baber/WOPTO huggingface dataset:
Patent GB-1306760-A (GB)
Title: Multiple connector plates for electric components
IPC: H01H67/26
Filed: 1971-11-25
Abstract: 1306760 Electric couplings SIEMENS AG 25 Nov 1971 [30 Nov 1970] 54702/71 Heading H2E [Also in Division H1] A multiple connector plate comprises a carrier plate of insulating material, having a plurality of grooves on each major surface, the grooves on one surface running at right angles to those on the other surface, bus-bars supplied with soldering lugs at right angles to the bar being contained in the grooves, apertures in the connector plate being provided to accommodate the soldering lugs and connecting elements of components mounted on the plate, the bus-bars and grooves or apertures being arranged such that when a connecting element and a soldering lug are present in an aperture they press against one another. Grooves 4-7, Fig. 2, on the component side of the plate carry bus-bars 11-14 and where connections between a soldering lug and connecting element are to be made apertures, i.e. 24-27, are provided. Such an aperture 47, Fig. 6, comprises an inclined plane 54 such that when the bus-bar 52 is mounted in the groove 50 the corresponding soldering lug 53 is inclined with respect to the longitudinal axis of the aperture. The connecting element 55 is correctly oriented in the aperture by means of a semi-cylindrical channel 48 having a flared end 49. When the element 55 is plugged into the aperture the soldering lug is partly bent back and presses against the element under stress. Grooves 18-20, Fig. 2, on the soldering side of the plate contain bus-bars 21-23 and cylindrical holes 29-32 are provided in the carrier plate for the passage of connecting elements to contact soldering lugs on said bus-bars, said soldering lugs being bent towards said cylindrical holes so as to make contact with the connecting elements. Bus-bars 11-14, Fig. 2, are connected directly, to a terminal block (not shown) and bus-bars 21-23 are connected to said block by means of L-shaped connecting strips 15-17, the shorter part of each strip passing through a flared aperture, such as aperture 33, Fig. 2 to contact under stress, a soldering lug of one of said bus-bars. Where necessary connections between at least two connecting elements of a component are provided by a bridge 81, Fig. 2, accommodated in a groove 80. The bus-bars on the soldering side of the plate are held in position during the subsequent dip soldering process by means of deformations in the insulating material at certain points along the grooves. In an alternative embodiment the grooves in the insulating material are moulded at an angle to the surface of the plate such that the soldering lugs are inclined ready for contact with the connecting elements.
Patent GB-1319097-A (GB)
Title: Dispersive delay lines operating in the shear mode
IPC: G02B27/44
Filed: 1970-11-18
Abstract: 1319097 Optical delay line THOMSON C S F 18 Nov 1970 [25 Nov 19691 54846/70 Heading G2J [Also in Division H3] A dispersive delay line operable with acoustic or light wave energy for use in pulse compression techniques or in interferometers has the basic form shown in Fig. 1. In this figure a transverse wave SH having horizontal polarization is incident at an angle α 1  upon surface 31 of a thick lamella 2. By "horizontal polarization" is meant that the direction of vibration and thus of the wave energy particles is perpendicular to the plane of the drawing. The direction of motion of these particles is not modified during reflection or refraction of the waves in the delay line. The material of lamella 2 is selected so that the propagation velocity C 2  of the wave SH in the lamella is greater than the velocity C 1  in the adjacent medium 1. The angle α 1  must be selected such that sin α 1  > C1/C2. The incident wave SH produces a surface wave which travels along the surface 31 at a velocity C1/sin α 1  and impinges on a grid array 41 having a constant spacing a. The grid lines are parallel to the direction of vibration of the wave energy particles and function as a diffraction grating to diffract the wave energy into the lamella 2 at an angle α 2 . The angle α 2  is a function of the wavelength and hence the length of the path AB through the lamella is different for different frequencies of the incident wave whereby different delays are given to the different frequency components. At the other surface 32 of the lamella the waves transmitted through the lamella impinge on a further grid array 42 identical to the array 41 to give an output transverse wave, horizontally polarized, and having a direction parallel to the incident wave SH. The specification shows that the angle α 2  is defined by the relationship sin α 2  = m-P. #/a, where m is a number greater than one and equals C 2 /C 1  sin α 1 , P is a positive whole number representing the order of the energy radiated by the array 41, and # is the wavelength of the radiation propagated by the lamella 2. Fig. 6 shows an optical device for use in an interferometer and which comprises two identical prisms 11, 12 separated by a distance d in a vacuum. The prisms carry'the arrays 41, 42 and light from a laser is applied perpendicularly to the prism face 111.
