baber/WOPTO huggingface dataset:
Patent GB-1166573-A (GB)
Title: Oven
Inventor: VOEGTLIN RENE LOUIS
IPC: A21B1/24
Filed: 1968-03-11
Abstract: 1,166,573. Baking ovens. R. L. VOEGTLIN. 11 March, 1968 [17 March, 1967], No. 11767/68. Heading A2A. A baking or cooking oven 1, Figs. 1 and 2, comprises: an outer mantle 5 enclosing a lining of heat-insulating material 6, such as glass-wool, a plurality of assemblies 10 1  10 2  ..... of endless, steam-tight heating tubes 2, such as tubes 2 1 , 2 2 , 2 3  resting on a support 8, each partially filled with water and having a plurality of superposed loops, of which the lowermost loops 13 define the periphery of a hearth 4, and the other loops are aligned in one or more substantially horizontal levels to define, at each level, a baking or cooking chamber (three multi-deck chambers 3 1 , 3 2 , 3 3  being shown); a support disposed in each chamber for supporting products, such as bread and pastry, so that they receive heat emanating from said heating tubes 2 (three such supports 7 1 , 7 2 , 7 3 , e.g. in the form of shelves or ceramic tiles, being shown); a door for each chamber (three such doors 20 1 , 20 2  and 20 3  being shown); and a source of heat, such as the flame-tube 18 of a burner 17 burning gaseous, liquid or solid fuel, for heating the hearth and thus generating steam in said tubes. The assemblies of tubes may be maintained in position by braces 12 extending from front to rear of the oven. The lowermost loops 13 and the flame-tube 18 may be substantially circular (as shown in Fig. 2), square, rectangular or polygonal. The hearth 4 is preferably provided with a defector 14, Fig. 2, so that the side 15 of each loop 13 receives more heat than the side 16, thus causing the steam generated in the tubes 2 to circulate in the directions indicated by the arrows. The tubes in each assembly, Fig. 1, may be secured together, as by welding 9, and the tube-assemblies may be connected by joints 11, e.g. joints of the type shown at 11 1  and 11 2 . The burner 17 may be at the rear, front or side of the oven. Smoke may be vented from the hearth through a chimney 19. A thermostatic probe 11, Fig. 2, having electrical contacts may be provided on at least one of the tubes 2, the said electrical contacts being connected in series with a thermostat located within a baking or cooking chamber so that the burner 17 is extinguished when said tube, but not necessarily all the loops of the tubes defining said chamber, becomes overheated and liable to explode.
Patent GB-204656-A (GB)
Title: Improvements in and relating to ladders
IPC: E06C1/12
Filed: 1923-05-01
Abstract: 204,656. Walchli, G. H., and Kant- Break Ladder, Inc. May 1, 1923. Ladders with wire-braced sides have the wire 27 running in grooves on the fronts and 'backs of the side posts and secured in place by cross-bolts having a hook-shaped head 131 and a hook-shaped washer 32 on the other end. The steps may be formed tubular or are formed circular in halves longitudinally and are strengthened by centre bolts 20, central sleeves 19 being provided for additional strength.
Patent GB-911206-A (GB)
Title: Heterocyclic pigments derived from acridone
Inventor: WILKINSON DONALD GRAHAM
IPC: C08K5/46
Filed: 1960-04-04
Abstract: Polyvinyl chloride, polyethylene, polystyrene, polyesters and polyamides are coloured yellow to purple shades with pigments of the formula <FORM:0911206/IV(a)/1> where X and Y are atoms which complete a benzene ring or a system of fused 6- or 6- and 5-membered aromatic rings and where the rings or ring systems represented by X and Y may carry non-ionic substituents.ALSO:2-phenylamino-5-phenylmercapto-terephthalic acid is made by condensing aniline with 2-chloro-5-phenylmercapto-terephthalic acid prepared by diazotising and treating with cuprous chloride and HCl 2-amino-5-phenylmercaptoterephthalic acid which is obtained by reduction of 2-nitro-5-phenylmercapto-terephthalic acid made by condensing thiophenol with 2-chloro-5-nitro-terephthalic acid. Similarly prepared are 2-(41-chlorophenylamino)-5-phenylmercapto-, 2-phenylamino-5(41-chlorophenylmercapto)-, 2 - (41 - chlorophenylamino) -5-(411-chlorophenylmercapto)-, 2 - (41 - chlorophenyl-amino)-5-(411-acetylamino-phenylmercapto)-, 2-(21-chlorophenylamino) - 5 - (211 - chlorophenylmercapto)-, 2 - phenylamino-5-(21:41-dichlorophenylmercapto)-, 2-(41-bromophenylamino)-5-phenylmercapto-, 2-phenylamino-5-(21-chlorophenylmercapto)-, 2-(21-metnoxyphenylamino)-5-phenylmercapto-, 2-(41-chlorophenylamino) -5-(411-chloro-211-methylphenylmercapto)- and 2-b  - naphthylamino - 5 - phenylmercapto-terephthalic acids.  