US1296960A - Staple forming and setting machine. - Google Patents

Description

M. R. u-urcmsomi STAPLE FORMING AND SET TING' MACHINE.

APPUCATION FlLED FEB. 19, (916. 1

1,2963, Patented M ar.11,1919.-

5 ET$-SHEET 1.. 5 5a INVENTOR.

' ATTORNEY M. R. HUTCHISON. STAPLE FORMING AND SETTING MACHINE.

APPLICATION FILED FEB. 19, I916- Paten ted Mar. 11,1919.

5 SHEETS-SHEET 2.

M. H. HUTCHISUN. STAPLE FORMING AND SETTING MACHINE.

APPLICATiON FILED FEB-19,1916.

' Patented Mar. 11, 19151 5 SHEETS--SHEET 3.

LQQSEGQY f5. l o an 32 7 A TTORNEYS.

Patented Mar. 11,1919.

5 S EETSSHEET 4- F KB. I O

Z J w w WWW? a 0 1 o W 5 0 W 2 M mm 0 MT 2 .i W/ME Z Z I.

ATgORNEY M. R. HUTCHISON.

APPLICATION FILED FEB. 19, 1916.

STAPLE FORMJNG AND,SETHNG MACHINE. 1,296,966.

M. R. HUTCHISON'.

STAPLE FORMING AND SETTING MACHINE.

APPLICATION HLED FEB. 19, I916.-

Patanted Mar; 11, 1919.

5 SHEETS -SHfET 5- i r JNVENTOR.

' 4 ATTORNEY.

mg v is a specification.

MILLER REESE HUTCHISOBI, OF WEST OHMIGE, NEW JEESE'E'i i H smarts romaine awn SETTING nacrrinn.

To all whom it may concern: I

Be it known that l, MILLER Reese l-lwrcnison, a citizen of the United States; residing in i -Jest Orange, county of Essex, and State of New Jersey have invented certain new and useful Improvements in Staple Forming and Setting Machines of .which the followlhis invention relates to machines for forming and setting staples such as areused vfor fastening together sheets of papenor for other similar purposes, and it is designed primar ly to provide a, simple mechanism which will take-the wire or material for forming the staple from a spool, or

other source of supply, cut the same ofi 111 proper length, form the same into a'staple and driveand clench the staple. As will beapparent, however, someof the features of improvement hereinafter set forth may be employed with advantagefin machines which do not perform all of the operations indicated. I

The objects of the invention are ingeneral to provide a machine of the character descr1bed,'of very simple and strong construction, which shall perform the necessary operations with preeision,'which shall possess great durability, which shall be capa ole of handling the wire without liability of the latter becoming deranged in themachine so as to interfere with its proper oper ation and which shall be easy to operate and to replenish with staple-forming material.

A more specific objectof my invention is the provision of a staple-forming and setting machine which shall be of such small dimensions and simplicity of operation that it is adapted for general ofice use and which can be constructed at so low a price as to make it generally available for such purpose.

in the accompanying drawings which form a part of this specification and which illustrate one preferred embodiment of my 'inventionvin the form of a compact hand operated paper fastemng machine, Figure l is a plan view of the machine with the cover removed. Fig. 2 is atransverse' vertical section through the machine taken on line ll'l1 of Fig. 1. Fig. 3 is a fragmentary end View of the machine a part of the end plate of the frame being broken away and portions of the machine being shown in section, illustrating the-parts ai a1- a partial movement of the operating Specification of Letters Patent. Paitgntfiql Application filed February is. 1916. Serial in. 79,241.

handle has taken place, and the wire for forming a staple is about to be cut 05.

