US958201A - Wire-feeding mechanism for stapling-machines. - Google Patents

Description

E. WEBER. WIRE FBEDING MEGHANISM PQR STAPLING MACHINES. APPLICATION FILBD`-$ULY 7, 1908.

Palisfntd May 17, 1910. l

'JSHEETB-SHEET 1.

mmulllullil H. WEBER. WIRE PEEDING MEGHANISM FOR STAPLING IILACHNES.

vAPPIJLOMum mmm 511117,' 190s.

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2 BREVES-SHEET 2.

' Mgg@ aan sraras narrativa ernten.

HENRY WEBER, F CHICAGQ, ILLINOIS, SSIGN'OR 'I0 LAIHAILI MACHINERY' UMPANY,

01E' CHICAGO, ILLINOIS, A CORPORAIIQN OF ILLINIS.

WIRE-FEEDING 'MECHANISM FOR, STAPIJINC'l-MICHINES.

l Specification ci Lettera 'Eatent appueauonmed any?, isos. serial' no. aaaa'ea lPatented May 11'?, 1914]).

To all whom it may concern.'

Be it known that I, HENRY WEBER, a citizen of the United States, residing at Chicago, in the county of Cook and State f..

Illinois, have invented certain new and useful Im rovements in Wire-Feeding Mechanism for Stapling-Machines, of .Which the following is a specification.

This invention relates to improvements in wire feeding mechanism for stapling machines, and more particularly to that type of machines in which the wire is intermittently fed into the machine, Aand cut off into suitable lengths, formed into staples, and

driven through the material which it is de-V sired to stitch, and clenched on the other proved device of this character which will e simple and durable in construction and eective and efficient in operation.

To the attainment of these ends and the accomplishment of other new and useful .objects as will appear, the invention consists in the features of novelty in the construction, combination and arrangement of the several parts hereinafter more fully described and claimed and. shown in the accompanying drawings illustrating the embodiment of the invention, and in which- Figure 1 is a detail front elevation of a I portion of a stapling' mechanism with parts removed, and showing an improved feeding mechanism applied thereto, constructed in accordance with the principles of this invention. Fig. 2 is a detall perspective view of the support on the feed lever over which the wire .passes.- Fig. 3 is an enlargeddetail sectional view on line 33 of Fig. 4. Fig. 4: is a detail elevation with parts removed of a portion of the feed lever showing the supports for the gripping members. Fig. 5 is a detail sectional view on line 5--5 of Fig. 1. Fig. 6 is a front elevation similar to Fig. 1 of a modified form of the This pivot 22 may invention. Fig. 7 is an enlarged detail sectional view' on line 7-7 of Fig. 6, with parts of the mechanism removed. enlarged detail perspective view of the ad- ]ustable stop for limiting the movement of the feed lever in one direction. l

Referring more particularly to the drawings and in the exempliication of thev invention shown in Fig.,1 of the drawings, the numeral 10 designates a portion of a suitable support for the mechanism, 1l designates generally a suitable forming and driving mechanism, and 12 an operating Fig. 8 1s an cam for a staple forming mechanism which is rotatably mounted upon the support 10 and -is adapted to be rotated from any suitable source. Allof the above parts may be of any ordinary construction and form no part of the present invention.

A feed lever 18 is provided with a tubular portion 14C intermediate its ends as show n more clearly in Fig. 5 of the drawings. rllhi's llever is, pivotally mounted uponv the support/10 by means of a suitable axle 15 p assing through the tubular portion ,1t and into the support. Surrounding the axle 15 1s a suitable coiled spring 16, one end of which is secured to the axle 15 Iand the other end is secured to a portion of the lever 13. rlhe lower end-of the lever is preferably enlarged,

as at 17, and secured to the enlargement 17 is a support 18 over which the wire is adapted to pass. The enlargement 17 of the lever 13 is provided with a plurality of recesses 19 openin Athrough one face of the enlargement, pre 'erably the front face. Any num.- ber of these recesses may be provided, according to the number of gripping members desired to be used, and in the present exemplification of the invention the enlargement is provided with two recesses to accommodate two gri ping members. v

Eccentrical y mounted within each of the recesses 19 is a disk 20 which is of a diameter somewhat less than the diameter of the recesses 19. These disks are provided with apertures 21 passing therethrough in a d1- rection transversely of the pivot' 22 thereof..

be formed in any suitable manner, but 1s preferably in the form of a screw or bolt passing transversely through the disk 20 and into the lever 13 by means of which the disk may be removablyand pivotally held in position. The disks 20 are of va thickness substantially eyond the peripher of` which rests upon a suitable shoulder 25.

