baber/WOPTO huggingface dataset:
Patent GB-522804-A (GB)
Title: An improved folding foot rule
IPC: G01B3/06
Filed: 1938-12-16
Abstract: 522,804. Measures of length. ANDERSEN, E. P. Dec. 16, 1938, No. 36742. [Class 106 (ii)] A folding rule or the kind comprising at least four sections 1a, 1b, 1c, 1d of substantially equal length pivoted together by spring joints 2a, 2b, 2c &c. and in some of which sections there are arranged clasp member parts for holding two sections at a predetermined angle, has one clasp member 3 arranged at a terminal section and the other clasp part 4 in the fourth succeeding section and in one or several of the following sections. The angle may be a right angle, and the device used as a square.
Patent GB-507403-A (GB)
Title: Improvements in pneumatic tyres
IPC: B60C23/18
Filed: 1938-12-16
Abstract: 507,403. Pneumatic tyres. CLAYTON, T. A. (United States Rubber Co.). Dec. 16, 1938, No. 36767. [Class 144 (ii)] A tyre tread is formed with air-ducts wholly or in part oblique to the tyre axis and opening at the forward and rear faces of spaced projections at the side of the tread. In the form shown in Figs. 1 and 2, straight ducts 17 extend between the faces 16a, 16b of triangular projections 16 on the tyre. In a modification, the ducts 17 are intersected by a pair of continuous passages extending around the tyre. Fig. 6 shows a further modification in which oppositely-inclined ducts 23, 24 extend from the faces 16a, 16b to circumferential passages 21, 22.
Patent GB-1002863-A (GB)
Title: Improved pumping assembly for pumping slurries
IPC: F04B9/137
Filed: 1963-09-19
Abstract: 1,002,863. Reciprocating pumps. EDWARD L. BATEMAN Ltd. Sept. 19, 1963 [Oct. 31, 1962], No. 36895/63. Heading F1A. A pumping system for pumping slurries from inlets A4, B4, fed by gravity from an elevated supply tank 11, to an outlet main 10 comprises a pair of diaphragm pumps A, B, operated by pressure liquid supplied by a pump 16 alternatively through connections A7, B7, by a valve 14. Continuous delivery through the main 10 is assured by the valve 14 producing an overlap period in which pressure liquid is supplied to both pumps. The slurry, formed in the chamber 11, is supplied to settling tanks A5, B5, connected through non-return valves A6, B6, to the inlets A4, B4. The valve 14, which may be operated by a timing device 19 or by the motion of the diaphragms, comprises an oscillating plug 25, Fig. 3, which in the position shown supplies pressurised liquid from port 21, to the outlet ports 21, 22 leading to the pumps. As the plug oscillates pressure liquid is supplied to port 21 to operate pump A while port 22 is connected to the exhaust port 23 to allow slurry to fill the pump chamber B by gravity from settling tank B5. A settling period is allowed at the end of each filling period so that when the slurry is discharged through the non-return valves A3, B3, the last portion discharged is substantially clear liquid which flushes the valve seats and allows them to reseat. The chambers A5, B5, are filled through valves A16, B16 controlled by means 26 responsive to pressure on the pumps A, B, so that the valves cannot open while the chambers A5, B5, are emptying. The resettling, arrangements may be omitted by supplying water to clear the seats of the non- return valves A3, A6, B3, B6 after each operation.
Patent GB-1176638-A (GB)
Title: Self-Starting Oscillator.
