baber/WOPTO huggingface dataset:
Patent GB-981731-A (GB)
Title: Improvements in or relating to sawtooth circuit arrangements
IPC: H04N3/185
Filed: 1962-07-10
Abstract: 981,731. Sawtooth circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 10, 1962 [July 13, 1961], No. 26494/62. Headings H3P and H3T. In a sawtooth current generator, the flyback pulses are fed via an adjustable impedance to a voltage dependent resistor, the resulting direct voltage being used to control the sawtooth amplitude. As shown, a line output stage for television apparatus comprises a valve or transistor 1 driven by a sawtooth waveform 2 so as to feed a sawtooth current via a transformer 8 to deflection coils 10. An efficiency diode circuit 6, 9 is provided. The positive flyback pulses are fed via a blocking capacitor 15 and a variable resistor 14 to a voltage-dependent resistor 16 which provides a negative amplitude-stabilizing voltage for valve 1 as described in Specification 890,805. Resistor 16 is biased from the boosted H.T. via resistor 18. This resistor may alternatively be connected across capacitor 15. Resistor 14 is adjusted to compensate for tolerances in resistor 16.
Patent GB-1482819-A (GB)
Title: Addressing device for a programme stored data processing system
IPC: G06F12/02
Filed: 1975-06-24
Abstract: 1482819 Memory addressing INTERNATIONAL STANDARD ELECTRIC CORP 24 June 1975 [28 June 1974] 26711/75 Heading G4A An arrangement for selectively modifying memory addresses involving look up in read only memories is described. A processor supplies a program address having higher H and lower L order parts specifying a table base and a word location within a table in a memory 6 having a read only part for program instructions and a read/write part for data. The processor or a device including a comparator compares the high order part H with the address of the boundary between the read only and read/write parts of memory 6 and produces for each supplied address a signal DA or DA indicating data and an instruction respectively. For an instruction, signal DA enables read only memory 1 which is addressed by the high order part H to read out the corresponding page address in memory 6, which, together with the unchanged low order part L via selector 7, addresses memory 6. For data, signal DA causes read only memories 2 and 3 to be addressed with the high order part H to read out the page address in memory 6 containing the table which contains the desired word and the location in that page of the first word of the table respectively. The output of memory 3 is added at 4 to the low order part L of the address to form the low order part of the address of the required word to be supplied to memory 6, any carry R being added at 5 to the page address read from memory 2 to form the high order part of the address for memory 6. The read only memories 1-3 may be programmable devices which can be altered, e.g. as integrated circuits forming the ROM part of memory 6 are relocated. In a modification program addresses relating to, e.g. programs common to a number of users are supplied directly to memory 6. The address modification, with its attendant delays, is used when the supplied address relates to data or to a program particular to a particular user. In such cases a comparator acting on the high order part H of a supplied address determines whether address modification is required.
Patent GB-838906-A (GB)
Title: Improvements relating to control systems for a.c. commutator motors
Inventor: MAGGS ARTHUR HEMBOROUGH
IPC: H02K27/12
Filed: 1957-08-23
Abstract: 838,906. Control of A.C. motors. BRITISH THOMSON-HOUSTON CO. Ltd. Aug. 22, 1958 [Aug. 23, 1957], No. 26718/57. Class 38 (3). An A.C. commutator motor has its stator winding 1 connected to a three-phase supply, and its armature is provided with fixed brushes which are connected to the secondary windings 7 of a double induction regulator whereby a voltage of variable magnitude and constant phase angle is injected into the secondary windings of the motor. The primary windings of the regulator are connected to the supply in series with capacitors 8 and the arrangement is such that the capacitive reactance at the supply frequency cancels or reduces the series-inductive reactance of the regulator. Self-excitation of the motor is suppressed by shunting each capacitor by a resistor 9. Specification 539,209 is referred to.
