baber/WOPTO huggingface dataset:
Patent GB-1329407-A (GB)
Title: Pulse generator circuit
IPC: G01N27/66
Filed: 1972-03-14
Abstract: 1329407 Gas detectors ANALOG TECHNOLOGY CORP 14 March 1972 [15 March 1971] 11886/72 Heading G1N An electron-capture detector output signal representing the concentration of electroncapturing compound in a sample, is applied to an electrometer amplifier 14, whose output is compared at 20 with a ramp voltage from a generator 26, a pulse generator 28 providing a pulse each time the ramp magnitude and the electrometer output signal magnitude are equal, the pulses from the generator 28 being applied to reset the generator 26 and to clear the detector 12, and their frequency being proportional to the electron-capturing compound concentration. As shown, the pulse generator output is applied to a frequency-to-voltage converter 30 to provide an analogue output and to an attenuator 36 to provide a digital output. The ramp generator includes a resettable oscillator including a charging capacitor, a current source and a resetting switch. Fig.2 (not shown) gives details of circuits, 20, 26, 28, 30, 32 and 36. In use, the apparatus is first calibrated for zero by connecting the switch 22 to a reference voltage source 24 whilst adjusting the ramp generator. The switch is then placed in the operate position and the baseline adjustment 18 is varied while pure carrier gas is passed through the detector.
Patent GB-694826-A (GB)
Title: Improvements in or relating to a flint-wheel protector for portable lighters
IPC: F23Q2/40
Filed: 1951-05-22
Abstract: 694,826. Frictional igniters. ZIPPO MANUFACTURING CO. May 22, 1951 [June 16, 1950], No. 11918/51. Class 75(iii) In an igniter body 12 having a flint-wheel 16 mounted adjacent a wick 21 and a windscreen 17 surrounding the wick and one side of the flint-wheel, a flint-wheel protector 22 is provided between the wick and the wheel, separate from and disposed entirely within the windscreen, the protector having an aperture 25 for the passage of sparks. As shown the protector 22, which is higher and wider than the wheel, is curved to confrom with the wheel contour and is arranged within a windscreen 17 to extend across the width thereof. The body 12 is housed within a casing 10 having a hinged lid 11 which is held in open or closed position by a cam lever 18 mounted at one end of the windscreen 17. The lever 18 cooperates with a shaped leaf spring 19, which, together with the protector 22, is secured to the body 12 by a hollow, wickcarrying rivet 20.
Patent GB-1260712-A (GB)
Title: Ultrasonic pulse-echo apparatus
IPC: G01N29/11
Filed: 1969-03-06
Abstract: 1,260,712. Ultrasonic inspection devices; automatic gain control. BRANSON INSTRUMENTS Inc. 6 March, 1969 [22 March, 1968], No. 11953/69. Headings H4D and H4R. In an ultrasonic pulse-echo system for inspecting an object and which enables the amplitudes of echo signals of wide dynamic range to be measured readily, the echo signals are fed to a display arrangement via an amplifier whose gain is controlled by a feedback signal to give a substantially constant output amplitude, and the magnitude of the feedback signal is displayed as a measure of the echo amplitude. As shown, clock 10 controls the periodic pulsing of transmit/receive transducer 14 and echo signals are fed to amplifier 18. Echoes from a selected zone in the object are passed by gate 22 to comparator 24 and if the echo amplitude exceeds an adjustable reference level set at 26 pulse generator 28 is triggered. The integrated output of generator 28 provides the gain control signal for amplifier 18 and its magnitude is displayed on centrezero meter 32. The transmitted and echo pulses respectively "set" and "reset" a bi-stable circuit 60 whose "set" time is measured by a ramp voltage generator and peak reading meter 62 to indicate the depth of a detected flow. Echo signals are also displayed on cathode-ray tube 20. Potentiometer 16 and the reference adjustment at 26 allow calibration against a standard object with a reference flaw.
Patent GB-316170-A (GB)
Title: Improvements in or relating to vulcanisers
IPC: B29C35/00
Filed: 1928-04-24
Abstract: 316,170. Stambois, D., and Stambois, R., (Representatives of Stambois, L. J.), and Stamboise, A. A. April 24, 1928. Tyre vulcanizers. -A. portable vulcanizer comprises a casing capable of being heated, on 'which is mounted an arch forming a bearing for a nut on a screw on the clamping plate. A hollow casing 10, Fig. 1. with shelves 16 for supporting a lamp is provided with upstanding members with slots 28 to take a crossbar 29, through a hole in which passes a screw 32 attached to a clamping-plate 35, and carrying a wing-nut 34 bearing on the lower side of the bar 29. The lamp 15, Fig. 3, for burning solid or liquid fuel comprises a recess 21 having an inwardly-directed flange 22 just below the top, and an undercut groove just above it to prevent creeping of liquid fuel. At the sides of the 'lamp are depending projections 20 which lock into recesses 18 in the shelves 16 of the vulcanizer casing. In a modification, the cross-bar is attached by bolts and nuts, the pressing screw is attached to the clamping plate by a swivel joint, and the sole plate may be curved.
