US1239496A - Stapling-machine. - Google Patents

Description

I. S. McCHESNEY. STAPLING MACHINE.

' 'APPLICATIOII FII ED FEB. 24, T915 Lwgfi fio Patented Sept. 11,1917.

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. II W ENTOR- Z M E QZ Jaw JHEAMH/V Mama/v51 ATT RNEY I. S. IVIcCHESNEY.

' STAPLING MACHINE. APPLICATION FILED FEB. 24, I915. 1 9 %96 Patentedfiept. 11, 1917.

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A TTORNE Y time erase ramvr JOHN SHERMAN IVIoCI-IESNEY, OF CHICAGO, ILLINOIS, ASSIGNOR TO 3'. S. IVIGCHESNEY & 00., OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

STAPLING-MACHINE.

Specification of Letters Patent.

Patented Sept. 311, 191?.

Application filed February 24., 1915. Serial No. 10,369.

To all whom it may concern:

Be it known that I, JOHN SHERMAN Mo- CHnsNnY, citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have'invented a certain new and useful Improvement in Stapling-Machines, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to stapling machines and is of particular service in effecting the application of staples to brooms in the process of their manufacture, though the invention is not to be limited to this use.

In practising my invention I employ a driver, an anvil, and means for efi'ecting relative movement between the driver and anvil, the driver and anvil being provided with formations for engaging staples or stapling wire therebetween. Each staple or stapling wire portion is bent into holding relation with the work to which it is to be applied when the driver has been moved to the full extent toward the anvil.

My invention also has for its object the provision of a staple wire support, preferably a needle which operates in conjunction with the aforesaid. mechanism and which serves to prepare the way for the staple and to present the staple to the work to which the staple is to be applied. Mechanism is provided whereby the needle is ad vanced approximately to position before the staple enters the work so that the staple cannot have its formation completed before the position in which it is. to be placed with respect to the work to which it is to be applied has been fully determined. The needle also desirably operates in conjunction with the driver and anvil in bringing the staple to its final shape. Where the invention is employed in a broom making machine the anvil is desirably also in the form of a vise jaw movable toward and from a complemental jaw in which latter jaw the needle and driver are reeiprocated. By this arrangement I am enabled to collapse the bundles of broom straw to the approximate shape of the brooms whereafter the staples are passed through the collapsed bundles of straw and are. preferably engaged with bands that surround the brooms to keep these bands from spreading and to maintain the brooms in shape.

I will explain my invention more fully by reference to the accompanying drawings showing the preferred embodiment thereof and in which Figure 1 is a perspective view of the machine made in accordance with the preferred embodimentof the invention; Fig. 2 is a view of the product resulting from the operation of the machine; Fig. 3 is a longitudinal sectional view of the upper part of the machine; Figs. 4 and 5 are longitudinal sectional views, somewhat diagrammatic, of parts of the upper portion of the machine, these two views showing such parts in differing relations; Fig. 6 is a view of the needle which is preferably employed; Fig. 7 is a View of a driver; and Fig. 8 illustrates an endless band which is desirably employed in forming the broom.

. Like parts are indicated by similar char actors of reference throughout the different figures.

The broom forming bundle of straw 1 is passed, shoulder first, through a band 2 which is preferably endless, this band being formed of an iron rod welded at 3, though the form of band which is employed is immaterial to the invention. The machine includes a vise comprising a movable jaw at and a stationary jaw 5 which latter jaw also constitutes the foundation of the machine. Two rods 6 are fixedly attached at their forward ends to the jaw 4, these rods being provided with rack formations 7 which are e11- gaged by the teeth of supplemental gears 8 that are mounted upon a common shaft 9. One of these gears is provided with a handle 10 whereby the shaft 9 may be turned and both segmental gears 8 turned in unison whereby the jaw 4; may be moved back and forth. The broom with the band 2 placed about the same is interposed between the jaws 4:, 5 of the vise, when jaw 4k is moved outwardly, whereafter the shaft 9 is turned clockwise to press the band 2 into firm engagement with the straw of the broom, to shape the broom. One or more of such bands may be employed, though one is sufficient for certain types of brooms.

In order that the material of which the bands 2 are formed may be as light as possible, the shape holding function of the band is supplemented by means of staples ll which are passed transversely through the broom and which desirably have eye forma; tions 11 11 at their ends in which the s des of the i ssociate band are received as indicated most clearly in Fig. 5, the broom st-raw being omitted from this figure as, well, as from Fig. 4: for the sake of clearness. After esire may be integliallyfformedwith the platell.

