baber/WOPTO huggingface dataset:
Patent GB-891620-A (GB)
Title: Improvements in or relating to card clothing for carding machines
Inventor: FRASER HUGH
IPC: D01G15/84
Filed: 1959-10-23
Abstract: 891,620. Cards, wire. GIDDINGS & LEWISFRASER Ltd. Oct. 13, 1960 [Oct. 23, 1959], No. 35950/59. Class 120(3) Card clothing consists of a rigid base 3 in the form of a segment of a hollow cylinder from which metallic pins 4 project in such manner that the projecting portion of each pin forms with the face of the base a fillet 5 which merges with a groove 6 extending axially of the face. It is stated that in the operation of a clothed roller, fibrous material falls from between the pins 4 instead of lodging therearound.
Patent GB-175494-A (GB)
Title: Improvements in crank pin turning tools
IPC: B23B5/06
Filed: 1920-12-23
Abstract: 175,494. Weber, A. Dec. 23, 1920. Turning crank-pins.-A tool for turning crankpins comprises a body 1 with an angular graduated extension 2 carrying an adjustable bracket 6 for holding the work 23. A tool carriage 9 is slidable in a groove 7 in the body 1, is adjusted by a screw 16 having a graduated head. and is locked by a screw 15. A transverse groove 10 carries a tool 11 clamped by a member 12. An additional rest comprising an adjustable screw 20 with a V-grooved swivel top 21 is provided. When the pin 23 revolves in a circle, the crank-shaft being mounted in a lathe, the body 1 has a connecting-rod motion, and its end may slide in a guide 26 pivoted to a bracket 30 screwed to the bed of the lathe, or the body 1 mav rest and slide upon one of the guides of the lathe with its end in engagement with the end of the saddle. Obliquity of the crank-pin is rectified by the use of the guide or, in the absence of a guide, by moving the saddle engaging the body 1 a distance equal to one-half the consequent movement of the end of the body. Portable turning-apparatus.-The crank-shaft may be held in a vice and the tool hand operated. Tools.-The tool 11 is of the special form shown.
Patent GB-1318156-A (GB)
Title: Current detector for signalling and like systems
IPC: H04Q3/42
Filed: 1971-07-30
Abstract: 1318156 Automatic exchange systems COMPAGNIE INDUSTRIELLE DES TELCOMMUNICATIONS CIT - ALCATEL 30 July 1971 [30 July 1970] 36027/71 Heading H4K In a resistive dialling system, magnets static relays each responsive to a particular current range are utilized for analysing the line current and a lock-out circuit is provided for ensuring that only one relay is operative at any one time The relays, of which only four are required, incorporate transistors which ensure that they only provide a significant output in response to the application of a particular finite range of current, further details of such relays being given in Specifications 1,094,533 and 871,623. The number sender connects two resistors to line in response to depression of a key and the receiver determines the values of these resistors in turn by reversing the line polarity between successive measurements. Theoretically, the line current range corresponding to each resistor should lie uniquely within the current responsive range of a particular relay but due to various factors (not including line length which can be compensated for) it is possible that the actual line current may lie near the upper end of one relay's range where it overlaps the lower end of another relay's range. In order to prevent any ambiguity in such a situation, it is arranged that the output of each relay is applied via decoupling diodes as in inhibit to the input of all other relays effective in higher ranges than itself whereby it is positively ensured that only the relay effective in the current range immediately below the actual current will respond. The output is applied via a transistor gate as a control input to the gate electrode of an SCR. For each digit determination the transistor gates are prepared by two short pulses which are generated firstly by the relapse of a dialling relay in response to the depression of a key in the number sender and secondly by the delayed operation of a slave relay which causes the line polarity to be reversed. As a result of the final energization of two out of four SCRs following the line polarity reversal an indication of the digit dialled may be passed to a store. In the event that the same value resistor is connected to line for both current directions the lack of response by a second SCR is noted by a further electrostatic relay which then supplies an output so that in reality, the circuit output leads are finally always marked in a conventional 2 out of 5 code. The restoration of the sender's key brings up the dialling relay so as to release all the operated devices in the receiver.