Patent GB-142503-A (GB)
Title: Improvements in bearings for rolling mills
IPC: B21B31/07
Filed: 1920-04-30
Abstract: 142,503. Dostal, L. July 7, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Ball or roller bearings.- The roll necks of rolling- mills are encircled by bear. ing rollers or balls r run ning between steel bushes d, m. At one end of the bearing is an oiltight packping p, and at the other end a ring P provided with cool. ing-passages'g q to prevent the transmission of heat from the roll to the bearing
Patent GB-1156854-A (GB)
Title: Lactones of Optically Active Heterocyclic Amino Acids and Process for the Preparation thereof
Inventor: HEYMES RENE
IPC: C07D513/04
Filed: 1967-03-15
Abstract: 1,156,854. Lactones of heterocyclic amines; cephalosporins. ROUSSEL-UCLAF. 15 March, 1967 [15 March, 1966; 30 Sept., 1966], No. 12149/67. Headings C2A and C2C. Novel compounds of the general formula where R is hydrogen or triphenylmethyl in either racemic or optically-active form, are prepared by reacting a compound of formula or an acid addition salt thereof, with an acid to form the corresponding acid addition salt of the γ-lactone of 2-(carboxy-amino-methyl)-5-hydroxymethyl - 3,6 - dihydro - (2H) - 1,3 - thiazine - 4 - carboxylic acid of formula The latter compound, which is claimed per se, is then reacted with triphenylmethyl chloride under non-anhydrous conditions in the presence of a base to form the corresponding N-triphenyl methyl compound which is treated with a reagent capable of activating the carboxylic function thereof, preferably a dialkyl diimide, to form the desired novel compound of the first general formula above wherein R is triphenyl methyl. This may be converted to the corresponding free amine by treatment with an acid. The invention also comprises the acid addition salts of the γ-lactone compounds wherein R is hydrogen. The racemic γ-lactones may be resolved by conventional means. The novel compounds of Formula I above are reacted with thienyl-acetyl chloride to yield the corresponding novel γ-lactone of ()-7-[(2- thienyl) - acetylamino] - desacetyl - cephalosporanic acid, which has antibiotic activity. The γ - lactone of 2 - (tertiarybutoxycarbonyl - phthalimido - methyl) - 5 - hydroxymethyl - 3,6 - dihydro - [2H] - 1,3 - thiazine - 4 - carboxylic acid is prepared by condensing 2-hydroxy-3-mercaptomethyl - but - 2 - en - 4 - olide with t. - butyl - 2 - phthalimido - 3 - aminoacrylate. It is converted to the γ-lactone of 2-tertiarybutoxycarbonyl - amino - methyl) - 5 - hydroxymethyl - 3,6 - dihydro - (2H) - 1,3 - thiazine - 4 - carboxylic acid by reaction with hydrazine hydrate, followed by neutralization of the resulting salt.
Patent GB-711725-A (GB)
Title: Improvements relating to cyclone separators
IPC: B04C3/04
Filed: 1952-05-14
Abstract: 711,725. Centrifugal separators. HEINRICH. D. O. May 14, 1952, No. 12188/52. Class 23. A cyclone separator comprises a tubular body 1 having means at one end .for imparting swirl to the entering gas, a gas outlet tube 5 at the end of the body remote from the inlet, means for discharging separated particles intermediate the inlet and gas outlet, and baffles 4 extending out of or from the gas outlet tube towards the inlet and, having a radial dimension equal to the diameter of the gas outlet tube, or to the diameter of a core 3 when the swirl imparting means, comprises blades 2 mounted on a core. The particle discharging means comprises a slotted annulus 6 forming a closure for the body. The baffles may taper in the direction of flow as shown in Fig. 1, may be rectangular, or may taper in the direction of flow to a point inside the outlet tube. The baffles are cruciform or star shaped in cross-section and may include discs at right angles to the axis of the tube. The preferred proportions of the separator are A=D and B=D/2. In a modified separator, Fig. 5 (not shown), the swirl imparting means is a tangential inlet. In a multi-cell separator, Figs. 6, 7 (not shown), vertical rows of the separators span the walls of an inclined dust collecting chamber, the gas in adjacent rows of separators rotating in opposite directions and vertical partitions parallel to the separators enclosing adjacent rows of separators. Gas withdrawn from the dust collecting chamber remote from the descending dust passes through a secondary cyclone and is returned to the inlet of the multicell separator. In the further multi-cell separator shown in Figs. 8, 9 the dust collecting chamber is divided into passages 23 for descending dust, and passages 25 for gas which passes through slots 27 in partitions 26 forming the passages and is finally withdrawn at 29. In another multi-cell separator, Fig. 10 (not shown), the separators are grouped in pairs of vertical rows and beneath each horizontal pair of separators dust collecting passages are formed. Gas to be withdrawn from the dust collecting chamber rises between adjacent groups of separators.
