baber/WOPTO huggingface dataset:
Patent GB-379034-A (GB)
Title: Improvements in or relating to lead in wires for incandescent lamps, radio tubes andsimilar devices
IPC: H01J5/46
Filed: 1931-06-23
Abstract: A wire to be welded to the wire which passes through the glass seal of a thermionic valve, incandescent lamp, &c., consists of manganese-deoxidized copper containing from 0.001 per cent to 0.2 per cent of manganese.  The wire is made by melting copper and deoxidizing it with manganese in sufficient quantity to leave the required amount of manganese in the copper after the pouring and casting operations.
Patent GB-346224-A (GB)
Title: Improved manufacture of starches swelling in cold water
IPC: C08B30/12
Filed: 1930-06-13
Abstract: Starches and starch-like substances swelling in cold water are made by heating, with the simultaneous use of mechanical pressure, starches such as wheat, maize, rice, barley, potato, chestnut and banana starches, or starch preparations such as arrowroot, or starch-like substances such as inulin, or starch-containing substances such as grains or tubers or pre-treated starch such as slightly disintegrated starch or soluble starch, these starting materials having a water content below 25 per cent.  Substances which reduce the temperature at which ordinary starch is converted into paste, such as urea and its derivatives, chloral hydrate, thiocyanates and calcium halides, may be added.  The properties of the final product may be modified by the addition before, during or after the treatment, of alkaline or acid substances, salts such as carbonates and borates, substances which decompose starch such as hydrogen peroxide, acid salts, persalts and enzymes such as maltase and amylase, or starch-coagulating substances such as boric acid, borax, calcium borate, sodium phosphate, tannic acid and its salts, soaps of the fatty and resin acids and aluminium compounds such as alum, aluminium sulphate and alkali aluminate.
Patent GB-314215-A (GB)
Title: Improvements relating to appliances for playing ball games
IPC: A63F7/00
Filed: 1928-06-23
Abstract: 314,215. Page, E. J. June 23, 1928. Ball games.-An apparatus, which may be coin-freed, for use in playing ball games comprises an enclosure provided at an intermediate position with a table upon which the balls have to be thrown from one end of the enclosure so as to rebound into a target receptacle, or into one of a number thereof, provided at or adjacent the opposite end of the enclosure, means being provided for preventing or for reducing the possibility of balls being thrown directly into the targets or being caused to rebound thereinto from any other surface but that of the table. The player stands on a platform 25 and throws or bats rubber balls through an opening 4 so as to bounce from a raised table 13, through an opening 22 into targets 15, 20 arranged upon a slope 16. Inaccurately-directed balls are led by channels 10, 11 to a side channel 12 leading to the front of the apparatus whilst balls entering the targets pass to a channel 18. The table 13 is surrounded by padding 14. A baffle 24 prevents balls from returning to the player, and inclined ribs 23 deflect balls thrown directly through the aperture 22. The balls passing to the foot of the target channel 18 operate electric switches therein and, as the balls accumulate, extinguish a corresponding number of scoring lamps 28. The channels 12, 18 have a common outlet from which the balls may be obtained by a known coin-freed mechanism.
Patent GB-331363-A (GB)
Title: Improvements in fishing nets provided with wing stretchers
IPC: A01K73/05
Filed: 1929-06-13
Abstract: 331,363. Vigneron, J. B. J. A., and V. D., Ltd. June 13, 1929. Coupling and capping; stops; eyes and loops.- In ground fishing-nets, the net and ground cables are so attached to the bottom of the wing stretchers that the stretcher does not project below the cables which ane protected by metallic members adjacent the stretcher. The member may consist of a casing adapted to receive an eye, Fig. 4, or knot, Fig. 8, or a spliced or enlarged end on the cable, the casing being connected to the stretcher by shackles or plates. In another form, Fig. 11, the cable 7 passes through a shoe 10 on the stretcher 3 to a tube 14 receiving the cable 6. The cable ends may be spliced and held within a tube 42, Fig. 15, connected by a swivel pin 43 and shackle 34 to a skate 32, the stretcher socket 40 being pivoted to the skate. The socket or skate may have lugs to limit the movement of the stretcher, and the skate may be replaced by a link 53, Fig. 21, which mav have one side flat to slide on the ground. In Fig. 22, the socket 50 is mounted between stops 55 secured upon a continuous cable.
