baber/WOPTO huggingface dataset:
Patent GB-388904-A (GB)
Title: Improvements in apparatus for controlling electric current supply
IPC: H03B5/30
Filed: 1932-01-18
Abstract: 388,904. Valve generating circuits. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ESPLEY, D. C., c/o General Electric Co., Wembley, Middlesex. Jan. 18, 1932, No. 1476. [Class 40 (v).] A circuit for supplying current at a frequency determined by a tuning-fork or like vibrator comprises two gas-filled triode valves arranged to maintain the fork vibrations, and so interconnected in push-pull relation that the starting of a discharge in one stops the discharge in the other. The grid circuits of the two valves 2, 21 comprise a centre-tapped transformer 11 with its primary circuit connected through a phase-adjusting circuit 21 to a pick-up coil 12 energized by the vibrations of the fork 13. The fork is driven by a coil 20 connected to the output transformer 15, the primary of which is centre-tapped and connected to the valve plates. The plate circuit may also include resistance 18 and coils 16 for driving a phonic wheel 17. The valves are of the type in which the grid loses control when a discharge has started, and in order that the discharges may pass alternately through the two valves, the plates are connected to each other through a condenser 7. When a discharge starts in one valve, its plate voltage falls and the fall is communicated to the other plate through the condenser 7 and stops the discharge in that valve. The transformer 15 may be transferred to a position in series with the condenser 7, and an additional condenser may then be connected between the anodes.
Patent GB-587816-A (GB)
Title: Improvements in the grinding of diamonds and other hard materials
IPC: B24B9/16
Filed: 1945-01-18
Abstract: 587,816. Grinding diamonds. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., LUNT, R. W., and DEAN, G. J. Jan. 18, 1945, No. 1492. [Class 60] A machine for grinding diamonds and other hard materials, comprises a power-driven disc rotatable about a horizontal or inclined axis and enclosed in a stationary casing containing a bath into which the disc dips as it rotates so as to be wetted by liquid carrying a grinding powder contained therein and means for holding the diamond to be ground against the disc in a wetted region thereof. A cast-iron disc 4, driven by electric motor 2, is enclosed in casing 5, the bottom of which forms a bath for the abrasive-carrying liquid 10 which is preferably of low viscosity such as cyclohexanol or carbon tetrachloride; a drain pipe 11 with cock is provided. A horizontal slot 6 extends across the casing ; the diamond 15 is held against the disc by a spring-pressing device, the holder 13 being movable in dovetailed guide in bracket 12 and clamped in adjusted position by screw 14. Inside the casing and below the slot is a horizontal ridge 16, which deflects liquid back on to the disc just below tho diamond. The motor also drives through flexible shaft 17 an abrasive wheel 18 for trimming the disc.
Patent GB-1041199-A (GB)
Title: Method and apparatus for fabricating one-dimensionally graded devices
IPC: B29C67/02
Filed: 1964-01-13
Abstract: In a process an apparatus for making a material having its dielectric constant uniformly graded in a single dimension, a dielectric material loaded with conductor material is fed from hopper 10 and an unloaded dielectric material from hopper 11 on to belt conveyers 12, 13; the amounts of materials are graded across the belts by fixed gates 14, 15 which are contained in complementary fashion so that the same total amount of material is discharged at any point across the belts at 16.  The mixed materials fall into a receptacle 18 forming a material of dielectric constant uniformly graded across the receptacle, which is reciprocated transversely to the line of discharge in order to layer the material.  The receptacle may be a mould which can be steam heated to form a block from which pyramidal modules can be cut to form dielectric lenses or energy absorbers (see Figs 1D and 3A-D, not shown, and Division H4).  The gates may be of periodical repeating contours to form a block with periodically varying dielectric constant (see Figs. 4A and 4B, not shown).  The material can be polystyrene loaded with aluminium slivers, carbon or graphite.