Patent GB-695602-A (GB)
Title: Process for spinning artificial threads on to spinning machines with pairs of interinclined rolls
IPC: D01D10/04
Filed: 1951-05-24
Abstract: To facilitate the winding of freshly produced <PICT:0695602/IV (a)/1> artificial threads round a pair of mutually inclined rolls, the thread is initially pulled forward on to the delivery end of the pair of rolls by means of a swingabletube, through which liquid flows, and is wound round at this point to form a number of helical windings; the tube is then swung back to the receiving end of the pair of rolls so that the thread is then taken up by the rolls at the receiving end, and forwarded along the length of the rolls in spaced helical windings.  During spinning-on, the windings are thus disposed on the front part of the rolls, whence they can readily be removed if faults occur without fouling the difficulty accessible rear part of the rolls with broken ends of thread.  As shown, artificial thread emerges from a spinning bath and is passed several times around and between a pair of mutually inclined rollers 1.  It then passes down a tube 2 which is funnel-shaped at the top.  The tube when in the vertical position extends as far as the level of the centre of the lower member of the aftertreatment rolls 3.  During normal operation the treating liquid flows through the tube and is then collected in a trough 4. During spinning-on, the swingably-mounted tube 2 is pulled forward to the front end of the pair of aftertreatment rolls and the thread from the extrusion nozzle and spinning bath is washed directly through the tube and is temporarily received in an auxiliary channel. The thread is then wound in several coils around the pair of rolls 1 and finally around the pair of after-treatment rolls 3.  The first coils are then guided back to the rear of rolls 3 by swinging back the tube.  The process may be applied to the production and treatment of viscose threads.  The treatment liquid may be warm or hot water.
Patent GB-350657-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B23/00
Filed: 1930-04-17
Abstract: 350,657. Oil engines. RICHARDSONS, WESTGARTH & CO., Ltd. and BURN, W. S., Hartlepool Engine Works, Hartlepool. April 17, 1930, No. 13212. Addition to 305,333, [Class 7 (ii), Internalcombustion engines, Arrangement &c. of]. [Classes 7 (ii) and 7 (iii).] An insulating ring 3 of the type and for the purpose described in the parent Specification, instead of having a concentric inner surface, has the latter shaped to eliminate air pockets in which fuel from opposed injectors 1, 2 cannot penetrate. Figs. 3 and 4 show cross sections of the ring at the points of minimum and maximum radial depth respectively. The ring may be shrunk on the cylinder head or on the piston.
Patent GB-1072716-A (GB)
Title: Epoxy-urethanes
Inventor: SPARKE MAURICE BARRINGTON
IPC: C07C271/06
Filed: 1965-03-24
Abstract: Epoxyurethanes are prepared by reacting an epoxyalcohol with an organic isocyanate.
