baber/WOPTO huggingface dataset:
Patent GB-193382-A (GB)
Title: Improvements in stoves
IPC: F24B5/08
Filed: 1923-01-11
Abstract: 193,382. Mander, H. F., and Sanders, E. G. Feb. 17, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Cooking-stoves; grates; outlets to chimneys; boilers, arrangement of.- A cooking-range comprises a fire-place 3 having two openings 39, 40, one at the end and the other at the side of the stove, either of which may be fitted with fire-bars 38 whilst the other is covered by a. plate 40. The uptake flue 19 is attached to a frame 24 sliding in two pairs of vertical guides 25 on the end and back walls of the stove, so that it may alternatively be made to communicate with one or both of the outlet openings 26 in the end wall when the fire-bars 38 are at the opposite end, or with an opening 27 in the back wall when the firebars are at the front, the openings not in use being covered. The front fire-bars 38 comprise rectangular plates secured to rods 43 mounted in .angle-iron members 44, so that they may be independently rotated to control the draught. The bottom grate-bars 49 have enlarged tapered ends 49a fitting into correspondingly shaped recesses 48 in a frame 9. Between the fire-place and the oven 6 is a boiler 8 with a flue opening 8<a>, behind which is a pivoted damper 34 which directs the gases either wholly to the top oven flue 20 or partly to the flue 20 and partly down through the flue 22. When the outlet flue is arranged over the opening 27 in the back wall a damper 36, Fig. 3, closes the top of the back flue 18 in order to cause the gases to pass entirely over the top of the oven. The upper end of the flue 19 is inclined and provided with metal plates 30 shaped to suit the fire-place to the chimney flue of which it is connected. The legs of the stove may be provided with height adjusting means.
Patent GB-985524-A (GB)
Title: Purification of nitrogenous organic compounds
IPC: B01J39/04
Filed: 1962-01-11
Abstract: Nitrogenous organic compounds of molecular weight 250-2000, containing a basic nitrogen-containing group which forms water-soluble salts with low molecular weight acids, are purified by contacting an aqueous feed solution of a salt thereof-containing organic impurities and inorganic cations-with a weakly acidic cation-exchanger in the alkali metal or ammonium form, which takes up the nitrogenous substance and the inorganic cations; eluting with an aqueous solution of carbon dioxide to remove the inorganic cations; and eluting the nitrogenous substance with an aqueous solution of a strong acid. Specified nitrogenous substances are antibiotics (e.g. streptomycin, neomycin, kanamycin, tetracycline, oxytetracycline, oleandomycin, ethrythromycin, bacitracin and polymyxins), alkaloids (e.g. morphine, codeine, noscapine, papaverine, thebaine, atropine, scopolamine, ergotamine, quinine and reserpine), and procaine. U.S.A.  Specifications 2,319,359, 2,333,754, 2,340,110, 2,340,111 and 2,541,420 are referred to.ALSO:Nitrogenous organic compounds of molecular weight 250-2000, containing a basic nitrogen-containing group which forms water-soluble salts with low molecular weight acids, e.g. relaxin, are purified by contacting an aqueous feed solution of a salt thereof, containing organic impurities and inorganic cations, with a weakly acidic cation-exchanger in the alkali metal or ammonium form, which takes up the nitrogenous substance and the inorganic cations; eluting with an aqueous solution of carbon dioxide to remove the inorganic cations; and eluting the nitrogenous substance with an aqueous solution of a strong acid. U.S.A. Specifications 2,319,359, 2,333,754, 2,340,110, 2,340,111 and 2,541,420 are referred to.
