baber/WOPTO huggingface dataset:
Patent GB-952198-A (GB)
Title: Improvements in and relating to noise elimination in telemetry receivers
IPC: H04B1/12
Filed: 1960-04-26
Abstract: 952,198. Measuring temperature electrically. COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANIZATION. April 26, 1960 [April 27, 1959], No. 14579/60. Heading G1N. [Also in Division H3] The temperature inside an oven for biscuits travelling on a moving belt is sensed by a thermistor 15 (Fig. 2) connected to a transistor oscillator 5 located in a cavity 8 in a can 9 filled with ice and enclosed in a thermally insulating jacket 10. The temperature varies the on/off ratio and recurrence frequency of a multivibrator circuit, modulating the transmitted carrier between limits. At the receiver (not shown), pulses are locally generated whose frequency and duration are synchronised with the incoming pulses by a feedback loop and phase detector, so that interference is eliminated by detecting the regenerated pulses.
Patent GB-732682-A (GB)
Title: Improvements in or relating to cartons
IPC: B65D5/06
Filed: 1952-06-10
Abstract: 732,682. Cartons. VIVIAN, G. S. July 28, 1953 [June 10, 1952], No. 14604/52. Class 18. A carton in which one of the side walls is adapted to be folded outwardly to form a pouring spout is formed from a blank, scored on the lines 10 to 13 to provide four sides and a sealing tab 18, and on lines 20 to 23, 24 to 27, and 19, to form the top closure, a sealing flap 28 being folded over part of the closure away from the spout position. The flaps 14a to 17a form the bottom. Creasing lines 31 and 32 form the spout portion, the spout being formed by sliding the closure clip 29 away from the side wall 15 and bending back the corners 33, 34. A further set of creasing lines 35, 36 are provided and by moving the clip 29 the size of the spout is reduced.
Patent GB-539258-A (GB)
Title: Improvements relating to packing cases or boxes for bottles and like articles
IPC: B65D5/49
Filed: 1940-09-27
Abstract: 539,258. Packing cases for bottles. THOMPSON & NORRIS MANUFACTURING CO., Ltd., and PAXTON, A. M. Sept. 27, 1940, No. 14629. [Class 18J An internal fitting for holding bottles &c. in lined collapsable cardboard &c. boxes or rigid wooden &c. containers comprises cells 5 arranged in honeycomb fashion with spaces 7 between the cells, the spaces in the upper layer receiving the necks of bottles &c. contained in the cells of the lower layer and vice versa. The whole fitting may be collapsable as a unit.
Patent GB-248973-A (GB)
Title: Device for facilitating the removal of valves of internal combustion engines
IPC: B25B27/24
Filed: 1925-06-05
Abstract: 248,973. Vanderstegen, E. June 5, 1925. Holding and picking-up tools. -A device for removing valves from internal - combustion engines comprises a suction cup b attached to a rod a, forming a suction pump. The device is inserted into the valve pocket and made to adhere to the valve which can thereby be removed.
Patent GB-930872-A (GB)
Title: An electrical circuit using a tunnel diode
IPC: H03B7/08
Filed: 1961-04-24
Abstract: 930,872. Tunnel diode circuits. SONY CORPORATION. April 24, 1961 [April 27, 1960], No. 14797/61. Class 40 (6). In order to suppress parasitic oscillations in tunnel diode circuits a parallel combination of an inductive element and a resistor are connected in series with the tunnel diode, the parallel combination having a negligibly small impedance at an operating frequency of an electrical circuit connected to the tunnel diode and the resistor having-a resistance sufficient to prevent parasitic oscillation at a frequency determined by the equivalent circuit constants of the tunnel diode and the inductive element and resistor parallel unit. The equivalent circuit of a tunnel diode has a frequency dependent characteristic due to its own barrier capacity, diffusion resistance and an inductive property associated with the lead wires such that any circuit using a tunnel diode has a parasitic oscillation of relatively high frequency. As shown in Fig. 4, the parasitic oscillations in an amplifying circuit using a tunnel diode T.D. are suppressed by connecting the parallel combination of a resistance Rx and an inductance Lx in series with the diode T.D. The value of the inductance element Lx is so selected that its impedance may be neglected with respect to the electrical circuit M at the operating frequency of the circuit as a whole while being large compared to the inductance of the equivalent circuit of the diode. With the inclusion of the element Lx the parasitic oscillation frequency is lowered and can then be effectively stopped by resistance Rx. The invention may be applied to oscillators, frequency converters or amplitude limiters.
