plunger 195 is depressed and the blade 191 occupies its final position in its cutting stroke. In order that the point of the blade may be normally clear of the work and the tape, the pin 194 of the knife holding lever 193 is located in a vertical slot in the cover plate 8 so that on depression of the plunger the knife is first moved clownwarclly toward the tape and thereafter toward the right widthwise of the tape. The spring 197 which elevates the plunger 195 also elevates the bent lever 193 to initial position in which the pin 194 engages the upper end of the vertical slot.

The knife is connected to a treadle of the machine in such a manner that release of the treadle will automatically cause the knife to operate. Overlying the head 198 of the plunger 195 is one end of a lever 203 (Fig. 1) which is pivoted upon a pin 205 to the overhanging arm 5 of the frame. The other end of the lever 203 carries a cam roll 207 which overlies a rocking cam 209 formed on one arm 211 of a bell crank lever pivoted upon the arm 5. The other arm 213 of the bell crank lever is connected, through a treadle rod 214, to the treadle which operates the work-supporting post 81. A. spring 215 (Fig. 1) serves normally to hold this treadle raised. The arrangement is such that the knife plunger is normally held down when the treadle is raised, as shown in Fig. 1. When the treadle is depressed to raise the work support, the cam 209 is moved so as to permit the plunger 195 to rise and swing the blade to the left, as seen in Fig. 6, into a position in which it is ready to out. At the end of the operation when the work support treadle is released, the knife plunger is immediately depressed and the knife actuated to sever the tape. The cam 209 and its connections are so designed as to cause'the severing operation to occur before the work support has begun to drop. Thus the operator can sever the tape while the machine is running and the severed end may be laid upon the work before the support drops.

It is desirable that the tape should be firmly held in the cutting operation. It will be understood that when the machine stops, the hammer 121 is in its lowermost position so that it holds the tape to the work at a p int assassibeyond the pathof'the. severing. knife. To

hold; the tape at the other side oftheknife, mechanism is provided WhTChEWill now be described. I

Mounted in hearings in the side ofthe overhanging: arm- 5 is a1horizontashaft or spindle 221 (:Fig. 1) carrying. its v3 hand end an arm 223 which: is held by .1 torsion spring 225 against .a lip 227 project ing upwardly in the clutch lever 81. J This arrangement 198L181; that when til-supper [end of the lever 31 is moved outwardly in star ing the machine, the shaft 221 is rocked so as to move outwardly the lowerend of 229fiXed to and depending from its left-hand end. The arm 229 carries a flat lZ -ShZ1I)d member 231 which embraces a roll 233, on the upper end of an arm 235, the lower end of which is pivoted to the tape tube carrier member 175. The upper end of themember 235 has a lug that projects into a-vertical slot in the'bracket 181'. The arrangement is such that when the clutch is' disengaged in bringing the machinete rest, the arm 229 will automatically rock thetape tube about its transverse pivot 177- to raise the lower end of the tube'and so force the tape upward- 1y against the toothed under surface of the tape feed foot 161. l The teeth. on the surface of the latter are directed against movement of theta-pe inthe direction whichwould he' caused-by the cuttingstrain of the-knife. The work-feeding foot 141' is-raised from-the workat this time, as is also t-hetape'feeding foot 161". v

The shaft 221 has pivoted uponita tapeclamping arm 211 which isncrmally pressed by a torsion spring? 2 13 in a direction torclamp, at its lower end, the tape aginst aledgeor pro jection on the bracket 181-, VVhenthe machine is startecha pin 2 15 on the arm; 229lifts the clamping arm 2 11 and frees the tape. Thus when the machine isstopped, the tape is held by the hammer and the tape-clamping arm 241- and is stretcheda'cross thetape-feefoh in}; foot by the lifting movement of thetape tube 171 and thus 'tensionedrea'dy for the severing operation by the blade 1-91. The

arm 229 has-fixed to; it a finger lever 23 0by which it can be operated, if desired, independently of the treadle sothat the tape can be released for adjustment without starting.

zontal guide roll 188 locatedbetween the flanges and upon the pivot pin 177,- then through the tubular guide 171', under the tape-feeding foot 161 and finally under the hammer 125. When-the machine comes to. rest atthe end of the taping operation, the

tape?- stretches between the front edge of the hammer, where it is held to the worlrandthe horizontal guide, roll; 188- at an. angle: to the horizontal of about thirty degrees;

The operation of the machine will be apparent from; the foregoing description but may be summarized as follows. When the 1; machine has, been stopped normally by rais+ ing; the clutch treadlej; itcomes to rest with the haminer down and! thework-feeding foot elevated and in rightrhand position.

