baber/WOPTO huggingface dataset:
Patent GB-887909-A (GB)
Title: Photographic camera with coupled exposure meter
IPC: G03B7/06
Filed: 1958-08-15
Abstract: 887,909. Photographic cameras. AGFA A.G. Aug. 15, 1958 [Aug. 28, 1957], No. 26353/58. Class 98(1). In a camera having a coupled exposure meter, the transmission connecting the aperture and/or shutter speed controls with the meter includes a cam, which can be disengaged from the remainder of the transmission and adjusted independently thereof, so as to take into account further factors such as film speed. In the form shown, aperture and shutter speed setting rings 4, 5 act on an integrating drive causing axial movement of pin 7. A rack 16 on pin 7 engages a, pinion on a hollow spindle 10 to cause rotation of the latter. Spindle 10 is secured against axial movement by discs 13, 14 fixed at its ends. Within the hollow spindle is a further spindle 17 having at its lower end a knob 18. At its upper end is fixed a cam plate 19, on whose edge 20 slides a feeler member 25 of a.lever 26, which transmits 'the movement to the follow-up pointer 30 so that it may be brought into coincidence with the galvanometer needle 31. The knob 18 is normally locked to disc 14 bv a pin 23 which engages in one of a set of holes in said disc, so that both spindles rotate together. By pulling knob 18, and hence spindle 17, downwards against the action of a spring 21, pin 23 is disengaged from its hole, so that spindle 17,. and hence cam 20, can be rotated independently of spindle 10, to adjust for different film speeds. Knob 18 and disc 14 carry a film speed scale and an index mark respectively. When the correct speed has been set, knob 18 is released so that pin 23 re-enters the appropriate hole in disc 14, and the two transmission sections are locked together once more. In Fig. 4 (not shown) the arrangement is modified to have the members 14 and 18 on the top plate of the camera, and they are coupled together by frictional engagement. The follow-up pointer may be dispensed with, the lever 26 acting directly on the galvanometer as a whole, to bring its needle to a fixed index.
Patent GB-774082-A (GB)
Title: Process for the preparation of pregnane derivatives
IPC: C07J5/00
Filed: 1953-09-24
Abstract: The invention comprises compounds of the formul <FORM:0774082/IV(b)/1> wherein R1 represents hydrogen or an organic acid residue and R2 represents an organic acid residue, and the preparation of pregnane derivatives characterized in that 11-dehydro sarmentogenin or esters thereof is subjected to a treatment for opening the lactone ring with the aid of ozone to produce a glyoxylic acid ester and subsequently the reaction product is saponified in alkaline medium as a result of which 3b ,14b , -21-trihydroxypregnanedione-11,20 or its 3b -3b -monoester is formed. The 3b ,14b ,21-trihydroxypregnanedione-11,20 or the mono-ester thereof can be converted into the diacyloxypregnene-14-dione-11,20, which may be hydrogenated to the corresponding pregnane compound, by esterification of the 21-hydroxy group and splitting off by means of a dehydrating agent the 14-hydroxyl group in any sequence.  An example describes the preparation of 3b ,21 - diacetoxy - pregnanedione - 11,20. Specification 774,081 is referred to.
Patent GB-416815-A (GB)
Title: Apparatus for the regulation of a plurality of electric lighting units supplied with alternating current
IPC: H05B37/02
Filed: 1933-09-25
Abstract: 416,815. Control systems for consuming devices. SIEMENS-SCHUCKERT-WERKE AKT.-GES., Siemensstadt, Berlin. Sept. 25, 1933, No. 26417. Convention date, May 11. [Class 38 (iv).] Relates to a dimming arrangement for theatre &c. lighting. The lamp groups 14, 15, 16 are supplied from separate phases of a star-connected autotransformer 1, 2, 3 provided with tap-changing mechanism 8, 9, 10 operated by cords 17, 18, 19 which pass over pulleys and attach to winders mounted in a convenient place. In a modification (Fig. 3), certain of the tap-changing mechanism is operated by a reversible electric motor under the control of raise and lower switches 36, 35. Limit switches 40, 41 are provided to prevent overrunning.
