baber/WOPTO huggingface dataset:
Patent GB-432179-A (GB)
Title: Improvements in and relating to potential changers
IPC: H02M3/42
Filed: 1933-10-17
Abstract: 432,179. Converting. MALLORY & CO., Inc., P. R., 3029, East Washington Street, Indianapolis, Indiana, U.S.A. Oct. 17, 1933, No. 28692. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 2, 1934]. [Class 38 (ii)] [See also Group XXXVII.] Apparatus for converting low-tension D.C. to high-tension D.C. for automobile radio receivers comprises a transformer having its primary 15 connected to a low voltage D.C. source 10 through an electromagnetic interrupter 17 and having its secondary 28 connected through a vibratory reed rectifier 29 operated by the coil 16 which operates the interrupter 17 and through a filter circuit 30 to the high tension terminals B + , B- of the radio receiver. Fig. 2 shows one form of combined interrupter and rectifier in which the operating coil 16 supported by spool ends 44 from the magnetic base 38 is preferably provided with a tubular magnetic core into which adjustable ends 45 are screwed. The vibratory reed 18 of the interrupter is made of strip metal such as silicon steel having good conductivity and high permeability and is supported by a high permeability member 39 which is insulated from the base. The reed 18 carries a contact 20 co-operating with a contact 21 on a short auxiliary reed 22 which is mounted on an insulated member 46 and co-operates with a stop 50 so that when the coil 16 attracts the reed 18 the contacts 20, 21 separate with a wiping action. The arrangement of the reeds 34, 37 of the rectifier is similar to that of the reeds 18, 22 the reeds 18, 34 having the same natural resonance frequency. Fig. 3 shows an alternative arrangement of interrupter and rectifier in which the coil 161 is mounted on a magnetic support 54 which is preferably integral with the base 52. The coil 16 has a headed core 55 provided with a screwed shank 56, the position of the core head being adjustable by means of a nut 57 and shims 58. The main reeds 181 and 341 which are provided with magnetic end pieces 59, 60 are carried by and insulated from magnetic members 53, 55 which may be integral with the base. The arrangement of the reeds &c. is otherwise similar to that described with relation to Fig. 2 and the coil 16<1> being disposed as shown. An alternative circuit embodying two interrupters and two rectifiers is also described. Specifications 429,671 and 431,137, [Group XXXVII], are referred to.
Patent GB-1386494-A (GB)
Title: Acrylate interpolymers
IPC: C08L33/04
Filed: 1972-06-20
Abstract: 1386494 2-Chloroacetoxymethyl-5-norbornene B F GOODRICH CO 20 June 1972 [21 June 1971] 28734/72 Heading C2C [Also in Division C3] 2-Chloroacetoxymethyl-5-norbornene is prepared by reacting 2-hydroxymethyl-5-norbornene with chloroacetyl chloride in benzene in the presence of triethylamine. The product is used as a comonomer in the preparation of novel acrylate elastomers (see Division C3).
Patent GB-417419-A (GB)
Title: Electrodeposition of cadmium
IPC: C25D3/26
Filed: 1933-10-18
Abstract: 417,419. Electrodeposition of cadmium. ANDREWS, E. S., 329, High Holborn, London. -(American Smelting & Refining Co. ; 120, Broadway, New York, U.S.A.) Oct. 18, 1933, No. 28885. [Class 41.] The electrolyte contains an addition agent consisting of all the product obtained by baking a whole cereal or an extract from the whole baked cereal. Two ounces of baked cereal to 1000 litres of electrolyte is sufficient. A suitable addition agent is obtained by mixing equal parts of whole wheat flour and bran with a small portion of molasses into a stiff paste and baking at a temperature not exceeding 375‹ F. until the cake assumes a dark brown colour. It is then either ground for direct addition or extracted with water. A suitable electrolyte contains 100-165 gms. of cadmium as sulphate and 20-50 gms. of sulphuric acid per litre ; small quantities of impurities such as zinc and iron sulphates may be present without harm. An inert anode of ferrosilicon and a cathode starting sheet of electrolytic cadmium are employed.
