US 815158 A
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Description (OCR text may contain errors)
. UNITED- sTATEs t PATENT f OFFICE. i
GEORGE GRAHAM" AND WILLIAM LovELAoE, oF noRoHEsTER, VIRGINIA, AssieNoRs or ONE-FOURTH To NOAH CARPENTER, or DoRoHEsTER.
Specification of Letters Patent.
Application led September 16, 1905. Serial No, 278,728.
Patented March 13, 1906.
To @ZZ whom, it may oon/cern:
and eXact specification.
This invention relatesl to that class of 1905, and embodying a metal pocket-flaskhaving its mouth closed by a plug provided with pouring and vent apertures adapted to ,be opened or closed simultaneously by a disk valve pivoted on the plug and having apertures designed toregister in one position of yadjustment with the pouring and vent apertures of the plug. f
The object of the present invention is :to -cheapen the construc-tion -of suchiasks, at vthe same time rendering the manipulation of the valve to open or closethe apertures'of the plug more simple and perfect. A
In devices of this character the end sought is a closure that may be easily and quickly operated by one hand, so that incase-of .an eX- plosionwhile a miner is filling his lamp Ithe flask can be instantly closed by the thumb of the hand that holds the flask, thus preventing access offire toits contents, it following, of course, that the act of-opening the flask to fill a lamp is performed by the thumb of the hand that holds it, thus -leaving the other hand of the miner free to hold the lamp .to be With the objects above stated and others in view our invention consists in the construction and operation to be described the following detailed description, and particularly lset forth in the appended claims.
In the accompanyingdrawings, wherein similar letters of reference are used to indil cate corresponding parts in each of the sevan oil-flask embodying our invention.
eral views, Figure 1 is a perspective view of Fig. 2 is aI top plan view, 'the apertures of the mouth-plug being shown in dotted lines; Fig. 3 is a sectional view. on the line 3 3 of Fig. 2, and Fig. 4 is a top plan view with the valve removed.
The flask is preferably constructed for economy of sheet metal and for utility of oval or flattened form, as shown, so that it may be E conveniently carriedl in the pocket of' the Beit known `that we, GEORGE GRAHAM and WILLIAM LovELAoE, citizens of the United' States, residing at Dorchester, in the county `of Wise and lState of Virginia, have invented certain new and useful Improvements in Oill Flasks, of which the following is a full, clear,
miner, lyingclose to the person and not bulging the pocket unnecessarily. As shown, the body A is formed of l. .two identical blanks stamped or pressed' to proper shape yand united by 'a `lock-.seam to each other and to the bottom. As the blanks from which the lbody is formed are identical in contour, they may' be stamped or pressed in a single mav chine, thus cheapening construction.
To the top of the body A of the flask is secured acceptably by solder a cylindric neck B, within-the upper or mouth end of which is secured a circular plug C, having in the nstance shown at diametrically opposite points near the vperiphery apertures `c and c', the one, c, of the larger diameter being designed v as the opening through which the flask shall be filled with oil and discharged of its contents and :the other, c', being designed as av vent to permit the escape of air during the inflow of oil andthe admission of air to facilitate the outflow of oilv when oil is being dis-- charged from the flask to fill a lamp.
`plug is further provided 4centrally with a tappedbpening c2, the purpose of which will -be presently stated.
To normally close theapertures c and c o f the plug C or to open them for filling of the flask `or for the filling of a lamp, we provide'a `disk valve D, which is to be snugly seated on the plug C at the flask-mouth, as shown. This disk valve D may be made of unyielding metal, so that packing .between it and the plug C -will not be required; but for economy those of the'plug C, the valve being secured to the flask-mouth upon the plug C by a screw-bolt E passing through a central opening of the valve and engaging the tapped opening c3 at the center 4of the plug C, as shown.
It is not essential that the pouring and vent openings of the plug and valve be at diametrically opposite points, though such construction is preferred, but only that the openings be sufficiently distanced apart to permit IOO the pouring of oil from one aperture while the other is open to admit air and facilitate the discharge of oil from the flask.
To cause the openings of the valve D to accurately register with those of the plug C, we provide a stop F, secured to the flask-mouth,
and a lug D on the valve to engage therewith v at the point of rotation of the valve when its apertures are in register or opposite the corresponding apertures of the plug C. As shown, the cylindric neck B of the flask is provided at top or at the flask-mouth with a spring-keeper G, following the circular contour of the flask-mouth, terminating at its fixed end with an outturned or outwardlybent stop F, its free end being provided with a slot g and preferably terminating beyond the slot in a crimped or outturned tongue or ledge g, as shown, to prevent disengagement of the lugs with the keeper through careless handling. In the instance shown the lug D constitutes one end of a thumb-manipulator comprising said lug and a lug D2, distanced from it conveniently to admit the thumb of an operator between them. The lug D2 is provided on its vertical edge facing the flaskmouth and keeper with a spur d3, designed to engage the slot g at the free end of the springkeeper G, thus locking the valve in position to prevent escape of oil from the flask.
As so Vconstructed it will be seen that normally the valve is locked by the spur d3, engaging the slot g of the spring-keeper G in a position to prevent the flow of oil therefrom or the access of fire to the contents of the flask. The operator by grasping the neck of the flask and placing his thumb or finger between the lugs D and D2 of the valve may depress the free end of the spring-keeper G,
thus disengaging the valve from the keeper, when the valve may be freely turned by the thumb or finger of the operator to bring the 4apertures of the plug and valve into register,
so that oil may flow from the flask. Of course a reverse movement of the thumb or finger of the operator to the limit will serve to cause the engagement of the spur d3 of the lug D2 with the slot g at the free end of the spring-keeper G, thus again locking the valve to prevent access of fire to the contents of the flask or escape of its contents.
Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent of the United States, is-
l. A flask com )rising a body terminating in a mouth provided with a plug having vent and pouring apertures, a disk valve seated on said plug and having corresponding apertures, a spring -keeper at the flask -mouth having stops at both its fixed and free ends, and lugs carried by the disk valve to engage the stops of the keeper.
2. A flask comprising a body terminating in a mouth provided with a plug having vent and pouring apertures, a disk valve seated on said plug and having corresponding apertures, a spring-keeper at the flask-mouth iaving a stop at its fixed end and a slot at its free end, and lugs carried by the disk valve to engage the stop and slot of the keeper.
3. A flask comprising a body terminating in a mouth provided with a plug having vent and pouring apertures, a disk valve seated on said plug and having corresponding apertures, a spring-keeper at the flask-mouth having a stop at its fixed end and a slot at its free end, and lugs carried by the disk valve, one of which is provided with a spur to engage the slot of the keeper.
4. A flask comprising a body terminating in a mouth provided with a plug having vent and pouring apertures, a disk valve seated on said plug and having corresponding apertures, a spring-keeper at the flask-mouth having a stop at its fixed end, a slot at its free end, a ledge formed on the free end beyond the slot, and lugs carried by the disk valve to engage the stop and slot of the keeper.
In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.
GEORGE GRAHAM. WILLIAM LOVELACE. Y Witnesses:
C. C. WRIGHT, GRANT ROSE.