'Fig. 4. 1s a front vertical sectional View of the parts shown in Fig. 3 taken on line Iv -1V of F ig. 3. Fig. 5 is a View similar to Fig. '1 showing the staple partly formed. 6 is a view similar to Fig. 3 showing the staple formed and the staple setting plunger about to begin its movement. Fig. '7 is a front sectional view similar to Fig. l showing the parts in the position' illustrated in Fig. 6. Fig. 8 is a View similar to Fig.6 showing the parts at a .slightlyadvanced stage in the cycle of operation, the setting plunger having begun its action of forcing back the staple-forming horn and having just engaged the staple. Fig. 9 is a View similar to Figs. 8, 6 and 8- showing a further advance in the cycle of operation, the plunger. having forced the staple partly through the papers. Fig. 10 is a front sectional view showingthe position of'the parts indicated in Fig. 9. Fig. '11 is a view similar to F ig; 9 showing the final position of the parts and the staple clenched to the paper. Fig.12 is a front sectional View showing the parts in the'posi tion shown in Fig. 11. Fig. 13 is a. plan View of the clenching. anvill Fig. 1a is a sectional View through the same on line XEVXU ofFig. 13.. Fig. 15 is a per- Mar. ii, leis.

spective view of the underside of the paper,

orotlrermaterial, showing the ends of the staple clenched thereto. Fig. 16 is a perspective view of the Wire-feeding mechani'sm. Fig.1? is a perspective View of the apparatus with the cover in place showing the guide marks for assisting in properly locating the articles to be stapled in correct position. Fig 18 is a vertical sectional View through the wire-holding spool mounted on its support. y

Supporting base. Reierring to the draw ings in detail the numerall designates a base provided with end walls 2 and having a suitable slot or pocket 3 formed in its front.

. edge'to receive the papers-to be fastened.

The base preferably provided with a forwardly-pro ecting inclined 11p, 4; to assist in guiding the papers intothe pocket. The

base, end walls and )ocket may conveniently be formed as an integral. casting although this is not essential.

a; storing and tensional" mcam.-- Mounted in the base is a stud 5, which-forms a bearing for a spool 6 upon which is wound a supply of wire or strip 7 which is used for forming the fasteners or staples. Such a spool may contain enough wire to form a great many thousand staples so that the machine has to be recharged only at long intervals. Suitable means are preferably employed for preventing too rapid unwinding of the wire from the spool and producing the proper tension on the wire, these means, in the form of apparatus illustrated,

. comprising the leaf spring 8 which is slipped over the upper end of the stud 5 and held in frictional (engagement with the top of the spool by suitable means such as the nut 9. The spring 8 is prevented from rotating with the spool by having its end held between the ribs 10 formed on the end wall of the base. In order to make sure that the spool will be properly placed in the ma-' chine withthe wire" leading from the, side thereof adj acentto the wire-guiding means,

the spool and its support are preferably so formed that it is impossible to placethe spool 'incorrectly.' This may be accom plished in any suitable manner, for example i as shown in Fig. 18, by formingthe upper part of. the stud 5 as a portion of ,reduced diameter 5 the opening 6 'in the lower part of the spool being large enough to pass over the large diameter of the stud, while the opening 6 in the upper end of the spool is of suiiicient size only to go over the reduced upper end of the stud. For convenience-the upper end of'the spool preferably bears a suitable legend such as This side up. Wire-stmightening. 'means.The. wire 7 after leaving the spool, passes through a guide 11 Which, as illustrated, is in the form of a small tubular member and then through a straightening device 12 which, as shown,

