baber/WOPTO huggingface dataset:
Patent GB-1137336-A (GB)
Title: Lubricant dirt separator
IPC: F16N39/00
Filed: 1967-06-30
Abstract: 1,137,336. Rotary pumps and motors. DANFOSS A.S. June 30, 1967 [July 19, 1966], No.30323/67. Heading F1F. [Also in Division B2] In a hydraulic gear wheel machine, e.g. a motor as shown, a gear ring 6 is connected by screws 4 to one end of a casing 1 which has an inlet 8 for supply of hydraulic oil 9 and an outlet for the discharged oil 10. Gear ring 6 meshes with a gear 11 having both rotational and orbital movement and connected to an articulated shaft 13 which engages a rotary slide member 14 positively connected to a main shaft 12. Circumferential grooves 15, 16 in the member 14 communicate respectively with the oil inlet and outlet and with axial grooves 17, 18 which correspond to the number of teeth of the gear 11. Orifices 19 in the casing 1 communicate via ducts 20 with the gaps between adjacent teeth of gearing ring 6. Thus the positive displacement cells 21 between the teeth of gear ring 6 and those of the gear 11 are alternately connected to the inlet 8 and to the outlet for discharged oil 10 in such a way as to allow continuous rotation of the rotor. Conversely, if power is applied to shaft 12, the machine works as a pump. Leakage oil from grooves 15, 17 and cells 21 enter cavity 23 in slide 14, flows through a centrifugal-magnetic oil separator 24 (see Division B2) and thence through ducts 25 to a shaft bearing 22.
Patent GB-300981-A (GB)
Title: Machine for centrifugal casting of concrete hollow sleepers
IPC: B28B1/20
Filed: 1928-10-22
Abstract: 300,981. Righetto, M. Nov. 22, 1927, [Convention date]. Centrifugal machines. - Reinforced concrete sleepers are cast in stamped sheet-metal moulds 14 divided longitudinally and enclosed in a counter-mould 13 also divided longitudinally into two or more parts, the mould 13 engaging mould 14 with the whole of its surface and sliding within ribs 12 forming part of the rotating cage 10. The mould 13 is retained within the ribs by blocks 16 secured on a rod 17 and provided with inclined lateral wings 16<1> engaging inclined slots in the ribs.
Patent GB-979861-A (GB)
Title: Improvements in or relating to frequency synthesisers
Inventor: TOMLINSON TERENCE BERNARD
IPC: H03L7/22
Filed: 1960-09-06
Abstract: 979,861. Automatic frequency control systems; frequency changing circuits. RACAL ELECTRONICS Ltd. Aug. 28, 1961 [Sept. 6, 1960], No. 30654/60. Drawings to Specification. Headings H3A and H3F. In a frequency spectrum generator a plurality of oscillators tunable over ranges 3.3-4.2 mc/s., 2.7-3.6 mc/s. and 3.1-4 mc/s., i.e. of overlapping and comparable frequency ranges, are frequency and phase locked with harmonics of a 100 kc/s. pulse train from a 100 kc/s. crystal oscillator, by closed loop circuits using phase detectors and reactance valves. The second and third oscillator frequencies are then divided by 10 and 100 respectively by a phaselocking loop, and a pair in sequence of such loops, controlling tunable oscillators of frequency ranges 270-360 kc/s. and 31-40 kc/s. respectively, giving selectable frequency steps of 10 kc/s. and 1 kc/s. respectively. The latter oscillators are used to control on a phaselocking control loop a local oscillator of range 301-400 kc/s., ganged with the selected 10 kc/s. frequency step, the higher frequency tunable oscillator (of range 270-360 kc/s.) first reducing it to a range 31-40 kc/s. which is phase compared with the lower frequency tunable oscillator in a phase detector of the control loop. This local oscillator is then compared in the phase detector of a further phase-locking loop with a difference frequency produced by beating a final output oscillator of range 3.6-4.6 mc/s. with the first tunable oscillator, ganged with it, (of range 3.3-4.2 mc/s.), this phase detector controlling the frequency of the final output oscillator to the 1 kc/s. step selected. The frequency dividing circuits are ganged together and may each include circuits producing pulses from the divided frequency oscillators, preceding their inputs to the phase detectors. The phaselocked oscillators may all include capture circuits. A phase-locked loop controlling an oscillator to a reference frequency 1 mcs/s. (10 times the reference pulse repetition frequency of 100 kc/s), may also be used.
