baber/WOPTO huggingface dataset:
Patent GB-139568-A (GB)
Title: Improvements in and relating to helical toothed gearing
IPC: F16H1/22
Filed: 1919-01-31
Abstract: 139,568. British Thomson - Houston. Co., (General Electric Co.). Jan. 31, 1919. Toothed gearing.-In helical toothed reducing or multiplying gearing for use with ships' turbines &c., the high-speed shaft 5 carries right and left hand helical pinions 7, 8, one or more of each hand, and intermediate shafts 14, 18 carry helical wheels 12, 16 gearing respectively with pinions of opposite hand, and also carry helical or other pinions 13, 17 gearing with wheels 9 on the lowspeed shaft 10. A coupling 21 connecting the shaft 5 with a shaft 20 allows axial adjustment of the shaft 5 to equalize driving-pressure on the teeth. The wheels 12, 16 may slide on their shafts, or the shafts may be divided and their ends connected by couplings allowing relative rotary adjustment in order to equalize driving- pressure between the wheels 12, 13 and 16, 17. End thrusts on. the shafts 14, 18 is balanced by fluid pressure supplied through pipes 23. In a modification, one pinion 7 and one pinion 8 only are used, and the shafts 5, 10 are out of alinement, the pinions 13, 17 not being on diametrically opposite sides of the wheels 9. Some or all of the wheels may be of the type described in Specification 28804/10.
Patent GB-1523853-A (GB)
Title: Ceramic rotor for a rotary internal combustion engine
IPC: F01C19/08
Filed: 1977-05-12
Abstract: 1523853 Rotor for a rotary positive displacement device CATERPILLAR TRACTOR CO 12 May 1977 [25 June 1976] 02519/77 Heading F1F A rotor for a rotary I.C. engine has a body comprising a ceramic material and metallic grooved inserts in the rotor body for receiving spring-biased seals for sealingly engaging the walls of a chamber in which the rotor is mounted. The rotor may be for a trochoidal engine and the metallic inserts may be arranged to form a "cage-like" structure placed in torsion on the body which is thus pre-stressed in compression.
Patent GB-648985-A (GB)
Title: Improvements in and relating to expansible bracelets
IPC: A44C5/08
Filed: 1948-01-28
Abstract: 648,985. Bracelets. MONTRES ROLEX SOC. ANON. Jan. 28, 1948, No. 2537. Convention date, Feb. 5, 1947. [Class 43] An expanding bracelet comprises a number of units, 1, 1<SP>1</SP>, each hinged to a link 3 slidable in an adjacent unit and each housing a coiled spring 8, which has an arcuate axis; the ends of the spring bear against the unit, while the middle is attached to the link of the adjacent unit so that the spring is pulled towards the centre of its arc when the bracelet is expanded. A pivot pin 4 in the rounded end 6 of a U- section plate-like link 3 is located adjacent a side aperture 7 in a flat box-like unit 1<SP>1</SP>. A coiled spring 8 is introduced into the other end of the link 3, and after bending the ends of the spring towards the link the spring-carrying end of the link is introduced into an adjacent unit 1 through a side aperture 7<SP>1</SP> thereof, the spring finally taking an arcuate form since its expansion is limited by the ends of the unit. Expansion of,the bracelet results in the spring 8 being pulled into the position 8<SP>11</SP>. The units and links may be stamped from sheet metal. The Specification as open to inspection under Sect. 91 comprises also an embodiment in which each link 3, Fig. 2 (Cancelled), consists of a U-shaped member, the rounded part 6 of which houses, two trunnions 4,'Fig. 4 (Cancelled), held apart by a coiled spring 5, compression of which allows insertion of the assembly into a unit 1<SP>1</SP> through the side aperture 7, while the open end of the link is provided with a lug which is bent round the middle of a coiled spring 8. A bar, which lies between the arms of the link 3 and has its ends held by the spring 8 against the edges of the aperture 7<SP>1</SP> in the unit 1, prevents the link from being pulled out completely during expansion of the bracelet. This subject-matter does not appear in the Specification as accepted.
