baber/WOPTO huggingface dataset:
Patent GB-887603-A (GB)
Title: An improved pressure transducer
Inventor: PITZER EDMUND WILLIAM
IPC: G01L9/00
Filed: 1959-06-06
Abstract: 887,603. Pressure transducers. EDCLIFF INSTRUMENTS. June 6, 1959, No. 19411/59. Class 40 (1). [Also in Group XIX] A pressure transducer of improved sensitivity and stability comprises a Bourdon type tube formed in a flat spiral, the free end operating the contact arm of a resistance potentiometer or acting on a wire strain gauge, inductive pick-off &c. In the embodiment shown in Fig. 1, the measured pressure is applied through a pressure fitting 34 to the interior of a pressure capsule 32 and transmitted by damping fluid through ports 17 into the main chamber 16 and hence to the exterior of the spiral tube 30 which is evacuated and sealed at both ends. The outer end of the spiral tube 30 is rigidly attached to the base 10 while the inner free end is attached to a key 29 and so rotates a shaft 20 and hence contact arms 27, 28 over arcuate resistance coils 24, 25. The contact arms 27, 28 may be bimetallic strips for compensating the ambient temperature of the damping fluid. The use of the pressure capsule isolates the measured fluid from the interior operative elements of the transducer, also the direct linkage between the pressure responsive system and the displacement sensing system gives the transducer a high inertia. In a further embodiment, Fig. 3 (not shown), the inner end of the spiral tube 30 is fixed and the outer end controls the positions of the potentiometer sliders. A single adjustable resistor, Fig. 4 (not shown), or more than two may be controlled by the Bourdon tube. In other arrangements not described in detail the Bourdon tube instead of being evacuated is connected to a source of pressure to be measured and the outside of the tube is subjected to atmospheric or other pressure to which the capsule is connected. The position of the resistance wires and their sliders may be transposed so that the sliders are fixed and the coils rotate.
Patent GB-781124-A (GB)
Title: Tobacco smoke filter
IPC: A24F7/04
Filed: 1955-07-05
Abstract: 781,124. Tobacco smoke filters. DENICOTEA SOC. ANON. FRIBOURG. July 5, 1955 [April 22, 1955], No. 19438/55. Class 130. A filter for a cigarette or cigar holder or tobacco pipe comprises a casing 40, Fig. 2, which is tapered towards the outlet end 42 and provided with perforated closures 32, 34, at both ends, the casing being filled with filtering material, such as silica gel, in granular or finely-powdered form. In Fig. 2 the tapered end 42 of the filter fits tightly in a corresponding tapered portion 38 of the bore of the mouthpiece portion 12 of a cigarette holder, the cigarette-receiving portion 14 of which is connected thereto by a jointing sleeve 36. A slidable ejection member 17 is provided in the part 14. In a modification the tapered end 42 of the filter is provided with a short, smalldiameter cylindrical extension. In Fig. 6 the filter is fitted to an existing holder by means of a tapered adaptor sleeve 52 press-fitted in position.
Patent GB-335274-A (GB)
Title: Improvements in or relating to beer engines and similar pumping apparatus
IPC: B67D1/02
Filed: 1929-06-25
Abstract: 335,274. Garrington, C. H., and Nicholson & Sons, Ltd. June 25, 1929. Delivery pipes. - A pump chamber 10 is secured to its support 17 by wing nuts 18 and the delivery pipes 19, 20 to the tap 21 are arranged in straight lengths, joined by an elbow piece 25 fitted with plugs 26. The tap 21 is secured to its support by wing nuts 23. The whole system is thus easily dismantled for cleaning purposes.
Patent GB-493385-A (GB)
Title: Improvements in priming compositions
IPC: C06B43/00
Filed: 1937-07-14
Abstract: 493,385. Explosives. DEUTSCHE WAFFEN-UND MUNITIONS-FABRIKEN AKT.-GES. July 14, 1937, No. 19567. Convention date, June 4. [Class 9 (ii)] Diazo-triazole carboxylic acid is used as initiator in non-rusting and non-corroding priming compositions, free from fulminate of mercury. This acid may be produced by treating amidotriazole carboxylic acid with nitrous acid. An example of a composition for use in percussion caps contains lead styphnate 30 per cent, diazo-triazole carboxylic acid 5 per cent, antimony sulphide 10 per cent, lead di-oxide 5 per cent, barium nitrate 45 per cent and calcium silicide 5 per cent.
