baber/WOPTO huggingface dataset:
Patent GB-1426078-A (GB)
Title: Filter arrangements for use in frequency division multiplex  equipment
IPC: H04J1/04
Filed: 1973-03-02
Abstract: 1426078 Modulating filter arrangements TELEFONAKTIEBOLAGET L M ERICSSON 2 March 1973 [7 March 1972] 10388/73 Heading H4R A filter arrangement, e.g. for frequency division multiplex of speech t, comprises adjacent bandpass filters BP1-BP3 passing one sideband of a respective carrier modulation MOD2 and connected directly to a point P to which is directly connected a further bandpass filter BP4 encompassing the range of filter BP1-BP3, the filters being such that the geometric means of the neighbouring cut off frequencies of adjacent filters coincides with the resonance frequencies of the filter configuration. The direct connection 9 enables signals rejected by one filter to leak through the others, to effectively increase the attenuation of each filter outside its band. Each filter BP1-BP3 has a capacitive character below and an inductive character above its passband whereas BP4 is the converse.  Speech t at 0À3-3À4 kHz is low pass filtered LP2 and modulated MOD2 on to respective carriers at 24, 28 and 32 kHz in the three channels shown. The upper sidebands are selected by BP1-BP3. The outputs of four such arrangements modulate respective carriers at 96, 108, 120 and 132 kHz in balanced modulators such as MOD to form a 12-group covering 60-108 kHz. A signalling frequency S at 3À825 or 2À4 kHz is modulated on to the respective channel carrier then on to a 25 Hz carrier and inductively coupled to that channel for inclusion in the 12-group. The frequency is extracted at the receiver by a parallel circuit resonant at an attenuation peak in the BPF of that channel.
Patent GB-365892-A (GB)
Title: An improved method for the production of hydrocarbon oils from solid carbonaceous material by destructive hydrogenation
IPC: C10G1/00
Filed: 1931-04-09
Abstract: Hydrocarbon oils are produced by passing a suspension in oil of solid carbonaceous material, the particles of which are capable of passing a 100 mesh screen, together with hydrogen through a reaction zone packed with solid catalyst in lump form, under pressure above 20 atmospheres.  The solid particles are sufficiently fine to remain in suspension for long periods, and may be colloidal.  The oil is preferably that obtained in the process.  The suspension may be heated to 650 DEG  F. in a coil and then passed into a catalyst chamber which is maintained at 700-850 DEG  F. by the heat of reaction.  Suitable catalysts are the oxides of chromium, tungsten, and molybdenum, with or without zinc, aluminium, or magnesium oxides. The vapours are condensed and the hydrogen recirculated in known manner.  Heavy oil and ash are withdrawn and separated, the oil being returned for preparing the suspension.
Patent GB-822696-A (GB)
Title: Novel nicotinoyl-hydrazine derivatives and a process for the manufacture thereof
IPC: C07D213/82
Filed: 1958-04-01
Abstract: The invention comprises compounds of the general formula <FORM:0822696/IV (a)/1> and acid addition salts thereof, wherein R1 stands for a saturated non-aromatic hydrocarbon group containing 2-7 carbon atoms and the broken line denotes that the methyl group is optional, and the preparation thereof by either condensing an acid of the formula <FORM:0822696/IV (a)/2> or a salt thereof with an organic base (in the presence of a carbodiimide) or a reactive derivative thereof with a substituted hydrazine of the formula R1-NH-NH2 or reacting a nicotinic acid hydrazide of the formula <FORM:0822696/IV (a)/3> with a carbonyl compound containing 2-7 carbon atoms, simultaneously or successively hydrogenating the resulting hydrazone and in either case, if desired, transforming the product (if a base) into an acid addition salt or (if an acid addition salt) into the base.  It is further disclosed in the Specification that the hydrazone formed in the alternative process above may be reacted with a Grignard reagent and the product hydrolysed to form a hydrazine. N,N1 - Disubstituted - carbodiimides (e.g. N,N1-dicylohexylcarbodiimide) used in the condensation reaction may be prepared by treating an appropriately di-substituted-urea with p-toluenesulphochloride in piperidine.