Patent GB-262091-A (GB)
Title: Improvements in and relating to oil-immersed electric apparatus
IPC: H01F27/04
Filed: 1926-11-16
Abstract: 262,091. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Nov. 26, 1925, [Convention date]. Transformers. - Damage of oil-immersed apparatus, such as transformers, by excessive voltage is prevented by providing means external to the casing such as a spark gap between a ball f or ring d attached to the terminal c and a ring e, such that the external break-down voltage is not greater than the limiting working voltage or than the minimum surface break-down voltage of the bushing b. The ball or ring may be mounted on the ring e. Instead of being associated with the bushing b, the spark gap may be in parallel with an external supporting insulator.
Patent GB-1037720-A (GB)
Title: Stabilization of liquid sulphur trioxide
IPC: C01B17/90
Filed: 1964-07-14
Abstract: Liquid sulphur trioxide is stabilized by addition of a stabilizer containing (1) at least 0.02% of a substituted siloxane polymer containing no substituent group other than methyl or methoxy and (2) at least 0.1% of dimethyl sulphate, the weight ratio of dimethyl sulphate to siloxane polymer being at least 3 to 1.  The sulphur trioxide may contain 0.01%-1% of sulphuric acid. The siloxane polymers may be of general formula R1[R211SiO]nSiR1113 in which R1, R11 and R111, which may be the same or different, are methyl, methoxy or hydrogen, at least one of R1, R11 and R111 being methyl or methoxy, n is an integer from 1 to 900.  These polymers may contain 1.0 to 1.6 methyl groups per silicon atom.  Alternatively, the siloxane polymers may be cyclic and of general formula [R1R11SiO]n where n is between 3 and 900, R1 and R11, which may be the same or different, may be either hydrogen or a methyl or methoxy group at least one of R1 or R11 being either methyl or methoxy.  Siloxane polymers, e.g. various cyclic, linear or combinations of cyclic and linear linkages and/or cross-linkages are included.  The methyl siloxanes, particularly trimethyl end-blocked dimethyl siloxanes, either individually or in mixtures are particularly effective.  Such polymers may be fluids or semi-solid greases of viscosity 10-10,000 C.S. at 25 DEG  C.  The larger the amounts of siloxane polymer and dimethyl sulphate the greater the stabilizing effect. Subsequent pressure treatment improves the stability.  The stabilizer may be added to the sulphur trioxide and dissolved by agitation or sulphur trioxide may be condensed in a closed vessel containing the stabilizer.
Patent GB-394857-A (GB)
Title: Improvements in electro-dynamic speakers
IPC: H04R9/06
Filed: 1932-10-17
Abstract: 394,857. Loud-speakers. ROLA CO., 2570, Superior Avenue, Cleveland, Ohio, U.S.A. Oct. 17, 1932, No. 29028. Convention date, June 2. [Class 40 (iv).] A moving-coil loudspeaker comprises a pot P, Fig. 2, having notches N on opposite sides, and a pole plate O, Fig. 1, clamped to the pot and movable transversely to the central pole 2, upon slackening the clamping screws, to allow adjustment of the air gap. The pot preferably has flanges 7, Fig. 1, to which the pole plate is fixed. The centre pole 2 passes through a supplemental bottom plate 4 of magnetizable material. The leads L, 31, from the moving coil and energizing winding are taken to terminal blocks 30, 32 on the casing 17. The moving coil is centred by an external spider Z.
Patent GB-281215-A (GB)
Title: Improvements in covers for the heads of screws, nails and the like
IPC: A47G3/00
Filed: 1927-11-01
Abstract: 281,215. Berge, J. Nov. 1, 1927. Nails. - A cover for screw or nail heads is formed from a cup, Fig. 1, with a hole in the washer-like bottom to receive the screw, nail, &c., the edges of the cup then being spun or bent over to form an ornamental closure, Figs. 4 and 6.
