baber/WOPTO huggingface dataset:
Patent GB-268486-A (GB)
Title: Improvements in reinforced concrete floors and roofs
IPC: E04B5/23
Filed: 1926-01-30
Abstract: 268,486. Herrmann, A. J. Jan. 30, 1926. Flooring and roofing blocks; special shapes of.-Concrete filler beams or blocks, Figs. 1, 6, and 12, for ribbed reinforced concrete floors and roofs consist of two complementary half beams of channel section with transverse partitions e which may be apertured to receive concrete and bars forming additional transverse ribs. The apertures at the ends of the span may be flared, as shown in Fig. 18, to accommodate the upturned ends of the reinforced bars. The lower faces of the beams may be ribbed to produce a coffered ceiling Fig. 12.
Patent GB-681421-A (GB)
Title: Improvements relating to concrete flooring
IPC: E04B5/26
Filed: 1948-01-30
Abstract: 681,421. Floors; beams; walls. NILSSON, A. B. Jan. 30, 1948 [March 18, 1947], No. 2801/48. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 9, 1948]. Class 20(iv) Concrete floors are formed by casting concrete 3 on a form composed of spaced reinforced inverted T beams 2 supported on portions of the building such as the walls, with concrete plates 1 supported by the flanges 8 of the beams and filling the spaces therebetween, the height of the plates being substantially equal to the height of the flanges of the beams, the co-operating edges 8, 7 of the flanges and plates being such that the under surfaces of the beams and plates lie in the same plane, and the webs 9 of the beams having a number of holes 5 adjacent the flanges through which reinforcing rods 6 are introduced before the concrete is cast. The flanges 8 of the beams are thinner at their edges than at their roots. The Specification as open to inspection under Sect. 91, comprises also walls with vertical slabs 10 joined by cross pieces 11 the bevelled edges 13 of which engage the bevels 12 of the slabs while shoulders 14 prevent inward movement of the slabs. The slabs being of any shape, e.g. curved for the casting of arched vaults &c. This subject matter does not appear in the Specification as accepted.
Patent GB-1057702-A (GB)
Title: Transistor memory circuit
IPC: H03K3/286
Filed: 1964-01-22
Abstract: 1,057,702. Transistor bi-stable circuits. ZAVODY PRUMYSLOVE AUTOMATISACE, NARODNI PODNIK. Jan. 22, 1964 [Jan. 25, 1963], No. 2871/64. Heading H3T. A cross-coupled transistor bi-stable circuit comprises a square loop core for remembering the state of the circuit when the supply is interrupted and a further transistor arranged to ensure that the circuit switches to the remembered state when the supply is restored. When the supply to the bi-stable circuit 1, 2 is interrupted a core 11 remains set in accordance with the state of the circuit. Upon restoring the supply a current pulse passes through a capacitor 15 to the base of transistor 1 to switch it on. If this was not the previous state the transistor current switches over core 11 inducing a voltage pulse in winding 14 to cut off transistor 19. At the end of the pulse transistor 19 conducts and the drop of voltage at its collector is communicated through capacitor 22 to the base of transistor 1 to reverse the circuit. A capacitor 21 in series with transistor 19 charges and blocks the transistor current during normal operation.
Patent GB-254217-A (GB)
Title: Improvements in and relating to life saving devices
IPC: A41D7/00
Filed: 1926-02-01
Abstract: 254,217. Meilland, A. Feb. 1,1926. Buoyant swimming and bathing dresses.-A bathing suit is provided about the waist with a pocket 2 having its internal pockets 6, 7 which accommodate alternative means for inflating a container 10. The pocket 6 contains a tube 12 through which the container is inflated by lung power, while the pocket 7 contains a receptacle 14 of compressed fluid. The receptacle 14 is controlled by a stirrup 32 which engages in a spring bail on the outer end of the receptacle when communication with the container 10 is shut off. When turned to the position shown in the figure, the communication-valve 51, Fig. 8, is opened by virtue of the longitudinal movement of an internal tube 46 occasioned by the cranked ends 36 of the stirrup extending inwardly from the pivot point and engaging therewith. The valve 51 moves with the tube until arrested by the abutment 50.
