baber/WOPTO huggingface dataset:
Patent GB-1266555-A (GB)
IPC: H03C3/22
Filed: 1969-07-31
Abstract: 1,266,555. Multiplex signalling; frequency modulation. ASSOCIATED ENG. Ltd. 31 July, 1969, No. 38377/69. Headings H3R and H4L. A carrier oscillator circuit 5 comprises a tuned circuit 4, across the capacitor of which two pairs of varactor diodes 6, 6A and 8, 8A are each connected through a respective capacitor 14, 16. The diodes 6, 8 are reverse biased through resistors 10, 12 and the diodes 6A, 8A are reverse biased through resistors 30, 32. A modulated sub-carrier signal A is applied to the diode 6 through a capacitor 18 and a resistor 20, and a modulated sub-carrier signal B is applied to the diode 8 through a capacitor 22 and a resistor 24, the two sub-carrier frequencies being different. Variations of capacitance of the diodes 6, 8 are respectively coupled through diodes and capacitors 6A, 14 and 8A, 16 to the oscillator circuit 5, the output from which is consequently frequency modulated by each signal. The diode 6A (or 8A) prevents current flow in the event of the signal amplitude applied to the associated diode 6 (or 8) becoming sufficient to produce forward biasing. At the receiving end the two signals may be separated, after demodulation of the main carrier, utilizing the difference of frequency between the subcarriers. Either amplitude or frequency modulation may be applied to the sub-carriers, of which there may be more than two. The arrangement may be adapted, for example, to radio-telemetry.
Patent GB-1267152-A (GB)
IPC: A47J31/44
Filed: 1970-01-27
Abstract: 1,267,152. Domestic filters. W. J. JACOBS [trading as JOH JACOBS], 27 Jan., 1970 [28 Jan., 1969], No. 3943/70. Heading B1D. A filter device, suitable for making coffee, comprises a filter paper 13 (Fig. I) extending over the base 12 of a stable housing 10 which has an open top and is made by folding a suitably-shaped sheet liquid-impervious material (Fig. 2), the housing being collapsible, along the fold lines, to a flat state. The unfolded housing is disposed on a coffee pot 19, or other vessel. The sheet material may be metal foil, or cardboard or paper coated with synthetic plastics material. When the blank has been folded along lines 24, 25, 26, and tab 27 overlaps tab 28, a stable structure of square crosssection is formed. The base 12 of the housing is preferably funnel-shaped and has one or more apertures 17 for the passage of filtered liquid. The edge 15 of the base 12 and the edge 14 of the filter paper 13 are engaged with a folded-over portion 16 of the side of the housing. Fold lines 29, 30, 31, 32, 33 enable the housing to be collapsed transversely to a flat state, side walls 21 and 23 being folded inwardly, and the base projecting downwardly. The housing can be unfolded to form a container for liquid to the filtered, simply by pulling apart side walls 20 and 22.
Patent GB-1288452-A (GB)
IPC: G09G3/04
Filed: 1970-05-06
Abstract: 1288452 Numerical indicators SANYO ELECTRIC CO Ltd and TOTTORI SANYO ELECTRIC CO Ltd 6 May 1970 [6 May 1969 12 Sept 1969] 21853/70 Heading G4H An indicator for decimal numbers comprises a register 50 holding the number to be indicated, indicators 10a-10n each adapted to display a numeral or a minus sign, means responsive to the data registered to indicate the corresponding numerals and means for providing a signal indicating the position adjacent the most significant right position and means responsive to an indication of the sign of the decimal number to indicate the minus sign, if necessary, in the appropriate position. The indicators may each consist of seven bars forming a rectangle with a central horizontal cross-bar, a combination of bars being illuminated to display the desired numeral; the central bar alone being illuminated to show a minus sign. Corresponding bar lamps in each indicator are connected together and to transistors 15, for the central bar and 8b-8g. The indicators are repeatedly selected in turn via transistors 5a-5w by a pulse distributer 30. The number in the register 50 is shifted and recycled in synchronism with the operation of distributer 30 and as each numeral occupies the end stage 50a it is converted in unit 40 to an appropriate combination of signals on leads 11allg. Transistors 8b-8g are connected to the negative source 14 via transistor 9 controlled by circuit 60. This circuit also passes a signal over line 19 via or gate 17 to transistor 15 to illuminate the minus sign. Circuit 60, Fig. 3, comprises an auxiliary register 70 having the same number of stages as register 50, "1" or "0" being stored in each to represent the presence or absence of a numeral in the corresponding stage of register 50. When there is a "1" in the end stage an output on lead 13 turns transistor 9 on. Transistor 9 allows the display lamps to be illuminated. For positions above the highest significant digit the "0" in the end position of register 70 does not turn transistor 9 on and no display is made on the corresponding position of the indicator, i.e. zeros above the highest significant digit are suppressed. The bits are entered in register 70 by applying the numeral codes of register 50 in turn to a gate which responds to all numerals except "0" to enter a "1" on the corresponding stage of register 70. Gate 90 responds when there is a "1" digit in stage 70n, "0" in stage 70a and an output from circuit 80 indicating that the value is minus. The minus sign is then displayed in the position adjacent the most significant digit. If all the indicator positions are occupied by digits a separate minus sign indicator may be provided to the left of the display. Instead of bar indicators Nixie tubes may be used. Provision may also be made for indicating the plus sign.
