baber/WOPTO huggingface dataset:
Patent GB-321683-A (GB)
Title: Improvements relating to a method of and apparatus for taking photographs in colours and/or exhibiting the same for purposes of kinema photography
IPC: G03B33/08
Filed: 1928-08-15
Abstract: 321,683. Jones, W. Corrie-, and Service, R. L. Aug. 15, 1928. Colour kinematography.-Multicoloured flat or curved discs are mounted on the lens holder parallel to the lens and are adapted to rotate in opposite directions in synchronization with the shutter and film changing mechanism. In one form, the lens holder 10 carries an attachment 11 comprising two multi-colour discs 17 having toothed metal rims 18 which are supported by idle cogs 19 and driving cogs 20 and 24' respectively. A driving shaft 22 connected to the camera mechanism carries the double pinion 23, the larger part 20 of which operates one disc whilst the smaller part operates the remaining disc through . the idle pinion 24<1>, so that the discs rotate in opposite directions at different speeds. To prevent blurring at the centre of the discs, the cogs may be eccentrically mounted to cause a relative oscillation of the discs 17, or the discs may be eccentrically mounted in the frames 18. It is stated that when positives obtained in the ordinary way from negatives taken. on panchromatic film material through such discs are projected through a similar attachment placed in the same relative position and operated at the same speed, pictures in natural colours are produced. Various arrangements of the disc colour elements which may include from three to ten different colours and non-coloured parts are described. Corrector discs adapted to correct colour defects may be included in the attachment or in the camera and are arranged to rotate synchronously with the other discs.
Patent GB-440282-A (GB)
Title: Improvements in circuit arrangements for automatically timing the operation of electric relays and contactors or other devices
IPC: H01H47/18
Filed: 1934-08-15
Abstract: 440,282. Control systems for resistance welding. DANNATT, C., 39, Marlborough Road, BRAILSFORD, F., 9, Kenwood Road, both in Stretford, Manchester, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Aug. 15, 1934, No. 23568. [Class 38 (iv)] [See also Group XL] An automatic timing circuit for use on A.C. mains, of the kind in which a relay or other device is actuated by a gas-filled discharge tube, comprises a condenser charged in the anode circuit of the tube and discharged in the control grid circuit to maintain the tube in conducting condition for a given period. The figure shows a tube I supplied from A.C. mains 5, 6 the anode circuit including the operating coil 8 of a relay, a condenser 9 and series resistance 14. The coil 8 has connections brought to a double-pole push-button switch 12, in the undepressed condition of which contacts 13 and 16, and 10 and 15 are connected. The coil 8 is thus shortcircuited and the condenser 9 is charged up from the source 5, 6 in series with the valve 1. Resistance 14 limits the charging current at this stage. Depression of the push-button connects contact 13 to 18 and 10 to 17 thereby including the coil 8 in the anode circuit of 1 and simultaneously connecting condenser 9 in the grid circuit. The relay operates by virtue of the grid potential of valve 1 being swung positive by condenser 9 ; when the push-button 12 is depressed, the grid also derives a negative bias potential from circuit 21, 22, 23, 24. The time period of discharge of 9 is determined by its capacity and resistance 20 ; one or both these valves may be variable. On cessation of discharge the coil 8 is de-energized and the circuit resumes its initial aspect, the condenser 9 becoming negatively charged from the biassing circuit 21, 22, 23. Shunt resistance 28 prevents chattering of the relay armature. The circuit 21, 22, 23, 24 shifts the phase of the grid voltage of valve 1 to compensate for phase shift of anode potential due to coil 8 and resistance 14. The invention is specially applicable to control circuits for spot welding apparatus to ensure exact equality of duration of each weld. The contactor device 12 may be manually or automatically actuated.
Patent GB-995687-A (GB)
Title: Improvements in or relating to the production of conjugated diolefines
Inventor: BARCLAY JOHN LYNN
IPC: B01J23/843
Filed: 1963-06-13
Abstract: Diolefines are obtained by reacting monoolefines having a chain of at least four carbon atoms with oxygen in the presence of a catalyst comprising an antimonate of vanadium, cobalt, nickel, indium, manganese, chromium or zinc or antimony uranate.  The catalyst may be supported on silica and is preferably washed and heated before use to 500-1100 DEG  C.  The reaction feed may contain 1-25% by volume olefin and 1-21% oxygen, e.g. as air, using nitrogen and/or steam diluent.  Reaction is effected at 200-550 DEG  C. for 1-30 using subatmospheric to superatmospheric pressure. Butenes form butadiene and methylbutenes form isoprene. Specification 902,952 is referred to.