Patent GB-543205-A (GB)
Title: Apparatus for use in a game of skill
IPC: A63F3/00
Filed: 1940-10-04
Abstract: 543,205. Board games. BAKER, G. H. P. Oct. 4, 1940, No. 14878. Convention date, Sept. 26. 1939. [Class 132 (ii)] Apparatus for playing a board game comprises distinctive sets of tokens representing the air, land and sea forces of opposing combatant countries, and a board marked with opposing areas 2, 3 representing their main lands, an area 5 of sea, an area 4 representing an island and a number of circles 6 arranged in staggered relationship in parallel rows. In playing a game, the tokens are arranged on the circles marked troops, air force and navy, and are moved from circle to circle and are capture in a manner resembling draughts the ultimate object being either to capture all the opposing tokens or to place his own tokens on the island and exclude his opponents.
Patent GB-1428643-A (GB)
Title: Process and catalyst for the manufacture of trimethylphenol
IPC: C07C37/16
Filed: 1974-04-04
Abstract: 1428643 Preparation of 2,3,6-trimethylphenol F HOFFMAN-LA ROCHE & CO AG 4 April 1974 [5 April 1973] 15006/74 Heading C2C [Also in Division B1] 2,3,6-Trimethylphenol is produced by the gas phase reaction of m-cresol and methanol in the presence of a catalyst containing 24 p.b.w. magnesium as magnesium oxide, 2-15 p.b.w. of cerium as eerie oxide, 1-5 p.b.w. of zinc as zinc oxide and 0À1-1À5 p.b.w. of alkali metal, barium, calcium or strontium as the oxides. The reaction may be effected at 300-520 C., a pressure of atmospheric to 10 atm. excess and using a mole ratio of methanol to m-cresol of 2 : 1 to 20 : 1. The reaction product may in addition contain 2,3,4,6-tetramethylphenol, ocresol, 2,6-xylenol, phenol. 2,5-xylenol, 2,3- xylenol, 2,4,6-trimethylphenol and 2,3,5-trimethylphenol. The reaction mixture can be used without further purification for the manufacture of trimethylquinone.
Patent GB-116212-A (GB)
Title: Improvements relating to Loose Leaf Binders.
IPC: B42F13/04
Filed: 1917-10-17
Abstract: 116,212. Impey, F. L., Morland & Impey, and Pilkington, T. Oct. 17, 1917. Flexible-band files; covers. - In loose-leaf binders having flexible binding-thongs, the ends of the thongs d are provided with flanged or dished metal caps a, which prevent spreading of the material of the thong during the operation of riveting or otherwise securing it in position. When an expanding back g is used, one edge may be attached by springs i to extensions j of the caps a, the other edge being secured by eyeletted hooks k.
Patent GB-626061-A (GB)
Title: Improvements in photographic cameras
IPC: G03B19/04
Filed: 1946-05-17
Abstract: 626,061. Photographic twin-lens cameras. SOC. ANON. DES ETABLISSEMENTS M. HALBOUT SOC. ANON. May 17; 1946, No. 15063. Convention date, Feb. 7. [Class 98 (i)] A box-form roll-film photographic camera comprises a removable cover forming one of the larger side faces of the case, inner partitions rigid with the non-removable side face and the narrower side walls defining spool housings and a reflex view-finder chamber and enhancing the rigidity of the case, a spring-urged plate carried on an inside part of the case facing the objective for supporting the imageforming part of the film, and a pivoted frame folding over the film and carrying a spring blade engaging a projection on one of the partitions to hold the frame securely against the film, the frame being pivoted by a first lateral arm to a small plate on the outer edge of the inner partition and by a second lateral arm having a pivot engaged in a blind hole in the non-removable face. The view-finder may have a focusing lens coupled to the focusing movement of the objective lens. As shown, Fig. 1, the objective 2 and shutter 3 are mountedin the front of a box-like casing, one of the larger side faces being removable. Interior partitions 5, 6, 7, 8 form compartments for the spools and the view-finder. The image formed by the finder lens 4 is thrown by a 45 degree mirror 9 mounted on the partition 8 on to a groundglass screen, or a lens which may have a ground plane surface, set in the top of the casing. The finder cover 10, hinged at 11, has lateral light shields 12. The film passes from a supply spool in the spool chamber over a pressure plate 13 spring mounted on the casing, through a channel formed by the partition 7, to the take-up spool in the lower spool chamber. A picture gate 15, hinged by its top edge to the casing, carries a spring blade 20 which engages a projection on the partition 7 when the gate is swung down on the film face, and rollers 22, 23, which bear on the film face to avoid rubbing. The removable side carries a one-way winding knob engaging the take-up spool, a projection engaging the supply spool, locating lugs, and a spring lug for locking it into place. The casing has a window for observing film markings and may have a tripod bush 24 and buttons for a carrying strap. In a modification (Fig. 3, not shown), the finder and main objectives are identical, and toothed wheels mounted on their peripheries are coupled together by a pinion so that the objective can be focused by focusing the image in the finder.