Patent GB-1394570-A (GB)
Title: Light-beam steering apparatus
IPC: G01D15/14
Filed: 1971-06-09
Abstract: 1394570 Indicating-apparatus G S B STREET 2 June 1972 [9 June 1971] 19573/71 Heading G1J [Also in Division G2]  A light-beam steering apparatus has first and second mirrors 21, 22 displaceable about parallel axes to deflect an incident light-beam in a common plane perpendicular to the axes, each mirror being mounted on its own suspension system which also carries a coil 10, 11 suspended in a magnetic field whereby the associated mirror may be displaced by passage of a current through the coil, and an optical system between the mirrors, the mirrors being at conjugate points of the optical system and the system being constructed such that the plane of deflection of the light-beam after it has been reflected by the first mirror is rotated into a plane inclined to the common plane of deflection by the mirrors. A light-beam or laser-beam to be deflected falls on the mirror M 1 , Figs. 2A, SB, at a small angle of incidence, is reflected to pass through lens L 1  and 45 degrees prism P 1  to a Dove prism P 2  and thence by way of a 45 degrees prism P 3  and lens L 2  to mirror M 2 . The prisms P 1 , P 3  serve as reflectors to direct the beam from one mirror to the other through the Dove prism P 2  and the lenses serve to focus it near the reflection surface of prism P 2 . Passage of current through coil 10 causes mirror M 1  to deflect an incident beam in the common plane perpendicular to torsion suspension fibres 13, 14 and the Dove prism rotates the beam 90 degrees for deflection by the mirror M 2  in a plane parallel to the fibres 13, 14. The lenses L 1 , L 2  have the same focal lengths f and are spaced by an optical distance of 2f. The mirrors may be 1 mm squares, 0.1 mm. thick and 4.6 cm. apart. Another arrangement of prisms and lenses is described, Figs. 3A, 3B (not shown).
Patent GB-583154-A (GB)
Title: Improvements in and relating to electric power transmission systems
IPC: H02J3/40
Filed: 1944-10-12
Abstract: 583,154. Electricity supply; synchronising. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 12, 1944, No. 19652. Convention date, Oct. 12, 1943. [Class 38 (iv)] In a constant-voltage A.C. power system, means are provided for synchronizing a load system 3 and a generating station 2 prior to substantially-simultaneous connection to a long transmission line 1 so as to effect charging of the latter from both ends. The synchronizing means comprises a high-frequency generator 8, the amplitude of whose output is modulated in accordance with the frequency of system 3 by controlling the conductivities of valves 11, 12 in accordance with this frequency through a transformer 15. This modulated current is fed through an amplifier 10, transformer 13 and coupling condenser 14 to the line 1, and is taken off at the end 2 through a coupling condenser 17, transformer 18, and a control switch 19 and fed to an amplifier 20, the. output of which is fed through a rectifier 21 to the stator of a three-phase synchroscope 22 whose rotor terminals are connected to the generator 2. Thus, only at synchronism will the synchroscope-slip be zero and its rotor stationary, as indicated on a dial 23. A circuit-breaker 6 at the end 2 is then closed, and actuates switch 19 through a linkage 25 to connect a high-frequency oscillator 26 to transformer 18, which transmits a closing signal to circuit-breaker 7 over the line 1 to a receiver connected to transformer 13. Voltage regulators may be provided at each end of the line to equalise the charging currents.