Patent GB-1195601-A (GB)
Title: Mineral Sorting Apparatus
Inventor: REICHEL RICHARD ALAN
IPC: B07C5/36
Filed: 1968-01-09
Abstract: 1,195,601. Sorting, measuring physical properties electrically. INTERNATIONAL SORTING SYSTEMS CORP. Jan. 9, 1968 No. 1271/68. Heading G1N. [Also in Division B2] In apparatus for sorting pieces of mineral according to a given characteristic, such as metal content, the pieces are introduced to the centre of a rotating table 28 having a plurality of channels 29 arranged around its edge through which the pieces are urged by centrifugal force. At the outer end of each channel is a sensor 37 and a sorting flap 33 which is operated to deflect a piece into an inner chamber 27 if the sensor 37 detects the given characteristic in the piece. The pieces are otherwise received in an outer annular chamber 26. A rotatably mounted inertia plate 22 has downwardly projecting plates 23, 24 for crushing any oversize pieces. As shown in Fig. 6, the sensor 37 comprises a coil 36 in the tuning circuit of an oscillator 43 arranged so that passage of piece of mineral having a high metal content near the coil 36 changes the frequency of the oscillator. A second oscillator 45 provides a reference frequency which is mixed with the output of the sensing oscillator to produce constant amplitude pulses 48 at the beat frequency. Normally, that is in the absence of a piece of mineral of high metal content, the potential at point 49 is such as to hold transistor Q2 about half way between cut-off and saturation, and transistor Q3 short-circuits the sorting flap operating means 35. The frequency of the reference oscillator 45 is controlled by a voltage fed to a diode D3, Fig. 7 (not shown), having a voltage dependent capacitance connected in parallel with coil 44 in the tuning circuit of the oscillator 45 to compensate for long term drift. On detection of a piece of mineral having a high metal content, the beat frequency increases thereby raising the voltage at point 49 to saturate transistor Q2 and block transistor Q3, thus allowing the sorting flap 33 to be operated.
Patent GB-304464-A (GB)
Title: Improvements in or relating to dough braking or rolling machines
IPC: A21C1/08
Filed: 1928-01-14
Abstract: 304,464. Jamieson, J. S. Jan. 14, 1928. Rolling-machines. - Frictiongearing is introduced into the driving-gear of dough breaking and rolling machines. The spur pinions A, B, which gear with the driving pinion A, are extended axially and formed with grooved friction surfaces E or separate friction wheels may be secured to the pinion shafts. By rocking the quadrant D through the medium of the hand lever G, either friction wheel E can be put in gear with the driven friction wheel F which drives the rollers of the machine. The movement of the quadrant also rocks the safety guard L through the medium of the linkage H, J, K. Any hard obstruction between the rollers rocks the guard and' operates the quadrant to stop or even reverse the machine.
Patent GB-559804-A (GB)
Title: Improvements relating to footwear
IPC: A43B13/28
Filed: 1943-01-27
Abstract: 559,804. Sole and heel treads. LIBSTEIN, N., LIBSTEIN, S., and LIBSTEIN, D. Jan. 27, 1943, No. 1373. [Class 17 (iii)] A tread for the sole or heel of a boot comprises a frame a cut from scrap rubber impregnated multiply belting, and one or more inserts b cut from scrap woven machine belting, such as hair or balata belting with, optionally, a backing or face layer e split from rubber impregnated belting. The edges c are trimmed and finished by grinding or smoothing and polishing &c.
Patent GB-232333-A (GB)
Title: Improvements in or relating to valve actuating gear
IPC: F01L1/18
Filed: 1924-01-17
Abstract: 232,333. Rudge-Whitworth, Ltd., and Pugh, J. V. Jan. 17, 1924. Actuating-mechanism for overhead valves of internal-combustion engines. A tappet rod works the valve through a lever constructed to have rolling engagement with the, tappet rod, and, if desired, also with its fulcrum. Fig. 3 shows the tappet rod i formed with a conical portion j having a flat end j' which engages with a convex surface g<3> of large radius formed at the bottom of a recess g<2> in the lever g. The convexity may be produced in the recess by means of a punch or die, or may be formed on a separate piece inserted in the recess and having a stem extending through the bottom of the recess, and secured by riveting or by a nut. The contacting surfaces of the tappet rod and lever may be casehardened. The end of the tappet rod may be cylindrical, in which case the recess may be conical.
Patent GB-325076-A (GB)
Title: Improvements in or relating to rotatable fans
IPC: F04D29/28
Filed: 1929-01-15
Abstract: 325,076. Guth, E. F. Jan. 15, 1929. Fan apparatus; impeller blades.-A fan unit consists of a vertical electric motor and a dishshaped fan carrying blades on its concave side. Air is drawn upwardly into the fan and is discharged outwardly and downwardly from the periphery. The disc 7 of the fan is secured to the shaft of the motor 1 by means of a steel plug 9 which is threaded on the shaft. The projection 11 on the plug passes through the disc 7 and the washer 13 and is peened over to clamp the parts together. The blades 23 are formed by cutting the disc and bending the material down as shown. The blades have a slight backward inclination to the vertical, and they are also inclined backward from the radius towards the periphery. Wire rings 27 are welded to the lower edges of the blades and the edge of the disc 7 is beaded. In a modification an electric heating element 33, Fig. 5, is secured at the centre of the disc and heats the air drawn into the fan. In another modification the blades are carried by a series of spokes instead of a disc. Each blade consists of two parts, one part 18 assists in the vertical indrawing movement of the air, the other part 16 directs the air outwardly and downwardly.
