US1459020A - Stapling machine - Google Patents

Description

June 19, 1923. 1,459,020 P. B. EYTCHISON STAPLING MACHINE Filed March 28 1922 grwen kw Ra ly 5. 594mm.

Patented June 19, 1923.

PUB/LY BQEY'ICHISON, OF IWI'I.QIHTI-IHQIL, NEBRASKA.

STAPLING MACHINE.

v Application filed March 28, .1922. Serial no. 547,411.

To all 107mm it may concern: I

Be it known that LPURL B. EYroHrsoN, a citizen of the United States, residing at Mitchell, county ofScotts Bluff, and State of Nebraska, have invented certain new and useful Improvements in Stapling Mae.

chines; andv I do declare the following to 'be a full, clear, and exact description of the invention, such as'will enable others skilled in the artto which it appertains to make and use the same, reference being had to the accompanying. drawings, and to the characters of reference marked thereon, which form part of this specification.

Th object of this invention is to produce a machine or tool that can be conveniently and efiiciently employed by fence builders for the purpose of securing fence wire to steel angle posts by means of ordinary staples. p I

- It is customary today in all parts ofithe country where timber is not plentiful,- to employ posts made of steel angles; these posts'may be driven into the ground by a Sledgehammer and do not require holes to be dug for their reception. In order to fasten the fence wire orother fencing to the posts, they are usually provided along one side with a plurality of spaced elongated holes or slots for the reception of staples.

The staples are usually placed over the wire. andpushed through the slots in the post, after which the ends of the staples are spread and finally clinched by means of a hammer and portable anvil.

It is the object of this invention to pro vide a simple and substantial machine which will eliminate pushing the staples through .the slots with the fingers, the staple being put in a slot in the machine which, during theprocess of placing'the machine in position, places th staple-over the wire and through the slot. The machine is so designed that after the machine and the staple are properly placed and adjusted, a pull on the operating handle will cause the machine to spread the ends of the staple by bending it directly at the end of the slot and finally turning the ends of the staple down fiat against the back-of the post and giving it the maximum strength and resistance. U have also designed my, machine in such a manner that it can be-easily put in place on a wire, and-have also'provided it with means .whereby it may easily pass back over the ation.

trating the wire when the clinching operation has been completed. V l y i The above objects are attainedbymeans of a construction which Iwill now describe. reference being had for that purpose to the 1 accompanying drawing, in which- A i I Fig. 1 is a side elevation of. my. stapling toolshowing the same in place on a post and in the position it occupies'at the begin-' ning of the operation. y I

Fig. 2 is a side elevation similar to that shown in Fig. l, but showingthe position of the parts at the'endof the clinching foper- Fig. 3 is a view of the machine itself seen from the opposite side from thatin Figs.

1. and ,2, and having a part thereof omitted so asto more clearly show the construction. Fig.4 is a fragmentary viewwith portions shown in section for the purpose of illusconstruction of the adjustable abutment.

Fig. 5 is a fragmentary View looking in the direction of arrow 5, Fig. 6, showing the manner of anchoring the tool to the post. i

Fig. 6 is a view looking in the directionof arrow 6 in Fig. 5, with a portion broken away to show the mannerof securingthe anchor member in place.

Fig. 7 is a side elevationof one of; the wedge clinching members.

Fig. 8 is a front View thereof looking in the direction ofthe arrow 8 in Fig. 7 and Fig. 9 is a longitudinal section taken. on line 9-9, Fig. 8.

The same referencenumerals will be used to indicate the same or similar parts throughout the several views.

Numeral 1 represents an angleir'on post to which it is desired 't0 connect the wire 2 by means of astaple 8. My stapling tool consists of a body member 4 which is 'probody member 4 is of elongated shape and is .vided at one end witha handle 5-and' at the f other end with a cross head member '6. The

provided intermediate its ends with a. slot 7 Y which serves as a guide for a slide block8,

whichhasi secured to the front end thereof a bar 9. Secured to the bodymember dis a bracket 10, to the end of whichis pivoted by suitable means, such as a bolt 11, a handle 12. A s lot 13 is provided in handle 12 in such aposition that it will accommodate the pin '14 which passes therethrough and intothe slide block 8.v It is apparent from l the abovethat when the handle 12 is moved nearest to arms 17 and 18 with a pair of spaced shoulders 23 and 24, the former of which engages with the side of arms 17 and 18 when the tool occupies the position shown in Figs. 1 and 3, and the latter of which engages the arms when the tool is in the position shown in Fig. 2. Surrounding the pivot pins 21 and 22 are springs 25, which have one end extending into a hole in'the pivot, and the other end 26 engaging with the inside of the wedge, all as shown in Figs. 8 and 9. A spring 27 has its ends secured to pins 28 and 29 (Figs. 1 and 2) and is under tension whereby the arms 17 and 18 are constantly urged towards each other. The parts are so proportioned that when the bar 9 and arms 17 and 18 occupy the advanced position shown in Fig. 1, the wedge members 19 and are permitted to contact, but as handle 12 is moved backwardly, carrying with it the bar 9, the arms 17 and 18 will be engaged on their inner side by the sides of cross head member 6, in the manner shown in Figs. 3 and 4, and this will cause the wedge members to move apart. As handle 12 is moved to the position shown in Fig. 2, the wedges 19 and 20 will pivot on each other and spread the arms out into almost parallel relation, whereby shoulders 24 will engage the arms and hold them in substantiallyrectangular position, while the sides of the staple are forced flat against the side of the post (Fig. 2).