formed in the aperture 21, and the shoulder 26 formed on the plunger y23. ripping member 27 havin a milled peri ery 28 is secured to the isk 20 in any esired or suitable manner, preferably by means of a fastening bolt 28,'and upon which bolt the gripping member 27 is ada ted to be rotated. rlhe pivot b olt 28 o the gr pcping member 27 is `preferably located beyon the diametric center of the recess 19 and the member 27 is of a diameter such that a portion of the peri hery thereof will normally stand adjacent t e sup ort 18, and this support 18 is provided with upwardly projecting lips 29 which' are adapted to lstand adjacent the outer face of the gripping member 27, as shown more clearly in Fig. 3 of the drawing. With this improved construction and manner of mounting the gri ping member, it will be ap arent that the atter may be rotated about its axis 28 and may be also bodily adjusted to move the supporting disk 20 about its pivot 22 and thereby permit the gripping member to yield when the feed lever 13 is moved in one direction to obtain a fresh ip u on the wire 30. The sup ort 18 is o? a wi th substantially equal to t e width of the periphery of the gripping member 27, so asto insure a positive gripping of the wire as the latter passes over the support. The two gripping members 27 which are mounted upon the enlargement 17 of the feed lever 13 are arranged to operate in unison, that is, to operate to grip the wire when the feed lever 13 is moved toward the forming mechanism 11 to advance the wire, or from the position shown in Fig. l of thedrawings, and to yield to permit the' gripping members to slide over the wire when the ever is moved back into the position shown in Fig. 1. A similar gripping member 31 is rotatably supported by means of the pivot bolt 32 on the support 10, and a coperating wire support 33 is arranged adjacent the gripping member 31. This gripping member 31, together with its supporting disk 20, is similar in construction to the gripping members 27 and their sup ortin disks, with the exception that t e gripping member 31 is fixed with relation to the gripping members 27 and is arranged to operate in the opposite direction from the gripping members 27 that is, when the wire 30 passes over the" support33 and below the gripping member 31 during the forward movement of the feed lever 132 the gripping member 31 will yield to permit the wire to be fed to the machine,

etaaoi whereas the grip ing members 27 will be clamped against t e wire to cause it to advance. When thefeed lever 13sisimoved in the opposite direction to obtain anew gri u on t e wire,'the gripping member 31 wi c amp the wire u on the support 33 to prevent a retrogra e movement of thel wire while the gripping members 27 will yield to permit the feed lever 13 to move the\ gripping lmembers backwardly upon the wire to obtain a new grip. rllhis operation will be continued as long as the feed lever 13 i's reciprocated about its ivot bolt 15.

Any suitable means may e provided for reciprocating the lever 13, such, for instance, as an anti-friction roller 34 which is journaled to the free end of the lever andwhich has engagement with a cam surface 35 on the cam 12. rJlhe yielding member 16 will tend to hold the anti-friction roller 34 in engagement with the cam surface 35, and as the latter is rotated, the lever will be moved against the tension of the yielding melignber 16g.) advnce thedwire.

y rovi in t e space grippin members 2 upon the feed lever, it willgbe a parent that a substantial urchase will obtained on the wire to a vance the same through the guide tube 36 of thev forming mechanism, and these spaced grippin members 27 will also serve to strai hten t e wire and to remove the bend which is created therein by means of the ,wire being wound upon a supply spool. 'If desired, the support 10 may be rovided with a protecting shield 37 in the orm of a, laterally projecting ange which extends below the enlarged end 17 of the feed lever 13. In the exemplication shown in Figs. 1 to 4, the support 18 is shown as being struck on an arc described from the pivot of the lever 13, and the shield 27 may be also arranged on an arc of a larger radius, struck from the same center to permit the free oscillation of the enlarged end 17 of the lever.

In the exemplification of the invention shownin Fig. 6 of the drawings, the support 18 is straight, and arranged adjacent the fixed gripping member 31a is' a wire straightener 38 which preferably comprises a bo y portion having an odset portion 39 and a deiiec'ted extremity 4 1 provided with a bearing 42` through which the wire 30 is adapted to pass as it is advanced by: the feed lever. The, member 38 is adapted to rest 4against the edge of a support 10 adjacent the gripping member 31, so that the deflected extremity 41 will be spaced from the support 33a, and the free extremity of the member is provided with a, slot 43 through which afastening device 44 is adapted to pass and which engages the su respect to thesupporting surface of the supyto remove the kinks or bends `wheel 50 is eraser ort 38* to form an Aadditional bearing surace over which .the wire is adapted to pass in the wire. With this exem lifcation of the invention, it will be seen t at when the feed lever 13 is in lthe position shown in Fi 6 of the drawings, the u per, surface of t e supports 33 and 18 wi form a straight line to receive the end of the wire and when the lever 13 is advanced the gripping members 27 will clamp the Wire upon t will advance the same to the staplin mechanism 11, so that the extremity of t e wire will be directed in av proper position into the stapling mechanism. v

