baber/WOPTO huggingface dataset:
Patent GB-123655-A (GB)
Title: Improvements in or relating to Centrifugal Pumps.
Inventor: MILLINGTON WILLIAM ERNEST WYAT
IPC: F01D21/04
Filed: 1918-05-11
Abstract: 123,655. Millington, W. E. W. May 11, 1918. Balancing end-thrust; indicating axial position of impellers.-A member fixed to the impeller shaft co-operates with a stationary member to indicate the axial position of the impeller shaft and consequently of the impellers and balancing disks. Fig. 3 shows means for closing an electric alarm circuit k comprising a lever j controlled by a flange on the shaft. The position may also be indicated by the distance of a disk or flange f, carried by the sleeve a on which impellers are mounted, from the casing e of a bearing. A graduated scale may be attached to the bearing to measure the gap i.
Patent GB-451294-A (GB)
Title: Improvements relating to door fastenings
IPC: E05C1/16
Filed: 1935-03-15
Abstract: 451,294. Spring catches; sliding bolts. SHOWELL & SONS, Ltd., E., Stirchley Brass-foundry, and PEARCE, A. J., 15, Avebury Road, both in Stirchley, Birmingham. March 15, 1935, No. 8031. [Class 44] The head of a sliding bolt sliding in a tubular mortise casing and operated by a handle 12 and pinion 11 engaging a rack 10b formed on a recessed portion of the body of the bolt is formed as a spring-pressed ball or plunger which projects sufficiently far, when the bolt is in retracted position, to act as a yielding catch. When shot, the bolt head projects far enough into the keeper to act as an ordinary sliding bolt. As shown, a plunger-like head 16 is slidably retained in a recess 10c in the bolt, which also houses the compression spring 17, by spinning the end of the bolt body over a collar 16<a> on the plunger. In a modification the plunger is recessed to house the spring. Rotation of the bolt is prevented by a projection 6<c> stamped up from the casing 6 and engaging a groove in the bolt body. Too free movement of the bolt is prevented by friction of an inwardly bent spring tongue 6b stamped out of the casing.
Patent GB-754005-A (GB)
Title: Improvements relating to safety gears for lifts, elevators, and hoists
IPC: B66B5/20
Filed: 1954-03-19
Abstract: 754,005. Catch gear for lifts. WADSWORTH & SONS, Ltd., W., and RYDER, F. E. March 16, 1955 [March 19, 1954], No. 8048/54. Class 78 (3). In catch gear of the kind in which toothed cams 4, 5 secured to shafts 2, 3 are rotated into engagement with guides 6 when an auxiliary rope 7 is tensioned, the shafts are acted upon by an over centre mechanism. Each shaft is provided with a crank 10 pivoted to a rod 11 which is slidable through a plate 12 against the action of a spring 13, the arrangement being such that the cams are normally urged to the " off " position but, after they have been applied to the guides, they are urged into the " on " position until the mechanism is reset. A rod 17, which is vertically slidable through a hole in the cage floor 1, is provided with a projection 16 which is engageable with a projection 15 on the shaft 3 to reset the mechanism. The two shafts are connected by a chain 8. The rope 7 passed around a weighted pulley 19 which is prevented from moving upwardly, and which is connected to the cam 4 by a cable 20 which, should the rope 7 run slack, is acted upon by the weighted pulley 19 and so applies the cams to the rail. In a modification (Fig. 2, not shown), the weighted pulley is dispensed with,
Patent GB-1011445-A (GB)
Title: A moulding machine
IPC: B22C15/30
Filed: 1964-02-27
Abstract: 1,011,445. Moulding-machines. R. KUENKEL. Feb. 27, 1964 [Feb. 28, 1963], No. 8107/64. Heading B3F. A moulding machine, e.g. a jar-ram machine, comprises three stations in series, the two outer stations I, II being moulding stations and alternately operable, and the middle station 14 having means for fitting or removing mould box halves from a pattern and means for delivering a metered quantity of sand to a box half. A carrier 9 is reciprocable between the stations and carries the patterns 20, 21, the arrangement being such that during movement of the carrier in one direction a mould box half with sand compacted about the pattern therein is moved from one of the outer stations into the inner station for stripping, whilst the other core and mould box half having been assembled at the inner station and supplied with sand, are moved from the inner station to the other outer station. The sand supply device 10 at the inner station 14 may supply only facing sand, the remainder of the sand being supplied from conveyers 8, 9 during the passage of the mould box from the inner station to an outer station.