Patent GB-1395450-A (GB)
Title: Photographic cameras
IPC: G03B17/42
Filed: 1973-03-15
Abstract: 1395450 Camera exposure mechanism EASTMAN KODAK CO 15 March 1973 [16 March 1972] 12449/73 Heading G2A A camera has a release lever which moves from a first position to a second position to actuate the shutter release mechanism, at the same time pivoting a rocker member from a rest position to another position in which it effects a camera function. In the particular example disclosed, this function is the sensing and/or dislodging of the striker of a percussion ignitable flash-cube. As shown, the release lever 12 is pivoted on the camera housing by means of tabs 18 and 26 at its rear end. Tab 18 rests in a slot 20 in the housing, and a hole at the end of tab 26 fits over a threaded stud 22 on the housing. When lever 12 is depressed, a tab 42 thereon pivots a linkage member 38 which engages and pivots clockwise a spring- loaded lever 32 to trip the shutter and effect an exposure. A rocker member 50 having a pair of pivot legs 52, 54 is mounted between release lever 12 and the viewfinder cavity, the pivot legs being seated in notches 56, 58 in the camera body. Member 50 carries a roller 60 so that it may be smoothly engaged and pivoted by depression of lever 12, a slight movement of the lever causing amplified angular movement of member 50. A spring-loaded lever 61 is pivotally mounted on the housing, and when rocker member 50 is pivoted forward, a pin 67 engages the spring 64 to urge lever 61 clockwise. The end of lever 61 is coupled to a slide 66 forming part of the flash sensing mechanism, and moves it towards the right. A tab 80 on slide 66 engages a tab 78 on a coupling 68 and pivots it clockwise. A gear sector 82 on coupling 68 engages a rack portion on a member 84 whose upper end is formed as a probe 86, and moves it upwards. Lever 12 is initially depressed by the insertion of a flash-cube into the camera socket, and as probe 86 moves upwards it abuts the striker leg of the flash-cube, and its movement is halted. Further pressure on lever 12 now actuates the shutter and the flash. If the probe 86 does not encounter any striker leg, the movement of slide 66 continues until it engages the end 106 of a flag 100, which is thus pivoted downwards to become visible in the viewfinder. This warns the photographer that the flash-cube is not properly orientated, so that he may refrain from pressing lever 12 any further to make the exposure.
Patent GB-704593-A (GB)
Title: Melamine manufacture
Filed: 1952-05-16
Abstract: Melamine is prepared by heating a mixture of urea, ammonia and sulphur dioxide at a temperature of at least 260 DEG C. and under a super atmospheric pressure of ammonia of preferably more than 200 lbs./sq. inch, suitably 200 to 1,000 lbs./sq. inch.  An excess of ammonia over that required for reaction is preferably used, and the mol ratio of sulphur dioxide to urea is preferably greater than the theoretical value of 1 1/2 :1.  The melamine may be recovered from the reaction products by leaching with cold water to dissolve all components except melamine and sulphur, then dissolving the melamine in hot water from which it is separated by crystallization.  Examples are given in which the yields of melamine are specified at temperatures ranging from 220 to 360 DEG C. and ammonia pressured from 200 to 1,000 lbs./sq. inch with reaction times from 5 minutes to 24 hours.
Patent GB-964904-A (GB)
Title: Improvements in electric immersion heaters
Inventor: SEVIOUR LESLIE WILLIAM
IPC: H05B3/82
Filed: 1961-04-07
Abstract: 964,904. Electric immersion heaters. POWER FREQUENCY HEATING Ltd. March 30, 1962 [April 7, 1961], No. 12546/61. Heading H5H. The heating element 1 of an electric immersion heater is in the form of an elongated U which is wound into a spiral and can thus by turning be inserted through an opening, e.g. in the cylinder block of an I.C. engine, the diameter of which is small in comparison with the overall dimensions of the element, provided that the maximum transverse dimension 6 of the U is less than the diameter of the opening. The element 1 may be a single length of sheathed or coated heating element bent double with the free ends 3 and 4 passing through a threaded mounting union 2, or may be two lengths connected together at one end. The two legs of the U may be encased in a single sheath or coating. The spiral may be flat, cylindrical or conical (as shown). The element may be inverted in a shallow cavity (Fig. 3, not shown), so that it is held against a wall opposite the opening by its own resilience, thus minimizing vibration.
Patent GB-611279-A (GB)
Title: Improvements in liquid level pressure gauges
IPC: G01F23/16
Filed: 1946-04-26
Abstract: 611,279. Liquid - level pressure gauges. MALONE, J. F. J. April 26, 1946, No. 12626. [Class 106 (ii)] Apparatus for indicating the quantity of liquid in a container in which a diaphragm chamber is connected on one side to the container and on the other by a pipe to a pressure indicating instrument has the diaphragm chamber arranged such that the displacement of the diaphragm is sufficient to allow the use of a relatively large bore pipe between the chamber and the measuring instrument and so that pressures from the container which exceed a predetermined maximum are ineffective in expelling fluid from the other side of the diaphragm. The diaphragm chamber is formed by two dished plates 4a which clamp the diaphragm 5 so that when the pressure on the underside exceeds a predetermined maximum the diaphragm is unable to further expel gas from the space above. A pipe 6 is connected by coned union joints 8, 9 to the chamber and to a gauge 7 comprising a bellows 10, the movement of which is transmitted by a rod 17 and an arm 18 to a spindle 19 rotatably carried in a block 20. Fixed to the spindle 19 is an arm which engages in a quadrant 14. Expansion of the bellows rocks the quadrant, thus moving the spindle of a pointer 11.
