US2485874A - Automatic hog ringer - Google Patents

Description

Oct. 25, 1949. c. FORST 2,485,874

AUTOMATIC Hos RINGER Filed March 5, 1947 2 Sh'ee ts-Sheet 1 INVENTOR. C21 7'. Z 1 0 76 2 mmwa.

ATI'EI RN EYE Oct. 25, 1949.

c. FORST 2,485,374

AUTOMATIC HOG RINGER Filed March 5, 1947 2 Sheets-Sheet 2 INVENTOR.

S BY flmjimv.

A'ITD R N EYS Patented Oct. 25, 1949 UNITED STATES PATENT OFFICE 2 Claims.

My present invention relates to the general class of animal surgery, and more specifically to an improved automatic hog ringer or manually operated instrument for inserting in or attaching a ring to the nose of an animal.

The primary object of the invention is the provision of an instrument of this type having a magazine feed for the rings, together with feeding mechanism for a single ring, and a lever-operated jaw co-acting with a fixed jaw for securing the ring in place; and in which a minimum number of parts are employed. The parts may with facility be manufactured at low cost of production and conveniently assembled to insure an instrument that is speedy and accurate in the performance of its functions, and which may be manipulated with ease by one skilled in this particular art.

The invention consists in certain novel features of construction and combinations and arrangements of parts as will hereinafter be described and more specifically set forth in detail in the appended claims.

In the accompanying drawings I have illus trated a complete example of a physical embodiment of my invention in which the parts are combined and arranged in accord with one mode I have devised for the practical application of the principles of my invention. It will, however be understood that changes and alterations are contemplated and may be made in these exemplifying drawings, within the scope of my claims, without departing from the principles of the invention.

Figure 1 is a view in side elevation of an instrument or hog ringer, partly broken away for convenience of illustration, and in which my invention is physically embodied.

Figure 2 is a top plan view of the instrument in position reversed from that of Fig. 1.

Figure 3 is a side view of the instrument shown in Fig. 2, partly broken away to show the retracting spring and the adjustable stop for the operating lever.

Figure 4 is a front end view of the instrument.

Figure 5 is a longitudinal vertical sectional detail view of the instrument, showing its interior operatin parts.

Figure 6 is a partial top plan view and partial horizontal sectional View as at line 6-6 of Fig. 5.

Figure 7 is a horizontal sectional detail view similar to Fig. 6 with the ring carrier in initial position.

Fig. 8 is a vertical longitudinal sectional view showing the ring carrier or feed device in elevation.

In carrying out my invention I utilize a barrel or tube forming a housing and magazine for the rings, and in cross section the tubular housing conforms to th shape of the open or split rings; in this instance the rings are illustrated as of flattened elliptical shape, and the interior of the tubular housing conforms to this shape.

The rear end of the tubular housing or barrel is closed by a removable plug 2 of hollow construction, having an exterior head it fitted against the open end of the housing.

The tubular housing forms a magazine for a number of the split or open rings 4, and the rear end of the removable plug is locked within the housing by means of a radially arranged latch pin or bolt 5 mounted within the plug and pressed by spring 6 into a keeper or hole in the housing. For removal of the plug an arm "i of the latch pin or bolt projects through an opening in the head 3 of the plug, wher it is readily accessible to a finger or thumb for unlatching the plug.

The rings 4 confined within the tubular housing are mounted upon a removable spring-feed magazine that includes a pair of vertically spaced rods 8, 8, each of which at its rear or outer end is secured by a lock nut 9 on the inner plate H) of the removable plug, into which plate the rods are threaded, and these rods pass through a transversely arranged guide plate or follower I l. The plate or follower conforms to the interior bore of the tubular housing and it fits neatly therein for a sliding engagement in upright position with the inner surfaces of the tubular walls.

The follower acts as a feed plate for the rings, and it is pressed by springs l2, 12 on the rods 8, 8, to feed the row of rings toward the mouth of the tubular housing.

For controlling and regulating the feed of the rings a central rod I3 is slidably mounted in the plug 2HJ and passed through the follower plate II, and an exterior handle or knob l4 may be utilized for this purpose. The control rod 01' bar is provided with an annular groove or notch 15 for co-action with the wall of the opening in the plug plate ID to retain the bar in set position, and an enlarged head It is mounted on the inner or front end of the bar to prevent displacement of the rings from the magazine.

A single ring is removed from the front end of the row of rings in the magazine, carried to operative position, and then clamped in the nose of the animal, by the manipulation of an operating handle or lever i! that is automatically retracted by spring l8 interposed between the handle I? and the tubular housing, and an adjustable set screw or stop I8 is mounted in the handle, which is pivoted at I 9 on the housing, to regulate the movement of the hand lever.