Patent GB-1194188-A (GB)
Title: Improvements in or relating to the Feeding of Machines.
Inventor: HALL ROGER SMITH
IPC: D06F67/04
Filed: 1966-12-08
Abstract: 1,194,188. Feeding apparatus for ironing machines. R. S. HALL. 6 Dec., 1967 [8 Dec., 1966], No. 54915/66. Heading D1A. The leading edge of a sheet is tensioned to lie parallel to the axis of a feed cylinder 1 against which it is held and the cylinder is rotated to lay the edge on to a moving feed conveyer 8 and hold it after which it is forwarded by the feed conveyer. As shown, the cylinder 1 is party covered by pressure pads 14, e.g. of cellular rubber or plastics, and partly perforated so that a vacuum may be applied. It is supported on guide roller 2, driven by motor 3, and is carried in end frames 5 mounted on pivoted arms 7 so as to be movable by a piston and cylinder 10 in relation to the multi-tape conveyer 8 which feeds the sheets to the nip of calender roller 12 and calender bed 13. A clip 17 whose jaws are formed by a cup and co-acting inflatable diaphragm carries one corner of a sheet across the cylinder as the other comer is held. A vacuum is applied to hold the sheet and the cylinder is rotated at a surface speed greater than conveyer 8. The sheet may be stretched sideways by a belt 24 carried on pulleys 25 or a tensioning curved, bar. The sheet can hang into trough 26. Two sheet gripping means may be provided which move in opposite directions.
Patent GB-1441520-A (GB)
Title: Containers for forming shaped pieces of ice
IPC: F25C1/24
Filed: 1974-12-19
Abstract: 1441520 Ice-making S G I LUNDGREN and L J F TORNELL 19 Dec 1974 [28 Feb 1974] 54930/74 Heading F4H A container, used in forming shaped pieces of ice, includes a number of depressions 16, and an index mark 20 which indicates the level 21 of the quantity of liquid in the container which corresponds to the total capacity of all the depressions 16. In use, the container is filled with water to the level 21, and is then placed in a freezer compartment with side 15 lowermost. The index mark may also be in the form of an overflow aperture in the side 8. The container is formed of rubber or of synthetic plastics material, and may also be transparent.
Patent GB-1240666-A (GB)
Title: Improvements in or relating to polyimide compositions
IPC: B05D7/26
Filed: 1969-11-11
Abstract: 1,240,666. Laminate. MINNESOTA MINING & MFG. CO. 11 Nov., 1969 [12 Nov., 1968], No. 55150/69. Addition to 1,240,665. Heading B5N. [Also in Division H1] The metal-polyimide composites claimed in the parent Specification, which comprise layers of metal and of a polymer obtained by curing a composition comprising a solution in a volatile solvent of a mixture of separately prepared polyamide acids the first being prepared from a tetracarboxylic acid and the second, which provides up to 90% total solids, from a tricarboxylic acid, with the polymer portion of the composite forming a flexible adherent dielectric film which is self-supporting if the metal is etched away, is modified by having a heatresistant porous web-like backing carried by and at least partially embedded in at least one of the polymer layers of the composite. Specified web-like backings are glass fibre or cloth and polyamide, e.g. polymetaphenylene diamine isoterephthalamide, fibre or cloth. In examples, starched 2 mil. glass cloth or polyamide cloth is dipped in the polyamide acid solution and laminated to the oxidized surface of electrolytic copper foil.
