baber/WOPTO huggingface dataset:
Patent GB-819484-A (GB)
Title: Method and system for monitoring the color of a fluid bath
IPC: G01J3/46
Filed: 1956-03-07
Abstract: 819,484. Photo-electric testing. PROCTOR & SCHWARTZ Inc. March 7, 1956 [March 9, 1955], No. 7138/56. Class 40 (3). [Also in Group XX] The colour of a fluid bath, such as a dye, is monitored By passing two light beams, one through a colour standard and the other through a continuously changing sample from the fluid bath, selectively colouring both light beams before passing them through the sample and the standard and continuously comparing the intensity of the two beams. As shown in Fig. 1 light from a source 10 is collimated by a lens 11, plane polarized by an element 14 and divided by a Wollaston prism 15 into beams A and B plane polarized at right angles the beam A being directed by a lens 17 to pass a cell 19 through which liquid from the bath is continuously circulated and the beam B being directed by a lens 18 through an adjustable colour standard. The emergent beams are directed by mirrors 32, 33 on to a circular tube 34 having at its bottom a ground-glass disc from which light passes to a photo-cell 35. A plane polarizer 16 is rapidly rotated in the two beams A and B causing them to vary sinusoidally in intensity with a phase difference of 90 degrees so that if the two emergent beams are of equal intensity the illumination of the ground-glass screen will be constant, but any change in the balance between the emergent beams A and B will be indicated by the photo-cell 35. The balance is tested for different colours by means of a disc 13 rotatable to bring one of a number of colour filters into the beam from the lamp 10. The colour standard comprises three filters 25, 26, 27, Fig. 6, each consisting of a plane parallel plate formed of a wedge of clear glass connected to a wedge of coloured glass so that by adjusting the position of each plate in the beam B the absorption of each plate for its particular colour can be varied. The plates are carried in frames 22, 23, 24 each separately adjustable in the beam B by screw-threaded rods. The position of each filter plate may be indicated on an external scale to show the concentration of dye to which the filter corresponds. To compensate for variations in intensity across the beam B due to the wedge shape of the filters a fixed element 28 composed of coloured wedges 29, 3,0 31 arranged oppositely to the other wedges may be inserted in the beam.
Patent GB-554525-A (GB)
Title: Arrangement in automatic regulators operating with electrical comparison quantities
IPC: G05F1/32
Filed: 1942-05-27
Abstract: 554,525. Automatic control systems for variable conditions. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. May 27, 1942, No. 7170. Convention date, June 14, 1941. [Class 38 (iv)] Voltage; variables in general.-To overcome defects inherent in the action of a regulator operated by the difference between two electrical quantities representing respectively the normal and actual values of the quantity controlled, a change in the differential quantity is made to act upon the saturation of an inductance to produce a change in either or both of the electrical quantities. Thus a voltage regulating member r which is responsive to the difference between a constant direct current, through a saturable inductance coil 1, and a current, varying in accordance with the regulated voltage, applied at terminals 4 is arranged so that the differential current passes through a coil 6 varying the saturation of the inductance coil 1, for example. A resulting increase of the current representing the normal value of the regulated quantity increases the differential current and may by suitable design grow more rapidly than the differential current. The invention enables the power consumption in respect of the electrical quantity representing the normal value to be minimized and the drop of the regulator, or the deviation of the controlled quantity requisite for regulation to occur, to be reduced.
Patent GB-687421-A (GB)
Title: Improvements in or relating to operation of jet engines
IPC: F02C7/262
Filed: 1950-03-22
Abstract: 687,421. Electric control systems. STANDARD OIL DEVELOPMENT CO. March 22, 1950 [June 16, 1949], No. 7187/50. Class 40 (i). The invention relates to means for anticipating and preventing flame-blow-out in jet engines, and is based on the fact that at flame-blow-out the ratio P/F of the absolute pressure P in the combustor to the air inflow weight F is linearly related to the temperature difference At between the air intake and that of the combustion gases as shown in Fig. 6 for two fuels A, B when used in a particular engine. The engine operator has a flame-blow-out indicator, Fig. 9, comprising two pointers 69, 74 of instruments which measure respectively P/F and #t. The two pointers move about centre O, 0', respectively, over a dial having curves such as 81, 82 graduated thereon corresponding to flame-blow-out conditions and determined empirically for the fuels A, B in question. Since the region of sustained flame lies to the right of the fuel curves, the engine operator has merely to ensure that the intersecting point of the two pointers 69, 74 always lies to the right of the appropriate fuel curve. Preferably the air weight inflow is measured by a thermal meter 80, Fig. 7, in which an electric heater H is supplied by a wattmeter 66 and is adjusted automatically to maintain a predetermined temperature difference between resistors T3, T4 located in the air inffow on opposite sides of the heater. The absolute pressure P is preferably measured by a bellows-type gauge 90. The pointers 64, 65, of the pressure and air flow weight meters control through variable resistors 63, 62 the current flow in the coils 67, 68 of a ratio meter the pointer 69 of which indicates the ratio P/F. A sensitivity adjustment, Fig. 8 (not shown), may be provided for the ratio meters. The temperature difference #t is preferably measured e.g. by thermocouples T<SP>1</SP>, T<SP>2</SP> arranged in series in a meter circuit 72, which if necessary through an amplifier, actuates the pointer 74. Automatic means may be provided for sustaining the flame e.g. with a fixed weight airflow and combustor pressure, the fuel supply may be controlled to raise #t so as to keep away from incipient blow-out regions of operation.