Patent GB-388344-A (GB)
Title: An improved process for spinning artificial silk, more particularly viscose silk
IPC: F16K17/30
Filed: 1932-10-31
Abstract: <PICT:0388344/IV/1> Artificial silk, particularly viscose artificial silk, is obtained by a wet-spinning process in which the freshly spun filament is led from the spinning-bath to a positively driven roller disposed outside the bath, back into the spinning bath, round a guide-member, out again to another positively driven roller, and finally to a centrifugal pot, or a bobbin, or other winding device. The filament is thus given an extended air travel and the repeated immersion in the spinning bath results in complete regeneration of the filament before it reaches the collecting device.  Sticking of the filaments in the thread strand is thus minimized.  As shown in the drawings, artificial filaments extruded from a nozzle 1 immersed in a spinning bath 2 are withdrawn from the bath by a roller 3 and led back to a guide-rod or freely mounted roller 4 immersed in the bath 2.  They are then withdrawn by a roller 5 around which they are wound one or more times, a guide 6 being employed to obtain a secure hold.  The filaments then pass to a centrifugal spinning pot.  The filaments are stretched between the rollers 3, 5 which may be mounted on the same shaft and may take the form of a stepped roller member. In another construction, the centrifugal pot is replaced by a bobbin with reciprocating thread guide, and the filaments are led for some distance in a horizontal direction through the spinning bath. If no stretching is required the rollers are rotated with the same peripheral velocity.
Patent GB-319155-A (GB)
Title: Improvements in or relating to folding tables
IPC: A47B5/04
Filed: 1928-10-23
Abstract: 319,155. Bennett, H. Oct. 23, 1928. Folding tables.-In a folding table of the kind with a top consisting of a series of slats or bars connected edge to edge by webbing 12, and stiffened by pivoted crossbars 14, so that they may be supported by a X-form or other support, and alternatively rolled up into a bundle, is provided with tabs 19 of leather, or other devices, by means of which the table mav be secured, e.g. by turn-button fastenings, to the back of the front seats of a motor-car. The free edge of the table shown is supported on crossed legs 24, adjustably pivoted at 26, and provided at their upper ends with hinged pins 22 adapted to engage with sockets 21. In a modification, instead of the pins 22 sliding bolts are fitted so as to engage with sockets on the sides or doors of the vehicle.
Patent GB-635226-A (GB)
Title: Improvements in or relating to fused electrolyte cells
IPC: C25C3/08
Filed: 1946-10-16
Abstract: 635,226. Hopper discharge. FERRAND, L. Oct. 16, 1946, No. 30755. Convention date, Dec. 31, 1945. [Class 78 (i)'] [Also in Group XXXVI] A device for feeding alumina continuously from a reservoir under pressure to a fused electrolyte cell in the production of aluminium (see Group XXXVI) comprises a slide 19 guided in an undercut groove 20 in the reinforced doublewalled bottom 2 of the reservoir and provided with calibrated orifices 10 which can be successively brought into register with an elongated aperture 11 in the bottom 2 of the reservoir by means of an exterior lever acting on one end of the slide. A plurality of slots 11 and associated orifices 10 may be provided at spaced intervals along the length of the bottom 2. Alternatively, the feed may be adjusted by varying the pressure in the reservoir. Specifications 637,579 and 641,551, [both in Group XXXVI], are referred to.
