baber/WOPTO huggingface dataset:
Patent GB-1391392-A (GB)
Title: Heat-sensitive recorder
IPC: G01D15/10
Filed: 1973-02-20
Abstract: 1391392 Heat-sensitive recording MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 20 Feb 1973 [23 Feb 1972 8 March 1972 2 May 1972 16 May 1972 8 Sept 1972] 8362/73 Heading G1J [Also in Division B6] In a recording apparatus incorporating a heatsensitive recording sheet 5 and a thermal stylus 6, a control circuit is employed which supplies to the stylus 6 thermal energy in the form of electrical pulses at a rate which depends upon the speed of the stylus 6 over the sheet 5 so as to produce a record trace 7 of uniform thickness and colour density. The Y input resulting from the physical quantity being measured drives a servomotor 1 whose speed is monitored by a photo-electric converter 1b. A synchronous motor 3 which drives the sheet 5 is driven at constant speed or by the X axis input of the signal, the speed being monitored by detector 3a, the two measured speeds being processed by a circuit 8 which determines the frequency of the pulses of constant pulse length supplied by generating circuit 9 to the stylus 6. Since a finite time is required after initiation of recording to achieve thermal saturation of the stylus 6, a pulse length compensation is effected which initially increases the pulse length, the pulse length decreasing to its normal operating length in a time which depends upon the thermal characteristics of the stylus 6 which in turn depends upon the configuration thereof and the materials used. A large number of configurations and materials are described with reference to Figs. 3-9 and table 1 (not shown). Each stylus 6 includes (Fig. 5) a substrate 19 of, for example, N or P type material, a heat generating layer 18 of material having, for example, respectively P<SP>+</SP> or N<SP>+</SP> type conductivity, and an area 17 which is for contacting the sheet 5. The thermal sheet 5 undergoes at least one colour change and examples are given of sheets S which undergo up to three different colour changes at a corresponding number of temperatures generated by one or more styli.
Patent GB-1411179-A (GB)
Title: Remote meter reading systems
IPC: H02J13/00
Filed: 1973-02-20
Abstract: 1411179 Meter reading transmissions system SANGAMO ELECTRIC. CO 20 Feb 1973 [1 March 1972] 8381/73 Heading H3H In an automatic meter reading system in which meter readings are transmitted along power lines, each meter has a two position switch which changes position for each unit used and the switch position is transmitted along the power line in a first phase (relative to the A.C. power) for one switch position and in a second phase for the other switch position. The signals occur at a predetermined carrier frequency in one or the other half cycles of the power supply. Receivers separate signals from the different meters, increment a counter each time the switch position changes and signal the counter readings and addresses to a central processor at intervals. The system described incorporates 96 meters. These operate in two frequency ranges; 80-135 kHz in 5 kHz steps and 165-315 kHz in 10kHz steps each subdivided into 3 sets by connection to power conductors L1Ln; L2Ln and L1L2 respectively. Transmitters T.-Each transmitter has a two position switch 103 operated by the meter. It is powered from the supply lines by input circuit 101 and comprises an oscillator 105 tuned to the meter frequency and operating only in the positive or negative cycles of the A.C. depending on the position of switch 103. The oscillator signal is amplified at 107 and fed to its associated power lines via a series resonant circuit 109. Receivers R.-There are six receivers, each dealing with one frequency band from one pair of power lines. They include superheterodyne receiver 113 which is stepped at one second intervals through the 16 frequencies by switching the oscillator capacitors under the control of a clock and counter. The resulting signals are amplified and phase detected (121) giving an output #1 or #2 on one of two lines. Differential amplifier 125 and threshold circuits 127 convert the phase signal to a 1 or a 0 which is passed via multiplexer 129 to the associated storage channel CH in which a counter is stepped each time the phase sgnal changes. Output. A multiplexing system shown generally at 133 combines the signals from all the counters with the counter address and transmits them on demand, serially, in time division multiplex to a processor.
