baber/WOPTO huggingface dataset:
Patent GB-1496944-A (GB)
Title: Radiation-sensitive materials and methods of image formation
IPC: G03C1/67
Filed: 1975-04-15
Abstract: 1496944 Photo-sensitive material EASTMAN KODAK CO 15 April 1975 [15 April 1974] 15496/75 Heading G2C A photo-sensitive layer comprises (a) as sole photolytically active component, a reducible cobalt III complex which contains at least two monodentate ligands and is free of sensitizable anions and (b) to enable photo-reduction of the complex, a spectral sensitizer which is capable of absorbing radiation of wavelength greater than 300 nm. The monodentate ligand may be amonine, aquo, halo, alkylenediamine, azido, thiocyanate or nitro. The complex may also contain at least one didentate ligand. The spectral sensitizer may be in the form of an anionic moiety of the cobaltic complex. It may be a silver halide sensitizing dye or a fluorescent brightening agent, e.g. a cyanine, merocyanine, styryl or oxonol dye or a stilbene fluorescent brightening agent. Reduction of the complex, which may be assisted by heating at 80-150‹C, releases at least one ligand, e.g. ammonia. The complex may be decomposable by the released ligand. On exposure, an image may be produced in a separate image-recording material, e.g. one which is visibly responsive to ammonia. The imagerecording material may be contacted with the photo-sensitive material during exposure (preferably through a separation layer) or, when the redox reaction requires heat for completion, after exposure. The image-recording material may be photo-sensitive (to visible or UV light). An image may, alternatively, be produced in the photosensitive material, e.g. by reaction of the non- reduced complex with a leuco dye or colour developer, or by reaction of the reduced complex with a compound containing a thioamide functional group or a cross-linkable polymer. A multilayer material may produce a multi-colour image. Specific examples of complexes, sensitizers, etc. are given.
Patent GB-949566-A (GB)
Title: Decorative material
IPC: B44C5/04
Filed: 1960-05-03
Abstract: 949,566. Laminates. CELANESE CORPORATION OF AMERICA. May 3, 1960 [May 4, 1959], No. 15519/60. Heading B5N. A decorative rigid or flexible material is made by embossing a sheet of plain or tinted transparent thermoplastic material with a pattern of textile material, colouring the embossed surface, and laminating it to a transparent support sheet of the thermoplastic material or a laminate of a number of such sheets. The thermoplastic material may be cellulose acetate, propionate or butyrate, ethyl cellulose, or a polymer or copolymer of vinyl acetate, vinyl chloride, vinyl butyral, methyl methacrylate or styrene. Embossing and colouring may be effected by hot-pressing the thermoplastic sheet to a linen or other woven fabric, removing the fabric, and applying a coloured solution, e.g. a cellulose acetate dope containing carbon black and a blue dye, by wiping with a squeegee or brushing, to fill the embossed recesses. After drying, a second coat of different colour may be applied to the raised portions of the sheet. Lamination may be effected with adhesive such as a cellulose acetate dope. The embossing may be done continuously as by a roller covered with textile fabric.
Patent GB-404536-A (GB)
Title: Improvements in automatically tripped electric switches
IPC: H01H71/58
Filed: 1933-05-29
Abstract: 404,536. Automatic circuit-breakers. STAHEL, W., 117, Braggerstrasse, Baden, Switzerland. May 29, 1933, No. 15524. Convention date, May 27, 1932. [Class 38 (v).] An electric switch comprises a switching member n<1> retained against spring force by a catch m which may be tripped either by a push-button a, or by electromagnetic, thermal, or other automatic means acting upon a tappet x carried by a sliding rod u to move a pawl q out of engagement with a leaf. spring p carried by the catch. The rod u screws into a threaded head-member t for adjustment, and carries an indicating scale w. Adjustable stops j may be provided for the lever s connecting the member t and pawl q, and further tappets x may be provided on the rod u.
