US1445599A

US1445599A - Milking-machine valve

Info

Publication number: US1445599A
Application number: US587817A
Authority: US
Inventors: Knapp Sydney Herbert
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-09-12
Filing date: 1922-09-12
Publication date: 1923-02-13
Anticipated expiration: 1940-02-13

Description

S. H. KNAPP MILKING MACHINE VALVE PM). M, 111923.

Filed Sept 12, 1922 Z'wrenn;

m I uit ZLW W W /f Patented Feb. id, 1923,

sYnnEY HERBERT mmrr, orj GREYTOWN, WnLLrne'roN, NEW ZEALAND.

i MILKINGJVLACHINE VALVE.

Application filed September T all whom it may] coawemfl Be it knovvn uthat I, SYDNEY lflnnnnnr ,Kimrr, a citizen oi? the Dominionoff New Zealand, and a subject of the King of Great Britain and Ireland, residing at Humphrics *pose of preventing admission or air to the system, when a teat cup or cups become dis- 5 lodged from or come oil the teat oi acow.

The object of theipresent invention is to provide an improved form 0i: valve, which .iscapable of being used, for )urposes other than, and in addition to that above menn tionedr i i i i According to the invention, the valve co1nprlses a valve casing provided "Wlth d1- i ,reotly opposite nipples adapted to be inserted in. orattached to milk tubes, The passages'through said nipples can be 01": the

same diameter i 1 The hollow plugin which a ball is housed is tapered and has, directly opposite ports one larger in diameter than the other, the

larger port having {a bar Wire or the like secured across same-to prevent the ball seating itself in and clos ngthe sa d port. *The smaller port has an internal seating iornied around it for said ball. i i i The plug alsoghas projecting therefrom a pin which works between stops of the easing,soas to limit the turning movement io'l 'the plug in the casing to a lialt turn.

Projeeting from the plug is a spring 40 pressed ball adapted to engage in a circular s v inslde the easing.

The plug which is capable of being drawn.

out of the casingffrom the top,1is retained therein.Whilefinuse by the engagement of Lathe spring pressed ball in i said circular groove, said engagementhowever not be ng suliioient to prevent the plug from being re moved, when desired. V

A groove in the outer, surface of the plug connects or extends from one port to the iother port tl'lElQllhflVllllG a further groove 12, 1923. serialjn 587,317. i 1

extends from said eonnectingrgroove bottomor smaller end of thevplug. 1 i

The plug is, provided With a handle or thumbpie ce, whereby it can be operated.

to atmosphere through ports, screws onto to the An inverted cap or ball container, .openY the lowerrend of theicasingrthe,ball held in said cap or container being adaptedjtof seatitselfinand close thelovver end of the casing on the airbeing exhausted tromthe interior of the plug, and or the casing. v

A cross piece fitted in the lower end of the plug has projecting; downwards therefrom a spring pressed pin against Whiehthe ballin the inverted cap or container is held so as to compress the spring actuating said pin, when said ball is seated in the lower end foithe casing. i H

The inve1tecl-cap or container open to atinosphere and the ball therein, are provided for the purpose of ensuringthat air will (get behind the ball in the: plug, on the breaking down of the vacuum in thelatter by a cup or cupsjcommgfofi',ateator teats as v vhen such happensthe ball in the loap or container, assisted by, the springoperated 13111 drops andv opens the lower end of the casingto atmosphere thereby ensuringthat the ball in the plug Will be forced into its thereby preventthe entrance of airftothe systern.,f

The grooves inlthe plugare provided to ensure the ball in the cap or container, corn- ,ingnndeI- the effects of vacuul'n when required so to seatfitself in the lower end of th'eeasing and prevei'itthe entrance oi: air to the latter-and theplug.

The drawings herewith illi'istrate the invention:

Figure valve. i

Figure 2 is ELSGCtlODLlPlflIl on line l-i.-.A, Figure 1, and I I t i t Figure 3 is an enlargedsectional elevation ofthe cross pieee.

seating around the port in the plug and 1 is a sectional elevation of the Thevalve casing 1 provided with directly Opposing

nipples

2 and 3 adapted to jbe i in The plug has directly opposing

ports

6 and 7 of different diai'neters, the larger port 6 having a cross wire 8 or the like to provent the ball seating itself in, and closing the said port. The port 7 has a seat 9 for the ball I The plug has a pin 10 which works between steps 11 on the asing, so as to limit the turning movement of the plug in the casing to a half turn.

