US1455891A - Attachment for valve insides - Google Patents

Description

May 22, 1923.

' M. c. SCHWEINERT ATTACHMENT FOR VALVE INSIDES Filed May 20, 1922 Fig ,2.

LF E INVENTOR I %mm4 By Attorneys,

, intent ed May 2 2, 11923,. 7 1 4155 1 I UNITED FATENT FF'EQE;

MAXIMILIAN CHARLES SC HWEI NERT, OF NEW YORK, N. Y.

ATTACHEKENT FOR VALVE INSIDJES.

Application filed may 20, 1922. erial 11.0. 582,503.

' when the insides are in position in the-cas- To all whom it may concern:

mg. My present invention comprises an at- Be it known that l, MAXIMILTAN CHARLES Soilwnmnu'r, a citizen of the United-"States tachment adapted to be directly applied to of America, residing in the borough of Manthe Valve insides, and which preferably, 111- 60 5 hattan, city, county, and State of New York, though not essentially, utilizes such thread have invented certain new and useful lmas'a means for connection to maintain said provements in Attachments for Valve lnvalve proper in a position wherein it is dissides, of which the following is a specificaengaged from said sea This attachment tion. pushes down the pin, and thereby moves the 65 This invention relates to valves for pneuvalve proper from its seat and prevents its inatic tires or the like, and particularly to c0ntact Wlth the seat until the valve inside the working parts or so-called valve insides, 1S ready f r l seltlon 1n the caslng. The and more specifically to an attachment usem n t a apted for the purpose 1s a fnl in connection with th same, simple cap threaded on its interior to engage w the aforesaid thread of the inside.

In the drawings, wherein l have illustrated one form of the invention,-

Figure 1 is an elevation of a valve inside, showing the improved attachment connected 75 thereto.

Fig. 2 is an enlarged view of Fig. 1, most of the parts being shown in diametrical section.

Fig. 3 is a view of the top of a valve casing. showing the inside in position.

Fig. 4 is a cross-section on the line 4-42 in Fi 2.

Be erring to the drawings which illustrate one form of the invention, let A indicate the insides as a whole. In the ty e illus trated the insides comprise a shell having an exterior thread C designed to screw into the valve casing, a seat D at the bottom adapted to make contact with the valve proper E and a packing washer 15 adapted to make a tight joint with the usual ta cred seat G formed on the valve casing H. hove the seat G and located in a suitable bore is a spring J, the lower end of which presses against the bottom of the bore and the upper end of which engages a collar K formed or carried by the valve pin L to which the valve proper E is connected. This construction of valve inside is already in certain types of valve insides the parts are so constructed that when the insides are separated from the valve casing (as well as when they are in place) the valve proper is urged against its seat bya spring. In any type of inside it is detrimental for the valve proper to remain in contact with its seat up to the time of actual use within the valve casing, when, of course, such contact is essential. In the type referred to, however, the "alve proper not only contacts with its seat, but is urged against it with considerable force by its spring, and this condition prevails from the time of manufacture up to the time that the consumer finally places the device in use. The rubber packing of the valve proper is by this means scored or indented so that it is apt to be leaky when it is finally used. Some difliculty, although to a'much less degree, is experienced in the use of the standard valve insides, wherein .the spring does not function to press the valve proper against its seat until the device is placed into use, but nevertheless, the mere contact is detrimental, since it may result in a slight curing of the parts together, or a slight indentation, which will interfere with the tightness of the valve when it finally reaches the tire. Y

Accordingto the present invention I prolltm ' vide a simple and eiiective means for avoiding this contact between the parts, which is applicable to the inside itself as distinguished from a container for the valve insides, or the valve casing itself.

In practically all types of valve inside there is provided a screw-threaded portion at the top, by means of which the valve inside is screwed into the valve casing, and there is also provided a pin which projects beyond the screw-threaded portion designed eventually to ec me th deflating means known and is used for an illustration of a type in which there is constant pressure of the valve proper E against the seat ll), irrespective ofwhether or not the device is in position in the casing. The present'device is, however, applicable to other forms than that shown, although it is of special utility in connection with the type illustrated.

According to the present invention, ll provide a means for engaging the valve inside and also the pin L, whereby to di lace the in downwardly, thereby moving t e valve proper l3 from its seat. While this maybe accomplished in various ways, the preferred 'fornris' that shown wherein I provide a the pin extends far enough beyondthe' endv of t e shell of the valve insides tobe en: gaged by the cap M without the latter projecting into the valve inside. However, if the pin is shorter, the cap M may be provided with a depression or the like which will insure sufiicient contact to accomplish the purposes mentioned.

The cap M may be variously formed, and there may be substituted. for it any means for engaging the shell of the valve inside and the pin L to hold the latter depressed.

The device is also useful in connection with the standard inside to insure that the valve proper does not contact with its seat before being placed into use.

It will, of course be understood that the cap or its equivalent should be applied to the valve inside as soon as the latter is manufactured, and remain in position until the consumer desires to apply it to the valvecasmg, whereupon the attachment is removed and thrown away if desired. The cap may be very cheaply constructed of thin sheet metal with a rolled thread.

While I have shown and described one that I do not wish to be limited thereto, since various changes may be made therein vwithout departing from the spirit of theinvention.

What I claim is l. The combination with a valve inside having a seat and a valve proper, of means carried by the valve inside for holding the valve proper in a position in which it is'disengaged from its seat. r

2. The combination with a valve inside having a seat and a valve proper, of means carried by the valve inside for holding the valve proper in a position in which it is disengaged from its scat, said means comprising a device engaging a screw-thread on the valve inside.

3. The combination with a valve inside having a seat and a valve proper, of means carried by the valve inside for holding the valve proper in a position in which it is disengaged from its seat, said means comprising a screw-threaded cap engaging a screw-thread on the valve inside.

4. The combination with, a valve inside having a seat and a valve proper, a spring carried by said inside, a pin connected with the valve proper against which said spring acts, and a member engaging the valve inside and said pin.

In witness whereof, I have hereunto signed my name.

MAXIMIUAN CHARLES SCHWEENIEER'H.

' form of the invention, it will be understood 1

Images