This pawl; carrier is provided with vertical slots 16, preferably .two in number, in which pawls or driving connections '17: are inter,- mediately, pivoted, the left hand endsof thesejpawls being. the heavier in order that the pawls may normally occupy the 'posie tioins illustrated in Figs; 1 and13. When the rack platelet is moved forwardly the pawls 17 will come into engagement, atitheir lowver ends, each witha notclr 18v provided ina needle 19 (which also acts as a stapling wiresupport), there beingonesuch needle in, association with each,pawl. Each needle has a nosellS)? at its. forwardend whereby the entry of ,this forward portion among ,the straw isfacilitated, The'pawl carrienlli is provided with] channel ways .on its bottom side which are in sliding fit with the needles. These channelavays maintain the needles in fiXeddines of moveinent andimaintain the notches 18 in the same, planes with the paSXlS l7, illustrated most clearly inFig. 3. The top sides of'the needles.l9iare. ro= vided with longitudinal channel, ways .20 that ,liein the same verticalplanes with the vertical slots2l in the machine foundation. 5. Thestapling wire portions, 11 are preferably initially in the form of partially. made staples as illuS l'ated in Fig. -l and insuch forin 'they are dropped through the slots 91 into the channel ways 20.: of the needles, 1%) that lal employ d toprepare passageways for or to guide staples, the initial. position of the stapleswithinthe channelways QObeing illustrated in Fig 4. Thedeposit ofathe staples within the channels 20. :is effectedbefore the plate 14 is moved.forwardly. After snch deposit has occurred the plate l i is moved forwardly in the manner described whereupon the drivers 22,,whose rear ends are rigidly secured to the. forward portion of the pawl carrier- 15, are pushed forwardly. These drivers have. sliding, fit within the channels- 20 and are cone-aired at their. for; ward ends, asindicated at 22 to receivethe single bightinitigrllyformed in the. staple, as indicated ,in Fig, 4;, these cavitiesQQ taking part in ,forming eyes in the stapleseas V ie se the. rack plate. 414. .is;mo.ved

Q EWQ 'FHM the 19m art er mov s therewith as these two elements are of integral i if it i n nd. he. P VL r e p she the drivers 22 forwardly within the channels 20 whereby the previously deposited staples 11 are moved forwardly. The unbent, forward, ends of the staples are ultimately brought into engagement with the eyes embracing oppositesides of theband Q to prevent.theseband sides: from spreading apart, whereby suchband maybe made of lighter materialthan wouldotherw-ise be requiredi to enable themto, maintain the broom in shape. Before-thedriversQQ' op-. crate, the needles 19 are desirably nearl-y or completely projected to their; foremost; positions, as illustrated lIL-Fl Qf-So 4 and 15 inwhich they bridge the gap between the vise aws; and 15-. v hen-the needles have thus bridged the spacing between the vise-j aw-s-tlie pawls 17 are; disengaged i from the 1 notches. 18 by having. their upper ends come in contact with the-pawl releaser. 24:, than stationary.

Although ,the pawl ireleaserQl is stationary when .it functions it; is maintained" in fixed relationwitlr the jaw eiby beingsecured to the..rods 6as--indieated inaFig 1', whereby the? pawls 17: are .sureto bereleased when theneedles 19 lh'avebeen brought to" their foremost position to bridgel the gap between the jaws 1- and 5 :whateverthewidtlrof=this gapmaybe Thus thejaw t may be -moved toward the jaw v5 varying distances to suit the varying. .masses -of .broom :straw 6 inter posedv therebetweenc without changing the position. of thenneedles w-ith a'espect to ith'e j awlel. when. the needles are-in the foremost positions. y I

After. the staples have had the eyes 11 11 formed therein inthe manner described the .-lever.,12 -t11l'Il6Gl :lI1-1- clockwise directiontomove. the rack plate M'tothe-right, tqgetheimwith the paw-l :carrier -lifi hen the pawl carrier 15 gis -mov-eda suflioie'nt dis} tance .to the right its rear face engages the shoulder. 25; :on, the rear ends of the needles 19 .to. withdraw these rneedles to the positibnlgenerally...indicated by dotted ':lines--in operate tombringvthe =-sides of-=the band 2 into. .the plane of the top of ;theneedles whereby. the staples .11 are so positionedith'at the, 1 eyes .are sureto 1 be formed about the sides of the-bands.

WVhile I have herein shown and particularly described the preferred embodiment of my invention I do not wish to be limited to the precise details of construction shown as changes may readily be made without departing from the spirit of my invention, but having thus described my invention I claim as new and desire to secure by Let ters Patent the following 1. A stapling machine including ananvil; a needle for guiding staples; a driver for a moving staples along the needle; mechanism for moving the driver and the needle toward the anvil; a driving connection between said mechanism and the needle whereby the driver and the needle are initially moved toward the anvil together; and means operating upon said driving connection upon a predetermined advance of the needle and driver for uncoupling said mechanism and the needle to thereafter permit the driver to move alone toward the anvil.

2. A stapling machine including an an vil; a needle for guiding staples; a driver for moving staples along the needle; mechanism for moving the driver and the needle toward the anvil; a driving connection be tween said mechanism and the needle whereby the driver and the needle are initially moved toward the anvil together; means operating upon said driving connection upon a predetermined advance of the needle and driver for uncoupling said mechanism and the needle to thereafter permit the driver to move alone toward the anvil; chucks for holding work in position to be stapled; and mechanism for causing approach of one chuck toward the other prior to movement of the needle and driver toward the anvil.

In witness whereof, I hereunto subscribe my name this sixteenth day of February A. D., 1915.

JOHN SHERMAN MCCHESNEY.

Witnesses:

G. L. CRAGG, ETTA L. WHITE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. 0.

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