baber/WOPTO huggingface dataset:
Patent GB-950648-A (GB)
Title: Circuit breaker operating mechanism
IPC: H01H71/52
Filed: 1961-08-25
Abstract: 950,648. Automatic circuit-breakers. SQUARE D CO. Aug. 25, 1961 [Oct. 3, 1960], No. 30649/61. Heading H2B. A circuit-breaker similar to that disclosed in Specification 827,733 has a different overcentre spring arrangement. The movable contact carrier 20 is pivoted on the trunnions 16 of the manual operating member 14 (instead of in recesses therein) and the tension spring is replaced by a compression spring 26 with a guide link 19, which is pivoted on a pin 18 carried by legs 15 of member 14 and slides on a pin 25 in carrier 20. The spring 26 acts between shoulders 27 of link 19 and the pin 25. A spring 33 urges the normally latched cradle 24 as shown and is strong enough to overcome the action of spring 26 so that when the cradle 24 is tripped a reset pin 35 thereon urges the member 20 to open-circuit position (Fig. 3, not shown). To reset the breaker the member 14 is moved further right to its manually opened position (Fig. 2, not shown), thus causing its legs 15 to engage pin 35 and move cradle 24 (against spring 33) into its latched condition. Movement of member 14 to its left extreme position then causes spring 26 to snap overcentre, closing the contacts 29, 30, as shown.
Patent GB-691078-A (GB)
Title: Improvements in valves for controlling the flow of liquids
IPC: B67D7/44
Filed: 1950-12-15
Abstract: 691,078. Ball-and-float valves. GLOCKER, P. Dec. 15, 1950 [Dec. 16, 1949; July 28, 1950], No. 30676/50. Class 135 A nozzle 1 for filling containers with liquid includes a flow control valve (not shown) which is opened when its stem 22 is raised on pulling up a handle 3, the valve being maintained in the open position by a pivoted latch 4 engaging the handle, and the catch is released to allow the valve to close when the rising liquid in the container lifts a float 5. The latter acts through a wire 7 to lift a ratchet pawl 8 from a toothed wheel of a gear train of which the end member 17 carries a cam 16 co-operating with an abutment on the latch 4. The spindle of the member 17 is encircled by a spring motor which is wound up by a handle 14, movable between stops 15, 20, so that, when the pawl 8 is released, the spring rotates member 17 whilst running down, and the cam 16 swings latch 4 out of engagement with handle 3. to allow the valve to close. The float 5 reciprocates in a tube 6 parallel to the nozzle 1. In a modification, tube 6 runs inside the nozzle, the handle 3 carries a separate, adjustably hinged, lever which is engaged by the pivoted latch. and the member 17 carries a pin which engages a spring arm during the final part of the running down movement of the spring in order to damp down or brake the gear train.
Patent GB-780989-A (GB)
Title: Improvements in or relating to liquid treatment devices
Inventor: ZWICKY JOHN FREDERICK
IPC: B01L3/10
Filed: 1954-10-26
Abstract: 780,989. Purifying liquids. DURATUBE & WIRE, Ltd., and TENAPLAS, Ltd. Dec. 9, 1955 [Oct. 26, 1954], No. 30819/54. Class 46. Liquid, e.g. water, contained in a flexiblewalled container 1, is ejected therefrom, by squeezing the container walls, through a non- return valve 9 and through treatment material, e.g. one or more ion-exchange resins. contained in an outlet tube 2 communicating with a delivery nozzle 7 On release of pressure, air enters the container through an aperture 6 past a flexible liner 5, the liquid then in the tube 2 being retained therein for continuing treatment, until the next ejection, by the valve 9. The container wall may be rigid and the water ejected by air pressure applied internally, e.g. through the aperture 6. The treatment material may embody a colour indicator to indicate exhaustion. An ionexchange reagent may be regenerated by ejecting a regenerant through it from the container. Resins forming a mixed bed may be separated, and regenerated in the tube 2 in turn.
