baber/WOPTO huggingface dataset:
Patent GB-1453434-A (GB)
Title: Location apparatus
IPC: B23D51/02
Filed: 1972-10-13
Abstract: 1453434 Apparatus for locating a workpiece during sawing G W WYNN 11 Jan 1974 [13 Oct 1972] 47280/72 Heading B5L A saw guide apparatus for location of a workpiece for a cutting operation comprises a surface adapted to bear against the workpiece and provided with a workpiece-contacting layer of a material having a greater coefficient of friction with the workpiece than said surface. The layer is preformed and may be secured by double-sided adhesive tape. It may be of p.v.c. or polyethylene or of foamed polyethylene, polyurethane or rubber. It may be continuous or interrupted, e.g. in strips, and may be transparent. Markings may be provided thereon for workpiece location. As described the apparatus is a sawing jig having a base 2 with the layer, holes 10 for workpiece locating dowel pins, and columns 4, 6 with saw guiding slots 8. The anti-slip material may be applied to other surfaces of the apparatus, e.g. the front face and under surface, as well as extending into the holes 10.
Patent GB-1135988-A (GB)
Title: Modulation of laser diodes
Inventor: BROOM RONALD FRANCIS JOHNSTON
IPC: H01S5/06
Filed: 1966-10-22
Abstract: 1,135,988. Lasers. NATIONAL RESEARCH DEVELOPMENT CORP. 2 Nov., 1967 [22 Oct., 1966], No. 47476/66. Heading H1C. A semi-conductor laser diode pumped both by direct current injection and by directing a beam of electrons on to the surface, is modulated by varying the intensity of the electron beam incident upon the surface. In Fig. 3 the current J through region A 1  is maintained at about the threshold for lasing, so that the electron beam incident upon region A 2  causes laser action. The electron beam may either be intensity modulated or may be deflected to either side of the laser in order to modulate the laser output. A klystron or travelling wave tube may be built around the electron beam to cause bunching of the electrons.
Patent GB-1237556-A (GB)
Title: Piezoelectric ceramic material
IPC: C04B35/46
Filed: 1968-10-08
Abstract: 1,237,556. Piezoelectric ceramics. TDK ELECTRONICS CO. Ltd. 8 Oct., 1968 [10 Jan., 1968], No. 47695/68. Heading C1J. A piezoelectric ceramic material comprises a plurality of oxides represented by the formula Pb[Ti x Zry (Nb<SP>2</SP>/ 3 Zny 3 / z ]O 3  and on or within the periphery of the area ABCDEFGH provided that x and y are both greater than 0.
Patent GB-1272089-A (GB)
Title: Method of electrochemical hydrodimerization of olefinic compounds
Inventor: TOMILOV ANDREI PETROVICH
IPC: C25B3/29
Filed: 1969-09-29
Abstract: 1,272,089. Electro-hydrodimerizing olefinic compounds. A. P. TOMILOV, V. A. KLIMOV, and S. L. VARSHAVSKY. 29 Sept., 1969 [28 Sept., 1968], No. 47774/69. Heading C2C. [Also in Divisions C3 and C7] Olefinic compounds of the formula CH 2 = CHX, where X is a nitrile, ester, amide, aldehyde or carboxy group, e.g. acrylonitrile or methylacrylate are electro-hydrodimerized (e.g. to yield adiponitrile or dimethyladipate, by electrolysing an aqueous solution of an acid salt of an alkali metal and a polybasic acid, e.g. KH 2 PO 4 , and the compound at a cathode current density of 300-1600 A/m.<SP>2</SP>, pH of 7-9 and temperature of 17-25 C., in a diaphragmless cell provided with an oxide anode, e.g. of iron oxides, Si oxides and Ti oxides, and a graphite cathode impregnated with insoluble ion-exchange polymers containing a (substituted) tetraalkylammonium group (see Division C7).
