baber/WOPTO huggingface dataset:
Patent GB-416861-A (GB)
Title: Process for the manufacture of halogenated ethanols
IPC: C07C31/34
Filed: 1933-03-22
Abstract: 2 - Dibromochloro - and 2 - dichlorobromo - ethanol-1 are prepared by reducing the corresponding aldehydes or derivatives thereof, such as their acetals or hydrates.  The reduction may be effected by treating the aldehyde or derivative with a metal alcoholate and then with water or dilute acid, the treatment with the alcoholate being effected in the presence or absence of a primary or secondary alcohol or an inert solvent; alcoholates of partly halogenated polyvalent metals, e.g. alcoholates of the type ClMgOR or ClAl(OR)2, may also be used.  Instead of a metal alcoholate, an alkyl compound of a metal or of a metal halide, e.g. ClAl(C2H5)2, may be used.  The products are useful as soporifics.  In the examples: (1) bromodichloro- or chlorodibromo-acetaldehyde is added to a mixture of aluminium ethylate and isopropanol, and the mixture is heated with continuous addition of fresh isopropanol; the product is then treated with sulphuric acid, steam-distilled, and the distillate extracted with ether to recover the halogenated ethanol; (2) bromodichloro- or chlorodibromo-acetaldehyde, or a corresponding acetal or hydrate, is heated under reflux with a mixture of benzene and aluminium ethylate, and then treated with sulphuric acid and worked up as in example 1; the benzene may be omitted, the aldehyde and the ethylate being then heated together to 80 DEG  C. and the product worked up as before; (3) a solution of zirconium tetrachloride in isopropanol is added to a solution of sodium in isopropanol, and the product is treated at boiling temperature with bromodichloroacetaldehyde with continuous addition of isopropanol; sulphuric acid is then added, and bromodichloroethanol recovered as in example 1; (4) an ethereal solution of bromodichloroacetaldehyde is added to an ethereal solution of aluminiumtriethyletherate, and the mixture is warmed, treated with sulphuric acid, and the ethereal layer evaporated to recover bromodichloroethanol; (5) bromodichloro - acetaldehyde is added to a solution of aluminium and a little iodine in isopropanol, and the mixture is boiled, treated with sulphuric acid, and worked up as in example 1; (6) bromomagnesium ethylate (prepared by treating ethylmagnesium bromide with ethanol) is treated in ethereal solution with bromodichloro-acetaldehyde, and the product is treated with hydrochloric acid and the ethereal layer evaporated; (7) a solution of bromodichloro-acetaldehyde in benzene is heated under reflux with aluminium ethylate, and the product is treated with aqueous alcoholic hydrochloric acid and worked up as described above.  Specifications 235,584, 251,890, 286,797, [all in Class 2 (iii)], and 370,490 are referred to.
Patent GB-708727-A (GB)
Title: Improvements in or relating to television and other apparatus employing cathode ray tubes
Inventor: PLAISTOWE DONALD LEOPOLD
IPC: H04N3/185
Filed: 1951-04-13
Abstract: 708,727. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 30, 1951 [April 13, 1951], No. 8711/51. Class 39(1) [Also in Group XXXV] A cathode-ray tube 917, Fig. 2, e.g. in a television receiver has, in addition to the normal electron gun structure 11, 8, 1422, an auxiliary electron gun structure 20, 18, 1422 having similar characteristics and sharing the same anode. The auxiliary electron gun is modulated in opposite phase to the normal gun so that the load on the E.H.T. source and hence the E.H.T. voltage remains constant.
Patent GB-1118030-A (GB)
Title: Metallized pellets
Inventor: BAN THOMAS EUGENE
IPC: C21B13/00
Filed: 1967-02-23
Abstract: 1,118,030. Reducing iron ore. McDOWELLWELLMAN ENGINEERING CO. Feb. 23, 1967, No. 8756/67. Heading C7D. A process for producing metallized layered iron ore pellets having 60-95% of the available iron in the metallic state comprises: - (a) forming a moist blend of the iron ore and a solid carbonaceous reducing agent in an amount at least sufficient to reduce the iron content to metal and optionally a flux (e. g. limestone) and/or a binding agent (e.g. bentonite), (b) forming the moistened blend into pellets (e.g. on a balling disc), (c) indurating the pellets to give a product which is 60-95% reduced in respect of the iron ore (e. g. on a travelling grate machine), (d) coating the undersized pellets with more of the moist blend from (a) above (e. g. in a coating drum), (e) reindurating the coated pellets'to reduce 60-95% of the iron ore and (f) separating the suitable large sized pellets to form the product the undersized pellets being returned to the coating step. The reducing agent is preferably present in the original blend in the range 25-50% thereof and the flux from 5-15% thereof. The pellets are preferably put on the sinter grate with the smallest ones at the bottom and the largest at the top.
