baber/WOPTO huggingface dataset:
Patent GB-426730-A (GB)
Title: Improvements in and relating to the excitation control of generators in ward-leonardsystems
IPC: H02P7/34
Filed: 1933-10-09
Abstract: 426,730. Automatic regulation. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl- Ufer, Berlin) Oct. 9, 1933, No. 27793. Convention date, Oct. 8, 1932. Addition to 412,433. [Class 38 (iv)] [See also Group XXXVII] In a system for automatic excitation control of a Ward Leonard generator a according to the parent Specification, a controller g is provided at the individual positions of which varying amounts of the resistance m<1> are connected in parallel with the anode circuit of the control discharge device n<1>, and different tappings of a voltage divider q connected across the generator armature, are connected to its grid. An initial opposing voltage from a battery o<1> may be applied to the grid of the discharge device n', and an initial voltage may also be applied to the grid of the discharge device e<1> through which the generator field is supplied.
Patent GB-950393-A (GB)
Title: Fused cast refractory and method of making
IPC: C04B35/12
Filed: 1962-07-19
Abstract: Fused cast refractories are obtained from a batch containing by weight 40-78% MgO, 4-58% Cr2O3, up to 33% Al2O3, up to 14.5% FeO, up to 4.5% SiO2, up to 10% CaO the total of these oxides being at least 87%, which is melted and cast and has incorporated therein by addition to the batch or melt 0.03-7% by weight of fluorine.  The fluorine is added in combined form e.g. cryolite and the fluorides of sodium, aluminium, calcium, magnesium, barium and strontium. Specifications 265,847 and 724,980 are referred to.
Patent GB-1125304-A (GB)
Title: Improvements in tables having extendable tops
IPC: A47B1/02
Filed: 1966-06-22
Abstract: 1,125,304. Tables. C. S. BROAD. 15 May, 1967 [22 June, 1966], No. 27834/66. Heading A4H. In an extendable table top having two main sections 3, 3 which are moved simultaneously by racks 26 and a pinion 15, a central section 4 is raised into the gap between the main sections by four levers 27 which are actuated by coiled springs 29 or by weights (not shown). The levers are pivoted about horizontal axes on the frame of the table and their inner ends engage under the corners of the central section. Pivoted metal tabs 31 on the central section can be set to project outwardly therefrom to abut the undersides of the main sections 3, 3 and thus align the central section with the main sections. The three sections have tongues 5, 8 and grooves 6, 7 which are slid into engagement; alternatively dowels and holes are provided. The main sections 3, 3 have grooved runners 16 which slide in guides formed by spaced inverted L-shaped members 22 secured to the frame. Locating blocks 34, 34 and bars 33, 33 prevent longitudinal displacement of the central section relative to the main sections.
Patent GB-519093-A (GB)
Title: Improvements relating to beer or like pumps
IPC: F04B9/14
Filed: 1938-09-26
Abstract: 519,093. Engine and like crossheads. GASKELL & CHAMBERS, Ltd., and WEIGHTMAN, J. S. Sept. 26, 1938, No. 27963. [Class 122 (i)] To facilitate cleansing, and to prevent interference of the working action due to warping of wood, the piston rod 12 of a bar engine is attached to a crosshead 11 which is guided by a rod 17 -formed on or attached to the end cap 14 of the cylinder 5. As shown the rod 17 is screwed into the cap and secured by a nut 18. The rod is preferably of circular crosssection, but it may be formed with flat sides to receive a spanner. The piston rod 12 passes through a stuffing-box 13 on the cap, and is provided with a conical head 27 secured to the crosshead by a gland nut. The crosshead is formed with an extension 23, 24 having an aperture which slides on the rod 17, and a lubricant passage 25. The crosshead is preferably operated by a single link 10 connected to the crosshead by a forked member 19 and a pivot '21 passing through a lug 20 on the crosshead.
