baber/WOPTO huggingface dataset:
Patent GB-670418-A (GB)
Title: Instrument case constructions applicable to pneumatically operated control valves
IPC: F15B13/02
Filed: 1947-05-07
Abstract: 670,418. Fluid-pressure servomotor-control systems. FOXBORO CO. May 7, 1947 [Aug. 21, 1946], No. 12385/47. Class 135. Fluid-pressure servomotor-control mechanism, as: described in Specification 670,419, is housed in a two-part casing consisting of a removable main case: and a fixed sub-case to facilitate removal of the automatic control mechanism and manual control of the controlled device, e.g. a pneumaticallyoperated valve, after such removal. The sub-case 68, Fig. 7, is secured to an opening in a panel 70 and carries a transfer valve 90 by which the controlled device, connected to an output pipe 112, may be controlled either by the automatic mechanism 22, 24, Fig. 1, housed in the main case 20, or by a manually-operated pressure-regulating valve 96 carried by the sub-case. The main case, which is provided with holes to permit observation of a pressure gauge on the transfer valve and to allow the passage of the operating shafts of the transfer and pressure-regulating valves, is removably attached to the panel 70 and, by screws 64, 66, to the sub-case. Connection blocks 32, 124 facilitate the disconnection of pipes between the transfer valve and the automatic control mechanism.
Patent GB-1065411-A (GB)
Title: Improved ferroelectric device, and/or piezoelectric device; and method for the manufacture of same
IPC: H01G7/02
Filed: 1964-03-24
Abstract: A piezo-electric element comprises a compact mass of small adjacent acicular crystals of V-VI-VII compound, where V is As, SG, Bi, VI is O, S, Se, Te, and VII is Cl, B, or I the crystals having their long axes lying in a common direction, transverse to the major surfaces of the device.  The mass may be prepared by gradient freezing a molten mass e.g. by lowering a glass ampoule containing the material at 1 mm/hr in a two-zone furnace; the ingot then being embedded in a plastic and sliced in a direction transverse to the long axis of the crystals, and electrodes deposited on the cut surfaces.  A preferred material is Sb Sx O(1-x) I, where x is above 0.7.  The elements may be used e.g. for a stereophonic phonograph pickup.
Patent GB-582657-A (GB)
Title: Improvements relating to painter's or like brushes
Filed: 1945-05-17
Abstract: 582,657. Brush handles. LENG, A. S. May 17, 1945, No. 12451. [Class 61 (i)] In a painter's or like brush, the bristles f are attached to the handle d by means of a ferrule a. The ferrule a is of thin sheet metal, and is secured to the handle d by pressing shallow indentations c in the ferrule to co-act with corresponding indentations e in the handle. The bristles f are attached to the ferrule a by means of cement. The ferrule a may be stiffened by means of a bead b and a broad indentation g, bounded by protruberance h.
Patent GB-883660-A (GB)
Title: Improvements in and relating to electrical protective relay systems
Inventor: ROWLEY LESLIE RAYMOND
IPC: H02H3/44
Filed: 1957-04-16
Abstract: 883,660. Protective cut-out arrangements. ENGLISH ELECTRIC CO. Ltd. April 15, 1958 [April 16, 1957], No. 12453/57. Class 38 (5). A protective arrangement, e.g. for A.C. traction circuits, has a distance relay 22 with an operating winding 22a energized in proportion to the current in the protected circuit 20 and a restraining winding 22b energized in proportion to the voltage of the protected circuit under the control of a transductor 23 having a control winding 23c energized by a current proportional to the current in the protected circuit after a time delay imposed by a time delay circuit. This delay circuit comprises a capacitor 29 and resistor 28 and is supplied from a current transformer 25 by means of a transactor 24 and rectifier 27. Under steady-state conditions the control winding 23c is effective to reduce the impedance of the main transductor winding 23a which is in series with the restraining winding 22b. A sudden rise in the current in the circuit 20 does not produce an immediate proportional increase in the winding 23c so that the relay has a higher impedance setting under fault conditions than under normal load conditions. The relay has a polarizing coil 22c.
Patent GB-566406-A (GB)
Title: Improvements in traps for use more especially in catching rats and mice
IPC: A01M23/30
Filed: 1943-08-02
Abstract: 566,406. Mouse &c. traps. WHITEHEAD, E. G. Aug. 2, 1943. No. 12473. [Class 5 (i)] The hinged rod or plate E, retaining the spring-pressed loop B in set position, instead of passing straight into the loop d' on the baitcarrier d, is hooked over or around the loop and enters it from the forward side. The baitcarrying prongs d may have crossed sides d<2>, Fig. 7, and inwardly turned points separable by lateral pressure of the opposite end of the carrier.