Patent GB-431918-A (GB)
Title: Improvements in or relating to hose couplings or hose connectors
IPC: F16L33/22
Filed: 1935-01-29
Abstract: 431,918. Hose couplings. CARPENTER, G., and ELECTRIC HOSE & RUBBER CO., Ltd., 198, Westminster Bridge Road, London. Jan. 29, 1935, No. 2905. [Class 99 (i)] A hose x is coupled to an end fitting &c. a by an externallyconed collar c which is contracted to compress the hose onto a spigot b of the end fitting by an external sleeve d which screws onto the said fitting and is internally coned at its outer end to engage with the coned surface of said contractible collar c. The collar is adapted to abut against a shoulder a<1> of the fitting, and it may be split as shown in Fig. 4; alternatively the outer end only is split at c<1>, Fig. 3, to form a contractible portion consisting of a plurality of deformable fingers c<2>. The spigot b is provided with a bulbous end b<1>.
Patent GB-366712-A (GB)
Title: Process for removing naphthalene from gases
IPC: C10K1/06
Filed: 1931-01-29
Abstract: 366,712. Gas washing process. VEREINIGTE STAHLWERKE AKT.- GES., 67, Breitestrasse, D³sseldorf, Germany. Jan. 29, 1931, No. 2914. Convention date, Feb. 19, 1930. [Class 55 (ii).] Naphthalene is washed out of gases at normal or slightly elevated (40‹ C.) temperature and pressure by means of a mist of atomized water, this operation being preceded when necessary by treatment of the gas with washing oils. The water is regenerated by passage through sand or quartz filters.
Patent GB-371483-A (GB)
Title: Improvements in and relating to non-return valves
IPC: F16K15/02
Filed: 1931-01-29
Abstract: 371,483. Spittoons. COWPER, F. M., Lindisfarne, The Downsway, Sutton, Surrey. Jan. 29, 1931, No. 2934. [Class 26.] Dental fountain spittoons having saliva ejectors and similar devices where a water supply is employed in surgical operations for irrigating and draining purposes are fitted with a non-return valve freely mounted in guiding means and having one or more registering annular grooves 6, 7 in the valve member and seat respectively. An element 2 connected by a gland nut 18 to the dental spittoon is screwed in an element 3 to form a valve chamber 1, which houses an annular cage 8 forming the guiding means and limiting by its inwardly projecting parts 9 the lift of the valve member 5. A tubular member 14 connected at 16 to the water supply screws into the lower end of the element 3 and retains, by an internal threaded portion 13, a strainer 11 having a knurled upper end 17. Liquidtight joints between the members 2, 3, 14 are effected by the use of lead washers 19, 20 fitting in recesses 21, 22, 23.
Patent GB-631338-A (GB)
Title: Improvements connected with multi-colour printing
IPC: B41F7/00
Filed: 1947-01-30
Abstract: 631,338. Printing-machines. MAZURIER, R. J. Jan. 30, 1947, No. 2934. Convention date, Dec. 17, 1945. [Class 100 (ii)] To secure accurate registration in a multicolour printing process, in which after the sheets are printed once in an offset press comprising a metal printing-surface fixed to the printing- cylinder, the cylinder is fitted with a second printing-plate to print a second colour on the once-printed sheets, and means are provided to stretch or deform the second printing-surface by an amount corresponding to the deformation or elongation of the sheet as it receives the first impression. Registration marks are made on a blank sheet and after this receives its first impression the amount of deformation is measured. The printing-surface with the second design which is a thin sheet of copper, zinc, or aluminium, is then clamped in a series of jaws 8, 15, Fig. 1, which are carried by screws 5 mounted in blocks 3 secured by belts 4 to metal platforms supported by legs 1, or mounted in an inclined support on a pedestal 1, Fig. 9. The screws 5 can be operated by hand wheels 6 or by a common drive to move the jaws 8, 15, so as to stretch the printing-plate to correspond with the deformation of the once-printed sheet. An adjustable index device 19, 20, Fig. 7, carried by a bar 18 clamped to the frame supporting the jaws 8, 15 enables the plate to be stretched to the desired amount. The plate may be supported between the jaws 8, 15 by a telescopic support, Fig. 6, not shown, carried by the jaws 8, and arranged so that its upper plane is substantially level with the upper surface of the jaws 8. The stretching of the printing-surface may be effected by rack-andpinion mechanism, or by ratchet levers.