In Fig. at I have shown a view in which some of the parts are shown in section, for the purpose of better showing the construction by means of which 1 am enabled to hold the staple and to force the same against the post as the tool is operated. I provide a hole 30 which extends longitudinally through the head" 6; this hole is of such size that it will freely receive the end of an ordinary staple. In order that the staple may be shoved out as the tool is operated for clinching the same, I provide a slide, 31 whose forward end projects a short distance into the opening 30 when the tool is in the position shown in Fig. 1, and which is guided in a slot formed in member 32. One side of slide 31 is provided with teeth 33 which engage corresponding teeth on a pinion 34D which is pivoted at 35 and is provided with an arm 36 having a longitudinal slot 37 which cooperates with pivot pin 16.

1t willbe seen that when bar 9 and pin 16 are in their forward position, as shown in Fig. 1, the slide 31 will be moved backwards and provide an opening 30 of the maximum depth. Vithin this opening the staple is placed and held while the tool is passed over the wire and anchored to the post. hen handle 12 is moved rearwardly, pinion 3 1 will rotate about the pivot 35 and force the slide or abutment member 31'forwardly, thus causing the staple to be moved forwardly against the approaching wedges. lf it is desired to make a tight clinch, the abutment slide 31 is so adjusted that it will -move the staple well towards the front as the clinching operation is taking place, whereas if it is desired to make a loose clinch, abutment slide 31 may be so adjusted with respect to the pinion 34 that it will not be shoved close up against the Wire. The adjustment of the abutment is accompiished by changing it a cog one way or the other with respect to the pinion.

In order to anchor the tool to the post, I provide on one side thereof a member 38, which is provided at its outer end with a hook 39 which engages the edge of the post in the manner shown in Figs. 5 ,and 6. The inner end of member 38 is pivoted at 40 and is provided with a spring 411 which tends to hold the member 38 against the side of the post. A plate 12 is secured to one side of head 6 and has outwardly extending arms which serve to guide the arms 17 and 18 and to keep them in contact with the head.

In Fig. 3 I have shown how the arms 17 and 18 and the wedge jaws may be spread apart so as to provide space for withdrawing the tool from the wire 2.

The operation of my tool is as follows: When it is desired to secure a wire to the post 1 by means of a staple 3-, the handle 12 is brought forward to the position shown in Fig. 1, and the staple inserted into the opening 30 until it is stopped by the abutment 31.v The tool is then slipped over the wire and the staple 3 so placed as to straddle the same and to be inserted into the opening in the post. The parts will now occupy the position shown in 1. The operator then sees that the anchoring plate 38 engages with the post in the proper manner, after which he grasps the handle 12' and moves the same backwards As he does so, bar 9 and arms 17' and 18 move backward'ly and carry the tips of wedges 18 and 20 between the legs of the staple. As the movement continues, the arms will be spread apart by the wed gin-g action of head 6, and the wedges will move outwardly and spread the staple. Shoulders 24 will finally engage the sides of arms 17 and 18v (Fig. 2 and a further pull on the handle 12 will flatten the sides of the staple against the post. During the entire movement of handle 12, the abutment 31 has been forced forward and with it the staple 3, which has thus been moved towards the wedge-shaped clinching members. Vhen the staple has been clinched, handle 12 is then moved to about the position shown in Fig. 3. Anchor plate 38 is released and the tool is removed from over the wire by being pulled backwards over the same, as shown in Fig. 3.

From the above it is apparent that I have provided a stapling tool that is of substantial construction, that can be readily applied in place and removed, and which is provided with an abutment to hold the staple in place, as well as with spreading and clinching means that will quickly and positively bend the staple at the surface of the post and clinch thesame fiat against the 0st. p I have also provided my tool with an adj ustable abutment, by means of which I may perform a tight clinch which will prevent slack running from post to post in case of a broken wire, or I may make a loose clinch whenever that is desired.

Having now described my invention, I claim ist 1. A stapling tool, comprising in combie nation, a body member, a head member secured to one end provided with an opening adapted to receive and hold a staple, a member slidable in said opening and adaptwhat ed to serve as an abutment for the staple, a

force the free ends of said arms together, positive means "for moving them apart as the slidable bar is moved rearwardly by the handle, and means for moving the slidable abutment member as the arms are moved.

2. A stapling tool, comprising in combination, a body member, a head member secured to one end provided with an opening 7 adapted to receive and hold a staple, a member slidable in, said opening and adapted to serve as an abutment for the staple, a handle pivo-tally connected to said bo-dymember, a-

bar slidably connected with the body n1ember, means-whereby said bar may be moved at will. by moving the handle, an arm pivoted to each end of said slidable bar, a wedge member secured to the free end of each arm, resilient means tending to force the free ends of said arms together, positive means for moving them apart as the slidable bar is moved rearwardly by the handle, means for moving the slidable abutment member as the arms are moved, and means for adjusting the extent of the forward movement of said abutment member.

3.A stapling tool, comprising a body said free ends in converging relation, means v I for moving said slidable bar with respect to the head, and positive means for moving the free ends of said arms apart as thewedges are moved toward the head.

In testimony whereof I affix my signature.

PURLY B, EYTcH soN.

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