Patent GB-1199428-A (GB)
Title: A Protecting Valve for Air Brake Systems.
IPC: F16K11/07
Filed: 1967-12-05
Abstract: 1,199,428. Air brake systems; valves. BERG MFG. & SALES CO. 5 Dec., 1967 [9 Dec., 1966], No. 55366/67. Headings F2F and F2V. A protecting valve for air brake systems comprises a reciprocable shuttle member carrying a plurality of seals which co-operate with ports in a chamber, the shuttle being biased by a single spring to one position where it connects a first port to a second port, but moved by the pressure at the second port to a second position in which it connects the first port to a third port. The Figure shows the valve used to prevent loss of pressure in a tractor compressed-air braking system if the trailer line should be broken. The valve is biased into the position shown by a spring 25, when connection is shut off between the service inlet 3 and outlet 4, and between the emergency inlet 5 and outlet 6, the last-named being connected through passage 15, the hollow centre of the valve 16, aperture 26 and dust-excluding check valve 27 to the atmosphere. When pressure is applied from the reservoir to inlet 5 through a manually or pressure-operated control valve, the piston 8 is driven to the right against the spring, and at a certain value of pressure a seal 9 will come opposite the lands between grooves 11 in the valve casing. Air can then flow from inlet 5 to outlet 6 and thence to the emergency system of the trailer (not shown). At the same time, a seal 13 moves beyond the conical portion 14 of the valve casing to shut off the outlet 6 from the passage 15 and hence from the atmosphere. Also, a third seal 19 comes opposite the lands between grooves 30 and establishes a connection between inlet 3 and outlet 4 to supply air to the service braking system of the trailer. The pressure required to hold the valve to the right is lower than that required to move the valve since the seal 13 is of lesser diameter than seal 9. If the pressure in the reservoir drops to this lower level, the valve will move back to the left, sealing the inlets 3 and 5 to prevent any further loss of pressure, and venting the outlet 6 through the check valve 27 to trigger the emergency application of the trailer brakes.
Patent GB-1396265-A (GB)
Title: Coloured glass articles
IPC: C03C21/00
Filed: 1973-11-30
Abstract: 1396265 Colouring glassware PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 30 Nov 1973 [5 Dec 1972] 55625/73 Heading C1M In the manufacture of coloured, pressed, glass articles in which metal ions are diffused into the article under reducing conditions, the article is first subjected to an etching liquid containing HF so that a surface layer of at least 10 Ám thickness is removed from the article. Silver is the preferred metal, to give a red coloration, for use as face-plate panels for infra-red radiators. In the example, etching is by a 4 to 1 by volume mixture of concentrated HF and H 2 SO 4  at room temperature for 2 minutes, removing a layer about 2 Ám. The glass used, in percentage by weight was: SiO 2  77.4; B 2 O 3  14À9; Na 2 O 4À5; K 2 O 0-3; Li 2 O 0À2; Al 2 O 3  1À5; F 0À2; As 2 O 3  1À0. After rinsing a staining paste of silver sulphate, MnO 2  and Fe 2 O 3  with binders was applied and heated to 520‹ C. for 10-15 mins., when the paste was removed by washing.
