baber/WOPTO huggingface dataset:
Patent GB-548569-A (GB)
Title: Improvements in or relating to pasteurisation processes and plant
IPC: A23C3/033
Filed: 1941-05-28
Abstract: 548,569. Valves. CROSBY, W. E., MATHEWS, J., and ALUMINIUM PLANT & VESSEL CO., Ltd. May 28, 1941, No. 6835. [Class 135] [Also in Group VI] In the pasteurization of milk &c., particularly by a " short-time " process, in which a flow diversion valve operates at a predetermined temperature to divert underheated milk back to the milk tank or pipe line, means is provided for preventing the resetting of the valve so that it can be left ready for re-operation until after the lapse of a predetermined time delay. The valve may be operated automatically or a warning device may be actuated to indicate that the valve may be reset. As shown in Fig. 2, the valve 8 is raised by a weighted lever 12 on retraction of the plunger 13 of a relay solenoid 14 controlled by a heat-sensitive bulb 7 in the inlet end of a holding section e of a heat-exchanger to divert unheated milk from the cooling sections to an outlet 10 leading back to the pump or the milk tank. The bulb 7 is connected with the Bourdon tube 15 of a temperature recorder 16, the pen arm 17 of which is connected by a link 18 with a bell-crank lever 19 adapted to bridge contacts 20 to close the circuit of a relay solenoid 25 which has a plunger 30 having a contact 27 adapted to bridge contacts 28 to close the circuit of the solenoid 14. The plunger 30 is associated with a dashpot 35 for delaying the opening of the circuit of the solenoid 14 for a predetermined time after the opening of the contacts 20. In a modification, Fig. 3 (not shown) the plunger 13 is connected by a lever with a second spring- loaded plunger adapted, on the fall of the lever 12, to engage an opening therein and lock the lever while the plunger 13 is retracted. A second sensitive bulb may be located at or near the outlet end of the holding section, the arrangement being such that the valve cannot be reset until milk at the desired temperature has passed both bulbs.
Patent GB-334526-A (GB)
Title: Improvements in the purification of sulphur bearing gases and recovery of sulphates and sulphur
IPC: C10K1/00
Filed: 1929-03-02
Abstract: 334,526. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). March 2, 1929. Drawings to Specification. Materials for purifying. - Gases are purified, with the recovery of sulphates and sulphur, by converting the hydrogen sulphide into sulphur by catalytic oxidation, and bringing the hot gases produced into contact with a liquid containing thiosulphates. The cooled gases are passed to a second scrubber and treated with some of the liquor from the first scrubber, and a liquid rich in sulphates and sulphur is obtained. Additions of hydrogen sulphide and ammonia may be made to the second scrubber to give a liquor of suitable composition for conversion into sulphates and sulphur. If the hydrogen sulphide content is low, the gases may be scrubbed with liquid containing ammonium sulphite and bisulphite or polythionate and the liquid obtained, which then contains thiosulphate and polythionate, treated with a current of gas, part of or separate from the first, in which the hydrogen sulphide has been oxidized to sulphur dioxide, which is washed out, in the presence of sufficient ammonia, forming ammonium sulphite and bisulphite or polythionate. This is used for scrubbing the other current. Reference has been directed by the Comptroller to Specification 307,903.
Patent GB-856279-A (GB)
Title: Electrolytic polishing bath and a method of using the same
IPC: C25F3/22
Filed: 1957-03-01
Abstract: A gold-silver alloy comprises on a percentage basis 74.9 parts Au, 6.0 parts Ag, 18.7 parts Cu, and 0.4 parts Cd.
Patent GB-108692-A (GB)
Title: Improved Method of Making Sodium Ferrocyanide.
IPC: C01C3/12
Filed: 1916-05-15
Abstract: 108,692. Boberg, T., and Techno-Chemical Laboratories, Ltd. May 15, 1916. Sodium cyanide and ferrocyanide; barium cyanide.-A solution containing sodium ferrocyanide and sodium carbonate is evaporated at say 80‹ C. until crystals begin to form and is then allowed to cool slowly to about 35‹ C. when the separated sodium ferrocyanide is removed. By further cooling, a mixture of sodium carbonate and ferrocyanide is obtained. The original solution may be obtained by first treating a mixture of barium carbonate and coke with nitrogen in the known manner, lixiviating the mass with water, separating the insoluble matter, and adding sodium carbonate to the solution to precipitate the barium for use again, digesting the solution at about 80‹ C. with finely-divided iron to form ferrocyanide, and passing in carbonic acid to convert the caustic soda to carbonate. The sodium carbonate for precipitating the barium is partly obtained by the second cooling of the solution, and more may be obtained from the final mother liquor by treating it to convert its contained cyanamide into ammonia, when the residue will be mainly sodium carbonate.
