US978152A - Automatically-acting spring flap-valve. - Google Patents

Description

Patented Dec. 13,1910.

M. I. GUTBRMUTHi AUTOMATICALLY ACTING SPRING FLAP VALVE APPLICATION FILED Jun: a0 1905 M. F. GUTEBMUTH.

AUTOMATICALLY ACTING SPRING FLAP VALVE.

APYLIGATION FILED JUNE 30, 190B.

Patented Dec. 1 3, 1910.

3 sHEETs sEEET 2.

N itm'ises: I .[nvenir F MJ Jiffy M. F. GUTERMUTH.

AUTOMATICALLY ACTING SPRING FLAP VALVE.

APPLIGATION FILED JUNE 30, 1908.

Patented Dec. 13,1910.

3 SHEETS-SHEET 3.

Witnesses! shows a valve shown in Figs. 14 and 15 bein made of one piece.

iig. 3 shows first that the improved valve, in contrast to the older ones, has not a flat but a curved seat surface a, which when the valve closes fits tangentially to one wall e of the aperture of passage f. surface 9 is itself also made curved parta of the valve plate a bent up part b is connected, which absorbs in one or more coils (Figs.,4l11) or, as shown in Fig. 3, inafraction of a coil, the bending strains of the valve, the end 0 of which is attached to the valve casing.

In the form of construction shown in Figs. 4 and 5, several coils b are provided, the inner end of which is placed on a spindle 0 or attached in other manner to the latter. According to Fl s. 6-11 a separate spindle may be dispensed with and'the securin of the valve on the seatpperated in the fol owing manner. The innermost coil is prolonged at both ends over the sideedges m n oft-he flap valve and to these prolongations coils is directed in the same or an opposite way to the actual seat B means of these coils-la, the attachment of the valveto the seat or to a part firmly connected with the seat, or to the casing wall may take place. The attachment is effected most simply to the curved seatsurface atthe side 0 the valve (Figs; 8-11) or prolongation Z of the ac 9 (Figs, 6 and 7).. By

on the rearward tual seatsurface suitable attachment screws 39 this last coil and therewith the' flap may be connected .be connected with .m o stcoil c' and project through a suitable erforation of the spring part b (Fig. 7

l n the forms of construction shown in Figs.

with the seat body. If desired the continuation is, serving'for the attachment, may also the middle of the 1nner- 8-11,jthe' side coils k; which project beyond the side edges of the valve body by screws orin other suitable manner. The superiorit of this construction of valve as compare withthe older Gutermuth valve with a flat. seat and annel walls in clined obliquely to it (Figs. 2" and 2*) or standing at right angles tot (Fig. 1), consists in the following pro ,rt1es: The seat surface to be tightly close passage; the valve rests actually on the 'et or streainf-of fluid withlift-is not greater than the thickness of the jet, the fluidthusfundergoes no diversion during its'passa e to the seat and valve in.

contrast to the at se'at surface, in which a more or less great diversion of when it is being closed, takesp i tQ liih e The seat" curved. To the plate a are connected.

the coil to be conveniently the valve, extend to the front and are attached to the sides of the actual seat g of hoincides at the front part of the valve with the guide face of the Wall of the mounting 1t.

and 11 is shown,

' attachme the jet of fluid, when the valve is openand especially. frpnr'a sin "1e piece of entire length of construction of the valve considerably shorter than ment; the small length of construction allows a larger number of valves to be introduced and thereby a suitable diminution of the valve lift for-the requirements of rapid running and high speed. Ifdesired the curved seat plate, the spring coils and the coils servin for the attachment ofthe valve may e made of se arate pieces of similar or diiferent materia s and connected with one another by riveting, screwing, soldering or in other manner.

Instead of, as in the form of construction shown in Figs. 4: and 5 for attaching the flat valve, employing a spindle 0 passed through the valve, the following arrangevment shown in Figs. 12 and 13 may also be employed. The-spring coiled part b is con-' -nected with the curved seat a of the flap valve. Into the innermost part of the coil 3. bearin body 0 g r is passed from each side, whichbody consists of a socket 0,-,-a fiat wall g connected therewith and a curved or. fiat edge 1' flanged on this wall. The-edge is attached to the valve seat by screws p or by riveting or in an '1 other suitable manner. The sockets 0 of t are each provided with a slot 6, in order to allow the-bent up end of the inner part-of ushed therein. The bearing bodies described may, as men tioned, preferably be made, of a piece of sheetmetal, so that a particularly easy and cheap construction results. By connecting .the valve with its side attachment parts, the

mounting and adjusting are cilitated. The combination the attachment parts into signed in such a way that ished valve may be fixed on the seat without further treatment,'by being simply screwed thereon, so that special mounting and adjusting operations are considerably fa- Finally in Figs.- 141 6 a modification of the formof construction shown in Figs. 10

coils b, connected withone another and directed in opposite directions, nm

with the seat plate axconnected with the outer end of :one spring i1, and with the nt plate connec the other spring coil.

