baber/WOPTO huggingface dataset:
Patent GB-903697-A (GB)
Title: Moulding press apparatus
IPC: B29C43/34
Filed: 1960-05-24
Abstract: 903,697. Compression-moulding machines. F. J. STOKES CORPORATION. May 24, 1960 [June 2, 1959], No. 18276/60. Class 87(2). A press 10, 11, having cavities 10a for the reception of moulding material, is provided with a moulding material pre-heater 21 having a heating chamber 27 with an opening in the bottom for the discharge of moulding material and a horizontally reciprocable feed board 47 with feed pockets 52, 53 for reception of material from said opening when the board is withdrawn from the press and discharge of material through their lower ends when the board is advanced into the press; a flat plate 37 being reciprocated to register an opening 55 therein with said opening in chamber 27 when the board 47 is withdrawn from the press. Particulate material such as a thermosetting resin is fed from hopper 20 into a metering chamber 21 provided with an adjustable gate 35 and then into chamber 27 heated by infrared lamp 41, where it is mixed by paddle 38. Plate 37 is moved to the right under the action of air cylinder 56 from the Fig. 1 position and heated material falls from chamber 27 through opening 55 into the first pocket 52, 53, closed at its lower end by plate 54. Board 47 is then extended to the left in two stages to fill the other pockets, and on a third extension the pockets are above cavities 10a and plate 54 is withdrawn. The moulded articles 18 are removed by pins 19 and comb 17, Specification 903,696 is referred to.
Patent GB-404551-A (GB)
Title: Improvements in or relating to the cooling or heating of rooms or vessels
IPC: F24F3/147
Filed: 1933-06-27
Abstract: 404,551. Refrigerating. RICHTER, A., 33, Hoppestrasse, Reinickendorf, Berlin. June 27, 1933, No. 18294. [Class 29.] Cold air machines.-A cold air machine of the open cycle type is provided with two regenerative heat-storing masses which take up heat and moisture from the compressed air in the cycle and give them up to the expanded air. A compressor 8 forces air through a cold regenerative mass 3 to an expansion motor 9 from which it passes into the cold space 1 through port 20. The air is cooled in the mass 3 and deposits moisture therein. To maintain equilibrium between spaces 1 and 2 air will flow through port 21 and the regenerator 33 to the port 22 leading to the warm space 2. This cold air is warmed in regenerator 33 and takes up moisture therein. The regenerators are mounted in piston valves 10 and 11 which are operated at short intervals to change the flow so that the regenerator which has been cooled and dried by the cold air flow is placed in the warm air flow and vice versa. In a modification two regenerators 26 and 27, Fig. 5, are mounted in one piston valve 25. Air is compressed by a piston 36 and then driven through the regenerators in succession to chamber 31 by the upward motion of piston 43. On downward motion of rod 41, Fig. 6, the compressed and cooled air is driven out through port 45 to the cool air space and air from this space is drawn through regenerator 26 by piston 43. Atmospheric air at the same time is being driven through regenerator 27 by the lowest of the three pistons on rod 41 to cool and dry it. By the reversal of connections the apparatus may be used for cooling or heating rooms. The regenerators are made of thin metal foil.
Patent GB-952610-A (GB)
Title: Electrical circuits employing negative resistance diodes
IPC: G06F7/501
Filed: 1960-05-24
Abstract: 952,610. Semi-conductor diode logic circuits. RADIO CORPORATION OF AMERICA. May 24, 1960 [May 28, 1959], No. 18305/60. Heading H3T. [Also in Division G4] The characteristic of a tunnel diode is modified by introducing a resistor in series with it. A full adder, Fig. 7, comprises two series connected tunnel diodes 30, 36 in parallel with a path containing a third tunnel diode 42 in series with a resistor 48, the resistance of which is equal to the negative resistance of the diode. A circuit is energized from a pulse type constant current source 50. The three inputs representing two binary signals to be added and any carry signal, are fed to the circuit via resistors 54, 56, 58 and the sum output is obtained from tunnel 45. The binary signals are arranged to coincide with the energizing pulses, the amplitude of which are adjusted such that with no input signals all three diodes are in their low voltage state, one input switches one diode to its high voltage state, two inputs switch two diodes to their high voltage state and three inputs switch all three to the high voltage state. These conditions correspond to the point 106, 108, 110, 112 in Fig. 8, the curve 100 being that of the diode 42 in series with resistor 48 and curve 102 being that of the two diodes 30, 36 considered as a load for the other part. The output voltage across resistor 48 is therefore alternatively high and low as required for the sum output of the full adder. The carry signal output is obtained from a further tunnel diode 80 also energized from a pulse source 96, the three inputs being arranged such that the presence of two or three inputs will switch the diode to its high voltage state to provide the necessary carry signal. If two or more such adder circuits are to be cascaded, the pulsed energizing supply may be used to ensure that the signals are transferred in the right direction by sequentially energizing the circuits. Specification 939,959 is referred to.