Patent GB-259643-A (GB)
Title: Improvements in the production of hydrogen practically free from carbon monoxide starting from water gas or the like
IPC: F25J3/02
Filed: 1925-06-15
Abstract: 259,643. Cicali, G. June 15, 1925. Separating gases by liquefaction. - Water gas &c. is freed from a portion of its carbon monoxide by any physical or chemical method, and is then mixed with so much nitrogen that the ratio by volume of hydrogen to carbon monoxide and nitrogen in the mixture is the same as that of hydrogen to carbon monoxide in the original gas. The mixture is separated by liquefaction to obtain hydrogen free, from carbon monoxide. The water gas after the removal of a portion of its carbon monoxide is conveyed by a pipe 1, and the nitrogen to be added is conveyed by a pipe 2, to a compressor C cooled internally by water, and is further cooled by a heat exchanger r. In a modification, the purified water gas and the nitrogen may be compressed in separate compressors and mixed together after passing through a common heat exchanger or separate exchangers. The gas passes into the middle pipe of a three-pipe coil S, the purified hydrogen and the separated nitrogen &c. passing respectively through the outer and inner pipes. The gas is delivered through an inlet B into the base of the rectifying column, and rises through liquid nitrogen on plates P, which liquefy the bull of the carbon monoxide. The remaining gases rise into pipes T where the carbon monoxide and the bulk of the nitrogen are liquefied and fall back on to the plates, while the hydrogen is conveyed to an expansion chamber e, where its temperature is lowered, and to a chamber E surrounding the tubes T, finally passing through an outlet F and a pipe 3 to the outer pipe of the coil S. The liquid deposited in the base of the column is conveyed through a pipe 5, a coil V, and an expansion valve, to a tank W in which it evaporates, cooling the tubes T and passing away through a pipe 4 to the inner pipe of the coil S. The operation may be repeated in a similar apparatus to obtain hydrogen of higher purty, further nitrogen being added to replace the carbon monoxide lost.
Patent GB-855535-A (GB)
Title: Improvements in equipment for parenteral administration
Inventor: BUTLER WILLIAM FRANCIS
IPC: A61M5/162
Filed: 1959-05-06
Abstract: 855,535. Surgical injection apparatus. CUTTER LABORATORIES Inc. May 6, 1959, No. 15579/59. Class 81(2) A drip feed chamber for use in parenteral administration of fluids has an inlet tube and air passage at one end, these being sharpened so as to be capable of readily piercing the stopper of a fluid container. In the form described a transparent body 42, of slightly conical shape, is sealed to a cover 43 having an inlet duct 44 extending through it. The upper part of it carries an air inlet tube 52, the lower end of which projects sideways to form a projection 56 on which a cap 58, enclosing an air filter 61, may be attached. The air inlet tube preferably extends above the fluid tube and both are bevelled, as at 54, 47, so as to pierce the stopper of a container. Preferably the stopper used has an internal recess extending through the greater part of its thickness, so as to leave a thin diaphragm at its outer end, and the recess has an inwardly directed annular projection, approximately halfway down its depth which serves to grip the inlet tube of the feed indicator when this is in position.
Patent GB-338880-A (GB)
Title: Improvements in thermostatic devices for electrically heated fabrics
IPC: G05D23/24
Filed: 1929-05-18
Abstract: 338,880. Negromanti, A. May 18, 1929. Thermostats .-An electrically-heated fabric is provided with means by which any extensive or local overheating causes a break in the heating circuit. The heating resistance 1 is arranged in a circuit including a battery 2 and thermal switch 3, and a control wire 5, the resistance of which increases with temperature, arranged close to the wire 1 over its whole length and insulated from it. The circuit of the wire 5 includes the battery 2 and a heating resistance 4 adjacent to the thermal switch 3. The switch 3 is open when cold, but by the passage of a heating current in the resistance 4 the switch closes the circuit of the main heater 1. Any overheating causes an increase in the resistance of the control wire 5 so that the current in the resistance 4 is no longer sufficient to keep the switch 3 closed. In a modification, Fig. 2, not shown, the thermal switch is closed when cold and its circuit includes two wires with free ends which follow the fabricheating wire but are insulated from it. The two wires are covered by a metallic oxide which when cold is a bad conductor but when overheating occurs in the fabric becomes a good conductor and allow current to pass through the heater of the thermal switch which is thereby opened and the main circuit broken. In another modification, Fig. 3, not shown, the controlling circuit and the heating circuit are arranged as the four arms of a Wheatstone bridge. When the temperature equilibrium of the bridge is disturbed by overheating, a current flows in the diagonal of the bridge and operates either a thermal switch of an electromagnetic relay. The length of the arms of the bridge may be changed by a slider to enable different voltages to be used in the heating circuit, and the temperature limits of the device may be varied by varying the ratio of the arms of the bridge.
