baber/WOPTO huggingface dataset:
Patent GB-433476-A (GB)
Title: Improvements in, and relating to, the polishing, burnishing or stropping of safety razor blades
IPC: B24B3/48
Filed: 1934-02-27
Abstract: 433,476. Stropping &c. razor blades. CAM, V. R., 81, Bents Road, Sheffield. Feb. 27, 1934, No. 6358. Addition to 401,691. [Class 60] A machine for stropping, polishing, or burnishing razor blades comprises a frame 2 on which are supported, on guides 4 on beds 5, vertical housings 3 carrying brackets 6, 7 adjustable vertically on guides 8 by a screw 9 and a screwed sleeve 14 operated respectively by worm gearing 11 and 15 ; the housings are also adjustable horizontally on the guides 4. The brackets carry, in bearings 17, sleeves 18 rotatable in ball bearings and having coned inner ends to receive the coned ends of spindles 19 carrying stropping &c. discs 20 and driven through pulleys 21, 22 and belting from pulleys on shafting 25 on the frame 2. An endless band 31 passes over a driven pulley 32 and an adjustable pulley 33, and carries the blades past the discs 20, horizontal guides 38 on pillars 39 serving to retain the blades on the band during operation of the discs on the blades ; the blades are fed on to the band at 41 and removed on to a collecting-device 42. The bearings 17 are adjustable horizontally in the brackets and held by studs 43, and the spindles 19 are coupled to the coned sleeves 18 by bolts 44. The discs 20 may be of increasing diameter along the spindles, and the spindles are then set at an angle to one another. The machine may comprise one housing 3 only.
Patent GB-343755-A (GB)
Title: Improved drive for motor vehicles having two or more driven axle-pairs
IPC: B60K17/36
Filed: 1930-02-26
Abstract: 343,755. Motor vehicle driving-gear. DAIMLER-BENZ AKT.-GES., Unterturkheim, Stuttgart, Germany. Feb. 26, 1930, No. 6439. Convention date, April 30, 1929. [Class 79 (ii).] Comprises bevel driving-gear for two or more axles connected by jointed intermediate shafts in which a bevel wheel b on the propeller shaft a meshes with two bevel wheels c, d on the forward axle f, g, one of the bevel wheels driving the forward axle through differential gear while both bevel wheels mesh with a fourth bevel wheel h driving a rear axle s, characterized in that the said differential gear e is located in the axis of the forward axle and is disposed to one side of the propeller shaft. The bevel wheel c drives the differential gear e, and the bevel wheel d is loose on the half axle f. The bevel wheel h is fixed on a short shaft i driving the rear axle through universal joints n, m and a shaft m<1>. The shaft i is carried in bearings k, l, the bearing k being situated between the bevel wheels c, d. It is stated that the lateral disposition of the differential gears e, r permits the universal joints n, m to be placed farther apart and thus reduces the angular deflection of these joints during working.
Patent GB-1055713-A (GB)
Title: Improvements in or relating to photographic materials
IPC: G03C1/95
Filed: 1964-02-17
Abstract: 1,055,713. Photographic silver halide material. GEVAERT PHOTO-PROD. Feb. 17, 1964 [Feb. 20, 1963], No. 6504/64. Heading G2C. Photographic silver halide material comprises an outer water-permeable colloid layer containing particles of a copolymer of styrene and at least one α, #-ethylenically unsaturated mono-carboxylic acid, dicarboxylic acid, dicarboxylic acid half ester or dicarboxylic half amide, said copolymer being insoluble in neutral or acid aqueous gelatin solution and being soluble in alkaline medium. Monomers referred to are maleic, fumaric, itaconic and citraconic acids and their monoesters and amides, acrylic, methacrylic and crotonic acids. The colloid layer may be one which is applied as a protective layer over the silver halide emulsion layer, or it may be an antihalation backing layer or the silver halide emulsion layer itself.
