baber/WOPTO huggingface dataset:
Patent GB-576835-A (GB)
Title: Improvements in and relating to abrasive compositions
IPC: B24D3/28
Filed: 1943-07-21
Abstract: Grinding-wheels and like abrasive articles are prepared by making a mix of abrasive grains (alumina, silicon carbides, quartz, glass, garnet, diamonds), an aromatic amine-formaldehyde resin and an ester of chloracetic acid with either glycerol a b - or a g -dichlorhydrin, the esters acting as wetting, plasticising and hardening agents.  520 grs. abrasive grain wet with 20 c.c. glycerol chlorhydrin acetate are mixed with 165 grs. of a mixture comprising 55 per cent aniline formaldehyde resin, 30 per cent cryolite, and 5 per cent anhydrite and the mixture is shaped and heated from 95-175 DEG  C. for 2 hours. Specifications 563,124 and 576,881 are referred to.
Patent GB-1148481-A (GB)
Title: Method and apparatus for improved centrifugal analysis
Inventor: JONES MALCOLM HARVEY
IPC: G01N15/04
Filed: 1966-03-18
Abstract: 1,148,481. Centrifugal separators. JOYCE, LOEBL & CO. Ltd. 10 March, 1967 [18 March, 1966], No. 12032/66. Heading B2P. In a method of detemining the size distribution of particles in a mother liquid 'by introducing the particle-containing liquid on top of a spin liquid contained in a rotating disc centrifuge, the sudden change in density across the interface between the mother liquid and the spin liquid is eliminated or reduced, in order to permit uniform sedimentation of the particles in the spin liquid, by providing one or more intermediatelayers of a buffer liquid on the surface of the spin liquid before the introduction of particle-containing mother  liquid, and causing partial mixing of the buffer and spin liquids, the buffer liquid having a density less than that of the spin liquid and equal to or greater than that of the mother liquid. After allowing the particles to spread uniformly under the action of centrifugal force through the buffer and spin liquids and applying a known measurement or sampling technique to interpret the sedimentation pattern, a particle size distribution curve is drawn. As shown in Fig. 5, a disc centrifuge 5, in which the different liquids are introduced, is driven at one of a number of predetermined speeds by means of an electric motor 3 fed with current pulses of controlled amplitude from a control circuit 2. The pulse amplitude of the current supplied to the motor at any instant is determined by comparing the motor speed, fed to the circuit 2 by an electronic tachometer 4, with the frequency of a tuning fork oscillator 8. A switch 7 is provided which, when temporarily closed, causes the control circuit 26 to be by-passed and' full power supplied to the motor 3 whereby the centrifuge is suddenly accelerated to cause partial mixing of the buffer and spin liquids. This condition is observed by means of a stroboscope 6. Alternatively, .the centrifuge may 'be provided with a brake for suddenly reducing the speed by a predetermined amount. The spin liquid may consist of a mixture of water and glycerine or sugar. The buffer liquid may be distilled water.
Patent GB-1292513-A (GB)
Title: Addition of manganese to aluminum
IPC: C22C1/02
Filed: 1970-03-12
Abstract: 1292513 Aluminium, manganese alloys FOOTE MINERAL CO 12 March 1970 [17 March 1969] 12036/70 Heading C7D [Also in Division B2] An Al/Mn alloy is formed by adding to molten Al, Mn having a coating molten at the temperature of the molten Al and containing a potassium fluoride. The coating may also contain chemically combined Al, Ti, Zr, Mn or Na as for example the complexes potassium titanium fluoride, potassium manganese fluoride or potassium zorconium fluoride, or a KF/NaF mixture. KF per se is not suitable. The method may be used to yield the final desired Mn content, or to form a master alloy for later addition to aluminium.
Patent GB-659514-A (GB)
Title: No-draft ventilator window for vehicles
IPC: B60J1/14
Filed: 1949-05-05
Abstract: 659,514. Vehicle windows. RAWSON, L. S. May 5, 1949, No. 12054. [Class 20(iii)] A draught excluding ventilating system for side door windows of vehicles comprises a vertically adjustable rear pane 17 having its forward margin overlapped by the offset rear part 19 of a forward pane 12 which is pivoted at 14, 15 for angular adjustment relative to the window opening. A weather strip carried by the forward edge of the pane 17 forms a seal with a corresponding, and preferably curved, part 20 of the forward pane 12 when the latter is in its closed position.