Patent GB-308365-A (GB)
Abstract: 308,365. I. G. Farbenindustrie Akt.- Ges. March 22, 1928, [Convention date]. 4-Alkyl or aryl-quinolines and their homologues are prepared by condensing a primary aromatic amine with a #-keto-alcohol or the corresponding unsaturated ketone in presence of an oxidizing agent such as nitrobenzene. and a water-eliminating agent such as sulphuric acid. The products are separated by dilution with water, or by steam distillation after making the reaction mixture alkaline, or by conversion into their acid hydroferrocyanates. According to the examples (1) lepidine is obtained by condensation of aniline with #-ketobutanol or methylvinyl-ketone, (2) 4 : 6-dimethylquinoline is prepared from ptoluidine and #-ketobutanol, and (3) 3 : 4-dimethylquinoline results from the interaction of aniline and a-methyl-#-ketobutanol.
Patent GB-689133-A (GB)
Title: Improvements relating to hearing devices
Inventor: HAIGH KENNETH RICHARDSON
IPC: H04R1/10
Filed: 1950-12-19
Abstract: 689,133. Hearing aids. BONOCHORD, Ltd. Oct. 11, 1951 [Dec. 19, 1950], No. 30921/50. Class 40 (iv). [Also in Group VI] A hearing aid appliance comprises a rigid tube 1 bent so as to be supported by the upper part of the ear, having at one end a removable tip 2 to fit in and seal the auditory canal, and at the other end an attachment 3 to receive a sound receiver. The tip 2 is preferably of rubber and various sizes can be made available to suit the patient. The material of the tube should be of relatively high specific acoustic resistance, of the order of 40 x 10<SP>4</SP> gm./sec./sq.cm., suitable material being hard polyvinyl chloride or polystyrene,
Patent GB-1204225-A (GB)
Title: Improved pinion assembly
IPC: G06M1/16
Filed: 1968-06-28
Abstract: 1204225 Counters STEWART-WARNER CORP 28 June 1968 [3 July 1967] 30942/68 Headings G1K and K8 Adjacent each wheel of a cyclometer, such as an odometer, is a bracket 64 with a pin 62 supporting a drive or transfer pinion 52 which is held in axial position by engagement of a flat disc 54 on the pinion with lips 90 on the bracket. The pinion has alternate full-width and half-width teeth 58, 60, Fig. 6, on one side of the disc for co-operation with transfer teeth 46 on the lower wheel or drive wheel, as the case may be, and a set of full-width teeth 56 on the other to drive the higher order wheel. The bracket may be of plastics material to provide flexibility to aid assembly.
Patent GB-428687-A (GB)
Title: Improvements relating to vehicle chassis frames
IPC: B62D21/09
Filed: 1933-11-07
Abstract: 428,687. Road-vehicle undercarriages. RENAULT, L., 8, Avenue Emile Zola, Billancourt, Seine, France. Nov. 7, 1933, No. 31000. Convention date, June 3. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 22, 1934.] [Class 108 (ii)] [See also Groups XXXI and XXII] Tubular distance pieces 22, disposed wholly internally and coaxially with oppositely located apertures in hollow chassis frame members formed of a pair of channel elements 1, 2, welded together at abutting edges 3, are positioned by engagement with internal means such as integral flanges 5, 6, Fig. 1, formed round the apertures or annular plates 23, Fig. 2, welded or otherwise affixed concentrically therewith. The distance pieces may have flared ends, as in Fig. 1, and may serve for the insertion of bolts or rivets attaching auxiliary parts to the frame. The Specification as open to inspection under Sect. 91, comprises also a chassis frame, Fig. 2 (Cancelled), having hollow side members each formed of two longitudinal elements, of cross-sections such as shown in Figs. 3, 8 or 12 (Cancelled), secured together along their adjoining edges, the members being formed with externally flanged apertures 5a, 6<a>, for insertion of tubular or box-type cross frame members 4 and tubular members 18 carrying brackets &c., 19, 20, for attachment of foot boards, the vehicle body &c. Alternatively, as shown in Fig. 11 (Cancelled), a cross frame member 29 may be butt welded to the flush edges of a flanged aperture 26 and a reinforcing liner 27, the closed end of the liner being riveted to the frame element 1. Figs. 6 and 7 (Cancelled), show sheet metal brackets adapted to be welded into the open ends of the frame side members, the front end brackets 9 carrying pins 12 for the suspension spring shackles and the rear end brackets 15 being apertured to carry a rear tubular cross frame member 17. Fig. 12 (Cancelled), shows a tubular frame member, the flanges 11, 2<1> of which are subjected to a continuous welding process by the use of rotary disc electrodes 31 suitably driven and adjustably pressed into contact. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1043965-A (GB)
