US1881474A - Stapling machine - Google Patents

Description

Oct. 11, 1932. I o, BB 1,881,474

STAPLING MACHINE Filed Jan. 14. 1929 4 Sheets-Sheet 1 iii-um..-

Inventor OscanD. 6 i bbS g/ Attorriey Oct. 11, 1932. o. D. GIBBS STAPLING MACHINE 4 Sheets-Sheet 2 Filed Jan. 14. 1929 m w m n w m m m b 6 & D r M9 &

v L y B Oct. 11, 1932. o. D. GIBBS STAPLING MACHINE Filed Jan. 14. 1929 4 Sheets-Sheet 3 Inventor Osca r 116: W5

or) Altar nay Get. 11, 1932. Q 31555 1,881,474

STAPLING MACHINE Filed Jan. 14, 1929 4 Sheets-Sheet 4 Inventor Oscar U. Gibbs y a Patented Oct. 11, 1932 UNITED STA OSCAR D. GIBBS, OF ROCHESTER, NEW YORK, ASSIGNOR OF ONE-THIRD TO ERIC ISCHINGER; OF EAST ROCHESTER, NEW YORK s'rAPLI'Ns MACHTLNE Application filed January 14.1929. ScriatNo. 332,468..

ily and easily handled by its operator and considerable time saved by him in fastening the heads into the barrels over the old method of nailing the barrel heads in place.

Another object of this invention is to drive the staples in place in the barrel and barrel head so that they can be readily and quickly removed with a suitable tool when it is desired to remove the head from the barrel.

Another object of this invention isto so construct the stapling machinethat it will clamp itself automatically 'in place on the barrel or: container while a staple is being driven into the barrelor container.

Another object of this invention is to so construct the machine that it will automatically release itself from the barrel or container as soon as a staple has been driven in place by it an the operating lever moved to-its starting position ready to drive the next staple.

Another objectof this invention is to provide a magazine forthe' staples into which a new supply of staples can be readily and quickly placed.

Another object of this invention is to provide a staple in the stapling machine having" nail points so that the staple when driven in place by the stapling machine follows a straight path and canbe driven into the narrow edge of a barrel head or other cover without danger of having one or both offthe prongs of the. staple deflected either above or below the barrel head.

All these and other objects of this invention will be apparent from the accompanying the end thereof.

drawings, the specification and the claims at In the accompanying drawings: I

Figure l is a side elevation of the stapling machine partly broken away and positioned on the chime of a barrel illustrated in section, the machine being ready to drive a staple thru the barrel hoop and barrel stave into the edge of thebarrel head.

Figure. 2- is a front elevation of the upper portion of the staple magazine of the stapling machine. I w

Figure 3 is a rear elevation of the upper portion of the staple magazine of the stapling machine.

Figure 4 is a horizontal sectional view thru the staple magazine of the stapling machine,

the section being taken on the line 4m4a; of

the staples used in the stapling machines.

Figure 3.

Figur'5 1s a top plan view and partial 6 section of the staplingmachine as it appears positioned on the chime of a'barrel after the operating lever has been moved to drive a staple into the barrel head.

Figure 6 is a vertical sectlonalview ofthe 70 stapling machine, the section being taken on the line 6m6w of Figure 1. l

Figure 7 is a vertical sectio'nal view of the stapling machine, the section being taken on the line 7w7m of Figure 1. I

Figure 8 is a side elevationof a modified form of the stapling machine.

Figure 9 is a side elevation'of another mod ified form of the stapling machine, arts of I the machine being broken away to s ow the 6 operating mechanism thereof. I

Figure 10 is a top-plan. view of the modified stapling machine illustrated in Figure 9. Figure 11 is a perspective view of one of Figure ,12 is a' side elevation of a slightly .modified form ofthe stapling machine.

