US1368970A - Thomas i - Google Patents

Description

1. M. ROBERTS AND T. BGVEY.

CUT-OUT VALVE.

APPLICATION FILED ocr. 14, i918.

1 ,368,970, Patented Feb. 15, 1921.

fig/1.

UNITED STATES THOMAS I. ROBERTS AND THOMAS BOVEY, OF CHIOAGO, ILLINOIS.

CUT-OUT VALVE.

Specification of Letters Patent.

Patented Feb. 15, 1921.

Application lcd October 14, 1918. Serial No. 258,028.

To all whom it may concern:

Be it known that we, THOMAS M. ROBERTS and THOMAS BOVEY, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Cut-Out Valves, of which the following is a full, clear, and exact description.

Our invention relates to cut-out valves, and particularly for diverting the exhaust from the internal combustion engine of an automobile into a pipe leading from the discharge pipe thereof to a radiator for heatin the limousine of an automobile.

eretofore it has been customary to make and keep in stock a great number of different sized cut-out valves in order to supply the demand created by their use in conjunction with different sizes of exhaust pipes employed in the different makes of automobiles. Our invention is designed to overcome this objection and to enable a standard cut-out valve to be used in connection with the exhaust pipes of all of the different makes of automobiles.

One of the principal objections to the use of automobile heaters heated by the exhaust of the engines thereof is the accumulation of carbon around the seat of the cutout valve that diverts the exhaust to the heater, which sooner or later makes the valve leaky and renders it impossible to keep the heated exhaust out of the heater and produces a heat in the limousine of the car which in mild weather renders it very uncomfortable.

Another objection, particularly during times when the supply of metal is small and its cost prohibitive, is the necessity of using comparatively heavy castings, which the construction of cut-out valves heretofore employed, made imperative. Our invention avoids this objection and minimizes the amount of metal employed, and greatly reduces the cost of manufacture of the same.

In the following description of our invention and in the accompanying drawings, similar reference characters refer to like parts.

In the drawings:

Figure 1 is a side view of our invention.

Fig. 2 is a transverse section of the same taken on line 2-2, Fi 1.

Fig. 3 is a longitudinal section taken on line 3 3. Fig. 2.

4 is a plan view of the underside of our improved valve.

Fig. 5 is a. transverse section tekenen line 5 5, Fig. 1.

O ur invention is particularly ede for use in connection with the automob' e heater invented by Thomas Bove for which Letters Patent of the United tetes were grauei ed him August 15, 1916, No. 1,194,473. Our improved valve is used 1n the same rel ative position to and is connectedviththl heater in the same manner as set forth in saidpatent, and the means employed yfor erating said valve are substantially same.

The exhaust pipe A-onl a portion of which is shown in the win leads from the gas or internal combustion lengine not shown), and in order to divert a' rtion or all of the heated products of com uetion to the heaterk in the limousine, an elbow B is employed that connects exhaust pipe A to the pipe C that leads therefrom to the heater (not shown).

The entrance end b of the elbow is 910B gated in the direction of length of the el? haust pipe, and is, preferably, rectangular, and its edges are all in the same lane. The entrance opening inclosed by sai edges constitutes the valve-seat; the end thereof neerest the engine is, preferably, semicirculn or rounded. and the edges of said seat are, preferably. rabbeted or beveled. This valve-seat is adapted to be closed by a Het valve D that corresponds in outline to seid seat, and is provided with a transverse lmucf kle d at its rear end, the semiinch'icel sides of which round said end an rollupward into the adjacent valve seat and form a transverse depression, as at as, between the rear end of the valve and the rear end of the valve-seat. The object of this depression a is, when the valve is closed, to enable il heated products of combustion, as they rush past in the exhaust pipe, to create inaction or vacuum, that pulls the products of cembustion, that might otherwise have a tendency to lea-k around the edges of the valve o ut of the elbow into the exhaust pipe,and thus prevent the accumulation of carbon in the valve-seat and on the edges of the valve engaging said seat. In order to more effectively7 accomplish this object, the rear of the valve-seat is provided with a shield E, which latter connects and is made integral with the side-walls of said elbow just Y above said seat and arches over said knuckle,

and when said valve is closed the forward transverse Yedges e of this shield enter a transverse groove f in the upper or inner surface of the valve and prevent the heated products of combustion from 4leaking around the pivoted end Yof the valve into the elbow.