comprises a pair of grooved pins or disks 13 and a cooperating flanged guide 14:, these members 13 and 14 serving to strain the wire beyond its elastic limit so as to take the kink out of the wire and cause it to travel in 'a straight line to the. staple-forming mechanism without springing out of alinement, owing to itsprevious coiled condition. In order to separate the members 13 and 14 to permit a new wire to be inserted between them and to provide for adjustment, the'guide 14 is preferably eccentrically mounted upon a pivot screw .15 and is provided with an operating finger lti by feeds the same to the staple-forming mechanlsm. Tlns feeding device may be of any suitable construction and location to accomplish the desired purpose, but as illustrated (see particularly Figs; 1 and 16) itcomprises a slide 20 mounted to reciprocate in a groove 21 formed in the inner face of a front plate 22 secured at its ends to the end walls of the .base. The slide 20 carries a yoke-shaped stationary gripping jaw 23 provided with teeth 24: on-its inner end surface and a movable jaw-25 pivoted at 26 to the side members of the fixed jaw and having teeth 27 which cooperate with the teeth of the fixed jaw to grip the wire. I A spring'28 holds the jaw 25 a 'ainst the wire. The movable jaw face 27 eing offset with relation to the pivots 26, it will be seen that as the slide 20 and jaws move toward the wire straightening device they will slip freely along the wire, but when moved in. the opposite direction the jaws will firmly grip the wire and carry it with them. Any suitable means may beemployed for reciprocating the wire-gripping. mechanism, these means being shown as comprising the lever 29 mounted on the pivot 30 and'having a slot 31 in itsouter end adapted to receive the pin 32 projectingfrom the fixed jaw 23. The lever is forced in a direction to feed the wire forward by means of a cam 33 having an inclined cam face 34, which engages with a roller 35.mounted on the le'Ver,-the cambeing mounted on a shaft 36 which in the form of my invention illustrated constitutes the main operating shaft of the machine. When released by the cam the lever is returned to initial position by aspring 37 attached to an arm 38 projecting from the hub of the lever. The shaft 36 is supported in any suitable manner, one end being shown as journaled in an upright 39 rising "from the base of the machine, while the other end isjournaled in the end wall. The shaft is adapted to be partially rotated or oscillated by means. of a handle or handlever 40 secured thereto.

Cutting-07f and stapling-forming mechanism.The wire is fed by the feeding mechanism through a hard metal die'50 mounted in a lug 51 projecting upwardly-from the base (see Fig. 4:). This die forms a stationary member of a cutting mechanism the movable member of which comprises a hard metal" shear 52 having a cutting edge 53 and which is secured in a recess'in the side of the staple-forming head 54. By this conv struction, which is very strong and simple,

the. movement of the staple-forminghead first cuts ofi the wire and then forms it into a staple, as-will be described; but while this is a preferred mechanism 'it will be understood that thecutting mechanism may if desired be of any other suitable form than that shown, and may be entirely separate messes from the stapleforming mechanism. The stapledorming head 5% therein. The head is also provided with a guideway' 58 in which slides the driving or setting plunger 59 which will be further described hereinafter. The forming head is mounted so as tohave an up and down movement for cutting ofi the wire and formwing the staple, the preferred method of tion.

' being nornially held in pro ect d mounting being that illustrated in the drawings in Which the head forms the end of an arm which is pivoted at 61 to the base. The arm and head are preferably raised position by springs 62 (see Fig. 2). lhe head and arm 60 are adapted to be forced down'by a cam 63 mounted on the main shaft 36 and preferably constituting the inner end of the operating lever e0.

his cam engages a bearingsurface. 64 on the arm and is shaped to provide a dwell or portion of substantially constant radius 65 which permits a certain amount. of" movement of the operating handle to take place before the head begins its downward movemen-t. The dwell 65 is followed by an, active surface 66which forces down the arm and head'during a further period of move ment of the operating handle after which a second dwell 67 1s-reached upon the cam (see Fig. 9) which serves to hold the head down while the final movement or the operating handle drives and clenohes the stap'le as will be described later.

For holding the section of wire after being cut oil and to cooperate with the formthe staple, a staple ing head i in forming ZllllS forming block or horn'ZO is provided. block has an open sided slot 71 face through which the wire is fed before l ig. l, and in which the wire is held after heing cut ofi and during the forming opera- The front face of this block is provided with inclined or cam surfaces 72 and '23 fora purpose which will be hereinafter expla ined,the upper of these surfaces prererably overhanging the lower slightly as shown. This forming block or horn is suitably mounted for reciprocating movement preferably directly upon the base 1,.it being shown as having a shanir 7% which slides in a guide Y5 mounted upon the base, and it 0 position by a spring 7'? mounted on a stem 'ZSand compressed between the shoulder i? i'orrned the end of the shank i l and a lined abutment 80 securedto the base. (See lFio'. The bifurcation in the lower end or the forming head is of just sufiicient width receive the horn 5'0 and to term the staple by bending the end portions 81 of the secslot 'Z'l of the horn.