Patent GB-326210-A (GB)
Title: Improvements in or relating to the manufacture of goods of rubber or similar material
IPC: C08J5/02
Filed: 1928-12-07
Abstract: 326,210. Dunlop Rubber Co., Ltd., Chapman, W. H., Pounder, D. W., Murphy, E. A., and Purkis, F. T. Dec. 7, 1928. Latex, treating.-To preserved aqueous dispersions of rubber or the like is added a salt of hydrofluosilicic acid, or if the dispersion contains ammonia free hydrofluosilicic acid itself. This increases the viscosity or causes gelling on heating or on standing in the cold according to the amount of silico-fluoride added. Zinc oxide may he added as an activator to accelerate the gellins. The silico-fluoride may be added in the form of an aqueous dispersion or as a powder, the amount varying from 0.1 per cent (on the rubber) to increase the viscosity to 1.3 per cent to cause gelling in the cold. The dispersions may be prepared as described in Specifications 219,635 and 290,313.
Patent GB-1033205-A (GB)
Title: Improvements in seawater desalting briquets
IPC: C02F1/00
Filed: 1963-09-13
Abstract: The process of the parent Specification is modified in that the mixture is brought to a temperature of 120-200 DEG  C. and is compressed into briquets while the mixture is maintained within the range of 70 DEG  to 200 DEG  C.
Patent GB-429781-A (GB)
Title: Improvements in vibratory electric motors
IPC: H02K33/04
Filed: 1933-12-27
Abstract: 429,781. Reciprocating-saw machines. YOUNG, W. H., 2400, Bellevue Avenue, Detroit, Michigan, U.S.A. Dec. 27, 1933, No. 36379. [Class 145 (ii)] [See also Group XXXV] The resilient armature of a re ciprocating motor has a natura vibration perioc synchronous with the supply cur rent, its mid portion being disposed in the electromagnetic field while its ends are resiliently supported. As shown, the ends of the spring metal armature 5 are held in slots in rubber members held by resilient arms 9<a> located on each side of the electromagnet which has a U -shaped core 2 carrying a pair of coils 3 energized by alternating or pulsating current. The armature may actuate a saw blade 13 and the members 12 may be arranged to allow the armature to move as a whole through a limited distance. Specification 429,780 is referred to.
Patent GB-731150-A (GB)
Title: Improvements relating to injection moulding machines
IPC: B29C45/23
Filed: 1953-12-31
Abstract: 731,150. Injection-moulding machines. STRAHM, A. Dec. 31, 1953 [Jan. 8, 1953], No. 36379/53. Class 87 (2). When injection of plastic material 17 into a mould cavity 5 is to take place the injection piston 2 is advanced from. the Fig. 1 position to the Fig. 2 position, whereby a pipe 4 is protruded beyond the end of the injection nozzle 3 and pushes a core 9 into the mould 8, and the plastic material issues from holes 15 in the end of the pipe and passes into the mould cavity. The pipe and core are normally kept in their idle positions (Fig. 1) by springs 16, 10. The mould shown is for casting a polyethylene head onto a collapsible tube 7 of extruded polyethylene, and is split axially. A plurality of such injection heads may fill simultaneously a plurality of such moulds, the moulds being arranged on a single indexing device.
Patent GB-990353-A (GB)
Title: Quick action device for securing a tool to a machine tool spindle
IPC: F16D1/06
Filed: 1963-09-18
Abstract: 990,353. Sockets. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. Sept. 18, 1963 [Sept. 24, 1962], No. 36660/63. Heading B3B. Means for securing a cutting or measuring tool 4 to a machine tool spindle 1b comprises an intermediate member 5 screwed to the spindle or tool and means for engagement between the intermediate member and the tool or spindle so that the tool and spindle are held against axial and angular movement. The tool has a slotted end 6, Fig. 2, into which a lug 5c on the member 5 can be inserted, turned and locked. The member 5 is prevented from removal by a pin 9.
