baber/WOPTO huggingface dataset:
Patent GB-1376467-A (GB)
Title: Compacts having low electrical resistivity
IPC: H01B1/00
Filed: 1972-05-12
Abstract: 1376467 Diamond and boron nitride compacts GENERAL ELECTRIC CO 12 May 1972 [20 May 1971] 22445/72 Heading C1A [Also in Division C4] A compact having a density in excess of 90% of the theoretical density, and an electrical resistivity of less than 10 ohm-cm is obtained by mixing fines, e.g. particles less than 100 Á diameter, of boron alloyed synthetic diamond, beryllium alloyed cubic boron nitride or mixtures thereof with 0À5 to 20% by wt. based on the weight of the final mixture of zirconium diboride or titanium diboride powder or mixtures thereof and subjecting said mixture to a temperature of 1300‹ C. and a pressure such that the conditions used are found in the cubic stable region of the cubic/hexagonal phase diagram of the diamond and nitride materials. Preferably the diboride used comprises about 1% by wt. of the mixture. The materials formed find use as abrasives, relay contacts, high speed mechanical switch contacts, and brushes in D.C. and universal type electric motors.
Patent GB-982993-A (GB)
Title: Multipole circuit breaker units
IPC: H01H71/10
Filed: 1961-06-21
Abstract: 982,993. Automatic circuit - breakers. HEINEMANN ELECTRIC CO. June 21, 1961 [July 1, 1960], No. 22509/61. Heading H2B. A multipole circuit-breaker unit comprises a plurality of single-pole circuit-breakers 21 ... 23, each having an automatically-resettable mechanism 35 to open and close the contacts 27, 28, and an overload-responsive tripping device 69 for releasing the mechanism on overload. An automatically resettable intertripping member 70, 71 is moved by the mechanism 35 of one circuit-breaker, when tripped, to move the tripping devices 69 of the other circuit-breakers to cause their release. In the arrangement shown, the circuit-breakers are of the type having electromagnetic hydraulic time-delayed tripping and in the event of overload, an armature 69 is attracted to turn a latch 56 to permit a toggle 35 to collapse and open the contacts under the bias of a spring 32. The intertripping member 70, 71 comprises in each circuit-breaker, a wire lever 70 pivoted on a fixed pivot 41, the levers 70 being rigidly interconnected by an insulating rod 71. When an overload occurs in one pole, the toggle in the circuit-breaker concerned, on collapsing, strikes a limb 74 of the associated lever 70 causing all the levers 70 to turn about their pivots 41. This causes the other limbs 76 of the levers 70 in the untripped circuit-breakers to move the armatures 69 of those circuit-breakers and cause their tripping, the energy for this being provided by the mechanism of the overloaded circuit-breaker and not by its tripping device. Each circuit-breaker is provided with a slotted bifurcated operating member 38 and the circuitbreakers are mounted in a common sealed casing 20 which supports a common operating handle 47. An insulating rod 44 is secured to the handle 47 and extends through the slots 45 in the members 38.
Patent GB-405352-A (GB)
Title: Improvements in or relating to baskets or like containers provided with handles
IPC: B65D25/32
Filed: 1932-08-12
Abstract: 405,352. Fruit baskets &c. UNIVERSAL SEAMLESS CONTAINERS, Ltd., Bush House, Aldwych, London, and BURLAND, J. HARRIS-, Aylesford Mills, Larkfield, Kent. Aug. 12, 1932, No. 22658. [Class 18.] A basket or like con. tainer, e.g. for packing fruit of the kind having a handle which can be swung through 180‹ so that it lies within the basket &c. for nesting, has means for locking the handle in an upright position consisting of a flexible tongue 20 on the handle or as shown on a reinforcing band 12 on the body, which can be bent to engage the edge of the basket or the handle respectively. The engagement may be by the tongue passing through a hole in the handle or by bending it to embrace the rim. Pivot pins may pass through the reinforcing band 12 and this and/or the handle may be of thin sheet metal, vulcanized fibre &c. The basket may be moulded from fibre pulp material. Specification 392,957 is referred to.
Patent GB-1040337-A (GB)
Title: Improvements in or relating to the manufacture of suppositories
Inventor: SCOTT-MILLER ROBERT
IPC: A61K9/02
Filed: 1962-06-14
Abstract: A suppository comprises a core containing an active ingredient mixed with an inert base and coated with a substance which contains no active ingredient but serves as a lubricant when the suppository is inserted in the body.  The active ingredient or ingredients e.g. oxycodone pectinate, morphine pectinate, theophylline or a mixture of hydrocortisone acetate, benzocaine and bismuth subgallate, are mixed and moist granulated with an inert base e.g. maize starch, lactose, polyvinyl pyrrolidone, kaolin levis or mixtures thereof.  The mixture is shaped and compressed to form a core.  The coating comprising hydrogenated fat, a mixture of polyethylene glycols in alcohol, cocoa butter or a polyvinyl pyrrolidone is applied to the core in a coating pan. The disintegration time of the core is controlled by adjusting the composition or the compactness of the inert base.