Title: Process for the preparation of low torque crimped textile yarn
IPC: D02G1/02
Filed: 1964-08-04
Abstract: In a continuous i.e. false-twisting, or discontinuous process, multifilament, polyamide, polyethylene, polypropylene, polyvinyl chloride or polyacrylonitrile yarn is crimped by "double twisting" (generally at least 25% more than 29200/denier turns per metre) setting the twist by heating or chemically, and at least partially untwisting the yarn to leave a residual twist of 50-800 turns per metre therein.  Thus the yarn may be untwisted by the full amount of the twist applied to ensure double twisting and, if necessary, retwisted to the residual twist in the same direction thereas, or it may be untwisted by such amount less the required residual twist. The yarn may exhibit both visible and latent crimp and the latter may be developed by treatment of a continuous single strand or a hank with wet or dry heat or a swelling agent, with some "ageing". Another, more severe heat-treatment may follow to modify the (already low) torque characteristics of the yarn.  The final yarn comprises two forms of crimp, the large-wove crimp due to the double twisting occurring at intervals.
Patent GB-536734-A (GB)
Title: Process for the production of isobutylene
IPC: C07C1/30
Filed: 1939-11-30
Abstract: 536,734. Isobutylene. JESSUP, A. C. Nov. 30, 1939, No. 31174. Convention date, Dec. 5, 1938. [Class 2 (iii)] Isobutylene is prepared by heating primary or secondary butyl chloride or bromide in the presence or aluminium chloride, ferric chloride or beryllium chloride, preferably at a temperature of 300‹-500‹C. The starting material may comprise the reaction product of a straight-chain butylene with hydrochloric or hydrobromic acid. According to the example, butylene obtained from the dehydration of butyl alcohol over aluminium oxide is passed with gaseous hydrochloric acid over anhydrous aluminium chloride in a quartz tube heated to 350‹C. The cooled products are treated with cold sulphuric acid to dissolve out the isobutylene, which is then liberated by dilution and distillation. The reaction may be effected with less than the theoretical amount of acid, e.g. 10 to 20 per cent. thereof. The isobutylene may be dimerized and hydrogenated in known manner to give iso-octane for use as an anti-knock addition to motor fuel.
Patent GB-243907-A (GB)
Title: A process for adding a-vitamines to oils
IPC: A23D9/007
Filed: 1924-12-30
Abstract: A-vitamins are added to an oil or oils such as animal, fish, or vegetable oils, or edible mineral oils, for example liquid paraffin, or fatty oils which are solid at ordinary temperatures, by agitating the oils with an aqueous solution of a soap formed from a marine animal oil or oils containing A-vitamins, and then separating the oils from the soap solution.  The treatment is preferably effected with exclusion of air.  A small quantity of a fat solvent, such as benzine, may be added to the soap solution previous to the treatment. After separation from the soap solution, common salt may be added to the oil to cause the clear oil to separate out and flow to the top. The oil may then be further deodorized, for example by means of superheated steam. The oil, if suitable, may subseqpently be hardened by hydrogenation.  Oils containing A-vitamins, or to which the vitamins have been added by the above process, may be employed in the extraction so that their vitamin content may be raised to any desired degree.  In an example, cod liver oil is saponified with caustic soda and dissolved in water.  The soap solution obtained is agitated with earth-nut oil for about ten hours with exclusion of air and the oil then separated and purified.
