baber/WOPTO huggingface dataset:
Patent GB-1498845-A (GB)
Title: Processing of materials
IPC: B03C1/015
Filed: 1975-03-17
Abstract: 1498845 Treating minerals or mineral containing particles HAZEN RESEARCH Inc 17 March 1975 [25 March 1974] 10953/75 Heading C5G Mineral or mineral containing particles are treated with an iron carbonyl under conditions whereby there is substantially no thermal dissociation of the iron carbonyl as would provide a deposit of metallic iron on the particles and some of the particles are given an apparent magnetic susceptibility above a certain value or having their apparent magnetic susceptibility increased above the value such that at least some of these particles can be separated by a magnetic field from those particles having apparent magnetic susceptibility below this value. In an embodiment a particulate mixture of coal and pyrite containing impurities was comminuted to free impurity particles from coal particles, and the comminuted particles treated with a gas stream containing iron carbonyl vapour.
Patent GB-942485-A (GB)
Title: Apparatus for the production of rolled biscuits
IPC: A21C15/02
Filed: 1961-03-24
Abstract: 942,485. Rolling dough on a fork. G. QUEHEN, and CREPERIES DE LOC-MARIA. March 24, 1961 [May 27, 1960], No. 10968/61. Heading B5A. Dough is poured by a device 1 on to a heated moving support 2, a pad of cotton wool 5 preventing escape of the dough, cooked in a tunnel kiln 7, cut into sections by cutters 8, 9, rolled by forks 15 and flattening means 11 and directed through a swivel 12 on to a cooling mat 13. The fork 15 is advanced by a spindle 17, causing the convex surface 30 of a pawl 23 to slide over a shoe 32 lowering the pawl 23 into a recess 20 of a stationary tine 18, and rocking a movable tine 19 downwards to engage dough on the support 2. The fork 15 enters a ring 34 revolvably mounted in a housing 35; when the pawl 23 reaches the end of the shoe 32 the tine 19 lifts and revolves with the tine 18 winding the dough in co-operation with the flattening means 11. Then the fork 15 slides back from inside the ring 34, which urges the dough off the fork 15, the pawl 23 collapsing when it meets the edge 33 of the shoe 32 and being raised by a spring 26 at the end of the backwards movement.
Patent GB-580774-A (GB)
Title: Improvements in valves and valve seats
IPC: F16K1/42
Filed: 1944-06-08
Abstract: 580,774. Making cased valves. TECALEMIT, Ltd., and LE CLAIR, C. C. S. June 8, 1944, No. 11026. [Class 83 (ii)] [Also in Group XXIX] A method of making valve members or valve seats having a substantially rigid mounting or backing with a facing of deformable or flexible material comprises cutting or punching the required shape of valve member from a compound sheet of the material. The mounting material may be metallic or plastic sheets, which may be perforated, or rigid wire mesh and the facing material may be synthetic or natural rubber, a suitable plastic, felt, or cloth or fabric treated to render it impervious to fluids. Fig. 1 shows a disc valve formed by this method comprising a rigid disc 6 with a deformable facing 7 for co-operating with a seat 5. A larger disc may be cut and the outer annular portion of the facing material removed to leave a central seating portion, the outer part of the rigid disc then being cupped to form a guide. In Fig. 6, an annular ring of the compound material is cut to form a valve seat, the outer portion of the facings 31 being removed. In Fig. 4, a double-acting valve disc with a facing on either side' for co-operating with seatings 22, 23 controlling the inlet 12 to two outlets is shown, the rigid mounting being perforated.
