baber/WOPTO huggingface dataset:
Patent GB-425509-A (GB)
Title: Device for atomizing a liquid in air
IPC: F23D11/10
Filed: 1934-03-08
Abstract: 425,509. Spray - producers. ANDERSEN, M. G., 16, Vagtelvej, Frederiksberg, near Copenhagen. March 8, 1934, No. 7449. Convention date, Jan. 13. [Class 69 (iii)] [See also Group XI] A device for atomizing liquid in air of the kind in which the liquid is contained in a closed tank acted on by compressed air comprises a solid preferably cylindrical nipple 19 having an axial bore 15 communicating at its lower end with a tube immersed in the liquid in the tank and opening at its upper end into the atmosphere and also a radial passage 14 communicating with the pressure air contained in the tank. In the form shown the nipple 19 is provided with a perforated flange which screws into an internal flange 18 on the nipple 9 which is formed with an external thread for screwing into a fitting on the tank. In a modification the nipple 9 is formed with the passages parallel to the axis into one of which a liquid supplying tube and spraying nipple fit and a transverse passage to carry compressed air to the passage 14. The apparatus is stated to be particularly applicable for atomizing fuel oil in oil-stoves, soldering-lamps, &c.
Patent GB-636549-A (GB)
Title: Improvements in or relating to servo control or actuator mechanism
IPC: F16D41/06
Filed: 1947-03-18
Abstract: 636,549. Locking rods. CASE, F. C. March 18, 1947, No. 7462. [Class 80 (iii)] [Also in Group XXXVIII] In a longitudinally operating servo-motor device, -a power driven output member is controlled by the displacement relatively thereto of an input member, and is normally locked in position by a one way wedging clutch, in which balls or rollers are spring influenced to engage inclined surfaces at overlapping portions of the input and output members so that initial displacement of the input member frees the balls or rollers, disengages the clutch, and initiates corresponding power movement of the output member. Figs. 1, 2 show an anchor member 11 supported within hollow sliding input and output members 13, 12 by pins 14, 15 extending through slots in the sliding members into rigid supports 18, 19. The output member terminates in a split hollow head 13a, 13b, having internally shallow V-grooves 24, 25 and opposite flanges 26, 27, and containing the end of the output member 12, which carries pocketed coil springs pressing rollers 30, 31 into the V-grooves of the input member normally to centralise the latter relative to the output member, whose end is formed internally with inwardly directed inclined faces 32, 33, 34, 35 co-operating with spring separated rollers 36, 37, 38, 39 normally to lock the output and anchor members by wedge action. Longitudinal movement of the input member causes flange 26 or 27 (according to sense of the movement) to unlock the output member and close contacts 43, 45 or 42, 44 in a known control circuit of an electric motor, driving the output member through a rack and pinion to follow the input movement until the lost motion between the members is taken up, the operative contacts open, and the output member is again locked. In a modification (Fig. 3, not shown) a tubular anchor member surrounds and is normally locked to the " diabolo " shaped head of the output member by a ball clutch retained by a cage carried by the input member. If the motor supply fails, the input member takes up the lost motion and moves the output member directly, while the motor may be automatically disabled if its power falls below a fixed minimum. A plurality of centralising and clutch rollers may be disposed alternately round the circumference of the annular interacting members. The anchor member may itself be fixed by a clutch to permit the input and output members to be moved together if the internal clutch jams. The apparatus is applicable to aircraft controls and may be driven otherwise than electrically.
Patent GB-886466-A (GB)
Title: Deposition of boron from fused salt baths
IPC: C01B35/02
Filed: 1960-03-03
Abstract: 886,466. Preparing boron electrolytically. WEIL, W. M. March 3, 1960 [March 16, 1959], No. 7530/60. Class 41. Elemental boron is produced by electrolysis of molten potassium fluoborate containing up to 20% of B 2 O 3 . In examples, up to 5% of B 2 O 3  is dissolved in molten KBF 4  contained in a graphite crucible, the lower concentration of the boron oxide lowering the viscosity of the electrolyte to a reasonable level, and an iron plate is used as cathode. A temperature of 550‹ to 750‹ C. is maintained and a voltage of 7 to 8.6 v., at a C.D. of about 70 A.S.F. The boron deposited on the cathode may be removed by first protecting the hot cathode with a sodium chloride coating and in an inert gas, and when cool, leaching with water-containing acid, to loosen the deposit from the cathode, and purify the boron. Specifications 677,392 and 684,572 are referred to.
