baber/WOPTO huggingface dataset:
Patent GB-1464113-A (GB)
Title: Reducing unwanted modulation
IPC: H04N5/217
Filed: 1975-02-14
Abstract: 1464113 Television systems POST OFFICE 14 Feb 1975 [19 Feb 1974] 7556/74 Addition to 1362131 Heading H4F The arrangement disclosed in Specification 1,362,131, which is designed to reduce unwanted amplitude modulation in an input signal, e.g. the modulation resulting from illumination by lighting operating at 50 Hz of a scene viewed by a television camera operating at 60 fields/sec., is modified by an additional feedback path and an additional divider to provide an output signal in which the reduced unwanted modulation is independent of the D.C. component of the input signal, i.e. independent of whether the picture is high or low key. In the embodiment shown in Fig. 2 the input signal containing the unwanted modulation passes to one input 8 of an analog divider 9 whose output passes to a black level clamp 11 which provides the required output. The output is also fed to two feedback paths. One contains, for example, a band-stop low pass filter 13, a commutating band pass filter 14, and a Butterworth filter 18, and feeds the additional divider 19. The other path is the additional path and contains low pass filter 20 and also feeds the additional divider. The output of divider 19 passes via an amplitude biasing circuit 21 to divider 19.
Patent GB-621046-A (GB)
Title: Improvements in or relating to compositions for games ball cores and to the production of games balls therefrom
IPC: A63B37/08
Filed: 1946-03-12
Abstract: A composition suitable for the core of a games ball such as a golf ball, which is initially solid at ordinary temperatures and is capable of being brought to a normally mobile condition comprises an aqueous proteinaceous colloid gel, a weighting material and a non-labile colloid in a proportion insufficient to form a gel.  The proteinaceous colloids may be those such as glue or gelatine which are readily hydrolysed by acids, proteolytic enzymes, saline solutions and organic substances such as resorcinal.  They may be preserved by the addition of phenol or chloroisothymol and may be modified by the addition of glycerol. The non-labile colloids are those which are not readily degraded by heat or by acids alone and include the carbohydrate colloids such as cellulose esters and ethers, starches and starch esters, and water dispersible gums such as gum arabic and gum tragacanth. The weighting material may be barytes, lithopone, lead or a lead compound.  The composition is preferably put into a rubber sac and the gel converted to a mobile condition either by heating or by bacteria which produce proteolytic enzymes or by the addition to the composition of maleic anhydride, potassium persuphate, resorcinol or sodium bisulphite.  Specification 387,084, [Group XV], is referred to.
Patent GB-892190-A (GB)
Title: Apparatus for frequency-dependent attentuation regulation in carrier frequency systems
IPC: H04B3/10
Filed: 1959-03-05
Abstract: 892,190. Tone and volume control. FELTEN UND GUILLEAUME FERNMELDEANLAGEN G.m.b.H. March 5, 1959 [March 13, 1958], No. 7735/59. Class 40 (4). In a multi-channel carrier system in which volume control and equalization are effected manually in dependence upon the received levels of two pilot frequencies transmitted alternately from the send terminal, control is effected individually for each channel at the receive terminal but jointly for a group of channels at an intermediate repeater, and the pilot frequencies are derived from two auxiliary frequencies in the lowest signal band which are applied to the channel modulators of the channel equipments. As shown, a generator G produces the two auxiliary frequencies #1 and f2, the change from one to the other being effected by the change-over switch U1 which is operated automatically, by means not shown, at a frequency of fU, thus alternately associate ing two frequency determining elements with the generator G. With the change-over switch S1 in the position shown and the channel switches t1 . . . t4 closed cyclically, the output of the generator G is applied cyclically to the channel modulators KU1 . . . KU4 and at the receive station the equalizers (Rk1) and level controllers (Rk2) of the channels are manually adjusted in accordance with the received pilot levels indicated by meter Me. With the switch S1 in its lower position the output of G is applied via change-over switch U2 (operated synchronously with U1) to the modulators KU1 and KU4 so that one translated pilot frequency is transmitted over each of these channels to permit manual adjustment of Rz1 and Rz2 at the intermediate repeater. German Specification 846,701 is referred to.