Patent GB-1020229-A (GB)
Title: Hinge mountings for doors
Inventor: DIXON JOHN CRISPIN
IPC: E05D7/04
Filed: 1964-01-14
Abstract: 1,020,229. Hinge mountings. PRESSED STEEL CO. Ltd. Jan. 13, 1965 [Jan. 14, 1964], No. 1518/64. Heading E2F. In a hinge mounting for a door comprising two or more pairs of hinged leaves each having a fixed leaf secured to the door post and a pivotal leaf secured to the door, a pad of resilient material, e.g. rubber, is interposed between the fixed leaf of at least one pair of leaves and the door post, the pad being bonded on one face to the fixed leaf and on the opposite face to a backplate. The "set" of the door may then be adjusted to correct sag by adjusting the screws or bolts securing the resiliently mounted leaf to the door post.
Patent GB-787375-A (GB)
Title: Improvements in or relating to the polymerisation or copolymerisation of ethylene
IPC: C08F10/00
Filed: 1956-01-17
Abstract: Catalysts for the polymerization of ethylene (see Group IV (a)) comprise a halide of a Group IV (a), V (a) or VI (a) transition metal and an alkali metal in association or chemical combination with an acetylenic or ethylenic hydrocarbon in amount sufficient to reduce the valency of at least part of the transition metal to below 3. Specified catalyst components are titanium tetrachloride and tetrabromide, zirconium, tetrachloride, potassium, lithium, sodium, sodium acetylide and hydrocarbons such as propylene, butene, isobutylene, hexene, decene, butadiene, cyclohexene, substituted ethylenes, styrene, a -methyl styrene, stilbene, acetylene and phenyl acetylene.  Catalyst complexes are said to be formed and the preferred molar ratios of the components used are given.  The catalyst may be destroyed or removed with n-butanol or acetone/hydrochloric acid.ALSO:Ethylene is polymerized in the presence of a halide of a Group IV (a), V (a) or VI (a) metal and an alkali metal in association or chemical combination with an acetylenic or ethylenic hydrocarbon in amount sufficient to reduce the valency of at least part of the transition metal to below 3. Copolymers may also be obtained, e.g. with the unsaturated hydrocarbon used as activator, and specified hydrocarbons are propylene, butene, isobutylene, hexene, decene, butadiene, cyclohexene, substituted ethylenes, styrene, a -methyl styrene, stilbene, acetylene and substituted acetylenes such as phenyl acetylene.  Transition metal halides used in the examples are titanium tetrachloride and tetrabromide and zirconium tetrachloride and the other catalyst component may be potassium, lithium or sodium, e.g. as the acetylide.  An active complex is said to be formed and the preferred molar ratios of the components used are given. Polymerization may be carried out in bulk or in an inert liquid medium such as benzene, toluene or cyclohexene.  In examples the process is carried out at ethylene pressures of 500 to 1000 p.s.i. Reaction may be stopped (Example (XV)) by the addition of n-butanol. The products are linear and of high density, and may be purified by treating with acetone, acetone/hydrochloric acid, acetone/sodium hydroxide and acetone/water.  Films, wire insulation, fibres and filaments may be obtained.
Patent GB-1127232-A (GB)
Title: Production of copolymer binders for stoving compositions
Inventor: BASHFORD LESLIE ARTHUR
IPC: C08F20/62
Filed: 1965-01-14
Abstract: 1,127.232. Coating. COURTAULDS Ltd. 13 Jan., 1966 [14 Jan., 1965; 3 Feb., 1965; 15 April, 1965], Nos. 1635/65, 4617/65 and 16196/65. Heading B2K. [Also in Divisions C3 and C7] Aqueous storing compositions comprise, as binder, a copolymer obtained by solution polymerising at least one component from each of the groups: (a) styrene, vinyl acetate and methyl and ethyl acrylates and methacrylates, (b) alkyl acrylates and methacrylates having at least 3 carbon atoms in the alkyl group, (c) N-alkoxymethyl-acrylamides and-methacrylamides, (d) acrylic, methacrylic and itaconic acids, and optionally (e) 2-hydroxyethyl and 2-hydroxy-n-propyl acrylates and methacrylates; the copolymer being converted to watersoluble form by neutralising with a base, e.g. ammonia or an amine. The compositions may also include a water-miscible alcohol or etheralcohol and a pigment. e.g. titanium dioxide (rutile). The composition is applied to a substrate by conventional means, e.g. dipping, spraying or brushing, and stoving is generally effected at 120‹-160‹C. In an Example, the substrate is a metal panel.
