baber/WOPTO huggingface dataset:
Patent GB-434950-A (GB)
Title: Receiving method and arrangement, more particularly for television purposes
IPC: H04N5/16
Filed: 1934-02-05
Abstract: 434,950. Television receivers. ARDENNE, M. VON, 19, Jungfernstieg, Lichterfelde-Ost, Berlin. Feb. 5, 1934, No. 3673. Convention date, Feb. 6, 1933. [Classes 40 (iii) and 40 (v)] Variations in the directcurrent component of the signals are transmitted to the light-control element 9, as well as the alternating potential. After preliminary amplification 2, received short-wave signals are mixed with local oscillations 3. The resultant intermediate frequency is amplified aperiodically and passed to a second rectifier 7 by a transformer 6, which passes the intermediate carrier and at least one side band without distortion, but does not pass unmodulated television and low-frequency signals. The control electrode 9 of a cathode-ray tube is coupled directly to the rectifier 7 by a resistance and capacity 8 in parallel having a time constant with a reciprocal equal to the frequency at which the maximum slope of the side of the response curve of the transformer 6 is situated. This prevents high-frequencies reaching the tube. The rectifier 7 is separate from the highfrequency part of the receiver, and is supplied from a separate high-tension source. The transformer 6 may be replaced by a filter with a steep side to its response curve and with the maximum slope midway between the lowest intermediate frequency and the highest television frequency. The rectifier 7 may be followed by a directly coupled output stage.
Patent GB-481690-A (GB)
Title: Improvements in the manufacture of fibres from glass and similar meltable materials
IPC: C03B37/02
Filed: 1937-02-08
Abstract: 481,690. Making glass fibres. EDWARDS, A. E. (Naamlooze Vennootschap Maatschappij tot Beheer en Exploitatie van Octrooien) Feb. 8, 1937, No. 3695. [Class 56] In the manufacture of fibres by subjecting a stream of molten glass to a blast of steam or other gas, cooling of the stream before it is acted on by the blast is prevented. For example, the stream may pass through a heating chamber 15 on its way to the blast nozzle 20 or the blast may consist of burning gases. A cup 26 may be provided to give a back pressure for supporting the emerging strearn. In other cases, the blower is arranged against the bottom of the boot or close to it, the entry of atmospheric air into the blast being prevented. The floor of the boot may be provided with a refractory bushing formed to cause the glass to emerge in a number of separate streams, Figs. 6 and 7 (not shown). In a further modification the glass is allowed to emerge in separate streams by an adjustable plug 13<1> having a central passage down which air, steam &c., may be blown to convert the streams into fibres with or without a co-operating blower and heating means as shown in Fig. 4. Specilication 428,720 is referred to.
Patent GB-665370-A (GB)
Title: Improvements in and relating to multi-position electric switches for use with heating units
IPC: H01H19/63
Filed: 1949-02-10
Abstract: 665,370. Mechanical switches. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 10, 1949. [Feb. 10, 1948] No. 3696/49. Class 38 (v). [Also in Group XXXV] A rotary switch for controlling the connection of a heating unit having two sections to a threewire supply (see Group XXXV) comprises a cam disc 93 acting on plungers 105 ... 108 arranged between the disc and contact fingers 22 ... 25. Each finger is connected to a load terminal 30, 31, 32, 38, the latter also being connected to a bus-bar 33 extending over the fingers 23 ... 25. The bus carries two fixed contacts (not shown) co-operating with the rear faces of fingers 23, 24, respectively, and load terminals 39 ... 41 carry fixed contacts 51, 52, 54, 56 co-operating with the front faces of the fingers 22 ... 25 respectively. The fingers are urged to the left (Fig. 3) by their own resilience so that contacts 22, 51 and 25, 56 and 23, 52 and 24, 54 are normally open and contacts 23, 24 normally engage their corresponding busbar contacts. The disc 93 has four concentric sets of depressions 93W, 93X, 93Y, 93Z, co-operating respectively with plungers 107, 106, 108 and 105, and separated by flats 93a, 93b, 93c, 93d. Rotation of the cam thus causes various combinations of the fingers to be actuated by the plungers to give the different connections required. The disc 93 is fixed to a shaft 82 having a hexagonal nut 91 co-operating with blade springs 92 to position the shaft.