Patent GB-1515485-A (GB)
Title: Separator device with replaceable container
IPC: A61C19/00
Filed: 1977-02-25
Abstract: 1515485 Separator with replaceable solids collector FILTRATOR AB 25 Feb 1977 [27 Feb 1976] 08132/77 Headings BID BIT and B2P Apparatus for separating solid particles from a mixture of a fluid, e.g. liquid and/or gas, the particles comprises a cylindrical separation chamber 1 which in its upper portion, is provided with an inlet opening 3 for feeding the mixture tangentially to the separation chamber and a suction opening 2 for connecting a vacuum source to the chamber and, in its lower portion, includes a drainage opening 8 and a replaceable collecting vessel 6, the chamber accommodating between the openings 3 and 8 a funnel-shaped member 5 leading into an upper inlet of the vessel 6 an outlet opening of which is in fluid tight connection with the drainage opening 8 of the chamber so that fluid may pass through the drainage opening whilst the solid particles are retained in the collecting vessel. A helical guide for the feed mixture is provided at 4. The collecting vessel 6 is mounted on a bottom plate 12 which can be moved vertically on guides 13 and locked by a pivotable rod 14 in its upper position. In this position, a rubber membrane 16 which covers the outlet opening of the vessel 6 is punctured by a wedge-shaped lip of a sleeve 15 and seals around the sleeve to provide the fluidtight connection between the outlet opening and the drainage opening 8. The apparatus may be used for the separation of air, cooling liquid, saliva and solid particles, e.g. amalgam, removed by drilling during dental treatment. The collecting vessel 6 may contain mineral oil which in operation lies above the liquid mixture in the vessel and constitutes a smell trap.
Patent GB-1041731-A (GB)
Title: Improvements in or relating to electromagnetic relay arrangements
IPC: H02H3/347
Filed: 1963-02-28
Abstract: 1,041,731. Semi-conductor relay-operating and detector circuits. LABORATOIRE D'ELECTRONIQUE ET D'AUTOMATIQUE DAUPHINOIS L.E.A.D. Feb. 28, 1963 [Feb. 28, 1962], No. 8149/63. Headings H3Q and H3T. [Also in Divisions G4 and H2] In a circuit for operating an electromagnetic relay, the secondary voltage of an input transformer is rectified and used to charge a capacitor. When the voltage across the capacitor reaches a predetermined value, a four-layer semi-conductor device becomes triggered, and discharges the capacitor through an electromagnetic relay. Fig. 3 shows a circuit responsive to signals at 500 c/s. carried over power supply mains. Transformer 43 is tuned to the signalling frequency, its output being rectified at 44 and charges capacitor 45. Four-layer diode 46 is repetitively triggered at a frequency dependent on the amplitude of incoming signals. Amplitude modulation of the signal is thus transformed into frequency modulation, a further tuned transformer 47 being provided so that relay 49 is only energized when the device 46 is triggered at a predetermined rate corresponding to the input signal lying within a predetermined amplitude range. The fourlayer diode 46 may alternatively feed a plurality of vibrating relays tuned to different frequencies so that each relay is sensitive to a predetermined amplitude range of input signals. In Fig. 1 (not shown) a three-electrode, four-layer device is employed, the gate electrode being connected to a potential divider across the anode/cathode circuit. Fig. 4 (not shown) relates to a protection arrangement in which a four-layer diode and a Zener diode are responsive to excess current or voltage in a power system.
