baber/WOPTO huggingface dataset:
Patent GB-1092307-A (GB)
Title: Gratings for stables
IPC: E04C2/42
Filed: 1965-03-01
Abstract: 1,092,307. Gratings. R. BAUER. March 1, 1965 [March 2, 1964], No. 8733/65. Heading E1G. A grating over a gutter 1, in a stable or the like, has longitudinal bars 4, 5 the cross section of which decreases in a downward direction. The bars which may be of hollow triangular or T-section are secured at one-third to one-half of their height to supporting members 3, such that they may be cleaned with a slotted rake. The bars are arranged such that a board 11 may rest on the members 3 to provide for longer animal boxes.
Patent GB-1361166-A (GB)
Title: Electrostatic gas filter
IPC: B67D1/06
Filed: 1973-02-22
Abstract: 1361166 Electrostatic separators L SCHWAB 22 Feb 1973 [21 March 1972] 8767/73 Heading B2J An electrostatic filter is provided with an electrode arrangement 16, 18, 20 for agglomerating sub-micron size particles in a gas flow 14. the electrodes being arranged in parallel and spaced relationship as shown. Electrodes 16 and 20 are connected to a voltage source 22 providing a first varying voltage, e.g. of sawtooth waveform with an A.C. ripple, and electrode 18 is connected to a voltage source 24 providing a second and different varying voltage, e.g. of sinusoidal waveform. Each electrode comprises a conductive frame 26 across which extend a plurality of parallelspaced conductors 28 in the form of braided wire or springs (Figs. 3 to 6, not shown) which produce complex electrostatic fields to enhance agglomeration.
Patent GB-385578-A (GB)
Title: Improvements in or relating to lamp shades, reflectors and the like
IPC: F21V7/04
Filed: 1931-03-23
Abstract: 385,578. Overhead lamps ; reflectors. BERLINER SPAR-ELEKTRIZITATSGES., 52, Babelsbergerstrasse, Wilmersdorf, Berlin. March 23, 1931, No. 8824. Convention date, March 22, 1930. Void [Published under Sect. 91 of the Acts]. [Classes 75 (ii) and 75 (iv).] In an overhead lamp adapted to provide a substantially uniform non-dazzling illumination of a street, hall, or other large area, or for decorative purposes, a source of light 1, Figs. 1 and 4, is adjustably mounted within, and concealed by, a primary reflector 3 which directs the rays on to a secondary reflector 4 having a central part 5 with its apex directed towards the primary reflector. The reflectors may be constructed wholly or partly of specular glass or metal, or they may be wholly or partly coated with enamel or otherwise made diffusing. The reflector 3 may comprise a central spherical or paraboloidal part, a truncated conical part, and a convex front edge, whilst the reflector 4 may have a convex edge 6. The top of reflector 4 may be fitted with an auxiliary source of light and reflector 8 or with a cover 15. The reflector 4 may be serrated or facetted, or coloured and otherwise ornamented to resemble a flower, mushroom or the like, and it may be protected by a conical glass 16. The reflector 3 mav have a coloured reflecting surface, it may be formed as a flower cup, and it may be externally illuminated by means of additional sources of light 18 arranged within a reflector 17. In the modification shown in Fig. 3 a number of light sources 1 are arranged within a trough-shaped reflector 11 adapted to cooperate with a trough-shaped reflector 12 having a wedge-shaped central portion 13.
Patent GB-1481944-A (GB)
Title: Flat envelope type fluorescent character-indicating tube
IPC: H01J31/15
Filed: 1976-03-05
Abstract: 1481944 Cathode-ray display tubes TOKYO SHIBAURA ELECTRIC CO Ltd 5 March 1976 [6 March 1975] 08878/76 Heading H1D In a flat envelope character-indicating tube having a plurality of phosphor-coated multisegment character indicating elements arranged lengthwise of the tube, and one or more similarly arranged thermionically emissive filaments extending above the elements, a getter support structure is arranged at one end of the tube and includes a shield plate for minimizing migration of getter material towards the elements, the filaments being secured to the getter support structure at the end of the latter which is nearest the end of the tube. As shown, two thermionic filaments 20 are separated from the character-indicating element by control grids 14, and are secured to member 40 of the getter support, the shield 36 being interposed between the getter ring 32 and the remainder of the tube. The getter support may also include a resilient member making electrical contact with a transparent conductive coating on the cover 10 of the tube.