Patent GB-942968-A (GB)
Title: Improvements in the production of epsilon-caprolactam
IPC: C07D201/10
Filed: 1962-03-05
Abstract: Caprolactam is prepared from a crude, oily hydrochloride of cyclohexanone oxime containing between 1.5 and 2 mols of hydrogen chloride per mol of oxime by stripping hydrogen chloride and volatile impurities from the crude hydrochloride in the presence of a saturated hydrocarbon liquid boiling between 65 DEG C. and 150 DEG C. at atmospheric pressure until between 1 and 1.5 mols of hydrogen chloride per mol of oxime remains and the resulting hydrochloride is crystallisable as a free flowing slurry in the remaining hydrocarbon at 15 DEG  to 50 DEG C., cooling and crystallising to a free flowing slurry, mixing with sulphuric acid in a molecular ratio of 1:1 at a temperature at which hydrogen chloride is evolved, separating off the solution of oxime in sulphuric acid and subjecting the oxime to conditions of temperature and time, and a further catalyst if desired, such that Beckmann re-arrangement occurs.  Concentrated sulphuric acid is preferably used and is added to the hydrochloride at a temperature between 15 DEG  and 45 DEG C., and effecting the Beckmann re-arrangement at 80 DEG  to 200 DEG C. The oxime hydrochloride may be obtained by reacting nitrosyl chloride with cyclohexane in the presence of actinic light.
Patent GB-801571-A (GB)
Title: Improvements in or relating to pneumatic gauges
Inventor: BOOSEY FREDERICK ROBERT
IPC: G01B13/06
Filed: 1956-03-19
Abstract: 801,571. Barometric gauges and pneumatic gauging-apparatus. SIGMA INSTRUMENT CO., Ltd. March 29, 1957 [March 19, 1956], No. 8500/56. Class 106 (2). In a pneumatic gauge of the kind described in Specification 724,205, the diaphragm box comprises two plates 17, 19, each having therein a recess 18, 20 with a grooved bottom, the plates being secured together with the recesses in register to form a cavity and the diaphragm 23 being gripped between the plates 17, 19 and dividing the cavity into two chambers. The diaphragm 23 is of thin flexible material, e.g. rubber and the two arrays of parallel grooves 26, 27 minimize the tendency of the diaphragm 23 to adhere to the bottoms 21 of the recesses 18, 20, while allowing liquid to flow from the tube 14 and air to flow from the tube 16 across the surface of the daphragm even when its central part is pressed tightly against the bottom 21 of one of the recesses 18 or 20, thus minimizing violent movement of the liquid when excessive pressure is suddenly applied. A small bleed hole 28 is provided to allow air to escape when initially filling the lower chamber with liquid. The hole is then closed by tightening a screw 29 against a washer 30 to prevent liquid escaping. Specifications 724,228 also is referred to.
Patent GB-941784-A (GB)
Title: Improvements in fuel injection pumps for internal combustion engines
IPC: F02M59/28
Filed: 1962-03-06
Abstract: 941,784. Fuel injection pumps. ROBERT BOSCH G.m.b.H. March 6, 1962 [March 17, 1961], No. 8505/62. Heading F1A. In a cam-actuated fuel injection pump comprising a spring-loaded piston 4 with a cutaway 23 controlling a spill port 27, rotation of piston 4 to vary the output is effected by a control rod 18 acting through a rotatable sleeve 8 coupled to piston 4 through a pin and slot connection 9, 10. Control rod 18 may control a number of injection pumps, fine adjustment between the pumps being effected by adjusting the position of a catch 16 linking rod 18 to sleeve 8, an inspection cover 20 being provided. In other embodiments catch 16 and cover 20 are omitted and the pump cylinder 2 is rotatable to provide the fine adjustment. In a further embodiment, rod 18 is slidably mounted in bushes in the housing and is provided with a longitudinal slot engaged by a pin to limit axial movement of the rod.
Patent GB-430844-A (GB)
Title: Improvements in or relating to instructional apparatus for the game of golf
IPC: A63B69/36
Filed: 1934-03-19
Abstract: 430,844. Golf - practising appliances. BERRY, A., 7, Portsmouth Road, Kingston, Surrey. March 19, 1934, No. 8564. [Class 132 (ii)] A device for indicating movements of a player's head in practising a golf swing comprises a number of optically aligned and spaced aperture sights situated adjacent the normal position the ball would occupy relatively to the player and which afford a visual indication of the direction and extent of movement of the head by the asymmetry produced by such movement. As shown in Fig. 3, the device comprises a casing 1 having a square aperture 4 closed by a ground glass screen 5. Light entering through the screen is reflected by a mirror 3 and viewed by the player through a lens 8 mounted in a circular aperture 7 in the casing. A hood 10 casts a shadow over the lens. In order that the observed movement of the aperture 4 should be in the same direction as the movement of the head, the aperture is arranged within the focus of the lens. Cross wires 11, 12 are arranged between the aperture sights, the horizontal wire 11 being disposed further from the lens than the other to render the observed vertical head movements proportional to the horizontal movements. Alternatively, the wires may be equidistant from the lens and the latter be combined with a cylindrical lens having a horizontal axis. The casing is mounted on three legs, of which one is adjustable. In a modification, Fig. 6, the casing 16 is cylindrical and hinged to a base plate 2 carrying a mirror 3. Light reflected from the mirror passes through a circular lens 21 and is observed through a square aperture closed by a ground glass screen 19. In further modifications, the wires are replaced by photographic representations of pointers, or the device may include optically aligned lantern slides marked with rings, dots or other symbols.
