baber/WOPTO huggingface dataset:
Patent GB-673349-A (GB)
Title: Improvements relating to centrifugal governors
IPC: G05D13/08
Filed: 1950-11-14
Abstract: 673,349. Centrifugal governors. DESSERT, L., ABEL, M., and RUA, G. Nov. 14, 1950 [Dec. 1, 1949], No. 27815/50. Class 57 In a centrifugal governor, the rotor 4 has peripheral recesses for the reception of rollers 6 which under the action of centrifugal force act against a deformable bearing race or track. In the construction shown in Fig. 1, the track is in two parts 7, 8 pivoted at 11, 12 respectively and each part is connected by a rod 13 to the rod 14 which is connected by the link 21 to the control organ. A spring abutment 18 is fixed to the rod 14 and the loading spring 17 has a second abutment 19 slidable on the' rod 14 and adjusted by a crank arm 20. The rollers may be rubber-sheathed to ensure noiseless running and the spring 17 may be replaced by a counterweight.
Patent GB-693271-A (GB)
Title: Improvements relating to a device for the manufacture of round knurled wooden rods
IPC: B27C5/08
Filed: 1951-11-27
Abstract: 693,271. Turning. HEID, H. Nov. 27, 1951 [Oct. 15, 1951], No. 27841/51. Class 83 (iii). [Also in Group XXIII] Apparatus for producing wooden rods suitable for dowels comprises a carrier mounted on a hollow driving spindle to which is secured, on the side opposite the driving spindle, a hollow cylindrical cutter on the rotational axis of the carrier, and on the other side rotary knurling tools so that a wooden rod fed through the cutter is first turned to size and then knurled. A carrier a having three arms a<SP>1</SP> and a boss a<SP>2</SP> has the latter connected to the rotatable spindle b of a machine. A hollow cutter c is secured to the front portion of the disc while at the rear a number of knurling tools e are arranged around the axis of the carrier freely rotatable on pivots d. A wooden rod f, of square section, is introduced through a guide member B and is turned by the cutter c to diameter, the rod being subsequently knurled by the tools e. The latter may be arranged with their axes on the skew so that the knurling is of helical form or intersecting. The skew arrangement may also be used to feed the rod through the device.
Patent GB-1262010-A (GB)
Title: Analysis apparatus
IPC: H01S3/00
Filed: 1969-06-02
Abstract: 1,262,010. Spectroscopic analysis. COMPAGNIE GENERALE D'ELECTRICITE. June 2, 1969 [June 14, 1968], No. 27880/69. Heading G1A. In an arrangement for the quantitative analysis of at least one compound contained in a material 4, radiation from a laser 1 is divided by a beamsplitting device 8, the radiation in each path being subsequently focused by lenses 3, 9 on to the sample being investigated 4 and a reference sample 11, thereby producing at the surface of each sample a plasma which emits radiation characteristic of the sample material, a certain wavelength of which characteristic radiation is isolated by the two monochromators 6, 12 and allowed to fall on the corresponding photodetectors 7, 13, the output of these photo-detectors being compared by a differential amplifier 14. To perform an analysis monochromators 6 and 12 are set at the same wavelength and identical samples 4, 11 are used. The RC circuit is adjusted to balance the two amplifier inputs and hence display a zero output on the CRO 15. Sample 4 is then successively replaced by samples each containing a different known amount of the element to be determined, and in each case the amplifier output is noted. In this way a calibration curve is derived. An unknown sample is then placed at 4 to be irradiated, and the resulting amplifier output voltage is compared with the calibration graph and the corresponding concentration of the test element read off. This procedure may be repeated with the monochromators set for a different wavelength, in order to determine different elements.