Patent GB-1472722-A (GB)
Title: Manifold system
IPC: F02M31/08
Filed: 1975-07-03
Abstract: 1472722 Exhaust manifolds NISSAN MOTOR CO Ltd 3 July 1975 [3 July 1974] 28009/75 Heading F1B A manifold system for an internal combustion engine having an auxiliary combustion chamber connected by a torch nozzle to a main combustion chamber, comprises an intake manifold having a riser bottom wall, an exhaust manifold, a heater wall heated by the flow of exhaust gas through the exhaust manifold, the heater wall having aperture means and extending in spaced and opposed relation to the riser bottom wall so that the riser bottom wall is exposed to heat radiated from the heater wall, the heater wall and the riser bottom wall defining a chamber through which the exhaust gas flows. Fig. 1 shows part of an I.C. engine having a main combustion chamber 5 fed with a lean air-fuel mixture by a main carburetter 21 and an auxiliary combustion chamber 7 fed with a rich mixture by an auxiliary carburetter 15. Spark-plug 13 ignites the mixture in chamber 7 and a flame jet issues through port 11 to ignite the charge in the main chamber 5. An auxiliary inlet manifold extends from portion 35 of bottom riser wall 43 and a main inlet manifold extends from portion 37. Exhaust manifold 25 extends from main chamber 5 and has a liner 41 part of which forms heater wall 39. Two apertures 51 and 53 and a deflector 55 provide for gas flow through chamber 47 to heat wall portion 47, which is also heated by radiation from wall 39. Wall portion 37 is heated entirely by radiation from wall 39. In a first modification, partition 45 is omitted and the outlet aperture moved so that exhaust gas sweeps across the whole of heater wall 39, Fig. 3 (not shown). In a second modification, Fig. 5 (not shown) the construction of Fig. 3 is modified in that the deflector projects upwardly from the bottom wall of liner 41. In a third modification, Fig. 7 (not shown) the two apertures 51 and 53 of Fig. 1 are enlarged so that chamber 47 is completely open to the exhaust manifold and no deflector is provided. In a fourth modification, Fig. 9, exhaust gas enters chamber 87 through an aperture in wall 39, passes through opening 93 in partition 45 and leaves chamber 49 through aperture 95. In a fifth modification, Fig. 11, three apertures 99 are formed in the heater plate. Exhaust gas enters chamber 103 through the two outer apertures and leaves through a centre aperture to enter exhaust pipe 101.
Patent GB-472294-A (GB)
Title: Process for the production of androstendiols
Filed: 1936-03-16
Abstract: Unsaturated diketones of the cyclopentanopolyhydro-phenanthrene series of the general formula C19H26O2 are transformed into the corresponding unsaturated dialcohols of the general formula C19H30O2 by the action of hydrogenating agents. The hydrogenating agents used are metal alcoholates such as aluminium alcoholate and hydrogen in the presence of catalysts. The unsaturated diketones required for the process of the present invention may be obtained by oxidation of the corresponding hydroxy-ketones as described in Specification 448,183. In an example, an alcoholic solution of androstendione and aluminium isopropylate is heated for 7 hours, in the course of which acetone and isopropyl alcohol are removed through a fractionating column. The reaction mixture is poured into hydrochloric acid and extracted with ether to yield two isomeric unsaturated dialcohols which can be separated by means of digitonin.  Specifications 443,463 and 464,271 also are referred to.
Patent GB-261040-A (GB)
IPC: G01R23/02
Filed: 1926-11-08
Abstract: 261,040. Radiofrequenz Ges., (Assignees of Giebe, E., and Schiebe, A.). Nov. 7, 1925, [Convention date]. Addition to 252,170. Wave-detectors; piezo-electric crystal units.- In the piezo-electric resonator claimed in the parent Specification in which luminous effects are produced when resonance occurs, it is found that if the piezo-electric crystal is in a more or less evacuated chamber low-frequency electrical oscillations occur, probably as the result of intermittent discharges, simultaneously with the luminous discharge. These oscillations are employed to actuate acoustic auxiliary means for determining the resonance between the exciting electric high-frequency oscillations and the highfrequency elastic oscillations produced in the crystal. An aperiodic detector circuit with crystal detector and telephone may be coupled to an oscillating circuit that produces highfrequency oscillations and excites the piezoelectric crystal to elastic resonance, a loudspeaker being interposed. A musical note is heard in the telephone, commencing simultaneously with the luminous discharge at the crystal and disappearing when illumination ceases. In another arrangement a telephone has one terminal earthed and the other connected to a conductor placed near the oscillating crystal. A note is heard in the telephone, and may be strengthened by the use of an amplifier.
Patent GB-1224753-A (GB)
Title: Feed apparatus for presses or the like
Inventor: RASENBERGER OTTO
IPC: B21D43/09
Filed: 1968-06-13
Abstract: 1,224,753. Metal feed apparatus. L. SCHULER G.m.b.H. 13 June, 1968 [15 June, 1967], No. 28151/68. Heading B3W. [Also in Divisions B8 and F2] A feed mechanism for a press comprises material advancing means including a shaft 18 driven by a crank drive 5 connected to said shaft by means of a four bar linkage 14, 20, 21, 26. The position of the point 21 of the linkage may be adjusted by rotation of wheel 25 geared thereto to alter the amount of angular movement applied to shaft 18 by a lever 16. The material is advanced by rollers 7 and 8, intermittently driven in one direction only by a gear 28 linked to shaft 18 by means of a clutch. The height of the rollers 7 and 8 may be altered by means of a screw 12. A second set of rollers, similarly driven by shaft 18, may be situated on the other side of the press 1, Fig. 1 (not shown).
