baber/WOPTO huggingface dataset:
Patent GB-551948-A (GB)
Title: Improvements in or relating to electric impulse generators
IPC: H04M19/02
Filed: 1941-09-13
Abstract: 551,948. Converting; impulse generators. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and HOPLEY, H. E: Sept. 13, 1941, No. 11754. [Class 38 (ii)] [Also in Group XXXIX] .Impulses of variable fre-  quency and duration for use in routining equipments in automatic, telephone exchanges are produced by contacts actuated under the control of an electromagnet P connected in the anode circuit of a discontinuous control valve GDT, so as to be intermittently energized by rectified current from an A.C. source 10; 11 such as the exchange ringing current generator. The electromagnet may be arranged to cause cyclic operation of a chain of relays the contacts of which are connected so as to produce impulses of the required frequencies and ratios of make and break. Alternatively, the electromagnet may be arranged to cause step-by-step operation of a rotary shaft carryings cams operating contact springs producing the required impulses.
Patent GB-166997-A (GB)
Title: Improvements in heels for footgear
IPC: A43C13/02
Filed: 1920-04-29
Abstract: 166,997. Greer, A. April 29, 1920. Protectors, construction of; heel irons.- Heel tips 1 are made triangular in cross section of iron, vulcanite or rubber and are fitted in place simultaneously with a top lift 5 which has had a similarly shaped shaving removed and placed at 7 to form a heel seat.
Patent GB-980312-A (GB)
Title: Improvements in or relating to electric switches
Inventor: TUSHINGHAM THOMAS GEORGE
IPC: H02B5/01
Filed: 1960-04-04
Abstract: 980,312. Air-break switches. ENGLISH ELECTRIC CO. Ltd. April 4, 1961 [April 4, 1960], No. 11884/60. Heading H2B. An isolating switch comprises an insulating column 1 mounted at its base and having a contact member 7 attached to its free end, the column being rotatable about its longitudinal axis or an axis parallel to its longitudinal axis and the member 7 co-operating with a fixed contact 11 which is disposed at the free end of a second insulating column 3 having its longitudinal axis transverse to that of the column 1. The axes of the columns are in parallel planes to permit the use of a through conductor. An earthing contact 17 may be provided and the column 1 may be rotated by a crank 13. Connection to the contact member 7 is effected by a collector comprising a member 5 for attachment to a bus-bar or line, and a member 4 securing the member 7 and rotatable with respect to the member 5, Figs. 3 and 4 (not shown). The switch may be arranged as a changeover switch, Fig. 7 (not shown) or be connected in series with a cartridge fuse, Fig. 8 (not shown). In a further arrangement, the switch may be used as a fault-throwing switch. The Specification also describes and illustrates polyphase isolator switch arrangements which may be used in conjunction with air-blast or oil-immersed circuit-breakers.
Patent GB-129468-A (GB)
Title: Improvements in Internal Combustion Engines.
Inventor: WILDE ALFRED HERBERT
IPC: F02B75/22
Filed: 1918-07-20
Abstract: 129,468. Wilde, A. H. July 20, 1918. Four-stroke-cycle engines; driving-gear.- Engine units, which each comprise a pair of coaxial cylinders G, B, are disposed radially, or in the case of an engine having two units, in line on opposite sides of a central crank-shaft. An air charge for cushioning the moving parts is compressed in the end E of each cylinder G. In an engine having two units in line or more than two radial units, the angle between the axes of the units is 360/2N degrees, that between the cranks being 360/N degrees when N equals the number of cranks. In the construction shown in the Figure, eight units are disposed in two radial planes inclined to one another at 45 degrees. In an engine with two radial units and a single crank-pin the firing intervals are unequal.
Patent GB-541259-A (GB)
Title: Improvements in or relating to cinematograph screens
IPC: G03B21/58
Filed: 1940-07-20
Abstract: 541,259. Projection screens. TURNER, E. G. July 20, 1940, No. 11964. [Class 97 (i)] The top bar 16 of a screen 15 raisable by tackle 18 passing over a pulley 17 at the upper end of a column 11 is supported by three or more tie members 24, 25, 26, two of which are connected to it at or near its ends. The tie members may be wire ropes having turn buckles 28, or may be metal bars connected by pins and slots to a central plate secured to the rope 18, the arrangement being such that the end bars may fold down into contact with the bar 16 when not in use ; alternatively, the cords 25, 26 may pass round pins or rollers carried at intermediate points on the bar 16. The rope 18 may extend from the pulley 17 down to a winding drum on the back of the column 11, the column may be supported in a socket 12 removably secured in, or outside, a box 13 carrying the screen when out of use, and the screen may be connected to a spring roller within the box, toggle arms or other struts for the screen being dispensed with. Specifications 376,385 and 428,331 are referred to.