Patent GB-854245-A (GB)
Title: Improvements in or relating to articulated torque transmitting couplings
IPC: B21B35/14
Filed: 1957-08-23
Abstract: 854,245. Universal joints; shaft couplings. MOELLER & NEUMANN G.m.b.H. Aug. 23, 1957 [Aug. 24, 1956], No. 26753/57. Class 80(2). When replacing a worn roller in a rolling mill, a bell-mouthed sleeve 4 connected to a shaft 1 fast with a new roller (not shown) and a tapered spigot 8 on the end of a driving spindle 7 are approximately aligned, so that the bell - mouthed sleeve can be pushed on to the spigot. The bellmouthed sleeve 4 is in splined engagement with a part-spherically shaped ring 3 universally mounted by teeth 2<SP>1</SP> in a collar 2 fast with the roller shaft 1, and is biased downwardly of Fig. 1 by a spring 6. Facial teeth 5<SP>11</SP>, 7<SP>11</SP> on flanges of the bell-mouthed sleeve 4 and the driving spindle 7, respectively, transmit torque between the parts. If, when the new roller has been positioned, the tips of the teeth 5<SP>11</SP>, 7<SP>11</SP> clash, the bell-mouthed sleeve 4 is pushed upwards and the spring 6 compressed. When the spindle 7 begins to drive the roller, the teeth 5<SP>11</SP>, 7<SP>11</SP> ratchet over each other and are then moved into full engagement by the spring 6. The lower end of the spindle 7 is connected through a universal joint comprising a part-spherical body 9, teeth 91 and a sleeve 10 to a driving pinion (not shown). As modifications, the positions of the bell-moulded sleeve 4 and the spigot 8 may be interchanged, and the part-spherically shaped ring 3 may be formed internally with a central bore having a bell-mouthed opening into which the spigot is fed, a separate sleeve 4 then not being provided.
Patent GB-964208-A (GB)
Title: Improvements in or relating to dehumidifying and enriching combustible gases
Inventor: FOWLER RAY
IPC: B01D53/26
Filed: 1961-07-25
Abstract: Dehumidified combustible gas of predetermined calorific value is produced by vaporizing a liquefied petroleum gas by heat contained in a stream of moisture-containing gas of lower calorific value, with simultaneous cooling of said gas and condensation of the moisture therein, and mixing the lower calorific value gas with vaporized petroleum gas, at least a part of the vaporized gas being that vaporized by the moisture-containing gas, the condensed moisture being separated before or after the mixing is effected, determining the calorific value of the mixed gas, and adjusting the relative proportions of gases to obtain a mixture of the desired calorific value. In a modification, the petroleum gas is vaporized by and mixed with the moisture containing gas of lower calorific value, the temperature of the cooled gas is determined, and the rate of vaporization is adjusted so that the temperature is maintained above the ice formation temperature, after which the calorific value is adjusted by the addition of separately vaporized petroleum gas. The liquid petroleum gas may be introduced directly into the stream of moisture-containing gas, for example in the throat of a Venturi, the condensed moisture droplets being removed in a cyclone or knock-out drum, or indirect heat-exchange may be employed.  Suitable apparatus is described.
Patent GB-249431-A (GB)
Title: Method of preventing incrustation in steam boilers
IPC: C02F5/08
Filed: 1925-10-27
Abstract: 249,431. Bologne, G., and Dyrbusch, W. Oct. 27, 1925. Drawings to Specification. Incrustation, preventing and removing. - Incrustation in steam boilers is prevented by means of the sap of alder wood, together with the action of zinc or other metal plates partly immersed in the water. For this purpose, alder battens of triangular cross section are stacked within the water space so that the sap is extracted.