Patent GB-359698-A (GB)
IPC: H03G3/16
Filed: 1930-10-15
Abstract: 359,698. Valve amplifying circuits. KOLSTER-BRANDES, Ltd., Cray Works, Sidcup, Kent.-(Assignees of Odell, C. H.; 685, Oberlin Street, Palo, Alto, California, U.S.A.) Oct. 15, 1930, No. 30850. Convention date, Oct. 15, 1929. [Class 40 (v).] The volume control of ar amplifier c o mprises means for adjusting the screen-grid anc control-grid bias voltages in oppos i t e directions The Figure shows a screen-grid potentiometer 19 for valves 1, 2, 3 which are provided with automatic grid bias by resistance 20 so that the control grid biasing potential is reduced when the space current is reduced so that the valve operates on a straight portion of its characteristic.
Patent GB-1209301-A (GB)
Title: Headlight system for vehicles
Inventor: RANDOLPH GERALD C
IPC: B60Q1/14
Filed: 1966-07-08
Abstract: 1,209,301. Vehicle lighting systems. ESSEX INTERNATIONAL Inc. 9 Oct., 1967 [8 July, 1966], No. 30886/66. Heading H2H. A vehicle lighting system comprises a threeposition switch 3 movable to the conditions all lights off (contact pairs 3a, 3a<SP>1</SP>; 3c, 3c<SP>1</SP>), side lights energized (3b, 3b<SP>1</SP>; 3c, 3c<SP>1</SP>), side and heads lights energized (3b, 3b<SP>1</SP>; 3d, 3d<SP>1</SP>), the contacts 3c, 3c<SP>1</SP> being connected to the dip filaments 6 through a resistor 5 and auxiliary contacts 4 of the ignition switch, so that when the latter is closed with switch 3 in the side lights energized condition the filaments 6 operate in a dimdipped condition.
Patent GB-262481-A (GB)
Title: Improvements in or relating to electrode holders for electric furnaces
IPC: H05B7/105
Filed: 1926-12-07
Abstract: 262,481. Norske Aktieselskab for Elektro-Kemisk Industri, (Assignees of Akt.-Ges. f³r Stickstoffdiinger). Dec. 7, 1925, [Convention date]. Couplings. An electrode holder comprises a ring or frame D provided with pistons G for exerting the clamping pressure on the electrode B. The pressure may be exerted by springs H and released by fluid pressure supplied by pipes K. The ring may be water cooled. In Fig. 5 the piston G' is fluid operated in both directions, and exerts pressure on the rod J<1> through a selflocking arrangement comprising a block L with an inclined face.
Patent GB-1485214-A (GB)
Title: Coastal navigation aid
IPC: G01S1/44
Filed: 1975-07-24
Abstract: 1485214 Radio navigation STANDARD TELEPHONES & CABLES Ltd 24 July 1975 30976/75 Heading H4D The Specification describes a marine navigation aid for use with a mobile radio receiver to derive bearing information from signals transmitted from apparatus of the type disclosed in Specification 1,429,743. In the aid, the output A.F. signals from the radio receiver are filtered to select the modulating A.F. tone of the transmitted signals, the amplitude thereof is determined, and the successively transmitted tone bursts are counted. A first logic circuit identifies the start of the transmitted mcdulation cycle, a second logic circuit determines the occurrence of the minimum in the modulation signal, and the 1st and 2nd logic means respectively initiate and terminate counting; the final count is displayed, and represents the bearing measured by the receiver. In Fig. 2, 1st logic circuit 16 measures the periods of silence in the audio signal from radio receiver 12 and filtered at 13, until a long 5 second silent period corresponding to the start of the modulation cycle is detected whereupon counter 15 is set to one, and amplitude measurement circuit 14 is enabled. The second logic circuit, compare and hold unit 17, receives the first measured value of amplitude and stores it, and again one second later, whereby the new amplitude value, if less than the old value, replaces the latter in the store and counter 15 counts one. The null is detected when a new amplitude value greater than that immediately preceding is detected, and the counter value which represents the receiver bearing is transferred to display, but is not displayed until the end of the cycle when a long silent period, and the morse station identify signal, is detected by logic 16. If a lower null is detected during the cycle, then the counter value corresponding to its detection is transferred to the display, replacing any number previously entered. If the morse identity transmission signal is not detected the count is rejected and the count is repeated. An alarm may be arranged to be activated, if, after a predetermined number of cycles, the morse identity signal is not detected. By stepping the transmitted signals' mutual phase difference within each tone burst, it is stated that the device according to the invention, on account of its higher response speed than a human listener, may improve the resolution of the system from 3 to 1 degree change in bearing while maintaining compatibility with aural measurement.
