US1963097A - Hog bleeding and defibrinating apparatus - Google Patents

Description

June 19, 1934. E. A. POE 1,963,097

HOG BLEEDING AND DEFIBRINA TING APPARATUS Filed May 14, 1928 2 Sheets-Sheet l J ATTOR s.

June 19, 1934. E. A. POE

HOG BLEEDING AND DEF IBRINATING APPARATUS INVENTOR.

2 Sheets-Sheet 2 Ill,

Filed May 14, 1928 Patented June 19 1934 UNITED STATES PATENT OFFICE HOG BLEEDING AND DEFIBRINATING APPARATUS 11 Claims.

This invention relates to tail bleeding and defibrinating machines of that class employed in the preparation of serums for the inoculation of hogs. Heretofore it has been customary upon cutting a piece from the end of the tail of a hog, to manually hold a draining appliance under the tail for the collection of the blood, the appliance being connected with a suitable suction creating means, and with such appliances it has been necessary to exert force manually to prevent such excessive compressive action on the veins at the root of the tail-as might interfere with the free drainage operation. This method. of operation was fatiguing on the operator and relatively slow, as one man could not operate on two or more hogs at the same time. Accordingly, it has been desirable to provide a machine whereby the blood from a plurality of hogs could be drained simultaneously under the control of a single operator. A further object has been to provide means for automatically performing the draining operations. Another object is to effect defibrinating action while the draining action is occurring.

With these general objects in view, the invention consists in certain novel and useful features of construction and combinations of parts as hereinafter described and claimed; and in order that it may be fully understood, reference is to be had to the accompanying drawings, in which:

Figure 1 is a side elevation of a machine embodying the invention.

Figure 2 is an end view of the same.

Figure 3 is a vertical section viewed in the opposite direction from Figure 1, taken on the line IIL-IH of Figure 2.

Figure 4 is a fragmentary inverted plan view of the table, the figures showing one of the container stems in section and catch mechanism carried by the table for securing the stem at the desired adjustment in the table.

Figure 5 is a perspective view of part of said catch mechanism.

Figure 6 is an enlarged section showing the screw and nut arrangement for effecting the engagement of the clutch-members or permitting said clutch-members to become declutched.

Figure 7 is a view partly in side elevation and partly in section of the blood drainage tube construction.

Referring now to the drawings in detail, 1 indicates a skeleton framework of any desired length and equipped along its front and rear margins with tracks 2, and above the framework is a support 3 of substantially the same length and width as the framework, equipped with a plurality of rollers 4 engaging the tracks 2.

Extending transversely of the framework near one end thereof, and suitably journaled therein and in a bearing 5 in fixed relation to the framework, is a shaft 6 equipped at the front side of the framework with a loose worm gear 7 engaged by a worm 8 on a shaft 9 suitably journaled on the framework and equipped with a pulley 10 to be driven by a drive belt or the like, not shown, through the medium of an electric motor or any other source of power. At the opposite end of the shaft 6 is a disk 11 having a wrist pin 12", engaged by one end of a connecting bar 13, the other end of said bar being pivoted as at 14 to the under side of the table 3, so that the operation of said shaft shall impart endwise reciprocatory movement to the table.

The shaft 6 carries a clutch member 15 rotatable with the worm gear, and a slidable clutch member 16, the latter being keyed to rotate with the shaft and adapted when engaged with the loose clutch member, totransmit power from the driven shaft 9 through the constantly rotating worm gearing to effect longitudinal re- .80 ciprocatory action of the table. The shaft 6 carries a coarse-threaded nut 17 rigid with the framework or the main bearing 5, and said nut is engaged by a screw 18 which, when properly turned, advances and forces clutch member 16 into engagement with clutch member 15, reverse movement of member 18 permitting automatic disengagement of the clutch member.

To effect adjustment of screw 18, it is provided with a crank arm 19 pivotally connected by a link rod 20 to the depending crank 21 of a short shaft 22 journaled in a bearing bracket 23 depending from the framework, and mount ed on the front end of said shaft convenient to a person standing at the front side of the framework is a lever 24. Said lever is equipped with a sector 24 having a pair of notches 25 and 26, and a spring-actuated latch-bolt 27 on the framework, is adapted to engage one of said notches when the lever is set to hold the clutch 1 members unolutched, and to engage the other notch to hold the clutch members in engagement. With a long machine it is desirable to have a number of levers similar to lever 24, for starting or stopping the movement of the support, in which event they'will be pivotally connected together at their lower ends and to the first-mentioned lever, by a link rod 28.

The support is provided at suitable intervals with vertical openings 29,,there being preferably two or three of such openings within convenient reach of an operator at each hand lever 24, as with a machine of this character one attendant is able to conveniently take care of the simultaneous drainage operation on two or three hogs. Fastened to the underside of the support coincidentally with each of the openings 29, is a collar 30, and extending vertically through each of said openings and the corresponding collar is a stem 31 having its righthand face flattened and formed with ratchet teeth 32, the said stem having a key or spline 33 engaging the table and collar to prevent rotating movement of the stem.

