baber/WOPTO huggingface dataset:
Patent GB-561170-A (GB)
Title: Improvements in production of chlorine dioxide
IPC: C01B11/02
Filed: 1942-10-28
Abstract: 561,170. Chlorine dioxide. MATHIESON ALKALI WORKS. Oct. 28, 1942, No. 15140. 'Convention date, Sept. 26, 1941.. [Class 1 (ii)] Chlorine dioxide is obtained by reacting a metal chlorate with sulphuric acid in the presence of a .persulphate at a temperature not substantially above 50‹ C. Air is passed through the reactants to carry off the chlorine dioxide. Examples describe the production from calcium chlorate, manganese chlorate, sodium chlorate, and the use in the process of persulphuric acid and sulphuric acid resulting from the electrolysis of sulphuric acid.
Patent GB-1176084-A (GB)
Title: Manufacture of Mattress Covers.
IPC: A47C27/00
Filed: 1967-04-03
Abstract: 1,176,084. Mattress covers. ETABS. BERTRAND FAURE. 3 April, 1967 [13 April, 1966], No. 15216/67. Heading A4M. [Also in Division B8] A mattress cover comprises separate upper and lower, rectangular panels 1, 3 formed respectively with folded over ends 2 1  and sides 2 2 , the panels 1, 3 together forming a box shaped cover by stitching or otherwise securing together adjacent peripheral edges 7, 8 and corner edges 9. The cover is initially left unstitched along one peripheral edge 7, 8 and two adjacent corner edges 9 to allow filling of the cover.
Patent GB-474842-A (GB)
Title: Process of obtaining a new thio-barbituric acid compound
Filed: 1936-05-29
Abstract: Allylisopropyl-thiobarbituric acid is prepared by condensing an allylisopropylmalonic ester with thiourea.  An example is given. The product, which possesses therapeutic properties, may be converted into its sodium, calcium and other salts.
Patent GB-1349836-A (GB)
Title: Apparatus for helically coiling filaments
IPC: B29C48/05
Filed: 1970-12-16
Abstract: 1349836 Coiling STEELASTIC CO 16 Dec 1970 [6 Jan 1970] 15227/73 Divided out of 1348254 Heading B3E [Also in Divisions B5 and D1 The description is substantially identical with Specifications 1,348,254 and 1,349,837, but the claims are directed to an apparatus for helically coiling filaments comprising first and second spaced orifice means through which said filaments are drawn, each orifice means having an axis, said axes being laterally separated from and parallel with one another, means selectively to vary the spacing of at least one of said orifice means with respect to the other along its own axis and means to rotate one of said orifice means about an axis eccentric of its own axis.
Patent GB-543322-A (GB)
Title: Apparatus for observing the movement of traffic near a given point
IPC: G08G1/01
Filed: 1940-10-14
Abstract: 543,322. Train-actuated electric contact devices. CRONIN, B. A. Oct. 14, 1940; No. 15229. [Class 105] [Also in Group XXXVIII] An apparatus for observing the passage of vehicles past a given point comprises a spring M fixed at one end and provided at its free end with a contact piece that completes. the electric circuit IC of a visual indicator or relay when the spring is oscillated by vibrations produced by passing traffic. The spring is mounted in a casing C secured to a metal tube T which is fixed rigidly in the ground at the point of observation. The apparatus may be used for observing road or rail traffic.
Patent GB-737268-A (GB)
Title: Improvements in keyboards for musical and other instruments
Inventor: ASTELL LESLIE FRANK
IPC: G10C3/12
Filed: 1952-06-18
Abstract: 737,268. Musical instruments. HERRBURGER BROOKS, Ltd. June 1, 1953 [June 18, 1952], No. 15322/52. Class 88 (2). The individual keys of a musical instrument are mounted on parallel linkage supports. In a keyboard, posts 5 and 6 are respectively secured to a fixed rail 3 and to key supports 10 by means of screws and keyed joints. Each pair of posts is connected by a pair of parallel links 13, 14 and the key 2 is biased upwards by a spring 19. A contact 21 closes an electrical circuit when the key is depressed. The supports for both the black keys 1 and the white keys 2 are uniformly spaced throughout the keyboard.
Patent GB-135794-A (GB)
Title: Improvements in Lubricated Bearings for Axle Boxes of Rolling Stock of Railways, Tramways and the like.