Patent GB-782680-A (GB)
Title: Improvements in or relating to rotary brushes for street sweeping and like machines
IPC: A46B13/00
Filed: 1954-05-22
Abstract: 782,680. Rotary brushes. NIELSEN, A. T. May 23, 1955 [May 22, 1954], No. 15124/54. Class 19. A rotary brush for road sweeping and like machines comprises a number of cylindrical brush sections removably mounted on a hub consisting of a central rod or tube around which are spaced at equal intervals a plurality of parallel tubes carried by supporting plates attached to the central tube or rod. As shown, the brush sections, Fig. 13, are mounted on a hub, Fig. 1, spaced apart by distance pieces, Fig. 7, and held in position by end pieces, Fig. 3, screwed to the end plates of the hub and secured to members, Fig. 5, providing spindles m. In an alternative embodiment, Fig. 9, the outer tubes c are extended beyond the supporting plates band.the hub is provided with end plates p. In this case the bristles may be slanted axially by flaring the end plate outwardly and correspondingly shaping the flanges of the distance pieces, Fig. 11 (not shown). The central tube may be of square section and the apertures in the end plate b may be sufficient to accommodate a coupling for an adjacent brush. The brush sections comprise flat steel wire or crimp steel wire secured in a circular channel form back the sides of the channel being pressed in at intervals to prevent the bristles being displaced circumferentially. An inwardly directed rivet u on the brush back engages an outer tubular member of the hub to prevent the brush section from rotating.
Patent GB-402474-A (GB)
Title: Improvements in or relating to electrical socket contacts
IPC: H01R13/115
Filed: 1933-05-27
Abstract: 402,474. Plug couplings. ARNOLD, C. L., and M. K. ELECTRIC, Ltd., Wakefield Street, Edmonton, London. May 27, 1933, No. 15197/32. [Class 38 (i).] A resilient socket 3, 5 surrounded by an inextensible band 15 retained in position between projections 13, pressed from the socket, and a bell mouth 9, has the sides 11 of the bell cut away to allow the band 15 to pass over it when the parts 3, 5 of the socket are pressed together. A spring ring 17 may be employed to increase the resilience of the socket and assist in positioning the band 15.
Patent GB-985752-A (GB)
Title: Improvements in or relating to the production of esters of phosphoric acid
IPC: C07F9/09
Filed: 1961-04-27
Abstract: An ester of phosphoric acid is obtained by reacting an organic hydroxyl compound or an epoxide with a phosphorus oxyhalide in the presence of a preformed titanium ester as catalyst.  When a hydroxyl compound is used it is advantageous to use a titanate ester of the same hydroxyl compound but other titanate esters may also be used. The titanium ester may be produced by reaction of a titanium halide, e.g. titanium tri- or tetra-chloride with a mono- or polyhydric alcohol or phenol, while splitting off hydrogen halide and if desired the reaction may be effected in the presence of excess alcohol or phenol to produce a concentrate of the titanium ester dissolved in the excess of the hydroxyl compound, thus TiCl4 may be added gradually to an excess of cresylic acid and the mixture heated under reflux to drive off HCl.  The reactants should be substantially free from water especially when epoxides are used. When epoxides are used, the products are tertiary phosphate halo esters and specified epoxides are olefine oxides such as ethylene-, 1,2-butylene- and propylene-oxides and halogenated olefin oxides such as epichloro-hydrin, epiiodohydrin and epibromohydrin. Examples are given for the production of tri-cresyl-, tri-(o-phenyl phenyl)-, tris-chloroethyl-and tris-dichloropropyl-phosphates.
Patent GB-1063021-A (GB)
Title: Improvements relating to the production of secondary originals and colour separationnegatives
IPC: G03F1/00
Filed: 1964-04-13
Abstract: 1,063,021. Laminates. R. HELL. April 13, 1964 [April 13, 1963], No. 15262/64. Heading B5N. [Also in Division G2] Screened, printable, secondary originals for use in the photo-chemical production of printing forms are made by electro-mechanically engraving a face of sheet material having a base of transparent material and, at the said face, a coating of opaque material, e.g. ink or varnish, there being provided between the base and the coating a translucent light-diffusing layer bonded to the base layer and having a thickness at least equal to the maximum penetration of the engraving tool. The light refracting effect caused by the screen elements cut out by the engraving tool is said to be compensated by the diffuse dispersion in the translucent layer. The base layer may be of P.V.C. or glass and the translucent layer may be of P.V.C. provided with a milky opacifier, e.g. bone ash. The two layers may be bonded together with Canada balsam.