Patent GB-510260-A (GB)
Title: Process for making aluminium alloy bearings
IPC: C22C21/00
Filed: 1938-01-31
Abstract: 510,260. Alloys; annealing; bearings. HALL, H. C. Jan. 31, 1938, No. 2960. [Classes 72 and 82 (i)] [Also in Group XXII] Unbacked bearing shells are made from certain of the aluminium alloys described in Specifications 470,248 and 472,248 by casting the alloy, deforming the cast shape into that required for the bearing shell, and thereafter applying a precipitation hardening treatment to the shell, for example by maintaining it at 170-190‹C. for 12 hours and allowing it to cool naturally. The alloy may be cast in the form of a preferably continuous plate or strip from which the half bearing shells are formed by pressing ; or it may be cast in the form of a ring which is subsequently enlarged to the required size. The preferred composition for the alloy is aluminium with 3.5-6.5 per cent. of tin, 1.8-2.5 per cent. of nickel, 0.7-1.3 per cent. of magnesium, 0.1-0.35 per cent. of silicon, and 0.1-0.5 per cent. of iron, with or without up to 0.8 per cent. of antimony, up to 0.7 per cent. of zinc, lead, cadmium, and bismuth, and up to 1.5 per cent. of copper.
Patent GB-734872-A (GB)
Title: Door handles
IPC: E05B3/06
Filed: 1953-02-03
Abstract: 734,872. Door latches. LEGGE & CO., Ltd., J., and LEGGE, F. V. Jan. 25, 1954 [Feb. 3, 1953], No. 2980/53. Class 44. Relates to a door handle assembly of the kind in which a lever handle 14 is turnably mounted in relation to a door plate or rose 10 either independently or with the handle spindle and in such a manner that the handle can be changed from one hand to the other, the handle being impelled towards either of its normal e.g. horizontal positions by a loading spring 22 which acts in the direction of its own length and in which a stop member positively located at the rear of the door plate or rose has stop means which co-operates with one or more abutments on the handle shank, or a member which turns with it, or a retaining washer secured to it, to limit the movement of the handle so as to determine its normal position, according to the hand. According to the invention in such a handle assembly, the stop member is a plate 12 which is adapted to be positively located at the rear of the door plate or rose in either of two positions (in either of which it is reversed end-to-end relative to the other), the plate being provided or formed with alternative stop means 21, 21* which co-operate with the abutment or abutments 18, 19 associated with the handle shank to determine the normal position of the handle and also with alternative abutments 26, 26* for the end of the loading spring which is the more remote from the handle shank, these alternative stop means and the alternative abutments for the spring being symmetrically disposed with respect to a transverse centre line of the plate and the arrangement being such that when changing the hand of the handle, the stop plate requires only to be turned end-to-end, without reversal back to front in order to bring the appropriate stop means thereon and the corresponding abutment for the spring into the correct positions to suit the reversed positions of the handle. As shown the abutments 21, 21* are sholders in a cut-out 13 of the stop plate which are engageable by the abutment 19. Further stop means in the form of notches 20, 20* are provided which are engageable by the abutment 18 to limit movement of the handle to prevent the spring 22 being overstrained or fouling the handle spindle. The abutments 18, 19 are formed on a washer 16 secured by a circlip 17 to the handle shank. The spring 22 is guided by a rod 23 having one end engaged alternatively in holes which form the anchorages 26, 26* and with an eye 24 at the other end which engages a lug 26 on the abutment 19. In a modification the further stop means are the ends of a projection on the plate 10. In this case the abutment 18 and notches 20, 20* are omitted since the abutment 19 engages either end of the projection or one of the shoulders 21, 21*. The handle shank can be integral with the handle or be separate. The stops 20, 20*, 21, 21* can be reinforced by bending up small tongues at right angles to the plate 12. Specification 701,467 is referred to.
Patent GB-1357984-A (GB)
Title: Impact driven tool
IPC: B25D17/02
Filed: 1972-01-21
Abstract: 1357984 Percussive drills INTERNATIONAL TOOL SALES Inc 21 Jan 1972 2997/72 Heading B4C A percussive drill comprises a cutting tip 24 provided with a recess 32 which frictionally receives one end 18 of the drill rod 12. The end 18 and the recess may each have a section taken on a plane including the drill rod axis which is semi-elliptical (as shown), parabolic or hyperbolic. The working end of the tip may be hardened to a Rockwell hardness of 56-62 while the other end of the tip is preferably of a Rockwell hardness of 20-25.
Patent GB-123309-A (GB)
Title: Improvements in or relating to Internal Combustion Engines and more especially to Pressure Reducing Devices particularly applicable to Motors Intended to Work at Different Altitudes.