Patent GB-1288456-A (GB)
IPC: C07F9/20
Filed: 1970-05-18
Abstract: 1288456 Preparing 0,0-di(C 1 -C 4 )alkyl chlorothiophosphates SUMITOMO CHEMICAL CO Ltd 18 May 1970 24001/70 Heading C2P An 0,0-di(C 1 -C 4  alkyl)chlorothiophosphate is obtained by a continuous process which comprises passing phosphorus sulphochloride (PSCl 3 ) with agitation through a reaction system having a plurality of reaction zones, continuously supplying to the zones in a successive portionwise manner a total amount of 2À0 to 2À3 moles of a sodium (C 1 -C 4 ) alcoholate per mole of PSCl 3  as it passes through the system, the sodium alcoholate being added in solution in a lower alcohol and the portions being divided between 3 to 8 reaction zones, the fractional amount of the sodium alcoholate supplied to at least two successive zones decreasing in the direction of flow, the average residence time of the reaction solution as a whole being a maximum of 6 hours and the reaction temperature being 30‹ C. or lower. The alcoholate solution is suitably a solution in the corresponding alcohol and the PSCl 3  can be supplied to the reaction system either alone or in an inert solvent, e.g. benzene or toluene. In order to remove the heat of reaction each reactor or reaction compartment is either cooled externally or connected to an externally placed heat exchanger. Two types of apparatus suitable for use in the process are described and illustrated, in one form of apparatus the PSCl 3  is added to the first of a series of 3 to 8 reactors and the alcoholate solution to each successive reactor and in the other a reaction column is divided into 3 to 8 reaction compartments, the PSCl 3  being added to the lowest reaction compartment, the alcoholate solution being added to each successive reaction compartment, and the product removed from the highest compartment. Some of the corresponding 0,0,0-trialkyl thiophosphate and a very small amount of the 0-alkyldichlorothiophosphate are obtained as by-products.
Patent GB-1288935-A (GB)
IPC: D04H18/00
Filed: 1969-05-14
Abstract: 1288935 Needling machines HINDLE SON & CO Ltd 27 May 1970 [14 May 1969] 24569/69 Heading D1R A plurality of main eccentrics 7, symmetrically spaced along the single driving shaft 8 of a needling machine, reciprocate needle beam 4 through connecting rods 10, wrist pins 11 and brackets 12. An equal or lesser number of symmetrically spaced counter eccentrics 17 are angularly displaced through 180‹ to main eccentrics 7, and are connected via rods 20 to counterweights 18 arranged substantially vertically above shaft 8 to balance beam 4. Preferably the counterweights 18 are cylindrical pistons sliding in vertical tubes 19, or guided by vertical slide bars. Alternatively the counterweight (18A, Fig. 3, not shown) are secured to the free ends of generally horizontal radius arm (21),  the fulcrums (22) being mounted on bridge beam 1, so that the counter-weight (18A) oscillate over a small arc approximately vertically above driving shaft 8. Preferably the main and counter eccentrics 7, 17 have the same throw, connecting rods 10, 20 are of equal length, and the total weight of the counterweights 18 equals that of needle beam 4. Alternatively the ratio connecting rod length to eccentric throw is identical for 7 and 17 and the total weight of the counter-weights times the throw of the counter-eccentric equals the weight of the needle beam times the throw of the eccentric. The shaft mounts concentric flywheels 16, and is driven by electric motor (15, Fig. 2) via V-belt pulley 13.