Patent GB-1107882-A (GB)
Title: Derivatives of fluoropyridines
Inventor: CHAMBERS RICHARD DICKINSON
IPC: C07D213/63
Filed: 1964-11-24
Abstract: Fluorinated pyridines carrying hydroxy or alkoxy groups, some novel, or chlorohydroxy or chloroalkoxy groups are made by reacting, preferably at elevated temperature, e.g. over 80 DEG  C., a fluorinated pyridine or fluorochloropyridine with water or an aqueous or alcoholic solution of an alkali, e.g. KOH.  The novel compounds have the formula <FORM:1107882/C2/1> wherein X and Z, which may be the same or different, each represent F, OH or alkoxy, but cannot both be F, and each Y, which may be the same or different, represents F or Cl.  The products may be recovered, e.g. by solvent extraction and recrystallization.
Patent GB-1291265-A (GB)
Title: Apparatus for performing chemical analysis by electron spectroscopy
Inventor: HELMER JOHN C
IPC: H01J49/48
Filed: 1969-09-30
Abstract: 1291265 Particle spectrometers VARIAN ASSOCIATES 30 Sept 1969 [30 Sept 1968] 48040/69 Heading H1D An electron spectrometer comprises an arrangement for irradiating a sample material on cylinder 34 with, for example, U.V. or (as shown) X-rays to cause electrons to be emitted therefrom, and an annular slit 52 forming an entrance for electrons from the sample material to a spherical electrostatic electron energy analyser 54, including two annular slits 52, 82 in respective focal planes thereof, which focuses electrons of selected energy on to a detector, e.g. electron multiplier 92, wherein the potential between the sample material cylinder 34 and the slit 52 is variable to selectively alter the energy of the electrons focused on to the detector by providing a variable retarding field for the electrons, and thus sweep the energy spectrum of the emitted electrons. Sample cylinder 34 may be coated with a number of annular rings of different sample materials for chemical analysis which are selectively bombarded by X-rays from anode 44 by moving the cylinder along its axis. Energy analyser 54 comprises a pair of truncated conical spherical plates 56, 58 having entrance and exit focusing apertures 60, 64. The annular slit 52 is disposed in a focal plane of the analyser 54 and a second annular slit 82 in the opposite focal plane provides an entrance for the selected electrons to a focusing condenser 88 for the detector 92. At the exit of analyser 54 additional focusing electrodes 72 comprising inner plate 74 and segmented outer plate 76 are provided to enable adjustment of the position and shape of the final image in annular slit 82. Factors governing the energy resolution and permitted aberration of the spectrometer are discussed; the size of the aperture 80 in plate 78 disposed at the cross-over point for central electrons from the analyser 54 and the width of the slit 60 of analyser 54 are important in this respect. The output from photomultiplier 92 is fed to a multiscaling computer 98 which is swept in synchronism with the sweep of generator 70 supplying sample cylinder 34 and which with successive sweeps performs a multi-channel addition and storage operation to form a composite energy spectrum of the electrons from the sample. As shown, an annular X-ray tube for irradiating the sample material comprises filament 40 concentrically surrounding fluid-cooled anode 36 with an interposed shielding member 42 and X-rays from anode surface 44 are filtered through a thin Al foil 47. Alternatively, Fig. 4 (not shown), the X-ray tube anode may be conical and the sample material disposed on the inside surface of an annular carrier in the form of a frustrum of a cone; or, Fig. 5 (not shown), the sample material may be disposed on a plate at right angles to the instrument axis. The apparatus may be evacuated by a titanium sublimation pump 100 comprising Ti slug 104 and water cooled surface 108 on to which the Ti and combined exhausted gases are plated.
Patent GB-1038380-A (GB)
Title: Improvements relating to bulk transport containers
Inventor: IRWIN RONALD
IPC: B65D88/62
Filed: 1963-12-06
Abstract: 1,038,380. Tank vehicles. YORKSHIRE ENGINEERING & WELDING CO. (BRADFORD) Ltd. Dec. 15, 1964 [Dec. 6, 1963], No. 48213/63. Heading B7B. A tank vehicle comprises preferably similar halves 6, 7, each provided with a filling and discharge opening such as 6B, 7B and 6C, 7C. A flexible lining 8 which may be elastic is secured between the flange joints 6A, 7A and is displaceable to line either the front half 6 or the rear half 7, thus allowing the full capacity of the tank to be used to carry different classes of goods on different journeys by utilizing either pair of filling and discharge openings.