Patent GB-850853-A (GB)
Title: Improvements in percussion earth boring drills
Inventor: BASSINGER ROSS
IPC: E21B4/14
Filed: 1958-06-09
Abstract: 850,853. Earth boring drills. BASSINGER TOOL CO. June 9, 1958, No. 18321/58. Class 85..[Also in Group XXIII]. A pneumatically operable percussive rock drill comprises a hammer 10, a bit-carrying anvil 12, valve means 15, 16 for reciprocating the hammer in accordance with the movement thereof, through passages 45, 52 in said hammer and anvil which are adapted to be closed by members 44, 49 respectively and a slidable connection between the anvil and the casing permitting relative longitudinal movement between the member 49 and anvil to vary the frequency of the hammer strokes. The sliding connection comprises aligned splineways in the anvil and casing portions, bearing members 31 being disposed in said splineways. Each of the members 44, 49 may be provided with a sealing ring and the member 49 constitute a hollow stern, see Figs. 6 and 7 (not shown). The bit may be made integral with the anvil and the hammer may be made in two pieces. A check valve can be provided in the anvil passage, (see Figs. 9 and 10 not shown).
Patent GB-502722-A (GB)
Title: Improvements in or relating to electrical wave filters
IPC: H03H7/46
Filed: 1937-09-22
Abstract: 502,722. Impedance networks. CORK, E. C., and PAWSEY, J. L. Sept. 22, 1937, No. 18334 /38. Divided out of 488,254. [Class 40 (iii)] A filter for separating the sound-carrier from the picture-signal-carrier of a television receiver comprises a circuit 13, 14 tuned to the soundcarrier and coupled to a line 10, a quarter, or an odd number of, quarter wavelengths. long at the picture-signal-carrier frequency, the line being tapped onto the inductance 13 for matching the impedance of the circuit 13, 14 to that of the line.
Patent GB-1505468-A (GB)
Title: Fabric drafting and take-up apparatus
IPC: D04B15/88
Filed: 1976-05-05
Abstract: 1505468 Knitting machines JUMBERCA SA 5 May 1976 [13 May 1975] 18362/76 Heading D1C A circular knitting machine take up comprises one driven roller 2 flanked on one side by one and on the other side by two rollers 1, 3 and 4 which are movable bodily by manually operable means so that the rollers, whose axles all lie in the same plane, may be separate or in contact where they are all driven from roller 2 which is driven through a ratchet 24 and pawl 25 arrangement actuated from an undulating cam track 7 extending round the needle cylinder.
Patent GB-996577-A (GB)
Title: Improvements in self regulating reciprocating pumps in particular for the injection of fuel into engines
IPC: F02M41/12
Filed: 1962-05-14
Abstract: 996,577. Fuel injection pumps. POUR EXPLOITATION DES PROCEDE CHEINIQUES ET PHYSIQUES S.A. May 14, 1962 [May 26, 1961], No. 18371/62. Heading F1A. In a combined fuel injection pump and distributer comprising a reciprocable and rotatable piston 2 the delivery from which is terminated by the opening of a by-pass 11 by a spring- loaded shuttle 13 actuated by the delivery from an auxiliary piston 16, the return movement of the shuttle being controlled by an adjustably throttled passage 24 to produce a "liquid abutment" effect to vary the pump delivery according to engine speed, the delivery of auxiliary piston 16 is terminated before reaching top dead centre by the connection of cylinder 17 to a by-pass 26 via a groove 27 in piston 2 so that the auxiliary pump delivery occurs between the closure of an inlet 20 and the opening of bypass 26. Control of inlet 20 and by-pass 26 may alternatively be effected by the rotary action of piston 16 or of a part rigid therewith, or by a rotary element moving in synchronism therewith.
Patent GB-681700-A (GB)
Title: Improvements in or relating to sifting screens
IPC: B07B1/46
Filed: 1951-08-03
Abstract: 681,700. Wire fabrics. HEIN, LEHMANN & CO., AKT.-GES. Aug. 3, 1951 [Aug. 9, 1950], No. 18376/51. Class 45 A sifting screen is formed by the juxtaposition of shaped wires 1 to produce hexagonal or other shaped apertures, the parts 2 of the wires which are contiguous when the wires are juxtaposed being located one above the other to produce a step-like surface, the wire frame for each aperture being of uniform thickness when seen in plan view. The contiguous parts of the wires are welded together or connected by rings.