Patent GB-359398-A (GB)
Title: Manufacture of arylated safranines
IPC: C09B17/02
Filed: 1930-06-16
Abstract: Safranine dyes are arylated by allowing an arylating agent to act on the leuco-compound or by arylating the dye in the presence of a metallic reducing agent, and, if necessary, oxidizing to the dyestuff.  Among the dyes which may be obtained are diarylphenosafranines substituted in the aryl nuclei such as the diamino-diarylphenosafranines.  The dyestuffs thus obtained dye silk and tanned cotton violet to sky-blue shades and the acid dyestuffs obtained by sulphonating the dyestuffs dye silk and cotton similar shades.  In examples, (1) Phenosafranine is dissolved in a mixture of aniline and dry aniline hydrochloride and zinc dust is added.  The mixture is then heated, cooled, filtered to remove the zinc dust and a current of air is passed through and the zinc solution is poured into dilute hydrochloric acid giving a precipitate of the dyestuff diphenylphenosafranine. (2) Diethylsafranine is treated in a similar way to example (1), alcohol being added after the cooling to facilitate the removal of the zinc dust, the alcohol being subsequently distilled off prior to the precipitation of the dye. (3) Phenosafranine is dissolved in a mixture of p-toluidine and p-toluidine hydrochloride and zinc dust added.  The mixture is boiled and treated as in example (2) to give the ditolylphenosafranine; p-chloraniline, 1 : 2-dimethyl-4-aminobenzene or p-phenetidine may also be used as arylating agents.  (4) Phenosafranine is dissolved in a mixture of a -naphthylamine and a -naphthylamine hydrochloride and treated as in example (2) to obtain the dinaphthylated safranine. (5) Phenosafranine is dissolved in molten phenol and after treatment with zinc dust the mixture is heated with p-phenylenediamine and p-phenylene-diamine hydrochloride [or with the corresponding m-compounds], cooled, alcohol added and the mixture filtered; air is blown through, the alcohol is distilled off and the solution is run into ice-cold dilute caustic soda and the dyestuff which is precipitated is filtered off; the dyestuff is extracted with dilute hydrochloric acid and common salt is added to the acid filtrates giving a precipitate of p-p1-diaminodiphenylphenosafranine (or the corresponding m-m1-diamino compound).  (7) Phenosafranine is dissolved in phenol and after zinc dust has been added m-toluylenediamine is added and the mixture is worked up as in example (5) to give the m - m1 - diaminoditolylphenosafranine.  (8) Phenosafranine is dissolved in o-toluidine and o-toluidine hydrochloride and after zinc dust has been added the mixture is heated, cooled, mixed with alcohol and filtered to separate the zinc dust.  The alcohol is distilled off and the filtrate is poured into dilute hydrochloric acid to separate the o-o1-ditolylphenosafranine.
Patent GB-1208363-A (GB)
Title: Workbench
Inventor: KUEMMERLIN WALTER
IPC: B27B13/04
Filed: 1968-04-18
Abstract: 1,208,363. Workbenches. W. KUMMERLIN. 18 April, 1968 [18 April, 1967; 2 April, 1968], No. 18410/68. Heading B4X. [Also in Division F2] A workbench comprises at least two uprights each consisting of two spaced supports interconnected by at least one cross-piece 2, and having sockets 1 into which depending members of a work-supporting surface formed with spherical rollers (Fig. 5), are telescopically inserted to form legs of the bench. The crosspieces may have stirrup legs 4 to provide extra support. The rollers of the work-supporting surface may be mounted individually (Fig. 4, not shown), in bearing-containing housings, or the bearings mounting each roller may be mounted adjacent each other on a member (22), (Figs. 6 and 7, not shown), housed beneath the rollers.
Patent GB-256221-A (GB)
IPC: H02P7/00
Filed: 1926-07-23
Abstract: 256,221. British Thomson-Houston Co., Ltd., (Assignees of Standerwick, R. G.). July 30, 1925, [Convention date]. Governors, regulating.-A control arrangement for altering the direction and speed of running of alternating-current motor, without opening or closing a circuit, comprises four windings A - -D connected to the motor armature 5 so as to constitute a Wheatstone bridge, and a movable magnetic core 26 whereby the ratios of the inductances of the arms of the bridge can be varied at will on either side of the balanced condition. The field winding 6 remains constantly excited. The invention may be applied to the automatic control of a steam turbine, by causing the exhaust steam to actuate a device controlling an electric motor which varies the spring tension of a speed-governor controlling a steam admission valve.