Patent GB-559589-A (GB)
Title: Improvements in or relating to collapsible tubular containers
IPC: B65D35/12
Filed: 1942-05-22
Abstract: 559,589. Collapsable tubes. BRUUN, O. J. May 22, 1942, No. 7008. [Class 66] [Also in Group XXII] Nozzles are attached to collapsable tubes formed from soft meta) such as tinned lead by forcing the enlarged base portion of the nozzle into an aperture of smaller diameter provided in the shoulder part of the tube body, the shoulder around the aperture being formed of thicker metal than is usual. Fig. 1 shows the method employed for attaching a nozzle from the inside of a tube. The nozzle is placed over a peg 3a upstanding from the mandrel 3, the tube body being disposed loosely over it with the shoulder lb engaging the threaded capreceiving upper portion 2a; on the descent of the apertured upper die 4 the shoulder is forced over the enlarged tapered base part 2b. In attaching a nozzle from the outside, it is pressed down by an upper die 6, Fig. 3, the tube body being disposed on an apertured mandrel 5. The nozzle bases may be cylindrical, the walls of the aperture instead being of tapered form, and the bases may be grooved or ridged longitudinally or helically, or they may be formed with screwthreads, in which case a turning movement is applied during the assemblage of the parts to enable the threads of the base to cut into the walls of the aperture. The metal of the tube body portion may be heated during the operations. To afford additional security the shoulders may be formed around the apertures with upstanding or depending ridges 1c, 1d, Fig. 21, adapted to be turned as shown over the edges of the nozzle bases or over upper or lower projecting flanges provided thereon. The nozzles may be of metal, synthetic resin, glass, porcelain &c.
Patent GB-236132-A (GB)
Title: Improvements in golf tees
IPC: A63B57/00
Filed: 1925-03-16
Abstract: 236,132. Loyd, C. E. March 16, 1925. Tees.-A golf tee comprises a supporting-pin for insertion in the ground, surmounted by a resilient ball-support consisting of a rubber or like cap formed with resilient prongs, or of an annular brush support, which fits over the upper end of the pin and engages at its lower end against a shoulder formed on the supporting pin. As shown in Fig. 3, the ball is supported on the outwardly-directed fingers 16 of a soft rubber cap 15. The cap fits over a pin 10 as far as a shoulder 13. In a modification, Fig. 4, the tee consists of a cone 23 of bristles secured to the supporting-pin by a rubber ring 24, assisted if desired by glue or cement.
Patent GB-366760-A (GB)
Title: Improvements in or relating to the manufacture of display models or exhibits
IPC: A47F5/00
Filed: 1931-03-07
Abstract: 366,760. Advertising models. MILSON, W. A. and THOMAS, W. B., 40, Mornington Street, Chorlton-on-Medlock, Manchester. March 7, 1931, No. 7132. [Class 3 (ii).] A cardboard or like cut-out model is coated with peanuts by the use of an adhesive comprising a mixture of glue and gelatine. The glue is first dissolved in water and heated, after which the gelatine is added and further heat is applied. The mixture is then poured over the peanuts, and the resulting aggregate is applied to the model, previously coated with size, by means of a trowel. The whole device may subsequently be varnished. Further effects may be obtained by the use of paint, mirrors to represent windows &c., or moving parts such as windmill sails. In forming the aggregate, the following proportions by weight are preferably observed : nuts, 80 per cent; glue, 16 per cent ; gelatine, 3 per cent ; varnish, 1 per cent.