Patent GB-1139053-A (GB)
Title: Fluid pressure servomotor
IPC: B60T13/569
Filed: 1966-06-14
Abstract: 1,139,053. Fluid-pressure brakes. BENDIX CORP. 14 June, 1966 [17 June, 1965], No. 26418/66. Heading F2F. In a fluid pressure servomotor for power brakes a housing formed by forward and rearward shell portions 12, 14 is divided by a front movable wall formed by a diaphragm 30 and stiffener plate 38 dividing the housing into two variable volume chambers 50 and 52, a rear movable wall A is arranged within the rear variable volume chamber 52 and carries a valve mechanism 100, 96 operable by an operator-actuated pushed rod 98, the valve mechanism communicating the rear variable volume or control chamber 52 to the front variable volume chamber 50 in its released position and to atmospheric pressure in its actuated position, at least a part of the rear movable wall A abutting a hollow diaphragm 32 filled with atmospheric air so as to retain the rear movable wall A in its rearmost position under normal circumstances and to limit the travel of the push rod 98 to that required to operate the valve mechanism so long as the pressure in the rear variable volume chamber 52 is substantially less than atmospheric pressure. In operation, initial depression of the push rod 98 urges the valve 96 on to its seat 100 and further movement of the push rod will lift the valve seat formed on a push connector 78 away from the valve 96 to permit atmospheric pressure to flow to a control chamber 54b via the passage 104 to the interior of a diaphragm 60, whenever atmospheric pressure is reached in the control chamber, further effort on the push rod 98 will be effective to mechanically move the force transmitting rod 40 to actuate a pressure transmitting means (not shown), at the same time the vacuum in a chamber 54a, linked to the front vacuum chamber 50 through tubular portions 16 and 18, will no longer be effective to resist the application of the increase force to the force transmitting means because the limited area of the diaphragm and the fact that the pressure within the hollow diaphragm 32 is equal to that within the control chamber 54b is such that the vacuum actuating thereon at the power runout condition servomotor is only such as to provide a limited field to the brake pedal so that it does not automatically move away from the operator and is capable of moving when it is desired to increase the output pressure of the servomotor. The reaction device consists of a diaphragm 58 a plate 80, annular elements 84 and 86 and a spring 90 to provide the driver with a reaction force which is exerted so long as the power runout condition has not been reached. Alternative embodiments are disclosed in the Specification wherein the servomotor housing is formed of two shells of different diameters, the hollow diaphragm member and the reaction diaphragm member being disposed coaxially and spaced apart from each other within the small diameter shell of the servomotor housing.
Patent GB-1490352-A (GB)
Title: Spark ignition engine
IPC: F02M31/00
Filed: 1975-06-16
Abstract: 1490352 Controlling hot-spot temperatures in IC engine manifolds BRITISH LEYLAND UK Ltd 16 June 1975 [14 June 1974] 26426/74 [Also in Division F4] A spark ignition engine has an intake and an exhaust duct, and between these ducts, a heattransfer path whose heat conductive capacity is varied by controlling an amount of molten metal (e.g. Hg, Na, Na-K eutectic alloy) in the path in response to a sensor in the intake duct, preferably sensing the temperature of air/fuel mixture in the intake duct. The sensor may be a gas reservoir disposed in heat exchange relationship with fluid in the intake duct and coupled to the heat-transfer path whereby heating of the gas displaces molten metal from the path, for example to another reservoir which may be pressurized to return the molten metal to the heat-transfer path at a later time. Alternatively, the molten metal may be moved in and out of the path by gas-pressure or vacuum in a gas or vacuum reservoir, which may communicate with the path via valves (e.g. solenoid operated) operated in response to a sensor in or adjacent the intake duct (e.g. a thermocouple). The heat-transfer path may be constituted by a capsule having a pair flat surfaces separated by a space into which molten metal may be introduced. Heat is conveyed from the exhaust duct by fins extending thereinto from the capsule, whilst the surface of the intake duct may be roughened by attachment of a gauze in order to aid evaporation of fuel droplets which have been deposited.
Patent GB-532906-A (GB)
Title: Improvements in or relating to iodine bottles and like containers
IPC: B65D1/08
Filed: 1939-09-25
Abstract: 532,906. Closures for bottles. RAE, J., and CLAY & ABRAHAM, Ltd. Sept. 25, 1939, No. 26548. [Class 125 (iii)] An iodine container a or the like has a closure d of rubber or rubber composition provided with an internal bead f which springs into a recess c or constriction in the pear or teat shaped bottle neck when the closure is forced on. The interior of the cap is shaped to conform to the exterior shape of the bottle neck, and it may have a protuberance to effect a sealing engagement with the bottle mouth outlet. It is of stable form and does not collapse when apart from the bottle.