Patent GB-277003-A (GB)
Title: Improvements relating to the use of medicaments insoluble or sparingly soluble in water
IPC: A61K47/18
Filed: 1927-08-31
Abstract: 277,003. Soc. of Chemical Industry in Basle. Sept. 1, 1926, [Convention date]. Addition to 218,982. Medicines for internal use.-The products of the parent Specification, according to which solvents for medicaments which are insoluble or sparingly soluble in water are prepared by combining a water-soluble alkyl- or alkylene-urea with a watersoluble carbamic acid ester, are modified by substituting for the carbamic acid ester a watersoluble aliphatic acid amide or N-substitution derivative thereof. The solvents may contain equal parts by weight of the constituents, or they may comprise a mixture of several alkyl ureas or of several aliphatic acid amides; water may also be present in the solvents. Reference is made to the combinations of ethylurea with acetamide and acetdiethylamide and to the use of the products as solvents for barbituric acid derivatives.
Patent GB-531946-A (GB)
Title: Improvements in or relating to magnetic chucks
IPC: B23Q3/154
Filed: 1939-08-09
Abstract: 531,946. Magnetic chucks. BING, J. Aug. 9, 1939, No. 22960. Convention date, Aug. 13, 1938. [Class 60] A magnetic chuck employs one or more cylindrical permanent magnets magnetized transversely to their axes. The cylindrical magnet 5 has polarity as shown in Figs. 1 and 2 and is mounted on a plate 9 of non-magnetic material having an arm 10 by which the magnet may be rotated rather more than 90 degrees to release the work. The magnet is housed in a soft iron cylinder slotted to form segments 3a, 3b separated by non-magnetic material 4 and mounted by a non-magnetic disc 2 on the back plate 1. The segments carry pole pieces 6 separated from one another by non-magnetic material 7 and from the magnets by non-magnetic material 8. To prevent accidental rotation of the magnet the extension 10a of the arm 10 may be provided with a set screw. In a modification the magnet has opposed N poles with opposed S poles at right-angles, the cylinder being slotted into four parts each having a pole piece. In a modification for larger work four magnets are mounted as shown in Fig. 4. In another modification six magnets are employed. The arms 10 of these magnets may be slotted to engage pins on a common actuating mechanism. The cylindrical magnets may have flats as indicated by chain lines.
Patent GB-892132-A (GB)
Title: A process for the manufacture of chemical compounds in a state of high purity
IPC: C01B31/30
Filed: 1958-07-17
Abstract: Very pure metal, boron or silicon nitrides or carbides are produced by reacting a volatile compound of the metal, silicon or boron with nitrogen or a volatile carbon compound in a high frequency electrical discharge induced by an external coil or by the plates of an external condenser.  Examples given are:-producing boron nitride from boron chloride, silicon nitride from silicon chloride, and titanium nitride from titanium tetrachloride by reacting with hydrogen and nitrogen in each case; and boron carbide from boron trichloride and silicon carbide from silicon tetrachloride by reacting with propane, with or without hydrogen.  Specifications 838,378 and 892,014 are referred to.
Patent GB-330445-A (GB)
Title: Sealing device for tyre valves
IPC: B60C29/04
Filed: 1929-07-26
Abstract: 330,445. Goodyear Tire & Rubber Co., and Disney, G. E. Dec. 7, 1923, [Convention date]. Air-tubes. - To maintain an airtight joint between the valvestem 11 and the air-tube 12, a resilient metal plate 25 is clamped between the bridgewasher 15 and the lock-nuts 27, 28.
Patent GB-460507-A (GB)
Title: Improvements relating to thermionic valve holders
IPC: H01R33/76
Filed: 1936-08-21
Abstract: 460,507. Thermionic - valve holders. BULGIN, A. F., and BULGIN & CO., Ltd., A. F. Aug. 21, 1936, No. 23088. [Class 38 (i)] In a valve - holder with resilient sheetmetal sockets c having their ends c<1>, c<2> bent over so as to lie above an insulating plate or between two plates a, b, the bent-over ends are arranged to lie some on one side of and the remainder on the other side of an additional plate f so that a longer leakage path may be provided between sockets having a considerable difference of potential. The plates are held together by a central square rivet and two diametrically opposed rivets. The sockets shown have spring tongues m engaging the under-side of the plate b, and soldering loops d.