a In the several figures of the drawings like reference numerals indicate like parts. a The stapling machine forming the sub- 90 ject matter of this invention is adapted especially for use in stapling the heads into the barrels, something which has heretofore been done entirely by nailing. The nails were driven from the outside of the barrel thru the barrel hoops and staves into the edge of the barrel head but usually only one out of three nails would find its way into the edge of the barrel head, the others being driven either above or below the head which would make them practically useless for holding the head in place in the barrel. 'Many more nails than are needed are thus always used when fastening a head into a arrel by means of nails. In addition .tothe waste in nails there is also a waste of-time necessary for driving the extra nails. Driving unnecessary nails furthermore tends to split the wooden barrel hoops and when the barrel head is to be removed increases the work because nails are difficult to remove, especially after their heads have been damaged, so that many times it'is found necessary to destroy part of the chime of the barrel before the head can be removed.

The use of staples in place of nails reduces the number of fasteners'needed to hold the head in place and also makes it possible to remove the head much quicker andeasier and without destroying the chime of the barrel or aportion of it or the head itself.

' The use of the stapling machine for driving the staplesin addition reduces the time driver 5. a bottom-7 is provided and in this.

for fastening the head in place and makes the driving of the staples positive so that every staple is a positive fastener even when driven in place by an unskilled workman, as such a man may operate the stapling machine when he cannot handle a hammer todrive a nail straight. i f

The stapling machine comprisesthe head in which the throat 2 is provided in the form of arecess which extends into the'head from the bottom thereof. The head itselfis made up of a pair. of parallel. sides 3 and d which are suitably held together and on one side'of the throat supports the staple .driver 5 and its operating mechanism, and on the "other side of the throat the clampingj aw 6 and its operating mechanism. j Y

In thehead section which supports the bottom is formed the guide channel 8. The vertical guide rib 9 'on'the under side of the driver 5 engages into this channel and guides the driver in a straight line in its movement back and"forth. At the rear the driver is built up and from it extend a pair of horizontal guide ribs 10 and 11 whichproject intoand thru corresponding guide slots provided in the sides of the head. To: the guide ribs 10 and 11 are pivoted the links 14, 14 which in turn are pivoted to the operating lever 15 at 16. The operating lever .is. pivoted to the movable base 17 whichis slotted at 18 and extends into the head of the machine and bolts 19 and 20 project from one side of the head to the other and pass thru the slot 18 and guide the movement of the base 17 in a straight line during a limited movement back and forth on the head.

Fastened to the bottom of the base 17 at the forward end thereof is the clamping jaw 6. This clamping jaw comprises a thin fiat blade having the shape of a segment with the curved edge thereof beveled toward the bot tom to form a sharp edge that can engage the chime of the barrel to hold the stapling machine in place on the barrel while a staple is driven in place.

The successive positions of the operating lever in first clamping the stapling machine in place on the chime of the barrel and then operating the driver to force a. staple thru the barrel hoop and barrel stave into the bar'- rel head are indicated by numerals I, II, and III of which the clamping position II is shown in full lines in Figure 1, while both the starting position and final position of the lever are shown in dotted lines. The full line position of the lever 15 in Figure 5' is that which corresponds with the dotted line position III of Figure 1.

When theoperating lever 15 is placed in the starting position I the base 17 has been slightly moved to the right in order to withdraw the sharp edge of the clamping jaw from the throat opening 2 and allow the chime of the barrel to enter thereinto. The stapling machine is then supported on the head 21to be fastened into the barrel by the base 17 and the clamping jaw 6 These two members of the machine when resting on the head 21 also serve to gauge the vertical position of the stapling machine by supporting the driver inthe proper elevation with relationto the elevation of the headin the barrel so that when the staple is driven in place by the driver it is forced into the center of the head orvery nearly so and not above or below it.. The first movement of the operating lever from I to II moves the base 17 and with it the clamping jaw 6 to the left until the sharp beveled edge of the clamping j awengages the inside of the chime of the barrel. When engaging the chime from'the. inside thejaw 6 draws the opposing side of the throat opening 2.. against the outside of the barrel and the barrel hoop 22 surrounding it, which results in a firm hold of the head of the stapling .machine on the chime of the barrel.