Patent GB-1442170-A (GB)
Title: False ceiling for air-conditioned area
IPC: F24F7/10
Filed: 1973-10-17
Abstract: 1442170 False ceilings adapted for air conditioning MESSIER 17 Oct 1973 [20 Oct 1972] 48390/73 Heading F4V  A false ceiling comprises interchangeable elements of the same size in horizontal crosssection, comprising first elements 7 for inflow of conditioned air and second elements (9, Fig. 6) for outflow of stale air, each of the elements 7, (9) having a flat bottomed central portion with airflow passages 11 therethrough and an upstanding rim, and each element 7 being supplied with air through flexible-bellows 13 which may have a heat and acoustic insulating blanket 15 secured thereto, whereby when the bellows 13 are not supplied with air they collapse and the passages 11 are closed by the bellows 13 or the blanket 15, when present. The elements 7 are supplied from one or more common distributing chambers via flexible ducts 5. The second elements (9) also include blankets 15. The elements 7 (9) are square, rectangular or round in horizontal cross-section and may be identical. The ceiling may also include imperforate elements which are interchangeable with the first and second elements. The blankets 15 may be made of glass wool and the bellows 13 and ducts 5 of coated fabric.
Patent GB-1163769-A (GB)
Title: A Universal Joint for Worm Pumps
Inventor: BAUERNFEIND HERBERT
IPC: F16D3/18
Filed: 1966-11-01
Abstract: 1,163,769. Universal joints. E. NETZSCH, [trading as NETZSCH MASCHINENFABRIKEN, GEB.]. 1 Nov., 1966, No. 49009/66. Heading F2U. In a universal joint for connecting a driving shaft b<SP>1</SP> to the rotor h<SP>1</SP> of a worm pump wherein teeth on a spherical hub d<SP>1</SP> fast with the driving shaft b<SP>1</SP> interengage with teeth on a ring f<SP>1</SP> keyed at l<SP>1</SP> to the pump rotor h<SP>1</SP> and housed within a sleeve e<SP>l</SP>. As shown part-spherical rings c<SP>1</SP> centre the hub d<SP>1</SP> and transmit axial thrusts. The hub d<SP>1</SP> is splined on the shaft b<SP>1</SP>. The teeth on the hub and ring may have convex flanks. The joint is sealed by a flexible cover q<SP>1</SP>. In Fig. 3 (not shown) a pin (15) fast with the ring (5) passes through a sleeved hole (17) in the hub (2) and transmits axial thrusts. The pin and sleeve are shaped to allow universal movement between the hub (2) and ring (5). The hub (2) is keyed to the driving shaft (1) and secured against axial movement relative thereto by screws (3).
Patent GB-1361656-A (GB)
Title: Threadable yarn treatment apparatus
IPC: B65H54/88
Filed: 1971-10-22
Abstract: 1361656 Threading yarn treatment apparatus IMPERIAL CHEMICAL INDUSTRIES Ltd 18 Oct 1972 [22 Oct 1971] 49118/71 Heading D1F Apparatus for treating continuously advancing yarn 4 comprises a yarn passageway 2, first guide means 3 for guiding yarn in proximity to the passageway entrance, locating means 7 for engaging a suction gun 8 over the passageway exit so that it may draw air over the guide 3 and through the passageway, and second guide means e.g. ceramic rod 5, for guiding yarn from the guide 3 round the outside of the apparatus and into a suction gun 8 engaged by the locating means 7. In operation, yarn 4 from a continuously advancing supply is entrained in suction gun 8 and threaded round guide 3 and over the guide 5. The gun 8 is then located at means 7 and the yarn engaged in slit 9 in the locating means 7. The yarn is then cut in the recess 6, either manually or by means actuated by engagement of the gun 8, and the cut end drawn into the passageway 2. The treating apparatus may be in the form of a fluid jet interlacer 1, a friction bush false-twister, or a yarn heater.