Patent GB-519031-A (GB)
Title: Improvements in or relating to means for relieving pressure in the delivery pipes of injection pumps for internal combustion engines
IPC: F02M59/46
Filed: 1938-09-12
Abstract: 519,031. Fuel injection pumps. SKODA WORKS, PLZEN. Sept. 12, 1938, No. 26549. Convention date, Sept. 11, 1937. [Class 102 (i)] The pressure in the delivery pipes of the injection pumps of internal combustion engines is relieved by a device arranged in parallel with the non-return valve 4, 5, this device being connected by ducts 12, 13 with the working chamber 10 of the pump and with the delivery pipe 11, and containing a spring-controlled compensating member 7 the speed of movement of which is determined by the cross-sectional area of one or both of the ducts in relation to the spring 6 of the non-return valve. By this means, the pressure relief may be made the same at high and low pressures. In a modification, the pressure relieving device is mounted in the movable part of the non-return valve.
Patent GB-677958-A (GB)
Title: Improvements in an electronic overload control for motors
IPC: H02H7/085
Filed: 1950-10-31
Abstract: 677,958. Control of motors. CRANE PACKING CO. Oct.. 31, 1950. [Nov. 1, 1949] No. 26600/50. Class 38 (iii). Relates to the overload control of an electric motor 10 which is started by closure of a switch 54 to energize relay-coil 15, the change-over of switch 20 from contact 21 to contact 22 then de-energizing coil 15 and energizing holding relay-coil 16. A relay 48 is energized by closure of contacts 17, 18, this relay being of the timedelay type so that it remains inoperative for a period which is longer than the duration of the initial current-surge through the motor. Closure of contacts 47, 49, energizes a relay 38 to open switch 40, close switch 41, and connect a transformer primary winding 31 in series with the motor. The switch 40 remains engaged for a period sufficient for switch 41 to close, so preventing an interruption of motor-operation. A current representative of the motor-current is thus applied through transformer 30 and lines 24, 25, to the armature-winding 63 of a meter comprising a pointer 64 having a metallic flag 65 adapted to pass between a pair of coils 66, the inductance of which is varied by the passage of the flag therebetween. Coils 66 are in the input circuit of a gas-filled valve 67 which has the coil 70 of a relay 69 in its output circuit. When flag 65 is not located between the coils, relay 69 is energized and switch 71 is closed to energize the holding-coil 16. Upon the motorcurrent reaching a pre-determined value the flag 65 passes between coils 66 and the tube 67 closes to conduct thereby opening switch 71 and de-energizing coil 16. The coils 66 are movably mounted so that the overload control may respond to different values of motorcurrent.
Patent GB-442900-A (GB)
Title: Improvements in or relating to permanent magnet assemblies
IPC: H04R9/02
Filed: 1934-09-17
Abstract: 442,900. Magnets. ENGLISH STEEL CORPORATION, Ltd., Vickers Works, and SWAN, J. C., 74, Totley Brook. Road, Dore, both in Sheffield. Sept. 17, 1934, No. 26614. [Class 35] [See also Group XXXIX] A permanent magnet for loud-speakers &c. has two coaxial annular air gaps in series, the inner gap being shunted by a piece of magnetic material so arranged that the flux across the two gaps is in the required proportions. In the arrangement shown, an annular magnet 15 is provided with a plate 21 forming an outer polepiece for the outer air gap and a base plate 10. To the plate 10 are secured a central stem 12, which may be of magnet steel, carrying a central polepiece 13, and an annular member 16 carrying an annular polepiece 19 and serving as a shunt for the gap between the members 13 and 19. A ring 25 of non-magnetic material may be introduced to increase the reluctance of the shunt, or the shunt may be of such size as to be normally saturated. A coil 32 in the inner gap is carried by a diaphragm 29 attached by a ring 31 to a cone 27 mounted on the annular polepiece 19 and a coil 38 in the outer gap is carried by a diaphragm 37 attached by rings 34:, 35 to arms 33 mounted on the plate 21. In a modification, the diaphragm 29 is supported by arms attached to the ring 35 and is separate from the cone 27, which is retained as a baffle.