Patent GB-593053-A (GB)
Title: Improvements in or connected with boxes and like containers
IPC: A45D40/22
Filed: 1945-05-14
Abstract: 593,053. Boxes or cases. SILBERMAN, F. May 14, 1945, No. 12039. [Class 18] Powder boxes, cigarette cases &c. comprising twc members hinged together have two comparatively short hinge knuckle portions 3 provided on one member and a comparatively long knuckle portion 5 on the other member 2. A separate pivot pin is inserted through a hole in each short portion 3 into an aligned hole in the long portion 5.
Patent GB-395764-A (GB)
Title: Improvements in dynamo electric machines
IPC: G08C19/48
Filed: 1931-04-23
Abstract: 395,764. Electric signalling systems. BELL, J., Admiralty Research Laboratory, Teddington, Middlesex, and DRYSDALE, C. V., Admiralty, London. April 23, 1931, No. 12092. [Class 40 (i).] In apparatus of the resultant field type for producing in a receiver e movements corresponding to those of a transmitter b for remote indication and control, the single-phase exerting winding c on the rotor a of the transmitter is supplemented by a further winding f arranged preferably at right-angles to the main winding. The additional winding has the effect of making the field due to the exerting winding more definite in direction and less subject to distortion if the receiver is mechanically restricted in its motion or if insulation faults arise in the transmission system. The supplementary cross winding may be short-circuited on itself or connected to a variable impedance or to a source of alternating current in order to introduce an initial distortion of the primary field due to the exciting winding.
Patent GB-1298201-A (GB)
Title: Paints
Inventor: SELLARS KEITH
IPC: C09D5/29
Filed: 1969-03-07
Abstract: 1298201 Cellulose ether compositions; multicoloured paints HARLOW CHEMICAL CO Ltd 5 June 1970 [7 March 1969] 12168/69 Headings C3F and C3P A multi-coloured paint comprises differently coloured particles derived from two or more aqueous film-forming polymer emulsions each containing a cellulose ether as inner dispersed phases in an aqueous outer continuous phase comprising a dispersion of a clay which insolubilizes the cellulose ether. A small amount of the clay may be included in the polymer emulsions. The outer clay dispersion may also contain sodium hexametaphosphate, tetrasodium pyrophosphate, sodium tripolyphosphate, sodium carboxymethyl cellulose or silica. The polymer emulsions may be vinyl acetate homo- and co-polymers, e.g. ethylene-vinyl acetate copolymers, or acrylic ester homo- or copolymers, e.g. styrene-acrylate copolymers. The cellulose ether may be hydroxyethyl cellulose. Diethylene glycol butyl ether may also be present as a coalescing solvent.
Patent GB-740335-A (GB)
Title: Sanitary toilet for railway cars
IPC: B61D35/00
Filed: 1954-04-27
Abstract: 740,335. Railway-carriage sanitary closets. VAPOUR HEATING CORPORATION. April 27, 1954 [May 25, 1953], No. 12201/54. Class 26. In a railway carriage sanitary closet, the internal annular space between an outer bowl 10 and an inner hopper 20 is fitted with an auxiliary flush pipe 80 connected to a manually operable flushing valve 63 whereby said annular space is flushed simultaneously with the flushing of the inner hopper. As shown, the lower end 24 of the hopper 20 is sealed by a dump pan 25 pivoted on a shaft 30 and operated, together with the valve 63, by means of a foot-pedal 53 against the action of a spring 48. A drip-pan 68 leading into the bowl 10 is mounted beneath the valve 63 which supplies the normal flushing pipe 27. The auxiliary flushing pipe 80 is mounted on shaft 30 by means of brackets 82 and comprises a perforated straight rear section 87, curved side sections 93, T-shaped fittings 94, and a front U-shaped section 95 with a forwardly extending bigot portion 106. The fittings 94 are connected to a plug 96 which extends through the bowl 10 for connection, when necessary, to a supply of steam or detergent, and which is connected by a pipe 101 to a check valve 103 connected to flushing valve 63. The pipe sections 93, 95 are formed with angularly disposed slotted openings 105, 107 respectively, which produce fan-shaped jets for servicing the adjacent surfaces of the bowl and hopper 20.