Patent GB-1431896-A (GB)
Title: Ingot moulds
IPC: B22D7/06
Filed: 1972-07-04
Abstract: 1431896 Ingot moulds FOSECO INTERNATIONAL Ltd 29 June 1973 [4 July 1972] 31280/72 Heading B3F An ingot mould is pre-stressed by a tensioned endless strip (2) of metal heat shrunk around the mould. The strip may be made of steel and may be nailed to the mould.
Patent GB-671085-A (GB)
Title: Improvements in plants for drying and/or storing grain and other agricultural products
IPC: F26B25/00
Filed: 1949-12-06
Abstract: 671,085. Corn storage bins. HEIDENSTAM, E. J. VON. Dec. 6, 1949 [Dec. 7, 1948], No. 31322/49. Class 20(i) [Also in Group XIII] A building for storing and drying grain comprises a series of storage bins arranged round a vertical centreaxis the bins being constructed to allow for air conditioning and a rotatable vertical conveyer being located at the central axis. In one embodiment, Figs. 1. 3, six storage bins 2 are produced by an outside wall 3 and partitions 4, the base 5 of the bars being air-penetrable, and the centre of the assembly containing inter alia a tipping shoot 16 from the loading pocket 14, and a rotatable pneumatic conveyer tube 18, so that grain brought in at 14 can be discharged into any storage bin 2. A fan 20 driven by a motor 21 sends preheated air through air distribution channels located centrally under each bin. Grain is removed from the plant via a discharge pocket 25 filled from the conveyer 18. Minor modifications are shown in other embodiments, involving variations in the shape of the bins, and layout of apparatus.
Patent GB-1311190-A (GB)
Title: Velocity measzring apparatus
IPC: G01F1/66
Filed: 1970-06-29
Abstract: 1311190 Photo-electric velocity measurement LASER SYSTEMS & ELECTRONICS Inc 29 June 1970 [7 July 1969] 31347/70 Heading G1A [Also in Division H4] The velocity of a moving medium 26 is measured by irradiating the medium with coherent mono-chromatic light e.g. from a laser 18, combining a scattered beam with a non-scattered reference beam 31 at a photo-cell 46 whose output hence contains a component at the Doppler scattering frequency, and providing a D.C. signal output proportional to this Doppler frequency and thus to the medium velocity. In one embodiment, Fig.1, both the reference and scattered beams pass through the medium, the light path contains lenses 24, 28, 34, and photo-multiplier 46 is used. For monitoring a solid medium the reference and measuring beams are reflected therefrom. The amplified photocell output is divided, one portion being supplied direct to a mixer 50, while the other portion is passed through a variable delay 51 before being applied to the mixer. The mixer output is first integrated, then displayed on a D.C. meter 54, To take a velocity reading the delay 51 is first adjusted to give a minimum or maximum meter reading. Next the delay is adjusted to give a zero average meter reading. The difference between these two readings is proportional to the medium velocity, and the adjusting knob or dial on the delay device may be calibrated directly. in feet per second. In a further embodiment using a null method, Fig.2 (not shown) the photo-cell output is mixed with the output from a variable oscillator before being divided. The delay (70) is pre-set so that with a signal input at a given frequency the meter gives a zero average reading. To measure the frequency shift produced by a flowing medium, the oscillator frequency is adjusted until the meter reading is again zero. The difference between the oscillator outputs is indicative of the medium velocity. In an embodiment for reducing noise errors Fig.3 (not shown) the output from a first mixer (100), which combines the photo-cell and oscillator signals, is sampled by a hold and track circuit (122-128). If this sampling reveals a high signal to noise ratio, the integrator output passes through a gate 126 to a second D.C. meter. If a high noise level is revealed, the gate closes and the second D.C. meter indicates the output of a hold circuit (128) which has stored the previous gate output. The apparatus may be modified to give a continuous indication of velocity, Fig.4 (not shown). The integrator output is fed back to the variable oscillator (144) which is voltage controlled and the oscillator output is delivered to a frequency to voltage converter. Another embodiment employs a second variable oscillator in place of the delay line, Fig. 5 (not shown.) Flip-flops (180, 196) are employed as well as integrators to provide a D.C. output.
