baber/WOPTO huggingface dataset:
Patent GB-1106922-A (GB)
Title: Improvements in or relating to centrifuge apparatus
Inventor: HARBOTT NORMAN RICHARD
IPC: B04B13/00
Filed: 1965-01-25
Abstract: 1,106,922. Centrifugal separators. MSE HOLDINGS Ltd. 19 Jan., 1966 [25 Jan., 1965], No. 3264/65. Heading B2P. In a centrifuge designed to allow for the introduction of rotors of different sizes, each rotor is provided with a disc 12 having a diameter specifically related to the size of the rotor, and after the introduction of a rotor of a particular size a sensing arm 13 fixedly mounted on 'a rotatable shaft 14 is moved into contact with the periphery of the disc 12 so that a permanent magnet 17, carried by an arm 16 fixedly mounted on the lower end of the shaft 14, is moved from a neutral position to a position in which it cooperates with one of a number of switches 18 disposed one in each of a number of circuits controlling the speed of the centrifuge driving motor 11 whereby the particular rotor introduced is driven at a predetermined speed. The sensing arm 13 may be moved manually into its operative position. Alternatively, the arm 13 may be spring-loaded and may be moved upon the release of a detent. In a further arrangement, the arm 13 may be electrically actuated so that, after the insertion of a rotor and actuation of a switch effected, for example, as a result of closure of the lid or cover of the centrifuge, the arm will be automatically moved into contact with the disc 12. In this case, trip switches are incorporated to ensure return of the arm 13 to a neutral position before the fitting of a rotor of a different size and the circuitry is such as to interlock with the main control switch of the centrifuge. Reference has been directed by the Comptroller to Specification 890,624.
Patent GB-415764-A (GB)
Title: Improvements in or relating to the manufacture of compositions containing cellulose derivatives and products made therefrom
IPC: C09D101/30
Filed: 1933-02-03
Abstract: A substantially water-insoluble ether of a sugar which contains for every six carbon atoms in the sugar molecule, at least one hydroxyl group and at least one alkyl, aryl or aralkyl group. is used as a plasticizer for cellulose derivatives in plastic or coating compositions, dopes, lacquers and the like.  Such ethers include those produced by partial benzylation of sucrose, or glucose which are solid or fairly viscous liquids insoluble in water but miscible with the usual organic solvents.  They may be used as the sole plasticizer or with other softeners and plasticizers.  Benzylated sucrose may be prepared by heating a mixture of cane sugar, caustic soda, water and benzyl chloride, the finished product containing 2,6 benzyl groups per molecule. Benzyl glucose may be prepared by reacting glucose and benzyl chloride together with caustic soda, and extracting with chloroform.  In examples are parepared (1) a lacquer from an industrial spirit wet low viscosity nitrocellulose, Damar, tricresyl phosphate, benzyl sucrose, and an ethyl lactate--benzene mixture which is diluted with toluene; (2) a lacquer from benzyl cellulose, Copal, benzyl sucrose, toluene, industrial spirit; (3) a floor covering plastic from benzyl cellulose, benzyl sucrose, yellow ochre and cork dust; (4) a moulding powder from benzyl cellulose, Copal, benzyl sucrose, Blanc fixe; (5) a dope for films from benzyl cellulose, industrial spirit, benzyl sucrose, benzene; (6) a dope for films from benzyl cellulose, industrial spirit, benzyl glucose, toluol.  Other products adverted to are filling, and priming materials and artificial leather.  Specification 392,191, [Group IV], is referred to.  The Provisional Specification describes also the use of ethers of water-soluble carbohydrates and includes an example for the preparation of a dope using benzyl dextrine.