Patent GB-395206-A (GB)
Title: Guard or casing for the mechanism controlling the discharge of material from one receptacle to another
IPC: B65G67/00
Filed: 1932-10-07
Abstract: 395,206. Machinery guards. SCHELLENTRAGER, E. W., 2931, Carlton Road, Shaker Heights, Ohio, U.S.A. Oct. 7, 1932, No. 27904. [Class 80 (iv).] In transferring material from a container 10 to a truck 15, the discharge is controlled by mechanism, e.g. a roller 11 in the container outlet, operated by an adjustable member, e.g. gearing 21 on the truck, and a guard or casing 26 is moved automatically to cover and uncover the operating gear when the latter is moved out of or into the working position. The discharge roller 11 is driven by a motor on the truck through gearing 20, 21 mounted in the casing 23 pivoted at 18. The casing is moved about its pivot by an air-cylinder 27 to bring the gear-wheel 21 into engagement with a gear-wheel 14 on the roller 11. The guard 26 for the gearing is mounted on the shaft 22 of the wheel 21, and is connected by a crank 40 and adjustable link 35 to a fixed anchorage 38 so that pivotal movement of the casing 23 about the shaft 18 moves the guard to expose the gear-wheel 21.
Patent GB-244247-A (GB)
Title: Improvements in electrical switches
IPC: H01H19/56
Filed: 1924-11-21
Abstract: 244,247. Woods, R. Nov. 21, 1924. Switches, without quick action; contacts.- Switches for controlling wireless circuits comprise a recessed insulating block 1, Fig. 1, carrying a number of spring-pressed contacts 4 which bear on the periphery of an insulating cylinder rotatable within the recess in the fixed block and carrying bridging members for inter-connecting the fixed contacts. The bridging members carried by the rotatable cylinder may comprise pairs of phosphor-bronze balls 13 pressed apart by springs 12. Fig, 2, or contact strips 21, Fig. 6, which are held by being dropped into saw-cuts in the block 7, the fixed contacts (Fig. 3) consisting of balls 4 held in metal tubes 2 against the action of the springs 3. For securing the switch to a panel 15 the block 1 bears a screwed bush 14 secured by a nut 16 in a single hole in the panel, the operating spindle 9 for the block 7 projecting through the bush 14 and carrying the operating knob 10 at its outer end. The annular movement of the block 7 is limited by a screw 18 in a gap 17 of the flange 8 as shown in Fig. 4. The Specification also describes the manner in which this switch may be employed as a series-parallel switch in the tuning circuits of wireless apparatus.
Patent GB-335052-A (GB)
Title: Improvements in or relating to fibrous product
IPC: D21J1/08
Filed: 1929-09-14
Abstract: 335,052. Munroe, T. B., and Lathrop, E. C. Sept. 14, 1929. Wood substitutes.-Hard, grainless boards &c. are made by subjecting cellulose fibres other than cotton, having about 50 per cent water content to a pressure of the order of 500 lbs. per sq. in., and simultaneously to a temperature of about 350‹ F., until they are bone dry. No resins &c. are present in the mass. The invention is particularly applicable to the treatment of bagasse, which is stored in bales and allowed to ferment to break down the cementitious matter holding the fibre bundles together. This fermentation is controlled by the provision of ventilation passages in and betwen the bales whereby the moisture content is evaporated by the heat generated, and by the application of a disinfectant as boric acid to the exterior surface of the stack. The bagasse is cooked in a digester, preferably at a steam pressure of 35-40 lbs. for two hours, and treated in a beater which separates the fibres without breaking them. The material is sheeted on a paper machine, made into boards &c., and pressed and heated as above. If necessary, 5-20 per cent of paper stock'is added to the fibres.