Patent GB-479220-A (GB)
Title: Improvements in or relating to reflectors for use with mercury vapour discharge and other lamps
IPC: C09K11/02
Filed: 1936-10-27
Abstract: 479,220. Fluorescent reflectors. SKINNER, G. D., and BENJAMIN ELECTRIC, Ltd. Oct. 27, 1936, No. 29155. [Class 75 (ii)] [Also in Group XX] A colour - correcting or light - modifying reflector for use with tungsten filament, mercury vapour, and other lamps, is produced by impregnating with a fluorescent material a porous oxide coating formed by anodizing aluminium. The oxide coating may be softened by means of a solvent, and the fluorescent material either dusted thereon as a powder or applied thereto mixed with a liquid carrier. The oxide coating may be allowed to harden by normal ageing, or it may be sealed by dipping or wiping with lanoline or whale oil. Suitable fluorescent materials include rhodamine, eosin, anthracene, primuline dyes and powdered materials such as willemite. and sulphides or silicates of zinc, cadmium, and selenium. The reflector may be so arranged with respect to the lamp as to give total indirect reflection, or the lamp and reflector may be wholly or partially enclosed by a diffusing globe or lantern.
Patent GB-216798-A (GB)
Title: Improvements in attachments for tapping, drilling and the like
IPC: B23B31/08
Filed: 1923-11-19
Abstract: 216,798. Clark, Ltd., G., and Smith, J. W. Nov. 19,1923. Attachments for tapping.-In an attachment for drilling, tapping, &c. the tool-holder is driven through a universal joint and a yielding . clutch. The tool-holder 12 is driven through balls 9 from a sleeve 7 slidably keyed on a member 2 which is rotated by means of projections 5, pins 3 and projections 4 on a member 1. The balls are held in pockets in the sleeve by a cover plate 10 and are pressed into engagement with pockets on the tool-holder by a spring 14, the compression of which is adjusted by a nut 15. The tool-holder is rotatably secured in the member 2 by a nut 13.
Patent GB-1490479-A (GB)
Title: Spinning device
IPC: B29C48/03
Filed: 1976-07-14
Abstract: 1490479 Static homogenizer BAYER AG 14 July 1976 [19 July 1975] 29290/76 Heading B1C [Also in Division B5] In a spinneret conduits carrying the spinning fluid lead into a housing containing a static mixing apparatus whose free spaces are filled with packing material. The static mining apparatus consists of inserts 10 according to Fig. 2. Each insert is constructed from a connecting element from which in two planes cross-pieces 11 extend in all four directions and between them slots 12 are arranged. A plurality of such inserts are interconnected so that in each case cross pieces and slots interpenetrate. The inserts are preferably arranged so that their planes are arranged diagonally to the inner wall of the housing.
Patent GB-599542-A (GB)
Title: Detergent compositions
IPC: C11D1/72
Filed: 1945-12-05
Abstract: A detergent composition, suitable for use in the cleaning of soiled textile materials, comprises (i) a condensation product of ethylene oxide with an alkylated phenol and (ii) up to 400 per cent. based on the weight of ingredient (i) of a b -monohydroxyethylamide of a fatty acid.  Ingredient (i) must be derived from an alkylated phenol bearing an alkyl substituent or substituents totalling between 6 and 20 carbon atoms, one molecular proportion of the alkylated phenol being condensed with between 6 and 30 molecular proportions of ethylene oxide while ingredient (ii) must be derived from a fatty acid of from 9 to 19 carbon atoms.  The detergent composition may be used in aqueous solution with the addition of alkali, for example soda ash. Alkylated phenols which may be used in preparing ingredient (i) include a , a , g , g -tetramethylbutylphenol, dodecylphenol, di-tertiary butylphenol, octylphenols, octylcresols and 4-methyl-2-tertiary octylphenol.  Suitable examples of ingredient (ii) are stearo-b -hydroxyethylamide, lauro-b -hydroxyethylamide, oleo-b -hydroxyethylamide, ricinoleo-b -hydroxyethylamide and the b -hydroxyethylamides of mixtures of fatty acids, for example those derived from coconut oil, tallow or castor oil.  In examples the alkylated phenol of ingredient (i) is p-(a , a , g , g -tetramethylbutyl) phenol, 4 methyl-2-(a , a , g , g -tetramethylbutyl) phenol or 4-methyl-2-tertiary-octyl-phenol while the fatty acid of ingredient (ii) is coconut oil fatty acids, stearic acid and stearic acid respectively.  In each case an aqueous solution of the detergent composition together with soda ash is compared with a similar solution not containing ingredient (ii).  Specification 470,181 is referred to.
