baber/WOPTO huggingface dataset:
Patent GB-850650-A (GB)
Title: Improvements in or relating to magnetic storage devices
Inventor: RIDLER DESMOND SYDNEY
IPC: H04L13/08
Filed: 1956-11-12
Abstract: 850,650. Circuits of bi-stable magnetic elements. STANDARD TELEPHONES & CABLES Ltd. Nov. 12, 1956, No. 34478/56. Class 40 (9). [Also in Groups XXXV and XL (b)] A magnetic storage element comprises a magnetic cell of material with a square hysteresis loop having hole through which current carrying conductors pass so that current flow produces a first magnetizing force tending to saturate the cell around a closed path, and includes means for producing a second magnetizing force acting, at two points tangentially to.the first force so that at one of these points the two forces oppose thus inhibiting the establishment of remanent flux round the closed path. As shown in Figs. 8 and 9 two conductors pass through an aperture radius r and each carries a half-current, the combined current being such that at a distance 2r the magnetizing force shown by curve 12 has a value K just sufficient to saturate and at radius r the value is 2K. A second magnetizing force 13 is applied so that the combined field is shown by curve 14 and on the radius to point B the combined field varies between K and O and this is insufficient to saturate the material so preventing the production of circular remanent flux which "sets" or operates the cell. Fig. 10 shows 'a cell 39 which is movable between the poles of a magnet 41 and so are under the influence of an inhibiting flux which prevents conductors 42 setting the cell. A single piece of magnetic material may have several holes to provide a number of cells. are all parallel, each spindle being embedded at one end in a base of synthetic resin formed by injection moulding. The running surfaces are formed of synthetic resin (a polyamide) to reduce friction. A spindle 9 carrying the fingerplate 8 has a plastic sleeve 10. A gear-wheel 17 and a cap 12 housing the return-spring 13 or fixed to the end of the spindle 9. The wheel 17 drives a pinion 20 running on spindle 3. The pinion 20 is formed with a bush 21 carrying a cam disc 25 operating impulsing-springs 39, 40. A cam 26, friction coupled to the bush, enters a slot (not shown) in spring40 during the returnmotion of the finger-plate and acts as a stop to prevent spring 39 following 40 as the cam turns. The friction brake governor on spindle 2 is driven firmly only during the return motion by gear 22 and pinion 28, the gear 22 running on the bush 21 but being coupled thereto by a spring 23 so that it is only lightly driven in the forward direction. A projection 41 on gearwheel 17 allows contacts 37, 38 to close only when the transmitter is in the normal position. The transmitter is enclosed by a plastic cap 44 beneath the finger-plate and a transparent, plastic cap 52 at the rear, both caps being snapped into place.
Patent GB-169404-A (GB)
Title: Improvements in connection with number plates of motor cycles or motor vehicles and the like
IPC: B60R13/10
Filed: 1920-12-07
Abstract: 169,404. Brookes, F. S. Dec. 7, 1920. Licence-holders for motor vehicles.-Either the back plate 2<a> or the front ring 7<c> of the licence-holder is formed integral with the numberplate 1 of the vehicle. The licence 3 may rest in a shallow tray 4, which is inserted beneath the glass 5 in the holder. The outer edge of the ring may be flush with that of the back plate, as shown, or it may be bent over the edge of the back plate to render the holder more wet-proof. According to the Provisional Specifications, the holder may be made separate from the numberplate and connected thereto by riveting &c.
Patent GB-1364681-A (GB)
Title: Method of casting
IPC: B22C1/24
Filed: 1971-07-23
Abstract: 1364681 Casting AHLSELL & AGREN AB OY 23 July 1971 [24 July 1970] 34559/71 Heading C3N A method of casting comprises the steps of mixing sand with a binder containing at least 50% by weight of sulphate pitch, forming a mould from said mixture of sand and binder and, without subjecting the mould to ovendrying, charging the mould with a molten metal. The sulphate pitch is defined as the residual product obtained at the last distillation phase in the distillation of tall oil. The binder may contain 80-85% by weight sulphate pitch and include a heavy oil.