The next movement of the operating lever- 15 from position II to position III drives the staple in place by drawing the-links 14: and

The links 14 also swing downwardly during the rearward motionbut the driver 5 moves in a straight line due to the guide members that are associated therewithand engage the with them the rear of the driver 5 to the right.

guide slots and guide channel provided in the head, as above described.

' ders 23 and 24 so that the forward con'caved end of the driver 5 engages this straight connecting section of the staple the full length of it. On the movement of the driver toward the throat opening of the machine, the staple is thus embraced on the sides, supported at the bottom and engaged the full width at'the rear to insure a straight movement of the staple from which it cannot deviate while it enters the hoop, stave and barrel head.

The magazine of the stapling machine comprises a pair of uprights 25 and 26 which are fastened to the inside of the head of the stapling machine at the lower end thereof and extend down to the bottom member 7 thereof as illustrated in Figure6. At suitable intervals the brackets 27 and 28 embrace the uprights 25 and 26 and space and hold them with relation to each other above the head of the stapling machine. Intermediate of the uprights 25 and 26 is the vertical guide bar 29 which is held intermediate of'the vertical members by the brackets 27 and 28 in order to provide space on each side of the guide member to have the parallel sides of the staple engage between the uprights and the guide member and permit their moving down between them. The staples are inserted into the magazine by placing them in a straddling position over the guide member 29 and between the uprights 25 and 26 as illustrated in the several figures of the drawings. The staples are held in place in this position by the vertical locking rod 30 which carries at the upper end the head 31 andat the lower end the horizontal pin- 32. On the locking rod 30.isymounted to'slide the follower 33 and between the follower 33 and the head 31 the rod is surrounded by the expansion spring 34. The locking rod is placed in position in the rear of the staples after the staples have been placed into the magazine by first inserting the lower end thereof into the rev hole in the head 31 so that the rod 30 is held both at the top and bottom at a-predetermined distance from the magazine which allows the staples to move down in the magazine but prevents them from dropping out therefrom.

The pressure of the expansion spring 34 on .the follower 33 moves the staples whenever the lowermost of; them has been removed by the driver of the stapling machine and has :moved back toits starting position to allow the next one to take its place.

the staples in the magazine are under a constant pressure that will insure a proper feed of the staples just as fast as the staples are forced out of the magazine and driven into the barrel head.

To hold the locking rod in place after it has In this way been inserted, as above described, an inverted U-shaped latch 36 is pivoted to the extension 35. so that it can be swung from the dotted lineposition in Figure l to the full line position thereof to embrace the head 31 and'hold it down into engagement with the extension 35 until it is desired to withdraw the rod for the purpose of refilling the magazine with staplesl a,

The stapling machine so far'described is provided with a movable clamping jaw and the chime of a barrel having a steel hoop is to be inserted. The movable clamping jaw described in connection with the stapling machine permits the use of a large throat open ing suitable for both wooden and steel hoops.

However, should it be desirable to make two types of stapling machines, one for the steel hooped barrel and the other for the wooden hooped barrel, either a large or a small throat opening, can be used in connection with a stationary jaw 40. Such a construction is illustrated in Figure 8. The construction illustrated in this figure does away with the link which connects the operating lever with the driver, as the operating lever 41 is directly. connected to the driver at 42, while the lower end of the operating lever is pivoted to the head of the stapling mabe wider than the throat opening into which chine by means of the link 43. Of course the operating lever must be" made forked in order to straddle the head of the machine and engage the driver on each side as described in connection with the machine illustrated in Figure 1. The lower end of the forked operating lever'is'thus hinged to the head by a pair of links 43,- one on each side of the head of the machine.

Building the machine in the manner illustrated in Figure 8 has the further advantage in that alonger leverage is provided so that less power is needed to drive the staples in place. Furthermore the tendency for the head, while moving the operating lever, is

to hold the head down ontothe chime instead of lifting it up as is the case with the arrangement of the lever on the machine.

illustrated in Figure 1. The machine illustrated iri Figure 8'thus clamps itself in place as soonasthe staple is driven into contact with the outside of the hoop of the barrel because the pressure exerted against the staple will also draw the clamping jaw against the inside of the chime so that any possible disengagement or movement of the head of the stapling machine is prevented as soon as the staple begins to enter the hoop of the barrel.

