baber/WOPTO huggingface dataset:
Patent GB-520853-A (GB)
Title: Improvements in or relating to pedal-driven cycles and pedal-assisted motorcycles, and the like fitted with back-pedalling brakes
IPC: B62L5/00
Filed: 1938-11-02
Abstract: 520,853. Back-pedalling brakes for cycles. FRANCIS & BARNETT, Ltd., FRANCIS, G. I., and KING, W. K. Nov. 2, 1938, No. 31663. [Class 136 (i)] In back-pedalling brake-operating mechanism for cycles, of the type operated by projections &c. on the crank shaft or crank on backpedalling and adapted to be thrown out of action to enable the cycle to be wheeled backwards, the brake-operating connection is effected through a trip lever which can be thrown out of operation when desired and is adapted to be reset by a trip device associated with the crank when the latter is rotated in a forward direction. A bell-crank lever 6, 6a is mounted to turn on the pedal-crank shaft 3, the arm 6 being connected by a rod 10 to the brake. A trip lever 7, 7a is pivoted to a lug 6b on the arm 6a, and is engaged on back-pedalling, by one or more projections 8 on the boss of the crank 4, the arm 7 of the trip lever extending laterally over the arm 6a of the bell-crank lever, which is thus turned in the clockwise direction to apply the brake. The arm 7 engages a rubber buffer 11 on the arm 6a. When it is desired to wheel the cycle backwards, the trip lever 7, 7a is turned clockwise through 90 degrees by hand into an inoperative position, the trip lever being held in either of its two positions by a right-angular spring 12 the horizontal arm of which lies between the trip lever and the arm 6a. The arm 6a is looped inwards to engage a fixed stop 13 on the chain stav 5 under the action of the brake return spring. The trip lever 7, 7a is automatically returned to its operative position on forward pedalling by a trip device 9 pivoted to the crank 4 and provided with a laterally-extending pin 9a for engagement with the arm 7a.
Patent GB-648162-A (GB)
Title: Improvements in or relating to strap devices for wrist-watches
IPC: A44C5/22
Filed: 1948-12-08
Abstract: 648,162. Wrist-watch straps. GRUENTHAL. M. Dec. 8, 1948, No. 31728. [Class 43] A wrist-watch bracelet has attached at or near one of its free ends a member which is slidably engaged in a guideway attached to and extending from a point at or near the other free end, so that when the watch is in position, a closed loop is formed, the size of which is adjusted by displacing the member along the guideway. Straps 1, 2, attached to a watch 4, each comprise two superposed strips stitched together. The inner strip of the strap 1 is slotted longitudinally from a point near its free end 1a, tapes 7a which carry the teeth 7 of a sliding-clasp fastener being attached to the marginal material 1b of said slot. The pull-tab 9 of the slider 8 has a locking projection 9a which co-operates with the teeth 7 and is engaged in a loop 10, formed by bending back the end of the outer strip of the strap 2; the projecting end 11 of the corresponding inner strip prevents the slider 8 from contacting the wrist. In use, the straps are adjusted by pulling the free end 1a of the strap 1 away from the strap 2 to displace the slider 82; the end 1a is then threaded through a fixed retaining loop 12 and a slidable loop 12a on the strap 2.
Patent GB-1103598-A (GB)
Title: Improvements relating to digital-analogue converters
Inventor: PENDERIS ADRIAN JACOBUS
IPC: H03M1/00
Filed: 1964-08-05
Abstract: 1,103,598. D to A converter. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 19 July, 1965 [5 Aug., 1964], No. 31734/64. Heading G4. The converter comprises a voltage generator for each digit, and includes at least one zero voltage generator, the output impedance presented by each generator is the same, and switches connect the same number of generators in parallel for each digital input combination, whereby the output impedance of the converter is constant. The generators comprise voltage dividers connected across a constant voltage source, with the tapping points being connected to one output terminal through respective switches, and the zero and maximum voltage generators being single resistors connected to the same output terminal through respective switches at one end and to the low and high sides of the source respectively at the other end. Converters for 2 out of 5 code, and natural binary code are described. The natural binary converter comprises a set of zero voltage generators which are switched across the output teminals to provide an output impedance corresponding to the number of zeros in the digital input.