Projecting from the plug is a spring pressed ball 12 adapted to engage in a circular groove inside the casing. The plug 4:. which is capable of being drawn out of the casing from the top, is retained therein,

avhile in use by the engagement of the ball 12in the circular groove, the engagement however not being sui'licient to prevent the plug from being readily removed when desired. v

' A semi-circumferential groove 13 in the outer surface of the plug 1 connects or extends from the port 6 to the port 7 and another groove 14'extends from the groove 13 tothebottom of the plug t.

A cap 15 having. ports 16 and screwed 'uponth'e lower end of the casing 1, holds a ball 17 adapted to close upon a seating l7 and, close the lower end of the casing, when the air is exhausted from the interior of the plug land or casing 1.

A cross piece 18 fitted into the lower end of the plug 4 has projecting downwards therefrom a pin 19 having a head 20 against which a spring 21 presses. The ball 17 p when on its seating 17 pushes in the pin 19 and compresses the spring 21. During milking operations the ball 17 is held on its seat 17 by the vacuum and when the vacuum isbroken by a teat cup or cups coming oil a teat or teats, the ball 17 assisted the spring operated pin 19, opens the lower end of the casing to the atmosphere.

thereby ensuring that the ball 5 will be forced into its seating 9 and th'erebyprevent the entrance of air to the system.

The

grooves

13 and 14 are provided to ensure that the ball 17 shall come under the effects of vacuum when required so as to close on its'seat 17 and prevent entrance oi? air to the casing and plug.

The nipple 2 opposite the larger port 6 is adapted to' be put into communication with the milk passage or passage of a teat cup claw either by being rigidly connected to the claw, or by flexible tubing or tubing and pipes, while'the nipple 3 is adapted to be connected by flexible tubing or pipes with a vacuum creating source.

. To permit milking operations to proceed, the plug'is turned to bring the ports into re ist r was, the nipples, and so that the larger port 6 registers with the nipple 2. With the teat cups inposition on the teats and milking operations proceeding normally, the ball remains below the ports (3 and 7 and the ball 17 closes on its seating 17, but should. the teat cups tall oil the teats, the angle which the valve assumes and the sudden drop thereof causes the ball 5 to jump in the plug 1 and the ball 17 leaves its seating 17 whereupon the inrush of air through the ports 16 forces and holds the ball 5 against the seating 9, thereby preventing air su'ilicient to interfere with milking operations from entering the apparatus.

When the teat cups are replaced on the teats, the slight leakage allowed by the groove 13 enables the air in the passages on the teat cup side of the valve to be exhausted and on the pressure on each side of the ball 5 becoming equal the latter drops in the plug 4t and allows the milk to pass through the valve from the nipple 2 to the nipple 3.

\Vhen a set of teat cups is not being used during milking the entrance oi air ('11!) be completely shut off by giving the plug 4: a quarter turn.

It it is desired to flush the machine by drawing water through the same. the plug 41- is turned so that the port (3 with its wire 8 will register with the nipple 3. the result being that when the teat cups are inuucrscd in water, the ball 53 does not interfere or prevent the entrance of the water to the system.

hat I do claim and desire to obtain by Letters Patent of the United States of America is 1. A. valve for the purpose described comprising a casing with opposing nipples, a plug in the casing having a port adapted to register with the nipples, and a ball in the plug adapted to close one of the said nipples.

2. 31 valve for the purpose described comprising a casing with opposing nipples of different diameters, a plug in the casing having a cross port adapted to register with the nipples, and a ball in the plug adapted to close the smaller of the said nipples.

3. A valve as claimed in claim 2, wherein the ball is prevented i a wire from closing the larger nipple.

41:. A valve as claimed in claim 1. the plug of the casing being made hollow with directly oi iposing ports oi diil'ercut diameters and adapted to register with the nipples, a wire across the larger port and the smaller port having a. niched seating.

A valve as claimed in claim 1, the nipples being of equal diameter, the plug being hollow and having opposing ports of different diameters adapted to register with the nipples, a wire across the larger port, and. a groove around the plug adapted to connect the said ports.

6. A. valve as claimed in claim 5, and having a groove connecting the groove around the plug to the bottom of the plug.

7. A valve as claimed in claim 5, and a rap having ports secured to the bottom oi llb lllO

Cir

the casing, and when in the cap adapted to seat upon the bottom of the casing.

8. A valve as claimed in claim 5, having a cross piece in the casing, 2L spring pressed pin in the cross piece adapted to be operated by the ball in the cup when the said ball is closed uponits seating. I i

9. A valve as ehumed in claim iii-airing e cross P1808111 the casmg, asprmgpressed pin in the cross piece adapted to be operated by the ball in the cup when the said ball is closed upon its seating.

In testimony whereof I have signedmy name-to this specification in the presence of two witnesses.