baber/WOPTO huggingface dataset:
Patent GB-631167-A (GB)
Title: Improvements in and relating to electromagnetic switches
IPC: H01H50/24
Filed: 1945-05-01
Abstract: 631,167. Electromagnetic switches. BRITISH THOMSON-HOUSTON CO. Ltd. May 1, 1945, No. 11005. Convention date, May 2, 1944. [Class 38(v)] An electromagnetic switch comprises an electromagnet 12 having an armature 16 pivoted at two points at its lower end and to which is attached a spring 30 carrying a movable contact 31 which engages a fixed contact in an arc chute 11. Fig. 3 shows the method of pivoting the armature to a bracket 15 secured to an extension 14 of the magnet core. A rubber or other resilient member 17 is passed through an opening in the armature. The member 17 is provided with fl a n g e s 24 which grip the armature o n both sides, and with -a central hole e through which a bolt 19 is passed which secures the member 17 to the bracket 15. The member 17 normally biasses the armature away from the coil 12 but allows movement of the armature when the electromagnet is excited. Two brackets 15 are provided with two similar rubber pivots for the armature as shown at 17, 18 in Fig. 1. The armature is additionally biassed by a spring 26, Fig. 2, which bears against an arm 28 secured to the lower end of the armature which may be provided with a core piece 29 co-operating with the core 29a of the magnet. The spring 30 presses at its upper end against a bracket 32 secured to the armature and the pressure of the spring on the armature can be varied by inserting washers between the bracket 32 and the armature and also by means of an adjusting screw 35 extending through the spring at its lower end which is bent as shown at 31a to rest against the armature. A flexible conductor 61 connects the contact 31 with a terminal member 62. A fixed bolt with an adjustable nut 41 limits the movement of the armature away from the magnet. The upper end of the armature is provided with two projections 38, 39 which actuate two press-button interlock switches 40 situated one on each side of the chute 11. Fig. 5 shows one of the switches with the two casing parts 42, 43 separated. Each part carries a fixed contact 46, 47 in electrical connection with a fixing bolt 59, 60. Moving contacts are carried by a conducting bridging member 51 which is moved by the plunger 50. In the form shown in Fig. 5 the fixed and moving contacts are normally closed by springs 54, 55. By removing the member 51 and replacing it in the reversed position the switch is converted to one with normally open contacts.
Patent GB-527643-A (GB)
Title: Improvements in or relating to the production of hydroxy organic acids or derivatives thereof
IPC: C07C51/12
Filed: 1939-04-11
Abstract: 527,643. Hydroxycarboxylic acids and their derivatives. DU PONT DE NEMOURS & CO., E. I. April 11, 1939, No. 11023. Convention date, April 9, 1938. [Class 2 (iii)] Hydroxycarboxylic acids or derivatives thereof are obtained by subjecting a compound of the general formula where R, R<SP>1</SP> = H, alkyl, aryl, aralkyl, cyclic or alicyclic radicles or derivatives thereof, to the action of carbon monoxide in the presence of a liquid solvent consisting of water, or containing or giving rise to water, or of an organic acid or ester (in presence or absence of water) or of an anhydrous organic acid anhydride or anhydrous inorganic acid, preferably in the presence of an acid catalyst and at elevated temperature and pressure. If anhydrous organic acids and anhydrides are used, esters of the hydroxy acids are obtained, while anhydrous inorganic acids, e.g., hydrochloric or phosphoric acid, give inorganic substituted hydroxy acids. As compounds of the general formula, saturated or unsaturated aldehydes, e.g., acetaldehyde, propionic, butyric, isobutyric, palmitic and stearic aldehydes, acrolein, methacraldehyde and crotonaldehyde and mixed aldehyde acids, e.g., formylacetic acid are specified. Other substituted aldehydes, e.g., aldols may be used, and cyclic or heterocyclic aldehydes, e.g., benzaldehyde, toluic aldehydes, phenylacetaldehyde and furfuraldehyde. As ketones, acetone and diethyl and methylethyl ketones are mentioned. In examples, (1) lactic acid is obtained from acetaldehyde, (2) a mixture of hydroxy acids is obtained from a mixture of acetaldehyde and formaldehyde, (3) a product from acetaldehyde is distilled with n-butanol ; butyl lactate is obtained, and (4) α-hydroxyisobutyric acid was obtained from acetone.