Patent GB-1166527-A (GB)
Title: Foamable Vinylaromatic Polymers
Inventor: HEALD CHARLES ROBERT
IPC: C08J9/224
Filed: 1967-07-07
Abstract: 1,166,527. Moulding foamed articles. MONSANTO CHEMICALS Ltd. 30 May, 1968 [7 July, 1967], No. 31349/67. Heading B5A. [Also in Divisions B2 and C3] A foamed vinyl aromatic polymer article is produced by preparing a prefoam of foamed particles by steam-heating particles comprising a vinylaromatic polymer, a volatile blowing agent and a primary amide of m.p. 35-115‹ C. and of formula RCONHR<SP>1</SP>, where R is a C 10-24  aliphatic hydrocarbon radical and R<SP>1</SP> is H or a C 1-3  alkyl radical, and treating the prefoam with steam in a mould to produce the required article, e.g. a box in Example 1 and a block in Example 3.
Patent GB-1504839-A (GB)
Title: Fluid delivery systems
IPC: F04B23/12
Filed: 1976-07-28
Abstract: 1504839 Aircraft engine fuel systems; injectors; rotary positive-displacement fluid-machines SUNDSTRAND CORP 28 July 1976 [6 Aug 1975] 31349/76 Headings F1E F1F and F1G A system for delivering fluid, e.g. fuel, from a tank 20 via a control 12 to a utilizing means, e.g. an aircraft engine 15, comprises an ejector pump 22 supplying fluid from the tank to a positive displacement pump 10 part of the output of which is supplied to the power nozzle 32 of the ejector pump, constant flow through the nozzle being maintained by a control valve 41. As shown, the latter is disposed in branch line 40 and comprises a piston 42 subject on one side to the pressure upstream of power nozzle 32, i.e. in by-pass lines 16, 35, and on the other side via lines 50, 51 to the pressure in chamber 31 downstream of the nozzle. Thus a change in the desired flow through the nozzle causes a correcting adjustment of valve 41 and a corresponding alteration in flow through branch 40. This flow passes via auxiliary inlets 45, 46 to the respective pumping chambers of the meshing gears (60, 61) Fig. 3 (not shown) of pump 10, thus assisting the pump to run full. The auxiliary inlets are spaced arcuately by at least one gear tooth from the pump main inlet 25 but may be connected thereto through pressure relief valve 47. In a modification Fig. 5 (not shown), the control valve (75) is provided in a by-pass line (76, 77) additional to by-pass line 16.
Patent GB-673806-A (GB)
Title: Improvements in electrical self-regulating control instruments
IPC: G05D23/22
Filed: 1950-12-27
Abstract: 673,806. Electric condensers. WHEELCO INSTRUMENTS CO. Dec. 27, 1950 [July 14, 1950], No. 31365/50. Class 37. [Also in Group XXXV] Relates to self-regulating control systems for stabilizing furnace temperature or for other purposes of the kind employing a valve oscillator, the oscillatory condition of which is varied by deviation of temperature or other variable from a standard or normal value; and consists in providing means operated by a bimetallic strip for cyclically varying the capacity of a tuned circuit of the oscillator. The variable tuning condenser, Fig. 2, is of small capacity and comprises plates 32, 33 carried on similar bi-metal strips 29, 31. For changes in ambient temperature, the strips flex equally and the capacity is unchanged. Current supplied cyclically to the heater element 34 flexes only the strip 29 and varies the capacity. This current is supplied through a control resistor 38 and a bi-metal switch 36 operated cyclically by a heating coil 37. In a modified arrangement of condenser, Fig. 3 (not shown), the contact 36 for controlling the current supply to the heater 34 is opened and closed by the flexing of the strip 29. The condenser plates 32, 33 may be adjusted towards and away from each other by screws, and adjustable stops 39, 41 may limit the flexing of the plate 29.