Patent GB-578407-A (GB)
Title: Improvements in or relating to inverter circuits
IPC: H02M7/62
Filed: 1943-05-28
Abstract: 578,407. Converting. ELECTRONIC LABORATORIES, Inc. May 28, 1943, No. 8571. Convention date, May 8, 1942. [Class 38 (ii)] In an inverter, adapted to supply A.C. of substantially constant voltage in spite of variations of voltage of the D.C. source 10, the source 10 supplies pulsating current, e.g., by means of an interrupter 11, to a circuit including a linear inductance 36 and a saturable inductance 23 having a condenser 24 in parallel with it. In the form shown, which is for a full-wave inverter, the interrupter supplies alternately with the above circuit another similar circuit including a linear inductance 37 and another saturable inductance, which forms with the first saturable inductance the centrallytapped primary of a transformer, the secondary 33 of which supplies the loads. The exciting current of the parallel combination of saturable inductances 23 and condenser 24 becomes inductive when the applied voltage is large and capacitative when the applied voltage is small and there is an intermediate state where there is minimum current and unity power factor. The linear inductances 36, 37 co-operate with the above parallel combination to produce a substantially constant voltage across it and therefore across the load. More complete compensation for voltage variation of the source 10 is provided by arranging in addition a winding 25 coupled to the windings 36, 37 and in series with the load. In a modification the vibratory switch is replaced by a pair of triodes, Fig. 4 (not shown). Reference has been directed by the Comptroller to Specification 554,712.
Patent GB-248936-A (GB)
Title: Improvements in or relating to counting-devices for typewriters
IPC: B41J29/20
Filed: 1925-04-01
Abstract: 248,936. Osborne, Thompson, &. Co., Ltd., and Thompson, C. E. April 1, 1925. Counters actuated by revolving mechanism. - A counting-device for indicating the work done on a typewriter is driven directly or through gearing by the escapement wheel or its shaft; the counting-device indicates the number of key operations or, if reducing- gearing is provided, indicates a number proportional to the number of key operations. The counting-device 1, Fig. 1, has its spindle 2 provided with a coupling-member 3 engaging the end 4 of the shaft of the escapement wheel 5. The counting-device is secured by a screw in a channelled part 6 of a vertically adjustable bracket 9 secured by screws 13 to an angle-plate 10 which is secured by a screw 16 abutting on the framework. The counting-device 29, Fig. 5, is driven through reducing-gear by a pinion 35 engaging a pinion 36 on the escapement-wheel shaft. The gearing is mounted in a casing 34, and the counting-device is mounted in a channelled support 30 adjustably secured to the base of the casing by screws 31 passing through slots 32. In a modification, the counting-device has a toothed wheel gearing with the escapement wheel, and is adjustable axialy on a channelled plate which is adjustable laterally on a bracket secured to the framework.
Patent GB-1190546-A (GB)
Title: Process for producing L-Threonine and L-Valine
IPC: C12P13/08
Filed: 1969-02-18
Abstract: 1,190,546. L-Threonine and L-valine by fermentation. KYOWA HAKKO KOGYO CO. Ltd. 18 Feb., 1969 [9 March, 1968], No. 8768/69. Heading C2C. L-Threonine and L-valine are produced by culturing a hydrocarbon-utilizing micro-organism, which requires thiamine and also isoleucine, α-ketobutyric acid, or α-aminobutyric acid for growth, under aerobic conditions in an aqueous nutrient medium containing thiamine, the growth requisite and a hydrocarbon or a mixture of hydrocarbons as the main source of carbon. Specified micro-organisms are Arthrobacter paraffineus ATCC 21220, Corynebacterium hydrocarboclastus ATCC 21221, and Brevibacterium ketoglutamicum ATCC 21222, and the hydrocarbon source is preferably one or more straight or branched chain alkanes of from 10 to 20 carbon atoms, e.g. a C 11 -C 18  nparaffin mixture or kerosene. The growth requisites are preferably present in an amount of 5-50 mg./l. medium, the concentration of thiamine is between 1 and 5 mg./l, and the pH is approximately 7. The medium may also contain citric, succinic, malic, fumaric or acetic acids, their sodium salts or L-homoserine, resulting in higher yields. Small amounts of other amino acids occur as by-products of the process. Specifications 1,117,154 and 1,122,508 are referred to.