Patent GB-692714-A (GB)
Title: Improvement in gas rectifier tube employing magnetic field
IPC: H01J17/14
Filed: 1950-05-04
Abstract: 692,714. Cold-cathode tubes. RADIO CORPORATION OF AMERICA. May 4, 1950 [May 14, 1949], No. 11067/50. Class 39(i) A gas rectifier tube suitable for  operation at low gas pressures anc high frequencies comprises a ring-shaped anode, a cathode in the form of a symmetrical figure of rotation arranged concentrically with and extending through said anode, the portion of the cathode which faces the anode containing a material of low work function, an envelope enclosing at least the discharge space, and means for establishing a magnetic field coaxially with the cathode, the end portions of the cathode having a diameter greater than the central portion, with at least a portion of the anode located between them. In one embodiment, Fig. 1, the cathode 1 comprises a short hollow cylinder preferably of non-magnetic material, having discs 2, preferably of magnetic conductive material, secured to the ends thereof to form a spool, The ring anode 3, preferably of non-magnetic material, is of approximately the same diameter as the discs 2 and is coaxial with and centrally disposed with respect to the cathode. Alternatively, the anode may be located closer to one end of the cathode or may be tilted with respect thereto. A magnetic field H is impressed along the axis of the tube and the gas filling is a light gas such as neon, mercury vapour, or hydrogen at a pressure of 10-3 to 10<SP>-5</SP> mm. of mercury. In an alternative embodiment, Fig. 2, the cathode 1 is in the form of the inner half of a hollow toroid of circular cross-section which may alternatively be of elliptical, rhomboidal or other cross-section. In another embodiment, Fig. 4, the cathode structure 1 is a rectangular torus having a central arm 8 encircled by a ring anode 3. The cathode structure forms the envelope of the tube and the end plates 10 and 11 are preferably of magnetic material so that the magnetic field of the poles N, S is concentrated in the electron trapping space. The anode 3 is supported by a lead 5 passing through a glass insulator 9. In any of the embodiments the whole of the cathode structure or only a portion adjacent the anode may be coated with material of low work function such as aluminium, and the ring anode may be of rectangular or other cross-section. A curve is given to illustrate the dependence of the starting time of conduction on the ratio of the cathode to anode diameter. The optimum starting time occurs when this ratio approaches 0.5.
Patent GB-110769-A (GB)
Title: Improvements relating to Wheels containing Motors.
Inventor: MARSHALL DALE
IPC: B62M7/12
Filed: 1916-08-07
Abstract: 110,769. Marshall, D. Aug. 7, 1916. Motor wheels.-Fig. 2 shews a longitudinal section of the hub of a wheel to which the rim is attached by spokes secured to the flanges E. The cylinder A is annular and the piston drives a pair of crank-shafts H<1>, H<2> through connecting-rods in the ordinary way. These crank-shafts carry bevel-wheels gearing with a bevel-wheel J which, with the wheel, is thus rotated about the fixed shaft. When it is desired to rotate the shaft, the cylinder is held against rotation. Flywheels K<1>, K<2> may be mounted on the crank-shafts to ensure uniform rotation. A waterjacket L<2> is provided round the cylinder and cooling ribs may be added. A silencer M surrounds the hub to which the exhaust passes through a tube T. The explosive moisture is supplied through the tubular shaft V<1> to the crank-chamber and thence to the cylinder through a port V<3>. One terminal of the ignition plug runs in contact with a live ring P in circuit with a magneto or a battery.
Patent GB-346567-A (GB)
Title: Improvements in foot power scooters
IPC: B62M1/24
Filed: 1930-04-09
Abstract: 346,567. Scooters. ETTEN, W. V. VAN, Bellingham, Whatcom, Washington, U.S.A. April 9, 1930, No. 11283. [Classes 136 (i), 136 (ii), and 136 (iii).] To increase stability, a scooter is provided on one side with a readily detachable supplementary supporting wheel. An additional rear wheel 28 is detachably secured to the scooter by means of a bar 24 having its looped rear end slotted to engage the axle 12 of the rear wheel 13, and its front end formed with a bayonet slot to engage a headed stud 29 on the frame bar 5. The scooter is propelled by the action of one foot on a pedal plate 22 on a lever 17, which is pivoted to the frame at 18 and is provided with a toothed segment 19 gearing with a pinion 14 adapted to drive the rear wheel 13 through a spring-pressed pawl 15 on the downstroke of the lever 17, the upstroke being effected by means of a coiled torsion spring 21. The lever 17 is guided by a pivoted loop member 20, which also acts as a stop. The other foot rests on a plate 23. A brake acting on the tyre of the rear wheel 13 comprises a wheel or roller 31 on a lever 32, which is pivoted at 34 and is connected by a rod 37 to a pedal lever 35 pivoted on the same axis 18 as the lever 17.
