baber/WOPTO huggingface dataset:
Patent GB-845023-A (GB)
Title: Aircraft automatic control systems
Inventor: MCGOWAN GEORGE EDWARD
IPC: G05D1/00
Filed: 1957-05-10
Abstract: 845,023. Automatic control systems for aircraft. SPERRY GYROSCOPE CO. Ltd. May 9, 1958 [May 10, 1957], No. 14885/57. Class 38 (4). In an automatic control system for an aircraft, a servomotor positioning a control surface is controlled by an electric signal, dependent on angular attitude of the aircraft, which is made progressively more effective for a time following engagement of the automatic pilot. In Fig. 2 a proportional plus rate signal P, derived through a resistance-condenser network from a potentiometer pick-off 12 associated with a gyro reference (not shown), maintains the pitch of an aircraft at a value determined by the setting of a potentiometer 13, the output of which is applied in opposition with signal P to an elevator servo system. Transient follow-up signals are also applied to the servo system. A proportional plus rate signal from a further pick-off associated with the gyro reference maintains bank of the aircraft at a value determined by the setting of a potentiometer 14 in a similar manner by controlling aileron and rudder servosystems. To prevent sudden operation of the elevators and ailerons when changing from manual to automatic control of the aircraft, potentiometers P 1 , P 2 , P 3 , which are in the position shown during manual control, are driven to their other extreme positions by a motor (not shown) so that the proportional and setting signals are introduced gradually after the automatic pilot is switched in. A switch operated by the potentiometer driving motor at the end of its travel introduces course and altitude control by operating a relay to apply signals from a compass and altimeter to the rudder and elevator servo systems respectively. When changing from automatic to manual control of the aircraft a clutch in the potentiometer drive is deenergized and potentiometers P 1 , P 2 , P 3  returned to the positions shown by springs. Gradual introduction of non-transient follow-up signals and signals from the compass is referred to. A single potentiometer controlling the supply to the pick-offs and setting potentiometers may replace potentiometers P 1 , P 2 , P 3 . Specification 691,027 is referred to.
Patent GB-717880-A (GB)
Title: Device for fitting to exhaust systems for internal combustion engines of motor vehicles
IPC: F01N13/08
Filed: 1952-06-13
Abstract: 717,880. Exhaust-gas ejectors. SMITH, A Sept. 11. 1953 [June 13, 1952], No. 14930/52. Class 7(2) A tube 1 for connection to an exhaust pipe is surrounded by a frusto-conical member 3 the larger end of which faces in the direction of motion of a vehicle to which the device is fitted and the smaller end of which is located opposite the rear end of the tube 1 so that the annular clearance 5 thus produced combined with the flow of air through the member 3 causes an ejector or Venturi effect on the exhaust gases. The member 3 is supported by fins or ribs 2 which extend 'substantially in planes passing through the longitudinal axis of the device. A cylindrical extension 4 having an internal diameter greater than the external diameter of the tube 1 may be fitted to the rear end of the member 3. In a modification, the rear end of the member 3 extends beyond the end of the tube 1.
Patent GB-446138-A (GB)
Title: Improvements in and relating to thermally controlled time delay switches
IPC: H05B41/06
Filed: 1935-05-22
Abstract: 446,138. Partly electromagnetic switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. May 22, 1935, No. 14947. Convention date, May 23, 1934. [Class 38 (v)] A thermally-controlled time delay switch comprises an electromagnet 6 which attracts a contact member 5 downwards and a thermal latch 7 substantially insensitive to variations of ambient temperature which prevents this movement, but is adapted to move when heated by current to release the contact arm. The latch comprises a bimetallic element shaped and supported as shown in the Figure. Current enters and leaves through the narrow end strips 22, 23 causing them to flex and carry with them the relatively cool middle tongue 24 which eventually slips off the end of a pin 21 on the switch member 5 pivoted at 9 and carrying arms 10, 11, with contacts 13, 14 normally engaging fixed contacts 17, 18. The invention is shown applied to the control of a sodium discharge lamp 25. Current from the secondary of a transformer 33 passes through conductor 39, autotransformer 31, contacts 17, 18 engaging contacts 13, 14, arms 10, 11, conductor 41, bimetallic element 7, conductor 42, autotransformer 30, and electromagnet 6 back to conductor 44. The autotransformers heat up filaments 28, 29 to vaporize the sodium, and the electromagnet 6 pulls the switch member 5 downwardly, but the bimetallic element prevents movement of the member 5 till after a predetermined time interval it slips off the pin 21. The above circuit is then broken, and the bimetallic member cools. Since the bimetallic element no longer connects the two autotransformers, current is forced between anodes 26, 27 of the sodium lamp. The filaments 28, 29 are still heated, but to a smaller degree than before. Should the lamp fail, the consequent de-energization of the magnet 6 will allow a spring 15 to move the parts back to their original position.