Inventor: MERCIER HENRI
IPC: F02D9/00
Filed: 1919-02-07
Abstract: 123,309. Mercier, H. Feb. 7, 1918, [Convention date]. Regulating.-Relates to an automatic throttle valve between the carburettor and the engine, particularly for use with aircraft engines, but also applicable to certain motor-vehicle engines, to replace hand-throttling in engines so designed as to give maximum output with the throttle fully open at the normal flying altitude, and to work with a throttled charge at lower altitudes. The valve comprises a slotted piston 13 free to slide in sockets 10, 11 in a casing 1, so as to vary the port area 16 connecting the mixture supply pipe 4 from the carburettor with the passage 5 leading to the engine. One end 15 of the valve is subject to the constant pressure of air at normal atmospheric pressure in a closed vessel 19, and this vessel may have a non-conducting coating 21 and an electric heating circuit 22 controlled by a thermostat. The other end of the valve is loaded by a spring 17, which is adjusted so that, when in the position shown, the pressure of the spring is equal to the difference between the atmospheric pressures on the end 14 of the valve at sea-level and at the normal flying altitude. The motion of the valve, due to the suction of the engine, is damped by oil or glycerine in the reservoir 19. The apparatus may also be used with the spring loaded differently, and the pressure in the reservoir 19 may be greater or less than normal atmosphere pressure.
Patent GB-804832-A (GB)
Title: Improvements in or relating to machines for manufacturing fencing
IPC: B27J1/00
Filed: 1955-02-02
Abstract: In a chestnut fencing the wires are twisted in opposite directions on either side of a pale.
Patent GB-1529664-A (GB)
Title: Method and apparatus for cooling inner surface of metal pipe
IPC: C21D1/667
Filed: 1977-01-26
Abstract: 1529664 Spray-producers NIPPON KOKAN KK 26 Jan 1977 3128/77 Heading B2F [Also in Division C7] A metal pipe is quenched internally by relative motion between it and an annular cooling head 2 having peripheral nozzles 4 which discharge jets of liquid or mixed liquid-gaseous coolant inclined at an angle (d) of 30-70‹ to the radial plane of the head in the direction in which the pipe is moving, and at an angle (#) of .30-90‹ to the radii of the head, whereby the coolant flows along the tube bore in a helical path away from the hot region. The coolant leaves the nozzles at >5 m/sec, and is preferably either water or a water-air mixture.
Patent GB-1485589-A (GB)
Title: Reduction of iron in titanium ore
IPC: C22B34/12
Filed: 1975-01-24
Abstract: 1485589 Rutile TiO 2  BAYER AG 24 Jan 1975 [25 Jan 1974] 3144/75 Heading C1N A synthetic rutile is obtained from Ti and Fe containing ores, optionally preoxidized at temperatures in the range of 500-1200 C., by reducing the Fe<SP>III</SP> into Fe<SP>II</SP> with a gaseous reducing agent at 850-1100 C. and leaching the reduced ore to remove the iron values and calcining the residue, wherein the reducing gas contains H 2  and steam and optionally at least one of CO and CO 2  and a molar ratio of H 2 + CO :H 2 O + CO 2  of 0À36-1À8 is maintained during the reduction. The reducing gases may be hydrogen-water mixtures, partly burnt natural gas or partly burnt gaseous or liquid hydrocarbons. When the latter are used 55-80% of the quantity of oxygen required for complete combustion is used for the partial combustion. Steam may also be added during the partial combustion. The reducing agents may be diluted with inert gases. The reduction is preferably performed at 950-1100 C. with a H 2 :H 2 O molar ratio of 1À25-1À8 or a H 2 +CO: H 2 O+CO 2  ratio of 0À65 to 1À5. The reduced ore is suitably leached with a mineral acid, preferably 17-22% HCl in a 30-70% stoichiometric excess for 2-5 hours. The reduction and/or the leaching may be carried out in fluidized bed apparatus. The leach residue is preferably calcined at 750-1100 C.
Patent GB-624474-A (GB)
Title: Improvements in or relating to means for tensioning conveyor chains and the like
IPC: B65G23/44
Filed: 1947-02-03
Abstract: 624,474. Tensioning conveyer chains. KING, Ltd., G. W., and KING, D. M. Feb. 3, 1947, No. 3227. [Class 78 (i)] Chains of the type described in Specifications 417,134 and 438,975, [both in Group XXV], which comprise collapsable links, are tensioned by imparting a drive thereto, and subsequently applying a braking effect which in conjunction with the drive collapses the links and causes tensioning of the chain. The braking device comprises a movable elongated plate 10, and a skid plate 11 which is secured to a channelled member 20. The movable plate 10 is supported by pins 13 which are mounted in a channelled member 14, and is urged towards the fixed plate by means of coil springs 15. Small plates 16 provide a second bearing for the pins. Channelled members 14 and 20 are rigidly supported by a plurality of U-shaped members 21 which may be mounted on a joist (not shown) which serves as a track for chain supporting trolleys (not shown). The driving means 24 comprises an endless driving chain adapted to engage the conveyer chain as it approaches the braking device, a slot 25, Fig. 3, being made in the end of plate 11 to allow passage of the chain.