Patent GB-391236-A (GB)
Title: Improved inkwell
IPC: B43L25/00
Filed: 1932-06-28
Abstract: 391,236. Ink-wells. MOYE, S. C., 14, Great Bland Street, and SIMMS MOTOR UNITS, Ltd., Percy Buildings, Gresse Street, Rathbone Place, London. June 28, 1932, No. 31006/31. [Class 146 (iii).] In an ink-well of the safety type, which comprises an inverted open frustrated cone 3 depending from the top 2 into the space around which the ink collects when the ink-well is tipped over, and in which the top portion is screwed on to the body portion 1, means is provided on the bottom which does not project beyond the general plane of the latter, for obtaining a firm hold with the fingers or a suitable tool. The bottom may either be provided with a circular depression 8 across which extends a bridge 9 to afford a finger or tool grip, or a curved slot for the insertion of a coin. The outer cylindrical portion 10 of the tap 2 may be milled or knurled, and the periphery of the top is bevelled at 6. The top surface of the top 2 is provided with diametrically opposite grooves 7 for supporting a pen.
Patent GB-311638-A (GB)
Title: Improvement in or connected with ladies' hair nets
IPC: A45D8/40
Filed: 1928-10-26
Abstract: 311,638. Grossmann, J. Oct. 26, 1928. Caps.-A lady's cap or hair-net with an elastic connection at the back has the net and elastic so connected that both the net and the elastic can be stretched to the full stretching length of the elastic. In the example shown the net is connected by loops F to an elastic tape C, the ends of which are attached to a border B'. A lower elastic tape D may also be used and secured by a snap fastener.
Patent GB-1134432-A (GB)
Title: Method and device for covering pipe fittings
IPC: B29C67/00
Filed: 1966-07-11
Abstract: 1,134,432. Coverings for pipe etc. fittings. C. J. BOTSOLAS. 11 July, 1966 [27 Jan., 1966], No. 31088/66. Heading F2G. A cover 1 for pipe fittings is made, as by moulding, from flexible resilient material, such as polyvinyl chloride, and has a shape substantially the same as that of the fitting to be covered when sprung into a closed position, the cover previously having been opened and placed around the fitting. The overlapping edges 4, 5 of the cover may be sealed by epoxy cement or a rubber adhesive and a layer of insulating material 12, e.g. asbestos, may be attached to the interior of the cover, Fig. 3, or a viscous insulating material or a foam can be injected between the cover and the fitting. The cover may initially be in the form of an elongated trough, Fig. 6 (not shown), the open ends (33), (34) being folded into overlapping relationship.
