US545996A - Machine foe - Google Patents

Description

(No Model 5 Sheqts-Sheetl. M. P. WILSON. MACHINE. FOR. APPLYING STAYING STRIPS T0 BOX CORNERS.

No. 545,996. Patented Sept. 10,1895.

fiweiz for" .Merrzfi Mimi.

(No Model.)

M. F. WILSON.

5 Sheets-Sheet 2.

MACHINE FOR APPLYING STAYING STRIPS T0 BOX CORNERS.

Patented Sept. 10, 1895.

5 Sheets-Sheet 3.

(No Model.)

M. F. WILSON. 4 MACHINE FOR APPLYING STAYING STRIPS T0 BOX CORNERS. No. 545,996. Patented Sept. 10, 1895.

JZ' J- (No Model.) 5 SheetsSheet 4.

M. F. WILSON. MACHINE FOR APPLYING STAYING STRIPS T0 BOX CORNERS.

No. 545,996. Patented Sept. 10, 1895.

. Gle- (No Model.) 5 Sheets-Sheet 5.

M. F. LSON. MACHINE POE APPLYING S NG STRIPS T0 BOX CORNERS. No. 545,996. Patented Sept. 10-, 1895.

jg; k

MERRIOK FRARY WILSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO EDGAR II. JOHNSON, OF MARION, INDIANA.

MACHINE FOR APPLYING STAYING-STRIPS TO BOX-CORNERS.

SPECIFICATION forming part of Letters Patent No. 545,996, dated September 10, 1895.

Application filed February 6, 1894- Serial No. 499,311. (No model.) I I To aZZ whom it may concern:

Be it known that I, MERRIOK FRARY WIL- SON, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Machines for Applying Staying- Strips to Corners of Boxes, of which the following is a specification.

The general object of this invention is to [O produce a machine that will affix corner'stays with more than the accuracy and perfection of even the most careful hand-work. Most machines for affixing stays usea die and compressing-punch, the latter acting upon the [5 Whole surface at once, and hence requiring considerable power to produce contact at every point of a somewhat uneven surface. Another fault inherent in all such machines is that they often merely compress air upon or within the interstices of the material operated upon, and upon the cessation of the pressure this air expands and lifts the strip forming a blister. The avoidance of these faults, as well as others pertaining to these and to other machines, is among the objects of my invention.

The machine consists of a suitable frame bearing a box-supporting horn which is adjusted vertically by positive mechanism and which adjusts itself laterally; mechanism for pasting a plain stay-strip (or' moistening a gummed one) and feeding ittransversely over the horn; mechanism for applying to the strip, when placed upon the box, pressure acting 5 without traction along a single transverse line only, and for gradually advancing this line of pressure from end to end of the strip; devices moving just in front of this advancing line of pressure to gradually cut across the strip and 4,0 sever from its end the stay-piece, which is thus partially affixed before it is wholly severed, and means whereby the machine, unless prevented by an attendant, automatically stops at the completion of its stay-affixing opera- 5 tion and holds all its parts in exact position for beginning a repetition of its movements.

In the drawings, Figures 1 and 2 are. perspective views showing, respectively, the front and left sides and the front and right sides of the complete machine. Fig. 3 is .a sectional elevation, section being upon the line 3 3,'Fig.

4. Fig. 4 is a plan View. Figs. 5 and 6 are sections on the lines 5 5 and 6 6, Fig. 4. Fig. 7

is a sectional view at 7 7, Fig. 6. Fig. Sis a detail View looking in the direction of the ar- 5 rows 8 8, Fig. 4.

The working parts of the machine are all supported by a frame A, having a rigid upwardly-projecting arm A, and are all operated from a main shaft M. This shaft is actuated by a constantlyrevolving loose flywheel pulley W, Which, when desired, is caused to engage the shaft M by depressing a pedal V and throwing into engagement a twopart clutch V, which automatically disengages at the completion of the first revolution succeeding the release of the pedal. The two parts of the clutch are put into engagement by a locking-bolt V sliding radially in one part and by a lateral end projection engaging 7c in notches V in the lateral walls of an annular recess in the other part. A springV ,lying in a recess in the shaft, constantly tends to force the bolt outward into such engagement. The bolt V projects from the clutch 7' and in the plane of its rotation lies a stop V upon a bar V which latter is pivoted at one end to the frame,so that the stop may be swung laterally out of that plane. The bar itself lies also in the same plane, and, when'the shaft is so turned that the bolt projects downward, it normally limits the bolts outward movement and prevents the engagement of the two parts of the clutch by resisting the action of the spring V but depressing the pedal rocks its shaft V and this movement, by means of an arm V link V and bell-crank V pivoted at V and connected at V to the bar V swings the latter, with its stop, out of the path of the bolt. The spring then instantly slides the bolt outward, and by the engagement of its lateral projection with the notches V in the other part of the clutch the shaft is locked to the moving pulley W and moves with it so long as the pedal is kept depressed; but when 5 the pedalis released the bar V and the stop return to their original positions, and the end of the bolt, as it is brought around with the revolving shaft, strikes and slides along the bars upper surface, and thus the bolt is grad- 10o ually forced inward until, at the moment when its lateral projection is freed from'the notches,

