baber/WOPTO huggingface dataset:
Patent GB-737813-A (GB)
Title: Improvements in or relating to wire-man's tools
Inventor: EARL THOMAS
IPC: H02G1/04
Filed: 1953-03-11
Abstract: 737,813. Clamp fastenings. BOWDEN REPAIRS, Ltd. Dec. 18, 1953 [March 11, 1953], No. 6750/53. Class 44. [Also in Groups XXIII and XXXVI] A tool for use when erecting electric power lines comprises a clamp formed of two separable parts adapted to be clamped about an insulator and provided with two wire support means for supporting between them a length of wire in a position above the intended position of attachment of the wire of the insulator. As shown the two half clamp elements 1, 2 are provided with grooved wire supporting rollers 6, 7 and are connected by swivel screw pins 8, 9, the half clamp 2 being slotted at 13 to receive the pin 9 and having a hole 12 to receive the pin 8. The hole 12 is slightly bevelled at 14 to allow the half clamps, when not tight up around the insulator, to diverge from the plane in which they lie when drawn tight. On slacking back the nuts 15, 16, the downward force of the wire causes the rollers to drop sufficiently to allow the swivel pin 9 to be swung out of the slot 13 and the clamp removed. In a modification for use with a mushroom type insulator, the guide rollers are journalled to rotate about axes at an angle to the axis of the insulator on lugs which are off-set in relation to the axis of the clamp. In another modification for use with pedestal type insulators the clamp has upstanding arms on which the rollers are fitted.
Patent GB-563452-A (GB)
Title: Improvements in and relating to electric apparatus and windings therefor
IPC: H01F27/30
Filed: 1943-04-29
Abstract: 563,452. Transformers. B R I T I S H THOMSON-HOUSTON CO., Ltd. April 29, 1943, No. 6761. Convention date, May 5, 1942. [Class 38 (ii)] A winding for a transformer or other apparatus comprises a plurality of axiallydisposed disc coils such as 17, 20, alternate coils being wound on channel collars such as 23, 30 and the intermediate coils such as 20 being arranged between the collars. The winding is continuous and enters at 18 through a slot into a collar 17, within the channel of which it is wound from the inside out the outermost turn then proceeding at 19 to the outer turn of an intermediate coil 20, the inner turn of which then proceeds at 21 through a slot 28 into the next collar. The intermediate coil may first be wound from the inside out and its turns then shuffled so that they lead from the outside in. Where there are two or more such windings arranged concentrically, they may be separated by a series of insulating spacers such as shown in Fig. 5, each comprising a column 35 and a laminated portion 36 with grooves 37 to receive the rims of the collars 23, 30. A fluid passage is left between the spacers.
Patent GB-139813-A (GB)
Title: An improved device for tilling apparatus, to effect automatic lifting as well as adjustment in side direction and inclination
IPC: A01B63/06
Filed: 1920-03-05
Abstract: 139,813. Chapron, B. A. J. Dec. 26, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Controlling by contact with obstructions. - Ploughs and other tilling-implements are provided with special means for braking the tractor or disconnecting its driving gear when the implement engages an obstruction. The apparatus comprises a coupling and lifting lever 15 pivoted on the tractor a and having a ball-shaped end 16 fitting into a cup 75 on the front part 13 of the implement. Part of the cup 75 consists of a spring-controlled piston 76 which yields and allows movement of the tractor relatively to the implement when the latter meets an obstruction. A lug 79 is connected by a rod 80 with the operating-lever of the tractor brake, so that the relative movement operates the brake.
