baber/WOPTO huggingface dataset:
Patent GB-1307304-A (GB)
Title: Radiography apparatus
IPC: G21K1/02
Filed: 1970-05-13
Abstract: 1307304 Electric correspondence control systems PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 13 May 1970 [16 May 1969] 23182/70 Heading G1N [Also in Division H5] In a X-ray tomographic apparatus (see Div. H5) a secondary X-ray absorbing grid is caused to follow the displacement of an X-ray tube by the circuit shown, in which the settings of potentiometers 12 and 13 are determined by the positions of the X-ray tube and the grid, respectively. A signal determined by the difference between the two settings is fed via the amplifier 11 to a motor 10 which adjusts the position of the grid to reduce the signal to zero. It is stated that switching resistor 17 into circuit permits a reduction of the amplitude of the grid displacement relative to that of the X-ray tube. Modified arrangements are referred to in which the X-ray tube displacement is sinusoidal with time, while the grid displacement exhibits either a triangular variation with time, or a time lag with respect to the X-ray tube motion, whereby to prevent the reproduction of grid shadows on the X-ray film at the extremities of the X-ray tube displacement.
Patent GB-1253535-A (GB)
Title: Improvements in or relating to means and methods for printing or decorating articles of ware
Inventor: JAMES DAVID RICHARD
IPC: B41F17/00
Filed: 1968-05-16
Abstract: 1,253,535. Printing apparatus. MURRAY CURVEX PRINTING Ltd. 14 May, 1969 [16 May, 1968], No. 23284/68. Heading B6C. Apparatus for decorating articles of ware such as pottery comprises an inking station A including a screen stencil 2, mounted in a pivoted frame 3, and a rigid backing support 8; a loading station B including a reciprocable table 4 to which is pivotally attached the frame 7 of an elastic printing membrane 1 and which carries a support 6 for the article 5 to be decorated; and a printing station C including a convex resilient pad 10, e.g. of gelatine. In use, the membrane is first positioned over the support 8, the screen frame 3 is dropped down and ink is applied in the desired design to the upper surface of the membrane; the frame 3 is then removed to one side and the membrane frame 7 turned over above the article 5 which has been positioned on the support B at station 6; next the table 4 is moved with the article 5 and the membrane above it to the station C, where the pad 10 is moved down in order to press the membrane against the article and transfer the pattern thereto, after which the pad 10 is withdrawn and the table 4 returned to station B where frame 7 can be turned over to the inking support 8. The printed surface of article 5 can then be dusted with a drying powder from container 13. The membrane may be in the form of a roller blind, Figs. 3 and 4 (not shown), or it may be mounted in a frame (41) with side rollers (42) movable along guide channels (43) between inking and printing stations, Fig. 5 (not shown). The apparatus may include a rotary indexing table on which an article is movable between the various stations.
Patent GB-1326287-A (GB)
Title: Pistons for internal combustion engines
IPC: F02F3/00
Filed: 1971-04-19
Abstract: 1326287 Pistons ASSOCIATED ENG ITALY SpA 19 April 1971 [5 March 1970] 23287/71 Heading F2T A piston in which the gudgeon pin bosses 6 are formed on extensions 7 depending from the piston head 8, is dimensioned so that D/d is between 4À3 and 5, D/L is between 1À45 and 1À9 and D/l is between 3À5 and 6; D being the piston nominal diameter, d the diameter of the gudgeon pin 5, L the distance between the external faces of the bosses 6 and l the distance between the internal faces of the bosses.
Patent GB-365500-A (GB)
Title: Improvements in buoyancy tanks for lifeboats
IPC: B63C9/02
Filed: 1931-08-19
Abstract: 365,500. Life boats. MECHANS, Ltd. and MOYES, J. Y., Scotstoun Iron Works, Scotstoun, Glasgow. Aug. 19, 1931, No. 23306. [Class 113 (ii).] The buoyancy tanks in metal lifeboats particularly those occupying the lowest position are stiffened tc withstand the pressure due to the head of water on swamping, by corrugating the sides or ends or both. The tanks may also be stiffened by internal bulkheads c, as shown in the Figure, which are held in position by lugs D fixed to the sides, When the internal stiffeners are located at the ends of the tanks they may be attached thereto by clenching members.