Patent GB-678735-A (GB)
Title: Improvements in heat non-conducting coverings for hot water containers
IPC: B65D81/38
Filed: 1950-03-31
Abstract: 678,735. Heat insulation. KEANE, E. March 27, 1951 [March 31, 1950], No. 8155/50. Class 64(ii) . A heat insulation covering, e.g. for a hot water cylinder or cistern, consists of a number of separate sections each with a V- shaped end 1 and a parallel-sided part 2, the bottoms being formed with a loop 5 so that a wire spring 6, wire or cord, threaded through all the loops, may have its two ends connected together, as by hook and eye, to hold the sections in contact with the insulated body. The sections 1, 2 enclose insulating material and one sewing 7 may support this material and secure the looped-up edge of the section. Hooks 3 are attached to the V-shaped ends 1 so that when the ends are drawn together over the top of the cylinder they may be hooked on to a wire spring 4 around the top.
Patent GB-884687-A (GB)
Title: Improvements in or relating to siloxanes
IPC: C08G77/14
Filed: 1960-03-08
Abstract: The siloxane polymers and elastomer-forming compositions of the present invention are substantially identical with those of the parent Specification and differ only in that the polysiloxanes must contain at least one Si-bonded cyanoalkyl radical.  The compounds are made by reacting acyloxy silanes with hydroxy-terminated siloxanes: <FORM:0884687/IV (a)/1> reaction occurring spontaneously upon mixing the two.  In a typical example (1) 100 pts. (by wt.) of a hydroxy-terminated g -cyanopropylmethylsiloxane of 500,000 cs. viscosity at 25 DEG  C., were mixed with 5 pts. of methyltriacetoxysilane and allowed to stand at room temperature in the absence of moisture to yield <FORM:0884687/IV (a)/2> in which n has an average value greater than 100.  When exposed to atmospheric moisture, the compound cured to an elastomer in a few hours.  The compounds may be mixed with fillers before curing.
Patent GB-273006-A (GB)
Title: Improvements in or connected with guard apparatus for power presses and the like
IPC: F16P3/04
Filed: 1926-03-26
Abstract: 273,006. Jones, W. H. March 26, 1926. Guards, controlling.-A pivoted guard 6 for a power press &c. is operated from the slide 3 or other reciprocating part by a link 10 connected to a cranked arm 11 and, by a slot 13, to a pin 12 on the connecting-rod 5, so that the guard is displaced, as shown, on the upstroke, and returns by gravity or a spring 9 to the vertical guarding-position on the downstroke. The lost-motion connection 12, 13 allows the stroke of the slide 3 to exceed that of the link 10, and thus to be varied according to the class of work. Downward movement of the guard is limited by a stop 14. A pin may be inserted in a hole 15 to hold the guard out of action.
Patent GB-637017-A (GB)
Title: Safety razor blades and other fine edged instruments and the manufacture thereof
IPC: B26B21/60
Filed: 1947-03-26
Abstract: A fine edged instrument such as a surgeon's scalpel has at least one sharpened edge of carbon or stainless cutting-steel which, after grinding and honing or grinding and honing and stropping, is provided with an adherent coating of aluminium subsequently oxidized, e.g., by anodizing; the coating may be applied to the body as well as the edge.  The blade is cleaned by chemical de-greasing-agents or in an electrolytic bath followed by ionic cleaning by H.T. discharge, drying is effected in a dessicator, and coating by the evaporation. film-producing method.  A strip or a stack of blades supported on a molybdenum strip is conveyed into a preliminary, low-vacuum chamber then into a high vacuum evaporating chamber, where the blades are exposed to a glow discharge, the molybdenum strip being heated to heat the blades, and finally into at least one low-vacuum chamber. Specification 565,640, [Group XIV], is referred to.