Patent GB-1290926-A (GB)
IPC: H01L29/47
Filed: 1970-05-28
Abstract: 1290926 Semi-conductor diodes TEXAS INSTRUMENTS Inc 28 May 1970 [20 June 1969] 25718/70 Heading H1K A flipchip Schottky avalanche diode of metalsemi-conductor having a heat sink plated on the metal film comprises (Fig. 4) a N+ low resistivity high impurity silicon substrate 10 on which a monocrystalline N-silicon layer 12 is epitaxially grown with high resistivity and low impurity. A metal film rectifying layer 14 of, e.g. Ti, Wo, Mo or. Ta is formed on polished layer 12 by evaporation in vacuo or by sputtering. A metallic bonding layer 16, e.g. Ag, Au is formed by plating or vacuum evaporation on layer 14 and a heat sink layer 18 of, e.g. Cu is deposited on layer 16 by electroplating or electroless plating, and the substrate and heat sink are lapped to thickness. A thin metallic film is evaporated on the substrate and coated with a photoresist, which is selectively removed from the metal film except for the areas of contacts 24, 26, which remain after etching. A second photoresist is applied and selectively removed to define diodes 20, 22, which remain after etching the superincumbent layers down to the heat sink (Fig. 5) which is sawn into individual chips (Fig. 6, not shown) which are conventionally mounted.
Patent GB-1296468-A (GB)
IPC: F25B21/02
Filed: 1970-02-02
Abstract: 1296468 Cooling drinks; cold accumulators THERMO-BAUELEMENT AG 2 Feb 1970 [3 Feb 1969] 4878/70 Heading F4H A stirrer for cooling drinks comprises a conical or substantially spherical container for a substance whose freezing point is below that of water, and a handle in the form of a rod by which the stirrer may be manually rotated. The substance is of low viscosity in the liquid state so that heat exchange promoting currents are set up by rotation of the stirrer in that part of the substance which is in the molten state. Suitable substances are hydrates having freezing points between -5‹ C. and -20‹ C. The substance circulation may be encouraged by the provision of a ring fixed to the interior of the container, Fig. 1 (not shown). To allow for expansion on freezing of the substance, a piece of compressible material with gas filled pores may be provided in the container, Fig. 2 (not shown). Alternatively, the container may be only partially filled to leave a simple gas space which communicates with the central resin of the container either through a series of radial passages, Fig. 3 (not shown), or through a single pipe which has one end maintained in the air space by a float, Fig. 4 (not shown). The handle may be fitted after the container is filled, or the container may be filled through a hollow handle, Fig. 3a (not shown). The container may have spiral protrusions on its wall to promote the formation of currents in the drink. Stirrers may be stored at the table in a trough whose hollow walls are filled with a cold storage substance whose freezing point is lower than that of the substance in the stirrers, Fig. 5 (not shown). The stirrers may be cooled in a domestic refrigerator or in a purpose built thermoelectric refrigerator whose inner and outer walls are thermally connected to Peltier elements.
Patent GB-1311277-A (GB)
Title: Packages of glass in sheet form
IPC: B65G49/06
Filed: 1969-07-28
Abstract: 1311277 Package of sheet glass PILKING- TON BROS Ltd B ANDREWS J C PILKING- TON and B W RILEY 21 July 1970 [28 July 1969] 37861/69 Heading B8C [Also in Division E2] A stack 3 of glass sheets 4 in vertical face-toface relation is secured to L-shaped supporting brackets 1 by means of straps 10. The straps 10 may extend between pins (11, 12) provided, respectively, at the ends of the arms 2, 5 of the bracket, or may completely encircle the stack, the arms 2, 5 being of hollow or channel-section to receive the stop. Additional straps 9, 14 may be provided, straps 14 passing through loops 15 at the rear of arms 5. The arms 2, 5 of the bracket have padding 24, 25 on their inner surfaces. Protector units 6, which may comprise an outer rigid corner piece (7) having ribs (20) to receive the strap, and an inner flexible corner piece (8) of packing material, or may comprise a corner piece of compressed laminated cardboard, are provided where a strap passes over an edge of the stack. Boards 13 having grooves 19 to receive the straps 10 are provided to protect the stack and straps when two packages are stacked. The arms 2 are provided with prongs 16 at the rear and apertures 17 at the front to locate the packages in side-by-side relation. Fastening lugs 18 may be provided on the arms 2 and wooden blocks may be secured to the undersides of the arms 2 to permit the insertion of a lifting device. In a modification, two stacks of glass sheets may be supported, one on top of the other, by the brackets 1, the stacks being separated by wooden blocks and being separately encircled by straps 9.