Patent GB-411092-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01H9/00
Filed: 1932-10-20
Abstract: 411,092. Regulating switches. ROWBOTHAM, J. L., and HACKBRIDGE ELECTRIC CONSTRUCTION CO., Ltd., Hersham, Walton-on-Thames. Oct. 20, 1932, No. 29348. [Class 38 (v).] In on-load transformer tap changing apparatus tap-changing is effected in the arrangement shown in Figs. 1 and 2 from say tap 1 to tap 2 by closing tapping switch contact C associated with 2, then closing the contactor switch H, moving the contact J over the contacts K of the variable or tapped resistance (or choke) G opening H and finally opening the tapping switch contact B associated with 1. Rotation of the hand wheel 27 Fig. 3 on the shaft 22 rotates the shaft 10 and makes contact between one of the movable contacts 12 of one tapping switch and a corresponding fixed contact 14, closes the contactor switch as in Fig. 6 (not shown) by means of the cam 25, makes and breaks contact between the successive movable contacts 23 and the corresponding fixed contacts 24 which are connected to the tappings of the resistance or choke, opens the contactor switch by means of a cam 26 as in Fig. 5 (not shown) and finally rotates the shaft 9, breaking contact between one of the movable contacts 11 of the second tapping switch and one of the fixed contacts 13 associated therewith. The lead L (Fig. 2) is connected to the fixed contacts 15 and 16.
Patent GB-889987-A (GB)
Title: Improvements in electrically-operated pnuematic valves
Inventor: MULHAUS JOHANNES OSCAR HANS
IPC: F16K31/06
Filed: 1957-09-18
Abstract: 889,987. Electromagnets. CLIMAX ROCK DRILL & ENGINEERING Ltd. Sept. 15, 1958 [Sept. 18, 1957], No. 29404/57. Class 35. [Also in Group XXIX] In a solenoid valve in which a spring-loaded armature plunger 14 lies in a solenoid bore and in which one end of a plunger closes a port in a solenoid enclosure when the solenoid is unenergized and the other end of the plunger closes a second port in the enclosure when the solenoid is energized, the solenoid is embedded in a block of thermo-setting plastic and the wall of the solenoid bore is formed by the plastic of the block. The valve may be a pilot valve bolted on a cylinder containing a piston or a main valve 52 so that pressure fluid at 36 passes through an annular cooling space 42, through a seat 22 opened by a valve spring 16 when the solenoid is unenergized, and through plunger slots 32 into a cylinder passage 34. On energizing the solenoid, the valve seat 22 is closed and seat 20 open, whereby passage 34 is exhausted through seat 20 and passage 38. The functions of openings 36, 38 may be interchanged whereby supply to passage 34 occurs on energization of the solenoid. The valve closure members are formed by the ends of a core of rubber 18 in the plunger 14.