Patent GB-1243224-A (GB)
Title: Improved brake system
IPC: B60T8/26
Filed: 1968-11-26
Abstract: 1,243,224. Antiskid control systems. NORTH AMERICAN ROCKWELL CORP. 26 Nov., 1968 [1 March, 1968], No. 65962/68. Heading F2F. A logic control system responds to the difference between the fastest front wheel and slowest rear wheel to hold rear brake pressure when there is a small speed difference, and reduce pressure if there is a large speed difference. An over-ride control disables the antiskid system with low front wheel speed (e.g. front wheels locked). In an alternative system, Fig. 3 (not shown), the control responds to average front and rear wheel speed by summing alternate pulses from the front wheel speed sensors, and likewise at the rear. As shown, Fig. 1, sinusoidal signals from front wheel speed sensors 58a, 58b, trigger flip-flops 62, 64 to produce pulses which are compared at 70 to give a fastest-front-wheelsignal. A similar circuit at the rear produces slowest-rear-wheel-signals from comparator 72. These front and rear wheel signals are compared in logic-switching circuits 74, 76, illustrated in greater detail, Fig. 3 (not shown) and employing flip-flop counters controlling gate circuits. The output of "switch" 74 operates solenoid valve 48 to hold the rear brake pressure at a predetermined speed difference and "switch' 76 operates solenoid valve 50 to bleed rear brake pressure at a greater speed difference. Zero front wheel speed detector 102 disables the anti-skid control.
Patent GB-1291981-A (GB)
Title: Circuit arrangement for providing a focusing voltage for display tubes
IPC: H04N3/18
Filed: 1969-11-17
Abstract: 1291981 Cathode-ray tube circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 17 Nov 1969 [20 Nov 1968] 56092/69 Addition to 1251355 Heading H4T [Also in Division H2]  In an electrostatically focused cathode-ray tube optimum focus is maintained despite variations in EHT voltage due to changes in beam current by producing a proportional change in the focusing voltage. Thus; as shown in Fig. 1 the focusing voltage V F  applied to the focus electrode 10<SP>1</SP> is derived from a tap (or slider) 24 on a resistor 23 which, together with rectifier 9 and capacitor 10 forms a rectifying circuit for rectifying the voltage Vp+(-V s ). The latter voltage ( - V s ) shows a larger change for a given increase in beam current than voltage Vp, due to the transformation ratio of the (lineoutput) transformer 3 and results in the percentage change in the voltage across resistor 23 being approximately the same as the percentage change in the EHT voltage supplied to the final anode 18. The time constant of capacitor 10 and resistor 23 is made large so that the rectifier circuit responds to the peak valueof the voltage Vp+V s  during the fly-back period T s  (Fig. 2).
Patent GB-1282136-A (GB)
Title: Cooling system of a motor vehicle internal combustion engine
Inventor: MASUDA TETUZO
IPC: F01P3/18
Filed: 1969-11-17
Abstract: 1282136 Cooling motor vehicle engines NISSAN MOTOR CO Ltd 17 Nov 1969 56176/69 Heading B7H [Also in Division F1] A cooling system in an automobile having a transversely-mounted engine 10, Fig. 1a, comprises a duct 12 associated with a fan 15 for withdrawing the heated cooling air from the radiator 11 and discharging it to the ambient through a conduit 14. The conduit 14 extends downwardly but in other embodiments it extends horizontally to the side of the vehicle. The conduit 14 may be provided with a branch conduit (17), Fig. 1b (not shown), for leading the heated air into the vehicle interior for heating purposes, a valve (16) for controlling flow through the branch conduit being provided in the conduit 14. The fan may be driven by the engine crank-shaft either directly or through a belt. Fixed guide vanes (23), Fig. 5a (not shown), may be arranged downstream of the fan. Some of the air entering the front of the vehicle during forward motion thereof, may pass directly into the engine compartment to cool the engine directly and thereafter pass through an opening (21), Fig. 3 (not shown), in the side of the duct (12) for subsequent discharge by the fan (15). Some of the air passing through the radiator may pass directly to the engine compartment, Fig. 4 (not shown).
