baber/WOPTO huggingface dataset:
Patent GB-1466280-A (GB)
Title: Temperature compensator for a crystal oscillator
IPC: H03B5/04
Filed: 1974-07-05
Abstract: 1466280 Temperature compensating crystal oscillators GENERAL ELECTRIC CO 5 July 1974 [6 Aug 1973] 29945/74 Heading H3T A temperature compensation circuit for a crystal oscillator includes separate compensation circuits for middle high and low temperature ranges, each of the latter two including means for inhibiting the other. Oscillator 23 uses a double gate FET and compensation is obtained over the middle temperature range by means of a capacitor C7 whose capacity varies inversely with temperature. Shunting the oscillator circuit is a varactor diode VSC which is maintained at a constant value over this range by means of the bias derived from resistors R6, R7. At low temperatures it derives a variable bias from cold range circuit 21 which comprises a transistor Q1 biased to pass a constant current by means of the network comprising resistors R1, R2 and diode D1. Consequently the collector voltage across resistors R4, TSR1 and TSR2, in which resistors TSR1 and TSR2 have a resistance inversely proportional to temperature, increases with respect to fall in temperature and this is applied to varactor diode VSC via emitter-follower Q2. The resulting rise in voltage across resistor R5 biases transistor Q3 conductive. At high temperatures, varactor diode VSC derives a variable bias from hot range circuit 22: this comprises a potentiometer network R8, R9, TSR3 in which TSR3 has a resistance inversely proportional to temperature, so that as the temperature rises the bias on emitter-follower Q4 decreases and this fall in voltage is applied to varactor diode VSC. The corresponding increase in collector current in emitter-follower Q4 biases transistor Q5 conductive whereby the base bias of transistor Q2 is removed and the cold range circuit 21 rendered ineffective. When, however, the cold range circuit 21 comes into operation transistor Q3 is rendered conductive and cuts off transistor Q4 rendering the hot range circuit 22 ineffective.
Patent GB-1044540-A (GB)
Title: Hydrocarbon conversion process and catalyst
IPC: B01J23/888
Filed: 1963-07-29
Abstract: Gasoline and middle distillates are produced from a feed boiling at from 200 DEG  to 1100 DEG  F. or petroleum residua boiling above 500 DEG  F. by contacting the feed or residue and from 1000 to 10,000 SCF of hydrogen per barrel at a temperature of 500-950 DEG  F., a pressure of more than 500 p.s.i.g. and an L.H.S.V. of 0.1 to 4.0 with a catalyst comprising at least one hydrogenation component selected from tungsten and compounds of tungsten and at least one hydrogenation component selected from the Group VIII metals and compounds of Group VIII metals on a SiO2-MgO support.ALSO:A hydrocracking catalyst comprises tungsten metal or a compound thereof forming 1-40% of catalyst at least one metal or compound of Group VIII forming 1-20% of catalyst and a SiO2-Mgo support.  Specified Group VIII metals are Fe, Co, Ni, Pt, and Pd. Preferably such metals are present as sulphides.  The catalysts may have surface areas of the order of 237 sq. m./gm.  Examples are given in which the efficacy of the catalysts is compared with those of the prior art.
Patent GB-1484521-A (GB)
Title: Nickel-chromium-cobalt alloys
IPC: C22F1/10
Filed: 1975-07-17
Abstract: 1484521 Mi-Co-Cr alloys INCO EUROPE Ltd 14 July 1976 [17 July 1975] 30043/75 Addition to 1367661 Heading C7A An alloy suitable for use in gas turbine blade applications in either cast or wrought form contains Ni balance, at least 30% plus impurities. The alloys should be heat-treated to develop the full S/R properties and a suitable treatment is ST 1-20 hours at 1100-1250C followed by ageing 1-48 hours at 600-950C. A preferred treatment is 2-16 hours at 1120-1200C A.C; followed by heating 2-10 hours at 970-1030C, A.C. followed by 8-48 hours at 870-930C, A.C. and then ageing 8-48 hours at 600-800C and A.C.