Patent GB-1080162-A (GB)
Title: Improved stop means for mine cars and other vehicles
IPC: B61K7/00
Filed: 1963-02-19
Abstract: 1,080,162. Railway stops. SHAWTREW & SMITH Ltd. May 13, 1964 [Feb. 19, 1963], No. 6576/63. Heading B7L. Stop means for rail vehicles has a member 1 pivoted to a chain 3 passing around sprockets 4, 5, a rod 15 being pivoted at 16 to sprocket 4 and to the rod 13 of piston 9. The piston 9 has passages 11 for the flow of fluid and the cylinder 10 is connected to reservoir 12. The member 1 has rollers 24 and runs on platform 6 which may be retractable to withdraw member 1 from the path of vehicle axle 2. In operation, the axle 2 engages and moves member 1 and chain 3, the resulting movement of rod 15 and hence piston 9 progressively increases and consequently due to restricted fluid flow through piston the resistance to movement of member increases until the vehicle is brought to rest. At the extent of yielding movement, the member 1 swings down a ramp 26 clear of axle 2. A compression spring device 17 acted upon at one end by an abutment 22 on the chain, and pivotally anchored at its other end 21 returns the chain to its initial position after a vehicle has been arrested.
Patent GB-832944-A (GB)
Title: Improvements in or relating to an electrode for use in an alkaline electric cell or accumulator
IPC: H01M4/02
Filed: 1958-02-28
Abstract: 832,944. Batteries. YARDNEY INTERNATIONAL CORPORATION. Feb. 28, 1958 [March 6, 1957], No. 6593/58. Addition to 824,775. Class 53. A zinc electrode consists of a sheet of copper 1, carrying one or more layers of expanded zinc 8 which may be wound round the copper sheet and spot welded to it at 10, 11. The sheet 1 may be perforated and provided with a lug 6 slotted at 12 to enable a number of electrodes to be connected in parallel by a rod carrying washers between adjacent electrodes and a nut on a threaded end of the rod.
Patent GB-734046-A (GB)
Title: Improvements in or relating to hand knitting apparatus
Inventor: LUCHSINGER ERNST
IPC: D04B39/00
Filed: 1953-03-10
Abstract: 734,046. Knitting apparatus. FIBRA AKT.- GES. March 10, 1953, No. 6624/53. Class 74 (2). The pin bar 5 of a hand-operated knitting- apparatus is engaged at each end in a bracket having a recess 7 which prevents the bar turning under the influence of the pull of the yarn when drawn into loops by the hooks 3 of the apparatus. The bar is also locked in position by a pivoted latch 11 which engages over the end of the bar and is integral with an arm 9 and lug 10 which when the arm 9 is turned to release the latch 11 lifts the bar 5 from the bracket. The latch is normally retained in its unlocked position by a spring locking member 14 engaging. a recess in the arm 9 and in its locked position by a spring 15. The latch members at each end are connected by linkage so that operation of one simultaneously operates the other. In an alternative arrangement, a screw clamp 41, 43 at each end secures the bar in position and is provided with a cam 44 which engages a pivoted plate 49 to cause it to release and raise the bar. The screws of the clamp are similarly interconnected to ensure simultaneous operation.
Patent GB-921389-A (GB)
Title: Clamps for use with shuttering or formwork
Inventor: CADMAN KENNETH JOHN
IPC: E04G17/04
Filed: 1960-02-25
Abstract: 921,389. Clamp for shuttering for casting concrete. RAPID METAL DEVELOPMENTS Ltd. May 25, 1961 [Feb. 25, 1960], No. 6634/60. Class 20 (2). A clamp for shuttering panels comprises a U-shaped member 10 the limbs 11 of which terminate in flared notches 12 engaging the edges of two mating flanges 31 of shuttering panels and a U-shaped member 17 with hooks 20 or a single hook 35, Fig. 7, engaging registering slots 30 in the flanges. The member 16 has a tapped hole engaged by a screw 21 passing through a hole in the web of the member 10 and bearing on the outer face of this web by a pivoted cam 23 adapted to give a quick take-up of clearance, the clamp being finally tightened by the screw 21. A lateral curved extension 14 of the member 10 is adapted to clamp a waling 33 against the flanges 31. The hook 35, Fig. 7, has a tapped extension 36 engaging in a nut 37 bearing on the outer face of the web of the member 10.