Tn Figures 9 and 10 the machine has been modified to drive a staple into the inside of the chime from the inside of the barrel just above the head in order to form a series of lugs on the inside of the chime that keep the head from raising up out of the barrel after it has once been placed in position therein. Tn this form of the machine, the driver and magazine are located to the right of the throat opening of the head of the machine or on the inside of the barrel when the stapling machine is placed on top of it.

In the machine illustrated in Figures 9 and 10 the head thereof has the throat opening 51. which extends into it from the bottom as in the other stapling machines but instead of the clamping jaw the throat opening has an anvil block 52 on one side against which the points of the staple is forced thru the chime of the barrel and the hoop surrounding it and prevents these points from projecting from the hoop or turns. these points over on the outside of the hoop so that in either case no sharp points from the staples can injure any one coming in contact with the hoop into which the staples have been driven.

The thickness of the anvil block can be decreased by the removal of the auxiliary block 53 which consists of a steel bar that is inserted into the head between its sides and is suspended therein by the engagement of the pin 54 into the hole 55 provided in the steel bar. The bar is held in the position in which the pin 54 engages into the hole 55 by the spring 56 mounted on one side of the bar and yieldinglyresting against the pin 57 so that yielding pressure of the spring forces the bar against the anvil bloclr proper as illustrated in the drawings. Vihen it is desired to remove the auxiliary block it is swung to the right into the dotted line posi tion shown in Figure 9 against the pressure of the spring. Such a movement disengages the pin 54 from the hole in the block 53 and allows it to be withdrawn from between the head of the machine The auxiliary block is withdrawn whenever the head of. the stapling machine is positioned over the chime of the barrel at the points where the ends of the wooden hoop overlap each other and thus increase the thickness of the hoop at this point to almost twice the thickness of the hoop proper.

The driver 58 of the stapling machine is mounted toslide back and forth below the magazine 59 of the machine in practically the same way as is described in connection with the drivers of the stapling machines illustrated in Figures 1 and 8 except that the driver is located very close to the top surface of the barrel head in order to drive the staple into the chime direotlyabove the upper surface of the barrel head. A portion of each staple after being. driven into the chime is allowed to project from the chime and these projecting portions of the staples on the 1nside of the chime form shoulders which hold the barrel head in place in the barrel below the chime as illustrated in Figure 9.

The driver 58 is operated by the forked operating lever 60 which is pivoted to the outer end of the links 61, 61, that in turn are pivoted to the side of the head of the stapling machine at 62. The operating lever is connected to the driver at 63 so that on the movement of the lever from the dotted line position to the full line position the lowermost staple in the magazine is forced from beneath the magazine into the inside of the chime and thru. the barrel stave and barrel hoop against block 52 or 53. As the staple is forced into the chime the anvil block is at the same time drawn against the outside of the barrel hoop so that the points of the staples cannot be forced thru the barrel hoop but are stopped by the anvil block or turned over in the barrel hoop.

The sides of the head of the stapling ma- 1 chine, illustrated in Figures 9 and 10, extend to the rear and spread so as to form a wide base that i will support the machine in an upright position when "placed on top of the barrel head. ile the lowermost staple is held slightly above the barrel head as long as it is located in the magazine it tilts down against the surface of the head as soon as it is driven from the magazine and enters the chime directly above the surface of the head of the barrel and not a distance from it.

The staples used in the stapling machines, above described, are formed as illustrated in Figure 11. An inspection of this figure will show that the staple is provided with nail points 65, 65 instead of the customary wedge shaped points that are provided on all staples at the present time. This deviation from the wedge shaped point to the nail point inthis staple is important as it has been found that wedge shaped pointed staples will not worlr as well in the stapling machine for the purpose of fastening a barrel head in place; in

fact, in some cases will not work at all. This 4 despite the beveled surfaces of the edge, while wedge shaped pointed ends of a staple will be deflected by the bevelededge of the barrel head and either project above the top or below the bottom of the head without entering it.

