USRE13876E - Cow-milkingt machine - Google Patents

Description

A. V. & R. L. HINMAN.

00W MILKING MACHINE. AAAAAAAAAA II FILED DBO 11, 1914.

Reissued Feb. 9, 1915.

a s n n n THREE! 1.

I Ivvnv-r'oks A. V. 8: R. L. HINMAN.

00W MILKING MACHINE. APPLICATION FILED DEG. 11. 1914.

- Reissued Feb. 9, 1915.

I valved milk chamber type,

ARTHUR v. HI NMAN m RALPH L." HINMAN, or (mama, nw YORK.

' coW-MILKING 'macnmn.

Specification of-lleissued Letters Patent.

Reissued Feb. 9, 1915.

. Original No..1,097,803, dated'ifay 26, 1914, Serial No. 711,744. Application for rei'lsue filed December 11,

1914. Serial No. 876,750.

, T all whom it may concern Be it known that we, ARTHUR V, HINMAN and RALPH L. HINMAN, citizens of the United States, residing at Oneida, in the I county of Madison and State of New York,

have ointly invented certain new and useful Im .rovements in Cow-Milking Machines, of -Wh1Ch the following is a specification.

This invention relates to improvements in vacuum cow-milking machines of the to improve and simplify their construction and to provide an exceedingly simple, readily operated, easily cleaned, noiseless and highly ,eliicient apparatus of that class for milking one cow, or, a number of cows simultaneously.

At present in machines of this type there is no way of automatically controlling the vacuum, so that with each pulsation of the piston of the air pump the entire contents of the milk chamber are emptied; and, there is no way .to prevent the milk from entering at some point'the center of the milk chama her during the milking stroke of the pump; and no way of preventing a portion of the milk bein drawn. from the milk chamber into the exible tube connected with the pump, and even into the pum itself.

ur invention is mainly desi ed to overcome these defects by provi ing an improved and simpler apparatus and, accessories.

Ourinvention is a 'develo ment and improvement of the invention escribed in the specification of our prior Patent No. 907,236, Serial No. 410,608, granted December 22,

. More especially the invention resides in the rovision of a cow-milking apparatus, in w ichthe hose leading from the suction pump is connected by means of a nippleto a milkchamber 'ca able of being closed air tight, and opened By an automatic valve at its lower end, which valve is closed by gravity and atmospheric pressure durin the out stroke of the ump piston, and which is opened during tlie in stroke'of the iston by the weight and pressure of the mi k a ainst it as it is discharged from the milk chamber, the milk having previ ouslv been drawn thereinto upon the out stroke ofsaid pump piston; thus permitting the apparatus to .be attached to the cover,

its object being letters in the and used in connection with any receptacle of ordinary construction, without the necessity of providing a special air tight covering for the same.

The milk-chamber may consist of two parts, a head or perpendicular part, and a body or curved part, easily joined together so as to form a unitary chamber, and easily separated forthe purpose of cleaning, said parts having laterally projecting spaced flanges adapted to receive between them a portion of a milk pail cover. The body of the milk chamber may consist of two or more curved jtubul'ar parts, with a common upper part 'capable of being attached to the lower part of the head, and.

with two or more lower openings closed by automatic valves, instead of consisting of one curved part with one valve, "the several valves being opened by the'pressure and Weightof by their own weight and by atmospheric pressure.

the out-flowing milk, andclosed These, and various other features which constitute the special matterofthe invention, will be readily understood from consideration of the following detailed description; the preferred embodiment of the invention being illustrated in the accompanying drawings, in which correspondingparts are designated by the same reference several views. I

' Figure 1 is a view of ratus as assembledfor operation. Fig. 2 is a' vertical section through the two-part milk receiving chamber. Fig. 3 is a view similar to Fig. 2 except the head and body: are not jolned, and showin the automatic valve of the body opened. ig. 4 is a horizontal section of the head of the milk chamber and vertical and horizontal nipples. Fig. 5

is a vertical section of the curved body oftlie milk chamber and the vertical with milk fiowinginto the chamber through the horizontal nip 1e, with automatic valve closed. Fig. 6 is g flowing out oflower end'of the milk chamber. Fig. :7 is a. vertical view of the head and nipples, and the body composed of two elbow curved parts with two openings and valves.

- Referring more particularly to the drawings, .Wehave illustrated the invention as assembled and installed for operation.

similar view with milk the 'milking appahead,

A is designedto represent a piston 'u np h n a sultable P 19 ml was th s reciprocating .bar B mounted upon the stanchion frames C, as disclosedgin our formerpatent above'idntifiedl"-*" A represents a curved elbow'shaped milk chamber consisting of two parts, ii-"detach able head B, and a curved body C.