Patent GB-1455122-A (GB)
Title: Paper production
IPC: D21F1/44
Filed: 1973-02-10
Abstract: 1455122 Rollers for paper-making machinery WATFORD ENG Ltd 6 Feb 1974 [10 Feb 1973] 6659/73 Heading F2U [Also in Division D2] A roller for paper-making machinery comprises interdigitable comb-like members 70 movable radially to adjust the diameter of the roller, the fingers of each comb-like member extending part way round the periphery. The roller may be mounted in a pulp vat and covered with a wire mesh which forms watermarks on the pulp picked up and drained by the roller. The members 70 of plastics material extend axially and are mounted for the radial movement on pins 80 which slide in radial bores in rings 48A-48D supported by spiders 34A-34D from a shaft 30. Radial movement of the members 70 is effected by circumferential movement of cams 86 which bear on cam followers 84 on the members and are adjustablymounted on rings 46A-46D, the circumferential movement of the rings being effected by a manually-operated worm 68 which turns a shaft 40 and gear segments 52A-52D for operating gear segments 56A-56D bolted to the rings. Fig. 5 shows three possible radial positions of the members 70; at A the ends of the fingers lie in a common plane at the maximum radius while at B and C the ends of the fingers overlap with those of adjacent members and the roller is not truly cylindrical. The individual adjustment of the cam sets is by eccentrics 96 which turn the corresponding gear segment 56A-56D when bolts 100 are loosened. The roller may be driven through gearing or by frictional contact of a couch roll which removes the layer of pulp at the upper point on the periphery of the roller.
Patent GB-818040-A (GB)
Title: Improvements in electroplating racks
IPC: C25D17/08
Filed: 1956-03-05
Abstract: 818,040. Electroplating racks. LUKENS STEEL CO. March 5, 1956 [May 24, 1955], No. 6773/56. Class 41. An electroplating rack comprises a pair of parallel side members 14 connected by bars 22 between which may be removably located a flange 36 on a foot 28, a supporting member such as a loop 16 fixed to the upper end of the rack by means of which the rack may be suspended from a horizontal member such as a beam 10, and a fixed block 44 having an adjustable member 64 secured thereto, as by means of a rod having opposed screw threads, said foot and adjustable block member having work-engaging surfaces 30, 68 for locating and making good electrical contact with a workpiece such as a plate 40, to be plated.
Patent GB-1529123-A (GB)
Title: Radiation sensitive material and its use
IPC: C08F8/00
Filed: 1977-02-17
Abstract: 1529123 Radiation - sensitive polymers HITACHI Ltd and NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP 17 Feb 1977 [18 Feb 1976] 06781/77 Heading C3P [Also in Division G2]  Radiation-sensitive polymers containing both a plurality of epoxy groups and a plurality of bromine atoms may be prepared by (1) brominating and epoxidizing, simultaneously or sequentially, a butadiene or isoprene polymer or copolymer; or (2) brominating a copolymer of butadiene or isoprene with a glycidyl ester, e.g. glycidyl acrylate or methacrylate; or (3) epoxidizing a copolymer of butadiene or isoprene with a bromine-containing monomer, e.g. vinylidene bromide. Epoxidation is suitably effected with peracetic acid, and bromination with free bromine, preferably produced in situ by reaction of NaBr or KBr with peracetic acid. Examples illustrate procedure (1), the starting polymer being 1,2- polybutadiene, 1,4-polybutadiene, 1,4-polyisoprene or styrene/butadiene copolymer.
