baber/WOPTO huggingface dataset:
Patent GB-944505-A (GB)
Title: Improvements in or relating to the production of toughened glass
IPC: C03B27/052
Filed: 1959-02-13
Abstract: In the production of asheet of toughened glass having a selected area, intended to form a vision zone, toughened to a lesser degree than the rest of the glass, the glass is uniformly heated and exposed to the action of a quenching medium simultaneously directed to both faces of the sheet and, in the vicinity of the glass, the flow of the quenching medium is intercepted to said area on one or both faces. so as to restrict the volume of quenching medium arriving in the area whereby when the sheet of glass is factured, the area persists as a vision zone.  As shown, a screen 1 of wire mesh is attached to a steel edge 2 which is wrapped round with asbestos tape 3 for preventing damage to the glass sheet 5 and to form a line of contact therewith, the screen being preferably round, oval, or, as shown, rectangular with rounded corners, and the screen being curved, if necessary, to fit the curve of a curved sheet. A pair of screens 1 are positioned either side of an area of the sheets by steadying frames 6 with top and bottom inturned arms 7 carrying rings 8 similar to those which normally carry straining wires for steadying the glass sheet 5. To carry the screens 1, a carrier 9 attached to each upper ring 8 has a straining bolt 10 with hook 11 to which is attached a rod 12 having a hook 13 to engage one of two eyes 4 secured to the upper edge of the screen 1. The lower rings 8 are secured to eyes 4 on the bottom edge of screen 1 by tensioning wires 14.  Each frame 6 has guide arms 15 passing between guide rollers 16 for advancing and retracting the screen, as by pistons, either side of the glass sheet 5 which is suspended by tongs 17 from hoisting gear.  The glass is cooled by air from tubes 25, with apertures, connected to headers 24 and by pipes 21, 22 and flexible hoses 23 to an air supply, the pipes 21 having guide arms 26 for advancing and retracting the air frame. The air frames may be articulated in known manner for curved glass sheets.  Particularly with glass carried horizontally and bent on to a mould, a single screen may be used, preferably underneath the glass.  The mesh and/or gauge of the wire of the mesh may be varied to regulate the ratio of toughening in the selected area of the main glass.
Patent GB-984488-A (GB)
Title: Improvements in or relating to grease compositions
Inventor: DONALDSON ELIZABETH
Filed: 1963-02-08
Abstract: A grease composition comprises a base oil, an organophilic modified bentonite clay, and more than 0.5 wt. % (based on total composition) of benzotriazole.  The base oil may be a petroleum hydrocarbon oil, a di-, poly- or complex ester, a polyalkylene oxide, a silicone fluid, a liquid polyolefin, a chlorinated diphenyl or wax, or any mixtures thereof.  The modified bentonite clay is preferably one modified with a long chain aliphatic amine salt, particularly a quaternary ammonium salt, or such a salt in which the long chain aliphatic group contains one or more aromatic groups. A dispersant for the clay may be present, e.g. methanol, acetone, propylene carbonate or ethylene glycol monomethyl ether.  Optional additives mentioned include 2,6-ditertbutyl-p-cresol, methylene - 4,41 - bis - (2,6 - ditertbutyl phenol), phosphosulphurized polyolefins, zinc dialkyl dithiophosphates, dialkyl selenides, phenothiazine and alkyl-substituted phenolthiazines. Specification 793,115 is referred to.
Patent GB-894701-A (GB)
Title: Improvements in and relating to polychloroprene
IPC: C08C19/08
Filed: 1961-02-13
Abstract: Polychloroprene is treated with ozone to make a pourable fluid polymer.  The polymer may be treated in solution at e.g., 0-50 DEG C., and the treated polymer may be hydrolyzed to convert any carboxylic acid chloride groups to carboxy groups, or it may be treated with thionyl chloride to convert any carboxy groups to acid chloride groups.  The polymers may be blended with conventional reinforcing agents and they may be cured using conventional curing agents.  They may be used in sealants, caulking or potting compositions and plasticizing agents.
Patent GB-1199132-A (GB)
Title: Improvements in and relating to Devices for Fixing Electric Insulators on Metal Supports
Inventor: LEITON MANUEL MIGUEZ
IPC: H01B17/20
Filed: 1969-01-30
Abstract: 1,199,132. Insulators. M. M. LEITON. 30 Jan., 1969, No. 5239/69. Heading H2C. A device for fixing an electric insulator to a metal support consists of a body of plastics material, in the shape of a truncated cone 1 and having a cavity 37, Fig. 2 (not shown) extending over at least three quarters of the length of the body and longitudinal grooves 4 and a screw thread 2 on the outer surface are provided for effectively securing the device to the insulator. The inner face of the base is bell-shaped.