lf-taping is to start from? within themargin of the Work,,then the work is inserted in the machine above the anvil before elevating the. work support. Lhereafter, the post 81is-1iftedto press the worlr, by means of the anvil- 101, against the under sideof the hammer 1121. If taping is to start fromthe edge-ofthework', it may be preferred: t'oraise the-work support first and then-to insert the work; in the ma chine with its rear edge against thefr'ont of the hammer and restingon thetop front edge of the anvil The clutch treadleis then depressed, whereupon the clutch lever 31 acts first to cause movement of the tape-clampingarm'v 24 1; forwardly to'release the tape and} thereafter to cause the clutch to engagev and the driving shaft 7 tolbe operated..

The work-feeding foot and the tape feeding- 'foot now descendand the tape-feeding foot161 actsto seal the free end of the-tape to-the surface of the work. The work-feed ing foot and the tape-feeding foot therrmovetoward the left, advancing the worlri and tape within rangeof the hammer 121 which has been heretofore elevated out of engage-I ment withthe work. scends and the work-feeding foot is elevated in returning' to initial position. At. the finishof the taping. operation, the clutch: is disen- The hammer then de 7 gaged' and the machine stops with the ham- 7 mer down so as to gripthe work andt'apeupon the anvil 101, and at the same time the tapeclamping 2 11 is permitted to move inwardly and clamp the tape. The tapetube' 191, is then rocked. to stretch the tape across 7 the feed foot. On the release of the work support treadle', the knife 191 operates to.

severthe tape. and the anvil drops to release the work. WVhen the machine isre-started, the ,tape tube 171 rocks into normal position and that small amount of tape which was.

located beneath thetape-feeding foot 161, or wrappeda-round the-foodie carried into a position in whichit will be acted upon by the tape-feeding foot in its-first stroke, so a's'to seal the tape to the surface of the work preparatory to. a new taping? operation:

It has beenfbund that upon certain" classes ofvery light work, it is adyantageou's todispense with the separate work-feeding. foot and to feed boththe workand the taperby the same-instrumentality. To,this end,'.there feedfoot 311 and tape-feeding foot 3.61 which is disclosed in Fig. 7 an alternativeform of" out of contact with the work.

will now be described. In this construction, the work-feeding foot 341 is carried as in the construction previously described upon the lower end of the plunger 145. The feed dog 343 is pivoted by a pivot pin 301 to the feed foot 341, a spring 303 holding the feed dog downwardly so that an arm 305, projecting therefrom, contacts with and is positioned by a stop 307. The stop 307 has a flat side which locates the feed dog in operative position and acurved side which may be made operative to swing the arm 305 in a clockwise direction, so as to lift the feed dog-343 and hold it In this case, the feeding is efiected by means of the tapefeeding foot 361 only and in this case the tape-feeding foot is formed as a part of the Work-feeding foot 341.

Having thus described my invention, what I claim as new and desire to secure'by Letters Patent is:

.1. A tape laying machine, having in combination, tape feeding and pressing instrumentalities, and an elongated tape guide mounted for rocking movement about an axis which is longitudinal with respect to the direction in which the guide is constructed and arranged to guide tape.

2. A tape laying machine, having in combination, tape feeding and pressing instrumcntalities, a tape'guide the delivery end of which is movable between said feeding and pressing instrumentalities transversely to the direction of tape feeding movement to tension the tape to facilitate cutting thereof, and

means for thus moving said tape guide.

3. A tape, laying machine, having in combination, a work support, a tape feeding foot, said support and foot being mounted for movement toward and away from each other, and a tape guide for leading tape to said foot, said guide being movable to draw the tape about the feed foot when the latter and the support are separated at the conclusion of a taping operation.

' 1 hammer arranged to clamp the tape to the work at the conclusion of a taping operation, a clamping device controlled by the starting and stopping mechanism to clamp the tape at a point'remote from the work when the machine is stopped, means also 0011- trolled from the starting and stopping mechanism for-tensioning the tape between its clamped points, and a knife for severing the te'nsioned tape. 7

6.- A tape layingmachine, having in comabove the path in which the tape is directed,

and means for successively lowering the knife bodily and swinging it to sever the tape.

8. In a tape laying machine, means for directing tape to its point of application upon a piece of work, severing mechanism including a knife movable widthwise across the path in which the tape is directed and located normally out of said path, and means for first moving the knife bodily toward the tape and then for imparting to it a severing stroke 5.;

widthwise across the path of the tape.

