baber/WOPTO huggingface dataset:
Patent GB-966355-A (GB)
Title: Improvements in power-operated friction clutch arrangements
IPC: F16D25/10
Filed: 1963-02-28
Abstract: 966,355. Friction clutches; change-speed gear. DAIMLER-BENZ A.G. Feb. 28, 1963 [March 10, 1962], No. 8173/63. Headings F2C and F2D. Two friction clutches are arranged within a rotatable drum and on the same side of a disc supporting the drum, the clutches being controlled by two liquid pressure servos each having its own piston, one piston acting as the servo cylinder of the other piston. In one form, diso clutches 11, 12, Fig. 1, arranged one behind the other, are engaged selectively or together by admitting oil under pressure through shaft ducts 48, 53 to act upon two pistons 29, 30, respectively, slidable within a rotatable drum 24 carried by a disc 25, the skirt 33 of the piston 29 acting as a servo cylinder within which the piston 30 is carried. The piston 29 acts through pins 44 axially slidable within the drum 24 upon the pressure plate 46 of the clutch 11, while the piston 30 acts directly upon the clutch 12. Springs 56 bias the piston 30 to the clutchdisengaged position. In another form, disc clutches 11, 12, Fig. 4, arranged one within the other, are selectively or together engaged by admitting oil under pressure to act upon pistons 117, 124, the piston 117 sliding in a drum 110 and having a skirt 118 within which slides the piston 124. A valve 129 in the piston 117 is normally biased by a spring 130 to close a duct 128 venting the servo space 122 which is put under pressure to act upon the piston 124 &c. If, during torque transmission, the clutchengaging pressure supplied to the servo space 122 is shut-off, while the liquid pressure applied to the servo space containing the piston 117 is maintained, the latter pressure acts against the valve-closing bias of the spring 130 to open the valve 129. Oil in the servo space 122 is then rapidly vented by centrifugal force through the port 128. Change-speed gear.-Engagement of the clutch 12, Fig. 1, connects an input shaft 10 to a ring gear 17 meshing planet pinions upon a carrier 19 fast with an output shaft 18, simultaneous engagement of a brake 23 stationing sun gears 14 . . . 16 to establish a reduced ratio. By disengaging the brake 23 and engaging the clutch 11, the sun gears 14-16 are connected to the input shaft 10, so that with the clutch 12 still engaged, direct drive is obtained. On disengaging the clutch 12 while maintaining the clutch 11 engaged, and also engaging a brake 22 to station a carrier 21 mounting planet pinions meshing the sun gear 15, reverse drive is obtained through a ring gear 20 meshed by these planets and fast with the output shaft 18.
Patent GB-987266-A (GB)
Title: A contact spring assembly for relays, selectors and other switching equipment
IPC: H01H50/56
Filed: 1962-03-02
Abstract: Contact springs for relays and other switching equipment (see Division H2) are of a hard rolled silver alloy containing copper and beryllium, e.g. 10% copper, 1% beryllium and 89% silver.
Patent GB-328385-A (GB)
Title: Improvements in or relating to anti-dazzle devices
IPC: B60Q1/14
Filed: 1929-03-13
Abstract: 328,385. Hudson, J. D., Pierce, G., and Dawes, N. J. March 13, 1929. Lantern screens.-An anti-dazzle device for Use more particularly with the lamps of motor vehicles, although not confined to such use, comprises a number of horizontal plates 18, Figs. 3 and 4, extending forwardly in front of the bulb 16 and that portion of the reflector 15 only in the immediate vicinity of the bulb, the plates 18 being connected to side plates 19, 20 which are in turn detachably secured by wire extensions to the rim of the reflector. The plates 18 are dulled or roughened, or both dulled and roughened, on their upper surfaces. The plates 18 may be replaced by tubes 60 as shown in Fig. 6. The reflector is pivotally mounted in the lamp casing and operated by a solenoid the core 50 of which is connected by a frame 51 and toggle levers to the reflector.
Patent GB-127870-A (GB)
Title: Improvements in Bombs to be Dropped from Aircraft.
Inventor: HAWKEN DARCY ALBERT
IPC: F42B12/20
Filed: 1917-06-09
Abstract: 127,870. Hawken, D. A. June 9, 1917. Projectiles; projectile fuses. -Consists in an aircraft bomb the firing-mechanism of which comprises a screw threaded through a nut and adapted to actuate pivoted firing-hammers when the end of the screw strikes a target. The screw 8, passing through the nut 13 which can slide bodily but cannot rotate, is contained in a central tube 6 in the bomb, and has fixed on its lower end' panel or " resister " 11. When the bomb is dropped, its body is rotated. by vanes 7, but the air-resistance, acting on the panel 11, prevents the screwed spindle from turning. Consequently, it moves outwards from the position shown in Fig. 2 to that shown in Fig. 3, liberating pivoted hammers 19. On impact, the screw and its nut are driven inwardly against the action of a spring 15, and the upper end 12 of the screw forces the hammers against ignitioncaps 17.