Patent GB-877799-A (GB)
Title: Improvements in or relating to stair rods
Inventor: HUMPHRIES WILLIAM GREGORY
IPC: A47G27/06
Filed: 1959-04-14
Abstract: 877,799. Stair rods. FRENCH & SONS Ltd., THOMAS. Feb. 24, 1960 [April 14, 1959], No. 12554/59. Class 52(5). A stair rod 11 is so formed that it has a C- shaped cross-section, the resultant slot 12 being so shaped at predetermined portions 13, 14 as to be engageable simultaneously with appropriately positioned securing means 16a, 16b in such manner that longitudinal movement of the rod 11 relatively to the securing means 16a, 16b in one direction secures the rod to such means and thereby secures the carpet 17 between the rod and the stair, one extreme end 12a of the slot being of increased dimensions and including an outwardly divergent shape, the other end of the slot being cut away at 14 to form an outwardly convergent portion in spaced disposition relative to the said end. Additional bracing struts 18 (Fig. 6) are provided to bridge the slot 12 and to prevent any opening of the slot.
Patent GB-1362307-A (GB)
Title: Fastener stacks
IPC: B65D71/00
Filed: 1972-03-17
Abstract: 1362307 Stacks of fasteners SIGNODE CORP 17 March 1972 [19 March 1971] 12599/72 Heading B8C A stack of fasteners, such as nails staples, strap seals, clips &c., for use with a fastener tool, comprises a plurality of generally identicallyshaped fasteners which each include at least one laterally open notch 12 and which are positioned in juxtaposed relationship, the or each set of notches being aligned to define collectively a key way having a laterally accessible opening, and a flexible filament-like member 22 being received within each key way to retain the fasteners in juxtaposed relationship. As shown fasteners, Fig. 2, are formed from blanks, Fig. 1, and each have a notch 12 in each side and a notch 14 at one end for co-operating with a guide, not shown, while a stack of nested fasteners is formed, continuous filaments 22, made, e.g. of low density polyethylene, being placed, with a force fit, in to the key ways formed by the aligned notches 12. Spacing between the fasteners could be increased to allow the stack to be coiled. Corrugated fastener nails, Figs. 4, 5, not shown, have aligned notches (32) for the reception of filaments (42), and an end notch (36) for engaging a guide member during stacking. In a further modification the heads (52) of nails (50) have slots (56, 58) at opposite sides thereof, the slots (58) receiving the shanks (54) of adjacent nails when the latter are arranged in a stack with the under surface of the head of one nail in abutment with the upper surface of the head of an adjacent nail, and the aligned slots 56 receiving the filament (60).
Patent GB-1207923-A (GB)
Title: Process for urea production in combination with ammonia synthesis
IPC: C01C1/04
Filed: 1969-03-11
Abstract: 1,207,923. Urea. STAMICARBON N.V. 11 March, 1969 [16 March, 1968], No. 12737/69. Heading C2C. Urea is produced from ammonia and carbon dioxide in a combined urea-synthesis/ammoniasynthesis process in which (a) "synthesis gas" comprising hydrogen and carbon dioxide is passed to an ammonium-carbamate-synthesis zone which forms part of a urea-synthesis zone, (b) the effluent gas thereby freed from carbon dioxide is passed to an ammonia-synthesis zone and the ammonia so produced is recycled to the ammonium carbamate forming zone, and (c) the solution produced in the urea synthesis zone is stripped to remove ammonium carbamate in two stripping stages at substantially equal elevated pressures, the stripping gas in the first stage being the above-mentioned synthesis gas and in the second stage being comprised of one or more of the gas streams used for the ammonia synthesis being substantially free of ammonia and carbon dioxide. The synthesis gas supplied to the ammonium - carbamate - synthesis zone may also contain oxygen, which may be utilized to catalytically oxidize the carbon monoxide, present in the effluent gas from this zone, to carbon dioxide, which may be removed by washing with an ammoniacal solution (see Specification 1,207,924).