Patent GB-217633-A (GB)
Title: Process and composition of matter for colouring mortars and concretes
IPC: C04B40/00
Filed: 1923-03-13
Abstract: 217,633. Marks, E. C. R., (Master Builders' Co.). March 13, 1923. Concretes and mortars; stone, colouring.-The colouring of concretes, mortars, or by the addition of a pigment or of a dyed material such as kieselguhr is improved by grinding the colouring agent in calcium chloride solution to produce a paste, which is mixed with the water used for gauging the concrete or mortar.
Patent GB-271973-A (GB)
Title: Improvements in or relating to protection devices for electric apparatus
IPC: H01H37/00
Filed: 1926-03-16
Abstract: 271,973. Siemens Bros. & Co., Ltd., Petithory, E. A., and Garrod, E. R. March 16, 1926. Thermal switches for protecting dynamos &c. against short heavy or long light overloads comprise a bellows-type expansion chamber 9 provided with an extension 17 surrounded by a heating coil 18, the chambers 19, 17 being associated with heat absorbing masses of metal 13, 16 to imitate the iron masses associated with the conductors of the dynamo. The mass 13 takes the form of an aluminium cylinder surrounding the chamber 9, the mass 16, also of aluminium, has an internal channel 19 connecting the chamber 9 with the coppertube extension 17. Expansible fluid such as ether or methylated spirit fills the chambers 9, 19, 17 and when heated presses upwards the depending bellows 10 thereby operating a quick-action switch of the kind described in Specification 253,253. The heating coil 18 is provided with a movable terminal 24 so that a greater or lesser part of it may. be included in circuit.
Patent GB-671748-A (GB)
Title: Hub motor with coupling
IPC: B62M7/12
Filed: 1950-03-23
Abstract: 671,748. Motor wheels. VETH, D. G. March 23, 1950 [March 23, 1949], No. 7327/50. Class 79(iii) In a hub-motor having the motor mounted on a stationary axle member and driving the hub by toothed gearing and a coupling, both located within the hub, the coupling is one that can be put in and out of gear positively and is combined with a slip coupling, which slips under excessive load. As shown, the motor 2 is mounted on a stationary axle member 1, the crankshaft 3 being journalled therein and carrying a flywheel magneto 9 at its other end. The crankshaft is formed with pinion teeth 19 which drive a gear 18 mounted on a pin 17 carried by the stationary member 1. Integral with the gear 18 is a pinion 20 which drives an internal annular gear 21 carried by the flanged disc 24 rotatably mounted by ball bearing 22 on the stationary member 1. Drive is transmitted from the disc 24 to. the hub members 13, 14 and spokes 15 by a spring loaded plunger 26 which can engage one of the radial holes 25 in the disc 24. The plunger may be withdrawn by the knurled knob 29 and held withdrawn by rotating it so that the pin 30 leaves its slot 31. The ring gear 21 is rotatably mounted within the flanged disc 24 but is frictionally held by an annular spring 35, whose ends are anchored in a recess 37 in the flange of disc 14. whereby drive is transmitted under normal load but slips under excessive load. The spring 35 may be replaced by or combined with friction material such as leather, cork or asbestos composition. Specification 144,008, [CLass 79(iii)]. is referred to.