Patent GB-584981-A (GB)
Title: Manufacture of thiazoline derivatives
IPC: C07D277/12
Filed: 1945-03-12
Abstract: Thiazoline derivatives of general formula <FORM:0584981/IV/1> wherein R, R1 and R111 each represent hydrogen or a hydrocarbon radical and R11 represents a hydrocarbon radical, are obtained by interacting an a -acylaminoacrylic ester of the formula <FORM:0584981/IV/2> with phosphorus pentasulphide, conveniently by heating the reactants together in presence of an inert solvent or diluent and preferably in presence of potassium polysulphide, conveniently used as liver of sulphur.  In examples: (1) methyl a  - benzoylamino - b  : b  - dimethyl - acrylate, phosphorus pentasulphide and potassium polysulphide are heated together under reflux, in toluene, and the residual oil, in methanol, is distilled in vacuo to isolate methyl 2-phenyl-5 : 5-dimethylthiazoline-4-carboxylate; (2) methyl a -acetylamino-b b -dimethylacrylate, phosphorus pentasulphide and potassium polysulphide are treated as in (1) using benzene to isolate methyl 2 : 5 : 5-trimethylthiazoline-4-carboxylate; (3) ethyl a -benzoylaminocinnamate, phosphorus pentasulphide and potassium polysulphide are treated as in (1), using toluene, and the residual oil, after removing sulphur, is saturated, in dry ether, with hydrogen chloride, the residue being treated with aqueous sodium bicarbonate and extracted with ether to isolate ethyl 2 : 5-diphenylthiazoline-4-carboxylate, from which the corresponding 4-carboxylic acid is obtained by saponification and ultimate acidification.  Methyl-a -benzoylamino-b  : b -dimethylacrylate is obtained by heating under reflux 2-phenyl-4-isopropylidene-5-oxazolone, methanol and concentrated sulphuric acid and pouring the mixture into water to isolate the product.  Methyl - a  - acetylamino - b  : b  - dimethylacrylate is obtained from chloroacetylvaline, which is converted into 2 - methyl - 4 - isopropyline - 5 - oxazolone by heating with acetic anhydride, which substance is treated with methanolic sodium methoxide.
Patent GB-972985-A (GB)
Title: Improvements in endless conveyors
Inventor: DODSON ALFRED ERNEST
IPC: B65G41/00
Filed: 1960-06-03
Abstract: 972,985. Endless conveyers on ships. J. COLLIS & SONS Ltd. June 2, 1961 [June 3, 1960], No. 19768/60. Headings B8A and B8E. The inboard end of an endless conveyer 1 for ship's work is pivoted on a horizontal shaft 6 and the outer end is provided with a pair of roller units for resting on a quay-side 3. The shaft 6 is mounted in self-aligning bearings in housings 4, and each roller unit comprises a roller 8 mounted on a parallelogram device which maintains the roller parallel to the shaft 6. To give support to the parallelogram adjacent the roller, rollers 19 are provided. The parallelogram is biased to a central position by springs 15 acting on rollers 16. To prevent damage should movement of the parallelogram device from its central position become excessive, limit switches 18 are operated by the side arms of the parallelogram device and a motor rocks the frame of the conveyer 1 about the shaft 6 sufficiently to lift the roller 8 clear of the quayside. Similarly, if movement of the bearing housing 4 exceeds a predetermined amount, a limit switch 6a is actuated to cause lifting of the outboard end of the conveyer. The conveyer may be pivoted inboard to a position of non-use and may be in two sections, the outer section folding against the inner for accommodation between decks.
Patent GB-745563-A (GB)
Title: Improvements relating to electrical timing apparatus
Inventor: HAYNES FRANK GRENVILLE
IPC: H01H43/10
Filed: 1953-07-16
Abstract: 745,563. Stencil switches. METROPOLITAN-VICKERS ELECTRICAL CO.. Ltd. July 16, 1954 [July 16, 1953], No. 19785/53. Class 38(5) A switch for producing a series of electric impulses comprises a rotatable record surface provided with a number of indentations at selected intervals along a path on said surface, and a mechanical pick-up device adapted to actuate contacts to produce an impulse each time the pickup meets an indentation. As shown, the pick-up 7 is carried by an arm 8 pivoted and slidable on a rod 5 and having a "half-nut" 13 engaging a lead screw 14 so that the pick-up may be moved radially across the record surface 1, this movement combined with the rotation of the record causing the pickup to move along a spiral path over the record. The indentations are formed by holes 25 and the pick-up has a pointed stylus 18 mounted on a spring 19 supporting a contact-carrying arm 20. The pick-up is supported by a further member resting on the record surface so as to cause relative movement between the stylus and the pick-up when a hole 25 is engaged, silver contacts 21 22 thereby being closed momentarily. The half-nut 13 enables the arm 8 to be raised to free the pick-up from the screw 14 during resetting. The contacts may be normally closed and the pulses may be used to energize an electromagnet ratchet motor to drive a recording chart.