Patent GB-986517-A (GB)
Title: Carrying bag construction
IPC: A45C13/10
Filed: 1962-03-02
Abstract: 986,517. Suitcases. ATLANTIC PRODUCTS CORPORATION. March 2, 1962 [March 7, 1961], No. 8267/62. Heading A4G. A rigid bag for carrying a bowling ball comprises two hinged bag halves 20, 21 of rigid plastics or fibre material, which are closed by a sliding clasp fastener having fabric portions 40, 41 attached to the edges of the bag halves. These edges are reinforced by steel rods 38, 39 housed within fabric covers 32, 33. The fabric covers are stitched to the edges of the bag halves 20, 21, to the sliding clasp fastener portions 40, 41 and to fibre backing strips 36, 37. The bag is fitted with cups 22-25 to receive the bowling ball. The covers 32, 33 may be replaced by extruded housings 45, Fig. 8, with lips 48 to cover the ends of the bag halves. Extruded housings may have extended lips which are stitched to the bag halves and extensions to house the strips and sliding clasp fastener portions (Figs. 9, 10, 11, not shown).
Patent GB-822455-A (GB)
Title: Improvements in transmissions for vehicles
IPC: F16H61/662
Filed: 1958-03-14
Abstract: 822,455. Cycle driving gear; mounting engines. ATELIERS DE LA MOTOBECANE. March 14, 1958 [March 14, 1957], No. 8303/58. Classes 79(2) and 79(3) In a vehicle having an automatic change speed gear of the smgle expansible pulley type with a single axially movable flange, the driving motor 7, Fig. 2, for the pulley 12 is mounted swingably on pivots 2 which are oblique to the centre line of the crankshaft so that as the pulley 12 expands or contracts the motor 7 moves laterally, as it swings, to maintain the belt 13 in alignment with the driven pulley 14. The motor 7 may be mounted on pairs of links 3 and is yieldingly urged by a tension spring 25 to maintain the belt tension. In a modification the links are replaced by a metalrubber link 4, Fig. 6, or by leaf springs. In a further embodiment the motor 9, Fig. 7, is mounted by a single oblique pivot 20 at the top of the cylinder head and is stabilized by a linkage 21, 22 attached to the lower part of the frame 1. A compression spring 25 maintains thebelt tension. Alternatively rubber ring springs may be used at the pivot points and prestressed to replace or assist the spring 25.
Patent GB-1495857-A (GB)
Title: Tooth cleaning implement
IPC: A61C15/04
Filed: 1975-02-27
Abstract: 1495857 Cleaning between teeth E G JOHANSSON B T H BLOMBERG and B H ELMQUIST 27 Feb 1975 [27 Feb 1974 (2)] 8326/75 Heading A5R A manual implement for cleaning the crevices between adjacent teeth comprises a substantially flat, elongate plastics handle 1 with a toothpick 2 frictionally engaged in an axially rotatable bushing 1e mounted in a bore at one handle end and at the other end B a fork for supporting dental floss. The toothpick projects at right angles to the plane P of the handle and is rotatable in the bushing through 360. The other handle end, B is bent upwardly and is bifurcated having diverging arms 1b, with part-helical tracks 1b" adapted to guide dental floss 4 stretched between a fastener 1d and notches 1b', 1c' at the ends of the arms. Tension is selected and maintained in the floss by biasing the arms together by the floss. The angle α between the plane P' of the bent part and the plane P is 5-90, preferably 55-60, the arm length is 10-40mm, preferably 22-28mm, the length of the bent part is 20-26mm and the length of a straight portion b, Fig. 1 is 2-7mm. The toothpick of conventional wood and triangular cross - section, may under pressure, lean sideways with respect to the plane P. by use of e.g. a spherical bushing.
Patent GB-993956-A (GB)
Title: Improvements in or relating to spy-hole devices
IPC: E06B7/30
Filed: 1963-03-01
Abstract: 993,956. Spy-holes. WOOD KEONG FOK, CHING YUE POON, and CHING CHAU POON. March 1, 1963, No. 8335/63. Heading E1J. [Also in Division G2] A spy-hole comprises a front transparent plastics surface 1 and a rear steel surface 2 with transparent plastics eyepieces 18, 19, and a pivoted mirror 7 in between. Shutters 20 for the eyepieces, and a lower shutter 27 for a speaking tube 26, are operated by a knob 24 connected to a push rod 22 which actuates the lower shutter 27 via a pin 31 and a slot 29. The mirror 7 is operated by a pivoted fork 16 acting on a pin depending from the mirror frame 9. Opaque screens 25 are also provided, together with stops 17.