Patent GB-895760-A (GB)
Title: Improvements in or relating to spinning machines or frames
Inventor: ROBERTSON WILLIAM INNES
IPC: D01H5/22
Filed: 1960-03-03
Abstract: 895,760. Drafting-arrangements. ASSOCIATED WEAVERS Ltd. Feb. 28, 1961 [March 3, 1960], No. 7598/60. Class 120(2) A slip-draft device comprises a pair of rollers 7, 8 held in frictional engagement with one another by resilient means, one roller 7 having a smooth hard surface and the other a resilient surface, means being provided to drive the hardsurfaced roller. Roller 7 is of polished steel and roller 8 surfaced with leather, plastic or synthetic resin or rubber; roller 8 is carried by an arm 9 pivoted at 10, the arm being biased towards roller 7 by a rod 11 carrying a spring 12 confined between an adjustable nut 14 and a flange 13. The sliver is fed by fluted rollers 4, 5 via a V-cut roller 6 to the rollers 7, 8 and thence by a guide 16 to drawing-rollers 1, 2; the lower rollers of each pair are positively driven and the upper front and back rollers are biased towards the corresponding lower rollers by weights or springs.
Patent GB-883273-A (GB)
Title: Improvements in and relating to electric connector arrangements for circuit breakers
Inventor: DAVENPORT JOHN LAYTON
IPC: H02B11/04
Filed: 1958-03-10
Abstract: 883,273. Switchgear structures; air-break switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 10, 1959 [March 10, 1958], No. 7618/58. Class 38 (5). A connector arrangement suitable for use with any conventional circuit-breaker comprises a fixed member 1 consisting of a conducting element 3, separated from a tubular conducting element 5 by an insulator 4, and having a conductor-connecting end 3f and a cylindricalshaped contact 3c. A slidable member comprises a tubular conducting portion 2 having contacts 2cn, 2cf which, in the extended position shown, connect the contact 3c to a fixed plug 7. The contactmaking surfaces of members 2cn, 2cf, 3c, 5, are aligned so that in the retracted position of the connector. Fig. 2 (not shown), contacts 2cn, 2cf engage members 5, 3c, respectively, to connect the latter to an earth conductor 6. The member 5 may form a gland and the end 3f may be permanently connected to a line or circuit-breaker conductor, the latter arrangement facilitating earthing of either pole or isolation of both poles. The slidable members on each side of a polyphase breaker may be mechanically interconnected.
Patent GB-587401-A (GB)
Title: Improvements in safety blade magazine holders
IPC: B65D83/10
Filed: 1944-04-25
Abstract: 587,401. Holders for razor blade magazines. BENJAMIN, S. H. April 25, 1944, No. 7715. [Class 18] A safety-razor blade magazine holder adapted to receive and removably retain blade magazines comprises in a form adapted for single-edge blades, a top 50, Figs. 1, 3 and 9, with bladeengaging members 51 and stop pins 52, blade guides 55, 56, of which the latter may be introduced between the guard of a razor head and a used blade positioned thereon and moved forwardly so that the used blade slides up into a recessed portion 53 where it engages members 51, and side members 57, 58, 59 forming a housing for a blade magazine shown in Fig. 5. The new blade is ejected through opening 76, Fig. 9, by whatever mechanism is used for blade-ejecting. The magazine has recesses 178, Fig. 9, which engage around the stop pins 52 ; magazines not provided with sueh recesses are therefore unusable. An almost similar holder for use with two-edged blades is shown in place in Fig. 10. A further form adapted for magazines of the shape shown in Fig. 22 is described for use with narrow blades. Specification 584,499 is referred to.
