baber/WOPTO huggingface dataset:
Patent GB-1144373-A (GB)
Title: Pressure multiplying means
IPC: B60T13/14
Filed: 1966-10-05
Abstract: 1,144,373. Fluid-pressure brakes. JERGENS TOOL SPECIALTY CO. 5 Oct., 1966 [21 Jan., 1966], No. 44479/66. Heading F2F. [Also in Divisions B3 and F1] A pressure multiplying device 10 for insertion in the pressure line 18, 19, 20 leading to clamping devices 11 or brake-shoe slave cylinders (not shown), comprises large and small integral pistons 35, 36 slidable in respective cylinders 32, 34, a valve 46 disposed in a passage 40 passing through the pistons, and an end cap 29 for the cylinder 32 having a projecting cylindrical portion 45 which enters a recess 41 in the large piston when the pistons are at the beginning of their stroke. To actuate the clamps or shoe cylinders, a valve 24 is operated to direct air to the space above liquid in a reservoir 21 connected to the line 20. Liquid thus flows into the cylinder 32 and passes without change in pressure through the passage 40 to an outlet 28 connected to the line 19, since the valve 46 is held open by its rod 50 abutting the cap 29. As pressure builds up in the recess 41 the pistons commence to move, whereby the valve 46 closes and the cylindrical portion 45 leaves the recess 41, so that pressure is applied to the entire cross-section of the piston 35 to intensify the pressure of liquid expelled from the cylinder 34. To return the pistons the valve 24 is changed over to direct air through a port 60 communicating with the annular chamber 38 behind the piston 35 while exhausting air from the reservoir 21.
Patent GB-1479059-A (GB)
Title: Sulphonated coumarin dzes
IPC: C08K5/00
Filed: 1974-10-15
Abstract: 1479059 Sulphonated coumarin dyes SANDOZ Ltd 15 Oct 1974 [17 Oct 1973] 44540/74 Heading C4P Novel sulphonated coumarin dyes have the formula in which either R 1  signifies an unsubstituted (C 1-4 ) alkyl radical or a (C 1-4 ) alkyl radical substituted by chlorine or cyano, R 2  signifies a hydrogen atom, an unsubstituted (C 1-4 ) alkyl radical or a (C 1-4 ) alkyl radical substituted by chlorine or cyano, or, R 1  and R 2 , together with the nitrogen atom to which they are bound, form a pyrrolidine, piperidine or morpholine ring, and R signifies a group of Formula (a) or (b) in which R 3  signifies a condensed further unsubstituted pyrimidine or pyridine ring; a condensed pyrimidine or pyridine ring further substituted by a halogen atom or an (C 1-4 ) alkyl radical; a condensed further unsubstituted naphthalene or benzene ring; or a condensed benzene ring further substituted by a total of up to two substituents selected from up to two halogen atoms and/or (C 1-4 ) alkyl or (C 1-4 ) alkoxy groups, and/or one nitro, R<SP>1</SP>-CO- or R<SP>1</SP>-CO-NH- group, where R<SP>1</SP> signifies a (C 1-4 ) alkyl radical, and M signifies a hydrogen ion or a cation equivalent. The compounds may be used for dyeing natural or regenerated cellulose, basically modified polypropylene, polyurethanes or polyamides in the form of loose fibre, yarn or fabric, as well as for spin dyeing plastics, and for lacquers and colour printing preparations.
Patent GB-894489-A (GB)
Title: Improvements relating to indicator boards
IPC: G09F7/06
Filed: 1960-12-29
Abstract: 894,489. Indicator boards. WASSELL ORGANIZATION. Inc. Dec. 29, 1960 [Jan. 14, 1960]; No. 44626/60. Class 3(2). In an indicator board formed from channel strip 10 as described in Specification 876,900, each strip has a peg attached to it by an elastic cord 21, the cord being fastened through holes 23, passed along the rear of the channel 11, and through a hole 22 to the front of the board.