Patent GB-954280-A (GB)
Title: Improvements in and relating to goggle or plate valves
Inventor: WALL HENRY CHARLES
IPC: F16K3/312
Filed: 1962-12-31
Abstract: 954,280. Valves. JOHN MILES & PARTNERS (LONDON) Ltd. Dec.31, 1962, No. 49127/62. Heading F2V. A goggle valve plate 11 is movable between flanges 12 surrounding a flow duct of which at least one of the flanges is movable axially of the duct through a bellows 22 to permit movement of the plate 11. Annular grooves 14 are provided in the seating surface of the valve plate, or in the seating surfaces of the flange faces, these grooves being connected to a gas supply 16 at a pressure not less than that of the controlled fluid. The grooves are preferably surrounded by sealing rings 15. The gas supply may be the same as the controlled fluid which acts on a pressure-regulating valve to control the gas pressure supply to the grooves.
Patent GB-1128374-A (GB)
Title: Carrier materials provided with a water-resistant deposit of a starch derivative
Inventor: ZIJDERVELD ANTONIUS HENDRIK
IPC: D21H19/54
Filed: 1965-11-19
Abstract: 1,128,374. Water-resistant coatings. W. A. SCHOLTEN'S CHEMISCHE FABRIEKEN N.V. 18 Nov., 1966 [19 Nov., 1965], No. 49140/65. Addition to 977682. Heading B2E. [Also in Division C3] A carrier material e.g. paper or paperboard, is provided with a water-resistant deposit of a starch derivative consisting of a reaction product of a water soluble or water dispersible melamine-aldehyde precondensate with a starch derivative, obtained by hydrolyzing starch at a temperature between 60‹C and 300‹C with an inorganic acid in the presence of urea and less than 50% water calculated on the weight of the mixture to such an extent that a 25% by weight aqueous solution of the starch derivative has an apparent viscosity of at least 10 cerstipoises e.g. 10 to 1500 ops, at 25‹C. An aqueous composition containing the starch derivative is applied to the carrier material and the material so treated is contacted with a water-soluble or water dispersible melamine-aldehyde precondensate so as to tender the starch derivative insoluble; or the carrier material may be treated with a solution, which may have a pH of 6 to 9, contaming both the starch derivative and the melamine-aldehyde precondensate; 5 to 20% of melamine-aldehyde precondensate based on the weight of the starch derivative may be used. The treated carrier may be dried at a temperature of 80 to 100‹C. The starch before hydrolysis may be gelatinized or non gelatinized, and may be corn, waxy maize, potato, sago, wheat, tapioca, or rice starch, starches modified by acids, enzymes or oxidants, dextrins, chemical derivatives of starch which retain their starch character, and 1 to 20% by weight of inorganic acid and 5 to 50% by weight of urea based on the weight of starch may be used in the hydrolysis thereof. The weight ratio of urea to inorganic acid may be from 1 to 8:1. The inorganic acid may be sulphamic, phosphoric, sulphuric, hydrochloric, or nitric acid, or a mixture thereof. The melamine-aldehyde precondansate may be a methylol derivative or formaldehyde resin of melamine or substituted melamine e.g. stearyl melamine, and may be an alkylated or partially alkylated melamine-aldehyde precondensate e.g. a methylated or butylated methylolmelamine. The treated carrier may be calendered and/or supercalendered.
Patent GB-1452238-A (GB)
Title: Circular saw blades
IPC: B23Q11/00
Filed: 1974-11-14
Abstract: 1452238 Saws STRIDSBERG & BIORCK AB 14 Nov 1974 [28 Nov 1973] 49305/74 Heading B5L A circular saw has teeth 1 welded or soldered to radial projections on the saw disc 3 with the bottom portion 4 of each gap 2 between adjacent projections extending radially inwards of the inner ends 5 of the teeth and the disc 3 radially inwards of the teeth being provided in at least one side with an annular groove 6, 7. In an embodiment a steel disc 3 has hard metal teeth 1 welded or brazed to projections thereon and the disc on each side thereof and radially inwards of the teeth is ground at 6, 7 to provide grooves so that the bottom of each groove coincides with a line 8 connecting the bottoms of the gaps 4. Only one groove may be provided. It is stated that this construction reduces rotation generated noise.
