US762078A

US762078A - Puppet-valve and support therefor.

Info

Publication number: US762078A
Authority: US
Inventors: Bernard Morgan
Original assignee: Individual
Current assignee: Individual
Priority date: 1903-10-05
Filing date: 1903-10-05
Publication date: 1904-06-07
Anticipated expiration: 1921-06-07

Description

PATENTED JUNE 7, 1904. B. MORGAN. PUPPETV VALVE AND SUPPORT THEREPOR.

l APPLICATION FILED 00T. 5. 1903.

N0 MODEL.

/N VEN Tol? .3er/z ard falyaz/ B Y il A ToH/VE YS nmmulllVll-nnlu A Y A lmmmmllllll Mnl Patented June '7, 1904.

PATENT OEEICE.

BERNARD MORGAN, OF RHINEBEOK, NEV YORK.

PUPPET-VALVE AND SUPPORT THEREFOR.

SPECIFICATION forming part of Letters Patent NO. 762,078, dated J une 7, 1904:.

Application filed October 5, 1903.

To all whom, it may concern:

Be it known thatI, BERNARD MORGAN, a subject of the King of GreatBritain, anda resident of Rhinebeck, in the county of Dutchess and State of New `York, have invented a new and Improved Puppet-Valve and Support Therefor, of which the'following is a full, clear, and exact description. i

This invention relates to a class of puppetvalves in which the valve and its stem are held to play toward and from the seat by a cage through which fluid or liquid may pass, the volume of flow being controlled by the Valve and determined by the distance intertionary or automobile motors.

The invention consists ,in the novel construction and combination of parts, as is hereinafter described, and defined in the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure l isa side view of the improved Valve and valve-cage. Fig. 2 is a sectional side view substantially on the line 2 2 in Fig. 3. Fig. 3 is a plan view of -the device, and Fig. 4 is a sectional side View showing a slightly-altered construction of the valvesupport.

rlhe valve-cage that supports the valve and its stem in operative relation to the valveseat consists of an annular base-piece 5, having a true lower surface a, that affords a seat for the valve, which will presently be described.

At a suitable point above the seat a an offset shoulder is formed on the base-piece 5, that is thickened in its side wall to permit the formation of said shoulder, and opposite Serial No. 175,740. (No model.)

` theshoulder a circumferential flange c is integrally formed, that defines with its upper surfacethe upper side of the base-piece. The cage or valve-support also comprises a twopart cap-piece, the duplicate parts 6 6 thereofY having contact on aline (Z, that coincides with the aXisof the annular base-piece 5, and each cap-section is formed, essentially, as shown. The lower portions of the half-sections 6 6 are semicircular and together form a cap-ring having a radial flange e, that is true on the lower surface and adapted to seat upon the true upper surface of the flange c on the basepiece 5. The flange e at its inner edge merges on the lower side into a depending' circular wall e. that bears upon the true horizontal face of the annular shoulder I), and to render these surfaces gas and liquid tight where they have contact they may with advantage be ground together.

' In each cap-section 6 6 an opening g is formed for the free passage ofI motor fluid therethrough` these passages or ducts leading into the chamber g', formed partly in the basepiece 5 and partly in the joined cap-sections 6 6, as is shown in Figs. 2 and 4L.

From the upper part of each hal f-section 6 6 a semicylindrieal flange projects, these flanges having straight edges that are extensions of the straight surfaces of the main lower portions of said cap-sections, so that when the latter are placed'together on the line il the semicylindrical flanges will abut upon the same line, and the said flanges will together provide a guide-sleeve 7.

The upper portions of the cap-piece sections 6 6 are preferably raised to give said cap-piece dome shape in its upper portion, and the base o'f the sleeve 7 extends down through the center of the raised part mentioned, so as to provide an orifice of equal diameter through the Sleeve and cap-piece.

The valve consists of a circularly-cdged disk or block 8, that is true on its upper surface at and near the edge, which surface may have contact with the seat a on the base-piece 5 and for effective surface should form a tight joint thereon. From the center of the valve 8 a stem 9 projects thatis ata right angle with the upper surface of the valve-body, said stem loosely IOO fitting in the bore of the guide 7 and alined orifice in the cap-piece.

Upon the end of the valve-stem 9 that 1s opi posite from that which is affixed to the valvebody 8 a circular head-flange 9 is formed, said flange a'flording an annular shoulder that projects equally from the stem. The length of the stem 9 is so proportioned that a space is formed between the head-flange 9 and the upper end of the guide-sleeve 7, this space determining the degree of opening had by the valve 8 when it is removed from its seat a and is arrested by the impingement ofthe head-flange upon the guide-sleeve.