Patent GB-1172415-A (GB)
Title: Speed Regulating System Providing Slowdown Control for a Motor having a Unidirectional Converter Armature Supply
IPC: H02P7/292
Filed: 1967-04-04
Abstract: 1,172,415. Control of D.C. motors. WESTINGHOUSE ELECTRIC CORP. 4 April, 1967 [25 April, 1966], No. 15302/67. Heading H2J. [Also in Division G3] A D.C. motor having armature 12 and shunt field winding 14 is supplied from three-phase source 18 through converter 22. A set-point signal T is derived from circuit 38 and is compared with a negative feedback signal t, representing load tension, in controller 36 whose output signal S is applied to speed controller 26. A negative feedback signal s is derived from tachometer generator 40 and is summed with the signal S to produce signal C. A signal c represents armature current and is summed with signal C by controller 28. A circuit 44 produces a simulated current signal cRM for application to the controller 28 and summation with the signal C when forward armature current drops to zero. The output of the current controller 28 is a reference signal V for voltage controller 32 which also receives feedback signal v, and provides signal P for pulse generator 48 associated with amplifier 50 and converter 22. The field winding 14 is supplied through forward converter 56 or reverse converter 58, the signal T passing through inverter 60 to a CEMF controller 62. The latter sums the signal T with signals c and v, and its output is applied to field current controller 64 which also receives feedback through sensor 66 and function generator 68. A field voltage controller 70 receives signals from the controller 64 and sensor 72, and the resultant output signal is applied to pulse generators 74, 76, for thyristor firing angle control in the converters 56, 58. If the speed is below the setpoint, the armature voltage is increased and the forward field excitation may be reduced to clamp the CEMF at a rated maximum. Excess speed causes coasting operation, until positive braking operation is introduced by field reversal and regeneration at 5% excess speed. When the armature voltage becomes negative and exceeds a set-point voltage V1, relay 84 operates to couple inverter 92 between controllers 26, 28, the firing angle of the converter 22 being advanced. Relay 94 responds upon demand for braking to by-pass inverter 100, the relay being operated by comparator 102 receiving a set-point signal V2 and a speedresponsive signal. The field current is reversed, and the motor speed is decreased by regenerative braking until the relays 82, 94 drop out at 1 % overspeed. Final speed reduction is achieved by coasting, the armature current being shut-off and the field restored to the forward-connection.
Patent GB-1011463-A (GB)
Title: Fertilizer compositions and method of manufacture
IPC: C05G3/00
Filed: 1963-04-18
Abstract: <PICT:1011463/C1/1> A slow release fertilizer is in the form of agglomerates or extruded pellets containing 2-25% of a water-repellent binder. The binder may be asphalt having a softening point above 120 DEG  F., paraffin wax, natural rubber, polyethylene, polypropylene, polystyrene, polybutadiene, polyvinyl resin, or petroleum resin. The binder may be mixed with the fertilizer in the molten state or dissolved in a volatile solvent; or may be formed in situ by polymerizing drying oil or butadiene.  Up to 50% of a filler may be added before or after incorporation of the binder.  The filler may be chalk, limestone, calcined lime, gypsum, clay, or phosphate rock.  A number of pellets having a diameter of 1/16 to 1/2 inch may be bound together with additional binder to form a larger pellet (Fig. 4).  The additional binder may contain additional fertilizer and/or filler. The fertilizer may be a mixture of ammonium sulphate, potassium chloride and dicalcium phosphate.
Patent GB-994339-A (GB)
Title: Toys, and containers usable as toys
IPC: A63H33/00
Filed: 1964-04-14
Abstract: 994,339. Trains. COLGATE-PALMOLIVE CO. April 14, 1964 [April 15, 1963], No. 15391/64. Heading A6S. A toy comprises a bottle simulating a wheelless railway coach having integral wheel attaching means comprising a pair of projecting knobs 22 whereby bogies may be attached and coupled together to represent a railway train. Bogies 24 of high impact polystyrene may be forced over the projecting knobs 22 as shown in Fig. 5.