Patent GB-552706-A (GB)
Title: Insecticide
IPC: A01N35/00
Filed: 1941-07-14
Abstract: 552,706. Ketones. SHELL DEVELOPMENT CO. July 14, 1941, No. 8903. Convention date, Sept. 12, 1940. [Class 2 (iii)] [Also in Group VI] Unsaturated aliphatic ketones or cyclicketones containing at least 12 carbon atoms in the molecule, which are used in insecticidal preparations are obtained by condensing unsubstituted ketones of low molecular weight with each other. Ketones such as diethylketone, propyl-isopropylketone, methylvinylketone and cyclic ketones such as cyclohexanone may be condensed by treatment in liquid or vapour phase with a catalyst such as sulphuric and phosphoric acids, potassium or sodium hydroxide, aluminium chloride, boron fluoride, acetic anhydride, zinc alkyls, sodium pyrosulphate, activated alumina, sodium silicate, borax or Portland cement. The reaction may be carried out at super-atmospheric pressure and at 50‹ to 150‹ C. The product consists mainly of a mixture of ketones and ketols which can be dehydrated to ketones by heating with sodium acid tartrate or iodine. Some of the ketones produced are cyclic, e.g. that obtained by condensation of mesityl oxide.
Patent GB-250390-A (GB)
Title: Improvements relating to spring loaded safety valves
IPC: E21D15/44
Filed: 1925-04-03
Abstract: 250,390. Hopkinson, R. A., and Hopkinson & Co., Ltd. April 3, 1925. Safety-valves.-A spring loaded safety valve has the spindle c guided at its upper end by a series of balls a arranged in a cage b housed in the upper spring abutment g. The balls are arranged in staggered rows.
Patent GB-662793-A (GB)
Title: Production and use of polymeric acetals
IPC: C08F8/30
Filed: 1949-04-01
Abstract: Polyvinyl acetals are prepared by reacting in ethylene glycol a water-soluble or hydrophilic polymer containing a plurality of recurring <FORM:0662793/IV (a)/1> groups with an ethylene glycol acetal of m-(3-methylsalicylamido) benzaldehyde in the presence of an acid catalyst.  The polymers may be prepared by partial or complete hydrolysis of polymers of vinyl acetate, propionate or benzoate, which may contain up to 10 per cent of a copolymerized monomer. Minor proportions of other groups, e.g. acetal, ester or ether groups, may be further introduced.  The reaction is effected at 60 DEG  to 80 DEG  C. and the polymeric acetal is precipitated by addition of a non-solvent, e.g. acetone or methanol, and filtered. Suitable catalysts are phosphoric, sulphuric, hydrochloric, chloroacetic, formic, methane sulphonic and p-toluene sulphonic acids.  The polyvinyl acetal, which is used mainly as a photographic colour-former (see Group XX), is preferably treated in slurry form with an alkaline compound to neutralize the catalyst.  From 0.75 to 7.5 per cent of the hydroxyl groups may be acetalized, resulting in amorphous solids soluble in aqueous ethanol.  Some of the hydroxyl groups, e.g. 0.1 to 5 per cent, may be acetalized with aldehydo-acids, e.g. o-sulphobenzaldehyde, phthaldehydic acid, glyoxylic acid and propionaldehyde b -sulphonic acid, preferably in the form of their alkali metal salts.  The acetals may be converted to dyes by coupling with diazonium salts or with p-aminodiethylaniline followed by potassium ferricyanide, in the latter case resulting in a strong blue - green solution. Specifications 551,120, 652,928 and 661,477 are referred to.ALSO:Polyvinyl acetals of m-(3-methylsalicylamido) benzaldehyde with water-soluble or hydrophilic polymers containing a plurality of recurring <FORM:0662793/IV (c)/1> groups may be converted to dyes by coupling with diazonium salts or with alkaline p-aminodiethylaniline followed by an aqueous solution of potassium ferricyanide, resulting, in the latter case, in a strong blue-green solution.  The acetals are used in photographic colour formers and may be developed in an aqueous solution of p-aminodiethylaniline hydrochloride, sodium sulphite, sodium carbonate and potassium bromide producing also a strong blue - green image.  Specifications 551,120, 652,928 and 661,477, [all in Group IV (a)], are referred to.