Patent GB-845936-A (GB)
Title: Improvements in or relating to apparatus for applying coatings to surfaces of articles
IPC: B05B14/00
Filed: 1958-03-03
Abstract: <FORM:0845936/III/1> An apparatus for applying a coating of flowable material to articles, comprises a support for the articles, a metering feed roller having a number of uniformly distributed isolated pockets of predetermined capacity in its surface, and arranged with its axis of rotation parallel to the surface of the support, means for rotating the roller and for effecting relative movement between the roller and support along the support and in a direction substantially at right angles to the said axis of rotation, a horizontal feed hopper of which the roller forms a wall and which has an extension of its underside disposed close to the surface of the roller so as to confine the flowable substance to the pockets therein, while leaving the surface between the pockets free of the said substance, and means beyond the said extension for removing the substance from the pockets and projecting it on to the articles on the support.  As shown, sheets 51 are conveyed through the apparatus by a belt 12, which, in part of its return course, dips into cleaning liquid in a tank 16, and is wiped by a rotary brush 17 and squeeze roller 22.  The sheets 51 pass beneath a coating-apparatus comprising a metering roller 34 having longitudinal peripheral grooves 37 and rotating in coating liquid held between a thin steel sheet lining a housing 43, and pressed against the roller 34 by an inflatable bag 40, and two side-plates 31.  The roller 34 is driven from a motor 50 through a variable gear-box 4, and its speed is indicated by a tachometer 91.  The liquid is wiped from the roller 34 by a rotary brush 47, and projected towards the sheets 51 as the bristles pass over a blade 52.  A brush 72 is secured under the blade 52 to prevent drips falling therefrom.  Any coating remaining on the roller 34 is removed by an air blast issuing from an adjustable nozzle 57.  The coating liquid is circulated to the coating device from a tank 24, provided with a stirrer 27, through pipes 69, 29 and 71, by a pump 28.  The globules of coating material, after deposition, may be subjected to a smoothing action by a brush 63 mounted to move bodily in a circle about an upright axis.
Patent GB-687235-A (GB)
Title: Improvements in and relating to the treatment of paraffin wax
IPC: C10G73/36
Filed: 1951-03-22
Abstract: In sweating paraffin wax, the heating of the wax is effected wholly or in part by passing warm gas through it.  The warm gas is generally warm air, but warm gaseous hydrocarbons may also be used.  The wax may be made permeable to gas by melting it and pouring it into trays in the normal way and then cooling slowly at first until crystallization is just finished and then more rapidly, when many minute cracks occur in the crystalline mass. If the cake is impermeable to gas at the start of the sweating process, it may be heated by conventional methods until the oil begins to flow out from the cake, whereafter the warm gas may be passed through the capillaries left by the oil.  If during the process the cake closes up it may again be heated in the conventional manner.  During the process, the temperature of the gas is preferably slowly raised either continuously or stepwise. It is also desirable to regulate the difference in pressure between the gas on opposite sides of the cake. This pressure difference is preferably great when sweating begins e.g. 15-20 cm. Hg, but when nearly all the oily components have been separated and the paraffins have passed largely into the crystalline form stable at high temperatures, the pressure difference is preferably reduced e.g. to 3-6 cm. Hg in order to prevent the cake closing up.  Exampes are given and a suitable apparatus is described.
Patent GB-413064-A (GB)
Title: Improvements relating to fixing flux to solder wire
IPC: B23K35/14
Filed: 1933-03-07
Abstract: 413,064. Solder wire. ROSE, F. J. P., 33, New Broadway, Ealing, London. March 7, 1933, No. 6875. [Class 83 (iv).] A solder wire or rod is provided with one or more undercut helical grooves containing flux. The solder wire is first formed with an undercut longitudinal groove, which is then filled with flux and partially closed and the wire then twisted to obtain the helical formation and assist in closing the groove.
Patent GB-731202-A (GB)
Title: Improvements in or relating to automatic frequency-control circuits
IPC: H03L7/14
Filed: 1953-03-13
Abstract: 731,202. Automatic frequency and phase-control systems. PHILIPS ELECTRICA INDUSTRIES, Ltd. March 13 1953 [March 18, 1952], No. 6983/53. Class 38 (4). Relates to circuits for automatic frequency correction of an oscillator 1, Fig. 1, in which a discriminator 3 fed by the oscillator and by a reference voltage 2 provides an output voltage which is smoothed at 4 to provide a control voltage across a condenser at 4<SP>1</SP>, a switch 7 being provided to isolate the condenser 4<SP>1</SP> when required. The invention consists in applying the control voltage to the control grid of a tube 5 which by its construction and/or its operating voltages functions like an electrometer with grid current not greater than one ten-millionth of an ampere, thereby enabling the oscillator 1 to maintain constant frequency and phase for some considerable time after the disconnection at 7 of the automatic control. As shown in Fig. 1, the tube 5 operates as an amplifier of the control voltage, preceding a reactance tube circuit 6 associated with the oscillator 1. In Fig. 2, the oscillator comprises a cross-coupled pair of pentode tubes 8, 9 which are synchronized with the A.C. mains voltage supplied to the terminal 30. The oscillator output is amplified and reversed in phase by a tube 29 and is fed to a control grid of a phase-comparing tube 31, another control grid being fed from the terminal 30. When both inputs are positive, the tube 31 conducts, and pulses varying in width with the phase displacement are fed through a rectifying circuit 35; 36 and smoothing network 37 to charge a condenser 45. The voltage on this condenser is fed through a resistor 46 to the grid of an electrometer tube 47 which operates as a variable resistor, connected across a frequency-determining network 23 ... 25 in one of the cross couplings of the tube pair 8, 9. The oscillator frequency thus maintained in agreement with that of the mains supply. In the event of a disturbance in the mains, such as a short-circuit, a switch 50 is opened by a relay 51 to disconnect the automatic control, and the oscillator continues to operate for some time at the frequency and phase at which it was working when the disturbance occurred. The output of the phase-comparer 31 is during this period fed to an amplifier 59 and indicator 60 enabling the phase variations to be followed and read by an observer. The tube 47 may be of the kind designed to operate as an electrometer, or a radio-receiver tube may be used with greatly reduced supply voltages and filament current.