i VThe valve is pivoted by means of a transverse rock-shaft or spindle G which extends through said knuckle and is securedthereto by a set-screw g. This spindle is ,journaled in bearings in the side-walls of the rear end oi' the valve-seat, and one end of said spindle extends through its bearings and has a crank-arm H projecting rearwardly therefrom, the handle k of which has a flexible wire c secured to and leading therefrom by means of which it is moved to open and close the valve.y Y Exhaust-pipe A has a longitudinally elongated opening therein where the flattened elongated end of elbow B is attached thereto.` The elbow is attached to the exhaustpipe very securely by means of' a flexible plate of sheetlmetal K. This plate is, preferably, of a rectangular shape, and it has a central opening` therein for the reception of the adjacent rectangular end of the elbow. When making this. opening, transverse cuts are made in said plate the lengthof which corresponds to the width ofthe engaging endof the elbow, and these `transverse cuts are separated a distance corresponding to the length of the inlet end of the elbow and they are connected midway their ends Vby a longitudinal cut. Y V

The lips I, I, thus produced, are bent upward, and when plate K is attached to the elbow, the rectangular end of the latter is placed between said lips 1, 1, and secured to the same by screws J, J, or other suitable means. The plate is then bent around exhaust pipe A and clamped thereto by clips consisting of metal bands L, L, and bolts M, M. vThe advantage derived from the use of the flexible inetalplate K is that it can bev used to attach thevalve to any sized eX- haust-pipe, and thus avoid the necessity of` trated, as it is possible to substitute equivalents therefor that would answer practically as well. v

What we claim as new is l. A cut-out valve comprising a pipe hav- Ying-anopening therein, van elbow the inlet opening of which constitutes 'a valve-seat through which the bore of said elbow com- VYmunicates with the bore of said pipe, a flexible .plateV of sheet metal having an opening Ytherein the longitudinal edges of which are lflanged upward and secured to the sides of the inlet end of said elbow, and annular clips for securing said plate to said pipe.

2. A cut-out valve comprising a pipe having Va longitudinally elongated opening therein, an elbow the inlet opening of which constitutes a valve-seat and substantially corresponds in dimensions to' said opening through Vwhich it :communicates .with the pipe, and annular, clips for securing. said plate to said pipe. v

3. A cut-out valve comprising a pipe having Y a longitudinally elongated opening therein, an elbow the inlet opening of which constitutes a valve-seat and substantially corresponds in dimensions to said opening Y through which it communicates with the vbore of said pipe, avalve having a transverse knuckle at its rear endand pivotally mounted in the rear endV of said valve-'seat between which latter and the rounded knuckle of said valve there is a transverse depression, a iiex'ible plate of vsheet metal having an opening therein whose edges are flanged upward and secured to the sides of the inlet end of said elbow, and means for securing said plate to said pipe.

v 4. A cut-out valve comprising a pipe having a longitudinally elongated opening therein, an elbow the inlet kopening of which constitutes a valve-seat and substantially corresponds in dimensions to said opening through which it communicates with the bore of said pipe, a valve having a transverse `knuckle at its rear end and pivotally mounted inthe rear end of said valve-seat between whichY latter and the rounded knuckle of said valve there is a transverse depression, a transverse shield formed in and made integral with the rear end of said valve-seat which arches over the inner portion-of said knuckle, a flexible plate of sheet metal connected to said inlet end and adapted to be bent toconform to the curvature of said pipe, and clipsfor securing said plate to said pipe.

5. A cut-cutV valve comprising a pipe having a longitudinally elongated openingr therein, an elbow the inlet opening of which constitutes a countersunk valve seat through which said elbow communicates with said pipe, means for securing said elbow to said piper` and a flat valve the inner surface of which is substantially tangential to the circumference of the bore of the pipe, said valve having a transverse knuckle at its rear end the axis of which is substantially tangential to the outer circumference of said pipe, the edges of said valve being adapted to lit into said countersunk seat and said valve having its rear edge rounded to form a depression between the end and .rear edge of said seat, and said knuckle having its upper segment enter a transverse groove adjacent and parallel with the rear of said seat.

In witness whereof we have hereunto set our hands and seals this 27th day of September, 1918.

THOMAS M. ROBERTS. THOMAS BOVEY.

Witnesses:

FRANK D. THoMAsoN, WILLIAM BEEBE.

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