Patent GB-1306918-A (GB)
Title: Method of silylating organic vinylic polymers
IPC: C08F2/38
Filed: 1971-07-07
Abstract: 1306918 Polymers terminated by silyl groups DOW CORNING CORP 7 July 1971 [25 Aug 1970] 31829/71 Heading C3P A process for preparing polymers terminated by silyl groups comprises polymerizing one or more vinyl monomers by free radical initiation in the presence of an organosilicon chain transfer agent of the general formula X 3-x R<SP>1</SP> x SiRY or (X 3-x R<SP>1</SP> x SiRS) z  in which R<SP>1</SP> is a monovalent hydrocarbon group free of aliphatic unsaturation and having 1-18 carbon atoms, R is a divalent hydrocarbon group free of aliphatic unsaturation and having 1-18 carbon atoms, X is a monovalent radical hydrolysable by water at room temperature, x is 0, 1 or 2 and Y is a free radical activated group having a chain transfer constant greater than 10<SP>-3</SP>. R<SP>1</SP> can be methyl, ethyl, propyl, isopropyl, butyl, phenyl, octyl, octadecyl, benzyl, naphthyl, xenyl, cyclopentyl, cyclohexyl, methylcyclohexyl, tolyl, xylyl, 4-isopropylphenyl, or 2-phenylpropyl. R can be methylene, ethylene, propylene, butylene, hexylene, octadecylene, phenylene, tolylene, xylene, xenylene, naphthylene, cyclohexylene, -CH 2 C 6 H 4 CH 2 -, or X may be any OZ group where Z is C 1-18  hydrocarbon or halo-substituted hydrocarbon, or any acyl-, amino-, ketoxime-, ureido-, carbamateamide-, sulphate-, sulphate ester-, phosphate-, phosphate ester-, cyano-, or isocyanate group, Y may be for example a bromine atom or an. amino or mercapto group. A long list of monomers is given. In the examples, the polymerization of (1) styrene in emulsion, (2) methyl methacrylate in bulk, (3) and (4) styrene in bulk, is described, using organosilicon compounds selected from
Patent GB-1482468-A (GB)
Title: Aerosol valve assembly
IPC: B65D83/14
Filed: 1974-07-18
Abstract: 1482468 Pressurized dispensing container valves R H LAAUWE 18 July 1974 31898/74 Heading F1R A dispensing valve for a pressurized dispensing container is operated with snap action and controls the outlet from a plurality of compartments by controlling ports opening to a mixing chamber created when the valve is operated, the mixing chamber communicating with an outlet. As shown in Figs. 2 and 3 a valve-member 13 seats against a gasket 11 and is slidable in a valve chamber 9 to open the port 17 in the valve stem 15 to a plurality of ports 20, 21 connected to separate compartments, downward movement of the member 13 being opposed by means comprising a ring of spring fingers 23 integrally moulded with the housing 2 and engaging a shoulder 26 out of which engagement they snap when sufficient pressure is applied to the valve stem 15. The spring fingers acting on a tapered surface of the member 13 act as a return spring for the valve. The spring fingers may be replaced by a sufficiently resilient cup. In the embodiment of Fig. 7, the detent bead 28C, is formed on the housing and the valve-member is hollow and slotted to allow it to snap out of engagement with the bead. The upper surface of the valvemember may have an annular rib 27 for engagement with the gasket 11 as shown in Figs. 2, 3 or the gasket may have an annular rib Fig. 5, (not shown) and Fig. 7, and the valve-member may have a lip for sealing engagement with the wall of the chamber 9 and the gasket 11. The port 17 may be open to the space between the end of the member 13 and the gasket 11 when the valve is closed or be closed by the gasket in relevant constructions.
Patent GB-1172958-A (GB)
Title: A Method for Producing Unsaturated Nitriles
Filed: 1968-07-04
Abstract: 1,172,958. Ammoxidation of olefins. NITTO CHEMICAL INDUSTRY CO. Ltd. 4 July, 1968 [13 July, 1967], No. 31914/68. Heading C2C. Acrylonitrile or methacrylonitrile are obtained by the oxidation of propylene or isobutylene by contacting a mixture of propylene or isobutylene, ammonia and oxygen in the vapour phase with an oxidizing fluidized solid catalyst at a temperature of 350-600 C. under a pressure of atmospheric to 5 kg./cm.<SP>2</SP> gauge, characterized in that ammonia in an amount of 50 to 90% of the total ammonia feed is fed into a fluidized bed reactor at the bottom portion thereof which is the same or approximately the same feed position as that of olefin and oxygen, and 10-50% of the total ammonia feed (i.e. the split ammonia) is fed at a position which is within the range of 5 to 50% of the height from the bottom of the fluidized catalyst bed and which is higher than the feed position for the other starting gases, the molar ratio of oxygen fed to olefin fed being from 1 to 4 : 1. The catalyst employed, which may be supported, may be bismuth phosphomolybdate, bismuth molybdate, bismuth phosphotungstate, tellurium phosphomolybdate or tellurium molybdate, and air may be employed as the source of oxygen. The molar ratio of ammonia/olefin in the starting mixture is suitably 0À5 to 2 respectively, and water may be present in a molar ratio to olefin of 0À5 to 10. The reaction zone between the ammonia inlet feed at the bottom portion of the fluidized bed and the feed inlet for the split ammonia at higher positions may be divided into a plurality of sections by means of perforated elements. Saturated nitriles may be obtained as byproducts in small quantities.
