baber/WOPTO huggingface dataset:
Patent GB-884840-A (GB)
Title: The production of photographic silver halide emulsions
IPC: G03C7/388
Filed: 1959-10-16
Abstract: 884,840. Photographic silver halide emulsions. AGFA A.G. Oct. 16, 1959 [Oct. 16, 1958], No. 35152/59. Class 98(2). Photographic emulsions are prepared by precipitating an aqueous gelatine silver halide dispersion by means of a water-soluble polystyrene sulphonic acid or salt thereof at a pH of 6 or less, separating the coagulum and redispersing it in an aqueous liquid. The polystyrene compound may first be added to the silver halide dispersion, or included in one of the solutions from which the dispersion is formed, and then the pH adjusted to 6 or below. Alternatively, the pH of the dispersion may be adjusted before the polystyrene compound is added. The flocculation is assisted by the presence of heavy metal salts such as the chlorides or bromides of cadmium or copper. The redispersion in water may be effected by adjusting the pH to between 6 and 10 and more gelatine or other colloid can be added to the resulting emulsion. The quantity of polystyrene compound used may be more than is necessary to effect precipitation so that it replaces some of the gelatin as the colloid binder. The usual adjuvants including colour couplers may be added to the emulsions before coating; or the colour coupler may be incorporated before precipitation with the polystyrene compound. Specifications 648,472 and 651,318 are referred to.
Patent GB-1067429-A (GB)
Title: Improvements in or relating to thread guides of quick traverse winding devices
IPC: B65H57/00
Filed: 1964-08-28
Abstract: 1,067,429. Winding bobbins. K. A. MULLERS. Aug. 28, 1964 [Sept. 11, 1963], No. 35354/64. Headings DID and D1J. To prevent, on thread breakage, the possibility of the thread end being wrapped around the spindle of bobbin 15, there is provided in front of the cross-winding device-for example a cam cylinder or split drum-a plate 17 having a thread guide aperture 18, a thread insertion slot 21, and catch plates 22, 23 having notches 24, 25 which catch hold of the broken thread ends and ensure that they are wound on to the centre of the bobbin.
Patent GB-1192806-A (GB)
Title: Methods of and Apparatus for Temperature Control
IPC: G05D23/22
Filed: 1967-08-02
Abstract: 1,192,806. Automatic temperature control systems. SERVOMEX CONTROLS Ltd. and A.J. BORER. June 24, 1968 [Aug. 2, 1967], No.35428/67. Heading G3R. In a method of controlling the temperature of a region, a mass of known thermal properties is controllably heated or cooled and the temperature difference between the mass and the region is determined which difference controls the temperature of the region which is independently heated or cooled to reduce the temperature difference towards zero. Alternatively the region may be initially brought to a determined temperature, and the mass heated or cooled until the determined temperature is reached. A circulatory air oven 1 has an air heater 2 connectable by a switch SW1a, b through lines 5, 6 to a controller (not shown) which maintains the oven 1 at a determined temperature. Mounted within the oven 1 is a lagged enclosure 9 with a heater 8 connectable over a switch SW2a, b to a differential amplifier A1 and a supply 11, and a mass 7, in the form of a one inch metal cube, attached to a junction 12 of a thermocouple, the other junction 13 of which is in the oven at a suitable point. The thermocouple is connectable through a switch SW3a, b to the input of amplifier A1 or a pre-amplifier A2 connected to an amplifier A3, the output of which is taken through switch SW1a. With the switches in the position shown, oven 1 may be brought and maintained to a determined temperature, say 200‹ C. and amplifier A1 will supply power to heater 8 to bring it to the temperature sensed by thermocouple element 13. With the switches reversed the mass may then be arranged to increase at a determined rate e.g. 4‹C. per minute, hence the oven temperature will follow this until another determined temperature e.g. 400‹ C. is reached. The switches will then be reverted to the position shown when the oven temperature will be maintained at 400‹ C. The oven is stated to have applications in gas chromatography, thermogravimetric analysis, and differential thermal analysis. The current supply and amplifiers may be replaced by any suitable arrangement. The mass may be a pure metal, an alloy, or a non-metallic substance in the solid liquid or gaseous state. The switches may be operated automatically.