Patent GB-932837-A (GB)
Title: A process for the manufacture of optically active methylamino carboxylic acids
Filed: 1962-03-30
Abstract: A process for the manufacture of optically active methylamino carboxylic acids comprises reacting in aqueous solution a salt formed from a strong base and an optically active amino carboxylic acid (a second amino group if present being protected if it is not to take part in the reaction) with benzaldehyde or a substituted benzaldehyde, reducing the resulting N-benzylidene or N,N1-dibenzylidene compound in a basic medium to the corresponding N-benzyl or N,N1-dibenzyl compound and then methylating the latter at the benzylated amino group or groups (i.e. unselective monomethylation or otherwise dimethylation in the case of the N,N1-dibenzyl compound) and subsequently splitting off the N-benzyl group of N,N1dibenzyl groups and any protecting group by hydrogenolysis in a neutral or acidic medium.  An alkali metal salt of the amino carboxylic acid is preferably used as the starting material.  The reduction of the N-benzylidene or N,N1-dibenzylidene compound may be carried out using catalytically activated hydrogen or a complex metal hydride.  The methylation is preferably carried out using formaldehyde in the presence of a reducing agent, preferably formic acid.  Many suitable amino carboxylic acids are specified. Suitable substituted benzaldehydes specified are salicylaldehyde, tolualdehyde, vanillin, and nitro-benzaldehydes such as p-nitrobenzaldehyde.  Examples 1-5 describe the stepwise preparations of the N-methyl derivatives of L-valine, L-phenylalamine, L-alanine, L-leucine and L-serine.  Example 6 describes the preparation of Ne -carbobenzoxy-Na -benzyl-L-lysine from Ne -carbobenzoxy-L-lysine and its subsequent conversion to Na -methyl-L-lysine.
Patent GB-559024-A (GB)
Title: Improvements in and relating to the manufacture of iodine compounds
IPC: C07C59/56
Filed: 1942-08-31
Abstract: 559,024. Iodine compounds. BOOTS PURE DRUG CO., Ltd., OXLEY, P., and SHORT, W. F. Aug. 31, 1942, No. 12257. [Class 2 (iii)] Iodo derivatives of α#-diphenylpropionic acids in which at least one of the phenyl groups is substituted in the para position by an OH group are obtained by iodinating the acids with the use of iodine, e.g. a solution of iodine in a solution of alkali iodide, in the presence of ammonia. The ammonium salts of the iodinated acids are salted out from solution and recrystallized from glacial acetic acid to give the pure acids. Examples are x-phenyl- #-(4-hydroxy-3, 5-diiodophenyl) propionic acid from α - phenyl - # - p hydroxyphenvlpropionic acid, α#-di-(3, 5-diiodo-4-hydroxyphenyl)-propionic acid from α#-di (4-hydroxyphenyl)- propionic acid and α-(3, 5-diiodo-4-hydroxyphenyl)-#-phenylpropionic acid from α-4- hydroxyphenyl-#-phenylpropionic acid. α#-di (4-hydroxyphenyl)-propionic acid is prepared by condensing p-methoxyphenylacetic acid with anisaldehyde, reducing the α#-di-panisylacrylic acid to α#-di-p-anisyl-propionic acid and demethylating. α-4-Hydroxyphenyl-#-phenylpropionic acid is prepared by condensing p-methoxyphenylacetic acid with benzaldehyde to form α-anisyl-#- phenylacrylic acid which is reduced and demethylated.
Patent GB-1184992-A (GB)
Title: D1 R3Method of Manufacturing Asbestos-Felt Bodies having Resilient Properties
IPC: B22F9/18
Filed: 1968-03-13
Abstract: 1,184,992. Non-woven fabric. BROWN, BOVERI & CIE A.G. 13 March, 1968 [18 March, 1967], No. 12263/68. Heading D1R. [Also in Division C1] Asbestos-felt bodies are produced by saturating the felt with a metal salt solution, drying, decomposing the salt to the metal or metal oxide by heating in an oxidizing, reducing or inert atmosphere, and forming the asbestosfelt into a packing or filtering body. The individual asbestos particles in the body are welded together by the metal or metal oxide coatings on the particles. One example describes impregnating asbestos-felt with magnesium nitrate which is decomposed to magnesium oxide, and compressed by sintering under pressure to form a filter. Another example describes the production of an electrically conductive felt by impregnating the felt with silver nitrate which is decomposed to metallic silver. The mechanical properties of the asbestos felt may be modified by pulverising the treated asbestos and simultaneously compressing and sintering to produce moulded articles.
