US1133862A - Staple-affixing machine. - Google Patents

Description

v G. F. HULLINGSBz-D. P. MOORE.

STAPLE AFFIXING MACHINE. 7 APPLICATION FILED 001210, 1914.

Patented. Mar. 30, 1915.

5 1miimmm1mm" FFEQE.

GEORGE E. HULIiINGS AND DAVID E. MOORE, O1 -WASHINGTON, DISTRICT OF COLUMBIA.

STATELE-AFFIXING MACHINE.

Specification of Letters Patent.

latentedhlar. 30, 1915.

Application filed October 10, 1914. Serial No. 366,096.

To aZZ 107mm it may cone-err Be it known that we, Gnpnon F. HULLiNGs and DAVID P. Moons, citizens of the United States, residing at Washington, in the District of Columbia. have invented certain new and useful improvements in Staple- Aliixing Machines, of which the following is a specification.

The present invention relates to improvements in staple allixing machines.

One object of the present invention, is the provision of a machine of this character which will accommodate and operate upon a flat strip of staples, the strip being fed intg the magazine of the present machine anrhbelow the plunger, so that upon the driving movement of the plunger, the first staple will be severed and driven, while the second staple will have the prongs thereof bent in staple form simultaneously therewith.

A further object of thep' isent invention, is the provision of a machine ofthis character in which the pawls for moving the strip and for holding it against a retrograde movement are so mounted as to be readily released from the strip to permit of the adjustment of the strip or the removal thereof from the machine without the necessity of cutting and forming the staples, and thus preventing the clogging of the machine.

A still further object of the present invention is the provision of a machine of this character which is simplified in its construction, the parts being made more durable and such machine being constructed to accommodate a reel of connected partially formed staples, so that such partially formed staples may be carried and readily attached to the present machine to be formed, severed and clenched by the plunger and other mechanism thereof.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter desc ed and claimed, it being understood that changes in the precise embodiment of the inkO vention herein disclosed-can be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings Figure l is a side elevation partly in section of the present machine,

the operating lever being broken away at the top as is also the head of the plunger. Fig. Q is a sectional view through the magazine showing the feeding and retrograde preventing pawls in proper position relatively to the strip of staples, the feeding pawl being shown in section. Fig. 3 is a section taken on line 33 of Fig. 1.. Figs. 4, 5 and 6 are detail views of the staple engaging end of the plunger. Fig. 7 is a. top plan view of the machine, the forward portion of the base and magazine being broken away as well as the operating lever. Fig. 8 is a top plan view of a reel of the staple strip. Fig. 9 is a perspective view of the feed-in end of such strip. Fig. 10 is a 'section taken on line l0-10 of Fig. 2, such section being through the complete magazine.

Referring to the drawings, the numeral 1 designates the supporting member of the present device, which when properly mounted is supported upon a tubular pedestal (not shown), so that the rod 23 will be extended therethrough and connected to a foot treadle (not shown).

The forward projection 2 of the support 1 constitutes the base and support for the anvil 3, which is provided with the clenching recess 4:. Formed integral with and projecting above the base 2,.are the two lugs 5, which receive the removable bolt or supporting pin 6 for the bar 7 of the magazine 9. The bar 7 is provided as illustrated in Fig. 3, with the two parallel grooves 8, which form recesses to receive the prongs of the tormechstaple 47 carried upon the staple strip as illustrated in Figs. 8 and 9. These strips of staples are preferably formed so that the main body thereof have the prongs i8 in a plane with the body with the spaces 49 therebetween, so that when the prongs are bent as will presently appear, they will produce the stapleas a7.