Patent GB-470060-A (GB)
Title: Improvements in or relating to goniometer navigation aiding and like radio receiving installations
IPC: H03H7/42
Filed: 1936-12-30
Abstract: 470,060. Directive wireless signalling. SOC. FRANCAISE RADIO-ELECTRIQUE. Dec. 30, 1936, No. 35752. Convention date, Dec. 30, 1935. [Class 40 (v)] A direct-reading radiogoniometer comprises a vertical aerial A, Fig. 1, and two fixed frames C, C1, set at right-angles, the signal voltage from the latter being periodically reversed, or suppressed, by a pair of diodes V1, V2, shunted across the tuned circuits CV1, CV2. The diodes are energized in phase-quadrature at U, U1 from a two-phase alternator, and give the same effect as if the frames were rotating. After passing through amplifiers E1, E2, the frame voltages are combined with the pick-up from the aerial A in a common circuit CV3, which is coupled at G to further amplifiers feeding a phase indicator. The effect of the diodes is to damp the circuits CV1, CV2 alternately, and thus cut down or suppress the energy passed to the amplifiers through first one and then the other of the two coupling condensers C2. Fig. 2 shows an alternative method of coupling the aerials to the common combining circuit, and of reversing or suppressing the frame voltages so as to give the effect of constant rotation. A pair of diodes V1, V1 and V2, V2 are inserted in series with each of the two transformer secondaries, the two sections of which are wound in opposite directions. One or other of the diodes is put out of action as its cathode is thrown positive by the low-frequency voltage developed across the windings U1, U2. Both frames are coupled to the same tuned circuit CV3. In another modification, each of the transformers has five windings, one of these forming part of the common tuned circuit.
Patent GB-976931-A (GB)
Title: An arrangement for the cooling of rotor coils of electric machines
IPC: H02K3/22
Filed: 1960-10-18
Abstract: 976,931. Cooling dynamo-electric machines. ZAVODY V.I. LENINA PLZEN NARODNI PODNIK. Oct. 18, 1960 [Oct. 19, 1959], No. 35771/60. Heading H2A. In an alternator rotor having concentrically wound coils comprising hollow conductors 5, 6, 7 (Fig. 2) in the rotor slots and solid conductor cross-connectors 2, 8 with spacers between adjacent conductors, straight passages 10 are provided for the passage of cooling medium. These passages 10, which are parallel to the rotor axis, are formed by aligned apertures in the cross-connectors and spacers and are arranged to correspond with the hollow conductors 5, 6, 7 extending through the rotor slots. A passage 10 is also provided through the cross-connector 8 of the smallest coil which does not correspond with a hollow conductor but terminates in a slot 14 in the rotor core which communicates with the rotor stator air gap.
Patent GB-489701-A (GB)
Title: Method and device for recording and projecting images in colour kinematography
IPC: G03B33/08
Filed: 1936-12-31
Abstract: 489,701. Colour kinematography. DAXBEK, M. Dec. 31, 1936, No. 35856. Convention date, Jan. 29. Drawings to Specification. [Class 97 (i)] Two colour-record images are taken upon or projected from films within the normal depth of a standard image space by the adaptation of standard apparatus, the exposure aperture being reduced to half the usual dimensions by a mask, the film being fed at the rate of 24 standard image spaces, per sec., by a Maltese cross having eight slots, and a disc shutter being provided having two opaque portions and two colour-filter portions and rotated at the rate of one revolution per standard image space.
Patent GB-775267-A (GB)
Title: Improvements in or relating to the production of tags or terminals on articles comprising an electrically conductive pattern on an insulating support
Inventor: WILDY RONALD GORDON
IPC: H01R12/50
Filed: 1955-12-14
Abstract: 775,267. Terminal boards; two-part couplings. MULLARD RADIO VALVE CO., Ltd. Dec. 14, 1955, No. 35901/55. Class 38 (1). Terminal tags are provided on a panel carrying a printed circuit by arranging the circuit to form a plurality of tags adjacent an edge of the panel and then removing the edge portion to leave the tags projecting from the panel whereupon they may be used as soldering tags or folded over the edge of the panel to form plug contacts. One method of removing the edge portion of the panel is shown in Fig. 3. A V- shaped groove 1 is cut in the undersurface and the unwanted portion 2B snapped off and peeled away from the printed circuit to leave the tags 3 as shown in Fig. 5.