A coiled spring 10 is mounted upon the stem 9 and has enforced engagement with its ends upon the head-flange 9 and the cap-piece of the valve-cage at the base of the guide-sleeve 7, which the spring-coil encircles, and for effective service the strength of the spring must be sufficient to insure the seating of the valve 8 upon the annular seat a when pressure on the valve from gas or liquid that enters the chamber f/ through the openings f/ is relaxed.

1t will be apparent that as the head-flange 9" is formed integral with the valve-stem 9 it renders the bisection of the cap-piece of the valve-support necessary, as unless this provision is made it would not be possible to assemble the described parts of the valve-stem and valve-cage for use as a concrete device.

The valve is preferably employed asa means for inducting charges of motive fluid into the cylinder of a portable engine, such as themetor on an automobile, and to adapt itfor such service it is affixed in proper position for receiving pressure of the motive agent (that may be gas, explosive vapor, or steam) directly upon the surface of the valve within the chamber g. rlhe pressure of the gaseous motive agent upon the valve compresses the normally expanded spring 10 sufficiently to seat the head-flange 9u upon the adjacent end of the guide-sleeve 7, which will correspondingly unseat the valve 8 and permit the motive agent to f'lovv under pressure into the motor-cylinder or into a communicating explosion-chamber, if such a construction is employed.

1t will be seen that the provision of an integral head-flange 9" on the end of the stem 9 obviates a source of danger that is contingent upon the employment of washers and cotterkeys or screwed collars that are ordinarily placed on the end of the valve-stem to form an abutment for the end of the reti-actingspring, such as 10, as it will be impossible for the valve to be dislodged from its seat entirely or a greater distance than that permitted by the limited sliding movement of the valve-stem 9, that is controlled by the headflange 9.

ln Fig. 4 is shown a modilied construction of the valve-cage, which essentially consists in the provision of a male screw-thread 1', that is formed on the exterior of the depending annular flange or wall e and that screws into thefemale thread v7, formed in the side wall of the recess that has the horizontal shoulder for a bottom surface. It will be seen that the pressure of the motive agent and that of' the spring 10 serves to retain the cap-piece of the valve cag'e or support in contact with the base-piece 5 when these parts are not joined together with the threads al v7, and, as is represented in Fig. 2, said screwed connection being of advantage when the special application of the valve and its cage requires that the parts of the latter be positively secured together, as shown in Fig. 4.

The improved puppet-valve and its support may be formed of any suitable metal forged or cast into form and subsequently finished by suitable means and can be produced at a moderate cost.

Having described my invention, .I claim as new and desire to secure by Letters Patent- 1. The combination with a circular valve having a flat upper side, a stem projecting centrally from the fiat side of the valve, and a circumferential head-flange on the opposite end of the valve-stem, of a valve-cage comprising an annular base-piece having a flat circumferential flange, a two-part cap-piece having a circumferential flange adapted to seat upon the flange on the base-piece, a bisected central sleeve projected from the eappiece, said cap-piece being apertured between the circumferential flange and the guidesleeve, said sleeve loosely receiving the valvestem, and a coiled spring mounted upon the sleeve and pressing the head-flange and cappiece, so as to enforce contact between the circumferential flanges of the base-piece and cap-piece.

2. In a device of the described construction, the combination with a circularly-edged valve having aflat side, a cylindrical stem projected centrally from the flat side of the valve, and an integral head-flange projecting peripherally from the end of the valve-stem, of a valve support or cage that affords a seat for the valve, comprising an annular base-piece having a true seat for the valve on its lower end,

a circumferential flange at the upper end thereof, an annular recess formed at the inner edge of said flange, a two-part cap-piece havf ing a radial flange at its edge, a depending flange entering the recess, the side walls of the recess and depending' flange having' threaded engagement, the cap-piece having dome shape above the radial flange, and apertures in the dome-shaped portion, a two-part guidesleeve central on the dome portion of the cappiece said sleeve loosely receiving the cylindrical valve-stein, and leaving a space for play of the valve, said space intervening the headflange and the upper end of the guide-sleeve, and a coiled spring mounted upon the guidesleeve, and contacting at its ends upon the head-flange and cap-piece.

IOO

IIO

IIS

3. In a device of' the character described, tures therein above the radial flange, and a the valve cage or support, comprising an antwo-part cylindrical guide-sleeve projected nular base-piece having a valve-seat on its centrally from the top of the cap-piece. lower end, a radial flange on its upper end, In testimony whereofhavesigned my name I5 5 an annular recess at the inner edge of the rato this specification in the presence of' two subdial flange, a two-part dome-shaped cap-piece seribing Witnesses.

having a radial flange near its base, adepending annular flange projecting below said ra- BERNARD MORGAN' dial flange, the depending flange entering the Witnesses: IO recess when the radial flanges have contact F. H. THORNLEY, with each other, the cap-piece havlng aper- N. S. PALMATIER.