Patent GB-1098443-A (GB)
Title: Powder metallurgy compositions
IPC: C22C32/00
Filed: 1965-02-17
Abstract: A body made by powder metallurgy comprises two mechanically inseparable components, the first being <TABS:1098443/C6-C7/1> with or without impurity amounts of S, C and O, the second being a refractory metal oxide having a free energy of formation (D F) at 1000 DEG C. greater than 98 Cals per gram atom of oxygen, a mean particle diameter (D) not greater than (0.5K+19) mm , where K is D F27 DEG c of the most stable oxide of any metal in the first component, D remaining in this range even after heating at 1205 DEG C. for two hours, the concentration of the second component being up to 5.6% by volume, 90% of the oxide particles having a diameter less than 3D and the body having a density of at least 99.5% of the theoretical.  The metal particles may have an oxide coating thereon to the extent of 0.06A to 0.25A% based on the total composition, where A is the surface area of the powder in sq. metres per gramme, the oxide of the coating being an oxide of at least one of the metals of the composition. The body may be made by precipitating the refractory metal oxide and a hydrous, oxygen containing compound of the, or each, metal required in the metallic component, reducing the precipitate with a gas below 10(2.14 + 0.01k) DEG C., the resultant powder being consolidated below 1000 DEG C. to at least 99.5% of theoretical density.
Patent GB-1179405-A (GB)
Title: Process for Producing a Concrete Article
Inventor: TEYCHENNE DAVID CLAYTON
IPC: B28B5/04
Filed: 1966-02-16
Abstract: 1,179,405. Moulding concrete panels. NATIONAL RESEARCH DEVELOPMENT CORP. 16 May, 1967 [16 Feb., 1966], No. 6874/66. Heading B5A. A concrete panel having a major surface area of greater than 20 sq. ft., e.g. a storey height party-wall unit, is formed in a metal mould 1, mounted on rollers for procession through a plurality of work stations, the base whereof is provided with water drain holes 5 and six larger holes 7<SP>1</SP> for the passage of ejection plungers and on to which is placed a plate 3, provided with smaller drain holes 6, a perforated metal sheet 4 and a sheet of porous filter paper. The mould is filled with concrete from a filling device (14) (Fig. 3, not shown), movable on rails and supplied by a bladed rotor agitated hopper. After levelling the upper surface of the concrete, by vibration or manually a further, preferably wetted, filter paper sheet and a metal sheet 9 are placed on the concrete. The mould is moved to a pressing station for compaction at 200-500 lb. per sq. inch, by a lower platen (16), which is grooved to facilitate water removal, which is raised by six hydraulic rams whereby an upper fixed platen, which may be provided with drain holes, enters the mould and a compression is exerted e.g. for 10 seconds. The mould is traversed to an ejector station where six ejector rams (20) pass through the base thereof to raise the bottom plate 3 whereby the concrete block is removed by an overhead railed vacuum lifter (21) to a stack (22) at a curing station. The press rams are supplied from a common multi-cylinder pump, which also supplies the ejector ram cylinders. The concrete block may be impressed with letters or patterns, by a perforated die on the top surface thereof replacing the sheet 9. Mosaics, or large pieces of aggregate may be placed in the mould bottom, to form a decorative block facing. Pipes or electrical conduits and steel reinforcement may be moulded into the panel which may be provided with joint forming rebates.
Patent GB-470110-A (GB)
Title: Shackle bush extractor for withdrawing rubber bushes from motor car springs and the like
IPC: B25B27/28
Filed: 1936-03-07
Abstract: 470,110. Bushextractors; assembling force fits. PANKHURST, V. H. HAYES-. March 7, 1936, No. 6890. [Class 61 (iii)] [Also in Group XXII] A device for extracting or inserting rubber bushes from the spring shackles of motor cars &c. consisting of inner and outer metal sleeves a, b separated by rubber p, comprises a bolt d, washer j, abutment tube h to bear against the wall of the housing c and cylindrical nut e with conical head f and shoulder g whereby the inner sleeve a is moved relatively to the outer sleeve b so that the latter is properly seated on the shoulder g, the extraction being effected by rotating the nut k. For inserting a new bush the parts are arranged as shown in Fig. 2, the recesses o in the washer j and n in the nut e accommodating the longer inner sleeve a.