Patent GB-881476-A (GB)
Title: Improvements in or relating to ceramic dielectric materials
Inventor: FRANCOMBE MAURICE HUBERT
IPC: C04B35/497
Filed: 1958-01-17
Abstract: A ferroelectric ceramic material consisting of lead barium metaniobate is prepared from a mixture of powdered monoxide, carbonate or oxalate of lead; oxide, carbonate or oxalate of barium; and inobium pentoxide to give a product of Pb(1-x) Ba(x) Nb2 O6 where x lies between 0,25 and 0,6.  The mixture is prepared at a temperature between 850 DEG C. and 1150 DEG C. in a non-reducing atmosphere for 2 or 3 hours, pulverized, compacted, and heated to between 1270 DEG C. and 1320 DEG C. in a non-reducing atmosphere for up to 30 minutes.  In one method the lead metaniobate and barium metaniobate are first separately preformed by heating mixtures of the constituent oxides to 850 DEG C. and 1000 DEG C. respectively.  In one example Pb0,7 Ba0,3 Nb2 O6 is prepared by heating a mixture of PbO, Nb2 O5 and Ba CO3 in appropriate proportions, with camphor in diethyl ether as a binder, in air. The material is then crushed, pressed into discs, heated up to 1280 DEG C., and cooled slowly.  The addition of the barium to lead metaniobate has the effect of reducing the Currie temperature, facilitates formation of silver electrodes, and enables polarization to be carried out at a higher temperature by applying a 20 kv./cm. field to silvered discs in silicone oil at 250 DEG C. The material may be used in accelerometers for use at elevated temperatures, and generation of ultrasonic vibrations.  A table is provided giving electrical characteristics of various materials according to the invention, including the electromechanical coupling coefficient in the radial mode and the variation of permittivity with temperature.  Specifications 787,352, 812,343 and 828,066 are referred to.
Patent GB-541829-A (GB)
Title: Improvements relating to the crosshead gear of internal combustion engines
IPC: F02B75/28
Filed: 1941-02-10
Abstract: 541,829. Two-stroke engines. MICKELSEN, V., and REBBECK, F. E. Feb. 10, 1941, No. 1727. [Class 7 (ii)] [Also in Group XXVI]  In an engine having the cylinder or liner 1 made separate from the main engine framing 2 and having crosshead gear for guiding the end of an eccentric rod 8 or connecting rod operatively connected to the crankshaft 7, the crosshead 9 slides on the external surface of the lower end of the cylinder or liner or of a coaxial extension 14 thereof. As shown, the engine has a main piston 3 connected by a connecting- rod to the main crank 5, and an auxiliary or exhaust piston 4 on a yoke 13 connected by rods 12 to thecross-head 9, which may be solid or built up in sections. Eccentric rods 8 operative on eccentrics 6 engage slots 11 or pockets in the crosshead and are attached by pins 10, the bore of the crosshead being recessed at 17 to facilitate fitting the pins. The extension 14 is preferably bolted to the liner 1, scraping rings 16 being fitted to engage the surface of the piston, and a scraper box 15 may be fitted around each rod 12.
Patent GB-210092-A (GB)
Title: Improvements in and relating to induction relays and other time-limit electrical apparatus
IPC: H02H3/093
Filed: 1924-01-22
Abstract: 210,092. British Thomson-Houston Co., Ltd., (Assignees of Hall, C. I.). Jan. 22, 1923, [Convention date]. Induction relays.-The time-characteristic of an inverse time-limit overload relay of the induction type is improved, so that greater selectivity is obtained for a number of relays in series in the event of a heavy overload, by employing a non- saturated core energized by the supply current and so arranged that an increased leakage flux in relation to the driving flux and varying directly with the current is produced therefrom to cut the disc and produce a retarding torque which increases with the speed of the disc. As shown in Fig. 1, the relay comprises the usual disc 1 on the spindle 2 controlled by the spring 11 actuated by the driving magnet 3 having an energizing coil 25 and shaded poles 3<a>. The poles are longitudinally and rotation ally adjustable on pins at the ends of the magnet; the rotational adjustment may be made, as shown, by a worm-wheel 54 acting through a gear wheel 54<1>. The coil 25 is subdivided into a main single central portion and additional portions which have half their turns on either side of the main portion so as to maintain the central symmetry. The various windings are brought out to a small plug board 41 so that, by means of a plug 61, the central portion alone, or the central portion together with any or all of the additional windings connected in parallel therewith, may be utilized as the energizing winding. By suitable choice of the coils to be energized, the relay may be adapted to circuits of different normal amperage. The disc is held in its normal position, against the action of the spring 11, by a pin 9 on the gear-wheel 7 abutting against the back-stop 10. This stop is adjustable over the scale 13 and its position determines the necessary travel of the disc before the stop presses together contacts 14, 15, which are electromagnetically maintained, and close the tripping circuit. Serrations of progressively increasing depth are formed in the disc to give gradually increasing torque, thereby compensating for the increasing control torque of the spring 11. The serrations cease at the correct point to supply the final increased torque for the switching movement. The driving magnet lies over a chord of the disc and a leakage flux, producing a retarding torque proportional to the square of the current and to the speed of the disc, always cuts the disc. Due to this leakage flux, the increase in the time of action of the relay is made greater for large overloads and smaller for small overloads than can be obtained with the retardation due to the usual permanent magnets 4, 5 alone.
