baber/WOPTO huggingface dataset:
Patent GB-962969-A (GB)
Title: Improvements in and relating to disc brakes
Inventor: HENDERSON HENRY BELLAMY
IPC: F16D55/224
Filed: 1961-03-28
Abstract: 962,969. Disc brakes. AUTOMOTIVE PRODUCTS CO. Ltd. March. 8, 1962 [March 28, 1961], No. 11339/61. Heading F2E. In a disc brake wherein the brake pads 5, 6 disposed on opposite sides of the brake disc 9 are each associated with an operating member 1, 2, the latter are pivotally mounted about a common axis 7 so as to be swingable in a plane normal to the plane of rotation of the disc. A wheel cylinder 3 carried by the member 2 has a piston which is operatively associated with the member 1 so that outward movement of the piston causes the members 1, 2 to pivot about axis 7 and effect braking. A fixed support 8 has a flange portion 13 each side of a gap 12. The pivot-pin 7 is carried by one of the flanges and carries the outer arm 1 formed from two dished metal plates 14, 14a riveted open side together and also the inner arm 2 formed as a casting which is bifurcated at its pivoted end. A stiffening plate 15 is disposed between the bifurcations 20. The pads 5, 6 are provided with metal backing plates 5a, 6a which are disposed in recesses 23 and have shoulders 24 which engage ledges on the arms 1, 2 to locate the pads radially. The pads are removable radially through an aperture 25 and outer arm 1 and are restrained against outward displacement by a spring blade 26. Brake chatter is reduced or eliminated by a spring 27 anchored to the outer arm 1 and to the fixed support. Further spring loading is provided by a compression spring 28 acting between the fixed support and a collar 29 screwed on to a threaded rod 30 which projects through slots in the flange 13 and metal plate 14a and has an enlarged head which bears on the plate 14a. The disc brake can be used as a hand brake by the use of a Bowden cable. The nipple 36 of the cable casing is screwed into a tapped hole in the inner arm 2 and the cable core 38 is pivotally connected at 39 to the outer arm 1. Holes 39a in the metal plates 14, 14a assist in the dissipation of heat. An automatic adjuster is provided and consists of a bush 33 of friction material disposed in a recess 34 in the inner arm 2 and a pin 35 pivotally attached to the outer arm 1 and frictionally extending through the bore of the bush.
Patent GB-178326-A (GB)
Title: An improved kitchen utensil for broiling and toasting food
IPC: A47J37/06
Filed: 1921-04-20
Abstract: 178,326. Condy, A. April 20, 1921. Grilling and toasting apparatus. - A frame supporting sheets of good heat-conducting material rests on a gas or other stove, and is provided with means for the ready attachment of a broiler with grooved and inclined bars, or a toaster comprising a frame of bars with upwardly projecting studs. In one construction the frame 1 is made as shown in Fig. 3, ledges 5, 6 being provided to support sheets of conducting material 2 as shown in Fig. 6. The sheets 2 are perforated by holes 7, countersunk on the underside, and are preferably coated with an absorbent material. The broiler 3 rests on the frame 1 by the supports 9, 11, and comprises a frame 13, an integrally formed catchment trough 14, and inclined grid-bars 17. Exuded liquid flows down grooves 18<a> to the catchment trough 14, or drips from projections 20 on the underside of the bars to the plate 2. A bar 15 with projections 16 also serves to direct overflowing liquid to the plate 2. The toaster attachment comprises a frame of flat metal bans 21, 22, which are provided with upwardly projecting studs 23.