Patent GB-359081-A (GB)
Title: Improvements in apparatus for converting electrical signals into sound, such as loudspeakers
IPC: H04R1/30
Filed: 1930-07-31
Abstract: 359,081. Loud-speakers. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and OLIVER, D. A., of General Electric Co., Wembley, Middlesex. July 31, 1930, No. 23095. [Class 40 (iv).] Apparatus for the conversion of electric signals into sound includes a plurality of sound-radiating surfaces of which at least one is a cone 2 and one a horn 5, the central portion only of the cone being adapted to act as a piston for the horn. In one form, the central portion of the cone 2, Fig. 1, is formed as a cylinder 3 projecting into the throat 4 of the horn 5. A central conical member 6 is arranged in the throat 4 and is rigidly held by radial supports 7. In a modification, the conical member 6, Fig. 2, is bolted to the cylinder 3. The cone is adapted to radiate the higher frequencies.
Patent GB-464319-A (GB)
Title: Well point
IPC: E03B3/12
Filed: 1936-08-24
Abstract: 464,319. Well points. MOORE, T. F. Aug. 24, 1936, No. 23200. Convention date, May 7. [Classes 68 (i) and 85] A well point comprises a tube 3 projecting below an upper head 1 and spaced bars 6 welded &c. around it, the lower ends of the. bars being cut away at 13 to receive a pipe 14 welded &c. thereto and to a lower head 18. The lower ends of the pipes 3, 14 are level to form a seat for an annular valve 28 normally resting on a frame 24 held to the head 18 by screws 241 and carrying a spring- pressed hinged non-return valve 31. A pilot section 21, with teeth 22 adapted to break up the ground by rotation or oscillation, is secured to head 18 by a rivet 20 which prevents access of stones &c. to the device. The screen 4 comprises an intermediate layer of fine wire mesh between inner and outer layers of coarse wire mesh, the latter layers being formed of a continuous length of material wound round the point and welded in position. When sinking the point by jetting, back pressure of the jetting fluid raises the valve 28 to prevent escape of the fluid to the screen.
Patent GB-245065-A (GB)
Title: Improvements relating to photographic films
IPC: G03D15/00
Filed: 1925-09-17
Abstract: 245,065. Akt.-Ges. f³r Anilin-Fabrikation. Dec. 23, 1924, [Convention date]. Films; finishing.-Films are caused to slide more readily in the projection apparatus by applying to the rear side of the film support before exposure, fatty substances, or other frictionreducing materials, so that these are embedded in the surface, and do not merely form an adherent layer. The material, which may, for example, be sodium stearate. or gypsum, zinc carbonate, or white pigments generally, in colloidal suspension. is preferably dissolved or suspended in a solvent of the material of the support, and is applied by brush, or by spraying, or by drawing the film through the liquid, for example during manufacture of the film material in wide strips.
Patent GB-404896-A (GB)
Title: Improvements in electric alarm apparatus responsive to wireless signals
IPC: H04L15/26
Filed: 1933-08-21
Abstract: 404,896. Selectors responsive to code signals. OLIN, S. W. F. O., 3, Kristinelundsgatan, Gothenburg, Sweden. Aug. 21, 1933, No. 23273. [Class 40 (iv).] A selector responsive to wireless distress signals consisting of 4-second dashes separated by 1-second spaces comprises a motor-driven shaft 10, Fig. 1, rocked by the armature 11 of the signal-responsive magnet 6, Fig. 5, so as to drive alternately by a roller 16 during dashes and spaces, respectively, two discs 18, 17. A lever 25 eccentrically pivoted to and frictionally engaging the dash-disc 18 acts as a driving pawl to advance a ratchet-wheel 31 one step provided that the dash is long enough, and after three such steps the signal circuit is closed. If a dash or space is too long, a projection 46 or 21 acts on a pivoted lever 32 to withdraw locking pin 33 so that the wheel 31 returns to normal. The wheels 17, 18, restore by spring action when the drive ceases and have depressions 44, 45 to prevent further drive after projections 46, 21 have become operative. In a modification, Figs. 3, 4, the space-disc is in the form of a sector 17a mounted on a crank-arm 49 pivoted at 49a and is moved into position to be driven by the sleeve 16a by an arm 60 pulled down at the end of a satisfactory dash-period by an eccentric lever 62 on a disc 63 secured to the dash-disc 18. The space-disc is then driven continuously throughout the space and the ensuing dash until arm 60 is released by pin 67 on disc 63 engaging catch 68. The sector 17a is arranged to act on arm 22a to withdraw locking pawl 33a after a period of 5 seconds this arrangement providing that the ratchet disc 31a will be released if a space exceeds 2 seconds even if it be temporarily interrupted by stray disturbances. The signal circuit is closed at contact 38 by an arm 37a which drops into a recess 54 on the ratchet disc 31a when the disc has advanced three steps but only if the third dash is of correct length this being ensured by a pivoted member 92 on the path of the end 81 of switch arm 37a. After the signal circuit has been closed, the apparatus is restored by manual operation of arm 37a which acts on a projection 79 to withdraw the locking pawl 33a. If the shaft 10 is driven by an electric motor, its circuit 85, Fig. 5, may be controlled by a switch 84 linked to an arm 87 which is eccentrically mounted on a shaft 89 driven by the motor and co-operates with a catch 91 on the armature 11, the arrangement being such that when the catch is again engaged the switch will only be opened after a period of delay so that the motor will not be stopped if the engagement of the catch happens to occur during a signal space.