Patent GB-968207-A (GB)
Title: Signal measuring circuit
IPC: G01R17/16
Filed: 1961-05-19
Abstract: 968,207. Noise level measurements; determining characteristics of pulse trains; local circuits for meters. HEWLETT PACKARD CO. May 19, 1961 [May 31, 1960], No. 18412/61. Headings G1Q and G1U. In order to measure the difference between the average amplitude of two sets of pulses, two integrating circuits including capacitors 23 and 41 are provided with input gating arrangements so that pulses from each set respectively are supplied to the appropriate integrating circuit, the outputs from the integrating circuits being fed to a differential amplifier 29. The amplifier output is fed via a current meter 49 to one of the inputs, so that the meter indicates the difference between the two inputs, and a variable resistor 45 is included with the integrating circuit 41 so that the time constant of the circuit 41 may be varied. The two sets of pulses may be such that one represents the sum of the output of a local noise source and a receiver noise, while the other represents only the receiver noise, so that the difference in the average amplitude may be used to measure the noise figure. In the described embodiment the two pulse sets 57, 59 (Fig. 2) are fed to a common input 55 and thence to two transistor gates 13 and 31. These gates are opened at appropriate times by timing pulses A and B applied to the transistors 11 or 33 respectively which are thereby cut off, permitting the transistors 13 and 31 to conduct, thus feeding the pulses to the integrating circuits via the appropriate diode 21 or 37. The meter M may be adjusted for sensitivity using a variable resistor 51 and for zero position using a variable resistor 53.
Patent GB-982493-A (GB)
Title: Combine harvester
IPC: A01D41/12
Filed: 1963-05-09
Abstract: 982,493. Combine-harvesters. R. CLAAS. May 9, 1963 [Jan. 9, 1963], No.18413/63. Heading A1F. In order to increase the weight on the rear steerable wheels 14 of a combineharvester with a front header 11, a ballasttank 18 is mounted at the rear of the machine to move the centre of gravity rearwardly. As shown, ballast tank 18 is incorporated in the hood 17 of the strawoutlet. The tank has upper and lower orifices for the entry and discharge of ballast which may comprise sand, stones or water. If water is used, the tank may include a pump for emptying. To enable the addition of accessories such as a chaffcutter or straw-baler, ballast-tanks may be provided at other places around the rear end of the machine.
Patent GB-637197-A (GB)
Title: Buckle
IPC: A44B11/02
Filed: 1947-07-11
Abstract: 637,197. Buckles. MEFFORD, F. E. July 11, 1947, No. 18426. Convention date, Jan. 1, 1944. [Class 43] A buckle, particularly for use in tourniquets, comprises a single length of wire having one or more curved or angular U bends in it, the ends of the wire being formed into oblong loops which lie one over the other in alignment with the U or U's. A single length of wire has two intermediate U bends 1, 1A, the ends of the wire being bent into oblong loops 2, 3, which lie one over the other, the loop 2 being narrower than the loop 3 so that gaps are left between the sides A, C and B, D of the loops. In another form the bend 1A is dispensed with. In use the ends E, F of the web 4 are passed up through both loops and then the end E is returned through the gap between the sides A, C, the end F being returned through the gap between the sides B, D. The ends may be pulled simultaneously or separately to tighten the tourniquet, release of either end being effected by lifting the appropriate U bend 1A or 1 In a modification, Fig. 7, the side B of the narrow loop 2 lies over the side D of the loop 3 leaving only one gap between the sides of the loops, i.e. between the sides A, C ; one end of the web is looped round the side C and secured, e.g. by stitching, the other end being passed up through the loop 3 only and returned through both loops. Alternatively, in a buckle similar to this modification but having a single, angular U bend, one end of the web is passed up through both loops, returned through the U bend, and secured, e.g. by stitching the other end being passed up through both loops and returned through the loop 3. The web is released by tilting the buckle upwards.
Patent GB-1422306-A (GB)
Title: Flash bulb
IPC: F21K5/14
Filed: 1974-04-26
Abstract: 1422306 Flash-bulbs PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES Ltd 26 April 1974 [1 May 1973] 18435/74 Heading G2L A flash-bulb containing shredded zirconium foil and having an internal diameter of 6 mm or less is characterized in that each shred has a length at least equal to the internal diameter of the bulb, the number of shreds is between 1.5 and 2.5 times the bulb volume in cubic mm, and the maximum volume of any shred is 0À015 cubic mm. Preferably the bulb volume is between 0À1 and 0À5 cc, the weight of zirconium is between 12 and 30 mg, and the maximum pressure of the oxygen in the bulb is 35 atmospheres.