D represents a vertical nipple or tube, passing through the-centerof the detachable head B, and extending upward a; sufl'r cient distance so that a fi'exlble hose D con 'nected with the air pump A canbe'at-' tached thereto; and -extended downward through the top of the-head a sufiicient dis tance, so that its lower end is on a line with the lower-edge of the he'ad; E'is a horiliom tal nipple, or tubeyattachedto and opening into the head B on atangentwith its circumference, to" which can be attached in hose-E connected with the teat cups 'F:; E does not extend into :the head' 3 beyond its interior circular surface, 'so that the v 1 openin of E into the head is oblong, represented' y 0, and is between the top. of "said head B and its lower edge." The hea'd'B formed of two parts, a tubular section c preferably externally threaded at its upper end, and a cap or 'cover'b'- having a depending internally threaded circumferential flange for receiving-thethreaded end of the part andYa laterally and circumferentially extending flange a (1 represents the-curved body'of the'milk chamber with its upper end fitted -to-"en-' gage with the lower end of B, thus unitingthe inside surfacesof B and C, so as to form a; JOOIItIIIUOUS smooth interior surface." The upper end of C is provided'with ailaterally rind-"circumfere'ritia'lly extending "ffla nge --e gspaced in the assembled 'structu're a sufii'cient distance Tfrom'the-1 i ange-dto receive. between them a portion of a milk pail cover f-.- In the operation of assem v blin the device the "upper end of the part C is" t rust through an opening in the pail cover until the flan e -e-' contacts with the'cover. The cap I 'is then screwed upon the bod-y'C until the flange --d. comes in contact with the pail cover, at which point the partsB and G arebroughtinto -such relative position as to form a' smooth'im teriormilk spreading surface. 0 is curved like an elbow, 'so'that its upper part is vertical and its lower part nearly horizontal;

the edge of the lower part of the opening t re the milkchainber;

1 milk spreading g 'rteriorsurface's' of the; head B and body 0.

. tighti'and the milk nipple E, "and its and body IQ "of" theinilk charnben Qh'e ad B andibody C filled with air,

T so iilcan be easily removed, and, s o that 1 55" 91618651 ower end t 0% its own weight.

tag between lugsattached to the upper part of 0 near the edge of the opening W-byai pin P passing through openings in the lugs and an opening in the upper part of arm I.

N represents a screw pin passing through anopening in thelower end of T' and screwed into aboss in the center and on the. outsideofdiskF.

X represents a nut which retains the arm in place upon the screw pin or stud N, the opening through which the screw pin passes behigjlarge enough to allow the screw pin to" 'm'ove'freely therein and to. revolve with the'dis kiFii Y M represents milk flowing into and opt of S represents the smooth, concave, circular surface forrned by the in- .'The operation ofthe a ate-is as follows.'-When the air pump commences to Qapital letter T represents a removable arm exhaust the air through the nipple 'D from head 1B "and curved body G of the milk chamber,the "alve-F rests against the edge ofxthe-"openinght thedovvererid of C, and tarid thetpressureof a r on it outersurfacegicloses the opening an: M is'drawn through the the smoothconiiave circular 'mil spreading surface S,fbrmed by the inner 'curved surface of headB," and is thereby caused to spread uponi-agnd cling to S', and to flow ln'a circular and downward direction on olblong opehin' I O, onto thereby leaves an openjspace'inthe center of P sothat jpliinp pistbnnfAt the return stroljie of the pistonfth 'fweight of the milk in body C, dp'ensvalve F ?-automatically and the null; flows outof. opening'W into' the receptacle provided for it. W ile' the" last' of the milk is'fiowing "from oblon 'opemng there not 'beiii enou' hmilk at that timein U to completgy fill" a small opening is left at the top of free openingW and valve. F, and when the stroke of the piston is a am startedto'fexha'ust the air from body and vhead B of the milk chamber A, the opening W- of body 0, is not completely closed at its upper art, while the lower part of the opening V is stillkpt partially closed by the out flowing "milk; as the exhaust stroke continuesa {short distance the milk chamber-A is'alinost completely" emptied of the milk;

while the last of the milk is flowing out,

but, as. soon as there is not suflicient milk flowing out of to keep F open, it closes automatically, and, there being only a small amount of milk left in C, .it is impossible for it to be drawn upward to the lowerend of nipple D, and, therefore, it is'impossible for milk to enter nipple D, or the tubular connection with the air pump, or the pump itself. Also when the milk is drawn into head B through nipple E it cannot touch the lower end of D because it-clings to and,

spreads upon S, the interior surface of head B and body C, and the force with which it enters and spreads gives it a rapid circular motion, and its own weight causes it at the same time to run downward in a circular manner, until at the time the lower part of C is filled with milk, the exhaust stroke of the piston is ended, and the weight of the milk and pressure of the flow opens valve F and the-body C is emptied. lhis process is repeated as long as milking continues. I