Patent GB-822128-A (GB)
Title: Improvements in or relating to sash saw
Inventor: HETMAN FRANK WESLEY
IPC: B27B5/20
Filed: 1957-11-26
Abstract: 822,128. Sawing; mitering. SELFSTORING WINDOW CO. Inc. Nov. 26, 1957, No. 36905/57. Class 145. A machine for mitering window frame members, particularly those made of extruded aluminium, comprises a pair of saws 42 sloped according to the mitre angle required at each end of a frame member and each traversable across a table 12 on overhead arms 31, roller and belt feed means 18, 19 for the stock, a retractable stop 42 for locating the ends of the stock for mitering by the first saw, a stop 77 for locating the mitered ends of the stock so that a frame member can be parted off at the mitre angle by the second saw and fluid-pressure-operated clamps 58 and 59 for clamping a quantity of stock on the table 12 and against a fence 14. The saw carriages 32 are each connected to a traversing chain 33 moved by a handle 38 and the saw driving motors 40 are clamped to the carriages at the required angle by clamp handles 41. Cutting fluid is supplied through means 44 on the saw guards 43. The first stop means 42 comprises an elongated angle section 48 adjustable on a pair of brackets 51 secured to a shaft 45 and is raised to operative position by a lever 47 and secured there by a latch 56. If the stock has square cut ends, they will engage the lower limb 50 of the section 48 but, if the ends have previously been mitered with a rearward slope by the second saw, their upper ends engage the upper limb 49 to locate the stock correctly for removal of a triangular piece of waste. After the first mitre cut, the rollers 18 are set in motion to feed the stock against the second stop which comprises an elongated bar 77 bevelled at its lower edge to engage correctly with the mitered ends of the stock. The stop is adjustable to positions indicated by a pointer 76 or 85 and is clamped there by horizontal and vertical hydraulic clamps 95, 96.
Patent GB-522836-A (GB)
Title: Improvements in refrigerating apparatus
IPC: A23L3/36
Filed: 1938-12-19
Abstract: 522,836. Freezing food &c. STONE, A. J. Dec. 19, 1938, No. 36908. Convention date, Dec. 17, 1937. [Class 29] In apparatus as described in Specification 488,791 for quick freezing of foods &c. alternate refrigerant chambers 19, which are wedge shaped, . are movable radially to widen the storage spaces 22 between them as the spaces successively reach the charging opening 23, the. movable chambers being guided by pin and slot devices 20, 21, Fig 5, and having pins 28a adapted to ride on the fixed inner drum 9 so as to be engaged by cams 28 on this drum opposite the charging opening. The chambers are afterwards pushed inwards by cams 29, Fig. 3, on the casing wall or are restored by springs 30, Fig. 1, or by both means. The refrigerant path through the chambers may be reversed by means of a valve 41 in the supply and discharge conduits, preferably actuated automatically and periodically with the drum rotation. Carbon dioxide gas may be supplied under pressure to the interior of the heat-insulated casing, to minimize freezing - on of the articles. The charging and discharging openings are provided with double doors, as at 34, 35, Fig. 1, to provide air locks.
Patent GB-358798-A (GB)
Title: Cooking or hot-plate for gas and other stoves
IPC: F24C15/10
Filed: 1930-12-08
Abstract: 358,798. Hot-plates. HERMANN, L. M., 13, Erlenkamp, Hamburg, Germany. Dec. 8, 1930, No. 36939. [Class 28 (i).] A hot-plate or cooking- plate comprises an iron and a mica plate in combination, the latter serving to prevent overheating of the food and to distribute the heat to several utensils. In the form shown the mica plate e is held between upper and lower metal plates a, b2, which are riveted together. A frame b of angular section material is riveted to the edge of the plate a, and a handle c is provided. The plate, instead of being movable, may be fixed to a gas cooker or sunk in the top of a kitchen range.
Patent GB-1236384-A (GB)
Title: Improvements in or relating to actuators having a hydraulic actuator ram
Inventor: NEWBOROUGH HARRY
IPC: F15B11/072
Filed: 1967-08-11
Abstract: 1,236,384. Hydraulic rams. PLESSEY CO. Ltd. July 26, 1968 [Aug. 11, 1967], No. 37075/67. Heading F1P. A single-stroke hydraulic ram comprises a cylinder 1 having slidable therein a plunger piston 6 provided with an axial bore 8 in which is disposed a gas-loaded floating piston 9 arranged to absorb pressure peaks caused by high inertia loads. The floating piston 9 is normally urged against a split ring 12 by gas admitted to a chamber 17 through a charging valve 16 in the plunger endpiece 10. The ram is retracted by allowing fluid to exhaust through a port 18 under the action of the load, and when the exhaust is terminated the resulting pressure build-up is absorbed by displacement of the floating piston towards the position shown.