Patent GB-577836-A (GB)
Title: Improvements in and relating to relief valves
IPC: F16K17/04
Filed: 1943-05-10
Abstract: 577,836. Relief valves, ERNST, W. May 10, 1943, No. 7367. Addition to 563,672. [Class 135] The opposed pressure area of the. valve member of the parent Specification is disposed at the opposite end of the valve member to that of the main area, and these areas are shut off from each other except when the valve member moves to the open position. As shown in Fig. 2, a piston valve member 26 controlling an outlet port 27 is actuated by inlet pressure admitted through a pipe 7 acting on the end of the valve member against the action of a spring 30. The spring is arranged between a plate 28 mounted on the valve member and a plate 31 carried by an adjusting- screw 32. The spring chamber 29 is connected by a pipe 35 with the pipe 12 between the outlet port 27 and an adjustable choke 14. In Fig. 4, the valve member comprises a sleeve 52 secured to a bolt 51 by a nut 54. The bolt has a passage 70 leading to the inlet so that inlet pressure acts differentially on the valve member. In a modification of Fig. 2, the pipe 35 is replaced by a passage in the valve casing, and in a modification of Fig. 4, the sleeve is formed integrally with the valve spindle. In both these modifications, the variable choke is replaced by a fixed choke comprising a bored plug formed with an hexagonal socket, whereby it may be screwed into the outlet port, and the loading-spring is housed in a cap adjustably screwed into the valve casing.
Patent GB-1003854-A (GB)
Title: Mechanism for automatically setting and releasing automatic couplings for railway vehicles
IPC: B61G7/00
Filed: 1964-02-21
Abstract: 1,003,854. Automatically operating railway vehicle couplings. HOUILLENES DU BASSIN DE LORRAINE. Feb. 21, 1964 [March 12, 1963], No. 7457/64. Heading B7T. Geneva wheels 3, 3a, Fig. 2, step rotated by pawls at the track side operate mechanisms 6, 6a which actuate Bowden type cables 8 connected to the locks of the automatic couplings. One mechanism, Fig. 4, comprises cams 10, 11 on the shaft 4, the cam 10 coacting with a slide 14 urged thereagainst by a spring 15 so that rotation of the cam moves the slide 14 under control of a spring 16 and tensions or releases the cable 8 attached at its other end to the coupler lock. When the couplings are under tension and their locks held against operation, the spring 16 stores the operational command until the couplings are no longer under tension and then operates the lock. The wheels 3, 3a are step rotated a full quarter of a revolution by the track side pawls engaging the wheels and by the spring 13 coacting with a cam 11, which cam and spring self actuates and stabilizes the mechanism in each of its halted positions. In Fig. 9, the mechanism is simplified and comprises a cam acting between two slides 22, 23. ' In Fig. 10 the spring 24 is compressed, the cable 8 is slack, and the lock released. If, however, the lock is jamme d in the operative position, then further rotation of the wheel 3 and the cam 21 presents the cam in the Fig. 12 position, the slider 23 is retained as shown by the cable 8 held by the jammed lock and the energy in the spring 24 is stored so that the lock may be released when it becomes unjammed. The spring 24 in this embodiment returns the wheel and the slides and protects the cable from excessive operating force if the lock is jammed. Figs. 13-15 (not shown) illustrate a practical arrangement of this mechanism. In Figs. 16, 17, the Geneva wheel is replaced by two arms 38, 39 located at different levels and operated by trackside pawls 38a, 39a. By this mechanism it is possible for wagons in either the locked or unlocked condition to be all converted into one or the other condition.
Patent GB-793166-A (GB)
Title: Improvements in and relating to an impulse counter
IPC: H04M15/10
Filed: 1956-03-12
Abstract: 793,166. Counting-apparatus. SODECO, SOC. DES COMPTEURS DE GENEVE. March 12, 1956 [March 15, 1955], No. 7613/56. Class 106 (1). In a counter driven by the engagement of the ends 15, 16 of a lever with opposite projections of a star wheel 9, a braking spring is provided to prevent rebound of the star wheel. The star wheel 9 which has ten projecticns is fast with a pinion 8 having twenty teeth. The pinion 8 and a pinion 5 formed on the units numeral drum 4 are freely rotatable on a shaft 1 and are both engaged by a pinion 6 on a movable shaft 7 carrying transfer pinions for the higher orders. The actuating lever is rocked on receipt of an electrical impulse by an electro-magnet 10, whereupon the star wheel is partially advanced by the end 15, and then restored by a spring 14 to enable the end 16 to complete the step of movement. In one arrangement, the braking spring is in the form of a strip 21 which engages the teeth of the pinion 8 whereas in another arrangement, a spring washer is interposed between the pinions 8 and 5.
Patent GB-131095-A (GB)
Title: Improvements in Kilns for the Incineration of Earth Matters and Dolomites Limes and Cements.