Patent GB-1253891-A (GB)
Title: Thermoplastic moulding compositions containing polyesters
IPC: C08K5/1515
Filed: 1969-03-21
Abstract: 1,253,891. Thermoplastic polyester moulding composition. FARBWERKE HOECHST A.G. 21 March, 1969 [3 April, 1968], No. 14965/69. Heading C3R. A thermoplastic moulding composition comprises (a) a linear saturated polyester of a hydroxycarboxylic acid or of an aromatic dicarboxylic acid and optionally a small amount of an aliphatic dicarboxylic acid with a saturated aliphatic or cycloaliphatic diol, (b) 0-05 to 2 % by weight, based on the polyester, of an inert inorganic solid having a particle size below 5 microns, and (c) 0-05 to 2% by weight, based on the polyester, of a compound of Formula I where R and R1 are each alkylene, cycloalkylene, aralkylene or arylene, each of which groups may be substituted by one or more epoxy groups, and the groups R and R<SP>1</SP> optionally being linked, directly or via one or more carbon atoms, to form a bicyclic or polycyclic ring. The polyester may be polyethylene terephthalate or polycyclohexane - (1,4) - dimethylol terephthalate. The inert inorganic solid is preferably talc, kaolin, titania, antimony trioxide, magnesia or an alkali or alkaline earth metal carbonate or fluoride.
Patent GB-364490-A (GB)
Title: Manufacture of diazo-preparations
IPC: C09B67/36
Filed: 1931-05-21
Abstract: Stable diazo preparations are made by reaction between a diazonium salt and a di- or polysulphonic acid of a halogenated aromatic hydrocarbon.  They are useful for dyeing by the ice-colour process and may be mixed with diluents or assistants, e.g. alum.  In examples, (1) diazotized m-nitraniline is treated with 1 : 2 : 4 - chlorbenzenedisulphonate or with disulphonated 1 : 4-dichlorobenzene, (2) diazotized 3-nitro-4-amino-1-toluene is treated as above or with a chlortoluene or chloronaphthalene disulphonic acid, (3) diazotized 4-chloro-2-nitraniline is treated as above; if the diazo solution is neutralized a double salt is obtained, (4) diazotized p-nitraniline is precipitated with disulphonated 1-chlornaphthalene; tetrazotized dianisidine or diazotized 2 : 5-dichloraniline may be similarly treated, e.g. with chlortoluenedisulphonic acids, (5) cotton padded with 2 : 3-oxynaphthoic anilide is developed with the product of (3) in acetic acid solution; other coupling components are specified.
Patent GB-482990-A (GB)
Title: Improvements relating to the braking and re-starting or acceleration of vehicles andinstallations driven by internal combustion engines
IPC: F01L13/00
Filed: 1937-05-31
Abstract: 482,990. Motor power plant. HEYLANDT, C. W. P. May 31, 1937, No. 15070. Convention date, June 18, 1936. [Class 110 (iii)] [Also in Group XXVII] For braking and re-starting or accelerating a vehicle or installation driven by an internalcombustion engine having a second working stage constituted by a reciprocating or rotary engine, braking is effected by adjusting the engine to compress air, preferably in the second stage, the compressed air being subsequently expanded in the second stage for re-starting or accelerating. The adjustment may be effected by angular or axial adjustment of the cam-shaft actuating the valves of the second stage. In the form shown in Fig. 3, a cam-shaft h is located between valve levers g<1>, g<2> for actuating the tappet rod f, and is vertically adjustable to actuate one or other of the levers. In the engine shown diagrammatically in Fig. 4, fourstroke high-pressure cylinders Ia, Ib deliver combustion gases alternately to a two-stroke low-pressure cylinder II. For braking, the valve-gear is adjusted so that the cylinder II draws in air through a valve C and expels it through a valve D to a receiver F. For acceleration, compressed air from the receiver F is delivered through an exhaust-heated exchanger G and a valve E to the cylinder II.
Patent GB-327615-A (GB)
Title: Improvements in processes for the blackening, by oxidation, of iron and steel, and articles thereof
IPC: C23C22/62
Filed: 1929-05-14
Abstract: 327,615. Taricco, L. May 14, 1929. Coating.-In a process for blackening iron or steel or articles thereof by oxidation, the iron &c. is immersed in a bath of a hot alkaline solution of potassium cyanate, produced by the action of litharge upon potassium cyanide in a solution of sodium or potassium hydrate. The constitution of the bath is as follows :-Potassium hydrate, 35.85 parts by weight; water, 39.82 parts by weight; potassium cyanide, 2.12 parts by weight; litharge, 22.21 parts by weight. The bath has a working temperature of 125-127‹ C., and should the temperature rise through increase of concentration, water must be added. The bath is regenerated by the addition of litharge.