Patent GB-858661-A (GB)
Title: Improvements in or relating to the aeration of liquids
Inventor: SEARLE GILBERT ODELL
IPC: B01F3/04
Filed: 1956-12-05
Abstract: 858,661. Aerating bacterial sludge. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Dec. 5, 1957 [Dec. 5, 1956], No. 37140/56. Class 111. [Also in Group II] A device for aerating bacterial sludge comprises a drum rotatable about its axis, the perimeter of the drum consisting of a single layer of a sheet or sheets of unflattened expanded metal or synthetic resin sheet in like form. As shown, the drum is star-shaped but it may alternatively be square, polygonal, circular or elliptical. In one application the shafts 8 of two such star-shaped drums are mounted upon opposite walls of a concrete tank and are geared to an electric motor such that the starpoints dip successively into liquid contained in the tank. Liquid is lifted during the rotation and falls back through the perforations of the expanded sheet into the tank, thereby effecting aeration. The sheet is secured to frames by plates 14 clamped in position by bolts 15 and nuts 16. The device may also be floated so that the surface of the drum dips into the liquid at a constant depth, irrespective of the liquid level.
Patent GB-1105633-A (GB)
Title: Method and apparatus for forming reinforced plastics pipe
IPC: F16L9/16
Filed: 1966-08-19
Abstract: 1,105,633. Apparatus and method for making pipes. ROCK ISLAND OIL & REFINING CO. Inc. 19 Aug., 1966 [15 Oct., 1965], No. 37195/66. Heading F2P. In the formation of a glass-, nylon-, or other filament-reinforced plastics pipe from a plurality of tensioned filaments 20 arranged parallel to the axis of a rotatable mandrel 18 in initially spaced relation with the mandrel outer surface with their ends anchored adjacent opposed ends of the mandrel, the spacing between the mandrel and the filaments at their longitudinal midpoint is fixed by a spacing ring 100 between the mandrel and filaments and by an associated clamp 102 overlying the ring and filaments. Said ring and clamp prevent the increase of the spacing between the mandrel and filaments due to centrifugal forces on rotation of the mandrel during subsequent impregnation of the filaments with epoxy, polystyrene or other resin from a reciprocating tank 54. Filaments are threaded through the spokes of fixed guide rings 26 and 38, an interposed manually or mechanically rotatable tension ring 30, and a fixed ring 40, all of said rings being mounted on a stationary tube member 32 and constituting a feed, guide and tensioning unit 10 adjacent one end of the mandrel. The filaments are clamped by an anchor ring 44 initially positioned alongside ring 40. The anchoring is moved to the other end of the mandrel where it passes over and is locked by spring- loaded panels 60 to a conical stop 62 biased by spring 94 away from the unit 10. A sock-like form of filaments is thus positioned over and around the mandrel. Tension ring 30 is then turned relative to rings 26 and 38 to tension the filaments and is locked in the desired position by a bar or other brake means. The filaments are then clamped between the spacer ring 100 and clamp 102 at their mid-point and the other ends of the filaments are clamped by an anchor ring 44a similar to anchor ring 44 and by a small ring 45. The mandrel is rotated and the tank 54 traversed to distribute resin on the filaments. One or more tie-down coarse pitch helical windings 22 is wrapped about the impregnated filaments, clamp 102 being removed and spacer ring 100 being moved to the left and out free on termination of the windings. One or more fine-pitch helical windings (24), Fig. 2 (not shown), are disposed about the partly formed pipe, the inner at least being resin-impregnated. A further layer of longitudinally and helically arranged filaments may be added by moving ring 44a to the right to replace ring 44 on the stop, the damping, the impregnation, and the helical winding steps being repeated. An abutment ring 92 for the spring 94 of the stop is provided with an annular recess 93 for reception of a cutting blade whereby the pipe end may be trimmed. The mandrel is removed from its drive socket of drive 14 and unit 10 and moved to a curing chamber. The mandrel was wax-coated initially to permit ready-removal of the formed pipe.
Patent GB-1273137-A (GB)
Title: Improvements in or relating to mixer circuits
Inventor: PERKINS KENNETH GEORGE
IPC: H03F3/04
Filed: 1968-08-05
Abstract: 1,273,137. Amplitude modulation; frequency changing. PLESSEY CO. Ltd. 4 Aug., 1969 [5 Aug., 1968], No. 37266/68. Headings H3R and H3T. A mixer comprises an amplifier having negative feedback and switch means for modifying the feedback which are operated at the modulating frequency. Amplifier 1 is provided with negative feedback by means of resistors R 1 , R F1  and feeds into an emitter-follower 2. A further feedback path is provided from the emitter of the emitter-follower 2 to the input of the amplifier 1, comprising the step-up autotransformer 6 and the resistor RF2, a centre-tap on which is connected to ground via the switch S1. The carrier frequency is applied to the input terminal A and modulation effected by opening and closing the switch S1, which may comprise a field effect transistor or diode, at the modulating frequency. The feedback resistor RF 2  may be provided with more than one tapping point, each tapping point being connected to earth via a switch and the switches being operated in synchronism (Fig. 2, not shown).