Patent GB-692621-A (GB)
Title: Improvements in and relating to fusible electrical cut-out assemblies
Inventor: SUGDEN ERIC WILLIAM
IPC: H01H85/20
Filed: 1950-03-28
Abstract: 692,621. Fuse boxes. PARMITER, HOPE & SUGDEN, Ltd. March 9, 1951 [March 28, 1950], No. 7754/50. Class 38 (i). A house-service fuse assembly comprises a cable sealing chamber 4 surmounted by a neutral connector compartment 8 and a base contact compartment 6 for receiving a cartridge fuse 2 horizontally, the latter compartment being not substantially greater than necessary to house the fuse, at least one of the base contacts being, to this end, off-set from the horizontal plane containing the fuse axis and the terminals being arranged so that they are accessible one from the chamber 4 and the other from above. In Figs. 1 and 3 the casing of the assembly is in three parts, a base 10 and two covers, 12, 14, the former for the chamber 4 and the latter for the compartments 6 and 8. Cover 14 also serves as a carrier for the fuse, being provided with contacts 40. The base contacts 23, 24 are arranged above and below the axis of the fuse respectively and are separated by a vertical partition 27, the terminal 21 of contact 23 having provision at 44 for connection to a bus-bar. Alternative ways of constructing and arranging the base contacts 23, 24 are shown in Figs. 5-7. Specification 692,622 is referred to.
Patent GB-709154-A (GB)
Title: Improvements in means for continuously separating heavy impurities from fibrous suspensions
IPC: D21D5/02
Filed: 1952-03-26
Abstract: 709,154. Centrifugal separators. VOITH GES., J. M. March 26, 1952 [April 28, 1951], No. 7783/52. Class 23 Solid impurities are separated from a fibrous suspension in a separator comprising a rotary disc 5 to one side of which the suspension to be purified is fed, a stationary collector chamber 2 for the impurities surrounding the disc, and an outlet 3 for the purified suspension extending into the chamber and opening on the side of the disc opposite to the side to which the suspension is fed. The left and right hand sides of Fig. 1 show different embodiments of the invention. The disc, driven by a motor 7, may have a concave feed surface or a feed surface provided with vanes 8. The impurities are withdrawn from the chamber by means of tangential or annular extensions 10, 12 provided with doors.
Patent GB-936212-A (GB)
Title: Angle cock
Inventor: COPPENS MATTHEUS JOHANNES MART
IPC: B05B1/32
Filed: 1961-03-03
Abstract: 936,212. Valves. METAL CONTAINERS Ltd. Feb. 22, 1962 [March 3, 1961], No. 7812/61. Class 135. A cock comprises a casing 11 having a spigot end 13 and a discharge end 14 defining a flow channel 15, an obturating member 16 located in the discharge end of the channel so as to provide an annular flow passage, an annular seat 24, the seat and member being relatively movable by means 26, 27 from a closed to an open position and held in the intermediate positions, the obturating member and the seat being so formed that the cross-section of the annular discharge orifice between the member and the seat in all intermediate positions thereof is substantially similar in shape to the cross-section of the discharge orifice in the extreme open position of the member and seat. The obturating member 16 consists of two parts 17, 18 made, for example, of synthetic resin material, the part 17 being connected by webs 22 to a ring 21 which is clipped into a groove 23 in the casing 11; the part 18 is formed with a ridge 19 for engagement with a groove 20 in the part 17. The seat 24 is formed on a threaded nut 25, the slope of the threads 26, 27 being so shaped that the nut may be pushed over the threads of the casing; the nut and casing may be of polyethylene. In an alternative arrangement, the seat 24 may be stationary and the obturating member moved axially. Lugs 29, 30 are formed on the nut and casing for indicating its open and closed positions; holes may be provided in the lugs for wiring them together in the fully closed position.
Patent GB-475246-A (GB)
Title: Improvements in or relating to electric gas blast switches
IPC: B08B9/04
Filed: 1937-03-17
Abstract: 475,246. Gas-blast switches. STRAUSS, (nÚe RUPPEL), F. March 17, 1937, No. 7895. Convention date, March 19, 1936. [Class 38 (v)] In a gas-blast switch in which the arc is extinguished by gases generated by the heat of the arc, and in which the separation of the contacts takes place in a closed space 8 which is opened by means of the movable contact 1 during the switching - off movement, the space is provided with a piston 3 under the control of a spring 4 tending to reduce the volume of the space, the movement of the piston being independent of the movement of the movable contact. In one construction, Fig. 1, the contact 1 passes through a tube 6 of gas-yielding material, and the piston 3 constitutes the other contact of the switch ; closure of the switch compresses the spring 4. On switching off, the contact 1 moves upwards more quickly than the piston, the movement of the latter being restrained by the pressure developed in the space 8 until the contact 1 has moved out of the tube 6. In a modification, Fig. 2, the contact 1 is tubular and surrounds a pin 7, preferably of gasyielding material, connected to the piston. In another construction, Fig. 3 (not shown), the piston slides on the filling pin, which is stationary.