Patent GB-333513-A (GB)
Title: New azo dyestuffs
IPC: C09B35/362
Filed: 1929-04-11
Abstract: 333,513. Imperial Chemical Industries, Ltd., and Brightman, R. April 11, 1929. Addition to 330,607. Azo dyes.-Trisazo dyes, containing at least two carboxylic groups or two sulphonic groups or one of each and suitable for dyeing regenerated cellulose materials in level shades, are obtained by coupling tetrazotized 3-aminobenzene-1-azo- 4<1>-aminonaphthalene or a nucleus substitution product thereof with one molecular proportion of a phenol, a naphthol, or a carboxylic or sulphonic acid thereof and with one molecular proportion of the same or another component other than a naphtholarylketone or an arylide of 2: 3-oxynaphthoic acid. The same products are obtainable by coupling diazotized 3-nitrobenzene-1<1>-azo- 4'-aminonaphthalene or a. nucleas substitution product thereof with a phenol, a. naphthol, or a carboxylic or sulphonic acid thereof, reducing the nitro group, diazotizing the resulting amino group, and coupling with a suitable component. The following examples are specified. (1) The monoazo dyestuff 3-nitraniline # 1-naphthylamine is diazotized and coupled with salicylic acid, whereupon the nitro group is reduced and the aminodisazo product is diazotized and coupled (alkaline) with 2 :8 : 6-aminonaphtholsulphonic acid; the product dyes viscose deep brown. (2) The monoazo dyestuff 4-nitro-2- toluidine # Cleve's acid is diazotized and coupled with 2-naphthol, whereupon the nitro group is reduced and the aminodisazo product is diazotized and coupled (alkaline) with 1 : 8- aminonaphthol-2 : 4-disulphonic acid ; the product dyes viscose blue. A table is also given showing the shades obtainable on viscose silk with the following products :-(1) benzoyl- 2 : 8 : 6-acid (alkaline) # 4-nitro-2-anisidine (reduced) # Cleve's acid # o - cresotinic acid; (2) 2 : 8 : 6-acid (alkaline) # 3-nitraniline (reduced) # Cleve's acid # 1 - naphthol-4- sulphonic acid ; (3) phenyl-2 : 8 : 6-acid (alkaline) # 3-nitranilne (reduced) # 2-ethoxy- Cleve's acid # salicylic acid; (4) phenyl- 2 : 8 : 6-acid (alkaline) # 3-nitraniline (reduced) # Cleve's acid # 1-naphthol-5-sulphonic acid; (5) 1 : 8 : 4-acid (alkaline) # 4- nitro-2-anisidine (reduced) # Cleve's acid # 1-naphthol-4-sulphonic acid; (6) acetyl- 2 : 8 : 6-acid (alkaline) # 3-nitraniline (reduced) # Cleve's acid # salicylic acid; (7) 11-acid (alkaline) # 3-nitraniline (reduced) # 1-naphthylamine # salicylic acid. Specifications 19743/92, 7330/93, 9972/93, and 5636/94 are referred to.