Patent GB-880570-A (GB)
Title: Improvements in or relating to systems for manufacturing magnetic sound record sheets for playing back on a magnetic sound playback apparatus
IPC: G11B5/74
Filed: 1958-09-01
Abstract: 880,570. Magnetic picture records. TOKYO DENKI KAGAKU KOGYO KABUSHIKI KAISHA, and HOSHINO, Y. Sept. 1, 1958 [Sept. 2, 1957; Sept. 12, 1957 (2); Nov. 4, 1957 (2)], No. 27979/58. Class 40 (2). To produce a plurality of copies of a magnetic sheet picture record, paper 1 is fed from a stock roll 2 past printing and drying means 4, 5, 6, which produce visual information on one side of the paper, past coating and drying means 7, 8, 9, which impart a broad stripe of magnetic ink to the other side of the paper, through an intermittent feed arrangement I to a magnetic printer D after which the strip is cut into separate sheets at C. A master record 24 is mounted to a plate 17, by means of which it is brought into close contact with the strip 1 and the magnetic properties of the two are such that an oscillatory magnetic field produced by the discharge of a capacitor in a winding 26 reproduces the magnetic pattern of the master sheet on the strip 1 without significant deterioration of the master sheet. While the copy is still clamped, registration holes are produced by punches 13 to enable the record to be located over co-operating pins in a reproducing machine. In a further embodiment (Fig. 7, not shown), reinforcements are punched out and secured to the records where the locating holes are punched subsequently. Specifications 794,788, 796,251 and 850,291 are referred to.
Patent GB-893117-A (GB)
Title: Improvements in and relating to a locking device
IPC: E05B27/00
Filed: 1958-09-02
Abstract: 893,117. Revolving barrel locks. BORNAND, R. Sept. 2, 1958 [Sept. 3, 1957], No. 28113/58. Class 44. In a revolving-barrel lock of the divided-pin tumbler type the tumblers 4, 8 are operated by a key 12 provided with recesses 15 into which short extensions 9 of the tumblers project when the key is fully inserted into the barrel 6; the lock comprises a housing 1 provided with four peripheral grooves 2, one for each of four tumblers and in each of the grooves is an annular spring 5 biasing the associated tumbler to the locked position. The key 12 is preferably cylindrical but could be of any suitable cross-sectional shape such as oval or semi-cylindrical; in the former case the key is provided with a tongue 13 which is received in a slot 11 in the barrel 6. In another embodiment, series of four tumblers extend along corresponding generating lines of the housing and of the barrel. The tumblers may, however, be arranged along a helix or in otherwise staggered dispositions.
Patent GB-924639-A (GB)
Title: Process for the preparation of polycarbonates
IPC: C08G64/24
Filed: 1961-08-02
Abstract: In the manufacture of polycarbonates by reacting phosgene with a di-(monohydroxyaryl) alkane in an aqueous alkaline medium containing an inert organic solvent for the polycarbonate resin formed, there is used as a catalyst a quarternary phosphonium compound, e.g. a quarternary phosphonium hydroxide, halide, carbonate or bicarbonate. The groups attached to the phosphorus atom may be alkyl, aryl, alkaryl, aralkyl, alkenyl or alkynyl groups and these groups may contain halo- or nitro-substituents. The reaction mixture may also contain (a) a chain-stopper, e.g. phenol, tertiary butyl phenol, chlorophenol, nonyl alcohol or butyl alcohol or (b) an antioxidant or an additive to prevent decomposition of phosgene or to react preferentially with phosgene decomposition products, e.g. sodium dithionite, potassium bisulphite or carbon monoxide.  Examples describe the manufacture of bis-phenol A polycarbonate.
Patent GB-280357-A (GB)
Title: An improved ruler
IPC: B43L7/00
Filed: 1926-11-10
Abstract: 280,357. Roberts, W. Nov. 10, 1926. Rulers. - A ruler a of hollow semi-circular crosssection is provided with an attached elastic band b to accommodate a finger of the user's hand.
