US1101659A - Stapling-machine. - Google Patents

Description

H. RAGSDALE.

STAPLING MACHINE,

APPLICATION FILED NOI/12o, 1913.

Patented. June 30, 19M.

narran sfrnirns ra HERSCHEL RAGSDALE, OF CEDAR VALE, KANSAS.

STAPLNG-MACHINE.

morosa.

specification of Letters ratent.

Patented gli une 3Q), 1914.

Application led November 20, 1913. Serial No. 802,075.

` Machines, of which the followingis a specification.

This invention relates to stapling machines, and my object is to produce a stapling machine by which staples can be arranged in position for driving without being touched by hand after they are placed in the machine.

A further object is to produce a machine oi this character having a lever-actuated mechanisnrfor disposing the staples suc-l cessively in operative position, together with means for insuring thefeeding of one sta ple,at a time and retaining the rest of the staples in proper position in the magazine.

With thesegeneral objects in view and others as hereinafter appear, the invention consists 'in' certain novel and peculiar features of construction and organization as hereinafter described and claimed; and in order that it may be fully understood reference is to be had tothe accompanying drawings, in which- Figure 1, is a side view of a stapling machine embodying my invention. Fig. 2, is an inverted plan view of the same. F ig. 3, is a. horizontal section on the line IIL-Hl of Fig. 1. Fig. 4, is a section on line lV-IV of Fig. 2. Fig. 5, is a fragmentary side Aview showing the shifting shield elevated in full lines and in dotted lines swung to inoperative position to permit the machine to be charged with staples. Fig. 6, is a perspective-of the staple cut-ofi member.

ln the said drawings, 1 indicates a magazine of U-shape in cross section, made from sheet metal. At one end the metal is bent to form a handle 2. At the opposite end it is pointed by preference,'and is split centrally from the point for a suitable distance, the sides of the split portion being bowed outwardly at 3 to form a substantially cylindrical chamber 4 in communication with the magazine. Rearward of the cylindrical chamber 4, the curved portion of the magazine is cut away to provide an opening and forward of said chamber the ends oi the machine fit flatly together and are so secured in rigid relation by screws or rivets G.

`7 indicates a cylindrical staple-driving pin fitting in chamber 4 and capable of sliding longitudinally or of turning in said chamber, and at its outer end the pin is pro-vided with an outwardly projecting flange 8.

.9 is a helical spring fitting around the pin 7, and interposed between the bowed portion 3 of the magazine and the flange or head 8 of the pin to normally hold the latter retracted, as shown :most clearly in Fig. 4. yThe lower portion of the pin is toothed as at 10 to constitute a cog segment and in its normally rear side it is provided with a longitudinally extending recess 11 and a socket 12, in the base and near the lower end of the recess. Pivoted in said recess is a catch 13, provided in its rear edge with a notch forming an abrupt down-v wardly-disposed shoulder 14 and a rounded upwardly disposed shoulder 14n. It is also provided with a projection 15 for receiving one end of a coil spring 16' mounted within said socket and tending to hold the rear edge of the catch flush with the outer face of the in. One side wall of the magazine, preferably the right-hand wall is provided with a Alongitudinal slot 17, which extends through vthe corresponding bowed portion 3, and in line with and forward voit' said slot a headed guide pin 18 projects from the front portion of the' machine. Y

l19 is a reciprocatory bar arranged at the right hand side of the magazine and near its front end extending through the slot 17 and provided in its inner edge with rack teeth 20, engaging the teeth 10 of the cog segment formed on the pin 7. At the front end of said series of rack teeth 2O the reciprocatory bar bends inward toward the front end of the magazine wall and is provided with a longitudinal slot 21, engaging the headed guide pin 18. At its rear end the bar 19 is pivoted at 22 to a bell crank lever 23, the upper arm 24 of the lever being widened so as to constitute a latch which can be conveniently depressed by the thumb of the hand grasping the handle. Attached to said thumb latch at-one end and at its opposite end to the magazine wall is a retractile spring 25 for holding the reciprocatory bar at'its forward limit of movement as shown in Figs. 1 and 3, the rack teeth of said bar at such time holding the pin with its recess 11 disposed rearwardly or toward the handle as shown.

26 is a stringer bar for the staples, the same being Secured rigidly at its rear end in the handle and terminating at its front end adjacent to the pin 7, and for the entire length of the magazine chamber Said Stringer bar is spaced from the walls of the chalu-` ber in order to accommodate the legs of the staples. The lower edge of the bar 26 is provided with forwardly disposed rack teeth 27.

28 is an inverted- U shaped follower fitting slidingly on the Stringer bar, and pivoted between the arms of the follower is a catch 29 for successive engagement with the teeth of the Stringer bar, Said catch being held normally in engagement with the teeth of the Stringer bar bya Spring 30 secured to said catch at one end and at its opposite end bearing against a pin 31. At its rear end the catch is provided with a. thumb piece 32 so that by applying rearward pressure therein, the catch can be disengaged from the Stringer bar and slid longitudinally thereon, the catch rengaging the Stringer bar under the action of the spring 30, the instant Said thumb piece 32'is released.