Patent GB-777054-A (GB)
Title: Improvements in or relating to reflex klystrons
Inventor: WOOTTON DOUGLAS JAQUES
IPC: H01J25/30
Filed: 1954-02-05
Abstract: 777,054. Velocity-modulated tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Jan. 28, 1955 [Feb. 5, 1954], No. 3402/54. Class 39(1). A circuit arrangement including a reflex klystron having separate electrodes adjacent to the cathode and a reflecting electrode composed of a plurality of separate parts includes means for applying different potentials to said electrodes adjacent said cathode whereby the electron beam emanating from the cathode can be deflected and caused to pass through the gap in the resonator in a position where minimum interception of electrons by the wall of the resonator occurs and for applying different potentials to the separate parts of said reflecting electrode whereby the beam can be reflected back through said gap and also deflected so that it passes through said gap in a position where minimum interception of electrons by the wall of the resonator occurs. The reflex klystron shown comprises an annular cathode 1, an annular resonator 2 and a ring-shaped reflecting electrode having two parts 4a and 4b. Electrodes 5 and 6 are positioned one on each side of the cathode 1. The medial plane 9 of the cathode 1 and the medial plane 10 of the reflecting electrode 4a, 4b are offset on opposite sides of the medial plane 8 of the resonator 2. The potentials applied to the electrodes 5 and 6 and to the reflecting electrode parts 4a and 4b are separately adjustable by means of the potentiometer arrangement and make it possible to construct a reflex klystron for operating at very high frequencies where the accuracy required to align the electrodes in accordance with known practice is likely to be excessive. In an alternative embodiment the cathode 1, electrodes 5 and 6 and reflecting electrode parts 4a and 4b are arranged as far as practicable symmetrically with respect to the medial plane 8 of the resonator 2. With this arrangement any slight inaccuracies in the symmetry of the electrodes with respect to the medial plane, which would cause electrons to impinge on the resonator wave can be compensated by adjusting the potentials applied to the electrodes. The positions of the cathode 1 and electrodes 5 and 6 may be interchanged with the reflecting electrode parts 4a and 4b and the invention may be applied to reflex klystrons employing beams in the form of pencils or of flat elongated form in cross-section or beams of hollow circular form in cross-section. In the latter case the deflecting and reflecting electrodes may comprise more than two parts in order to obtain a greater control over the direction of the electron beam.
Patent GB-1460346-A (GB)
Title: Vibrator assemblies
IPC: E01C19/28
Filed: 1974-01-24
Abstract: 1460346 Fluid actuators RICHIER SA 24 Jan 1974 [24 Jan 1973] 3406/74 Heading F1D [Also in Division F2] An adjustable stroke double-acting fluid actuates for the hydrostatic transmission of a road compacting vehicle comprises a piston 26 slidable within a cylinder 21 and biased to a central position by a spring 34 acting between a cap 30 and washer 35 which co-operate respectively with a shoulder 32 and nut 36 on a rod 22 of the piston. The nut 36 is axially slidable within a sleeve 38 screwed into the cylinder 21. The nut 36 and sleeve 38 have threads of the same pitch and hand so that by turning a handle 43 integral with the sleeve 38, the nut 36 and sleeve 38 move together axially relative to the rod 22 and cylinder 21 to adjust the distance i between the cap 30 and washer 35 and thus adjust the stroke of the actuator.
Patent GB-1245164-A (GB)
Title: Oscillatory machine for conveying or screening hot bulk material
IPC: B07B1/46
Filed: 1969-01-22
Abstract: 1,245,164. Vibrating conveyer. KLOCKNER-HUMBOLDT-DEUTZ A.G. 22 Jan., 1969 [23 Jan., 1968], No. 3670/69. Heading B8A. [Also in Division B2] A vibrating or screening conveyer 1 for hot bulk material is carried by a counter mass 2 by means of rubber blocks 8, 9 which are positioned between an element 7 secured to the conveyer and members 4, 3 secured to the mass 2. Cooling elements 10 having passages 12 therein for cooling liquid are inserted between each rubber block and its two supporting surfaces and plates 13 are secured to the elements 10 to shield the rubber blocks from the heat of the conveyer Each assembly of two cooling elements with a rubber block between is slid as a package between 7 and 4 or 3 while member 4 is secured by screws to member 3 to keep the block together. In Fig. 3, a conveyer trough 1<SP>1</SP> is driven by an eccentric shaft 14 and is supported on a number of assemblies whose cooling elements are connected in series.
Patent GB-739828-A (GB)
Title: Printed circuit unit assembly
IPC: H05K1/14
Filed: 1954-02-08
Abstract: 739,828. Supports for circuit components. SYLVANIA ELECTRIC PRODUCTS, Inc. Feb. 8, 1954 [Feb. 6, 1953], No. 3688/54. Class 38 (1). A printed circuit assembly is made up of panel units such as 2, 3, each carrying a portion of the circuit and being interlocked with each other by dovetail joints 5, 6. The terminal conductors such as K, L on unit 2 extend to the edges of the units and are aligned with corresponding terminals on the adjacent unit, such as B<1>, A<1> on unit 3, the connections between the terminals being made by dip-soldering. A screw and washer 8, 9 passing through a hole 10 between two units assists in maintaining the latter in alignment and the units are finally mounted between U-shaped channel members 1. Certain of the conductors correspond with holes 19 in the panels to receive legs 18 on panels such as 12 arranged at right angles to the planar panels, said legs having conductors printed thereon to form terminals. To avoid the use of the screw and washer 8, 9, the dovetail joint may be formed so that one half is recessed along its edge and the other has a projecting ridge whereby the two halves snap together (Fig. 6, not shown).
