baber/WOPTO huggingface dataset:
Patent GB-1033375-A (GB)
Title: Improvements in or relating to tea infusers
Inventor: PICTON ARTHUR KEITH
IPC: A47J31/06
Filed: 1962-04-18
Abstract: 1,033,375. Infusing beverages. JOSEPH TETLEY & CO. Ltd. April 3, 1963 [April 18, 1962], No. 15148/62. Heading A4D. In a frusto-conical funnel for infusing a tea or coffee bag, the angle of the cone is made as large as is consistent with the inflowing hot water not being able to lift the bag and escape directly to the outlet holes in the flat perforated base-plate of the funnel.
Patent GB-551198-A (GB)
Title: Improvements in and relating to ventilators
IPC: F24F13/08
Filed: 1941-11-25
Abstract: 551,198. Ventilators. DAVIES, L. G. Nov. 25, 1941, Nos. 15191/41 and 700/42. [Class 137] A ventilator, which is light-proof when made of opaque material, comprises at least two rows of overlapping louvres 10, 11 of S or Z shape either with straight or curved surfaces, the louvres of each row, when the ventilator is horizontal, providing channels 12 overhung by the lips of adjacent louvres for the collection and removal of water. The overhanging lips of adjacent louvres do not penetrate into the channels, and the louvres of successive rows are spaced apart to provide clear curvilinear passages for air. The air extraction effect may be increased either by projecting baffles 15, or by extending some of the louvres to form peaks 16, 17 well spaced apart. With the ventilator inclined, the water drains towards one end of each channel, and runs off under hoods which prevent passage of light. In Fig. 10, the ventilator is built around a central plate 32 which forms a support for the louvres 33, and which has slots 35 to provide spaces through which the air can pass, the structure being reinforced by stiffeners 37. Specification 539,158 is referred to.
Patent GB-123494-A (GB)
Title: A Switch for Closing an Electric Circuit for a Certain Period.
IPC: H01H43/30
Filed: 1918-09-19
Abstract: 123,494. Aktieselskab et Mekano, and Schepeler, H. A. Sept. 19, 1918. Thermal switches; sparking, preventing.-A short-time thermal switching-device particularly fur staircase lighting comprises a relay 14, which is energized in series with the heating-element 5 when one of the staircase press-buttons 3 is pressed momentarily, and immediately closes at the contacts 16, 18 the main circuit for the lamps and at 17, 19 a maintaining-circuit for the relay and the heating-element independent of the buttons. When the thermal element 6, in close proximity to the heating-element 5, has expanded sufficiently, it closes at the contacts 10, 12 a circuit for the lamps independent of the relay contacts, and, with further expansion, the relay winding is short-circuited by the engagement of the contacts 9, 11, whereupon the relay contacts are separated and the heating-element de-energized. A circuit for the lamps still remains through the contacts 10, 12, and this circuit is broken, finally, when the thermal element has had time to contract sufficiently. In order to reduce the sparking at the contacts 10, 12, contact 12 carries a horse-shoe magnet which, in conjunction with magnetic material on the base on which the movable contact member 8 is mounted, produces a blow-out flux between the contacts.
Patent GB-544197-A (GB)
Title: Improved manufacture of refractory materials
IPC: C04B35/484
Filed: 1940-10-15
Abstract: 544,197. Refractory substances. CORNING GLASS WORKS. Oct. 15, 1940, No. 15291. Convention date, Oct. 20, 1939. [Class 22] A cast refractory for glass tanks consists of crystalline zirconia and corundum in a siliceous non-crystalline matrix in which the total silica in the refractory is less than 20 per cent. by weight and the zirconia content is over 20 per cent. e.g. 20-60 per cent. The alumina content may be 72-20 per cent. The cast refractory is substantially free from mullite.