Patent GB-556600-A (GB)
Title: Improvements in and connected with electric switches of the push button type
IPC: H01H13/62
Filed: 1942-06-26
Abstract: 556,600. Retractive switches. CRABTREE & CO., Ltd., J. A. MCLOUGHLIN, H. F., HILL, W. E., MORGAN, R. W., and WINTLE, T. D. G. June 26, 1942, No. 8802. [Class 38 (v)] A retractive push-switch with provision for latching in "on" position has a separate spring for maintaining contacts in engagement. As shown a two-diameter push b, with moving contact plate a normally resting on shoulder c is depressed by knob n against pressure of spring o, to bring plate a to contacts f, f'. On rotation of knob through 90 degrees, a cross pin r engages in undercut grooves s. Specification 552,516 is referred to.
Patent GB-485041-A (GB)
Title: Improvements in and relating to screw fans
IPC: F04D29/38
Filed: 1937-03-25
Abstract: 485,041. Screw propellers. GREGSON, P. March 25, 1937, No. 8853. Drawings to Specification. [Class 114] [Also in Group XXVI] Reverse-acting screw-fan blades have the major part of the effective leading surface inclined near the hub at an angle of 40‹ to the plane of rotation, this angle progressively decreasing to an angle of not more than 27‹ at the blade tip. Each half-blade is of streamline section, the blades having a full section at the hub decreasing to an almost parallel section at the tip.
Patent GB-1381275-A (GB)
Title: Cam-operated control devices
IPC: H01H19/62
Filed: 1971-04-06
Abstract: 1381275 Cams; valves; electric switches ELECTRICAL REMOTE CONTROL CO Ltd 30 March 1972 [6 April 1971] 8884/71 Headings F2K and F2V [Also in Division H1] A micro-switch 1, or miniature pneumatic valve (not shown), has a cam follower 6, 7 by which the micro-switch 1 is operated by a cam 2, the micro-switch and cam follower being jointly contained in a resilient plastics holder 3 supported on horizontal rails 4, 5 via an integral resilient hook 14 and a threaded adjuster 18 on the plastics holder 3, whereby the plastics holder 3 may be turnably adjusted for setting and wear adjustment of the unit in service, the resilience of the hook 14 permitting limited turnable adjustment of the holder 3 about a flange 15 of the support rail 5. The adjuster 18 is threadably received in a bag 16 on the holder 3 and seats against a flange 21 of the rail 4, a locking screw 20 serving to lock the assembly in any adjusted position.
Patent GB-669618-A (GB)
Title: Improvements in or relating to ship's and like hatchways and covers therefor
Inventor: GUTHRIE CHARLES GUTHRIE
IPC: B63B19/19
Filed: 1950-04-12
Abstract: 669,618. Hatch covers. M.E.P. CO., Ltd. April 12, 1950, No. 8976/50. Addition to 623,817. Class 113 (i). In a hatch cover assembly according to the parent Specification, the several hatch covers are linked together by means of a U- shaped or hairpin links 45 the respective limbs of which are inserted through holes 47, 48 in the neighbouring side edges of the covers and are trapped within thelatter by a plate 49. Some of the covers have elements of interlocking pin-andslot or like devices on their ends and/or sides which interlock with co-operating elements on the hatch coaming and hatch beams to prevent removal of the hatch cover assembly therefrom except by a sliding movement, and locking covers are inserted or included in the assembly to prevent said sliding movement, means being provided for locking said locking covers to the coaming and/or hatch beams. Specification 637,189 is referred to.
Patent GB-537595-A (GB)
Title: Improved pole-piece assemblies for telegraphones
IPC: G11B5/127
Filed: 1940-05-22
Abstract: 537,595. Nickel-iron alloys. ELECTRICAL RESEARCH PRODUCTS, Inc. May 22, 1940, No. 9066. Convention date, July 13, 1939. [Class 82 (i)] [Also in Group XXXVIII] Pole-pieces are made of a nickel-iron alloy to which a small percentage of molybdenum has been added.