Inventor: EVENO GEORGES
IPC: B61F15/22
Filed: 1919-06-18
Abstract: 135,794. Eveno, G. June 18, 1919. Oil, retaining. - To prevent the escape of oil from a railway-vehicle axle-box or a shaft bearing, a flanged ring 2 fixed to the rotating axle 1 intercepts and collects oil from the bearing 8 and de. livers it to a reservoir 4 when the vehicle stops. The ring has coned edges 5 and may have partition rings 7 as shown. In a modification, the ring 2 rotates in an opening in the dust-shield 9.
Patent GB-308118-A (GB)
Title: Improvements in or relating to portable electric lamps
IPC: F21L4/00
Filed: 1928-05-25
Abstract: 308,118. Downs, J., and Watts, Fincham & Co., Ltd. May 25, 1928. Battery lamps.-In a portable safety lamp for use in explosive atmospheres, the reflector 14 is insulatingly mounted and forms part of the electric circuit, and the switch 22, makes and breaks the circuit with the reflector and is operated by means which are insulated therefrom, the, insulation of said parts forming also a gastight joint. The operating means shown comprise a plunger or balls 26 separated from theswitch contact 22 by a resilient cup 27 and adapted to be depressed by a slidable thumb-piece 24 having a cam formed on its rear surface. In the lamp shown in Fig. 3, the ring 12 that retains the glass 13 is locked, and the head 83 of the lamp is locked on the battery casing 11, by a clamp 34 operated by a screw 35. In the lamp shown in Fig. 1, the light may be focused by turning the bulb-holder 17, which is threaded into the refl.ector, and the holder is retained in the adjusted position by a spring wire 19 engaging notches 21 in its flange.
Patent GB-743473-A (GB)
Title: Improvements in or relating to radio transmitting installations
Inventor: BARTLETT HUGH FREDERIC
IPC: H03H7/48
Filed: 1951-06-28
Abstract: 743,473. Aerial coupling arrangempnts. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 11, 1952 [June 28, 1951], No. 16420/51. Class 40 (7). Two or more transmitters are connected in parallel to a common load without mutual interaction by one or more isolation networks of bridged T-type. In Fig. 4a two transmitters T1, T2 are connected by a bridged T network to a common feeder F through switches SW1- SW4 such that either one or both transmitters may be used at the same time. If switches SW1, SW4, SW5 are put to their other positions the transmitter T1 feeds the feeder F directly, and transmitter T2 may be tested by opening switch SW4 so that L1, C1 being of equal but opposite sign, R1 forms a resistive test load.
Patent GB-1176178-A (GB)
Title: Lactonised Acrylic Polymers and production thereof
IPC: C08F8/16
Filed: 1967-04-04
Abstract: 1,176,178. Acrylonitrile copolymer filaments. JAPAN EXLAN CO. Ltd. 4 April, 1967 [4 April, 1966], No. 15490/67. Heading B5B. [Also in Division C3] Filaments spun from an aqueous sodium thiocyanate solution containing an acrylonitrilevinyl acetate copolymer which has been lactonized by treatment with aqueous sulphuric acid are washed, stretched in boiling water and relaxed in superheated steam to form 3 denier fibres in Examples 5 and 6. In the latter example, the fibres are dyed.
Patent GB-623741-A (GB)
Title: Improvements in systems for frequency modulation
IPC: H04B7/165
Filed: 1946-05-22
Abstract: 623,741. Diplex radio signalling; frequency modulation. SOC. FRANCAISE RADIOELECTRIQUE. May 22, 1946, No. 15504. Convention date, March 17, 1944. [Class 40 (v)] In a relay station of an F.M. transmission system an additional modulation band lying outside the modulation frequency band of the original modulation frequency modulates the local oscillator 4 of the frequency-changing stage 3 used in retransmission. An amplitude modulated wave is applied at E to a frequencychanger 9 to obtain a wave selected by the filter 8, transposed in frequency from that of the main modulation band, which is applied to a reactance valve 7 frequency modulating the local oscillator 4. If f1##f1 is the received band and f2##f2 the local oscillator frequency band, a doubly frequency modulated signal band (f1f2)(##f1##f2) results. Extraction from a receiver 2 of part of a received band may be made by a discriminator 11, filter 12, frequency-changer 13 which reinstates the signal into its original band and a filter 15. In Fig. 3 (not shown) for obtaining large frequency deviations a transmission frequency f may be obtained by beating two oscillators of frequency f1, f2 such that fm=f1 - f2 and frequency modulating in phase opposition the oscillators, the resultant relative frequency deviation #f1+#f2/f1-f2 being therefore large.