Patent GB-1081845-A (GB)
Title: Apparatus for the study of small-angle scattering of x-rays
Inventor: BOTTAZZI HENRI
IPC: G01N23/201
Filed: 1965-06-23
Abstract: 1,081,845. X-ray spectrometers. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. June 23, 1965, No. 26642/65. Heading H5R. In X-ray apparatus for examining a specimen at small angles of diffraction, the radio-goniometer or explorer arm, carrying the detector, is angularly displaced about its pivot by means of an endless ribbon mounted on rollers. The apparatus comprises a base 1 along which can move three main carriages, 2, 9 and 23, which are secured by bolts in the positions required. The first carriage 2 is provided with a rotatable turret head and an auxiliary carriage carrying the X-ray tube. The second carriage supports a monochromator unit, comprising a non-symmetrical arcuate quartz plate 13 with inlet and outlet slits, the former comprising two tantalum blades. The carriage also carries next to the outlet slit a variable diaphragm 16 also comprising two tantalum blades and having control knobs 17, 18 to vary the spacing. This diaphragm delimits the beam width from the monochromator, while a similar one 20 carried by the third carriage 23 screens the detector from diffused radiation from the former. The carriage 23 supports an auxiliary carriage 25 which is movable transversely of it. This auxiliary carriage supports the pivot of the radio-goniometer arm 27, above which pivot is mounted the sample to be examined, which may be a solid powder or a liquid contained between thin beryllium windows. The detector 29, a photographic chamber, Geiger counter or scintillation counter is movable along the arm 27 by means of a slot 27a and is provided with an inlet diaphragm 31 similar to those 16 and 20. Below the arm is a part having an arcuate surface 37 against which the endless ribbon is pressed under tension in order to rotate the arm about its pivot. The ribbon is of spring steel and is mounted on rollers 36 whose shafts (38) carry gear-wheels (39) (Figs. 2, 3, not shown). The gears are driven by a common transverse horizontal shaft (41) driven through gears by an electric motor (45). Means are provided either electrically by means of an electric contact device or photo-electric system or by means of a visual scale 49 on the base to indicate the angular displacement of the arm from an initial line.
Patent GB-227226-A (GB)
Title: Improvements in wheel locking mechanism for perambulators
IPC: B62B5/04
Filed: 1923-10-25
Abstract: 227,226. Fraser, J. A. Oct. 25, 1923. Locking by positive detents.-The straight brake-lever A, A' is pivoted midway on an axle B carried by a clip C on an underframe member D or on a suspension spring, so that on application of the foot to the arm A' the lever A, A<1> is swung horizontally at right-angles to the plane of rotation of the wheel E and locks between the spokes. A spring G keeps the lever in either adjusted position and a rubber covering F may be fitted to the arm A. Notches on the boss of the lever and on the clip C may assist the spring G and stops may limit the rotation of the lever.
Patent GB-355533-A (GB)
Title: Improvements relating to power transmission mechanisms
IPC: F16H61/02
Filed: 1930-09-06
Abstract: 355,533. Claw clutches ; facilitating changing speed. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(General Motors Corporation ; Detroit, Michigan, U.S.A.) Sept. 6, 1930, No. 26703. [Class 80 (ii).] A claw clutch 34, 35, Fig. 2, is synchronized by a friction cone 37 brought into action momentarily by inclined detent surfaces 45, 46, Fig. 5, which are nearer the gear axis than both the clutch teeth and the cone 37. The clutch is shown as an isolating clutch between the variably-driven hollow shaft 12, Fig. 2, of vehicle gearing and the propeller shaft 3. The cone 37 rides loosely on the movable clutch member 33 with the internal teeth 34 and is held there by a clip ring 40. The cone 37 has inwardly extending dogs 42, Figs. 5 and 6, with extensions 43 always lying in slots 44 in the fixed external dog-clutch member 36. When member 33 is advanced from the position of Fig. 2 to the left, the extensions 43 on the cone dogs are arrested by springs 47 fixed in the slots 44. Coned member 33 engages cone 37 which turns relatively sufficiently to bring detent surfaces 46, 45 into engagement. Member 33 with its teeth 34 is thus brought to rotate at same speed as teeth 35. Continued movement to the left of member 33 causes lugs 42 to slip past detents 45 and pass along the middles of grooves 44 allowing teeth 35 to advance to the engaged position shown in Fig. 3. The isolating clutch shown in Figs. 2 and 3 is adapted to be engaged when either of two slide selectors 20, 21, Fig. 9, is moved in either direction from neutral. The selectors are geared to two independent toothed sectors 29. When either selector is moved either way, one of the sectors 29, Fig. 2, is moved upwards and to the left, or downwards and to the left. This necessary leftward movement is used through either of two racks 31 in a frame 32 to give the leftward displacement to member 33 necessary to engage the clutch. The initial movement of slide 20 effected from control lever 16 brings unloaded sliding gear 10 partly into mesh as shown in Fig. 2. Continued movement engages the clutch so that the load is applied to the gear pair 10, 8 when fully engaged as shown in Fig. 3.