IPC: H03K3/284
Filed: 1968-08-02
Abstract: 1,176,638. Oscillators. WESTINGHOUSE ELECTRIC CORP. 2 Aug., 1968 [18 Sept., 1967], No. 36998/68. Heading H3T. Monostable circuits 10, 20 each have an output T0, T0<SP>1</SP>, coupled to the input of the other monostable so that the arrangement is freerunning, and both also have complementary outputs TC, TC<SP>1</SP>, coupled to a logic circuit 30 whose output T2 is connected to one monostable 10 to initiate oscillations upon switch-on of the voltage supply V + . The monostable 10 (20 is similar) has normally ON transistors Q1, Q2 and normally OFF transistors, Q3, Q4, Q5. Transistors Q6, Q7 trigger the monostable and constitute effectively a further monostable circuit in which a negative pulse through a diode D4 turns OFF the normally ON transistor Q6 which turns ON the normally OFF transistor Q7 for a period dependent upon a capacitor C1 and a resistor R11. When Q7 is thus turned ON, the junction J2 of diodes D3, D5 falls in potential and via a capacitor C2 turns OFF the transistors Q1 and Q2 which turn ON the transistors Q3, Q4, Q5 for a period dependent upon capacitors C2, CX and a resistor R12. When Q1 and Q2 turn ON again, a negative-going pulse is applied through a diode D4<SP>1</SP> to the other monostable circuit 20 whose consequent operation is as first described for 10. Upon initial switch on of the supply V + , both outputs T0, T0<SP>1</SP> are the same, whereupon a NAND gate constituting the logic circuit 30 produces a negative-going pulse over diodes D2, D1 to turn OFF Q1 and Q2. The transistors Q3, Q4, Q5 consequently turn ON and the complementary output TC to the NAND gate 30 becomes different from the other complementary output TC<SP>1</SP>, so that the NAND output T2 disappears causing Q1 and Q2 to turn ON and produce the negative-going pulse required to trigger the monostable 20. Thereafter the complete circuit oscillates continuously.
Patent GB-1435511-A (GB)
Title: Valve loading springs with load correcting devices
IPC: F16F1/12
Filed: 1972-08-09
Abstract: 1435511 Helical springs HOPKINSONS Ltd 30 July 1973 [9 Aug 1972] 37122/72 Heading F2S An end connector for a helical spring 7 comprises a plate 8 with a plurality of screws 10 adjustably mounted in it. The screws, of which there are three, abut the end coil 6 of the spring and are individually adjusted to accommodate non-axial loading of the spring. A screw 11 ensures correct angular orientation of the end coil 6 with respect to the plate 8. The spring 7 biases a valve element of a relief valve, of which only the valve spindle 9 is shown.
Patent GB-1403995-A (GB)
Title: Circuit for supplying welding current to arc welding apparatus
IPC: B23K9/09
Filed: 1972-08-09
Abstract: 1403995 Welding by fusion S PAULANGE 9 Aug 1972 [1 Oct 1971] 37145/72 Heading B3R [Also in Division H2] A circuit for supplying welding current to arc welding (particularly TIG) apparatus comprises a single phase source 9 which includes the secondary winding 10 of a transformer, and a three phase source 1 which includes the three secondary windings 2, 3, 4 of a transformer, the outputs of the sources being regulated and connected in parallel, the output of the three phase source being supplied via a rectifier 5 to the welding electrodes 15, 15a whilst the output of the single phase source is supplied to the welding electrodes either directly or via a periodically operated circuit breaker 14, 14a and a rectifier 13. The current supplied by each source is regulated by saturable self-inductances 6, 7, 8, 11 and when a contactor 12 is closed, the D.C. supplied by the source 1 is superimposed on the A.C. supplied by the source 9 to provide a sinusoidal welding current of positive polarity. When the contactor 12 is open the thyristors 14, 14a and the rectifiers 13 enable the source 9 to supply a pulsed current of square waveform. Alternatively the A.C. supplied by the source 9 may be amplitude modulated by the inductance 11 or a high intensity constant welding current may be obtained by superimposing the constant level, rectified outputs of each source.