Patent GB-540896-A (GB)
Title: Process and apparatus for handling and disposing of dust in furnaces
IPC: F23J1/00
Filed: 1940-05-03
Abstract: 540,896. Disposing of dust in furnaces. ALLEN SHERMAN HOFF CO. May 3, 1940, No. 7951. Convention date, May 3, 1939. [Class 51 (i)] The dust produced in a pulverulent furnace 1 is converted into slag by collecting the same and returning it to form a pile 25 which is fed with dust adapted to be delivered to the bottom of the pile so that it is confined by the slag formed on the top of the pile by the burners 4, 5, the slag being withdrawn into a water pool 28 and delivered therefrom through a gate 29 when sufficient slag has been collected. The dust from the furnace settles into hoppers 9, 10, and a final collection of dust is deposited in a hopper 13 by an electrical precipitator 12. From the hoppers 9, 10, 12 the dust is discharged by wind swept dust valves 14, 15, 16 of the kind described in Specification 383,683, and the outlets of the valves connect to a common pipe 1611 leading to a vacuum dust collector and separator 17. A feeder valve 19 with blades 20 driven by a motor 21 delivers the dust to a flexible pipe 22 connected to the inlet 23 of a feeder ram R shown in Fig. 5 in section. The actual plunger 67 is watercooled, and it passes through a stuffing-box 77 with a formed annular ring supplied with compressed air which prevents the passage of dust into the stuffing box owing to the loose fit of the plunger 67 in the water-cooled guide tube 38 which is attached by screws 39 to a plate which is welded to the boiler tubes. The actuating-means for the plunger is mounted on a platform 41 supported by struts from the boiler, and comprises a crank mechanism, driven by a motor, and a crosshead 71 connected by screws to the plunger 67. The tube 38 is connected by a sealed joint to the casing 32 which is effective when expansion occurs.
Patent GB-199150-A (GB)
Title: Apparatus for controlling railway signals of the electric light type, whereby the "danger" indication is extinguished when the "clear" indication is illuminated, without breaking the circuit to the lamp giving the "danger" indication
IPC: B61L5/18
Filed: 1922-03-18
Abstract: 199,150. Dell, R. March 18, 1922. Lamp signals.-Lamps indicating two or three different signals are energized by alternating or pulsating currents and are operated, without interrupting the circuits through which the lamps are supplied, by the use of a transformer in which the distribution of the magnetic flux within the core is variedi to energize one or other of the lamps. Fig. 1 shows two lamps N, K each in series with two coils wound on the limbs A, C of the transformer. The limb B carries a continuously energized winding D which produces similar but unequal fluxes in the limbs A, C. The coils H, J have induced .is them opposing equal E.M.F.'s so that the lamp K is not energized. The E.M.F.'s in the coils E, F are added and lamp N is lighted. When coil L is energized the flux in limb A is reversed and that in limb C is increased in magnitude. The coils E, F have induced in them opposing E.M.F.'s and the coils H, J assist one another and the lamp K is lighted. A modification is described for controlling three lamps by arranging the main winding of a second transformer to be energized by the coils H, J of the first transformer. Indicators or repeaters may be controlled by extensions of the coils E, F. The coil M in series with the coil L is used to prevent damage in case of a short-circuit on the leads to the supply mains.
Patent GB-626162-A (GB)
Title: Screwdriver
IPC: B25B19/00
Filed: 1947-03-24
Abstract: 626,162. Screwdrivers; combination tools; handles. SKAMSER, S. March 24, 1947, No. 7992. Convention date, July 30, 1946. [Classes 61(i), 61(ii) and 61(iii)] [Also in Group XXII] A screwdriver has inertia means 16 having driving connection with and slidably adjustable on the non-circular shank 12 to assist in spinning the screwdriver when threading loose fitting screws 29 into tapped holes 31. A cap 14 is rotatably attached to the top of the handle 11, of insulating plastic material, to which the shank 12 is fixed. The hammer headshaped member 16 is fixed to the shank by tightening the thumb screw 24 and in the position shown is used either to spin the screwdriver or tc apply additional torque. For use as a hammer or prizing tool, the member 16 is fixed at the blade end of the shank.