Patent GB-365657-A (GB)
Title: Improvements in bubble towers and the like fractionating columns
IPC: B01D3/20
Filed: 1930-10-24
Abstract: 365,657. Bubble towers. REAVELL, J. A., 5, Grosvenor Gardens, London. Oct. 24, 1930, No. 32043. [Class 55 (ii).] In a bubble fractionating tower having plates 1 each down tube 3 is disposed vertically over a bubble cap 6 of the next plate and is sealed by seal pot 4 provided with liquid distributing arms 5. The bubble cap 6 may support and be integral with the seal pot as shown. The height of the down tube above the plate can be adjusted vertically to determine the depth of liquor on the plate by providing an inner tube 3b, Fig. 3, slidable in the outer tube 3 which is locked in position by a flange 3c and lock nut 3d. The ends of the arms 5 may be provided with adjustable sleeves having slots so that the flow of liquid can be directed as required.
Patent GB-427949-A (GB)
Title: Improved construction of pallets for forming roofing tiles
IPC: B28B7/00
Filed: 1934-11-08
Abstract: 427,949. Pallets for moulding and drying tiles. BROWN, T., Carswell House, Rodings Lane, Ilford, Essex. Nov. 8, 1934, No. 32079. [Class 87 (ii)] [See also Group X] A pallet for use in making roofing-tiles is provided with side bearers 1 of a height substantially greater than, e.g. twice, the thickness of a normal tile 3, the bearers 1 acting to protect the edges of the tile during its passage through the machine, to facilitate the handling of the pallets during stacking, and to form an aircirculating space 4 above the top of each tile when the pallets are stacked in tiers for drying the tiles. The pallets are provided with sunk recesses to form locking nibs 5 on the tiles and with studs 7 to form nail holes 7a. The pallets can be used to make two tiles conjointly.
Patent GB-524802-A (GB)
Title: Improvements in and relating to the manufacture of fluorescent materials
IPC: C09K11/59
Filed: 1938-11-05
Abstract: 524,802. Fluorescent silicates and tungstates. BRITISH THOMSON-HOUSTON CO., Ltd., ANDERSON, J. T., and WELLS, R. S. Nov. 5, 1938, No. 32095. [Class 1 (iii)] [Also in Group XL] In the manufacture of fluorescent compounds an intimate association of two substances which are to be reacted to form such a compound, e.g. under the influence of heat, is obtained by the precipitation of one substance on particles of the other. For example, in the production of zinc silicate, SiO  2  may be precipitated from a solution of a soluble silicate containing ZnO or an insoluble zinc compound may be precipitated from a zinc salt solution containing SiO 2 . Similar means may be used in the preparation of the silicates of calcium, cadmium and beryllium and the tungstates of zinc, calcium, cadmium and magnesium. Specification 485,232, [Group XX], is referred to. Reference has been directed by the Comptroller to Specifications 333,884, [Class 1 (iii)], 347,223 and 485,232, [Group XX].
