baber/WOPTO huggingface dataset:
Patent GB-291038-A (GB)
Title: Improvements in pressure gauges
IPC: G01L7/16
Filed: 1928-03-07
Abstract: 291,038. Rodero, F., and Monterde, M. March 10, 1927, [Convention date]. Divided on 286,723. Piston-and-spring pressure gauges.-Comprises a hollow cylindrical member 1 within which is arranged a plunger 3 loaded by a spring 5 adjustable by a cover 6 on the member 1, the plunger, upon the set pressure being exceeded, rotating by a rod 9 lever 10 and pawls 12, 13 two ratchet wheels 16, 17 with teeth of different pitch to give the required indication and to remain inoperative if the pressure is not reached. The ratchet wheels are provided with discs 18, 19 distinctively coloured adapted to rotate with them. In use, the cap is screwed down to the required pressure indicated by the scale 7. Momentary rises in pressures which exceed the set pressure cause the ratchet wheel 16 to be rotated but fail to actuate the wheel 17, while when the set pressure is definitely exceeded the wheel 17 is rotated in addition to the wheel 16. Detents 21 prevent reversal of the ratchet wheels. To determine the explosion pressure of an engine to which the gauge is connected, the cover 16 is turned until the wheel 16 only is moved and the scale 7 will give the pressure.
Patent GB-296489-A (GB)
Title: Improvements relating to screens for use in anti-dazzle devices on motor vehicle lamps
IPC: F21S8/10
Filed: 1927-06-09
Abstract: 296,489. Cotton, A., Watts, W. T., and Slingsby, W. T. June 9, 1927. Lantern screws.-In a vehicle lamp provided with a screen movable axially so as to intercept laterally-directed rays from the source of light, the screen comprises a tube clamped between two ring members. The tube may be translucent, coloured, or opaque, and it may be built up from one or more tubes of rigid material, such as glass, or from one or more strips of flexible material bent into tubular form. In the form shown in the Figure, the tube comprises a strip 2 of tissue paper protected on both sides by a strip 1 of mica, the ends of the strips being connected together as by means of wire staples 4. The tube is clamped between two rings 5, 6 by means of rods 11, or the like, passing through the tube. The rods are rigidly secured to the ring 6, or they may pass through holes in the ring and be provided with heads 13. The rods pass through holes in the ring 5 and are provided with threaded ends to receive clamping nuts 12. The nuts 12 has enlarged outer ends adapted to engage bayonet slots for the purpose of connecting the screen to the actuating mechanism. The ring 6 is so constructed as to form a continuation of the surface of the reflector when the screen is, in its inoperative position.
Patent GB-1461785-A (GB)
Title: Alkali metal dithionite manufacture
IPC: C01B17/66
Filed: 1973-03-30
Abstract: 1461785 Alkali metal dithionite BOC Ltd 26 March 1974 [30.March 1973 17 July 1973] 15386/73 and 33969/73 Heading C1A A process for preparing an alkali metal dithionite comprises reacting together formic acid and/or an alkali metal formate, sulphur dioxide, and a basic compound of the alkali metal, all in solution or suspension in aqueous 2-methoxy. ethanol thereby producing the dithionite in the anhydrous form. The sulphur dioxide may be prepared in situ and may be added concurrently or sequentially in either order with the formic acid and/or formate.
Patent GB-1121413-A (GB)
Title: Process for producing 1,2-diaminomethyl cyclobutane
IPC: C07C209/48
Filed: 1967-04-04
Abstract: 1,2 - Diaminomethylcyclobutane is prepared by the catalytic hydrogenation of 1,2-dicyanocyclobutane in a solvent comprising an ether, an ester or an alcohol having not less than 3 carbon atoms. The cis- or transform or a mixture of these may be obtained depending on the isomer used as starting material. Preferably ammonia is also present in the reaction mixture. Suitable solvents are, for example, ethyl ether, tetrahydrofuran, dioxan, anisole, methyl acetate, ethyl acetate, n-propanol, isopropyl alcohol, n-butanol, 2-butanol, tert.-butanol and cyclohexanol.  Suitable catalysts are, for example, those containing cobalt, nickel, platinum or palladium and the process is preferably carried out at 70-180 DEG  C.