Patent GB-288037-A (GB)
Title: Improvements in or relating to electric cooking apparatus
IPC: F24C7/08
Filed: 1927-04-25
Abstract: 288,037. Thompson, S. April 25, 1927. Electric stoves; resistance ovens. - The switches 8 and fuses 12 for controlling the heating units are contained by a casing adapted to be positioned above and to the rear of the apparatus. The casing is constituted by cast iron ends 1, a sheet metal back 3, and a removable front panel 4, which also forms a splash back. The panel may be formed of separate upper and lower portions. The casing is open at the top and bottom to allow hot air to pass therethrough and a plate rack 23 is provided at the top. The supply leads are connected to bars 7, 16, the former being fitted with a shield 17 fitted with springs clips 18 for carrying spare fuse caps 19. The switches and fuses are mounted on bars 9, 13 respectively.
Patent GB-418000-A (GB)
Title: Improvements in electric incandescent lamp holders and like fittings
IPC: H01R33/46
Filed: 1933-04-13
Abstract: 418,000. Electric - lamp holders. BROWN, J. M., The Hollies, North Park, Iver, Buckinghamshire. April 13, 1933, No. 11167. [Class 39 (ii).] An incandescent electriclamp holder or like fitting has spring plungers built as plug and socket connectors, the fixed part of each plunger being recessed at its rear end to receive a domed or conical protuberance pressed into it by the cap of the holder and clamping a conductor upon it. In the form shown, each spring plunger consists of a socket 6 which is split longitudinally so as to grip a plug 7 with resilient pressure. A spring 9, strong enough to overcome the frictional resistance of the socket, presses the plunger 6 outwardly. The rear end of the plug 7 has a conical or rounded recess, adapted to receive a protuberance 11 which grips the bored ends of a flexible conductor 13. The flexible cord is gripped between the cap 3 and the block 12. To reduce leakage the plungers are mounted in separate cylindrical bosses 14. An insulating mica or other washer may be inserted between the spring 9 and the shoulder of the plug 7 or the flange of the socket 6. Specification 397,935 is referred to.
Patent GB-436946-A (GB)
Title: Improvements in electrically driven vacuum cleaners
IPC: A47L9/22
Filed: 1934-04-13
Abstract: 436,946. Motor supports. ELECTROLUX, Ltd., Luton, Bedfordshire.-(Assignees of Inventia Patent-Verwertungs-Ges. ; 10, Herrenacker, Schaffhausen, Switzerland) April 13,1934, No. 11191. Convention date, April 15, 1933. [Class 35] The motor or motor unit of a vacuum cleaner is resiliently connected to one or more rigid insulating supports inserted loosely into the end of the cleaner casing and secured tightly solely by a clamping action of an end cover when mounted on the casing. In the form shown, insulators 18 are held in grooves in a metal ring 14 secured to the end of the cleaner casing and are clamped by the end cover 23 and the springs 16 which carry the motor unit are held by pins 17 carried by the supports 18. The segmental supports 18 may be replaced by a complete ring and may carry the motor unit by any type of spring.