Patent GB-606965-A (GB)
Title: Improvements in or relating to the preparation of esters of alpha-formylphenaceturic acid and to compounds formed therefrom
IPC: C07C233/00
Filed: 1945-06-19
Abstract: Alkyl esters of a -formylphenaceturic acid are prepared by reacting an alkyl ester of phenaceturic acid with an alkyl formate in the presence of an alkali metal alkoxide at a temperature not in excess of 100 DEG  C.  The reaction may take place in the presence of an inert solvent such as ether or alcohol and suitable alkyl formates are methyl-, ethyl-, propyl- or butylformates.  In the examples, (1) ethyl formate and sodium ethoxide in ether are reacted with butylphenaceturic acid prepared by treating phenacetylchloride with glycine and potassium hydroxide and esterifying the phenaceturic acid formed with n-butanol; (2) ethyl a -formylphenaceturate is prepared from ethylphenaceturate and ethylformate and sodium- or potassium ethoxide in alcohol or ether.  The esters of a -formylphenaceturic acid may be (a) condensed with cysteine, or its salts or esters to give esters of a -[2-(4-carboxy) thiazolindyl] phenaceturic acid and (b) reduced with aluminium amalgam and subjected to acid hydrolysis to give aminohydroxypropionic acid (serine).
Patent GB-1044851-A (GB)
Title: Improvements in or relating to hydraulic systems for excavators
IPC: E02F9/22
Filed: 1965-04-12
Abstract: 1,044,851. Hydraulic power system for an excavator. SOC. ANON. AUXITRA. April 12, 1965 [April 14, 1964], No. 15580/65. Heading E1 F. An hydraulic system for an excavator, e.g. a drag shovel excavator, involves a prime mover driving two pumps, each pump supplying pressurizsd liquid to a valve block by which may be controlled the associated of two motors driving the crawler tracks of the excavator. The first of said pumps may also supply hydraulic power through a third valve block to a motor for slewing the excavator superstructure relative to the crawler-mounted base of the excavator, this power preferably being supplied to the third block through the first block in all settings thereof. The second pump may also supply hydraulic power through a further three valved block to piston cylinder units controlling movement of the boom, dipper stick and tool of the excavator, this power preferably being supplied to the three valves through the second block in all settings thereof. Means are also provided in the system for when hydraulic power is not being supplied from the third block to the superstructureslewing motor of supplying power then available from the first pump to the three valved block.
Patent GB-1270924-A (GB)
Title: Electronic circuit tester
IPC: G01R31/02
Filed: 1968-04-01
Abstract: 1,270,924. Continuity tester. ALBERSFIELDS ELECTRONIC ENG CO Ltd. June 30, 1969 [April 1, 1968], No.15642/68. Heading G1U. A continuity tester incorporates a two stage oscillator circuit having a first, oscillator, stage comprising a transistor 22 and a separate transistor amplifier second stage 32, there being a connection from the output of the amplifier stage to the base of the transistor of the first stage to provide regenerative feedback. The tester is connectible to a low voltage D.C. energizing source 9 and incorporates test probes 16 enabling a connection to be completed between the D.C. source and the oscillator circuit if the element being tested is conductive. An indicator e.g. a loudspeaker 20 responds to oscillation of the circuit.
Patent GB-370720-A (GB)
Title: Improvements in gas pressure regulators
IPC: G05D16/02
Filed: 1931-05-28
Abstract: 370,720. Pressure-regulating valves. POLLAK, J. E., 20, Holborn, London.- (Neumann, R. ; 122, Schillerstrasse, Charlottenburg, Berlin. ) May 28, 1931, No. 15678. [Class 135.] A diaphragm-actuated pressure-regulating valve has two or more nested nozzles arranged in the outlet and a communication made from one or more of them to the actuating chamber. In the form shown in the Figure a lift valve 11 is coupled by a spindle 13 to a pair of diaphragms 17,.20 loaded by a weight 16. The smaller diaphragm is subject to inlet pressure and the space between the diaphragms is connected by a passage 27 and pipe 29 to the inner one of three nested nozzles 24, 25, 26. The nozzles are preferably supported by a sheet iron spider. In a modification four nozzles are provided each connected to the actuating chamber through a passage provided with a throttling screw.
