US427670A - campbell - Google Patents

Description

3 Sheets-Sheet 1.

(No Model.)

H. CAMPBELL. MACHINE FOR SBGURING THE GORNERS OP BOXES.

Patented May 13, 1890.

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(No Model.) l 8 Sheets-Sheet 2.

H. CMVIPBELL.l MAGHINE POR SEQURING THB GGRNERS 0F BOXES.

No. 427,670. PatentedMaylB, 189.0.

L/ /j/ A (No Model.) 3 Sheets-Sheet 3.'

H. CAMPBELL. MACHINE FOR SEGURNG THE G'ORNERS 0F BOXES.

No. 427,670. Patented Maly 13, 1890.

UNITED STATES PATENT OFFICE.

HENRY CAMPBELL, OF LONDON, ENGLAND.

MACHINEFOR SECURING THE CORNERS OF BOXES.l

SPECIFICATION forming part of Letters Patent No. 427,670, dated May 13, 1890u Application filed June 20, 1887. Serial No. 241,941l (No model.) Patented in England January 19, 1887, No. 848; in France June 7, 1887, No. 184,078; in Belgium June 9,1887,No.77,767; in Germany June 11,1887,No.48,316; in Italy June 30, 1887, No` 21, 867/219; in Canada July 18,1887,No,27,189; in Victoria July 19,1887,N0.5,184; in New South Wales August 2,1887,No. 38; in Spain November 9, 1887, No. 7,118; in Norway January 16, 1888, No. 888, and iu Austria-H1111- gary June 5,1888,N0.15,037,andN0,23,198.

To all whom t may concern:

Be it known that I, HENRY CAMPBELL, engineer, a citizen of the United States of America, at present residing at 115 Cannon Street, in the city of London and Kingdom of Great Britain, have invented certain new and useful Improvements in Machines for Seeu rin g the Corners of Boxes, (which have been patented in Great Britain by Letters Patent dated January 19, 1887, No. 848; in France by Letters Patent dated June 7, 1887, No.184,078; in Belgium by Letters Patent dated June Sl, 1887, No. 77,767; in Germany l by Letters Patent dated June 11,1887,No.

48,816; in Austriadiungary by Letters Patent dated .Tune 5, 1888, No. 15,037/28,198; in Italy by Letters Patent dated June 80, 1887, No. 21,867/219; in Spain by Letters Patent dated November 9, 1887, No. 7,118; in Canada by Letters Patent dated July 18, 1887, No. 27,189; in Victoria by Letters Patent dated July 19,1887,No. 5,184; in New South Vales by Letters Patent dated August 2, 1887, No. 88, and in Norway dated January 16,1888, No. 888,) ot which the following is a specification.

The object of my invention is to produce machinery capable of performing all the operations of cutting out the angle clamps, bending them longitudinally into the required shape, cutting them to length, and applying them when'so cut ou t, bent, and cut to length to the corners of the boxes, whereby a very considerable economy will be effected not only of hand-labor, but in the number and cost of machines to perform a specified quantity of work.

My improved machinery is illustrated in the drawings hereto annexed, in which* Figure 1 is a plan; Fig. 2, a front elevation; Figs. 8, 4, 5, G, 7, and 8, transverse sectional elevations on lines 1 1, 2 2, 8 8, 4 4, 5 5, and (5 G, respectively of Figs. 1 and 2. Fig. 9

represents a strip of metal as cut out by the machine to form an angle-clamp, and Fig. 10 shows an end view of such strip of metal when bent to form an angle-clamp.

Similar letters of reference relate to like parts in all the figures.

On a bed-plate A, I mount in suitable bearings a revolving shaft B, carrying a series of cams, which shaft I shall hereinafter call the cam-shaft. At one end of the bed-plate A, I place a punching or cutting-out device con sisting of a suitable fixed bottom die or cutter O, of a shape suitable for cutting the edges of a strip of metal into claws of the desired form, as illustrated to a larger scale in Fig. 9, for example, and of a corresponding upper movable matrix or cutters D D, the latter being iixed on and operated by a lever E, or other suitable mechanical device actuated by a cam F on the camshaft Bl. In order to prevent the portion` of the strip of metal cut out by these cutters from being retained in and carried up by the matrix or cut ter D, a stripper-bar G is placed in the matriX or cutter D. Two rods G G', With shoulders or collars G2 G2, are secured at their lower ends in the said bar G, and, passing up through holes in the lever E, are guided at their upper ends by a cross-head G3, secured to the said lever.