Patent GB-1181582-A (GB)
Title: Radio and/or Television Audience Survey Apparatus.
Inventor: JENKS ARTHUR E
IPC: H04H1/00
Filed: 1967-02-23
Abstract: 1,181,582. Aerials. TELEVISION AUDIT CORP. 23 Feb., 1967, No. 8775/67. Heading H4A. [Also in Division G4] In an audience survey system (see Division G4) television sets are monitored by an aircraft, an antenna on which picks up signals from local oscillators in the receiver. In one embodiment (Fig. 8) the antenna comprises two copper planar spirals 91, 93 positioned half a wavelength apart and each having two arms 95, 96; 98, 100. The spirals are cemented to fibreglass 102. In another embodiment (Fig. 16) the antenna is in the form of a helical coil 194 mounted perpendicularly to a reflector 192. Alternatively an array of dipoles (Fig. 17, not shown) arranged one half # from a reflector (where # is the wavelength of the upper frequency) may be used, the dipoles being arranged co-linearly. Alternatively two arrays aligned at right-angles and connected in parallel may be used. In a further embodiment (Fig. 18) a dipole 208 is positioned between reflectors 206 at an acute angle α to each other.
Patent GB-769410-A (GB)
Title: Improvements in or relating to the treatment of bearing surfaces
Inventor: SAMUEL ROBERT LIONEL
IPC: C23C8/62
Filed: 1954-03-25
Abstract: A sulphide is produced on a bearing surface of a ferrous metal or copper-base alloy by heating with a composition containing a major proportion of calcium sulphate and a minor proportion for reducing agent at a temperature of 170 DEG -700 DEG C.  The reducing agent may be dextrine, starch or flour and the surface to be treated may be packed in the composition or may be coated, as by spraying, dipping or painting, with the composition.  The examples relate to the treatment of steel bars with a composition comprising, by weight, 80 parts of calcium sulphate, 20 parts of dextrine and 1 part of ammonium fluoride.  The Provisional Specification refers to heating in the presence of hydrogen sulphide and a reducing gas and/or inert gas.
Patent GB-273404-A (GB)
Title: Improvements in covers of inspection chambers, man-holes and the like
IPC: F16J13/08
Filed: 1926-04-01
Abstract: 273,404. Graveley, H. V. N. April 1, 1926. Manhole covers. - Manhole and like covers e which are secured to their seat, by a cross-bar m, the ends of which are caused to engage recesses u on the outer frame by the rotation of a central screw i on the cover, are positively unseated and released when unlocking rotation is imparted to the screw. In the form shown, the screw i, which engages the cover by a spherical joint l, has a spring o mounted between the cross-bar and an outer nut and washer r. Unlocking rotation of the screw acts by friction to turn the bar m into the open portion of the slot u, Fig. 3, and further rotation of the screw causes a collar w thereon to engage beneath the cover to unseat it. The joint between the cover and the frame is effected by deep and shallow grooves c, f on the frame, which contain non-set filling material and are engaged by corresponding projecting rims on the cover.
Patent GB-199495-A (GB)
Title: Improvements in and relating to oil fuel furnaces
IPC: F23C99/00
Filed: 1922-03-29
Abstract: 199,495. Burdon, W. M., Burdon, M. M., and Burdons, Ltd. March 29, 1922. Liquid-fuel furnaces.-An oil-fired furnace comprises a combustion chamber 8 shaped to direct the flames, &c., upwards through a heating-chamber 9, above which is an expansion chamber 10 of larger cross-sectional area than the heating-chamber. This construction reduces back pressure and thus minimizes escape of gas through the working-openings. In the metal-heating furnace shown the burner 14 delivers horizontally into the combustion chamber, and the flames are directed upwards, and more or less through the middle of the heating-chamber 9 by the converging walls 8<a>. The outlet port 12 from the expansion chamber leads to a regenerator chamber 11, in which are pipes 16 for heating the air for combustion. Part of the hot air from the pipes 16 may be passed through a coil 21 in the fuel tank 19, and the oil is forced to pass over the coal by a partition 22 having a cut-away portion remote from the fuel outlet. A modified form of furnace is described having two burners delivering through opposed walls of the combustion chamber, and two regenerator chambers, one for each burner. The two burners are preferably set out of line with one another.