Patent GB-1448192-A (GB)
Title: Arc welding apparatus and method of controlling an arc welding apparauts
IPC: B23K9/067
Filed: 1975-02-25
Abstract: 1448192 Arc welding control systems A P DENIS 25 Feb 1975 [11 March 1974] 7727/75 Heading H2H An arc welding system including a consumable electrode driven by a feed motor has means for initially feeding the electrode into contact with the workpiece at a reduced supply voltage, retracting the electrode from the workpiece at the full supply voltage to stroke the arc, sensing the supply voltage and at a preset voltage feeding the electrode towards the workpiece at a predetermined burn-off rate. A welding operation is initiated by manual closure of a push button switch PB1 to energize relay RL1. Contact RL1A moves to form a self holding circuit for the relay, contact RL1C connects the motor controller 26 to earth so that the feed motor 14 slowly drives the electrode 10 towards the workpiece 12 at a speed determined by potentiometer R2, and contact RL1B opens so that resistor R1 is connected between the exciter 22 and the welding generator 20 so as to reduce the voltage applied between the electrode 10 and workpiece 12 to a value below the arc striking value. When the electrode 10 touches the workpiece the relay RL1 becomes shortcircuited and de-energizes. Contact RL1B closes to restore the output of the welding generator 20 to its full value, contact RL1C returns to its original position so that the motor 14 reverses direction still under the control of potentiometer R2 to retract the electrode 10 from the workpiece 12 so as to strike an arc at full voltage and contact RL1A moves to connect the welding generator 20 to a voltage sensing circuit. When the output of the generator 20 reaches a desired welding value, determined by a Zener diode Z1 and resistor R4, transistors Q1, Q2, Q3 become conductive to energize a relay RL2. Contact RL2A moves to connect the controller 26 to earth so that the motor 14 again drives the electrode 10 towards the workpiece 12 at a predetermined burn-off speed determined by a potentiometer R3 connected to the motor by contact RL2B. The welding operation is terminated by manual closure of push button PB2 which energizes relay RL3, contacts RL3B, RL3C moving so that the motor 14 is controlled to drive the electrode 10 away from the workpiece 12 at full speed and contact RL3A opening so as to reduce the output of the welding generator 20. Numeral 28 represents a source of D.C. which can be obtained from either the welding generator 20 or from a separate source.
Patent GB-705786-A (GB)
Title: A process for preparing curing agents for curing glycidyl ethers, the resulting curing agents, their use and the resulting products
IPC: C08G59/50
Filed: 1952-03-26
Abstract: A curing agent for a glycidyl ether of a polyhydric alcohol or phenol is prepared by reacting the glycidyl ether of a dihydric phenol with at least 1.5 mols. of a secondary amine containing a single nitrogen atom per epoxide group in the glycidyl ether.  The secondary curing agents thus produced are soluble in organic solvents compatible with other glycidyl ethers and free from the odour of amine.  The preferred glycidyl ether for making the secondary curing agent is that of 2, 2 bis (4-hydroxyphenyl) propane.  It is preferably heated with the amine at 50-150 DEG C.  The glycidyl ether may be melted or dissolved to facilitate reaction with the amine.  Amines mentioned are diethylamine, dimethylamine, and piperidine.  Examples describe the preparation of secondary curing agents and their use for curing various glycidyl ethers as films, adhesives, or glass cloth laminating compositions.  The ether used for making the secondary curing agent need not be the same as the ether which is cured.  In some examples mixed ethers from a polyhydric phenol and a polyhydric alcohol are cured. Specification 691,543 is referred to.ALSO:Materials which may be used to cure glycidyl ethers of polyhydric alcohols or phenols to hard infusible bodies (see Group IV (a)) are made from at least 1.5 (preferably 2-5) mols. of a secondary amine reacted with one mol. of a glycidyl ether of a dihydric phenol, preferably 2, 2-bis (4-hydroxyphenyl)-propane. The products are soluble in a variety of organic solvents and compatible with the glycidyl ethers to be cured.  They are free from the odour of amine. Preferably the reactants are heated to 50-150 DEG C. but reaction may take place at room temperature. Super-atmospheric pressure may be employed especially with a low boiling amine such as dimethylamine. The amine is thought to react with the epoxy group to form 3-amino-2-hydroxypropyl or 2-amino-3-hydroxypropyl group-the amino residue being tertiary. Unreacted excess amine is removed from the products.  The reactants may be melted or dissolved to facilitate mixing. Examples describe the preparation of products from the reaction of glycidyl ethers prepared from epichlorhydrin and 2, 2-bis (4-hydroxyphenyl) (Mol. wt. 325-650) with dimethylamine, diethylamine and piperidine.  Specification 691,543, [Group IV(a)], is referred to.
Patent GB-654185-A (GB)
Title: Improvements in hammer drills for producing drill holes in rock or similar material
IPC: E21B6/00
Filed: 1948-03-15
Abstract: 654,185. Percussive drills. AKTIEBOLAGET ATLAS DIESEL, ANDERSSON, G., and SVENSSON, S. L. March 15, 1948, No. 7778. [Class 124] [Also in Group XXVI] A compressed air driven percussive drill has a differential piston, a drill turning device independent of the motion of the hammer, and a valve device including an annular valve seat at the periphery of the cylinder and a valve cooperating with the seat. As shown, a differential piston 2 reciprocates in a cylinder 1. the narrow diameter of the piston being guided in a lower cylinder head 12 which carries a compressed air driven drill turning mechanism 42, illustrated in Fig. 2 (not shown). The upper end of the cylinder 1 carries a valve seat on an axial flange 31 which co-operates with a valve 9 to admit air to the top of the piston. The valve 9, Fig. 3, comprises two annular flanges 28 and 29 on which are valve seats 35 and 30 respectively. A space 33 between the flanges is in communication with an air supply and also in restricted communication with a space 32 surrounding the flange 31 and a space 34 between the flange 28 and a ring 6 mounted between the cylinder 1 and a top head 4. An annular passage 37 leads from the inner edge of the seat 36 to a chamber 8 communicating with the underside of the piston. Air leaking round the small end of the piston may escape through openings 47 and passages 48 in the chuck housing 13 or through ducts in the chuck 14. Cleaning fluid may be supplied to the bit through passages 19, 20, 21 and 23.