Patent GB-444096-A (GB)
Title: Improvements in and relating to wringers
IPC: D06F45/00
Filed: 1935-06-28
Abstract: 444,096. Wringers. RYCKMAN, N. E., 77, Niagara Street, Hamilton, Ontario, Canada. June 28, 1935, No. 18570. [Class 138 (ii)] Pressure is applied to the rollers of a wringer by a cam 46 acting on a spring 52 which engages the bearing blocks 53, 54 of the upper roller which are slidably mounted on rods 57 rising from the bearing blocks of the lower roller. When the pressure is released, the upper roller is caused to rise by springs 59A surrounding the rods 57. The shaft 37 on which the cam is secured is rotated from an external handle 32 on a shaft 33 having a spur gear 35 engaging a segment gear 36 loose on the shaft 37 and provided with lugs which engage, with 180‹ lost motion, a driving lug 40 fast on the shaft 37. The bearing block 54 engages a spring-pressed triangular detent member 66 pivoted in a pivoted yoke 63 which actuates a clutch 62 slidably mounted on the shaft of the lower roller whereby, as the pressure is released by rotation of the lever 32, the drive to the lower roller shaft is simultaneously and automatically broken. The direction of rotation is controlled by a lever 75 which operates a slidable sleeve 74 to engage one or other of the bevel wheels 71, 72 with the horizontal bevel wheel 69. The movement of the sleeve 74 also actuates a clutch mechanism to swing the water deflecting tray in the appropriate direction and to permit the positioning of one of a pair of guard plates extending along the front of the rollers and cause the remote guard plate of the pair to swing upwardly away from the rollers. The looking arm 102 for securing the wringer head to the standard 31 rising from the washing-machine can be released only when the lever 75 is in neutral position with the drive from the bevel wheels 71, 72 disconnected.
Patent GB-729391-A (GB)
Title: Colour television synchronizing circuits
IPC: H04N9/455
Filed: 1953-07-03
Abstract: 729,391. Automatic phase control systems. RADIO CORPORATION OF AMERICA. July 3, 1953 [July 25, 1952], No. 18592/53. Glass 38 (4). In a colour television system in which colour signals are produced by amplitude modulation of different phases of a colour sub-carrier intermittent bursts of the sub-carrier of fixed phase are transmitted during line flyback periods for synchronizing a local colour oscillator 44 at the receiver and are applied at the receiver to a grid 72 of a synchronous detecter valve 70 to the same grid of which the colour signal is applied during the line scan. To another grid 71 at the same time are applied controlled oscillations from the local colour oscillator normally in phase quadrature with the synchronizing oscillations and the variable output across the anode load resistor 78 is applied through a D.C. voltage reducer 82, 83 to a switching circuit 90 closed only during the synchronizing, bursts by keying pulses derived from a flip-flop 104 triggered to its unstable condition by line synchronizing or flyback pulses, a width control 106 being provided so that keying pulses are present only during the burst interval following the line synchronizing pulses. The change in D.C. potential at the output of the switching circuit 90 is then applied over an integrating or smoothing circuit 108 to the grid of a reactance tube 81 controlling the phase of the oscillator 44. The integrating circuit may have a time constant as great as a frame scanning period so that, phase drift of the oscillator 44 normally being slow, noise during burst intervals is averaged out over a large number of lines. A buffer amplifier 48 may be between the oscillator 44 and synchronous detector 70. The switching circuit, as shown, comprises oppositely poled rectifiers 92, 96 normally biased to blocked condition from a negative source 84 in series with equal resistors 94, 98 forming oppositely conducting arms connected in parallel between the input 85 and output 89 of the switching circuit, keying pulses of equal amplitude but opposite sign from the flip-flop 104 being applied to render the arms conductive. The D.C. voltage reducer 82, 83 comprises voltage regulating tubes 82 or a battery, but may be dispensed with by applying negative operating to the synchronous detector 70 or operating the reactance tube and oscillator with more positive potential.