Patent GB-586911-A (GB)
Title: Improvements in and relating to the manufacture of alloy steel plates
IPC: C21D8/02
Filed: 1942-06-17
Abstract: In the manufacture of alloy steel plates, a steel containing manganese, silicon, chromium and a grain refining element such as vanadium, zirconium or titanium is hot rolled, and the plate caused to cool rapidly from a temperature not below the Ar3 point to a temperature of 200-400 DEG C., the upper temperature being established in the roller plates either by reheating or as the end temperature of the rolling operation and then allowing the plates to cool slowly by restraining the loss of heat from them.  In an example, a steel containing 0.28-0.33 per cent. of carbon not more than 0.04 pf phosphorus, 0.8-1.0 of manganese, 0.45-0.65 of silicon, not more than 0.05 of sulphur, 1.6-1.8 of chromium and 0.15-0.25 of vanadium, zirconium or titanium is treated, the rapid cooling produced by quenching with water applied as a mist-like spray, and the final cooling by assembling a plurality of plates in a stack, or by covering the plates with an insulating medium such as sand or ashes.
Patent GB-435129-A (GB)
Title: Improvements in the treatment of cellulose esters in alkaline liquors
IPC: D06M13/342
Filed: 1934-03-16
Abstract: In the treatment of materials made of or containing cellulose esters with an alkaline liquor, saponification of the esters is avoided by incorporating in the liquor a small proportion of aminoacetic acid or a salt thereof.  The following examples are specified.  (1) A mixed fabric of cotton and acetate artificial silk is handled for 1 hour in a boiling liquor containing Chicago blue 6B, sodium carbonate, sodium sulphate and sodium aminoacetate to dye the cotton only; if the liquor is used at 75 DEG  C. the cotton adsorbs less dyestuff.  (2) A similar mixed fabric is similarly treated with the further addition to the liquor of the dyestuff, acetyl-p-phenylenediamine --> p-cresol (cf. Specification 269,934, [Class 15 (ii)]), which dyes the acetate artificial silk a clear yellow.  (3) A mixed fabric of raw natural silk and acetate artificial silk is treated for 1 hour in a nearly boiling liquor containing the fatty acid-taurine condensation product of example 4 of Specification 343,899, sodium carbonate and sodium aminoacetate to remove the tussore silk adhering to the natural silk.
Patent GB-496448-A (GB)
Title: Improvements relating to evaporating apparatus
IPC: B01D1/12
Filed: 1938-03-18
Abstract: <PICT:0496448/III/1> Apparatus for concentrating aqueous solutions, e.g. of caustic soda, ammonium nitrate, caustic potash, by removal of the water by means of the vapour of a substance immiscible with water, e.g. hydrocarbons, comprises a separator 2, a boiler 1 for vaporizing the entraining liquid and communicating with the separator by pipes 5, 6 below the level of the liquid, a condenser 10 and separator 11 for condensing the vapours evolved and separating the water from the entrainer, which latter only is returned to the separator 2 through a pipe 12, the lower part of the separator being provided with a screen or baffle 3 so that the liquid at the bottom of the separator first flows downwardly and then upwardly before entering the pipe 6, the reversal of flow aiding the precipitation of the solids from the solution.  The solution is fed to the separator 1 through pipes 8 provided with nozzles 9. Circulation of the liquid in the boiler 1 may be aided by a pump placed at the bottom of the pipe 6.