Patent GB-282763-A (GB)
Title: Hand-tool device for shoemakers
IPC: A43D5/08
Filed: 1927-12-23
Abstract: 282,763. Rose, L. Dec. 27, 1926, [Convention date]. Awls. - A shoemaker's awl is withdrawn from the work automatically after being used. The awl 11 is carried by a pin 9 which has a striking cap 12 and is surrounded by a casing 5. An outer sleeve 6 is connected to the casing 5 by a compression spring 8, and has a rack bar 14 meshing with a toothed segment 15, upon the spindle of which is mounted a mutilated pinion 17 adapted to gear with a rack 18 on the pin 9. In use, the device is held by the sleeve 6, and the cap 12 is struck to drive the awl 11 into the work. The sleeve 6 is then raised, the awl being withdrawn and the spring 8 compressed. The spring then returns the parts to normal position. In a modification, Fig. 3, the connection between the sleeve 6 and the pin 9 consists of a telescopic rod 19, and gearing 20, 21.
Patent GB-1133512-A (GB)
Title: Improvements in or relating to umbrellas
IPC: A45B25/02
Filed: 1966-08-03
Abstract: 1,133,512. Collapsible umbrella. P. KRAFT. 3 Aug., 1966, No. 34871/66. Heading A4P. A collapsible umbrella of thin crosssection in the closed state (Fig. 1) is provided with apertures 10 at one end 9 of each of the cover ribs 3, the struts 4 and auxiliary struts 11 (see also Fig. 4) through which securement members 12 are connected to the head portion 2, the slider 5 and the auxiliary slider 7 respectively, so that the cover ribs, struts and auxiliary struts are supported by the ends 9 in recesses 13 in the head and sliders, and are located side by side and at either side of the umbrella shaft 1 in one or more straight lines when closed. The apertures 10 run at angles to the longitudinal central axis of the head portion 2 and the sliders 5, 7, the diameter of the apertures being made greater than the diameters of the securement members 12, thus allowing the ribs and struts to be twisted to lie along the shaft 1 and be retained by recesses 17 in the handle 16. Fig. 5 is a part-elevational, part crosssection drawing of the head portion 2. At the handle end 16 of the shaft 1, two diametrically opposite guide rails 18 running in the direction of the longitudinal axis of the shaft are preferably provided, their spacing being greater than the outer diameter of the guide portion 20 of the slider 5, serving to guide and limit the positioning of the cover ribs 3 and struts 4 in the recesses 17. Both the handle 16 and the guide rails 18 are preferably of one-piece construction. Since the ribs lie flat on either side of the shaft, the distance of the ends 8 of the cover ribs 3 from the shaft 1 when open are different, and several eyelets (23, 24, 25) are successively arranged on the outer ends of each rib 3 for selective securement of the umbrella cover 6. The cover ribs may be telescopic or hinged.
Patent GB-841804-A (GB)
Title: Antenna
IPC: H01Q13/02
Filed: 1958-10-31
Abstract: 841,804. Aerials. STANDARD TELEPHONES & CABLES Ltd. Oct. 31, 1958 [Nov. 1, 1957], No. 34998/58. Class 40(7). An aerial system for the transmission or reception of radio energy in two separated frequency bands utilizes energies of orthogonal plane polarizations and is arranged so that in design the radiation patterns for the two frequency bands may be determined independently. The system consists of a first waveguide 1 dimensioned for the transmission of a first wave energy and having a flaired mouth within which lies a second waveguide 2 for the second wave energy of a polarization perpendicular to that of the first. The second waveguide is coextensive with a portion of the first and in a substantially non- interferring relationship with energy propagated in the first. Its mouth is independently flaired. In the embodiment shown the first waveguide consists of a rectangular guide 3 leading to a mouth opening through a part having flared top and bottom walls 4 which control the radiation pattern of the vertically polarized energy propagated along it. The second waveguide is formed by the top and bottom walls of waveguide 3 extended through the flared portion by spaced rods 9 and side walls consisting of the limits of horizontal fins 5, 6, attached to the side walls of the guide 3. As shown these fins are shaped so that waveguide 2 is led out of waveguide 1 to separate translating means 12. It is explained with reference to Figs 4, 5 and 6 (all not shown) that the waveguide 2 may alternatively extend along the full length of waveguide 1 to translating means and the waveguide 1 be fed by a centrally mounted vertical probe at a suitable distance from the end of the guide. The edges of the fins 6 and 7 are flared out at the radiating end of the guide 10 to determine the radiation pattern of the system for horizontally polarized waves.