Patent GB-163020-A (GB)
Title: Improvements in or relating to devices for sharpening razor blades
IPC: B24D15/08
Filed: 1920-08-14
Abstract: 163,020. Kirsten, F. May 5, 1920, [Convention date]. Addition to 150,307. Stropping-apparatus.-The movement of the blade along the surface of the grinding-rollers 10 described in the parent Specification is replaced by axial movement of the rollers ; the blade-holder and the friction device for oscillating the blade are also modified. The axial movement of the rollers is produced by the engagement with grooves 35 in the hollow shafts 36 of the rollers of arms 33, 34, carried by the nut 28 which is reciprocated by its engagement with the screwed part of the driving-drum 27; the shafts 36 thus rotate and slide upon the fixed shafts 9. The blade-holder comprises a plate 37 having a lug 38 thereon, adapted to engage one end of the blade 23, and pins 39 to engage the holes in the blade; the holder is inserted in the tube 19. Oscillation of the blade, after one side of the blade edge has been ground, is brought about by means of a gear sector 40 which is secured on the trunnion 11 of the tube 19, and engages a sector 41 loosely mounted on a pin 42 extending from thd spindle of the large gear wheel 5. The sector 41 is located between a disc 43 fixed to the pin and a disc 44 slidably keyed on the pin and held against the sector by a spring 46. The friction between the sector and the discs 43, 44 may be adjusted by means of a nut 47. The sectors 40, 41 may have frictional engagement instead of being toothed.
Patent GB-486378-A (GB)
Title: Improvements in fuel injection pumps for internal combustion engines
IPC: F02M59/26
Filed: 1937-08-31
Abstract: 486,378. F u e 1- injection pumps. L'ORANGE, R. Aug. 31, 1937, No. 23807. [Class 102 (i)] A fuel-injection pump for lightfuels comprises a plunger M having a valve F seated on an axial bore which is connected by ports 12, 13 to the suction conduit 15. An inclined edge 2 is provided on the plunger, and delivery commences when it closes a byepass port 9 which leads to a separate conduit 16. In a modification the valve F is omitted and the suction groove 7 co-operates with a port 12 in the plunger. In a further modification the suction port is controlled by the end of the plunger.
Patent GB-701413-A (GB)
Title: Improvements relating to road vehicle construction
IPC: B62D47/00
Filed: 1951-10-12
Abstract: 701,413. Road vehicle body construction. MESSERSCHMITT, W. Oct. 12, 1951 [Nov. 29, 1950; July 7, 1951], No. 23807/51. Class 108(1) A road-vehicle comprises a central passenger-carrying body part 1 secured for example at three points to each end unit 16, 17 and supported on a forward roadwheel unit 5 and a rear road-wheel unit 14 incorporating an engine 15. The junctions between the body parts may be inclined, stepped, or curved. '
Patent GB-607218-A (GB)
Title: Improvements in or relating to lipstick holders or like containers
IPC: A45D40/06
Filed: 1945-09-15
Abstract: 607,218. Lipstick holders and the like. CHABBERT, H. Sept. 15, 1945, No. 23870. Convention date, Dec. 22, 1944. [Class 18] A lipstick holder or other container has one or more hemispherical or arcuate caps that are opened and closed by rotation of a member located at the end remote from the caps and connected to them by a member that is movable longitudinally of the holder. As shown in Fig. 3, a lipstick holder comprising a casing 1, a fixed sleeve 4 with a helical slot 5 and an inner sleeve 2 that is slotted longitudinally and connected for rotational movement to a knob 6, has another sleeve 10 disposed ouside the sleeve 4 and connected to pivoted arcuate closing flaps 18, 19 by wire members 15, 16. The sleeve 10 is slotted to receive a pin 11 on the fixed sleeve 4 and has a cam slot 12 to receive a finger 9 extending through tubes 4, 2 from the lipstick thimble. The pin 9 is normally located at the closed end of the slot 12 but, on rotation of the knob 6 and tube 2, its movement along the slot 13 causes it to depress the sleeve 10 and thereby open the caps 18, 19 through the medium of arms 15, 16. Continued rotation of the knob causes the finger 9 to travel up the inclined slot 5 and so project the lipstick as shown in Fig. 3. Rotation of the knob in the reverse direction retracts the stick and the caps are closed by the finger 9 bearing on the upper edge of the slot 12 and raising the sleeve 10.