Patent GB-748471-A (GB)
Title: Improvements in or relating to shock absorbers
Inventor: CLOUDSLEY JOHN LESLIE
IPC: F16F9/18
Filed: 1953-10-30
Abstract: 748,471. Hydraulic shock absorbers. TANCHESTER PROPERTIES, Ltd. Nov. 1, 1954 [Oct. 30, 1953], No. 30063/53. Class 108 (3). In a telescopic hydraulic shock absorber of the kind comprising a reservoir 6 concentrically surrounding the working cylinder 5, the piston-rod 4 extends upwards through the lower end of the cylinder 5, which communicates with the reservoir 6 through a discharge opening 21 at its upper end, a duct 22 being provided inside the e reservoir 6 between the opening 21 and the liquid in the reservoir. The lower end of the sleeve 22 may be castellated (Fig. 4, not shown). In operation, the sleeve 22 remains covered with liquid under normal operating conditions. According to the Provisional Specification, there may be baffles disposed within the reservoir between the outer casing 6 and the sleeve 22.
Patent GB-895610-A (GB)
Title: Improvements in magnetic recorders
Filed: 1960-09-01
Abstract: 895,610. Controlling magnetic recorders. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 1, 1960 [Sept. 4, 1959], No. 30188/60. Class 40 (2). In a magnetic recorder a slidable trick switch 10 for superimposed recordings is interlocked with the on-off switch for the record function so that the trick switch cannot be operated until the record switch is " on," and when the latter is turned " off " the trick switch is turned " off." For recording, the key-operated record switch rod 1 is moved in the direction 2 until locked by a spring-biased plate 4 thereby removing a sleeve 9 on a Bowden cable or other linkage 7 from the operating portion 11 of the trick switch 10 which may then be moved to the left to the " on " position. When the record switch is moved to the "off" position shown, the sleeve 9 switches the trick switch "off."
Patent GB-993495-A (GB)
Title: Improved process and apparatus for cleaning cotton fibrous webs
Inventor: BENYON JOHN
IPC: D01G15/94
Filed: 1962-08-07
Abstract: 993, 495. Removing foreign matter from fibre webs; drafting apparatus. T. M. M. (RESEARCH) Ltd. Nov. 1, 1963 [Aug. 7, 1962], No. 30256/62. Headings DID and DIN. Vegetable impurities are removed from cotton fibres by drafting carded slivers side by side so forming them into a web, applying pressure to the web to crush the impurities, and condensing the web to form a sliver. The drafting apparatus preferably consists of three pairs of rollers with a pressure bar CD arranged in the second drafting zone for the slivers to pass under. The web E of drafted fibres is passed at full width to the smooth, metal-surfaced pressure rollers F1, F2 and is afterwards condensed at the guide G. In another form of the apparatus, the pressure rollers may effect the draft and may constitute the last pair of drafting rollers. The top pressure roller F1 is mounted at one end in a bearing that is pivoted and at the other in a bearing that has a rectangular terminal portion which mates with a slot in the frame of the machine. This roller incorporates magnets for increasing the pressure between the rollers. In addition, loading springs may be employed.
Patent GB-399328-A (GB)
Title: Improvements in and relating to pile-driving apparatus
IPC: E02D7/18
Filed: 1932-10-28
Abstract: 399,328. Pile-drivers. MAIER, (nÚe MEZGER), E., 59B, Schlosstrasse, Stuttgart, Germany. Oct. 28, 1932, No. 30309. [Class 68 (ii).] A device for ramming piles or the like comprises a vertically vibrating mass resting on the pile &c., and operated by a motor and flywheel-like mass. Fig.. 1 shows a rammer comprising a motor a and a flywheel mass d on a shaft c with a pinion e driving bevel wheels f, g on an axle h. The bosses of the wheels f, g are fitted with cams i, k which operate on rollers m fitted in a plunger o resting on a pile p. As they rotate the cams i, k lift all the masses in and on the casing b, and increase the pressure on the pile p. Vertical guide flanges are made on the casing b. In a modification, Fig. 4, the wheels e, f, g are replaced by a horizontally-rotating wheel u with face cams s, t bearing on rollers m in the plunger o. The motor a may be replaced by one fitted inside the carrier or inside the mass d.
Patent GB-388484-A (GB)
Title: Improvements in or relating to two-axle bogies for automobiles
IPC: B60G5/047
Filed: 1931-11-02
Abstract: 388,484. Vehiclesuspension systems. MÍHL, S., 33, Amaliegade, Copenhagen. Nov. 2, 1931, No. 30325. [Class 108 (ii).] In means for increasing the adhesion load on the driving axle during acceleration and/or ascending a hill the foremost axle 2 of a twoaxle bogie for motor vehicles is provided with driving wheels and is carried by semi-elliptic springs rigidly secured near their centres to the axle 2 and connected at their rear ends by levers 5, Fig. 1, 5<1>, Fig. 2, to either the rear axle or to semi-elliptic springs carrying this axle. The driving-wheel axle may be of the fixed type and the rear wheels may be carried on stub axles. Specifications 212,299 and 271,787, [both in Class 108 (ii), Road vehicles, Undercarriage details &c. for], are referred to.
