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Sept 5, 1950 E. 1.. AX ETAL ’ 2,521,321 REEL MANDREL BUSHING LATCH FOR BARBED WIRE MACHINES Filed April 8, 1949, 2 Sheets-Sheet 1 H111. xx EH P /6 Sept‘ 5, 1950 E. L. AX ET AL 2,521,321 REEL MANDREL BUSHING LATCHYFOR BARBED WIRE MACHINES Filed April 8, 1949 . _ 2 Sheets-Sheet 2 u Fuas ,ih ll. / all . . N ' I ‘ & F-é' 1. .\\l ‘7% r;..:F._. Fl! ! Ll ’ [a ?r / $1 ii 24m. 5 __ l__ J6 J/ . ' F'B'A" LL56’ ML. x ' ' i _ v ‘ v ?\ if 72 i6’ 12 1 ' L? I vi I, L | ‘ g '" , '__-'-J ‘ Mimi-E1602": EEKK L. Q36‘ and a 52,521,321 Patented Sept. 5, 1950 ’'UNITED STATES PATENT OFFICE REEL MANDREL BUSHING LATCH FOR BABBED WIRE MACHINES 7' Erick L.’ Ax and James A. Jackson, Pittsburgh, Pa. ' Application April 8, 1949, Serial No. 86,237 " 5 Claims. (01. 30s_24) 2 1 This invention relates to a latch and more particularly to a latch for holding a wire reel mandrel in the ?yer of a barbed wire machine while barbed wire is being spooled thereon. pulley drive (not shown). Reel unit 4 is made to revolve within frame 2 by means of a bevel gear I0, ?xed to a ?xedly mounted revolving reel head l2, which meshes with bevel gear I4 ?xed to a drive shaft l6. Shaft I6 is driven through suitable gearing by shaft 8. The reel carrying unit 4 is made up of the ?xed revolving The take-up or spooling mechanism of a barbed wire machine serves two purposes; it not only winds the barbed wire onto a spool, but it also imparts a twist to the two wires making up the barbed wire strand as they are wound upon the removable mandrel 20 which supports the wire receiving spool. reel upon which the. barbed wire is spooled. . The spooling and twisting head i2, an axially retractable head if! and a chine consists essentially of a rotary ?yer frame which houses a revolving reel-carrying unit and A latch plate 22 is pivotallymounted 0n the outer rail surface of the ?yer casting 2. Retract able reel head l8 has rigidly a?ixed thereto a a ~ traversing. guide sheave. shaft portion 24 which is rotatively supported mechanism of a conventional barbed wire ma The reel-carrying unit is made up of a ?xed revolving head mounted 15 within ?yer casting 2 by means of a bushing 26. Bushing 26 has a sliding ?t within ?yer casting by means of a short Shaft projecting therefrom 2. A shoulder segment 58 is formed by providing to the inner side rail of the flyer frame and an the outer end of bushing 26 with a reduced diam axially retractable head removably mounted on eter portion 28. Reduced portion 28 projects the opposite rail of the flyer frame. A mandrel, for supporting the wire reel upon which the 20 beyond the ?yer frame rail when the retractable reel head I8 is in normal closed position. A pull barbedwire is spooled, is mounted between the out handle 30 is provided on the outer extremity two heads with its ends resting in slots provided of bushing 26. A circumferential groove 32 is in the respective heads. provided in bushing 26 at a point approximately In order to remove a loaded reel of barbed wire from the reel-carrying unit, it is necessary 25 midway between its ends. Bushing 26 is held in position on shaft 24 by means vof a washer 34 to move the’axially retractable head away from and a cap screw 36. Latch plate 22 is pivotally the end of the mandrel thus allowing the man secured to ?yer casting 2 by means of a cap screw drel with its loaded reel of barbed wire to fall 38. Latch plate 22 is drilled out at point 40 to to the floor below the machine; ' receive a lock bolt 42 and a compression spring An object of our invention is to provide alatch which will hold the retractable head of the reel 30 44 which ?ts over the smaller diameter portion carrying unit of a rotary ?yer frame securely in 46 of bolt 42. Lock bolt 42 is threaded as at 48 position while barbed'wire is being reeled thereon on one end to enable the a?ixing thereto of a and which permits the head to be removed with handle 50 after ‘bolt 42 and compression spring ease so that the reeled barbed wire may be 44 havebeen inserted within'hole 40.- Although we have :shown bolt 42 as being contained within speedily unloaded ’This and other objects will be more apparent latch plate 22 in hole 40, it will be noted that after referring to the following speci?cation and attached drawings,‘ in which: the bolt may be mounted on the surface of the latch’ plate if desired.‘ The latch '22 is slotted out at points 52 and 54 for the reception of the Figure 1 is a plan view showing the invention installed on the rotary ?yer frame of a barbed 40 reduced end portion 28 of bushing 25 within slot wire machine; Figure 2 is an enlarged detail plan view partly in section; 52 and a projection, which we have shown as a cap screw 56, within slot 54 when head [8 is in the closed position as indicated by the solid lines in Figure 3 is a front elevational view; and Figures 1 and 2. The cap screw 56 serves as a Figure 4 is a sectional view taken on the line 45 locking post inasmuch as lock bolt 42 holds the IV-IV of Figure 3. latch 22 in the closed position when released Referring more speci?cally to the drawings, and allowed to slip into position behind cap screw reference numeral, 2 indicates a barbed wire ma 5'6 and across slot 54. When the latch plate 22 chine rotary ?yer frame casting, housing a re volving reel-carrying unit 4, and a traversing 50 is in locked position slot 52 receives the reduced outer end of bushing 26 thus allowing the inner guide sheave 6. The ?yer frame 2 is supported at surface of the latch plate to bear against shoulder one end by a hollow trunnion (not shown) and segment 28 to hold bushing 26 in closed position at its opposite end by a drive shaft 8. Drive and thereby hold retractable head IS in closed shaft 8 is rigidly ?xed to frame '2 and imparts rotary motion to the frame by a suitable belt and 55 position. 