Patent GB-1142241-A (GB)
Title: Electrogasdynamic systems
IPC: B01J19/08
Filed: 1966-03-02
Abstract: 1,142,241. Discharge treatment. GOURDINE SYSTEMS Inc. 2 March, 1966 [3 March, 1965], No. 9127/66. Heading H5H. [Also in Division H2] The working gas in an electrogasdynamic generator (see Division H2) has chemical reactions induced in it by a high frequency, high voltage spark discharge. In operation the working fluid which comprises a gas including a condensable constituent, e.g. saturated steam or air, is introduced under pressure through inlets 18 into channel 13 where it is accelerated in plug nozzle 25 and ionized by the electric field between corona electrode 22 and attractor electrode 32. The fluid condenses in passing through throat 28 and expands through the ion repelling field, produced in area 53 between collector electrode 47 and shield electrode 36, to increase the voltage on electrode 47. Electrode 47 is connected to a discharge device 59 which has high impedance to make negligible current flow between electrode 55 and earthed electrode 57. The voltage on collector electrode 47 rises until a spark discharge occurs to electrode 36 which induces chemical reactions in the working fluid, e.g. producing ozone. Alternatively, the spark may be formed between electrodes 55, 57 to treat gases in space 56.
Patent GB-232222-A (GB)
IPC: B21B31/20
Filed: 1925-04-06
Abstract: 232,222. Deutsche Maschinenfabrik Akt.-Ges. April 14, 1924, [Convention date]. Rolling flanged bars.-In a rail-rolling mill comprising horizontal profiled rolls 2, 3, and a vertical grooving-roll 6, the grooving-roll is mounted in a carrier 7 sliding in guides 5 on a stirrup member 1 cast on the roll standard, and is adjusted by a screw 9 acting through a removable distance-piece 10. The grooving-roll is held firmly against the guides 5 by means of wedges 12 passing laterally through the roll standard.
Patent GB-342944-A (GB)
Title: Sanitary brush
IPC: A46B11/00
Filed: 1930-03-24
Abstract: 342,944. Hair-brushes and scalp massage devices. CROUCH, C. C., Box 194, Hillsdale, and RENKES, G. P., 510, Chamberlain Street, BURKE, J. T., 307, West Marshall Street, and WEDIN, G. E., 26, W. Doughlas Street, all in Rice Lake, both in Wisconsin, U.S.A. March 24, 1930, No. 9305. [Class 19.] A reservoir brush or massage device for applying liquids to the hair is provided with a removable screen 9, Fig. 4, which distributes oil &c. to a perforated stock 10, and so to the bristles or massage elements 31, Fig. 12. The oil &c. is stored in a hollow handle 2, Fig. 2, and passes by a perforated rubber tube 6 to the screen 9. An outwardly bulging body casing 1 has grooves 7, 8 to accommodate the removable screen 9 and stock 10. The stock has a protecting tongue 12, Fig. 2, which guards the rubber tube 6. The stock 10 also has bristle &c. holding bars 13, Fig. 6, and reinforcing bars 14, 15, 16. To prevent displacement of the parts, lugs 18 are provided to engage corresponding sockets in the brush back. Similar lugs can be formed on the screen. An aperture 20, Fig. 2, is formed in the handle for a control device 22 comprising a presser plate 23, Fig. 5, for the tube 6 and a thumb piece 24. Pressure on the thumb piece 24 together with the resiliency of the rubber tube and a curved edge 26 of the control, forces the stem 21 to ride outwardly and give a pumping action to the control so as to force liquid along the tube 6. In a modification the brush parts may be screwed together. In another modification rubber teeth 31, Fig. 12, may be used.
Patent GB-375426-A (GB)
Title: Improvements in rotary or straight-bar knitting machines
IPC: D04B11/22
Filed: 1931-03-27
Abstract: 375,426. Knitting- machines. COTTON, Ltd., W. and RIXOM, A. J., Pinfcld Gate, Loughborough. March 27, 1931, No. 9431. [Class 74 (ii).] A straight-bar machine has two rods D, D1 carrying covers points D4, D5 or like instruments for making clock and like patterns, each rod being capable of endwise movement independently of the other, and one or both being also capable of rocking movement sufficient. to throw its points out of action. The endwise and rocking movement of the rods D, D1 are controlled by jacquard mechanism, the endwise movements preferably being effected as described in Specification 289,169, [Class 74 (ii), Knitting &c.]. Flat surfaces E2 are formed at intervals along one or both of point-bar rocking shafts E and corresponding brackets E4 with pins E5 are provided upon the shaft or shafts. Arms E1 fixed to the rods D, D1 have forked ends E6 embracing the shafts E at the flat portions, so that upon rotation of a shaft E through an angle X as shown in Fig. 3 the flat surface E2 engages the fork E6 and rocks the coverer point D5 from the position shown in full, i.e. in alignment with the needles, to the dotted line position. The rocking shafts, E are rocked automatically by means of droppers controlled by jacquard cards.