Patent GB-964877-A (GB)
Title: Improvements in or relating to electrophotography
Inventor: CASSIERS PAUL MARIA
IPC: G03C1/73
Filed: 1959-04-22
Abstract: A polymeric photoconductive composition contains a polymer as defined below, with or without a sensitiser (as below), a plasticizer (phthalates and phosphates specified), a pigment and/or an agent controlling viscosity, free flow, ageing, thermal stability, oxidation or gloss; the polymer is one having as recurring units <FORM:0964877/C3/1> where A and B are aromatic or heterocyclic nuclei, R is H or alkyl and m and n are 1 or 2. Another photoconductor may be present (monomeric or polymeric) e.g. one as in Specification 964,871 or 964,875 or a reaction product of a halogenated polymer with an aromatic compound (many specified), or of polystyrene with a halogenated carbazole derivative. In the above formula ring A may be benzene or carbazole and B may be benzene, naphthalene, anthracene, carbazole, phenthiazine or quinoline. Suitable polymers are listed, and it is stated that they may be prepared by normal methods in solution or emulsion, initiated by free radicals, ion-formation or radiation. Alternatively monomers, or mixtures of monomers and polymers, can be applied to a support and polymerized, condensed or cross-linked in situ. The group B-CH= may be introduced after polymerization and details are given of the preparation of reaction products of (1) poly-(p-vinyl-acetophenone) with 9-anthraldehyde, N-ethyl-carbazole -2- aldehyde and N-methyl-phenthiazine -3- aldehyde, and (2) poly-(N-vinyl -xacetyl-carbazole) with N-methylphenthiazine -3- aldehyde, in each case in the presence of benzyl-trimethyl-ammonium hydroxide. The sensitiser may be (a) a dyestuff of the di- or tri-aryl-methane, polymethine, azo, azomethine, ketone, phenosapanine, chloranil or phthalocyanine series, (b) a polycyclic compound such as anthracene, phenanthrene, acenaphthene, nitropyrene, chloroanthraquinone or N:N1-dinaphthyl -pphenylenediamine; (c) a heterocyclic compound such as N:N1-pentamethylene -bisbenzthiazole perchlorate; (d) a diazonium salt (several mentioned), (e) iodoform, or (f) one of the sensitisers listed in Specification 964,873. The polymers may be cast on to supports as solutions in benzene, acetone, ethanol, methylene chloride, dioxan, dimethylformamide or glycol monomethyl ether. Examples show the use of the following polymers (apart from those mentioned above): poly-(p-vinyl-cinnamalacetone) and the reaction products of poly-(p-vinyl-acetophenone with 1-naphthaldehyde and with p-dimethylamino-cinnamaldehyde; and, as auxiliary constituents, copolymers of N-vinyl-carbazole with methyl methacrylate, styrene, vinyl acetate, lauryl methacrylate and isopropenyl acetate, and poly-(N-vinyl-carbazole) itself. Poly-(N-vinyl-x-acetyl-carbazole) is made by reacting poly-(N-vinyl-carbazole) with acetyl chloride. Details are also given of the reaction of polyvinyl chloride with fluorene, naphthalene and toluene, and of polystyrene with chloropropylcarbazole.
Patent GB-771688-A (GB)
Title: Vice or jack
IPC: B25B1/10
Filed: 1954-05-25
Abstract: 771,688. Vices. KEMP,' K., W. LEE-. Aug. 25, 1955 [May 25, 1954], No. 15445/54. Class 61 [Also in Groups XXIV and XXX] In a vice wherein one jaw is so moved that the initial clamping pressure is relatively rapidly applied to or released from a workpiece and a final clamping pressure is relatively slowly applied to or released from the workpiece, the operating spindle 3 is provided with two spaced apart threaded portions 4, 5 whose threads are of opposite hand and of slightly differing pitch. The portion 4 having the thread of larger pitch is in screw threaded engagement with the fixed jaw 2, a nut 7 is screwed on the portion 5 which is provided with threads of smaller pitch and a spring 14 or other yielding member is interposed between the nut and the slidable jaw 8 to normally urge the nut and jaw apart. The operating spindle 3 is axially slidable in a bearing 11 in the rear portion 10 of the jaw 8. One end 12 of the nut 7 and the back 13 of the jaw 8 provide the members of a dog clutch, which members interlock and prevent rotation of the nut whenever the movable jaw is obstructed and the nut forced into the back of the jaw. When the members 12, 13 of the clutch are in locked position, one revolution of the spindle 3 moves the jaw. 8 through a distance equivalent to the difference between the leads of the right hand thread 4 and the left hand thread 5. Axial movement of the spindle is effected by the threads 4 when the spring 14 is fully extended.