Patent GB-710997-A (GB)
Title: Improvements in supports for detachable luggage carriers which are adapted to be placed on the roofs of motor cars, motor vans, caravans, or the like
IPC: B60R9/058
Filed: 1952-05-15
Abstract: 710,997. Luggage racks for vehicles. BURNS, A. T. Nov. 7, 1952 (May 15,. 1952], No. 12290/52. Class 103(2) A detachable luggage carrier adapted to be placed on the roof of a motor car, motor van, caravan, or the like, by means of detachable clips or the like, is provided at the corners with legs 1 each of which is provided with a housing 2 through which passes a rod 3 provided at one end with a roller 4 of rubber or other resilient material or non-resilient material covered with rubber. The housing is adapted to swivel along a horizontal axis on a pin 8 secured to a member 9 which is clamped to the leg 1. Normally the rods 3 are vertical with the outer end of each roller 4 engaging the roof of the vehicle, but the rods are placed horizontally with the rollers rolling on the roof when the carrier is being removed. Each rod 3 is adjustably mounted in the housing 2 and may be held in the horizontal position by means of a hinged stay 13 secured to a member 14 on the leg 1. Alternatively a stay slidable in a sleeve which can swivel on the leg 1 is pivotally connected at one end of the rod 3, a wing nut being provided 'to lock the stay from sliding in the sleeve.
Patent GB-756778-A (GB)
Title: Improvements in and relating to heat exchange units for use with refrigeration systems
IPC: F25D16/00
Filed: 1954-04-28
Abstract: 756,778. Refrigerating. DOLE REFRIGERATING CO. April 28, 1954 [Aug. 11, 1953 ; Oct. 9, 1953], No. 12357/54. Class 29. A reheater for evaporating refrigerant condensed in the evaporator during a defrosting cycle comprises a plate-like housing 1 containing a body 4 of heat-storing liquid or other material, a heating element 5 and a boiler element 9 for the refrigerant having an entry 17 from the evaporator and an exit 21a to the compressor suction. The heating element may be an electric heater as shown or may be a pipe conveying hot gas from the compressor to the condenser, the refrigerant flowing therethrough only during refrigerating cycles. The compressor suction receives vapour from an inclined passage 15 into which vapour flows from a loop 10, 11, 12, 13. Liquid refrigerant is fed into the loop through a pipe 18 extending at 19 into the part 12 of the loop. The vapour exit pipe 21 has a U-tube formation the base of which is connected by a pipe 23 to the bottom part 10 of the boiler loop. Oil from the boiler flows through pipe 23 and is swept to the compressor by the refrigerant vapour. The parts of the boiler may be of round or square cross section, the housing may have internal insulation 24 of balsa wood and the'housing may be evacuated.
Patent GB-682232-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B37/06
Filed: 1946-04-24
Abstract: 682,232. Photographic cameras. NAAMLOOZE VENNOOTSCHAP OPTISCHE INDUSTRIE , DE OUDE DELFT. April 24, 1946 [May 9, 1942], No. 12364/46. Classes 97 (i) and 98 (i). A photographic camera has an objective comprising a concave spherical mirror, and a correcting element having concentric spherical boundary surfaces, the angle of view being at least 60 degrees in one direction and in the perpendicular direction not more than half the first-mentioned angle. Preferably, the surfaces of the correcting element are concentric with the spherical mirror. As shown, light admitted through a diaphragm D passes through a correcting element C to a spherical concave mirror S, which forms an image at the film carrier F. The element C has concentric spherical surfaces which may also be concentric with the mirror surface. The objective has a greater angle of view in one direction than in the perpendicular direction by a ratio of at least 2: 1, and the ratio may be as much as 10: 1. The film is wound from one to the other of the spools F<SP>s</SP> over guide rollers T and over the film carrier F in the direction of the greater angle of view. The length of film exposed may be restricted by means of screens V, W sliding on a circular arc between the mirror and the film, the lengths of film exposed between them being chosen as multiples of a unit length. Specification 638,975 is referred to.
Patent GB-935803-A (GB)
Title: Improved fibrous cleaning and polishing pads and method for making them
IPC: D04H1/00
Filed: 1962-03-30
Abstract: <PICT:0935803/IV(a)/1> In bonding together the organic fibres of a stereoreticulate mass in the manufacture of cleaning and polishing pads, a web or mat of fibres having the required thickness and density is prepared and passed on a conveyer belt 20 through a spraying zone 23 and sprayed with liquid elastomer.  With webs of 3/4 to 2 inches thick the best penetration is obtained by spraying the web once on each side.  The spray head 24, preferably of the oscillating type, supplies sufficient elastomer to penetrate the upper half of the web, which then passes through a drying zone 25 where the elastomer is dried to an indispersible but unvulcanized condition. The web is then inverted by an inverter 27 and the other side sprayed by a similar spray head 29 after which the elastomer is cured in the oven 31.