Patent GB-1439436-A (GB)
Title: Thin silicone rubber films and membranes
IPC: C08J5/18
Filed: 1974-02-22
Abstract: 1439436 Cured organopolysiloxane films and laminates UNITED STATES SECRETARY OF HEALTH EDUCATION & WELFARE 22 Feb 1974 [23 Feb 1973] 8283/74 Headings B5B and B5N [Also in Divisions B2 and C3] Silicone rubber films are made by: (a) dispersin a curable organopolysiloxane and a filler in an organic solvent; (b) centrifuging the dispersion to remove undispersed filler; (c) casting the dispersion on to a carrier from which the resulting film can readily be removed; (d) evaporating the solvent and (e) curing the film. The curing may be brought about by adding an organic peroxide curing catalyst to the dispersion prior to casting and heating the cast film at 125 to 180 C. Curing may also be effected by irradiation. The film can be given a post-cure treatment with ultra-violet light. The films are gas-permeable but impervious to liquid. The preferred silicone is methylvinylpolysiloxane and the preferred filler, silica. The film, may be re-inforced by use of a fabric such as fibreglass, polyamide or polyester fabric.
Patent GB-1045936-A (GB)
Title: Air conditioning systems
Inventor: BLUM ROBERT DAVID
IPC: F24F3/10
Filed: 1964-02-27
Abstract: 1,045,936. Air conditioning. BORG-WARNER CORPORATION. Feb. 27, 1964, No. 8310/64. Heading F4V. In. a zoned air conditioning system the speeds of the fan motors of units in each zone are centrally controlled. As illustrated, units 10 are arranged in two zones, and in each zone the motors 13 of fans 12 are controlled by a voltage regulator 16. Heat exchange coils 11 in the units are fed by a three-pipe system, liquid in the hot line being heated by a boiler 37 and liquid in .the cold line being cooled by the evaporator, 25 of a compression condensation refrigeration system. Valves 36 regulating the entry of liquid to the heat exchangers are controlled by thermostats 49 which are adjustable by room occupants.
Patent GB-472479-A (GB)
Title: Improvements in or relating to electrode boilers
IPC: F22B1/30
Filed: 1936-03-20
Abstract: 472,479. Heating water by electricity. HARLING, S. C. March 20, 1936, No. 8330. [Class 39 (iii)] A boiler J is heated by current passing through the water therein between immersed electrodes, and water is supplied to the boiler from a tank Q under the control of valve C, while a release pipe M, connected to the boiler below the lowest working water level, is also provided through which water is forced back to tank Q when steam is generated in the heater. The electric current supplied to the boiler is reduced by the water level falling and uncovering the electrodes and thus the water is prevented from exceeding a predetermined temperature. The boiler supplies hot water through a valve Ub to a sink ZT. When this valve is shut the pressure in the boiler increases and steam is generated which is supplied for use through valve Ua. Alternatively by shutting all valves except valves A and F the boiler may be placed in circulating connection with a steam heated apparatus Z. When used in this manner the pipe M1 acts in a similar manner to pipe M and prevents the generation of excessive steam pressures.