Inventor: HODSON THOMAS
IPC: F27B1/00
Filed: 1918-05-07
Abstract: 131,095. Hodson, T. May 7, 1918. Shaft-kilns.-Kilns for the incineration of earthmatters, dolomites, limes, cements, &c., of thekind provided with furnaces in the outside walls, are formed with one or more incinerating- chambers B', having the smallest cross-sectional area above the heat flues F of the furnaces G, the cross-sectional area being gradually enlarged upwards. The gases escape by a flue D on either side of which charging doors are arranged. The flues F are formed as shown with two or more sharp turns or contortions. The furnaces are fed with fuel from hoppers H.
Patent GB-566244-A (GB)
Title: Improvements in or relating to holders for electric light bulbs
IPC: F21V29/00
Filed: 1943-05-13
Abstract: 566,244. Lamp holders. RUSHTON, K. F. May 13, 1943, No. 7624. [Class 75 (ii)] [Also in Group XXXVI] A lamp-holder 1 is fitted in a tube 7 that passes through a container 8 for cooling liquid such as oil, and is screwed in the container by welding or by nuts 11 screwing on the tube and provided with packing washers 10. Within the tube is a conductor 17 carried in insulating blocks 18, 19 through which it may slide under the influence of a spring 20. For a doublepole lamp two conductors are used. The lamp can be suspended in a vertical position by means of a ring 16 fitted into a cap 13, or this fitting can be replaced by a bracket for horizontal or oblique mounting. To provide for mounting in different positions, two filling openings 24, 28 are pro. vided having interchangeable stoppers or caps 25, 29, one of them vented. The upper end of the holder may be formed as a coupling to engage a lamp.socket. The shape of the container 8 may be varied and it may serve as a reflector for the lamp. or a shade or reflector may be attached by means of the lock-nut 12.
Patent GB-1535662-A (GB)
Title: Capacitors
IPC: H01G4/255
Filed: 1977-02-23
Abstract: 1535662 Capacitors VITRAMON Inc 23 Feb 1977 [18 Oct 1976] 07654/77 Heading H1M An intermediate in the manufacture of a multi-layer ceramic capacitor comprises a ceramic body having two major surfaces, two end surfaces and two side surfaces, at least two electrodes of a first polarity embedded therein extending parallel to the major surfaces to a first end surface which is provided with a conductive contact coating, at least one further conductive layer also parallel to the major surfaces and extending to a side surface and no electrode which in the finished capacitor will be of said first polarity extending to the second end surface. Such further layers are rendered capacitively active by connecting them to a second terminal of the capacitor, e.g. a contact coating, on the second end surface and by selecting the said further layers which are interconnected the capacitance of the assembly may be incrementally increased. The interconnection may comprise conductive coatings on the capacitor surfaces, which may be interrupted to effect decrease in capacitance. More than one said further conductive layer may be present in the same plane, which layers may be of different sizes and may extend to either or both side surfaces.
Patent GB-739477-A (GB)
Title: Photographic silver halide films
IPC: G03C1/795
Filed: 1954-03-16
Abstract: 739,477. Heat-mouldable photographic silver halide film. DU PONT DE NEMOURS & CO., E. I. March 16, 1954 [June 16, 1953], No. 7665/54. Class 98 (2). Designed for production of an image or picture such as a relief map, wall plaque or lamp shade on an irregular surface by heatmoulding before or after exposure and processing, the film comprises a heat mouldable base sheet with at least one anchoring sublayer and then a layer of silver halide grains in a polyvinyl acetal made with both benzaldehyde and an aldehyde substituted with a free carboxylic or sulphonic acid group or a water-soluble salt of such. In example 1 a film base sheet of vinyl chloride/acetate copolymer is subbed with an ethanol-acetone solution containing polyvinyl benzaldehyde/sodium o-sulphobenzaldehyde acetal (prepared by methods corresponding to those of Specification 535,341 using the mixed aldehydes) together with vinyl chloride/acetate/alcohol terpolymer and boric acid, dried, overcoated with a ripened dispersion prepared as by precipitating silver bromide into an aqueous alcoholic solution of a similar polyvinyl benzaldehyde/sodium o - sulphobenzaldehyde acetal, dried, and then provided with an antiabrasion layer also of this mixed acetal. After drying, the film, emulsion side down, is attracted to a plaster of paris contour mould of terrain in an open-sided vacuum box and subjected therein to a heat source as of 700‹ F. A negative image of objects on the terrain is then projected in register onto the cooled moulded film, and the latter processed using specified metal quinol and acid fixing solutions, to give a relief photograph free from blisters and cracking. In two further examples the same base sheet is subbed successively with the terpolymer of example 1 containing, or followed by treatment with, nitrocellulose solution, and then the polyvinyl benzaldehyde/sodium osulphobenzaldehyde acetal; after which the same ripened dispersion is applied and the resulting films are converted into moulded photographs similarly. Other heat-mouldable base sheets, including polystyrene, polyethylene, cellulose acetate or butyrate, and polyethylene terephthalate and other polyvinyl acetals for the light-sensitive layer, made as from benzaldehyde together with phthalaldehydic acid or propionaldehyde-#-sulphonic acid, or from the dimethyl, diethyl or ethylene glycol acetals of such aldehydes by acetal interchange, may be used. Specifications 600,039; 634,140, [Group IV (a)], and 641,368 also are referred to.