Patent GB-117007-A (GB)
Title: Improvements relating to Filing Cabinets, Drawers, Boxes, and the like.
Inventor: KEY JOHN TREVOR
IPC: B42F17/02
Filed: 1917-10-27
Abstract: 117,007. Key, J. T. Oct. 27, 1917. Locking-followers; fastenings.-The drawer &c. for a card index is provided with an anchored screwed rod a, on which works a nut f attached to the card-supporting plate g. The rod engages a bearing at the back of the drawer, and may be secured at the front by a pivoted hasp e engaging a necked portion d of the rod.
Patent GB-648833-A (GB)
Title: Improvements in or relating to antenna systems for electromagnetic waves
IPC: H01Q13/18
Filed: 1947-06-13
Abstract: 648,833. Electric resonators. SPERRY GYROSCOPE CO., Inc. June 13, 1947, No. 15643. Convention date, Jan. 6, 1943. [Class 40 (viii)] [Also in Group XL(c)] In a cavity resonator used in a U.H.F. aerial system (see Group XL (c)), the formation of modes of oscillation other than the desired mode is prevented by providing the resonator with a number of wires 25; of resistive material, extending from spaced points on the periphery of the resonator base to the top of a conductor post 24 located at the centre of the base (Figs. 7 and 8). A cylindrical wave-guide member 36 used with such a resonator and provided with circumferentially positioned apertures 45 for radiating (or receiving) electromagnetic energy is further provided with an energy absorbing block 43 (e.g. of carbon) spaced #/4 from an adjustable end wall 51 so that all energy propagated along the member 36 which is not radiated by the apertures 45 is absorbed by the block (Fig. 21).
Patent GB-700029-A (GB)
Title: Improvements in mashers for vegetables and the like
IPC: A47J19/00
Filed: 1951-07-03
Abstract: 700,029. Mashing or grating foods &c. MOULIN - LEGUMES MANUFACTURE D'EMBOUTISSAGE DE BAGNOLET (M.E.B.) ANCIENS ETABLISSEMENTS MANTELET and BOUCHER SOC. ANON. July 3, 1951 [July 8, 1950], No. 15739/51. Class 28(2) A rotary masher is detachably secured to the ring 7 of its tripod legs 9 by spring- pressed pivoted hook latches 15 which yield and then grip over the top edge of the container C when the container is pressed down against the slopes 18 of the latches. The container is provided with lifting handles P. The U-sectioned tripod legs 9 have extensions 13 with anti-skid ends 14, the extensions 13 being foldable inwards when not wanted. The mashing mechanism comprises a removable sieve G against which the food is rubbed by a helical plate P on a hand-rotated axle M, the plate being pressed down by a spring bar b removably secured by hooks e on the inside wall of the container. The axle M has a stop washer 1 bearing against a rigid top cross-bar B removably latched to the top of the container by swinging in locking members 4, Fig. 6, so that their projecting pawls 5 enter slots 2a in the upturned ends of the bar B.
Patent GB-167640-A (GB)
Title: Improvements in machines for making hearth rugs
IPC: D04G3/00
Filed: 1920-06-11
Abstract: 167,640. Mason, W. June 11, 1920. Tufting - machines. - Fabric is drawn from a roll 9 over the usual notched bar 3 by means of friction rollers 11, 12. The notched bar is lowered, after the insertion of a row of fabric strips, by means of a hand lever and rack 4, and the movement of the lever also advances the friction rollers 11, 12 one step to take up the finished portion of the fabric. Fabric strips are kept in a bin 2, which may have a perforated bottom. The needle carriage may be moved across the machine by a screw.
Patent GB-640621-A (GB)
Title: Welded brace connector for tubular frame structures
IPC: E04B1/58
Filed: 1948-06-11
Abstract: 640,621. Making tubular structures. NASSAU PRODUCTS. June 11, 1948, No. 15838. Convention date, Sept. 12, 1947. [Classes 83 (ii) and 83 (iv)] [Also in Group X] Uniting by fusion.-A connector fitting for joining intersecting tubes for the manufacture of welded metal frame structures comprises a hollow or solid body with wide arcuate peripheral portion 1 and sides 3 both speroidally curved with non-coincident centres of curvature and a saddle extending between the ends of the peripheral portion. In use, the saddle of the connector is positioned on a tube P and welded and tubes B, B<SP>1</SP> are seated without machining and welded to the peripheral portion. A tube T may be welded to the curved face 3. A vent hole may be provided in the body to facilitate welding.