Patent GB-1221866-A (GB)
Title: Time delay circuit
Inventor: WALTERS WILLIAM RAYMOND
IPC: H03K5/04
Filed: 1968-05-16
Abstract: 1,221,866. Transistor monostable circuit. RCA CORPORATION. 16 May, 1968 [16 May, 1968], No. 23317/68. Heading H3T. A monostable has a normally off transistor 25 whose collector is coupled through a timing circuit such as C28, R27 to a normally conducting transistor amplifier 10 comprising at least two transistor stages stabilized against, for example, temperature and supply voltage variations, which amplifier 10 is reciprocally coupled through resistor 32 to the base of the transistor 25. The amplifier 10 may be an integrated circuit "operational amplifier." Trigger pulses are fed in at 21, and resistance 27 may be variable to adjust pulse width.
Patent GB-492120-A (GB)
Title: Reel for fishing
IPC: A01K89/012
Filed: 1937-08-25
Abstract: 492,120. Fishing reels and rods. BUGATTI, E. Aug. 25, 1937, No. 23347. Convention date, Oct. 31, 1936. [Class 48] A fishing-rod support has an auxiliary source of motive power detachably coupled with the reel mounted on the rod. The reel is mounted on a rod 22, Fig. 1, inserted into a socket 23 and secured by a collar 30, the rod resting on a pin 29 passing through one of a series of holes 28. The socket carries an electric motor 1 connected to batteries on board a boat, &c., and also carries guides 24 with adjustable rollers engaging the sides of the reel casing. A worm 3, Fig. 2, mounted on a spindle 2 engages a pinion 4 on a sleeve 6 carrying friction discs 7 in engagement with discs 8 carried by a casing 9. The pressure of the discs is adjusted by a member 13 pinned to a shaft 14 threaded to receive a hand wheel 15. The casing 9 is connected by a reversible pawl 11 with the spool 10 which is recessed to receive a spring-pressed pin 17 on the handle 16 for direct drive, in which case shaft 2 may be pinned to the casing.
Patent GB-155902-A (GB)
Title: Improvements relating to screw propellers
IPC: B64C11/04
Filed: 1919-09-23
Abstract: 155,902. Vessey, E. A. Sept. 23, 1919. Screw propellers.-In a propelier having detachable blades with means for mounting them at any desired angle, the spigot end 1 of the blade B is turned with two conical surfaces 2, 4 of large and small taper respectively. A split washer 7 rests on the conical surface 2 and is castellated at 8 so that it may be fixed in its socket without relative turning. The socket-piece 6 is threaded externally at 9, and a locking-ring 10 is screwed on to it. The tapered space between the and of the spigot and the socket is filled by a tapered sleeve 12 which is partly slit from both ends as at 14, so that it has sufficient radial elasticity to bind the spigot in the socket. The conical surface of the washer 7 is provided with radial serrations which prevent the rotation of the blade in its socket and permits its angular adjustment when required. An air screw is preferably made with detachable sockets which have flanged bases 18 engaging in fixed and loose undercut flanges 20, 21 on the hub. Castellations 22 are provided to transmit the drive, and the sockets are secured by a nut 24. Holes 27, 28 are provided in the blade and socket to locate them angularly during assembly. In a marine propeller, the tapered sleeve 12 is not required. Specification 130,349 is referred to.
