baber/WOPTO huggingface dataset:
Patent GB-1336411-A (GB)
Title: Machine tool
IPC: G05B19/416
Filed: 1972-01-31
Abstract: 1336411 Machine tool control KEARNEY & TRECKER CORP 31 Jan 1972 [1 Feb 1971] 4344/72 Heading B3B [Also in Division G3] A machine tool having a relatively movable rotatable tool spindle and work support, e.g. a milling spindle head 10, and work support 21, 22, comprises, a feed drive means 16 connected to move the spindle; a numerical control apparatus 30 connected to regulate the position and velocity of the feed drive means including a source 34 of pulsating control signals; and overload control means e.g. a relay 70 and contacts 71, actuable by the occurrence of an overload in the spindle drive motor 20 e.g. when the cutter 66 meets a hard spot in the workpiece material, to interrupt the feed drive means 16 to relieve the said overload, and thereafter to effect the restoration of the feed drive means, and subsequent intermittent operation thereof, until the cause of the overload is passed. The interrupting relay 70 is responsive to a current rise in the electric motor 20 driving the spindle at a set speed of rotation and opens contacts 71 in the control apparatus 30. An electric motor 16 rotates a screw 13 to drive the spindle head 10 at a given speed, a feed-back transducer 24 indicating to the control apparatus the location of the said head. The source 34 is a clock oscillator which produces square wave pulses, each representing À0001 inch of travel. Both the number of pulses and their rate of delivery are controlled for position and speed control. A machining programme is set by an encoded or punched tape 31.
Patent GB-510895-A (GB)
Title: Improvements in the control of radio receivers
IPC: H03J5/14
Filed: 1938-02-11
Abstract: 510,895. Electric control systems. RADIO GRAMOPHONE DEVELOPMENT CO., Ltd., and PARKINSON, W. R. Feb. 11, 1938, No. 4356. [Class 40 (i)] [Also in Group XL] A wireless receiver having push button tuning is so arranged that operation of any one of the buttons appropriate to individual stations in any waveband operates a motor-driven, waveband switch to that waveband, while operation of any one of the buttons appropriate to the wavebands makes the waveband change without operating the tuning motor, the receiver being then manually tunable. The waveband selector disc 49 is driven by a squirrel cage motor having windings 37, 38 the voltage of which is derived from the supply 30 and phase-displaced by resistance 39. The tuning selector device comprises a number of discs 81 comprising portions 34, 35 separated by an insulating portion by means of which the motor circuit is broken when the brush 51 contacts with the insulating strip in Fig. 1. The tuning motor has windings 32, 33 connected by a phase-shifting resistance 36 and, unlike the waveband switch motor, is connected ,to be reversible. The pusb buttons each comprise two separate L-shaped contacts members, and select six stations in the medium wave band, (M1 - - - M6), and two in the longwave-band (L1, L2); the buttons S1, S2, M, L, G, control the waveband motor only and effect switching to two shortwave-bands, medium, longwave-band and gramophone reproduction. The remaining button REM is used solely for remote-control, for which remote push-buttons are connected through multi-core cable to plugs which are engaged in the sockets 126, 127. Figs. 5 and 6 show the construction of the tuning selector disc assembly, the discs 81 being mounted between friction discs so that they may be adjusted to any individual station received. The locking arm 118 is adapted to engage a stud 122 on any one of the discs. The station is then tuned in by hand and the arm 118 raised; on depressing the appropriate button the same station is now automatically tuned in. The tuning motor armature is of the kind which displaces laterally when the motor is energised; this mutes the loud speaker and l.f amplifier during tuning by switch U1 and also cuts out the A.F.C. system by switch U2 when manual tuning is employed.
Patent GB-263341-A (GB)
Title: Improvements in or relating to fountain or reservoir pens
IPC: B43K5/04
Filed: 1926-02-16
Abstract: 263,341. Livsey, W. Feb. 16, 1926. Self-filling reservoir pens. -In a collapsable-sac selffilling reservoir pen of the type in which the sac f is is deflated bv means of a spring h arranged to buckle when a knob j in the rear end of the pen-barrel is depressed, the front end of the spring rests upon a ledge d formed near the nib end in order to enable a friction-fit nibsection c to be employed without danger of its being displaced by the pressure of the spring. The nib-section is preferably provided with a bevelled shoulder to guide the lower end of the spring on to the ledge d. The knob j is normally covered by a screw cap.