Patent GB-1449863-A (GB)
Title: Dredging
IPC: E02F3/90
Filed: 1973-10-24
Abstract: 1449863 Dredgers D BLANKEVOORT 24 Oct 1973 [15 Nov 1972] 49507/73 Heading E1F [Also in Division Fl] A soil-water mixture is raised from below water level through a lifting tube into which compressed air is introduced at intervals, at least at the lower end of the tube. As shown a tube 1 extends into a bed 3 comprising the soil-water mixture and compressed air is introduced intermittently at 12 by a valve 10 to create the slugs of soil-water mixture and air 5, 4 respectively. The lower end of the tube is moved through the bed 3 and opens forwardly at 13 to the casing 15 of an excavating tool comprising a driven cutting head 16 having helical parts 18 with cutting edges 20, 22 and a trailing edge 19, the edges 19, 20, 22 forming a discharge part 21. The speed of the cutting tool and the intervals between the introduction of compressed air are regulated to avoid excessive suction at the inlet of the tube. The ratio of soil to water is that existing in the bed 3.
Patent GB-495204-A (GB)
Abstract: 495,204. Igniting gas burners. GAS LIGHT & COKE CO., and VOICE, E. W. May 27, 1937, No. 14697. [Class 75 (iii)] Tubes 6 extend between jets 7 in the burners 8 of a hot-plate and inlet openings 3 in a housing 1 for a catalytic element so that any burner is ignited, on opening the gas cock by a flashback through the corresponding tube. The tubes 6 are connected by lugs 12 to the housing 1 and rest on supports 11 on the burners so that the tubes and housing form a rigid removable unit and air inlets are provided at the ends of the tubes. The inner part 10 of each tube is inclined downwardly and a chimney 13 with a detachable cowl 14 is provided at the bend to vent the combustion products. The catalytic element is suspended from a bar 4 in the housing, which is provided with a detachable cover 5 and may be open at the bottom. In a modification, flash tubes 28, Fig. 4, extend upwardly from an L-shaped housing 21, provided with a protecting cap 31 for the catalytic element and suspended by a hook 32 from a burner tube 33. The ends 34 of the tubes 28 are preferably cut obliquely and rest on supports 35 formed with an air inlet. One of a pair of grill burners 39, 40, Fig. 6, may be ignited by a train of pilots 42 and a flash tube 28 and, in turn, ignite the other burner. Specification 16243/12, [Class 75 (iii)], is referred to.
Patent GB-1524354-A (GB)
Title: Method of producing aluminium alloy sheet products
IPC: C22C1/02
Filed: 1974-11-15
Abstract: 1524354 Aluminium alloy; heat-treatment ALCAN RESEARCH & DEVELOPMENT Ltd 31st Oct 1975 [15 Nov 1974 (2)] 49640/74 and 49641/74 Heading C7A [Also in Division B3]  Alloys containing in wt.per cent Fe 1À1-2À5 Si 0-2 Zn 0-2 Ni 0-1 Mn 0-0À5 Cu 0-1 Mg 0-1 Others 0-0À3 each (#1 total) Al balance are cast into a slab of thickness <25mm at a growth rate of >25cm/min. to deposit intermetallic compounds in the form of elongated rods of 0À05- 0À5Á diameter, those phases constituting <5% by volume of the alloy. The slab is rolled with #60% reduction so that the rods are fragmented and the intermetallic phase dispersed, after which the material is finally annealed at 250-400‹C. The cast slab may be annealed at 350-500‹C before cold-rolling. The product may be used as fin stock for heat exchanger fabrication.