Patent GB-255204-A (GB)
Title: An improved direction indicator for road vehicles
IPC: B60Q1/34
Filed: 1925-06-13
Abstract: 255,204. Sterrett, F., and Stopforth, T. P. June 13, 1925. Road-traffic signals on vehicles.-A metal tube 1, bearing on opposite sides slots 2 in the form of arrows, surrounds a frosted glass tube containing a lamp. The tube 1 is provided with a spindle 8 projecting at right-angles to the tube and passing through a bearing in a bracket 9. Spring-pressed balls 7a in the bearing engage holes in a boss 7 secured to the tube to hold the tube in any desired position when it is turned by Bowden wires 10. A coloured glass 12 may be secured in the end of the tube by a cap 4.
Patent GB-1461675-A (GB)
Title: Electronic storage tube systems and methods of the readout char acteristics of such systems
IPC: H01J29/98
Filed: 1974-04-08
Abstract: 1461675 Cathode-ray storage tubes PRINCETON ELECTRONIC PRODUCTS Inc 8 April 1974 [8 March 1974] 15386/74 Heading H1D In an electronic storage tube which utilizes a target having a grid of insulating charge storage areas on a conductive base, such that beam current flow to the base is controlled by the charge storage areas, giving non-destructive read-out, the read-out characteristics are improved, particularly with regard to the grey scale by applying between the reading beam source and the target, during read-out, a periodic varying voltage, of a frequency higher than that to which the output signal reading means can respond, whereby to vary the energy of the electrons in the beam relative to the potential pattern on the target; preferably, the intensity of the beam is maintained substantially constant. As described, Fig. 1, a silicon/ silicon dioxide mosaic target 24, 26 is employed, the periodic varying voltage 36 being typically less than 5 volts peak-to-peak, and producing only slight intensity modulation of the beam even if the control grid 14 is returned via the D.C. source to earth rather than, as shown, to the cathode. Alternatively, the periodic varying voltage may be applied between the target and earth (Fig. 5, not shown), in which case a highfrequency filter between the target and the "read" amplifier is desirable, to prevent saturation of the latter. The periodic waveform may be, for example, sinusoidal, triangular, sawtooth, step, or staircase. The use of a staircase waveform the steps of which are of adjustable amplitude and duration permits a desired tube output/input characteristic to be approximated, and a variable gain control included in the periodic varying voltage source permits variation of the grey scale contrast during recording.
Patent GB-617189-A (GB)
Title: Windshield cleaner
IPC: B60S1/34
Filed: 1946-05-21
Abstract: 617,189. Windscreen wipers. ANDERSON, J. W. May 21, 1946, No. 15403. Convention date, Nov. 1, 1945. [Class 138 (i)] [Also in Group XXIV] A windscreen wiper has a coupling for detachably connecting the wiper arm to the drive shaft, including a pawl member adapted to be non - rotatably attached to the drive shaft, and a carriage operatively connected to the pawl member, the wiper arm being pivotally secured to the carriage about an axis transverse to the drive shaft, the pawl member being lockable to the carriage at various angular positions. The carriage 7, Figs. 3, 4 and 6, has an aperture 24 which fits over the head of the shaft 2, a projection 27 fitting in one of two grooves 28 in the shaft to allow limited relative angular motion. The pawl 8 then fits on to the shaft, an aperture 39 fitting on to a non-round portion 42 of the shaft, the rounded end 35 of the pawl lying within and against an end wall 14 of the carriage, while the other end is bevelled at 36 and has teeth 37 which interrnesh with teeth 32 on a sloping portion of the carriage. A thrust collar 9 is then placed over the shaft with a notch 51 engaging a lug 23 on the carriage and notches 50 engaging notches 20 in upright portions 15 of the carriage, to which the casing 3 carrying the wiper arm 4 is pivoted by a pin 17 passing through holes 16. The pawl is held in place by bending inwards the lug 23 and finger portions 22 of the portions 15. A resilient spring member 10 of sheet metal is then placed in position by inserting one end under the fingers 22 and pushing it under the lug 23 to hold the collar 9 in place. In a modification, the notches 20 are dispensed with and the thrust collar has an extension engaged by the free end of the spring 10 and held under the fingers 22, and has a central aperture instead of the U-shaped opening 46. The wiper arm is urged towards the screen by a spring 11, one end of which passes through an opening 33 in the carriage, and the other end of which is secured to the arm 4 by a rivet 70 and a holding member 65 held in place by locking fingers 69 on the side walls 61 of the casing being bent over to engage end walls 68 of the holding member. In a modification, the spring 11 is placed between the arm 4 and the member 65. In a further modification, the rivet 70 is dispensed with, and the spring 11 and arm 4 have circular portions protruding downwardly and leaving recesses in their upper surfaces, the protruding portion of the spring fitting in the recess in the arm and the protruding portion of the arm in a hole in the member 65. The pawl engages the carriage 7 in one of several angular positions, as shown in Fig. 6. By grasping and depressing the casing 3, the teeth 32, 37 are disengaged and the angular position can be adjusted, within a range of 20 degrees, to ensure the correct angular relationship between the arm and the shaft.
