US1481990A - Hand milking machine - Google Patents

Description

Jan. 29, 1924. 1,481,990

W. H. DELAHAYE HAND MILKING MACHINE Filed Amil 11-, 1923 Patented Jan. 29, 1924.

UNITED STATES y v arne PATENT orris.

WALTER HAIVIILTON DELAHAYE, OF OTTAWA, ONTARIO, CANADA, ASSIGNOR TO THE NATIONAL MANUFACTURING COMIPA CANADA.

NY LIMITED, OF BROCKVILLE, ONTARIO,

HAND MILKING- MACHINE.

Application filed April 11, 1923. Serial No. 631,468.

scribed is designed to be. supported as set.

forth in the above mentioned specification. The operation of the device will be fully set forth as the description of the device pro-' grosses.

This device may also be regarded as an improvement ontheunit shown in the copending application of the applicant and Edouard Vandecan, filed July 3rd, 1922, and bearin Serial Number 572652.

.In tie drawings Fig. lis a top view of the unit. 'Fig. 2 is an elevation, partly in section of one form of theunit. Fig. 3

shows a modification in the mounting of the glasses and a difierent form of float. Fig. 4

shows a modification of thelower'part of so the unit which may be combined with the features of construction shown in the other figures. Fig.5 is a'still further modification, and Fig.6 is a cross section through the top plate shown in Figs. 1 and 2, and shows the slotted projection for supporting the device, which portion is not shown in the other figures.

Referring first to Figs. 1, 2, and 6, between the somewhat similar plates, 1 and 2, glass tubes, 3, are clamped, the plates being held by a rod, 4. Said rod, 4, is held rigidly in the lower plate, 2, and passes loosely through the upper plate, 1. By use of the thumb nut, 5, the plates, 1 and 2, maybe tightened on the tubes, 3. The plates, 1 and 2, are recessed at 6, and provided at 7 with seats or grooves for the gaskets, 8, so that a tight joint is made. Leading to the centre of the recesses in the top plates are ports, 9, in which are pressed the nipples, 10. The ports, 9, connect with a central tube, 11, mounted inthe plate. At right angles to the nipples, 10, and in about the same plane are the nipples, 12, which lead to a vertical bore, 13, which ends in the raised seat, 14, the purpose of which will be mentioned later. The bore, 13, passes through the plate and is threaded to receive. the

screw, 15. This screw is slotted and is pro vided with a knurled head so that it may be easily adjusted. When opened up it will be seen that a limited amount of air may be admitted through the slot end so the vacuum in the glasses may be regulated as will be more fully described. On the tube, 11, is slidably mounted a float, 16, which'is provided with a gasket, 17, and is held by a pin, 18, passed through the tube; The recesses in the plate 2, are provided with gasket seats and gaskets but are tapered into the bores of the tubes 19, as shown in dotted lines in Fig. 2. The ends of the tubes, 19, are cut at an angle as shown and these angles face inwardly. To close the ends of the tubes, 19, fiat valves, 20, and gasket-s, 21, are hung thereon by the loops, 22, which have inturned ends adapted to engage in holes in the edge of plate, 2. i

To support the device the top plate is provided with a projection, 23, (see Fig. 6g, which has a slot, 24, to receive the flat a justable support mentioned in my copend ing application. The outer wall of the slot may be tapped as at 25 so a thumbscrew may be used 'to more securely hold the unit on the P P- The operation of the device will now be described. The unit is mounted on the pump as already described and the tubes from'the pump are slipped on the nipples, 12. The teat cup sets are attached in the usual manner to the nipples, 10. The teat cups having been applied to the animal being milked,

' on operation of the pump a suction stroke will, after the flow of milk has started, draw the milk into the glass and it will rise therein. If the flow is full enough the milk may fillthe glass and cause the float to rise. The gasket'on the float will then be brought into contact with the raised part, 14, of the bore, 13, and thus connection with the pump will be effectually cut off and the entrance of any milk into the pump prevented. As will be understood. from a study of, the type of pump setitorth in my copending application, a double-acting one with each end connected to a glass, it will be seen that the opposite stroke of the pump will cause a; pressurein the glass so that the milk is discharged therefrom through the bottom valves into the milk can thereunder. It will beunderstood that the valv s, 21, stay, closed under the influence of gravity and so when a suction is established in a glass, milk will flow through the tube, 11, to the lower end or the tube, 3, and will rise therein until the float closes the passage, 13. Continuation of the suctioncannot therefore afi ect the flow of milk. On the pressure stroke the milk is discharged as explained; It will also be understood. that the glasses fill and discharge alternately when both are being used, though, each may be operated separatelyas they are separately connected to differentiends of the 1 9;

Referring to Fig. 3, a modifiediorm is shown; In this case the glasses, 3, are supported directly by the strap, 26, which is of lightflat materialand is held around the glasses, and at the same time to a. support, 28, by means of the screws, 27. This strap may becutaway as shown so as not to obstruct the View of the milk, rising in the glasses. The support may take any form but it'preterahly has an upper cross. bar, 29, which has threaded bores for thumb screws, 30, which are centrally placed over the glasses. Instead of plates, 1, to close the upperends of theglasses, theseparate cups,

3],, are used and these are provided with the pump nipples, 12,.but the nipples, 10, are omitted; In the cup, 3.1,is a float, 32. As there is no tube, 11, in this form the float doesnot require a'central bore which simplifies the construction ot th is part. In this figure a hollow float is shown in crossnsection but any solid floatas shown in Fig. 2 be used. To support the float in the absence of central tube, 11, the gasket, 8, may be proportioned ,to project thereunder as shown. To replace the milk nipple, 10, and the tube, 11, the bottom oft-hedevice is modifiedas shown in Fig. 4. Thenipple, it is led into an extension on the valve seat or the, tube, 19,, and thevalve, 20, has "a pocket, 33, which when the valve is closed allows the nipple, 10, to communicatewith the interior of the tube, 19, and glass,

. This modification may be made to the form showninFigs. l and 2, and in Fig.