Patent GB-1487571-A (GB)
Title: Electrical contact
IPC: H01R13/115
Filed: 1974-01-26
Abstract: 1487571 Edge connector AMP Inc 2 Jan 1975 [26 Jan 1974] 03714/74 Heading H2E A contact for a p.c.b. edge connector comprises channel shaped arms 3, 4 having respective slits 10 and contact portions 11, a flanged aperture 6 for mounting purposes and a tongue 7 for latching the contact in a housing. The arms 3, 4 are substantially non-resilient and high contact pressures can be obtained. A crimping female 1 may also be provided at the end of web 6 remote from said arms.
Patent GB-733665-A (GB)
Title: Improvements in or relating to impedance transforming cavity resonator to waveguide couplings
IPC: H01P5/08
Filed: 1953-02-11
Abstract: 733,665. Magnetrons. STANDARD TELEPHONES & CABLES, Ltd. (International Standard Electric Corporation). Feb. 11; 1953, No. 3838/53. Class 39 (1). [Also in Group XL (b)] A magnetron 4 is matched to a wave-guide 7 by a pair of transformer vanes 10, 11 whose adjacent edges 12, 13 run parallel to each other for a distance #/4 adjacent the coupling slot 6 and then gradually diverge towards the walls of the guide 7. The parallel and divergent portions may be separated by a discontinuity in the form of a shoulder (not shown). The axis of the coupling slot 6 may lie at an angle to the axis of the guide 7 to prevent electrons escaping into the guide. The magnetron and the guide are sealed by a dielectric window.
Patent GB-1025460-A (GB)
Title: Improvements relating to armchairs
IPC: A47C7/54
Filed: 1965-01-28
Abstract: 1,025,460. Arm rests. LADY J. A. M. LAWRENCE, [trading as LEED MANUFACTURING CO.]. Jan. 28, 1965, No. 3869/65. Addition to 981,322. Heading A4J. An armchair arm rest comprises a replaceable block 32 frictionally held in position on a base 31 by a wall surround 33, 34 which is either discontinuous in length as shown or in depth Figs. 5 and 6 (not shown).
Patent GB-181413-A (GB)
Title: Process for agglomerating pulverous material
IPC: B01J2/12
Filed: 1921-02-02
Abstract: 181,413. Thorssell, C. T., and Troell, O. Feb. 2, 1921. Rolling-machines ; processes.-Consists in passing the material in a wet condition through two systems of heated, rotating cylinders, in the first of which the mater al is dried to a degree appropriate for agglomeration, whilst in the second the degree of humidity is maintained constant whilst the material is agglomerated into spherical grains by means of gases containing steam. The agglomerated material may be passed through a third system wherein the shaped material is dried, the steam being passed back to the second system to assist in maintaining the desired degree of humidity.
Patent GB-1458303-A (GB)
Title: Synchronous multi-purpose counter
IPC: H03K21/00
Filed: 1974-01-29
Abstract: 1458303 Electronic counters; shift registers TAKEDA RIKEN KOGYO KK 29 Jan 1974 [9 Feb 1973] 03978/74 Headings G4A and G4C Each stage (after the first) of a counter comprises a J-K flip flop FF2-FF4; a first gate G1 or G2 connected to receive the outputs of all previous stages and supply an input to the J-terminal of the flip flop; a second gate G2 or G3 or G4 connected to receive a setting input and supply an input to the J-terminal; a third gate Ga connected so as to apply to the K- terminal the same signal as is at the J-terminal; a fourth gate Gs connected to supply to the K- terminal the complement of the signal at the J- terminal; means 7 for applying a clock signal to the clock inputs C of the flip flops; means for applying a count control signal to enable the first and third gates only so that the counter counts clock pulses; and means for applying a setting control signal to enable the second and fourth gates so that the count is changed to the value at the setting input. The first stage of the counter omits the third gate Ga. In Fig. 2 gates G1 receive the Q output of the preceding flip flops and when enabled with gates Ga cause the counter to count up while gates G2 receive the Q outputs and therefore cause the counter to count down. Gates G3 receive a presetting input - t 1 -t 4  and when enabled with gates Gs cause the count to change to the preset value. Gates G4 receive the Q outputs of the preceding stages and when enabled with gates Gs cause the counter to act as a shift register shifted by the clock pulses. Gates G5 receive the Q ouput of the same stage and when enabled with gates Gs cause the count to change to its complementary value. Enabling pulses for gates Ga are derived from UP and DOWN enabling pulses at 17, 18 by an OR gate 21; otherwise gates Gs are enabled via an inverter 22. Clock pulses at 7 are applied via an AND gate 16 enabled via an OR gate 23 only when an enabling input is applied at 17-20 to one of the gates G1-G5. The outputs of gates G1-G5 are connected via a wired OR circuit and an inverter 15 to the J- inputs; this may be replaced by NOR gates (Fig. 4, not shown).