Patent GB-828258-A (GB)
Title: A process for the preparation of metallic uranium from uranium tetrachloride by fused salt electrolysis
IPC: C25C3/34
Filed: 1957-04-12
Abstract: 828,258. Electrolytic production of uranium. JAPAN, MINISTRY OF INTERNATIONAL TRADE & INDUSTRY. April 12, 1957 [July 11, 1956], No. 12081/57. Class 41. Uranium is produced by electrolysis of a fused bath consisting of a mixture of two or more of the chlorides of alkali metals, alkaline earth metals and magnesium having a melting point below 670‹ C. together with more than 10% by weight of the bath of uranium tetrachloride, said bath having a melting-point below the boiling-point of uranium tetrachloride and being used at a temperature below said boiling- point. As described, the anode is a graphite bar, the cathode is a coiled molybdenum wire and the cell is of heat-resistant, e.g. borosilicate, glass, and contains as the diluent chloride bath a mixture of lithium, sodium, and potassium chlorides.
Patent GB-116805-A (GB)
Title: Improvements in Supports for Devices such as Electric Fans.
Inventor: THOMPSON FRANCIS CHARLES WILSO
IPC: H02K5/00
Filed: 1917-08-23
Abstract: 116,805. Thompson, F. C. W. Aug. 23, 1317. Pedestal stands; brackets.-A support for a fan or other device, which may be set in alternative positions, comprises a foot d having a spherical portion e, the upper surface of which is a plane at an angle of 45 degrees to the axis of the foot and a spherical distance-piece f forming part of the bearing-member a which has a similarly disposed surface. The parts are clamped in the desired position by a bent stud g<1>. Grooves and projections on the plane surfaces serve to lock the parts in the desired positions.
Patent GB-601985-A (GB)
Title: Improvements in or relating to electric counting apparatus
IPC: G01R27/32
Filed: 1945-05-14
Abstract: 601,985. Frequency measurements. STANDARD TELEPHONES & CABLES, Ltd., and EARP, C. W. May 14, 1945, No. 12117. [Class 37] The repitition frequency of awaveform is determined by counting the difference in the number of cycles of a known frequency and the waveform traversing respective paths in a predetermined time interval: Preferably, both paths include frequency dividers and the phase of the outputs of each pair of frequency dividers is compared to indicate the difference in the number of cycles of the two waves. The unknown frequency is applied at S, Fig. 2, and mixed at C with a known frequency from G ; the sum or difference frequency is selected at F and applied over a switch circuit G11 to a train of frequency dividers D11, D12, D14; the known frequency from G is applied over a switch circuit G2 to frequency dividers D21, D22, D24, similar to D11 ... 14, and over a further switch circuit G12 to dividers D11 ... 14 ; switches G11 and G12 are operated from a multivibrator M1 so that when one is open the other is shut ; the two trains of dividers are connected by cathode-ray oscillographs PI, P2, P4 indicating the phase difference between the various stages of the trains of dividers. A start pulse applied at SP1 closes switches G2 and G11, and the oscillographs begin to operate to register the phase differences at various stages of frequency division ; at a predetermined time, e.g. onetenth of a second, a stop pulse is applied at SP2 to open G11 and close G12, thus stabilizing the oscillographs at their instant position. The deflections of the oscillographs indicate the unknown frequency. If the dividers D11 ... D14 and D21.... 24 are designed to divide by ten, the oscillographs P1 ... P4 will indicate frequency in units, tens, hundreds and thousands cycles/sec. respectively. The oscillographs are calibrated by using a standard known frequency in place of the unknown frequency.
Patent GB-560323-A (GB)
Title: Improvements in or relating to vertical flued regenerative coke ovens or gas chamberovens
IPC: C10B21/20
Filed: 1942-08-28
Abstract: 560,323. Coke ovens. KEMP, A. V. Aug. 28, 1942, No. 12138. [Class 51 (ii)] A vertical fluid regenerative coke oven comprises a series of coking chambers 10, Fig. 2, alternating with heating walls 12 having vertical heating flues 15, 15a, Figs. 1 and 2, the heating walls being divided along their length into three or more independent heating- zones connected with independent sets of regenerators for supplying heated poor gas and air or heated air only and also with means for supplying rich gas to the base of the flues. When heating with poor gas, each zone is supplied with gas and air from regenerators 13, 14 or 13a, 14a. The gas and air are supplied directly to the bases of the regenerators and after passing over the checker work 32 enter sole flues 16, 18 or 17, 19 and thence through ports 22, 24 or 25, 26 to the flues 15 or 15a. The combustion products pass from the flues 15 or 15a through ports 42 into a flue 20 and thence downwardly to the flues 15a or 15 and to the regenerators and flues 31 leading to the chimney flue. Gas or air or both gas and air may be admitted to the flue 20 at- 41 to compensate for the heat lost in the flues 15 or 15a. Each regenerator chamber extends the length of the oven battery and is divided by removable transverse partitions 37 into compartments each serving the flues of one coke oven wall. When working with rich gas, all the regenerators are used for heating air and rich gas is supplied to the base of the flues from a main 43 and ducts 45. Galleries 40 are arranged between the sets of regenerators.