Patent GB-1500115-A (GB)
Title: Field effect transistor amplifiers
IPC: H03F3/30
Filed: 1975-03-05
Abstract: 1500115 Transistor amplifier SONY CORP 5 March 1975 [16 March 1974] 9155/75 Heading H3T A class B push-pull amplifier, using two triodelike FET's Q 3 , Q 4  with a D.C. supply voltage E CC1 , E CC2  to each through a common lead Z L , is driven by a differential input stage Q 1 , Q 2  supplying both signals and a bias derived from the drop across a resistor to each FET, the total current through the input stage being set automatically or otherwise to maintain the idling currents of the FET's constant in spite of variation in the total operating voltage. Without the automatic control of current, Fig. 4 shows the currents from input transistors (either FET as shown or bipolar) Q 1  and Q 2  stabilized in total by source (or emitter) load R 5 , running via bias resistors RG 1  and RG 2  to the drains of FET's Q 3  and Q 4  (Fig. 4] or to their sources (Fig. 3, not shown). When taken to the drains, to avoid loss of A.C. gain these resistors may be split and decoupled by capacitors C 1 , C 2  as in Fig. 5. E B  is a reference voltage which in Fig. 8 forms a base for the potential divider H supplying a control signal to transistor Q 5 , causing the current through Q 1 , Q 2  to compensate for any changes in E CC1 , E CC2 , the current also being variable via R 3 . While in Fig. 8 the bias resistors are source connected, in Fig. 9 (not shown) they are drain connected and in Fig. 10 (not shown) drain connected, split and decoupled, both with automatic control via potential divider H. A preferred construction of a triode-like FET is illustrated in Fig. 1 (not shown).
Patent GB-1190881-A (GB)
Title: Closures for Containers; the Manufacture thereof; and Containers Comprising such Closures
Inventor: BENJAMIN COLIN
IPC: B29C65/56
Filed: 1968-02-26
Abstract: 1,190,881. Bottle caps &c. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 24 Dec., 1968 [26 Feb., 1968], No. 9162/68. Heading B8T. [Also in Division B5] A thermoplastic polymer closure 7 a  is provided around the open end of an upstanding portion of a container 8, e.g. a beer bottle, a glass jar, or a metal can, by locating the thermoplastic as a solid mass, e.g. a stamped blank, on or above the aperture and effecting relative movement between the container 8 and a confined body of resilient deformable material 4, e.g. rubber having a plane or concave surface. The resiliently deformable material 4 may comprise a unitary mass or a plurality of layers of rubber. The solid mass of thermoplastic polymer may be heated, and may comprise polypropylene, high and low density polyethylene, ethylene/propylene copolymers, blends of polyolefins, polystyrenes including high impact polystyrenes and acrylonitrile/butadiene/styrene copolymer, and other polymers as described in Specification 1,175,915. The polymers may include colourants,stabilizers, antioxidants, antistatic additives, or fibres, and may be cellular. The neck of the container may be threaded. Examples are given using preheated discs of polypropylene and polystyrene. The closures may be of the single application, or resealable types.