Patent GB-1410283-A (GB)
Title: Apparatus for detecting fluid borne particles
IPC: G01N21/25
Filed: 1973-03-05
Abstract: 1410283 Photo-electric particle detectors ELECTRO SIGNAL LAB Inc 5 March 1973 [3 March 1972] 10526/73 Heading G1A Apparatus for detecting fluid borne particles, e.g. a smoke detector, includes a dark chamber 6 whose walls are transmissive of fluid borne particles, a plurality of solid state lamps 22, e.g. l.e.d.'s, mounted in an elongate array and electrically connected in series, a first elongate cylindrical lens 30 disposed parallel to the lamp array for projecting a ribbon of light into the chamber, a bar-shaped photo-detector 26 having a single photo-conductive surface of substantially the same length as the  array of lamps and mounted parallel to the lamp array, a second cylindrical lens 31 disposed parallel to the photo-detector between the photo-detector and the chamber so as to view the chamber on a ribbon-like path having a substantially linear intersection with the ribbon of light, the photo-detector being responsive to light modulated by particles at the intersection, and means for detecting the response of the photo-detector to the modulated light. As shown the apparatus includes a base 2 of wood or plastics supporting the lamp array and the detector, and a wall 3 e.g. of polyurethane foam. The lamps 22 are arranged in series on a phenolic base 21, Figs.4 and 5 (not shown). The detector 26, Fig.3 (not shown), consists of two electrode areas connected to output terminals 28 and separated by a zig-zag photo-conductive surface. As shown in Fig.6, the diodes 22 are connected to a single constant current source and the output terminals 28 are connected to a circuit 32 for providing an alarm.
Patent GB-105501-A (GB)
IPC: A24F5/04
Abstract: 105,501. Macilwraith, W. Sept. 6, 1916. Tobacco pipes.-In order to cool the pipe upward, air passages c are formed in the bowl a and terminate at or near the top, which may be countersunk or recessed.
Patent GB-734844-A (GB)
Title: Improvements in or relating to reciprocatory mechanism suitable for straight bar knitting machines
Inventor: START ERNEST
IPC: D04B15/64
Filed: 1952-04-28
Abstract: 734,844. Linkwork. COTTON, Ltd., W. July 24, 1953 [April 28, 1952], No. 10580/52. Class 80 (3). [Also in Group VIII] The drive for the carrier bars of a straight-bar knitting-machine is derived from a bar 1 and is transmitted to them through a device comprising two members 11, 12 having ramps 9, 10 pressed by spring 13 into engagement with corresponding surfaces 7, 8 on the bar 1. If through mechanical failure the carrier bars are unable to move, relative axial movement takes place between the bar 1 and the device. When only slight relative axial movement occurs the bar 1 and the device resume their normal positions, upon removal of the cause of the movement, under influence of spring 13.
Patent GB-815501-A (GB)
Title: Improvements in or relating to gear pumps
Inventor: BOOTH DOUGLAS GERHARD
IPC: F04C2/14
Filed: 1954-04-12
Abstract: 815,501. Gear pumps. PLESSEY CO. Ltd. May 9, 1955 [April 12, 1954], No. 10663/54. Class 110 (2). The gears of a gear pump are flanked by fluidpressure loaded side plates 14 and are journalled in bearing bushes 9 which are held against rotation by keys 12 fitted into slots formed in plates 11. Each chamber A is divided into two chambers 15, 16 by a reinforced flexible ring 19 which is supported by plates, see Fig. 3 (not shown). Low- and high-pressure fluid is fed to the chambers 16, 15, through ports formed in the supporting plates, each side plate 14 being suitably apertured for the passing of said fluid, see Fig. 5 (not shown). Each plate 11 is also provided with a groove for feeding low-pressure fluid to the helical groove 24 in the bushes 9. In a modification, Fig. 6 (not shown), the plates 11 are dispersed with the bushes 9 being received in bores formed in the end covers and keyed thereto. Specifications 815,503, 815,504 and 815,505 are referred to.
Patent GB-690661-A (GB)
Title: A device for dispensing weighed portions of cement
IPC: G01G13/02
Filed: 1951-05-07
Abstract: 690,661. Automatic feed weighers. CARLSEN, H. W. May 7, 1951 [May 10, 1950]. No. 10734/51. Class 143. [Also in Group XXX]. In a portable automatic feed weigher in which cement is fed from a hopper 1 to a weighing receptacle 16 along a screw conveyer 5, a swivel coupling 9 allows the conveyer to be swung manually in a horizontal plane. During transit of the apparatus a link 23 is coupled to a lug 24 on the conveyer, a valve 25 at the base of the hopper is closed, and the coupling 9 is broken so allowing the conveyer to occupy an upright position adjacent the hopper. Each weighing scale is initiated by manual operation of a switch 22 which causes the motor to drive the conveyer until a predetermined weight of material has accumulated in the receptacle, after which the beam 10 tilts and operates a switch 21 which de-energizes the motor. The receptacle is mounted on the beam for universal movement by a swivel 13 and trunnions 15; discharge being effected by manual operation of a wheel 17. A part cylindrical plate 18 shrouds the top of the receptacle during weighing. In a modification (not shown) the conveyer is urged into a pre-set position against a buffer by a counterweighted cable.