Patent GB-1253993-A (GB)
Title: Improvements in or relating to hydraulic pumps or motors
Inventor: THOMA OSWALD H
IPC: F01B13/06
Filed: 1968-07-27
Abstract: 1,253,993. Hydraulic reciprocating-piston pumps and motors. HYDRAULIC-DRIVE A.G. July 1, 1969 [July 27, 1968(2)], Nos. 35958/68 and 35960/68. Heading F1A. In a pump, or motor, a rotary member 20 has radial bosses 35 defining cylinders 36 for spring-loaded pistons 40, a slipper 45 for each piston having a socket engaging a part-spherical element 44 and abutting a cam ring 47, which is pivotally supported by a pin 48 so that its eccentricity can be varied by a rod 51. The working fluid e.g. oil, is supplied to and discharged from the cylinders through passages 29, 30 in a casing 10, passages 27, 28, 31, 32 in a fixed pintle 25 supporting the member 20, and passages 38 in said member. Lubrication of the slippers is effected by a proportion of the working fluid flowing through passages 60, 61 into distribution grooves in the outer faces adjacent the cam ring, Figs.3 and 4 (not shown). A power input, or output, shaft 13 carries a pulley 14 and is coupled to the member 20 by a flexible member 17. Shoulders 75, 76 prevent lateral movement of the slippers and thereby obviate appreciable axial-displacement of the member 20 along the pintle.
Patent GB-448675-A (GB)
Title: Improvements in processes and plants for the artificial drying of ceramic products, and in particular of tiles and bricks
IPC: F26B15/00
Filed: 1935-12-30
Abstract: 448,675. Drying bricks and the like. MONNIER, J. B., 2, Route de Provence, Gap, Hautes-Alpes, France. Dec. 30, 1935, No. 35962. Convention date, Jan. 17. [Class 34 (ii)] [See also Group X] Ceramic products, particularly bricks or tiles made of clay of small capillarity and high shrinkage, are dried in two phases ; in the first, they are dried slowly and progressively by the intermittent circulation of hot air ; in the second, they are dried intensely by the continuous circulation of hot air. As shown, the plant. comprises two tunnels 1, 2 arranged in line, with a shorter, final, drying tunnel 6 between them. Goods to be dried are entered, on wagons 3, into the tunnels 1, 2 by doors 4, 5 and advanced intermittently towards the tunnel 6, from which the dried goods are removed by doors 19, 19<1>. A fan 7 draws air through an adjustable opening 8 and forces it through a heater 9, the heated air circulating by either of the paths indicated by the arrows 18, 18<1> according to the setting of the dampers 12, 13. The latter are reversed periodically, so that the heated air always passes through the tunnel 6 and alternately through the tunnel 1 or 2. Hot air from the cooling zone of the plant, or from a furnace, may be drawn in by the fan 7. Moist air may be discharged through dampers 17, 171.
Patent GB-457148-A (GB)
Title: Improvements in and connected with motor vehicle gearing
IPC: B60K17/04
Filed: 1935-12-31
Abstract: 457,148. Motor vehicles. DAIMLER - BENZ AKT. - GES., Untert³rkheim, Stuttgart, Germany. Dec. 31, 1935, No. 36081. Convention date, April 15. [Classes 79 (ii), 79 (iii), and 79 (iv)] Motor vehicle gearing comprises a driving shaft m disposed beneath the road wheel centres and axle shafts 11, l<2>, and change - speed gearing arranged parallel to the axle shafts and so as to bridge the difference in level between the driving shaft and the axleshafts. In the construction shown, the driving shaft m drives the first shaft p of the change - speed gear through bevel-gearing m<2>, m<3>. The second shaft q of the changespeed gear is between the first shaft p and the axle-shafts l<1>, l<2> and drives the latter through spur gears rl, r<2> and universal joints o<1>, o<2>. A differential gear may be provided in the wheel r<2>. The gears are housed in a gear-box g divided by partitions into three compartments, the outer compartments enclosing the gear-changing wheels p<1>, p<2>. A reverse gear is provided if desired. The gear-box g is mounted, preferably through rubber sleeves, on transverse frame members a<3>, a<4>. The invention is shown in Fig. 3 in connection with the axle-structure and frame forming the subject of Specification 457,147, the gear-box being behind the rear seat n. Relative lateral movement of the gear-box and the axle-structure c‹ is prevented by the engagement of rubber rollers k<2> on the axle with a vertical arcuate rib i formed on the gear-box. The frame longitudinals a<2> pass between the driving shaft m and the axle-shafts.
