US2062698A - Wire binding machine - Google Patents

Description

1936' c. H. CHAMBERLAIN 51' AL 2,062,698.

WIRE BINDING MACHINE Filed March 13, 1936 3 Sheets-Sheet 1 mvE To s C HARLES HOYES CHAMBER LAIN C HARL'ES PARKER S TAN NAR-D B y w v ww s v 1936' c. H. CsHAMBERLAIN ETAL 2,052,698

WIRE BINDING MACHINE I Filed March 13, 1936 3 Sheets-Shet 2 J6 INVENTORS CHARLES HoYEs CHAMBERLAIN CHARLES PARKER STANNARD BY M M ATMRNE v Dec. 1, 1936.-

WIRE BINDING- MACHINE 'c H. CHAMBERLAIN ET AL 2,062,698

Filed March 15, 1936 SSh'eets-Sheet 5 CHARLES HOYES CHAMBERLAIN CHARLES PARKER STANNARD ATTDRNEY Patented Dec. 1, 1936 I UNITED STATES PATENT OFFICE WIRE BINDING MACHINE Charles Hoyes Chamberlain and Charles Parker Stannard, Nelson, New Zealand Application March 13, 1936, Serial No. 68,764 In New Zealand April 5, 1935 Claims. (01. 14093) This invention has reference to an improved Figure 7 is a plan thereof. mach e for e e ting Wire binding Operations in Figures 8 to 10 are detail views which will be t binding or strappin of pa as s and hereinafter more fully referred to. other packages by the Well known method in In its general features of construction and op- 5 which the Wire band is placed round the case 01 eration the machine designed resembles mapackage, its two ends crossed and then tensioned chine already know and used in like circumby drawing them ap t and e twi together stances to strain a wire band round a case or to form a tie and finally have the surplus ends package by overlapping its ends and drawing the cut off. overlapped ends in opposite directions and then t 10 e inv n p d s a Construction Of to secure the, two ends together by helically twist- 10 Chine which y be used either W h W e bands ing them one upon the other. It also resembles previously out into the required lengths, or with known machines in th t it provides for such a 0011 Of wire the free end of which iS bound and straining and twisting being efiected by causing tied On the ea package and then Severed the twoends of the band, as they cross, to pass.

fr h oil in h utting p i nthrough a radial slot in a rotatable pinion wheel 15 The said construction is s designed as to and then to be respectively gripped at their 'exprovide for the operation of straining the band t miti by grips upon pivoted lever arms which being fi e y the reelWetrd movement of an are caused to move apart and to approach each p atin a dl a d the p a s of twisting other in the operations of the machine. .Still t e Overlapping portions and the Cutting 0f the further, the machine resembles known machines '26 en being effected y the fOrWard movement of of this typein that by the movement of a single SU-Ch Operating handleoperating handle in one direction, the straining The principal novel features 0f the machine leversare caused'to be moved apart while the are concerned with the mea s for pp the saiclpinion remains stationary, and the movehand ends and for tensionin i around the e ment of such handle in a reverse direction causes25' or p k an the m ns fo effecting the tWiStthe pinion to be rotated on its own axis while ing and cutting actions beforementioned, through the straining 1evers move together the Operations of this hand The novel features of. construction in this All Object of the invention 15 to construct machine are hereinafter described and set forth machine of this character which is portable, light in t chiming 1 30 in Weight and readily handled in the carrying out In giving effect to the invention a base plate l0 of its Operations of suitable design is provided, such plate having Another bjec is to construct a machine With combined therewith parallel disposed: bearing simple Parts not of an intricate nature and in cheeks H extending in a front to rear direction, which repairs replacements may be carried and also having a ledge l2 along its front edge 3 out without the employment of skilled labour and which is designed t have t Wire d brought which is economical in the cost of its production. across it for straining and securing and the The said machine is illustrated in the accomto slip out from beneath the joined ends, in the Denying drawing-5 and will be hereinafter fully well known manner. This ledge is provided with 40 described in relation to such drawings, in two horizontal slotted guides l3 arranged upon Whif3h: and disposed a distance apart across the front, Figure 1 IS a left hand side elevation of the and the Slot in each of these is made of just machm; shofivmg i. ii g aflssumed by the sufficient height to allow of a single thickness Parts W en t 6 Opera mg an e 15 swung of wire lying within it although its depth in 2: :3 from in the commencement of the Opera'- from the front is sufficient to allow for two wires 45 lying side by side within it. A pinion wheel l4 1 t ere f. F i g i i riz 3 is a l f on t el vation; thereof the 5 arranged between the guides such being ourhandle stem being Shown in Section nalled on stub axles within the blocks I5 in which Figure 4' is a right hand side elevation with the guide $19155 are formed e bemg iformed 50 the parts still in the commencement position. with the radlal slot extendmg m Figure 5 is a back elevation there f. Width and into about the centre of the pinionm Figure 6 is a right hand side elevation but the well known manner. This slot also is made with the parts in the position assumed when the of such a depth as to allow of the two wires lying T *handle is swung back to the rear position side by side within it, to ensure of the helical 55'" twisting of one on the other when the pinion is rotated.