I claim:

1. A stapling machine comprising a head having a throat opening extending into the bottom of it, a driver in said head on one side of said throat opening and below it, means for positioning a staple in said head in front of said driver to have said driver force a staple into a pair of elements, one of which projects into said throat opening and the other of which is located below said opening while at the same time drawing the opposite side of the throat opening against the back of the element projecting thereinto, and a supporting member projecting rearwardly from said head above said driver to rest on one of the elements to be stapled and support said head with its driver in line with this ele- -ment on which the head is supported.

front of a pair of elements, one of which projects into said throat opening and the other of which is located below said throat opening and draw said gripping jaw against the back of the element on the engagement of said staple with the element projecting into said throat opening, and a supporting member projecting rearwardly from said head above said driver to rest on one of the elements to be stapled and support said head with its driver in line with this element on which the head is supported.

8. A stapling machine having a head with a throat opening extending into the bottom of it, a driver in said head on one side of said throat opening and below it, a gauging member on said head on the other side of said throat opening adapted to decrease the width of the throat opening in relation to the thickness of the element projecting into the throat opening, and means for operating said driver to force a staple into the element from the opposite side of the gauging member below the throat opening.

4:. A stapling machine having a head withv a throat opening extending into it, a driver mounted in said head on one side of said throat opening and below it, a combined gauging member and gripping jaw on said head on the opposite side of said throat opening, means for positioning a staple in front of said driver to have said driver force the staple into the outside of an element located .in the throat opening and into the end of an element located below said throat opening and extending from the inside of said first element while drawing the gripping member against the inside of the first element located in the throat opening, and a supporting member projecting rearwardly from said head above said driver to rest on one of the elements to be stapled and support said head with its driver in line with this element on which the head is supported.

5. A stapling machine for stapling barrel heads into barrels comprising a head, having a throat opening extending into it, a driver mounted in said head on one side of said throat opening and below it, a gripping member carried by said head and located on the opposite side of said throat opening, a staple magazine carried by said head and means for feeding staples from said magazine in front of said driver, means for operating said driver to force one staple at a time into an element projecting into the throat opening and into an element located below said throat opening while at the same time engaging said gripping member with said element projecting into said throat opening to hold said stapling machine fastened to the element while a staple is driven into both of said elements by the driver, and a supporting member projecting rearwardly from said head above said driver to rest on one of the elements to be stapled and support said head with its driver in line with this element on which the head is supported.

6. A stapling machine for stapling barrel heads into barrels comprising a head having a throat opening extending into it, a driver mounted in said head on one side of said throat opening and below it, means for loeating a staple in front of said driver, means for simultaneously operating said driver in said head and forcing said head against the rim of the barrel and holding said head in place on the rim while the driver forces the staple into the barrel below the rim into the edge of the barrel head, and a supporting member projecting rearwardly from said head above said driver to rest on one of the elements to be stapled and support said head.

with its driver in line with this element on I which the head is supported.

7. In a stapling machine for stapling the heads of barrels into the chime thereof the combination of a supporting base adapted to rest on the head of the barrel, staple driving means supportedby said base on the outside of the barrel and means for simultaneously forcing said base down onto the barrel head within the barrel and operating said staple driving means to drive a staple into the edge of the barrel head below said base from the outside of the barrel.

8. In a stapling machine for stapling the heads of barrels into the chimes thereof the ed by said base at a point opposite to but be low said jaw to drive a staple into the barrel and the rim of the barrel head located within it from the outside of the barrel at a point below said jaw, said staple driving means 1 operating to simultaneously drive the staple b ll into the barrel in one direction while drawing said jaw against said barrel in the opposite direction and prevent the raising of said base from the barrel head during the driving operation. a