Patent GB-867181-A (GB)
Title: Hydraulic fluids
Inventor: STEIN WALTER
IPC: C09G1/00
Filed: 1956-05-18
Abstract: A hydraulic fluid consisting of a glycol ether or a polyglycol or a polyglycol ether with or without the addition of castor oil or other non-drying vegetable oil or a mixture of such fluids contains 0.05 to 2.0% by weight of benzotriazole.  The hydraulic fluid may be ethylene glycol ether with or without castor oil. The Provisional Specification refers to diacetone alcohol and castor oil.
Patent GB-165320-A (GB)
Title: Improvements in priming means for internal combustion engines
IPC: F02M37/02
Filed: 1920-06-09
Abstract: 165,320. Bourne, T. F. June 9, 1920. Starting.-Priming fuel is supplied to a vertical part 2<a> of the induction pipe through a cock 10 and a pipe 9 supplied by gravity from a fuel receptacle 5 which supplies the carburettor 3 by gravity through a pipe 5. In the form shown, an arm on the cock 10 is connected to a lever 22 on the dash-board, the cock being normally closed by a spring. The receptacle 5 has an inner vessel 30 connected by a pipe 7 to a fuel tank and by a pipe 8 to the induction manifold 2. A float-controlled lever 35 alternately opens a valve 25 leading to the suction pipe 8 and a valve 27 leading to the atmosphere, so that fuel is alternately drawn into the vessel 30 and allowed to escape through a valve 38 to the outer receptacle 5.
Patent GB-445989-A (GB)
Title: Improvements relating to toy vehicles
IPC: A63H19/15
Filed: 1935-05-29
Abstract: 445,989. Toys; obtaining light by friction. LIONEL CORPORATION, 15, East 26th Street, New York, U.S.A. May 29, 1935, No. 15622. Convention date, Feb. 19. [Class 132 (iii)] [See also Group XI] A toy locomotive, Fig. 1, has a tender 16 with a frame 17 having at its upper end a horizontal pivot for a fireman simulating manikin 19 carrying a shovel 21 controlled by a flexible spring 22. The manikin 19 and shovel are operated by a projection 29 engaging with a lever 25 pivoted at 26 and having an end 27 engaging with projections 15 on cross ties 14 of the track 13. In the construction shown in Fig. 2, the fireman is actuated by a member 30 engageable with a lug 31 carried by a gear-wheel 32 meshing with a driving pinion 33, a restoring spring being provided at 34 and the shovel being given a downward and then an upward movement. In a modified construction, the tender is replaced by a rearwardly extending platform carried by the locomotive. In the construction shown in Fig. 5, the fireman is actuated by a rod 54 having a roller 53 engageable with a cam member 52 on the gear-wheel 50 to be moved to the right against the action of the spring 56<1> to also actuate the spark forming device 57, 58 of flint and hardened steel. In a modified construction, the figure is gravity instead of spring controlled. In further modified constructions, the actuation of the fireman is accompanied by the flashing of an electric lamp.