On the outside of each guide l3 a jaw IT is disposed upon the ledge l2, and these jaws are adapted to have the respective wire ends passed through them as they also lie in the guides, in the manner and for the purpose hereinafter explained.

A transversely extending shaft 18 is journalled in the side cheeks II and on this, between the cheeks, are mounted side by side the two gear wheels l9-20. The gear wheel i9 is loosely mounted on the shaft l8 and is caused to gear with the slotted pinion I4, and bears a ratio thereto such as to impart to this pinion a definite number of exact revolutions on each half rotation of the wheel, such number of revolutions being that concerned with the number of fastening twists to be given to the overlapped w1res.

The shaft I8 is designed to be moved reciprocally through a half rotation on each operation of the machine, and for this purpose has the two arms 2| of a bifiu'cated end of the handle lever 22 aifixed to it in a manner to position the arms respectively upon the outsides of the bearing cheeks H. These arms are connected by a bridging piece 23 which is positioned clear of the rim of the wheel Hi.

The said handle is designed to lock with the wheel l9 only as the handle is moved from a rearwardly thrown back position to a forward position, and to move independently of the wheel as it is moved in the reversemanner. For this purpose each of the side faces of the wheel I9 is formed with two ratchet tooth depressions 24 disposed in positions diametrically opposite each other. Mounted on the bridge piece 23 of the handle are two pivoted pawls 25 which are drawn inwardly against the respective faces of the wheel l9 by means of a connecting spring 26 and. which are designed to enter the depressions 24 and to lock with the wheel as the handle lever is moved in the forward direction, but to slide freely when the handle is moved rearwardly. To ensure of the wheel being on each chine front so that the wires may be inserted forward movement of the handle, moved through the exact half rotation in order thus that the pinion M will at the commencement of the movement have its slot 16 opening to the mafor twisting and removed after twisting, and also to ensure that the wheel shall be held firmly against movement when the handle is turned back, a ball 21 is fitted into a cup 28 aflixed to one of the side cheeks II, and this ball is acted upon by a spring within the cup so that it projects against the adjacent face of the wheel. The wheel is formed with two circular depressions 29 disposed on its face at points diametrically.

' opposite, and as the full and exact half rotation of the wheel ends, the ball 21! springs into one of these depressions, to hold the wheel and the pinion M in the proper relative positions required. Figures 8 and 9 show the wheel I9 in wardly and rearwardly, the shaft turns a small portion of its movement before taking the Wheel with it. This is effected as shown in Figure by forming a key way 33 in the wheel which is wider than the key 3| attached to the shaft. Then to restrain the wheel while the idle part of the shafts movement takes place, a similar spring ball fitting 32 to that employed in respect of the wheel 19 is provided to engage a depression 33 in the side face of this wheel 20.

A countershaft 3 3 is journalled in the cheeks II at the rear of the shaft l8 and such shaft 34 has a pinion 35 mounted on it which gears with the wheel 28 and is thus caused to have a reciprocal rotary motion imparted to it as the handle is moved rearwardly and forwardly in each operation of the machine. Each end of this counter-shaft 34 is extended beyond the machine frame side in the form of a screw worm 36 of quick pitch.

Pivoted at 31 on the base plate I0, outside each side cheek I l is a lever arm 38 which extends forwardly at one end to be positioned in the machine front and rearwardly at the other end. This rear end is bifurcated at 39 and its forks pass one above and the other below a collar 40 mounted on the worm 36 on that side, being then connected with the collar by means of radial pins 4! on the collar which fit within slots 42 formed in the said lever arm forks. One of these worms is formed with a right hand thread and the other with a. left hand thread and they are so arranged that with the rearward movement of the handle 22, and the rotation of the pinion 35 and countershaft 34- and worms caused thereby, the collars being loose on the worms, but being themselves suitably held from rotation by the engagement of their pins 4| in the slots 42, they will move inward towards the cheeks II on the respectivesides thereby causing the forward ends of the levers to move outwards, or away from each other, while the movement of the lever arms will be reversed on the forward movement of the handle.

Each lever arm 38 at its forward end is fitted with a wire gripping device. This device on the left hand side of the machine is formed as a suitable clamp 43, while that on the right hand side is formed as a spring controlled ratchet grip 44.

In the use of the machine, the wire band has its one end first engaged in the clamp grip 43 and the wire then carried along the front of the machine by being inserted in the cutting jaws I1, guides 53 and the slot I6 of the pinion l4, and then passed round the box or package to be bound and again through the jaws, guides and pinion slot, in front of the first wire end, and is engaged at its other end in the grip 44. This is, of course, with the handle brought over to the front and the grips at their inward position. Then on the rearward movement of the handle the arms 38 are moved apart and the band strained in the required manner. On the forward movement of the handle, the twisting of the overlapping wires takes place and the grips move inward loosening their grips on the wires to allow for the slackness necessary for twisting. Such inward movement of the grips, however, does not take place until after the twisting action has commenced and the wires are held together, by reason of the idle movement provision in respect of the gear wheel 20 hereinbefore described.