Patent GB-593495-A (GB)
Title: Improvements in arc welding and in high-frequency ionisers therefor
IPC: B23K9/067
Filed: 1945-03-19
Abstract: 593,495. Supply systems for welding arcs. ARC MANUFACTURING CO., Ltd., and MOFFATT, R. G. March 19, 1945, No. 6914. [Class 38 (iv)] In an arc welding plant a high-frequency, high-voltage A.C. produced by an oscillator circuit is superimposed upon the welding current by a low-resistance choke coil or autotransformer 1 in series with the source 2 of welding current, any low-frequency, highvoltage A.C. appearing across the choke coil is short-circuited and the operator protected. Specification 13888/41, as open to inspection under Sect. 91, is referred to.
Patent GB-525914-A (GB)
Title: Improvements in metal structures for protective and storage or other purposes
IPC: E04H9/10
Filed: 1939-03-03
Abstract: 525,914. Panel buildings. WILMOT, H. F. March 3, 1939, No. 6939. [Class 20 (i)] An air-raid shelter, store chamber or summer house is of dome-shaped formation similar to, that of Specification 485,754 and comprises sector-shaped flangeless metal panels joined together at their edges which lie in substantially vertical planes. The panels 1 are of curved formation closing in towards each other at their upper ends where they are secured together by clamping plates 9, 1.0, and secured to the ground by pins 8 passing through the flanges of angle plates 5 secured across the joints at the lower portions. The edges of the panels are flush and cover strips 4 may be welded to one edge of each plate to overlap the joint. When cover plates are used the upper clamping plate abuts on these to provide ventilating passages 13 and the inner clamping plate has a recessed edge to provide through passages from the interior. When cover plates are not used, angle pieces are inserted between the outer clamping plate and the upper portions of the panels to provide the ventilating passages. An upper manhole ring 22 may be provided instead of clamping plates and the panels and a cover plate 9 secured to radial projections thereof, Fig. 10. One of the panels is cut to form a door opening which is adapted to be closed by an annular plate 15 secured to a cover plate 16, which is perforated at 18 to provide ventilation apertures.
Patent GB-957400-A (GB)
Title: Improvements in or relating to sealing devices
IPC: F16J9/20
Filed: 1963-02-21
Abstract: 957,400. Joint-making packing. UNION CARBIDE CORPORATION. Feb. 21, 1963 [Feb. 27, 1962], No. 6966/63. Heading F2B. An annular hollow metallic sealing ring 11 is of substantially rectangular cross-section and has port holes 31 therein to admit the pressure fluid being sealed to the interior 29 of the ring. The external faces 13, 15, 17 and 19 and bevelled edges 21, 23, 25 and 27 of the ring are preferably slightly convex and additional port holes 33 may be provided in the edge 27. As shown in Fig. 2, the ring is disposed in a recess 35 at the joint between two components 43 and 45 to be sealed.
Patent GB-557560-A (GB)
Title: Improvements in or relating to time-limiting devices for electric engine starters
IPC: F02N11/08
Filed: 1942-05-22
Abstract: 557,560. Starting prime-movers. BENDIX AVIATION CORPORATION. May 22, 1942, No. 7013. Convention date, May 31, 1941. [Class 38 (iv)] The period during which an electric motor may operate in starting a prime mover is determined by a thermal switch, in series with the heating winding 27 of which is a resistance 32 which is varied by a thermal element 34 so that heating increases with decrease in ambient temperature. A heating winding 35 on the thermal element and in parallel with the starter motor SM causes a variation in the resistance 32 with change in battery voltage so that the starting period is also independent of battery voltage. The thermal switch 20, 22 may be in the circuit of the starting switch control winding 15 and may have a back contact 23 which energizes an alarm device A; its heating winding circuit is also in parallel with the motor SM.