33 is a shifting Shield for normally closing the feed opening 5, and at one Side the shield is provided with a dependingI slotted arm 35 t'o lit snugly against theZ corresponding side wall of the magazine. Engaging the slot 86 of said arm is a headed pin 37 projecting from said side wall of vthe magazine, a coiled spring 38 being mounted upon said pin and bearing at its opposite ends against the head of the same and the slotted arm to hold the shield yieldingly in either open or closed position, Secured to one of the side walls of the magazine by screws 42 is a bracket member 43, one end of which is folded to form a lguideway 44' for slidingly receiving the` stem 45 of a staple cutoit member 46. rThis member 46 is adapted to be reciprocated vertically through the feed opening 5 at the front end of the bar 26, in order to bring a staple separating lug 47 in between the front end of Said bar and the driving pin 7 and thereby retain upon said bar all of the staples 39 except the one being driven. The member 46 is operated by means of a plate 48 carried by the bar 19 alongside the guideway 44 and provided with a pair of inclined cam edges "49 for engagement with the shoulders 50 formed on the stem 45 of the member 46, the arrangement being such that in the forward position of the bar 19 the upper edge 49 of the plate 48 acts to maintain the member 46l elevated. From this construction it will be seen that on reciprocation of the bar 19 the plate 48'will be moved to cause its edges 49 alternately to raise and lower the cut-ott member 46, thereby permitting one staple at a time to be fed and retaining the. remaining staples on the Stringer bar. Assuming that the Shield is open as Shown in Fig. 5, the operator can insert the staples 39 into the magazine through said opening until they rest astride the Stringer bar. If the machine is held Slightly tilted, the'staples will successively slide rearward upon the bar, the first one inserted coming to rest against the follower, the second one againstforward to cause the foremost staple to bef advanced beyond the front end of the Stringer bar into the recess 11 ofthe pin, the bridge or head end of the staple assuming a position between thek Shoulders of the catch 13. The operator then applies pressure upon the thumb latch 24 to overcome the resist- 1 ance of spring 25 and impart rearward l movement to bar 19, this movement through t-he engagement of the teeth 20 of said bar with the cog Segment 10, imparting onefourth of a revolution to the pin 7, the said staple being carried around within chamber 4 with Said pin and latch. The same movement of the arm 19 operates the plate 48 to lower the member 46 to dispose its lug 47 in front of the remaining staples,`the1'eby retaining the latter in proper 'position on the Stringer bar. The machine is then placed against the object into which the staple is to be driven and over a. wire extending across the faceof such object, or the machine will be arranged at right angles tol said wire so that the latter may extend through the oppositely disposed notches 41 formed in the lower edges of the outwardly bowed portions 3. With a hammer held in the other hand the pin is thenv struck sharply to cause it to overcome the resistance of spring 9, and through shoulder 14 lof the catch drive the staple over the wire into the post or other object referred to,.the rexpansion of the spring 9 causing the ypin to withdraw with suiicient force to overcome the-resistance of spring 16 to effect inward movement ofthe lower end of the pivoted catch 13 and the consequent disengagement of the same from the staple.. As this occurs, the pressure on the thumb latch 24 is removed to permit the spring 25 to readvance bar 19 and effect the backward rotation of the pin and the elevation of member 46 to their original positions. The machine is then tilted sumciently to permit the staples and follower to move forwardl by gravity in the magazine to dispose another staple withinthe recess of the pin, and then the operations in the order traced may be repeated to place and drive another staple.

memes From the above description it will be ap` parent that I have produced a stapling machine possessing the features of advantage enumerated as desirable in the statement of the objects of the invention, and I wish it to.

be understood that while I have illustrated aud described the preferred embodiment of the invention, I do not desire to be restricted lo the exact details of construction shown and described as obvious modifications will suggest themselves to one skilled in the art.

I claim l. A stapling machine, having amagazine, a cylindrical chamber at the front end of and communicating at its rear side with the 1nagazine, a pin fitting in said chamber an-d movable endwise therein and provided at its rear side with a recess, a spring actuated catch in the said recess and movable with and independently of the pin and provided at its rear edge with an .upwardly disposed shoulder, and means to advance a staple from the magazine into the said `recess and onto said shoulder.

Q. A stapling machine having a magazine, a cylindrical chamber at the front end ofand communicating at its rea-r side with the magazine, a pin fitting in said chamber and movable eudwise therein and provided at its rear Iside with a recess, a spring actuated catch in the said recess and movable with and independently of the pin and provided at its rear (alge with an upwardly disposed shoulder, means to advance a staple from the magazine into the said recess and onto said shoulder, and means to turn the pin to face its recess and the staple-carrying catch laterally.

'3. A stapling machine having a magazine, a cylindrical chamber at the front end of and communicating at its rear side with `the magazine, a pin fitting in said chamber and movable endwise therein and provided at its rear side withv a recess, a spring-actuated catch in the recess and movable with and independently of the pin and provided at its rear edge with an upwardly disposed shoulder, means to advance a staple from the magazine into said recess and into said shoulder, means to turn the pin te face its recess and the staple-carrying catch laterally, an d means to retract the pin and disengage the catch from said staple after the pin has been 'forced endwise in the said chamber to cause the catch to drive said staple.