Patent GB-1478112-A (GB)
Title: Electrical steels
IPC: C21C7/10
Filed: 1973-09-24
Abstract: 1478112 Silicon-free steel BRITISH STEEL CORP 24 Sept 1974 [24 Sept 19731 44702/73 Headings C7A and C7D [Also in Division B3] Non silicon steel for electromagnetic applications containing 0À35-0À9% Mn and less than 0À05% Si with properties equivalent to conventionally prepared steels containing up to 2% Si is made by subjecting conventionally refined i.e. open hearth basic oxygen or other steel to vacuum degassing to reduce the carbon content to 0À02% or less, adjusting the P contents to 0À05-0À15% by the addition of, say, ferrophosphorus, followed by casting and hot-rolling at a finishing temperature of 1550-1850F. Primary cold-rolling to within 5-15% of final gauge is followed by a non- decarbonizing anneal in a box furnace at 1220- 1300F in a 4% hydrogen/nitrogen mixture to keep a 'bright' surface before finally cold-rolling to size. Laminates for the cores of electrical machines may be machined or punched out, and after stacking, a further decarbonizing anneal may be given to further improve the magnetic properties. A typical steel contains 0À004- 0À02%C 0À35 - 0À90%Mn 0À07 - 0À15%P 0À01 max Al  0À04 max Oxygen Bal Iron and unavoidable impurities.
Patent GB-1027558-A (GB)
Title: Improvements in waveform recognition apparatus
IPC: G06K9/20
Filed: 1964-11-04
Abstract: 1,027,558. Automatic character readers. NATIONAL CASH REGISTER CO. Nov. 4, 1964 [Dec. 5, 1963], No. 44931/64. Heading G4R. In a character reader a waveform is recognized by being sampled in a tapped delay line, the output of each tap being available in true and inverted form at corresponding pairs of output terminals and applied to a series of recognition networks, one for each possible character, each having a series of resistors connected to certain terminals, the resistors and terminals being so chosen for each network that it produces a maximum negative signal for the corresponding character and a positive signal for any other. The terminals t2-t8 give the true signals present at these points in the delay line and terminals t<1>2-t<1>8 give inverted equivalents. If the character is " 0 " the waveform is as shown in full-line. There are large positive signals at t2 and t8. The inverted signals t<1>2 and t<1>8 are connected to output 10 via diodes and resistors 12 and 14. Large negative signals at t1 and t7 are connected to output 10 via resistors 11 and 13. The resistors may be inversely proportioned to the amplitude of the signal at the corresponding terminal and directly proportional to the root mean square of the amplitudes on all taps. If the character is " 1 " the waveform is as shown by the dash-line. Of the four terminals connected to the " 0 " network, three (t1, t<1>2 and t7) have zero output, but terminal t<1>8 has a fairly high negative signal. This would give a false response. The negative signal is removed by connecting to output 10 terminals t<1>4, t<1>5 and t6, all of which have positive signals through resistor-diode circuits 15-17. The resultant signal at 10 is therefore positive. Other resistor-diode circuits 18-22 are provided to avoid confusion with other characters, the diodes serving always to pass a positive signal and override any negative signal which may be derived through one of the plain resistor connections. If the positive signal through the diodes is insufficient other resistordiode circuits may be added as at 23 in parallel with plain resistor connections.
Patent GB-972507-A (GB)
Title: Improvements in or relating to electrical resistance furnaces
IPC: F27B9/06
Filed: 1961-12-15
Abstract: 972,507. Electric tubular resistance heater connections. SVENSKA KULLAGERFABRIKEN A.B. Dec. 15, 1961 [Dec. 17, 1960], No. 44992/61. Heading H5H. A tubular resistance heating element has the supply connection to at least one end constituted by a plurality of integral tongues which have radially outward extension. The tongues, which may be formed by slitting the end of the tube, may extend directly in the radial direction (Fig. 3, not shown), or be bent back parallel to the tube (Fig. 2, not shown), with an optional further radial extension thereafter, 15, Fig. 1a. Articles 16 to be heated pass through the furnace tube 11, which is provided with a supply connection 12 at one end, and conductive ring contact 14 to the tongue ends at the the other end, at which the articles are discharged.