Patent GB-1067040-A (GB)
Title: Water-insoluble monoazo dyestuffs and process for their manufacture
Inventor: CORNELIUS DIETER
IPC: H01S3/03
Filed: 1966-04-07
Abstract: The invention provides water-insoluble dyes of the general formula <FORM:1067040/C4-C5/1> in which R is a diazo component of the benzene, naphthalene, diphenyl or heterocyclic series, R1 is an alkyl or cyanoalkyl radical, A is an alkylene radical, A1 and A2 are alkyl groups (preferably 1-4 carbon atoms) which may be linked to form a ring, A3 is an alkyl, cycloalkyl, aralkyl, or aryl group and wherein the ring I may contain non-water-solubilizing groups. The dyes are prepared by diazotizing an amine RNH2 and coupling to a compound of formula <FORM:1067040/C4-C5/2> or by esterifying a compound of Formula III with a tri-substituted acetic acid of Formula IV or derivative thereof <FORM:1067040/C4-C5/3> Yellow-red colours are obtained in synthetic materials.
Patent GB-1455514-A (GB)
Title: Method for the treatment of red fish roe
IPC: A23L17/30
Filed: 1974-04-08
Abstract: 1455514 Treatment of roe NEW ENGLAND FISH CO 8 April 1974 [6 April 1973 22 Feb 1974] 15486/74 Heading A2D A method for the treatment of red fish roe to maintain its red coloration comprises impregnating the roe with one or more non- toxic, water-soluble sulphur-containing compounds selected from sulphites, bisulphites, hydrosulphites and metabisulphites. The roe is preferably salmon roe. The roe may be impregnated by contacting it with an aqueous solution of the sulphur-containing compound(s). The sulphur-containing compound may be the free acid or alkali-metal salt thereof. The roe after treatment may be packaged and stored under low temperature conditions.
Patent GB-387895-A (GB)
Title: Improvements in and relating to bowling alleys
IPC: A63D5/02
Filed: 1932-06-01
Abstract: 387,895. Bowling-alleys. LLOYD, R. L., 4506, Colfax Avenue, Minneapolis, Minnesota, U.S.A. June 1, 1932, No. 15570. [Class 132 (ii).] An apparatus for use in a bowling-alley for automatically resetting the pins and returning the balls to the playing end of the alley is adapted, by a single reciprocatory movement of an operating handle or lever to reset the pins in the playing position on the alley floor and simultaneously to deliver to a return gutter the ball or balls playea during the last game. The bases of the pins or skittles 2<1> are provided with magnetic material and are attached to housings 28 by means of springs 27 passing axially through the pins which, in the position shown in Fig. 5, are held down against the tension of the springs by magnets 8<1>. On being struck by a ball the pins are knocked off the magnets and are drawn up by the springs into the housings 28. The housings may be simultaneously lowered or raised by pulling, or pushing a handle at the players' end of the alley, the handle being carried by a bar 23 which moves the housings by means of arms 21, 14 co-operating with guides 9. During the rise and fall of the housings an elevator 8 connected to the bar 23 by a link 22 is lowered or raised so as respectively to receive spent balls from a side channel 5 or to raise them to a return gutter 2 leading to the playing position.
Patent GB-825521-A (GB)
Title: Gas-cooled nuclear reactor
IPC: G21C15/00
Filed: 1946-05-22
Abstract: 825,521. Nuclear reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 22, 1946 [May 29, 1945], No. 15575/46. Class 39(4). A nuclear reactor with horizontal channels is air-cooled. The reactor described comprises a moderator structure of graphite having rectangular channels 12, Fig. 6, for the fuel and for the passage of the cooling air. Fuel elements from the channel 12 are discharged by pushing them through into an outlet chamber 31 where they fall on to padded wood slopes 90 and from there pass through a water chamber 91 and valves 92, 94 to reach a coffin 101. The reactor is charged from a truck 51 wherein fuel elements are held in a shielded sloping channel 64. The loading plunger 54 is driven by a friction wheel 74. A shielding plug 70 covers the loading channel so that partially irradiated elements may be loaded. The truck 51 is mounted on rails so that the nipple 50 on the truck may engage the entry to each fuel channel. The truck and its rail platform are mounted on an elevator platform 56 carried by tracks. The fuel elements comprise slugs of uranium 36 each enclosed in a can 37 of aluminium which is drawn to make intimate contact with the uranium and is sealed by a cup 38 of aluminium. Zinc, stainless steel or lead may be used in place of aluminium. The fuel elements may be loaded to give a rod lattice or may be interspersed with graphite bodies to provide lump loading. By partially loading outer channels a spherical core may be produced. The description is directed to a natural uranium reactor but enriched fuel containing U235, U233 or Pu239 dispersed in U238 or Th232 may be used. The uranium may be present as UO2, U 3 O 8  or as a carbide. Heavy water or beryllium may be used as a moderator. The effects of different impurities are discussed and a table is included showing the neutron absorption of certain materials. The reactor may be controlled automatically or by hand by the insertion or withdrawal of a rod 94 which may consist of a sheet of cadmium affixed to a stainless steel rod, alternatively boron may be used. The use of shut-down rods is mentioned. Although the description is directed to air cooling with exhaustion through a chimney stack the closed circulation of helium is mentioned. In the preparation of the uranium for the slugs a heating process for 10 to 20 hours preferably in argon is described in order to remove occluded hydrogen so that the fuel elements may be operated at temperatures from 400-500‹C. As open to public inspection under Section 91(4) of the Patents Act, 1907- 1946 the Specification described the use of liquid coolants such as water and deuterium oxide. Specification 817,752 is referred to.