Patent GB-1120893-A (GB)
Title: Improvements in or relating to electromechanical printers
Inventor: FIELDER ALBERT LEONARD
IPC: B41J1/20
Filed: 1964-09-11
Abstract: 1,120,893. Selective printing. MARCONI CO. Ltd. 23 Aug., 1965 [11 Sept., 1964], No. 37264/64. Heading B6F. Type-wheel machines; hammer impression arrangements. A continuously rotatable type carrier 1, Fig. 1 (not shown) having a number of rows of like type characters extending along the width of the printing line is provided with a hammer mechanism which comprises a belt 7, on whose outer run are mounted three hammer housings 2, 5, 6, Fig. 2, each incorporating a hammer head 15, Fig. 3 (not shown) attached to a slidable shaft 16 biased in the restoring direction by a spring and forced into impression position by a common bar 18 Fig. 4 (not shown) corresponding to the length of a printed line and actuated by an electromagnet 19. The hammer housings are spaced from one another by the length of a print line and the belt is provided on the inner run with protrusions 10 which co-act with fluted recesses on wheels 8, 9 the former of which is driven by a ratchet and pawl mechanism to advance the hammer belt incrementally by a letter space. To return the hammers quickly to the line start position on completion of a paragraph i.e. of a line which is not of a full length the wheel 9 is attached to a crank rod 12 which is pulled in the direction of the arrow by an electromagnet 14 to rotate the wheel 9 either in the clockwise or anticlockwise direction to move either the hammer in use or the next hammer to the line starting position, depending on whether or not the crank rod 12 has passed its outer dead centre i.e. whether or not the hammer in use has travelled through a smaller or greater distance than half a printing line. The electromagnet overrides the pawl and ratchet drive of the wheel 8. Type-band machines. The continuously rotatable type carrier may be replaced by a continuously moving typeband, belt or chain.
Patent GB-619653-A (GB)
Title: Improvements relating to guards for door and like locks
IPC: E05B13/00
Filed: 1946-12-18
Abstract: 619,653. Latch &c. knob guards. DUFFY, T. J. Dec. 18, 1946, No. 37341. [Class 44] A device for preventing when desired access to the inside knob E of a door-lock comprises an incomplete box-like shield A permanently secured to the door, e.g. by flanges, inserted behind the lock casing, the open front and side of the shield being adapted to be closed by sliding an L-shaped member J into channels K on the front of the shield ; the side limb of the member J is provided with an aperture L to permit passage of the bolt I and is retained in its operative position. when the bolt is shot by engagement between the free edge and the fixed frame of the door. The shield may be reinforced by a tie member Q. The member J may be connected to the shield A by a chain or the like.
Patent GB-1273558-A (GB)
Title: Shaping of frozen foodstuffs
Inventor: MARSHALL ROBERT SWINBURN
IPC: A22C25/20
Filed: 1968-08-05
Abstract: 1,273,558. Moulding foodstuffs. UNILEVER Ltd. 31 July, 1969 [5 Aug., 1968], No. 37342/68. Heading B5A. [Also in Division F4] Frozen food is moulded to unit portions in a mould one part of which is formed of ice. The term ice includes frozen aqueous suspensions or solutions, dry ice or snow. The mould is in two parts and in one form the upper part 21 is a flat metal or a plastics plate the lower part 22 having filling and vent apertures 27, 28 in the ice. Shredded cellulose may be used to strengthen the ice or the ice may be formed on a framework of metal or plastics. The ice moulds are made in a master die of cast or other metal, or of a plastic. The master die may be in the form of an inflatable bag. After use, the ice mould may be melted down and the liquid filtered and sterilized before re-use.