Patent GB-1101208-A (GB)
Title: Improvements in or relating to warning devices
Inventor: DEADMAN HAROLD BERNARD
IPC: G01S11/06
Filed: 1965-11-23
Abstract: 1,101,208. Detecting voltage presence. C.W. WING & CO. Ltd. Nov. 22, 1966 [Nov. 23, 1965], No.49795/65. Heading G1N. In apparatus for giving warning of the close proximity of an overhead high voltage power supply line, an alarm sounds when the instantaneous potential difference between two probes exceeds a predetermined value. As shown, two probes 1 and 2 are connected through respective two stage transistor amplifiers 3, 4, having emitter follower outputs, and resistors 5, 6 to respective ends of a primary winding of a transformer 7, the secondary winding of which is connected through a two-stage transistor amplifier 8 with adjustable feedback 9 to a close tolerance relay 10 which in turn is connected to a heavy duty relay (not shown) to control an alarm bell 11. A test oscillator 12 can inject a test signal into amplifier 3. Warning of failure may be provided by relays (not shown) that operate if the mains current taken rises above or falls below a predetermined range of values. A small voltage proportional to the potential of each probe may be fed directly to amplifier 8 so that warning may be given even if the two probes are equidistant from the power line. The probes may be flat circular plates, cylinders or spheres. A loudspeaker alarm may replace the bell 11.
Patent GB-1214549-A (GB)
Title: Improvements in or relating to a pair of hip-lenght stockings
IPC: A41B11/14
Filed: 1968-10-30
Abstract: 1,214,549. Hip length stockings. GLOBOTEX A.G. 30 Oct., 1968 [30 Jan., 1968; 31 July, 1968], No. 51381/68. Heading A3V. A pair of hip length stockings 10 comprises two leg portions 11 and ladder resistant hip portions 12, a slit or cut-out 13 being located along the inner face of each hip portion and the edges of the slits being formed without seams. The stockings 10 are preferably manufactured on a circular knitting machine and the leg portions 11 are preferably knitted in elastic thread material. The hip portions have cross elasticity. Slits 13 each terminate in a strip 14 which is strengthened by elastic threads and is also ladder proof. An edge strip 15 is formed from highly elastic rubber thread or plastics material. Strengthening strips 16 have double stitching or may contain an additional strengthening thread. The two hip length stockings 10 are press fastened together at 17. In another embodiment a single stocking (10<SP>1</SP>), Fig. 2 (not shown) has a belt (31) which is fixed or detachably fixed to the ends of the edge strip (15) or which may be a complete belt drawn through the edge strip (15<SP>1</SP>). A second slit or cut out (13a), Fig. 3 (not shown), may be provided. This slit may extend to the top, Fig. 4 (not shown), which avoids reversing when the stockings are exchanged for one another; the slits on the outer side of the hip portions (12<SP>1</SP>) may be press fastened. In a further embodiment, Figs. 5, 6 (not shown) instead of the strengthening strips 16 a pile (44) is provided in the slit region (42) which differs from the surround knit in that the elastic strengthening thread present throughout the knit is only partially knitted in Fig. 7a (not shown).
Patent GB-1018440-A (GB)
Title: Double-twist spindle
IPC: D01H13/30
Filed: 1964-12-18
Abstract: A unit to supply a finishing or wetting agent is provided in 2:1 twisting apparatus, the unit being mounted on a control tube carried by the stationary bobbin-support and extending above the bobbin, the upper part of the unit being shaped to accord with the path of the yarn where it unwinds from the bobbin and enters the tube.  The unit may be a solid block of material urged upwardly by a spring or moved by hand to compensate for wear: alternately, the block may be stationary and wear is offset by arranging for the yarn to depress the tube against the force of a spring.  In another form, the unit comprises an absorbent pad fed by wicks from a supply of liquid; the pad and liquid may be contained in a housing of beehive shape with apertures through which liquid passes to the outside of the housing for contact with the yarn and to drop into a lower tray with apertures allowing liquid to pass to the interior of the tube.  The pad may also communicate with the interior of the tube which is bent to ensure that the yarn contacts the welted side of the tube.  To replenish the liquid, a valve may be provided through which liquid can be pumped, or the upper thread guide may be constructed as a pipe from which liquid drips into a receiver.  The 'beehive' member may be mounted on a spring to maintain uniform tension in the yarn.