Patent GB-1132920-A (GB)
Title: Improvements in and relating to nuclear reactor plants
Inventor: TONARELLI LORENZO
IPC: G01T1/29
Filed: 1967-12-14
Abstract: 1,132,920. Reactors. SULZER BROS. Ltd. 14 Dec., 1967 [15 Dec., 1966], No. 56862/67. Heading G6C. In a gas-cooled liquid-moderated calandria type reactor means are provided to ensure that the pressure of the liquid is kept close to that of the gas so that thin-walled calandria tubes may be used. As shown, a moderator vessel 1 with tubes 3 containing fuel rods 2 is disposed within a concrete pressure vessel 5. The heated coolant gas, e.g. CO 2 , flows out of the tubes 3 into the interior of the vessel 5 and generates steam in a heat exchanger 6, the gas being returned to a chamber 4 by a blower 8. A connecting line 9 for the moderator, e.g. D 2 O, connects the vessel 1 to a balance tank 10 which also receives gas along a line 11 from the atmosphere surrounding the vessel. Flow smoothers 12, 13 having honeycomb cells (Fig. 2, not shown) to induce a large number of parallel flow paths act as buffer chambers to prevent reverse flow of the fluid. Further flow smoothers 14, 15 situated downstream of tap-off lines 16, 17 prevent moderator molecules which are diffusing from the liquid space into the gas space in the balance tank 10 passing into the coolant circuit and also prevent gas molecules dissolved from the gas space into the liquid space in the tank from passing into the moderator vessel 1. The quantity of fluid tapped-off through the lines 16, 17 is such that the flow speeds through the lines 11, 9 are greater than the speeds of diffusion of the moderator and coolant gas molecules, respectively. The coolant is returned to the pressure vessel 5 through a filter 20, separator 21, blower 22 and non-return valve 24. The moderator from line 17 reaches a reservoir 30 through a gas separator 27 and filter 29, the moderator being returned to the vessel 1 by a pump 31, valve 33 and non-return valve 34. In order to control the moderator pressure in relation to the coolant pressure so as to keep the pressure difference small, the valve 33 is controlled by a signal line 36 responsive to the moderator level in the tank 10 sensed by a detector 35. A cooling circuit 40 for the moderator includesa cooler 43 and a gas separator 41, the purified moderator being returned to the reservoir 30.
Patent GB-1329372-A (GB)
Title: Vertically adjustable school desk with an inclined top
IPC: A47B41/02
Filed: 1971-12-10
Abstract: 1329372 Desks F FLÍTOTTO [trading as FRITZ FLÍTOTTO] 10 Dec 1971 [30 June 1971] 57589/71 Heading A4H A school desk comprises a desk top 4 overlying a trough-shaped receptacle 9 and a covering board 5 overlying a compartment 6. The desk top 4 can be pivoted on rear foil hinges 72, Fig.4 (not shown) between an oblique, downwardly forwardly inclined position Fig.1 (not shown), Fig.8, a horizontal position, Fig.2, and an extreme uppermost open position 4', Fig.2. The covering board 5 can be slid between a closing position, Fig.2, in which it is coplanar with the desk top 4 in its horizontal position, a non-use position, Fig.8, in which it is located beneath the desk top 4 and an oblique use position 5<SP>1</SP>, Fig. 8. The side edges of the board 5 slide in rails 28, 29, 29a, Fig. 8, formed integrally on the inner surfaces of side walls 44 of compartment 6 and of extensions 44a. The board 5 is held in its respective positions by a pin or spring 38 on each side fitting in groove parts 22, 26, 21 in walls 44. Board 5 can be secured in its closing  position by detent balls 56, Fig. 6 (not shown) and a lock (64, 65). Side walls 44 and side boards 2 of the desk define between them spaces 71, Fig.6 (not shown) for receiving supports 3, Fig.2. Each support 3 can be set at different heights within the spaces 71 by a screw 51, Fig.7 (not shown) thereon which is inserted into a selected hole 53 in wall 44, and a spring 54, Fig.8, on wall 44 that snaps into a selected notch in support 3. Spaces 71 are closed by boards 75 which are coplanar with the board 5 in its closing position. In its oblique use position (Fig.1), desk top 4 rests on a frame board 70, and in its horizontal position, Fig. 2, it is supported by a front support rail 76 which, for this purpose, is pivoted about its hinges 84, Fig.8, to a vertical position. Rail 76 can be pivoted upwards manually through holes 79, Fig.8, or it may be actuated by a lever 87, Fig.14, pivoted by a pin 93 to rail 76, the lever having pairs of sliding shoes 96, 97 co-operating with ramps 98, 99 formed on the desk. Opening movement of the desk top 4 is limited by an abutment head 81, Fig. 3 (not shown) of each side of desk top 4 co-operating with a counter abutment (82). The parts may comprise plastics. The board 5 is biased to its non-use -position by rubber bands.