its projecting end meets the stop V which arrests rotation,with all the parts in exactly their original positions.

The box, the corners of which are to receive stay-strips, is supported by placing it upon a horn F, whose upper side has equally-inclined lateral faces meeting at right angles faced with steel. One end of the horn is pivoted to theframe atf and the other end is supported by a projection L of a bell-crank lever pivoted at L and having at itslower end a roller L working against a cam L upon the main shaft The cam is so formed that the horn is allowed to fall and remain depressed while the strip from which stays are to be cut is being fed across and above it and is then raised and rigidly held until the next feeding interval. This free end of the horn lies centrally in a recess f in the frame between springs f which allow automatic lateral adjustment, so that the horn and the box supported thereon may under all conditions receive practically equal pressure upon the adjacent sloping faces.

At one side of the frame is a bracket G provided with an arm G, which supports a staystrip spool P, mounted upon a shaft G The strip is fed forward and at the same time pasted or moistened, as the case may be, by rollers J J mounted upon a paste or water box J, supported by the bracket G. The rollers are preferably corrugated and the lower one lies so far down in the box that it must transfer to the strip the water or paste therein. The rollers are connected by gears J J, and one of them bears the usual ratchet-Wheel T and swinging arm T provided with a pawl T to engage the ratchet-wheel. The free end of this arm is connected by a link T to an arm Tof a vertical rock-shaftT and this is rocked in one direction by a cam T, (upon the main shaft,) working against a roller T, borne by a second arm T and in the other direction by a a spring T connecting a third arm to a fixed point upon the machine-frame and always holding the roller T against the face of the cam. The strip Sis directed between the rollers by a plate J 5 below and two rods J 9 above, and is guided laterally by bars J J adjustably clamped upon the rods by thumb-screws J passing down through each pair into nuts sliding without rotation in a longitudinal slot in the plate .1. After leaving the rollers the strip passes through a guide J pivoted at j, near the end next the rollers and held by a spring J above the plane of a knife K, fixed to the bracket. Above the path of the strip in this guide is a bar across the guides pivoted end, and from it a series of spring rods j project in a plane parallel to the path of the strip, nearly to the vertical plane of the knife-edge, to serve a purpose that will appear. The strip may bea strip previously gummed, in which case water will be used in the box, or it may be an ungummed strip if paste be substituted for the water.

To the arm A, already mentioned as proj ecting upward from the main part of the frame,

there is fixed a bar B, parallel to the horn F,

and below it is a second bar B, pivoted at one end to the arm A and at the other vertically adjustable in a slot cut in a lateral projection of the same. The free end of the barBrests upon an adjusting-screw H and is pressed down thereon by a spring H fixed at 71 to the bar B and acting with a force regulated by a screw H through a pin H, passing down through the bar B to the upper surface of the bar B. Upon the bar B a carriage (J is mounted with its upper part resting against both lateral faces of the bar B, which thus aids in keeping itin position. Upon the carriage is mounted astay-affixing roller D, here shown as having about the half of a complete rim,though this may vary, the minimum requirement depending upon the size of the machine, the diameter of the roller, and the lenght of that part of the horn over which the rolleris to pass.