Patent GB-319647-A (GB)
Title: Improvements in or relating to electrical resisting bodies
IPC: H01B1/00
Filed: 1928-06-25
Abstract: 319,647. Carborundum Co., Ltd., (Carborundum. Co.). June 25, 1928. Resistance materials. -Non-metallic resistance rods, e.g. of silicon carbide or graphite, have applied thereto a protective coating which glazes between 1100‹ C. and 1750‹ C. and is a mixture of oxides, oxides and halides or of an oxide and a halide and substantially free from silica. Alternatively the protective material is mixed with the conducting material forming the rod, in which case the protective composition comprises alumina with titanium oxide or alkaline earth halides, the alumina comprising at least 70 per cent of the mixture. Examples of suitable mixtures are given in the Specification. Specifications 19184/94, [Class 39, Electric lamps &c.], 22036/07, and 228,142 are referred to.
Patent GB-1284797-A (GB)
Title: Improvements relating to fuel-injection nozzle assemblies for internal combustion engines
Inventor: TRAUB WERNER
IPC: F02M45/08
Filed: 1970-04-17
Abstract: 1284797 I C engine fuel injectors DAIMLERBENZ AG 17 April 1970 18468/70 Heading F1B A needle valve 6 in a hole or throttling pintle type of nozzle 4 is opened by the injection pressure against the force of two springs 7 and 8 which load the valve independently in succession. The spring 7 acts through members 9 and 10 and is prestressed for valve opening at a predetermined pressure (P 1 ), Figs.2 to 5 (not shown). The spring 8 acts through sleeve 13 and members 9 and 10 and is pre-stressed to permit further valve lift at a predetermined higher pressure (P 2 ), Figs.2 to 5 (not shown) with member 10 abutting the sleeve. The sleeve 13 is prevented from inward movement by the spring 8 by the pin 11 and member 12 bridging the member 9 and bearing on the part clamped between the holder 1 and the nut 5. The force/deflection characteristic (C 1 ), Figs.2 and 4 (not shown), of the spring 7 may have a greater or smaller slope than the characteristic (C 2 ) of the spring 8.
Patent GB-166529-A (GB)
Title: Improvements in tipping mechanism for cigarette machines
IPC: A24C5/58
Filed: 1921-07-07
Abstract: 166,529. Endless Belt Corporation, (Assignees of Grupe, W. F.). July 16, 1920, [Convention date]. Cigarette -tipping machines.-A strig 56 of cork or like tipping material is drawn from a drum 50 over guide rollers 52, 53, 55, a gumming roller 54, a tension roller 62, a perforated vaccum drum 12, is cut into short lengths by knives 82 on a rotary drum 78, and the gummed lengths 94 are applied at intervals to the cigarette paper 5 by a reciprocating movement of the drum 65 and a rubber roller 83 which is also raised and lowered bv a lever 84 and cam 88. A table 11, carrying the drum 12 and roller 83, is reciprocated by a cam 28, lever 21, toothed segment 19 and rack 18. The shafts 29, 13 are driven from the main shaft 34 by screw gearing and a telescopic shaft 42, 49 which allows for the reciprocating motion of the table. Air is exhausted from a space between a hollow sector block 69 and the drum 12 through a passage 70 and pipe 71. The gum receptacle 57 is adjustably suspended by screws 68 through slotted arms 67a. The cigarette paper 5 passes on a belt 35 to the tobacco-feeding hopper 2. Each cork length may be cut across 'when the tube is filled with tobacco to form two mouthpieces. A brush 91 cleans the knives 82.
Patent GB-877056-A (GB)
Title: Preparation of sulphonamides
IPC: C07C311/37
Filed: 1958-06-10
Abstract: Disulphamoyl aniline compounds of the general formula <FORM:0877056/IV (b)/1> in which R1 is halogen (e.g. Br, Cl, F) C1-C5 alkyl or alkoxy or nitro or amino and R2 is hydrogen or a C1-C5 alkyl group are made by chlorosulphonating an aniline compound of the formula <FORM:0877056/IV (b)/2> wherein R3 may be hydrogen or a C1-C6 alkanoyl group, by reacting with chlorosulphonic acid, heating the reaction mixture in the presence of a chlorinating agent containing phosphorus or sulphur, e.g. thionyl chloride, sulphonyl chloride, phosphorus trichloride or phosphorus pentachloride and treating the resulting disulphonyl chloride with ammonia.  Preferably, the initial reaction with chlorosulphonic acid is carried out at 125-130 DEG C., the reaction mixture is then cooled, at least two moles of the phosphorus- or sulphur - containing chlorinating agent are added and the reaction is continued by heating below the boiling point of the chlorinating agent, quenching with water and treating the separated disulphonyl chloride with at least 4 equivalents of ammonia in a solvent such as water, methanol, benzene, isopropanol or t-butanol. Specifications 826,922 and 826,924 are referred to.