Patent GB-1097480-A (GB)
Title: Material feed apparatus
IPC: B21D43/09
Filed: 1966-03-16
Abstract: 1,097,480. Metal sheet feeds. MAGNETIC METALS CO. March 16, 1966 [March 23, 1965], No. 11419/66. Heading B3W. [Also in Division F2] A sheet metal feed mechanism comprises a pair of feed rolls 84, 85, Fig. 4B, which are driven from a power take-off shaft of a press to which the feed mechanism is attached, through a gear train which includes an eccentrically mounted input gear 47 which rotates about a first fixed axis, an output gear 50 which rotates about a second fixed axis and an intermediate idler gear 48 which meshes with both the input and output gears and which rotates about a movable axis. The gear train is mounted in a casing 31, 32, 33 which is bolted to the base of a press and includes an input shaft 33 which runs in bearings in the casing walls and supports a crankpin 38 on which the input gear 47 is mounted. The output gear 50 is mounted on a shaft 51 which is also supported by the casing walls. The idler gear 48 is freely mounted on a shaft 49 which is supported by a pair of links 60 and a pair of links 61. The links 60 are freely rotatable on the crankpin 38 and on the shaft 49 and the links 61 are freely rotatable on the shaft 51 and on the shaft 49. As the shaft 34 rotates, with constant angular velocity, the shaft 49 rotates about the shaft 51 and, during each revolution of the gear 47, twice passes through the position where the axes of the shafts 33, 38 and 49 are in line. At these positions the rotation of the shaft 49 about the shaft 51 stops and then reverses direction. This rotation of the shaft 49 combines with the rotation of the gear 48 to produce a varying speed of rotation of the output gear 50. By suitable choice of the ratio of the gears, the eccentricity of the gear 47 and the distance between the shafts 33 and 51 there will be a period during each rotation of the input gear 47 when the output gear will be stationary. The output gear 50 drives a further gear 53 secured to a shaft 54 which also has fixed thereon a sprocket 27. A chain 17 connects the sprocket 27 to a sprocket secured to the shaft of the feed roll 84. The feed roll 85 is pressed against the roll 84 by springs 18 and is lifted once during every feed cycle, to allow the strip to be aligned longitudinally, by a cam 83 on the shaft 33 which actuates a push-rod (21), Fig. 1 (not shown), and links (19 and 22). This lifting of the feed roll occurs at the time that the strip is held between the punch and die of the press. In the example described, for which dimensions are given, the feed rollers rotate during 255 degrees, of the 360 degrees cycle of operation of the press. In a modification the amount of strip feed is varied by inserting a variable speed drive in the chain drive to the feed rolls.
Patent GB-678364-A (GB)
Title: Control systems for internal combustion engines
IPC: F02D9/00
Filed: 1948-04-26
Abstract: 678,364. Pumps. BENDIX AVIATION CORPORATION. April 26, 1948 [June 6, 1947], No. 11438/48. Addition to 678,361. Class 7(ii) [Also in Group XXIX] An aircraft engine control system as in the parent Specification, but in which the cruise override and propeller control mechanisms are omitted and the  supercharger is driven through three couplings instead of two, has improved follow-up and reset means for stabilizing the control by momentarily altering the intake pressure selection if this is varied greatly from the actual pressure during operation when the throttle valve is fully open and control is effected by varying the speed of the supercharger. As shown, follow-up and reset pistons 202, 203, respectively, urged apart by a spring 210 and interconnected, with lost motion, by a rod 211, are subjected to the pressures in conduits 76, 77 which communicate with passages (not shown) conveying actuating fluid to the control valve for the hydraulic couplings driving the supercharger. A piston valve 204, movable by the follow-up piston to control pressure applied to the lower side of the reset piston through a passage 206, has an upward extension connected to mechanism which determines the selected pressure. Thus, should the selected pressure be increased resulting in an increase in the pressure in the conduit 77. the followup piston 202 is moved downwardly causing the pressure selecting mechanism to be adjusted to reduce the selected pressure, but at the same time, the valve 204 connects the lower end of the reset piston 203 with the conduit 77 so that, through the spring 210, the piston 202 is returned to its original position. Conversely, when the selected pressure is reduced, the piston 202 moves upwardly due to increased pressure in the conduit 76, but the valve 204 then vents the underside of the piston 203 to an outlet 208 so that the upward spring load on the piston 202 is reduced, causing it to descend. In a modification, the valve 204 is provided with metering lands which set up a resistance to flow inversely proportional to the deflection of the valve and with further lands which permit of byepassing the metering lands when large deflections are imparted to the valve. Specification 678,394, [Group XXIX], is referred to.