Patent GB-1261195-A (GB)
Title: Lighting systems for road vehicles
Inventor: HARGROVES ROBERT ARTHUR
IPC: F21V14/08
Filed: 1968-07-05
Abstract: 1,261,195. Photo-electric headlamp dipping. JOSEPH LUCAS (INDUSTRIES) Ltd. June 20, 1969 [July 5, 1968], No.32140/68. Heading G1A. A shutter 26 reduces the size of a vehicle driver's headlamp beam when light from an oncoming vehicle shines on a photo-cell. The projected beam and the light from the oncoming vehicle pass through a common lens 16. The projected beam is composed of wavelengths to which the photo-cell does not respond. The risk of operation of the system in response to the reflection of the projected beam back into the system is thereby minimised. A dichroic mirror 29 reflects red and infrared light from a white light source 17 while transmitting the remainder to a lens assembly 16 which directs it as a parallel beam for illuminating the road. Light from an oncoming vehicle passes through the lens 16 and the red and infrared components are reflected by the mirror 29 and by a further mirror 28 into a receiver including a photo-cell 21 responsive to red and infrared light. The remaining light from the oncoming vehicle is transmitted by the mirror. The light falling on the photo-cell 21 produces a current which operates a linear actuator 23 to move shutter 26, 27 across apertures 14, 15 respectively. Aperture 15 is always slightly larger and wider than aperture 14 and the shutters 26, 27 will move sufficiently to avoid dazzle. When light is at the extreme end of aperture 15 the aperture 14 can remain fully closed because light still falls on the photo-cell 21 to hold the shutters 26, 27. Other arrangements. Dichroic mirror 29 transmits red and infrared wavelengths while reflecting the remaining wavelengths, the positions of the projector and receiver being inter-changed. Alternatively the reflector 18 of the source 17 is dichroic and transmits red and infrared wavelengths so that light issuing from the aperture 14 is devoid of red and infrared wavelengths. The mirror 29 is then not dichroic but is a conventional half-silvered mirror. The positions of the projector and receiver may be inter-changed.
Patent GB-342671-A (GB)
Title: Improvements in and relating to echo sounding apparatus
IPC: G01S1/72
Filed: 1929-10-23
Abstract: 342,671. Recording-mechanism. Mc- GEACHY, J. A., Admiralty Research Laboratory, Teddington, Middlesex. Oct. 23, 1929. No. 32215. [Class 106 (iv).] In recording depths or distances obtained by the echo-sounding method, pens 56 are driven by a chain 57 across a record strip 37. When the distance of a pen from the left-hand edge corresponds to the depth, the circuit through a coil 39 is broken and the record strip moved one step. If no impulse is received during the traverse of a pen, the strip receives a step by the breaking of the circuit as an insulating segment 47 on a drum 45 passes under a brush 50. When an impulse is received, the insulating segment is short-circuited by the closing of contacts 51D, the second record strip step then being eliminated.
Patent GB-217851-A (GB)
Title: Driving device for forced lubrication apparatus
IPC: F16N13/10
Filed: 1923-12-27
Abstract: 217,851. Clausen, C. H. Dec. 27, 1923. Cam - actuated pumps; lever - actuated pumps; stroke, varying; multipleacting piston, pumps; valves, arrangement of. - In a multiplepump lubricator, the piston 8 and piston valve 9 of each pump unit are operated by levers 10, 11 and cams 7, 6 on a common shaft. The cams have four eccentric portions corresponding to working periods and four intermediate concentric, portions corresponding to resting periods of the piston and valve. The forks of the levers engaging the cams open at their lower ends to enable any pump unit to be removed from the reservoir. The piston delivers alternately to a sight-feed 20 and to the parts to be lubricated. During the suction strode liquid enters the cylinder through a pipe 16, an annulus 15 on the valve, and a port 14. During the first delivery stroke the liquid passes through a port 18, a passage 17 in the valve, and a channel 19 to the sight-feed 20; during the next delivery stroke the liquid passes through the port 18, a, passage 21 in the valve, and the delivery passage 22. The lever 10 actuating the piston 8 may have a lost-motion connection to enable the stroke to be adjusted by means of a screw 13. The cam 7 is symmetrical on opposite sides of a plane through the axis of rotation, but the cam 6 is shorter on one side than on the other.
Patent GB-1101810-A (GB)
Title: Catalytic oxidation of alkyl aromatic hydrocarbons
IPC: B01J23/20
Filed: 1965-07-28
Abstract: 1,101,810. Oxidation catalysts. PRINCETON CHEMICAL RESEARCH Inc. 28 July, 1965 [28 July, 1964; 30 June, 1965], No. 32267/65. Heading B1E. [Also in Divisions C1 and C2] Oxidation catalysts comprise Nb and V on a carrier. The catalyst may be supported on any conventional carrier, e.g. SiC, MgO, SiO 2  or Al 2 O 3 . Promoting components which may be included are alkali metals and alkaline earth metal oxides, sulphate, phosphates, B, Ag, Mu, P, Sb or As. The catalyst may have a particle size ranging from 1/16 to 1/2".