Patent GB-753195-A (GB)
Title: Motor control system for monophase and polyphase alternating-current motors
IPC: H02P27/04
Filed: 1954-06-24
Abstract: 753,195. Control of A.C. motors. HUWYLER, A. June 24, 1954 [May 26, 1954], No. 18585/54. Class 38(3) A single or polyphase motor is supplied at variable frequency by a frequency changer of which the motor has polechanging windings and drives through a variable ratio gear. The main motor, not shown, is supplied by generator 9 driven by motor 11 through gearing 10 the ratio of which is changed by split-phase motor 12 whose energization and direction of rotation are determined by a relay 18 connected in a bridge circuit controlled by potentiometer 14 whose operating handle controls segmental switchs 29a, 29b for changing the pole numbers of motor 11. The bridge circuit also includes a resistance 19 coupled to the variable speed gear shaft. The frequency change and gearing may be in a common housing through which cooling air is passed. The gear adjusting motor could alternatively be D.C. The control gear includes provision for supplying the motor. from the standard frequency supply when desired.
Patent GB-455939-A (GB)
Title: Improvements in valves for bleaching kiers and the like
IPC: F16K51/00
Filed: 1935-06-29
Abstract: 455,939. Valves. HUNT & MOSCROP, Ltd., and CALVERT, G., Central Iron Works, Middleton, Lancashire. June 29, 1935, No. 18648. [Class 135] A valve device for insertion in the liquor supply pipe to a bleaching kier or the like comprises a hollow tube D closed at one end d2, adapted to be raised and lowered in a casing E between a valve seating e<2> and the end of the liquor supply pipe B or a junction piece connected thereto whereby when the closure member is in contact with the seating the valve will be closed and the continuity of the passage leading to the kier will be broken. The part of the casing immediately above the valve seat is enlarged to form a chamber E<2> connected by ports d<3> with the interior of the valve member. The upper part of the valve member is provided with a flange d carrying a packing d<1> and connected by rods f<2> to a ring f mounted in a groove in the boss of a screwed actuating sleeve engaging a thread on the outside of the casing. The valve casing is secured to the member B by a series of long bolts engaging flanges on the two parts.
Patent GB-531093-A (GB)
Title: Starch hydrolysis
IPC: C13K1/06
Filed: 1939-06-27
Abstract: 531,093. Hydrolysis of starch. UNION STARCH & REFINING CO. June 27, 1939, No. 18704. Convention date, July 5, 1938. [Class 127] In hydrolysing starch to form dextrose, the usual reversion products formed during such hydrolysis are added to the starch being treated, e.g. in equilibrium quantities to prevent or reduce the formation of fresh reversion products during the reaction thereby allowing substantially theoretical yield of dextrose to be obtained, or if excess reversion products above equilibrium amount bo added further dextrose may be obtained therefrom. In an example a 12‹ BÚ suspension of corn starch was hydrolysed with 120 lb. of muriatic acid per 2,200 gallons of suspension and commercial hydrol added.
Patent GB-810413-A (GB)
Title: Improvements in or relating to mineral mining machines
IPC: E21C27/02
Filed: 1957-06-13
Abstract: 810,413. Mineral-mining apparatus. WILCOX, A. G. June 13, 1957, No. 18718/57. Class 68(1) A short wall, mineral-mining machine has a chassis that can be advanced towards and sideways of the face to be mined. Thus the auger or augers mounted at the front of the chassis can be sumped into the face and then moved through the face to mine out a strip of mineral. The auger or augers are so mounted on the chassis that they can be moved vertically of the chassis to mine out mineral at more than one level. Two specific constructions of the machine are described.
Patent GB-181995-A (GB)
Title: Improvements in or relating to bed cupboards
IPC: A47C17/46
Filed: 1921-07-11
Abstract: 181,995. Kramers, G. H. July 11, 1921. Cabinet bedsteads.-A bedstead 6, when folded, rests on the floor of the cupboard on rollers 7, 8. When the bedstead 6 is to be swung down ready for use, it turns first on the rollers 7, 8, and then on spring rollers 9 mounted on the cupboard doors, finally occupying an horizontal position. The bedstead rests also on frontal fillets 10 on the inside of the cupboard door and under a pivoted locking catch 13. The abutments 9 and frontal fillets 10 have telescopic feet 11, so that, when the bedstead rests upon them, springs 12 are compressed and the feet rest on the floor.