Gfl GAl are springs bearing against the under side of the cross-head G3 and on the upper side of the collars G2 G2, tending always to press the rods G G and the stripper-bar G downward, so as t0 force the strip out of the matrix D and prevent its retention therein.

Next in order on the bed-plate A, I arrange a series of rollers 1I II. H2 H3 for the purpose of bending and shaping the strip of metal cut out in the above-mentioned cutting-out device into the necessary angular forms to serve as clamps. The rollers II and II turn in horizontal bearings in the cap HX, as shown clearly in Fig. 4, and the rollers II2 and H3011 vertical pins HL1 and H5, respectively, as shown in Fig. 5. The pin Hlisiixed in a sole-plate 1I, the pin H5 in a piece H7, adapted to slide on the piece I-I", and both H(s and H' are secured to the bed-plate A by a stud and nut 118, passing through slots in the pieces H(S and H7. By this means the rollers H2 and H2 can be adjusted to or from each other or to and from the center line, as may be required, the adj Listing-screw H9 serving to make the adjustment of the roller H3 toward the roller H2.

H10 is a former or mandrel, the upper part of which has the shape the inside of the clamp is intended to have. It is secured in place between the packing-pieces H11 by the set-screws H12. (See Fig. 4.)

The roller 1I is grooved on its periphery, so as to commence the bending longitudinally in the middle to the required angle of the strip of metal leaving the cutting-out devices. The roller H' is grooved in a similar manner, but so as to complete the longitudinal bending of the body of the strip to the. required angle. The rollers H2 H3 are grooved von their peripheries, so as to bend the claws at the edges of the strip of metal inward to the proper angle, the mandrel H10 co-operating` with the rollers 1I, H', H2, and I12 to impart the required shape-such as that shown inv Fig. 10, for example-to the clamps, preparatory to their being applied to the corners of the boxes.

Next after the above-described bendingrollers I arrange on the bed-plate A a feeding device composed of a pair of grippingjaws I I', mounted on a carriage I2, adapted to slide to and fro longitudinally between dovetail guides 13 on the bed-plate A. These jaws are adapted to receive and grasp between them the bent metallic clamp-strip K.

lThe carriage I2 has secured to it a pin I1, the

upper end of which takes into a sliding bush 15 in a slot in'one end of a feeding-lever I, which is capable of being oscillated horizontally on the fulcrum-pin I7, fixed to or formed on the piece I8 by thecam 110 on the cam-shaft B to the extentnecessary for feeding forward a length of clamp-strip, and vertically by the rocking of the lfulcruin-pin IT and the piece I8 on the center screws 19 to a limited extent by the cam 111, sufficient to allow the upper gripping-jaw I to grasp and release the clampstrip between it and the lower jaw I' at the proper time. The stroke of the feed-lever 16 may be adjusted to give the necessary-traverse to the feeding devices to suit the various lengths of angle-clamps by increasing or decreasing the backward stroke of the lever under the action of the spring I12 by varying the length of the stop-finger 113 by its screwadjustment. The jaws I and 1' are steel washers threaded onto the pin 14, and having grooves or recesses out across them corresponding to the shape, above and below, of' the bent metallic clamp-strip K. The lower washer I bears upon the upper surface of the carriage 12, and the washer 1 is pressed upward against the under side of the lever 16 by means 'of the pins 114, acted on -by the springs 115. A hole I1G through the pin I4 allows of the passage through the latter of the metallic strip K. It will now be understood that when the front end of the feed-lever drawings.

1G is pressed down by the action of the cam 111 the washer I is pressed downward, grasping the metallic strip K between itself and the washer I', and that when the front end of the feed-lever I6 is released by the cam 111 the springs 115 press up the washer I, releasing the metallicstrip K. 1t will be further understood that the forward horizontal oscillation of the lever 16 by the action of the cam 11O while the washer or jaws I 1 are closed together, acting through the pin I4, causes the carriage 12, and with it the grasping devices, to slide longitudinally forward, carrying the metallic strip with it, and that the backward horizontal oscillation of the lever 1G, effected by the action of the spring 112 While the washers or jaws I I' are open, causes the carriage I2, and with it the grasping devices, to slide longitudinally backward (without moving the metallic strip) into a position to take a fresh grasp of the said strip at a new point of its length.