Patent GB-801752-A (GB)
Title: Improvements in or relating to the production of layers by settling materials from liquid suspensions
Inventor: SEATS PETER
IPC: C03C17/22
Filed: 1954-01-29
Abstract: Method of producing a layer, particularly a luminescent layer for cathode-ray tubes, lamps or X-ray apparatus, on a support comprises settling particles of a material on the support from a liquid suspension thereof, the liquid suspension containing an alkali metal silicate together with a soluble strontium salt and the total solid content of the silicate in the liquid being in excess of 0.75 grs. per litre.  The silicate can be potassium silicate present to the extent of 1.23 or 6.15 grs. per litre. The strontium salt can be the nitrate.  Preferably a large volume of dilute strontium salt is employed with a small volume of concentrated silicate.  Quantities are specified and the amount of strontium salt varies with the temperature.  The settled material can be luminescent zinc sulphide and zinc cadmium sulphide. Specification 658,252, [Group XV], is referred to.  Reference has been directed by the Comptroller to Specification 709,994, [Group XV].
Patent GB-548050-A (GB)
Title: Improvements in or relating to manufacture of magnesium compounds
IPC: C01F5/32
Filed: 1941-02-28
Abstract: 548,050. Magnesium chloride. BAXTER, J. P., MITCHELL, J. A. M. W., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 28, 1941, No. 2733. [Class 1 (iii)] [Also in Group XXXVI] Anhydrous magnesium chloride is produced by bringing into a bath consisting of, or containing, molten magnesium chloride, an oxygen-containing magnesium compound, chlorine and sulphur or a sulphur chloride. The oxygen-containing magnesium compound may be the oxide, sulphate or carbonate; when the sulphate is used a reducing agent, e.g. carbon, should be added. The bath may contain alkali metal chlorides to reduce the melting point. Magnesium chloride may be removed as it is produced, the level in the converter being kept up by the addition of fresh magnesium compounds, e.g. magnesium oxide. The anhydrous chloride produced may be passed to an electrolytic cell for production of magnesium, the chlorine evolved being returned to the converter for the production of the anhydrous chloride. The converter is constructed of steel lined with magnesite blocks and may be heated by alternating current through immersed electrodes.
Patent GB-138166-A (GB)
Title: Improvements in exhaust silencers for internal combustion engines
IPC: F01N13/18
Filed: 1919-02-04
Abstract: 138,166. Robertson, H. S. Feb. 4, 1919. Exhaust-silencers.-A silencer for motor-vehicle or aircraft engines consists of one or two tubular expansion chambers a tapering at the inlet end and having a tapering rear end b with one or more diverging outlet tubes d. The tubes a are fitted with coils f of corrugated iron. In the form shown, a pair of tubes a are connected to the exhaust pipes c and to a chamber b tapering rear. wardly and fitted with the tubes d. The chamber b is formed by a circular tube b' with perforations b', Fig. 2, ovar which is fitted a V-shaped member b<3> carrying the outlet tubes d. The tubes a may converge towards each other at the rear to enable a shorter chamber b to be used.
Patent GB-122929-A (GB)
Title: Rear Axle Speed Change Gear for Motor-vehicles.
Inventor: CANHAM ARTHUR GOODCHILD
IPC: F16H3/36
Filed: 1918-02-18
Abstract: 122,929. Canham, A. G. Feb. 18, 1918. Toothed pinions C alternatively drive rows of teeth or pins B on a disk A. The pinions C are in halves formed with mating recesses which, when the halves are pressed together, engage the pins B. The parts of the pinions are pressed together by springs and are separated by wedges &c. I.
Patent GB-1412200-A (GB)
Title: Sound reproducing apparatus
IPC: G11B25/04
Filed: 1973-01-19
Abstract: 1412200 Gramophone S A PLATT 19 Jan 1973 [19 Jan 1972] 2901/73 Heading G5R A manually driven acoustic gramophone includes a sound board 92, carrying stylus 120, which is attached by a resilient pad 99 to the upper part of the diagonally cut end 89 of a tube 80 which is mounted at its other end on an assembly including pins 72, 76 for horizontal and vertical pivoting of the tube. The mounted end of the tube enters a box 20 via an aperture 24 which allows pivoting of the tube and the box is provided with a pair of holes 22 into which tubes 23, 25, connected to hollow ear plugs 27, 28, can be inserted. The record turntable 37 is mounted on a conical spindle 30 which is secured to the gramophone base member 12 and the record 50 is rotated manually, e.g. by means of a pencil inserted in aperture 54. The base member, the gramophone case 13, 14, 18, the box 20, tube 80 and sound board 92, can be made of cardboard material or from moulded plastics material.