Patent GB-698906-A (GB)
Title: Improvements in or relating to apparatus for use in the manufacture of crystal contact devices
IPC: H01L21/00
Filed: 1951-04-23
Abstract: 698,906. Asymmetrical resistances. GENERAL ELECTRIC CO., Ltd., and LINDELL, A. O. E. April 23, 1952 [April 23, 1951], No. 9446/51. Class 37. In manufacturing crystal detectors, the cats-whisker and crystal are brought into contact by slow relative motion derived from an electric motor, and the motor then runs for a predetermined time to bring the contact pressure to the desired value. The catswhisker and crystal are mounted each on one of spindles 4, 5, Fig. 1, and an electric motor 1 through reduction gearing 3 drives the micrometer head 4 until the crystal and cats-whisker make contact to actuate relay 6 which lifts latch 8 to allow collar 10 to rotate with the shaft 2 until arm 11 engages contact assembly 12 to stop the motor. The amount of pressure can be adjusted by rotating wheel 13 which carries arm 11. According to the Provisional Specification, the first relay 6 may stop the motor 1 as soon as contact is established between the cats-whisker and crystal.
Patent GB-486297-A (GB)
Title: Improvements in and relating to tins, cans and like containers
IPC: B65D43/02
Filed: 1937-02-19
Abstract: 486,297. Cans &c. CATT, S. G. Feb. 19, 1937, No. 9490/38. Divided out of 486,218. [Class 66] The plug or lever lid A of a full-aperture can is provided with a loop C, hook, or other abutment under which the end of a lever can be engaged, the lever taking a purchase on the adjacent portion of the rim B. To prise off the lid it is pressed by the hand at a position diametrically opposite to the fulcrum point and flexes in a direction perpendicular to this diameter when pressure is exerted on the lever.
Patent GB-762997-A (GB)
Title: Improvements in or relating to the fat-liquoring of leather
IPC: C14C9/00
Filed: 1954-03-31
Abstract: Leather is fat liquored and rendered water-repellant by treatment with a complex compound of the Werner type in which a trivalent nuclear chromium atom is co-ordinated with a carboxylic acido group having at least 10 carbon atoms.  Such complexes may be prepared by reacting carboxylic acids having at least 10 carbon atoms with basic salts of trivalent chromium having a basicity not greater than 50 per cent.  The basic chromium salts may be formed by reducing a hexavalent chromium compound such as chromyl chloride or chromic oxide with an alcohol which may also function as a solvent for the reaction.  The carboxylic acid may be acyclic, carbocyclic, saturated or unsaturated, acyclic acids being exemplified by capric, undecoic, lauric, tridecoic, myristic, pentadecoic, palmitic, margaric, stearic, nondecoic, and arachidic acids, olefinic carboxylic acids such as decylenic, myristelenic, palmitolenic and oleic, linoleic, linolenic, elaeostearic, clupanodonic acids and carboxylic acids having branched carbon chains in which the total number of carbon atoms in the chain is at least 9.  The acids may be derived from coconut oil, cottonseed oil, soya bean oil, linseed oil, animal fats and oils and fish oils.  Substituted fats and oils such as ethanol palmitamide and alpha-aminostearic acid may be also employed. Typical carbocyclic acids are alpha and beta-naphthoic acids, abietic acid and other aryl carboxylic acids.  Preferred complexes are stearato chromic chloride, oleato chromic chloride, and abietato chromic chloride.
Patent GB-1454691-A (GB)
Title: Games
IPC: A63B63/00
Filed: 1974-03-04
Abstract: 1454691 Device for use in playing games C R SHORTT 4 March 1975 [4 March 1974] 9544/74 Headings A6D and A6H A device for use in playing a game comprises a cylindrical post 3 and a sleeve 5 supportable in a predetermined position by a projection or pip 6. When the post receives a suitable impact (e.g. from a ball projected at the post) the sleeve 5 is dislodged from the projection or pip 6 and falls to rest on the base. Several posts may be used in playing a game and said posts may be coloured for scoring purposes. In alternative arrangements, the base may be provided with a blind bore for supporting the post in which case it is also provided with projections or spikes for insertion into the playing surface. The post may be tubular and the projection for supporting the sleeve may be carried on a lever and project through a slot in the wall of the tubular post so that when the base receives a suitable impact, the lever and consequently the projection carried thereon, is displaced thus releasing the sleeve. A notch may be provided in the lower edge of the sleeve for locating the projection or pip 6. The post may be made from wood or plastics material and the sleeve may be made from plastics material.