Patent GB-816381-A (GB)
Title: Improvements in and relating to indicators and indicating systems
IPC: G09D1/00
Filed: 1957-01-15
Abstract: 816,381. Signs. HORTON, W. G. Aug. 15, 1957 [Jan. 15, 1957; Feb. 8, 1957], Nos. 1504/57 and 4386/57. Class 3(2) A production chart or the like, Figs. 3 and 4, comprises a base plate 19 having flanges 20, suspension hooks 22, two detachable strips 26, 27, 28 defining opposed grooves 29, a stop strip 30 and an upper rail to receive a cursor or a covering screen. The grooves are adapted to receive carriers for paper strips which carriers may take the form of a base pad or base having opposed grooves or an upturned flange (see Figs. 5, 7 and 9 respectively, not shown). The carriers may, take the form of a plastic tube or comprise a balsa rod 49, Fig. 11, having a strip of graph paper 50 secured thereto by a polythene casing 51, the device being used in association with indicating pins 53. The indicating strip 54, Fig. 13, may be made up from a strip of coloured translucent plastic material.which is scored and apertured or constitutes a sleeve of transparent plastic material adapted to be slipped over a carrier member (see Fig. 14, not shown). Finally, the carrier, Fig. 15, may comprise a base member 63 having opposed channels 66, 67 rearwardly-extending projections 65 and opposed grooves 69 for receiving endless cords 70, 71.
Patent GB-357462-A (GB)
Title: Improvements in or relating to actuating mechanism for droppers of lace machines
IPC: D04C3/24
Filed: 1931-01-16
Abstract: 357,462. Lace machines. SOC. ANON. DES MECANIQUES VERDOL, 16, Rue Dumont Durville, Lyons, France. Jan. 16, 1931, No. 1551. Convention date, Nov. 20, 1930. [Class 74 (i).] A Verdol jacquard, employing a continuous paper band, is used to work the droppers of a lace machine. To economize time in selection, the Verdol mechanism lifts intermediate droppers 20 before the droppers 6 .. 12 have been released by the driving bars 5. The droppers 6 .. 12 are connected by steel ribbons 13 to spring-pressed plungers 14 which follow the droppers 20 as selected and so cause the droppers 6 .. 12 to be selected similarly, when released.
Patent GB-345391-A (GB)
Title: Improvements in the manufacture and production of oxygenated organic compounds
Filed: 1930-01-16
Abstract: The process of the parent Specification is carried out with the further addition of at least 2 per cent by weight of a saturated aliphatic carboxylic acid containing not more than 4 carbon atoms in the molecule.  These acids influence the course of the reaction so that the products are mainly alcohols or their esters.  Instead of the acids, their available anhydrides may be used, since the anhydrides are converted into acids by water formed during the reaction.  The best results are usually obtained by adding 10 to 20 per cent by weight of the acids, or slightly less if anhydrides are used.  In the examples, (1) a mixture of 300 parts by weight of hexane, 30 of acetic acid and, preferably, 0,15 part of manganese acetyl acetonate are treated with 100 parts of air per hour during 5 hours at 145 DEG  C. under 20 atmospheres pressure in a pressure-tight tube lined with aluminium and charged with filling bodies of the nature of Raschig rings.  Some hexane remains and the product consists mainly of esters of acetic acid with lower alcohols. The esters may be separated by distillation.  (2) 320 parts of a petroleum fraction having a boiling-point of from 70 DEG  to 75 DEG C. are treated in the apparatus described in example 1 together with 0,25 part of manganese acetyl acetonate and 25 parts of acetic anhydride for 4 1/2 hours at 150 DEG  C. and 50 atmospheres pressure with 130 parts per hour of a mixture of 62 parts by volume of air and 38 parts of carbon dioxide.  On cooling, the mixture forms two layers, the upper being mainly unaltered initial material, and the lower being acetic esters of the alcohol formed, carboxylic acids and their esters with the alcohol.  (3) 300 parts of the same petroleum fraction are blown with air for 3 hours at 145 DEG  to 150 DEG  C. and 25-30 atmospheres after incorporation with 25 parts of propionic acid, 10 parts of acetic anhydride and 0,6 part of barium cinnamate. A product resembling that of example 2 is obtained.
