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1. 发明专利

GB421492A Improvements in spray devices 未知
公开(公告)号：GB421492A
公开(公告)日：1934-12-21
申请号：GB2298133
申请日：1933-08-17
申请人： STONE J & CO LTD , DONALD ELDER
IPC分类号： B05B1/26
摘要： 421,492. Spray-producers. STONE & CO., Ltd., J., Deptford, and ELDER, D., 49, Russell Square, Bloomsbury Square, both in London. Aug. 17, 1933, No. 22981. [Class 69 (iii)] A spray-producer of the kind in which a wheel is eccentrically mounted on an arm or bracket carried on the nozzle so that when rotated by the issuing liquid it will intermittently obstruct the flow from the nozzle is characterized by the wheel being spoolshaped with a cylindrical hubportion and inclined flanges. As shown in Figs. 1 and 2, the spoolshaped wheel b is eccentrically mounted on an arm c adjustably secured to the nozzle a. The hub of the wheel b is roughened. With spray devices using a plurality of nozzles a plurality of wheels are employed. The wheels may be fitted to a rotary sprayer of the two nozzle type. A scale and index may be provided to facilitate the adjustment of the wheel relative to the nozzle.

2. 发明专利

DE569530C 未知
公开(公告)号：DE569530C
公开(公告)日：1933-02-04
申请号：DEE0039275
申请日：1929-05-22
申请人： DONALD ELDER
IPC分类号： A01G25/16 , G01F15/00

3. 发明专利

GB343797A Improvements in spraying systems and apparatus 未知
公开(公告)号：GB343797A
公开(公告)日：1931-02-26
申请号：GB1037130
申请日：1930-04-01
申请人： DONALD ELDER
IPC分类号： B05B15/10 , B05B15/74
摘要： 343,797. Spraying-apparatus. ELDER, D., 2535, Durant Avenue, Berkeley, California, U.S.A. April 1, 1930, No. 10371. [Class 69 (iii).] A sprinkler system of the kind in which a sprinkler head is arranged below the level of the ground and projected, therefrom by the pressure of the water is so arranged that the nozzle is closed in the retracted position and remains closed until fully projected when it is opened, but is again closed before being returned to the retracted position. AT-piece 2 mounted on a main 1 carries a tubular member 4, within which is slidably mounted a shouldered tubular member 8, a spring 14 being interposed between the shoulder 12 and an inturned flange 6 on the tube 4. Within the tube 8 is a rod 18 carrying at its upper end a valve 17 held against a seat 10 by a spring 21 slightly stronger than the spring 17. The spring 21 bears against an adjusting nut 20 on the rod 16 and an inturned shoulder in the tube 8. A helically grooved collar 19 centres the rod 18 and also gives a swirl to the water leaving the nozzle. In a modification the valve head is provided with a screwed slotted sleeve engaging the upper screwed end of the rod 18, the flange 14 is replaced by a centring pin, and the spring 21 engages a pin passing through the rod 18 which engages slots in the casing to prevent rotation. A strainer may be provided to prevent access of dirt &c. Specification 248,371, [Class 69 (iii), Spray-producers &c.], is referred to.

4. 发明专利

GB248371A Improvements in or relating to spraying nozzles 未知
公开(公告)号：GB248371A
公开(公告)日：1926-07-29
申请号：GB508026
申请日：1926-02-22
申请人： DONALD ELDER
IPC分类号： B05B15/10 , B05B15/74
摘要： 248,371. Elder, D. Feb. 28, 1925, [Convention date]. Jet nozzles; nozzles with cut-off devices.-A spray-producer for giving an even distribution of water over an area of semicircular or quadrant shape so that it may be used at the edge or corner of a lawn to spray the surface missed by a circular sprayer, comprises a closed cylindrical tube 1, Fig. 3, having a V-shaped gap 3 in the side the upper wall 4 of the gap being curved towards its side edges. If a semicircular distribution is required the end of the gap terminates just clear of the bore; if however a quadrant shaped area is to be sprayed the depth of the gap is correspondingly shortened. The gap may first be cut by a rotary cutter into the form shown in Fig. 3 and the corner filled in by metal wedges 6, Fig. 4. The nozzle may be fitted to a ground level valvular spraying device controlled by the water pressure, in which case it extends through a cylindrical casing 7, Fig. 1, screwed in a T piece 8 and has at the top a mushroom valve 19 fitting a seating 9 formed in the casing 7. The inner end of the nozzle screws into a cylindrical nut 10 against which bears a spring 11. The nozzle may also be mounted in a nut to screw on a fixed or rotary standard sprayer.

5. 发明专利

AU1207514B Improved apparatus for spraying gardens, roads andthe like 未知
公开(公告)号：AU1207514B
公开(公告)日：1914-07-28
申请号：AU1207514
申请日：1914-02-05
申请人： DONALD ELDER
发明人： DONALD ELDER

6. 发明专利

GB385777A Improvements in spray devices 未知
公开(公告)号：GB385777A
公开(公告)日：1933-01-05
申请号：GB473132
申请日：1932-02-17
申请人： DONALD ELDER
IPC分类号： B05B1/04 , B05B1/32
摘要： 385,777. Nozzles. ELDER, D., 3, Upper Bedford Place, Russell Square, London. Feb. 17, 1932, No. 4731. [Class 69 (iii).] A nozzle for garden hose &c. consists of a hollow body a, Fig. 1, preferably conical and preferably provided with a spike c for fixing in the ground, formed with a transverse slit d the width of which is controlled by a rotary valve sleeve e with a cut-away part e2. The slit d is made at an angle to the axis of the body a and preferably extends half-way round its circumference so as to give a jet variably subtending any angle from 180‹ to zero. The rotary valve which is operated by a handle l may turn externally on the body a or internally, as shown in Fig. 5. A central valve o may be additionally provided for producing an annular spray.