Patent GB-306719-A (GB)
Title: Improvements in or relating to safety devices for motion picture projecting machines
IPC: G03B21/18
Filed: 1928-03-07
Abstract: 306,719. Cohen, J. E. March 7, 1928. Kinematograph apparatus. - In apparatus comprising a cut-off shutter which automatically falls when a lever is tripped by the breaking &c. of the film, auxiliary means is provided which, when the motor current fails or a driving belt brealis, deenergizes a magnet and causes the lever to be tripped. Fig. 10 shows a casing 10 secured above the light cone of a projector, and containing electromagnetic means which, when a lever 22 is tripped by the breaking &c of the film, releases a shutter 20, the parts being constructed substantially as described in Specification 291,946. A casing 25<a> is secured to the casing 10, and contains an electromagnet 26, Fig. 1, having an armature carrying a head 36 engaged on its under side by a lever 38 which also engages the lever 22. The electromagnet 26 holds the parts as shown when energized; when it is de-energized, the head 36 falls, operates the lever 38, and trips the lever 22. Modifications are described in which the armature of the electromagnet is moved by a spring when the magnet is de-energized and directly operates the lever 22. Fig. 10 shows units and circuits as described in Specification 291,946, and the electromagnet 26 is connected by wires 80, 81, 82, Fig. 10, to the secondary of the transformer 73.
Patent GB-292236-A (GB)
Title: Improvements in or relating to strainers
IPC: B01D35/12
Filed: 1927-03-15
Abstract: 292,236. White, A. E., (Andale Engineering Co.). March 15, 1927. Strainers having sheet straining-materials. - The casing of a twin-strainer device has cylindrical chambers 9, 10 for the strainers and chambers B, C for inlet and outlet valves 23, 24 which direct the liquid through' one strainer or the other. Each valve stem 25 is threaded at one end and is moved longitudinally in bearings 27, 31 on rotation of a nut 35. The bearings 27, 31 are interchangeable so that the operating gear may be situated above or below the device. The position of each valve is indicated by the extent to which its stem projects from the casing.
Patent GB-287110-A (GB)
Title: Manufacture of 1-methyl-2-:5-dichloro-4-aminobenzene
Filed: 1928-03-08
Abstract: 287,110. I. G. Farbenindustrie Akt.- Ges. March 15, 1927, [Convention date]. 1-methyl-2 : 5-dichloro-4-aminobenzene is obtained by nitrating 1-methyl-2-amino-5-chlorobenzene in sulphuric acid, diazotizing the amino group, replacing it by chlorine by means of cuprous chloride, and reducing the nitro group. The diazotization may be effected by introducing nitrite directly into the nitration solution and pouring into water.
Patent GB-596319-A (GB)
Title: Electrical musical apparatus
IPC: G10H1/045
Filed: 1945-03-22
Abstract: 596,319. Reproducing music. AXE, E. C. (Hammond Instrument Co.). March 22, 1945, No. 7260. [Class 40 (iv)] [Also in Groups XXXVI, XXXVIII and XL] In order to produce a vibrato effect in electrical musical apparatus aphaseshifting electrical network is interposed between the source and the reproducer and has means for varying the phase of its output at a vibrato frequency. This causes a cyclical change in frequency about the steady note of the source. In the preferred form of the invention the phaseshifting network is in the form of an artificial line 66, Fig. 2, comprising a number of T-sections terminated by a matching resistance R74. The input is received through a switch 46 from a valve amplifier and a series of tappings 83 ... 98 are connected through one of three selecting switches 109, 119, 129 to the fixed plates 141 ... 148, 141a ... 148a of a condenser arrangement having a rotatable vane 149, which repeatedly scans the fixed plates in turn so as to receive signals from the tappings on the artificial line from one end to the other and back. The final output passes through a valve 154 to push-pull output valves 188, 189. The switches 109, 119, 129 cause the scanning of a greater or lesser number of sections and so vary the amplitude of the effect. In one alternative method of picking up the output a contact moves along a resistance tapped across sections of the line while in another method a moving pick-up coil is coupled inductively with the sections. In modified forms of the invention the inductance of the coils is varied at a vibrato rate by mechanically oscillating their dust cores (Figs. 13, 14, not shown), or alternatively the capacity of the condensers is varied by using movable vanes mounted on a common rotatable shaft (Figs. 17, 18, not shown). In further modifications sections of the line are shortcircuited sequentially by a flexible strip, making contact in turn with fixed contacts connected to tapping points (Figs. 19, 20, not shown). Specifications 454,502 and 541,911, [both in Group XXXVIII], are referred to.