Patent GB-1403815-A (GB)
Title: Vehicle seat
IPC: B60N2/10
Filed: 1973-07-30
Abstract: 1403815 Adjustable vehicle seats ISRINGHAUSEN Gebr 30 July 1973 [3 Aug 1972] 36085/73 Heading A4J One side of each end of a seat frame 12 which is adjustable in height and inclination is mounted on a base through a toothed segment 7 pivotally connected to the seat frame by a spindle 10, fixed to a tube 8 rotatably mounted in the base frame and biased towards a position in which the seat frame is raised by a spring 14, a pin 5 on one end of a catch member 2 pivotally connected to the base frame being spring biased into engagement with the segment to hold the seat frame in the adjusted position. The other side of each end of the seat frame may be connected to the base frame by a lever 9.
Patent GB-801547-A (GB)
Title: Improvements relating to continuous casting machines
IPC: B22D11/06
Filed: 1955-12-16
Abstract: 801,547. Automatic fluid level control systems. PROPERZI, I. Dec. 16, 1955 [Dec. 31, 1954], No. 36195/55. Class 38 (4). In a system for automatically controlling the level of the surface of molten metal in a continuous casting machine the mould is formed by a channel round the circumference of a rotating wheel and a strip of material wrapped round a portion of the circumference, and changes in temperature of liquid sprayed on the outside of the strip are utilized to control the speed of the wheel through an electric control system. In Fig. 2 a continuous casting mould, e.g. for aluminium bar, is formed between a channel round the circumference of a rotating wheel 12 and a strip 32 which meets the wheel tangentially and encloses a portion of the circumference. The molten metal is supplied through a nozzle 31 and the wheel is rotated at such a speed that the level of the molten metal remains approximately at the point where strip 32 meets wheel 12. The level of molten metal is detected by spraying fluid from a conduit 33 on to the outside of strip 31 and arranging two thermocouples 20, 21 or alternatively two temperature-variable resistors so that one of them is associated with boiling fluid and the other is not when the level is correct. Deviation of the level from the desired position affects the relative temperatures of the thermocouples or temperaturevariable resistors and a potentiometer (not shown) is arranged to be set automatically to a corresponding position. This potentiometer is associated with limit switches which when operated start an electric motor to maintain the level of molten metal between limits by adjusting a variable-speed gear in the drive to wheel 12. A clutch is provided between the motor and variable-speed gear to permit manual adjustment of the latter.
Patent GB-1006278-A (GB)
Title: Improvements in and relating to sealing devices for axially movable members
IPC: F16J15/32
Filed: 1963-09-13
Abstract: 1,006,278. Seals; piston packing; valves. HOERBIGER VENTILWERKE A.G. Sept. 13, 1963 [Sept. 25, 1962], No. 36230/63. Headings F2B, F2T and F2V. A device for sealing a spool valve comprises an elastic sealing ring 18 which is of T crosssection (Fig. 1) or solid-triangular crosssection (Fig. 3) and fixed in position by supporting elements 19 mounted axially one each side of the ring. As shown, the supporting elements 19, which are of tubular form and provided with openings communicable as set by the spool valves with the valve ports 3, 4, 5, 6 in the valve casing, are arranged inside the valve casing and disposed alternately with sealing rings 18 which are adapted to engage with their free edges the valve spool. The whole assembly of elements and sealing rings is secured in position between end glands 11, 12; if desired, the sealing rings in the glands themselves may be of 0-type. In an alternative form, the T-shaped sealing rings are mounted on the piston with the legs directed outwardly.
Patent GB-772137-A (GB)
Title: Improvements in electrical transformers and other cored coils
IPC: H01F27/06
Filed: 1955-12-19
Abstract: 772,137. Transformers and inductors. SKILLMAN & CO. PTY., Ltd., T. S. Dec. 19, 1955 [Dec. 29, 1954], No. 36322/55. Class 38 (2). A clamping and mounting device for transformers or the like having a magnetic core 3 partly surrounding the windings 2 comprises two shells 4, 5, each of which wholly and closely surrounds one end of the core 3, the two shells meeting and overlapping at the middle of the transformer and finally mechanically interlocking with each other. The shells are similar to each other and each comprise an end piece 4 and two side pieces 8 which are at right angles to the end piece 4. The edges 4<SP>1</SP>, 6 of the pieces 4, 8 are bent inwardly at right-angles so that the shell when pushed over the core clamps the laminations thereof together or grips it if it is of a compacted powder construction. The edge of the shell which meets the other shell is formed with a shaped edge such as shown at 9 so that after meeting a corresponding edge and passing over it the corresponding edges finally snap back into the same plane, thereby becoming interlocked with one another. The shells may be stamped from a metal sheet or may be of a moulded plastic construction. Mounting lugs 10-13 are formed integrally with the shells. After assembly the shells may, if desired, be soldered together along the edges marked X.