Patent GB-1128199-A (GB)
Title: Improvements in or relating to a method of fastening elements on containers and apparatus therefor
IPC: B21D51/24
Filed: 1967-06-30
Abstract: 1,128,199. Making hollow-ware. ETABS. J. J. CARNAUD & FORGES DE BASSEINDRE. 30 June, 1967 [1 July, 1966], No. 30365/67. Headings B3A and B3Q. A method of securing a valve &c. 14 on the inside or outside of a pressure vessel 11 for fuel gas or an aerosol &c. comprises forming a lip 15 on the element 14, forming an inward or outward depression 22 in the vessel in a single stamping or deep drawing operation, placing the lip 15 in the depression 22 and squashing the depression until its bottom surface is level with the vessel so that the side wall of the depression forms a crimping bead 23A, Fig. 7, around the lip 15. As shown, Fig. 3, the vessel and depression 22 are formed at the same time, by deep drawing dies 17, 18, 19. The internal die 25 for supporting the vessel during the crimping stage, has a recess 29 holding the element 14 and an annular recess 30 in which the bead 23A is formed. Sealing material may be used in the seam, and the element may be fixed to the exterior of the vessel, Fig. 8 (not shown).
Patent GB-1194364-A (GB)
Title: A Fluid Actuated Reciprocating Motor.
Inventor: HARKLAU CARROLL DEAN
IPC: F04B9/115
Filed: 1967-06-30
Abstract: 1,194,364. Reciprocating motors, pumps and compressors. A.W. VAUDT. June 30, 1967. No. 30397/67. Headings F1A and F1N. A fluid actuated reciprocating motor, preferably for operating pump pistons 24, comprises a housing 12, a valve body 14 having a fluid inlet port 48 and a fluid outlet port 56, a shaft 22 movable relative to and passing through the valve body 14, pistons 26 disposed on each side of the valve body to form a first and a second chamber 32, 34, first and second valve elements 58, 70 movable within the valve body, and first and second spring means 68, 98 arranged between each piston 26 and the said elements 58, 70, the second spring means 98 being stronger than the first spring means 68. The valve elements 58, 70 are provided with three symmetrical arcuate grooves (64) Fig.3 (not shown). Each motor piston 26 is connected by a sleeve 28 to a pump piston 24 working in a pump chamber 36, 38 with inlet and exhaust valves 78, 80. Intermediate chambers 39, 40 have exhaust openings 82, 84. Spring assemblies 86 have cavities 90 to receive the first and second spring means 68, 98. The outer ends of the springs 98 are adapted to be engaged by a washer element 100 mounted on the face of the piston 26. In operation hydraulic working fluid enters the inlet opening 48 and into the left chamber 32 via the valve element 58. The piston 26 is forced to the left accordingly and thereby discharges pumped fluid from the chamber 36 through the outlet valve 80. At the same time working fluid from chamber 34 is forced through outlet 56 via the valve element 70 until the pistons are in the extreme left position when sufficient pressure is exerted on the valve elements 58, 70 through the springs 98, 68 to move these elements to the extreme left position. The working fluid then entering the inlet 48 will pass into the chamber 34 and fluid from chamber 32 will be forced out through the outlet 56, thus setting up a cycle. The shaft 22 and the pistons 24, 26 are free to rotate thus distributing any wear in the system over a large area. In a modification Fig. 1 (not shown) a piston 26A is provided with a plurality of spring cavities (200) which contain diametrically opposed weaker springs (202) which are longer than the adjacent stronger springs (204).
Patent GB-1011344-A (GB)
Title: Improvements in or relating to polish
IPC: C09G1/14
Filed: 1963-07-31
Abstract: A furniture polish comprises turpentine, linseed oil, paraffin oil, and acetic acid.  The linseed oil may be boiled linseed oil. The acetic acid is preferably used in the form of vinegar, especially malt vinegar.