Patent GB-440252-A (GB)
Title: Improvements in and relating to ironing or pressing machines
IPC: D06F71/32
Filed: 1935-08-26
Abstract: 440,252. Ironing-presses. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Aug. 26, 1935, No. 23876. Convention date, Aug. 28, 1934. [Class 138 (ii)] In an electrically-heated ironing-press having electrically-operated pressure-producing means, means are provided for decreasing the powerconsumption of the heating means whilst the pressure-producing means are operating. The pressure is produced by a motor 12b, Fig. 3, operating an impeller 21 to withdraw oil or other fluid from above a piston 20 secured to the lower end of a cylinder 12 which carries the motor into the space between the lower face of the piston 20 and a cylinder 5. The cylinder 5 is yieldingly supported in the table 1 carrying the buck and the cylinder 12 is slidably mounted therein and is resiliently secured to the under surface of the buck 15 whereby when the motor is operated the buck is raised into pressure engagement with the head 29. The latter is secured to a carriage 30 which is drawn forward manually along a track carried by the table 1. Means are provided to prevent operation of the motor except when the head is in vertical register with the buck. When the head is out of register with the buck the heating unit 18 of the latter is energized from line 69 through contact 65, bridge 64 and contact 66 and the motor circuit is broken between stationary contacts 57 .... 60 and contacts 53 ... 56 carried by the carriage 30. When the head registers with the buck the carriage operates a plunger 62 to break the heating circuit of the buck and the bridge 64 now connects contacts 67, 68. This, in conjunction with the engagement of the contacts 53 ... 56 with the contacts 57 ... 60, puts the field winding 80 of the motor in series with the armature 81 thereby operating the motor. During such operation a double-pole doublethrow switch 42 is in the position shown wherein leads 85, 86 are connected through contact 50 and arm 48 and leads 89, 90 are connected through contact 49 and arm 47. The carriage is moved rearwardly out of register with the buck manually and the initial movement releases the plunger 62 to re-energize the heater 18 and also short circuits the field winding 80 across the armature. For this purpose the handle 37 is secured to the arms of the carriage through a lost-motion device whereby initial movement of the handle operates a rod 43 to throw the switch 42 so that arm 47 bridges the lines 89, 94 through contact 51 and arm 48 bridges the lines 86, 93 through contact 52. The shorting of the field and armature stops the motor quickly and the buck sinks under gravity ; the motor circuit is broken as the contacts 53 ... 56 ride off contacts 57‹... 60 and the switch 42 is returned to the position shown by a spring 44 on release of the handle. The heating resistance of the head is energized at all times when the main switch 71 is closed.
Patent GB-245514-A (GB)
Title: Improvements in or relating to pneumatic cushions, beds, upholstery and the like
IPC: A47C27/08
Filed: 1924-10-09
Abstract: 245,514. Moseley & Sons, Ltd., D., and Moseley, R. Oct. 9, 1924, Mattresses and cushions of the type comprising an endless pneumatic tube, folded to form a number of parallel sections, have the sections arranged to form a kink in the tube at each bend, which retards the flow of air from one section to another. As shown in Fig. 1, the parallel sections 9 are secured together, at 18, and to the end limb 7 and, at the opposite side of the cushion, to a strip of canvas or the like 14, to retain the parts in position, and to form the end connecting pieces 11, 15 with the kinks 12, 16. These kinks may however be formed by attaching stiffening pieces instead of connecting the parts as described. The kinks may also be stiffened by vulcanizing or otherwise attaching the contacting folds 17 as shown in Fig. 4.