Patent GB-1307788-A (GB)
Title: Disc brake
IPC: F16D55/00
Filed: 1971-09-28
Abstract: 1307788 Mounting spot-type disc brake calipers; torque-taking supports BENDIX CORP 28 Sept 1971 [29 Sept 1970] 45143/71 Heading F2E A sliding-caliper spot-type disc brake having a single disc 12, Fig. 1, and a single friction element 40 or 42, Fig. 2, engageable with each side of the disc, has a stationary torque-taking support 20, Fig. 1, which supports the caliper 18, 36, 38 and is divided into three members-an inner member 44 secured to a vehicle axle flange by bolts 46, and a pair of arms 48, 50, shown in detail in Figs. 5 and 4 respectively. The purpose of dividing the torque-taking support into three members is to enable each of its arms 48, 50 to be pre-assembled with the caliper (and thus with the brake structure), by pins 22, 24 and springs 78, 80 respectively, and to enable the inner member to be pre-fitted to the axle flange. On vehicle make-up, the brake is fitted by simply lowering the brake structure over the disc 12. Smaller pins 62, 64 located in arms 48, 50, respectively slide down in grooves 65, 67 respectively provided in the sides of inner member 44. When the lower ends of arms 48, 50, are located opposite holes in flat outer edges 54, 56, of inner member 44 respectively, bolts 58, 60, respectively are inserted and tightened. The caliper is slidably supported by engagement of the two pins 22, 24 (which are secured to it), in recesses 66, 68 respectively provided in arms 48, 50 respectively. The caliper is retained on the torque-taking support on one side by the anti-rattle spring 78, Fig. 5, whose bifurcated end 82 is engaged by fixed boss 74 and projection 70 and whose end 84 urges pin 22 radially inward. The anti-rattle spring 80, Fig. 4, on the other side urges pin 24 downwards. The caliper embodies twin cylinders 30, of which only one is shown in Fig. 2, each accommodating a piston such as 32 and being pressurized at 34. Friction element 42 is applied by reaction.
Patent GB-1488041-A (GB)
Title: Lamp cleaning equipment for motor vehicles
IPC: B60S1/60
Filed: 1974-10-18
Abstract: 1488041 Vehicle headlamp and windscreen cleaning systems BAYERISCHE MOTOREN WERKE AG 18 Oct 1974 [19 Oct 1973]  45233/74 Heading A4F In a motor vehicle headlamp and windscreen cleaning system, the switching control is such that (a) the lamp cleaning equipment will operate at the instant when the lamp or lamps are switched on only when the windscreen cleaning equipment has been previously operated since the lamp cleaning equipment was last operated, and/or (b) the lamp cleaning equipment will operate at the instant when the windscreen cleaning equipment is operated, at a time when the lamps are already on, provided that a predetermined interval has elapsed since the last operation of the lamp cleaning equipment. The lamp cleaning equipment comprising wiper and washer motors 21, 22 and 28 is energized in the first manner (a) by closure of the ignition switch 15 and closure of a switch 1 to  apply a negative voltage to a terminal 7 of an electronic control unit 8 to charge a capacitor (C 1 ) Fig. 2, (not shown) via a resistor (R 1 ) and to maintain a transistor (T 1 ) non-conducting. On release of the switch 1 the transistor (T 1 ) and a further transistor (T 2 ) conduct to operate a relay 16 to engage contacts 18, 18' to energize the wiper and washer motors 21, 22, 28 for a period determined by the time of discharge of the capacitor (C 1 ) via resistors (R 2 , R 3 ). Alternatively the lamp cleaning equipment is energized in the second manner (b) after closing switch 15, by closure of a switch 13 to switch on the headlamps 11, 12 to apply a positive voltage to a contact 10. This voltage will render the transistors (T 1 , T 2 ) conducting to energize the wiper and washer motors only if a silicon controlled rectifier (Ty) has been rendered conducting by the application of a negative voltage to the terminal 7 by previous operation of the switch 1 to energize windscreen cleaning equipment 30. De-energization of the relay 16 renders a further transistor (T3) conducting for a period determined by the time of discharge of a further capacitor (C 2 ), during which period the relay 16 cannot be energized by operation of the switch 1 again.