Patent GB-1315494-A (GB)
Title: Dashpots or dampers
IPC: F16F9/14
Filed: 1969-07-07
Abstract: 1315494 Dampers A R B NASH 3 July 1970 [7 July 1969] 34154/69 Heading F2S In a damper having a member, e.g. a vane 8 moving in a liquid-containing chamber 9, changes in viscosity of the liquid with temperature are compensated for by varying with temperature the size of a flow path out of the chamber. The flow path is bounded by the central portion 28 of a bridge 18 of a material, e.g. nylon having a relatively high rate of thermal expansion which is pivotally mounted by beads 20 in an aluminium mounting member 14 attached to the chamber wall. The central portion 28 of the bridge 18 is urged away from a stem 5 carrying the vane 8 by a leaf spring 30. The bridge 18 is formed with two recesses 36 so that on increase in temperature the central portion 28 of the bridge pivots about the side portions of the bridge to take up the expansion and so dimishes the size of the flow path to compensate for the reduced viscosity of the damping liquid. The normal size of the flow path is made large (0À25 to 0À4 mm.) relative to the clearances between vane and chamber wall (0À05 to 0À08 mm.) so that the variation in cross-section produced by deflection of the bridge is significant.
Patent GB-1317134-A (GB)
Title: Telegraph transmitting device
IPC: H03K17/66
Filed: 1972-04-13
Abstract: 1317134 Double current telegraph amplifier CREED & CO Ltd 13 April 1972 17060/72 Heading H3T A telegraph double-current amplifier responds to the magnitude of an input signal to send positive or negative pulses along a telegraph line L connected between zero potential and the joined collector-emitters of two like conductivity transistors T 1 , T 2  whose collectoremitter paths are in series between positive and negative supply lines. The transistors conduct alternately only; means being provided to ensure this such as a transformer T R1  having one secondary S1 connected between zero potential and the base of transistor T 1  via an envelope detector circuit and the other secondary connected between the collector and base of the transistor T 2 . In operation small input signals do not turn on transistor T 1  but permit the transistor T 2  to be turned on by current flowing via the line L and resistor R 2 . Large signals turn transistor T 1  on but produce a bias across resistor R 2  to oppose the current flowing through the load at the resistor so preventing transistor T 2  from conducting. A centre tapped battery may be used in place of two separate supplies t 1 , t 2
Patent GB-1318219-A (GB)
Title: Electromagnetic relays
IPC: H01H50/26
Filed: 1970-11-02
Abstract: 1318219 Post Office relays GENERAL ELECTRIC CO Ltd 2 Nov 1971 [2 Nov 1970] 51925/70 Heading H1N An electromagnetic relay has an armature 10 pivoted on a knife edge 12 of a yoke 14 and held against the knife edge by a shaped length 26 of resilient wire which is held captive by the armature 10 and a member such as a screw 16 which projects from the yoke 14 in the region of the knife edge 12 and has a groove or slot 30 in which a central portion (28) of the wire is retained. The ends 34 of the wire spring 26 engage the armature at spaced points 24 and limit armature tilting.
Patent GB-1321693-A (GB)
Title: Marking apparatus having register means for use as a postage meter
IPC: G07B17/00
Filed: 1970-06-29
Abstract: 1321693 Manual postage meters M J STACK and J S TRAYNOR [trading as NORSTA ENG] 29 June 1970 31306/70 Heading B6D A manually operable postage meter 20, Fig. 6, having ascending and descending registers 50, 51 which show spent and available preset postage value rates comprises a postage printing carriage assembly 26 mounted slidably in a housing 22 provided on opposite sides adjacent its lower end with a pair of slots in which is mounted slidably a base assembly 24, the housing and the assemblies being movable relative to each other to effect impression of the postage value which is preset on type-wheel 28, 30 supported rotatably in the carriage assembly 26. The base assembly supports a meter stamp die (34, Fig. 3) and plate wheels 34. To print a postage value on an underlying surface 160, Fig. 6, the type wheels 28, 30 are rotated until the selected indicia are visible in indicating windows (52, 53, Fig. 1), the indexing action of the wheels resulting in disposition of one of a number of stops 97 on a stop member 96 in the path of oscillatory movement of a serrated edge 106 on a crank 100. The stop member which is carried by a bellcrank lever 93 whose pin is disposed slidably in a slot (not shown) is set vertically by a lever 88 associated with a spiral cam 86 and laterally by an axial cam 90 through an arm 92 of the bellcrank 93. Following setting of the postage value the housing is depressed whereby the base assembly 24 is caused to move upwardly into the housing the carriage assembly 26 being held stationary relative to the base assembly by a shoulder 74 of a leaf-spring 72 abutting an edge 158 of the carriage assembly. The edge 158 is released by the leading edge of the serrated edge 106 striking the pre-set stop 97 and displacing laterally the bell-crank 93 which is biased by the spring 72 in turn deflected to disengage the shoulder 74. The carriage 26 is then impelled by a spring 63 and following impression and releasing of the pressure on the housing spring 180, Fig. 9, restores the carriage 26 and a spring 178 restores the crank 100 which through a unidirectional clutch drives a gear assembly of the respective ascending and descending registers 50, 51 which get locked by locking means 146, 147 when the preset postage value is exhausted. The registers are re-set at a post office in which the housing can be opened by a key (44, Fig. 5) which releases an interlock (39) holding the housing parts (35, Fig. 2) and 36 together.