A catch 34 fits slidably in each collar, andnormally is held in engagement with the toothed face of the stem by means of a spring 35, one end of the spring bearing'against a strap'36 secured on the collar as a resistance'point for the spring. The catch is pivoted exteriorly of the c'ollarto the-dependingcrank arm-37 of a shaft 38 'journale'dnnthe support or in any quivalent'inanner, and 'said shaft projects be- "yon'd the front edge of the support 'and is equipped with'a'handle 39 for convenience in Withdrawing the'catch to provide for vertical adjustme'nt of the stem 31.

Shaft "38 is providedwith a second depending crankwpivotally connected by a link '41 to the depending 'crankarm 42 0f a set'screw- 43 mountedjin the collar, "and adapted when the lever isfl'tfirown; to cause engagement of the catch-34 'with 'thestemto' be turned and apply clamping pressure-on the 'st'ema'nd thus'guard'against any accidentalfdescending movement of the stern, it beingf'noted by reference to Figure'5, that the connection between the crank-arm*37 and shank of the eatchmakesprovision for lost motion so that both the catch'and the screw-may be properly engagedwitlrthe stem 31at the same time. -lila'c' h"stem 31 "is equipped 'atits upper end with'afork44j and pivotally suspended within the fork by trunnions45-isa semi-cylindrical holder 46' for agl'ass orequivalent bloodcollecting -jar 47, a rubber band ifi'or the like; encircling the carrier and; the "jar to guard againstaccidental dislocationbf the latter. The holder is mountecl for tilting 'laterally-wi'th respect to the table and fthe'jarisprovided'withfthe customary closure cap -fitted"'-with an" air-tightconnection, a short section bf hose51'or the like; forming an extension for a drain tube orbleeding horn 52 provided at its'bpposite end 'with a shorthose section 53 -to'recei've the'bleeding tail of ahog,'thelatter'be- 'ing-ad'apted to be confined withina crate or other support so that the upper end'of the-hose'section '53 may bear "againsthim at the base of the tail, the-fentire tail 'thus'being within the-drainage tube or' blejedi'ng device, or clasp around any pa'rt of the-"tail stub with sufiicient force to prevent air "entering the hose section at such point of "e'iigagementbut not with sufiicient forceto so compress-the veinsasto arrest the'free flow-of blood through" the tail, the drain tube having an opening '54 for connection by a flexible tube 55-to"any' suitable suction appliance, not shown, tending to create a-vacuum in the tube and thereby facilitate H the "blood-drainage operation. Becausepf the -iieir'ibility orresiliency of thehose sction531itwillaccommodateitself to tails of reasonable; variation in thickness and, in "conjunction with' hose section '51,"avoids the necessityof exactlypositioningthe hog at any certain "offii'z'ed point relative to thetable. The "tail' of the hog may, within reasonable limits, be disposed above, below or to the right or left of the most appropriate position Without preventing a proper engagement of hose section 53 with the tail.

In practice it has been found that the creation of a vacuum in the drainage tube has a tendency to result in the undue pressure'of the hose section 53 against the animal and hence interfere with the free flow of the blood from the tail. To guard against this tendency of the drainage dev-ice or horn to cling tightly to the animal and interrupt free flow of blood, a restraining or controlling mechanism to prevent undue suction of the horn on the flesh of the animal must be provided. One method of accomplishing this result isto provide the horn with a hook 56 connected by achain or other non-elastic connection 5'7 as well as efiectuallyinitiates defibrination. In

the practice-operation of the machine, howeven as soon-as a-hog has'been bled to the desired degree, the station isshut downand the container is removed, the completion of defibrination being eifected' in the ordinary manner. To accommodate hogs of different size or in different relative positions -with respect to the support the container supportsare verticallyadjustable as shown,

and for further-accommodation and for regulating thepressureof the drainage tubes on the hogs, the standards -where engaged With the chains 57, are "provided with vertical seriesof teeth 59. The said standards may be-of-any suitable type, but preferably consist of angle bars detachably fitting in =notches I 60 of angle plates 61 secured to the table.