After the feed mechanism is a die L L', through which the bent or shaped clamp-strip is pushed by the feed-jaws. The lower part L of this die forms the fixed cutting-edge of a pair of shears, by which the clamp-strip is cut off to the required length. 1t is shaped to the form of the under side of the bent strip. The upper part L of the die is shaped to fit the upper side of the bent strip, and is held down in place when a length of strip to form a clamp is being sheared off by a spring L2, acting on a pin L3, carried by the shearinglever M, and is pressed upward by springs L4 while the-bent strip is being pushed forward, so as to give plenty of room for the passage of the strip through the die. The other cutting-edge L5 of the shears is formed on or secured to one side of the front end of the lever M, which lever serves at the saine time as a presser for forcing the angle-clamps onto the corners of the boxes. This latter lever M, which may be called the shearing and pressing lever, is placed at the end of the bed-plate A opposite to that at which theV cutting-out devices are placed, and is actuated by an appropriate cam M on the cam-shaft B. Below the front end of the lever M is fixed an anvil N, the upper edge of which corresponds to the angle of the box-corner, and the pressing-lever M may in some cases have merely a groove in its end corresponding to and fitting over the edge of the anvil for the purpose of pressing the clamps into the boxcorners; or it may be fitted with the supplementary closing or pressing devices illustrated in sectional elevation in Fig. 7 of the These devices consist as follows:

Two jaws M2, each formed of a cylindrical segment, are fitted into a cylindrical cavity bored in the front end of the lever M. These jaws have each an arm M3, projecting upward through a slot in thelever M. The segmental jaws M2 are held in place in the cylindrical cavity by keep-plates M1. M1" are links pinjointed at one end to the arms Mg and at the IOO IIO

other end to the front end of alever M6, which turns on a fulcrum M7 on the lever M itself. The rear end of the lever VM6 is acted upon by a cam MS on the cam-shaft B. It will now be understood that when the cam M has operated on the lever M so as to lower its front end, and thereby effect the cutting off of a length of clampstrip, the jaws M2 are also lowered, following up the clamp-strip so cut off, and the cam Ms then acts on the lever MG, so as to press the frontend of thelatter downward. The links Miy act upon the arms M3 after the mannerof a toggle-joint, turning the segmental jaws M2 in their cylindrical cavity, so that their lower radial faces turn to a right or any other angle correspondingto that of the box-corner to be opera-ted upon and drive the claws of the clamp into the box-corner as required. Vhen the cam Ms releases the lever M, the spring M9 returns it and the jaws M2 to their normal posit-ions, and when the cam M releases the lever M the spring M10 returns it and the jaws M2 into the position shown in the drawings.

The action of the machinery or apparatus is as follows: The strip of metal from which the angle-clamps are to be madeis preferably continuous, and is fed into the machine over the lower or fixed die of the cutting-outmech anism between the bending and shaping rollers, and into the grasp of the feedingjaws. rlhe cam-shaft B is now caused to make a revolution. The cam F actuates the lever E. The matrix or cutter D is thereby forced down over the die C, cutting out from 'the strip of metal the spaces between the claws, as illustrated in Fig. 9, for example. The feed-lever I6 is then oscillated horizontally by the camsurface 110 a distance equal to the length of a finished angle-clamp, the cam-surface I11 having previously acted on the said lever so as to close the jaw I vertically onto the strip of metal, so as to grasp and hold it firmly between itself and the lower jaw I, as before described. The strip of metal is thereby drawn an equal distance between the bending and shaping rollers and the former or mandrel H10, whereby the strip of metal is bent bodily to its required angular form and its claws bent under at the proper angle, as illustrated in Fig. lO, for example. The cam-surface I now releases the lever l6 vertically and the upper jaw is released from the strip of metal, which then remains stationary, while the spring I12 draws the rear end of the lever l horizontally, so as to return the feeding-j aws backward ready to take a fresh grip of the strip. As the feed mechanism draws the cut-out and bent strip of metal through, it pushes the leading end through the cutting-off die L L and over the anvil N; but in the meantime an operative will have inserted the corner of a box between the anvil N and the length of angleclamp projected over the latter. The shearing and pressing lever M is now actuated by the cam M', its front end descends, the shearing edges Land L5 cut off the length of angleclamp, the beveled front edge of the shear L5 pushes the cut-off angle-clamp forward under the jaws h 2, and the cam M8 then actuates the lever MG, which causes the segmental jaws M2 to turn in their cylindrical cavity, pressing the claws of the clamp into the boxcorner and elinching them on the anvil N. The box-corner thus provided with a clamp is then removed from the anvil N, another corner is placed thereon, the cam-shaft again rotated, and the same operations repeated, and so on continuously. Thusit will beseen that at each revolution of the camshaft B five different operations are performed on four different portions of the strip of metalthat is to say, one finished part of the strip, comprising an angle-clamp, is cut off and applied to a box-corner; anotherI part of` the strip, comprising the material for a second angle-clamp, is fed forward through the cutting-off die; a third part of the strip, comprising the material for a third angle-clamp, is bent to the required form, and a fourth part of the strip, comprising the material for a fourth an gle-clamp, is cut out to the required shape.