Patent GB-582773-A (GB)
Title: Improvements in or relating to the projection of stereoscopic cinematograph images
IPC: G03B35/00
Filed: 1944-05-03
Abstract: 582,773. Stereoscopic kinematography. WRIGHT, E. H. May 3, 1944, Nos. 8377/44 and 12922/45. [Class 97 (i)] Left and right eye pictures arranged alternately on a single width film are projected simultaneously by plane or circularly polarised light of differing polarisations in respect of each picture, the film being fed forward a single frame for each projection and means being provided to change the polarisation of the projection beams during each picture shift so that each eye-view picture is always projected by light polarised in the same plane or circularly polarised in the same direction. For plane polarised light the beam from a source 10 falls on a polariser 12 of the type described with reference to Fig. 1 of Specification 580,869 and the emergent plane polarised beam falls on the film 13 in a gate 14 accommodating two picture frames. A half-wave plate 15 covers one of the pictures in the gate and rotates the plane of polarisation of part of the beam through a right angle. The two beams pass through the projection lens 17 and are superimposed on screen 19 by the mirror system 20, 21, 22, the mirrors 21, 22 being slightly inclined to one another. When the film is fed by one frame, the picture previously covered by the plate 15, for example a left-eye film, is replaced by a right-eye view and to ensure that it is projected by light polarised in the same plane as for the previous projection an alternator 18 of the type described in Specification. 555,670 is employed. Alternatively, this may comprise a disc rotated in synchromism with the picture fed and including two arcuate apertures, one of ordinary glass and the other comprising a halfwave plate. For circularly polarised light, the polariser 12 is substituted by a polariser of the type described with reference to Fig. 2 of Specification 580,869, which produces two plane polarised beams of different planes of polarisation. A quarter-wave plate placed in front of or behind the lens 17 converts the plane polarised beams into clockwise and anticlockwise rotating circularly polarised beams which may be superimposed on the screen by the mirror system shown or by a biprism. The direction of rotation of the polarisation of each beam is reversed during picture shift by a similar alternator 18. The audience is equipped with suitable spectacles and a half-wave plate 16 may be inserted in the beam to ensure appropriate polarisation when projection begins. Specifications 570,878 and 580,870 also are referred to.
Patent GB-108875-A (GB)
Title: Improved Manufacture of Titanic Acid Pigment Products.
Inventor: WADE HAROLD
IPC: C09C1/00
Filed: 1916-06-15
Abstract: 108,875. Wade, H., (Titanium Alloy Manufacturing Co.). June 15, 1916. Pigments are obtained by precipitating orthotitanic acid upon insoluble substances or " extenders " such as barium .sulphate or calcium sulphate, which may be precipitated in the solution or may be added to the solution, other " extenders " mentioned being silica, Chinaclay, and asbestine. To a titanic sulphate solution may be added calcium or barium hydrate or barium sulphide or the like, which precipitate both an insoluble sulphate and titanic acid; or an " extender " such as barytes may be added to the titanic sulphate solution, and then precipitation is effected with an alkali, such as sodium hydrate, ammonium hydrate, potassium carbonate, or sodium sulphide. The precipitate is calcined at, say, 600-800‹ C. The titanic sulphate solution may be freed from such metals as copper by treatment with sulphuretted hydrogen, and, if iron is present, the precipitant for the pigment should be a sulphide or a mixture of a sulphide and hydrate, such as sodium sulphide and hydrate. The effect of this is to precipitate iron as sulphide with the pigment. Sulphurous acid is then passed in to dissolve the iron sulphide, leaving the pigment precipitate free from iron.
Patent GB-398849-A (GB)
Title: Improvements relating to road vehicle lamps
IPC: F21V19/00
Filed: 1932-03-22
Abstract: 398,849. Vehicle lamps. LUCAS, Ltd., J., LUCAS, O., and EGGINTON, W. H., Great King Street, Birmingham. March 22, 1932, No. 8470. [Class 75 (iv).] Mounting electric lamps in lanterns.-In a roadvehicle lamp, a removable plate e, which carries the lamp bulb or bulbs, is engaged and held in position by a pair of wire members a which are arranged substantially parallel with each other across the rear of the reflector band have their ends anchored at c to the peripheral portions of the reflector or to a ring secured to such portions. The plate e is placed over a gap in the reflector. The two wires are in one piece and are shaped to form finger-pieces d for convenient manipulation.