Patent GB-1445347-A (GB)
Title: Fuel control apparatus for gas turbine engines
IPC: F02C9/26
Filed: 1973-01-26
Abstract: 1445347 Gas turbine jet propulsion engines LUCAS INDUSTRIES Ltd 19 Nov 1973 [26 Jan 1973] 3983/73 Heading F1J A fuel control apparatus for a gas turbine engine comprises a fuel pump supplying fuel via a variable metering device to the engine, a servo pressure control arrangement including a valve movable in response to a pressure drop across the variable metering device to vary a servo pressure signal, a throttle for controlling the delivery pressure of the pump and movable in response to the servo pressure signal, and means responsive to the position of the throttle and operatively connected to the servo pressure control arrangement for causing the latter to vary the servo pressure signal in a sense to oppose the throttle movement. Fuel is supplied to the reheat burners of a jet engine 11, Fig. 1 by an enginedriven vapour-core centrifugal pump 10 via a variable metering device 16 which is substantially the same as that described in Specification 1423361. The valve spool 18 of a servo pressure control device 14 is urged to the right by the pressure drop across the metering device 16 and to the left by an engine-driven governor 19. The spool 18 controls a servo pressure Ps which is applied via a line 13 to one side of a piston, the other side of which is subjected to the pump delivery pressure via a line 17, so as to control the position of a throttle valve 12 at the pump inlet. Negative feedback is provided via rack and pinion 22, 23 shaft 24, lever 25 and spring 26, whereby movement of the throttle valve 12 in response to a change in the position of the spool 18 produces a force on the spool opposing the change. Fig. 2 shows a modified control device 14 in which the feedback signal from shaft 24 is applied to a piston 30 via a lever 29 or a cam and follower, Fig. 3 (not shown). A slave piston 31 is connected to the spool 18 by a spring 32. Ports 33, 34 are inter-connected by a passage 35, and a port 36 is connected to line 27 by a passage 37, the positions of the ports in relation to the length of the piston 31 being such that movement of piston 31 by a substantial amount in either direction will cause it to be by-passed, whereby the force which can be applied to spool 18 by spring 32 is limited. Since ports 34, 36 can combine with associated edges of piston 31 to form flow restrictors, the amount of movement of piston 31 is dependent on its rate of movement and therefore on the rate of movement of the throttle valve 12, whereby a velocity term is provided in the feedback signal. In the modified control device shown in Fig. 5, the feedback lever 49 is connected to a ported control sleeve 51 surrounding the spool 18. As shown, the sleeve 51 may have a closed end 52 to form a closed chamber containing a spring 53 and a piston 54 having its ends inter-connected by a restricted passage 55, whereby a velocity term is again provided in the feedback signal.
Patent GB-589076-A (GB)
Title: An improved plastic composition
IPC: C08L61/24
Filed: 1944-03-03
Abstract: A plastic composition suitable for the manufacture of wall boards is made by spraying dry sawdust, wood flour, pulverized wood or wood factory waste or a mixture of these substances, with both calcium chloride and copper sulphate solutions, mixing therewith pulverous or fibrous, or pulverous and fibrous fillers up to equal proportions by weight of the wood waste, mixing in urea-formaldehyde resin in proportion from one-tenth to one-twentieth by weight of the combined fillers and wood waste and compressing the mixture at a pressure of 15-50 lbs. per square inch to provide a rigid coherent sheet.  The wood waste may initially be sprayed with dilute formaldehyde and and alcohol such as methyl alcohol, and then 1 per cent. of sulphur, 1 per cent. of zinc oxide or 2 per cent. of creosote oil optionally added.  The fillers may be slate dust, brick dust, sand, ash, asbestos, hair, or vegetable fibres such as jute or coir.  An accelerator such as formic acid or hydrochloric acid or a hardener such as sal ammoniac may be added to the urea formaldehyde resin. The sheets may be reinforced by wires, netting, expanded metal or perforated metal sheet, and may be dyed.
Patent GB-234026-A (GB)
Title: Improvements in or relating to tractor hitches
IPC: B60D1/07
Filed: 1925-02-12
Abstract: 234,026. Witsberger, W. Feb. 12, 1925. Couplings for tractors. -- A ball is retained between complementary seatings in a plate like bracket 2 and a retaining member 1, the bracket 2 being secured to the tractor or to the trailer and the member 1 being secured to the bracket. The ends of a pivot pin 8 passing through the. ball are secured in a fork 11 forming part of a draught pole. In a modification, the bracket forms a projection form a part adapted to be mounted upon the differential housing of a tractor.