Patent GB-512550-A (GB)
Title: Improved wood gas generator
IPC: C10J3/00
Filed: 1938-12-14
Abstract: 512,550. Gas-producers. GROBETY, W. Dec. 14, 1938, No. 36492. Convention date, Dec. 14, 1937. [Class 55 (i)] [Also in Group XI] A gas-producer 1, Fig. 1, has an inner casing or reservoir 5 which tapers at the lower end and encloses a funnel-shaped container 7 fitted with nozzles 12 to serve as the combustion chamber. At starting, the lower part of the outer casing 1 is filled with charcoal through an opening 2, more charcoal is introduced into the container 7 through a cover 10, and finally wood is added. A fan 13 draws a current of air through the container and space 6, and the fuel is ignited near one of the nozzles ; the gas generated is filtered by passage through the charcoal in the outer casing. In a modification, the producer is combined with an oven. The reservoir 14, Fig. 2, surrounds the combustion chamber 15, 16 which is provided with a grate 24. Air is introduced into spaces 17, 18, 23 and passes through apertures 19, 20 into the combustion chamber, and gases escape through a channel 22.
Patent GB-1033176-A (GB)
Title: Improvements relating to hydraulic braking
IPC: B60T13/14
Filed: 1963-09-17
Abstract: 1,033,176. Hydraulic brakes. BARMER MASCHINENFABRIK A.G. Sept. 17, 1963 [Sept. 19, 1962], No. 36554/63. Heading F2F. In a method of hydraulic braking heavy-load vehicles a brake lever 29 is loaded to produce a control pressure in chamber 32 of a braking pressure governor 27 which pressure acts on a spring-loaded piston 33 to open a valve 9 to permit pressure fluid to flow via ducts 8, 39 from a pressure storage device 7 to a brake cylinder 40. The braking pressure acts via duct 54 on piston 35 integral with piston 33 to oppose the control pressure and close valve 9 so as to regulate the braking pressure according to the control pressure. The control pressure also acts on a piston 49 of a return-flow governor and when the braking lever is released to reduce or eliminate the control pressure the valve 46 opens to permit the braking pressure to be released via duct 25 to a storage container 1. The pressure storage device 7 is fed from the container 1 by a piston pump 3 acting through a non-return valve 5. A storage pressure governor 12 acts to limit the pressure of device 7, a device 21 damping the pressure peaks from the pump 3. Other embodiments of braking pressure governors are described.
Patent GB-1143055-A (GB)
Title: Improvements in metal benders
IPC: B21D5/02
Filed: 1967-08-10
Abstract: 1,143,055. Angular bending. HAMMERLE A.G. MASCHINENFABRIK. 10 Aug., 1967 [19 Aug., 1966], No. 36673/67. Heading B3E. A bending machine has a work-table and a movable ram, each having a tool-holder on which are mounted several tools, which can be moved from a stand-by to an operative position, the tool-holder associated with the work-table being a movable carriage and being characterized in that a support bar is provided which is pivotable between a stand-by position and an operative position in which it co-operates with one of the tools on the work-table toolholder to form a doubled-over bend in a work-piece, and a means for controlling the support bar mounted in the path of movement of the tool-holder on the work-table. The machine comprises a work-table 1 on which a tool-holder carriage 2 is movable in the direction of the arrows 3. Two bottom dies 6, 7 are mounted on the carriage, their positions being adjustable by wedges 5. A movable ram carries tools 15, 16 and 17 any of which can be brought into the operative position. The support bar 18 has a surface 19 which co-operates with a surface 20 on the die 7, and is keyed to a shaft which is rotatably mounted in the tool-holder. Secured to the ends of the shaft are control arms 21, which as the carriage moves from left to right engage resilient stops 22 which rotate the control arms and lift the surface 19 from the surface 20. Operation.-To form a doubled-over bend in a sheet metal workpiece, the tool 15 is used to form two right-angled bends and then the tool 17 and the die 6 together form the workpiece to the shape shown in Fig. 5. The carriage is moved to bring the die 7 under the ram, the control arms 21 lifting the support bar 18. The partially formed double-bend is placed under the support bar, as shown in Fig. 6, and the tool 16 is brought to the operative position. As the tool 16 descends it engages the upper surface of the workpiece and acts through the workpiece on the bar 18 and hence on the double-bend. The resilient stops 22 permit the downward movement of the free ends of the control arms 21.