Patent GB-987671-A (GB)
Title: Particle classifier and method of classifying particles
IPC: B07B4/02
Filed: 1964-03-13
Abstract: 987,671. Pneumatic separators. R. E. MANLEY. March 13, 1964 [April 15, 1963], No. 10796/64. Heading B2H. Particles are classified by dropping them from a hopper 76, Fig. 3, in a stream 68 where they are separated by a transverse air current into collectors 92 from which they drop in adjacent streams, in the order in which collected, for further separation into fractions by a transverse air current and collection by second collecting means 94. As shown, the particles are classified in four successive stages. Sand extracted by a pump 24 from a quarry 10, Fig. 1, is delivered as a slurry to a washer and drier 26 before being elevated by a conveyer 28 to a hopper 32 which, as shown in Fig. 2, is divided into compartments each fitted with an outlet pipe 46 and valve 44 for feeding its associated classifying cell 34 below. As shown in Fig. 3, each cell is arranged to discharge the sand via a flap valve 84 into contact with the air stream which is drawn through the cell by a fan 197. Each cell is subdivided into superposed classifying compartments 68, 70, 72, 74, constituting the successive pneumatic classifying stages by the corresponding collectors which are in the form of separate shoots with discharge outlets to provide the separate streams; the angle of inclination of the shoots is such that the particles roll, rather than slide, downwardly. The finer particles which are entrained by the air stream are separated-out by closelyspaced baffle-plates 180 which are inclined in both an upward and lateral direction for directing the particles into a collecting duct 176; the air is directed through dampers 182, 184, 186 and discharged through a pipe 212 to atmosphere or a dust extractor. Disposed below the final stage collectors 98, are ducts which are provided with sloping bottom surfaces 179 for directing the fractions to silos 100c-114c and 176a. The air entering the cells may be heated and the cells may be operated under pressure rather than suction.
Patent GB-448293-A (GB)
Title: New and improved ceramic like articles and process of manufacturing same
IPC: C03C4/00
Filed: 1935-04-08
Abstract: 448,293. Glass manufacture. NAAMLOOZE VENNOOTSCHAP MAATSCHAPPIJ TOT BEHEER EN EXPLOITATIE VAN OCTROOIEN, 57, Zeekant, The Hague. April 8, 1935, No. 10820. Convention date, April 11, 1934. Addition to 428,329. [Class 56] The ceramic-like articles made by the process described in .the parent Specification are sintered to increase their strength and density. Specification 442,526 is referred to.
Patent GB-629028-A (GB)
Title: Improvements in or relating to bearings
IPC: F01D25/16
Filed: 1947-04-23
Abstract: 629,028. Bearings. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. April 23, 1947, No. 10836. Convention date, April 26, 1946. [Class 12 (i)] An emergency bearing for operation in the event of failure of a main bearing 41 comprises a wear-ring 61 surrounding a corresponding emergency bearing surface 71 on a shaft 26 and a cylindrical member 72 carried by the wearring formed on its inner surface with a plurality of annular grooves forming together with a surface 76 of the shaft 26, a labyrinth seal for the main bearing 41. The ring 61 is provided with a plurality of radial passages 78 communicating through passages 79 with oil supply lines 81. Oil is supplied to the bearing 41 through openings 82 in the inner ends of the radial passages 78. In a modification, the labyrinth seal is adjacent the wear-ring and integral therewith. The invention is described as applied to a gas-turbine power plant.