Patent GB-1184964-A (GB)
Title: Improvements in Tipplers for turning over Beer Kegs and like Containers
Inventor: RUDDICK MAURICE
IPC: B65G65/23
Filed: 1968-02-16
Abstract: 1,184,964. Tipping containers. BURNETT & ROLFE Ltd. 28 Jan., 1969 [16 Feb., 1968], No. 7792/68. Heading B8E. A tippler for inverting beer kegs or like containers comprises two platforms 16, 23 respectively welded to carriers 13, 22 pivoted on shaft 7. In the rest position, Fig. 2, a container 40 has been moved on to the platform 16 by a continuously moving chain conveyer 1. This trips a switch 36 simultaneously actuating pneumatic rams 29, 30 into the position shown in Fig. 5. The piston rods of the rams 29, 30 are then retracted to return the platforms 16, 23 to their initial, horizontal, positions. The carrier 13 returns empty and the carrier 23 returns with the container 40 which is thus turned through 180 degrees. This actuates a switch 39 indicating that the operation is complete. A further switch (41), Fig. 1 (not shown), prevents the rams 29, 30 from being again actuated until the container 40 is clear of the platform 2.
Patent GB-272624-A (GB)
Title: An improved coin-freed football game
IPC: G07F17/38
Filed: 1926-03-22
Abstract: 272,624. Jacobs, C. J. March 22, 1926. Games played with moving figures. - The ,pivoted leg of each figure of two teams of dummy figures g representing a football game extends into a recess e for receiving the ball f in the platform b representing the field, and carries a disc h located in front of an air pipe i. All the pipes i of one team lead to passages k in a fixed block j and are connected as required with a treadleoperated bellows d through a sliding block l and flexible pipe p. The block l, which slides on rods n, has a handle o for actuation by a player and a passage m to register with the passages k. The player connects the bellows to the pipe leading to leg in contact with the ball and depresses the treadle r. thereby moving the leg to propel the ball. A second player similarly controls the figures of the other team. The goalkeepers u are mounted on levers v provided with handles x for moving them across the goals y. In a modification, Fig. 4, the pipes i lead to passages 2 in a fixed block 1 communicating with a trunk tube 9 which is connected to the bellows by a fixed pipe 12. Each passage 2 has a spring-controlled piston valve 5 which is depressed by a sliding cam 13 to open the passage when required. The goalkeepers may be fixed to blocks slidably mounted in front of the goals. The backs are stored in a vertical or inclined tube and liberated one at a time by the movement of a plate which is operated by a coin-freed mechanism.
Patent GB-1061736-A (GB)
Title: Process for the polymerization of -a-monoolefins
IPC: C08F10/00
Filed: 1964-02-26
Abstract: Polymers of one or more alpha-olefines containing at least 3 carbon atoms, are made continuously by bulk polymerizing the monomers in liquid form under such conditions that the polymer formed is at least 90% crystalline and remains suspended in the liquid monomer in the form of discrete solid particles.  The preferred catalyst is such that would form, in the absence of chain transfer agents, from the alpha-olefines, at a rate in the range of 0.2 to 5 kg. per litre of reactor space per day, at a concentration of 1% by weight of the alpha-olefine feed, and at a temperature in the range of 70 DEG  to 85 DEG  C., polymer having an insolubility in boiling heptane of at least 90%, an inherent viscosity of at least 3 in tetralin at 145 DEG C., and a weight average molecular weight to number average molecular weight ratio of at least 9. The catalyst is preferably C2H5AlCl2 + TiCl3 and N,N-dimethyl formamide, or o-tolyl isocyanate, or tris - N,N - dimethyl - phosphoramide, or N,N-dimethylacetamide.  Hydrogen may be present as a chain terminator.  The exemplified alpha-olefine is propylene.