Patent GB-1416123-A (GB)
Title: N-chlorothio urea intermediates
IPC: C07C381/00
Filed: 1974-03-13
Abstract: 1416123 N-chlorothio ureas CHEVRON RESEARCH CO 13 March 1974 11284/74 Heading C2C N-chlorothio ureas of general formula in which R and R<SP>1</SP>, same or different, are each H, C 1-6  alkyl, C 1-4  alkoxy, C 3-10  cycloalkyl, C 6-10  aryl optionally substituted by 1-4 substituents selected from F, Cl, Br, CF 3 , CCl 3 , NO 2  and C 1-4  alkoxy groups and R<SP>2</SP> is H, are prepared by reacting a compound of formula R<SP>1</SP>(R<SP>2</SP>)N-CO-NHR with SCl 2  in the presence of an acid acceptor. Radical R is preferably methyl or ethyl and R<SP>1</SP> is preferably phenyl or phenyl substituted by 1 or 2 F, Cl, CF 3 , NO 2 , CH 3 , C 2 H 5 , CH 3 O or C 2 H 5 O groups. In the examples N-chlorothio-N- methyl - N<SP>1</SP> - (2 - fluorophenyl)urea and N - chlorothio - N - methyl - N<SP>1</SP> - 3,4 - dichlorophenyl urea are prepared. N-Dithio-substituted ureas of general formula where R<SP>3</SP> is an optionally substituted hydrocarbon group are prepared by reacting the N-clilorothio ureas of Formula I with R 3 SH in the presence of an acid acceptor. Amongst numerous examples N-methyl-N-cyclohexyldithio-N<SP>1</SP>-o-fluorophenyl urea is prepared.
Patent GB-1255214-A (GB)
Title: Apparatus providing dry access to ships and other structures below the waterline
Inventor: HOMEWOOD LESLIE SPENCER GRAHAM
IPC: B63B9/00
Filed: 1969-03-04
Abstract: 1,255,214. Apparatus providing dry access to ships below the waterline. L. S. G. HOMEWOOD. 3 June, 1970 [4 March, 1969], No. 11326/69. Headings B7M and B7S. Apparatus for providing dry access to a ship's hull below the waterline 23 while afloat comprises an impervious wall forming a chamber having a top 15, back 12 and two sides 13, 14, the front of the chamber being formed by the portion of the hull 16 to which access is desired. The wall has a seal 22 around the edges in contact with the hull and wires 37, 38, 43 hold the seal against the hull. Compressed air enters the chamber through line 25 and valve 26 to displace water from the chamber and water 35 in tank 36 on top of the chamber opposes the upward buoyancy forces on the chamber. In the embodiment shown access to the chamber is through air-lock 17 and hatch 18. Work is done from raft 30 and the water level 24 can be adjusted by exhaust valves 31 to 34.
Patent GB-289027-A (GB)
Title: Improvements in lacing fastenings for cloth casings such as pillow cases and bed spread covers
IPC: A47G9/04
Filed: 1928-04-17
Abstract: 289,027. Frei, B. Bauer-. April 20, 1927, [Convention date]. Pillow slips and the like.-Pillow cases and like articles are closed by lacing fastenings, a continuous or two-part band 2, 2<1> with lacing holes 3 being secured to the edges of the opening, the holes along one side of the band having bridges 8, under which the lacing cord 4 is passed in the manner shown. The end of the cord may be tied to a short cord 7 or be otherwise secured. The Specification as open to inspection under Sect. 91 (3) (a) described also a modification in which the bridges 8 were omitted. This subjectmatter does not appear in the Specification as accepted.
Patent GB-876127-A (GB)
Title: Anodic treatment of zinc and zinc-base alloys
IPC: C25D11/38
Filed: 1960-03-31
Abstract: 876,127. Anodizing zinc and zinc alloys. CONSOLIDATED MINING & SMELTING CO. OF CANADA Ltd. March 31, 1960 [July 14, 1959], No. 11480/60. Class 41. Articles made of zinc or zinc alloy are given a hard protective coating by anodizing, using an electrolyte free from metal ions and containing phosphate, fluoride, and chromate ions, preferably in the form of ammonium salts, the pH of the electrolyte being 6 to 8. Direct or alternating current may be used, and is applied at a low voltage which rises to a steady terminal voltage of about 200 volts.