Patent GB-984864-A (GB)
Title: Improvements in radiants for gas fires
IPC: F24C15/24
Filed: 1960-05-05
Abstract: 984,864. Hollow gas fire radiants. D. R. TENNANT. July 5, 1961 [May 5, 1960], No. 15880/60. Heading F4W. A hollow gas fire radiant is formed in two parts, an upper part 1 with a louvred front 3 and a back wall 5, and a lower part 2 forming a combustion chamber and made of a refractory material better able to withstand high temperatures than that used for the upper part. The upper part tapers slightly and then rapidly from front to back and has thorns 6 protruding inwards from the back wall 5, which has an exhaust opening in the top, 8. It may be made from a porous refractory porcelain material. The bottoms of the side walls 18 of the lower part are thickened out, and there is a slot 11, 20 in each side wall, part of each slot being in the upper part and the rest in the lower part. The lower part may be constructed from a refractory mix containing pre-calcined refractory material. The louvres have thorns protruding inwards from them.
Patent GB-1336379-A (GB)
Title: Valve assemblies for pressurised aerosol-dispensing containers
IPC: B65D83/14
Filed: 1971-05-19
Abstract: 1336379 Pressurized dispensing containers NEOTECHNIC ENG Ltd 5 May 1972 [19 May 1971] 15902/71 Heading F1R [Also in Division B8] A valve assembly for a pressurized aerosoldispensing container comprises a casing member 10, a hollow body 16 secured to the casing member, an elongate valve member 22 sealingly extending through respective apertures in the casing member and hollow body for longitudinally inward movement during a dispensing operation from an outer position Fig. 1, outlet and inlet passages 28, 32, respectively, formed in the valve member and extending from the outer and inner ends of the valve member, a second hollow body 36 secured to the inner end of the valve member and enclosing the hollow body 16 to form a gap there between. In the outer position shown in Fig. 1, the outlet passage 28 exits to atmosphere at both ends 31, 34, and the inlet passage 32 communicates the gap between the hollow bodies 16, 36 with a chamber 29 within the hollow body 16 to transfer liquid contents thereto. Upon depressing the knob 33, the valve member 22 moves inwardly thus connecting the aperture 31 of the outlet passage and disconnecting the passage 32 with the chamber 29 Fig. 2 (not shown). Simultaneously, the hollow body 36 is moved inwardly forming a space (42) between the hollow bodies into which liquid contents flows. The device in use is inverted and the liquid contents in the portion 14 is drawn up into the gap between the hollow bodies by the phenomenon of capillary attraction. In order to allow virtual complete emptying of the container, the casing member 10 is provided with a portion 14 of reduced area.
Patent GB-685050-A (GB)
Title: Process for the distribution of plant protection, pest and contagious-disease combatting agents
IPC: A01N25/02
Filed: 1949-06-15
Abstract: In the production of a mist of finely divided active substances for plant protection or pest-combating purposes by dissolving the substance in a solvent and spraying the resulting solution, an easily vaporable liquid is used as the solvent and the spraying is so carried out, without the application of pressure thereto, by means of a compressed air current, that the solvent completely evaporates, leaving behind a mist, the liquid droplets of which contain only the pure active substance and have a particle size of less than 50m .  A crystallisation preventing substance may be added to the solution. Examples of solutions to be sprayed are D.D.T. in trichlorethylene, p-nitrophenyldiethylmonothiophosphate in methylene chloride, iron salts of dimethylthio-carbonic acid in chloroform, and hexachlorocyclohexane in methyl alcohol with spindle oil as crystallisation inhibitor, and a mixture of D.D.T. and hexachlorocyclohexane dissolved in methylene chloride.  The process can also be used to distribute the cheap waste products of the organic chemical industry for protection against frost.