Patent GB-612608-A (GB)
Title: Improvements relating to the precession of gyroscopes and to precession control systems and gyroscopes so controlled
IPC: G01C19/44
Filed: 1945-02-14
Abstract: 612,608. Converting; automatic control systems for gyroscopes. SPERRY GYROSCOPE CO., Inc. Feb. 14, 1945, No. 3757. Convention date, Feb. 14, 1944. [Classes 38 (ii) and 38 (iv)] [Also in Group XX] Means for precessing a gyroscope into alignment with a reference axis, e.g. the true vertical, are controlled by an output signal from an electrical network which integrates an input signal received from the pick-off means which detect relative displacement of the spin axis from the reference axis. An electromagnetic pick-off 9 has one part 11 carried by a pendulum and an armature 17 carried by one of the gimbal trunnions of the gyro. The member 11 comprises a central pole energized from a source of A.C. 16 and two side poles carrying secondary windings 21, 22, connected in opposition to a potentiometer 27 and to the primary of a transformer 28<SP>1</SP>, which is thus energized with an A.C. voltage, the magnitude of which corresponds with the magnitude of the displacement between the parts 11, 17 and the phase of which corresponds with the direction of displacement. The output of the transformer 28<SP>1</SP> is amplified at 29 and applied through the transformer 30 to the grids of the two twin triodes 31 and 32 in a full wave rectifier circuit. The anodes of the twin triodes 31, 32 are energized through transformers 33, 34 respectively from the source 16 so that the circuit is made phase sensitive. The anode currents of the twin triodes 31, 32 are connected by leads 35, 38, respectively, to chokes 36, 39, which filter out the A.C. components and allow D.C. potentials proportional to the magnitude of the relative displacement of the parts 11, 17 to be applied to either the condenser 37 or the condenser 40 according to the phase of the signal in the transformer 28<SP>1</SP>. The voltages across the condensers 37, 40 are applied to integrating networks comprising respectively resistances 48, 49 and condensers 50, 51. The voltages across the latter are amplified at 53, 55 and applied to the coils 56, 57 of torque motors which exert a precessing torque on the gyro proportional to the integrated signal. The integrating circuits have large time constants so that voltages at the pendulum oscillation frequency will be integrated substantially to zero. In a modification the coils 56, 57 may operate a relay for switching on or off a D.C. or A.C. torque motor. In a further modification, a two-phase A.C. torque motor is used, one winding being connected to one phase of a three-phase A.C. supply. A second phase of the supply is used to energize the anodes of the valves 53, 55 through a transformer in such a manner that the supply to the transformer is 90 degrees out of phase with the supply to the first winding of the torque motor, the secondary of the transformer being connected to the anodes via a central tap on the second winding of the motor.
Patent GB-329010-A (GB)
Title: Improvements relating to furnaces
IPC: F23M5/02
Filed: 1929-02-05
Abstract: 329,010. Foltz, I. W. Feb. 5. 1029. Air supply, heating.-A boiler furnace has air passages 19 embedded in the side walls of the firebox communicating with looped 'horizontal conduits 15, 16 in the floor or walls of the combustion chamber behind the firebridge, the air being drawn from the ash-pit at 11 by a conduit 13 and the heated air being supplied to the firebox at 20. The conduits 19, 13 communicate with the looped conduits 15 by passages 14 in the bridge 4<1>. A central pier 3 on the bridge exends to the boiler 1 and provides two lateral. openings opposite wings 5 extending inwardly from the side walls of the combustion chamber, causing eddying of the gases. At the rear of the combustion chamber a central pier 4 is arranged opposite the space between the wings 5. Clean-out doors 21 are provided for the conduits 15, 16. In forced draught furnaces the air pipe supplying air to the ash-pit is tapped to supply the conduits 13. The air heating conduits may be arranged entirely in the side walls of the setting. The invention may be applied to gas, oil or pulverized coal fired furnaces.
Patent GB-441351-A (GB)
Title: Improvements relating to apparatus for trapping dust in connection with bore holes
IPC: B23Q11/00
Filed: 1935-02-06
Abstract: 441,351. Percussive drills. PYRENE CO., Ltd., and HUNTER, J. N., Great West Road, Brentford, Middlesex. F e b. 6, 1935, No. 3891. [Class 124] A device for trapping dust from bore holes comprises a tube 1, the end 3 of which is tapered and has longitudinal slots 9. A branch pipe 6 is connected to a suction device. The outer end of the tube carries a rubber screen 11 surrounding the drill and a flexible hood 10 encloses the dust prior to the tube end 3 entering the bore hole.