Patent GB-607896-A (GB)
Title: Improvements relating to hammers
IPC: B25D1/02
Filed: 1946-02-12
Abstract: 607,896. Hammers. STEPHENS, W. R., and STEPHENS BELTING CO., Ltd., (trading as THOR HAMMER CO.). Feb. 12, 1946, No. 4369. [Class 61 (ii)] A synthetic resin, vulcanized fibre, copper, lead or other soft striking piece a is formed with or attached to a socket b for ready attachment to one end c of an ordinary hammer head d.
Patent GB-1356023-A (GB)
Title: Falammability testing of materials
IPC: G01N25/50
Filed: 1971-02-10
Abstract: 1356023 Testing fabrics C Z CARROLLPORCZYNSKI 10 May 1972 [10 Feb 1971 1 June 1971] 4372/71 and 18313/71 Heading D1S [Also in Division G1] Apparatus for determining the flammibility of a material comprises means for supporting a sample vertically for ignition at the upper end by a controlled flame and measuring (a) the minimum oxygen concentration to maintain combustion, (b) the rate of flame spread along the sample, (c) the density of smoke produced.  As shown in Figure 1, a test sample strip is supported vertically by a holder 6 in a cylinder 1 above an inner cylinder 2 containing glass beads 3 to produce diffusion of a gas fed into cylinder 2 by a pipe 5. The gas is a mixture of oxygen and nitrogen obtained from containers 9, 10 and fed through a flowmeter 13 and an oxygen analyser 16, e.g. based on the paramagnetic property of oxygen, with automatic compensation for variations in temperature and pressure. The gas is preheated by a coil 4 to a controlled temperature before reaching the test sample, which carries two vertically spaced thermocouples 7. An igniter 17 is inserted into the top of cylinder 1 and fed with butane gas at a standard flow rate to produce a standard flame length, spaced a known distance from the test sample, for a preset time interval. The oxygen concentration of the gas atmosphere in cylinder 1 is experimentally adjusted until the minimum oxygen concentration for combustion to be maintained is determined. The temperatures on the sample are recorded at 8, connected to the thermocouples 7, the time difference between the curves establishing the rate of flame spread. The smoke produced by the burning sample may be collected by a funnel 22 (Fig. 2) and fed into a closed chamber 20, where the smoke density is measured in a vertical and horizontal direction by two photoelectric devices. The chamber 20 also contains a second sample of the material 46 (Fig. 4), in a holder 30, which is subjected to heat from an electrical heater 37. The heating energy is measured by a black plate 42 whose temperature is sensed by a thermocouple 44 and used to retroactively control the heating current. The time taken for the sample to ignite, the rate of depletion of oxygen, and the concentration of smoke and toxic gases are measured.
Patent GB-123755-A (GB)
Title: Improvements in Enclosing Vessels for use in Boiling Hams.
Inventor: ADELMANN HANS
IPC: A47J27/20
Filed: 1919-02-21
Abstract: 123,755. Adelmann, H. Sept. 5, 1917, [Convention date]. Meat, dressing.-A closed receptacle in which a prepared, that is, a boned, trimmed, &c. ham is placed for cooking consists of a metallic, preferably aluminium, vessel 10, generally of cylindrical form, and provided internally with ridges 16 to give to the cooked ham the appearance of having been wrapped with a cord, and externally with racks 12. The cover 13 is telescopic and is furnished with internal strengthening sharp-edged ridges 17 and with external bosses 18 having tapped holes 18<1> therein. An upper cross-bar 19 carries at its two ends pivoted dogs 25 which engage the racks 12. It also has perforated bosses 22, with openings 23 above them. Through these openings are passed screw bolts 29, the lower ends of which engage with the internal screw-threads of the bosses 18. Between each pair of bosses is placed a spiral spring 28. In use, the prepared ham is placed in the receptacle, the cover put on, and the cross-bar forced down until the cover is sufficiently depressed on to the meat, when it is held in this position by the engagement of the dogs and the racks. The springs allow the cover to rise as the ham swells during cooking, the strength of the springs being pre-adjusted by the screws 29.
Patent GB-544275-A (GB)
Title: Improved process for the manufacture of castings of artificial stone such as concrete
IPC: B28B1/087
Filed: 1940-03-08
Abstract: 544,275. Moulding concrete &c. by shaking- machines. STEENSEN, N. March 8, 1940, No. 4397. Drawings to Specification. [Class 87 (ii)] [Also in Group X] The concrete is poured into a vibrating mould which, during the gradual progress of the pouring operation, is withdrawn upwardly whilst being vibrated, the speed of withdrawal being such that the concrete will be able to support itself in the unset condition after it has been uncovered by the upward movement of the mould. The supply of concrete and the movement of the mould mav be continuous or intermittent. The speed of withdrawal may be 3 feet per minute. Columns, walls, and telegraph poles may thus be made ; they may be cast in situ. By using a core, hollow castings may be made. Reinforcing rods may be incorporated in the concrete.
