US2571813A - Hog ringer - Google Patents

Description

C. L. AUSTIN Oct. 16, 1951 HOG RINGER 3 Sheets-Sheer?l l' Filed Aug. 17, 1950 c. L. AUSTIN Oct. 16, 1951 HOG RINGER 5 Sheet's-Sht 2 Filed Aug. 1'?, 195o C. L. AUSTIN oct. 16, 1951 HOG RINGER 3 Sheets--Sheei'I 3 Filed Aug. 17, 1950 CZQv/effcej "Msllv Patented Oct. 16, 1951 UNITED sTATs PATENT OFFICE 10 Claims.

This invention relates to an improved magazene feed hog ringer, and in particular it relates to a ringer which is adapted to insert in a hogs snout Hil1 type rings of any of the three standard sizes. The invention is an improvement on the device shown in my copending application 89,828, filed April 27, 1949,- and issued October 17, i950 as Patent 2,525,759.

The principal object of the invention is to provide a magazine feed hog ringer in which the extent of separation of the jaws to accommodate various size ring blanks is positively and easily controlled by a pin and selective slot arrangement on a cross head in the ringer frame.

A further object is to provide ya combination of magazine and follower in which the magazine provides guide surfaces to retain large and small hog ring blanks against lateral play, and the follower is provided with guide surfaces to retain intermediate size ring blanks against lateral play.

Another object is to provide a positive holdback latch for the follower which has a finger to releasably engage an aperture at the rear of the frame when the follower is retracted to load the magazine.

Still another object is to provide spring means urging said latch into engagement with the aperture in the frame, and so link the spring to the latch that the force urging the latch nger against the frame diminishes progressively as the follower moves forward.

The invention is illustrated in a preferred embodiment in the accompanying drawings, in which:

Fig. 1 is a perspective View of the improved hog ringer in position to insert a ring in a hogs snout; Fig. 2 is a bottom plan view of the ringer with its jaws in open position and the frame and follower plate partially broken away to show the detail of the follower hold back latch; Fig. 3 is Ia side elevation similar to Fig. 2; Fig. 4 is a top plan view of the ringer with its jaws in closed position with a fully formed ring in the jaws; Fig. 5 is a bottom plan view similar to Fig. 4, but with the formed ring removed from the jaws to show the construction of the crimping cams, and with the magazine follower plate removed; Fig. .6 is a plan view of the inner surface of the magazine follower plate; lFig. 7 is ia section taken as indicated along the line -l of Fig. 4; Fig. 8 is a section taken as indicated along the line 8 8 of Fig. 3; Fig. 9 is a section similar to Fig. 8 with the crimping members in intermediate position and a ring therein in snout gripping position; Fig. 10 is a section taken as indicated 2 on the line illy-I0 of Fig. 7; and Fig. 11 is a fragmentary bottom plan View of the ringer with intermediate size rings in the magazine, the side of the magazine and parts of the rings being partly broken away to show the engagement vof the magazine -follower with the ring blanks.

guide member to serve as a guide for small size ring blanks. A follower in the magazine is urged forwardly by a spring, and engages ring blanks in the magazine to hold them forward against stop members carried on the jaws of the cross levers. The follower has guide surfaces at its forward end which engage the rear ring blank of a series in order to prevent side play thereof, and this feature is of particular importance in using intermediate size ring blanks, which are otherwise not restrained against lateral movement.

In the rear of the stop members the cross levers are provided with cooperating cam faces which rst slide a ring blank downwardly and forwardly into snout gripping position and then form the ring as the handles of the cross levers are moved together to close the jaws. A cross head sliding in the frame mayhave its forward travel adjustably limited by means of a pivoted size adjuster arm which selectively engages one of three apertures in the cross head through corresponding slots in the frame member, said slots having their forward ends out of alignment so as to adjustably limit the forward travel of the cross head. The cross head, in turn is linked to the crossl levers so'as to adjustably limit the opening movement of the jaws so that they may accommodate the Vthree sizes of ring blanks. A

spring urges Lthe cross head toward its forward position, thus tending to keep the jaws in thei adjusted open position.

To aid in loading, the magazine follower has a hold back latch which engages with a portion Vof the frame when the follower is fully retracted, .and the magazine follower spring is secured to 4a stud on said latch in such a manner that, as

the magazine follower moves forward the transverse pressure of the hold back latch against the frame diminishes steadily.