Patent GB-492035-A (GB)
Title: Improvements relating to sorting apparatus
IPC: B07C5/342
Filed: 1938-02-09
Abstract: 492,035. Photo-electric sorting apparatus. ELECTRIC SELECTORS, Ltd., and HORSFIELD, W. R. Feb. 9, 1938, No. 7017 /37. [Class 40 (iii)] Relates to photo-electric apparatus for scanning objects one at a time and sorting them in accordance with their albedo, colour, or transparency. According to the invention, the objects to be sorted are thrown one at a time across a free space and scanned by a photo-electric device while traversing that space, and the objects that are to be rejected are subjected to a jet of air which alters their trajectory. In the apparatus shown for sorting rice grains and other cereal grains, the grains are fed by the centrifugal apparatus described in Specification 492,037, [Group XXX], comprising a rotating disc, which throws off the grains in succession across a free space between a white background plate 12 and a mercury vapour lamp 14 in the form of a ring. The plate 12 is carried by a vertical rod 16 adjustably secured by a set-screw 18. The light reflected from the background plate and the grain is thrown on a photo-electric cell 28, an objective 20 being provided to focus the image of the grain on a slit 22, through which the light passes to the cell. The cell 28 is arranged in a casing 34 attached to another casing 44 containing an amplifier and mounted on the base plate of the apparatus. The slit 22 and the objective 20 are carried by a tube 26 adjustably secured to the casing 34 by a set-screw 36. The mercury vapour lamp 14 is in a casing 38 adjustably secured to the tube 26 by a set-screw 42. The bottom of the casing 38 is closed by a glass plate 54 and two half-plates 56, 58, one of which is slotted to form a passage 62 leading to a slot 64. A valve casing 74 is attached by tubes 72, 70 to the casing 38, and is fed with compressed air by a pipe 76. When a defective grain is scanned, the amplifier causes an electromagnet 82 to attract its armature 80 carrying a valve ball 78, which opens and allows a jet of air to issue at the slot 64. This slot is situated sufficiently away from the optical scanning axis to allow for the time lag of the apparatus, so that the defective grain is deflected downwards by this jet and falls in a hopper 88 by a trajectory 86, while the good grain follows a trajectory 82 and falls in a hopper 84. Grains accidentally deflected laterally miss a slit 92 in a baffle plate 90 and drop in a hopper 94, from which they are again supplied to the apparatus. The photo-electric device may be adapted to reject objects of wrong colour for example red or green objects from blue ones. The light may be thrown on the object from below as well as from above to cause ejection of unduly opaque objects.
Patent GB-297643-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28D9/00
Filed: 1928-03-07
Abstract: 297,643. Heizmann, J. March 7, 1928. Plate apparatus.-A columnar heat-exchanger comprises alternate heat-exchange elements 3 and separating rings 4. Each element consists of a flat box traversed by short tubes 11 and divided by partitions 12, 13. The elements are connected by external bends 5 and these are formed with branches so as to cause series or parallel flow or any combination of series-parallel flow through the elements or the portions of the elements formed by the partitions. Specifications 17978/01 and 22560/03 are referred to.
Patent GB-217311-A (GB)
Title: Improvements in or relating to turbines to be driven with steam, compressed air, hydraulic pressure, or exhaust from internal combustion engines
IPC: F01D1/02
Filed: 1923-03-13
Abstract: 217,311. Reid, J. March 13, 1923. Fluid bearings.-The rotor of a turbine is mounted on a shaft S journaled in a bracket U to the bearing of which fluid under pressure is admitted through passages V and drains away through a passage W. Pressure gauges Y are provided for each face of the bearing.