2 - phenylamino-5-(41-chlorophenylmercapto)-terephthalic acid is also made by reacting p-chlorothiophenol with dimethyl - 2:5 - dibromoterephthalate aniline or by reacting aniline with 2 - bromo - 5 - (41 - chlorophenylmercapto)-terephthalic acid obtained by hydrolysis from 2 - bromo - 5 - (41 - chlorophenylmercapto)-terephthalic acid dimethyl ester made by condensing p-chlorothiophenol with dimethyl 2:5-dibromoterephthalate.ALSO:The invention comprises yellow to purple pigments of the formula:-  <FORM:0911206/IV (b)/1> where X and Y are atoms which complete a benzene ring or a system of fused 6- or 6- and 5-membered aromatic rings and where the rings or ring systems represented by X and Y may carry non-ionic substituents.  X and Y may complete naphthalene, pyrene or carbazole ring systems and a large number of substituents is specified.  The pigments are made by treating a compound of the formula:-  <FORM:0911206/IV (b)/2> or an ester thereof with a dehydrating or condensing agent.  When a substituent of X or Y is acylamino the pigment may be made by acylating the corresponding amino compound.  The pigments may be mixed with other thiachromono[2 : 3-6]-acridones or with lin-quinacridones or benzo bisthiachromones.  Examples are given.
Patent GB-1075907-A (GB)
Title: A method of and an apparatus for separating a constituent from a stream of media
IPC: H01G9/10
Filed: 1966-03-17
Abstract: 1,075,907. Centrifugal separators. SIEMENS-SCHUCKERTWERKE A.G. March 17, 1966 [March 20, 1965], No. 11845/66. Heading B2P. In an apparatus for separating solid and/or liquid particles from gases, particle-laden gas 4 fed to a vortex chamber 1 through an inlet 2 is imparted a rotary flow 5 by means of vanes 3. A continuous flow of gaseous auxiliary medium as represented by the dotted lines 10 is set up in the chamber in such manner that a helical flow 8 of the auxiliary medium having an axial component and an angular component of velocity in the same directions as those of the rotary flow 5 extends in a first annular region of the chamber surrounding the rotary flow and that a potential flow 9 of the auxiliary medium having an axial component of velocity oppositely directed to that of the rotary flow and an angular component of velocity in the same direction as that of the rotary flow extends in a second annular region of the chamber surrounding the first region. The auxiliary medium passes from the first region to the second region at their ends adjacent an outlet 6 for the purified gas 7 and from the second to the first region at their ends adjacent the inlet 2. The particles are separated radially of the rotary flow and are discharged with a branch of the potential flow in the direction of arrows 11. The auxiliary medium may be sucked from the first region of the chamber through a conduit 15 by a fan 16 and returned to the second region via a passage 17 which may be provided with guide means or nozzles, or which may be of nozzlelike construction, for imparting a preliminary spin to the auxiliary medium. In another embodiment, Fig. 3 (not shown) the auxiliary medium is removed through a duct (18) adjacent the inlet 2 and returned via a duct (19) which has an annularly disposed extension around the inlet (2). In a further modification, Fig. 4 (not shown), a portion only of the auxiliary medium is removed through an annular opening (18) in the wall of the chamber adjacent the inlet (2) and is reintroduced in the upper region of the chamber through obliquely tangential nozzles (20).
Patent GB-847433-A (GB)
Title: Improvements in lamp shades
IPC: F21V1/06
Filed: 1958-04-16
Abstract: 847,433. Lamp shades. COLLINS, W. Feb. 27, 1959 [April 16, 1958], No. 12084/58. Class 75(2). A wire framework for a lampshade has two or more rings 1, 3 joined together in spaced relationship by a plurality of connecting rods 2 extending from ring to ring, one or each of the rings is composed of sections 9 separate from the connecting rods and joined together end to end to form a complete ring and also joined to the connecting rods by means of tubular sockets 7 connected fixedly on those ends of the connecting rods at which there is a junction. The connecting rods may be hinged to the ring 3. The ends 8 of the sections 9 are reduced in diameter to fit in the sockets 7. The ring 3 supports legs 4 which are hinged between their ends at 5 and carry a ring 6 for a lamp holder.