All parts of the machine that require to be altered to suit different sizes or characters of angle-clamps are preferably made interchangeable, or otherwise adjustable, so that one machine may be made to perform a considerable variety of work.

In the machinery above described the camshaft and its cams have to make a complete revolution to perform a complete set of operations. It isobvious, however, that the cams maybe so shaped and the mechanism actuated by them so arranged that the complete set of operations may be performed by a partial rotation forward and backward of the camshaft. Rotary or reciprocating-rotary motion may be imparted to the camshaft by any suitable means-such as a crank-handle-applied either direct thereto, or through the medium of toothed gearing, or by means of a treadle operated by the foot acting through suitable levers, links, gearing, the., or otherwise by mechanical power of any kind.

l would have it understood that I do not confine myself to the precise arrangements and details hereinbeforc described and illustrated in the drawings, as they may be varied .without departing from the nature of my invention.

Having now particularly described andascertained the nature of my said invention and in what manner the same is to be performed, l declare that what I claim is- ,1. The improved machinery for the manufacture and application of angle-clamps for uniting the corners of card-board and other boxes, consisting of the cutters C D, lever E, and cam F for cutting out and shaping the claws on the edges of a strip of metal, the rollers H, ll', H2, and lli", and the mandrel H10 for bending the said strip of metal longi- IOO IIO

lto

tudinally and the claws at the edges thereof inward, the sliding carriage 12, the gripping devices I I', the lever 10, oscillating horizontally and vertically, the cams 110 111, and the springs 112 and 115 for feeding or drawing forward the strip of metal a distance equal to the length of a finished angle-clamp, the dies L L', and the cutting-edge or shear L5, secured to the lever M for shearing off the angle-clamps to length, and the anvil N, the lever M, provided with an angular groove in its front end corresponding to the said anvil, the. cams M M8, and the springs M9 M10 for applying the finished angle clamps to the corners of boxes, all arranged, combined, and operating substantially as hereinbefore described,and illustrated in the drawings hereto annexed.

2. 1n machinery for the manufacture of vangle-clamps for uniting the corners of cardboard and other boxes, the cutters C D, lever E, and cam F for cutting out or shaping the claws on the edges of a strip of metal, the rollers H, H', H2, and H3, and the mandrel H10 for bending the said strip of metal longitudinally and the claws at the edges thereof inward, the sliding carriage I2, the gripping deviceI 1', the lever 10, oscillatinghorizontally and vertically, the cams 110 111, and the springs 112 and 115 for feeding or drawing forward the strip of metal a distance equal to the length of a finished angle-clamp, and the dies L L', the cutting-edge or shear L5, the lever M, the cam M', and the spring' M10 for shearing off the angle-clamps to length, all arranged, combined, and operating substantially as hereinbefore described, and illustrated in the drawings hereto annexed.

3. In the machinery for the manufacture of angle-clamps for uniting the corners of cardboard and other boxes, the cutters C D, lever E,and cam F for cutting out and shaping the claws on the edges of a strip of metal, the rollers H, H', H2, and H5, and the mandrel H10 for bending the said strip longitudinally and the claws of the edges thereof inward, and the sliding carriage 12, the gripping devices I 1', the lever 10, oscillating horizontally, the cams 110 111, and the springs 112 115 for feeding or drawing forward the strip of metal, all arranged, combined, and operating substantially as hereinbefore described.