Patent GB-308038-A (GB)
Title: Improvements in and relating to the attachment of spoke enclosing discs to vehicle wheels
IPC: B60B7/02
Filed: 1928-02-08
Abstract: 308,038. Rycroft, N., Corner, J. A., Meates, T. W., and Cornercroft, Ltd. Feb. 8, 1928. Disc wheels.-Dust covers for wheels are carried by independent members which are secured to the wheel by the wheel securing means. The members consists of a flanged cylinder 5 secured by the wheel bolts 2'* over the end of the permanent hub 3 and screwed externally at 5b to receive a clamping nut 6 for the disc.
Patent GB-529031-A (GB)
Title: Improvements in or relating to working fluids and processes of producing cold by the absorption refrigerating principal
IPC: C09K5/04
Filed: 1939-02-07
Abstract: 529,031. Refrigerating. WILLIAMS OIL-OMATIC HEATING CORPORATION. Feb. 7, 1939, No. 3978. Convention date, Feb. 16, 1938. [Class 29] Absorption systems.-A non-fluorinated halogenated aliphatic hydrocarbon containing the dichlormethyl group is employed as refrigerant in association with an absorbent consisting of a non-halogenated liquid organic compound having divalent oxygen atoms both linked to carbon. In particular methylene chloride and chloroform are used as refrigerants and a disubstituted polyglycol diether, diester or ether ester, such as tetraethylene glycoldimethyl ether as absorbent. Other absorbents are mentioned in the Specification.
Patent GB-189382-A (GB)
Title: Improvements relating to coffins
IPC: A61G17/00
Filed: 1922-02-10
Abstract: 189,382. Pickering, A. J., and Pickering, J.. Feb. 10, 1922. Coffins.-A sheet-metal coffin comprises a shell 1 and lid 10, in which an upstanding ridge 3. on the shell is adapted to engage in a channel 11 pressed up from the sheet metal forming the lid, a rubber or other resilient packing strip 4 being placed between the two parts when the coffin isclosed. The rubber strip may be held in position on the shell by bending over the edge 5 of the flange 2 of the shell, and by extending upwardly the strengthening-pieces 7, as at 8, to bear on the inner edge of the strip. In a modification, the ridge is formed on the lid, and the channel pressed out in the shell.
Patent GB-538288-A (GB)
Title: Improvements in or relating to multiple expansion engines
IPC: F01L29/06
Filed: 1940-03-04
Abstract: 538,288. Reversing-engines. KNOX, S. L. G. March 4, 1940, No. 4055. [Class 122 (iv)] A multiple-expansion engine comprises a number of low-pressure cylinders receiving steam from a receiver supplied by a high-pressure cylinder ; these cylinders are supplied and exhausted by such as the ports aC, cC of the high-pressure cylinder C each controlled by valves a, b, c each valve controlling ports of two different cylinders. Boiler steam is supplied to the high-pressure cylinder, and receiver steam discharged to the low-pressure cylinders through a reversing valve controlling channels leading to the valves a, b, c, so that in one direction of rotation steam enters the cylinders by ports bA, cB, and aC, and in the other direction by ports aA, cC, bB. Exhaust takes place mainly through uniflow ports Ax, and those ports bA &c. which in either direction of rotation do not supply steam act as supplementary exhaust ports. The distributing valve comprises multiple pistons on a rod, co-acting with ports in a sleeve.
Patent GB-691722-A (GB)
Title: Compound foundation piles composed of prefabricated elements
IPC: E02D5/52
Filed: 1952-02-15
Abstract: 691,722. Piles. BLATON, A., and BLATON, E. Feb. 15, 1952 [Feb. 16, 1951], No. 4058/52. Class 68(ii) Compound foundation piles are made of prefabricated concrete elements, or blocks, 1 each of which has a metal strap 4 to project from its lower face and engage in a vertical recess 2 in the underlying block, the blocks being clamped together by means of wooden wedges 7, 8 which are driven between the upper face of a horizontal recess 3, passing through the block considered and communicating with the respective vertical recess 2, and the transverse portion of the strap of the overlying block. The legs 5 of each strap 4 are embedded within the concrete and are engaged by a pin 6, Fig. 4. The sides of the recesses 2 have outwardly diverging sides, a channel 10 being provided to connect the lower face of each blocK with a side wall so that the vertical recess in the underlying block may be filled, e.g. with a cement mortar or the like. The free space 9, Fig. 3, left on the lower side of the strap 4 may be filled with a third wedge, and if desired, a sheet of roofing or the like may be interposed in each joint.