Patent GB-687479-A (GB)
Title: An electro-hydraulic control system
IPC: G05D1/00
Filed: 1949-02-02
Abstract: 687,479. Fluid-pressure servomotor-control systems. ELECTRO-HYDRAULICS, Ltd., MACKENZIE, M. A., and BURNS, R. H. April 4, 1950 [Feb. 2, 1949], No. 2923/49. Class 135. In an automatic or semi-automatic aircraft pilot control wherein signals are applied to an electric motor which controls a valve controlling, in its turn, a fluid-pressure system, the motor is constantly running and its speed is determined by the signals, and the valve is responsive to the motor speed to control the volume of fluid passing through it. In an embodiment, electrical signals from lines 2, 3 are applied to solenoids 112, 113 to actuate valves 108, 109 which select the particular control valves 67, 68 to be brought into action and so determine the direction of flow to and from the double-acting servopiston 78. At the same time the electrical signals are applied to and control the speed of a motor 8 driving a pump 9 which gives an output corresponding to the speed of the motor and, hence, to the applied signal. The output from the pump acts on a piston connected to a valve 10 controlling the flow of pressure liquid from a pump 101 through the valves 67, 68 to the servo-piston. The servo-piston actuating valve 10 is provided with a follow-up device consisting of a leak port co-operating with a fixed needle valve. Normally the electric motor 8 is constantly rotating and has a constant component of excitation on which the signal is superimposed. In a modification, the electric motor actuates a centrifugal governor connected to a piston type valve which controls a piston connected to the valve 10, the last-mentioned piston providing a seat for the piston-type valve so as to give a follow-up control. The centrifugal governor may actuate the valve 10 directly. According to the Provisional Specification, the motor may be excited by the signal in which event it will not be constantly running.
Patent GB-974109-A (GB)
Title: Variable speed power transmission arrangements
IPC: F16H47/00
Filed: 1961-01-26
Abstract: 974,109. Variable-speed gear. W. J. FRY. Jan. 26, 1961 [Jan. 29, 1960], No. 3069/61. Heading F2D. A variable-speed planetary gear has an inertia mass in the form of a liquid, or of particles suspended in liquid, carried in tubes fast with its planetary pinion. In one form, an input shaft 11, Fig. 2, carries a fork 13 journalling a spindle 19 fast with a bevel planet pinion 21 meshing a bevel sun gear 25 fast on an output shaft 27, and nested tubes 39, 41 rotating with the planet spindle transmit liquid, e.g. mercury, or another liquid containing suspended particles, between chambers 29, 31. An idle disc 23 balances the planet pinion 21. In a modification, Fig. 5 (not shown), the idle disc is replaced by an additional planet pinion journalled freely upon the planet spindle, to mesh both a sun-gear fast on the driven shaft and the toothed end face of an extra fork carried by the input shaft. In another modification, Fig. 11 (not shown), the tubes 39 feed into finned cooling chambers carried on the outer surfaces of the driving fork arms. The planetary gear transmits drive only from the input to the output shaft, and not in the opposite direction. In an arrangement permitting reversal of the direction of drive transmission between two shafts, Fig. 12 (not shown), two oppositely-arranged planet gears as described are disposed on two parallel sets of shafts interconnected by two simple trains of spur gears. In another modification, electromagnet armatures 77, 79; 78, 80, Fig. 10, are energized to adjust the flow of liquid, e.g. mercury &c., through the tubes 39, and electrodes 110, 111 are similarly energized to transmit current through the liquid and adjust its flow. Current flow in the armature solenoids and through the electrodes is induced by energizing coils 85 carried by the input fork to produce a field in which coils 90 on the spindle are rotated by the motion of the planet pinion 21.
Patent GB-1142233-A (GB)
Title: Method of preparing monoalkyl phenol compounds
IPC: C07C37/14
Filed: 1967-01-20
Abstract: 1,142,233. Alkyl phenols. THOMPSONHAYWARD CHEMICAL CO. 20 Jan., 1967 [24 Jan., 1966], No. 3085/67. Addition to 1,130,272. Heading C2C. The invention relates to a method for preparing monoalkyl phenol compounds of the general formula. wherein X is an alkyl group having from 3 to 24 C atoms; which comprises: (A) Incorporating into the phenol starting material from 0À1 to 10% by weight of a catalyst agent; (B) Elevating the temperature of the resultant mixture to a temperature in the range 70-100‹ C. in the absence of oxygen; (C) Alkylating the mixture by adding thereto in the absence of oxygen and at the elevated temperature not more than a stoichiometric amount of an olefin reagent having from 3 to 24 C atoms in the molecule; (D) Removing before cooling from the alkylated mixture excess reactants and the catalyst agent; and (E) Cooling the resultant product prior to exposure thereof to oxygen to a temperature below 50‹ C., to yield the desired mono alkyl phenol compound. The catalysts may be volatile acid catalysts or volatile metal halide catalysts.