Patent GB-1531735-A (GB)
Title: Bipolar logic circuits
IPC: H03K19/091
Filed: 1975-09-11
Abstract: 1531735 Integrated circuits SIEMENS AG 11 Sept 1975 [30 Sept 1974] 37352/75 Heading H1K A bipolar logic circuit comprises, in an epitaxial layer 4 on a semi-conductor substrate, a lateral bipolar transistor 1, a collector region 15 of which also constitutes the base region of an inwardly-operated vertical bipolar transistor 2. The epitaxial layer 4 itself constitutes the base 12 of the lateral transistor 1 and the emitter 23 of the vertical transistor 2, and is preferably earthed, the emitter region 11 of the lateral transistor 1 being connected to a voltage supply line. The vertical transistor 2 has at least two collector regions 21, 22 which provide the outputs from the circuit. The lateral transistor 1 has, in addition to the "output" collector 15, two "control" collectors 13, 14 located between the collector 15 and the emitter 11 and forming the circuit inputs. If a buried layer is present below the epitaxial layer 4 the regions 11, 13, 14 and 15 do not extend down to nest it. Two preferably earthed auxiliary collector regions 6 alongside the transistors 1, 2 serve to withdraw excess charge carriers. In a modification (Figs. 3 and 4, not shown) the collectors 14, 15 of the lateral transistor are combined as a single region. In a further modification of the Fig. 2 embodiment the collector 13 may be omitted and replaced by a further collector alongside the collector 14.
Patent GB-1240557-A (GB)
Title: Solid non-caking food compositions
IPC: A23L1/00
Filed: 1969-07-24
Abstract: 1,240,557. Foods. CPC INTERNATIONAL Inc. 24 July, 1969 [24 July, 1968], No. 37371/69. Heading A2B. A normally hygroscopic food is rendered less hygroscopic by intimately admixing therewith a starch hydrolysate having dextrose equivalent of 5-25 and a descriptive ratio of at least 2. The descriptive ratio is the quotient obtained by dividing the sum of the percentages of saccharides, dry basis, having a degree of polymerisation of 1-6 by the dextrose equivalent. The food may may be an acid hydrolysed protein (e.g. casein or protein derived from wheat, soya or corn), dried tomato pastes, dried honey, dried fruit purees or dried beef bouillon. The starch hydrolysate may be prepared by hydrolysing a starch (e.g. waxy, corn, potato, tapioca or grain sorghum starch) with acid or enzyme (e.g. α-amylase). The food and starch hydrolysate may be formed into an aqueous solution, suspension or paste and then dried (e.g. spray drying or drum drying).
Patent GB-876041-A (GB)
Title: Improvements in or relating to organosilicon rubber
Filed: 1959-11-04
Abstract: A vulcanizable composition comprises (1) a siloxane copolymer consisting essentially of (a) from 7,5-14,95 mol per cent of units of the formula: <FORM:0876041/IV (a)/1> where x, y and z are each 0 or 1, the sum of x+z being 0 or 1 and the sum of y+z being 1, and (b) from 85-92,45 mol per cent of R2SiO units, where each R is an alkyl or aryl radical, there being a maximum of 9,95% by weight of F in the copolymer, (2) a filler, and (3) a vulcanizing agent.  The copolymers may also contain other units such as (CH3)3SiO0,5 or: (CH3)2(CH2=CH)SiO0,5, R1CH3SiO, where R1 is an alkenyl (preferably vinyl) radical, and siloxane units containing ethyl, propyl, butyl, phenyl, mono- or di-chlorophenyl or trifluorotolyl radicals.  Fillers specified are SiO2(fume, aerogel and surface modified), asbestos, clays, ground glass, fibre glass, C black, TiO2, ZnO, ZrO, Fe2O3 and Cr2O3.  Vulcanization can b effected by ionizing radiation or by the use of vulcanizing agents, preferably benzoyl-, 2 : 4-di-chlorobenzoyl- and cumyl-peroxides and t-butyl-perbenzoate and -peracetate; other vulcanizing systems include combinations of OH-terminated siloxane copolymers with alkyl polysilicates and as catalysts metal salts such as lead 2-ethyl hexoate or dibutyltindiacetate; siloxanes containing Si-H with OH-terminated siloxanes and catalysts such as lead naphthanate or dibutyltindiacetate or chloro-platinic acid.  The compositions may also contain compression set additives, e.g. HgO, additives to improve thermal stability, e.g. Fe and Co octoates, and additives for improving storage life, e.g. organic hydroxy compounds and OH-terminated siloxanes.  In a typical Example (1) (Me=methyl, Vi=vinyl) copolymers were made in known manner by heating a mixture of (MeViSiO)4, (CF3,CH2, CH2,MeSiO)3, (Me2SiO)4, and ViMe2SiO (Me2 SiO)4SiViMe2 with potassium silanolate, and each copolymer was compounded by milling with fume silica, an OH-terminated dimethylsiloxane, and pastes of Fe2O3 and benzoyl peroxide in liquid dimethyl siloxanes, and cured by press heating for 5 minutes at 125 DEG C. with an after-cure at 250 DEG C. for 6 hours.  Uses: for making gaskets and hoses in fuel, hydraulic and lubricating systems. Specifications 682,540 and 802,359 are referred to.