Patent GB-1020887-A (GB)
Title: Educational booklet
IPC: G09B3/04
Filed: 1964-11-10
Abstract: 1,020,887. Educational appliances. W. J. GAGE Ltd. Nov. 10, 1964 [Dec. 21, 1963], No. 45838/64. Heading G5G. An educational device comprises a paper sheet with at least one visual problem 2 imposed thereon, an answer 4 imposed on the sheet in a first colour over which is superimposed a mask 5 in a second colour complementary to the first colour to substantially obscure the answer, and a transparent filter 7 in the second colour which when held over the answer and mask obscures the mask and accentuates the answer. The sheets may be formed into a book and a pocket fitted on the outside to hold the filter. The complementary colours used may be red and green or blue and orange.
Patent GB-1382743-A (GB)
Title: Clip-type terminal for insualted conductors
IPC: H01R4/24
Filed: 1972-10-05
Abstract: 1382743 Terminals RELIABLE ELECTRIC CO 5 Oct 1972 [6 Oct 1971] 45879/72 Heading H2E A clip-type terminal (Fig. 1) for engaging an insulated solid conductor has a body 10 with a parallel-sided notch 11 communicating with a narrower slot 13 preferably parallel-sided. The notch and slot divide the body into resilient arms cantilevered from a common base 9. The bottom of the notch 11 (Fig. 3) has opposed edge portions 24, 25, that intersect the sides of the notch at angles not greater than 90 degrees to provide cutting edges 40, 41, for slicing the insulation from an insulated conductor 26, 27, that is forced from the notch into the slot. The slot 13 may be formed by shearing or slitting, its width being controlled by subsequently upsetting or coining in a lower region 17. The slot may communicate with an aperture 12 made to give the resilient arms 14, 15, 16 greater compliance and to maintain the sides of the slot 13 more nearly parallel when the wire is inserted. The terminal may have two slots 13 with corresponding notches 11 and openings 12, defining two outer arms 14, 16 and a centre arm 15 wider than the outer arms. The notches 11 may be parallel-sided or tapering. The terminal may have a tongue 23 for a soldered or wirewrapped connection and a tab 22 for securing to a holder or board. A boss 44 may be provided for location of the terminal in a tool of known type. Reference has been directed by the Comptroller to Specifications 1,317,426, 1,313,993 and 1,030,235.
Patent GB-1132431-A (GB)
Title: Improvements in and relating to filter apparatus
Inventor: FLOYD TERENCE JOHN
IPC: B01D29/11
Filed: 1964-11-11
Abstract: 1,132,431. Filter system. SERCK R. & D. Ltd. 11 Nov., 1965 [11 Nov., 1964], No. 45912/ 64. Heading B1D. Incoming fluid is switched from one filter or pair of filters to another by a pressure-responsive coanda device, and filtered fluid leaving the filter(s) on forward flow is partly diverted in reverse direction through the remaining filter. In Fig. 2, fluid is directed into passage 5 or 6 by pressure and suction transmitted through ducts 28, 29 which open to apertures 30, 31 in a cylinder 32 around which is generated a vortex which automatically switches from one side to the other continuously. In Fig. 1 (not shown), the coanda comprising nozzle (7) responds simply to clogging of one filter to switch flow to the other. Figs. 3 to 7 (not shown) illustrate systems in which two out of three filters are on filtering flow while the third is backwashed. Fig. 4 illustrates a tristable coanda which is controlled as in Fig. 2 by pressure transmitted through ducts (42, 43, 44) which lead to the downstream junction (38). Fig. 5 illustrates how the ducts may open into the cylindrical junction (38) at positions adjacent the main filtrate passages and circumferentially spaced therearound. Figs. 6, 7 illustrate an alternative in which the ducts open on to the flat faces of a triangular sectioned probe in the junction (38). Delay chambers (45, 46, 47) in the ducts determine the period of the switching action.