Patent GB-1214018-A (GB)
Title: Blanket
IPC: A01K13/00
Filed: 1968-06-05
Abstract: 1,214,018. Animal blanket. LAVENHAM RUG CO. Ltd. 5 June, 1969 [5 June, 1968], No. 26777/68. Heading A1M. An animal blanket 1 comprises three layers of material quilted or stitched together, the outer layer 4 being waterproof fabric, the middle 8 being heat insulating, and the inner 6 having a texture which clings to the animal's body. The outer layer is nylon, the inner has outwardly directed fibres and may be of brushed nylon, and the middle layer is polyester fibre. The blanket is shaped and cut to fit the animal, the preferred embodiment being a horse blanket.
Patent GB-650156-A (GB)
Title: Improvements in or relating to hose clasps
IPC: A41F11/04
Filed: 1948-10-14
Abstract: 650,156. Hose suspender grips. JENKIN, D. Oct. 14, 1948, No. 26778. [Class 44]. A hose suspender clip of the flat type, comprising a loop 10, Fig. 1, of tapering form, and a flexible and resilient tongue 15, also of taper-' ing form, secured to the loop at the wide end and having at the smaller end a flat disc 17 on one face of which is a projection 18 adapted to lie within the narrow end of the loop, is characterized in that the 'loop is formed without any cross-bar between its narrow end and the point at which the tongue is attached. The tongue may be formed with a tubular bead 16 at the wide end, and the loop with projections 14 extending into the bead to connect the two parts, or as shown in Fig. 3, a cross-bar 21, formed with splayed out teeth which are pressed into the tongue, may be provided. Projections 18 may be formed on each side of the tongue.
Patent GB-1009268-A (GB)
Title: Improvements relating to aircraft
Inventor: WILDE GEOFFREY LIGHT
IPC: B64C29/00
Filed: 1963-07-05
Abstract: 1,009,268. Gas turbine jet engines. ROLLSROYCE Ltd. July 5, 1963, No. 26832/63. Heading F1J. [Also in Division B7] A twin-shaft gas turbine jet engine 13 mounted vertically in an aircraft (see Division B7) to provide direct lift. The engine has a three-stage L.P. compressor 17 driven through a shaft 34 by the L.P. turbine 32, and a fourstage H.P. compressor 22 driven through a shaft 37 by the H.P. turbine 30. The shafts 34, 37 rotate in opposite directions to reduce gyroscopic couples. The compressors are adapted for use in transonic conditions and the guide vanes 16, the L.P. stator blades 19, the first two stages of H.P. stator blades 24, and the part of the casing 15 surrounding the compressors are made of glass fibre reinforced resin. Bearings 35, 36, 40, 41 are lubricated by a single shot of oil or by a metered or variable flow of oil and are cooled by air 46 from the L.P. compressor. The fuel control supply system 42 is housed in the L.P. compressor, and the combustion chamber 26 is such that a single toroidal reversal of the combustion gases occurs therein.
Patent GB-1332047-A (GB)
Title: Casting of metal in a continuous casting plant
IPC: B22D11/14
Filed: 1971-04-19
Abstract: 1332047 Continuous casting URALSKY ZAVOD TYAZHELOGO MASHINSTROENIA IMENI S ORDZHONIKIDZE 19 April 1971 [18 June 1970] 26878/71 Heading B3F A continuous casting plant has a curved-axis mould 1 and a secondary cooling zone with guiding means, and the strand path provided by mould and guiding means comprises successive sections which are:- a circularlyarcuate section with a radius R 0  and starting within the mould, a curved transition section with a continuously varying radius R and a straight section to the end of the guiding means where solidification is complete; the length L 1  of the first section (from the point where it is vertical to its junction with the transition section) being 0À2 to 0À4 times the total length L 0  of the mould and guiding means; the length L 2  of the second curved section being 1À3 to 1À8 times (#/ 2  - # 0 )R 0  where # 0  is the angle in radians between the horizontal and a line through the junction between the first two sections and the centre of curvature of the first section; the radius R of the second (transition) section at any point given by the equation R=ah/(L 2 -S 1 ) where a is a constant, h is the radial thickness of the liquid core 4 of the strand 3 at that point and S 1  is the distance of the point from the junction between the first two sections.