Patent GB-893873-A (GB)
Title: Improvements in and relating to flow meters
Inventor: ILSLEY CHRISTOPHER JOHN
IPC: G01F1/80
Filed: 1957-12-02
Abstract: 893,873. Measuring fluid flow. GLOSTER AIRCRAFT CO. Ltd. Nov. 25, 1958 [Dec. 2, 1957], No. 37545/57. Class 69 (1). [Also in Groups XXXV and XXXVIII] The rate of flow of fluid in a duct is measured by means of an impeller which imparts a tangential velocity to the fluid and a member downstream of the impeller which moves in response to the tangential velocity, the impeller having a magnetic member co-operating with a permanent magnet adapted to be rotated by a drive means. In Fig. 1 the duct comprises two members 1, 2 held together by fluid-tight seals and contains a turbine 11 and an impeller 10 on a support 9. The impeller is driven by an A.C. motor 14 in a fluid-tight casing, the drive being communicated by a magnetic coupling comprising a rotating cylindrical magnet 19 and a plurality of magnetic members 23, 24 attached to the impeller. Fluid enters at the right-hand end, passes through ducts 25 and is discharged from the impeller at an angle so that its velocity has a tangential component. The issuing fluid exerts a force on the turbine 11 against a biasing spring 29 and turns it through an angle depending on the mass rate of flow. The angle is measured by magnetic members 32 co-operating with solenoids 33 (see Group XXXVIII). To prevent hydraulic coupling between the impeller and the turbine, the fluid is constrained to flow in an annular path between an outer baffle 20 fixed to the casing and an inner baffle 31 on the turbine. The impeller shaft also carries a tachogenerator whose output serves to maintain the impeller speed constant. In an aircraft installation (Fig. 2, not shown) the outputs from two such flowmeters are passed to individual indicators and to a combined indicator to show the rate of flow and total flow for each engine and for both engines respectively. In a modification the torque input to the impeller is measured in terms of the deflection of a spring coupling in the drive thereto. A slightly different arrangement of the parts appears in Fig. 1 of the drawings accompanying the Provisional Specification (not shown here).
Patent GB-965749-A (GB)
Title: Improvements relating to devices for dividing numbers
Inventor: SYMONS MICHAEL
IPC: G06F7/52
Filed: 1959-11-07
Abstract: 965, 749. Digital electric calculating-apparatus. ELECTRIC & MUSICAL INDUSTRIES Ltd. Oct. 31, 1960 [Nov. 7, 1959], No. 37815/59. Heading G4A. A circuit arrangement for dividing a dividend by a predetermined number comprises means for receiving signal elements representing digits of the dividend in serial or parallel mode and means for controlling the passage of a marker signal at a series of points at which the marker signal may take one or other of at least two paths, the arrangement of the paths being such that the quotient can be determined by the paths through which the marker signal has been passed and the remainder can be determined by the path to which the marker signal is passed in response to the last of said signal elements. The arrangement may be applied to code conversion. In a first embodiment for division of a dividend by ten, Fig. 1, an initiating pulse constituting a marker signal is applied at B to a gate G 0  and circulates through G 0  and a one-digit delay D 0 . The input dividend is applied at A in serial binary form, most significant digit first, to gates G 0 -G 9 , inhibitively to the even numbered gates and directly to the odd numbered gates. Because of the connections from the outputs of one-digit delays D 0 -D 9  to pairs of the gates G 0 -G 9 , the marker pulse is transferred between the various circulatory loops such as G 0 , D 0 ; G 1 , D 1  &c., outputs from the delays D 5 -D 9  being connected to a lead F on which the required divisor will appear in serial binary form. The remainder is determined by which of the loops G r , D r  contains the circulating marker pulse when the division has been concluded. The remainder may be obtained in binary form from a diode code converter H. Modifications for division by numbers of the form 2<SP>P</SP> x R<SP>q</SP> are described. In a second embodiment (Fig. 2, not shown) the dividend is applied in parallel to groups of gates to control the passage therethrough of a marker pulse which is routed to mark appropriate parallel output quotient lines and one of a plurality of output remainder lines. Specification 893, 355 is referred to.