Patent GB-536207-A (GB)
Title: An improved building construction
IPC: E04B2/28
Filed: 1939-07-24
Abstract: 536,207. Walls. KOPELEWICZ, B. J. July 24, 1939, No. 7997. [Class 20 (iv)] Hollow walls of the kind formed of pre-cast studs and slabs and subsequently filled with a concrete filling have the slabs provided with interfitting edges, and the studs disposed at intervals and provided with vertical continuous grooves to receive either concrete filling or the edges of the slabs. In one form, Fig. 1, the studs 1 are disposed within the outer wall a and act as spacers between the outer and inner walls, the grooves in the studs then receiving part of the filling material placed between the walls. The slabs are provided with interfitting portions on their vertical edges. In another form as shown in Fig. 2, the studs 6 are disposed at the corners of the building and the vertical grooves in the studs receive the edges of the end slabs which form the walls. The studs may be reinforced with vertical reinforcement. Blocks as shown in Fig. 4 may be laid in a continuous course or at intervals, on the upper edges of the slabs to act as spacers. Specification 321,744, [Class 20 (iii)], is referred to. Reference has been directed by the Comptroller to Specifications 721/06, [Class 20], 153,633, 176,868, 185,222 and 241,364, [all in Class 20 (iv)].
Patent GB-344672-A (GB)
Title: Improvements in refrigerators
IPC: C04B33/13
Filed: 1930-03-12
Abstract: 344,672. Refrigerators. LEHMANN, E. M., 4, Schutzenstrasse, Gera, Reuss, Germany. March 12, 1930, No. 8004. [Class 29.] A refrigerator is cooled by a compression refrigerating machine mounted upon an evaporator shelf 8 having ice-making trays 67, 68 and communicating through a float-controlled orifice 61 with a liquid refrigerant vessel 60 and through a pipe 58 with a hollow evaporator shelf 9. The shelf 9 communicates through a pipe 58 with another evaporator shelf 10 which communicates through a pipe 54 with the suction port of the compressor 52. The compressor discharges into a condenser coil 57 connected to the vessel 60. The switch 66 controlling the electric motor 51 driving the compressor is operated by a thermostat 63.
Patent GB-557881-A (GB)
Title: Improvements in or relating to the production of iron or steel alloys
IPC: C21C7/00
Filed: 1942-06-11
Abstract: 557,881. Alloys; granulating. UDY, M. J. June 11, 1942, No. 8008. [Classes 82 (i) and 82 (ii)] A ferro-alloy, particularly ferro-chromium, is obtained in a uniform condition suitable for use in incorporating. alloying constituents in molten iron or steel, by finely dividing one or more furnace products either by granulating by chilling from a molten state or by grinding and mixing after solidification. Granulation may be effected by cold gas or liquid under pressure, preferably by pouring the molten alloy downwards through two or more vertically spaced streams of water flowing transversely to the falling metal. The fine product may be agglomerated with binders , such as sodium silicate, Portland cement, sodium carbonate, or sodium nitrate. Specifications 520,331, 544,553, 545,418, and 552,312 are referred to.
Patent GB-1273491-A (GB)
Title: Sheet feeder
Inventor: SPIESS HELMUT
IPC: B65H5/00
Filed: 1970-02-19
Abstract: 1,273,491. Feeding sheets. H. SPIESS. 19 Feb., 1970 [3 March, 1969], No. 8009/70. Heading B8R. The drive of a sheet feeder 1 comprises two coaxial shaft sections 4 and 5 connected through gearing 6 which permits relative angular adjustment of the sections to advance or retard arrival of sheets at the front stops. The sheets may be fed into a processing machine 2 on feed belt 8. The feeder is driven synchronously with the processing machine via drive shaft 3. A processing machine may be fed with pairs of superposed sheets from two sheet feeders (Fig. 2, not shown), both of which comprise drives arranged as described above. The gearing 6 may be a differential.
Patent GB-431487-A (GB)
Title: A method of producing substituted phenols
IPC: C07C39/10
Filed: 1934-03-14
Abstract: Nuclear a -a -g -g -tetramethylbutyl substitution products of polyhydric phenols and ethers thereof are manufactured by condensing a polyhydric phenol having at least one nuclear position o- or pto a hydroxyl group available for substitution, or ethers thereof, with at least one molar equivalent of diisobutylene in the presence of a kationoid condensing agent, e.g. acids or acidic salts, such as sulphuric acid, sodium bisulphite, phosphoric acid, monosodium phosphate, zinc chloride, aluminium chloride, boron trifluoride, benzenesulphonic acid, toluenesulphonic acid, hydrochloric acid and sodium acid sulphate. The products can be used as disinfectants and insecticides.  The polyhydric phenols and ethers employed may be substituted by halogen or sulphonic, alkyl, aryl, aralkyl, nitro, carboxylic or azo groups.  In examples, diisobutylene is reacted in the presence of sulphuric acid with: (1) resorcinol; (2) catechol; (3) hydroquinone; (4) pyrogallol; (5) guaiacol.  In examples (1) to (4) the reaction is effected in solution in glacial acetic acid, which may be replaced by sulphuric acid itself, higher fatty acids, e.g. propionic acid, or alkyl sulphates, or mixtures of solvents.  In (5) no solvent is employed.  Specifications 398,218 and 415,715 are referred to.