Patent GB-261544-A (GB)
Title: Improvements relating to the spindles of flyer-spinning, roving and analogous machines
IPC: D01H7/40
Filed: 1925-11-21
Abstract: 261,544. Smith, W. Prince-, and Robinson, J. Nov. 21, 1925. Spindle apparatus; doffing arrangements.-In flyer spinning, roving, and like machines having spindles which are carried by footstep bearings and provided with intermediate bearings offering lateral support, the upwardly projecting neck E of each flyer B, Fig. 1. is supported in a non-rotatable bush D fitted in an aperture C in a rail A. The rail A is carried on members F secured to vertical rods G, which are adapted to be lifted by cams L on shaft K to raise the bushes D clear of the necks E preparatory to doffing. The apertures C and bushes D may be slotted radially at C<1>, D<1>, Fig. 2, to pass the thread clear of the bushes and rail A when doffing. In a modification, each aperture C is rebated and each bush D stepped correspondingly, as shown in Fig. 4, and is held against rotation by a pin M and set screw N. When doffing, the rail A is raised by cams L, and the bushes D are retained on the necks of the flyers by a split ring O. In machines where the space between the tops of the flyers and the lowest drawing roll is insufficient to permit the rail A to be raised, cam or like mechanism is provided to lower the spindles when it is desired to doff.
Patent GB-1038216-A (GB)
Title: A new or improved burner for high calorific value gases
IPC: F23D14/10
Filed: 1963-07-25
Abstract: 1,038,216. Gas burners. A. H. GREAVES. Oct. 20, 1964 [July 25, 1963], No. 29470/63. Heading F4T. An elongated gas burner comprises a gas tube having holes 3 or nipples injecting neat gas into an elongated mixing tube formed by two parallel spaced plates 6 the lower ends of which are made divergent and the upper ends of which are formed into a trough. The space between the side plates and the distance of the side plates above the gas nozzles are adjustable.
Patent GB-626222-A (GB)
Title: Improvements relating to piston packings, more particularly for vehicle brakes
IPC: F16D65/22
Filed: 1946-10-03
Abstract: 626,222. Elastic valves. FIAT SOC. PER AZIONI. Oct. 3, 1946, No. 29548. Convention date, March 24, 1942. [Class 135] [Also in Groups XXVI and XXXIV] A piston packing ring 5, having an outer surface which is normally elliptical and a maximum free diameter equal to or slightly greater than that of a cylinder 1, is freely mounted between a metal piston head 4 and a thrust member 6, without any rigid part confining the inner surface of its bore, by means of springs 10, 7. As shown, the spring 10 engages a valve piston comprising a thrust member 11, a packing ring 12 having a maximum free diameter less than that of the cylinder, and a metal head 13 which in turn bears against a packing ring 5<SP>1</SP>. During the suction stroke of the piston 4, 5, 6, the head 13 is retracted from the ring 5<SP>1</SP> and liquid flows into the cylinder 1 through a port a and through the longitudinal bore of the valve piston. On the pressure stroke the packing ring 12 is expanded radially into sealing contact with the cylinder by means of the hydraulic pressure within the cylinder and the mechanical pressure of the spring 10. The packing ring 5 is expanded similarly, the radial hydraulic pressure counteracting the axial hydraulic pressure thereby preventing deformation of the ring. As applied to a wheel cylinder, opposed pistons separated by a spring are used and thermal contraction of the packing rings 5, due to braking heat, is avoided by keeping the maximum free external diameter of the rings below that of the cylinder bore. Any contraction that may take place is automatically taken up by the spring.
Patent GB-808451-A (GB)
Title: Improvements in or relating to semi-conductor devices
IPC: H01L29/73
Filed: 1956-09-27
Abstract: 808,451. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 27, 1956 [Sept. 30, 1955], No. 29559/56. Class 37. A monocrystalline semiconductor device such as a diode, has a current supply wire connected between a terminal and an electrode secured to the body, which has approximately the same resistance as the semi-conductor body. In the Figure, a germanium crystal 1 is soldered to a gilt plate of molybdenum 3 and carries an indium alloy electrode 10. The wire 11 may consist of 20 per cent chromium and 80 per cent nickel and has the same resistance as the forward resistance through crystal 1.