Patent GB-183608-A (GB)
Title: Improvements in small power propelled vehicles or runabouts
IPC: B62D61/08
Filed: 1921-05-05
Abstract: 183,608. Harper, R. O. May 5, 1921. Sheet-metal frames; frame componends, applying and combining; radius-rods; wheel forks and like structures.-Comprises the general construction of a small motor vehicle having rear driving wheels and a front steering wheel. The combined body and framework consist of a floor and two side walls d connected at the front by a casting or pressing g carrying the front steering fork or column and at the rear by a petrol tank. The rearward part of the casting &c. g forms a footboard, and a ledge g<4> at the front serves for the attachment of the floor p<1> of a luggage, tool &c. compartment p. The casting &c. g is also provided with a bearing for a steering column i, the lower end of which carries springs k forming a wheel fork. The rotation of the column is limited by a projection l<1> engaging stops l<2> on the casting &c. g. The petrol tank connects the upper rear parts of the side members and is made from a single bent sheet and two side pieces. The single sheet is also extended to form a pendent stay which is connected to the side walls and floor. A transverse flat cross member or board a is secured to the side. members and extends beyond them so as to carry on one side the engine m, which may be moved longitudinally by nuts m<3> to adjust the tension in the chain driving the change gear from which motion is tramsmitted to the rear axle. Adjustable radius rods q con nect the axle to the frame.
Patent GB-528281-A (GB)
Title: Improvements in supporting roller arrangements for endless track vehicles
IPC: B62D55/02
Filed: 1939-05-02
Abstract: 528,281. Endless-track vehicles. TENCH, F. (Lokomotivfabrik Krauss & Co.-J. A. Maffei Akt.-Ges.). May 2, 1939, No. 13151. [Class 79 (i)] The load-supporting rollers b of an endlesstrack vehicle are mounted on independentlysprung levers c, Fig. 3, or e, Fig. 4, and overlap as shown, the axes of the outer rollers passing between the inner rollers. The rollers may be double and mounted on cranked levers controlled by springs d as shown in Figs. 1 and 3, or they may be single and mounted on transverse halfaxles or levers e as shown in Fig. 4. The levers e may be controlled by helical springs or by transverse laminated springs, and may have rubber pivots on the chassis.
Patent GB-132045-A (GB)
IPC: F41A23/50
Abstract: 132,045. Paris, A. E. C. Sept. 24, 1917, [Convention date]. Addition to 128,646. Field carriages.-Relates to the brake mechanism for trailer vehicles described in the parent Specification, and consists in providing means whereby the automatic application of the brake by the draught coupling may be prevented and the brake be applied by hand. Modified hydraulic transmission means is also described, the cylinders A and B being separated and connected by a tube U extending the length of the trail of the gun-carriage, with the cylinder A adjacent the coupling yoke Q and the cylinder B adjacent the brake band. The valves J, K are located in the head of the cylinder A, and the valve L controlling communication with the reservoir N in the head of the cylinder B. The means for rendering the brake inoperative automatically may comprise a pivoted latch V, Fig. 3, which can be swung into position between the shoulders of the coupling yoke Q and the trail of the gun. The means for actuating the brake by hand comprises, in this case, a spindle W mounted in a socket D' connected to the piston rod D of the cylinder A and adapted to be screwed into the yoke-bar Q<2> by a worm wheel W<1> on the spindle and a worm on the hand-wheel shaft x. As shown in Fig. 7, a hook Y on the yoke bar Q<2> normally engages pin d<2> fixed to the piston-rod D. By moving a handlever Z from the position shown to position II, a finger Z<1> is caused to raise the hook Y out of engagement with the pin d<2> so that automatic application of the brake by backward movement of the yoke-bar Q<2> cannot be effected. By further movement of the hand-lever the finger Z<1> pushes on the pin d<2> to apply the brake. Return movement of the hand-lever beyond the position shown engages the finger Z<2> with the pin d<3> to bring the pin d<2> back into position for re-engagement by the hook Y. In a further construction. Fig. 13, a rod Y fixed to the yoke-bar Q<2> is adapted to slide in a socket D<3> fixed to the piston-rod D, but is normally prevented from doing so by a pin z<2> on a hand-lever Z, which pin engages recesses in the red and socket, as shown. The hand-lever Z can be moved longitudinally on its pivot 1 to withdraw the pin z<2> from the recess iu the rod Y while leaving it in slots d<3> in upstanding members on the socket D<3>. The automatic application of the brake is thus prevented, but by turning the handlever to the right the brake is applied.