Patent GB-252863-A (GB)
Title: Improvements relating to valves
IPC: F16K39/04
Filed: 1925-05-05
Abstract: 252,863. Gray, T. F., and Victory Valves, Ltd. May 5, 1925. Valves fitted with independently - actuated supplementary valves. -In valves for controlling steam or other fluid under considerable pressure and having means for by-passing fluid to facilitate opening and closing the seatings e, f are formed on sleeves g, h provided with. ports i, j forming a communication between the remote sides of the valve discs a, b. The ports i, j are controlled by hand-actuated subsidiary valves k, m. The valve shown is of the type described in Specification 198,441.
Patent GB-506580-A (GB)
Title: Improvements relating to the means of measuring liquids in tanks of various shapes
IPC: G01F23/24
Filed: 1938-04-21
Abstract: 506,580. Electric signalling systems. HEDLEY, J., and SPONG, J. L. April 21, 1938, No. 11760/37. [Class 40 (i)] In liquid - level indicating - apparatus of the kind in which resistances r in a circuit containing a current meter m are connected to contacts in a tube 2 extending from top to bottom of the liquid container 1, the tube is provided with baffles 11 1 arranged in two opposite sets in staggered relationship, the members of one set forming the contacts connected to the resistances by leads, which are enclosed by a tube 10 of insulating-material mounted on the tube 2.
Patent GB-1409470-A (GB)
Title: Control valve suitable for controlling hydraulically actuated forward and reverse clutches
IPC: B63H23/30
Filed: 1973-05-09
Abstract: 1409470 Reverse gear control TWIN DISC Inc 9 May 1973 [10 May 1972] 11831/75 Divided out of 1409469 Heading F2D [Also in Division G3] The subject-matter is the same as that of the main Specification 1,409,469, but the claims are directed to the modulating control valve.
Patent GB-436596-A (GB)
Title: Improvements relating to bayonet joint locking devices for electric lamp holders
IPC: H01R33/46
Filed: 1934-04-19
Abstract: 436,596. Electric - lamp holders. ETCHELLS, J., 21, Park Road, Stretford, Manchester, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. April 19, 1934, No. 11853. [Class 39 (ii)] A locking-device to prevent the theft of an electric lamp from a bayonet-joint holder comprises a pin or peg 2 adapted to move in an axial bore in the body 1 of the holder, independently of the contact plunger or plungers, and to bear directly or indirectly against the cap 10 of the lamp, a locking- member 3 transverse to the axis of the holder being provided for controlling or limiting the axial movement of the pin 2. As shown the member 3 comprises a shaft provided with a mortise to receive the head 4 of the pin 2, the remaining part 6 of the section being approximately semicircular and forming a cam. Arbors 7<a>, 7b respectively support the member 3 in a bushing 9 and in a bearing in the body 1 of the holder, so that it can be rotated by means of a key inserted in the bushing 9, the pin 2 being in its locking-position and preventing axial movement of a lamp in the holder when the cam 6 abuts against the head 4 of the pin 2. The lamp may be removed when the member 3 is rotated to receive the head 4 in the mortise. The cam surface on the locking- member may be of any form, or the member may have a conical thread engaging the head of the pin. Alternatively the locking-member may be wedge-shaped and movable transversely over the head of the pin.
Patent GB-1147491-A (GB)
Title: Improved display card
IPC: G09F5/00
Filed: 1967-03-14
Abstract: 1,147,491. Article display boards. T. JERMYN [trading as JERMYN INDUSTRIES]. 14 March, 1968 [14 March, 1967], No. 11947/67. Heading A4T. [Also in Division G5] A backing sheet has secured to it a masking sheet having a plurality of apertures in it: the portions of the backing sheet so exposed are covered at least in part by a permanently tacky adhesive to fix small articles thereto. It may comprise the page of a catalogue!