Patent GB-260222-A (GB)
Title: Improvements in separable cuff buttons, solitaires, studs or the like
IPC: A44B5/02
Filed: 1926-09-22
Abstract: 260,222. Ballou & Co., Inc., B. A., (Assignees of Ballou, F. A.). Oct. 26, 1925, [Convention date,]. Sleeve-links; studs. - A sleeve-link or collar stud consists of separable stud and socket members, the former of which is provided with a stem having a shoulder adapted to be engaged by a spring in the socket member to fasten the members and to be released, to permit separation, upon a relative rotation of the members. In the form shown in Fig. 1, the stud member 10 of a sleeve link is provided with a stem having ribs 25 projecting below a shoulder 24 on the tapered head 43 and adapted upon relative rotation of the members 10, 11 of the sleeve link, to flex the spring 15 in the socket member 11 and permit separation of the members. The spaces between the ribs 25 are curved to facilitate flexing the spring and the stud member is reduced in section behind the ribs to permit the stud and socket members 10, 11 to rock relatively to one another. Fig. 6 shows a two-part shirt stud according to the invention with an ornamental head 29 carrying a stud member 28 adapted to be attached to the socket member 30 in a manner similar to that described. Fig. 9 shows an alternative form of sleeve-link wherein a pair of spring fingers 35 with bent ends 39 project from the stud member 37 and are adapted to engage over abutments 38 in the socket member. The members are disengaged by turning the members relatively to one another, thereby compressing the fingers 35 radially by projections 40 to clear the abutments 38.
Patent GB-1246205-A (GB)
Title: Improvements in or relating to travelling wave tubes
IPC: H01J23/027
Filed: 1969-05-08
Abstract: 1,246,205. Travelling-wave tubes. SIEMENS A.G. 8 May, 1969 [9 May, 1968], No. 23416/69. Heading H1D. Flashover between the collector 1 of a travelling-wave tube and a surrounding earthed metal shielding cylinder 2, which also serves as a magnetic screen, is prevented by a tube 3 of synthetic resin bearing metallized coatings 6 and 7 on its internal and external surfaces, one of the coatings-6, as shown-stopping short of the ends of the tube. The tube 3 is slid into the cylinder 2 before the assembly of the collector, which is provided with coolant input and output ports 4 and 5. Tube 3 is preferably of plasticized epoxy resin containing 50% of ground quartz.
Patent GB-1014905-A (GB)
Title: Colour cathode ray tube and method for and apparatus for fabrication
IPC: H01J9/227
Filed: 1963-06-12
Abstract: 1,014,905. Colour television tubes. RADIO CORPORATION OF AMERICA. June 12, 1963 [July 6, 1962], No. 23464/63. Heading H1D. In a method of manufacturing a multi-dot phosphor screen for a three-gun shadow-mask colour television tube by a photographic method involving for the laying down of each colour phosphor exposure of a photosensitive layer containing phosphor material to a light beam through the apertures of the mask, the light source is positioned to expose the screen areas not through the associated mask apertures through which the electron beam will pass but through adjacent mask apertures or through mask apertures farther removed, thus making the light rays which print the dots of the same dot triad convergent at the screen surface instead of divergent, in order to correct for " degrouping misregister " of the beam spots e.g. 95, Fig. 6, with respect to the phosphor dots 92 with radial deflection and simultaneously applied dynamic convergence of the electron beams. An optical refractive member 130, Fig. 10, comprising a single or two contoured elements 131, 132, the lower of which, 132, is wedge-shaped is interposed between the light source 121, 122 and the mask 15 to correct " radial " and " foreshortening misregister." Additionally, the spacing between mask and screen is less at the edge of the screen than at the centre. A detailed manufacturing procedure is given.
Patent GB-816616-A (GB)
Title: Improvements in and relating to the construction of the combustion chambers of internal combustion engines
IPC: F02B23/06
Filed: 1956-07-31
Abstract: 816,616. Combustion chambers. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. July 31, 1956 [Sept. 13, 1955], No. 23569/56. Class 7(3) In a combustion chamber provided with a lining 12 which when cold maintains an air gap 14 between itself and the combustion chamber wall but closes the gap when hot, the surface 12a of the lining,. or the surface 7 of the chamber wall, is treated, e.g. by a sulphatizing or phosphatizing process, to prevent metallic fusion of the liner and chamber wall when they come into contact. The lining 12 which is secured in position by a retaining ring 13, may be secured in a separate member 4a secured in the piston. The fuel is sprayed immediately on to the lining 12 to form a thin film thereon which is vaporized by air rotating in the chamber. In a modification, Fig. 3, the inner surface of the lining is coated with a porous material 23 which facilitates evaporation of the film of fuel.