Patent GB-866691-A (GB)
Title: Novel pentenyne derivatives and a process for the manufacture thereof
IPC: C07C47/277
Filed: 1959-02-06
Abstract: The invention comprises compounds of the formula:  <FORM:0866691/IV (b)/1> and their preparation by reacting a 1,1,3,3-tetraalkoxy-2-methylpropane with an equimolar amount of water in the presence of an acid, condensing the resulting 1-alkoxy-2-methylpropen-(1)-ol-(3) by means of an organometallic reaction with acetylene, and transforming the 1-alkoxy-2-methyl-3-hydroxypenten-(1)-yne-(4) so formed into the required substances by treatment with an acetalising agent in the presence of an acidic agent.  The reaction with water is preferably carried out in the presence of a strong acid such as sulphuric or p-toluene sulphonic.  The condensation step may be carried out in liquid ammonia using an alkali metal or alkaline earth metal acetylide.  Suitable acetalising agents are esters of ortho acids (e.g. orthoformic acid ethyl ester) or glycols (e.g. ethylene glycol); suitable acids are p-toluene sulphonic acid and, for acylic acetals, phosphonic acid containing a trace of p-toluene sulphonic acid; it is advantageous to carry out the preparation in the presence of an alkanol.  Specification 845,820 is referred to.
Patent GB-726081-A (GB)
Title: Improvements in ashbins
IPC: B65F1/00
Filed: 1953-02-16
Abstract: 726,081. Ashbins &c. EVANS, W. L. Nov. 24, 1953 [Feb. 16, 1953], No. 4233/53. Class 26. An ashbin comprises an upper compartment a, a lower compartment b having a sidedoor g and adapted to contain a removable receptacle h, and a slide c to enable the contents of the upper compartment to be discharged into the receptacle. The upper compartment may have a vertical division i dividing it into two unequal parts covered by lids d, e.
Patent GB-577032-A (GB)
Title: Computing mechanism for use with fluid dispensing apparatus
IPC: B67D7/22
Filed: 1939-02-09
Abstract: 577,032. Counting-apparatus. AVERYHARDOLL, Ltd. (Soc. Anon. pour tous Appareillages Mecaniques). Feb. 9, 1939, No. 4248. [Class 106 (i)] In a computing mechanism for use with fluid-dispensing apparatus in which a volume register and a cost register indicate the quantity and price of the fluid delivered, the movement of the volumetric register is transmitted to the cost register through a -train of pinions cooperating with two sliding gears, one of which transmits the centimes and a predetermined number of decimes, while the other transmits the number of francs and decimes less the predetermined number of decimes transferred to the centimes transmission. Thus, a unit price of, say, 2.35 francs would be split into 2 frs. 1 decime plus 2 decimes 5 centimes and, since the unit price can be assumed to fluctuate between certain limits, the number of possible gear ratios to be provided can be kept to a minimum. A shaft 229, carrying a train of forty-two pinions, is driven from the volumetric meter through a gear 221. From the smallest pinion 222, having eighteen teeth, each next pinion has one tooth more, up to the largest pinion with sixty. This conical train is engaged by sliding gears 230, 252 which drive further gears 251 slidable on grooved shafts 231, 234, the rotary movements being combined by a differential 233, 261. The shafts 225, 227 supporting the gears 230, 252 are threaded to co-operate with nut members 224, the pitch of thread being equal to the distance between adjacent pinions on the cone 222. The shafts 225, 227, are eccentrically, mounted on ball joints 253, 254 and can be rotated by knobs 226, 228 to disengage and move laterally to the next pinion the sliding gears, and to effect a change in the unit price which is indicated on discs 270 operated through chain drives from wheels 240, 241 on the respective shafts. The gears 230, 252 are resiliently mounted in the nut members 224. To prevent a change in price being effected during the operation of the mechanism, a threearmed member 281 engages slots 278b, 276c in the bosses of wheels 240, 241, being held in this position, against the tension of a spring 272, by a pin 282 on a wheel 275 in connection with the cost register zeroizing mechanism. When this wheel is rotated and the register is zeroized, the three-armed member 281 is rocked out of engagement with the price-adjustment knobs by its spring 272. To take up play in the mechanism a wheel 70 on the cost register zeroizing shaft 113 rotates a shaft 290 carrying a cam 292, engaging a support 293 under the tension of a spring 294. As the shaft 290 is rotated during the zeroizing operation it drops on to a lower part of the cam and a friction wheel 291 engages a friction flange 296 thus driving the wheel 102 and taking up the play.