Patent GB-912369-A (GB)
Title: Device for periodically severing strip material
IPC: B23D31/04
Filed: 1959-03-17
Abstract: 912,369. Attachments for shearing. GERMANN, V. March 17, 1959 [March 18, 1958], No. 9183/59. Class 83 (4). Apparatus for severing strip-material 16 fed stepwise by a punching &c. machine 26 comprises an oscillatory cutter 11 and a coacting stationary cutter 12. The apparatus is fixed to the table &c. 4 of the punching-machine by screws 23. Adjustment of the apparatus is by packing 22 and/or a screw or pin 19 engaging one of the holes 18 in the apparatus. Oscillation of the cutter 11 is by a rigid toggle or (as shown) telescopic connecting-rod 27, 28 which is connected at one end to the punch-holder 25, as by a pivot 29 or spring means pressing the rod against an abutment on the holder 25, and at the other to the blade-holder 7 so as to permit adjustment of--the angle α. The strip is fed through a guide 12 and the cut-pieces discharged through a shoot 24.
Patent GB-263367-A (GB)
Title: Improvements in pipe connections and pressure tapping devices
IPC: F16L41/06
Filed: 1926-04-09
Abstract: 263,367. Cleaves, L. B. April 9, 1926. Branches and mains, connecting.- Apparatus for connecting a branch pipe to a main 1 under pressure comprises a split sleeve 2 provided with an integral branch 3 adapted at its outer end to receive a drill housing 18 and subsequently the subsidiary pipe, and a plug valve 14, operated by screw means, which mav be withdrawn into a housing 4 or projected to close the branch, the free end of the plug in the projected position entering a recess 12 in the opposite side of the branch which also forms a pocket to receive drill cuttings. The sleeve 2 is provided with annular recesses 9 for the reception of packing, while the drill housing is formed with a series of stepped and internally screwed shoulders 21, 22, 23 to fit branches of different diameter.
Patent GB-590431-A (GB)
Title: Loose leaf binders
IPC: B42F13/00
Filed: 1945-04-16
Abstract: 590,431. Loose-leaf binders. THOMAS, B. C. April 16, 1945, No. 9440. Convention date, June 19, 1943. [Class 146 (i)] In a loose-leaf binder comprising aligned binding members 2 interlocking with slotted edges 4 of the leaves to be bound, each member 2 is of hollow cylindrical form and is internally partitioned at 1 to present two cup-shaped bases 3. The members 2 may be made of aluminium or other metal, synthetic resinous material, rubber or other material, and the inner and outer profiles of the cylinder may be varied. The lugs 8 forming the slots of the sheets may be stiffened by size, gum or other means. The partition 1 may be formed integral with the cylinder. The Specification as open to inspection under Sect. 91 comprises also members 2 having slots 12, Fig. 12 (Cancelled), through which a strip 13 passes to make the binder rigid; alternatively a rod may pass through holes in partitions 1. In Fig. 15 (Cancelled), two thin cups 3a, 3b are secured inside the cylinder 2 with their bases 1a, 1b either adjacent or spaced apart. In another form the hollow cylinder has a shorter solid cylinder secured within it so as to form a cup at each end. This subject-matter does not appear in the Specification as accepted.
Patent GB-116179-A (GB)
Title: Improvements in Electric Lanterns for Hand Signalling.
Inventor: WHITE SIDNEY DAVID
IPC: F21V19/02
Filed: 1917-07-03
Abstract: 116,179. White, S. D., and Burge, H. July 3, 1917. Lamp signals. - A portable signal lantern, particularly for use in railway shunting, is provided with several differently - coloured lamps B mounted on a movable plate D and connected to switch contacts arranged so that only the particular lamp which is in position for projecting light is in circuit. As shown, the plate D and a conducting slab P, are attached to a lever J<1> provided with an external handle J. The lamp sockets are all connected through the lever, a strip, and a contact spring to one battery terminal. A spring M engaging the other battery terminal is attached to a strip L<1> bearing a stud L in the path of three studs Q, connected to spring O<1> carried by the lever and abutting against the centre contacts of the three lamps. A projection U on the lever J co-operates with studs V on the case to retain the lever in the three positions with the lamps out of circuit. Instead of this arrangement the lever may carry a spring-urged ball or plunger taking into holes in a plate. Alternatively, the lever may actuate the lamp carrier by a pin and slot, or may be replaced by a push-piece.