Patent GB-1378212-A (GB)
Title: Denture bases
IPC: A61C13/01
Filed: 1972-03-15
Abstract: 1378212 Polymeric denture bases AMALGAMATED DENTAL CO Ltd 9 March 1973 [15 March 1972] 12135/72 Heading C3P A denture base is formed from a copolymer of an ester of trialkyl tin and an ethylenically unsaturated carboxylic acid and one or more other ethylenically unsaturated comonomers. The acid is preferably acrylic or methacrylic acid thus giving an ester of the formula in which R is a C 1-6  alkyl group and R<SP>1</SP> is H or -CH 3 . Examples of the monomer are tributyl tin methacrylate and trimethyl tin methacrylate. Two of the tin monomers may be present, one of which is trimethyl tin methacrylate. The comonomer may be a C 1-6  alkyl methacrylate or acrylate or a C 8-20  alkyl acrylate or methacrylate or a mixture of these. A polyethylenically unsaturated cross-linking monomer may also be present, such as a diacrylate or dimethacrylate of a dihydric alcohol. The denture base is formed by mixing the copolymer with one or more other ethylenic monomers into a dough, placing this in a mould or dental flask, and curing. The invention also comprises a two part pack one of which contains a finely divided tin containing copolymer of a tin compound as defined above together with one or more other ethylenically unsaturated monomers, and the other pack contains one or more liquid ethylenically unsaturated monomers. In the example methylmethacrylate, tributyl tin methacrylate and trimethyl tin methacrylate are copolymerized to form a finely divided copolymer. This is then mixed with a liquid mixture of lauryl methacrylate, methyl methacrylate and ethylene glycol dimethacrylate and the mixture cured in a dental mould.
Patent GB-641635-A (GB)
Title: Improvements in or relating to gaseous fluid compressors
IPC: F04D29/46
Filed: 1948-05-04
Abstract: 641,635. Centrifugal pumps. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. May 4, 1948, No. 12184. Convention date, May 5, 1947. [Class 110(i)] Guide vanes 3, Fig. 5, in the diffuser of a centrifugal pump are pivoted at 5 to a fixed ring 4 and eccentrically at 6 to discs 8 which can turn in a ring 10. Movement of the ring 10 alters the angular setting of the vanes. The ring 10 may be moved by a speed-controlling or a speedresponsive device and by the operating means for valves in the pump inlet. The pump may be driven through a two-speed gear 21 hydraulically operated as described in French Specification 534,041 by pressure fluid admitted at either 20 or 22. This fluid is simultaneously admitted to the corresponding end of a cylinder 15 and the piston 14 moves the ring 10. In Fig. 6 movement of the ring 10 is under the combined controls of a speed-responsive device 25 and manually-operated mechanism for controlling pump inlet valves 56. The governor 25 acts on one end of a lever 33, the other end of which is linked to the ring 10. The pivot of the lever 33 is moved in a slot 64 by means of a cam 59 on a shaft 46 in the valve-operating mechanism.
Patent GB-1128190-A (GB)
Title: Water soluble gelatin and sugar product
IPC: A23L29/281
Filed: 1967-03-16
Abstract: 1,128,190. Jelly AMERICAN MACHINE & FOUNDRY CO. 16 March, 1967 [4 April, 1966], No. 12299/67. Heading A2B. A dried sugar-gelatin composition which is readily soluble in cold water is prepared by dissolving the sugar and gelatin in water, the sugar: gelatin ratio being at least 7: 1, preferably 8:1 to to 10:1, foaming the solution to a density of, about 0.1- 0.6 gm/cc, casting the foam into a continuous layer not exceeding about 150 mils thicks, the surface on to which it is cast being at not more than about 140‹F., drying the layer at not above I80‹F. for not more than about 5 minutes by the application of heat under the surface on which it is cast, whilst passing heated air over and in contact with the layer, and doctoring the dried product from the surface at not above about 130‹F. Conveniently the layer is cast on to the surface of an impervious metal belt. The term "about" as employed herein means Œ10%.