Patent GB-826253-A (GB)
Title: Improvements in or relating to voltage regulating devices
IPC: G05F1/153
Filed: 1956-08-02
Abstract: 826,253. Automatic voltage control systems. LYONS Ltd., C., and BROD, S. Oct. 29, 1957 [Aug. 2, 1956], No. 23931/56. Class 38 (4). A voltage regulator comprises a transformer having a tapped primary winding, a selector switch and a control circuit, responsive to voltage variation, which operates the switch to select a suitable voltage. In the embodiment described the transformer is an auto-transformer with the input tapping arrangement allowing for a range of primary voltages above and below the regulated output voltage. The selector switch is operated by a pawl and ratchet device, there being two pawls each brought into operation by a separate solenoid and giving alternative directions of rotation. The solenoids are connected in the anode circuits of thyratrons VI, V2 and are in series with timedelayed self-cancelling contacts. These switch off the solenoid when the associated pawl has moved the ratchet through one step. The thyratrons are connected in a D.C. bridge circuit one arm of which comprises the saturated diode V3. The filament of diode V3 is supplied by a transformer secondary winding so that any variation of the input voltage will vary the diode temperature and hence its saturation current. The change of current, effective through R 4 , changes the voltage at point 13. If it rises thyratron V1 will strike, but if it falls V2 will strike and in either case the energization of the appropriate solenoid changes the transformer tapping to maintain the required output voltage. Instead of the diode a voltage reference tube may be used. This would stabilize the voltage at point 13 and the thyratrons would fire in dependence upon voltage variations at the ends of resistor R2. These would be proportional to input voltage changes since the bridge is supplied through a rectifier from a transformer secondary winding.
Patent GB-860661-A (GB)
Title: Brushing apparatus for cleaning elongated articles such as steel strip
IPC: B21B45/04
Filed: 1957-07-29
Abstract: 860,661. Cleaning strip &c. materials. OSBORN MANUFACTURING CO. July 29, 1957 [May 6, 1957], No. 23984/57. Class 99(2). A brushing mechanism for cleaning metal strip, sheet or rod comprises a power-driven, rotary brush journalled in supporting means of a brush-surrounding housing having openings for allowing a travelling strip to enter and leave the housing, there being suction ports disposed in the region of both of the openings. As shown, the stand comprises end frames 1, 2 secured to a base frame 9 carried on rollers 10 and reciprocated by a piston-cylinder assembly along rails 13, the frame 9 having on the underside thereof a circular rail 18 supported on flanged rollers 19 ; the rod 22 of a piston-cylinder assembly 23 carries a rack engaging a gear 25 concentric to the rail 18 whereby the stand is swivelled about a vertical axis. Slidably fitted in openings 3, 4 in the frames 1, 2 are bearing blocks 26 ... 29, the blocks 27, 29 each having inset therein piston-cylinder assemblies 42, 43, and 44, 45 so that the blocks 26, 27 and 28, 29 are urged apart. The blocks 26, 28 are vertically adjusted by screws 46, 47 driven in unison or independently by an electric motor 50 and through a clutch and gear-boxes 51 ; the blocks 27, 29 are adjusted in a similar manner by screws 48, 49. The blocks are retained in the openings 3, 4 by keeper plates 30 and journalled in the upper and lower blocks 26, 28 and 27, 29 are cylindrical rotary brushes 57, 59 driven by hydraulic or electric motors. Withdrawal axially of each brush complete with the respective blocks and motor as a unit is made by retracting the screws 46... 49 to relieve the clamping pressure on the blocks, and the plates 30. U-shaped housings 62, 72 provided with openings 63, 73 connected to suction conduits 67, 77 receive scale and debris thrown off by the rotating brushes, and vertically retractable guard plates 81, 82 have on the opposed edges thereof brushes 85, 87 between which the strip passes. The strip may pass horizontally between the brushes 57, 59 or be flexed over one or other of the brushes ; if the axes of the brushes are vertically offset the strip is flexed over each brush so that the working faces of the brushes engage concave portions of the strip. Specifications 645,407, 665,095, 710,222, 809,160, 847,094, 850,461 and U.S.A. Specification 2,682,734 are referred to.
Patent GB-501812-A (GB)
Title: Improvements in and relating to colour photography
IPC: G03C7/08
Filed: 1937-09-03
Abstract: 501,812. Sensitive materials for colour photography. KILLICK, R., and CRISP, C. O. Sept. 3, 1937, No. 24105. [Class 98 (ii)] A film, plate, paper, &c. lias a lightsensitive emulsion associated with a colour filter layer formed by a mixture of differently coloured fine particles of pot glass in the proportion of two parts blue-violet, three parts red and four parts green. In the construction shown in the Figure, the layer 7 of pot glass particles is carried in a gelatine coating 6 applied to the transparent base 5 of a film etc., and has applied thereto a coating of panchromatic emulsion 8. The layer of pot glass is preferably of one particle thickness and may be applied to the gelatine coating 6 by regulated blowing or by gravity, excess particles being removed by shaking, blowing, suction, or gravity. The gelatine may be hardened with chrome alum and may be dyed with a mono-chrome dye similar to one of the colours of pot glass used, to fill gaps left by the one particle thickness layer of pot glass. The light is incident on the base 5 in the direction of the arrow 9. In a modified construction the light is first incident on the layer of pot glass particles.