Patent GB-441226-A (GB)
Title: Improvements in score boards, for use particularly in displaying cricket scores
IPC: A63B71/06
Filed: 1934-10-03
Abstract: 441,226. Scoring-apparatus for games. TAIGEL, S. J., 44, Cressingham Road, Lewisham, London. Oct. 3, 1934, No. 28292. [Class 132 (ii)] Scoring-apparatus, particularly for cricket, comprises a collapsable frame 10, endless scoring bands 11 passing round rods 18 on the frame 10 and a flexible front 12 with openings 13 to expose the appropriate score indications. The frame consists of two horizontal bars 14 hinged together at 16 and side legs 15 which are held apart, in the display position, by stays 17. Six rods 18 which are prevented from rotation, slide at their ends in dovetail grooves in the front legs 15 and are held in their lowered positions by tapes 19 anchored at the tops at 20 and, after passing round the rods, fastened to cleats 23. Three rods 18 are similarly supported by the rear legs 15. Each endless scoring band 11 passes round two front rods 18 and a rear rod 18 so as to be taut when the frame is set up as shown. A flexible front 12 is permanently attached at the top edge to a cross-bar 14 and is fastened at the bottom to cleats 23. The four legs 15 are hinged at 25, so that when the tapes 19 are undone from cleats 23 and rods 18 are slid upwards towards the bars 14, the legs 15 may be folded with their lower parts parallel to the bars 14. The collapsed frame may then be wrapped in the fiexible front 12. In a modified form of leg, Fig. 6, each leg is of T-section and the rod has a corresponding fitting 33 to slide up and down the leg. In a modified frame, Fig. 7, the rods 41 bearing the score bands are permanently attached at their ends to rigid rear frame sections 36, 37, 38 and front sections 44, 45, 46 (the flexible front 12 of Fig. 1 being omitted) which are connected by hinges 39, 40 and are held in the display position by cross-members 42 and 43.
Patent GB-804058-A (GB)
Title: A process for improving the transparency of polyolefines
IPC: C08K5/521
Filed: 1956-09-17
Abstract: Polyolefines of improved transparency prepared by the low-pressure process using Ziegler-type catalysts, are obtained by adding from 0.01 to 5 per cent by weight of the polyolefines, of a compound of formula: <FORM:0804058/IV (a)/1> in which POn represents a phosphorus oxyacid radical, and n = 3 or 4, R1 an alkyl, cycloalkyl aryl or aralkyl radical, R2 an alkyl, cycloalkyl, aryl or aralkyl radical or hydrogen or alkali metal or ammonium, and R3 an alkyl, cycloalkyl, aryl or aralkyl radical or alkali metal or ammonium.  The compound may be added to an aqueous suspension of the polyolefine. Trimethyl, triethyl, tripropyl, trihexyl, trioctyl, trinonyl, tridodecyl, tricyclohexyl, triphenyl, tricresyl esters of phosphorous and phosphoric acids, and disodium lauryl phosphate are mentioned.  In examples, polyethylene of molecular weight 60,000, obtained by polymerization of ethylene in isopropyl cyclohexane with diethyl aluminium monochloride and titanium tetrachloride at 50 DEG  C. and 1.5 atmospheres, and separated from a suspension of sodium isopropylate in isopropanol, washed with methanol and then water, is suspended in water to which (1) trioctyl phosphite and (2) disodium lauryl phosphate is added. The mixtures are stirred at 20 DEG  C. and 100 DEG  C. respectively, separated and dried and the products when injection moulded yield structures of increased transparency.
Patent GB-683176-A (GB)
Title: Improvements relating to protective spark gaps
IPC: H01T1/14
Filed: 1950-11-20
Abstract: 683,176. Protective arrangements. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Nov. 20, 1950 [March 14, 1950], No. 28348/50. Drawings to Specification. Class 38 (iv). To improve the ignition characteristic of a lightning arrester or voltage limiter of the spark-gap type, a radio-active isotope is arranged in the vicinity of the gap to provide a continuous supply of electrons to the discharge path. The isotope may be incorporated in the material of an electrode of the gap, or in insulating material associated with the electrodes. Alternatively, an electrode, or associated insulating material, may be coated with the isotope.
