US1259317A

US1259317A - Automatic air-inspirator.

Info

Publication number: US1259317A
Authority: US
Inventors: Henry A W Thomasson
Original assignee: Individual
Current assignee: Individual
Priority date: 1917-05-08
Filing date: 1917-05-08
Publication date: 1918-03-12
Anticipated expiration: 1935-03-12

Description

H. AI W. THOMASSON. AUTOMATIC AIR INSPIRATOR. APPLICATION FILED IvIAv`8. 1917.

Fatented. Mm'. l2, MMS.,

-f--A l iran srafrns Parana onirica HENRY A. W. THOMASSON, OF SOUTH BELLINGHAM, WASHINGTON.

AUTOMATIC AIB-INSPIRATOR.

Specication of Letters Patent.

Application filed May 8,1917. Serial No. 167,255.

. ,intake manifolds or conduits -of internal combustion engines, and the objects of the invention are, first, to provide an automatically-closing valve for the manifold and means for regulating the pressure necessary to unseat the valve, and, second, to so assemble the parts that ready access thereto can be had for purpose of replacement and adjustment.

The invention is illustrated in the accompanying drawing, wherein Figure 1 is a vertical section of the inspirator, portions being shown in elevation.

Fig. 2 is a plan view of the valve seat andball receptacle.

Fig. 3 is a cross section on the line 3-3 of Fig. 1.

In carrying out the invention, there is provided a depending air tube 1 having its upper end threaded upon the depending arm of an elbow 2, the other arm of which is provided with an apertured nozzle 3 for breaking up the stream of air, the last mention arm of the elbow being threadedly or otherwise engaged with the wall of an intake manifold l of an engine,'for delivering an auxiliary supply of air thereinto.

In order to automatically control Athe flow of air into the tube 1, a plug 5 is screwed or otherwise engaged into the lower end thereof, and is provided with a wrench-engaging flange 6 bearing upwardly against the lower end of the tube 1.l and enabling the plug to be readily applied and removed. This plug 5 has attached to its upper surface a plurality of upstanding prongs 7 of arcuate cross section, and spacedapart to provide vertical slots therebetween, said prongs being jointly of cylindrical outline and being spaced from the wall of the tube 1. The upper ends of the prongs terminate short of the elbow 2, and the plug 5 is provided with a central air inlet aperture 8 and a concaved valve seat 9 surrounding said aperture between the lowerends of the prongs 7. A

Patented Mar. ia, raie.

ball valve 10 is movable loosely within the c guide or receptacle formed by the prongs, and one or more balls 11 of suitable weight can be disposed within said receptacle to add additional weight to the valve 10. Thus,

there is a column of balls in the receptacle, the lowermost one of which provides a check valve for closing the aperture 8, and said balls can be removed and inserted at will, according to the pressure at which it is desired to have the valve unseat. The lower end of elbow 2 has a notch 12 for permitting air to pass even when the uppermost hall seats against the lower end of the elbow by suction, and the upper ends of the prongs 7 are beveled, whereby the balls cannot lodge thereon accidentally.

The .weight imposed on the valve 10 should be suiiicient tol hold said valve to its seat when the suction is low, such as in starting the engine, and since the weight of the ball 10 may not be sufficient, additional balls l1 can be placed within the receptacle provided by the prongs 7. When the suction is increased, the valve will be unseated by the suction, thereby permitting air to flow through the tube 1 and elbow 2 into the manifold. Any suitable number of balls 11 can be used, as may be found necessary, according to the circumstances. The passage of the elbow 2 is of smaller diameter than the balls, whereby the balls cannot be sucked into the elbow, butwill be stopped by the lower end thereof, which in being provided with the notch 12 permits the air to pass. By unscrewing the plug 5, it can be readily removed with the balls.

Having thus 'described the invention, what is claimed as new is An air inspirator embodying an elbow adapted for communication with a manifold and having a reduced intake port at itspdepending end and notches surrounding said 2 Lawaai?l port, a tube threaded to and depending from In testimony that I claim the foregoing the elbow, a plug threaded in the lower end as my own, I have hereto aIiXed Iny slgnaof the tube and having a central aperture, ture. v

and upstanding prongs of arcuate cross sec- Signed at Bellingham, Whatcom county, 5 tion spaced annularly about the aperture, Washington, April 12, 1917.

and balls reciprocable between the prongs,

the lowermost ball seatable on the yalve seat. HENRY A. W. THOMASSON.