Patent GB-213891-A (GB)
Title: Improvements relating to electrical circuit-breakers
IPC: H01H33/66
Filed: 1924-02-29
Abstract: 213,891. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Eschholz, O. H.). April 6, 1923, [Convention date]. No Patent granted (Sealing fee not paid). High potential switches: electromagnetic switches.-The contacts of a circuit-breaker are enclosed in an atmosphere rarefied to a pressure of less than 10-5 m.m. of mercury so that any spark formed at break is quickly quenched through the absence of an ionized gas path. According to the construction shown in Fig. 1, contacts 5, 8 are enclosed in an exhausted glass vessel 1 which also contains plates 13, 14 of gas absorbing material such as calcium, phosphorous or magnesium. Upon energization of an electromagnet 11, an armature 9 suspended from a spring 6 is attracted upwards and carries contact 8 with it away from contact 5. The contacts 5, 8 may be made of gas absorbing material. In the modification shown in Fig. 2, a fixed contact 22<a> co-operates with a movable brush contact 27 and there are also co-operating subsidiary contacts 23. Energization of the electromagnet 12 attracts an armature 9 upwards and contact is broken first at the main contacts 22<a>, 27 and later at the subsidiary contact; 23, the upper contact moving upwards under the attraction of an electromagnet 29. Reference has been directed by the Comptroller fo Specification 19304/95.
Patent GB-235264-A (GB)
Title: Improvements in or relating to gramophones
IPC: G11B17/00
Filed: 1924-03-01
Abstract: 235,264. Hanbidge, C. W. W., and Rankin, E. L. March 1, 1924. Driving; speed-regulating. - In a spring motor for a gramophone, the speed is controlled by a governor plate arranged beneath the turntable which carries centrifugally operated friction members adapted to act upon the plate, the distance between the plate and the turntable being adjustable. The governor plate may be stationary, or may be arranged to rotate. A further feature of the invention consists in providing radial arms, concentric with the turntable, for winding the motor. In the construction shown, the governor plate 2, with which coact leaves 4 provided with pads of felt &c. and carried by weighted arms 3 pivoted on the turntable 1, is mounted on a sleeve 5. This surrounds a tubular bearing 6 for the turntable spindle, and is adjustable longitudinally to vary the distance between the plate 2 and the turntable, the adjustment being made by means of a screw 16, acting through levers 14, 11. One end of the lever 11 is forked to engage a grooved collar 9 connected to the sleeve 5 by screws passing through slots in an outer sleeve 8. The latter carries a plate 19 to which are attached radial winding-arms 18, and also bears a wheel 20, gearing with a wheel 21 integral with the casing of the spring motor 17. The driving of the turntable spindle 7 is effected through pawls 24 fixed on the spring casing and engaging a ratchet wheel 22, and through gearing 23, 25, 27, 28. As the turntable rotates, the winding-arms and the plate 2 rotate in the opposite direction. A modification is described in which the adjustable governor plate does not rotate, the winding of the spring being in this case effected by a hand-operated spindle geared through bevel-wheels with the spindle to which the inner end of the motor spring is attached. Rotation of this spindle whilst the barrel drives the turntable is prevented by ratchet-gearing.
Patent GB-414791-A (GB)
Title: Improvements in or relating to electric tumbler switches
IPC: H01H23/12
Filed: 1933-02-22
Abstract: 414,791. Tumbler switches; preventing sparking. ARNOLD, C. L., DOWSETT, R. W., and M.K. ELECTRIC, Ltd., Wakefield Street, Edmonton, London. Feb. 22, 1933, No. 5427. [Class 38 (v).] A tumbler switch comprises a U-shaped rocking member 11 pivoted at 9 to pillars 3 on the base and connected by a spring 13 to a dolly 7 pivoted at 5. Horns 15 on the dolly engage the upper part of the spring 13 to give a positive actuation. A plate 21<a> of insulating material is riveted to each limb of the rocking member 11 and the plates are formed with extensions 23<a> which in the off position move between the fixed contacts 17 and the movable contact constituted by a transverse shouldered bar 35 which is sprung between the plates 21<a> and has its ends projecting to form contact surfaces. Specification 410,232 is referred to.