Patent GB-256166-A (GB)
Title: Improvements in teat cups for milking machines
IPC: A01J5/06
Filed: 1926-02-24
Abstract: 256,166. Pessell, R. C. Feb. 24, 1926. Cow-milkers. - For automatically closing the main suction passage to the interior of a milking - machine teat cup should the cup fall, or be kicked from the teat, the suction passage at the lower end of the teat cup is fitted with a transeverse, rotatable plug or valve member w which is free to be turned under the action of gravity upon a weighted arm u<2> connected to the outer end of the valve member, this member being open when the cup is vertical and assuming a closed position if the cup falls. The valve member fits a cylindrical housing on the nipple n and has a part n<1> circumferential, or a diametrical, passage w<1> which, when the cup is in use, registers with the passage leading to the inside of the liner a. The member may have a collar z, and may be held against axial movement by a spring-pressed ball x engaging a groove x<1>. The device is shown applied to a cup constructed as set out in Specification 260,007.
Patent GB-553917-A (GB)
Title: Improvements in or relating to snap-action electric limit switches
IPC: H01H21/28
Filed: 1941-12-12
Abstract: 553,917. Snap action switches. TURNER L. V. (Talbot, F. A.). Dec. 12, 1941, No. 16095. [Class 38 (v)] In a limit switch, a lever 7 has an extension 12 which first strains one of the two set-up ends 13, 14 of a coiled torsion spring, and, after sufficient stressing, moves the upper part 26 of a pair of toggle levers to break the toggle and allow a pivoted insulating arm 17 to snap over, the end 47 of which moves a rod 43 bearing bridging contacts, two, 41, 42 being shown, away from pairs of fixed contacts 32, 33. A torsion spring 30 may return the lever. Toggles may be provided for holding the contacts at each limit. The arm 17 may bear a shield 18 to isolate the live parts of the switch from the actuating mechanism. The upper part 26 of the toggle may be shaped so that the extension 12 may actuate the contacts positively if the spring breaks. Specification 536,636 is referred to.
Patent GB-607027-A (GB)
Title: Improvements in or relating to superheterodyne receiving arrangements
IPC: H03D7/18
Filed: 1946-05-28
Abstract: 607,027. Valve circuits for wireless reception. PHILIPS LAMPS, Ltd. May 28, 1946, No. 16231. Convention date, Sept. 7, 1939. [Class 40 (v)] A circuit for supersonic heterodyne reception using a diode mixer includes a resistance in series with the diode which is only partly bridged by a condenser. The oscillator voltage Ep cos #pt may be made large, which together with the rendering of the diode characteristic less steep due to the added series resistance reduces the tendency to hum, cross-modulation or howling, such as may arise if the incoming signal is simply related to the intermediate frequency.
Patent GB-1207631-A (GB)
Title: Plated through holes
Inventor: WORTH FREDERICK HAROLD
IPC: H05K3/42
Filed: 1968-04-04
Abstract: 1,207,631. Printed circuits. TECHNOGRAPH Ltd. 27 Feb., 1969 [4 April, 1968], No. 16256/68. Heading H1R. [Also in Division C7] Plated through holes 17 in printed circuit panels having encapsulated conductors 13 are formed by coating the whole surface of the panel with a removable resist 16, forming the desired holes 17 in the panel, treating the panel with a sensitizing solution 18, removing the resist 16 and thereafter metallizing the walls of the holes by electroless deposition. The conductors 13 may be formed by bonding conductors to base panel 11 by adhesive 12, by photo-etching a copper foil laminate or by removing metal mechanically after which the circuitry is completely encapsulated by epoxy resin 15. The electroless plated copper may be built up by electroplating. The conductors may be in a plurality of layers and form inductors, resistors or capacitors.
Patent GB-387898-A (GB)
Title: Improvements in or relating to starting devices for internal combustion engines
IPC: F02N99/00
Filed: 1932-06-09
Abstract: 387,898. Mechanical switches without quick action. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. June 9, 1932, No. 16264. Convention date, Sept. 7, 1931. [Class 38 (v).] In an engine starter comprising an inertia mass b which is set in rotation by an electric motor a, a lever p switches on the motor a by means of a sliding insulating member t carrying a contact member s adapted to engage contacts u, v in the motor circuit. The contact u is carried by a spring-controlled yoke x pivoted at w and having 'its free end 'curved for engagement by the tapering ends of the 'sliding member t. On the movement of the lever p to the right, to close the clutch e, g and to engage a pinion n with an engine member o, the movement of the yoke x moves the contact u out of the path of the contact s and the motor a is not switched on. The lever p is then moved sufficiently to the left to open the clutch and to close the switch contacts s, u, v; the motor a sets the mass b in rotation, and on again closing the clutch the momentum of the mass b is transmitted to the engine through the clutch, the free-wheel, and the pinion n.