Patent GB-868029-A (GB)
Title: Improvements in or relating to refrigerating systems
Inventor: BURY HARRY
IPC: F25B25/00
Filed: 1958-11-25
Abstract: 868,029. Refrigerating. GENERAL ELECTRIC CO. Ltd. Nov. 25, 1959 [Nov. 25, 1958], No. 37931/58. Class 29 The generator 3 of a continuous cycle absorption system is heated by thermoelectric heat pump, the cold junctions of which cool the condenser 5 or rectifier 4. As shown thermoelectric heat pumps 10, 11 cool both the rectifier and the condenser and their hot junctions are cooled by heat exchangers 12, 15 through which liquid is circulated by pumps 13, 16 to heating coils 14, 17 in the generator. Heat may also be similarly transferred to the generator from the absorber 1. Heat may be conveyed to the cold junctions by a liquid circulating system instead of directly.
Patent GB-1404007-A (GB)
Title: Apparatus for treating an ac signal to produce a modified ac signal
IPC: G10L21/00
Filed: 1972-08-15
Abstract: 1404007 Secret transmission R F KOCH 15 Aug 1972 [28 Sept 1971] 37966/72 Heading H4R In apparatus for independently modifying the speed and pitch of A.C. signals, e.g. representing speech or music, the incoming signals are divided into successive segments which are temporarily stored and portions of the stored segments are discarded or repeated during read-out.  As shown in Fig. 4, an incoming audio signal, which may be from a line performance or recording, is sampled at 72 at a selected rate and each sample is converted into an 8-bit digital word which is held in a buffer 74 until the next sample is taken. The sampling rate may be synchronized with the transport rate of the recording, if used. The content of the buffer 74 is transferred to the memory 84 under the control of a logic circuit 78 which interlaces the functions of writing into and reading out from the memory 84, giving priority to reading. Alternatively priority may be given to writing or be on a first come first served basis. Read-out from the memory 84 is at a rate controlled by a variable clock 77 and is via a second buffer 86 in which 1, 2, 3 or 4 least significant bits, as selected by resolution selector 89, may be dropped before conversion at 88 into an audio signal output. The lengths of the segments and the portions to be discarded or repeated are selectable, the latter being determined by the levels between which a read address counter cycles, the starting level being constant or quasi-random as determined by the 6 least significant digits in the buffer 86. The writing and read clock rates may be compared at 95 using an up/down counter stepped up by write clock pulses and down by read clock pulses for controlling the relative rates of writing and reading. Discarded portions may be fed to a second output channel, e.g. for dichotic presentation to respective ear phones of a head set. Two or three memories may be provided, Figs. 9 and 10, not shown, reading and writing occurring simultaneously from different memories, the memories changing functions from time to time. The logic circuits are described in detail, Figs. 5 to 8, not shown. The memories may be magnetic cores, bucket-brigade semiconductor memories, scan conversion tubes, ultrasonic light modulators, surface acoustic wave delay lines or photo-chromic stores.