Patent GB-139411-A (GB)
Title: Improvements in apparatus for retreading tyres
IPC: B29D30/54
Filed: 1919-08-12
Abstract: 139,411. Goldberg, S. H. Aug. 12, 1919. Vulcanizing - chambers.-In apparatus for re-treading tyres, the tyres are mounted on a shaft passing through a heated chamber, and are rotated during the operation. The tread is attached to the cover by solution, the inner tube is inflated, a wrapping is applied, and the tyre is mounted on a spider 11, Fig. 3, having adjustable bolts 16 carrying saddles 17. The spider has a feather way 13 which engages a feather 12 on a shaft 9, Fig. 1, passing through the vulcanizing chamber 2. The chamber 2 has a semi-cylindrical top 3 with flue 23 and inepection window 20 and an internal semicircular baffle 21 above burners 22, and has end doors 4 hinged at 5. The spiders are slid on the shaft 9, adjacent spiders being held apart by distance-piece 18. During vulcanization, the shaft is rotated by a motor 31 through worm gearing 28, 29, and chain and sprocket wheels 24, 25, 26.
Patent GB-147790-A (GB)
Title: Improvements in the method of connecting conductor bars of dynamo machines
IPC: H02K15/00
Filed: 1920-07-09
Abstract: 147,790. Apple, V. G. May 20, 1018, [Convention date]. Dynamo-electric machines.-The armature conductors 6, 7 of dynamo electric machines are separated by insulation 10 and their ends 8, 9 deflected into contact and electrically welded together. Apparatus 13 is provided for carrying out the operation.
Patent GB-743442-A (GB)
Title: A small reaper-thresher
IPC: A01F12/00
Filed: 1953-07-17
Abstract: 743,442. Reaper-thrashers. MASCHINENFABRIK FAHR AKT.-GES. July 17, 1953 [Aug. 4, 1952], No. 19877/53. Class 58. The frame 1 and platform 9 of a small reaperthrasher are supported by a main wheel 2 and a prop wheel 3. An endless conveyer 10 and transfer roller 11 feed crops from the cutting mechanism to a thrashing basket 12 and drum 13, from which straw is transferred by a roller 20 on to a steeply ascending straw riddle 16, along which movement of the straw is assisted by an endless conveyer cloth 21. Grain and chaff are led by a shoot 15 into a collecting trough 14, e.g. provided with a conveyer worm, and are lifted, by an elevator 30, from the rear to a sack-filling outlet 32. The riddle is in the form of a sieve with steps 17 and is supported by a crank-shaft 18 and rocking arms 19.
Patent GB-910672-A (GB)
Title: Pneumatic tyre cover
IPC: B60C11/02
Filed: 1961-06-02
Abstract: 910,672. Replaceable tread tyres. GILLIERON, P. H. June 2, 1961 [June 8, 1960], No. 19896/61. Addition to 900,189. Class 144 (2). In the pneumatic tyre described in the parent Specification, the screw-thread rib 3 on the casing periphery terminates in a stopring 5 which locates in a complementary terminal groove 6 in the inner periphery of the tread band 2 and effectively limits the screwing of the band on to the casing. The tyre is mounted so that during normal forward rotation the tread band tends to screw further on to the casing against the stop ring 5.
