US1053992A - Valve. - Google Patents

Description

I. HEWITT.

VALVE.

APPLICATION FILED AUG. 4, 1909.

1,953,992 Patented Feb.25,1913.

WITNESSES INVENTOH.

votive-i.

T 0 all whom it may concern:

Be itknown that l, JAMES Hewirr, a citizen of the United States, and a resident of l the city of b ew York, borough of Brooklyn. in the county of Kings and State of New York. have invented a new and Improved Valve, of which the following is a full, clear, and exact description. The object of the present invention is to rcvide an improved valve of that class havmg 21 metal body and rubber seating surface or face. which shall be light, strong and cheap of manufacture, and in which the rubber shall be held securely.

One embodiment of the present invention is disclosed in the structure illustrated in the acco rpanyiug 'tlrawings, in which like characters of reference denote correspondingr oarts in all the views, and in whichi igure 1 is a vertical section of a gnetal form held in position within the male and female members of a metal mold for casting the rubber valve faces, a centering tool being shown in connection therewith; F i '2 is a vertical section of the metal form saovm in its condition as delivered from the metal casting mold; 3 is a similar section showing the metal form after having been subjected to the forming diesy l ig. is a top view of the metal form after having passed through the forming dies; Fig. 5 is a back view of the netal form; and Fig. *3 is a vertical section of the completed velve.

The special application for which a valve or" the character described is employed is in water pumps and particularly of the plum ger type. It has been found that the hard rubber valve serves the purpose of the ciapper valve employed in sueh machines better than the ordinary metal valve. 011 the other hand, the fragile character the rubber valves has given considerable trouble owing to the breakage of the valves in use. It was to overcome the objections involvedin the use of the ordinary rubber valve that E vented a valve composed of rubber forced by metal, upon which inventioov patent was grantee to me the ith day of June, 1895, hearing the number 54 3,56 3

The present invention provides an improved valve of this class, avoiding the use of perjoretions for keying the rubber, which tend to weaken the body, and in which the rubber is held more securely against, breakage or separation from the metal.

Eyecificatiou of Letters Patent.

Patented 25,1913.

Application filed August 4, 3909. Serial No. 511,1ti3.

l'n'the present valve the metal form is preferably cast from copper, bronze, brass or ther suitable metal and run as things is compatible with strength, forming theiuody portion or web 7 which connects the upstanding flanges 8 and 9 ahd the tongues 12 and 13. he flange 8 forms: the central guide perforation adapted. to fit over the valve guide stem. The outer flange 9 is pro vided to give strength and fol-into the com-' pleted structure. Both flanges are restricted in height so that in the completed structure their edges do not approximate too closely to the seat of the valve.

The valves may readily be made-by the following method which is preferably used. The metal forms are cast, being arranged as shown in Fig. 2 of the drawings, with an outer and inner series of separated vertically arranged tongues 1.2 and -13. These tongues are so shaped as to be readily drawn from the molds in which they arecast and without complicating the mold. That is, so that the terms may be drawn from a two-part old. The tongue s12 and 13 are formed as thin as compatible with good casting. When delivered as castings the forms are placed in suitable dies in which the tongues 13. are curled or struck outwardly toward the flange 3/. Ti tongues 12 are curled or struck inwardly toward the flange 8. in this operation there are formed channels lO'ernd l1 overhanging which are the curled totl'gu 12 and 13. The forms are lure centered and bored to receive the valve stem. thefurther process of manufacture a mandrel 21 is driven into'the perforatioii for the stem, and the mandrel form with the mandrel in place is introduced into thd female member 19 of the. mold for casting the rubber fei oeriegs 1e and 15. For introducing the form :7 mandrel into the female mold 19, e provided in the said mold a perforetion toreceiue theextensioiifitl' of the said mandrel. 'The mandrel and form being;- in positiomtlie mole member 18 of the mold is slipped over the mandrel 21 depressed. upon webs 7, 7 and the sides of the,said mold, and the male and female members, Where they register, are closely 105 met as to prevent the feathering of the when run into the mold. The metal form being thus held between the mold members, the rubb composition is pouredinto the mold, intermittently about the 110 tongues 12* and 13 in such manner as to be anchored rigidly in position thereby.

llhen the mold has cooled and set. and the mold members 18 and 1.!) parted, the valve is found to have the characteristics as follows: A- metal valve provided With rubber face rings, said rings being rigidly and insepaably connected with the metal of the valve.

A valve constructed in accordance with the method above described and having the structural features set forth and as shown in the drawings, will be light, strong and durabio, and may be formed to occupy as little space as the ordinary metal valves employed in this art.

Having thus described my invention what I claim as non and desire to secure by Letters Patent is 1. A valve, comprising a metal body having an unperlorated portion for receiving a face ring, a series of anchors extending transversely to and within the face ring space. and.a rubber face ring molded about the anchors to form a (Ol'ltllltlOllS body penctrated by the series of anchors and anchored thereby to the unperforated portion of the body.

2. A valve, comprising a metal body having nnperforated portions for receiving face rings, a series of anchors extended transversely to and within each of the face ring spaces, and a plurality of rubber face rings forming the valve face and molded about the anchors to form a continuous body penetrated by the series of anchors and anchored Itjhereby to the unperforated portions of the odv.

3. A valve. coniprising a metal body hav-- ing formed therein a perforation to receive the guide stem and provided with a channel the side whereof is divided and overhung to form a series of anchors. and a rubber face ring mold d Within said channel and held therein by he said overhung portion thereof.

l. A valve, comprising a metal body provided with a suitable peripheral flange and a channel adjacent thereto having overlnmg noaaoaa sections forn'iing anchors for a face ring, and a rubber face ring extending from said channel and formed by being molded therein.

5. A valve, comprising a metal body having peripheral and central upstanding flanges and a solid connected web or body portion between the said flanges, annular grooves formed adjacent to said peripheral and central flanges, tongues formed integrally with the body portion to overhang the said annular grooves. and face rings formed of a composition difi'erent from the said body por-' tion, extending beyond the said body portion and secured thereto by being molded within the said annular groo es.

6. A valve, com 'irising a body portion having upstanding peripheral and central flanges and a central perforation to receive the guide stem, annular grooves adjacent to the said peripheral and central flanges, short tongue sections formed integrally with the said body portion and extending over said grooves. and valve face portions formed of Suitable material by being molded within the said annular grooves to extend beyond the said body portion and totally inclosing the said tongue sections.

7. A valve body portion, comprising a metal disk having a flange and short tongue sections extending toward said flange to form an overhung channel therewith adapted to receive a suitable face ring.

8. .l valve body portion, comprising a metal disl; having a peripheral and a central upturned flange and short tongue sections for each of said flanges formed integral with the body and extending toward said flanges to form in conjunction therewith overhung channels adapted to receive and hold face rings.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAM ES HElV I TT.

\Vilnc -ses E. I JOHN M L'RDUt n l. Davi

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