Referring to the drawings in greater detail, a frame indicated generally at I2 is formed of a channel member so as to have a back I3, and side walls I4 which have their lower edge portions turned in as seen in Figs. 8 to 10. As best seen in Figs. and 7, a guide member I5 is weld-- ed to the inside of the hollow channel like frame I2 at I5a, and extends to the open forward end thereof. The guide member I5 has a channel like cross-section generally concentric with that of the frame I2 so as to provide a magazine for a series of ring blanks I5. The ring-blanks are of the well-known I-Iill pattern, and are preferably held together by a plastic or lacquer type material for easy loading of the magazine. The ring blanks are normally provided in three standard sizes, large, medium and small-and the frame I 2 and guide member I5 are so pro-` portioned that the frame provides an Outside guide for the large size ring blanks, and the guide member I5 provides an inside guide for the small size ring blanks. The intermediate size blanks are guided by the magazine follower, as will be fully described hereafter. A pair of cross levers I1 and I3 are pivotally mounted on the frame II by means of a rivet I9, the handles and 2i of the cross levers flank the frame and the jaws 22 and 23 thereof extend forwardly across the open end of the magazine. The jaws 22 and' 23 are provided with flanges 24 and 25 which act as stop members for the ring blank I6. Immediately to the rear of the stops 24 and 25 are crimping cams 23 and 21 (as best seen in Figs. 5 and l1) which are positioned to flank the forward ring blank Ita of the series of ring blanks in the magazine. As best seen in Fig. 7, the j aws 22 and 23 slant forwardly and downwardly, and the crimping cams are of such shape as to rst slide the front ring blank I5a downwardly into the snout gripping position of Fig.

v9 and then close the blank to form a ring, as seen in Fig. 10. This action is described in detail in my copending application, to which reference has been made.

Pivoted to the cross levers I1 and I3 at 28' and 29, respectively, are a pair of links and 3| which have their inner ends pivotally securedv to a cross head 32 inside the frame II, by means of a rivet 33 which extends through a guide slot 34 in the back I3 of the frame I2. rPhe cross head 32 is guided in the frame by longitudinal guide slots 35 which slidably engage rivets 33 in the back I3 of the frame I2. Y

A size adjuster arm 31 is pivoted at its forward end on the rivet 33, and is provided with an adjustment pin 33. The rear portion of the adjuster arm 31 is looped to form a handle 39 by which the arm may be lifted and bent at the pivot 33 sc that the size adjuster pin 38 may be selectively inserted in any one of the three slots 49, 4I and 42 in the back I3 of the frame, and engaged with one of three aligned apertures 43 in the cross. head 32. As best seen in Fig. 4, the forward ends of the slots 4D, 4I and 42 are out of alignment with one another, so that the distance which the cross head 32 may travel forward is adjustably limited depending upon the slot through which the size adjuster pin 38 extends. Due to the links 301 and 3l between the cross head and the cross levers, this in turn controls the degree of separation of the jaws 2'2- and 23, and thus accommodates the ringer to handle any one of the three sizes of hog rings. As best seen in Fig. '7, a tension spring 44 extends between a spring lug on the cross head and a spring hook 46 at the rear of the guide 4 member I5, so that the cross head is continuously urged toward its forward position.

As best seen in Figs. 2, 6 and 7 a magazine follower, indicated generally at 41, has upright sides 48 and 49 and is of appropriate dimensions to slide in the slot formed by the side walls I4 of the main frame and the concentric side walls of the guide member I5. The upright sides 48 and 49 of the follower have their forward ends crimped at 5U and 5I to engage the rear ring blank of a series of blanks I6, and as best seen in Figs. 6 and 1l the front of the follower 41 is provided with guide surfaces 52 and 53 which angle outwardly and rearwardly so as to serve as guides for intermediate size ring blanks, and prevent lateral play thereof. rIhe engagement of the guide surfaces 52 and 53 with intermediate size ring blanks is illustrated in Fig. lll The magazine follower 41 is provided with a stop member 54 which abuts against a comple'mentary stop member 55 near the front of the guide member I5 to limit forward travel of the magazine follower.

To facilitate loading of the magazine, the follower 41 is provided with a hold back latch indicated generally at 56,'. The latch takes the form of an arm which is. pivoted adjacent its rear end on a rivet 51. On one side of the latch arm 5S at its forward end is a latch finger 58, and at the rear end of the latch arm 55, and on the opposite side from the linger 58 is a magazine follower spring lug 5,9. A follower spring 33 is tensioned between the lug 59 and the spring hook 45 on the guide member I5. The tension of the magazine follower spring 6l) urges the latch nger 58 through an aperture @I in the side wall 49 of the follower, and when the follower is fully retracted to load the magazine the latch finger 58 engages with a latching aperture S2 in the side I4 of the frame I2, toY retain the follower in its retracted position.