' 9. in a stapling machine for. stapling the heads of barrels into the chimes thereof, the combination of a base adapted to rest on the barrelhead within the barrel, staple driving means supported by said base on the outside of thebarrel approximately in line with the barrel head on which'said base is supported,

and an operating leverpivoted on said base and connected to said staple driving meansto drive a staple on the downward motion oi said lever and to hold said base in place on said barrel head while a staple is being driven into the edge of the barrel head belowv said,

base

j 10. In a stapling machine for stapling the heads of barrels into the chimes thereof, the combination of a base, a jaw on said base adapted to engage the inside otthe barrel above the head, and staple driving means supported by said base on the outside of said barrel, said staple driving means operating to draw said jaw'against the inside of the barrel on the driving or" a staple and position said. base and staple driving means in a radial position with relation to the barrel and barrel head, i

ll, In a stapling machine for stapling barrel heads into the chimes of barrels the combination of a base, a laterally adjustable jaw mounted on said base, and staple driving meanssupported by said base opposite to said jaw and below it so as to drive the staple into thebarrel head below said jaw while drawing said against the inside of the barrel on the operation of said staple driving means, said laterally adjustable jaw being adapted to increase and decrease the distance between the edge'oi said jaw and said staple driving -meane I l in a stapling machine for stapling barrel heads into the chimes of barrels the com bination oia base adapted torest on the bar rel head, a frame supported on said base and projecting outwardly and downwardly there.

of with a threat opening between said base and the downwardly projecting portion of said frame, a staple-drivingmember mounted in said frame in a plane approximately par allel to and below the plane of said base, and an operating lever pivoted on said frame and connected to said driving member'to move eaner-a said driving member on the swinging of said operating lever toward said base.

13. In a stapling machine for stapling barrel heads into barrels the combination of .a base, adapted to rest on the barrel head within the barrel, an overhanging frame at the front of said base overhanging the barrel, a rearward extension at the back of said base, a

driving member mounted in said overhanging frame, a staple magazine projecting upwardly from said overhanging frame, staple feeding means in said magazine, and an operating lever pivoted on said overhanging frame and connected to said driving member and adapted to swing toward said base and the rearward extension thereof to hold the barrel head down in the barrel and said base on top of it while a staple is being driven into the edge of the barrel head,

14. lln a stapling machine for stapling barlid rel heads into barrels the combination of a base adapted to rest'on the barrel head, an overhanging frame supported on said base overhanging the barrel, a driving member mounted to slide in said overhanging frame,

frame, and a bifurcated lever pivoted to said overhanging frame with said driving member located between the bifurcation and connected thereto, said bifurcated lever straddling said overhanging frame and said magazine to permit said bifurcated lever to swing rearwardly and downwardly toward the base and the, barrel head while driving a staple from said magazine into the barrel head.

15., In a stapling machine for stapling'bara magazine supported by said overhanging till) rel heads into barrels the combination of a base adapted to rest on said barrel head within the barrel, a frame supported by said base overhanging the barrel and projecting on wardly therefrom, staple driving means mounted in said outwardly projecting frame, and an operating lever for said staple driving means pivoted on said frame so-as to swing down towards said base and over the barrel head on which itv rests to permit the operation of said driving means from the rear and side or": the barrel. A

l6. lln a stapling machine for stapling barrel heads into barrels having a flange project ing above the barrel head, the combination or": supporting means adapted to rest on the barrel head within the flange of the barrel, staple driving means and means on the outside ct K the flange of the barrel substantially in line with said barrel head on the inside oi the flange of the barrel for operating said staple driving means, said staple driving means cooperating with saidsupporting means to hold said stapling machine ina predetermined positionon the barrel head and clamp it to the barrel flange surrounding the barrel head on staple driving meansw 1'7. In a stapling machine for stapling two members together at right angles to each other the combination of staple driving means, a; swinging lever for operating said staple drivingmeans, a supporting member for support* ing said staple driving means on one of the members to be stapled and a rearward extension provided on said supporting member to form a brace for said supporting member to brace it against the movement of said swinging lever down toward said rearward extension and the member supporting it on the operation of said staple driving means.

In testimony whereof Iafiix my signature.

OSCAR D. GIBBS.

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