9. In a tape laying machine, severing mechanism including a knife, a pivotally mounted knife-carrying arm, a plunger movable in a path adjacent to the arm and hava.

ing a pin and slot connection with said arm, a spring for moving the plunger in one direction and treadle controlled means for moving it in the other.

10. A tape laying machine, having in combination, tape feeding and pressing devices, a tape severing knife, a work support movable toward and from said tape feeding and pressing device, and a single treadle for controlling the position of the work support and for controlling the action of the severing knife.

11. A tape laying machine, having in combination, tape feeding and pressing devices,

a tape severing knife, a work support con- 1 structed and arranged to be maintained in posltion adjacent to said tape feeding and pressing devices to present the work thereto, and a single treadle operable upon a single movement both to release said work support i k from said position of presentation and to cause said knife to cut the tape.

12. A tape laying machine, having in com bination, tape feeding and pressing devices, an oppositely disposed Work support movable bodily toward said devices to present the work thereto, an adjustable stop for determining the operative position of the work support, a treadle actuated cam, and yielding connections between said cam and Work support for moving said work support toward said tape feeding and pressing devices.

13. In a machine for applying pressure progressively along a work piece, a work sup- 7 port, means cooperating therewith for pressg. rel

ser-tion of .an untreated work piece therebetween, and mea s connec ed wi h smdia mentioned means arranged to1cause said pressing means and work sup-port yieldingly I .to press the work when :brought together.

14. A machine for, applying pressure progressively along a Work piece having, in

combination, pressing means, aork support .movable toward and from said pressing means, .means movable in one direction to cause said support to approach said pressing -means and to allow said support to recede from said pressing meanswvhen-moved inithe opposite direction, .and connections between saidsupport and said means forcausing said support yieldingly to sustain the work against the pressure of the pressing means.

115. Ina machine for applying pressure progressively along .a work piece, pressing means a work supportmovable toward and away from said pressing means, means for controlling the movement of said work support, means for adjustabl'y limitingthe proriinal position of the work support with respect to the pressing means, :and connections :between said supportand said means forcontrolling the movement oisaid support con- 'str etedandarranged to .causethesupport yieldingly to sustain the work against the pressure-of the pressing means.

1 6. In a machine for applying pressure progressively along a work p1ece, pre ssing means, a work support, means for yieldingly sustaining said avork support against the pressure of said. pressing means, .and means connected with said last-mentioned means operable in one direction toomove said supporttoward said pressing means and in the other toallow their separation.

17. In a machine for applying pressure progressively along .a work plece, pressing means, worknsupport, .a cam movable to cause a movementof the work support to- ,-ward the presslngmeans, and means operated by said cam for yieldingly sustaining the work support against the pressure of said pressing means.

18. In a machine for applying pressure progessively along a work piece, pressing means, a work support,atreadle-operatedcam for moving said Work support toward said t0 iac t i sernr an re r a ed wart pie e-1t .er hetweea and meane ii l li sl-y sustaining sa d lippera ai st th .pi su .o LiQ;P1 -.Q i.Il. .Q AS disrs b tween said suppor and said ram wh r y the separation of the s i ipport andpressing is fiectedwit is re s n sai y .i nsans- 2.0.1. a m hin to app y n .rre ur progressively z- -long ,a work l piece, 1 in combination, a w n rsurr rt, mean re reat n therea th to pres a wor api erted there e ween, '7 s ppo 9 3 l l post, a cam for movingsaid;work support tosaid pressing mean an a sle m r nte to s1" 1. o dfl" l1 QPWQWd-w y said p i nd yield ng me n conneqting sai eere ands i .pos hy-sai W r pp r i Q l Q y ld ns ya li th i o k againstth pre ing me n 21, machin hav nga work sapre eed press ng .in an zcoet rat ng therewi h, ean for operatlng saldpresslngmeans topress a work piece against said support and to causeja feed movement ,of the work piece,

EfQ qya eldingly .sus aini gsai M 21 ,su-pportiagamst th p e ur .Q- sa d press- ,ing n ea s, means operab .3 0 th 1t-i n'2 0 mov said. suppor an its us aining mean bodi y toward pre ing mea a war p a agains said .suppe an t nausea-feed movemen ithe iee o er-t suppor rmea m va an onadirection to.cause am ementeof hemo k s pporttowa d said pressing means and movable ,in another diirectien toia lowt Wor suppo tor c orn s p e sing m ans, and mean smil d @bodllvby said ;last-, ntioned means ior yieldingly sustaining the ork support against the pressureei ,said pressing means;

-. 12, .Atap zlayingnia hir ,havi g C nati n, tap feedi g and. pre i g (l r a rpo it yd i pos dwer a rpo mp ingapost, asleeve-having,alostmotion connect ion with the post,v a spring interposed between the post and sleeve, atreadle actuated cam actingthroughthe sleeve to move the w r uppar t war s t p d g an pressing devices, and means for a djustably limiting such,movement of the post.

