baber/WOPTO huggingface dataset:
Patent GB-1304268-A (GB)
IPC: G09F9/35
Filed: 1970-12-11
Abstract: 1304268 Matrix displays STANDARD TELEPHONES & CABLES Ltd 11 Dec 1970 58935/70 Heading G5C [Also in Division H4] In a display device electrodes 4 disposed either side of a liquid crystal layer 1 apply a field to any selected one A of a set of parallel (row) strips of the layer to render it opalescent, and light is directed along a selected one B of a set of parallel (column) paths within the layer which intersect the strip regions, thereby providing a bright spot only at the selected row and column intersection 13. Such an arrangement is said to avoid cross talk which occurs in devices using X and Y addressing electrodes, where other parts of the selected row and column may also tend to modulate light which is simultaneously directed over the whole display. As described, a row of semi-conductor injection lasers 7 (AlGaAs or GaAsP for instance, providing visible light) are selectively operated to provide a collimated beam in the required column. If the light is not in the visible region, a phosphor layer is disposed over the device, e.g. an anti-stokes phosphor for infra-red. The number of lasers may be reduced by providing each one with a light deflector, e.g. a piezoelectrically actuated mirror, an electro-optic deflector, or, as described with reference to Fig. 2 (not shown), an arrangement comprising magneto-optic polarization switches and composite birefringent prism for providing four parallel beams per laser 7. At least one electrode is light transmissive i.e. transparent or in the form of fine wires. The electrodes may consist of two parallel sets of strips, or one set of strips and a continuous sheet, when at least one electrode is transparent. If both electrodes are transparent, a plurality of devices may be stacked to provide a three dimensional image, and the beam deflectors may then serve to select a particular device. The lasers may be scanned sequentially, or groups may be simultaneously activated, and the voltage applied to the lasers and/or the electrodes 5 is modulated, e.g. for half-tone effects.
Patent GB-1306134-A (GB)
IPC: H02P7/29
Filed: 1970-05-06
Abstract: 1306134 Control of DC motors SOC GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM) 6 May 1970 21918/70 Heading H2J In a D.C. motor control circuit having thyristor 5 for the motoring mode, and thyristor 15 for the braking mode, a capacitor 11 is common to the extinguishing circuits for both thyristors 5 and 15. The quenching circuit for thyristor 5 comprises coil 10, thyristor 12 and diode 13 as well as capacitor 11 which functions also in the quenching circuit, comprising coil 16, thyristor 18 and diode 19, for thyristor 15. The motor may be series wound, having field winding 2, or compound wound with winding 21, or shunt wound with the winding 2 replaced by a thyristor controlled extinguishing coil. A freewheeling diode 9 is provided, and the motor may be supplied by accumulators or fuel cells. The circuit is applicable to road or railway vehicles.
Patent GB-1306441-A (GB)
Title: Shirring of flexible tubing
IPC: A22C13/02
Filed: 1970-04-29
Abstract: 1306441 Shirring casings UNION CARBIDE CORP 29 April 1970 20687/70 Addition to 1127630 Heading A2B A self-sustaining stick of shirred and compressed flexible tubing having a straight bore, a substantially cylindrical outer surface and an ordered shirred pattern of pleats, has a plurality of spaced apart crests extending along its length, parallel to its longitudinal axis. In the embodiment shown an inflated flexible tubing 20 on mandrel 12 is shirred by shirring wheels 30 and then three crests 23, 23<SP>1</SP>, 23<SP>11</SP> are formed on the tubing 20 by passing it through a restraining passage formed by three spaced apart jaws 50, 50<SP>1</SP> (only two shown). The jaws are actuated by air cylinders 65. The device may comprise two or more than three jaws. The shirring may be done by belts or rolls.