To accommodate the operating parts of the instrument, the open front end or head of the instrument is provided with two lateral compartments or casings and 2|, and a bottom casing 22; and the open .front end ofthehead 'or' mouth of the instrument is fashioned with an upper fixed jaw 23 shaped to receive and fit over one end of the ring. With this fixed jaw, a movablee jaw 24 co-acts to squeeze the two spaced ends of the split ring, as indicated in Fig. 5;

The movable jaw 24 is provided withial pair.

of spaced arms 25 located within the casing 22 and the inner ends of the arms'are fixed rigidly" on the pivot bolt or pin IQ of the operatinglever l1, so that the movablejaw will swing upwardly as the operatinglever is pressed downwardly, towardthe tubular'housing, for clamping the ring in place.

The front ring is picked'from the magazine and carried to position for clamping, between the jaws by means of two' pairs of gripping'fingers 26', 26, that form gripping notches 21' at their free ends to gripand carry the ring. One finger of each pair is rigidly mounted upon a rock shaft 28 that is journaled in.the opposite side walls of the hollow head of the tubular housing. The other grippingfingerof each pair is loosely mounted on the rock shaft in close relationship with the rigid finger; and a spring 29 is interposed between parts of the two-fingers for resiliently holding the loose finger in operative and gripping relation with the rigidlysupported finger; for'carrying the ring.

Therock shaft is rocked or'actuated by movement-of the operating lever or'han'dle; through the instrumentality of two bell crank'l'evers' 30 that are pivoted at 3! in the walls ofthecasing 22 of the hollowhead' of the tubular housing; and the bell crank levers are actuated by a pair of exterior links 3-1, 3+" that pivotally=connect the bell cranlrlevers" with the operating leveror handlez One of the bell crank levers- 30" is located in position to swing and contact against" a push rod 33' that is mounted'toslide in abracket 34' located within the housing or rather within its hollow'head, and the push rod is-pivotally conne'cted to a crankarm or rocker arm'35'rigid witli therockzi shaft 2 8, a spring 35 being anchored toa wall of-' the head and to the push bar for swinging the'carrier'armsor fingers back to the row of'rings, to grip another" ring.

The pairs of carrier fingers are normally and resiliently held in gripping position against: the front ring of the row of rings in: the" magazine;

4 as in Figs. '7 and 8, and the initial movement of the operating lever, through the bell-crank connection and push rod connections to the rock shaft, swings the fingers to carry the selected ring to the position of Figs. 5 and 6. The spring .36 then retracts the push rod and rockshaft to swing the carrier fingers back again to the front ring of the magazine row, thus clearing the mouth of the head of the instrument for the clamping mevemenh ofa the movablerjawagainst the ring, as the latter is pushed ihtmengagement with the nose of the animal for clamping thereon.

For replenishing the supply of rings within the magazine the latter may be withdrawn from thetubular housing by means of the headed plug; the'additional supply of rings may be slipped onto the spring rods of the magazine, and then the reloaded magazine may again be slipped into the tubular" housing for further use of the instrument.

Having thusfully, described my, invention, what .L claim. as new and desire. to. secure. by Letters Batentis'z.

1;. In aringing. instrument including a. tubular housing andlholl'ow head having clamping jaws at the mouthlofthe. head,,and a spring, pressed magazine for a. row of rings, the combination with. a rock-shaftjournaled in thehead and a pair of gripping fingers mounted thereon for gripping a ring, from said. row, of lever operating'mechanism for clamping the jaws on a; ring, and means actuatedj'bythe leveroperating mechanism'for rocking'said'shaft', for the purpose. dc.- scribed.

2. In aringing'instrumentincludinga tubular housing containing"a spring pressedrow of rings; ahollow headhaving clamping'jaws at the mouth or the head; andlever operated mechanism for clamping the jaws on a ring, the combination with a rockshaft' journaled in the head, of a finger rigid with the shaft, a finger loosely mounted on the shaft, anda spring-'co-acting with saidfingers to grip a ring; and means actuated by the lever operating mechanism=forrockingsaid shaft, forthe purpose-described? CARL FORST.

REFERENCES CITED The followingireierences are ofrecord' in the file of this patent:

STATES PATENTS Number Name Date 68 13721 Holland Dec; 26, 1901 1,136,149 McGowan Apr. 30, 1915 1 3063714 Parker June 1'7; 1919 13 181491 Gibney Oct. 14, 1919 1'3594i998 Burns Aug. 3, 1926 1,710,742 McNabb- Apr; 30; I929

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