Patent GB-1123071-A (GB)
Title: Improvements in or relating to the treatment of natural or synthetic fibres
Inventor: BARBER ALAN LESLIE
IPC: D06L4/75
Filed: 1964-11-12
Abstract: The contamination of natural and synthetic fibres e.g., cotton textile materials and cellulosic fibres intended for use in the production of surgical dressings and in paper-making, by metals, e.g., copper, iron and manganese, is controlled by subjecting the fibres to a kier boil stage with an aqueous alkaline liquid containing an organic sequestering or chelating agent having the formula CH2 OH (CH OH)a COOH in which a = 5 or 6, or an alkali metal salt thereof, e.g. sodium heptonate, the kier boil stage preceding or accompanying a bleaching stage for the fibres. 0.1% by weight of sequestering agent based on the weight of the processing liquor may be used.  The bleaching agent may be hydrogen peroxide or sodium perborate and the solution may also contain sodium carbonate and an alkali metal silicate.
Patent GB-1408607-A (GB)
Title: Hydraulic valve means
IPC: F15B13/042
Filed: 1972-10-06
Abstract: 1408607 Fluid-pressure control systems CESSNA AIRCRAFT CO 6 Oct 1972 46107/72 Heading G3P A main control valve 23 controlling flow between a pressure source 45 and a double-acting motor 22 has a spring-loaded spool 70 which is positioned according to the fluid-pressure admitted to one of the end chambers 81, 82 by a remote manually-actuated pilot valve 22 having a spool 90 which controls the flow between a pressure source 62 and output ports 30, 31 that are connected to the end chambers. Spool 90 has grooves 93, 94 which act to meter the flow to and from the output ports which are respectively connected to the source 62 or drain. Spool 70 is moved by the pressure admitted to the relevant end chamber, the other being connected to drain, and takes up a position in which the fluid-pressure is balanced by the spring-loading 85, or 85 and 86 if the spool moves more than a predetermined distance. Both the main valve and pilot valve are one of a number of similar valves in a block. In a modification the pilot valve spool has a check valve therein which allows a greater pressure to be fed to the main spool to move it to a "float" position. In another modification the pilot valve spool is held in end positions by detents and is moved back to neutral position when the motor piston reaches the end of its stroke and actuates a telemotor which acts on the spool to over-ride the detents. In a further modification the pilot valve is connected to the main fluid pressure source via a pressure reducer.
Patent GB-1179551-A (GB)
Title: Improvements in or relating to Sterile Cabinets
Inventor: FIRMAN JACK EDWARD
IPC: A01K1/035
Filed: 1965-11-03
Abstract: 1,179,551. Housing animals. MICROFLOW Ltd. 31 Jan., 1967 [3 Nov., 1965], No. 46677/65. Heading A1M. A structure for housing animals on which infective tests are to be carried out is adapted (a) to prevent accidental infection from entering the structure or (b) to prevent deliberately introduced infection from contaminating the atmosphere outside the structure. The structure has a number of compartments 4 each of which has a front wall in the form of a grille 18 through which air can enter or leave the compartment. All the compartments communicate with a duct 16 which in turn communicates with the external aid by way of filtering means 8, 12, 14, 15, the air flow being effected by a fan 10. The direction of air flow and position of the filters with respect to the fan can be adjusted so that either (a) the incoming air is filtered and the compartments 4 are maintained above atmospheric pressure (Fig. 1) or (b) the outgoing air is filtered and the compartments are maintained below atmospheric pressure (Fig. 3, not shown). In Figs. 1 and 3 the compartments are in a stack constituting a mobile self-contained structure. In Fig. 2 (not shown) separate compartments are connected to different points in a filtered-air pipe line. The compartments may be air conditioned and illuminated.