Patent GB-1256074-A (GB)
Title: Manufacture of haloethylenes
Inventor: MCGINTY LAURENCE
IPC: C07C17/156
Filed: 1968-04-02
Abstract: 1,256,074. Oxychlorination processes. IMPERIAL CHEMICAL INDUSTRIES Ltd. 11 March, 1969 [2 April, 1968], No. 15782/68. Heading C2C. Trichloroethylene and perohloroethylene are prepared by oxychlorination of ethylene or a partially chlorinated ethane containing at least three carbon atoms at 300-500‹ C. in the presence of a catalyst comprising cupric chloride on an alumina support of surface area up to 50 m.<SP>2</SP>/g. or a silica support of surface area up to 200 m.<SP>2</SP>/g., said support having an average pore diameter of at least 400 Angstroms, subject to a disclaimer to the process of Specification 1,115,732. The chlorine source may be chlorine, hydrogen chloride or mixtures thereof. Byproducts obtained may be recycled. Catalysts exemplified are cupric chloride - potassium chloride, optionally in admixture with rare earth oxides.
Patent GB-413112-A (GB)
Title: Magnifying contrivances for the cursors of slide rules
IPC: G06G1/04
Filed: 1933-06-01
Abstract: 413,112. Slide - rules. THORNTON, Ltd., A. G., THORNTON, A. J., and GILES, W. H., Paragon Works, King Street West, Manchester. June 1, 1933, No. 15802. [Class 106 (i).] A magnifying contrivance for the cursors of slide-rules comprises a lens g, Figs. 1 and 3, in a mounting d formed with shaped wings d<1>, d2 adapted to grip the ball shaped end c<2> of a support rod c the other end of which is carried, by a similar swivel joint c<1>, in a bracket b, b secured to the cursor guide plate a'.
Patent GB-1082189-A (GB)
Title: Flameless cracking of gaseous and/or liquid vaporisable hydrocarbons
Inventor: LANGER JOHANN
IPC: C01B3/40
Filed: 1966-04-12
Abstract: Combustible gas is made by the method of the parent Specification, but the catalyst additionally includes 1 to 10% by weight of silicon dioxide. Graphite may be included in an amount 0.5 to 2% by weight. Process details, including the use of a platinum guard catalyst, are similar to those described in the parent Specification.
Patent GB-436850-A (GB)
Title: A combined vehicle body and chassis construction
IPC: B62D23/00
Filed: 1935-05-31
Abstract: 436,850. Vehicle bodies. BUDD MANUFACTURING CO., E. G., 2500, Hunting Park Avenue, Philadelphia, U.S.A.-(Assignees of Eksergian, C. L. ; 12141, Charlevoix Avenue, Detroit, Michigan, U.S.A.) May 31, 1935, No. 15857. Convention date, May 31, 1934. [Class 108 (i)] In a combined body and chassis construction, the body side walls or panels and side sill members form, at the lower margins of the body, boxsection longitudinal members. As shown, the side panel 10 extending from the rear panel 21 to the radiator 27 is combined with angular section sill members 15 extending from the front wheel suspension to the rear wheel suspension. The sill member varies in depth, the greatest depth being situated adjacent to the cowl and front door post and together with the lower portion of the panelling stops short of the radiator leaving a space in which the front axle, formed of sheet metal and of rectangular cross section is positioned, being welded to flanges 29 of the sill. The side portions of the cowl panelling are interconnected by the cowl top panel 24, the shroud pan 25 and the instrument board panel 26 which together with bracing 25<a> form a box-section structure. The side panelling 10 is in-turned at the doorways, as shown at 11, to form the doorposts and thresholds. Tubular cross bracings 30, 31 are provided adjacent the seat structures and bracing frames 33-35 with further braces 36-39 are provided. A bottom plate 19 which may be integral with the side panelling 10 is provided.