Mountedin the free end of the magazine 9 for vertical reciprocatory movement, is the plunger 10, which'is provided with the guiding ribs 11. and a lower staple cutting" and driving end 12. To the rear of the end 12 and formed integral therewith is a. projection 13, which is recessed as at 14 (Fig. 4) to receive the prongs l8 of the staple strip and to bend the same downwardly upon the reduced anvil end 7' of the strip 7. Alsoformed integral upon the, rear face of the anoe of t e foamed staple 17 from the strip and at the same time form the next succeeding staple, is a lever 18, the opposite end thereof being pivoted at 19 to the supporting bracket 20. Two rods 21 are pivotallyconnected to the lever 18 intermediate of its ends and are'in turn depended upon opposite sides of thereel to engage the bar 22, which in turn is connected to the a rating rod 23 heretofore described, a helica spring 24 surrounding such rod and normally exerting a tension to hold the lever 18 elevated with the magazine 9 tilted to permit the introduction of an article to be stapled uponthe anvil 3.the magazine as shown in Fig. 1 being illugbrated as resting upogthe anvil just previous to the final depres orgof the plunger 10.

pivoting pin 25,.is. the pawl actuating member 26, the same being provided with the end 27 disposed in the path of the lug '15 upon the upI-trbke, to cause the pawl 31 to be fed forwardly to cause the end 33 thereof to engage the 'strip ofstaples to move the Mounted within dthe magazine 9 u on thev azine 1s a double-terminal spring, whose ter- .70

minal 40 engages the pawl 31 to hold the end 33 thereof resiliently in engagement with the strip and upon the bar 7 while the terminal 41 engages the pawl 36 to hold its end 32 also resiliently: upon the staple strip and bar 7. It will be noted that the free end of the pawl 36 is projected between the staple engaging ends 33 of the pawl 31, and that I the pawl 31 will have free movement during the actuation thereof by also, so' that the portion of said pawl 31 above the free end of the pawl 36 will be in the path thereof to be engaged so that the parts may assume the dotted line position as shown in Fig. 2.

Carried upon the rear end of the bar 7 are the two brackets 43 slotted at 44 to'receive' I the pintle 45 of the reel or spool 45, which:

carries the strip 46 of flat staples. These reels are so constructed that.f-rom three to 2 where the short completed straight stri )s, 4,

as is now the practice, are used. l y

In machines. using formed staples is only practical to use from twenty-five to ninety-two to a strip, those in the ninety-two strip being inconvenient due to the tendency of the metal totwist the staples, and at the same time with staples thus formed, an eX- ceedingly complicated machine is necessary same beneath the plunger, and further with {to cut, and form the strip staples, the prestheprojection 28, which is disposed in the path of the lug 15, so that upon the lowermost movement of the plunger 10, the pawl 31 will be retracted or moved toward the rear of the magazine so that the end 33 thereof will ride upon the strip to engage the next succeeding staple. This member 26 is connected by a pin 30 to thevpawl 31 so that the desired pivotal action may be imparted'to thepawl 31 in its movement to and from the plunger 10. .Mounted for oscillation in the magazine 9 is a transverse shaft 34, which. has fixed thereupon within the magazine, thejretrograde preventing pawl 36, whose teeth 32 are disposedin the path thereof to engage the strip between therespective prongs 18. in the'space 49 adjacent the web thereof and thus prevent the withdrawal of the strip, or the retrograde movement thereof during the downward movement of the plunger lOand the backward movement of the pawl ,31. 'Theshaft 34 is shouldered as at 35, to'receive a key (not shown), so ,that the shaft may be rocked to cause the pawls 36 and 31 to as sume the position as shown in dotted lines Fig. 2, lifting both strip engaging ends 32 ent machine doing away with this and operating upon a strip of herring-bone staples 9 which are formed flat, and can conveniently h be rolled in a coil upon a reel, thus accommodating in a single reel from three to five thousand staples.