Patent GB-220978-A (GB)
Title: Improvements in automatic circular looms
IPC: D03D37/00
Filed: 1923-04-27
Abstract: 220,978. Bruno, L. April 27, 1923. Stop-motions, warp; ,stop-motions, weft.-In circular looms having warp carriers provided with movable supports, which are moved to transfer the warp carriers from one plane to another, the warp 37, Fig. 3, passes from the warp carrier 5 through an aperture in a spring- controlled bar 40 slidable in a frame 39 and engages flat springs 40<1>. When the warp breaks, the spring 41 draws the bar into position to complete an electric circuit and operate a relay device to stop the loom. The wefts may pass through similar devices.
Patent GB-1509561-A (GB)
Title: Alumina material
IPC: H01J61/30
Filed: 1975-03-19
Abstract: 1509561 Transparent alumina GENERAL ELECTRIC CO 19 March 1975 [22 March 1974] 11446/75 Heading C1A [Also in Division H1] A high-density, polycrystalline alumina body having flux-polished major surfaces may be made by physically contacting the major surfaces of a light transmissive polycrystalline alumina body with a molten inorganic flux, preferably alkali metal borate, at elevated temperatures, thus increasing the optical transmission.
Patent GB-541387-A (GB)
Title: Improved means for use in the practising of golf strokes
IPC: A63B63/00
Filed: 1940-07-11
Abstract: 541,387. Golf-practising appliances. CAVANAGH, P. J. July 11, 1940, No. 11565. Convention date, July 18, 1939. [Class 132 (ii)] In an apparatus for practising golf strokes a vertical target 15 of stretched canvas is carried by links 14 so as to move rearwardly under the impact of a driven ball whilst maintaining a vertical position, and a pointer 21 under the control of the to-and-fro movements of the target moves over a dial graduated in yards. One pair of links 14 carries a balance weight 18, the balancing effect being such as to permit the target to return to its forward position after displacement. A bent arm attached to the links is connected by a chain 27, pulley 26 and gearing, to the pointer spindle to actuate the pointer in the forward direction whilst a suspended weight restores the pointer. In order to afford the player time to observe the pointer reading, the return of the pointer is delayed until the target has returned to its forward position. This delay is effected by a weighted lever and chains which connect the links 14 to a pawl engaging one of the pointer gear wheels. During a registering movement of the pointer the pawl is urged against the gear teeth by a suspended weight, and holds the gearing and pointer when they reach the end of their movement. When the target returns to its forward position it permits the weighted lever to raise the suspended weight thereby liberating the pawl and allowing the pointer to return to its zero position.
Patent GB-1281448-A (GB)
Title: Improvements in or relating to printing processes
Inventor: HAGGAS ROBERT HARRY
IPC: B41M7/00
Filed: 1970-03-11
Abstract: 1281448 Printing processes VALLEY PRINTING CO Ltd 8 June 1971 [11 March 1970] 11584/70 Addition to 1157312 Heading B6C A colour print comprises a flexible layer of unreceptive thermoplastic sheet material (as defined below) to which has been conventionally printed a layer of printwork in conventional ink (as defined below), the ink being such as normally is used for printing on paper and therefore not naturally adherent durably to such sheet material, and an overcoating of appropriate flexible synthetic lacquer (as defined below) that has permeated the printwork and has durably bonded the printwork to the base layer and has also provided a protective durable coating. Conventional inks are those defined as being oxidation polymerable colouring media suited for printing on paper. The specific sheet materials referred to are a group consisting of polyolefins, polyurethanes; polycarbonates; polyacetates and acetal copolymers. An appropriate synthetic lacquer comprises a lacquer which satisfactorily bonds to the particular type and grade of thermoplastic sheet material employed.
Patent GB-118145-A (GB)
Title: Improvements in or relating to the Treatment of Patients with specially Modified Air.