Patent GB-694645-A (GB)
Title: Improvements in or relating to water-tube boilers
Inventor: LEWIS WILLIAM YORATH
IPC: F22B21/08
Filed: 1950-06-21
Abstract: 694,645. Water-tube steam boilers. YORATHLEWIS BOILERS, Ltd. June 21, 1951 [June 21, 1950], No. 15525/50. Class 123 (ii) A steam boiler comprises an upper steam-andwater drum a from which a bank of Field steamgenerating tubes b, with inner feed tubes c, depend vertically to define one side of a combustion chamber h, preferably oil-fired, and the floor i<SP>2</SP> and roof i4 of the combustion chamber, also the slide i<SP>3</SP> opposite the said tubes b, are lined with U-shaped tubes i the limbs i<SP>1</SP> of which are disposed on the side of the tubes b remote from the combustion chamber and constitute downcomers. A superheater j may be located between the downcomers i<SP>1</SP> and tubes b, and doubleleg economizer tubes g extend downwardly from the drums a on the gas inlet side of the downcomers. The feed tubes c are supplied from a trough d as described in Specification 656,885. The end walls of the combustion chamber may be lined with Field tubes a. Specification 614,654 also is referred to.
Patent GB-856345-A (GB)
Title: An improved straight line motion device
Inventor: BARBER CLIFFORD CHARLES
IPC: B23Q1/54
Filed: 1957-05-16
Abstract: 856,345. Linkwork. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 18, 1958 [May 16, 1957], No. 15546/57. Class 80 (3). Plate element 16 is moved along guide rails 3, 4, 5, 6 to different parallel positions under control of at least two systems of links 12, 14 attached by flexible strips 15 to the plate 16 along different directions in the plane of the plate, the links also being connected together and to the guide rails by flexible strips 13 and 10, 11 respectively. Additional link systems may be provided for bodies which extend in the direction of movement.
Patent GB-381901-A (GB)
Title: Improvements in and relating to filtering apparatus for air and other gases
IPC: B01D46/18
Filed: 1932-06-01
Abstract: 381,901. Dust filters. WITTEMEIER, H., 11, Bismarck Allee, Grunewald, Berlin. -(Assignee of Richter, B. ; 26, Augustastrasse, Wilmersdorf, Berlin.) June 1, 1932, No. 15565. Convention date, Jan. 29. [Class 8 (ii).] A filter for air and gases comprises filter eiements 4 supported from travelling chains 1 through external brackets 10 on which they are pivoted, so that the elements travel substantially in contact along their straight courses without colliding at the turns ; overlaps 35 make the joints between them airtight. The elements comprise frames holding sheets of perforated metal, wire fabric, &c. In an earlier form of apparatus described, the elements are pivoted directly on the frames and the gaps between them rendered necessary to avoid blocking at the turns are bridged by resilient tongues &c.
Patent GB-416523-A (GB)
Title: Improvements in and relating to pipe joints or couplings
IPC: F16L19/04
Filed: 1933-11-20
Abstract: 416,523. Pipe joints. HERZMARK, N., 44, Rue Vitruve, Paris. Nov. 20, 1933, No. 15713. [Class 99 (i).] In pipe joints of the kind in which the flared end d<1> of a pipe is compressed on the slightly tapered end c of a coupling member b by a nut f, the internally tapered part g of the nut is tapered at a smaller angle than the cone c and engages with the pipe only at a part below its maximum diameter. In the case of a hard metal pipe a ring i of soft metal is interposed or the cone c may be coated with a layer of soft metal, or the burr on the pipe end formed by a pipe cutter may be shaped to a narrow internal flange. When two pipes are connected by a double conical coupling member a, Fig. 11, the joint may be locked by a sleeve n shaped to fit the hexagonal faces of the nuts h and the coupling member, the sleeve having an anchoring tail-piece n<1>.
Patent GB-852937-A (GB)
Title: Improvements in or relating to dry plate rectifier assemblies
Inventor: MARROW SIDNEY HUGHES
IPC: H01L25/07
Filed: 1958-05-16
Abstract: 852,937. Dry plate rectifier assemblies. STANDARD TELEPHONES & CABLES Ltd. May 16,1958, No. 15793/58. Class 37 A casing for a dry plate rectifier assembly comprises a tubular casing of insulating material of any desired cross-section from the side of which a row of lead out wires, which constitute supporting means, emerge. The assembly preferably comprises the semi-cylindrical member shown in Fig. 1 into which the components of the rectifier stack shown in Fig. 2, i.e. rectifying plate 22 terminal members 23, 24 and insulating members 21, may be inserted in any desired combination, the lead out wires 24 extending through slot 4 in Fig. 1. The assembly being completed by the closure member shown in Fig. 3 which mates with the member shown in Fig. 1 lugs 3 passing through holes 32 in which they may be an interference fit or the lugs may be riveted over to retain the closure member. In an alternative arrangement the slot for the lead out wires may be formed by a cut out in the closure member as shown dotted at 33 in Fig. 3. If required the whole assembly may be sealed with e.g. a synthetic resin.