Patent GB-128887-A (GB)
Title: Improvements in or relating to Water-cooled Cylinders of Internal Combustion Engines.
Inventor: LAGERSTEN AXEL
IPC: F02F1/16
Filed: 1919-03-31
Abstract: 128,887. Lagersten, A. July 9, 1918, [Convention date]. Cylinders, cooling. - In order to prevent fracture of a cylinder at the flange in consequence of unequal expansion, the flanges of both cylinder barrel and jacket have parts 3, 4, and 5, Fig. 1, cut away, as shown in Fig. 3, and holes 7, 9 are drilled through the cylinder flange, the cover 6, or both, for the admission of water to the cavity b. The joint at e-f is inclined.
Patent GB-931374-A (GB)
Title: Textile fabrics
Inventor: GAZZARD EDWARD GEORGE
IPC: D04H1/74
Filed: 1961-03-06
Abstract: 931,374. Agglutinated fibrous fabrics. IMPERIAL CHEMICAL INDUSTRIES Ltd. Feb. 16, 1962 [March 6, 1961], No. 8051/61. Class 42 (2). A fibrous non-woven fabric is produced by impregnating a carded web of fibres or a web in which the fibres are randomly disposed with a solution of an acrylonitrile polymer or a copolymer containing a major amount of acrylonitrile, gelling the polymer or copolymer solution in the impregnated web by immersion in a liquid which is a non-solvent for the polymer or copolymer and is miscible or partly miscible with the solvent employed for the acrylonitrile polymer or copolymer, and thereafter heating to dry the fabric. The web may be impregnated either by spraying the solution thereon or by total immersion of the web in the solution followed by squeezing between rollers to express the excess solution. Suitable solvents for the acrylonitrile polymer or copolymer are dimethyl formamide, dimethyl acetamide, ethylene carbonate, dimethyl sulphoxide, butyrolactone and concentrated solutions of thiocyanates, e.g. sodium thiocyanate. The gelation of the impregnated web is preferably effected by water. If the solvent for the acrylonitrile polymer or copolymer is ethylene carbonate, then the liquid used to effect gelation may be methanol, ethanol, ethyl acetate, methylene chloride, ethylene dichloride, chloroform, benzene, toluene or dichloroethyl ether, all of which are miscible in all proportions with ethylene carbonate, or diethyl ether, nbutanol, carbon tetrachloride or trichloroethylene which are partially miscible with ethylene carbonate. If the solvent is dimethyl sulphoxide then the gelation liquid is methanol. The gelation liquid may contain a proportion of the solvent for the polymer or copolymer. The acrylonitrile may be copolymerized with a minor amount of ethyl acrylate or butyl acrylate, optionally in the presence of polyacrylic acid. The fibres of the web may be viscose rayon, acetate rayon, nylon or polyester or a mixture thereof. The fibrous web may contain a small amount of cellulose acetate or polyacrylonitrile fibres which may be softened or dissolved by the impregnation treatment. Examples are given stating the weight of the fibrous web, amounts of the acrylonitrile polymer or copolymer and the solvent, the length of time of immersion in and the temperature of the gelation liquid, and the amount of binder in the finished fabric.
Patent GB-1305751-A (GB)
IPC: D04H3/12
Filed: 1970-02-19
Abstract: 1305751 Laminated products KIMBERLEYCLARK CORP 19 Feb 1970 [7 March 1969] 8071/70 Heading B5N [Also in Division D1] Non-woven scrim made from adhesivecoated threads is passed around a heated, arcuate release surface and separated from the surface after the adhesive has reached its elastomeric point. In the arrangement shown, laterally spaced threads 10 are coated with adhesive by passing them over a grooved roller 12. The threads pass on to an endless silicone rubber carrier belt 16 which is heated to increase the level of tack in the adhesive. A second set of spaced threads 22 are positioned on the first and extend transversely thereto to form a scrim. The bolt 16 and scrim 25 then pass over a heated arcuate release surface 26 so that the adhesive reaches at least its elastomeric point. The belt 16 is then separated from the surface 26 followed by separation of the scrim. Alternatively, both separations may take place simultaneously. Further adhesive may be applied to the scrim at 36 and 38 and layers of cellulosic wadding 40 and 40a applied thereto. The scrim material may be nylon, rayon or glass and the adhesive polyvinyl acetate in acetone, polyvinyl chloride or acrylonitrilebutadiene.