Patent GB-1476902-A (GB)
Title: Luminescent materials
IPC: C09K11/77
Filed: 1975-02-10
Abstract: 1476902 Luminescent materials and uses thereof PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 10 Feb 1975 [13 Feb 1974] 5486/75 Heading C4S A Ce activated luminescent material is of formula where Me is Sr and/or Ca, A is Na, K and/or Rb, and 0#p#0À10, 0À005#x#0À30, 0#y#0À30, and 0#z#3. x\y may be 0À9 to 1À1. The aluminate has a hexagonal crystal structure. Partial replacement of bivalent Me by univalent A charge compensates replacement also by Ce<SP>3+</SP>. Applications of the u.v. emitting phosphor include high and low p Hg vapour lamps for influencing photochemical processes, e.g. lacquer hardening or for general erythermal radiation. Preparation may be by heating compounds producing oxides, or oxides at 1200-1700 C. for example. Preferably there are two or more heating stages, a first at 800 C. decomposing any hydroxides. Al or part of the alkaline earth added as fluoride increases the reaction speed. Examples are detailed.
Patent GB-1139751-A (GB)
Title: Improvements in or relating to spectacle frames
IPC: G02C7/16
Filed: 1966-02-09
Abstract: 1,139,751. Goggles. FENDALL CO. Feb. 9, 1966 [Feb.12, 1965], No.5695/66. Heading G2J. In sun glasses or industrial glasses in which a pair of side pieces 15 are inter-connected by the front member 10, it may be desirable, on occasions, to provide a pair of side shields 20 which are readily attachable but are only removable with difficulty, e.g. by using a special tool, and accordingly each side shield is such that it can be slid in the direction of the arrow 26, Fig. 2, to engage an abutment 16b on the side piece 15 but cannot readily be slid back again. As shown, each side shield 20 is slotted to engage side piece 15 and has a projection 24 which snaps over the edge 16b of a slot 16a in the hinge plate 16. For removal, an angled tool (30), Fig. 4 (not shown) has its forked end engaged over the hinge securing rivets (19a) so as to disengage projection (24). In a modification. Fig. 6 (not shown) a pair of spaced flanges (121) on the side shield (120) carry a connecting pin (122) which engages between the pair of hinge retaining rivets (19a) by snapping over one of them. In a further form the plastic side shield has a portion (225a), Fig. 8 (not shown), or a leaf spring which engages the plaque (19) connected to the hinge-securing rivets. If only a heat insulator is required on the side pieces, the side shields may be reduced to sheaths with no depending portions.
Patent GB-525440-A (GB)
Title: Improvements in or relating to a method of providing fibrous materials with a finishing coating or varnish
IPC: D06M15/693
Filed: 1939-02-21
Abstract: 525,440. Coated fabrics. INTERNATIONAL LATEX PROCESSES, Ltd. Feb. 21, 1939, No. 5734. Convention date, Feb. 25, 1938. [Class 140] [Also in Group IV] Fibrous materials such as fabric, hides, natural or artificial or reconstructed leather, pasteboard and articles of fibrous material and rubber are coated by providing them with a coagulated layer derived from an aqueous rubber composition comprising unvulcanised rubber, natural or synthetic resin and insolubilized proteinous material and applying a finishing coating on the layer. The protein may be casein or haemoglobin and is insolubilized by formaldehyde either prior to or after application of the rubber composition. The finishing coating may comprise a natural or synthetic resin free from rubber or cellulose lacquer. A further coating of cellulose lacquer or synthetic resin may be appied. One or more priming coatings of an aqueous rubber composition free from resin but preferably containing a protein may be applied. A suitable composition comprises rubber latex, ammoniated casein, pigment and water. After drying, a second coating comprising rubber latex, ammoniated casein, formaldehyde and polyvinyl acetate is applied and followed after drying by a finishing coat of polyvinyl acetate and pigment in benzole. Plasticizers may be added if desired. Polyvinyl acetate may be replaced by a glycerol-phthalic acid anhydride resin.