Patent GB-241606-A (GB)
Title: Improvements in sheet metal walls
IPC: E04C2/32
Filed: 1924-06-23
Abstract: 241,606. Connery, W. M. June 23,1924. Compartments and bunkers; bulkheads; skins. -A wall construction formed of coplaner expansible or yielding metal plates, applicable also to boxes and coal or ice bunkers or compartments in ships and on railroad cars, is composed of panel sections 2, Fig. 5, and connecting strips 6, 7, 8 which are provided with ribs or corrugations formed by bending the metal plate and are assembled with the ribs of adjacent sections meeting at a right or other angle. Expansion and contraction or yielding under load is thus possible in one or two directions. The spacing of the ribs 3 in the panel sections may be regular or irregular and the ribs may be horizontal or vertical: the connecting strips may have one large rib 9 or two or more small ribs 10, 11, and may be used to connect the inner and outer skins of a ship, Fig. 2. The abutting portions 14 of the ribs may be welded together, and the plate edges may be welded or riveted. Shaped pieces, Fig. 9, are provided for obtuse or right-angled corners. Fig. 15 shows a joint between two panel sections formed with flanges 17 riveted together.
Patent GB-123493-A (GB)
Title: Improvements in Cowls for Chimneys, Stove Pipes, Ventilating Shafts and the like.
Inventor: ILIFF FRANK
IPC: F23L17/02
Filed: 1918-09-19
Abstract: 123,493. Iliff, F. Sept.'19, 1918. Chimney &c. tops. - Three equidistant outlets b, of V, U, or other suitable shape, are formed in the upper edge, below a plate e, and shielded by wings c along their edges. The plate e may be surmounted by a cone f, and it may be of smaller diameter, being then overlapped by a cone. The lower parts of the outlets are preferably blocked by an internal ring or plate d.
Patent GB-316291-A (GB)
Title: Method for preparing tapioca and apparatus for executing said method
IPC: A23L19/10
Filed: 1929-05-16
Abstract: 316,291. Morin, R. L. M. July 28, 1928, [Convention date]. Drawings to Specification. Preparing meal from special materials.- Tapioca is prepared by moistening dry cassava root fecula to a predetermined extent and then cooking it by means of steam in a closed oven in which it is spread out in thin layers on plates. Exhaust steam providing a temperature of 80- 100‹ C. or over may be used. By employing steam under pressure the thickness of the fecula layers may be increased and the cooking time reduced. The fecula is moistened in a mixer from which it passes to a device in which it is broken up to the required size. A distrbuter is provided for spreading the material on the oven plates. The oven is formed of a heat-insulated metal casing which may be of domed shape to prevent condensed moisture falling on the material. The oven plates are removable and may be carried on trollies. In a modified form, the plates may be carried on a moving band, or the band may be adapted to support the fecula directly, thus providing continuous working. Care is taken to keep the fecula from contact with the iron, e.g. by providing carrying plates of aluminium or other non-ferrous material. Ordinary or distilled water may be used for the moistening. The cooking operation takes 2-3 minutes.
Patent GB-1408872-A (GB)
Title: Manufacture of constructional components
IPC: B28B11/12
Filed: 1972-04-04
Abstract: 1408872 Moulding building components P MEIER 6 Sept 1972 [14 Sept 1971 4 April 1972] 42701/71 and 15301/72 Heading B5A In a method of imparting to a building component, e.g. a concrete panel 4, a dimensional accuracy between two of its opposed faces, the component is manufactured undersize as regards said dimension and located between jaws 1, 2; a layer of settable or curable material 23, e.g. an epoxy resin or cement, is provided at the opposed faces and the component is squeezed between the jaws which shape the layer and provide the required dimension. The panel rests on a platen 3 connected by a rod 12 to a pivoted lever 10 reciprocable by a unit 9; the jaw 1 is moved towards jaw 2 by a rod 11. The jaw movement is twice that of the platen and the former is controlled by an adjustable stop. Heat may be supplied to the material by high frequency generators in the jaws. The apparatus of Fig. 4 controls the linear dimensions of a panel 104 in horizontal and vertical directions, the latter by lowering a platen 130 until abutments 129 engage surfaces 132 thereby controlling the thickness of curable material squeezed between the panel base and shoulders 78, 79 of jaws 101, 102. Additional settable material may be applied to the panel to control its width and provide a panel as shown in Fig. 7 which has channels 147 for cables whereby a number of such panels can be abutted and joined to end structures to form a room element as described in Specification 1,350,599.