Patent GB-225726-A (GB)
Title: Centrifugal casting machine
IPC: B22D13/10
Filed: 1924-01-21
Abstract: 225,726. Fairweather, H. G. C., (Castings & Supplies, Ltd.). Jan. 21, 1924. Casting machines; metal-pouring, moulds.-A machine for centrifugally casting pipes has a lined water-cooled spout for delivering the molten metal from a ladle to the centrifugal mould, the lining of the spout being held in position by the cooling pipes. The mould 11 has a water-cooling service 15 and is driven by belt from a motor 16, rollers 12 being provided to form a bearing for the mould. The spout 21 is lined with fire-brick or cast-iron blocks which are held in place bv cooling pipes 29, Fig. 3, the latter being connected at the outer end and having water delivered to them by a telescopic pipe. The spout is carried by rollers 25 and is traversed slowly through the mould as the metal is delivered, by a hydraulic ram 23. A shoot 35 constantly engages the lining of the spout to clear obstructions and receives the molten metal from a ladle carried by a shaft 47 which may be rocked by a rope wound on a drum 41 driven through worm-gearing by a motor 37.
Patent GB-1298901-A (GB)
Title: Method of producing reproductions of uneven surfaces
IPC: B44F11/02
Filed: 1970-01-13
Abstract: 1298901 Pictures KYODO INSATSU KK 13 Jan 1970 [19 April 1969] 1685/70 Heading B6X A relief representation of an original painting having a pattern of brush strokes on its surface for enhancing the three-dimensional effect of the representation is formed by first reproducing the pattern of brush strokes B, Fig. 1, using a colour-separation photography method, on a printed sheet 1 on which the brush stroke pattern is represented by areas 2 and, then casting a transparent, light-sensitive, viscous synthetic resin on to the original to reproduce a relief pattern of the brush strokes in the resin, which is set following exposure to ultra-violet light. The set resin which forms a mould cavity, Fig. 5, is reinforced at its rear face with a glass fibre fabric 5 to produce a mould 7, the cavities 6 of which are filled with a transparent, light-sensitive, viscous synthetic resin. The cured resinous pattern in the mould is then overlaid by the printed sheet 1 through the intermediary of an adhesive bonding layer 11 and the printed sheet 1 is backed by a reinforcing support plate 12. The completed assembly is then removed from the mould
Patent GB-122277-A (GB)
Title: Improvements in or relating to Holders or Cases for Watches.
IPC: A45C11/10
Filed: 1918-01-30
Abstract: 122,277. Pearson & Sons, E. J., and Pearson, A. E. Jan. 30, 1918. Attaching watches to wearing-apparel. - Relates to a watch holder designed to be carried by a belt. A case a of leather &c. is shaped to fit a watch b, the face of which may be viewed through a circular orifice. A plain strip d, integral with the back of the case and hinging along the line e, has a pair of parallel slits dividing it into three tongues g, g<1>, the belt h of the wearer being passed between the tongue g<1> and the two tongues g. A flap extension i is adapted to be secured to the case a by snap fastenings k, &c. On disengagement of the flap, the case a can be turned down, as shown in broken lines, to expose the dial in an inverted position to the wearer. A separate loop may be used in place of the strip g<1>.
Patent GB-1344861-A (GB)
Title: Elastomers and method of producing same
IPC: C08F283/01
Filed: 1971-01-13
Abstract: 1344861 Elastomers FIRESTONE TIRE & RUBBER CO 13 Jan 1971 [30 Jan 1970] 1764/71 Headings C3P and C3R Elastomers having a Shore A hardness of 25 to 100 are produced by producing a liquid adduct with a molecular weight of 2000 to 20,000 by reacting (1) a polyester diol derived from an aliphatic dicarboxylic acid containing 3 to 9 carbon atoms or an anhydride thereof, or derived by initiating polymerization of a lactone with a diol, a polyether diol derived from an aliphatic ether containing hydrocarbon groups of 2 to 4 carbon atoms, a diol of a substantially completely saturated hydrocarbon polymer or a diol of a substantially completely hydrogenated polydiene, with (2) an anhydride of an unsaturated aliphatic carboxylic acid containing 3 to 14 carbon atoms and having the formula in which R 1  and R 2  represent hydrogen or alkyl radicals containing 1 to 4 carbon atoms, or an unsaturated acid chloride having the formula in which R represents hydrogen or an alkyl radical containing 1 to 6 carbon atoms at a temperature of 70‹ to 135‹ C., or a diisocyanate in an amount such that there are two isocyanate groups for each hydroxyl group in diol (1), and reacting the free isocyanate group in the reaction product with a pendant hydroxyl or carboxyl group of an unsaturated monomer, thus introducing unsaturation at the end of the diol chain; and then copolymerizing the adduct with 10 to 50% by weight based on the adduct of an unsaturated monomer or mixture of monomers with a peroxide catalyst at a temperature from ambient temperature to 250‹ F. In the examples adducts prepared from epsilonmethyl-caprolactone and ethylene glycol, polycaprolactone diol, completely hydrogenated polybutadiene, polypropylene ether glycol and poly(tetramethylene ether) glycol with maleic anhydride, poly(tetramethylene ether) glycol with acrylic anhydride and poly(tetramethylene ether) glycol with acryloyl chloride are copolymerized with styrene, acrylonitrile, acrylic acid, vinyl acetate, acrylamide and t-butyl styrene in the presence of benzoyl peroxide, methyl ethyl ketone peroxide, cobalt naphthenate, aminosilane treated kaolin and silica in moulds or a bottle.