Inventor: CLAES JOHN
IPC: A61G10/02
Filed: 1917-08-13
Abstract: 118,145. Claes, J. Aug. 13, 1917. Treatment, special systems of.-Apparatus for the treatment of patients by means of rarefied air comprises a treatment chamber A and an antechamber B each having a separate connexion to a suction pump F. Glass panels a<1>, b<1> are provided and each chamber is fitted with an airtight door operated mechanically or magnetically. Air from a drier E and ozonizer D is passed through pipes d<1> to regulating valves in each chamber and is withdrawn through pipes d<2> fitted with non-return valves f<2> and a barometer J and connected to the pump by a flexible connexion f<3>. A shut-off valve d<3> on the outlet pipe from the antechamber B allows of ingress or egress without disturbing the pressure in the main chamber.
Patent GB-1418143-A (GB)
Title: Cartridge for recording media
IPC: G11B23/04
Filed: 1973-03-12
Abstract: 1418143 Tape cassettes BADISCHE ANILIN- & SODA-FABRIK AG 12 March 1973 [13 March 1972] 11753/73 Heading B8M [Also in Division G5] Two web-form recording media, e.g. a magnetic tape and a film 5, are carried on respective substantially coplanar spools 2, 3 in a cassette 1 having a pair of opposed openings 4 in its major faces. In use, a member II for actuating cassette locking and/or unlocking means in recording and/or playback apparatus extends through one or both of the openings 4, which as shown are separated from the interior of the cassette by a continuous wall 4a, Fig. 2. The cassette may contain replaceable adhesive material, for collecting dust, resilient discs 16, Fig. 3, which press the spools 2, 3 against annular braking members 17 or against drive spindles in use, and spring-mounted guides 7, Fig. 2, for smoothing the movement of the film 5 and its spools 3.
Patent GB-151224-A (GB)
Title: Improved sanitary dustbin
IPC: B65F1/02
Filed: 1920-04-28
Abstract: 151,224. Devers, A. E. April 28, 1920. Refuse-bins.-To promote ventilation, the bottom is perforated at the centre and is fitted with legs.
Patent GB-118008-A (GB)
IPC: F16G13/06
Abstract: 118,008. Brampton Bros., and Wadhams, G. Oct. 9, 1917. Driving and like chains with separate joint pins.-In driving and conveyer chains, and especially those for conveying coal through furnaces, the surfaces between the pins 7 and the bushes 6 are lubricated by a non-ferrous metal, for example brass, inserted in grooves 8 in the pins or bushes or in both. Washers 3 of felt, leather, asbestos, &c. inserted in recesses in the contacting faces of the link plates 1, 4 prevent the entry of dust to the bearing surfaces.
Patent GB-1422632-A (GB)
Title: Dc chopper circuits
IPC: H03K3/57
Filed: 1972-03-14
Abstract: 1422632 Control of D.C. motors BRITISH RAILWAYS BOARD 12 June 1973 [14 March 1972] 11810/72 Heading H2J A system for supplying a load, such as a D.C. series motor 11, comprises means whereby the rise of current in the load after switch on is gradual and controlled. A D.C. series motor 11 is connectable to a D.C. supply 1 by means of a thyristor 9 and an energy storage circuit including an inductor 3 and a capacitor 4 is supplied by the D.C. supply 1 by way of a thyristor 2. Across the capacitor 4 is an energy bleed circuit comprising an inductor 6 and resistor 7 and a thyristor 5, the resistor 7 having a value high compared with that of the motor 1. In order to run up the motor from standstill to full speed the thyristor 2, is fired to charge the capacitor 4. To prevent excessive currents in the motor the thyristor 5 is turned on before the thyristor 8, thus part of the energy stored in the capacitor 4 is bled off and the remainder fed to the motor 11 by way of the thyristor 8 to start the motor turning. As the motor accelerates the thyristor 8 is turned on earlier so that more and more of the energy stored in the capacitor 4 is supplied to the motor until a point is reached where no energy is bled off in the energy bleed circuit 6, 7. The main thyristor 9 is simultaneously fired as in a conventional D.C. chopping circuit, the voltage across the capacitor 4 functioning as a turn off voltage therefor. In a second embodiment the inductor 3 only is used for use in both the energy charging and energy storage circuits.