Patent GB-1012580-A (GB)
Title: Pneumatic closure for multicompartment receptacle
IPC: B28C7/00
Filed: 1964-02-28
Abstract: 1,012,580. Pneumatic closure; skips; flexible containers. GENERAL TIRE & RUBBER CO. Feb. 28, 1964 [March 1, 1963], No. 8381/64. Headings B8D, B8H, B8K and B8T.  A multi-compartment receptacle having outer and inner compartments has a pneumatic closure comprising: a frame forming inner and outer throats; inflatable bags mounted to the frame and arranged to seal the throats when inflated; and valved conduit means leading to the bags for introduction or release of gas. The receptacle, Fig. 1, has outer and inner walls 1, 5 of fabric reinforced rubber defining the two compartments 6, 7, and is provided with a pneumatic closure A. The closure, Fig. 2, comprises a frame with outer and inner rings 11, 23 joined by rods 22. Mounted in the closure is a cylinder 28, provided with a valve 31 for introducing compressed air and a one shot release valve 32. The cylinder is in communication through a boss 35 to an annular rubber bag 33 secured to the cylinder, and through a pipe 42 to a similar outerbag 38 secured to the inner ring. When the bags are inflated the outer bag engages the ring 11 to seal the throat of the outer compartment, while the throat of the inner compartment is sealed by engagement of the two bags. In the embodiment of Fig. 6, the inner compartment is sealed when the inner bag 65 engages the ring 54; and the release valve 80 is on the outer ring. The contents may be discharged when the receptacle is inverted and hung by the hook 9, Fig. 1, and the bags deflated to the position shown by dashed lines in Fig. 6.
Patent GB-1218533-A (GB)
Title: Improvements in methods for the protection of concrete roadways againts damage due to the use of salts
IPC: C09K3/18
Filed: 1969-01-13
Abstract: 1,218,533. Coating concrete roads. HUILERIES ALSACIENNES S.A. 13 Jan., 1969 [17 Jan., 1968], No, 1864/69. Heading E1G. A method of protecting a concrete roadway from salt corrosion when the road bears the remains of a previous elastomeric coating is characterised by an initial treatment with a composition comprising blown oxidised boiled linseed oil, lead manganese and cobalt salts, and an aromatic or chlorinated solvent in an amount sufficient to dissolve the old coating remnants to a fluent product which penetrates the concrete. Preferably the solvent is trichloroethylene, xylene, or toluene. The road may then be treated with a known composition similar to that above but in which an aliphatic solvent is used, as disclosed in French Patent Specification 1526001, this composition being applied in two stages at different application rates.
Patent GB-1249792-A (GB)
Title: Improvements relating to agitator mills
IPC: B01F27/93
Filed: 1970-01-14
Abstract: 1,249,792. Ball mills. DRAISWERKE G.m.b.H. 14 Jan., 1970 [14 Jan., 1969], No. 1869/70. Heading B2A. A vertical agitator-type ball-mill of the kind having a shaft 3 with stirrers 4 rotatable in a jacketted vessel 1, containing media of 0.2 to 3 mm. in size, further comprises a non-grinding zone at the top 6 of the mill which is free from stirrers 4 and is provided with an assembly 10 guide blades 11, to slow down the motion of the grinding media and material and thus prevent frothing. The mill has an outlet 8 above a cylindrical screen 5. The guide blades may be secured on a ring 15 or be fixed to a tubular part 6'. The blades may arranged tangentially to the shaft 3, Fig. 2, or be in the form of a helical strip.