Patent GB-415325-A (GB)
Title: A step in the manufacture of piston-rings
IPC: C23C8/00
Filed: 1934-01-19
Abstract: 415,325. Making piston-rings. WELLWORTHY, Ltd., and BLACKITH, F., Radial Works, Stanford Road, Lymington, Hampshire. Jan. 19, 1934, No. 1928. [Classes 83 (ii) and 83 (iv).] Internal metal-working formers.-A split piston-ring when shaped to its final form is placed for heat treatment on a mandrel having an external peripheral portion similar in size and shape to the internal periphery of the piston ring when unstressed. One form of mandrel has a number of ring grooves 12 the base of each groove being shaped similar to that of the inside of a piston-ring in its unstressed condition, the transverse axis 16, Fig. 2, being greater than that of the vertical axis 15. Instead of ring grooves a plain mandrel may be used on which the rings are secured by a screwed ring or end plates held together by bolts. A modification comprises a tubular member 18, Fig. 5, originally turned to have an external periphery similar to the internal periphery of the rings when stressed or closed, which is then split longitudinally by a thin saw and opened out to receive a bar 21 of such a width as to give to the tubular member an outside periphery similar to the internal periphery of an unstressed ring, the bar 21 may be slightly proud of the tubular member for correctly positioning the rings.
Patent GB-230593-A (GB)
Title: A new or improved telephone tag or hook for connecting wires
IPC: H01R11/12
Filed: 1924-01-24
Abstract: 230,593. Turton, W. H. Jan. 24, 1924. Wire terminals.-Telephone tags and the like comprise a pin 5 and a hook or loop 1 substantially rectangular or U-shaped in form so that more than one may be connected to a common terminal 11 as indicated in Fig. 6, whilst the pin may be used with an eyed terminal or an adaptor 8, or series connector 12, with a spring grip.
Patent GB-156417-A (GB)
Title: An improved portable device for loading lorries, wagons, trucks and the like
IPC: B65D88/30
Filed: 1920-01-22
Abstract: 156,417. Johnston, D. H. Jan. 22, 1920. Loading-hoppers.-To facilitate the loading of motor lorries &c. from railway wagons &c., a portable hopper appliance is used and when loaded the motor lorry &c. is run underneath it and the hoppers emptied. A frame a on wheels is fitted with hoppers e which may be of unequal size and which are filled from a railway wagcn. The rear end of the frame is open so that a motor lorry can be run in underneath the hoppers. The hopper valves k are then opened and the hoppers discharge into the lorry. The hoppers may be adjustably mounted on the frame so that they can be lowered for the filling operation.