Patent GB-859789-A (GB)
Title: Improvements relating to hinged stays, particularly the stays of perambulator hoods
Inventor: BRETTELL GEOFFREY PARKES
IPC: B62B9/14
Filed: 1958-09-04
Abstract: 859,789. Stays; hinges and pivots. JARVIS BROS. (BIRMINGHAM) Ltd. Sept. 1, 1959 [Sept. 4, 1958; Oct. 27, 1958], Nos. 28386/58 and 34263/58. Classes 65(1) and 65(2). A stay, particularly for perambulator hoods, comprising two members 19, 20 having forked opposed ends hinged together by a pin 27, is provided with a guard member 30 surrounding the pin and disposed between the forks of the stay members, the guard extending radially outwards a sufficient distance to keep the fingers of an operator clear of the adjacent ends of the stay members. The guard projects through slots 25, 26 in the opposed stop shoulders 23, 24 and consists of a circular, square, or other shaped plate which is located centrally on the pin 27 by washers 38, 39 and may have a notched arm 31 extending into one of the stay members and engaged by a pawl 37 pivoted relative to the other member. The pawl is carried by an arm 35 integral with the washer 38, and retains the stay in different open positions.
Patent GB-1222764-A (GB)
Title: Brazing slurry and method of using same
Inventor: BURNE FREDERICK ARLINGTON
IPC: B23K35/36
Filed: 1969-06-05
Abstract: 1,222,764. Brazing. OLIN CORP. 5 June, 1969 [5 July, 1968], No. 28462/69. Heading B3R. A brazing slurry comprises a brazing metal or metal alloy powder having a melting point above 1000 F. and a particle size of 80 mesh or smaller in admixture with a hydroxy-containing polyoxyalkylene organic compound in an amount from 3 to 10% of the weight of the brazing powder and having a boiling point between 500 and 1000F. and a molecular weight of at least 200. The slurry may be used to braze sheet, plate, strip, angle tube or bar or powder or shot, the brazing alloy may be copper- 5 to 15% phosphorus, copper base alloy containing tin and manganese, pure copper and nickel base alloy, and the organic compound may be polypropylene diols, polypropylene thiols, nonyl phenol-oxyethylene adducts or polyethoxylated higher alcohols. A brazing flux and a volatile solvent, e.g. acetone or methyl ethyl ketone may be added to the slurry. In one example different shot materials viz. commercial purity copper and stainless steel containing 19% chromium, 10% nickel were brazed using copper-8% phosphorus alloy and nickel base alloy containing 0À36% carbon; 4À5% silicon; 0À2% iron; 2À9% boron balance nickel respectively. The shot was charged into a tumbler with polypropylene diol (molecular weight 1000) and the mixture was blended to wet the shot with the polypropylene diol. The brazing alloy powder was then added gradually and the mass was placed in a fixture and heated in a furnace in excess of 1000 F. to melt the brazing alloy and volatilize the polypropylene diol and produce a bonded porous mass permitting gas flow therethrough. In another example the brazing alloy powders as in the previous example were mixed with the same polypropylene diol to provide pastes to which acetone solvent was added just prior to use. This involved applying the slurry to, e.g. copper tubes in a copper header and heating the assembly to over 1000F. in a furnace to effect brazing.
Patent GB-1073942-A (GB)
Title: Improvements in or relating to carpet sweepers
Inventor: HOULTON GEORGE ANTHONY ASHLEY
IPC: A47L11/33
Filed: 1964-07-10
Abstract: 1,073,942. Carpet sweepers. SHORT BROS. & HARLAND Ltd. Oct. 11, 1965 [July 10, 1964], No. 28500/64. Heading A4F. A carpet sweeper having a casing 10 and a dust receptacle 15 is provided with three ground-engageable wheels, two of which (12) are mounted by manually adjustable spring suspensions (Fig. 3, not shown) on a common axle 16 and the third of which (11) is attached to the casing 10 by a spring suspension (Fig. 2, not shown) and is arranged to drive through gearing 20 two rotatable brushes 13 so mounted on opposite sides of the third wheel 11 and extending to opposite side walls of the casing 10 that the cleaning of carpets &c. immediately adjacent to walls is facilitated. Moulded gears forming the gearing 20 are mounted adjacent to the wheel 11 on spindles 21 and 22 attached to a spring suspension comprising a bracket 19 suspended by a spring 18 from the casing 10. Dust deflectors 24 are arranged over the brushes 13 to direct swept up dirt to the dust receptacle 15 which may be subsequently emptied by pivoting it about the axle 16 or, in an alternative arrangement, by opening the casing which comprises two portions hinged together.