Patent GB-451612-A (GB)
Title: Improvements in brake drums for automobiles
IPC: F16D65/10
Filed: 1935-03-13
Abstract: 451,612. Brake drums. MARTINDALE, A. F., 12, Queen's Gate Place, South Kensington, London. March 13, 1935, No. 7852. [Class 103 (i)] To exclude water from a brake drum when a car is washed by a hose the back plate d is provided with an inwardly turned flange g close against a flange g<1> on the drum and a baffle f<1> parallel to the plane in which the drum rotates and preventing water entering directly between the flanges. The baffle f<1> has a bent portion h which stops water striking the brake at an angle. This portion is arranged at the rear of a front wheel brake and the front of a rear wheel brake. On the opposite side of the brake the flange f<1> is held away from the back plate by distance-pieces h<1> so that water discharged against the rim of the brake drum will pass freely between the back plate and the flange f<1>. The flange g lies between flanges g<1>, g<2> on the brake drum.
Patent GB-325715-A (GB)
Title: A sterilizing case for clinical instruments
IPC: A61L2/26
Filed: 1929-03-11
Abstract: 325,715. Goldstein, A. A. March 11, 1929. Thermometers.-A tubular sterilizing case for clinical instruments is provided with a closure to prevent escape of liquid after withdrawal of the instrument and with a cap or cover provided with a clutch member which is adapted to grip the closure and thus prevent accidental opening of the case. The cylindrical body 1 of the case is closed at its upper end by a member 2 the lower part 3 of which is formed with converging surfaces 4 which meet at the bottom of the closure. Plates 7 are mounted on the surfaces 4 and are urged together by springs 14. The thermometer &c. 6 passes through an aperture 5 in the closure, insertion of the instrument causing the plates 7 to separate, while on withdrawal of the instrument the plates 7 close together to seal the aperture 5 and prevent escape of sterilizing liquid- The lower end of the thermometer &c. rests on a plate 16 supported by a spring 15. The cover 18 contains a slidable block 19 adapted to bear on the upper end of the closure 2, and also contains a plate 21 supporting a number of spring fingers 22 having inturned extremities 23. The cover is formed with an inner conical portion 24 into which the fingers 22 can pass. A spring 25 is disposed between the block 19 and plate 21 and a. stronger spring 26 between the plate 21 and the top of the cover. When the cover is removed from the case the fingers 22 lie in the recess 24, Fig. 2. On applying the cover the springs 15, 25 are first compressed so that the block 19 seats on the upper end of the closure 2 Continued downward pressure causes the spring 26 to be compressed so that the plate 21 passes up into the cover and the fingers 22 are drawn together so that their extremities 23 grip round a flange 17 at the upper end of the member 2, Fig. 1. The plate 21 is provided with a projection 27, Fig. 4, having a knob 28, adapted to pass into the end 32 of a tubular member 31 carried by the cover. A spring clutch 33 is urged into the part 32 by a spring 34 and is adapted to receive and grip the knob 28 when the cover is in the closed position, thereby locking the cover against disengagement from the case 1. The clutch 33 can be disengaged by lifting the stem 35 secured to it; the springs 25, 26 then force the cover outwardly and allow the fingers 22 to enter the recess 24 so that the cover can be withdrawn.
Patent GB-283018-A (GB)
Title: Improvements in or relating to engine mountings for aircraft fuselages or other skeleton structures
IPC: B64D27/04
Filed: 1927-03-22
Abstract: 283,018. Bennett, F. I. and Hawker Engineering Co., Ltd., H. G. March 22, 1927. Bedplates.-An engine mounting for the front of an aeroplane fuselage or other skeleton structure comprises a flanged plate 1 with four rearwardly divergent struts 3 having ball ends 6 adapted to be clamped in corresponding sockets on the fuselage. Alternatively the sockets may be provided on the struts 3 and the ball fittings on the fuselage. Each ball 6 has a stem detachably screwed into a nipple in the strut end, the stem being passed through a hole 14 in a triangular domed plate 12, Fig. 3, clamped by three bolts to a corresponding plate 8 which may be formed on a tubular stem sweated and bolted into a tubular longeron 16 on the fuselage. The plate 8 has a spherical seat 11 formed in a boss 10. The plate 12 may be slotted so as to slip over the stem of the ball fitting to obviate the necessity of unscrewing the ball.