Patent GB-550700-A (GB)
Title: Improvements in and relating to caps or closures for bottles and like containers
IPC: B65D41/42
Filed: 1941-07-17
Abstract: 550.700. Closures for bottles and like containers. YOUNG. S. D. July 17, 1941, No. 9056. [Class 125 (iii)] A cap 1 or closure for bottles and like containers to engage a bead 8 just below the mouth of the container, has a reinforcing rib 3 round its periphery. At two points in the periphery slots 4 are provided and they are located mainly above the reinforcing rib 3 but their curved extremities penetrate into it. A sealing ring. formed for instance by a flow-in composition, and a cork pad 6 are arranged in the cap. The closure is secured by rolling its edge under the bead 8 on the bottle neck and can only be removed after the tongues 5 are torn away. The cap can be used as a re-seal.
Patent GB-914764-A (GB)
Title: Improvements relating to the preparation of chromium carbonyl derivatives
IPC: C08F8/42
Filed: 1959-03-16
Abstract: Unsaturated hydrocarbons such as ethylene, a -olefins and diolfins may be polymerized in the presence of a catalyst comprising an alkyl metal compound of a Group I, II or III metal and an aromatic-chromium tricarbonyl such as toluene chromium tricarbonyl.  Example 7 describes the preparation of a chromium containing polymer by heating polystyrene and chromium hexacarbonyl at 190 DEG C. under pressure. Specification 877,109 is referred to.  Reference has been directed by the Comptroller to Specification 856,354.ALSO:Compounds of formula RCr(CO)3 in which R is an organic compound containing at least one aromatic ring having six carbon atoms are prepared by reacting the aromatic compound directly with chromium hexacarbonyl at a temperature from 50 DEG  to 280 DEG C. The reaction may take place in a closed vessel under constant volume and superatmospheric pressure, advantageously in the presence of a CO acceptor such as finely divided nickel, or under constant pressure.  The invention also comprises compounds of formula R1Cr(CO)3 where R1 is an aromatic compound containing at least one aromatic ring with six carbon atoms, at least one of which is substituted.  Among many others, the following compounds are typical of the many prepared:- the chromium tricarbonyls of toluene, symtrimethylbenzene, chlorobenzene, benzyl alcohol, benzoic acid, N,N-dimethyl aniline and methyl terephthalate. Specification 877,109 is referred to.  Reference has been directed by the Comptroller to Specification 856,354.
Patent GB-199499-A (GB)
Title: Improvements in apparatus or mechanism for guiding and stretching fabrics in or while feeding same to bleaching, dyeing, finishing and like machines
IPC: D06C3/00
Filed: 1922-03-30
Abstract: 199,499. Thornber, J., and Henshilwood, A. B. March 30, 1922. Feeding and registering webs.-In devices for transversely stretching and guiding webs in their passage into or through bleaching, dyeing, or finishing apparatus, of the kind in which each eage of the web is gripped between a pressure roller and a co-operating roller, disc or other abutment, the nip of the pressure roller being controlled mechanically by a feeler engaging the edge of the web, the pressure roller is carried by arms mounted on pointed pivots to reduce friction, and the feeler is fixed to a shaft or barrel also mounted on pointed pivots and connected by linkage to the arms of the pressure roller. In one form, Figs. 1 and 2, the pressure roller 3, cooperating with a roller 4, is carried by arms c, d of a barrel 6 mounted on pointed screw pivots a. b and the feeler h<2> is fixed to a barrel 10 mounted on pointed pivots k, k<1>. Arms g, h projecting from the barrels 6, 10 respectively have recesses g<1>, h', Fig. 5, to form bearings for the pointed ends of a connecting rod 9 which trahsmits the movement of the arm h to the arm g. The pressure of the roller 3 upon the web is due to its weight and this pressure may be varied by adjusting the position of the pivots a, b or by providing a counterweight 7 angularly adjustable about the pivots a, b by means of a slotted arm f and securing screw 7<a>. The frame 2 carrying the device is secured to the main frame of the machine by a circular part 2<a> and central bolt so that the angle of the rollers 3, 4 with respect to the run of the web may be varied to alter the stretching effect. The roller 4 is mounted on eccentric bearings so that it may be adjusted into the plane of the guide plates 12, 12<a>, or into the gap between these plates. In a modification, Fig. 6, the barrel 10 is operatively connected to the roller 3 by a slotted arm 15 on the barrel, a link 14, and an arm 16 secured to one of the roller arms d.