Patent GB-586145-A (GB)
Title: Improvements relating to lathes
IPC: B23G1/02
Filed: 1944-08-11
Abstract: 586,145. Lathes. AVIMO, Ltd., and STEVENS, H. C. M. Aug. 11, 1944, No. 15363. [Class 83 (iii)] [Also in Group XXIII] In a lathe in which a rotary tool spindle is carried by a pivoted arm slidable by means of a lead screw and the depth of cut controlled by a stop on the arm co-operating with a stationary abutment, a slidable housing interconnected with the arm carries a nut which is movable into and out of engagement with the lead screw, a catch securing the nut in its operative condition and means being provided for releasing the catch in response to pivotal movement of the tool-carrying arm. A thread-milling or grinding wheel z is carried at the end of a spindle y mounted in an arm x. The arm is fastened to a bar u rotatable and slidable in guides on the machine frame. A housing 1, also connected to slide with the bar u, carries an electric motor w for driving the tool-spindle and houses a split nut n. The latter is engaged with a lead screw k driven through gearing i from the work spindle b by means of a hand lever fastened to a spindle p; but may be disengaged automatically when an operation is completed by a stop 9 on the lower end of the arm x striking a rod t and thus moving a retaining catch which normally holds the nut-halves closed against spring pressure applied to the operating handle. In a screw-threading operation on a workpiece e, the arm x is initially positioned by means of a stop 11, depth of cut is determined by drawing the arm towards the workpiece by a handle 4 against the tension of a spring 3 until an adjustable abutment 5, Fig. 3, springs into engagement with an adjustable abutment 6; on reaching the end of this abutment the arm and tool are withdrawn from the work and the stop 9 then operates to stop the feed movement. A supplementary tool spindle 12 is provided axially opposite the work and may carry endfacing cutters 13. Feed of the tool is by hand-lever 14 and linkage 15 adapted to give quick movement up to the work and slow feed.
Patent GB-428974-A (GB)
Title: Improvements in paper and method of manufacturing same
IPC: D21H23/00
Filed: 1934-05-23
Abstract: 428,974. Filling paper pulp webs. MEAD CORPORATION, Chillicothe, Ohio, U.S.A.-(Assignees of Carruth, H. P.) May 23, 1934, No. 15441. Convention date, Dec. 18, 1933. Addition to 396,063. [Class 96] The method comprised in the parent Specification is modified by forming the web from pulp e.g. ground wood, substantially free from filler and adding filler through the wire side of the web. The pulp may be such as would, without filler produce a web of 2 per cent ash, and a suspension containing 6 per cent filler and a little starch e.g. tapioca and corn starch may be applied, so that the finished paper contains 2¢ per cent of filler, or ¥ lb. per ream.
Patent GB-1455780-A (GB)
Title: Sealing rings for preventing leakage of fluid between relatively  movable surfaces of revolution
IPC: F16J15/26
Filed: 1974-04-08
Abstract: 1455780 Seals AUTOMOTIVE PRODUCTS Ltd 21 March 1975 [8 April 1974] 15477/74 Heading F2B A split P.T.F.E. sealing ring 10 is reinforced with circumferentially aligned carbon fibres. Preferably, the fibres are wound around a former to make a ring or tube, which is impregnated with P.T.F.E. The tube or ring is moulded to shape and moulded tube is parted off to provide rings. A rotatable clutch component 14, for a variable speed motor vehicle transmission, has a cylinder 15, for a pistonactuated clutch. An annular groove 17 is sealed with the P.T.F.E. rings 10, engaging a cylindrical surface 19 of a stationary housing 13.
Patent GB-440242-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B13/00
Filed: 1935-05-29
Abstract: 440,242. Vaporizers. CRILLON, M. V., 28, Boulevard de la LibertÚ, Marseilles, France. May 29, 1935, No. 15595. Convention date, Sept. 11, 1934. [Class 7 (iii)] The cylinder head a forms the lower half of a chamber c of circular section and annular form, the upper part of which is formed by a counterpart b provided with cooling ribs &c. on its upper surface. The ribs are screened by double plates m, l provided at one side with an air inlet and on the other with a hinged shutter moved through gearing to adjust the cooling effect on the chamber c by a pyrostat f mounted in the cylinder head a. Fuel on its passage through the chamber c from an inlet d to a diametrically opposite outlet e is heated above its critical temperature if it is a light fuel or "cracked" if it is a heavy one and is introduced into the cylinder through an injector i having a chamber at its lower end to accommodate an electric heater for facilitating starting. The cylinder head has a conical central surface merging tangentially into a spherical one and the fuel is injected in the form of a cone.