Patent GB-912686-A (GB)
Title: A process for the oxidation of olefinic hydrocarbons
Filed: 1960-10-31
Abstract: Unsaturated aldehydes and ketones are produced by passing a molecular oxygen-containing gas and steam through a fluidised bed of a heavy metal-containing oxidation catalyst, thereby entraining the catalyst in suspended form in the gas leaving the catalyst bed, adding an olefinic hydrocarbon having at least 3 carbon atoms per molecule to the suspension, passing the mixture through an externally cooled elongated reaction zone maintained at 250-750 DEG C. while maintaining the catalyst in suspended state, separating the catalyst from the effluent from the reaction zone, and obtaining an a .b -unsaturated aldehyde or ketone from the effluent. Suitable catalysts are, for example, tellurium oxide alone or in combination with an oxide of molybdenum, tungsten or uranium; copper oxide in combination with a metal of the palladium-platinum group or with Group VIII elements of the fourth series; selenites and tellurites of silver, lead, iron, cobalt, nickel or cadmium; copper and silica gel with cadmium, cobalt, molybdenum, thorium, manganese, calcium or titanium; and selenium in combination with an oxide of copper, vanadium, tellurium, chromium, molybdenum, tungsten, uranium, or tin, or with copper aluminate or silicate. The preferred catalysts are those containing oxides of molybdenum and bismuth, e.g. bismuth molybdate, and, if desired, these catalysts may be modified by the addition of phosphorus or phosphorus compounds.  The catalyst may be, for example, bismuth phosphomolybdate.  The catalysts may be used with conventional supports.  The catalyst separated from the reactor effluent may be passed into a catalyst cooling zone through which oxygen is passed thereby forming the suspension, the catalyst being cooled by indirect heat exchange with water so that steam is formed. The olefine used as starting material may be mixed with one or more saturated hydrocarbons.  Suitable starting olefins are, for example, propylene, butene-1-ol-2, isobutylene, pentene-1-ol-2, 3-methyl-pentene-1, 2-methyl-butene - 1, hexene - 1, hexene - 2, 4 - methyl-pentene-1, 3,3 - dimethyl - butene-1, 4-methyl-pentene-1, octene-1, cyclopentene, cyclohexene and 3-methyl-cyclohexene. Specification 912,687 is referred to.  Reference has been directed by the Comptroller to Specification 821,999.
Patent GB-962140-A (GB)
Title: Improvements in or relating to sliding multiple doors
Inventor: KETTERINGHAM EDWARD JOHN
IPC: E05D15/06
Filed: 1961-10-19
Abstract: 962,140. Guide means for sliding doors; spring clips. MARLEY CONCRETE Ltd. Oct. 16, 1962 [Oct. 19, 1961; April 12, 1962], Nos. 37510/61 and 14147/62. Headings E1J and E2B. Sliding doors for garages are each suspended from a channel track 14 by a roller 12 or 13 at each end, and have their lower edges guided, either by short rails 18 in the centre of the door opening, or by short, E-sectioned tracks 30, which may be composed of channel and anglesectioned members, or as shown. In the case where tracks are provided, the door may have a hardwood runner 34. The doors are held in the closed position by spring clips 25 secured to the jambs. The guide means may also comprise wheels or rollers spaced apart from each other on each side of the centre of the opening and engaging tracks in the bottoms of the doors.
Patent GB-344911-A (GB)
Title: Improvements in battery charging arrangements for use in connection with internal combustion engine vehicles
IPC: H02J7/14
Filed: 1929-12-07
Abstract: 344,911. Heating water by electricity. CALDWELL, P. G., 1, West Hill Avenue, Mansfield, Nottinghamshire. Dec. 7, 1929, No. 37547. [Class 39 (iii).] A heater 1 for use in the cooling system of the engine of a motor vehicle comprises a double-walled cylinder fitted with circulating connections 4, 5 and a resistance coil 6. A spiral vane 16 is arranged in the waterway. The device may be arranged on the outside of the vehicle.