Patent GB-1352392-A (GB)
Title: Phenylisopropylamine derivatives
Filed: 1971-06-10
Abstract: 1352392 Metabolic &c medicines CHINOIN GYOGYSZER ES VEGYESZEN TERMEKEK GYARA RT 10 June 1971 [10 June 1970] 19925/71 Heading A5B [Also in Division C2] Pharmaceutical compositions having motility and metabolism stimulating activity comprise, as active ingredient, at least one 2-phenylisopropylamine of the general formula wherein R<SP>1</SP> is a hydrogen atom or C 1-7  alkyl or aralkyl group, R<SP>2</SP> is a hydrogen atom or C 1-7  alkyl group, R<SP>3</SP> is a hydrogen or halogen atom or amino or diazonium salt group, R<SP>4</SP> is a halogen atom or nitro or amino group, R<SP>5</SP> is a hydrogen or halogen atom or amino, hydroxy, alkoxy or diazonium salt group and R<SP>6</SP> is a hydrogen or halogen atom, or pharmaceutically acceptable acid addition salt thereof, together with pharmaceutical carriers or excipients and optionally other active ingredients, such as analgesic, diuretic, sedative, spasmolytic, hypotensive, antiinflammatory and coronary flow-increasing agents. They may be administered in the form of powders, tablets, pills, coated pills, suppositories, capsules, solutions, emulsions or injectable preparations.
Patent GB-516657-A (GB)
Title: Improvements in or relating to the manufacture of nickel and cobalt salts
IPC: C01G53/10
Filed: 1938-07-05
Abstract: 516,657. Purifying solutions of nickel and cobalt salts. UNIFLOC REAGENTS, Ltd., and SAMUEL, J. O. July 5, 1938, No. 19935. [Class 1 (iii)] Iron impurity, precipitated by Nickel or Cobalt Carbonate as hydroxide from slightly acid Nickel or Cobalt chloride or sulphate solutions is removed by filtering after adding at 60-100‹C. say 8 to 20 1bs. per 1,000 gallons of a peroxide, hydroxide, or higher oxide of Nickel or Cobalt, e.g., NiO2 nH2O, Co(OH)3, CO2 O3, in the presence of an added filter aid of aqueous cellulose, e.g., wood or paper, pulp which may or not be preliminarily flocculated preferably during pulping by adding to the neutral or slightly alkaline solution aluminium sulphate or chloride till pH 5 is reached, or by using the flocculating gel described in Specification 435,126. The peroxide &c. and filter aid may be premixed before addition and the oxidation may be facilitated by passing an air current. In examples the separate use of 10 1bs. and 40 1bs. per 1,000 gallons respectively' of peroxide &c. and cellulose pulp (containing 78 per cent. water) has little effect, but used in conjunction the rate of filtration at 70‹C. is more than doubled.
Patent GB-381252-A (GB)
Title: Improvements in valves used in float operated valves and such like purposes
IPC: F16K31/26
Filed: 1931-07-13
Abstract: 381,252. Float valves. CARTER, F. S., 13, St. Andrew's Crescent, Cardiff. July 13, .1931, No. 20015. [Class 135.] A float-operated ball valve, for steam traps and water cisterns, comprises a movable valveoperating member directly connected to a reciprocating float, and a fixed seating member, one of said members being formed as a cage for one or more ball closure members which are adapted to close down upon their seatings, solely by fluid action, the operating means passing out of contact with the ball or balls which are thereby left independent of any rocking movement of the float. As applied to a steam trap, the ball valve a, Fig. 1, is enclosed in a cage b, c, d attached directly to the float (not shown) so that when the float rises the ball valve a is lifted from the seating f for the discharge of the condensate, as shown by the arrows. In a variant for a supply valve for cisterns, the ball valve a<1>, Fig. 7, is caged in a fixed member g<1> (the water inlet passage) and is pushed downwards away from its seating by a pin k attached to a cylindrical member d<1> directly connected to the float. In a further form, a number of ball valves a<2>, Fig. 8, are disposed in cages opening to an annular passage connected to the water inlet g<2>. The ball valves a<2> are pushed outwardly from their seatings by a conical-shaped member k<1> connected by a rod u directly to the float (not shown).