In the exempliiication of the invention shown in Figs. 6, 7 and 8, there is provided suitable means for regulatin the movement of the feed lever 13in one irection, which means preferabl comprise a member 45 adjustably mounte upon the su ort 10, which latter is provided with a suitab e slot through which .a portion 46 of the member projects, and the lever of the support 10. An adjusting screw or bolt 47 is connected by one extremity to the portion 46 of the member 45, and the free extremity thereof rojects through ai suitable bearing 48 on the rear of the support 10, and is provided with screw threads 49. An operating handle or provided with a shank 51 having internal screw threads (not shown) and into which the threaded extremity of the bolt 47 is adapted to project so that the threads will have engagement with the threads in the tubular shank 51 of the operating wheel 50 whereby the rotation of the wheel 50 will cause the member 45 to be adjusted with respect to the forming mechanism 11, and this handle 50 may be held in a xed position in any desired or suitable manner not necessa to illustrate. rlihe member 45 on the face of the support adjacent the feed lever 13 is provided with a projection or lug 52 which stands within the path of movement in one direction of a lug or extension 53 on the feed lever 13, so that when the anti-friction roller 34 on the free end'of the feed lever 13 is forced against the cam face 35 of the cam 12 by means of the the lug 53 on the lever will engage the projection or lug 52 on the niemberv45. lt will therefore be apparent that when the wheel 50 is rotated to adjust the member 45, the lug or projection 52 will also be adjusted with respect to the staple forming mechanism, thereby varying the position of the lug so that the latter will be engaged at dierent times by the lug 53 on the lever 13 according to the position of the lug.

i With this improved construction of feeding mechanism it will be apparent that all ofthe operating or controlling parts lof the gripping'inembers will be incased and fully protected, the gripping members serving as e straight surface and .the

elastic member 16,

closures for the recessesin which the con-` parts for the gri ping members cannot be adjusted or interfered with Without removing the gripping members, and even though an' inexperienced operator may adjust the bolt or supporting pivot 28, 32 of the respective grippin members, it will be apparent that such a justment will not dislocate or damage the controlling parts.

When the gripping members are moved to ermit the wire 30 to pass, the supporting isk 20 will be moved about its pivot 22 so that the free extremity of the lunger 23 will be forced against the wall ci) the recess in which the respective disk is located, and a further movement of the gripping member in the same direction will tend to force the plunger within the disk and against the tension of the elastic member 24, so that when the ipping member has been adjusted and ed lever starts to move in the opposite direction, the elastic member 24 will expand to force the disk 20 about its point of pivotal support Ain the o posite direction to .cause the periphery of t e gripping member to forcibly engage the wire and clamp the same upon the support y which coperates with the gripping member.

Anyv desired number of gripping members 27 may be mounted upon the enlarged portion 17 of the feed lever 13, but in the present exemplitication of the invention,- two only of such members are shown, which are arranged in tandem and in the same plane.

1n order that the invention might be fully understood the details of the foregoin embodiment thereof have been thus specifically described, but

What l claim as new is:

1. lin combination in a wire stitching machine, a support over which the wire is adapted to be drawn, a gripper member cooperating with the support for holding the wire against retrograde movement and to permit the wire'to freely pass in one direction, means for drawing the wire over the support, said means including an extended support for the wire, and spaced gripper members arranged in tandem and coperating with the support for holding the wire, said gripper members being adapted to simultaneously grip the wire when the said drawing means is moved in one direction, and to simultaneously release moved in the opposite direction, means for imparting motion to the last said means, and adjustable means for limiting the movement of the said drawing means in one direction.

2. In combination in a wire stitching machine, a wire gripper comprising a member, a wire sup ort on the member and over which the wire is adapted to pass, a supportthe wire when lOO eccentrically mounted on the member, a

gripping member mounted upon l the said eccentric support and adapted to coperate with the wire support, and elastic means for shifting the said eccentric to cause the grippin memberv to grip the `wire when the rst sai member is moved in one direction, andto yield when the member is moved in the opposite direction.

3. In combination in a wire stitching machine, a wire gripper comprising a member,

'a Wire sup ort on thev member and over erating With the said support, said disk portedl by the disk an bein adapted to be shifted by the gripping mem er to cause the member to grip the wire when the first said member is moved in one directionand to yield when the meinber is moved inthe opposite direction, and elastic means supporte by and projecting beyond the periphery of the disk for controlling the movement of the disk in one direction.