As the-containermoves with :the' tableit tilts back 'and forth and the combined-movement keeps -its contents in moretor less violent agitationso that it is impossible-to determine 'just when the container is chargedto the extent desired. Furthermore; when theoperationwis in progress on several hogs 'theblood :colle'ctedl within aparticular periodwill vary in the-different containers. It is therefore importantathatany operator who from experience judges his container or 'oneof those under' his-ichar-geahas collected 'thedesiredwolume of blood, shallilbefia ble toarrest the table movement long enoughxto permit the contents of such containerztozsettle l until he by visual 1 inspection, can determine ithe level of the blood collected. Toithusarrestithe support he grasps' and operates the: mostaccessible lever 24-'to effect theseparationpf the clutch members. If hehas' collected the quantity-desired, the hog is removed and he then removes the 'co'ntainenand replaces'*it'with another, a secondhog being thenbrought-up to-have-his tail cut and the bleeding part fitted to the drainage tube. 'In' practice each hog is subjected to'the jblee'dingbperation" anumber of timesusually 'th'reeflat intervals about a week apart. The *blood'collected'is later putthrougha process not concerned -with this particular bloodeollecting apparatus, and is then ready for distribution as a serum for use in inoculating hogs against disease.

From the above description, it will be apparent that I have produced apparatus embodying the features set forth as desirable in the statement of the objects of the invention, and while I have shown and described the preferred embodiment, it is to be understood that it may be changed in various particulars without departing from the spirit and scope of the appended claims.

I claim:

1. In a hog bleeding and defibrinating apparatus, a support, a container mounted for vertical adjustment on the support, means to lock the container in vertically adjusted position, a blood drainage device having a suction opening, and connected to the container and. for receiving the stub of the tail of a hog, and means for imparting movement to the support for agitating the blood delivered to the container through said device.

2. In a hog bleeding and defibrinating apparatus, a support, a tiltable holder carried by and above said support, a container carried by the holder, a blood drainage device having a suction opening and connected to the container and for receiving the stub of the tail of a hog and means for imparting movement to the support for agitating the blood delivered to the container through said device.

3. In a hog bleeding and defibrinating apparatus, a framework, a support reciprocally mounted thereon, a tiltable holder carried by and above said support, a container carried by the holder, a blood drainage device having a suction opening and connected to the container and for receiving the stub of the tail of a hog, and means for imparting movement to the support for agitating the blood delivered to the container through said device.

4. In a hog bleeding apparatus, a support, a framework supporting the same, means for reciprocating the support, one or more containers mounted on the support, a blood drainage device for connecting each container with a bleeding stump of the tail of a hog, a plurality of levers connected for conjoint operation, means actuated by either of said levers for throwing the power means in or out of gear with the support, and means for holding the power means in operative or inoperative relation to the support.

5. In a hog bleeding apparatus, a stationary support, a horizontally movable member mounted on said support, a container carried by said movable member, a drainage member on said container adapted to receive the tail of a hog and to conduct blood to the container, means for applying suction to the drainage member and mechanism for reciprocating the movable member and thereby agitating the container.

6. In a hog bleeding and defibrinating apparatus, a support, a container thereon, a blood drainage tube having a suction opening, a flexible hose connecting one end of the drainagetube with the container, a hose section carried at the other end of the drainage tube for fitting around the stub and bearing endwise against the hog around the root of the tail, a standard on the support, a flexible connection adjustable vertically on the standard and connected to the bleeding horn, and means for imparting movement to the support for agitating the blood delivered to the container by the drainage tube.

7. In a hog bleeding and defibrinating apparatus, a support, a stem mounted vertically on the table and provided with a forked upper end, a semi-cylindrical holder tiltable in said fork transversely of the support, a container fitting in the semi-cylindrical holder, an elastic band for holding the container in the holder, a blood drainage device having a flexible connection with the container and a suction opening, a hose section fitting in the other end of the drainage device, a restraining mechanism connected to the horn to cooperate in the support of the latter by the container and to prevent excessive pressure applied by the hose section on a hog being bled through the tail, and means to reciprocate the support at right angles to the tilting action of the holder.

8. In a hog bleeding and defibrinating apparatus, a support, a holder on the support and having a toothed stem vertically adjustable on said support, a container carried by the holder, catch mechanism engaging the stem for holding the same at the desired point of adjustment, a drainage tube having a suction opening and connected to the container and for receiving the stump of the tail of a hog, and means for imparting movement to the support for agitating the blood delivered to the container through said tube.

9. In an animal bleeding machine, the combination of a support, a member movable on the support, a container carried by said movable member, a suctional bleeding device communicating with the container and being adapted for abutment against an animal to be bled, a reciprocatory link in driving relation to the movable member, mechanism for operating said link, and mechanism limiting relative movement between the bleeding device and the animal being bled.

10. In an animal bleeding machine, the combination of a support, a member movable on the support, a container carried by said movable member, a suctional bleeding device communicating with the container and being adapted for abutment against an animal to be bled, a reciprocatory link in driving relation to the movable member, mechanism for operating said link, and a flexible connection secured to said bleeding device to limit its movement toward the animal being bled.

11. In an apparatus of the character described, a support, a member sustained by and capable of movement only in a prescribed pathwith relation to the support, a container on the member, a suctional bleeding horn communicating with the container for conducting blood to said container, a reciprocatory link in driving relation to the movable member, and mechanism for operating said link.

EDGAR A. POE.

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