Patent GB-1269911-A (GB)
Title: Smoke detector
Inventor: SASAKI KOJU
IPC: G08B17/10
Filed: 1970-02-23
Abstract: 1,269,911. Ionization gas detectors. NITTAN CO. Ltd. Feb. 23, 1970 [April 4, 1969], No.8573/70. Heading G1N. In an ionization smoke detector, an alarm is produced when the detector is electrically damaged due to deterioration of inter electrode insulation i.e. decrease in resistances Rx and Ry, and lowering of gate impedance of an FET 30 whose gate is connected to the junction 11 of two series connected ionization chambers 10, 20 and deterioration of insulation between the lead conductors of the FET i. e. decrease in resistances Rx and Rz. The FET is of the type providing a drain current higher than a specific value when the gate voltage relative to the source voltage is zero (i. e. of junction type or of depletion mode), and an alarm circuit is connected to the output 13 and is operated by a current less than the specific value i.e. due to a decrease in Rz. An insulator supporting the junction 11 may then be connected to the source electrode. In order to provide an alarm when Ry decreases, an insulator supporting the junction 11 is connected to the drain electrode or a portion having the same potential as the drain electrode but not to the electrode 6 or the power supply terminal 9. Decrease in resistance Rx automatically provides an output at terminal 13. 1,269,926. Top-pan balance with annular weights. METTLER INSTRUMENTE A. G. Oct. 21, 1970 [Aug. 26, 1970], No.49985/70. Heading G1W. In a precision balance having a central knife edge bearing 5, a counterweight 7 and a pivotably mounted balance beam 6 which mounts an arm 11 carrying a measuring plate 12 to intercept a light path to indicate the measured weight in dependence on the inclination of the beam, a weighing pan 17 being carried with a parallel-guided suspension member 9 on an outer bearing 8 of the beam, a cam-operated switching device is provided for selectively switching weights 19-21, in the form of rings disposed in a horizontal plane above bearing 8 and preferably coaxial with the pan, between positions of loading and non-loading of the beam. The pan 17 may be supported on a carrier 16 such that it is displaced longitudinally outwardly from the beam; and a beam of light is provided by source 13, condenser 14 and lens 15 to pass through plate 12 at a mark corresponding with the measured weight. The loading and unloading of the weights, normally held by cantilever arms 18 in loading positions, is controlled by rotation of a setting knob 41 attached to cam-shaft 25 and fixed cams 26-28, 26<SP>1</SP>-28<SP>1</SP> which act to control lifting members 29-34, 29<SP>1</SP>-34<SP>1</SP> Leafsprings may be provided to define switch positions of the shaft 25, or alternatively this function may be performed by a switch cam (42) which is appropriately recessed as in Fig. 2 (not shown).
Patent GB-1327736-A (GB)
Title: Pulse amplifier
Inventor: SHIGAKI S
IPC: H03K5/02
Filed: 1972-02-24
Abstract: 1327736 Transistor switching circuits POST OFFICE 24 Feb 1972 [24 Feb 1971] 8623/72 Heading H3T A pulse amplifier for driving a capacitive load comprises: an emitter coupled pair of transistors TR 1 , TR 2 ; diodes RC 1 , RC 2 , RC 3 ; voltage supply terminals EC 1 , EC 2 ; and an emitter follower current supply switch TR 3 , the arrangement being such that positive input pulses turn on transistor TR 1  to render RC 2 , RC 3  conductive clamping the output to EC 2 , negative input pulses turn on transistor TR 2  to render RC 1  conductive clamping the output to EC 1 , and the rise time of the output pulse is reduced by conduction of switch TR 3  which provides current to the output. TR 3  is turned on by the change in potential at point b when TR 2  becomes conductive.
Patent GB-1103422-A (GB)
Title: Water-soluble azo dyestuffs containing at least one cyclobutane or cyclobutene residue and process for their manufacture
IPC: C09B62/491
Filed: 1965-03-01
Abstract: The invention comprises water-soluble azo dyes of one of the formulae <FORM:1103422/C4-C5/1> <FORM:1103422/C4-C5/2> wherein D represents the radical of a diazo component, K represents the radical of a coupling component, wherein D and/or K may contain one or more groups imparting solubility in water and one or two azo groups, R1 represents H, Cl or alkyl, R2 represents H or alkyl, X represents Cl or F, B represents one of the groupings -CONR2-SO2NR2-CH = CHCONR2 or -CHR2CHR2CONR2-and n represents 1 or 2.  They may be obtained by coupling a diazotized amine of one of the formulae <FORM:1103422/C4-C5/3> <FORM:1103422/C4-C5/4> with a coupling component of one of the general formulae <FORM:1103422/C4-C5/5> <FORM:1103422/C4-C5/6> wherein m1 and m2 represent 0 or 1, the sum of m1 + m2 being at least 1 and at most 2, at a temperature between about 0 DEG  and 120 DEG  C., in an aqueous or aqueous-organic medium, at a pH between about 3 and 10.  Preferred diazo components are those of the benzene, azobenzene or naphthalene series and preferred coupling components are those of the benzene, naphthalene, barbituric acid, pyrazolone or acetic acid arylamide series.  The dyes may be applied to fibrous materials of natural or regenerated cellulose or of natural or regenerated protein fibres by dyeing or printing processes to produce a variety of colours.  Examples are given for the production of the dyes.
Patent GB-1294233-A (GB)
Title: Systemic miticide and a method for controlling mites
Inventor: OKUDA ITSUKI
IPC: A01N41/06
Filed: 1970-02-24
Abstract: 1294233 Miticides KUMIAI KAGAKU KOGYO KK 24 Feb 1970 [24 Feb 1969] 8715/70 Heading A5E [Also in Division C1] A systemic miticide comprises a mixture of chloromethane sulphonamide and a fertilizer. The mixture may contain ammonium chloride, which is a by-product of the synthesis of the active compound, and enhances the activity of the mixture.