Patent GB-595285-A (GB)
Title: Ultra high frequency communication systems
IPC: H03K7/00
Filed: 1945-05-16
Abstract: 595,285. Pulse modulation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 16, 1945, No. 12365. Convention date, April 22, 1942. [Class 40 (v)] A pulse radio communication system utilizes a blocking oscillator as the carrier source, the timing of the pulses being varied by applying the signal voltage to vary the resistance of a leak path for the grid condenser. The oscillator may comprise a push-pull valve pair 1, 2 with resonant Lines as their anode, grid and cathode circuits. The grid condenser 12 is connected between the tuning-sliders 8, 11 of the grid and cathode circuits and the leak path comprises a triode valve 13 with its anode connected to the positive terminal B + of the high-tension source. The signal is applied to the grid of the valve 13 through a transformer 14. With no signal, the oscillator gives regular pulses of carrier energy, the spacing of which is determined by the leak path for the condenser 12. As the resistance of this path is varied by the signal, the spacing of the carrier pulses is correspondingly varied. The anode potential of the oscillator may be of high value, and the power developed during pulse emission may be much greater than the continuous power rating of the valves. The receiver may be provided with automatic gain control which may bias off all but the pulse peaks so as to eliminate noise.
Patent GB-113233-A (GB)
Title: Improvements in Presses for Moulding Plastic Substances.
IPC: B28B3/02
Filed: 1917-08-31
Abstract: 113,233. Taylor, Tunnicliff & Co., and Cooper, P. Aug. 31, 1917 Stationary-mould machines; punching and perforating machines; pressing plungers and dies.- In moulding plastic substances, particularly pierced articles such as porcelain bead insulators adapted to be strung upon a bare wire or conductor, a slab or blank of plastic material is placed upon the bottom die-member 16 and the plunger 4 is lowered. The plastic material is forced into the dies 5 until the die plate 1 meets the bottom plate 16. The plunger 4 continues its downward path and forces perforating pins 10 through the material, the die plate 1 and ejector sleeves 6 meanwhile remaining stationary. In lifting the plunger, the pins 10 are first withdrawn, the whole plunger and its attachments are then raised together until the stop-pins 13 meet the cross member 14, when the ejector sleeves will be held stationary while the die plate continues its upward motion, the moulded articles being thus ejected.
Patent GB-238314-A (GB)
Title: Improvements in making synthetic menthol
IPC: C07C35/12
Filed: 1924-05-21
Abstract: Menthol obtained by the catalytic hydrogenation of piperitone or menthone consists in cooling a mixture of a liquid and a solid isomer in certain proportions.  By agitating the hot product with hydrogen in the presence of a catalyst, the relative proportions are changed in the direction of the formation of more of the component which is solid on cooling.  Alternatively the liquid isomer alone may be treated, when a certain amount is transformed into the solid isomer. A further modification consists in adding the liquid isomer to a batch of the parent material and hydrogenating the mixture; repetition of this process leads to the conversion of most of the starting material into the solid menthol.  Catalysts mentioned are nickel, cobalt, and a mixture of nickel and copper.  Examples are given of the hydrogenation of piperitone using a nickel catalyst and of the transformation of the liquid into the solid product in the presence of the same catalyst.ALSO:Menthol obtained by the catalytic hydrogenation of piperitone or menthone consists on cooling of a mixture of a liquid and a solid isomer in certain proportions.  By agitating the hot product with hydrogen in the presence of a catalyst, the relative proportions are changed in the direction of the formation of more of the component which is solid on cooling. Alternatively, the liquid isomer alone may be treated, when a certain amount is transformed into the solid isomer.  A further modification consists in adding the liquid isomer to a batch of the parent material and hydrogenating the mixture; repetition of this process leads to the conversion of most of the starting material into the solid menthol.  Catalysts mentioned are nickel, cobalt, and a mixture of nickel and copper.  Examples are given to the hydrogenation of piperitone using a nickel catalyst and of the transformation of the liquid into the solid product in the presence of the same catalyst.
Patent GB-143846-A (GB)
Title: Improvements in or relating to fertilizer driers
IPC: F26B11/16
Filed: 1920-05-06
Abstract: 143,846. Hamler, J. P., (Assignee of Hamler, P. J.). May 28, 1919, [Convention date]. Drums and like small vessels; agitators other than conveyers.-Relates to fertilizer driers of the type comprising inner and outer drums, the inner drum which forms the drying chamber being formed of corrugated sheet metal. The invention consists in securing the inner drum to the outer drum at the ends only and within the space between the drums. As shown, the outer drum 1 is secured to the inner drum 2 by rings 6, the ends of the drums being closed with heads 8, 9, to which are secured the journal-boxes 10 which support the shaft. The shaft carries agitating arms 15 having scoops 16, the outer edges of the scoops being shaped to conform with the corrugations of the inner drum. The drier is provided with a feed-hopper 17 at one end and a discharge opening 18 closed by a door 20 at the other end. A chamber 19 having a perforated diaphragm 26 and fitted to the discharge of the apparatus, is connected with an exhaust fan for drawing off volatile products from the inner drum. The apparatus is heated by steam passed to the space between the drums through pipes 4 and exhausted therefrom through pipes 5.