held in in its front til tion of Wire'over the horn so as to form. the legs of the. staple'as shown in Figs. 5, 6 and. 7, these legs being received in the grooves 5'? in the cheek pieces 56, while the center or body portion 82 of the staple is held in the lhe operation of the cutting ed and tonn ing mechanism willnow be apparent. lit will be seen that as the arm and forming head are forced downward by the active surface66 of the cam 65 the section of wire held in the groove 71 in the horn will first be cut 05 by the cutting edge 53, whereupon the engagement of the corners of the jaws or check pieces 56 will immediately bend down the staple legs 81 as shown in Fi 5, the forming head continuingits movement until the staple is completely shaped with its legs parallel, and heldfirmly in position in the grooves in the cheek pieces, as shown in Fig. 7. The dwell 67 on the cam is now reached so that the forming head is maintained in its downward position during the further operation of the handle which brings into action the staple-driving and clenching devices now to be described.

Staple-driving. and done/ling medianm'sm.-,-The driving or" the staple formed and held as described is accomplished by the driving plunger 59 above-mentioned. which is slidably mounted in the recess 58 in the formin head and held in such recess by the front p ate 90. lhis plunger moves with the forming head during the operations of cut ting 0% and forming as above de'scibed, it being held in its uppermost position, as shown in Figs. 2 and 3, by any suitable so A means such as the spring 91 engaging a lug at the proper time to receive the body poi- 'tion 82 of the staple, and it'preferably has its inside lower corner rounded, as indicated P l I 1 I n at 96, Ior engagement with the nclined surfaces 72 and *4'3 oi the horn. Suitable means are provided for forcing down the plunger,

thisiunction being accomplished in the construction illustrated by the direct engagement of a projection 9? formed upon the handle 40 with "e pper end oi the plunger, as shown in Fi 6, '8 and 9. The nrst downwarc. movement the plunger with reference to the forming head causes the rounded corner 96 engage the surface 72 on the horn, and owing to the inclination of such surface to force the latter backward as shown in Fig. 8 so as to withdraw the slot therein from engagement with the body of the s is, the latter being meanwhile firmly held the which are retained between A in'yn't.\ the grooves the eneel. ier-es oi c119 torming head and sides of the horn. The body portion of the staple is now engaged by the groove in the lower endv of the plunger and the staple is forced down by the continued movement of the plunger and its legs driven into the paper or other material into which the staple is to be set, which is inserted in the slot 3 in the base as indicated by the broken lines 98 shown in Figs. 9, 11 and 12. As the forcing down of the .staple progresses the horn is further retracted by the engagement of the corner of the plunger with the inclined surface 7 3 of the horn, as shown in Fig. 9. Thus it will be seen that the legs of the staple are firmly held between the cheek pieces and the horn during the actual driv ing operation. The legs of the staple when driven completely through the paper engage the clenching anvil 100 as shown in detail in Figs. 13 and 14, which is provided with the grooves 101, which serve to turnover and guide the lower ends of the staple so as to clenchthe same over underneath the paper as illustrated in Figs. 12 and 15. The clenching anvil preferably comprises a separate hard metal die set ina recess102 in the base and-held therein in any suitable manner as by the screws 103, shown in Fig. 2. As shown in Figs. 13 and 14 the grooves 101 are preferably deeper at the ends first engaged by the respective legs of the staple, so as to bend the same over, not too sharply, and to cause the 'ends to be directed upward at'a reentrant angle. The ends of the staple legs will thus be forced back into close contact with the paper or caused to actually enter thereinto, as shown in Figs. 12 and 15, thus burying the sharp ends of the staple and making a smooth finish which will not catch upon other papers or'cause scratcln A pair of clenching grooves 101 arranged diagonallywith respect to the axis of the body of the staple are preferably provided, although this is not essential if the staple legs are so formed as to not. overlap. WVith the construction shown, however, it will be seen that the staple legs may be made'long, but willpass by each other, thus giving a very firm grip, As much pressure as is desirable may be applied to the operating handle and transmitted from the latter through the plunger to the staple so as to cause the same to grip, and, if necessary, tightly compress the paper.