Patent GB-1327953-A (GB)
Title: Tool-retaining means
IPC: F16B21/18
Filed: 1970-08-21
Abstract: 1327953 Pick holders AUSTIN HOY & CO Ltd 21 Aug 1970 40498/70 Addition to 1308298 Headings E1F and E2B; To facilitate insertion and removal of a shanked tool, e.g. a mineral-mining pick, into and from a holder I of the referred to specification 1308298 the latch 5 of said holder is now provided with a part 19, 20 that will, when the latch is mounted in the holder, project out from the holder to allow of it being engaged by a lever in order that the resilient portion 8 of the latch may be compressed by application of appropriate leverage to the part 19, 20 to cause the part 6 of the latch, which part normally lies across the shank-receiving socket 2 of the holder to press the tool shank when inserted into the socket against a wall thereof, to move clear of the socket. The part 19, 20 may be of T or V configuration and the limb or limbs 19 are integral with the part of the latch.
Patent GB-1329813-A (GB)
Title: Charging device for punch-presses
IPC: B21D43/24
Filed: 1971-06-09
Abstract: 1329813 Feeding sheets V K GILEV V D POPOV R T SARKISOV and E A STEPANIAN 9 June 1971 19627/71 Heading B8R A charging device for punch presses comprises a bedplate 1 on which is mounted a fixed platform, e.g. two guides (2), Fig. 2 (not shown), and an elevator table 3 for holding a cassette 5 of sheets and raising same as the sheets are fed, e.g. by suction or magnetic heads 6, from the cassette, a frame 7 having retainers, e.g. spring catches (8), Fig. 7 (not shown), serving to support the cassette after the table 3 has been raised a certain distance to permit lowering of the table 3 for a new cassette, and serving to subsequently lower the empty cassette 5 to the platform. The table 3 may be raised past a U-shaped frame 7 which is lowered to the platform on parallel links 14 via a rack and pinion arrangement when the cassette is spent, and then raised again before a new cassette, fed on to the table 3 by an hydraulic reciprocal motor 27, is raised with the table 3 by a screw jack 4. The catches (8) may have chamfered faces (11).
Patent GB-1330162-A (GB)
Title: Agricultural machine
IPC: A01D34/56
Filed: 1971-04-19
Abstract: 1330162 Harvester W THOMAS 19 April 1971 [17 April 1970] 18490/70 Heading A1F A harvester 1 towed behind a tractor 7 has a cutter 2 which rotates about a horizontal axis and is driven from the tractor p.t.o. through a bevel gear box 3 having an output shaft 5 in the same horizontal plane as the cutter axis and mounted on a platform 4 extending from the harvester to enable it to underlie a trailer 9 towed behind the same tractor. The cut crop is blown through a chute (not shown) into the trailer for making hay or wet silage.
Patent GB-1331149-A (GB)
Title: Ring spinning frames
IPC: D01H5/68
Filed: 1971-06-14
Abstract: 1331149 End catchers CARRIER DRYSYS Ltd 4 May 1972 [14 June 1971] 27697/71 Heading D1 [Also in Division E2] A three limbed bracket 13, 14, 15 is used to grip a suction head 7 in an operative or inoperative position adjacent the rollers of a ring spinning frame. The bracket is made of resilient material and comprises the three overlying integral limbs 13, 14, 15. The first limb 13 is connected by portion 18 to the second limb 14 and to the third limb 15, which extends between the other two limbs. The end 20 of the third limb 15 is contoured to grip a spigot 12 of the nozzles against a similarly contoured portion 21. The free end of the second limb 14 is similarly contoured to grip the spigot against the third limb. The third limb 15 can be formed of two parallel sections to grip the spigots of adjacent suction heads, Figure 3 not shown.