Patent GB-748945-A (GB)
Title: Improvements in or relating to electron discharge tubes
Inventor: BECK ARNOLD HUGH WILLIAM
IPC: H01J23/08
Filed: 1953-03-26
Abstract: 748,945. Electron beam apparatus. STANDARD TELEPHONES & CABLES, Ltd. March 26, 1953, No. 8392/53. Addition to 674,758. Class 39 (1). The high-current magnetically-shielded electron gun of the parent Specification is modified to make it suitable for the " Brillouin flow " condition by (a) providing a separate non- magnetic gun anode of smaller diameter than, and supported within, the exit aperture of the magnetic pole-piece or (b) allowing the electrostatic throat of the beam to form slightly beyond (one-tenth to twice the aperture diameter) the exit aperture. In one form the non- magnetic gun anode 44, Fig. 2, is supported within the aperture in the front wall of the polepiece 59 by screws 46. Cathode 41 and focusing electrode 43 are supported on insulating disc 48 bearing against internal shoulder 49 of the pole-piece, which is supported from the envelope by discs 51, 60. Disc 52 supports the tube 31 leading the beam into the utilization space, e.g. the helix of a travelling-wave tube, Fig. 1 (not shown), which may thus be given a different potential by lead 56. In another form, double magnetic shielding is provided by concentric magnetic cylinders 59, 64, Fig. 3, the inner one 64 being supported by the anode 60. Full dimensions are given of an example. The gun may also be used for klystrons.
Patent GB-313228-A (GB)
Title: Improvements in devices for use in drying or airing clothes
IPC: D06F57/12
Filed: 1928-03-20
Abstract: 313,228. Galbraith, A., and Stevenson, W. R., (trading as Lindsay, J.). March 20, 1928. Brackets; garment racks.-A rack comprises bars of strip form jointed to one another at their ends to fold in superposed relation, at least one bar being pivoted to a flat plate with a supporting lug on a mantelpiece or shelf. On a plate 3 attached to a mantelpiece is pivoted at 2 a broad bar 1 to the end of which is pivoted a single or double arm 8 carrying at its other end three pivoted arms 10. The bar 1 normally rests in a lug formed by a lip 6 spaced from and parallel to the plate 3, and the rack, when folded, is turned up to position D. Alternatively a thin bar 19 is pivoted at its ends 18 to vertical strip bars 17 pivoted at 16 to horizontal arms 11 against which they may be swung. The arms 11 are pivoted at 12 to the underside of a shelf 14, and the rack rests when folded in lugs 15.
Patent GB-576259-A (GB)
Title: Means for closing the ends of metal tubes
IPC: B21D41/04
Filed: 1944-05-04
Abstract: 576,259. Rolling tubes. HALL BROS. (NETHERTON), Ltd., and HALL, D. May 4, 1944, No. 8444. [Class 83 (iv)] Tube ends, heated if necessary, are closed by axial rolling. The tube c is chucked in a, spindle b and rolled between rolls o having quadrantal grooves p. The rolls are mounted on cross-slides i closed on the work by a right- and left-hand screw k. The closed end is finished by feeding the saddle e towards the chuck.
Patent GB-330890-A (GB)
Title: Improvements in or relating to road vehicle antiskid devices
IPC: B60C27/02
Filed: 1929-12-16
Abstract: 330,890. Slater, G. R. Dec. 16, 1929. Tyre gaiters. - A chain gaiter 10 is hooked to plates 13, 14 adapted to be clamped around a wheel-spoke 12. The plates may be hooked or bolted together at one end, and at the other end are connected by a hinged bolt 17 and nut 22. The bolt is pivoted to one of the plates, and the nut has a collar portion 24 to engage the enlarged part of a keyhole slot in the other plate.
Patent GB-659118-A (GB)
Title: Process for manufacturing adhesive insulating tape, ribbon, and like strips, and products obtained thereby
IPC: C09J7/30
Filed: 1949-03-30
Abstract: A composition for use in the manufacture of adhesive insulating tape comprises polystyrene in which tetrachloronaphthalene is incorporated in the proportion of two to five parts by weight to one part of polystyrene.  The composition may also contain a plasticizer such as dibutyl phthalate, tricresyl phosphate, triphenyl phosphate and a petroleum distillate or a solvent such as benzene.