'show'njas such. When used with the type of top. shown in Fig. 3, thebolt, 4, would be replaced by an extension, 37, on the support, 28 which could pass through a hole in the plate and be provided with a thumb nut similar to the nut, 5.

' A further modification is shown in Fig. 5. Here the top forthe glasses is in sepa.-. rate partsas in Fig. 3, but each is provided withthe nipples, 10, and the central tubes, 11;. The floats in this case must be of the form shown in Fig. 2, that is they must be provided with a bore for the tube, 11. The bottoms of the tubes are closed by individual parts, 34:, WhiChare practically a half of the plate, 2, with the tube, 19, and valves. This part is supported by a. bail, 35, which passes over the chamber, 31, and is provided with a cam lever, 36, to draw the chamber and the bottom section into intimate contact with the glass. It is oi course to be. understood that gaskets, 8, are provided in all modificatiOIiS 'l i It is also self evident that the type of lower plate or closure shown in Fig. 4 and the top chamber shown in Fig. 3 may beincorporated in the last modiiicationand it has been deemed unnecessary to show a drawing 01 it. t may also be mentioned, that the relief screws, 15, shown in Figs. 1 and 2, will be used in all the types as it is found to be of great assistance in operating the machine to the bestadvantage. The ap plicant claims no invention in this feature as it is found in the art in earlier examples.

Various other. modifications may readily suggest themselves and such ascome within the scope of the appendedclaims are to be held as .covered thereby. The disclosuresas herein made are only for they purpose of illustrating thewcrking of the invention and are not tobe construed as limiting theinvention to the exact details set forth.

What I claim is;

1. In a milk receiver, atubular body, means to close the endsof said body, said body be. ing vertically disposed, the closure means provided with a valve controllingthe dischargetherefrom, an admission port, and a suction port controlled by a float in the said body, the closures beingprovided withrecesses for the ends of the tubular body, said recesses providing gasket seats and meansto detachably clampthe closures .on the body,

the whole being provided with means to sup:

port the device on a portable frame. I I

2., In a milk receiver, tubular bodies form: ing milk chambers, means to close the ends of the tubes, the closure means beingfde tachably clamped thereto andprovided with recesses forthe tubesand gaskets to; engage the ends of the tubes, suction ports in thetop closures, said tubes being verticahja' cutofl' float supported below each portfme'an'sto admit milkinto the tubes below said floats, the bottom closures being provided with} gravity operated valves to control fthe d'is charge of milk through the discharge open} ings provided therein,"the whole'device being provided with supporting means. 3. In a milk receiver, a pairfof vertical transparent tubes, closure plates clamped .to the ends of said-tubes, said platefs pifovidi'ng c i n Po le re' 'tss d, h rs irerts for each tube, gravity valves for closing'the' latter ports when suction is applied. to the tubes, a float in e'a'ch tube supported below the suction port, relief screws ,in' the top plates to regulate the suction in the tubes, said discharge ports. consisting of 'tubular extensions on the bottom plate having bevelled ends, the valves being each supported by a bail to allow it to swing against said end and be held thereto by gravity.

4. In a milk receiver, a plurality of transparent tubes, means to close the ends of the tubes, one being provided with means to support the tubes vertically on a portable frame, clamping means to draw the closures against the tubes, the closures being provided with recesses and gasket seats for the ends of the tubes, suction ports in the top closures, floats supported below said ports, means to admit milk to the tubes below the floats, the bottom closure having tubular discharges, the ends of same being bevelled, valves suspended to swing against the bevelled ends and gaskets on the said valves.

5. In a milk receiver, a pair of plates, said plates being provided with a pair of recesses and gasket seats, a pair of transparent tubes between the plates, the ends of said tubes being seated in the recesses and against the gaskets, means to draw the plates together and means tosupport the device in a vertical position on a portable frame, the

top plate providing for each tube a milk inlet and a suction port, a tube extending into the transparent tube centrally thereof and connecting with the inlet port, a float sliding on the smaller tube adapted toclose the suction port, the bottom plate having tubular extensions for each recess, the ends of the extensions having inclined, swinging valves to close the inclined ends.

6. In combination with the milk receiver set forth in claim 5 regulating screws in the top plate over the suction ports, said screws being slotted to provide an opening from the atmosphere to the interior of the tubes,

the means for drawing the plates together being a tie bar with a thumb screw and the supporting means being a slotted extension on the top plate.

In testimony whereof I have signed my name in the presence of two subscriblng witnesses.

WALTER HAMILTON DELAHAYE,

Witnesses Messy BAKER, ARTHUR D. POPE.

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