Patent GB-478531-A (GB)
Title: Improvements in textile combing machines
IPC: D01G19/14
Filed: 1936-10-05
Abstract: 478,531. Combing-machines. BRISCOE, J. Oct. 5, 1936, No. 26910. [Class 120 (i)] In a Heilmann combing-machine, the front detaching roller 15 is reciprocated independently of all the other rollers upon the fluted segment 18 towards and away from the top comb 22 in such a manner that the rear portion of the tuft of fibres is drawn through the top comb in progressive sequence by nipping the most projecting fibres first, and those projecting a lesser distance after, as the roller 15 advances to the comb, thereby allowing a high speed of rotation to be given to the other rollers 16, 17 which clo not reciprocate along the fluted segment with the roller 15. The roller 15 is reciprocated by two hooped links 13 and when not in contact with the segment 18 is supported by two arms 12 pivoted on the lifter shaft 3 and supported by an adjustable stop 20 on the nipper connecting-rod 21. The shaft 3 is oscillated through the arm 4 and rod 6 by the lifter cam 8 while the hooped links 13 are pivoted to arms 11 secured to the shaft 3 and a lever 24 pivoted on the nipper shaft 25 carries a bowl 26 engaged by the heart cam 27 and is connected at 23 to the rod 21. When the cylinder combs 28 are in operation, the roller 15 is raised by depression of the bowl 26 and lifting of the arms 12. When the cylinder 19 has rotated to the point at which the front part of the tuft of fibres must be gripped between the roller 15 and the segment 18, the rod 21 is lowered, thus opening the nippers 29 and lowering the roller 15 into contact with the segment 18. In a modification, the bowl 7 is carried at the end of a link adjustably coupled to the arm 4.
Patent GB-447236-A (GB)
Title: Vee belt and grooved pulley for the same
IPC: F16G5/04
Filed: 1935-09-30
Abstract: 447,236. Driving-belts. HJARTSATER, J. J., Nygard Railway Station, Norway, Sept. 30, 1935, No. 26939. Convention date, Oct. 13, 1934. [Class 80 (i)] A V-belt of the type comprising harder and softer portions has an outer convex surface 6 and an inner concave surface 7 and is covered on the sides 4 with elastic wearing and friction surfaces. The harder material 2 may be placed in the outer part of the belt, as shown, and the softer material 3 in the inner part, or vice versa, or the harder material may be at the centre, or harder and softer portions may alternate. The harder parts may be of cord or canvas, which may be reinforced, or replaced, by wire, ribbon or rope of beryllimn alloys or other material. The outer and inner coatings 6, 7 may be of rubber.
Patent GB-1291678-A (GB)
Title: L-dopa and derivatives
Inventor: NAKANO HIROFUMI
IPC: C07C231/12
Filed: 1971-04-19
Abstract: 1291678 N-Acyl-DOPA KYOWA HAKKO KOGYO CO Ltd 19 April 1971 [4 May 1970] 26983/71 Heading C2C N-acyl-3,4-dihydroxyphenylalanines are prepared by reacting N-acyltyrosines with an - organic endiol compound including ascorbic acid, dihydroascorbic acid, D-isoascorbic acid, diketogulonic acid, dihydroxymaleic acid and diketosuccinic acid, in the presence of ferrous ions and oxygen and optionally in the presence of ethylenediamine-tetraacetic acid. The N- acyl-dopa may be converted to L-dopa by acid hydrolysis.
Patent GB-785252-A (GB)
Title: Method of detecting pores in webs of artificial plastic
IPC: G01N27/20
Filed: 1955-09-22
Abstract: 785,252. Testing sheet material. FARBWERKE HOECHST AKT.-GES. VORM. MEISTER, LUCIUS & BRUNING. Sept. 22, 1955 [Sept.. 28, 1954], No. 27067/55. Class 37. In a method for detecting the presence of pores in artificial plastic sheet material, the material is passed between high voltage charged electrodes so that sparking occurs and discolours the edge of each pore. The method may be operated by condenser discharge.