Patent GB-1528002-A (GB)
Title: Clips for elongate members
IPC: F16G11/00
Filed: 1975-03-26
Abstract: 1528002 Cable clip UNITED-CARR Ltd 26 March 1976 [26 March 1975] 12758/75 Heading E2B A plastics clip comprises a base 13 with two upstanding resilient lugs 17, 18 each lug having a rib 19 and 20. Two flat walls 21, 22 extend upwardly from the base 13 and have notches 25, 26 to receive a cable 12 (Fig. 6). An arm 14 is joined to the lug 17 by a flexible hinge 27 and comprises a plug portion 28 with shoulders 30, 31 which snap behind the ribs 19, 20 on the lug when the plug is pressed down between the walls 21, 22, the plate portion 29 resting on the edges 23, 24 of the walls. The cable 12 lying across the notches is thus trapped between the walls and the plug (Fig. 6). Stud 15 enables the base to be fixed to a support.
Patent GB-1318148-A (GB)
Title: Tape recorder mechanism with cassette invertor
IPC: G11B15/68
Filed: 1971-05-04
Abstract: 1318148 Cassette player BELL & HOWELL CO 4 May 1971 [29 June 1970] 12857/71 Heading G5R In a tape recorder/producer for manually or automatically playing two-track tape cassettes a cassette carrier 10 is provided which is movable from a vertical position, at which a cassette 14 can be inserted, to a horizontal position to play a first track, is then returned to the vertical position at which it is rotated through 180 degrees about a vertical axis before return to the play position to play the second track and on return to the vertical position is again rotated through 180 degrees to present the cassette in its initial orientation for ejection. Assume carrier 10, loaded with cassette 14, is in the play position in which the cassette reels are engaged on drive shafts 160, 162 and the tape is engaged by drive capstan 164 and transducer heads 168, 170. When the first track has been played drive motor 80 is energized to rotate wheel 18 with integral cam 90 through one revolution. Cam follower 102 acting via arms 98, 104 rotates shaft 108 on which carrier 10 is mounted and this reaches its vertical plane position when the follower 102 reaches the dwell portion 93 of cam 90. The carrier mounting includes a crown-shaped gear 58 with two sections of missing teeth 62, 64 spaced 180 degrees apart which is secured to the carrier, and a pivot post 66 which provides a rotating axis for the gear 58 and is engaged in support block 68 secured to the shaft 108. As the carrier swings to the vertical position a pin 152 on the gear 58 engages surface 156 of cam member 136 to lift the gear 58 relative to pivot block 68 so a locking pin 71 on the block is withdrawn from an aperture in the gear and also to rotate the gear a few degrees so that drive wheel 134 can engage the teeth of the crown shaped gear 58 and drive the gear and the carrier through 180 degrees until the drive wheel again enters a toothless portion of the gear 58. A second pin 154 on the crown gear engages side edge 157 of the cam member to prevent movement of the carrier beyond the 180 degrees rotation and a spring member on the pivot post 66 urges locking pin 71 into a second aperture in the crown gear. At the end of the dwell period spring 114 pulls cam follower 102 along the second working surface 94 of the cam, thereby rotating shaft 108 and returning the carrier to the horizontal position to play the second track of the cassette. When the carrier reaches this position groove 116 on wheel 86 becomes aligned with finger 118 switching off the drive motor via microswitch 120.
Patent GB-494939-A (GB)
Title: Improvements in and relating to arrangements for automatically controlling the volume in radio receivers
IPC: H03G7/02
Filed: 1938-04-29
Abstract: 494,939. Automatic volume control. AGA-BALTIC RADIO AKTIEBOLAG. April 29, 1938, No. 12871. Convention date, April 30, 1937. [Class 40 (v)] Volume expansion is effected by controlling the amplification of a carrier frequency valve or valves and/or a modulator valve in accordance with the audio-frequency output of a radio receiver or gramophone amplifier. As shown a diode 42 rectifies the output from an audiofrequency amplifier 39, being fed through a low-pass filter comprising a choke 43 and condenser 44. The potential developed across the load resistance 46 is applied to the grid of an I.F. amplifier 24 over lead 50. The receiver comprises also an A.V.C. system of longer time constant, the d.c. output of the detector diode 30 being used to control the amplification of the radio-frequency valve 5 and frequency-changer 10. For gramophone reproduction with volume expansion the switches 9, 17, 21, 27 are operated to apply the pick-up output from terminals 51 to the grid 9<1> of valve 10, to tune the oscillator section of said valve to the intermediate frequency and to broaden the tuning of the I.F. transformers 20, 23 and 26, 53. The expansion control voltage may be applied to auxiliary grids of the controlled valves which may be hexodes.