Patent GB-155611-A (GB)
Title: Improvements in filtering, decolorizing and purifying processes for liquids and liquors, juices, liquefied bodies and the like
IPC: B01D15/00
Filed: 1919-06-20
Abstract: 155,611. Sauer, J. N. A. June 20, 1919. Purifying saccharine liquids by the action of decolorizing carbon or similar substance. An amount of carbon in excess of what is required for complete purification is used. The same batch of material is then used without regenera- Lion to purify further quantities of the liquid. It is stated in the Specification that the following substances may be used in a similar manner; Kieselguhr, fuller's earth, phosphates, carbonates, sulphates, and sulphites of lime &c. Specifications 7119/02 and 8627/12, [both in Class 90, Non-metallic elements], are referred to in connexion with the manufacture of decolorizing carbon.
Patent GB-601996-A (GB)
Title: Improvements in and relating to compensated electro-thermal relays
IPC: H01H71/16
Filed: 1945-06-19
Abstract: 601,996. Thermal switches. SOC. A R.L. ETABLISSEMENTSBRESSON. June 19, 1945, No. 15618. Convention date, June 9, 1943. [Class 38 (v)] A compensated thermal relay, especially for temporarily locking out a circuit-breaker which has opened as a result of a, short-circuit, comprises an operative Y-shaped bimetallic strip B carrying the main current, a compensating bimetallic strip C, and a third bimetallic strip A which is heated by radiation from strip B. The strips A, B, insulatingly carry co-operating contacts a, b<2> in the circuit of the circuitbreaker closing coil. The strip B also carries a contact b<1> co-operating with a contact c on strip C which is arranged at an angle to strip B to prevent radiation effects, Fig. 2 (not shown). The contacts a, b<2> are normally closed and contacts b<1>, c normally open, but on overload, strip B bends faster than A and contacts a, b<2> separate while contacts b<1>, c close to energize a relay to open the circuit-breaker. When the overload ceases and thermal equilibrium is re-established, b<1>, c open and a, b<2> reclose allowing the closing coil to be energized.
Patent GB-541708-A (GB)
Title: Improvements in damping magnets for electric induction disc meters
IPC: G01R11/10
Filed: 1940-10-24
Abstract: 541,708. Supply meter brakes. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 24, 1940, No. 15627. Convention date, Oct. 24, 1939. [Class 37] A braking-magnet system for an induction-disc meter comprises a pair of blocks 20 of high coercive force material such as " Alnico ", riveted to one limb 22 of a U-shaped yoke of cold rolled steel, the other limb 23 of which is spaced from the blocks 20 so as to receive the induction-disc 15. A shunt 27 of a material of a negative temperature-coefficient of permeability is welded to the blocks 20 and compensates for the increased speed of the disc at high temperatures by shunting less of the flux from the airgaps. Calibration is effected by an adjustable magnetic shunt 28 spaced from the blocks 20 by a non-magnetic liner 34 and having a bevelled leading edge 29 to provide a uniform change of speed. The shunt 28 is moved by a threaded non-magnetic bolt 30 urged against the yoke by a bronze hairpin-shaped spring 33 between the bolt-shoulder 32 and strip 27, the disc 15 being observable, during calibration, through a punched-out window 35 in the yoke, the window having a pointer 36 formed on its edge during the punching operation. The assembly is removable as a unit from the meter.
Patent GB-120752-A (GB)
Title: Improvements in or in connection with Apparatus for Softening and Purifying Water, Metering Fluids or the like.