7. 发明专利

GB468083A Improvements in flushing valves 未知
公开(公告)号：GB468083A
公开(公告)日：1937-06-29
申请号：GB348636
申请日：1936-02-05
申请人： DONALD ELDER
IPC分类号： E03D3/12
摘要： 468,083. Slow - closing valves. ELDER, D. Feb. 5, 1936, No. 3486. [Class 135] [Also in Group XXXII] A flushing valve g, Fig. 1, is lifted from its seat formed on the valve casing a by an unobstructed tubular member or sleeve n which is immediately returned to its inoperative position when the operating handle k is released, the flushing fluid passing through the member n whilst the closing of the valve is retarded by a dashpot d containing a body of fluid isolated from the flushing fluid. The valve g is connected to the dashport plunger f by a stem f passing through a gland i. The sleeve n is actuated by a crank-pin m controlled by the handle k which may have a return spring l. The upward movement of the plunger f is unimpeded due to the opening of a non-return valve o controlling passages o , but is limited by an adjustable screw p mounted in a cover d and concealed by a removable cap q. This screw controls the duration of the flush. The rate at which liquid leaks back into the cap d depends on the clearance o between the plunger f and its cylinder. A pawl r mounted on the sleeve n is held in engagement with one of the ratchet teeth r to prevent a second actuation of the sleeve n before the flushing cycle is completed. A spring-loaded pawl which is held out of engagement with the teeth by an annular recess in the valve face until the sleeve leaves the valve is also shown. The plunger f may be of rubber or leather. Fig. 4, however, shows a metal plunger in which the clearance o is controlled by a dished plate f expanded by a screw p which controls the duration of the flush. In the modification shown in Fig. 6, the plunger fits without clearance in its cylinder, the timing of the flush being controlled by an adjustable screw s which more or less closes openings s . The dashpot cylinder is isolated by a flexible diaphragm s and may contain oil, glycerine, water etc. Any leakage past the valve is shown by a tell-tale pipe t. During the flushing operation any water which has collected in the annular space between the sleeve n and the valve casing a is removed by a syphon pipe t . The inlet b may be shut off after the flushing operation either manually or automatically by a valve-t . In another form, the valve o is replaced by a spring-loaded ball valve and the timing is controlled by a pivotally mounted needle valve. In place of the needle valve a threaded member with a fixed orifice may be used. The valve g may have an additional cup leather below its face h. A spring- loaded detent may be provided to engage notches between the crank-pin m and the handle k so that definite fractions of the full flush are obtained according to the notch engaged. Specification 441,685 is referred to.

8. 发明专利

GB433776A Improved atomising or spray device 未知
公开(公告)号：GB433776A
公开(公告)日：1935-08-21
申请号：GB1688233
申请日：1934-06-13
申请人： STONE J & CO LTD , DONALD ELDER
IPC分类号： B05B7/04 , B05B7/10 , B05B7/12
摘要： 433,776. Spray-producers. STONE & CO., Ltd., J., Deptford, and ELDER, D., 49, Russell Square, Bloomsbury, both in London. June 13, 1934, No. 16882/33. Divided out of 433,857, [Group VI]. [Class 69 (iii)] A spray-producer comprises a body portion a having a recess b furnished with a fine cylindrical orifice c of considerable length in proportion to its diameter. Within the recess is adjustably mounted a baffle d provided with inclined slots or passages by which a whirl is given the liquid. The baffle is centrally perforated and provided with a tube e through which air or gas under pressure is delivered.

9. 发明专利

GB433857A Improved method of and apparatus for aerating liquids 未知
公开(公告)号：GB433857A
公开(公告)日：1935-08-19
申请号：GB170034
申请日：1934-01-17
申请人： STONE J & CO LTD , DONALD ELDER
IPC分类号： B01F3/04
摘要： 433,857. Radial-cylinder gas pumps. STONE & CO., Ltd., J., Deptford, and ELDER, D., 49, Russell Square, both in London. Jan. 17, 1934, Nos. 1700 and 9343. [Class 8 (i)] [See also Groups VI, XXVI, and XXXIV] An apparatus for aerating liquids embodies a pump consisting of eight radial cylinders of which k pumps the water while the remainder k ... k pump the gas. The plungers are reciprocated by eccentric l operating on ring m. The water pump also delivers water to the ring n connected to the cylinders to make the plungers gas tight and lubricate them by the pressure water pad o, Fig. 5. Specification 433,776, [Group XXIX], is referred to.

10. 发明专利

DE527814C 未知
公开(公告)号：DE527814C
公开(公告)日：1931-06-22
申请号：DE527814D
申请日：1930-04-12
申请人： DONALD ELDER
IPC分类号： B05B15/10 , B05B15/74

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