US 1548956 A
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Aug. 11, 1925.
B. ROSENBERG VENTING DEVICE IN ATTACHABLE POURING SPOUTS 9w P n m r P n s m 0 I IS r e V, my "I a 5p 9 D Filed Aug. 19. 1922 Patented Aug. 11, 1925.
UNITED. STATES BARNEY ROSENBERG, OF JOHANNESBURG, TRAN-SVAAL, SOUTH AFRICA.
VENTING DEVICE IN ATTACHABLE POURING SPOUTS.
Application filed August 19, 1922. Serial No. 582,988.
To all whom it may concern:
Be it known that BARNEY ROSENBERG, a British subject, residing at 98 Marshall Street, Johannesburg, Transvaal Province, Union of South Africa, has invented certain new and useful Improvements in Venting Devices in Attachable Pouring Spouts, of which the following is a specification.
The present invention has reference to attachable spouts for tins. of the kind comprising a. tubular body and a filter arranged therein for the purpose of puritying liquid which passes through the spout. the device being particularly applicable to the filtering of petrol as it is poured, from a tin, into the tank of an automobile.
The present invention is an arrangement in connection with such a spout for admitting air to'the tin to displace the liquid which flows out.
The invention is illustrated in the accompanying drawings in which Fig. I shows one form of spout,
Fig. II is a sectional elevation of the body thereof modified for piercing a tin.
Fig. III shows another form of the spout.
The tubular body of the spout is indicated by 1. lVithin the body is arranged a filter preferably consisting of a long conical bag 2 of chamois leather or equivalent petrol filtering material. Said bag is conveniently mounted upon a conical perforated strainer 3, which extends the mouth 4 of the bag. The filter unit consisting of the bag 2 and the strainer 3 may be frictionally held in place in the body.
The body 1 is suitably formed for attachment to the tin. For example in the Fig. I arrangement it terminates in the annular flange 5 which is internally threaded at 6 to screw onto the standard screw top petrol tin. 7 is' a removable adaptor screwing into the flange 5, and internally threaded at 8 to fit a screw top tin with metric threads, and 9 is a dust-cap screwed into the adapter. In the construction shown in Figs. II and III, the body is continued beyond the flange 5 and cut away to form piercing points 10 and cutting edges 11 by which a hole is made in a hermetically sealed tin; and partial threads 12, which may be pressed out of the body, to engage within the hole thus formed; an external joint being made by a thick washer 13 within the flange 5. To enable the spout to be attached to either sealed or screw top tins which is being cut out of the tin.
the interior of the flange 5 may be screw threaded as in the Fig. I arrangement. When thus used on a screw top tin the thick washer 13 is removed, leaving a thinner washer 14: to make the joint.
The air venting device consists of a pipe 15, one end 16 of which is positioned within or beyond the end of the spout which enters the tin, so that said pipe end itself enters the tin. The other end 17 of the pipe enters the body 1 beyond the mouth 4 of the filter bag 2. The intermediate'length 18 of the pipe is carried along the exterior of the body 1 and leaves the filter mouth 1 free. Preferably several, for instance, three of such-pipes are disposed symmetrically around the body' 1. Owing to the slight resistance of the filter bag 2 to the flow of liquid, the portion 19 of the spout beyond the mouth 4 of the bag is incompletely filled with liquid when the spout is in use. Air can consequently flow from the atmosphere into said portion 19 of the body and so pass through the pipes 15 into the tin. It is evident that with this venting device, eve-n if some petrol flows down the pipes 15, it cannot be lost by not flowmg into the tank; and it is found that at the most a very small quantity escapes being filtered by thus flowing through the pipes.
The inner ends 16 of the pipes are preferably bunched together, as shown; this being found to assist the inflow of air. In the arrangement shown in Figs. II and III the ends 16 of the pipes are stopped at such a position in relation to the cutting edges 11 and the partial screw threads 12, that, when the hole is being pierced in the tin, said ends 16 come into contact with the disc of metal Further penetration of the tin, by thrusting, is thus prevented and the danger of the user forcing the threads 12 through the hole in the tin and so enlarging said hole that the threads cannot engage, is obviated. The severing of the disc of metal is completed by rotating the spout, which causes the threads 12 thereafter to pass through the hole and engage with the tin in the proper manner.
The body of the spout is fitted with a delivery end appropriate ,for its intended use. Thus in the automobile type of spout shown in Fig. I a fairly rigid length of hose 20 is fitted to the end of the body and car.
ries at its end a tubular nozzle 21 which is assed into the filling aperture of the tank. Shaid nozzle is fitted wit a slip-on dust cap 22 held by a chain 23. A'short bar 24 soldered to the nozzle is adapted to en age the slot in the screw cap of the petro fun, to assist in screwing up or unscrewing the same.
The type of spout shown in Fig. III is designed for use when a portion of the contentsof the tin are withdrawn separately from time to time, as is customary with motor cyclists; the spout being left in the tin and being arranged to seal the contents thereof.
' For this purpose the hose is made sufficiently flexible to flatten at 25 when bent as shown thereby closing the outlet, and in order thus to bend the hose, the nozzle 21 is provided with means for holding it against 20 the body of the spout; for instance, its end fits over a pin 26 fixed externally to the flange 5.
A short conical strainer 27 may be fitted in the end of the nozzle to prevent foreign matter from entering the same.
1. An attachablespout for tins consisting of a tubular body, a conical bag of filter material the mouth of which occupies the bore of the body, and a vent pipe a portionof which is external to the body and the ends of which enter the body respectively at the opposite sides of the filter mouth.
2. An attachable spout for tins consistin of a tubular body, a flexible hose attached to the body, a nozzle at the end of said hose. and means to attach the nozzle to the body when the hose is bent and sealed.
In testimony whereof I affix my signature.