Patent GB-903909-A (GB)
Title: Improvements in polycarbonate resins
Filed: 1958-08-21
Abstract: A polycarbonate based on a dihydric phenol free from aliphatic unsaturation is cross-linked by heating it to 200 DEG -600 DEG C. under oxidizing conditions.  Heating may be effected in an air circulating oven or in the presence of oxygen or an oxidizing agent. A very large number of dihydric phenols suitable for the manufacture of the polycarbonates are referred to and these may contain two aromatic nuclei linked by groups containing an alkylene, alkylidene, tertiary amino, ether, carbonyl, sulphide, sulphoxide, sulphone or a silicone-containing linkage.  In examples polycarbonates derived by reacting the following compounds were cross-linked (1) Bisphenol A, and phosgene; (2) Bisphenol A, phenol and phosgene; (3) p:p1-Dihydroxydiphenyl ether and phosgene; (4) 2,2-Bis-(p-hydroxyphenyl)-butane and phosgene; (5) Bisphenol A, 2,2-bis-(3-methyl-4-hydroxyphenyl) propane and phosgene; (6) Bisphenol A, p,p1-dihydroxydiphenyl sulphone and phosgene; (7) Bisphenol A and diphenyl carbonate.  The polycarbonate of Example 1 was in the form of a film cast from chloroform solution.  That of Example 2 in the form of a coating on a copper wire made by dipping the wire in a solution of the polycarbonate in a mixture of chlorobenzene and cyclohexanone.  Specifications 772,627, 808,486, 835,464 and 883,619 are referred to.
Patent GB-261344-A (GB)
Title: Improvements in or relating to furnaces for the treatment of zinc ores
IPC: C22B19/14
Filed: 1926-09-22
Abstract: 261,344. Roitzheim, A., and Remy, W. Nov. 13,1925, [Convention date]. retort furnaces. - In a vertical zinc retort furnace the retorts are supported independently of one another and of the furnace walls, and their lower ends are sealed in sand, while their upper ends carry the top closure for the furnace. The plant is maintained in operation for long periods by filling defective retorts with sand or other inert material, the operation being continued until the number of retorts out of action is so great that it is no longer economical to run the plant. The setting shown comprises two rows of retorts one on each side of a structure D containing recuperators N<1>, N<2>, air supply passages J<1>, J<2>, gas flues F<1>, F<2> and ports G, and outlet flues L<1>, L<2>. The air from the passage J<1>, J<2> is supplied to hollow flue partitions p<1> which are so perforated that the air is supplied in stages to the gas admitted through the ports G. The retorts are built up of superposed sections, and the flue partitions rest on the projecting socket portions of the sections. The long side walls of the retorts are made of thinner material than the short end walls, and in each retort one or more stout partitions, perforated at the level of the condenser V, are provided. Metal downward extensions T from each retort compartment dip into sealing-troughs S. Instead of the partitioned retorts shown separate retorts connected together and feeding a common condenser may be used. Partitions of the kind described in Specification 9314/13, [Class 55 (i), Coking &c.]. may be used in the retorts.
Patent GB-827662-A (GB)
Title: A pressure responsive actuator
IPC: G05B1/00
Filed: 1956-07-30
Abstract: 827,662. Fluid-pressure servomotor-control systems. DREYER, ROSENKRANZ & DROOP A.G. July 30,1956 [Aug. 2, 1955], No. 23394/56. Class 135. Relates to a pressure-responsive actuator wherein a number of connected pressureresponsive diaphragms 13, 17, 20 combine to regulate an output pressure 32 fed by a compressed air source 34, the force of which pressure 32, acting upwards on the diaphragms in an outlet chamber 21, is equal to the algebraic sum of the forces of a number of input pressures 9, 16, 18, acting downwards on the respective diaphragms. In such an arrangement the corresponding change in output pressure 32 caused by a change in one of the input pressures is a function of the relative sizes of the diaphragms, such function, called the " action factor," being thus invariable for a given actuator. According to this invention the effective action factor is rendered adjustable by providing restrictors, one, 6, in the input pressure line 9, the other, 8, directly between input 9 and output 32, at least one, preferably 8, being adjustable. As shown, an initial input pressure 1 is relayed as an equal pressure to the input line 9 by a diaphragm 3, regulating compressed air from the supply 34. The other two input pressures 16, 18 are branched to a common input 18, one, 16, including a restrictor 14, the effect of which is to cause a temporary pressure difference between 16 and 18 when the common pressure 18 varies, such pressure difference, modified by the action factor, being temporarily reproduced in the final output pressure 32. Any such change in output pressure 32 is fed back through the restrictor 8 to the top input chamber 12 to change the diaphragm load and produce a further change in output pressure 32 whereby the effect of the action factor is modified. The three diaphragms 13, 17, 20 jointly regulate a sommunication 25 between the outlet chamber 21 and a chamber 22 fed by the compressed air source 34 through a restrictor 23. Two lower diaphragms 24, 26 jointly control a double valve 30, whereby increased pressure in the chamber 22 depresses the valve 30 to supply pressure 34 to a lower chamber 27, to output 32 and to chamber 21; whilst reduced pressure in the chamber 22 permits the valve part 30 to close and 29 to exhaust the chamber 27 through a vented inter-diaphragm chamber. With this arrangement and a suitable relation between the sizes of the diaphragms 13, 17, 20, the output pressure 32 can be made equal to the input 1, 9, and any change in the second and third common input pressure 18 is reproduced in the output 32 for a time determined by the restrictor 14, and in magnitude determined by the action factor as modified by the restrictor 8, which latter may be calibrated in action factors.