Patent GB-1216200-A (GB)
Title: Multi-stage solid fuel rocket
IPC: F42B10/12
Filed: 1968-01-29
Abstract: 1,216,200. Multi-stage rockets. MESSERSCHMITT-BOLKOW-BLOHM G.m.b.H. 29 Jan., 1968 [18 Feb., 1967], No. 4446/68. Heading F3A. A multi-stage solid fuel rocket for firing by means of a supplementary propulsive charge from a tube closed at one end, comprises an annular propellant 6 in a housing 1, and a propellant 16 in a housing 7, the outer surface of which housing is initially in face-to-face relationship with the interior surface of the propellant 6, whereby, disintegration of the propellant owing to acceleration forces is prevented by interaction of the rocket stages, the housing 7 being movable forwards in the housing 1 to an extended position in which it is still connected to the housing 1. The housings are connected together in the extended position by pins 11 engaging in bores 9, but can be separated when the propellant 6 is exhausted by mechanical or pyrotechnic means. The housing 7 is moved forwards relative to the housing 1 by igniting the longer-burning propellant 16 first, the flames from which ignite the thereby exposed propellant 6 after a delay caused by a combustion inhibitor. Alternatively, the nozzles 2 and 8 are closed with discs 19 and 18 and the housings displaced by firing a charge 20. A braking surface 13 also aerodynamically retards the housing 1. Fins 3 extend on leaving the launching tube.
Patent GB-1037432-A (GB)
Title: Herbicidal compositions
Inventor: HAWKINS STANLEY WALLACE
IPC: A01N59/00
Filed: 1963-02-04
Abstract: A herbicidal composition comprises a mixture of an ionic nitrite, or a substance readily hydrolysed to an ionic nitrite, and sodium chlorate.  The composition may be in the form of a solid, e.g. powder, pellets or granules, or a liquid e.g. solutions, suspensions or dispersions.  The composition may also contain other herbicides, e.g. phenoxy-substituted aliphatic monocarboxylic acids containing chlorine atoms and methyl groups in the benzene ring.  Fungicides such as dithiocarbonates and organo-mercury compounds may also be present, as well as insecticides such as organo phosphorus compounds and chlorinated hydrocarbons.
Patent GB-547533-A (GB)
Title: Improvements in or relating to electrical measuring instruments
IPC: G01R11/56
Filed: 1941-04-04
Abstract: 547,533. Target. PARKER-HALE, Ltd., and HALE, A. T. C. May 7, 1941, No. 5911. [Class 20 (i)] [Also in Group XV] A target comprises a hollow member 10 with depending front portions 11, 14, a bracket member 15 with outstanding lugs 16, secured to one of the front portions of the hollow member, and a heavy bar 20 adapted to press the edge of the target card 13 against the front portion 11. The bar 20 may be supported and guided in inclined slots 19 in the outstanding lugs or may be carried by arms pivoted on the front of the hollow member and inclined inwardly to fall against the target card.
Patent GB-1141091-A (GB)
Title: Crossbar switch
Inventor: KELLER ARTHUR CHARLES
IPC: H01H67/26
Filed: 1966-02-02
Abstract: 1,141,091. Electric selectors. WESTERN ELECTRIC CO. Inc. 2 Feb., 1966 [5 Feb., 1965], No. 4538/66. Heading H1L. In a cross-bar switch where a crosspoint contact set is operated in response to first the selection of a free-ended flexible operating finger by a select bar and then the movement of the selected finger by a hold bar, the free end of the finger is biased, by kinking the finger, against a side of a containing slot in the hold bar to prevent the free end from vibrating. In Fig. 4 upward movement of a select bar 111 moves an operating finger 70 to a position opposite a tongue 95 on a contact operating member 60 whose arms 93 and 94 bear against contact card 51. Subsequent rightward movement of the hold bar 114 in moving the finger against tongues 95 moves the card 51 against biasing springs 85, 86 to close the contact set. The select bar may then be released. The finger 20 is biased against the left-hand side and bottom of the slot in the hold bar 114 to prevent it from vibrating. The select bar and hold bar operating magnets can then be energized simultaneously, although it is arranged that the selecting operation is made before the holding operation begins. A coating of polytetrafluoroethylene on the end of the finger avoids it sticking in the slot. A number of contact sets are mounted upon a vertical support 40 and a number of such assemblies combined to form the crossbar switch.