1l. A stapling machine having a magazine, a cylindrical chamber at the front end of and eomu'nmicating at its rear side with the magazine, a pin litting in said( chamber and movable cndwise therein and provided at its rear side with a recess, a spring-actuated catch in the said recess and movable with and independently of the pin and provided at its rear edge with an upwardly disposed shoulder, means to advance a staple from the magazine into the said recess and 'onto said shoulder, means to turn the pin to'face its recess and the staple-carrying catch laterally, means to retract the pin and disengage the catch from said staple after the pin has been forced endwise in the said chamber t0 cause the catch to drive said staple, and means to return the pinfturning means to its original position to dispose said pin and catch in position to receive another staple.

5. A stapling machine having a magazine, a cylindrical chamber at the front end of and communicating at its rear side with the magazine, a pin fitting in said chamber and movable endwise therein and provided at its rear side with a recess, a spring-actuated catch in the said recess and movable with and independently of the pin and provided at its rear side with an upwardly disposed shoulder, means to advance a staple from the magazine into said recess and onto said shoulder, means to turn the pin to face its recess and the staple-carrying catch laterally, and a spring to retract the pin and disengage the catch from said staple after the pin has been forced en'dwise in the said chamber to cause the catch to drive said staple.

6. A stapling machine having a magazine, a cylindrical chamber at the front end of and communicating at its rear side with the magazine, a pin fitting in said chamber and movable endwise therein and provided at its rear side with a recess, a spring-actuated catch in the said recess and movable with and independently of the pin and provided at its rear edge with an upwardly disposed shoulder, means to advance a staple from the magazine into said recess and onto `said shoulder, means to turn the pin to face its recess and the staple carrying catch laterally, and a coiled spring around the pin andbearing against the same and the magazine to retract the pin and disengage the catch from said staple after the pin has been forced endwise in the said chamber to cause the catch to drive said staple.

7. A stapling machine having a magazine, a cylindrical chamber at the front end of and communicating at its rear side with the magazine, a pin fitting in said chamber and movable endwise therein and provided at its rear side ith a recess, a spring-actuated catch in the said recess and movable with and independently ot' the pin and provided at its rear edge with an upwardly disposed shoulder, means to advance a staple from the magazine into the said recess and onto said shoulder, an endwise movable bar geared to the pin to turn the same, and a thumb latch to move the bar endwise.

8. A stapling machine having a magazine, a cylindrical chamber at the front end of and communicating at its rear side with the magazine, a pin fitting in said chamber and movable endwise therein and provided at its rear side with a recess, a spring-actuated catch in the said recess and movable with and independently of the pin and 'provided at its rear edge With an upwardly disposed shoulder, means to advance a staple from the magazine into the said recess and onto said shoulder, an endvvise movable bar geared to the pin to turn the same, a thumb latch to move the bar endWise, and a retrac vtile spring to effect opposite or return end- Wise movement of said bar.

9. A. stapling machine having a magazine provided with a feed openingat its front end and a cylindrical chamber extending at right angles to and communicating at its rear side with the magazine at the front end thereof, a Stringer bar for supporting staples astride and side by side in the magazine and underlying the feed opening and terminating at the rear side of said chamber, a pin fitting in said chamber and susceptible of turning and endwise movement therein and provided with a recess in its rear side to receive a staple from the Stringer bar, a catch Within said recess, provided with an upwardly-disposed cam shoulder to underlie and a down- Wardly disposed shoulder to overlie the head or bridge end of the staple received by said recess, means to shift a staple from the end of the stringer bar into said recess, a spring to hold the catch in position to receive the head end of said staple, means to rotate the pin, and a shifting shieldto cover or expose the feed opening.

10. A stapling machine having a magazine, a cylindrical chamber at the'front end Lion-ese the magazine, a, pin fitting in said chamber and movable endvvise therein and provided at its rear side With a recess, a spr1ng-actuated catch in the said recess and movable With and independently of the pin and provided at its rear edge With an upwardly disposed shoulder, means to advance a staple from the magazine into the said recess and onto said shoulder, and cut-0H means for separating said staple from the remaining staples and retaining the latter in said magazine.

l1. A stapling machine having a magazine, a cylindrical chamber at the front end ofy and communicating at its rear side with the magazine, av pin tting in said chamber and movable endvvise therein and provided at its rear side with a recess, a spring-actuated catch in said recess and movable with and independently of the pin and provided at its rear edge with an upwardly disposed shoulder, means to advance a staple from the magazine into the said recess and onto said shoulder, means to Jturn the pin to face its recess and the staple-carrying catch laterally,

and cut-ofi' means operated by said turning means and acting to separate said staple from the remaining staples and retaining the latter in said magazine.

1n testimony whereof, I aix my signature, in the presence of two Witnesses. HERSCHEL RAGSDALE. `Witnesses:

H'. M. DoNELsoN, CeNsTANoE J. WILLsoN.

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