Patent GB-1248895-A (GB)
Title: Fluid actuated impact apparatus
IPC: E21B4/14
Filed: 1970-02-24
Abstract: 1,248,895. Percussive tools. BAKER OIL TOOLS Inc. 24 Feb., 1970 [9 May, 1969], No. 8740/70. Heading B4C. [Also in Division E1] Impacting means or hammer 28 is forced against and/or away from an anvil by a positive fluid pressure pulse wave generated in shock passage 35 and/or 36 when shuttle valve 37 is moved to prevent fluid flowing out of the outlet of the appropriate passage. As described the apparatus is used in drilling a well bore. When valve 37 closes one of the two passages 35, 36 the positive pressure wave travels up the passage to the inlet, and a negative pressure wave returns down the passage causing the valve to open the outlet from this passage and to close the outlet from the other passage. The two passages communicate with opposite sides of annular piston 41 of the hammer through ports 38 and 47 so that a pulse wave is alternatively applied to the opposite sides of the piston. Passage 35 is continued upwardly in an inner tube which extends part of the way up the drill string while passage 36 is connected to the annular space around the inner tube. Valve 37 comprises a pair of valves 37a, 37b in parallel, each end of each valve having an opening communicating with one of the passages and closable by a valve head 61 or 62. The valve heads of each valve are joined by a sleeve 63 so that they move in unison. The interior of each valve is connected to passage 23 in body 14. The anvil which is struck by hammer 28 is slidably mounted by means of a sleeve on body 14 so that when the bit connected to the anvil is off bottom ports in the body 14 are opened to bypass valves 37a, 37b.
Patent GB-293120-A (GB)
Title: Improvements relating to electric transformers
IPC: H01F29/02
Filed: 1927-03-31
Abstract: 293,120. British Thomson-Houston Co., Ltd., (General Electric Co.). March 31, 1927. Transformers. - In a transformer in which one winding 11 has an effective space 13 in the distribution of the turns due either to tappings being brought out at this point or to transpositions in the conductors in a winding consisting of several conductors in parallel, a space 14 is provided in the other winding so that the distribution of ampere turns in an axial direction is the same in both windings. In the case of a tapped winding, the space in the other winding is made opposite the tapping in most frequent use, or, if all the tappings are in frequent use, the space is extended over the part of the core covered by the part of the tapped winding which is cut out when operating on the minimum tapping.
Patent GB-711775-A (GB)
Title: Thermostatic control device
Inventor: BENTON WILFRED ERIC
IPC: G05D23/02
Filed: 1950-04-11
Abstract: 711,775. Ovens; gas and electric. FLAVEL & CO., Ltd., S. April 11, 1951 [April 11, 1950], No. 8927/50. Classes 39 (3) and 126 In an oven in which the heat sensitive portion of a thermostat is located within the cooking space a heat conductive element is arranged to lie in close proximity thereto. As shown a heat conductive element in the form of a cast iron plate 1 is mounted within the cooking space of an oven in close proximity to the tube R of a thermostat T. The plate is secured to the sheet steel oven roof S by nuts and bolts the feet 3 locating the plate away from the roof so as to leave a space through which hot gases can circulate. The plate is provided with a lug 7 having an aperture 8 in which the end of tube R is a sliding fit the tube being secured in position at its other end by means of a collar 9 mounted in an aperture in the oven wall.
Patent GB-1535378-A (GB)
Title: Rolled metal piston ring
IPC: F16J9/20
Filed: 1976-03-05
Abstract: 1535378 Rolling sections RAMSEY CORP 5 March 1976 8942/76 Heading B3M [Also in Division F2] A piston ring 24 has a cross-section as shown in Fig. 4 formed by passing an initially flat steel strip through seven sets of upper and lower profiled forming rollers the seventh set 120 also having horizontal rollers 128a, 128b. Holes 40 in the ring are punched after the forming operation.
Patent GB-105162-A (GB)
Title: An Improved Method for Preparing Black Colouring Materials.
Inventor: VIDAL HENRI RAYMOND
IPC: C09B49/04
Filed: 1916-06-26
Abstract: 105,162. Vidal, H. R. June 26, 1916. Sulphuretted dyes are obtained by heating with sulphur a mixture of p - aminophenol, or p-amino - o - or - m - cresol, with half its weight of resorcin or m - phenylenediamine; the products are soluble in alkali sulphides or hydrosulphites and dye cotton black shades. Specification 14132/97 is referred to.