Patent GB-944044-A (GB)
Title: Improvements relating to dynamo-electric machines
Inventor: ASHWORTH ARTHUR FREDERIC MARTI
IPC: H02K3/487
Filed: 1961-02-07
Abstract: 944,044. Dynamo-electric machines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 11, 1962 [Feb. 7, 1961], No. 4559/61. Drawings to Specification. Heading H2A. A method for reducing the air gap between rotor and stator of a flameproof machine to prevent " pressure piling " comprises applying to the periphery of the rotor or stator one or more bands of non-magnetic preferably insulating material, and filling the slot openings with an insulating material. As described, bands of polyester varnished glass tape are wound round the periphery of the rotor and the slots are filled with strips of insulating material, which may be wedge-shaped. The bands of insulating material may alternatively be applied to the inner peripheral surface of the stator in the form of one or more tight sleeves.
Patent GB-680517-A (GB)
Title: Insecticidal compositions comprising hexachlorocyclohexane and a resin
IPC: A01N/
Filed: 1951-02-26
Abstract: An insecticidal composition comprises an organic solvent in which is dissolved hexachlorocyclohexane containing at least 50 per cent and preferably at least 15 per cent by weight of the gamma isomer and a resinous synergist therefor which itself has no insecticidal properties, in an amount less than 30 per cent by weight of the gamma isomer.  The resinous synergists which preferably constitute 5-25 per cent by weight of the gamma isomer are coumarone, coumarone styrene and coumarone indene resins; natural resins, and synthetic resins such as (a) phenolformaldehyde resins modified by treatment with natural resins, drying oils or alkyl resins, (b) maleic acid resins obtained from the reaction between maleic acid or its anhydride with hydrocarbons, natural resins, resin acids, fatty oils and fatty acids, (c) pentaerythritol resins obtained by condensation of pentaerythritol with polycarboxylic acids, and (d) pentaerythritol resin esters.  The solvents employed, which preferably have a boiling point in the range of 100-350 DEG  C. may be kerosene, gas oil fractions, tetrahydronaphthalene, decahydronaphthalene, xylene, edeleanu extracts and liquid hydrocarbon derivatives.  The hexachlorocyclohexane may be pretreated to improve its odour and other insecticides such as alkyl thiocyanate, toxaphene, chlordane, pyrethrum or rotenone may be added to the solution.  Perfumes, solutisers and emulsifying agents may also be present.
Patent GB-275499-A (GB)
Title: Improvements in drum and cymbal beaters
IPC: G10D13/00
Filed: 1927-02-19
Abstract: 275,499. Tinton, T. H. Feb. 19, 1927. Drums; cymbals.-An apparatus for beating a drum and pair of cymbals simultaneously or separately comprises a pedal A hinged at a and pressing on a horizontal bar C movable vertically in two guides D against the action of springs E. The bar C at one end overlies a pivoted arm F connected to the drum beater, and at the other end overlies a lever G connected by a link I to the cymbal-beater J. The pedal A and bar C may be moved horizontally about a pin B to remove the bar from action on either the arm F or the lever G.
Patent GB-114463-A (GB)
Title: A Method and Machine for Manufacturing Mouthpieces for Cigarette Casings.
IPC: A24D3/00
Filed: 1917-03-31
Abstract: 114,463. Marks, E. C. R., (Aktiebolaget Svenska Tobaksmonopolet). March 31, 1917. Paper tubes.-In making cigarette mouthpieces, a continuously-fed strip is cut into pairs of blanks by alternate transverse and oblique cuts so that the leading ends of the blanks are alternately square and pointed. The first blank is fed past the upper of two mandrels on to a table which is then rotated 180 degrees about an axis parallel to the direction of feed so as to 'bring the blank to a lower level. The blank is then fed backwards (i.e. point first) to the lower mandrel. The second blank is meanwhile fed direct, point first, to the upper mandrel. The mouthpieces are then rolled simultaneously, and doffed into position in the ends of previously prepared cigarette tubes. The inner layers of the mouthpieces are then displaced axially by pushers to form a recess into which the tobacco enters to strengthen the junction between cigarette and mouthpiece. The strip 1 is drawn through feed rolls 3, 4 on to an oscillating table 17 and is severed by transverse blades (not shown) and oblique blades 15. One blank is fed on to a rotatable table 25, temporarily locked in its horizontal positions, which is then rotated to bring the blank below the table, to which the blank adheres sufficiently long to enable a mutilated feed-roller 44 to engage it and feed it backwards to the mandrel 47<a>. The table 17 is lowered by cam and lever mechanism to feed the other blank to the mandrel 47. The mandrels are slotted and surrounded by sleeves 48. The finished mouthpleces are doffed into cigarette tubes supplied from the machine (not shown) in which they are made, to corrugations in the rim of a wheel 57.