Patent GB-1337859-A (GB)
Title: Electrical motors
IPC: H02K37/14
Filed: 1971-06-02
Abstract: 1337859 Electric motors SIEMENS AG 2 June 1971 [3 June 1970] 18686/71 Heading H2A In an electric motor comprising two pole members 4, 5, each having a plurality of polepieces 4a, 5a, all of the polepieces are located in slots 3c, 3b, in a hollow, cylindrical stator winding support 3 and the polepieces of one pole member are wider than those of the other, the motor further comprising a thrust bearing against which the rotor is pressed by a resultant axial magnetic force acting on the rotor. In the motor shown, the poles 4a are wider than the poles 5a to produce the resultant axial force acting on the rotor and are displaced from the poles 5a by less than 180 electrical degrees to give the rotor a preferred direction of rotation. The stator winding support 3 is of plastics material and is formed integrally with a transverse wall 3d acting as the thrust bearing. The rotor 6 is a permanent magnet.
Patent GB-274490-A (GB)
Title: A process for preparing a cold glue powder
IPC: C09J189/00
Filed: 1927-07-14
Abstract: 274,490. Honsch, G. July 16, 1926, [Convention date]. Adhesives.-Cold glue powders, which, when mixed with cold water, form glue solutions are obtained by mixing powdered animal glue with powdered colloid-liquefying materials, of a neutral or weakly acidic nature and dressing, drying, or cement-like solidifying materials. Suitable liquefying materials comprise most of the organic and inorganic chlorides, certain nitrates, sulphonic acids and their salts, solid inorganic and certain organic acids and their salts such as boric, oxalic, salicylic, and phthalic acids, other than the alkali salts of salicylic acid and benzene and naphthalene sulphonic acids. In examples (1) Powdered glue is mixed with 20 per cent of oxalic acid and 10 per cent of quartz powder. (2) 70 parts of powdered glue are mixed with 20 parts by weight of calcium nitrate and 10 parts of magnesium carbonate or uncalcined magnesite. These powders form viscous glue solutions with twice their weight of cold water. Cooking salt or zinc ammonium chloride may replace the liquefying agents referred to in the examples and magnesium carbonate may be replaced by alum, aluminium sulphate, aldehydes or their addition or condensation products, or siccatives such as manganese borate. The Specification as open to inspection under Sect. 91 (3) (a) describes the inclusion of drying, dressing &c. agents as optional, and does not exclude the use of alkali salts of salicylic, benzene sulphonic and naphthalene sulphonic acids. This subject-matter does not appear in the Specification as accepted.
Patent GB-298927-A (GB)
Title: Improvements in machines for cutting off strips or lengths of metal
IPC: B23D45/00
Filed: 1927-07-15
Abstract: 298,927. Smith, Ltd., D., and Smith, D. July 15, 1927. Circular - saw machines.-Exact lengths are cut from coiled metal bar stock by a cutter such as a circular saw 13 carried by a pivoted frame 14 and arranged to pass between registering slots in feed rollers 2, 3, which are rotated by a chain 19 passing over a sprocket wheel 22 mounted on a shaft 25, which is driven by a worm 23 and is provided with a one-revolution stop under the control of a pedal rod 27. The frame 14 is rocked by a lever 30, and the stock is coiled over a pin 28. The rims of the rollers 2, 3 may be roughened or rubber-faced, and the slots are so set that the advancing end of the stock is gripped by the rollers. The saw-driving gearing is mounted in the frame 14.
Patent GB-879908-A (GB)
Title: Improvements in and relating to apparatus for controlling the feed in reciprocating cold rolling mills
Inventor: ZIELKE SIEGFRIED
IPC: B21B21/04
Filed: 1958-06-12
Abstract: 879,908. Valves. SCHWERMASCHINENBAU H. RAU WILDAU VEB. June 12, 1958 No. 18830/58. Class 135. [Also in Group XXII] In apparatus for controlling the hydraulically effected stepwise feed in reciprocating coldrolling mills, the hydraulic pressure is controlled by a rotary valve. A rotary sleeve valve 2 is rotated in a control block 1 at a constant speed derived from the mill stand, a half revolution of the valve corresponding to a full crank angle of 360 degrees of the mill stand. A supply line 4 from which pressure oil is introduced into a cylinder chamber 5 to advance a piston 6 is periodically opened by the valve which has an aperture 3 shaped to admit a controllable amount of oil according to the axial position of the valve as adjusted by a spindle 7.
Patent GB-185904-A (GB)
Title: Improvements in folding or camp bedsteads
IPC: A47C19/14
Filed: 1921-07-12
Abstract: 185,904. Baveystock, A. R. H. July 12, 1921. Matiresses.-In a folding bedstead, the sides of the canvas bottom a are provided with keyholeshaped loops g which detachably engage the screws, bolts, or rivets d forming the pivotal connections at the upper ends of the legs c.