Patent GB-855511-A (GB)
Title: Coiling drums
Inventor: STARLING COLIN WILLIAM
Filed: 1956-04-16
Abstract: 855,511. Winding and reeling. ROBERTSON & CO. Ltd., W. H. A. April 10, 1957 [April 16, 1956], No. 11467/56. Class 83 (4). [Also in Group XVI] A coiling drum of the type which can be collapsed in a radial direction to admit of the removal therefrom of a coil of strip or wire which has been previously coiled upon the drum under tension comprises the combination of a central member of tapering form, a plurality of angularly-spaced and radially-extending wedgeshaped elements which bear against and are slidably keyed to the central member, an equal number of segmental elements each supported in spaced relationship to the central member by facial abutment with a pair of adjacent wedgeshaped elements and means for limiting outward radial movement of the elements, the arrangement being such that relative axial movement between the central member and wedge-shaped elements will allow the latter to move radially inwards. In one embodiment, Figs. 1, 2, relative axial movement between a tapered or saw-toothed sectioned, central member 5 and wedge elements 7 having inclined faces bearing on and keyed to the central member 5 cause the expansion of segments 9, such expansion being limited by flanges 11 and 14. A nut 12, supporting a plate 13 connected by bolts 15 extending through radial slots 16 in the plate to the wedge elements 7, engages a threaded part of the central member 5 to effect the relative axial movement. Alternatively fluid-pressure means may effect such relative axial movement. In another embodiment, Fig. 3, the elements 7 are moved outwardly by opposed pyramid members 19 moved towards one another by a screw 18. A slot or gripping device for the strip or wire is formed in one segment 9.
Patent GB-114752-A (GB)
IPC: E01H13/00
Abstract: 114,752. Tejima, J., and Kishida, K. Aug. 11, 1917. Meteorological conditions, local, apparatus for influencing.-Consists of an apparatus for blowing an annular current of air through a fog to form a passage through which objects otherwise invisible may be seen, and is specially applicable for use at sea. A sight tube 16 with a glass panel 3 is fixed within an outer tube 1. The chamber 2 between the tubes communicating with a source of compressed air through a flexible pipe 18, a pipe 10 fixed in a revolving standard 9 and communicating with an air passage in the fixed base 8. The tube 1 is mounted on a hinge pin 11 about which it can be tilted by means of a quadrant 4 and suitable mechanism. The pin 11 is supported on the standard 9 which revolves on a seating on the base 8 and can be secured in position by set-screws 14, 14 engaging a groove 15 in the base. The air is forced from the chamber 2 through the annular passage 7.
Patent GB-980701-A (GB)
Title: Means of measuring demand in an electrical power circuit
IPC: G01R21/02
Filed: 1961-03-29
Abstract: 980,701. Measuring KVA. SANGAMO WESTON Ltd. March 29, 1961 [March 30, 1960], No. 11525/61. Headings G1Q and G1U. For measuring KVA in an A.C. power circuit, currents proportional to voltage across and current in a circuit are derived, rectified, and then applied to a heater bridge in such a way that the currents are additive in one half and subtractive in the other half of the bridge, the heaters operating a responsive system such that where the current flow is additive one direction of response is produced and where it is subtractive an opposite direction is produced. In a power circuit 1, Fig. 1, having a load 2, a current transformer 5 and a voltage transformer 4 deliver via full wave rectifiers 7 respective output currents IL, IV proportional to the current and voltage in the power circuit, these outputs being applied across respective diagonals of a resistive bridge of heater elements R1, R2, R3, R4, each of equal resistance R. A smoothing choke 8 maintains the current IV substantially constant thereby removing any tendency of the heater to phase angle dependency. The currents IV, IL divide into halves as shown. Thus IV/2 flows oppositely to IL/2 in arms R 1 , R 2 , whereas in arms R 3 , R 4  they flow in the same direction. Heaters R 3 , R 4  operate on a bimetal coil 101 whilst R 1 , R 2  operate on a coil 102, the coils driving a pointer 100 respectively in opposite directions. The pointer deflection D is thus a strictly increasing function of = 2IL . IV . R and thus in the case of a calibrated meter D = |V| À |I| KVA. where |V| and |I| represent the absolute magnitudes of voltage and current in the power circuit. Another embodiment employing full wave bridge rectifiers 10, 11 Fig. 2 uses a heat responsive system comprising thermocouples 103 the opposed junctions 105, 104 of which are responsive to the subtractive and additive heater currents respectively, to produce a voltage output across the meter 107. The invention is applicable to polyphase systems, in which case a system as shown in Fig. 1 or Fig. 2 may be used in each phase of the currents derived from the various phases may be used to operate on a single heater bridge Figs. 4, 6 (not shown). Fig. 7 shows a KVA meter similar to that of Fig. 1 but wherein the rectified current from the secondary of the current transformer 5 flows through the current coil 12 of a standard Watthour meter combined with the KVA meter. Figs. 8, 9 (not shown) illustrate a three phase combined KVA and watthour meter. The potential transformers may be dispensed with under suitable line voltage.