Patent GB-1309952-A (GB)
Title: Colour photographic multi layer materials for colour development with  automatic masking
IPC: G03C7/333
Filed: 1970-05-07
Abstract: 1309952 Masked colour photographic silver halide material FILMFABRIK WOLFEN 7 May 1970 22126/70 Heading G2C A colour photographic multi-layer material comprises at least one emulsion layer having incorporated therein at least one silver halide and a mixture containing only one diffusionresistant colourless coupler and only one diffusionresistant azodyestuff automatic masking coupler, the colourless coupler having a reactivity or coupling speed differing from that of the masking coupler by not more than 50 per cent of that of the masking coupler. The or each emulsion layer may contain 0À2 to 2 moles of the coupler mixture per 4 moles of silver halide. The masking coupler may comprise 10-70 mole % of the coupler mixture. The colourless coupler may be derived from the same base coupler as the masking coupler, the base coupler having an active methylene group and the colourless coupler being obtained therefrom by substitution in the active methylene group by a group which produces a colourless derivative having a reduced reactivity compared to the original base coupler. The dyestuff formed from the colourless coupler during development may have a different structure to that formed from the masking coupler, but have the same or approximately the same pattern of absorption as the dyestuff formed from the masking coupler. Various methods may be used to determine the coupler reactivity (see Dissertation, Moscow, 1962 for Wilenski's method), The couplers used may be 1-(4'-phenoxy-3' -sulphophenyl)-3-stearylamino-4-(4"-hydroxy-2"- chlorophenylazo)-pyrazol-5-one and 1-(4'- phenoxy-3'-sulphophenyl)-3-heptadecyl -4-(4", 4'''-di-diethylaminodiphenylmethyl)-pyrazol- 5-one or 1-hydroxy-4-(2"-chloro-4"-hydroxyphenylazo)-2-naphthoic acid -2' -methyloctadecylamino-5'-sulphanilide and 1-hydroxy- 2-naphthoic acid =3', 5'-dicarboxyphenyl-4"- stearoylaminophenylamide. Reference has Àbeen directed by the Comptroller to Specification 1083049.
Patent GB-1311170-A (GB)
Title: Liquid measuring apparatus
IPC: G01F11/28
Filed: 1970-08-14
Abstract: 1311170 Mixing liquids in proportions FISHER-KARPARK Ltd 13 Aug 1971 [14 Aug 1970] 39165/70 Heading B1C [Also in Divisions B8 and D1] An apparatus for supplying detergent and bleach to a washing machine 2 comprises a tank 6" to which bleach is supplied via a float controlled valve 10", tanks 6, 6' to which detergents are similarly supplied via float controlled valves 10, 10', and means for effecting the supply to the washing machine. As the detergent tanks 6, 6' and their modes of operation are identical only the mode of operation of tank 6 will be described. This tank 6 includes an outlet valve 27 plug 28 secured to a piston rod 30 and movable to open valve 27 upon supply of air to cylinder 32 via valve 36 which is opened in response to a signal from trigger unit 44 upon the latter being actuated by an electrical control unit 60. The rod 30 also includes a peg 40 which, when the cylinder is actuated, engages rod 12 carrying float 14 to prevent that float dropping as detergent is supplied to the washing machine. An electrical connection existing between probe 20 and a selected one of probes 23, 24, 26 via the detergent will be broken when the level drops below the selected probe and thus the trigger unit 44 will cause closure of valve 36 and stop supply of air to the cylinder 32. The plug 28 will then return, e.g. by action of a spring to the closed position. Consequently detergent will again be supplied to the tank 6 via the valve 10. The sequence will be repeated when the control unit 60 again energises trigger unit 44. A trigger unit 44" when actuated by the control unit 60 effects opening of valves 36", and air is thus supplied to cylinder 32" to retract piston rod 30". A pin 40" on the rod engages the float rod 12" and prevents the float dropping with the bleach level. Valve 56 is opened simultaneously with the valve 36" by the trigger unit 44" and commences supply of water to the washing machine. Bleach is drawn from the tank 6" by the water passing through a venturi 50 until its level drops below the open end 48b of pipe 48a. The volume of bleach removed can be varied by pivoting the pipe 48a about a horizontal axis. The valves 36", 56 are held open for a predetermined time after supply of bleach has terminated in order that water may flush the venturi. The bleach tank, pipes and valves therefore are preferably coated with a non-corrosive material, e.g. a suitable plastics. In an alternative embodiment (Fig. 2, not shown) the supply of bleach from tank 6" is controlled in a manner similar to the supply of detergent from tank 6, and the probe (18") therefor is preferably formed of carbon.