Patent GB-568884-A (GB)
Title: Improvements in or relating to emulsion polymerization processes
IPC: C08F2/30
Filed: 1942-06-10
Abstract: Aqueous emulsions are made by heating under reflux in the presence of a peroxide catalyst a water-insoluble vinyl or acrylic ester, e.g. vinyl acetate and methyl acrylate, in aqueous emulsion containing a surface tension depressant and at least two hydrophilic colloids (total amount not exceeding 12 per cent by weight of the total charge), at least 0.1 per cent of each colloid being present.  The colloids may be methyl or benzyl cellulose, gums arabic, tragacanth or acacia, agar agar, gelatine, starch or partially hydrolysed polyvinyl acetate.  The surface tension depressant specified is the sodium salt of the sulphonic acid of dioctyl succinic ester. Suitable catalysts are hydrogen, acetyl and benzoyl peroxides. Polymerization accelerators such as those described in Specification 568,886 may be used.  Plasticizers and colouring agents may be added before or after emulsification. Examples describe the use of (1) methyl cellulose and gum tragacanth; (2) methyl cellulose and starch; (3) hydrolysed polyvinyl acetate of 10 per cent and 40 per cent acetate group contents; (4) hydrolysed polyvinyl acetate and gum tragacanth; (5) hydrolysed polyvinyl acetate and methyl cellulose; (7) methyl cellulose and gum arabic.  The products may be used in making films, for coating or impregnating cloth, paper and cardboard, as vehicles for pigments, e.g. carbon black, metal powders and dyes in coating compositions, as adhesives and chewing gum base. Specification 475,162 also is referred to.
Patent GB-1191814-A (GB)
Title: Rotary Piston Internal Combustion Engine of the Trochoidal Type
IPC: F02B75/02
Filed: 1969-02-14
Abstract: 1,191,814. Rotary-piston internal combustion engines. NSU MOTORENWERKE A. G. and WANKEL G.m.b.H. Feb. 14, 1969 [Feb. 27, 1968], No.8052/69. Heading F1F. A rotary-piston I. C. engine of the trochoidal n and n + 1 lobe type comprising as shown a threelobed piston planetarily rotatable within a housing having a peripheral wall 1 with a two-lobed epitrochoidal inner surface 2, an induction port 7 and an exhaust port 10 associated with a thermal reactor 12 to reduce the hydro-carbon content of the exhaust gases, includes at least two sparking- plugs and means whereby all but one of the plugs is switched off during low load and/or low speed operating ranges of the engine. As shown, two sparking-plugs 8, 9 arranged one behind the other in the direction of piston rotation D are simultaneously fired at full load and high speed operation of the engine to ensure fast burning of the charge and a good thermal efficiency. At low load and/or low speeds, when multiple ignition is ineffective to maintain exhaust gas temperatures at a sufficient level to effectively operate the thermal reactor one of the plugs, plug 8, is switched off. This may be done by a thermal-responsive switch 17 in circuit with the plugs which operates where the temperature in the exhaust falls below a certain value. Alternatively the plug may be switched on and off by a centrifugal switch in dependence on engine speed or it may be operated in dependence on induction manifold pressure or on the position of the carburetter throttle valve. The plug is positioned just beyond the minor axis of the epitrochoid or with more than two housing lobes behind the meeting point between adjacent lobes where when a piston apex passes it the pressure in the chambers on either side is substantially equal. This ensures good cold-starting of the engine.
Patent GB-717186-A (GB)
Title: Improvements in or relating to warp beaming machines
Inventor: BONSER ALFRED WALKER
IPC: D02H3/00
Filed: 1952-03-29
Abstract: 717,186. Warping yarns. FINE SPINNERS & DOUBLERS, Ltd. March 6, 1953 [March 29, 1952], No. 8064/52. Class 142(1) To, enable each section of yarn wound on a swift A<SP>1</SP> to have parallel ends at right angles to the longitudinal axis of the swift, each longitudinal bar A of the swift is provided with separator plates B between each section. The plates B are mounted on rods a and secured thereon by screws. Portions b<SP>1</SP> of the plates engage grooves a<SP>1</SP> in the top of the longitudinal bars. Wire clips C, engaging slots b<SP>2</SP> in the plates bounding the section being wound, guide the threads between the plates B.