Patent GB-686377-A (GB)
Title: Improvements in or relating to methods and apparatus for evaporating milk
IPC: A23C1/12
Filed: 1949-02-04
Abstract: A process for concentrating milk comrises evaporating the milk at a temperature of about 140 DEG F in evaporators 11, 23, 40, by the heat of condensation of a refrigerant and condensing the evolved water vapour in a condenser 69 by the evaporation of the refrigerant, means being provided for rejecting excess heat from the refrigerant system. Refrigerant cycle.  Gaseous refrigerant from a compressor 61 flows by pipes 17, 16 to the tube-chests of the milk evaporators <PICT:0686377/III/1> <PICT:0686377/III/2> 1,, 23, 40 wherein the refrigerant condenses and flows by way of a pipe 19 to a water-cooled condenser to complete the condensation. The liquid then passes through a further water-cooled unit 65 and then flows by a pipe 67 to an expansion valve 68 and receiver 66 connected to the compressor by a pipe 73 and to the tubes 72 of the water-vapour condenser 69 by pipes 74, 76.  Here the refrigerant evaporates and is withdrawn to the compressor.  The cooling water for units 63, 65 is circulated by a pump 82 and the volume of water is throttled by a member 84 in accordance with the pressure in pipe 17 communicated by way of elements 85, 86. Alternatively, when the pressure in pipe 17 rises, this rise may admit cold water to a chamber communicating with the water-vapour in condenser 69 and the load on the compressor is reduced by the refrigerants not having to condense all the evolved water-vapour.  Milk-cycle.  Milk flows into a chamber 31 by a pipe 32 and runs down a spiral 33 where de-aeration is effected, the chamber being under vacuum by a pump 34.  A pump 361 forces the milk through a pipe 36 to the top of a hood 20, joining the top of the evaporator 11 to a top cylinder 21, whence it flows through a pipe 29 to a space 30 at the bottom of the evaporator 11.  Milk boils up the tubes 12 into the cylinder 21 which is fitted with a baffle 27.  Liquid flows again down the pipe 29 for recirculation and water-vapour flows through an aperture in the end wall of the cylinder and through a conduit 26 to the water-vapour condenser 69.  From the sump 28 of the cylinder 21 some milk flows by a pipe 38 to the pipe 29 of the next evaporator 23 which functions in all ways like the evaporator 11 but with more concentrated milk. From the evaporator 23, milk flows by a pipe 60 to a pump 48 which forces it to the top of evaporator 40 in which it flows down the tubes to be recirculated by pump 48, some being withdrawn by a final discharge pump 57.  The evaporator 40 has a vapour cylinder 41 connected to conduit 26 by a conduit 44. Condensed water-vapour from the condenser 69 collects in a tank 78 and ejectors 80, 81 for non-condensed gas are provided.  Various combinations of the up-flow evaporators 11 and the down-flow evaporators 40 may be used Evaporator 40 is described in Specification 682,170.  Specifications 686,375 and 686,376 also are referred to.
Patent GB-877823-A (GB)
Title: Improvements in or relating to combustion chambers
Inventor: MILLER KENNETH
IPC: F23R3/60
Filed: 1959-01-29
Abstract: 877,823. Generating combustion products under pressure. ROLLS-ROYCE Ltd. Jan. 22, 1960 [Jan. 29, 1959], No. 3175/59. Class 51 (1). A combustion chamber provided with means for directing cooling air on to the internal surface of the wall of the chamber has control means for increasing or decreasing the supply of cooling air directed on to the said internal surface on increase or decrease respectively of the temperature of the wall. A flame tube 14. (one of several) disposed between outer and inner casings 15, 16 comprises axial components 18-21 between the adjacent ends of which are arranged corrugated ring members 22. Some of the air flowing along the annular passage 17 between the flame tube 14 and the casings 15, 16 is directed between the corrugations of the member 22 along the inner surface of the wall of the flame tube 14. The flame tube is fixed to the casing 15 at its downstream end by a pin joint 37 and its upstream end is slidably supported by a ring 31 sliding on a ring 30 attached to a substantially frusto-conical member 28 secured to a casing portion 23. Similarly a ring 32 supported by webs 33 on an outwardly flared member 27 lies within and bears against a ring 34 which is attached to a frusto-conical member 35 mounted within the upstream end of the flame tube portion 18. Attached to the member 28 is a tube 25 containing a fuel spray nozzle and a diffuser 38 which imparts a swirling motion to the primary air flowing therethrough. The outwardly-flared member 27 is attached to the downstream end of the tube 25 and lies within the frusto-conical member 35 so that thermal expansion and contraction of the flame tube 14 will cause the gap x between the member 27 and the ring 34 to increase and decrease thus varying the quantity of cooling air flowing from an annular space 36 over the inside surface of the wall of the flame tube. Air enters the space 36 through a perforated curved sheet metal member 43 from a substantially annular space 29 between the tube 25 and the member 28. In a modification the diffuser 38 is eliminated and primary air is introduced between a burner cone and a surrounding flared tube.