Patent GB-203067-A (GB)
Title: Improvements in galvanic cells with gas depolarisation
IPC: H01M12/06
Filed: 1922-06-06
Abstract: 203,067. Nyberg, H. D. June 6, 1922. Carbon electrodes, making; cells; air or gases supplied; electrodes; arrangement. - In a cell employing zinc and carbon electrodes the carbon electrode forms the container and is so prepared that its inner surface is wetted by the electrolyte which penetrates the carbon to a certain depth while the outer surface or adjoining layer is impermeable to the electrolyte but allows the passage of the depolarizing gas. The cell mav be made from a mixture of carbon and an oily substance such as tar, the shaped vessel being heated so as to burn away the oily substance from the surface and leave a greasy layer, not permeable to the electrolyte, at the central zone of the walls of the vessel. The oily substance may be burnt away completely and the vessel impregnated with a greasy substance such as paraffin, melted, dissolved or as vapour, which is then removed for a certain depth from the inner walls by means of a hot liquid, or the vessel may be impregnated on its outer side only leaving the interior free from grease. In a modified process, the vessel is made from two separate layers, only the inner layer being permeable to the electrolyte. The outer impermeable layer mav be made by adding a substance such as a silicate to the carbon used in making the layer. In order to assist depolarization a catalyst such as platinum, palladium, cerium or manganese compounds may be deposited at the surface where the permeable and impermeable layers adjoin. This may be done by introducing into the vessel a solution of the metal compound and forcing it under pressure into the walls of the vessel and precipitating the catalyst electrolytically. Fig. 1 shows a cell in which the carbon vessel 1 is provided with a cover 2 having hooks 3 engaging under lugs 4 on the vessel. The cell may be divided into compartments by a vertical partition of paste-board boiled in paraffin. Each compartment contains a zinc electrode 6 of grid shape as shown in Fig. 4. The ends 7 of the zinc electrode are of semi-circular section and project through an opening in the cover 2 to form a handle. A cork 9 may be inserted in the opening between the parts 7. The parts 7 may be joined by soldering, or a zinc electrode with a hollow projection equivalent to the two parts 7 may be made by casting. The bottom of the vessel 1 is impermeable to both gas and liquid and may be made of a material other than carbon. One or more cells may be contained within an outer box, sufficient space being left for circulation of the depolarizing gas.
Patent GB-861244-A (GB)
Title: Improvements in or relating to soldering fluxes
IPC: B23K35/36
Filed: 1959-05-07
Abstract: A flux for soft solders comprises a wax or resin-based carrier, e.g. colophony, and a hydrohalide of an N, N-disubstituted alkanolamine. The hydrohalide may be the hydrochloride, and suitable substituted alkanolamines are dimethyl-, diethyl-, dibutyl-, diphenyl-, and phenylethylethanolamine, dimethylisopropanol-amine, and dimethylbutanolamine.
Patent GB-513721-A (GB)
Title: Improvements in or relating to means for conditioning gas-containing beverages such as beer or the like
IPC: C12H1/16
Filed: 1938-05-26
Abstract: 513,721. Nozzles. BELL, H. May 26, 1938, No. 15806. [Class 69 (iii)] A nozzle for conditioning beer &c. is fitted with a conical filter member and a discharge tube from which the liquid flows transversely, or a perforated discharge cap. The bore of the nozzle is less than that of the pipe to which it is fitted to provide an abutment 11 and the filter 7 is clamped between the two parts 1, 2 of the nozzle. The liquid passes through a tube 9 having a discharge 10 and impinges on the wall 8 which may be conical as shown, or cylindrical. In a modification the filter is held in place by a perforated cap through which the liquid is discharged.
Patent GB-402785-A (GB)
Title: A gas cooker to be used on ring burner
IPC: F24C15/00
Filed: 1932-06-06
Abstract: 402,785. Gas cooking-stoves. HEASMAN, J., 15, Balham Park Road, London. June 6, 1932, No. 15931. [Class 126.] In a gas cooking-stove of the type comprising an outer casing A in which is mounted an oven chamber D in such a way as to leave a combustion chamber R at one end, and flues above, below, and at the other end of the oven, heat being obtained from a gas ring burner below an opening in the floor of the combustion chamber, outlet apertures P for the gases are formed in the lower part of the end wall of the casing remote from the combustion chamber. An efficient transfer of heat from the gases to the oven, particularly to the end wall remote from the combustion chamber, is thus obtained.