Patent GB-180003-A (GB)
Title: Improvements in gas burners for heating, cooking and other purposes
IPC: F23D14/04
Filed: 1921-02-10
Abstract: 180,003. Shand, W. L., and Shand, A. M. Feb. 10, 1921. Atmospheric gas burners.- In a gas burner for cooking &c. the upper surface is made concave and is provided with concentric rows of projecting nipples 18, having gas outlets 19 all arranged vertically with the exception of those surrounding the central air passageway 14, which are inclined inwardly. The combined pre-heating and mixing chamber 3 for the gas and air is constructed in two parts 4, 5 between which wire gauze 20 is interposed. The lower part of the chamber is bored and screw-threaded at 6 to receive a sleeve 7, to which is attached a mixing-tube 8.
Patent GB-760413-A (GB)
Title: Improvements in the heat treatment of metal catalysts
IPC: B01J23/42
Filed: 1954-02-18
Abstract: <PICT:0760413/III/1> A method of producing a mono-crystalline structure in a substantially two dimensional catalyst, e.g. metallic netting, comprises heating the catalyst by pasing an electric current therethrough while protecting it from heat losses, the catalyst being located between insulating masses adjacent to, but not in contact with, its surfaces.  As shown, a catalyst 1, consisting of a platinum or platinum alloy netting, moves over rollers 6, which may be driven at the same speed or at slightly differing speeds to stretch the netting, and a pair of insulating masses 2, 3 is situated with one mass on either side of the netting between the rollers.  Electric current is supplied through the rollers and the netting heated to a temperature high enough to produce the required conversion.  In a modification, Fig. 2 (not shown), two pairs of rollers may be used, one pair at either end of the heating zone.  Both sets of rollers may be cooled, e.g. by water circulating internally, or only those on the outlet side of the heated area.  In a further modification, Fig. 3 (not shown), the insulating masses may be in the form of parabolas having the inner surfaces treated to form mirrors.  The insulating masses may be formed of heat resistant metal oxides or flocculent asbestos. Reference is made to the use of the platinum or platinum alloy (e.g. platinum-rhodium) catalysts in the oxidation of ammonia to nitric acid.  Specification 703,460 is referred to.
Patent GB-448723-A (GB)
Title: Improvements in weaving loom heddles
IPC: D03C9/02
Filed: 1935-02-15
Abstract: 448,723. Loom healds. COMPTOIR D'APPAREILS TEXTILES SOC. AR.L., 26, Rue de Vieux, Thann, Mulhouse, Haut-Rhin, France. Feb. 15, 1935, No. 4846. Convention date, Feb. 15, 1934. [Class 142 (i)] A substantially rectangular mail eye a is formed in a metal strip heddle by slitting the strip and pressing the metal at the sides in opposite directions, the pressing beginning above and below the eye proper. The sides 1, 2 of the eye are parallel with the plane of the heddle, and the eye has plane surface upper and lower contact faces b for the thread &c. The eye may be stamped out at one operation, from a wide band of metal, or a narrow band may be first slit and then pressed at c, Fig. 3.
Patent GB-634078-A (GB)
Title: Improvements in and in the manufacture of commutators for dynamo electric machines
IPC: H01R43/08
Filed: 1946-02-15
Abstract: 634,078. Commutators for dynamo - electric machines. PHOENIX TELEPHONE & ELECTRIC WORKS, Ltd., HODDER, H., and SMITH, A. H. Feb. 15, 1946, No. 4848. [Class 35] The segments of a moulded commutator are formed by closely folding sections of strip about their middleline, the fold being embedded in the plastic. The strip is formed with sharp troughs 2 and rounded peaks 3, and dovetail or similarly-shaped openings 4 are punched along its centre or edges. As shown in Fig. 7, the corrugated strip may be pressed further to reduce the outer surface 5 of the troughs 2. The troughs and peaks are then pinched so as to close the troughs but leave slots 6 in the peaks, and bent to circular form as shown in Fig. 10 and moulded, preferably by injection. The segments are separated by turning off the tops of the peaks, slits 10, widened by slotting, if desired, serving to receive the conductors in risers 8 which, as shown in Fig. 13, are left standing higher than the body of the commutator.