Patent GB-785484-A (GB)
Title: Improvements relating to pin bars for tentering machines
Inventor: MOHRING GUSTAV
IPC: D06C3/10
Filed: 1955-05-31
Abstract: 785,484. Tentering machines. FAMATEX GES. May 31, 1955, No. 15598/55. Class 42 1). A metal pin bar for a tentering machine has the pins rigidly fixed therein and is provided with spacing means for preventing thermally conductive contact between the material being tentered and the face of the metal bar. The arrangement is of advantage in providing uniform heating during heat-setting of synthetic fabrics. In one construction, Fig. 1, the fabric is spaced from the face of the bar 1 by enlarged butt portions 3 of the pins 2. In another construction, Fig. 4, spacing pins 7 having rounded heads 8 are provided between pins 2. In further constructions (i) bar 1 is formed with boss-like projections through which the pins 2 project; (ii) pins 2 are carried by removable plugs which are pressed into holes in bar 1 and project above its surface; (iii) the top face of bar 1 is provided with a coating of synthetic resin or other material having a low thermal conductivity.
Patent GB-437635-A (GB)
Title: Improvements in and relating to washing machines
IPC: D06F13/02
Filed: 1935-05-29
Abstract: 437,635. Positive clutches. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. May 29, 1935, No. 15669. Convention date, May 29, 1934. [Class 80 (ii)] [See also Group VIII] For removably securing the agitator 62 of a washing- machine to the oscillating drive shaft 34 the upper end of the latter is enlarged as at 61 and the upper end of the enlargement is provided with two arcuate apertures 68. Bolts 72 are slidingly mounted in a plate 69 secured in the hub 62<a> of the agitator and are depressed into operative engagement with the apertures 68 when a plunger rod 64, slidingly mounted in the agitator hub and in the enlarged head 61, is depressed, the rod 64 having a plate 74 secured thereto for engaging the upper ends of springs 73 which act on the bolts. The plunger rod 64 is maintained in its raised or lowered position by the toggle-like arrangement comprising arms 75, Fig. 4, pivoted to the rod and acted on by springs 76 attached to the plate 69. Unintentional removal of the agitator is prevented by a snap ring 80 engaging grooves 78, 79.
Patent GB-612384-A (GB)
Title: Cycle brakes
IPC: B62L1/16
Filed: 1946-05-24
Abstract: 612,384. Cycle brakes. MORRIS, C. H. May 24, 1946, No. 15759. [Class 136 (i)] In a cycle brake mechanism of the kind having a pair of pivoted levers carrying the brake shoes which are moved into contact with the wheel by the rotation of a shaft, two screw and nut devices, one right hand and one left hand, are actuated concurrently by the shaft to operate their respective levers. Levers 11 and 12 carrying brake shoes 9 and 10 are pivoted to the cycle frame at 13 and are connected to the non-rotatable nuts 7 and 8 on the shaft 1. The shaft has two threads 5 and 6 of opposite hand and is mounted in a journal 2. To apply the brake, the shaft is rotated by means of a drum 3 and the cable 4 of a Bowden mechanism operated by a handle bar lever. In a modification, the shoes can be arranged to move other than horizontally when the brake is applied. For each shoe a screw adjustment is provided at either end of the levers or the fulcrum pin 13 of each lever may have an eccentric mounting. A return spring 14 is incorporated.
Patent GB-183983-A (GB)
Title: Improvements in and in apparatus for the manufacture of hollow india-rubber balls
IPC: B29D22/04
Filed: 1921-06-08
Abstract: 183,983. Lawton, A., and Macintosh & Co., Ltd., C. June 8, 1921. Balls.-Relates to the manufacture of hollow rubber balls, bulbs, &c. by means of apparatus of the kind described in Specification 13235/97 wherein two pairs of pivoted petal-shaped plates are used for gathering up the edges of a solutioned sheet of rubber, cutting away the superfluous material and nipping the edges together so as to form an hermetically sealed bag which is subsequently vulcanized and distended to form a ball. The invention consists in forming one pair of plates, for example plates a, Fig. 2 or Fig. 4, of such dimensions that the upper pointed ends b do not meet when the plates are closed, and in forming the other pair of plates c with straight meeting edges d. The inner sides of the straight edges d may be ridged, and the plates a may be provided with points k projecting over the edges d. Figs. 5 and 6 indicate the position of the joints in balls produced by the plates shown in Figs. 2 and 4 respectively.