2,521,321 4 In operation, to move reel head l8 to the open position, as shown in dotted lines in Figures 2 and 4, it is only necessary to move locking bolt 42 to the left by means ofhandle 5B and thus allow the pivotally mounted latch plate 22 to swing downwardly about the cap screw 38. The removal of latch plate 22 frees bushing 26 so that the operator can then withdraw it outwardly by means of handle 30: and thus withdraw head 18 from the mandrel 20 carrying the loaded barbed wire reel. When the latch plate 22 is swung to the open or downwardly projecting position, and bushing 26 is withdrawn to open position by means of handle 38, an arm segment 60, which is an integral part of the pivoted end of latch plate 22, will drop into- the peripheral 3. The improvement as de?ned by claim 1 characterized by said locking means compris ing a spring loaded bolt slidingly mounted on said latch plate, said spring loaded bolt being adapted to engage said projection when the latch plate is in closed position, and a handle carried by said bolt for retracting the same. 4. The improvement as de?ned in claim 1 characterized by said bushing having a circum ferential groove around the surface thereof in termediate its ends, a handle projecting from said bushing for moving the same inwardly and outwardly from, said hole, and said latch plate having a locking arm projecting upwardly from the pivoted end thereof, said locking arm coop erating with the circumferential groove in said groove 32 of bushing 26 to lock itin open posi bushing to lock the bushing in open position when the latch plate is swung into open posi tion and thus hold reel head I8 in the open or retracted position until an empty mandrel and tion. 5. Mechanism for locking the reel-supporting wire reel are positioned’ between the reel heads. 20 bushing- reciprocable'in a hole through the side After the mandrel and empty reel. have been positioned within the. flyer frame, reel head 18 is rail of a rotary‘ ?yer frame, said mechanism com-. prising a projection onv the outer surface of said‘ locked in the closed: position by moving latch ?yer frame rail adjacent said bushing, a, re,-v plate 22 upwardly for clockwise about cap, screw duced. outer end on said bashing projecting be 38., by means of a, handle 82.. ‘This movement i yond the fiyer frame forming a shoulder, said frees bushing 28 ‘from the locking arm segment bushing having a circumferential groove around W. and allows it to slide into. closed position and the surface thereof intermediate its ends, a ham thereby slide reel ‘head it into. closed operating dle projecting upwardly from said bushing for position. Thus, when spring ioaded lock bolt 42 snaps into position behind. cap. screw 5'5, the » moving the, same inwardly and outwardly. from said. hole, an elongated latch plate pivotally inner surface of latch plate 22', hearing against mounted on the outer surface of said‘?yer frame theshoulder segment :58. of bushing 26', will posq rail adjacent the bushing, said‘ latch plate being_ itively hold reel- head‘ 18 in ‘the closed posi adapted to be swung into closed‘ position spank tion. While one embodiment. of our invention ‘has ning. said hole, to hold said. bushing therein, said been shown and described, it will be apparent that other adaptations and modi?cations may be made without departing from the scope of the following claims. We claim: 1. Mechanism for Blocking the reel-supporting bushing reciprocabl'e a hole through- the side rail of a rotary ‘flyer frame, said mechanism’ com latch plate having. slots along one edge thereof for receiving said projection and said, reduced: end when the latch plate, is swung into closed position, manually operable locking. means. car: ' prising a projection on the outer surface of said‘ ried by said latch plate, said locking meansicomr prising; a spring loadedbolt slidingly. mounted on saidrlatch plate, said spring loadedv bolt being adapted to engage said projection whenvrthe latch. plate is in closed position, a handle carried. by fiyer frame rail adjacent said bushing, a reduced outer end on saidv bush-ing projecting beyond the said bolt for retracting the same, and a locking‘ frame forming a shoulder, an elongated’ latch plate- pivo'tally mounted on the’ outer sur of. said latch plate, said‘ locking arm cooperating ' face of said flyer frame rail‘ adjacent the bush ing, said latch plate ‘being adapted to be swung into closed position- spanning said hole to hold said bushing therein, said. latch (plate having a slot adapted to receive said reduced end- when said latch plate is in closed position, and manuallyoperable locking carried by said latch plate, said locking means being adapted’ to coop erate with said projection to. locklsa‘id latch plate in closed position. arm- projecting upwardly from, the pivoted end with the circumferential groove in, said bushing to lock the bushing in open position when the latch plate is swung intocpeh position. EB'lCK L. AX. JAMES.v A. JACKSON. sweetness QITED file of this patent: a ,2. The improvement. as, de?ned lay claim 1 characterized. by said‘ latch plate having a sec- 60 Number ond slot adapted to. receive said projection. , The following references are-bfirec'ord in the ‘790,596 FOREIGN PATENTS Country ‘ ' Date France __________ __ Nov. 23; 1935'