Patent GB-197011-A (GB)
Title: Improvements relating to tobacco pipes and to their manufacture
IPC: B27M3/26
Filed: 1922-02-03
Abstract: 197,011. Beanes, F. E. V. Feb. 3, 1922. Tobacco pipes. - Tobacco-pipe bowls are carbonized by the heat radiated from a heated mandrel. A mandrel m of similar shape to the pipe bowl but of smaller size is formed on, or attached to, each of six radial arms i on a turret e sliding in grooves u on the bed of a lathe and actuated by a lever f and a link h, stops w being provided. Five of the mandrels are heated by burners supplied with gas and air through pipes o, r respectively, and contained in an annular, asbestos-lined and ventilated casing k having slots to receive the radial arms. In operation, the pipe, having first been stoved in an oven, is held in a rotating chuck c, and a freshly-haated mandrel, brought opposite to it by rotating the turret e, is caused to enter the bowl, without touching it, by pressing the lever f. The mandrels may be heated by internal gas jets or by electrical or other means, and may be made shorter than the bowls to leave an uncarbonized portion at the top. Alternatively, this portion may be turned after carbonizing by a tool which, according to the Provisional Specification, may be carried on the lathe turret.. The carbonization process may be repeated and the pipes may undergo further finishing processes. Specification 178,788 is referred to
Patent GB-128522-A (GB)
Title: Improvements in or connected with Aerial Ropeways.
Inventor: REDFERN CHARLES GEORGE
IPC: B61B12/10
Filed: 1919-02-10
Abstract: 128,522. Redfern, C. G., (Ceretti & Tanfani Soc. Anon.). Feb. 10, 1919. Rope railways.-Terminals and stations for ropeways are composed of twin units each comprising an iron dismount.able frame carrying a motor c, driving and reducing gear e, and brake gear i. A double-grooved pulley l is fixed on a shaft h which also carries a loose pulley m, the shaft h thus acting as driving-shaft and countershaft. The ropeways have either two track cables and one hauling-cable or only one conveyer cable, and may operate continuously, intermittingly, or to and fro. Gripping and releasing devices may be provided for the carriers which may have automatic locking-devices. Each motor may drive the cable of the adjacent section, or, at terminals, both motors may drive the same cable. The units may be placed at an angle to each other.
Patent GB-213885-A (GB)
Title: Method of enamelling wire
IPC: C23D3/00
Filed: 1924-02-07
Abstract: 213,885. Compagnie GÚnÚrale des Cables de Lyon, (Assignees of Compagnie GÚnÚrale d'ElectricitÚ). April 5, 1923, [Convention date]. Wire.-Copper and other wires which are to be enamelled, particularly those for electrical purposes, are made smooth by coating them with silver or a similarly ductile metal before they are drawn.
Patent GB-1483551-A (GB)
Title: Photographic binder composition and photographic material
IPC: G03C1/047
Filed: 1975-01-24
Abstract: 1483551 Photographic binder composition FUJI PHOTO FILM CO Ltd 24 Jan 1975 [24 Jan 1974] 3291/75 Heading G2C A photographic binder composition for use in an antiadhesive, non-stick layer for a photographic material comprises colloidal silica and one or more binders, at least 40 wt. per cent of the total binders being acid-processed gelatine, i.e. gelatine obtained by acidic processing as distinct from alkaline processing. Other binders which may be present include alkaliprocessed gelatine, synthetic polymers such as polyvinyl alcohol and cellulose derivatives, and the binder may also contain hardeners, matting agents and lubricants. The binder may be used in a light-sensitive silver halide layer but is preferably used in a surface layer e.g. the protective or backing layer of a silver halide colour material or a layer of an imagereceiving sheet for use in an image transfer process.