Patent GB-1312985-A (GB)
Title: Film review mechanism for self-threading motion picture projectors
IPC: G03B1/56
Filed: 1970-05-14
Abstract: 1312985 Cine projectors EASTMAN KODAK CO 14 May 1970 [15 May 1969] 23424/70 Heading G2E  A cartridge-loading cine projector of the type disclosed in Specification 1254705 and 1279728 including an automatic film threading device comprising an endless belt drive member 28 and a stripper finger 29 which are moved to engage the outer convalution of the film roll 22 under the control of a three-lobed cam 52, is provided with a manually controlled review mechanism by which the automatic re-wind mechanism is actuated until the required film section is reached for reprojection. Manual depression of review rewind button 188 releases the trigger 92 from a latch pin 147 on lever 137 which is then pivoted clock-wise by the clutch-adjusting slide 139 to which it is pivoted at 141. This movement opens gate 18 and places clutch units 149, 150 on the reel spindles 24, 25 in the re-wind mode. At the desired point on the film, review projection button 189 is depressed in order to depress spring-loaded slide 178 which operates to cause the slide 173 to disable stripper finger 29 and drive member 28, and to cause engagement of clutch on the control cam 52. The cam 52 then rotates through one cycle to terminate the partial re-wind and re-cock the reversing mechanism. Re-projection may then commence.
Patent GB-1091208-A (GB)
Title: Textured sheet material
IPC: C08L27/06
Filed: 1964-06-05
Abstract: <PICT:1091208/C3/1> A floor covering is made by subjecting a dry blend of cured rubber granules and thermoplastic resin particles to heat and pressure to form a sheet wherein the rubber granules are dispersed in a fused, thermoplastic matrix, and the rubber granules adjacent the surface project to provide an uneven surface effect. The rubber may be either natural or synthetic, and may be of cellular texture.  The rubber granules may be constituted as follows: .Chlorosulphonated polyethylene.100 .Styrene/butadiene copolymer (85%. .styrene).25 .Styrene/butadiene copolymer (23%. .styrene).50 .Hydrated silica.60 .Ground limestone.100 .Zinc oxide.5 .Barium cadmium stearate.2 .2,5-Bis-(tert. butyl peroxy)-2,5-. .dimethylhexane.4 .Polyethylene glycol (mol. wt. 4000).2  As shown, an asbestos base sheet 12 supports an adhesive white resin sheet 14 supporting an upper sheet consisting of a transparent thermoplastic resin 16 containing different coloured rubber granules 18 and 20.
Patent GB-1475911-A (GB)
Title: Cryo-probe
IPC: A61B18/02
Filed: 1974-05-24
Abstract: 1475911 Cryogenic probes DRAGERWERK AG 24 May 1974 [24 May 1973] 23478/74 Heading A5R A cryogenic probe comprises a shank 2 supporting an endoscope 8 displaceable along the shank and a coolable tip 5, the distal portion 4 of the shank being bent over relatively to the remainder. As shown in Fig. 1, the shank is mounted on a handle 3 and the tip 5 constitutes an evaporation chamber for a low-boiling point liquid which is conveyed to and from the tip by co-axial tubes 14, 15 surrounded by an evacuated sheath 17. The shank also contains a guide-tube 7 for insertion of the endoscope 8 and accommodates leads 18 leading to a thermocouple in the probe-tip and to a heating device for the tip. A supply duct 9 and a drainage duct 10, each having openings 11, are provided for circulating washing fluid around the tip, the ducts having a cross sectional shape of approximately a segment of a circle thereby giving an approximately circular overall cross-section to the shank and ducts together. Reference has been directed by the comptroller to Specification 1402140.