Patent GB-915080-A (GB)
Title: An improved method of and apparatus for applying a liquid to the periphery of a cylindrical or conical article
Inventor: ADAMS JOHN FRANCIS EDWARD
IPC: B41F17/18
Filed: 1959-08-18
Abstract: <PICT:0915080/III/1> Substantially cylindrical or conical articles 26, e.g. plastic bottles, are each rotated in contact with an inextensible surface 20 which has an inked impression-bearing surface and a varnish-carrying surface and is carried through a substantially triangular path by toothed belts 18, Fig. 2 (not shown) and 19 moving at a greater linear speed than the carrier 27 which supports the freely rotatable bottles 26.  Ink is applied to the surfaces 20 at stations 21, 22 and varnish at station 23 and at these stations and at the upper straight run of the belts where these liquids are applied to the bottles, plates 24, 25 are provided as supports for the surfaces 20.  Shaft 4 is coupled to an electric motor, Fig. 2 (not shown) and through gears 12, 13 drives a shaft 14 driving belts 15, 16, 17 which operate the inking and varnishing units.
Patent GB-1385564-A (GB)
Title: Method of and apparatus for avoiding relative movements in flame cutting machines
IPC: B23K7/00
Filed: 1972-06-16
Abstract: 1385564 Flame cutting MESSER GRIESHEIM GmbH 16 June 1972 [18 June 1971] 28340/72 Heading B3V A drive means moving a driven member of a flame cutting machine is stopped if relative movement, outside of predetermined tolerances, occurs between the drive means and the driven member. A carriage carrying a flame cutting torch 20 is movable on rollers 11-16 along tracks 17, 18 by a driven endless steel strip 25, 26. The front 25 or rear strand 26 of the endless strip is connected to the carriage by clamping it between a carriage member 27 and a clamp jaw 28 or 29 movable by rotating a spindle 31 which is in screw threaded engagement with the clamp jaws 28, 29. Upon clamping of the strip 25, 26 to the carriage, spring loaded balls 49 are depressed to enable a pointed sensor 38, connected by a leaf spring 40 to a rotatable pin 42, to press against the endless strip. If excessive relative movement between the strip and carriage occurs, the sensor 38 is pivoted about the pin 42 causing a rod 43a, connected to the pin 42, to actuate a switch 46, 47 which triggers a warning signal and switches off a motor (24) (Fig. 2, not shown) of a roller (22) driving the endless strip.
Patent GB-1217925-A (GB)
Title: Process for manufacture of phenyl-heterocyclic-acetic acid derivatives
Inventor: EDWARDS PHILIP NEIL
IPC: C07D213/55
Filed: 1968-06-14
Abstract: 1,217,925. Esters of alpha-(phenylheterocyclyl)alkanoic acids. IMPERIAL CHEMICAL INDUSTRIES Ltd. 6 May, 1969 [14 June, 1968], No. 28361/68. Heading C2C. Compounds of formula are prepared by reacting compounds of formula YXW(Het)CHR<SP>1</SP>R<SP>2</SP> with (R<SP>3</SP>) 2 CO 3  and M, MH, MNH 2  or C 1-3  - alkyl - OM, wherein "Het" is an oxazole or thiazole nucleus with the CR<SP>1</SP>R<SP>2</SP> side-chain in position 2, or a pyrimidine or pyridine nucleus with the CR<SP>1</SP>R<SP>2</SP> side-chain in position 2, 4 or 6; R<SP>2</SP> and W, H or Me, X is H or MeO, Y is Ph (possibly CF 3  or mono- or di-halogen i.e. F, Cl or Br, substituted), R<SP>1</SP> is Me or Et, R<SP>3</SP> is C 1-4  alkyl and M is Na or K, Y and the CR<SP>1</SP>R<SP>2</SP> side-chain being in non-adjacent positions in "Het". Pharmaceutically acceptable acid addition salts may be formed subsequently. Reference has been directed by the Comptroller to Specifications 1,099,389,1,121,922, 1,139,940 and 1,147,068.