Patent GB-610352-A (GB)
Title: Improvements in or relating to order signalling or indicating systems
IPC: G08B9/00
Filed: 1946-03-29
Abstract: 610,352. Selective signalling. GARNER, J. March 29, 1946, No. 9712. [Class 40 (i)] The handle a of a combined order transmitter and receiver sends a succession of pulses to a receiver preferably of identical construction by actuating a switch c through triggers c<SP>1</SP> or c<SP>2</SP> and a toothed wheel b. Two pairs of solenoids f, f<SP>1</SP> are provided for receiving the order at the remote position or for receiving acknowledgment of the order at the transmitter. As shown, teeth b<SP>1</SP> are mounted on opposite sides of the wheel b and each side operates a different trigger c<SP>1</SP> or c<SP>2</SP>. The direction of motion of the handle a determines whether switch contacts c<SP>3</SP> make on fixed segments d<SP>1</SP> or d2 and thus the direction of motion of the receiver pointer. The switch is recentralized after each engagement with the toothed wheel by a spring assembly e. On receipt of a pulse, one solenoid raises a spring-loaded armature which steps around a star-wheel g by means of a pivoted lever l, one of the appropriate pair of solenoids being actuated by alternate teeth on the wheel b to allow each unit of the switch c time to regain its central position. A spring-loaded roller m maintains the star-wheel in position after each impulse. A pointer j carried on a shaft j<SP>1</SP> mounted on the star-wheel g is stepped around by the impulse and spring contacts j<SP>2</SP> and j<SP>3</SP> mounted at the opposite end of shaft j<SP>1</SP> move over circular contacts on the face of wheel b fed from fixed brush b', b<SP>5</SP> to operate an alarm. Movement of handle a into alignment with pointer j aligns contacts j<SP>2</SP> and j<SP>3</SP> with a gap in the circular contacts and stops the alarm bell and at the same time sends impulses back to the sending position to align the pointer j with the handle a there. A spring- loaded roller p acting on a toothed wheel n integral with wheel b maintains b firmly in each position. If a fault develops, alarm bells will continue to ring. Modifications are described in which the order-transmitting levers are provided with electrical or mechanical locking devices to prevent unauthorized or accidental operation and the switch c is fitted with condensers or is oil-immersed to reduce sparking. The solenoid may have fixed polepieces and movable armatures.
Patent GB-288183-A (GB)
Title: Rail lifter
IPC: E01B29/04
Filed: 1928-03-31
Abstract: 288,183. Werdohler Stanz-u. Dampfhammerwerk A. Schlesinger Kommandit-Ges. April 2, 1927, [Convention date]. Jacks. -A jack for lifting rails comprises a baseplate a carrying a rack e and provided' with a double lever c, one end of which has a slotted pivotal connection c<3> to the baseplate, while its other end has a rail engaging foot d. The lever carries an operating handle s adapted to rotate a ratchet wheel h carrying a pinion i, which through a spur wheel rotates a pinion m gearing with the rack. The ratchet wheel is provided with a quick release pawl k. The front surface of the rack is curved and engaged by a guide roller g. By pivoting the lower end of the rack to the baseplate the pivotal connection of the lever may be dispensed with.
Patent GB-1008956-A (GB)
Title: Improvements in or relating to fuelling arrangements for nuclear reactors
Inventor: WILLS STANLEY CHARLES FREDERIC
IPC: G21C19/26
Filed: 1961-03-17
Abstract: 1,008,956. Lifting dogs for nuclear fuel elements. STRACHAN & HENSHAW Ltd. Feb. 9, 1962 [March 17, 1961], No. 9945/61. Heading B8H. A device for enabling a fuel element from which the lifting head has broken off to be extracted from a channel in the core of a nuclear reactor, the device taking the place of the lifting head and being engaged by the normal fuel element grab (not shown), comprises a hollow body 2, Fig. 1, having a flange 22 for engagement by the grab and three depending jaws 4 slidably receiving toothed dogs 10, 12. In operation, the device is lowered by the grab over a broken fuel element 28, Fig. 3, the fuel element fins 26 lifting the dogs 12, 10 as the fuel element passes therethrough. On raising the grab the dogs slide down the inclined surfaces of their recesses 6, 8 to crush the fins and lock the device to the fuel element, the latter thereby being raised.