Patent GB-685576-A (GB)
Title: Improvements in hammer mills
Inventor: BAMFORD CYRIL JOSEPH
IPC: B02C13/288
Filed: 1950-07-27
Abstract: 685,576. Hammer mills. BAMFORDS, Ltd, July 25, 1951 [July 27, 1950], No. 18752/50. Class 59 In a hammer mill in which the material is fed through an opening in the mill casing 10 tangentially of a rotatable hammer element 27 and the ground material passes through a sieve 29 of substantially semicylindrical form disposed below . and around the lower side of the hammer element, the sieve having its two ends secured to the casing so that all the material is forced to pass through the sieve to an outlet from the casing to which suction is applied by a fan 30, registering slots 18 adapted to communicate with the atmosphere are provided in horizontal flanges 15, 16 in the mill casing adjacent one or both ends of the sieve, the arrangement being such that the suction of the fan draws air through the slots thereby removing any accumulation of ground material from between the sieve and the casing. The horizontal flanges form part of two angle-section bars 14, 17 secured to the lower and upper parts 10, 13 of the casing, and mounted at each end of the upper or lower part of the casing is a manually-operable shutter 19 provided with spaced slots 20 whereby the slots 18 may be closed, partially closed, or left open. Alternatively, the shutters may be dispensed with.
Patent GB-688853-A (GB)
Title: Improvements in or relating to market stalls and like portable structures
Inventor: MARKWELL REGINALD THOMAS
IPC: E04H1/12
Filed: 1950-07-27
Abstract: 688,853. Folding tables. MELLOWES & CO., Ltd. Sept. 19, 1951 [July 27, 1950] No. 18755/50. Class 52(iii) [Also in Group X] A table 1 having a canopy 6, e.g. a portable market stall, has two pairs of uprights 2, each pair being hinged together at one end, at 3, and attachable at a distance from their free ends to the table 1, at 4, a ridge member 5 extending between the hinged ends of the uprights 2, transverse spars 8 attachable to the uprights 2, and eaves members 7 extending between the spars 8 parallel to the ridge 5. Cross braces 10 extend between the ridge 5 and spars 8 in the centre plane of the stall. The various members which may be of angle and T- section aluminium, are detachably interconnected. The table top 1, which may be of wood, is in three lengths hinged together, the two outer lengths having hinged to their undersides trestles 29 for additional support when the structure is erected. For transport the structure is disconnected, and the various spars strapped at 35 inside the folded top 1 which forms a triangular section box.
Patent GB-1188986-A (GB)
Title: Semiconductor Translating Apparatus.
Inventor: HUTSON ANDREW RHODES
IPC: H01L47/02
Filed: 1967-04-25
Abstract: 1,188,986. Gunn effect oscillators; modulators. WESTERN ELECTRIC CO. Inc. 25 April, 1967 [27 April, 1966], No. 18893/67. Headings H3R and H3T. [Also in Divisions G1 and H1] A Gunn diode 11 is energized by a bias voltage source 24 and also exposed to visible or infrared radiation from a light source 17, it being arranged that the combined effect of the voltage and the radiation gives the charge carriers in the diode body sufficient energy to initiate a Gunn-effect oscillation. The device housing 12 may be a microwave resonant cavity and the oscillations detected by a suitable detector 23 coupled to it. The diode 11 is a GaAs body of specified resistivity and dimensions mounted between copper housing parts 14 and 15. The ends 11A and 11B of the body are covered with an anti-reflecting coating of a substance appropriate to the wavelength of the incident radiation, and examples of suitable materials are given. The light may be amplitude modulated, in which case the Gunn oscillations are similarly modulated and the device converts light signals to microwave signals. Alternatively (Fig. 2, not shown), the light intensity and the bias voltage may be varied in conjunction to maintain a given amplitude of oscillation, the frequency of which depends on the bias voltage: such a system constitutes a tunable Gunn oscillator. Another tunable oscillator (Fig. 3, not shown) uses a narrow beam of intense light to nucleate a negative conductance region in a localized region of the diode body. This region propagates to the diode anode and gives rise to an oscillation whose frequency is determined by the spacing between said localized region and the anode. By varying the point of incidence of the beam on the diode body, the frequency is controllable. In particular, if the beam's position is discretely variable the system performs as a pulse-to-tone converter.