Patent GB-267285-A (GB)
Title: Improvements in indicators comprising carry-over gear, such as is used in counting instruments, for use in signalling
IPC: G06M3/10
Filed: 1926-02-13
Abstract: 267,285. Barr & Stroud, Ltd., Strange J. M., and MacGill, C. D. Feb. 13, 1926. Transfer - mechanism. - In an apparatus for indicating progressive numbers step-by-step in a continuous manner in positive and negative directions, the numerals on the highest drum are arranged in two or more circumferential rows and the particular row or combination of rows to be read is selected automatically by an apertured shutter controlled by the drum through transfer-mechanism. As shown applied to a gun-laying receiving-instrument, the counter comprises drums D, D<1>, D<2> actuated from a pinion 5 through transfer wheels 6, 8, 9, 10 and inscribed with numerals reading from 0‹ to 360‹ by quarters of degrees. The last drum D<2> is graduated from " blank " to 35 to denote tens of degrees and the numerals may be arranged in three rows as exemplified by the developed view given by Fig. 5. Surrounding the drum is a cylindrical shutter E apertured as shown in Fig. 6 and geared by transfer-mechanism 26, 28, 29, 30 with the drum. When one series of numerals, say " blank " to 11 visible through aperture A, is exhausted, the shutter moves so as to expose through apertures B, B the shaded numerals 12 - - 23 and if the drum completes another turn the final row 24 - - 35 may be read through the openings C, C. Specification 126,436 is referred to.
Patent GB-736618-A (GB)
Title: Process for the acylation of cellulose
IPC: D06M13/256
Filed: 1953-02-16
Abstract: Cellulose is subjected to esterification, under conditions such that its fibrous structure is retained, with an acylating mixture which contains as a catalyst a reaction product of sulphuric acid (or a derivative thereof containing a sulphuryl radical, or a salt thereof) with an acylating agent, and which does not split off sulphate ions after addition of water or dilute mineral acid on boiling, and which also contains an acid amide soluble therein or a compound which gives such an acid amide when dissolved in the acylating mixture.  The catalyst may be produced in the acylating mixture, before use, by adding to the mixture sulphuric acid or a derivative thereof and allowing the mixture to stand at raised temperature until sulphate ion is no longer detectable therein. Sulphamic acid may be used as sulphuric acid derivative and in this case there is produced in the acylating mixture both the acid amide and the catalyst at the same time, i.e. diacetamide and sulphoacetic acid.  As acylating agents there may be used acetic acid and acetic anhydride and as acid amides there may be used acetamide, diacetamide, propionamide, acetanilide, urea and toluene sulphonamide.  Preferably the acylation may be carried out with a mixture which contains the reaction product of 1 mol. of sulphamic acid and 2 mols. of a carboxylic anhydride.  In an example, sulphuric acid is stirred into acetic anhydride and the temperature is allowed to rise to 60 DEG  C.  The mixture is then stirred for several minutes at 70 DEG  C. until a sample diluted with water gives no clouding on addition of barium chloride. Acetamide, glacial acetic acid and carbon tetrachloride are then stirred into the solution after cooling it to 30 DEG  C.  Bleached cotton yarn is pretreated with acetic acid at 40 DEG  C. and then esterified with the mixture containing acetamide.  The resulting yarn has an acetic acid content of 53.4 per cent.  In another example, unbleached sulphate pulp is treated with acetic acid and then pressed into sheet form.  It is then esterified with a mixture obtained by dissolving sulphuric acid in acetic anhydride, heating for several minutes at 65-70 DEG  C. and then adding glacial acetic acid and urea.  In another example, 2-amino-ethyl-sulphuric acid is heated with acetic anhydride until the acid has dissolved. A further quantity of acetic anhydride is added together with glacial acetic acid.  The mixture is used for the acetylation of cotton yarn.  Specification 280,493, [Class 2 (ii)], is referred to.