Patent GB-508238-A (GB)
Title: Improvements in or relating to two-stroke internal combustion engines
IPC: F02B75/02
Filed: 1938-02-23
Abstract: 508,238. Oil engines; valves. HOWALD, W. Feb. 23, 1938, No. 5767. Convention date, Feb. 23, 1937. [Classes 7 (iii) and 7 (vi)] In a two-stroke engine, inlet passages for scavenging air or mixture in the cylinder and inclined to the cylinder axis are opened and closed by controlling-edges formed on the periphery of the piston or piston-ring, the piston being oscillated about its longitudinal axis by the movement of the connecting-rod. The controlling-edges of the piston may also control the exhaust ports. Fig. 1 shows an engine with diametricallyopposed exhaust ports A1 A<1>1, between which are diametrically-opposed inlet ports, one set of which is shown at E1, E2, E3, all these ports being controlled by projecting edges LA, LE formed on the top piston-ring 7. The piston has a spherical connection at K3 with the connecting-rod, which is formed with a lateral pin 9, Fig. 5, engaging the piston body, or a two-part member 10 fitted therein, so as to cause the piston to oscillate as well as reciprocate. The inlet passages E1, E2, E3 are inclined tangentially to give a whirling action to the incoming air, and are also inclined so as to direct the air upwards towards the cylinder head, as indicated by the arrows in Fig. 1. The pin drive 9 may be replaced by bevel gearing, or a member 11, Fig. 9, within the piston may have a spherical bearing in the connecting-rod end, and also in bushes 12 arranged to slide parallel to their axes in the piston body, stops being provided to prevent the member 11 from turning in the plane of movement of the connecting-rod. The fuel injector 15 may be arranged centrally as in Fig. 1, or to one side of the combustion recess in the cylinder head, and is surrounded by an air gap for cooling purposes. An annular member 16 is arranged between the cylinder head and liner, and shaped to fill up the space which is not occupied by the piston projections LA, LE at upper dead-centre.
Patent GB-511854-A (GB)
Title: Improvements in or relating to optical projection apparatus
IPC: G03B23/14
Filed: 1938-02-24
Abstract: 511,854. Optical projection apparatus. KODAK, Ltd. Feb. 24, 1938, No. 5863. Convention date, March 20, 1937. [Class 97 (i)] In a projector having a shutter, the slide is held at a projection opening by means associated with its guideway and adapted to be released on movement of the shutter to intercept the light beam. As shown, the guideway 18 comprises a back plate 19 having an abutment 24 at its lower end and inwardly directed front edges 23. The slide 37b in the projection aperture 17 rests upon a second slide 37a and is held by two springs 33 having curved portions 35 extending through apertures to contact directly with the slide or with a spring member 40 which presses against the slide. The shutter 31 on a pivoted shaft 30 carries projections 41 which press back the springs 33 to release the slide when the shutter closes the aperture. In a modification, only one spring may be used and the shutter may be located on the other side of the guideway.
Patent GB-836693-A (GB)
Title: Improvements in window seals
IPC: B60J10/04
Filed: 1955-02-28
Abstract: 836,693. Draught excluders. BRIGHT, T. J. R. May 28, 1956 [Feb. 28, 1955], No. 5902/55. Class 20(3) [Also in Group XXV] A seal for a sliding window, particularly in a vehicle, comprises a continuous clip 6, capable of universal bending movement, for attachment to a supporting flange adjacent the window, and an effective portion 4 of fabric or like flexible material which has a pile surface 5 only over the portion which makes rubbing contact with the window, the longitudinal edges of the fabric 4 being secured to the clip 6 so that it serves to hold a sponge rubber or other soft support 26 in position on one limb of the clip. One limb of the clip may have pressed out portions 28, 28a at its upper and lower ends to hold the longitudinal edges of the fabric, tangs 27a also being provided to engage the support 26. In a modification the base has pressed out portions to grip one edge of the fabric 4 or the base may have a folded portion for this purpose. In a further form the longitudinal edges of the fabric are held by tangs 27 provided on the upper end of each limb of the clip. Specifications 631,890, 649,137, 700,254 and 707,759 are referred to.