Patent GB-1103707-A (GB)
Title: Drying method and apparatus
IPC: B01D1/18
Filed: 1966-07-01
Abstract: 1,103,707. Dispersible food agglomerates. NATIONAL DAIRY PRODUCTS CORPORATION. 1 July, 1966 [19 July, 1965], No. 29570/66. Heading A2E. [Also in Division B1] A solution or dispersion of solid substances (e.g. a foodstuff) in liquid is dried by passing hot air through chamber 13, pumping the solution or dispersion through nozzle 15 so that a spray of droplets in the shape of a hollow cone enters the chamber, and ejecting a stream of non-cohesive solid particles of a substance, compatible with the material to be dried, entrained by air into the chamber from the opening 35 and conduit, 33, whereby the non-cohesive particles collide with and adhere to the spray of droplets to form agglomerates which are dried by the hot air. The dried agglomerates are withdrawn from the chamber through shoot 37 and screw conveyer 41, while the moist air and fines are drawn by blower 12 through duct 43 into cyclone separator 45. The fines withdrawn from separator 45 may be utilized as the required non-cohesive particles. When a foodstuff is to be dried, the non-cohesive particles may be sucrose or flour. The non- cohesive particles are supplied, from vibrating-feeder 29. and hopper 31, to a stream of air introduced into conduit 33 by blower 34. Deflector 36 causes the entrained particles to be ejected in a conical pattern into chamber 13. Drying air, heated in duct 14, is drawn by blower 12 into chamber 13 through baffles 10 which cause helical flow of air through the chamber. Gates 39 in shoot 37 comprises a two-door dump port, and are alternately opened and closed by a cam to maintain a seal between conveyer 41 and chamber 13.
Patent GB-152673-A (GB)
Title: Improvements in and relating to turbo-compressors and turbo-blowers
IPC: F04D27/02
Filed: 1920-10-20
Abstract: 152,673. Plohl, M. July 4, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Multi-stage; introducing air at high pressure at rotor discharge apertures. - The efficiency of a pump is increased by the conveyance of air, at a higher pressure than that coming from the rotor, into the space of the guiding-device surrounding the outflow apertures of the rotor. An arrangement for doing this is shown applied to one stage of a multi-stage pump. The rotor h is provided with the usual blades j, and air passes through them to the discharge chamber c. It is then divided by an annular rib m, part flowing to the next section of the pump and part flowing through the annular gap g to the back of the rotor, through the auxiliary blades k into the chamber b. This causes an increased compression of the air coming through the blades j. The high pressure air may be conveyed to either or both sides of the rotor.
Patent GB-657710-A (GB)
Title: A new or improved cultivating tool
IPC: A01C15/02
Filed: 1948-11-16
Abstract: 657,710. Hoes;fertilizer distributers. COLLINS, J. H. Nov. 16, 1948, No. 29693. [Class 6(ii)] A tubular handle is split and splayed at one end to form hoe blades 102 and provided with clips for mounting a fertilizer or like container 14. An opening in one end of the container may be brought into register with an opening in the handle and a refilling opening in the back end of the container be uncovered by withdrawing the clip. For regulating the flow, a slide 12 may be set as required relatively to a ramp 11.
Patent GB-815260-A (GB)
Title: An improved elastic suspension device
IPC: F16F15/073
Filed: 1956-10-01
Abstract: 815,260. Linkwork. LJUNGSTROM, E. G. Oct. 1-, 1956 [Oct. 3, 1955], No. 29819/56. Class 80 (3). An elastic suspension device for one member 11 relative to another 10 comprises at least one pair of separate straight springs 12, 13 located at opposite ends of, and extending in opposite directions from, the member 11. The springs are non-pivotally attached to the members 10, 11 respectively and allow relative movement in one direction only. In an arrangement providing for turning movement only two pairs of springs are arranged in radial planes at right angles.