Patent GB-881619-A (GB)
Title: Improvements in or relating to a hose coupling member
IPC: F16L33/16
Filed: 1960-07-05
Abstract: 881,619. Hose coupling members. DUFFIELD, F. R. July 5, 1960 [July 17, 1959], No. 23545/60. Class 99(1). A hose coupling member for a hose having a reinforcement sandwiched between inner and outer flexible coverings comprises an insert 11, Fig. 1, having a first portion 25, a second portion 14 and a radial flange portion 13 which is formed to provide a seating 28 for a sealing member 29, and a spigot or socket connecting member 32. Gripping surfaces can be provided in the bore at the ferrule 23 and on the periphery of the second portion 14 which is tapered to a knife edge 20. The sealing member, e.g. an "O" ring, may be mounted, with or without an internal support 37, Fig. 5, between sloping or vertical shoulders formed in the insert and connecting members. The ferrule may be compressed by swaging or in another embodiment the ferrule is screw-threaded into the connecting member.
Patent GB-389812-A (GB)
Title: Imparting motion to liquids with special reference to plate and dish washing machines and the like
IPC: A47L15/12
Filed: 1931-08-21
Abstract: 389,812. Dish - washing machines. TETT, G. S., Mayfield Cottage, Southborough Road, Bickley, Kent, and CLEPHAN, H., Carslogie, Newmarket, Maritzberg, Natal, South Africa. Aug. 21, 1931, Nos. 23563/31 and 397/32. [Class 138 (i).] A machine for washing plates, dishes, and like articles comprises a casing 4 fitted for supporting the articles and provided with distributing pipes 3, 31, adapted to communicate, through a valve 11 and a pipe 2, with the bottom of a boiler 1 containing water. A pipe 5 with a restricted orifice leads to the casing from the top of the boiler. As the water is heated by means of a gas burner 9, the dishes are subjected to the action of steam, while at the same time the pressure on the boiler increases until it is sufficient to open the valve 11 whereupon the water is discharged over the dishes through openings in the pipes 3, 31. The pipe 31 is provided with hooks 33 for supporting cups and like vessels. The valve 11 is controlled by means shown in Figs. 5 and 7. The stem 12 is connected to a lever 13 which extends through a slot in a housing 15 carried by two levers 16, one on each side of the lever 13. The three levers have a common pivot 17. Normally, the lever 13 is located below a disc 18 on a spindle 19 which is adapted to be displaced axially from the position shown to a position in which the disc 18 is in a recess 20. This displacement is effected when the resistance of a spring 21 is overcome by the pressure in the boiler communicated through a pipe 25 to a diaphragm 22. The lever thus becomes unlatched, allowing the stem 12 to be raised to open the valve. The valve is held open by the pressure of the spring 21 holding the disc 18 against the side of the lever 13. In the event of failure of the valve to be opened as described above, the housing 15 itself is raised by the lever 13 when the pressure in the boiler reaches a predetermined amount. A tail-piece 13a acts through a rod connected to a valve 10, Fig. 1, whereby the supply of gas to the burner 9 is cut off when the valve 11 is opened. For the purpose of washing knives, an open-ended conduit 35 is provided which is connected to the casing through a branch pipe 34, and is closed at the top by a holder 36 formed with gaps to hold the knives vertically with the handles outside the holder.
Patent GB-321711-A (GB)
Title: Improvements in inductance coils for wireless signalling apparatus
IPC: H01F21/12
Filed: 1928-08-16
Abstract: 321,711. General Electric Co., Ltd., and Peters, W. H. Aug. 16, 1928. Inductances. -An inductance for short and long wave radio circuits comprises two coils wound on concentric formers provided with a switch, the coils being connected in parallel for short wave work and one of them being disconnected at one end and remaining in circuit alone for long wave work. The coils are wound with the turns reversed at the mid-points of each winding. A third coil can be arranged on one of the formers, or another former can be employed, the third coil functioning as an aerial coupling coil or reaction coil for both wavelength ranges. As shown, in one arrangement, Fig. 1<a>, one coil comprises reverse windings 3a, 3<b> and the other reverse winding portions 4<a>, 4<b> A third winding 5 is located on the former 1 and may have an intermediate tapping. A rotary notch is provided for connecting the open ends of the two coils. Fig. 6 shows the inductance 3, 4 employed in a tuned anode circuit with the inductance 5 functioning as a reaction coil.