Patent GB-162408-A (GB)
Title: Improvements in wire straightening and cutting off machines
IPC: B21F1/02
Filed: 1920-02-03
Abstract: 162,408. Thompson, J. Feb. 3,1920. Straightening; shearing.-In a machine for straightening and cutting-off wire into measured lengths of the type in which the wire is fed continuously and the cutting apparatus travels for a period with the wire and cuts it off during its traverse, the wire completes an electric current to actuate mechanism to traverse the cutter carriage with the wire and cut off a length, whereupon the circuit is broken and the carriage returned. The wires B are pulled through the straighteners C by sets of spring-opened jaws B slidably mounted in carriers b secured to a pair of chains A which are traversed by worm gear a<3> from the shaft a<4>. The jaws are closed to grip the wire either by spring-retracted plungers b<3> engaging either stationary fences b<5> as shown, or the short arms of levers the lower ends of which run along stationary fences. The wires pass through movable and stationary cutters d<2>, d<1> mounted on a slide D which is traversed on guiderods d, electrically connected to a solenoid e<8>, by racks e<1> traversed by pinions e which are connected by clutches e<2>, e<3> to the sprocket wheels a. When the ends of the wires engage an adjustable stop E, secured to a bracket extending from the rear of the carriage and electrically connected to the solenoid, the solenoid is energized, and through the agency of a link e', toggles e<6> and forked levers e<5> closes the clutches against the action of springs e<9> and so causes the carriage to be traversed at the same speed as the wire. The carriage is provided with a trip lever d' which at the desired time engages an adjustable stationary abutment d<4> on the bed to operate the movable cutters to sever the wires. When the wires are severed they fall out of the way and the circuit is broken, the solenoid being thus de-energized. The clutches are thus released and the cutter carriage returned by weights d<5> passing over grooved pulleys d<7>.
Patent GB-489673-A (GB)
Title: Improvements in or relating to hand looms
IPC: D03D29/00
Filed: 1937-02-04
Abstract: 489,673. Hand looms. RABA, (nÚe PIERRE), A. H., and RABA, G. H. Feb. 4, 1937, Nos. 3265 and 3266. Convention dates, Feb. 5, 1936 and Jan. 16, 1937. [Classes 142 (i) and 142 (ii)] A continuous warp thread b, Fig. 1, which may comprise parts of different colour &c. joined by knots, is wound round the cylindrical end pieces d of a frame, the side members c of which are perforated at e to receive the parts d. The thread is inserted between the teeth of a comb k having slides l nesting in the members c. The shed is formed by means of U- shaped rigid metal or other members m suspended on " warp carrying rods " h on swivels i oscillatable on supports g fitted with pins for insertion in openings f in the members c. Members m of different lengths may be used. In a modification, the warp carrying rods are mounted on other rods attached to one of the end supports, these other rods forming springs or being furnished with springs. In another modification, the warp carrying rods slide independently on peipendicular rods furnished with springs. In the Specification as open to inspection under Sect. 91, a foldable extension, which may be adjustable, and is fitted to the frame, is described. A stationary extension is also referred to. A wire reed with soldered teeth secured to it and parts guided under rods is described and it is stated that the " loom" may bo supported at one end on the operator's knees and at the other end on foldable feet, or it may have U-shaped supports. The warp carrying rods may be operated by wires from one or more pedals 14, Fig. 6 (Cancelled), whilst the comb may be operated by a wire &c. from a pedal 18 and be acted upon by a coil or rubber spring 21. A lever or pulley and two cables may be used. This subject-matter does not appear in the Specification as accepted.
Patent GB-451260-A (GB)
Title: An improved method of subduing the lustre of silk and artificial silk and articles made from the same
IPC: D06M23/06
Filed: 1935-02-01
Abstract: Goods composed of silk or artificial silk, particularly stockings, are de-lustred by spraying with a matting liquid whilst the goods are mounted on shaping forms.  The goods are preferably moistened before the matting treatment, and may be subjected to rolling treatment by rollers after matting.  Suitable matting liquids are solutions of sodium sulphate or barium chloride. Suitable spraying apparatus may be fitted to existing stocking shaping machines.  Specification 451,261 is referred to.