Patent GB-257538-A (GB)
Title: Improvements in fire preventing and extinguishing means
IPC: B65D90/42
Filed: 1926-05-11
Abstract: 257,538. Black, W. May 11, 1926. Tanks.-A tank for inflammable liquids is provided with a non-inflammable float, and a liquid spraying device for fire preventing and extinguishing. A tank 1 has a float comprising a casing 3 containing a large number of small glass or other refractory globular and buoyant members 4. The float has a bottom 5, radial partitions (not shown), and a top 6, all of wood. The top 6 is covered with a thin metal sheet 6<a>. The body 9 of the float is made of fine wire mesh which extends in the form of a flange 10 to contact slidingly with the tank wall. Fire extinguishing means comprises a pipe 11 for water &c. with radiating and riser pipes 13, 14, respectively. The pipes 14 pass through bushings in the float 3 and are supplied with heads 16 closed at the top and with outelts 19.
Patent GB-332547-A (GB)
Title: Improvements in and relating to centrifugal governors
IPC: G05D13/14
Filed: 1929-04-19
Abstract: 332,547. Garrard Engineering & Manufacturing Co., Ltd., and Offen, J. H. April 19, 1929. Applied by speed-responsive devices. - In governors for gramophones, etc., the fixed and stationary bushes are provided with abutments which engage slots or notches in the ends of the mexible members carrying the weights. The abutments may flex the members a predetermined amount. In the construction shown in Fig. 1, the weights are mounted on the flexible arms g towards the spindle a. The fixed and movable bushes c, d respectively are provided with angularly disposed abutments f engaging slots h in the arms g which slots are of sufficient length to enable them to be placed over the abutments which are undercut for the purpose. The bushes c, d, have conical extensions k to support the free ends of the members g which pass through slots in the brake disc e. In a modification the free ends of the arms g are notched and engage single slots in the flange f. In the construction shown in Fig. 8, the notched ends of the member g have a four point seating on the flange F on either side of the slots receiving the members. The conical members may have flats to increase the support for the free ends of the members g. In a modification, Fig. 11, the masses are arranged away from the spindle a, the bushes c, d have undercut or notched abutments f, a conical extension k, and flanges or rings m are provided. The abutments may have angularly disposed surfaces to engage the upper surface of the members g to flex them when the governor is idle.
Patent GB-854629-A (GB)
Title: Pipe coupling
Inventor: HART JESSE
IPC: F16L23/10
Filed: 1958-04-17
Abstract: 854,629. Pipe joints. ROLLS-ROYCE Ltd. April 6, 1959 [April 17, 1958], No. 12290/58. Class 99(1). [Also in Group XXV] In a coupling for pipes 1, 2 having radial flanges 5, 6 adjacent the ends thereof and forced axially into abutment by a clamp 18, the flange 6 has a radially extending annular recess 7 which forms with the flange 5 an annular gap 11 housing a sealing ring 12, that recess extending to the interior of the flange 6 and being such as to provide thereon a peripheral, axially extending, annular abutment 8 which contacts the flange 5 to limit axial movement of the flanges towards each other under the action of the clamp, the flange 5 being provided with a locating portion 9 to receive and locate the abutment 8 to assist axial alignment of the pipes. As shown, the flanges 5, 6 are chamfered at 14 to assist the separation thereof, and an inspection hole 15 in the abutment 8 permits testing for the presence of the sealing ring. The flange 5 may have annular abutment 13.
Patent GB-542970-A (GB)
Title: Improvements in oscillation generation systems
IPC: H01J25/06
Filed: 1940-07-29
Abstract: 542,970. Electron oscillators; resonators. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 29, 1940, No. 12309. Convention date, July 28, 1939. [Classes 39 (i) and 40 (v)] An oscillator consists of a concentric line resonator 2, 3 through which an electron beam passes and is velocity modulated at the gap 4 ; a horn 31 radiates from the gap formed between the end 21 of the tube 2 and the outer line 3. An iris diaphragm may be used to limit the radiation. The tube 2 is of a length corresponding to a ¢ wave or multiples thereof. An arrangement is described of a resonator with closed ends and two gaps of unequal length.