Because ofthe manner in which the follower spring 63 is attached to the latch arm 53, as. the magazine follower travels forward the force urging the latch linger 58 against the side wall I4 of the frame diminishes progressively', so thatA the frictional dragof the latch arm on the side wall I4 becomes a negligible factor when the follower is in position to engage a line of ring blanks I3.

In loading the ringer, the size adjuster arm 31 is rst disengaged from all three of the size adjuster slots in the back I3 of the frame, and is swung clear of the frame so as to permit the cross head 32 to travel to the front of the slot 34. In this position, the jaws are fully opened and ring blanks of any size may be inserted between the jaws. The magazine follower is drawn rearwardly until the latch finger 58 engages the latch aperture S2. When the magazine is loaded with a series of ring blanks of the desired size, the size adjuster arm may be dropped into the slot 40, 4I or 42 corresponding to the size ring with which the magazine has been loaded. The latch finger 58 may then be disengaged from the latch aperture 32 in order to permit the magazine follower to travel forward and engage the rear ring blank I3 in the series.

The foregoing detailed description is given for clearness of understanding only, and no unnecessary limitations should be understood therefrom, for some modifications will be obvious to those skilled in the art.

I claim:

1. A magazine feed hog ringer for applying small, intermediate and large size standard hog rings, comprising: a hollow channel like frame and a guide member mounted in said frame to provide a magazine for a line of ring blanks; a follower to contact the rear blank in said magazine; a follower spring urging said follower forward to feed a line of ring blanks toward the front of the magazine; a pair of cross levers pivotally mounted on the frame with their handles flanking said frame, each of said cross levers having a forwardly extending jaw provided with a stop for said ring blanks and a crimping cam in rear of said stop; a cross head carried in the frame; a pivoted size adjuster arm on said cross head outside the frame, said arm having a pin adapted to extend through alongitudnal slot in the frame t0 limit the forward travel of the cross head; and links between said cross levers and said cross head.

2. A hog ringer as specified in claim 1 wherein the frame has three longitudinal slots the forward ends of which are out of alignment so that the extent of forward travel of the cross head is determined by the slot through which the pin on the size adjuster arm extends.

3. A hog ringer as specified in claim 1 wherein the size adjuster arm is pivoted on the pivot for the links between the cross levers and the cross head, and extends generally rearwardly therefrom.

4. A hog ringer as specified in claim 1 wherein the size adjuster arm may be swung free of the longitudinal slot in the frame and allow the cross head to slide far enough forward that a ring blank may be inserted between the jaws on the cross levers.

5. A hog ringer as specified in claim 1 wherein the' frame provides an outside lateral guide for a large size ring blank and the guide member provides an inside guide for a small size ring blank` 6. A hog ringer as specified in claim l wherein the follower has a pair of front guide surfaces to engage the rear ring blank to prevent lateral displacement of blanks in the magazine.

7. A hog ringer as specified in claim 1 wherein the frame provides an outside lateral guide for a large size ring blank, the guide member provides an inside guide for a small size ring blank, and the follower has a pair of front guide surfaces to engage and laterally position an intermediate size blank. f

8. A hog ringer as specified in claim 1 wherein the follower is provided with a pivoted hold-back latch having a nger projecting through a hole in the follower, and said finger is yieldingly urged against the side of the frame so as to releasably engage a hole therein when the follower is retracted for loading the magazine.

9. A hog ringer as specified in claim 1 wherein a hold-back latch on the follower is pivoted adjacent its rear end and has a laterally projecting finger at its front end which extends through an aperture in the follower and bears against the frame, and a spring is' tensioned between the front of the magazine and a spring lug on the latch to the rear of the pivot and on the side opposite the finger, whereby said spring urges the finger yieldingly against the'frame so that said nger releasably engages an aperture in the frame when the follower is retracted for loading the magazine, and the lateral pressure of the latch nger on the frame diminishes progressiVely as the follower moves forward. v

10. A hog ringer as specified in claim 9 wherein the spring tensioned on the hold-back latch is the magazine follower spring.

CLARENCE L. AUSTIN.

No references cited.

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