Patent GB-1305442-A (GB)
IPC: A61Q5/10
Filed: 1970-06-11
Abstract: 1305442 Benzoquinone diimines L'OREAL 11 June 1970 [11 June 1969] 28423/70 Heading C2C [Also in Divisions C4 and D1] Benzoquinone diimines of the general formula wherein R 4 , R 5 , R 6  and R 7 , which may be the same or different, are H, halogen, C 1 -C 4  alkyl or alkoxy are prepared by oxidizing the corresponding p-phenylene diamine in an anhydrous solvent at 30-70‹ C. in presence of an oxidizing agent, e.g. silver or lead oxides. Examples 28- 30 and 32 describe the preparation of 2-methyl- 5-methoxy-, 3,5-dimethyl -2-methoxy- and 2,5 -dimethoxy-benzoquinone diimines.
Patent GB-445116-A (GB)
Title: Improvements in or relating to cartons or containers for eggs and other articles
IPC: B65D85/32
Filed: 1934-10-04
Abstract: 445,116. Cartons. THOMPSON & NORRIS MANUFACTURING CO., Ltd., and MASON, A. C., Stanley Gardens, Acton Vale, London. Oct. 4, 1934, No. 28435. [Class 18] The carton described in Specification 389,742, is modified by associating with the diagonal seating B a strut or distance piece C which determines the position of the lower edge of the seating with respect to the rear wall of the casing. The blank may he closed by selfadhesive means such as latex on the parts A<5>, A<6> or by labels or strips. The distance pieces may be separate.
Patent GB-821124-A (GB)
Title: Improvements relating to methods of concentrating solutions of absorbable substances
IPC: B01J47/014
Filed: 1957-09-10
Abstract: A dilute solution of an organic hydroxy compound is concentrated by treating with an ionic exchanger impregnated with borax or boric acid which absorbs the solute, and this is redissolved in a smaller quantity of a neutral liquid.  In examples, dilute solutions of phenols, sugars, and glycols are treated using as final solvent, aqueous solutions of sodium sulphate or chloride, or ammonium sulphate.ALSO:A dilute solution of an organic hydroxy compound is concentrated by treating the solution with an ion-exchanger impregnated with borax or boric acid, which absorbs the solute, and this is re-dissolved in a smaller quantity of a neutral liquid.  In examples, sugar, glycol, sorbitol, glycerol, and phenol solutions are concentrated, e.g. a 1% solution of glucose in water is passed through an ion-exchange resin impregnated with a concentrated borax solution.  The absorbed glucose is washed out with a dilute solution of sodium sulphate which then contains 13% of glucose.  Other final solvents are sodium chloride, and ammonium sulphate solution, and solutions of substances which are analogous to the adsorbed substances, e.g. a solution of sorbitol may be used for the elution of adsorbed 1,2-propylene glycol.
Patent GB-193904-A (GB)
Title: Improvements in and relating to machines for forming and driving staples
IPC: A43D69/04
Filed: 1921-10-29
Abstract: 193,904. Gent, A. S., Ward, A., and Pochin, F. H. Oct. 29, 1921. Stapling.-In a staple forming and driving machine, jamming is prevented by operating the anvil in such a way that no gaps are left in the forming and driving slide on the withdrawal of the anvil. The device is shown applied to a machine for attaching the upper to the insole of welted shoes. An anvil 40, Fig. 5, is carried in a block 39, Fig. 2, operated by a reciprocating plunger 43, bevelled at 44 to engage an orifice 46 in the block which is pressed downwards by a spring 53. The block 39 slides vertically in a passage 38 in a cap 29 covering the top of the staple-forming slide, but the block does not pass into the slide, being separated from it by metal with a slot 41 to accommodate the passage of the anvil 40 only. On the withdrawal of the anvil, the block 39 is so regulated as to bring the lower edge of the anvil flush with the top faco of the slide, thus allowing no free edges to catch and jam the staple. The staple itself is made from continuous wire fed by twin rollers 9, Fig. 2, one of which is serrated, operated by ratchet gear 5, 6, from a rocking shaft 13 driven by a cam 18 and rocking-lever 16. The wire is fed upwards to a passage 26, Fig. 3, in the staple-forming slide 25. The wire. is cut by an edge of a former 30 which has a guide and support 32 sliding in a groove 33 in the part 25. The support 32 projects forward from the cutting- edge so that the groove 33 is closed before the wire is fed forward from the passage 26. The wire is formed by two formers 30, 31, reciprocated by a bar 34, cam-operated at 37, Fig. 2, from a disc 19 on a shaft 20. The staple is driven by a bar 50 supported by a web 51 working in a groove 52 in the part 25. A work-support 61 on a slide 60 is pressed outwards by a spring 62. The support is moved against the work by treadle-operated means 78 connected to a bellcrank 75, 76, engaging in the slide 60. The work-support may be held in position by pawls 66 engaging a rack 65 on the slide 60. These pawls can be tripped by a rocking lever 70 engaging parts 68 on the pawls and a cam 71 on the disc 19. The lever 70 can also be rocked by hand to release the work. The Provisional Specification also states that the invention is applicable to securing ornaments, buckles, and the like, to women's and children's shoes, and is applicable also to bookbinding and to cardboard and wood box-making. In addition the treadle mechanism is arranged to actuate the driving-clutch, means being provided to prevent repeating. It is also stated that the machine may have its slides to operate vertically instead of horizontally, and a horn may be used as a work-support.