As before stated in order to facilitate the 113 operation of-the present machine, a staple 4'? is formed'upon one end of each reel at the initial starting thereof, 'so that the same may be fed under the plunger 10, below the driving and cutting 9,Pd.12 thereof, so that 115' the first staple will nc'it have to be formed when the plunger is driven down, thus presenting at theinitial starting a staple to be severed and driven andfinally clenched in therecess 4 of. the anvil 3, the next succeed- 31 ing staple beingso disposed that the prongs 18 thereof will fit within the recess 11 and v thus be: compressed upon the anvil portion 7 'Y of the bar 7 to be upon the upward movement of the plunger 10, fed forwardly by 3 the feeding pawl 31 under the elevated plan- V ger, thus assuming the position as sh own in. Fig. 1. By this means. the strip Wlll. successively be fed forward so that the present mechanism wil rotate the reel 4'5, according the member 26 and 80 th the distance between the staples, at each elevation of the plunger 10.

What is claimed is:

1. A staple aflixing machine-for operation upon strip staples having a magazine, staple cont-rolling means therein, and manually controlled means for positioning the staple controlling means so that the strip of staples may be withdrawn from the magazine through the feed-in end.

2. A staple afiixing machine for operation upon strip staples having a magazine, a reciprocatory plunger mounted in the magazine, a staple feeding means mounted in the magazine and operated by the plunger, and manually operable means for affecting the feeding means to release the strip of staples to permit their withdrawal through the feedin end of the magazine.

3. A staple aiiixing machine for operation upon strip staples having a magazine, a reciprocatory plunger mounted in the magazine, a staple feeding :pawl mounted in the magazine and operated by the plunger, and manually operated means for releasing the pawl to permit the strip of,staples to be withdrawn through the feed-in end of the magazine. 7

i. A staple afiixing machine, including a magazine, a plunger mounted therein for reciprocation, means for feeding a strip of staples to present one staple at a time to the plunger as the plunger is reciprocated, and manually actuated means for releasing the feeding means from the'staples to permit the withdrawal of the staples from the magazine.

5. A staple affixing machine, including a magazine, a reciprocatory plunger mounted therein, a pawl for feeding a strip of staples operated by the plunger, and a manually operable retrograde movement preventer mounted in the magazine and arranged in such relation to the pawl and strip of staples, that when said preventer is disengaged fromthe staples, the pawl is also disengaged.

6'. A staple afiixing machine, including a magazine, a reciprocatory plunger mounted therein, a pawl for feeding a strip of staples operated by the plunger, a retrograde movement preventing pawl mounted in the magazine for engaging the strip of staples, said latter pawl being adjacent to the first pawl, and means for actuating the retrograde movement preventing pawl to release the strip of staples and to simultaneously release the first pawl from such strip of staples.

7 A staple affixing machine for forming, severing and clenching staples from a strip, including a base, an anvil having a staple clenching recess, a magazine mounted upon the base for movement to and from the an vil, a reciprocatory plunger mounted in the magazine and having a staple severing and driving end and a staple bending and forming member, whereby upon the depression of the plunger, the outer staple is severed from the strip while the next succeeding staple is bent and formed, means mounted in the magazine and disposed to cooperate with the plunger for feeding the staple strip forward upon the upward movement of the plunger, and manually controlled means for positioning said means so that the strip of staples may be withdrawn from the magazine.

8. A staple affixing machine for forming, severing and clenching staples from a strip, including a base, an anvil having a staple clenching recess, a magazine mounted upon the base for movement to and from the anvil, a reciprocatory plunger mounted in the magazine and having a staple severing and driving end and a staple bending and forming member, whereby upon the depres sion of the plunger, the outer staple is severed from the strip while the next succeed ing staple is bent and formed, a staple feeding pawl mounted within the magazine, means connected to the pawl and located in the path of the plunger for actuating the said pawl into the staple engaging and staple feeding position, a retrograde movement preventing pawl mounted in the magazine and having its free end disposed adjacent to the feeding pawl and for engagement with the strip of staples, and means for rocking the retrograde movement preventing pawl to elevate its free end and the feeding pawl both out of engagement with the strip.

In testimony whereof we aiiix our signatures in presence of two witnesses.

GEORGE F. HULLINGS. DAVID P. MOORE.

Witnesses S. C. HILL, W. B. Arrnnnr.

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