Patent GB-826598-A (GB)
Title: Hermetically sealed pressure sensitive electric switches
IPC: H01H35/26
Filed: 1958-04-14
Abstract: 826,598. Fluid actuation of switches; switch cases. PARMATIC ENGINEERING Ltd. April 14, 1958 [April 15, 1957], No. 11826/58. Class 38 (5). A switch 15 which is operable by a pressure-sensitive device is mounted in a casing 12 upon which is sealed a socket 22 containing pins 19. The casing 12 is also sealed to a plate 10 to which is sealed one end of a bellows 39, connected at its other end to an arm 36 pivoted at 32 outside the casing and between the ends of the bellows. The arm 36 is acted on by an adjustable spring 46 and by the stem 45 of a piston 57a acted on on opposite sides by different pressures, and the arm 36 carries an arm 41 with an adjustable screw 70 which bears on the switch actuating member 17.
Patent GB-607125-A (GB)
Title: Improvements in or relating to bearing devices
IPC: F16C35/067
Filed: 1945-05-11
Abstract: 607,125. Ball and roller bearings; disc wheels. HOLLOWAY, A. E. May 11, 1945, No. 11854. [Classes 12 (i) and 144 (i)] A ball or roller bearing for an axle passing through a member comprises a groove in the axle forming the inner race and a pair of plates embracing the member and forming the outer race. The axle 12 carries a pair of wheels and has a groove 14 for balls or rollers 15 engaged by plates 19, 20 which embrace a support 13. Two sets of balls or rollers may be used with three plates and two grooves in the axle. According to the Provisional Specification, shims may be used to adjust for wear.
Patent GB-164937-A (GB)
Title: Improvements in turrets for lathes and other machine tools
IPC: B23Q16/10
Filed: 1920-04-29
Abstract: 164,937. Robson Machine Tool Co., Ltd., and Townsend, G. S. April 29, 1920. Turret.-The control motions of a lathe or other turret are all effected by a single handle. The base of the turret is formed with a sleeve 2<b> in which is keyed a stud 2<c>. The turret revolves on the sleeve and has recesses to engage a spring index bolt 3a. A cam 4 keyed to the stud 2<c> has a groove 6 for the reception of a pin 5 extending from the boss of a lever 4a. A ring 10 fixed to the cam 4 coacts with a ring 11 secured to the boss of the lever. In operation the pin 5 moves along a straight part of the groove 6 until the clamping projections a, b on the rings 10, 11 are disengaged, the inclined part then causes the turret to rise clear of the index bolt and on the pin reaching the end of the slot the turret is rotated through one station as' permitted by the spacing of the projections a, b. A spring pin engaging countersinks in the base enables the operator to feel when the turret is in correct position for the re-engagement of the index bolt or return of the hand lever. A spring pawl prevents reverse rotation of the turret and is fitted with a pin-and-slot device for enabling the pawl to be retained in an inoperative position when desired.
Patent GB-816087-A (GB)
Title: A hydraulic system for motor vehicles, more particularly agricultural tractors
Inventor: RITTER KASPAR
IPC: B60T13/18
Filed: 1957-04-11
Abstract: 816,087. Hydraulic systems. ALLGAIERWERKE G.m.b.H. April 11, 1957, No. 11897/57. Class 69 (2). An exhaust line of an hydraulic system for a tractor is maintained under a slight back pressure which is used to maintain an infinitely variable hydraulic gear under pressure. A pump 1 selectively supplies liquid to a ram 7 or a motor 8 under the control of a valve 6. An exhaust line 10 has a valve 11 therein for maintaining a slight pressure upstream of the valve, liquid under this pressure being supplied through a line 14 to an hydraulic gear 15. An accumulator 17 maintains line 10 under pressure when valve 6 is in the position for the operation of the ram 7. A valve 13 in the line to the ram opens at pressures greater than the pressure prevailing in line 10.