Patent GB-1222193-A (GB)
Title: Food-treating apparatus with helical pumping system
Inventor: FARKAS DANIEL FREDERICK
IPC: A23L3/18
Filed: 1969-03-26
Abstract: 1,222,193. Treating apparatus. D. F. FARKAS. 26 March, 1969 [16 May, 1968], No. 15939/69. Headings A2D and A2E. [Also in Division A4] An apparatus for treating food and other materials comprises a treating chamber 2, a coil of tubing 4 wound about horizontal axis 24, means 6, 7, 8 for rotating the coil about the axis, one end of the coil communicating with a feeding station and the other end with the treating chamber, and means 15, 16 for delivering a liquid and the material to be treated to the feeding station for conveyance by the coil into the treating chamber, which may be operated at super or sub atmospheric pressure. The heated material may be removed from the chamber by a second coil 25. Processes referred to include sterilization of cans or other packages, using a liquid water, glycol, glycerine, and silicone or hydrocarbon oils, blanching, cooking potatoes using oil or fats, impregnation of fruit slices with syrups or other liquids containing sweeteners, flavourings or preservatives, degassing foods prior to packaging, impregnating beans, cereals and other foods with preservatives or tenderising agents.
Patent GB-1337634-A (GB)
Title: Film reader
IPC: G03B21/11
Filed: 1971-05-20
Abstract: 1337634 Optical projection apparatus EASTMAN KODAK CO 20 May 1971 [21 May 1970 15961/71 Heading G2A A film reader for microfiche includes a projection lamp 20 with condensers 21 in a housing 18, and a housing 13 having objective lens 25, mirrors 26, 27, 28 and a screen 29. Microfiche are held along one of their edges by gripper 45 carried by the top plate 55 of V-shaped member 52. The member 52 pivots about an axis perpendicular to the portion of the optical axis O and so moves the microfiche along the surface 23 and in/out of recess 22. The gripper 45 is also mounted for movement along the length of the top plate 55. As shown in Fig.6 these movements may be controlled by controls located at the foot of plate 53 or 54. They include a disc 100 having a pulley (not shown) connection to wire 64 which moves the gripper 45 across the top plate 55 and another disc 103 carrying a gear ring 102 meshing with gear 101 which is attached to another gear engaging a gear segment 72 fitted to the housing. Hence rotation of disc 103 pivots the U-shaped member 52. Similar alternative control mechanisms are described, Fig.8-13 (not shown). As shown in Fig.2, the lamp housing 18 can be pivoted about joint 19, and a hood 14 having side plates 37 and sliding top cover 39 moved from a retracted position, in which the screen 29 is shielded, to an operating position, in which they prevent ambient light from interfering with the viewing of the projected image. A focusing control knob (50), Fig.1 (not shown) is provided on a side wall of the housing 13.
Patent GB-374258-A (GB)
Title: Improvements in or relating to tables
Filed: 1931-06-01
Abstract: 374,258. Tables. CROUCHER, F. W., Ravensbury Mills, Morden Road, Mitcham, Surrey. June 1, 1931, No. 15994. [Class 52 (iii).] A table comprises two separable top parts 4, folding legs 9, and battens 6 set in clips 7, 7<1> on the underside of the top and secured by thumbscrews &c. 8. Each part 4 may have legs such that it is a complete table.
Patent GB-901057-A (GB)
Title: Improvements in covering webs of thermo-plastic synthetic foams with firmly adherentwebs of other materials
IPC: D06N3/00
Filed: 1960-05-06
Abstract: 901,057. Laminates. AGRICOLA REG. TRUST. May 6, 1960 [May 6, 1959], No. 16084/60. Class 140. Webs of foam plastics, are covered on one or both surfaces with webs of other materials, e.g. polyvinyl chloride foil, textile or knitted fabric of wool, cotton, silk or rayon, which may be pile or gauze fabrics in a calender by first plastifying by heat the surface to be covered of the web of foam plastic and/or the applied layer if this consists of or contains a thermoplastic material, and then rolling them together under pressure between calender rolls maintained at a temperature below the plastifying temperature. The applied layer may be embossed or printed or both at the same time as it is united with the thermoplastic foam, by using suitably engraved rollers. An upholstery web may be covered in this way, the covering on one side being a textile fabric serving to secure the web to its support, the covering on the other side being decorative.
Patent GB-219146-A (GB)
Title: Improvements in gas burners suitable for use in cooking
IPC: F23D14/06
Filed: 1923-06-21
Abstract: 219,146. South Metropolitan Gas Co., and Chandler, D. June 21, 1923. Atmospheric gas burners. -A plug B having a number of grooves C, is fitted loosely in the cylindrical bore of a burner-head A, a flange D on the plug having a plurality of grooves E, communicating with, and preferably of the same cross-sectional area as, the grooves C, resting on the top of the burner-head. In a modification, the burner head A, instead of the plug, is provided with grooves such as C, and grooves such as E are provided in the top of the burner head or on the underside of the flange D.