Patent GB-1191133-A (GB)
Title: A Semiconductor Device with an Emitter, Base and Collector Region, and a Protective Diode
IPC: H01L27/07
Filed: 1967-05-24
Abstract: 1,191,133. Protecting transistors. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 24 May, 1967 [28 June, 1966], No. 24179/67. Heading H3T. [Also in Division H1] A circuit comprises a transistor having a diode of smaller area, preferably formed on the same substrate, and connected between base and collector, the diode having a reverse (Zener or avalanche) breakdown lower than that of the base/collector junction. The device is particularly applicable to prevention of " pinchin " breakdown due to the reverse voltage induced in an inductive load when the transistor is turned off. Integrated circuit construction is described (see Division H1). Reference is made to multiple-emitter transistors having currentshaping emitter resistors.
Patent GB-146016-A (GB)
Title: Improvements in molds for artificial teeth
IPC: A61C13/08
Filed: 1919-10-03
Abstract: 146,016. Jackson, W. J. Mellersh-, (Dentists' Supply Co.). Oct. 3, 1919. Teeth, artificial. - Two-part moulds for the manufacture of sets of artificial teeth are produced in any required number from a single master pattern by an electrolytic process. Each half of the mould is produced from a master pattern A of plaster of paris or metal carved by hand, or first moulded from hand-made model teeth and then finished by hand. Copies of the master pattern A are produced by impressing it in wax E, Fig. 2, dusting the wax with plumbago, and electro-plating it with a continuous layer of metal. The electro-deposited layer comprises, preferably, a thin layer H, Fig. 3, of nickel or nickel-steel deposited under a low voltage and a thicker layer I of copper deposited under a higher voltage. The electrically-deposited shell so formed may be filled with plaster or cement K for use as a further and more durable master pattern, or may be removed and filled with a metal backing for use as an actual mould for the teeth. Fig. 4 shows a complete mould formed of two parts L, M produced in the manner described and having recesses N, N<1> for forming the bisc teeth R, and parts C<1>, C<2> separated to form clearance spaces between the tooth recesses.
Patent GB-1307659-A (GB)
Title: Mass flowmeter
IPC: G01F1/78
Filed: 1971-04-19
Abstract: 1307659 Measuring fluid-flow W MASNIK 19 April 1971 [31 March 1970] 24234/71 Heading G1R In a mass flowmeter in which an input 10, from an incompressible fluid source 5, is connected to a utilization source 7, such as an engine by an outlet 11 connected to branch conduit 12 and 13 the conduit 12 being provided with flow restrictors 14 and 15 and conduit 13 with flow refractors 16 and 17, and a conduit 18 interconnecting the branches 12, 13 between the flow restrictors 14 and 15 and 15 and 16 respectively the arrangement is such that rate of flow of a pump 19 in conduit 18, whether more or less than the rate of flow from the inlet 10 to the outlet 11, is measured by a differential pressure measuring device 20 connected to a gauge 21 in a duct bridging the branches 12 and 13 and by a gauge 21a connected to a differential pressure measuring device 20a and bridging the pump 19 between the branch conduits 12, 13 and intermediate the flow restrictors 14, 15 and 16, 17. The restrictors may have all sharp edged orifices, one sharp and one rounded edge or all rounded edges. In an alternative arrangement Fig. 5, (not shown), the conduit bridging the conduits 12, 13 may be connected to the conduit bridging the pump 19 and on opposite sides of the measuring device 20a through valves which may be manually or automatically operated.
Patent GB-1404505-A (GB)
Title: Lifting air bag for the turning of loads
IPC: B66F3/35
Filed: 1972-09-28
Abstract: 1404505 Inflatable jacks B J JAFFRAY 18 Dec 1973 [28 Sept 1972] 24319/72 Heading F1D An inflatable jack for moving loads along a circular path has ties 4, Fig. 2, which are attached to a point at the centre of the circular path. As described the jack is suitable for righting a vehicle 7. The ties are then attached adjacent a point 6 about which the vehicle pivots as it is raised. A second jack 17 may be used to check the descent of the vehicle. Fig. 3 shows an embodiment by means of which a load 7 is cradled, raised and moved laterally. Straps 23, 27 which pass round the jack are provided.