Patent GB-547309-A (GB)
Title: Improvements in adjustable screw-threading tap holders
IPC: B23G1/46
Filed: 1941-07-29
Abstract: 547,309. Chucks. HOPKINS, E. C. July 29, 1941, No. 9602. [Class 83 (iii)] Chucks for holding and driving taps have two jaws of step form 5, 6 mounted in a slot formed by projections 4 on the body 1 and closed by a ring having cam surfaces 10. The ring is urged in the closing direction by a spring 12 mounted in a groove in the cam ring and confined between a pin 13 mounted in the groove and a jaw 14 carried by a cover plate, (not shown), that closes the groove and is attached to the body by screws 16. The edges of the jaws may be bevelled to facilitate opening by the tap.
Patent GB-1030012-A (GB)
Title: Improvements in or relating to the packing of sheet material
IPC: B65G49/06
Filed: 1963-03-11
Abstract: <PICT:1030012/C1/1> A sheet of glass fed over rollers 2 (Fig. 3a, not shown) is broken along pre-formed transverse incisions by pivoting upwardly a roller table 4 (Figs. 3a and 5) normally forming an extension of the rollers 2.  The roller table 4 is then traversed by means of its overhead carriage 11 to a position where it is tilted downwardly to the position of Fig. 5 to deliver the broken-off sheet to a stack of sheets interleaved with paper (see Division B8).  The feed of the sheet towards the roller table 4 is interrupted when the leading end of the sheet engages a member 6 (Fig. 3a, not shown) to operate a microswitch 9 mounted for adjustment in the length of the sheet.
Patent GB-595063-A (GB)
Title: Radio distance indicator
IPC: G01S13/34
Filed: 1944-05-18
Abstract: 595,063. Radiolocation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 18, 1944, No. 9624. Convention date, March 29, 1943. [Class 40 (v)] [Also in Group XXXVI] In a frequency - modulated radiolocation system, the distances of a number of reflecting objects at different ranges are simultaneously shown on an indicator comprising a number of resonant units tuned to particular frequencies within the beat frequency range. The beatfrequency output of the receiver is applied to the indicator which may be of the tuned-reed type with a large number of reeds, e.g. 100, which are viewed directly, Fig. 2 (not shown), or are arranged to uncover light sources which are projected on to a ground glass screen, Figs. 3 and 4 (not shown). Alternatively, it may comprise a number of parallel-connected series-tuned circuits, the coils of which form the windings of electromagnets which operate vibrating reeds when the circuits are energized, Fig. 5 (not shown). As shown in the Figure, the indicator system comprises the parallel. connected series-tuned circuits 41-49. The output from the rotating pick-up coil 52 is applied to the Y plates of the cathode-ray tube 61, the sweep voltage for the X plates being derived from the potentiometer 71, the arm 72 of which is rotated in synchronism with the pick-up coil by means of the motor 73. In all the embodiments described, the tuned units may be made responsive to a constant band width of frequencies by making the Q of each unit proportional to its resonant frequency. Specifications 317,068, [Class 40 (v)], and 594,766 and U.S.A. Specification 2,045,071 are referred to.