Patent GB-213562-A (GB)
Title: Improvements in oscillation generators and modulators
IPC: H03C1/00
Filed: 1924-03-19
Abstract: 213,562. Western Electric Co., Ltd., (Assignees of Nichols, H. W.). March 31, 1923, [Convention date]. Thermionic generators; modulating systems.- A thermionic power amplifier is normally paralyzed by an applied grid bias which is periodically overcome by very sharply-defined voltage impulses derived from the output circuit of a cross-coupled control valve, with the object of ensuring a high efficiency in operation. As shown in Fig. 1, the output circuit 8, 9 of the power amplifier 1 is coupled both to a load circuit 19, 20 and to a coil 15 in the input circuit of the control valve 11. The corresponding voltage variations on the grid of the latter valve are shown at e1, Fig. 2, the distance e3 representing the negative bias from the cell 14. A pulse of current IB1 accordingly flows through the plate coil 17, giving rise in turn to a sharply-denned voltage-variation on the grid of the amplifier 1, as indicated by the curve e2 in Fig. 3. This is sufficient to remove the prohibitive bias from the cell e4, and to energize the output circuit 8, 9 by an impulse of the form shown at IB2, Fig. 3. The output energy may be modulated by a microphone 38 acting on the input circuit of a third valve 37 the output of which contains the coil 17 linked to the input coil 5 of the power valve. The grid-biasing cells may be replaced by a condenser and leak, and the output circuit 8, 9 may be replaced by an aperiodic coil coupled to a tuned circuit comprising a variable resistance.
Patent GB-1012623-A (GB)
Title: 1-chloro-n-sulphonyl-formamidines and process for their manufacture
IPC: C07C311/54
Filed: 1963-02-21
Abstract: The invention comprises 1 - chloro - N-sulphonyl-formamidines of the formula <FORM:1012623/C2/1> wherein R is an aliphatic or cycloaliphatic hydrocarbon radical or an aromatic hydrocarbon radical, optionally bearing 1 or 2 substituents selected from halogen atoms, alkyl, alkoxy or acyl groups or groups convertible into amino by reduction or hydrolysis, a phenoxyphenyl or a phenylalkyl radical and R1 represents a saturated or unsaturated aliphatic or cycloaliphatic hydrocarbon radical, which may be interrupted by oxygen, or a phenylalkyl radical; and the process for their preparation by reacting a sulphonyl thiourea of the formula R.SO2.NH.CS.NH.R1 with phosgene or a compound that splits off phosgene, e.g. chloroformic acid trichloromethyl ester. The compounds of the invention may be reacted with sodium hydroxide, methanol, ammonia or sodium acetate to give the corresponding sulphonyl urea, sulphonyl-isourea methyl ether, sulphonyl-guanidine or O-acetyl-sulphonyl-isourea, respectively.  Pharmaceutical preparations having hypoglycermic activity, for oral treatment of diabetes comprise the above compounds of the invention in admixture or conjunction with a carrier, suitably in the form of tablets. Specification 885,468 is referred to.
Patent GB-124618-A (GB)
Title: Improvements in or relating to Electro-magnetic Brakes, Clutches, Ratchets and the like.