Patent GB-1092727-A (GB)
Title: The production of a semi-conductor thyratron of the pnpn-type
IPC: H01L29/10
Filed: 1965-03-18
Abstract: 1,092,727. Semi-conductor controlled rectifiers. SIEMENS-SCHUCKERTWERKE A.G. March 18, 1965 [March 18, 1964; Aug. 8, 1964], No. 11633/65. Heading H1K. In a process of making a four-layer controlled rectifier, a deathnium impurity is diffused from one main surface of a monocrystalline semiconductor body as far as the junction which is to be the middle one of the three successive PN junctions in the completed device, and at this point the temperature of the body is suddenly lowered, at a rate of not less than 50‹ C per minute. In the embodiment described aluminium and/or gallium is diffused into the entire surface of an N-type silicon wafer of 20- 40 ohm cm. resistivity. A layer of gold (a deathnium impurity) is evaporated on to one major face of the wafer and the wafer is then heated until gold has diffused across the wafer to reach the junction formed by the P-type diffused layer on the opposite side of the wafer. The temperature of the wafer is then suddenly lowered by a blast of inert gas. This ensures that the gold remains evenly distributed at the junction and does not aggregate at lattice defects. An aluminium foil is then applied to that face of the wafer from which gold was diffused. Any remaining gold need not be removed. Concentric annular and circular foils respectively of gold-antimony and gold-boron are applied to the opposite face of the wafer. The three foils are then alloyed to the wafer to form anode, cathode, and control electrodes. The control layer is formed under the goldantimony electrode during the alloying process. The edge of the wafer is then removed to separate the anode and control regions. In a variant deathnium material may be diffused from the face of the wafer on which the control electrode is formed but this gives an undesirably short lifetime at this side of the wafer. Alternative deathnium materials suggested are iron, manganese, copper and zinc.
Patent GB-1431534-A (GB)
Title: Window winding apparatus
IPC: E05F11/42
Filed: 1974-03-15
Abstract: 1431534 Window winding apparatus H T GOLDE GmbH 15 March 1974 [16 March 1973] 11655/74 Heading E2M In a window winding apparatus, a flexible threaded cable 18 of a window winder is slidably guided in a tube 15 provided with a longitudinal slot 20 and the cable 18 is connected by means of a peg 21 and an attached moulded block 22 to the threaded cable 18 such that the moulded block 22 engages a slider 7 connected to the window pane 2 by means of a lifting bar 13 and batten 14. The window is opened by means of a hand lever 17 and the slider 7 is moved downwardly to open the window. A flange 6 of a central guide rail 4 is orientated vertically of the window pane 2 and serves as a guide for the slider with the assistance of sliding shoes 8 affixed to the slider 7. The block 22 and a transmission opening 28 in the slider 7 are so dimensioned that there is little or no play between these components in the direction of the axis of the threaded cable 18 in order to prevent backlash of the window winder whereas, transversely to the axis of the threaded cable there is sufficient play provided in the opening 28 to take account of any twist of the longitudinal slot.
Patent GB-164934-A (GB)
Title: Toys or other articles of wood each portion cut and shaped by one operation by meansof press tools
IPC: A63H9/00
Filed: 1920-04-28
Abstract: 164,934. Pearce, H. April 28, 1920. Cutting-out apparatus. -Consists in the use of upper and lower cutters having exactly similar parts for cutting-out Noah's Ark animals or the like. Fig. A shows one form in which the cutting- edges are seen at D, D. The parts E may be formed with patterns for embossing the wood cut. Fig. F shows one of the tools in plan on a smaller scale. The cutting-edge is shown at D and the parts G indicate embossing lines.