Patent GB-1316353-A (GB)
Title: Method of model railway signal control
IPC: B61L5/18
Filed: 1970-05-12
Abstract: 1316353 Model railway control NORTH MORE & PARTNERS Ltd 9 Aug 1971 [12 May 1970] 22781/70 Heading B7N Track section A of a model railway, when energized e.g. via switch SW1, supplies energy to a locomotive in the section and also to signal light G (green) via diode D1. The positive supply to the base of transistor TR1 ensures that this remains cut off. When the section is do-energized lamp G is extinguished and the negative supply connection to the transistor base via resistors R1, R4, lamp G and diode D1 saturates the transistor and illuminates lamp R (red). The lamps may be replaced by solenoids operating signal semaphores.
Patent GB-1318208-A (GB)
Title: Hospital operating room lamp for laminar-linear airflow ventilation
IPC: F21S8/00
Filed: 1970-04-23
Abstract: 1318208 Lamps C C SCOTT 23 July 1971 [23 April 1970] 19476/70 Heading F4R A lamp for use in an operating theatre comprises concentric inner and outer ring members 36, 35 interconnected by radially extending arms 37, the arms supporting individual lamp holders 34. The connections between the arms and the ring members permit limited relative axial movement between the members under the control of a screw 40 to focus the light. The lamp has an open-work structure for use in a linear air flow system.
Patent GB-1320668-A (GB)
Title: Cartridge pencil
IPC: B43K21/00
Filed: 1972-03-08
Abstract: 1320668 Pencils CHUANG CHIN CHIN 8 March 1972 10806/72 Heading B6P A pencil of the kind comprising a tubular casing 3 in which cartridge writing units 1 are located, is formed with longitudinal slots 8 in the rear end of the casing 3, the slots defining therebetween resilient tongues 9 at least one of which is provided with an inwardly extending rim 10 to retain the rearmost unit 1. An annular member (12, Figs. 2, 3, not shown) of elastomeric material is inserted in the front end of the casing 3 to hold the units 1 by friction. In the embodiment shown, four slits 8 are provided to form four tongues 9, only two of which, 9a, 9c, are provided with rims 10. The remaining two tongues are shorter so that a unit 1 can be pushed past the rims 10.
Patent GB-1328134-A (GB)
Title: Drill bits for hydraulic jet drilling
IPC: E21B7/18
Filed: 1970-08-01
Abstract: 1328134 Jetting drills GULF RESEARCH & DEVELOPMENT CO 1 Aug 1970 13031/73 Divided out of 1328132 Heading E1F Downwardly convergent stand off elements 34c and nozzles 32a are so mounted in to extend down from or through a bottom closure of a hollow body 12 of a jetting drill that, in use of the drill, high velocity hydraulic jets issue from the nozzles to cut grooves in the bottom of a borehole 'being formed by the drill and the resultant inter groove ridges are broken off by the radial pressures exerted on them by the stand off elements. Preferably the elements are part spheres or have downwardly tapered side faces. The nozzles are so located as to cause the cutting in a borehole a central hole and grooves concentric of this hole, the outermost groove being of larger diameter than the bit. The stand off elements are limited to elements other than elements rotatably mounted in the bottom closure of the body. Specifications 1328132 and 1328133 are referred to.