Patent GB-341478-A (GB)
Title: Improvements in or relating to bells
IPC: G10K1/064
Filed: 1929-10-16
Abstract: 341,478. Bells. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London.-(Schreiber, L. J. J. and Preud'Homme, E. H. ; 18, Rue Boudewyns, Antwerp, Belgium.) Oct. 16, 1929, No. 31401. [Class 13.] A bell unit comprises a plurality of bell hammers and three or more gongs, one or more of the gongs being adapted to be operated upon by a plurality of the hammers. A single cover may enclose the bell-operating mechanisms and gongs. As shown, applied to a telephone subscriber station wherein two exchange lines terminate, two gongs, 1, 3, are each adapted to be operated upon by a single hammer and bell-operating mechanism only, while a centre gong 2 can be operated upon by both of these bell hammers and operating mechanisms. The gongs are adapted to produce different ringing tones and are so arranged that each hammer operates on a pair of gongs having a different combination of ringing tones. A single cover having one or more vents adjacent each of the gongs, with L-shaped lugs to embrace metal pieces on the base when the cover is in position and a latch to lock it in position is provided.
Patent GB-604045-A (GB)
Title: Improvements in or relating to protecting devices for electric circuits and apparatus
IPC: H01H85/06
Filed: 1945-11-22
Abstract: 604,045. Fusible cut-outs. HOPE, V. Nov. 22, 1945, No. 31432. [Class 38 (i)] A fusible cut-out comprises fusible elements consisting of a pair of high resistance strips 10, 11, adapted to fuse on high overloads, and joined by a low melting-point link 12 whose melting-point is about or above the melting- point of a boric acid capsule 17 with which the fusible elements are surrounded. The boric acid retains the heat generated in the high resistance strips by the passage of the current, holding it ready to assist the fusing of the link 12, which is soldered in holes in the ends of the strips 10, 11. The complete fusible element is enclosed in a tubular insulating casing 18, with metal end-caps 21 to which the ends of the strips 10, 11 are soldered. Specifications 411,861, 572,342 and 582,726 are referred to.
Patent GB-1496636-A (GB)
Title: High velocity burner
IPC: F23D11/24
Filed: 1976-07-28
Abstract: 1496636 Burners ECLIPSE Inc 28 July 1976 [6 Aug 1975] 31478/76 Heading F4T A dual fuel high velocity burner 10 comprises a tubular body 11, an annular partition 40 within the body which forms inner and outer chambers 43, 41, a tube 45 extending through chamber 43, and having a passage 23 for the flow of gaseous fuel, and a passage 33 for alternatively delivering a flow of liquid fuel and atomizing air, a source of combustion air 37 supplying a chamber 41, a series of passages 50 in partition 40 extending substantially tangentially of tube 24 for spinning the combustion air, the inner chamber 43 converging to thus swirl the fuel and flame, and a tubular burner block 15 secured to body 11 and having a bore 16 which converges at 17 to form a nozzle. Gaseous fuel is supplied to the burner from a pipe 19 via a valve 20 and thence through passage 23 to the spaced ports 26 of a nozzle 25. Fuel oil is supplied from a pipe 27 via a valve 29 and thence through a tube 30 to three angularlyspaced apertures 33 in nozzle 31, the atomizing air being supplied through a line 34, and a tube 35, where it is whirled by vanes 36. Combustion air passes from a blower into a pipe 37, and is then swirled in passages 50.