By having the milk M enter the milk chamber Athrough the nipple E- on a tangent with the surface of B, and through the oblong opening 0, used as a directingorifice, conterminous with S, the interior circular surface of head B, using S as a} spreader and director, the milk spreads upon, clings to and whirls around upon the interior surface of B and C so that none of the milk reaches the center of B and C, which center'is filled with air, and the ex-. haustion'of the air through D is not interfered with, and it is not necessary to have any interior sleeve to protect the interior opening of D. By the use of a milk chamber curved like an elbow, and oblong opening W on an obtuse angle to the perpendicu lar, so that the valve F can be worked; bygravity, by the out flowing milk, and byat mospheric pressure, the operation of 'the device is rendered automatic,.extremely sim- Ple and exact.-

There is no wearing of the It is unnecessary to make use ofas ecialairtight receptaclein connection w1t this parts, the valve F is easily removed'for cleaning, the-head B is attached to the body C by a thread andapparatuanor is it necessary to render the vessel air tight by use of a special cover, therefore, as the milk chamber is rendered airtight by means of its automatic valve,

andhead, it can be employed with any ordinary receptacle, being supported in any manner upon the cover'thereof, or otherwise,- as preferred. 3

a We claim:

1.'In a cow milking apparatus, a milk chamber having a valveless inlet and a substantially air-tight valved outlet closed by gravity. i

2. In a cow milking apparatus, a milk chamber with its upper end closed and provided with a perpendicular air exhaust nipple projectin into its upper end a short distance and fliaving an "open lower end, a horizontal nipple entering the milk chamber 'tangentially'to'the circumference thereof and at a point between the upper end of the milk chamber and lower end of the perpendicular nipple, a diskat the lower endof the milkchamber connected thereto so .as to'move into and out of contact with the edge of thev lower end of the chamber to 'form .an air .tight contact therewith, the movement of 'said disk being controlled by grav1ty,by the outflow of milk from the cylinder and by the exhausts of the air from the cylinder.-

part is nearly horizontal, the edge of the opening at its lower end being at an angle vobtuse to the plane of the top of its upper end, the opemng beingoblong, the lower edge of the opening extendin beyond its upper edge, a-disk secured ad acent to the upper part of said openin to move into and out (of contact with the e ge of the same so as to form an air tight contact therewith,

the movement-pf said disk being controlled 1 by gravity, by the outflow of milk from the chamber and by the exhaust of air from the chamber, the upper end of said cylinder being closed air tight by a removable cap, said cap provided with aperpendlcular mpple pro ecting through its center a short distance, said cap being provided with a hor1- zontal nipple near its upper end and enter ing the milk chamber tangentially-to the surf-ace thereof, so that the opening of said nip lje into the chamber is oblong and above the" ower end of the perpendicular nipple pro (acting through the cap. 1. *Ina milking apparatus,a tubular milk chamber, an inlet entering said chamber substantially tangentially to the surface there'- of, and means for discharging milk therefrom.

' 5. In a milking apparatus, a tubular milk chamber, an inlet to said chamber adapted -to discharge milk tangentially to, the inner at 3. In a cow milking apparatus, 'an elbow th th lo g even ng,- a' emo a arm 7 All".

s :I- I sa es? heeat and means. a si t n mills hsreia h- 6- In milki g apeera ua tnhiilar substantially tangentially to the surgfage t e q and aheye thaplan at he end of its an exhaus pipe andmeans ten ha emg mi k therefrem- 8'- n Ne mil ng app ratus n e bow shaped mill; chamber, urved at n angle $1 that tspua a t-heme s a vq tieal-Posii- $4 .1 it lever part its-nearly horizonta -s the sa s-9 h p hg et'I sl Wer' e d be ng a an angle obtus to th p ane of. th top at t eP-P i s h pe i g he ng b 'a the l we d o t e openi g ea eadin yond ts u per edge, a remov ble s lf a. iusting' revolving, round disk adapted to 0 en and with its u pe and n b hetve h we'hia ast n g9 edge the c as ps p sses lau an pen n i t lowe and f't e' arm? a d int 'o j fon he nter l he out de at he di k, a set which retain thearm i p ace p n he sc pin p Stud, the ope in bein enough-to e110. h pi ts mqve eey he e n and t e to l yre plv w h. h -p n d nut an, i