Patent GB-1456836-A (GB)
Title: Servo assemblies and systems
IPC: F15B13/14
Filed: 1972-12-15
Abstract: 1456836 Brake boosters CAM GEARS Ltd 21 Nov 1973 [15 Dec 1972] 58125/72 Heading F2F A brake booster assembly comprises a valve housing 1 with inlet port 2 and outlet port 3: a working spool 4 slidable in a cylinder 5 and a control spool 10 slidable in a cylinder 9 a reaction chamber having a first portion 17 between the spools, a piston 6 slidable in a cylinder 7 and carried by the spool 4, the piston 6 forming with its cylinder 7 a working chamber 8 which forms a second part of the reaction chamber, the parts 8, 17 being in communication at least during expansion or contraction of working chamber 8, the spool 4 and piston 6 having an effective pressure area in the reaction chamber which is greater than the effective area of the control spool in the portion 7, axial movement of the control spool being responsive to the input and the output being responsive to axial movement of the working spool, at least the first part 17 of the reaction chamber being in communication with the outlet port 3 in a neutral position of the assembly and in the absence of axial pressure on the control spool, pressure on the control spool causing communication with the outlet port to be closed and communication with the outlet port opened so that fluid pressure in the reaction chamber provides power assistance to the working spool and fluid pressure in the first part 17 provides a reactive force on the control spool in the opposite direction. The pressure fluid is obtained from the hydraulic circuit of a power-assisted steering system.
Patent GB-1245510-A (GB)
Title: Improvements in or relating to gas burners
Inventor: GIESEN KLEIS VAN DER
IPC: F23D14/00
Filed: 1969-11-28
Abstract: 1,245,510. Gas burner. K. VAN DER GIESEN. 28 Nov., 1969 [28 Nov., 1968], No. 58228/69. Heading F4T. A gas burner comprises a burner head 16 mounted on an air duct 17 supplied with fanblown air via an aperture 7, the head 16 surrounding a series of concentric tubes forming alternate annular gas ducts 1, 2, and air ducts 4, 5, 6 and a central tubular gas duct 3, the gas being discharged transversely to the main direction of air flow through gas outlets 14, flanges 15 being arranged around the gas ducts 1, 2, 3 immediately upstream of the gas outlets 14 and projecting into the air duets 4, 5, 6 to ensure thorough mixing of the gas and air. The gas is supplied through a pipe 9 and connecting pipes 10, 11, 12, 13, and the air flow controlled by means of an adjustable perforated plate 8. The central gas duct 3 may act as a pilot burner, in which case plates 19 extending transversely across the air ducts 5, 6 ensure smooth crosslighting.
Patent GB-1149936-A (GB)
Title: Transducer assembly with tandem bearing pads
IPC: G11B5/60
Filed: 1967-12-22
Abstract: 1,149,936. Magnetic recording and playback. GENERAL PRECISION SYSTEMS Inc. 22 Dec., 1967 [12 May, 1967], No. 58272/67. Heading G5R. A head assembly 14 of the air-bearing type has two bearing pads 38, 40 spaced apart in the direction of relative motion between the head assembly 14 and the record. The transducing gap or gaps may be located at the trailing edge 48 of the assembly as shown ir Fig. 1 or in the channel 42 between the two bearing pads 38, 40 (Fig. 3).