Patent GB-669033-A (GB)
Title: Improvements in electric discharge lamps having a gas filling
IPC: H01J61/28
Filed: 1947-11-17
Abstract: 669,033. Discharge lamps. GENERAL ELECTRIC CO., Ltd., and NELSON, E. H. Oct. 26, 1948 [Nov. 17, 1947], No. 30453/47. Class 39 (i). An electric discharge lamp of the type having a gas filling consisting wholly or mainly of one or more permanent gases, such as xenon, and developing in normal operation a pressure exceeding one atmosphere, includes within the envelope a quantity of a substance such as charcoal which is capable of absorbing an amount of the gas filling sufficient to reduce the pressure to below atmospheric pressure at room temperature, and which releases the absorbed gas on being heated by the discharge during operation of the lamp. The drawing shows a lamp comprising a substantially spherical quartz envelope 1, a tungsten rod cathode 2 provided with an activated tungsten starting coil held in a recess in the rod by a coil 3 and a tungsten rod anode 4 terminating in a cylindrical tunsten block 5. The anode rod 4 carries a hollow cylinder 6 of perforated molybdenum sheet, fitted with end plates 7, 8 of a refractory insulating material such as zirconia, and packed with granules of activated charcoal. The gas filling consists of sufficient xenon to give an operating pressure of about 10 atmospheres and a pressure of about 2 atmospheres at a room temperature of 18‹ C. in the absence of the charcoal, together with a small quantity, e.g. 10 mms. of argon. The argon, which is not absorbed by the charcoal, ensures starting if all the xenon is absorbed. The charcoal is replaced by palladium if the xenon is replaced by hydrogen. Specification 313,292, [Class 39 (i)] is referred to.
Patent GB-937270-A (GB)
Title: Swivelling nozzles, e.g. for gas turbine engines
Inventor: WILDE GEOFFREY LIGHT
IPC: B64C9/38
Filed: 1961-08-23
Abstract: 937,270. Aircraft jet propulsion plant. ROLLS-ROYCE Ltd. Aug. 16, 1962 [Aug. 23, 1961], No. 30461/61. Class 4. A swivelling jet propulsion nozzle comprises a casing 11 and first nozzle member 12 pivoted together about an axis passing through the centre of curvature of co-operating part spherical surfaces 15, 16 on the casing and member 12, and a second nozzle member 13 pivoted to the first member 12 about an axis passing through the centre of curvature of co-operating part spherical surfaces 16, 17 on the two nozzle members. In the Figure, the two axes are colinear at 18, and the casing 11 is itself pivotable about the same axis. The casing is joined to the outlet 10 of a gas turbine engine or a turbo-fan. The two nozzles members are tiltable in the same sense by linkwork 21, 24, 26 operable by a hydraulic jack 20, and this apparatus may be duplicated on the other side of the nozzle. Specification 888,943 is referred to.
Patent GB-217845-A (GB)
Title: Improvements in or relating to keyless permutation locks
IPC: E05B37/02
Filed: 1923-12-05
Abstract: 217,845. Horn, R. Dec. 5, 1923. No Patent granted (Sealing fee not paid). Locks, permutation; sliding bolts.-The handle spindle carries a two-armed lever blocked to prevent rotation to allow a two-armed follower at right-angles to it to operate the bolt, by a lever governed by permutation discs The bolt 1 has a bifurcated tail and in the slot 2 between the furcations 12, 13, a projection 3 on a lever 4 pivoted at 5 rests. On the upper side of the lever a projection 26 abuts on discs 11. When the discs are set to align notches 27 with the projection 26, the handle 23 can be turned causing the lever 24 to abut in the member 3 and lift the lever 4 so that the projection 26 enters the notches, and the lever 24 slips under the member 3. During this movement, one end of the follower 25 engages the arm 18 of the lever pivoted at 17, rocking its other arm 15 to free a projection 16 thereon from a projection 14 on the bolt tail furcation 12, while the other arm of the follower 25 engages talons 20 in the furcation 13 to operate the bolt. The pivot 5 of the lever 4 slides in a slot 9 in the casing and has an outer knob. By sliding the pivot to the other end of the slot by the knob 8 and engaging this knob with the pins 10, the lever 4 is put out of action and the device can operate as an ordinary bolt. The setting members of the discs 11 are toothed and engage a pawl for changing the. combination.