Patent GB-569168-A (GB)
Title: Improvements in or relating to window pelmets
IPC: A47H1/124
Filed: 1943-07-23
Abstract: 569,168. Pelmets. MOSS, H. July 23, 1943, No. 11987. [Class 52 (v)] A curtain pelmet of metal, plastic or wood with attached rails 5 is adjustable for width by forming it of L-shaped sections 1, 2 slidable within a central section 3. The section 3 is also of inverted L-shape with grooves 4 which receive the edges of the outer L-sections. Clips 7 are also fixed on the underside of section 3 to slidably receive the free overlapping ends of curtain rails 5 suspended from the outer sliding pelmet sections. The slots 6 receive the cylindrical heads 8 of the curtain runners.
Patent GB-433076-A (GB)
Title: Improvements in wheel jacks for automobiles
IPC: B60S9/22
Filed: 1934-04-20
Abstract: 433,076. Jacking devices on vehicles. ELLIOTT, A. G., Darley Dene, Belper Road, Derby. April 20, 1934, No. 12002. [Class 79 (iii)] In motor vehicles with independent wheel mountings, the stub axle carrier for each wheel comprises a hollow forging accommodating a jack. In the form shown, the stub axle carrier a<3> supported by links b, b<1> and springs enclosed in the hollow frame member b<2> is formed as a casing and accommodates a screw jack c controlled by a shouldered nut d located between a casing shoulder d<2> with thrust bearing d<3> and a sleeve f threaded into the open end of the casing. The nut is rotatable through bevel gearing g, g<1> by means of an operating rod with squared end inserted into a square recess in the boss of the bevel gear g<1>. Alternatively, the jack might be of ratchet, hydraulic or other type.
Patent GB-1505713-A (GB)
Title: Chamber filter press
IPC: B01D25/12
Filed: 1975-03-21
Abstract: 1505713 Filter press EBERHARD HOESCH & SOHNE 21 March 1975 [30 March 1974] 12006/75 Heading B1D A filter press has a plurality of plates, which are alternately chamber filter plates 9 and membrane plates 13. A turbid liquid inlet duct 6 for suspension to be filtered is arranged in frame parts of all the plates and communicates with the filter chambers through inlet mouthpieces 19 in the chamber filter plates 9 via bores 18. Filter cloths 12 are secured to the chamber filter plates 9 by mouth pieces 19. Pressure fluid applied behind membranes 15 expels liquid from the filter chambers. Wash inlet ducts 16 (Fig. 2 not shown) and filtrate removal ducts 17 (Fig. 2 not shown) are also provided.
Patent GB-1221862-A (GB)
Title: Gold alloy electroplating bath
IPC: C25D3/48
Filed: 1968-03-12
Abstract: 1,221,862. Electro-plating bright gold alloy. SEL-REXCORP. March 12, 1968 [May 11, 1967], No.12032/68. Heading C7B. Bright gold-tin alloy e.g. containing 15 to 40% by weight tin having a rhodium-like appearance is electro-plated on a cathode using an insoluble anode from an aqueous solution containing an electrolyte, a soluble alkali metal gold thiomalate and tin as a stannous compound or stannous ions. Preferably the ratios of electrolyte: tin: gold are 20:1:1/6 to “. The electrolyte is typically a weak organic acid such as thiomalic acid, citric acid or gluconic acid and may be an alkali metal salt of such acid formed by adding alkali metal hydroxide and the pH of the plating solution may be 10 to 12. Tin may be present as stannous sulphate, gluconate or thiomalate or as sodium stannate alone or in admixture with these salts. The specified concentrations are per litre 0À4 to 0.75 gm gold, 48 to 65 gms thiomalic, and 2À4 to 3 gms tin, the operating temperature is from 20 to 90‹ C. and the current density is from 40 to 120 ASF.