Patent GB-580387-A (GB)
Title: An improved immersion temperature regulator for electrically controlled apparatus
IPC: H05B1/02
Filed: 1944-07-06
Abstract: 580,387. Thermal switches. LANDIS & GYR SOC. ANON. July 6, 1944, No. 12950. Convention date, July 9, 1943. [Class 38 (v)] [Also in Group XXXV] An immersion temperature regulator of the differentially-expanding tube and rod type has the electric heater of the thermal resetting device acting upon an expansion body located between the active feeler of the regulator and the change-over switching member. The regulator comprises a tube 2 supported at 1 and fixed at 3 to a rod 4 carrying a cylinder 7 enclosing a heater 6, the cylinder 7 being of the same metal as the rod 4 so as to compensate for ambient temperature changes. When the temperature of the installation under control passes a predetermined value, expansion of the portion 8 of the tube 2 exceeds that of the rod 4 sufficiently to move the switch 5 from contact k to w, so disconnecting the load 10 and switching on the heater 6, and causing the cylinder 7 to expand and reset the switch 5. In Fig. 5, resetting heaters 61, 62 arranged in a common regulator, operate a change-over switch comprising elements 12, 13 and shown in the neutral position. If the temperature falls, the switch 12 energizes a motor-coil 16 to open a hot water valve which is reclosed before the desired temperature is attained or exceeded, as the regulator anticipates the change, the valve being again actuated after a certain time if the desired temperature has not been reached. Similarly a hot water valve is closed by a coil 17 if the temperature rises and actuates switch 13. Fig. 6 shows an arrangement wherein a resetting heater 63 is switched on and off by an impulse transmitter 19 and the regulator, with which it is associated, controls a switch 20 energizing coils 16, 17.
Patent GB-815189-A (GB)
Title: A process for the production of threads and films from cuprammonium cellulose solution
IPC: D01F2/04
Filed: 1957-04-23
Abstract: Threads and films are produced by extruding cuprammonium cellulose solution into a bath containing (I) at least 2 gram mols. of one or more alkali-metal salts per litre or at least 0.1 gram mol. of one or more soluble alkaline-earth metal salts per litre or a mixture of one or more alkali-metal salts and one or more soluble alkaline-earth metal salts in such a concentration that the sum of the concentrations, expressed as percentages of the aforementioned minimum concentration in each case, is at least 100 per cent; (II) up to 8 gram mols. of ammonia per litre; and (III) salts which are capable of forming complexes with ammonia and are soluble in the bath, in a concentration up to the saturation point; the resulting coagulated structures are highly stretched and then decomposed.  The halides, nitrates, formates and acetates of the alkali metals and alkaline-earth metal salts are used, the sulphates and carbonates are also suitable.  The bath preferably contains ammonia in a concentration corresponding to the ammonia concentration of the spinning solution, i.e. about 3-4 gram mols. per litre.  The concentration of the salts capable of forming complexes with ammonia is preferably 0.1 gram mol. per litre, which corresponds to the concentration of the unfixed copper in the spinning solution, suitable salts being copper, zinc, cadmium, cobalt and nickel halides, nitrates, formates and acetates and, if alkaline earth metal salts are absent, the sulphates and carbamates.  The threads and films may be stretched by 50-200 per cent and then decomposed in acid baths.
Patent GB-1293025-A (GB)
Title: Production of 5-aminopyrazoles substituted in the 0-position
IPC: C07D231/38
Filed: 1970-03-18
Abstract: 1293025 Preparation of 5-aminopyrazoles BADISCHE ANILIN- & SODA-FABRIK AG 18 March 1970 [19 March 1969] 12971/70 Heading C2C  5-Aminopyrazoles of the formula in which R represents an aromatic or heterocyclic radical, an arylsulphonyl or -CSNH 2  group, are prepared by reacting malonodialdehyde dioxime with nitrous acid and reacting the resultant product with a hydrazine of the formula RNHNH 2 . It is preferred to effect the first reaction step at 0-10‹ C. using approximately equimolar amounts of dioxime and nitrous acid, the latter being generated in situ from a nitrite and an acid. The second step may be carried out at 0-70‹ C. using 1 mol. hydrazine per mol. starting dioxime. Both stages are generally carried out in a solvent, e.g. water, and at a pH of 3-14, the pH being raised to 9-14 towards the end of the reaction. Examples relate to the preparation of compounds in which R is a phenyl, chloro-, sulpho-, methyl- or nitrophenyl, thiocarbonamido, benzothiazol-2-yl, or benzenesulphonyl group.