Patent GB-853830-A (GB)
Title: Improvements relating to cathode-ray tubes
Inventor: BURN KENNETH COLLETT
IPC: H01J29/74
Filed: 1958-08-26
Abstract: 853,830. Cathode-ray tubes. FERRANTI Ltd. Aug. 21, 1959 [Aug. 26, 1958], No. 27285/58. Class 39(1). A cathode-ray tube has located between the pairs of deflector plates 4, 5 two apertured plates 6, 7 which are operated as an electron lens and which serve to adjust the sensitivity of the first pair of deflector plates. The apertures in the plates 6, 7 may be circular instead of rectangular.
Patent GB-390208-A (GB)
Title: Joint or terminal for electric cable
IPC: H02G15/10
Filed: 1931-10-02
Abstract: 390,208. Cable joints. STANDARD TELEPHONES & CABLES, Ltd., SCOTT, T. R., and WEBB, J. K., Connaught House, Aldwych, London. Oct. 2, 1931, No. 27408. [Class 38 (i).] A high-tension electric cable joint is provided with a container or sleeve into which is forced a solid dielectric, e.g. cotton, in suspension in a liquid such as oil, the container or sleeve allowing free egress of liquid only so that solid matter is accumulated in the container. Cables 1, Fig. 1, have their cores, insulation, &c. exposed in the usual manner and a joint sleeve 5 fitted with one end gripping the sheath and the other end flared. An auxiliary sleeve 6 is in two flared parts bolted together to form the container with an inlet pipe 7. The pressure of the auxiliary sleeve on the metallized paper is such as will allow oil under pressure to pass through. The lead sleeve 5 is wiped on to the cable sheath, and may be provided with outlet and inlet pipes 9. Filters 10 of gauze &c. may also be employed in the auxiliary sleeve, so that on pumping in the solid dielectric in suspension in oil through the pipe 7, the oil escapes either through the joint or the filters and accumulates in the outer sleeve. This may be removed and fresh, dry, degasified oil introduced through the ducts 9, which are then sealed off or connected to pressure tanks as desired. In a modified form, as in Figs. 2 and 3, the container is in the form of a paper roll which has some of the inner layers out in a plane at right-angles to the axis of the roll, insulating sleeves 11 being connected to threads 12 which pass through pipes 13 in the joint sleeve 5. When the external joint has been wiped on to the sleeve of the other cable end and the lid 15 sealed, the threads 12 are withdrawn so that the paper wrappings assume an ellipsoidal shape. The filling is introduced through the pipes 14 which have tapped ends which engage pipes substituted for the withdrawal tubes 13. A conductive wire 8, Fig. 1, connecting the metallized paper 4 and the auxiliary sleeve 6 prevents the occurrence of floating potentials. Specification 377,311 is referred to.
Patent GB-950111-A (GB)
Title: Improvements in thermostatic controls for electric surface heaters
Inventor: MCGOWAN ERIC
IPC: H01H37/52
Filed: 1961-07-28
Abstract: 950,111. Thermal switches. BRITISH THERMOSTAT CO. Ltd. July 16, 1962 [July 28, 1961], No. 27448/61. Heading H2B. At a definite temperature below the desired value of an electric surface heater 2, a thermostat 9 moves a spring blade 5 away from a bimetal 1 to break the heater circuit, the bimetal then cooling to make contacts 3, 4 again and re-commence heating, and as the temperature of the vessel 11 heated by heater 2 rises, the " off '' periods of the bimetal become increasingly longer until the desired temperature is reached. An adjustable stop 8 restricts movement of the bimetal 1 away from blade 5, and sets the temperature at which the bimetal cycles. A permanent magnet 6 and armature 7 ' impart snap-action to the operation of the contacts 3, 4. In another embodiment the bimetal and the spring blade are joined together and the adjustable stop is held in an extension from the two blades (Fig. 2, not shown).