Patent GB-790696-A (GB)
Title: Improvements in or relating to pedal-assisted motor cycles
IPC: B62M25/00
Filed: 1955-06-02
Abstract: 790,696. Driving-gear; spray carburetters. SUDDEUTSCHES JLO WERK GES. June 2, 1955 [June 18, 1954], No. 15869/55. Classes 7(2) and 7(3) [Also in Group XXXI] In a pedal assisted motor cycle having the pedal crankshaft 5 built into a unitary engine and multi-speed assembly and the engine and pedal drives being effected through a single chain (not shown), the input shaft 3 of the multi-speed gear and the pedal crankshaft 5 are arranged between two vertical planes passing through the engine crankshaft 2 and a shaft 4 carrying the sprocket driving the chain. As shown a casing 1 houses the engine crankshaft 2 driving the shaft 3 through a clutch (riot shown) co-axial with the shaft 3, the shaft 3 being connected by a two-speed gear with the shaft 4. The pedal crank-shaft 5 is chain-connected with the shaft 4 for assisting the engine drive or starting the engine. The casing is formed in two symmetrical longitudinal halves, and is formed with an upper recess 16 housing the float chamber portion of the carburetter (not shown), the upper portion of which and an air filter (not shown) are shaped to conform with the casing 1.
Patent GB-1498804-A (GB)
Title: Pipeline tool
IPC: B08B9/055
Filed: 1974-04-10
Abstract: 1498804 Pipeline tool BRITISH PETROLEUM CO Ltd 2 April 1975 [10 April 1974] 15915/74 Heading F2N A pipeline tool comprises a tubular member 13 having a transverse closure 31, an outwardly radially expansible gripping and sealing means 23 actuated by fluid under pressure, supplied by a pipe 24 for sealing against the inside of a pipeline 12, a pipe 5 for supplying compressed gas for displacing a cleaning sphere 8 into the pipeline, a pipe 4 for supplying compressed gas for displacing a cleaning sphere 7 and closable apertures 25 and 26 through which gas may be allowed to escape. When the tool is used to clear an underwater pipeline, spheres 7 and 8 are sucked into the tubular member 13 by partly evacuating the member through pipes 35, 36, 4 and 5 with valves 9 and 10 closed. Then water is pumped into the members through pipes 35, 36, 4 and 5 any remaining air being expelled through apertures 25 and 26 which are then closed. Pipes 35 and 36 are sealed and the tool is inserted into the end of the underwater pipeline and the seal means 23 is actuated. The spheres 7 and 8 are then displaced into the pipeline in order by admitting compressed air through valves 9 and 10 respectively.
Patent GB-629194-A (GB)
Title: Apparatus for clamping the thread at the commencement of the winding operation on winding frames with automatic change of bobbins
IPC: B65H54/14
Filed: 1947-06-17
Abstract: 629,194. Winding thread. MASCHINENFABRIK SCHWEITER AKT.-GES. June 17, 1947, No. 15930. Convention date, July 1, 1946. [Class 120 (ii)] Apparatus for clamping the thread at the commencement of the winding operation on winding frames with automatic change of bobbins comprises a thread holder 6, consisting of a bar 8 and a cross bar 7 which is capable of sliding axially in the driving spindle 2. The spindle 2 has a spring-pressed axially moving ejector 3 and is itself able to slide in the bearing 1 of the winding frame. The cross bar 7 engages in a groove 14 in the end of the spindle 2 such that its ends extend slightly outside the periphery of the spindle. When a bobbin 10 is inserted the cross bar 7 is held in the groove 14 by means of the ejector 3 acting on the lug 9 ; the thread is guided so as to trail over the edge of the spindle such that on rotation the cross bar 7 " catches " the thread and holds it in the groove. When the bobbin 10 is completely wound the spindle 2 is pulled back thus ejecting the bobbin 10 and at the same time the rear end of the bar 8 strikes against the face 17, so that the bar slides forward in the spindle and releases the thread. The T-shaped thread holder shown is suitable if both directions of rotation are utilised but if only one direction of rotation is required to be used the thread holder may be L-shaped.