Patent GB-551728-A (GB)
Title: Improvements in a method of packing sheets of paper and a container for the paper packet obtained
IPC: B65D83/08
Filed: 1941-10-08
Abstract: 551,728. Packing sheets of paper. PAPPERCENTRALEN I STOCKHOLM AKTIEBOLAG. and STRANDBERG, M. O. Oct. 8, 1941, No. 13018. [Class 94 (i)] A packet of paper, particularly toilet paper, consists of a number of rectangular sheets 1, Fig. 2, arranged one on the other and each folded on a transverse line lying at a distance from one end which is substantially less than half the length of the sheet, t, alternate sheets being arranged with the folds at opposite ends of the packet. Preferably the fold is made at onethird of the length of the sheet, and several sheets may be superposed before folding. The packet is intended to be placed in a rectangular container formed of two pockets 7, 8, Fig. 1 between which is an opening 4 through which a sheet may be withdrawn by grasping the free edge 2. The container is made by folding and glueing a shaped paper blank, and is provided with an apertured extension 5 by which it can be suspended. The container can be completely closed, its front side being provided with perforations corresponding to the shape of the opening 4.
Patent GB-1303217-A (GB)
IPC: C08K5/103
Filed: 1971-04-28
Abstract: 1303217 PVC plastisols W R GRACE & CO 28 April 1971 [28 April 1970] 12023/71 Headings C3C and C3P P.V.C. plastisols for use as sealing gaskets in container closures contain 3-10 phr. of a glyceryl mono-ester of a fatty acid. Optional additives are C 20 -C 50  alkane, e.g. eicosane or petrolatum, a fatty acid amide, e.g. erucyl amide, a blowing agent, e.g. azodicarbonamide, and a stabilizer, e.g. calcium/zinc stearates in epoxidized soybean oil. Dioctyl or di-isodecyl phthalate is used as plasticizer in the examples. The compositions are deposited in the container closures and fluxed in situ.
Patent GB-128989-A (GB)
Title: Improved Chaser Aeroplane.
Inventor: CAPRONI GIANNI
IPC: B64C39/00
Filed: 1917-09-11
Abstract: 128,989. Caproni, G. July 14, 1916, [Convention date]. Aerial machines without aerostats; cars; tanks, arrangement of.-A light aeroplane comprises small biplane wings, two fuselages 5, 6 in which tanks 3, 4 are housed, and a central car 2 carrying a single engine which drives a propeller ar. ranged at the front or rear of the car.
Patent GB-866961-A (GB)
Title: Improvements in or relating to periodic pulse separating circuit arrangements
IPC: H04N5/213
Filed: 1959-04-16
Abstract: 866,961. Valve pulse circuits. TELEFUNKEN G.m.b.H. April 16, 1959 [April 17, 1958], No. 13028/59. Class 40(6) [Also in Group XL(b)] A pulse discriminating circuit capable of providing a pulse sequence of predetermined frequency present in an input pulse sequence and of substantially the same shape as the required pulses of the input pulse sequence, comprises an amplifier 4 in which the input pulse sequence 1 is applied to a control electrode, a control voltage being derived from the output and fed via a time constant circuit 10, 11 to another control electrode to cut off the amplifier 4 at the end of the first required pulse, the time constant circuit 10, 11 being dimensioned so as to maintain the amplifier cut off until just before the next required pulse of the input pulse sequence 1. In the circuit described, the valve 4 is cut off after each positive pulse 1, rendering the valve 8 fully conductive. The fall at the anode of valve 8 is passed by a capacitor 10 to the grid of valve 4 holding it cut off until capacitor 10 has discharged via resistor 11. The discharge time of circuit 10, 11 may be made longer than the period of the incoming pulses so that the circuit acts as a frequency devider. Fig. 4a (not shown) relates to the use of the circuit to separate television synchronizing pulses from a video waveform containing interference.
Patent GB-144861-A (GB)
Title: Improvements in motor and like vehicles adapted for hauling agricultural implements
IPC: A01B3/68
Filed: 1919-05-23
Abstract: 144,861. Saur, G. May 23, 1919. Winding and paying-out apparatus on motor vehicles.-In a tractor fitted with a winding- drum for use in hauling agricultural implements, the transmission mechanism from the engine to the drum and rear axle includes a slidable shaft d<1> provided with claw clutches d<6> at its ends to engage corresponding clutch parts on alined shafts d, geared by bevel and spur wheels with the drum c and rear axle a<3> respectively. The shaft d<1> is driven from the longitudinally-arranged engine shaft b<2> by a pinion b<4> engaging a non-slidable wheel d<3> feathered on the shaft d<1>. Universal joints b<7>, d<2> are interposed as shown.