Patent GB-1328415-A (GB)
Title: Pneumatic controller circuit
IPC: F15C4/00
Filed: 1971-04-28
Abstract: 1328415 Fluid-pressure servo-motor systems J C ECKARDT A G 28 April 1971 11945/71 Heading G3P The signal pressure differential used to modulate a differential pressure amplifier 19 is derived from two pressure dividers 15, 17 and 16, 18 to the resistances of which the actual value X, the set value W and the output pressures A+, A- are applied. Because A+ increases with an increase in X while A- decreases, the sensitivity of the amplifier is theoretically doubled. Input signals E+ and E- from the pressure dividers are applied to diaphragms 2 which have their opposite sides vented to atmosphere and operate ball closures 3 between a common feed duct 4 and the two output lines. The resistances 15, 16 may be adjusted to alter the proportional band and a PD controller may be obtained by applying the output pressure A- through a time lag element 21 to the resistance 17 or the output pressure A+ through a similar element to the resistance 18. If this arrangement is reversed, e.g. A- is applied through a lag element to the resistance 18, a PI controller is obtained.
Patent GB-1329602-A (GB)
Title: Method of and apparatus for measuring moisture content
IPC: G05D22/02
Filed: 1971-07-30
Abstract: 1329602 Automatic control of humidity SIRA INSTITUTE 30 July 1971 [31 July 1970] 23678/70 Heading G3R [Also in Division G1] The equilibrium relative humidity (ERH) or moisture content of an object e.g. a moving web of material 10, is measured by deriving first and second signal corresponding respectively to the temperature of the object and the wet bulb temperature in the adjacent atmosphere and combining these two signals. The wet bulb temperature corresponds to that of a wet wick 13 in the immediate vicinity of the web. The temperature sensors 14, 15 may be thermocouples, thermistors, or thermopiles receiving radiation emitted from the wick and web, or may be directly contacting thermocouples or thermistors. In one form of the apparatus the two outputs are simply subtracted one from another at 16 to give an output 17 indicative of the ERH of the web. If greater accuracy is required, a more complex linear relationship between the two signals is derived, Fig. 4 (not shown). In another embodiment, Fig. 5 (not shown) a single detector (34) monitors both wet wick and web temperatures. So as to minimise errors due to internal radiation and drift. The wick forms one half (37) of a sectored disc whose other half (36) is unobstructed. The disc is located between the sensor (34) and the web and is driven via a "geneva" coupling. Thus the web and the wick are presented alternately to the sensor for a fixed period of time and the two signal components are separated, routed to storage amplifiers, and subsequently compared. The apparatus may be applied to controlling the ERH of a web issuing from a drying cabinet 11. The calculated ERH is compared with a desired value at 30 and any discrepancy is corrected either by altering the web speed or by altering the cabinet temperature.
Patent GB-1332700-A (GB)
Title: Stabilised stannous salt compositions
IPC: C07C53/126
Filed: 1971-11-29
Abstract: 1332700 Stabilized stannous carboxylates BRITISH TITAN Ltd 29 Nov 1971 [24 Dec 1970] 61351/70 Heading C2C [Also in Divisions B1 and C3] A stabilized stannous salt composition comprises a stannous salt of a carbocyclic or aliphatic carboxylic acid in admixture with 4-tertiarybutyl catechol and an alkylhydroquinone of structure wherein R represents a C 1  to C 6  alkyl group and R<SP>1</SP> a hydrogen atom or a, C 1  to C 6  alkyl group. Preferred components are 2,5-ditertiary butyl hydroquinone and a stannous salt of an aliphatic monocarboxylic acid containing from 6 to 18 carbon atoms especially stannous octoate. The composition may be prepared by mere mixture of the components, where necessary in an oxygenfree atmosphere. Stannous salts specified are those having the following anions: itaconate, glycolate, diglycolate, 12-hydroxy stearate, lactate, levulinate, linoleate, ricinoleate, oleyl sarcosinate, salicylate, sebacate, sorbate, succinate, thioglycolate, 3,5,5-trimethylhexoate, abietate, acetate, trichloroacetate, p-aminobenzoate, benzoate, butyrate, caprate, citrate, cyanoacetate, formate, 3-ethylhexoate, oleate, naphthenate, gluconate, stearate, tartrate, caproate, myristate, palmitate, laurate, oxalate and octoate. Examples illustrate the stability of stannous octoate compositions against degradation in air. The compositions, especially stannous octoate ones, are particularly useful as catalysts in the manufacture of polyurethanes (see Divisions B1 and C3). Reference has been directed by the Comptroller to Specification 1,136,025.