In order to facilitate the starting ofa new piece of wire through the'apparatus'a slot 110 is preferably formed in the end Wall beyond the forming head so as to permit the wire to be pushed beyond the latter and pulled from the outside, thereby securing perfectly straight length of wire through the machine. By thenmanipulating the de vice so as to cut off. this extra long piece of wire the apparatus will be placed in condition for regular operation. Unless this is done there may be difficulty in causing the wire to start feeding properly as there'will be a tendency for the wire'to buckle up between the feed jaws and the dies unless it is perfectly straight.

Non-return ratchet-As a precaution" vide a ratchet mechanism which will prevent the reversal of direction of movement of the operating parts except after thecompletion of a stroke in either direction. A suitable mechanism for this purpose is shown which comprises a ratchetwhcel 111 fi ed to-the shaft 36 and having a large number of small teeth 112 and also carrying two pins or stops 113 and 114C. The ratchet wheel also has formed in it adjacent to the stop 113 a notch 115. coiiperating with this ratchet is a double-acting pawl 116 having,

two prongs 117 and 118v and which is pivoted at 119 to lugs 120 rising from the base. The pawl also has a rearwardly-projecting tail 121 .which is adapted to cooperate with a spring 122. The latter is preferably formed with a wedge-shaped lug 123 at its endv which is adapted to act upon either the upper or the lower surface of the tail-and to cause either one or the other of the pawl prongs to engage with the ratchet depending upon whether the tail of the pawl is engaging the upper surface of the lug as shown in Figs. 2 and 9, or the lower surface thereof as shown in Fig. 11. The operation of this ratchet it will be seen is as follows: Starting with the handle in the position shown in Fig. 2 it will be seen that the ratchet will permit free motion of the shaft in the direction of the arrow, but that the pawl will immediately stop any motion in the opposite. direction. When the stroke forward has been completed, however, it

will be seen that the pin 113 will engage the lowerv prong of the ratchet whichit is shown about to do in Fig. 9. This engagement will'swing the ratchet about its pivot nal position, but it cannot .be moved only part-way back and then moved forward again, as the pawl whichnow occupies the relation shown in Fig. 11 will prevent this. When the handle has been moved back however the pin 11 1 will engage the upper prong of the pawl as shown in Fig. 2 and restore the pawl to its original position.

Goverami spacing mm*7cs.The machine is preferably provided with a suitable re movable cover such as is shown at 130, which nseoeeo fits down upon the base and. encl wells entl front plate 22 so as to completely inclose the I mechanism, it being shown as secured "to the front plate 22 by the screw 131' (see Figs 1 and 17). lhe cover is provided with e slot 133 through which the operating handle projects. Obviouslyony suitable form of cover or casing may he employed. in order to facilitate the proper'locetion of the staples at equal distances from the sides oi. a ioun lle of papers, or pamphlet, or the like, wh ch is-to be stapled at more than one-piece, 1n-

dicating'arrowsfi he 125 are preferably placed on the front ofth'e machine as shown vin Fig. 1?. The mark or arrow 1% is placed over the center of the clenehing die while the Inerkl2-5 will he placed at a distance from the arrow 124 equal to. the'clistance of whereupon he papers are slicl elong until.

the left-hand etlge of the papers is uncler the arrow-125when the next staple will hevset,

