Патент USA US2121878код для вставки
June2s,193s.' ' M. LOCKER - I 2,121,872;v CASTER FOR SUGAR OR OTHER GRANULAR OR POWDERED SUBSTANCES Filed March 18, 1956 — J ?/ AH: _ T? m i! . > It lf/zjl I @IZ. Inventor .‘ Patented June 28, 1938 2,121,878 > 2,121,878 I ic-AsrEnFoR-sUGAR on OTHER Gasman ~ __-'0RPOWDERED'SUBSTANQES w ’ H illlaui'icejvlllpcker, Manchester, England ’ Application March 18, 1936, 1Serial=No. 69,483 I I In Great Britain -March 30,1935 ‘ 3v Claims. This invention relates to a caster forsugar or other granular or powdered substance, such as salt, coffee, etc. . The ordinary sifter or caster has certain- dis advantages, for example, the quantity delivered is inde?nite (being dependent upon the size of grain, its dryness and the size' of apertures which are difficult to judge), and the delivery is very distributed and by‘ its construction its use is 10 limited to that for whichit was made, i. e., for sugar or for salt respectively. The object of the invention is an improved caster which is simple and e?i'cient in operation, is free from the above stated disadvantages and has a Wider range of utility. According to the invention, the improved caster comprises a holder or container having a delivery nozzle with synchronized masked inlet and outlet valves therein, so that the body of the nozzle 20 constitutes a measuring chamber. In the accompanying drawing-— Figure 1 is a longitudinal vertical sectional view of my improved caster. Figure 2 is a sectional view of a modi?ed form of the caster. As shown in Fig. 1, the improved caster com prises a glass jar-like body a tapering at its lower end to‘ a nozzle ‘in which is ?tted the delivery nozzle 1)‘. At its upper end the jar is provided (Cl. 221-114) _ their raised position when the upperuvalve disc will be above the ?ange e of the valve body. ’ Sugar or other content of the container may then ?ow into the chamber of. the valve body b, the conical shape of the valve 7' and of the ?ange e 5 acting to direct the ?oW of the same. To obtain a delivery of the sugar the knob d is depressed, which operation may be performed by one ?nger of the hand in which the caster is held; The ?rst movement of the valves brings the edge of the upper valve disc 7' within the body b, of the nozzle before the lower disc 1' leaves the same. Further movement of. depressing the knob brings the lower valve 2' beyond the end of. the nozzle 19 when the sugar which has collected between the two valve discs ?ows out over the lower conical valve 2'. When the knob is released, the valves rise and sugar again ?ows in under thev upper valve disc to ?ll the chamber of the nozzle. The ’ caster above described delivers about half a tea spoonful of sugar. at each operation, and the whole contents of the container can be emptied without difficulty. The container is easily ?lled by removing the ' screw top. ' The upstanding lugs g act to locate the return spring and also as a guide for the upper‘ valve disc 7' so that the valve rod will stand centrally While the cap ‘is removed‘for ?lling the container. ‘ with a screw capv 0 having a central hole through By varying the diameter of the spacing collar which projects the knob 11 of the delivery valve described below. The nozzle b‘ is cylindrical in shape, having a or both the length of the collar and nozzle, the g conical ?ange e adapted to rest on the inside of the glass body and screw-threaded on its outside for a clamping nut f. ' Above the flange and sur rounding the central bore of the nozzle are three upstanding guide lugs g. The bore of the nozzle which is about % inch long by % inch diameter 40 is slightly enlarged at each end for about 1% inch of its length, forming seatings or stops, h, h1 for the valves. The valve consists of two conical washers i and a‘ separated by a distance piece It about % 45 inch long-the three parts being mounted on a quantity of material which is delivered may be , adjusted as may be required. ,The diameter‘of - the valves and nozzle may also be varied for the purpose. 7 _ 35 In combination with the sifter is a stand q in which the caster may stand or there may be pro vided a depending flange ‘r as shown in Fig. 2 formed as an extension of the glass body a and‘ on which the caster may stand, on a table. One 40 same advantage of the separate stand q is however, that any small quantities of sugar which pass the valves due to vibration or accidental operation of the knob or other cause are collectedtherein and may be returned to the container. For such gs 5 purpose the stand is preferably made so that the the knob dwhichprojects through the hole in end of the container ?ts therein su?-lciently closely to protect any sugar therein from the access of the cap 0. A return spring 0 is provided of the coiled type ?ies or from other contamination. Also the end adapted at one end to’ encircle the three guide . of. the screw Z may be extended to engage the lugs'g above referred to, and having its other well of the stand q so that the knob cannot be ‘ end bent across diametrically to pass through a depressed until the caster is lifted. As already explained, the caster may be used small hole p in the» tubular rod m. In operation, thev spring 0 holds the valves in l'or salt, tea, coffee or any other suitable com 55 screw 1 which screws into the end of a tubular rod m. Onthe upper end of the rod m is secured 2,121,878 modity beside sugar, and is, therefore, a very useful domestic utensil. What I claim is:1. A caster comprising a container having a cylindrical outlet passage, an annular inwardly projecting ridge in said passage intermediate of tion, 'both the ‘valve-‘like ‘members are within their respective ends of said passage. 2. A caster according to claim 1 characterized by a stand having a recess adapted to receive and enclose the lower end of the caster, on which end is formed the outlet passage, the bottom of the its ends, and a measuring :and delivery valve asso recess being just lower than the end of the valve ciated with said passage, comprising two valve rod when the caster is supported in the stand with the valves in their raised position, the bottom of. like members spaced apart on a rod, and both of equal diameter, just smaller than the internal diameter of the passage, but greater than that of the ridge, said members being spaced apart by a distance less than the length of the passage but greater than the distance from either end of. the passage to the side of the ridge furthest from such end, the ridge constituting a stop de?ning the limit of movement of the valve members in both directions, and so that, in an intermediate posi the stand thereby acting as a stop to prevent 10 opening or downward movement of the valves. 3. A caster according to claim 1 characterized in that the valve-like members are detachably mounted on their rod and separated by a detach able distance piece which determines their spac 15 ing apart. MAURICE LOCKER.