Patent GB-1172192-A (GB)
Title: A New Dye of the Anthraquinone-Carbazole Series and its Production
IPC: C09B5/28
Filed: 1968-03-14
Abstract: 1,172,192. Anthraquinone-carbazole vat dye. BADISCHE ANILIN- & SODA-FABRIK A.G. 14 March, 1968 [16 March, 1967], No. 12321/68. Heading C4P. A vat dye is prepared by reacting a chlorinated anthraquinone compound of Formula I in which n is 1-3 with 4-4À5 moles of α- aminoanthraquinone followed by a carbazolation in an aluminium chloride melt at 60- 140‹ C. preferably in presence of a nitrogenous organic compound, a finely divided metal and an organic reducing compound to give a dye of Formula II The dye gives yellowish khaki shades.
Patent GB-1095255-A (GB)
Title: Improvements in or relating to taps for producing internal threads of great pitch
Inventor: HARALAMPIEV ILIJA STOILKOV
IPC: B23G5/06
Filed: 1965-03-23
Abstract: 1,095,255. Taps. NAUTCHNO-IZSLEDOVATELSKI I PROEKTNO-KONSTRUKTORSKI INSTITUT ZA METALOOBRABOTVASHTI MASHINI I INSTRUMENTI. March 23, 1965, No. 12337/65. Heading B3N. A tap has an even number of lands so placed that successive teeth 1, 2, 3, 4 etc. have differently shaped cutting edges. All of the teeth on cutting lands 1 and 3, have cutting edges in the centre of the teeth, and each of the teeth on lands 2 and 4 have cutting edges at both ends. The height of the teeth on land 1 is greater than those on land 2, and the height of the teeth on land 3 is greater than those on hand 4.
Patent GB-952872-A (GB)
Title: Improved recording system
IPC: G11B15/67
Filed: 1960-04-07
Abstract: 952,872. Magazine tape-recorders. MINNESOTA MINING & MANUFACTURING CO. April 7, 1960 [Sept. 2, 1959], No. 12404/60. Heading G5R. A machine loadable with a stack of nesting single-reel cassettes, of the type described in Specification 952, 871, has automatic cassette-feeding and tape-threading means which provide an analogue performance to a sequential-access gramophone record-changer. One or more cassettes 63 are pressed downwardly into a magazine 38 over a loading-post 17 containing a rewind drive shaft 20, engageable with the top-most reel by detents 22, 23. A platform 26 and spring 27 and associated latching mechanism (Fig. 1B not shown) successively raise the cassettes to playing level. This slides the threading mouse 71 over a member 35 on the end of a leader tape 36 attached to a take-up reel 11. Each reel drives contacting gears 258, 261, and contacts 262, 263 are timed to be made when the take-up drive has lodged the mouse 71 in a recess in the take-up reel 11. This engages clutches which drive a capstan 10 and actuates solenoid means controlling a pinch-roller 110. The imminent end of the tape is sensed by contacts 264a, 264b, which, owing to the differential tape built-up on the reels are in engagement only when a tape, whatever its length, is fully wound or unwound. A motor-driven indexing/switching means (Fig. 6 not shown) starts a fast rewind drive which is disengaged when rewind is nearly completed by the re-making of contacts 264a, 264b. The drive is then completed at low speed and halted when the mouse 71 is fully home in its cassette whereupon contact means (Fig. 1C not shown) halt the drive and release the next cassette from the magazine. When the last cassette has been played and rewound, the rising platform 26 operates contact means to switch the machine off. Recording as well as playback by a head such as described in Specification 949,174 are provided for, and means are provided whereby whole cassettes may be rejected before play and any tape may be forward or back-spaced to find particular recording on part of the tape. Under these circumstances, the contacts 264a and 264b provide safety end-stop protection. When a desired part of the tape has been found, the machine resumes automatic action.
Patent GB-264714-A (GB)
Title: Improvements in and relating to stopping devices for electric lifts
IPC: B66B1/44
Filed: 1926-05-14
Abstract: 264,714. Mair, J. May 14, 1926. Apparatus fitted to lifts. - In electrically actuated lifts which are stopped by the action of a ramp mounted on the side of the cage on a switch mounted in the well, the position of the ramp is varied automatically according to the load carried by the cage. The ramp j is slidably mounted in a guide l and is suspended by a link k from a member h pivoted at f to a bracket on the top of the cage. A pin d at the end of an arm e of the member h is maintained in contact with and caused to deflect the hoisting rope b by a spring g. The amount of deflection of the rope b, and consequently the position of the ramp j, varies with the load in the cage, which may be indicated by a pointer m and scale n. The movement of the pointer m may also be transmitted by controls p to an indicator within the cage.