4. In combination in a Wire stitching machine, a Wire gripper comprising a member, a wire sup ort on the member and over which the wire is adapted to pass, said mem ber being provided with a recess opening through the face thereof, a disk eccentrically mounted within the recess, a gripping member supported by the said disk and coperating with the said support, said disk bein adapted to be shifted by the` gripping mem er to causev the member to grip the wire when the first said member is moved in one direction and to yield when the mem` ber is moved in the op osite direction, and elastic means supported) beyond the periphery ofthe disk for controlling the movement of the disk in one direction, said gripping member being of a diameter greater than the diameter of the said recess to form a' closure therefor for inclosinIg the said disk.

a Wire Astitching machine, a wire lgripper comprising a mainsupporting member, a wire support on the member and over which the Wire is adapted to pass, said member being provided with an open recess, a disk eccentricallymounted within the recess and being of a smaller diameter than the diameter of the recess, a gripping member supported by the disk and coperating with the wire support, and ielding means supprojecti'ng beyond the periphery thereof, said gripping member being adapted to Agrip the wire when the main supporting member is moved in one ldirection and to release the wire and shift the disk to cause the said yielding means to be forced into engagement with the wall of by and projecting etaaoi the recess to create a tension u on the said yieldin means to move the dis in the opposite irection. t

6. lin combination 1n a wire' stitching machine, a wire gripper comprising a main supporting member, :a wire support on the member and over Whichthe Wire is ada ted to pass', said member being provided Wit an open recess, a disk eccentrically mounted Within the recess and being of a smaller diameter than the diameter of the recess, a gripping member supported by the disk and coperating with the wire support, a member mounted u on the disk for movement' transversely Wit respect to the pivot, thereof, and elastic means disposed between said member and the disk for normally holding the member projected beyond the peri hery of the disk, said gripping member eing adapted to grip the wire when the main support is moved inone direction and to release the wire and shift the disk to force the said member upon the disk against the Wall of the recess and against the tension of the said port, a Wire support thereon, said main sup-r port being provided with an open recess, a disk having a smaller diameter than the diameter of the recess, means for removably and eccentrically mounting the disk Within the recess, yielding means supported by the disk and projecting beyond the periphery thereof, said yielding means being normally held out of engagement with the Wall of the recess, and a gripping member mounted upon the disk and coiperating with the Wire suplport whereby the said gripping member wi grip the wire when moved in one direction and will yield when moved in the opposite direction, the extremity of the said yielding means being adapted to beforced against port being provided with an open recess,.a

disk havin a smaller .diameter than the diameter o the recess, means for removably and eccentrically mounting the disk within the recess, yielding means supported by the disk and projecting beyond the periphery thereof, said yielditr'igmeans being normally held out of engagement with the Wall of the recess, and a gripping member mounted' upon the disk and coperating with the wire sup ort whereby the said gripping member Wil gri the wire when moved in one direction an will yield when moved in the opposite direction, the extremity of the said yielding means bein adapted to be forced against the Wall of t e recess whereby a tension will be created upon said yielding eeaeoi in one direction, said gripping member formin aclosure forthe recessito conceal the sai disk and being adjustable with respect to said disk.

9. In combination in a wire stitching machine, a support over which the wire is adapted to be drawn, a grip er member cooperating with the support or holding the Wire against retrograde movement and to permit the wire to freely ass in one direction, means on one side o the support for `drawing the wire over the support, said means including a support for the wire, a

plurality of gripping members spaced longitudinally from each other and coperating with the support to grip the wire when the said drawing means is moved in one direction and to yield to release the wire when moved in the opposite direction, means for imparting movement to the last said means, an means on the other side of the first said support for deecting the wire at a point adjacent and with respect to the support.

10. In combination in a wire stitching machine, a support over which the wire is adapted to be drawn, a grip er member cooperating With the support or holding the wire against retrograde movement and to permit the wire to freely ass in one direction, means on oneside o the support for drawin the wire over the support, said means including a support for the wire, a plurality of gripping members spaced longitudinally from each other and coperating with the support to grip the wire when the said drawing means is moved in one direction and to yield to release the wire when moved in the opposite direction, means for imparting movement. to the last said means, a member on the other side of the support provided with an aperture through which the wire passes, means for adjustably and pivotally supporting lthe member adjacent the support, and means for securing the member in its adjusted position to deiect the wire at a point adjacent and with respect to the support.

In testimony whereof I have signed my name to this specificatiomin the presence of two subscribing witnesses, on this 27th day of June A. l). 1908.

. HENRY WEBER.

Witnesses:

J. II. JOGHUM, Jr., C. H. SEEM.

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