For the purpose of severing the wire ends, i. e. those held in the grips, from the twisted joint, there is attached to the outside of the handle arm 2| on each side of the machine a cutter 45 which is designed and so adjusted that in the downward movement of these arms as the handle completes its forward movement, it will pass across the outer face of the cutting jaw H on the corresponding side, overlapping with such jaw just a sufficient distance to engage the inner of the two wires lying therein, to thereby cut through it. These blades are however kept normally raised clear of the jaws, to permit of the insertion of the wire therein when placing the band in position and also the removal of the wires after the joint has been made, by means of a vertical compression spring 46 resting on one of the jaws in a position to engage the handle "arm as it is brought down, the cutting action then being effected by lowering the handle a distance against this springs resistance. The two cutters are so disposed relatively that one acts ahead of the other, in order thus to lessen the strain or power required to effect the cutting.

A handle loop 4-! is attached to the rear of the base plate In and this may be used in the lifting and adjusting of the machine in carrying on its operations and in its withdrawal from beneath the joined band.

We claim:--

1. In wire binding machines of the class comprising a slotted pinion disposed between wire holding guides, and a gear wheel gearing with such pinion and adapted to be actuated by a hand lever when it is moved in one direction and to remain stationary when the hand lever is moved in a reverse direction, and also comprising tensioning arms pivoted one on each side of the said guides to move out and in, in relation thereto, and adapted also to be actuated by the said hand lever as it moves in both directions, means for so actuating the tensioning arms, consisting in the combination with a second gear wheel adapted to be rotated in reverse directions by the movements of the hand lever, a countershaft geared with such gear wheel, a screw worm for each tensioning arm fixed upon such countershaft, and connections between each screw worm and its tensioning arm designed on the rotation of the Worm in reverse directions to move the tensioning arm out and in, such screw worms being so relatively arranged as to cause thetensioning arms to be moved out and in together.

2. In wire binding machines according to claim 1, means for connecting each of the said tensioning arms with its actuating screw worm, comprising the formation of the arm with a forked end and the combination therewith of a collar fitted within the fork members and held from rotation therein and which collar is screwed on to the worm and engages the fork members by means of radially projecting pins passing into slots formed in such members.

3. In wire binding machines of the class comprising a slotted pinion disposed between wire holding guides, and a gear wheel gearing with such pinion and adapted to be actuated by a hand lever when it is moved in one direction and to remain stationary when the hand lever is moved in a reverse direction, and also comprising tensioning arms pivoted one on each side of the said guides to move out and in, in relation thereto, and adapted also to be actuated by the said hand lever as it moves in both directions, means for so actuating the said gear wheel comprising the mounting of the gear wheel loosely upon a shaft carried in bearings upon the machine and the combination therewith of a hand lever having a forked end, the members of which are fixed on to such shaft on the respective sides of the gear wheel, a spring controlled pawl, on each, or either, side of the wheel, pivoted on the handle to engage the adjacent side face of the wheel, and a ratchet tooth depression formed in such side face designed to be engaged by and to lock with the spring pawl when the hand lever moves in one direction, and to be free thereof when the hand lever moves in the reverse direction.

4. In wire binding machines according to claim 3, means for restraining movement of the said gear wheel as the hand lever moves in one direction consisting in a spring pressure ball disposed in a fixture on the machine to engage against the side face of the wheel and the formation of such side face with a depression into either of which the said ball is adapted to enter.

5. A wire binding machine comprising, in combination, a base plate, a radially slotted pinion joumalled in the front of such base plate, a horizontal wire guide disposed on each side of such pinion, a horizontal main shaft journalled on the base plate at the rear of the pinion, a gear wheel mounted loosely on such shaft and gearing with the said pinion, a second gear wheel keyed upon such shaft, a hand lever fixed upon the shaft and adapted to lock with and turn the first gear wheel when the lever is moved in one direction but to move freely thereof when it is moved in a reverse direction, a tensioning arm pivoted on the base plate, near each end thereof, having one end provided with a wire grip and extending forwardly outside the said wire guide upon that side of the slotted pinion and its other end extending rearwardly, a horizontal countershaft joumalled in the rear of the main shaft, a pinion fixed thereon and gearing with the said second gear wheel upon the main shaft, a screw worm fixed, or formed upon each end of the countershaft, one of which screw worms is formed with a left hand thread and the other with a right hand thread, connections between each screw worm and the rear thread, connections between each screw worm and the rear end of the tensioning arm on its side of the machine, which connections are designed to provide for the reverse rotations of the countershaft, caused by the said hand lever being turned in opposite directions, conveying inward and. outward turning movements to the tensioning arm, and wire cutting means associated with the said wire guides and the hand lever to actuate when the hand lever is moved over to a front position.

CHARLES HOYES CHAMBERLAIN. CHARLES PARKER STANNARD.

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