Patent GB-949583-A (GB)
Title: Row crop sprayer
Inventor: PALMER JOHN ELMOUR
IPC: A01M7/00
Filed: 1961-03-27
Abstract: 949,583. Crop sprayers. GOLDEN ARROW MANUFACTURING CO. Ltd. June 12, 1962 [March 27, 1961], No. 11026/61. Heading B2F. A row crop sprayer comprises a wheeled vehicle 10 across which a transverse beam 14 is secured ; at least one boom 23 pivoted at its inner end 24 to one end of the main beam ; means 17, 18, 19, 20 whereby the boom is mounted for pivotal movement in a vertical plane ; means 18, 22, 25 whereby the boom is mounted for movement in a horizontal plane and means 37 whereby the boom is locked against horizontal movement when raised; drop pipes 46 situated along the main frame and boom, adjustable vertically and laterally and carrying spray nozzles 47 ; hose piping 55 connecting the drop pipes with a pump (not shown) and a selector valve 56 adapted to control the route of the spray fluid. 17 is a post projecting upwards from the end of the main beam, 14, and 18 is a tube projecting upwards from the end 24 of the boom and having a bracket 19 with a pin 20 pivoting its end to the post 17. 22 is a king pin which passes through the tube 18 and 25 is a clevis through which the end of the boom 23 is secured to the lower end of the king pin. One plate 30 of a spring-loaded ratchet clutch 29 is fixed to the upper end of the tube 18 and the other plate 28 is fixed to a member from which torsion rods 26 extend to a point part way along the boom 23. Normally the boom can be moved in the horizontal plane, but when it is pivoted upwards by the action of hydraulic components 35, 36 the locking means 37 come into play. These comprise an angled bar 38 pivoted to the tube 18 at 40 and kept away from it, when the boom is horizontal, by the engagement of a pin 43, projecting from the post 17, with a projection 44 from the end of the bar. As the boom rises, turning about the pivot 20, the end of the bar 38 leaves the pin 43 and a spring 42 turns it about a pivot 40 and causes a U- formation at its upper end to clamp the clutch plates 28, 30 together. The boom is steadied in the spraying position by the engagement of a U-bracket 45 on the tube 18 with the main beam 14. Spray fluid from the pump enters a chamber 58 in the valve 56 through an inlet 57, Fig. 6, and is directed to the required drop pipes through ports 60. 60<SP>1</SP>, 60<SP>11</SP> controlled by valves 59, 59<SP>1</SP>, 59<SP>11</SP>. Excess fluid pressure opens a relief valve 61 and surplus fluid is then bypassed through a port 62 back to the storage tank. The same fluid is used for the hydraulic operation. When a valve 67 is operated, fluid from the chamber 58 passes through a duct 63 and leaves by a port 74 to the hydraulic assembly 35, 36. If the pressure is excessive, it opens a spring-loaded valve 73 to by-pass some of the fluid through to port 62.
Patent GB-992324-A (GB)
Title: Improvements in or relating to filter materials
IPC: B01D39/18
Filed: 1962-03-22
Abstract: A non-inflammable filter material comprises mineral fibres, e.g. glass and asbestos, and potassium polyphosphate.  The material may also contain cellulose fibres, a flexible and non-inflammable resin, e.g. a fireproofed polyvinyl acetate, and a filter, e.g. calcium indicator.  Methods disclosed for making the material are: (1) preformed filter material comprising mineral fibres is impregnated with a dispersion of potassium polyphosphate in a dilute solution of calcium chloride, which has preferably been allowed to age; (2) preformed filter material comprising mineral fibres is impregnated with an aqueous solution of monopotassium orthophosphate, dried and heated to a temperature at which the orthophosphate is converted to polyphosphate; (3) potassium polyphosphate is introduced into an aqueous suspension of the fibres, from which suspension a filter material in sheet form is made by paper-making methods; the potassium polyphosphate may be in the form of a dispersion in a dilute solution of calcium chloride, and the fibrous supension may include an alkali metal indicate; and (4) monopotassium orthophosphate is introduced into an aqueous suspension of the fibres, a filter material in sheet form is produced from the suspension by paper-making methods, and the orthophosphate converted to polyphosphate by heat; the monopotassium orthophosphate may be in the form of an aqueous solution to which an alkali metal silicate has been added and in which fibres of cellulose are dispersed, this dispersion being added to the aqueous dispersion of mineral fibres, after which an aqueous solution of calcium chloride is added to precipitate calcium silicate.
Patent GB-711149-A (GB)
Title: Improvements in and relating to knitting machines
Inventor: LYNAM JOHN EDWARD
IPC: D04B15/66
Filed: 1951-05-11
Abstract: 711,149. Knitting-machines. COTTON, Ltd., W. April 30, 1952 [May 11, 1951], No. 11098/51. Class 74 (2) A device to stop or act to avoid damage to a machine in the event of a fault in a pattern chain, comprises a pivoted bar 8 having gates 9 through which studs 2 on the chain normally pass. Should a stud 2 be dis. placed or the chain be distorted, the bar 8 will be contacted and moved to operate the stop motion &c.