Inventor: VILLIERS EDWARD CECIL
IPC: F16D27/06
Filed: 1918-04-29
Abstract: 124,618. Villiers, E. C. April 29, 1918. Electric and magnetic. - Magnets for electromagnetic brakes, clutches, or ratchets have the armature and the adjacent part of the casing laminated transversely to the field to secure an instantaneous release when the current is stopped. A clutch or ratchet for use particularly in the odograph described in Specification 26726/12, [Class 97 (ii), Surveying &c. instruments], is described and comprises the magnet casing 2 which is given an oscillatory rotary motion and is adapted to be clutched to the armature 8 during movement in one direction in order to impart a step-by-step motion to the shaft 3 to which the armature is coupled by pins 13 passing freely through holes in a bridge-piece 11 secured to the shaft. The laminations for the casing may comprise superposed soft-iron rings 7 soldered to the edge thereof. The armature consists of soft-iron disks 8, 8<a>, 8<b> preferably of varying diameter and having V- shaped gaps cut in the outer part.
Patent GB-1511651-A (GB)
Title: Manufacture of expanded cellular products
IPC: B29C44/32
Filed: 1975-04-18
Abstract: 1511651 Conveyer for continuous foam casting apparatus CALIGEN FOAM Ltd 18 April 1975 [16 Feb 1974] 7170/74 Heading B8A [Also in Division B5] Apparatus for continuously casting a foam slab, e.g. polyurethane with a base having a semi-circular cross-section comprises side-walls 5A, 5B, arcuate corner supports 6A, 6B, a conveyer 7 and a flexible belt 10 supported on the conveyer 7 for movement therewith and extending over the upper arcuate surfaces of the comer supports 6A, 6B. The belt 10 may comprise upper and lower sections 11, 12 which are accommodated in upper and lower recesses 13A-14B in the supports 6A, 6B so that the upper and lower surfaces of the belt 10 lie flush with those of the supports 6A, 6B. Formers 15A, 15B for shaping the upper surface of the foam slab may be provided. The side walls 5A, 5B may be adjustable. The foam is cast into a paper liner carried by the belt 10. The latter is also passed through a tensioning device (16, Fig. 2, not shown).
Patent GB-476144-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J19/00
Filed: 1937-03-11
Abstract: 476,144. Thermionic valves. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. March 11, 1937, No. 7192. Convention date, March 13, 1936. [Class 39 (i)] In order to increase the straight portion of the characteristic curve of a valve the cathode and grid are so formed that the mutual conductance is constant along the length of the grid, but the grid is nearer to the cathode in some places than others, the cathode being saturated, at least in part, within the working range of the valve, or an equivalent effect being produced by means of a space-charge grid. In the form shown in Fig. 2, the grid 2 is of uniform diameter and the cathode 1 tapers as shown, the pitch of the grid being varied to give uniform conductance. In a modification the cathode and anode are cylindrical and the grid tapers, Fig. 6a shows an arrangement in which the cathode 1 tapers and is surrounded by a space-charge grid 4 at a uniform distance from it which produces an effect equivalent to saturation.
Patent GB-382522-A (GB)
Title: Improvements in or relating to motor vehicle lights
IPC: B60Q1/124
Filed: 1932-03-10
Abstract: 382,522. Systems of lighting for road vehicles. DESPATURES, C. F., 106, Chaussee de Douai, Tournai, Belgium. March 10, 1932, No. 7231. Convention date, Dec. 9, 1931. [Classes 75 (iii) and 75 (iv).] Vehicle lamps, directing.-In an anti dazzle system of lighting for road vehicles, both head lamps are adapted to be rotated towards the off-side when required, the off-side lamp through about 180‹ and the near-side lamp through about 90‹. The lamps are arranged to rotate at such speeds that beams of light are projected successively on those portions of the road about to be traversed by an on-coming vehicle, without being overtaken by such vehicle, the off-side lamp finally illuminating the off-side coachwork of its own vehicle to facilitate passing. The lamps may be rotated by small electric motors, Bowden wire, or compressed air. In the form shown, the lamp 14 is mounted on an axle 15 rotatably mounted on a pivot 12 and in a bearing 13 in a hollow cylinder 11 adapted to receive compressed air for rotating the lamp against the action of an adjustable return spring 16. A stationary partition 23 with packing 24 is fixed airtight between the axle 15 and the cylinder 11, whilst a vane 25 with packing 26 is fixed to the axle 15 and is adapted to be rotated by compressed air supplied to a pipe 20 from a source such as a pump or reservoir under the control of an adjustable three-way valve. The cylinders 11 of the near-side and off-side lamps are provided with vane stops arranged respectively at 90‹ and 180‹ from the partition 23. Means may be provided, such as a straight shaft K1 or a cranked shaft K2 inclined at an angle x to the vertical K in a plane perpendicular to the longitudinal axis of the vehicle, to ensure that the beams of light do not project beyond the off-side edge of the road.