Upon the bar B is fixed a rack R 1", which engages a gear E, borne by a gudgeon e upon the carriage and meshing with gear-teeth d upon the side of the roller D, and hence movement of the carriage along the bar produces positive rotation of the roller. The parts are so proportioned that this rotation is precisely equal to that which would occur were the roller to advance the same distance by rolling on a plane. It follows that there can be no traction whatever, the action of the curved surface, here shown as that of a roller, being the same as if it were rocked, not by lateral pressure, but by gradually moving the line of pressure toward one side of the line of contact of the curve and the surface upon which it impinges. The roller lies in the plane of the horn and is circumferentially grooved at d to fit saddle-like upon the same. Upon one side of the groove is a steel plate D, sharpened at its outer edge (1 to coact with the knife K, already mentioned, in cutting from side to side across the strip S, and upon the same side is a curved flange D which, as the roller advances, rolls over the rods of the strip-guide J and thus rocks the guide downward, allowing the adhesive strip end to fall upon the knife K and the corner of a box awaiting it upon the horn. The carriage is moved back and forth by the main shaft through an eccentric N, acting at N upon a lever N having its lower end pivoted at N and its upper end connected to the carriage by a link N whose ends are of course pivoted, as seen at D N. Now, when all the parts are properly adjusted and the pulley W is in motion a box is placed in position upon the horn and the pedal is depressed. This allows the clutch to engage and rotation of the main shaft begins. The horn drops, the cam T causes the strip to be fed forward to the proper distance over the box, the horn is raised by the cam L the carriage advances, the flange D depresses the guide J dropping the end of the strip upon the box and knife K, the knife (1 begins to cut across the strip, and the roller D, whose line of contact closely follows the advancing point of cutting, presses the strip with purely perpendicular force upon the box as fast as it is severed. When the piece is thus completely affixed, the roller, in returning, represses the strip, the line of gradually-advancing pressure moving in the opposite direction. WVhen the roller reaches its initial position, the clutch automatically disen gages and the stop V arresting the motion of the shaft, stops all parts of the machine in precisely the positions that they had at first.

It is to be observed that the, whole force is applied at all times on a mere line, and hence that each point is forced down with great power; that this line advances from end to end of the strip and that the air is thus necessarily forced out instead of being merely compressed; that affixing a part of the stay-piece before severing is completed prevents dis-,

placement and that this latter end is further subserved by the rocker-like action of the pressing-surface, whereby all traction is avoided; that in case unequal thicknesses of box material lie upon opposite sides of the horn the latter automatically moves laterally and thus equalizes the pressure, and that this rocking motion of the pressing-surface may be produced in other obvious ways.

That I claim isi 1. The combination with mechanism for supporting a box and for pressing a stay strip upon the same, of means for feeding the end of a continuous strip across the corner of the box, means for severing a piece from the end of said strip by a cut beginning at one edge and advancing across the strip, and means for pressing the piece upon the box as fast as it is severed, whereby the uncut portion holds the piece until the partial affixing prevents displacement.

2. The combination with a horn and devices for feeding a continuous stay strip over a box supported thereon, of aroller arranged to roll along the box transversely to the line of direction of said strip, and devices arranged to cut across the strip just in advance of the rollers line of contact.

3. The combination with a roller and ahorn constructed to co-operate in pressinga stay strip upon an interposed box corner, of a fixed knife located adjacent to the horn, and a knife fixed to the roller and adapted, in conjunction with the fixed knife, to sever a length of the continuous strip as the roller advances, substantially as set forth.

4:. The combination with a horn and a roller arranged to co-operate in pressing a stay'strip upon an interposed box corner, of devices for feeding a stay strip between said horn and roller, and means for imparting to said horn a positive downward movement at the beginning of the feed and for returning the same to position when the feeding is completed.

5. The combination with a roller and a horn constructed to co-operate in pressing a stay strip upon an interposed box corner, of mechanism for feeding said stay strip over said box corner, a tilting guideway directing said strip in its advance and a flange upon said roller for engaging and depressing the guide way during the rollers movement, substantially as set forth.

6. The combination with a horn and a roller arranged to co-operatein pressing a strip upon a box corner, of positive mechanism for carrying the roller back and forth along said corner and for imparting to the roller during said movement positive rotation.

'7. The combination with a horn and a roller arranged to co-operate in pressing a strip upon a box corner, of positive mechanism for carrying said roller bodily along the box, and means for imparting to the roller during said movement positive rotation exactly corresponding to the bodily advance, whereby the roller exerts pressure without traction.

8. The combination with a horn and a guideway approximately parallel to the same, of a carriage arranged to move along said guideway, and a roller borne by the carriage in position to press a stay strip upon the corner of a box resting upon said horn.

9. The combination with a roller and a horn constructed to co-operate in pressing a stay strip upon an interposed box corner, of mechanism for positively revolving said roller, which mechanism consists in part of a fixed rack in combination with suitable gearing borne by the roller, substantially as shown.

10. The combination with a horn and a guideway approximately parallel thereto, of a carriage arranged to move along said guideway, means for imparting a reciprocating movement to the carriage, a roller borne in position to press a stay strip upon a box resting upon said horn, and means for at will varying the distance of the guideway from the horn.

In witness whereof I have hereunto subscribed my name, on this 25th day of January, 1894, in the presence of two witnesses.

MERRIOK FRARY WILSON.

Witnesses:

W. E. WILLIAMS, MARY E. LEETE.

Images