Patent GB-560295-A (GB)
Title: Improvements in or relating to cushion seats
IPC: A47C7/34
Filed: 1942-08-10
Abstract: 560,295. Seats. VARMA, D. C. Aug. 10, 1942, No. 11144. Addition to 551,617. [Class 52 (iv)] The cushion seat claimed and described in the parent Specification is modified by dividing the more yielding area located behind the central cavity D, into three separate areas D3, D<4>, D<5> respectively for receiving the coccyx and the two ischium bones. The three separate areas may consist of inserts of more yielding material but are preferably each in the form of a cavity or recess which may extend through the upper surface of the seat.
Patent GB-702513-A (GB)
Title: Improvements in and relating to sleeping bags
IPC: A47G9/00
Filed: 1952-05-02
Abstract: 702,513. Sleeping bags. COMPAGNIE LANGUEDOCIENNE INDUSTRIES MECANIQUES. May 2, 1952 [May 2, 1951; May 16, 1951], No. 11153/52. Class 133 A sleeping bag is constructed with the known padded upper layer while the under layer comprises inflatable members of narrow width with or without padding of eiderdown or the like. As shown the upper layer comprises sheets 4. 5 between which eiderdown &c. is arranged preferably in compartments formed by fabric divisions while inflatable members 3 are arranged between sheets 1, 2 to form the under layer also preferably in compartments. A hood having a draw cord arranged in the hem 11 may be provided an inflatable pillow being arranged in the hood. A removable inner bag 14<SP>1</SP>, 14<SP>2</SP> may be provided. Fig. 5 shows a method of cutting a sheet of material to form the sheets 1, 2 and 4, 5 to give a narrow foot end and a broader head end, and to avoid waste of material the sheet is cut along the line a, b one part is then reversed and the two parts brought together and stitched with the edge c, f in contact with the edge e, d.
Patent GB-927265-A (GB)
Title: Mops with water extracting means
Inventor: VOSBIKIAN PETER SAHAG
IPC: A47L13/14
Filed: 1962-03-23
Abstract: 927,265. Self-wringing mops. P. S. VOSBIKIAN, and T. S. VOSBIKIAN. March 23, 1962, No. 11157/62. Class 19. A self-wringing mop has a ring 12 adapted to be passed over the mop to wring it and having a gap 13 in the perimeter, opposite a pivot 10 which connects the ring, via a rod 7, to a slidable sleeve 5 on the handle 2, the arrangement being such that after passing over the mophead 1, the ring swings to one side before being drawn back up the handle. The handle has a bar portion 17 sufficiently narrow to pass through the gap 13 which is closed by a pivoted arm 15 actuated by a cam 18 fixed on the handle adjacent to the mophead.
Patent GB-701781-A (GB)
Title: Improvements in or relating to electrical calculating machines and the like
IPC: G06G7/16
Filed: 1948-04-22
Abstract: 701,781. Electric analogue calculating systems. MACKAY, D. M. April 20, 1949 [April 22, 1948], No. 11161/48. Class 37 In a cathode ray computing apparatus an electron beam is projected from a source through two successive systems for deflecting the beam in two angularly displaced directions and through an axial solenoid whose field rotates the beam, which falls on the C.R. tube screen and operates a device for producing a feedback signal applied to the second deflection system such as to maintain the trace undeviated from a reference line on the screen, whereby the feedback signal is analogous to the product of the input quantities represented by the respective excitations of the first deflection system and the axial solenoid. Similarly if the input quantities control the excitation of the first and second deflection systems, the feedback signal exciting the axial solenoid is analogous to the quotient. In Fig. 1 a C.R. tube 1 having X and Y plates 2 and 3 is.surrounded by an axial coil 4, and an electron stream produced by known means passes between the plates to impinge on a screen 5. A. voltage proportional to a quantity p is applied to the X plates and gives the electron stream a velocity component in the X direction so that it interacts with the axial coil field due to a current proportional to a quantity q, to develop a velocity in the Y direction proportional to pq. This deflects the screen spot from the edge of a mask 18 along the X axis and illuminates a photocell, to develop a feedback voltage which is amplified to bias the Y plates and return the spot to the mask edge, as described in Specification 607,397, [Group XIX]. The Y plate voltage is then proportional to pq. Alternatively a metal collector within the tube along the X axis develops a voltage proportional to the rate of reception of electrons thereby which is applied to the Y plates to oppose deviation of the beam from the collector. In a modification Fig. 2 (not shown), voltages proportional to p and q are respectively applied to the Y and X. plates and the Y deflection is counteracted by a feedback current, similarly developed from the deflection and proportional to p/q, which energizes the axial coil.