Patent GB-1393002-A (GB)
Title: Polymerisation of omega-lactams
IPC: C07D209/86
Filed: 1972-02-16
Abstract: 1393002 Quaternary ammonium salts of lactams AGENCE NATIONALE DE VALORIZATION DE LA RECHERCHE 16 Feb 1972 7236/72 Heading C2C [Also in Division C3] Quaternary ammonium salts of organic compounds having one or more H atoms of acidic nature and a pKa of 14 to 30 (useful as catalysts for the anionic polymerization of lactams; see Division C3) are prepared by reacting such compounds with a quaternary ammonium alkoxide in an inert organic solvent and separated as the crystalline salt. Specified such compounds are lactams, e.g. alpha pyrrolidone or piperidone or caprolactam, imides and other compounds with active methylene or NH groups, e.g. succinimide, phthalimide, fluorene, malonic esters or carbazole. The alkoxides may be a tetraalkyl-, trialkylaryl or trialkylaralkylammonium methanolate, ethanolate, propylate, butanolate or t-butanolate. Specific examples describe the preparation of tetra-methyl-, -ethyl- and -butyl-, phenyl-trimethyl- and benzyltriethyl-ammonium salts of pyrrolidone, piperidone and caprolactam and of carbazyltetramethyl-ammonium.
Patent GB-249525-A (GB)
Title: Improvements in or relating to valve arrangements for multiple compressed-air presses or the like
IPC: A43D25/06
Filed: 1926-03-16
Abstract: 249,525. Atlaswerke P÷hler & Co. March 17, 1925, [Convention date]. Fluid - pressure presses.-Relates to means for discharging and charging the compressed-air containers of multiple presses for solelaying, and like apparatus. A number of presses each comprising a compressed-air bag 14 are mounted, as usual, on a rotary table 1. Each bag 14 communicates with a valve casing 2 having an opening normally closed by a valve 3. A similar casing 5 is provided at the operator's position, provided with an opening normally closed by a valve 8 supported by a strong spring 10. The casing 5 is mounted on a treadle controlled rod 11 and is supplied with compressed air by a flexible pipe. Partial depression of the treadle 15 raises the casing 5, whereon the valve 8 opens the valve 3 of the press which is then opposite the operator. Further depression of the treadle opens the valve 8 recharging the press, a rubber washer 9 making an airtight joint between the two valve casings. The valve 3 is guided by a cylinder 16 formed with vertical peripheral grooves. The treadle may be held in mid position when desired by a spring plunger engaging a notch in the rod 11.
Patent GB-557815-A (GB)
Title: Improvements in and connected with valves of and for internal combustion engines
IPC: F01L5/04
Filed: 1942-05-30
Abstract: 557,815. Valves and valve gear. SMITH, W. May 30, 1942, Nos. 7349/42 and 625/43. [Class 7 (vi)] [Also in Group XXVI] The inlet or exhaust lift valve 1 is formed with its stem 3 on the side remote from the port 6 controlled thereby, so as to provide an unobstructed port 6 and passage 5 when the valve is open, the valve being seated and carried in the detachable cylinder head 12. The closing- springs 10 bear against a detachable cap 11 giving access to the valve. The stem 3 is preferably a continuation of the head of the valve, and is provided with grooves or packing-rings 14. The valve may be actuated by a cam 9 and rocker 8, or may be formed at the end remote from the port 6 with an enlarged piston operated hydraulically in a chamber formed in the cylinder head. The columns of liquid leading to the several valves of an engine may be actuated by a rotating cam 21, Fig. 3, engaging sliding vanes 22, so that liquid trapped between the cam and each vane is forced into the corresponding passage 25 connected to the appropriate valve. The closing of the valves is facilitated by a spill action caused by a rebate 27 in the cam, and the timing may be varied by angular adjustment of a ring 28 formed with by-pass grooves 29. In a modification, the cam 21 actuates radial plungers in line with the passages 25. Specification 503,577 is referred to.