Patent GB-639253-A (GB)
Title: Improvements in and relating to light-impulse systems
IPC: H04B10/11
Filed: 1946-10-31
Abstract: 639,253. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). Qct. 31, 1946, No. 32837. [Class 39 (i)] [Also in Group XL (b)] The distance of an object is measured by the time for reflection of visible or near visible light pulses having a duration which is a fraction of the time required for reflection of pulses from the object. Light pulses are produced by spark-discharge under pressure from high-voltage capacitors in a generator 10, described below. The pulses are focused by a mirror 11 into a narrow beam, and light pulses reflected from the object are focused by a mirror 13 on to a photo-electric cell 14 connected to an amplifier 30 to produce a vertical trace B on a cathode-ray indicator 18. The horizontal time-base is synchronized with the initial light-pulses by a photo-cell 20, whereby the position of the trace B along the horizontal trace A indicates .the distance of the object. The light-pulse generator 10 comprises a cylindrical metal container 60, Fig. 2, with a semispherical glass window 61 at one end covering aluminium discharge electrodes 91, 90 connected respectively to the container and a common terminal 80 of four banks of series connected capacitors 73. The case is filled with nitrogen or a rare gas such as neon at 10-100 lbs./sq. in. and the capacitors charged from an A.C. supply through resistors 97 to 10-20 kV, the spark-over voltage being determined by adjusting the electrode gap. By this construction the discharge circuit inductance is only 0.05 �H for an effective capacitance of 0.01 �fd., whereby a steepfronted, short-duration light-pulse having an intensity up to 50 kW is produced.
Patent GB-1271391-A (GB)
Title: Improvements in or relating to the preservation of crop material in combine harvesters
IPC: A01D41/12
Filed: 1969-06-26
Abstract: 1,271,391. Preserving harvested material; crop preservation. SPERRY RAND CORP. 26 June, 1969 [13 Sept., 1968], No. 32390/69. Headings A1F and A2D. A combine harvester comprises a crop storage tank and a conveying means or auger for conveying the crop to or from the tank. A preservative applicator discharges preservative which may be propionic acid onto the conveyed crop. The harvested material may be sprayed with a liquid preservative held in a tank 21 and conducted through a conduit 30 to nozzles 33, 34 from which it is sprayed at a controlled rate onto the material passing through the auger 19. The nozzles may be arranged to deliver preservative material from the central axis of the rotating auger radially outwards, Figs. 5, 6 (not shown). The preserving process may be arranged to take place at the free end of the shute 15 or along its length. Further the process may be applied at any part of the cycle of harvested material through a harvesting machine either by injection of the preservative at right angles to the direction of conveyed harvested material or by vaporisation in a portable silo on the machine. The tank 21 containing the preserving material is replaced when empty from a position in which it has been lowered hydraulically away from the operating position.
Patent GB-655996-A (GB)
Title: Improvements in axle mountings of trailers and other vehicles
Inventor: ALLEY STEPHEN ERIC
IPC: B60G9/04
Filed: 1948-12-15
Abstract: 655,996. Vehicle undercarriages. RUBBER BY-PRODUCTS (WARWICKSHIRE). Ltd. Dec. 15, 1948. No. 32405. [Class 108(ii)] A vehicle axle comprises a shaft rotatably mounted at an obtuse angle to the longitudinal axis of the vehicle, the shaft having oppositely directed crank arms fixed to its ends, the crank arms being parallel and each carrying a stub-axle so that the stub-axles are in line. The shaft may be carried by the vehicle frame or by one member of a turntable. Normal spring- ing may be provided, or the shaft may be designed to act as a torsion spring. Figs. 3 and 5 show the invention applied to a trailer having a turntable; the lower member 16 of the turntable has secured thereto  a channel member 18, which carries bearing 19 at each end for the shaft 20. The bearings may be rubber bushed. The shaft 20 has welded to its ends oppositely directed crank arms 29 each carrying a stub axle 27. As shown in Fig. 5, an obstacle of height 31 encountered by one wheel lowers the other wheel relative to the vehicle, whereby the vehicle is raised by a height 32 only half the height of the obstacle. Rotary movement of the shaft 20 is limited by a diametrical projection 23 with rubber buffers 24. The central portion of shaft 20' may be reduced in section to act as a torsion spring Fig. 7, illustrates how the invention may be applied to the rear wheels 38 of a trailer whose front wheels 37 are steered by lateral movements of the pivoted draw bar 33.
Patent GB-629810-A (GB)
Title: Improvements in and relating to smokers ash trays
IPC: A24F19/00
Filed: 1947-12-09
Abstract: 629,810. Smokers' ash-trays. WYNER, H., and ROTHMANS, Ltd. Dec. 9, 1947, No. 32437. [Class 130] Cigarette extinguishing cells g are formed by grooves or channels on one or both surfaces of two co-operating conical members b, c. As shown the grooves are formed on the inner member c which is held by a screw e and has a pipe knocker k. Cigarette rests m are formed in the top of the member b.