Patent GB-304220-A (GB)
Title: Improvements in and relating to bed settees, or chair and like folding beds
IPC: A47C17/23
Filed: 1927-10-17
Abstract: 304,220. Golding, W. F. Oct. 17, 1927. Beheads convertible into seats. -In a bed-settee of the type having foldable sections c, d, e, the head section c having imparted to it, during the opening and closing of the bed, a rising and falling motion, automatically operating means are provided for filling the space between the end of the head section and the frame b when the parts are in their extended position. The spaceclosing means may comprise an unbalanced board j, j<1>, pivoted on pins i engaging inclined slots h<1> in brackets h, and adapted to turn, by gravity, into a horizontal position, Fig. 1, where it is retained by stops j<3>, and to be turned, when the device is folded, into a substantially vertical position, Fig. 3, by the stops k. The back l may be pivoted to the frame b by links l<1>. Specifications 188,472 and 204,541 are referred to.
Patent GB-191494-A (GB)
Title: A valve cut-off correction instrument
IPC: F01B25/00
Filed: 1921-10-15
Abstract: 191,494. Caracristi, V. Z. Oct. 15, 1921. Valves and valve-gear, indicating-apparatus for.-In a locomotive or other engine, the speed and valve cut-off are simultaneously indicated on adjacent dials 11, 15 by pointers 12, 16 respectively, and may be recorded together by curves A, B on a travelling tape 14. The dial 15 is graduated to show the most efficient cut-offs for various speeds. The finger 12 is operated from the main shaft through suitable gearing and the finger 16 is under the control of the reversing- lever 8 and is connected up to the reversing- shaft 7 so as to be operative only during forward running. A guide to efficient running and a record of defective control is thus provided. An allowance is made when using superheated steam. An expansible, resistance plate 20 carrying an electric circuit controlled by a pyrometer 29 indicating the degree of superheat, is placed between the index rod 19 and a reversing-lever rod 21.
Patent GB-1217812-A (GB)
Title: A differential pressure responsive switch
Inventor: PHILLIPS JAMES W
IPC: H01H35/26
Filed: 1969-05-30
Abstract: 1,217,812. Fluid actuation of switches. F. W. DWYER MFG. CO. Inc. 30 May, 1969 [7 June, 1968], No. 27469/69. Heading H1N. [Also in Division G1] A differential pressure sensitive switch comprises a flexible diaphragm 19 clamped by its rim between base 1 and housing 25, low and high pressure inlets 3, 5, on the same side of the diaphragm 19, and one or more communicating passageways 31 in the diaphragm rim between annular grooves 15, 43 in the diaphragm clamping surfaces of the base 1 and housing 25, groove 15 communicating via a passage 13 with the high pressure inlet 5 so that high pressure is applied to the opposite side of the diaphragm from the inlets 3, 5. Four spaced recesses 49 connect groove 43 with the high pressure space between the diaphragm 19 and housing 25, see also Fig. 9 (not shown). A diaphragm plate 39 has a protuberance 99 engaging the long arm 69 of a bell-crank lever 65, movement of the diaphragm causing arm 69 to move an actuating lever 84 to actuate a microswitch 23. An adjustable spring 9 is fastened to the short arm 67 of lever 65 and is secured to an adjusting nut 61 at its other end. Movement of an adjusting screw 11 causes nut 61 to move axially, without turning, in a recess 7 of base 1 to adjust the pressure of coil spring 9. The base 1 may be transparent and have a scale along which nut 61 visibly moves, Fig. 2 (not shown). There may also be a visible switch position indicator 100, Fig. 2 (not shown). An enclosure 101 for the leads to switch 23 has four tabs 103 fitting on four studs 105 of base 1 and has a removable lid 109. A mounting bracket 113 is mounted on two of the studs 105. Nuts 115 hold the enclosure 101 and bracket 113 on the studs 105. The diaphragm 19 has projections 37, on which the diaphragm plate 39 locates, and has an annular rib 33 and a series of radial strengthening ribs 35, Fig. 11 (not shown). The thin convoluted annular portion 41 allows easy flexing under pressure of the diaphragm, which may be of neoprene. Base 1 and housing 25 may be of metal or plastics.