Patent GB-1087147-A (GB)
Title: Improvements in or relating to crossing frogs
IPC: E01B7/12
Filed: 1966-03-22
Abstract: 1,087,147. Crossing frogs. ACERIES DE PARIS & D'OUTREAU. March 22, 1966 [May 26, 1965], No. 12435/66. Heading E1G. Rails at a crossing are recessed to receive a cast frog which is welded thereto. The frog has locating spigots welded within holes in the rail webs and is of H-section, sweeping upwards towards the rear to provide an abutment for running rails which are welded to extensions of the frog acting as fishplates.
Patent GB-678473-A (GB)
Title: A slide or runner unit for extending table tops and like structures
IPC: A47B1/10
Filed: 1950-05-18
Abstract: 678,473. Tables; cabinets. LAWRENCE, A. A., and WINICK, J. 1. Nov. 20, 1950. [May 18, 1950 ; June 13, 1950] Nos.12447/50 and 14715/50. Classes 52 (i) and 52 (iii). A sliding runner for extensible tables or cabinet doors, wherein movable panels are connected by a belt to move simultaneously, has a channel-sectioned casing 1 with outwardly directed flanges 4 slidably engaged by flanges 7 on plates 5 carried by the moving panels 2 from which depend into the casing lugs 16 secured to an endless belt 14 passing around pulleys 12 mounted within the casing. A tensioning screw 19 may be provided for the belt.
Patent GB-802183-A (GB)
Title: Shovelling apparatus
Filed: 1956-04-25
Abstract: 802,183. Shovelling machines. HENDERSON, W. M. July 25, 1957 [April 25, 1956], No. 12648/56. Class 68(1) A shovelling apparatus for use with a tractor consists of a hollow post 1 to which is pivoted a jib 3 carrying at its outer end a frame 5 attached to the jib by two parallel links 6 and 7. A bucket 8 is pivoted to the frame at 9 and held in a position with the bottom of the bucket parallel to the frame by a detent 12. A cable 18 is attached to the jib at 21 passes round a pulley 20 carried by an extension of the link 7, over a pulley at the top of the post and down to a winch 17 driven from the tractor. Winding in the cable first moves the bucket forward, until the spindle of the pulley 20 abuts the strut 25 and then luffs the jib. The contents of the bucket may be discharged by releasing the detent 12 through the bell crank 13 and cable 14, which allows the bucket to tip or by operating through a cable 16 the latch 15 which allows a door 10 at the rear of the bucket to open. The bucket is drawn back to the starting position by the cable 22 until the stop 23 strikes the abutment 24.
Patent GB-734384-A (GB)
Title: Surgical injection devices
IPC: A61M31/00
Filed: 1953-05-06
Abstract: 734,384. Surgical injection devices. KURKJIAN, Y. H. May 6, 1953, No. 12666/53. Class 81 (2). An injection device comprises a casing having an open-ended medicament chamber 11 with a seat 17 at one end, a plunger head 21 slidable in the chamber 11 for ejecting medicament and carried by a plunger rod 20 slidably mounted in the casing and protruding beyond one end of the casing, an abutment member engageable with said plunger rod 20 and said chamber 11 for pulling the plunger rod 20 and head 21 towards the seat 17 and locking the plunger head 21 in airtight engagement with the seat 17 to seal one end of the casing a closure sealing means being provided at the open end of the casing. The plunger seat 17 is provided with a resilient washer 18 and is formed at the junction of the medicament chamber 11 with a hollow shank 12 for the passage of the plunger rod 20. A knob 22 is used for pulling the plunger rod 20 and head 21 so that the plunger head 21 engages with the washer 18 and makes an airtight seal. The plunger rod 20 is locked with the plunger head 21 in sealing position by means of a threaded nut 24 which abuts the rear end of the shank 12 and which engages with a screw-thread 23 on the plunger rod 21. A snap closure cap 14 is provided at the open end of the medicament chamber 11. The washer 18 may be omitted in which case the casing and plunger seat are formed of resilient material. With a resilient washer 18 the plunger is made of rigid material. Alternatively the washer may be rigid and the plunger resilient.