'0g mt0%. lhe operation of the machine it will nowhe seen is as follows: ihe wire having been lei irons the spool throi gh the guide, streightener, feed device, die e116;

forming memhers (as shown in Fig, 1) the papers or other article to ts stsplecl ere slipped into the slot 3. Lhe operating handle 40 is then pulled forward, the first device is rea 'z' to grip a second length of wire. The continued forward movement of the handle 40 causes the lift 66 of the care 63 to force down the forming heed thereby cutting of? the length of wire for the first staple and forming it as already clesoribecl, Further forward movement of th'e'hent'ile senses the projection 97 to engage the one or" the clriving pliinger and force the letter flOWD, which drives thesteple and; simulteneoirsly presses heel; the horn emi tiltinietely by forcing the legs of the staple into engagement with the grooves in the anvil clenehes thelegs oi the steple anti causes the reentrent points of the letter to press into the underside of the paper es has already heen set forth. Cihroughont the driving of the staple and until the legs ere substantially hurieql in the paper, will be seen that the staple is firmly sopportecl between the horn smiths grooved hook pieces of the forming" heed. Wien he staple has been dri en encl clenched he hnnclle is moved heel: to original peel employed illlCl-lil feet ii tion, either by hand or by means of a spring or otherwise. This movement permits the driving plunger to be restored to its initial position with relation to the forming head by the aetion of the spring 91, while the forming head is lifted. to its initial position by the spring 62. The horn is also restored to its position by the spring 77. All of these movements take place while the handie is moving from its forward position to a substantially upright position, as shown in Fig. 3., and during this time the feel lever has occupied its left-hand. posi tion as shown in dotted lines in, Fig. 1.

The further backward movement of the handle causes the cam face 34: to engage "the roller 35 and thereby feed the wire through the-die 50 and into the position shown in Figs. 1 and l, when the device is ready for another operation.

Thus it will be seen that the firstpart of the forwar-cl stroke of thehandle restores the feed device to sposition to feed. at second length of wire, wh1le' the last part of the forward stroke. cuts oh, forms and, olenehes the staple, while on the hack stroke the first part or the stroke restores the forming and driving mechanism to initial position,

machine in Vcondition for at second oper'a-.

ti'on. The entire operation of the device thus'requ-ires merely a forward enei hackwsrd movement of the handle which may be and preferably is less than 180 in extent, and all the operating pertsere driven from a simple rook shaft having the necessary cams and ratehets nonnted thereon. In fact in the. preferred construction shown the actual operationsv oi cutting oi" the wire, staple forming and driving are performed by parts driven directly by portions of the opereting henclle itself. The utmost simplicity of parts and the maximum er' fioieney of operation are thus insured.

it will he understood that numerous ehang'es in the organization of the appsetns and in the tleteils of construction of the various parts may he made without (leperting from my invention. For example the insehine may be driven by power or by e treaelle or niey cle in multiple form so as to set a phi I y o" spaced. staples at the some time. i snitehle wirestrsightening anal i etling cievices may be soin oeses certain parts of the; app; stirs t9; omitteclor utilized with 0th meshesisini For example the driving eienching devices eonld be so 0 tires. to set; oreviously formed staples erefore while 1 have illu'strsteel end 6 riheel in sletsil one pret'errecl embodiment of my invention i do not intentl to limit myself thereto, hut intend to cover my invention and the various while the last part of the heck stroke feeds features thereof broadly and in whatever form they may be embodied.

Having thus described my invention what I claim as new herein and desire vto secure and the other controlling the wire feeding means, whereby upon the operation of said lever the said means are actuated in a given sequence.

2. In apparatus of the class descrlbed, the

combination of means, for supporting a section of staple forming wire, amovable forming headfor bending said'Wire-intothe form of a staple and for holding and guiding said staple during the said operation, a setting member carried by said forming head but movablerelatively thereto, and means for moving said forming'head to form a staple, moving said setting member to setthe staple, and holding saidforming head in its actuated position while the said member is actuated, said means including a cam, one portion of the surface of which actuates the forming head, and another portion of the surface of which holds the said head in actuated position as set forth, and a'projection on said cam member adapted to operate the said setting member.