Patent GB-1406392-A (GB)
Title: Container flaw inspection apparatus
IPC: G01N21/90
Filed: 1973-03-14
Abstract: 1406392 Photo-electric flaw detectors BARRY-WEHMILLER CO 14 March 1973 12186/73 Heading G1A In a transparent container flaw inspection apparatus each container is conveyed in a vertically upright position to an inspection station where it is illuminated by a plurality of laterally spaced light sources and the inside of the container is scanned by means of an image condensing lens system and a further optical system including a rotating prism by means of which bright spots produced by the illumination of flaws are focussed on to a photo-detector. The containers are transported by a conveyer to the inspection point where they are illuminated by three light beams each produced by a lamp having an integral parabolic reflector in front of which is positioned an adjustable rectangular aperture which is imaged by means of a lens at a plane positioned on the remote side of the container. The three beam systems are angularly spaced about the axis of the container to ensure that any flaw is illuminated irrespective of the orientation of the container. The flaws are detected by means of the scanning head shown in Fig.4 which is positioned vertically above the container C. A condensing lens system 25, 26 produces an image of the inside of the container in the plane Y and this image is scanned by means of a collimating lens 27 a dove prism 28 and a projection lens 29 across an array of three photocells 21 to 22. The prism 28 is mounted in a cylinder 30 which is rotated by means of a motor. A pair of carriers 36, 37 contain a plurality of collimating lenses 27 and projection lenses 29, a suitable pair being selectable by rotation of knob 35. In use flaws, such as spikes and birdswings, in the container are illuminated to produce bright spots of light on a dark background which are scanned across the detectors as the prism 28 rotates. The presence of the container at the measuring station is determined by the interruption of a light beam to produce a signal which primes a reject circuit. Detection of a flaw then triggers a solenoid to operate a reject mechanism. The use of a condensing lens system results in the formation of closely spaced images from containers of considerably different heights thus allowing the apparatus to be used with different size containers merely by adjusting the position of the head relative to the neck of the container to achieve the desired field of view. In a modification, Fig.6 (not shown), the image is produced by the condensing lens close to the lower end of the dove prism and the "collimating" lens is moved to a position above the prism close to the projection lens. In a further modification, Fig.7 (not shown), the prism used is a double dove prism, i.e. two dove prisms with their reflecting faces cemented together.
Patent GB-552258-A (GB)
Title: Improvements in the production of belting, bands, tapes and the like
IPC: F16G1/04
Filed: 1941-09-20
Abstract: 552,258. Cellulose derivative compositions; stiffening textile materials. BRITISH CELANESE, Ltd. Sept. 20, 1941, No. 12187. Convention date, Feb. 7. [Classes 2 (ii) and 15 (ii)] [Also in Groups VIII and XXIV] Transmission and conveyer belting comprises textile materials containing an organic filler, e.g. an organic cellulose derivative, a natural or synthetic resin or rubber, plasticized with a halogenated alkyl phosphate, preferably tri- (# - monochlor - ethyl) phosphate. Cotton belting in the form of canvas, duck, laminated fabrics or cords may be impregnated with a solution in a volatile solvent of, or a plastic mass comprising the plasticized filler. Instead of cotton yarns, synthetic resin or cellulose derivative fibres may be used. The cellulose derivative may be cellulose acetate, propionate or butyrate, ethyl or benzyl cellulose, or cellulose acetopropionate or acetobutyrate ; natural resins include colophony, copal, kauri, dammar, mastic and sandarac ; suitable synthetic resins are urea, or thiourea-aldehyde, phenolaldehyde, polyvinyl, alkyd, aldehyde-amide, and furfural-phenol resins. The belt may be composed of a single fabric or of a number of treated laminae, which may be cut straight or on the bias and stitched together or adhered under heat and pressure using plasticized cellulose acetate as the adhesive. The Specification as open to inspection under Sect. 91 comprises also belting woven from threads or yarns of cotton and threads or yarns of organic cellulose derivatives, resin or rubber, containing the halogenated alkyl phosphate, which may be incorporated therein before or after weaving. This subject-matter does not appear in the Specification as accepted.