Patent GB-454055-A (GB)
Title: Improvements in or relating to automatic block protection for railways by means of axle counting mechanism
IPC: B61L1/16
Filed: 1935-11-05
Abstract: 454,055. Railway signalling systems. VEREINIGTE EISENBAHN - SIGNALWERKE GES., Blockwerk, Siemensstadt, Berlin. Nov. 5, 1935, No. 30605. Convention date, Sept. 28. Addition to 424,909. [Class 105] The signalling system of the parent Specification with signals controlled by axlecounting mechanism and in which the entrance of a train puts a signal to danger independently of the axle-counting mechanism, is modified so that the line circuits to the counting mechanisms are normally energized circuits and thus on any failure the danger signal appears immediately, and additionally the operation of the counting-out mechanism requires the next signal to have gone to danger. The system shown corresponds to that shown in Fig. 2 of the parent Specification and normally operates in the same manner. In order to provide the normally closed circuit for the rearward counting-out magnet 26 a contact 93 is provided ; this contact is closed when the relay 90 is energized by the counting mechanism 35 having counted-out the same number of axles as were counted-in. The entrance of a train into section 3 from section 2 will open the contact 93 by the counting-in at treadle 61 but a contact 81 will already have been closed by reason of the danger signal 63 and its light relay 80 being energized due to the dropping of the contact 73 of the relay 70 provided for the independent operation of the danger signal 63. The closed contact 81 allows the pulses arising at the treadle 61 to operate the rearward counting- out magnet 26.
Patent GB-1322834-A (GB)
Title: Process for preparing silica aquasols
IPC: C01B33/146
Filed: 1971-07-01
Abstract: 1322834 Silica sols MONSANTO CO 1 July 1971 [2 July 1970] 30901/71 Heading C1A A stable alkaline silica aquasol containing 19-36% SiO 2  and having a pH of 8À8 to 10À5 and an average SiO 2  particle diameter of 5-10 millimicrons is prepared by (1) gradually adding an acidic silica aquasol or hydro-organosol (i.e. an aquasol containing a water-miscible organic liquid) having a pH below 4, a particle diameter less than 2 millimicrons and 2-14% by weight of SiO 2  to a dilute aqueous alkali metal silicate solution having a silica concentration of 1 to 7 weight per cent, sufficient alkali metal oxide to provide a pH of 8À8 to 10À5 in the aquasol product and an initial temperature of 25 to 35 C. the addition taking place over a period from 4 to 8 hours such that not more than 25% of the acidic sol is added over a temperature range of 25 to 50 C., at least 7 to 30% being added while maintaining the temperature within 50 to 90 C., any balance being added while maintaining the temperature within 70 to 100 C., and then (2) concentrating to give the desired product. Alkali metal silicates specified include sodium and potassium silicates having an SiO 2  : M 2 O ratio of 1 : 1 to 3À6 : 1. Suitable acidic silica sols include aquasols produced by passing water glass through a column of acid activated cation exchange material in the hydrogen form, the resultant sol having a pH of from 2 to 3À5. Such sols may be concentrated to a silica concentration as high as 15% silica. The hydro-organosols may be prepared by adding a water-miscible organic liquid, e.g ethanol to an acidic aquasol, and such sols have a pH of 2À5 to 3 and an SiO 2  content of 5 to 12À5%. Other organic liquids which may be used include methanol, isopropanol, tertiary butyl alcohol, acetone and methyl ethyl ketone. The final concentration of the sol results in a product of from 19 to 36% by weight of SiO 2 .
Patent GB-889788-A (GB)
Title: Random-access data storage and transducing unit
IPC: G06K17/00
Filed: 1960-09-08
Abstract: 889,788. Magnetic record-card apparatus. NATIONAL CASH REGISTER CO. Sept. 8, 1960 [March 1, 1960], No. 30968/60. Class 106 (1). A selected strip falls from a magazine in a random-access store and is fed past recording and/or reading means. After at least one passage past the recording and/or reading means the strip is returned to the magazine. A stack of strips with the top edges profiled, Figs. 12a, 13, according to the binary code is retained in the magazine by selector rods 30b0-30b7 and also by retaining rods 30t, 30u. Selection of a strip is effected by rotating the appropriate selector rods and then the retaining rods. The chosen strip falls and is carried by a continuously - rotating perforated capstan 40a past transducers 60. The strip makes one or more revolutions depending on the position of gate 70. Gate 70 is controlled by external circuits and at the appropriate time directs the strip into guideway 85. The strip affects photo-electric detection apparatus which controls a device for returning it to the magazine. An air stream maintains the strips separate in the magazine and holds a strip against the capstan except for passage past the transducers. The air supply is cut-off during strip selection and return. The strips may be of polymer film with a magnetic coating.