4. In machinery for the manufacture of angle-clamps for uniting the corners of cardboard and other boxes, the rollers H, H', H2, and H2, and the mandrels H10 for bending or shaping to the desired forni a strip of metal previously cut out with claws on its edges, the sliding carriage 12, the gripping devices 1 I', the lever 10, oscillating horizontally and vertically, the cams110 and 111, and the springs 112 and 115 for feeding or drawing forward the strip of metal a distance equal to the length of a finished angle-clamp,the dies L L', and the cutting-edge or shear L5, secured to the lever M for shearing off the angle-clamps to length, and the anvil N, the lever M, provided with an angular groovein its front end corresponding to the said anvil, the cams M M2, and the springs M9 M10 for applying the finished angle-clamps to the corners of boxes, all arranged, combined, and operating substantially as hereinbefore described, and illustrated in the drawings hereto annexed.

5. 1n machiner)T for the manufacture of angle-clamps for uniting the corners of cardboard and other boxes, the rollers 1-1, H', H2, and H5, and the mandrel H10 for bending or shaping a strip of metal previously cut out with claws on its edges, the sliding carriage 12, the gripping devices I I', the lever I0, oscillating horizontally and vertically, the cams 110 and 111, and the springs 112 115 for feeding or drawing forward the strip of metal a distance equal to the length of a finished angleclarnp, and the dies L L', the cutting-edge or shear L5, the lever M, the cam M', and the spring M10 for shearing off the angle-clamps to length, all arranged, combined, and operating substantially as hereinbefore described, and illustrated in the drawings hereto annexed.

6. In machinery for the manufacture of angle-clamps for uniting the corners of cardboard and other boxes, the sliding carriage 12, the gripping devices 1 I', the lever 10, oscillating horizontally and vertically, the cams 110 111, and the springs 112 115 for feeding or drawing forward a strip of met-al previously cut out with claws on its edges and bent or shaped to the desired form a distance equal to the length of a finished angle-clamp, the dies L L', the cutting-edge or shear L5, the lever M, the cam M', and the spring M10 for shearing off the angle-clamps to length, and the anvil N, the lever M, provided with a pair of jaws M2, and a second lever M0, actuating the said jaws, the cams M' M5, and the springs M0 M10 for applying the iinished angle-clamps to the corners of boxes, all arranged, combined, and operating substantially as hereinbefore described, and illustrated in the drawings hereto annexed.

7. 1n machinery for the manufacture of angle-clamps for uniting the corners of cardboard and other boxes, the sliding carriage 12, the gripping devices I 1', the lever 10,y oscillating horizontally and vertically, the cams 110111, and the springs 112 115 for feeding or drawing forward a strip of metal previously cut out with claws on its edges and bent or shaped to the desired form a distance equal to the length of a finished angle-clamp, and the dies L L', the cutting-edge or shear L5, the lever M, the cam M', and the spring M10 for shearing off the angle-clamps to length, all arranged, combined, and operating substantially as hereinbefore described, and illust-rated in the drawings hereto annexed.

8. In machinery for the manufacture of angle-clamps for uniting the corners of cardboard and other boxes, mechanism for feeding or drawing forward the strip of metal, consisting of grasping devices I 1', carried by IOC y IIO a reciprocating sliding carriage I2, and a lever I6, oscillated horizontally on the fulcrum-pin I7 by the cam I10 and spring I12 for effecting the reciprocating motion of the carriage, and oscillated vertically on the fulcrum-screvsv's I9 by the cam I11 and spring 115 for closing and opening the grasping devices, as hereinbefore described, and illustrated in the drawings hereto annexed.

9. In machinery or apparatus for applying an gle-clamps to the corners of cardboard and other boxes, the mechanism for pressing' the claws of the clamps into the corners of the boxes consisting of a pair of jaws M2 M2, opposed to an anvil N and carried on the end Witnesses:

STEPHEN EDWARD GUNYON,

115 Camion Street, London. WILLIAM ANDERSON SMITH,

Il? Stoke Neim'oigton Road, London.

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