Patent GB-1355581-A (GB)
Title: Oscillating string balance
IPC: G01G3/16
Filed: 1971-06-11
Abstract: 1355581 Weighing electrically AUGUST SAUTER K G 11 June 1971 [28 July 1970] 27482/71 Heading G1N In a vibrating string balance comprising two loaded strings, one acting as a reference oscillator and the other as the load measuring oscillator, the body of the balance is constructed to have a low resonant frequency, e.g. 20Hz, to reduce the effect of external oscillations on the vibrating strings. As shown Fig. 1 the base-plate and frame 2 of a weighing balance is mounted on a fixed surface 1 through springs 3 and shock absorbers 4. A first vibrating string 5 loaded with a weight 6 forms a reference oscillator and a second vibrating string 7 loaded with fixed weight and a test weight 9 forms the measuring oscillator. The strings are maintained in vibration electrically and their frequencies are compared to determine the mass of the test body 9. A body 10 is arranged in the balance on springs 11 and shock absorbers 12, having a resonant frequency at approximately 20Hz to absorb parasitic oscillations up to this frequency. The 10, 11, 12 combination may be split up into several units each with its own resonant frequency Figs.3, 4,(not shown) to cover a frequency band: the frame 26 Fig. 5 of the weighing balance may act as the body 10, using a foam rubber ring 27 as a combined spring and shock absorber: the body 10 may be associated with a turnable spring cum shock absorber 31 Fig. 6.
Patent GB-750629-A (GB)
Title: Manufacture of moulded articles from polyamides
Inventor: COSTAIN WINSTON
IPC: C08G69/02
Filed: 1953-10-07
Abstract: Polyamides formed from normal mixtures of ingredients to which has been added a small proportion of trimesic acid or amide-forming derivative thereof and an equivalent quantity of a diamine are particularly useful for shaping by extrusion or injection moulding. The proportion of trimesic acid is preferably 0.3-3.18 molar per cent of the total dicarboxylic acid and aminocarboxylic acid content of the polyamideforming composition.  A mono-functional amideforming reactant, e.g. acetic acid, may also be included as described in Specification 495,790.  The amount of trimesic acid added is greater within the above range as the amount of added acetic acid increases. A small proportion of delustrant or pigment, e.g. TiO2, may also be added at any stage of the process.  Examples describe the preparation of polyamides from small proportions of the neutral salt from hexamethylene diamine and trimesic acid mixed with (1) and (4) hexamethylene diammonium adipate; (2) a mixture of hexamethylene diammonium adipate and hexamethylene diammonium sebacate; (3) hexamethylene diammonium adipate containing some acetic acid. Extrusion tests on the polymers are described and the physical properties of films from the polymers are compared with those of normal polyamides.
Patent GB-421299-A (GB)
Title: Improvements relating to the manufacture of pieces of toffee and like confectionery
IPC: A23G3/50
Filed: 1933-10-06
Abstract: 421,299. Moulding toffee &c. in rollling- machines. FORGROVE MACHINERY CO., Ltd., and GROVER, F., 432, Dewsbury Road, Leeds. Oct. 6, 1933, No. 27541. [Class 87 (ii)] [See also Group VI] In machines for shaping, feeding, and cutting toffee and like confectionery, in which cooperating rollers shape the material into rope or bar form for severing into lengths for subsequent wrapping, the rollers b<1>, b<3> are adapted to form a permanent groove in one or both sides of the bar to increase the overall size of the wrapped package without a corresponding increase in weight. As illustrated, the rollers produce an I-section bar f, Fig. 3, in which the recesses have bevelled sides. The bar is severed by the rotary knife d and the pieces delivered laterally by the reciprocating pusher e to a wrapping machine for making up into rectangular box-shaped packages. The receiving table c may tilt as described in Specification 392,990 to avoid interference between the pusher and the advancing stream of material being fed forward for the succeeding cut.