Patent GB-325985-A (GB)
Title: Manufacture of esters of 2-phenylquinoline-4-carboxylic acid and its homologues
IPC: C07D215/52
Filed: 1929-02-08
Abstract: 325,985. Stephens, A. J., (Wulfing, R. von, and M÷ller, E., [trading as Wulfing, J. A.]. Feb. 8, 1929. Esters.-The n-propyl, n-butyl and isobutyl esters of 2-phenylquinoline-4-carboxylic acid and its 6-methyl- or 6:8-dimethyl derivatives are prepared by heat treatment of the acid with a multifold quantity of n-propyl-, n-butyl- or isobutyl-sulphuric acid. The products, which are tasteless, possess therapeutic properties. Examples are given. Specifications 150,401, 167,066 and 279,745 are referred to. 6-Methyl-2-phenylquinoline-4-carboxylic acid is prepared by condensing p-toluidine, benzaldebyde and pyruvic acid in alcoholic solution, or by heating 5-methylisatin with acetophenone in caustic alkali. 6 : 8-Dimethyl-2-phenylquinoline - 4 - carboxylic acid is obtained by condensing 5 : 7-dimethylisatin with acetophenone in the presence of caustic alkali.
Patent GB-173982-A (GB)
Title: Improvements in and relating to discharge apparatus for lime kilns and the like
IPC: F27B9/38
Filed: 1921-02-07
Abstract: 173,982. Dumont, P. Feb. 7,1921. Discharging.-Lime kilns &c. are provided with discharge hoppers 2 arranged round their base, whence the material is deposited on fixed platforms beneath. From these platforms it is swept off by scraper bars 15 attached to a rotating frame, mounted on wheels 10, which also carries an annular grid or screen 14 and a platform 12 beneath it. The coarser material is retained on the screen until removed bv a fixed scoop which delivers it to a travelling band 21. A similar scoop or scraper similarly removes the finer material from the platform 12. The length of the scraper bans may be varied to regulate the discharge.
Patent GB-235611-A (GB)
Title: Improvements in and relating to the manufacture of packets and the like
IPC: B65B11/12
Filed: 1924-02-20
Abstract: 235,611. Boots Pure Drug Co., Ltd., and Barton, F. H. Feb. 20, 1924. Creasing. - Relates to machines for packeting powders and the like and of the type in which paper is continuously fed to a supply of power &c., and in which predetermined lengths are cut and adapted to be formed into packets. The paper is fed between upper plate members 2, 3 and lower members 4, 5, of which the rear members 2, 4 are stationary and the front members 3, 5 adapted for vertical reciprocation. During the downward movement of the parts 3, 5 knives 4, 7 sever a wrapper from the web, and a length is fed forward so that during the next upward movement a bar with a knife-edge 9 presses the web into a recess 8 and creases the paper transversely. The movements are caused by a cam 16, a recess 23 in which cause the cutting movement and two projections 24 cause two transverse creases. After a packet has been formed, longitudinal creases to define the end folds are formed by rollers 45 with ridges 45<a>.
Patent GB-109937-A (GB)
Title: Improvements in Internal Combustion Engines.
Inventor: HIBI KATSUHARU
IPC: F02B19/02
Filed: 1917-03-28
Abstract: 109,937. Hibi, K. March 28, 1917. Cylinders receiving liquid fuel.- During the compression stroke, air is admitted to a chamber 3 from t h e combustion chamber through a valve 2, and fuel through a valve similar to 4 but not shown. This charge ignites spontaneously and is allowed to escape into the cylinder during the working stroke through the valve 5 and nozzle 11 and to carry with it the remainder of the charge which has been admitted to the chamber 7 through a valve 8. The valve 4 is a scavenging air valve. The plug D also contains a starting-air valve which is not shown. The fuel admitted to the chamber 3 may be easy to ignite, and that admitted to the chamber 7 difficult.
Patent GB-1427623-A (GB)
Title: Curtain or drape suspension arrangements
IPC: A47H1/04
Filed: 1973-01-30
Abstract: 1427623 Suspending curtains SWISH PRODUCTS Ltd 16 Jan 1974 [30 Jan 1973]  4534/73 Heading A4B A curtain rail comprises a first part 19 which is substantially semi-tubular and includes formations 21-24 which resiliently grip a second rail part 11  provided with a first T-section slot 13 to slidably receive the heads 26 of curtain runners 15 and a second T-section slot 14 to receive and grip the resilient head 16 of wall mountable support brackets 17. Two rail sections may be connected end to end by inner and outer part-cylindrical elements joined at their mid length by a circumferential web against which the ends of adjacent sections bear. The runner carries an arcuate part 25 simulating a curtain ring and pivotally supports an arm 29 with an eye 33 to receive a curtain hook. The runner includes a cylindrical neck 27 which engages with the mouth of the slot 13 to prevent tilting of the runner about a horizontal axis transverse to the rail.