Patent GB-722886-A (GB)
Title: Anaesthetics
Filed: 1950-10-23
Abstract: The invention comprises esters of the formula <FORM:0722886/IV (b)/1> in which R is a methyl or propyl group or NR2 represents a piperidine residue, and also inorganic acid salts of these esters. They may be prepared by reacting 2-hydroxy-4-aminobenzoic acid with b -dimethylaminoethanol, b -dipropylaminoethanol or b -piperidinoethanol in the presence of a quantity of a concentrated inorganic acid or an aryl sulphonic acid sufficient to prevent undue decomposition of the substituted benzoic acid; or the substituted benzoic acid may first be esterified in similar manner with ethylene halohydrin and the b -haloethyl ester then reacted with dimethylamine, dipropylamine or piperidine. Alternatively, a salt of the substituted benzoic acid is reacted with a 1-halogeno-2-dimethyl (or dipropyl) amino-ethane or a 1-halogeno-2-N-piperidino-ethane. Again, the esters may be prepared by an ester-exchange process starting with a lower alkyl ester of 2-hydroxy-4-amino-benzoic acid. In examples, (1) 2-hydroxy-4-amino benzoic acid is esterified with ethylene chlorohydrin in the presence of substantial amounts of concentrated sulphuric acid and the b -chloroethyl ester formed reacted with piperidine; (2) the anhydrous sodium salt of 2 - hydroxy - 4 - amino - benzoic acid is reacted with 1-chloro-2-N-piperidino-ethane in ethanol.  Specifications 588,032 and 722,885 are referred to.
Patent GB-434689-A (GB)
Title: Improvements in and relating to screening caps for electric ignition plugs
IPC: H01T13/05
Filed: 1935-03-08
Abstract: 434,689. Sparking-plugs. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. March 8, 1935, No. 7345. Convention date, March 10, 1934. [Class 7 (iv)] [See also Group XXXVI] A screening cap for preventing the emission of high-frequency radiations consists of inner and outer concentric metal sleeves 1, 2. The base of the outer sleeve is hexagonal for passing over the plug gland-nut and slotted to permit subsequent rotation whereby the edges of the sleeve engage beneath the base of the glandhexagon. A screw-cap 5 presses the end of the inner sleeve 1 against the top of the glandnut, the locking effect being improved by the provision of teeth or inclines at the base of each slot 3 for engaging the flats of the gland-nut. The sleeves enclose an insulating member housing a terminal 8, 9 and having a transverse passage 7 in alignment with a nipple 10 supported by edge-slots in the sleeve 1.
Patent GB-658976-A (GB)
Title: Improvements in or relating to the manufacture of cyclo-trimethylenetrinitramine
Inventor: WILLSON FRANCIS GEORGE
IPC: C07D251/06
Filed: 1948-03-10
Abstract: Cyclo-trimethylenetrinitramine (cyclonite) is obtained in substantially pure, granular form from mixtures obtained by nitration of hexamine or hexamine dinitrate with concentrated nitric acid, by adding the nitration mixture gradually and continuously with stirring to water, or dilute aqueous nitric acid, previously heated to and maintained during the addition at between 40 DEG  and 90 DEG  C. in such proportion that the diluted liquor contains 50-70 per cent (by weight) of nitric acid.  A substance such as a metallic nitrite or paraformaldehyde which reacts with the nitric acid at the temperature obtaining to produce oxides of nitrogen may previously be added to the diluting water or acid. Alternatively the decomposition may be initiated by heating the dilution medium before the addition of the nitration mixture to a temperature between 75 DEG  and 90 DEG  C.  In this case the temperature may rise above 90 DEG  C. in the initial stages of the addition but is then reduced and maintained by cooling within the desired range. The diluting agent may comprise 50-70 per cent aqueous nitric acid to which the nitration mixture may be added simultaneously with water in such proportions that the strength of the acid in the diluting vessel remains substantially constant and in a continuous process the volume of the decomposing diluted acid solution is kept substantially constant during the addition of the nitration mixture and water by drawing off continuously a mixture of diluted acid and cyclonite.  In examples: (1) hexamine is added to nitric acid at 20 DEG  C. and the cyclonite mixture is then added slowly to 50.2 per cent nitric acid heated to 50 DEG  C. and to which a small amount of sodium nitrite or paraformaldehyde had been added. The temperature is kept by cooling at 65 DEG  to 75 DEG . After cooling and allowing the mixture to stand the cyclonite is filtered off; (2) as in (1) except that the reaction mixture is added to 70 per cent nitric acid heated to and then maintained at 70 DEG  C.; (3) as in (1) except that water is added simultaneously with the reaction mixture; (4) hexamine is nitrated and the mixture added to water at 87 DEG  C.  The temperature rises initially to 98 DEG  C. and is then reduced by cooling to below 90 DEG  C. and then maintained at 70 DEG to 75 DEG  C.  During the further addition of the nitration mixture water is added at intervals; (5) hexamine is nitrated in a continuous manner at 20 DEG  to 25 DEG  C. and the mixture of hexamine and nitric acid overflows into a diluter filled with 55 per cent nitric acid at 90 DEG  C. and dilution water is fed in to maintain the acid concentration constant while the temperature is lowered and then maintained at 75 DEG  C.  The suspension of cyclonite in mother liquor overflows and after cooling the cyclonite is filtered off and washed with water.