. t e d s. 9. h ea 'hrh t o a tigh eh ta t w thh edge oi th pe ng, 9 t e m vement. o sa d disk nd arm n op nits and c asin h 'l e en fth m k aha nb r belnace tm e by grav y nd y a l? htflhw m fro he c ambe and efl t e when q he m p mp- In a m lk ng apparatus, a tubular milk chamber a subst ntially vertical ai exhaust Ri s end ng wlthul id hambe a 1. fsgantlalyhorizontal inlet pipe entering said 9 amber tanfgentiall to the surface thereof and means from said chamben- 10. In a milking ap aratus, a tubular milk chamber, a-substantl 1y vertical air exhaust pipe de ending within said chamber, a substantial y horizontal inlet pipe entering said chamber-tangentially to the surface thereof, and above the. planleof the end of the air exhaust pipe, and means for discharging milkjrom said chamber.

11. In a. cow milking apparatus, a milk chamber having a valveless inlet, means for exhausting air from the chamber, and a subor disc arging milk asel.ly a: ve vedhutletcloseq y 1: discharging m r -313, In a cow"milking apparatus, a-milk chamber-having a valveless milk inlet, an

a rem vabl p Pu h g, removablei h s 9 a r fr m h chamber, by

' wheeze 'valvelesl'smilkinlet; an all. exhaust-connection, a milk outlet and an outlet valve; pd'sitioned outside' said cham be: and clo d' y gralwityland the haust Q air from said chamber;-

air exhaust connection, amilk'outlet, a valve for said outlet, and meahs located outside the milk chamber for supporting said valve.

14. In a cow' milking apparatus a 'milk chamber havinga valveless milk inlet, an air exhaust connection, a milk outlet, avalve for said outlet, said valve-positioned outside the milk chamber, and means located 'outside the milk chamber-for supporting-said valve. v p f "f 15; In a cow milking apparatus, a milk chamber having 'aWalveless' milk inlet; an

air exhaust connection, a 'miik'outlet, a valve I for said outlet, said valve positioned outside the milk chambert and means located outside the milk chamber for supporting said valve in position to be brought into air tight relation with the jmilk outlet by the exhaust o a from said chamber 7' 16. In a cowgr'nilking apparatus, a milk chamber having a milk'inlet in substantially cen inuouis ommunication w th d chamherduringthe milking operation, a milk e tl t end-a al e t'e'i sa d outlet, said valve supported by means located entirely outside thsvmi k hamb r 17. 1 1 a'cow milking apparatus, a milk chamber having a'niilk' inlet, an "air exhaust.

connection, a outlet, a valve for said outlet, said valve supported by means lo ca ed outside the milk'chamber and adapted to discharge milkinto a receptacle at substa tial y norma atmospheric pressurea 18. a coWjmilking" apparatus, atubular member constituting a milk chamber and armed of wo sepa ate" Parts remo ne ted toge her, aid parts having their adjacent edge portions adapted to be-spaced apart, milk inlet and air exhaust connections' with said chamber, and a'valved outlet for said chamber.

19. In a cow milking apparatus, a milk chamber comprising two separate removably connected membershaving parts adapted to a.

be normally spaced for receiving between them the cover of a milk receptacle, a milk inlet, an air exhaust connection, and a valved utlet 20; In a cow milking apparatus, a milk chamber formed are tubular body section and a cap removably connected thereto, a

milk inlet and an air exhaust 'in connect-ion with the ca a milk outlet in connection withthe 3!, port on, a valve .tcr said Out- I 9 I v i let, said valve located outside said chamber its lower part .is nearly horizontal and tere and adapted to be brought into substantially minates in a valved outlet, a milk inlet, and

air-tight relation with said outlet by the means for exhausting the air from said exhaust of air from said chamber. chamber. g 16 I 21. In a cow milking apparatus, a milk 7 In witness whereof we have hereunto setchamber having a valveless milk inlet, a our handsthis 7th da of December 1914.

valveless unobstructed air exit, and avalved ART UR V. HINlSIAN.

' outlet for the milk. RALPH L. HINMAN. I

22. In a cow milking apparatus, an elbow Witnesses: I

O shaped milk chamber ciirved at an angle so Gmmms R. Herr,

that its upper part being vertically disposed I 'Mam I. Hmmrr.

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