Patent GB-1237243-A (GB)
Title: Trimethyladipic acid ester lubricants
IPC: C10M169/00
Filed: 1968-06-14
Abstract: 1,237,243. Trimethyladipic acid diesters. SCHOLVEN-CHEMIE A.G. 14 June, 1968 [15 June, 1967], No. 28511/68. Heading C2C. [Also in Division C5] 2,2,4- or 2,4,4-Trimethyladipic acid diesters wherein the monoaliphatic alcohol component comprises exclusively homologue mixtures in the range of a C number of C4-C14. Mixed esters may be produced by first reacting 2,2,4- (2,4,4-)trimethyladipic acid with an amount of alcohol calculated in relation to the half-ester, and then completing the esterification to a mixed ester by adding the remainder of the alcohol mixture. The crude ester may be purified by treatment with an amount of magnesium oxide adequate for its acid number and equimolar amounts of water, referred to the magnesium oxide at room temperature or at 20‹ to 100‹ C. until complete neutralization.
Patent GB-603689-A (GB)
Title: Improvements in or relating to striker plates for door locks
IPC: E05B63/24
Filed: 1945-10-29
Abstract: 603,689. Striker plates. PRESSED STEEL CO., Ltd., and MATON, W. C. Oct. 29, 1945, No. 28519. [Class 44] A striker plate for door locks comprises separately formed main and safety catches each of which is mounted for independent resilient movement when engaged by a lock belt. As shown a safety catch 16 is housed within the main catch 15 so that independent resilient movement of the catches is controlled by means common to both. Catch 15 is pivoted on the shorter limb of an L-shaped plate 14 secured to the bottom of U-shaped plate 11 and the catch 16 is thrust outwards by springs 24. Strap 25 secured at 19 to main catch 15 is bent back behind plate 11 and carries a rubber buffer 26 bearing against plate 11 to reduce noise. The helical springs 24 may be retained in position by pins secure in main plates 14 or 11, the ledges 21 having apertures to allow passage of the pins therethrough, or vice versa. The helical springs may be replaced by a lapped leaf-spring and the end of the longer limb of the plate 14 may support a rubber buffer against which catch 15 will bear when in the retracted position. The rubber buffer may be in constant contact with the main catch 15 or by being provided with two limbs it may be also in constant contact with the safety catch. In a further modification the main catch 15 is bonded to a rubber block and the block is in turn bonded to plate 14 this latter having an upturned end as a retaining lip and the safety catch is also bonded to the rubber block. According to the Provisional Specification the spring actuating the safety catch member may consist of a strip of spring steel secured on the pins projecting from the main catch member by coiled springs surrounding the pins.
Patent GB-500443-A (GB)
Title: Improvements relating to slates, blackboards, and other repeatedly useable writing boards and tablets
IPC: B43L1/10
Filed: 1937-10-20
Abstract: 500,443. Slates, blackboards, &c. LANG, P. R. Oct. 20, 1937, No. 28592. [Class 146 (ii)] A slate, blackboard, or the like of the kind comprising a sheet of glass, ground on one side and coated with a dark coloured substance on the other side is made by roughening the front surface by a well-known acid process, and spraying the rear surface either wholly or partly with a dark pigment. Where the slate &c. is to be provided with columns, squares, &c., the rear surface of the glass is masked, before spraying, by a silk stencil, and the uncoated parts are then either sprayed with a white or light coloured pigment or covered by strips of white paper. The sheet of glass is then enclosed in a frame of wood &c., preferably with a backing of wood, cork composition, or metal.