Patent GB-1085605-A (GB)
Title: Improvements relating to electro-mechanical movements for clocks
IPC: G04C3/04
Filed: 1966-06-28
Abstract: 1,085,605. Electromagnetic switches. GEBR. STAIGER. June 28, 1966 [June 30, 1965; Sept. 13, 1965], No. 28884/66. Heading H2B. [Also in Division G3] An electromagnetic movement for an electric clock comprises a regulator consisting of a balance 3 and spiral spring 4, the regulator being driven by a moving coil 7 whose energizing circuit is closed by means of a spring 9 or a spring 10 for rotation of the balance in one direction, the spring 9 also providing the driving impulse for the regulator as long as the angular velocity of the coil exceeds that of the balance. The coil 7 is mounted on a frame 7a and oscillates in the gap between a magnet 5 and a yoke 6. The springs 9, 10 are inserted in a ring 8 fixed on the shaft of the coil and backing bars 9b, 10b support the springs. The inner facing sides of the springs have coatings 9a, 10a of conductive material and the spring 10 has an insulating layer 10c on its outer side. A pin 3b of conducting material is mounted on an arm 3a of the balance so that a complete circuit is formed by an insulated terminal F, a coil restoring spring 11, the coil 7, the spring 9 or 10, the pin 3b, the spiral spring 4 and an earth connection C. The coil therefore starts to rotate with an angular velocity greater than that of the balance so that the pin 3b contacts the spring 9 which then drives the balance wheel until the spring moves out of contact with the pin 3b. The balance continues to swing in the same direction but the spring 11 returns the coil 7 back to its starting position. When the balance swings back in the opposite direction the pin 3b contacts the insulated layer 10c of the spring 10 and pushes this spring away from its backing bar 10b so that the pin again returns to its position between the springs. A spring pawl 12 is attached to the coil and rotates a ratchet wheel 13 which drives the hands of the clock, stops for the coil being provided by a rightangled bend on the pawl engaging opposite sides of a space 14. In a modification. Fig. 2 (not shown), two thin springs (29, 30) which overlap at their free ends without touching are attached to the frame 7a. An arm (22) projects from the frame and supports an abutment (23) at its end, the springs bearing against this abutment. The balance wheel is rotated by the spring (29) bearing on the pin 3b until the arm (22) abuts a stop (21b) whereby the further movement of the balance wheel breaks the contact between the pin and the spring (29) so that the coil swings back to its initial position. The spring (29) functions as a contact spring whilst the spring (30) acts as a guide.
Patent GB-995919-A (GB)
Title: Air bleed valve
IPC: F16K24/04
Filed: 1962-07-27
Abstract: 995,919. Valves; pipe joints. S. G. ROSS. Aug. 2, 1963 [July 27, 1962], No. 28957/62. Headings F2G and F2V. A vent valve of the shuttle type is mounted vertically with its lower port 14 or 15 connected to the highest point in a liquid system whilst the upper port 15 or 14 leads to a tank or drain; when the system is not under pressure the shuttle closure 20 engages the lower seat 19 to prevent ingression of air into the system. Upon pressurizing the system any air therein lifts the closure 20 and escapes past flats 23, 24 on the latter through the upper port; after expulsion of the air, liquid enters the valve and carries the shuttle 20 on to the upper seat 18. Any subsequent entry of air into the system will displace liquid in the valve and when the shuttle lies wholly in air it will fall and allow the air to escape. The shuttle closure may comprise a ball. The seats are of resilient material, e.g. nylon or metal, and the ports 14, 15 are taper threaded for connections to pipes. The ports may be formed in spigot members which are held in the end of the body by circlips in aligned grooves; seat rings are provided in the spigots. These spigots may be formed with external hexagonal surface. The closure may be made of aluminium or magnesium alloy, brass, bronze, stainless steel or mild steel.