Patent GB-211742-A (GB)
Title: Manufacture of mono-azo-dyestuffs
IPC: C09B29/06
Filed: 1923-04-09
Abstract: Monoazo dyes of similar properties to those described in the parent Specification are prepared by coupling a diazotized o-aminodiphenylsulphone monosulphonic acid, which may also contain other substituents such as halogen, methyl, or NH.COR groups, with an unsulphonated aromatic amine containing at least ten carbon atoms forming part of aromatic nuclei; such amines are naphthylamines, N-aryl-, N-aralkyl, or N-alkyl-naphthylamines, and N-aryl-or N-aralkyl-anilines: the products dye wool from an acid bath in orange to blood-red shades fast to light and washing. According to examples dyestuffs are prepared from the following pairs of components:-2-diazo-4-acetylamino-41-methyl-51-sul pho-1 : 11-diphenylsulphone, or 2-diazo-51-acetylamino-4-sulpho-41-methyl-1 : 11-diphenylsulphone, or the diazo derivative of the sulphonic acid of 2-amino-5-acetylamino-41-methyl-1 : 11-diphenylsulphone, and ethyl-b -naphthylamine; 2-diazo-4-sulpho-41-methyl-1 : 11-diphenylsulphone and b -naphthylamine, phenyl-b -naphthylamine, or ethyl-a - or ethyl-b -naphthylamine; nitrated-2-diazo - 4 - sulpho - 41 - methyl - 1 : 11 - diphenylsulphone and ethyl-b -naphthylamine; 2-diazo-4-acetylamino-41-methyl-51-sulpho-1 : 11-diphenylsulphone and ethylbenzylaniline or diphenylamine; 2-diazo-4-sulpho-41-methyl-1 : 11-diphenysulphone and N-methyldiphenylamine or methyl- or ethylbenzylaniline: 2-diazo-4-sulpho-1 : 11-diphenylsulphone and its 41-chloro derivative are also specified as diazo components. o-Amino- and o-diazo-diphenylsulphone monosulphonic acids: - 2-diazo-4-acetylamino-41-methyl-51-sulpho-1 : 11-diphenylsulphone is obtained by condensing p-toluene sulphinic acid with 2 : 4-dinitrochlorbenzene, sulphonating, reducing, acetylating, and diazotizing; 2-diazo-5-acetylamino-4-sulpho-41-methyl-1 : 11-diphenylsulphone is obtained by condensing p-toluene sulphinic acid with 1-chlor-2-nitrobenzene-4-sulphonic acid, nitrating, reducing, acetylating, and diazotizing; 2-amino-5-acetylamino - 41 - methyl-1 : 11-diphenylsulphone sulphonic acid is made by sulphonating and acetylating the parent diamine; 2-diazo-4-sulpho-41-methyl-1 : 11-diphenylsulphone is prepared by condensing p-toluenesulphinic acid with 1-chlor-2-nitrobenzene-4-sulphonic acid, reducing and diazotizing; 2-diazo-4-sulpho-1 : 11-diphenylsulphone and its 41-chloro-derivative are similarly prepared starting from benzene-or p-chlorobenzene-sulphinic acid; nitro-2-diazo-4-sulpho - 41 - methyl - 1 : 11 - diphenylsulphone is obtained by nitrating the parent diazo compound.
Patent GB-241803-A (GB)
Title: Method of preparing cotton batting for shipment and use
IPC: B65B63/04
Filed: 1925-04-14
Abstract: 241,803. Stack, M. J. April 14, 1925. Upholstery struffing-materials.-A continuous length of cotton batting 2 for use in automobile and like upholstering is packed and prepared for use by winding into cylindrical rolls 6, Fig. 2, without stretching, baling a number of the rolls superposed as shown in Fig. 7 and enclosing in burlap &c. The cross-section is thereby changed from the form shown in Fig. 9 to that in Fig. 10. When required for use, a roll is mounted upon a suitable unwinding device.
Patent GB-269209-A (GB)
Title: Process of transforming pulverulent substances into uniform small pieces for reaction with gases
IPC: B01J2/00
Filed: 1927-04-11
Abstract: 269,209. I. G. Farbenindustrie Akt.- Ges. April 10, 1926, [Convention date]. Processes.-Pulverulent substances are transformed into uniform small pieces suitable for reaction with gases by causing drops of water or a salt solution to fall individually upon the surface of a uniform layer of powder, separating the spherical pieces thus produced from excess powder by sifting and drying. A layer of powder 1-2 cm. thick is spread upon a conveyer band and carried beneath a series of tubes from which liquid is dropped.