Patent GB-423583-A (GB)
Title: Improvements in television relaxation oscillation generator systems
IPC: H03K4/86
Filed: 1933-05-01
Abstract: 423,583. Valve generating circuits; discharge apparatus. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, and SCHLESINGER, K., 39, Friedrichstrasse, Friedrichshagen, both in Berlin. May 1, 1933, No. 12576. Convention date, May 2, 1932. [Classes 39 (i) and 40 (v)] In a relaxation oscillation-generator for television purposes employing a grid-controlled discharge device 1 for discharging the condenser 5, variation in the extinction potential is prevented by the provision in the grid circuit of means which prevent grid current from flowing. In the form shown, in which the frequency of the relaxation oscillations is determined either by a synchronizing potential 9 injected into the grid circuit or by the circuit constants if the synchronizing potential fails, resistances 10 are provided to prevent flow of grid current. To determine the frequency of oscillation if the synchronizing - potential fails, the grid is connected to a condenser 12 which with the main condenser 5 forms a potential-divider across the supply 6, 7. A bias battery 8 in series with a resistance 10 is connected across this condenser 12. The Specification as open to inspection under Sect. 91 comprises also a description of the construction of a discharge device. The discharge device has a cathode 2, Fig. 3 (Cancelled) surrounded by a grid cylinder 3 having a tubular projection 5 through which the electrons pass out. The anode is in the form of a ring 4 which surrounds the projection 5. Constructional, details and dimensions are given. The filling may be argon, nitrogen or mercury at a pressure between 0À1 and 2 mm. The cathode has a basic layer composed of alkaline-earth metal oxide, e.g. barium oxide, which is then coated with an alkaline-earth metal such as barium, which may be applied by atomization. This subject-matter does not appear in the Specification as accepted.
Patent GB-492977-A (GB)
Title: A new or improved cartridge for firing projectiles from toy firearms
IPC: F42B8/06
Filed: 1937-05-04
Abstract: 492,977. Cartridges for toy firearms. FREEMAN, C. T. May 4, 1937, No. 12666. [Class 9 (i)] A cartridge for firing projectiles from toy firearms comprises a body-part 1 with a bore 2 to receive the projectile, and a channel 4 communicating with a chamber 3 in which one or more caps are placed. A member 5 is coupled to the part 1 by screw threads or by a bayonet-joint to close the chamber 3, the part 5 carrying a firing pin 8 having a head 10 and a deflector 12. The cartridge is placed in the toy firearm and fired by the usual striker 14, the effect of firing being to compress the air behind the projectile in the bore 2 and so expel the projectile.
Patent GB-985096-A (GB)
Title: Printing plate holder
Inventor: MANGUS GEORGE
IPC: B41D5/00
Filed: 1961-06-22
Abstract: 985,096. Mounting printing plates. KNIGHT NEWSPAPERS Inc. June 22, 1961, No. 12792/63. Divided out of 985,095. Heading B6C. The subject-matter of the Specification is identical with that described in Specification 985,095, but the claims are concerned with the printing plate holder.
Patent GB-332614-A (GB)
Title: Improvements in or relating to tubular swivel connections for electric light and similar fittings
IPC: F21V21/26
Filed: 1929-04-25
Abstract: 332,614. Dugdill, H. F., and Dugdill, D. April 25, 1929. Rod connections; screwed spigot-and-socket joints.-Relative rotation of two tubular members a, b having interengaging screw-threads a<1>, b<1> is limited by spaced collars a<2>, a<3> which are fixed on the part a and against which the ends of the part b may abut. The members are maintained in any relative position without additional clamping means by a spring c, Fig. 2, which is interposed between the part b and one of the said collars and serves to increase the axial pressure and consequently the friction therebetween. The spring c may be enclosed in a housing a<5> formed integral with one of the collars a<2>, a<3> as shown in Fig. 4. The invention is particularly applicable to electric light &c. fittings. Specifications 199,895 and 202,051 are referred to.