Patent GB-772546-A (GB)
Title: A tubular element steam-generator
IPC: F22B21/34
Filed: 1954-10-28
Abstract: 772,546. Water-tube steam boilers. ROSSI, G. Oct. 28, 1954 [Oct. 29, 1953], No. 31118/54. Class 123(2) A water-tube steam boiler has a combustion chamber A with walls and roof formed of contacting water-tubes 1 which extend from lower headers 2 to tubular members 4 of an upper steam and water collector which consists of two side-by-side groups of three horizontally-disposed tubular members 4, 5, 5 arranged at the apices of a triangle and interconnected by short tubes 6, the dimensions of the members and tubes being such that the area of evaporating surface remains constant in spite of variation in water level, the two groups being connected by cross-tubes 18. A row of downcomer tubes 7 is disposed outside each wall of the chamber A, the downcomers being connected between the lower members 5 and the headers 2. The boiler casing, consisting of double metal walls with the interspace filled with insulating material, is divided into a lower part B and an upper cover part C through the front end of which the members 5 project to permit attachment of accessories such as pressure and level indicating gauges. Fuel and air are injected into the chamber A from burners located in an opening 11 in the front wall of the casing part B, the combustion gases circulating in the chamber A and discharging through an opening D at the top of the chamber to flow through the space between the casing and the tubes 1 to a rear wall outlet port 10. To provide for ease of transport, the boiler may be made in four sections, the members 4, 5 and headers 2, which are made in half-lengths, being connected on assembly by pipes such as 16, 17.
Patent GB-618337-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F04C18/344
Filed: 1946-10-18
Abstract: 618,337. Rotary pumps. ARNOTT, F. H. Oct. 18, 1946, No. 31122. [Class 110 (ii)] A pump or compressor of the eccentric rotor and sliding vane type has vanes 18 which are located radially by means such as bearings 11 carried from the casing end plates 3, the vanes having feet 18a which contact with the outer race of bearings 11. Other features of the pump are described in Specifications 618,335 and 618,336.
Patent GB-856206-A (GB)
Title: Improvements in or relating to stabilised current supply circuit arrangements
Inventor: LAWRENCE JOHN EDWARD
IPC: G05F1/32
Filed: 1957-10-04
Abstract: 856,206. Automatic regulation. MARCONI INSTRUMENTS Ltd. July 11, 1958 [Oct. 4, 1957], No. 31157/57. Class 38 (4). In an automatic regulator the root-meansquare value of the current drawn from an alternating-current source 3 by a load 2, through windings 4, 5 of a saturable reactor, is stabilized by supplying a control winding 9 of the saturable reactor with a current dependent on the relationship between a stabilized direct reference potential applied to terminals 11, 14 and a direct potential, proportional to the alternating source voltage, applied to terminals 12, 15. The degree of compensation for the rise in R.M.S. value of the load current with change in source voltage is determined by the values of resistors 10, 13. In a modification, the current through the control winding is only dependent on the value of the reference potential and the current is stabilized for the average value. Windings 4, 5 are arranged on the outer limbs of a three-limbed core of ferro-magnetic material, having a narrow approximately rectangular hysteresis loop, so that no voltage is induced in the control winding 9 on a central limb.
Patent GB-306197-A (GB)
Title: Improvements in or relating to electric fuses
IPC: H01H85/044
Filed: 1927-11-21
Abstract: 306,197. Reyrolle & Co., Ltd., A., Leeson, B. H., and Brierly, R. H. Nov. 21, 1927. Addition to 276,740. Fusible cut-outs.-The fuse element of a cutout as claimed in the parent Specification is made removable as a whole from the outer casing. The insulating core A has projections A<1> by which it is secured to metal end plates B to which the fuse wires C, C' are attached. The plates B carry studs B<1> and are surrounded by a carton E of paper &c. to enclose marble dust &c. in the space D. The outer casing G, Fig. 1, is of metal and has screw caps H that receive the studs B' on which nuts B<2> are then screwed. The end plates B and carton E may be hexagonal to fit within an insulating tube F cemented in the casing G.