Patent GB-424489-A (GB)
Title: Improvements in and relating to devices for facilitating the marking up of scores atbridge or other games
IPC: A63F1/18
Filed: 1934-04-11
Abstract: 424,489. Indicator for card games. RICHARDSON, S., and RICHARDSON, H. W., 16, Claylands Road, Clapham, London. April 11, 1934, No. 7400/33. [Class 132 (ii)] [See also Group XIX] A score reckoner for bridge and other games comprises a rotatable disc j bearing circular series of calculated scores which are displayed at marked apertures n, m, in the opposite faces of a folded cover d, h adapted to fold down over a scoring - block g held by a tongue in a pocket formed by folding a section c over a stiff base a. The device is made by folding a sheet of thin cardboard divided into quarters c, d, b, h.
Patent GB-1423808-A (GB)
Title: Agricultural tractors
IPC: B62D49/02
Filed: 1974-02-19
Abstract: 1423808 Agricultural tractors; suspension systems VALMET OY 19 Feb 1974 [21 Feb 1973] 7427/74 Headings B7D and B7H An agricultural tractor which is either provided with steerable front wheels 2 or is steerable by pivoting a rear body section relative to a front body section, has on each side of a rear end part thereof a respective undercarriage 20, the undercarriages being pivoted to the tractor body and each having a foremost wheel 7 and a  rearmost wheel 8, a power system being provided to pivot the undercarriages to raise the foremost wheels 7 clear of the ground, the power system being responsive to one or more of the following factors: (a) operation of a manual control, (b) the position of a rear lifting linkage of the tractor, (c) the magnitude of the load acting on the front wheels. (d) the steering angle of the front wheels relative to the rearmost wheels, (e) the position of a control lever for controlling a rear lifting linkage of the tractor. In the embodiment shown, the power system is responsive to the load acting on the front wheels. In the embodiment of Fig. 2 (not shown) the tractor has a lifting linkage (22) carrying a plough (23); when the plough (23) is raised the undercarriages (20) are automatically pivoted to raise foremost spiked wheels (7a) of the undercarriages clear of the ground.
Patent GB-761589-A (GB)
Title: Method of passing elongated structures through liquids
IPC: D01D10/04
Filed: 1954-03-15
Abstract: 761,589. Coating threads, wires, &c. CLEVITE CORPORATION. March 15,1954 [March 18, 1953], No. 7451/54. Class 140. An elongated structure is treated by passing it through a body of liquid in a container having an opening in the bottom portion thereof, a second liquid being provided surrounding the opening, in contact with but immiscible from the first liquid and which does not wet the surfaces of the structure, or of the opening, which provides a free-running fit around the structure, whereby the first liquid is retained within the container without any substantial leakage of either of the liquids through the openings. The threads 13 or wires to be treated or coated pass from spools 12 beneath a bar 17 in a container 14 holding a conditioning liquid 16, upwardly through holes in the bottom 19 of a container 18. The threads then pass radiant heat lamps 32, around a roller 27, and between rollers 28, 29, the rollers 28 being driven by a motor 31 to draw the threads from the spools. The upper roller 29 is adjustably mounted to vary the pressure between the rollers. The container 18 holds a layer of mercury 33, and above this a coating or treating liquid 34 which flows from container 23 and pipe 24 to the container 18. The holes for the threads provide a free-running fit for the threads to limit the escape of liquid. The cooling liquid 34 may be a ceramic dispersed in water or a varnish and the conditioning liquid 16 may be a volatile oil or a solution of ammonium pentaborate. Alternatively the conditioning liquid may be dispensed with if the thread is not wetted or chemically acted upon by the mercury and if the thread takes the coating liquid. When the coating material is a green ceramic, the structure is dried, cut into lengths, and placed in a furnace to burn the thread. When coating with electromechanically-sensitive materials such as barium titanate, as described in Specification 753,618, [Group XL (b)], two threads may be passed through one hole having a central protuberance to produce a structure with two holes for the threads. Specifications 753,617, [Group XL (b)], and 753,619, [Group II], also are referred to.