v 5a sat n-c.111

be made,

ese two bearing bodies I of the flap. and a whole is, dethe entirely finno longer requisite in in whichthe two spring I with v the end of In Fig. 16, the fiat U'shaped sheet of metal is shown from which the flap valve is made. This sheet of metal is perforated by a slot '2 which is also U-shaped, in such a way that the middle or connecting bar of the U-shaped metal plate is divided. into two parts a and c, and each arm of the plate into two parts Z) and k, which latter are connected at the ends i of the arms with one another. T he parts a and c of the middle bar, as shown in Fig. 14?, are suitably curved to the cylindrical seat surface g, while the connecting parts 5 and is of the arms of the plate are rolled up into similar coils. The front part a which is connected at the outer end of the first part of the coil 5, forms the anovable seat plate of the valve flap, and

the part a lying behind it, which forms the end of the second part It) of the coil, serves as the attachment endwhich is fixed on. the valve body by means of the .Washer plates 3' and screws 21. The spring of the flaps and their resistance to movement is'now dependent on the two coils b and 71:. According to the proportion of the length L of the flaps to the widths t and u of the coils and according to the selection of the thickness of the metal plate, the spring resistance may be correspondingly selected or chosen, while further the thickness of the part forming; the seat and also the attachment end 0 may if desired be made greater than that of the coils I) and h". This peculiar Gutern'iuth valve is also applicable Without further diiiiculty in case the seat plate a, as shown in Fig. 1:3, is not curved but perfectly flat and fits tightly on the fiat scat. face 9' of the valve body. The attachmeat part c lying behind the seat plate a in this case can either be made curved as shown in Fig. 15, or it can, like the plate a, be perfectly flat.

The great advantageof these improved. flap valves consists in that they may be made in av very simple Way from a piece of sheet metal cut out in a U form, that they have a small constructional length and that the mounting and adjusting of the valve plates extremely simple. The continuous metal plate ofthe valve plate might if desired be made in various thicknesses at se arate parts of the closing member, such as at the seat, at the attachment end or at either by suitably ing or soldering like thereon.

the coils, rolling ll; out or by r1vetthickening pieces and the i l l I l l l i l l 1 l l.

seat

I declare that what I claim is l. A flap valve comprising a spring flap, means for fixing the position of one end of said flap, a curved seat plate the other end of said flap, a correspondingly curved seat surrounding a port normally closed by said valve and means for conducting the fluid to said port in a direction approximately tangential to said curved seat.

A fiap valve, comprising a spring flap, means for fixing the position of one end 0' said flap, a curved seat plate at the other end of said flap, a seat member-having a surface curved to correspond With saidplate and a passage normally covered by said plate, one wall. of said passage being directed approximately tangentially to the curve of said surface.

In a flap valve, a spring flap comprising a part at one end adapted to be fixed in position, a curved plate at the other end of said flap, and an intermediate coiled. portion; means for fixing the position of the first-mentioned end of said flap, a seat curved to correspond to saidseat plate and surrounding a port normally closed by said seat plate, and means for conducting fluid to said port in a direction approximately tangential to the curve of said seat.

-t. In a flap valve, a spring flap compris ing a curved seat plate and a coiled portion, slotted means for securing one end of said coiled portion, a. seat curved to correspond with said seat plate and surrounding a port normally closed by said plate, and means for conducting fluid to said port in a direction approximately tangential to the curve of said seat.

5. In a tlap 'alve, a. spring flap comprising a curved scat plate and a coiled. portion, two slotted members engaging opposite sides of one end of said coiled portion, means for securing said slotted members in position, a seat curved to correspond with said seat plate and surrounding a port normally closed-b said plate, and means for conducting fluid to said port in a direction approximately tangential to the curve of said seat,

"In testimony whereof I have signed my name to this specification in the presence oi"

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