Patent GB-1267813-A (GB)
Title: A device for feeding and watering potted plants
Inventor: MITTON NORMAN
IPC: A01G27/04
Filed: 1968-06-29
Abstract: 1,267,813. Potted plant feeder. WALKERS (SHOWCARDS) Ltd. 24 Sept., 1969 [29 June, 1968], No. 31193/68. Heading A1E. A device for feeding and watering potted plants comprises two concentrically placed circular dished containers 11, 14 of preformed plastics material having differing depths and abutting peripheral flanges 12 and 15, said containers forming a substantially closed space between their bases and sloping sides, and in which a foamed plastic capillary pad rests so that its top surface protrudes slightly through holes 20, 19 in the base of container 11. One or more channels 18 to carry water are moulded in the wall of container 14 extending from the peripheral flange to the base, and through said base, adjacent the channels, holes communicating with said closed space are provided. A plant pot having a bottom hole is placed on the base of the upper container 14 in contact with the capillary pad.
Patent GB-960070-A (GB)
Title: A new or improved bar feed attachment
Inventor: DENNY DOUGLAS FRANK
IPC: B23B31/117
Filed: 1961-08-30
Abstract: 960,070. Machine tool details. F. BURNERD & CO. Ltd. July 20, 1962 [Aug. 30, 1961], No. 31202/62. Headings B3B and B3T. A reciprocating gripper 1 is connected at 3 to a lathe spindle 4 and comprises a fixed housing 15, 16, a member 2 rotatable with the spindle, a double-acting fluid-actuated hollow piston 6 forming cylinders 7, 8, a single-acting fluid-actuated piston 9 forming a cylinder 10, and a resilient collet 12 actuated by piston 9 to grip a release bar 40. In operation to feed bar 40 through the lathe spindle into a chuck 39, a valve 25 is actuated and fluid passes along pipe 29, to release the chuck and simultaneously operates a pilot control 31 to allow fluid to pass from pipe 34 through valve 33, pipe 35 to cylinders 7 and 10. Piston 9 is moved to the left and collet 12 grips bar 40. Piston 6 is moved to the right until bar 40 engages a stop 41, valve 25 is actuated to allow fluid to pass along pipe 30 and chuck 39 grips the bar. Pilot control 32 is actuated and fluid passes from pipe 34 through valve 33 and pipe 36 to cylinder 8, piston 6 is moved to the left, and collet 12 releases the bar.
Patent GB-631785-A (GB)
Title: Improvements in aeroplane wing formation
IPC: B64C3/00
Filed: 1947-11-25
Abstract: 631,785. Aircraft wings. VICKERS-ARMSTRONGS, Ltd., and RICHARDS, E. J. Nov. 25, 1947, No. 31222. [Class 4] In order to delay the formation of compressibility shock waves to the same extent over the whole span of a wing, the angle of sweep back of the quarter chord line is made greater over the inboard region than at the wing tip. The leading edge may be formed with two or more straight portions A1, A2, Fig. 1, having different angles of sweep back or by a smooth continuous curve C, Fig. 3. The trailing edge B may be straight as shown in Fig. 1, or similar to the leading edge, Figs. 2 and 4 (not shown).
Patent GB-1143473-A (GB)
Title: Waste treatment and method and apparatus therefor
Inventor: ZIEVERS JAMES FRANCIS
IPC: C01C3/20
Filed: 1966-07-12
Abstract: 1,143,473. Mixing apparatus. INDUSTRIAL FILTER & PUMP MFG. CO. 12 July, 1966. No. 31322/66. Heading B1C. Apparatus for chemically treating a liquid comprises an elongated mixing chamber or conduit 32 with inlet and outlet 35, 36; a rotatable axial shaft 40 carrying impellers 41, 42; and inlets 43, 44 delivering treating chemicals to vortices created by the respective impellers. The mixing chamber may have a neoprene lining, and an automatic valve 27 may allow passage of treating chemical only when the pump for the treated liquid is operating. There may be two such mixers in series. In one example, waste cyanide solution is pumped to inlet 35, and alkaline solution and gaseous chlorine supplied to inlets 43, 44 respectively. In another example, the treated liquid is a chromium effluent which is converted from the toxic hexavalent to the trivalent state by treatment with sulphuric acid and sulphur dioxide.