Patent GB-1337273-A (GB)
Title: Interferometer thickness gauge
IPC: B21B38/04
Filed: 1971-04-19
Abstract: 1337273 Interferometer thickness gauge TRADE & INDUSTRY SECRETARY OF STATE FOR 19 April 1971 [9 Feb 1970] 6181/70 Heading G1A In a device, for measuring the thickness of strip of steel 1 moving over and in close contact with a roller 3, wide band infrared light from a mercury vapour lamp 7 is directed by a beam divider 9 (formed of polyethylene-terephthalate) along two paths as shown to be reflected off the roller 3 and the strip 1 and subsequently recombined by the divider 9 and passed to a golaycell 13, the two path lengths being equalised by moving a mirror 11 until all the radiation reaching the detector is in phase. The position of the mirror in the "in-phase" position provides a measure of the strip thickness. The mirror 11 is oscillated in a direction normal to its plane surface by a translator/transducer unit 14. An output from the translator/transducer unit is fed to an X input of an X-Y recorder 16 and the golay-cell output is fed to the Y input of the recorder 16 to produce a trace as shown in Fig.3. The X - co-ordinate on the screen is marked in dimension of thickness so that a continuous measurement is provided. The mirrors 17 and 18 are curved to focus the light beams on the axis of curvature of the roller and to reduce the scattering of the light beam.
Patent GB-1342669-A (GB)
Title: Apparatus for tensioning yarn wire cord or the like
IPC: B65H59/04
Filed: 1972-09-04
Abstract: 1342669 Braking packages W H K PRODUCTS Ltd 4 Sept 1972 [4 Sept 1971] 41351/ 71 Heading D1J The spindle 1 for the spool 3 and brake wheel 13 is mounted in a housing 2 that is pivoted at 5. A pivot pin 9 couples a brake control lever 8 to the housing 2. The lever 8 rests on a roller 15 that is manually adjustable in the direction of the arrow 22. The apparatus includes means 23, 24 for applying an adjustable pressure loading to the spindle 1 about the pivot 5. As shown this additional pressure loading may be a spring 23 under the control of a screw 24 but it may, alternatively, be a piston and cylinder device. When the roller 15 is vertically in line with the pivot pin 9, the roller 15 supports all the weight created by the spool 3 and the means 23, 24 and the brake pad does not apply a braking force to the brake wheel 13. When the roller 15 is moved to the left of the setting shown the lever 8 tends to rock clockwise and so actuate the brake pad 14, the degree of braking depending upon how far the roller 15 is moved to the left.
Patent GB-1345965-A (GB)
Title: Non-woven fabrics
IPC: D06P3/82
Filed: 1972-03-21
Abstract: 1345965 Printing non-woven materials A G STANDARD CO Ltd 21 March 1972 13133/72 Heading D1B Non-woven fabrics, e.g. blends of crimped nylon and crimped viscose are successively printed with a plurality of dye compositions, each composition being allowed to dry before a subsequent application. Printing may be effected silk screen or -roller processes, the dye composition preferably comprising a butadiene copolymer, an acrylic polymer and a pigment.