Patent GB-558173-A (GB)
Title: Improvements in or relating to actuating components for thermostats
IPC: G01K5/66
Filed: 1942-08-21
Abstract: 558,173. Alloys ; annealing. DARWINS, Ltd., and LINLEY, A. Aug. 21, 1942, No. 11768 [Classes 72 and 82 (i)] The high-expansion element of a bimetallic actuating component of a thermostat is made of an iron alloy containing 3.5-8 per cent. of manganese. 11-16 per cent. of nickel, 1-5 per cent. of copper, and up to 0.5 per cent. of carbon, with or without up to 1 per cent. of selenium. It may be annealed by heating to 850-1000‹C. and cooling naturally. The low-expansion element is preferably an iron alloy containing 36-48 per cent. of nickel.
Patent GB-783806-A (GB)
Title: Process for the prevention of electrical charging of textile materials
IPC: D06M15/17
Filed: 1955-04-25
Abstract: Textile materials are treated with 0.01 to 1 per cent, calculated on the fibre weight, of a fatty acid, fatty alcohol or derivative of either, which contains in the molecule more than 10 carbon atoms and at least 2 double bonds.  The materials treated may be fibres, threads or woven or knitted fabrics of nylon, acetate rayon, polyesters or vinyl polymers.  The compounds may be applied in solution or aqueous dispersion or may be added to the spooling or twist oils.  The derivatives of the compounds include esters and ethers with cyclic or acyclic mono- or poly-hydroxy alcohols or ether alcohols, salts of their acid esters with polybasic inorganic acids, amides derived from ammonia or organic bases or salts of the acids with ammonia, metals or organic acyclic, isocyclic or heterocyclic bases.  Specified are: linoleic acid, linoleyl alcohol, elaeostearic acid, a glycol ester of the fatty acid of linseed oil and the salt with an organic base of an acid phosphoric acid ester of an unsaturated alcohol mixture obtained by reducing soya oil fatty acid. Dispersing agents used are turkey red oil, condensates of ethylene oxide and oleyl alcohol or linoleyl alcohol, and the sodium salt of the acid sulphuric acid ester of oleyl alcohol.
Patent GB-1373181-A (GB)
Title: Method of and apparatus for drilling workpieces by means of laser beams
IPC: B23K26/40
Filed: 1972-03-14
Abstract: 1373181 Drilling with laser beams TURLABOR AG and PIERRES HOLDING SA 14 March 1972 [29 March 1971] 11815/72 Heading H1C A laser for drilling holes in materials such as watch jewels or metals has a pulsed output, each pulse comprising a series of equi-spaced spikes the first of which has the greatest amplitude while the remainder have amplitudes which are either the or same as one another which diminish along the series. The alternative forms of pulses are shown in Figs. 2 and 3. The production of a first spike 1, of greater amplitude than the remainder is achieved by operating the laser so as to oscillate in a single transverse mode, which may be fundamental or a higher order. The initial spike serves to heat the workpiece to a point where its absorption coefficient is significant (in the case of a transmissive material, e.g. ruby) or to a point where its surface reflectivity is significantly reduced (in the case of a metal). The spacing between spikes allows vaporized material to escape from the hole. To produce the spikes the Q of the resonator of the laser may be partially spoilt by a modulator consisting of a Kerr cell, Pockels cell, acoustic cell or a saturable absorber, Fig. 6 (not shown), the modulation depth determining whether the output is as shown in Fig. 2, or as in Fig. 3; alternatively one of the resonator mirrors may be mounted on a piezoelectric crystal, Fig. 7 (not shown). The modulator is controlled by an alternating current source having a frequency selected in accordance with the desired repetition period of the spikes. The resonator output mirror has a reflectivity of 80-90% which is stated to cause the production of powerful spikes.
Patent GB-1535803-A (GB)
Title: Spherical bearings
IPC: F16C33/14
Filed: 1976-03-24
Abstract: 1535803 Spherical pivots BAKER PERKINS HOLDINGS Ltd 3 March 1977 [24 March 1976] 11885/76 Heading E2F [Also in Division F2] A spherical bearing assembly, having an inner member 11 surrounded by a housing 14 consisting only of two annular housing members, is made by placing the housing members round the inner member and then securing the housing members together along their radially extending faces, preferably by electron beam welding. Liners of bearing material may be provided on the outer surface of the inner member.