Patent GB-1089360-A (GB)
Title: A process for the continuous polymerisation of lactams in moulds
IPC: C08G69/00
Filed: 1966-02-10
Abstract: <PICT:1089360/C3/1> <PICT:1089360/C3/2> Lactams are continuously polymerized by a base catalysed reaction and simultaneously shaped into continuous articles by filling a continuous mould with fused lactam containing a catalyst and activator as it moves through a feed zone and removing the moulding formed, from the mould when polymerization is completed. Lactams specified are those having more than 6 ring atoms, including caprolactam and caprylactam and mixtures thereof. Catalysts and activators specified include the Na and K salts of caprolactam, 1,6-bis(caprolactam - N - carbamino)-hexane and trimethylcyclobuta-1,3-dione. The lactam melt may also contain regulators to lower the M.W. of the polymer, fillers, dyes, expanding agents, cross - linking agents, e.g. dilactams and triisocyanates, plasticizers and glass fibres.  In embodiments shown in Figs. 1 and 2 a mixture of lactam and catalyst is prepared in (1); a mixture of lactam and activator is prepared in (2) and the two are mixed in (5). In Fig. 1 the melt is fed at (6) into a continuous mould bounded by belts (7) and (9).  (11) is a plastic strip, e.g. polyethylene or ethylene/propylene copolymer which seals the joint between the belts. The moulded melt is compressed by rollers (12) and heated by heaters (8) before emerging as a shaped article at the other end of the apparatus. In Fig. 2 the melt is fed at (6) into a mould bounded by drum (7), belt (8) and sealing strip (12).  The surface of the drum is profiled, the surface either being of the same material as the drum or of plastic or another metal.  Belt (8) is pressed on to the drum by rollers (9) and (9a).  The processes may be carried out in the absence of air and water using a N2 or argon atmosphere.  The melt may be heated by infra-red radiation, steam, a liquid jacket, or hot air to a temperature between the melting points of the monomer and polymer. The product leaving the mould may still be plastic and may subsequently be reshaped, tempered, stretched, granulated, injection-moulded, or extruded to make tapes, films, filaments and driving belts.
Patent GB-163682-A (GB)
Title: Apparatus for testing the electric characteristics, more especially resistance, of fluid and other materials
IPC: G01R31/12
Filed: 1921-02-23
Abstract: 163,682. Krupp Akt.-Ges., F. May 20, 1020, [Convention date]. Damping-arrangements for indicating-apparatus.-In a machine for indicating the mean thickness of leather or the like, oscillations are damped by an elastic link geared to the pointer the shaft of which is fitted with a dash-pot arrangement. A pivoted lev.er G engages a piston rod h<1> having a piston H which moves in a cylinder K against the influence of a coiled spring J. The cylinder is formed with a rack K<1> that transmits movement to a pointer n<2> on a shaft N that actuates a piston Q, which is provided with holes and moves in a cylinder containing oil. The indicating needle thereby assumes a position corresponding to the mean. thickness.
Patent GB-1098310-A (GB)
Title: Fluid control valve
IPC: F16K11/07
Filed: 1966-02-14
Abstract: 1,098,310. Valves. HYDRAULIC UNIT SPECIALTIES CO. Feb. 14, 1966 [June 16, 1965; Sept. 21, 1965], No. 6424/66. Heading F2V. [Also in Division F1] Each valve of a bank of valves has a spool valve 7 slidable in a bore 6 intersected by a pair of exhaust ports 17, working ports 9, 10 feeder ports 14, 15 and an open-centre supply port 11. The feeder ports 14, 15 are in communication through a check valve 16 and the port 14 opens into the supply port 11 upstream of the bore 6; the port 11 has upstream and downstream sections connected to adjacent valves, which sections are in communication when the spool is in the neutral position only; in any other position the communication is prevented and fluid is supplied to the required working port from port 14 or 15. The working ports 9, 10 are connected to the rod and head end of a jack 8 and the spool has a " slow " and " fast " lower positions; " slow " lowering is effected by passing the fluid from the jack head-end to exhaust via a restricted passage 20 in the spool; the passage 20 is removed from the path of the exhaustive fluid during " fast " lowering. " Fast " lowering is prevented by a stop if the jack is heavily laden, the higher exhaust pressure resulting therefrom being sufficient to move a piston 26 within the spool 7 to the right against an adjustable spring causing a cam 32 to urge balls 22 radially to engage shoulder 25 so preventing further right-ward movement of the spool. Inward camming of the balls by the shoulder 25 also provides the operator with an indication by " feel " when he moves the spool into the " fast " lower position, such as when the jack is lightly or moderately loaded. In another form (Fig. 4, not shown), the valve has both " fast " and " slow " raise positions and the stop is operative during either " fast " raise or lower if the jack load is heavy. In the " fast " raise position a regenerative action is provided by using the fluid exhausting from the rod end to augment that supplied by the pump to the head end. The stop device may be connected by external passages to the jack, and the device may operate in the neutral position only of the valve.