Patent GB-1354631-A (GB)
Title: Disc brakes
IPC: F16D65/14
Filed: 1972-01-24
Abstract: 1354631 Spot-type disc brakes; fluid-pressure release; slack adjusting AUTOMOTIVE PRODUCTS Ltd 14 Dec 1972 [24 Jan 1972] 3275/72 Heading F2E In a spot-type disc brake which may be applied by a fluid-pressure-operated piston or by spring means acting on the same piston, and released by separate fluid pressure acting on at least one brake-release piston, the brake release piston or one of them is also arranged to be acted on by the first-mentioned fluid pressure to oppose partially the action of the spring means. As shown, brake pad 19 may be applied to disc 10 by pressure fluid supplied at 29 to the inside of brake-applying piston 18, pad 21 being applied by reaction through axially-movable disc 10 and fixed caliper 11 or fixed disc 10 and movable caliper 11. Alternatively, in the absence of fluid pressure at 30 and 31 acting on release pistons 27 and 26 respectively, Belleville washers 23 apply the brake through piston 26, integral sleeve 33, stem 32 threaded within it, these last two members constituting a push rod 22, frusto-conical surfaces 36 on stem-head 35 and 37 in piston 18, and piston 18. If, in the absence of fluid pressure at 30 and 31, fluid pressure is supplied at 29 to actuate piston 18, then the brake will tend to be applied both by fluid pressure and spring action: but the spring force is partially overcome by pressure at 29 communicating also with the left-hand end of a reduced portion 28 of brake-release piston 27. Thus the risk of excessive load is reduced. With fluid pressure supplied at either 30 or 31, the spring force is overcome and the brake may be applied and released by admission of fluid pressure to, and release from, piston 18. Slack adjustment.-Piston 18 is prevented from rotating by peg 45, sleeve 33 is normally prevented from rotating by engagement of non- circular extension 47 in plate 48, and stem 32 is normally prevented from rotating by engagement of surfaces 36, 37. During normal fluidapplication of the brake with piston 26 held by fluid pressure at 30 or 31, a spring 39 urges stem 32 to follow piston 18 until the clearance between screw-threads 34 is taken up. If piston 18 continues to move, surfaces 36, 37 separate, so spring 39, now under compression, is able to rotate stem 32 through thrust bearing 42, thus lengthening push rod 22 until surfaces 36, 37 again meet. Manual release.-When the brake is being applied by Belleville washers 23, inward movement of piston 26 &c. is limited by abutment against piston 27. If no fluid pressure is available at 30 or 31 and if push rod 22 is not at its minimum length, the brake may be released by removing plate 48 and rotating sleeve 33, to shorten push rod 22 and consequentially retract piston 18. Re-setting.-Before replacing worn brake pads, piston 18 may be retracted by rotating sleeve 33 as above. Brake-release piston 26 may be omitted, the other brake-release piston 27 being either fixed to sleeve 33 or co-operating with an abutment thereon. In Fig. 2 (not shown) two axiallyslidable brake discs are provided.
Patent IL-103119-A (IL)
Title: Diamond pellets and saw blade segments made therewith
IPC: B23D63/06
Filed: 1992-09-09
Abstract: A method for making handleable, strong, discrete, metal-clad abrasive pellets comprises the steps of :   (a) spraying onto a bed of gas-fluidized abrasive particles a slurry of metallic powder, a binding agent, and a volatile solvent until substantially all the abrasive particles are coated with at least about 20 wt-% of said metallic powder;   (b) recovering said metal powder coated abrasive particles; and (c) heating said recovered coated particles under conditions to form a sintered continuous metal coating enveloping said abrasive particles.   Another aspect of the invention comprises a method for making saw blade segments from metal-clad abrasive particles. Preferably, the weight percent of abrasive in each pellet is from about 1 weight percent to about 10 weight percent and the metal coating weight percent ranges from about 99 weight percent to about 90 weight percent. Pellets devoid of abrasive particles; i.e., "dummy" pellets can be included in the mold cavity in order to regulate the concentration of abrasive particles in the saw blade segment.