Inventor: GIBBS GEORGE JAMES
IPC: C02F1/68
Filed: 1917-10-27
Abstract: 120,752. Gibbs, G. J. Oct. 27, 1917. Liquid-meters.-In devices for adding softening reagents to water, measuring the flow of a liquid, and like purposes, comprising a doublechambered tipping-bucket, the chambers of which are filled alternately, means are provided whereby the motion of the bucket is unimpeded at starting, but is cushioned towards the end. For this purpose the bucket 1 is mounted so as to turn freely on a shaft or trunnions 2. Mounted on the same or another shaft so as to be capable of moving independently of the bucket is an arm 5 carrying a hollow chamber 6 at each end. When the bucket tips, a buffer 7 thereon strikes against one of the chambers 6 and forces it under the surface of the liquid contained in the chamber 3, the other chamber being at the same time raised out of the liquid. The chamber which has been depressed is then filled with liquid through openir.gs 12, 14 provided with adjustable covers 13, 15, and the other chamber emptied. In a modification, the chambers are closed and connected by pipes provided with adjustable valves whereby the liquid passes from one chamber to the other. The arm 5 may carry vanes 18 which assist in the cushioning action, and may be connected to stirrers to prevent reagent settling in water-softening plant. A tumbler weight 17 may be provided.
Patent GB-1125544-A (GB)
Title: Erythromycin derivatives
IPC: C07H17/08
Filed: 1967-04-05
Abstract: 1,125,544. Erythromycin derivatives. ABBOTT LABORATORIES. 5 April, 1967 [13 April, 1966], No. 15717/67. Heading C2A. The invention relates to 3<SP>1</SP>-desdimethylamino- #3<SP>1</SP>,4<SP>1</SP>-erythromycins A and B of formula wherein R is hydrogen (B compound) or hydroxy (A compound). The compounds are prepared by heating erythromycin A-N-oxide or erythromycin B-N-oxide under vacuum to a temperature of 150-190‹ C. The compounds are active against schistomiasia infections. A suspension in aqueous tragacanth solution of one of the above compounds may be used for treating schistomiasis in animals.
Patent GB-1463619-A (GB)
Title: High speed programmable counter
IPC: H03L7/183
Filed: 1974-04-10
Abstract: 1463619 Frequency dividing RCA CORPORATION 10 April 1974 [12 April 1973] 15790/74 Heading G4D A frequency divider of the kind comprising a counter 10 counting from a preset value up to a full value repetitively is modified for high speed operation by the provision of an auxiliary counter 11 which begins counting at the start of a cycle and holds the input pulses off of counter 10 while it is being preset. In Fig. 1 the auxiliary counter 11 is a four stage shift register. When the counter 10 issues an output pulse via wired- OR gate 51 a pulse is entered into the first stage of register 11 and is shifted through by the input pulses; while this pulse remains in the register it is detected by a wired-OR gate 55 which holds the first stage A of counter 10 set and the latter therefore does not count. After the first shift stage 32 of register 11 enables NAND gates 41- 44 to apply the presetting signal to the counter; the counter is thus set to the ones complement of the divisor (in binary). Since the first stage of counter 10 is held set, when the divisor is an odd number a value one higher than the ones complement will actually be set in; to accommodate this the lowest order PS2<SP>0</SP> of the presetting signal is instead applied to a setting input of the last stage of the shift register so that when the divisor is even the stage 34 is held set and the pulse is not shifted in. The OR-gate 55 then releases the counter after three shift pulses whereas if the divisor is odd it releases the counter after four pulses. The counter then counts input pulses until it reads 1011 (decimal 11) detected by AND gate 53 and OR-gate 51 when a further output pulse is released. In Fig. 1 a duplicate first stage 20 of counter 10 is shown supplying gate 51; the latter may be fed direct from stage 20 if the latter has twin buffered outputs. The counter may be extended to more than the four stages shown. The frequency divider may be used with a voltage controlled oscillator in a phase locked loop to generate a step-variable frequency as the local oscillator of an F.M. receiver.
Patent GB-235899-A (GB)
Title: Improvements relating to the driving mechanism of air pumps for automobiles and the like
IPC: B60C23/14
Filed: 1925-06-18
Abstract: 235,899. Pedersen, P. C. June 18, 1924, [Convention date]. Pump-actuating mechanism.-An air pump driven off the motor of an automobile is provided with means for holding it out of engagement comprising a pin on the cam actuated piston rod which is engaged by a pivoted arm for withdrawing the rod from contact with the driving cam. The roller 12 on the piston rod 6 is normally held against the cam 9 on the motor shaft 8 by the spring 10. The pump is mounted on a bracket 2 to which an arm 38 is pivotally attached at 39, and is adapted to bear against a pin 22 which is secured to the rod and projects through a slot in the bracket. For disengaging the drive, the arm 38 is swung up to the dotted position 38' and is locked there by the notch 40, the cam roller 12 being thus held free from the cam. The spring 10 instead of encircling the rod 6 may be placed alongside the rod.