Patent GB-881284-A (GB)
Title: Improvements in pallet loading mechanisms
IPC: B65G57/00
Filed: 1958-04-18
Abstract: 881,284. Pallet loading machines. BOLT, W. N. July 17, 1959 [April 18, 1958], No. 12448/58. Drawings to Specification. Class 94(1). The subject-matter of this Specification is substantially the same as that described in Specification 881,283, but the claims are concerned with the mechanism whereby an empty pallet is removed from the pallet magazine. Specification 881,285 also is referred to.
Patent GB-703183-A (GB)
Title: Automatic feed weigher for good of all kinds, in particular for coal dust
IPC: G01G13/24
Filed: 1951-05-28
Abstract: 703,183. Automatic feed weighers BERGWERKE ESSEN-ROSSENRAY AKT.-GES. May 28, 1951 [June 10, 1950], No. 12458/51. Class 143 [Also in Groups XIX and XXXII] An automatic feed weigher has a rotary compartmented weighing receptacle which is freed to rotate on disengagement of a catch mechanism by an auxiliary control device operated by movement of the weigh beam. The beam 14, pivoted at 15, supports an adjustable counterweight 17 and a rotary compartmented drum 12 which has resiliently secured thereto a catch plate 18, co-operating with a latch member 20 on a counterbalanced lever 21 pivoted at 22, in such a manner that downward movement of the member 20 allows the drum to rotate through 90 degrees, whilst, during weighing, the beam 14 and lever 21 constitute a parallelogram guide linkage for the drum. A lever 26, mounted on a fixed pivot 27 and resting on a fixed projection 28, co-operates with studs 25 on the drum to prevent reverse rotation. When the drum contains a predetermined amount of material, nozzles 29, 32 are aligned, and compressed air, continuously fed through a pipe 30 to nozzle 29, enters nozzle 32, so moving a diaphragm 34 downwardly until, through an abutment 36, it pivots lever 21 and so disengages member 20 from plate 18, whereupon the drum 18 revolves. This downward movement of lever 21 is transmitted through a link 38 to nozzle 32 which then swings, about a pivot 33, out of alignment with nozzle 29, so allowing diaphragm 34 to contract, and arm 21 to rise. A spring 40 and dashpot 42 (see Group XXXI) control return movement of the nozzle 32. The pulses of compressed air are also communicated to diaphragm chamber 56 through a pipe 55 which, like outlet pipe 58, has an adjustable constriction to restrict flow through the chamber to such an extent that the position of the diaphragm tensions the spring 57 in accordance with the rate of operation of the weigher, and thereby compensates for any inaccuracy due to suspended material. The cylinder 45 also receives the pulses of compressed air through a pipe 44, and a piston in this cylinder communicates these pulses through. a rack and pinion 46 to a counter 47; and through a rack and pinion 48, and a threaded rod 49, to a nut 50 bearing a stylus 51. The nut 50 is rotatable, and is in frictional contact with a constantly rotating cone 53 which returns the stylus to its initial position during the interval between weighings. A spring 43 is provided to stabilize the beam. In a modification (not shown) the movement of the beam is sensed by a mercury switch energizing an electromagnet which replaces the diaphragm 34.
Patent GB-200630-A (GB)
Title: Improvements in steam-engine distributing valves
IPC: F01B25/00
Filed: 1922-05-03
Abstract: 200,630. Moore, F. J. May 3, 1922. Rotary and oscillating disc valves.-The valve has two faces with through ports m, m<1> and works between a seat b and a flat self-adjusting plate c provided with balancing-pistons d, e, f. The seat has a pair of radial ports g, g<1> for each cylinder end, and the plate c corresponding recesses. Steam is supplied centrally to annular and radial recesses k, l past upper and lower edges of the valve and ports m, m<1> to the ports g, g<1>, the exhaust from which to the chest is controlled by the outer surface of the valve.
Patent GB-1214592-A (GB)
Title: Improvements in or relating to cationic polysaccharides
IPC: C02F1/52
Filed: 1969-03-10
Abstract: 1,214,592. Cationic polysaccharides. GENERAL MILL Inc. 10 March, 1969 [15 April, 1968], No. 12536/69. Heading C3U. A cationic Xanthomonas microbial gum is produced by the reaction of a quaternary ammonium compound and a microbial gum obtained by the aerobic fermentation of one or more carbohydrates with a bacterium of the genus X anthomonas. The quaternary ammonium compound preferably has the formula wherein R 1 , R 2  and R 3  are alkyl, substituted alkyl, alkenyl, aryl or aralkyl or R 1  and R 2  together with the nitrogen atom to which they are attached may be joined to form a ring, R 4  is a divalent alkylene group having 1-3 carbon atoms and Z is an anion.