Patent GB-880277-A (GB)
Title: Improvements in or relating to pickup devices
IPC: G06K13/08
Filed: 1960-05-05
Abstract: 880,277. Sensing statistical records. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 5, 1960 [May 11, 1959], No. 15968/60. Class 106 (1). [Also in Group XX] A selected record sheet or film strip 11, Fig. 4, is removed from a storage bin 12 by a jaw assembly 13 which, after the bin has been positioned, is lowered so as to straddle the selected record with jaws 15, 16 each of which has a knife blade 17 sloping downwardly at an angle. The lowermost tips 18 enter between the adjacent records where they are located by the guide slots in the wall of the bin, and further movement guides the selected record between the jaws. The jaws are opened and closed under the control of a pair of cams acting through spring blades and rotated hydraulically or pneumatically by cylinders 58, 59, Fig. 1, One or more bins 12 are movably mounted beneath table 27 and the jaw assembly 13 is vertically displaceable on angular guides 29, 30 having running surfaces for rollers 33, 34 on carriage 28. The carriage is slowed down and stopped in the lowermost position by a rod 35 connected to the frame by a dashpot 35<SP>1</SP> and having a collar 37 against which the carriage strikes as it approaches the bottom position. The carriage is driven by a tape 38 attached to bracket 39 and passing over pulleys 40, 41, 42 and 43, the last being on the shaft of motor 44. Data is recorded on or sensed from the record by bringing the carriage down to grip a selected record in jaws 13, drawing it upward between lenses 46, 47 and stopping it at the desired position. The lower end stays in the bin to facilitate its return. The cylinders 58, 59 are mounted on the frame of the machine in a position to operate the jaws when these are in the lower position.
Patent GB-255049-A (GB)
Title: An improved clutch, coupling or shock absorber
IPC: F16D3/80
Filed: 1926-06-25
Abstract: 255,049. Eaton, W. T. July 10, 1925, [Convention date]. Hydraulic transmission of power.-A hydraulic clutch or coupling comprises two concentric members each provided on their adjacent peripheries with semi-circular or other recesses 6, Fig. 1. Liquid is contained in or supplied to the recesses from a chamber in the inner member. The parts may have additional transverse recesses 17, Fig. 5. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which, in addition to the peripheral recesses 6, Fig. 7 (Cancelled), radial recesses 23 are also formed. This subject-matter does not appear in the Specification as accepted.
Patent GB-569825-A (GB)
Title: Improvements in meat presses
IPC: A47J27/20
Filed: 1943-09-30
Abstract: 569,825. Meat pressing. NIELD, J. M., and SETON PRODUCTS, Ltd. Sept. 30, 1943, No. 16044. [Class 28 (ii)] In meat press of the kind having a container with an inner lid and an outer lid with handle and locking bar the outer lid is provided with equidistantly spaced pressure feet to exert a uniform pressure on the inner lid. As shown, a container 1 with a loose bottom 4 resting on an internal flange 5 has vertical rows of projections 2 with intervening notches 3 stamped on it at diametrically opposite points to engage the ends 12 of the locking bar 13. The locking bar lies in a groove in the outer lid 7 and is held with a limited degree of freedom by the suitably shaped lugs 9 of the handle 8 which is riveted to 'the outer lid at 10. The pressure feet, formed as depressions 11 in the outer lid 7. press down upon the removable inner lid 6.
Patent GB-678058-A (GB)
Title: Improvements in or relating to apparatus for finishing workpieces
IPC: B24B31/104
Filed: 1950-06-27
Abstract: 678,058. Chucks. WURTTEMBERGISCHE METALLWARENFABRIK. June 27, 1950 [Oct. 1, 1948; Oct. 1, 1948], No. 16070/50. Class 83 (iii). [Also in Group XXIII] During a finishing operation (see Group XXIII), a spoon 72 is held between a fixed jaw 74 and a jaw 75 clamped by a screw 78. The jaws are rotated by an electric motor 88 through worm gearing 97 in a head 86. The head is swung upwardly by a hydraulic piston 81 to enable the spoon to be replaced.