Patent GB-730280-A (GB)
Title: Improvements relating to centrifugal pumps
IPC: F04D9/04
Filed: 1951-10-11
Abstract: 730,280. Centrifugal pumps. BERESFORD & SON, Ltd., J., and WOOD, K. P. Oct. 9, 1952 [Oct. 11, 1951], No. 23641/51. Class 110 (1). The suction side of a centrifugal pump is permanently connected to the delivery side of an electrically driven submersible priming pump, control means being provided to enable the priming pump to be brought into action preparatory to starting the centrifugal pump or in the event of the centrifugal pump losing its prime. The driving motors of the centrifugal pump 10 and the submersible priming pump 18 are controlled by automatic starters which are controlled by a single master control, the starter for the pump 10 being associated with a time-controlled relay. On actuation of the master control, the absence of pressure in the delivery line 20 of the pump 10 causes a pressure-sensitive switch 12 to start the priming pump 18, which discharges to the suction pipe 16 of the pump 10. The usual foot valve at the lower end of the,suction pipe 16 prevents the delivery of the pump 18 from returning to the bore hole 19. After an interval of time sufficient under normal conditions to ensure priming, the time-controlled relay starts the pump 10. When the pressure in the delivery line 20 has increased sufficiently, the pressure-sensitive switch 12 stops the pump 18. If the pump 10 subsequently loses its prime, the switch 12 brings' the pump 18 back into operation to restore the prime. In an alternative arrangement the starter of each pump is manually operated. According to the Provisional Specification; the submersible priming pump may be controlled by a vacuum switch. It may be driven by compressed air or through a flexible shaft.
Patent GB-224656-A (GB)
Title: Improved means in connection with the purifying, or softening, of water by means of base-exchanging compounds and the regeneration of such compounds when spent
IPC: C02F1/42
Filed: 1923-09-24
Abstract: 224,656. Hilditch, T. P., Wheaton, H. J., and Crossfield & Sons, Ltd., J. Sept. 24, 1923. Purifying liquids.-Apparatus for treating water with base-exchanging material comprises in addition to the treatment vessel, receptacles for regenerating-solution and for treated water, and the connections between these vessels are arranged so that a solution to regenerate the material can be passed downwards through the treatment vessel and treated or untreated water to eject the solution can also be passed downwards therethrough, or, alternatively, so that regenerating solution can be passed upwards and untreated water to eject the solution can be passed upwards, or treated water for the same purpose either upwards or downwards. Fig. 1 shows a tank 1 containing treating material 2 and having upper and lower distributors 3, 3<1>, with pipe connections and valves so that water to be treated from an inlet pipe 4, regenerating solution from a tank 10 or treated water for washing from a tank 13 can be supplied to either distributor and discharged to a waste outlet 17, or in the case of treated water to the tank 13, from the other. The connections to the distributors may enter through the sides instead of through the top and bottom as shown. Arrangements are described in which the tanks 10, 13 are at ground level, pumps being provided to raise the liquid therefrom as required. The distributors may be as described in Specification 212,453. Specification 203,497 also is referred to.
Patent GB-798789-A (GB)
Title: Improvements in and relating to deflector bodies for use with a ship's propeller
IPC: B63H25/38
Filed: 1956-08-02
Abstract: 798,789. Deflector cones for ships' propellers. COSTA, L., and MAIER, E. Aug. 2, 1956 [Aug. 13, 1955], No. 23939/56. Class 114. In a deflector cone for use behind a ship's propeller, the horizontal transverse axis is longer than the vertical axis. The cross section is summetrical relatively to both the axes and the boundary curve may be parabolic, Par, Fig. 2, hyperbolic, Hyp, elliptical El or circular, this last being used with a double-plate rudder providing a prismatic area a, b, c, d, Fig. 5, alongside which semi-circles are arranged.