Patent GB-544905-A (GB)
Title: Improvements in the manufacture of hollow rubber articles
Filed: 1941-02-17
Abstract: 544,905. Hollow-rubber articles. DUNLOP RUBBER CO., Ltd., TAYLOR, S. D., and MURPHY, E. A. Feb. 17, 1941, No. 2118. [Classes 70 and 87 (ii)] Hollow rubber articles such as balloons, football bladders, inner tubes for tyres, inflatable toys &c., are formed 'from rubber dispersions, by forming a layer of the dispersion, causing the layer to gel, treating portions of the surface to render them non-adherent, covering the layer with a second gelled layer, subjecting to. pressure to cause the untreated portions to unite and drying and vulcanizing the united layers. The united layers may be inflated into a mould of the shape of the article to be produced and drying effected while inflated, vulcanization being effected after deflation. The articles may be produced in a flat circular tray having a tube extending downwards from its centre within which is mounted a metal rod to define an annular cavity for the formation of an inflating stem. The surface may be treated to render it non-adherent by applying wet blotting-paper or " Cellophane " (Registered Trade Mark), or by spraying with soap solution or zinc stearate in alcoholic solution.
Patent GB-470560-A (GB)
Title: Improvements in electrical switching apparatus especially adapted for use with pneumatic tube conveying systems
IPC: B65G51/42
Filed: 1937-01-25
Abstract: 470,560. Valve relay circuits. LAMSON PNEUMATIC TUBE CO., Ltd. (Krebs, E.) Jan. 25, 1937, No. 2168. [Class 40 (v)] A switching device for guiding a carrier in a pneumatic tube conveyer system is operated by changes in plate current of a grid-controlled valve, the grid biassing potential of which is controlled by the moving carrier, the circuit being so arranged that the time of application of the operating grid potential is independent of the time of operation of the carrier on the circuit. The relay tube 1 derives its plate and filament supply voltage from the mains 2, 3, 4, the terminals 2, 3 being provided for alternative mains voltages. In the case of A.C. supply the anode and grid voltages are rectified by rectifiers 16, 8 respectively. The normal grid bias of valve 1, derived from the cathode resistance 7 is such that the anode current is insufficient to operate the relay 12. The passage of the carrier in the conveyer tube short-circuits contacts 31 and applies a positive bias to the grid of 1 whereby the relay 12 is energized to close contacts 13, 14 ; the former provides a holding circuit for the relay across the mains supply through a contact 30 which is also closed by the passage of the carrier, while the latter closes a local circuit for a heavy-current relay, having a surge suppression circuit 24, 25. The duration of the positive bias applied to the grid of valve 1 depends on the capacity of condenser 20 and shunt resistance 21, and its magnitude is proportional to the ratio of capacities of condensers 20 and 11. Resistances 9, 21, 27 serve to limit the anode current to relatively low value soon after closure of contacts 31.
Patent GB-361706-A (GB)
Title: An improved rug for use when travelling or for other purposes
IPC: A41D15/04
Filed: 1931-01-22
Abstract: 361,706. Wearing-apparel. KITTO, C. F., Byeways, Weir Estate, Sunbury-on- Thames, and SAVAGAR, J. G., 107, Upland Road, Sutton, Surrey. Jan. 22, 1931, No. 2212. [Class 141.] A rug for use as an ordinary single or double rug, a foot bag, foot bag and cape, or sleeping bag, comprises a rectangular piece of material a which is provided with sliding fastenings c, c<1> for detachably securing the edges at one end and a portion of the sides to form a bag-like member and similar fastenings d, d<1>, for detachably securing the edges at the other end to form a cape or hood, an opening e being left for the passage of the head. Openings g for the feet and pockets f may also be provided. When not in use for any of the foregoing purposes, the article may serve as a linen bag or the like.
Patent GB-685266-A (GB)
Title: Improvements in or relating to ballast working implements
Inventor: JACKSON CORWILL
IPC: E01B27/14
Filed: 1951-01-30
Abstract: 685,266. Percussive tools. JACKSON VIBRATORS, Inc. Jan. 30, 1951, No. 2302/51. Class 124. A tool blade of a ballast working implement comprises a digging element and a plurality of steps the edges of which are initially perpendicular to the axis of the blade, the digging elements and the steps being separated by recesses of substantial depth and the inner ends of the recesses disposed axially inwardly of the steps adjoining the recesses. As shown, the tool comprises a handle 3, an electric motor and unbalanced weight 2 which set up vibrations in a shank 5 to which the tool blade 10 is attached by a seat 7 and rivets 9. The blade 10 has a digging point 11 at one edge side from which a sloping face 12 terminates in a recess 15 cut diagonally of the blade, and two steps 13 and 14, having faces perpendicular to the axis of the blade, separated by a second recess 15.