3. In apparatus of the character described, the combination of a pivoted arm, a stapleforming head carried thereby, a staple-setting'member carried by said head, a shaft, a cam lever mounted thereon, the cam thereof being adapted tocause said armto swing about its pivot so as to move said head and cause it to form a staple, and a projection extending from said lever for moving said staple-setting member relatively to said head to cause it to set said staple when formed.

4. In apparatus of the character described,

- the combination of wire-feeding means, stapie-forming means and staple-setting means,

a shaft, a cam on said shaft for operating said wire-feeding means, a lever mounted upon said shaft, a cam integral Withsaid lever and provided with an inactive surface which first becomes effective to permit said first mentioned cam to function upon the movement of said lever, said inactive surface on said cam member being followed by an active surface for effecting the operation of said staple-forming means, and said active surface being followed by a second inactive surface for retaining sald forming means in V a given position during the operation of said staple-setting means.

ing head in its actuated position while said setting member is actuated, said means including a cam, having an active surface for actuating the forming head to operative position, and an inactive surface for maintaining the head in operative position.

6. In apparatus of the character described,

"the combination of a movable staple-forming head, a staple-setting member carried by said head, but movable relatively thereto, and an actuating member havingra cam portion for operating said head and a projecting portion formoving said staple-setting member relatively to said head.

' 7. In apparatus of the character described, the combination of, a pivoted arm, a staple forming head carried thereby, a staple-setting plunger slidably mounted on said head, and an operating member having a cam surface engaging said arm to swing the same about its pivot andcause said head to move to form a staple and also having a surface thereon adapted to engage said plunger and move the same relatively to saidhead to set the staple formed'thereby.

S. In apparatus of the character described, a casing having an end wall, a stud mounted adjacent said wall and having a portion of reduced diameter, a wire containing spool having "heads, each of which is provided with a central aperture, one of said apertures being lessin diameter than the greatest diameter of said stud, a tensioning spring engaging one end of said spool, and means on said end wall engaging the end of said spring to prevent the latter from rotating with said spool.

9. In stapling mechanism, the combination of wire feeding and cutting mechanisms, staple forming and staple setting mechanisms; an operating lever for actuating said mechanisms by acontinuous movement in one direction, and means for preventing return of the operating lever to initial position until it has been moved to its extreme actuated position.

l0. In stapling mechanism, the combination of wire feeding andcutting mechanisms, staple forming and staple setting mechanisms, an operating lever for actuating said mechanisms by a continuous movement in one direction, and ratchet and pa'wl mechanisms controlled by said lever for preventing return of the lever to initial position before it has been moved to its extreme I actuated position.

'11.;111 stapling mechanism, the combination of Wire feeding and cutting -mecha- ---ifient in one direction, a shaft on which said -lever is mounted, a ratchet carried by saidshaft and a pawl controlled by said ratchet for preventing-movement thereof in a predetermined direction and thereby return of ,the operating lever to initial position before the lever has been moved to its extreme aotuatedposition. v 12. In stapling mechanism, the combination of wire feedin'g and cutting mecha- .nisms,-staple forming "and staple setting mechanisr'ns', an operating lever for actuatingsaid' mechanisms by a continuous movement in one direction, a shaft on which said lever is mounted, a ratchet carried by said lever for maintaining the pawl in position to "prevent movement of the ratchet in a direction to return the operating lever to initial position before it has been moved to its extreme actuated position,

13. In stapling mec'hanism, the combination of Wire feeding" and cutting mechanisms', staple forming and staple setting mechanisms, an operating lever for actuatj shaft, a pawl cooperating with said ratchet, and' a spring controlled by said operating Y ing saidmechanism's by a continuous movement in' one direction, and means for preventing only apartial movement of said lever in a direction to operate said mechanisms, and to prevent only a partial return of said lever toward, initial position.

MILLER REESE HUTCHIISON.

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