24. In .a tap6 laying machine a workfeedl ,ing; foot Lhaving'. awork engaging face, a tape feeding foot carriedby the work feeding-foot and egitending transverselybeyond the ;l atter soto,apt-upon the tape atone side .of the line of Work feed. a

: a t p layingrmach ha. ir d foot.

hav ng aworke g gi g P0 13 93, da tap engaging portion located at one s de thereof relamrelrtet ezcllreetiqniotif1. d P

ati gwsai arr singanean t r aus it t P s 9 tions of the feed foot acting to advance simultaneously the work and the tape, and means for rendering said work feeding portion inoperative, whereby the tape feeding portion may act to feed the work through the tape superposed thereon.

26. In a tape laying machine, a combined work and tape feeding foot comprising a block having atape feeding portion, a work feeding dogpivotally mounted on one side of the block, and an adjustable stop for determining the position 'of said feed dog whereby it may be rendered operative or in operative for feeding the work. I

2'7. In a tape laying machine, a swinging work support, a feed foot, means for operating said feed foot to press the work against said support and impart a movement to the work and the support in the direction of feed, and means for urging said support in a direction opposite to that of the feed of the work whereby the work support is returned to its initial position at the end of the feeding movement.

28. in a tape laying machine, an oscillating feed foot, a work support movable bodily to present the work to the action of the feed foot and having a portion arranged to move with the feed foot during the feeding movement thereof, and means for causing the said portion of the work support to return to its initial position at the end of the feeding movement. I

29. A tape laying machine, having in combination, treadle controlled starting and stopping mechanism, work feeding and pressing devices operatively associated therewith, a work support movable from said work feeding and pressing devices to facilitate insertion of the work, and movable toward said devices to present the work to said feeding and pressing devices, a tape cutting knife, and treadle mechanism for controlling the position of the work support and the action of the tape-cutting knife.

30. A tape laying machine, having in combination, work feeding and pressing means, a tape cutting knife, resilient means for maintaining said knife normally in a position at the extremity of its cutting stroke at one side of the tape, and means for moving the knife into a position of readiness for its cutting stroke at the other side of the tape prior to a taping operation. 7

81. A tape laying machine, having in combination, work feeding and pressing means, a tape cutting knife, treadle controlled mechanism for maintaining the knife in an inoperative position while the machine is at rest, and means acting when the machine is started for positioning the knife preparatory to making a cut, the treadle controlled mechanism actuating the knife subsequently in its cutting stroke.

- 82. A tape laying machine, having in combination, work feeding means, a hammer movable in a yielding manner to press the tape upon the work, and awork supporting table movable toward and from the hammer.

83. A tape laying machine having, in combination, means for feeding tape and work and for pressing the tape upon the work, and a work support for holding the work against the pressure of said feeding and pressing means, said work support being formed in two parts each having a work engaging surface, one of said parts being constructed and arranged to partake of the feeding movement of the work and the other of said parts being maintained stationary with respect to the feeding movement of the work.

34. A. tape laying machine having, in combination, means for feeding a piece of work, means for pressing adhesive tape upon the work, and a work support formed in two parts each having a work engaging surface, one of said parts being constructed and arranged to support the work against the pres sure of said feeding means and to move with said feeding means in the direction of feed of the work, and the other of said parts being constructed and arranged to support the work against the pressure of said pressing means and to remain stationary with respect to the feeding movement of the work.

35. A tape laying machine having, in combination, a work feeding foot, a hammer for pressing adhesive tape upon the work, and a work support formed in two parts, one of said parts being constructed and arranged to support the work against the pressure of said feed foot and to move with said feed foot in the direction of feed of the work, and the other of said parts being constructed and arranged to support the work against the pressure of said hammer and to remain stationary with respect to the feeding movement of the work.

36. A tape laying machine having, in combination, means for feeding tape and work and for pressing the tape upon the work, and a work support movable bodily to present the work to the action of said feeding and pressing means, said work support being formed in two parts for. supporting the work at two points respectively, one of said parts being movable in the direction of feed of the work and the other said part being stationary with respect to the direction of feed of the work.

in testimony whereof I have signed my name to this specification.

WlLLlAlll THQMAS BUCKINGHAM ROBERTS.

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