Patent GB-1274955-A (GB)
Title: Light-conducting glass fibres and production thereof
IPC: G02B6/028
Filed: 1969-09-23
Abstract: 1,274,955. Optical fibre. NIPPON SELFOC K.K. 23 Sept., 1969 [28 Sept., 1968], No. 46810/69. Heading C1M. A light conducting glass fibre comprises at least two kinds of cations, the concentrations of which vary within the fibre such that in any cross-section perpendicular to the central axis of the fibre the refractive index decreases progressively outwards from the central axis, the rate of decrease of the refractive index being less in the vicinity of at least one axial end face of the fibre than in other parts of the fibre. The fibre may be formed by varying the fibre dimension, e.g. by drawing, after carrying out any ion exchange necessary to set up the abovementioned refractive index distribution. Alternatively, the ion exchange may be carried out to different extents in different regions of the fibre, e.g. by varying the time of molten salt contact or the contact temperature. For fibres drawn upwardly from a melt, the drawing speed, cooling speed or temperature of the glass may be varied. For drawing out a fibre from a longer fibre, the heating thereof may be varied along the length of the fibre.
Patent GB-1130061-A (GB)
Title: Improvements in or relating to dehydrated foodstuffs and process for preparing same
Inventor: TRUCKENBRODT HERBERT
IPC: A23L19/00
Filed: 1966-10-20
Abstract: 1,130,061. Drying food. CORN PRODUCTS CO. 20 Oct., 1966 [29 Oct., 1965], No. 46904/66. Heading A2D. A dehydrated foodstuff having a rapid reconstitution time in boiling water contains 8 to 75% of sodium chloride and 1 to 10% moisture, both based on the total weight of the dehydrated foodstuff. The foodstuff is cooked either before or after impregnation with sodium chloride and then dried by conventional methods, such as air drying or freeze drying. Foodstuffs exemplified are leeks, carrots, cabbage, cauliflower, green beans, green peppers, peas, onions, potato, beef, and chicken. In one example salted onions containing additionally monosodium glutamate are, after partial dehydration, finally dried by toasting. The products of the invention may be incorporated in soup mixes.
Patent GB-1055878-A (GB)
Title: Improvements in or relating to electrical welding apparatus
Inventor: WALES MICHAEL
IPC: B23K11/24
Filed: 1962-12-12
Abstract: 1,055,878. Welding by pressure. MARCONI CO. Ltd. Oct. 21, 1963 [Dec. 12, 1962], No. 46910/62. Heading B3R.  A monitoring circuit charges a condenser in accordance with the current input to a weld and compares the condenser voltage with a reference voltage to obtain an indication as to whether a satisfactory weld is made. Such indication may be one of a series of lamps, a gong or bell or an automatic control of the welding current may be effected. In response to an initiating pulse from the timer of an A.C. resistance spot welding machine relay B energizes and charges condenser K2 at an adjustable rate. When after the weld is completed the voltage of condenser K2 reaches a predetermined adjustable value a triode 6 conducts and relay A energizes and releases relay B. Condenser K1 is charged during welding by a voltage obtained through a rectifier 3 from a coil 1 coupled to the secondary loop of a welding transformer. The voltage produced at condenser K1 upon operation of relay A controls a double triode 5 to draw corresponding current through diodes 13, 14 from a reference network including resistors 15, 16, 17, to actuate lamps L1, L2, L3 and a gong G to indicate whether the voltage is high, low or within a prescribed range.