Patent GB-463371-A (GB)
Title: Improvements in emergency gear for stopping internal combustion engines
IPC: F01L13/06
Filed: 1936-07-20
Abstract: 463,371. Fluid-pressure servomotorcontrol systems. CROSSLEY-PREMIER ENGINES, Ltd., and YEATES, A. C. July 20, 1936, No. 20024. [Class 135] [Also in Group XXVI] An internal-combustion engine is stopped at excessive speeds by means of an ordinary or emergency governor engaging a rod which turns a trip lever c and releases a weighted lever e to open a valve g which passes compressed air to a cylinder h containing a plunger which acts through a rod to operate the cam &c. of the decompression gear normally used in starting to hold open the exhaust valves.
Patent GB-958855-A (GB)
Title: Process and apparatus for production of sulphuric acid esters
IPC: C07C305/10
Filed: 1962-05-24
Abstract: <PICT:0958855/C2/1> In the manufacture of sulphuric acid mono-esters from chlorosulphonic acid and organic compounds containing one or more alcoholic hydroxyl groups, the organic compound in liquid form is distributed in a stream of inert gas and the mixture is moved along a conduit into which chlorosulphonic acid is sprayed, the velocity of the mixture being such as to produce a turbulent froth; the mixture then passes to a vessel in which the gaseous reaction products are separated from the liquid products.  As shown, inert gas is supplied through an inlet 17 to a jacketed reaction conduit 10 to which an alcoholic compound is fed through an inlet 20. Chlorosulphonic acid is supplied through an inlet 18, and the turbulent frothy mixture flows through the conduit into a vessel 14, from which gaseous and liquid products are withdrawn at 15, 16, respectively.  More than one inlet for chlorosulphonic acid may be provided.  The reaction temperature is 5-100 DEG C., and compounds which are not normally liquid under these conditions may be treated in solution. The duration of the reaction in the conduit 10 is from 0.1 seconds to 2 minutes, and the volume of inert gas, which may be air or nitrogen, may be 50-300 times the volume of liquid. Examples are given of the manufacture of sulphuric acid mono-esters from nonylphenoxy-polyethoxyethanol, lauryl alcohol, methanol, and a solution of cetyl alcohol in trichlorethylene.  Other specified compounds which may be treated are octylphenoxy-polyethoxyethanol, the monocetyl or monolauryl ether of polyethylene glycol, ethanol, n-butanol, cyclohexanol, hexamethylene glycol, benzyl alcohol, oleyl alcohol, glycerol, tetrahydroabietinol, n-dodecyl glycollate, trioctyl citrate, tetrahydrofurfuryl alcohol, and ricinolein. Reference is made also to the treatment of sugars, monocarboxylic esters or mono- or poly-glycols, and hydroxycarboxylic acids or their phenyl esters.
Patent GB-583326-A (GB)
Title: Improvements in burner cones of oil lamps
IPC: B21D51/10
Filed: 1944-10-18
Abstract: 583,326. Wick burners. SHERWOOD, S. H. Oct. 18, 1944, Nos. 20111 and 20113. [Class 75 (i)] [Also in Group XXII] A sheet-metal blank shown in Fig. 1 is formed into a burner cone for an oil lamp by cold-pressing and raising operations, the ends 4 of the blank being first raised, the wings 2 at the upper edge being then bent to form bulges, and the ends finally being closed to form a butt joint 9 as shown in Fig. 4. The cone is then secured by threading lugs 3 at its base though perforations in an annular seating 13 in a mount 14, Fig. 5, and a clamping washer 16, Fig. 6, and. then bending over the lugs.
Patent GB-1191563-A (GB)
Title: Improvements in or relating to a Process for Treating Cast Iron and a Product for Carrying Out Said Process.
IPC: C21C1/10
Filed: 1968-04-29
Abstract: 1,191,563. Treating molten iron. CENTRE DE RECHERCHES DE PONT-A-MOUSSON. April. 29, 1968 [May.9, 1967; March. 4, 1968], No. 20140/68. Heading C7D. A metallic inoculation agent such as magnesium, cerium, sodium or calcium is added to molten iron by means of an immersion bell, the agent being in the form of one or more pieces each having a refractory coating. To ensure an extended reaction the inoculant may be in the form of a number of pieces having refractory coatings of differing thicknesses, or may be a single piece having a thin coating on one face and a thicker (e.g. 2 to 20 times) coating on the other faces.