Patent GB-389434-A (GB)
Title: Improvements in and relating to cinematograph sound films
IPC: G11B13/06
Filed: 1932-12-10
Abstract: 389,434. Combined sound and picture films. I. G. FARBENINDUSTRIE AKT.- GES., Frankfort-on-Main, Germany. Dec. 10, 1932, No. 35080. Convention date, Dec. 11, 1931. [Class 40 (ii).] A transparent sound and picture record film bears a picture record 13, a photographic sound record 14, and a mechanically-recorded grooved sound record 15. The grooved sound record 15 may be impressed into the film without any material being cut out, and may be positioned on the rear side of the film so that the space available for the picture record is not reduced thereby.
Patent GB-490931-A (GB)
Title: Improvements in or relating to synthetic resinous compositions
IPC: C08L67/08
Filed: 1936-12-21
Abstract: Resinous compositions, especially coating-compositions, are obtained by combining dimethylol urea with a non-hydroxylated fatty oil modified alkyd resin which has been prepared with polyhydric alcohol in excess of that theoretically required for the alkyd resinforming reaction, e.g. between 5 and 30 per cent. The dimethylol urea may be suspended in an organic solvent for the alkyd resin and added thereto, or the alkyd resin may be dissolved in a solvent and dimethylol urea added.  Examples are given of the production of alkyd resins from various oils with glycerine and phthalic anhydride, the resins being combined with dimethylol urea dissolved or dispersed in monoethyl ether of ethylene glycol or butyl alcohol and the mixture heated, with agitation, until substantially all of the dimethylol urea is dissolved.  The oils referred to are perilla, soya bean, rapeseed, menhaden, coconut, chinawood and oiticica; linseed or cottonseed oils may also be employed.  Other liquids for dissolving or dispersing the dimethylol urea include the monomethyl ether of ethylene glycol and ethyl, amyl and isobutyl alcohols.  The prepared compositions may be used directly as coating-compositions or may be combined with pigments and fillers.  The resin solution may be combined with cellulose derivative, e.g. cellulose nitrate, compositions to produce lacquers which may contain softeners, plasticizers, other natural or synthetic resins, pigments or fillers. The coatings may be air-dried but are preferably baked, e.g. at a temperature of 200 DEG  F. for 1/2 hour or for a range between 1 hour at 140 DEG  F. and 15 minutes at 250 DEG  F.  Specification 344,401 is referred to.
Patent GB-461375-A (GB)
Title: Improvements in or relating to optical sound recording
IPC: G11B7/00
Filed: 1935-12-18
Abstract: 461,375. Optical sound recording apparatus and processes. KLANGFILM GES. Dec. 18, 1935, Nos. 35143 and 35144. Convention dates, Dec. 19, 1934 and April 15, 1935. [Class 40 (ii)] [Also in Group XXXVI] A method of reducing ground noise when producing a variable-width optical sound record having a straight zero line consists in displacing the image of a toothed screen over a slot in the direction of one tooth edge in accordance with the sounds to be recorded and, simultaneously in the direction of the other tooth edge in accordance with a rectified current representing the envelope of the wave form of the sound to be recorded. A plurality of records is thus obtained, one edge of each of which represents a trace of the sounds to be recorded whilst the other edge represents a trace of the envelope of the wave form. According to the arrangement shown in Fig. 2, the image 11 of a toothed screen 16 is thrown on to a slot 10 bv the mirror 17 of an oscillograph which is actuated by the sound alternating currents so that the image 11 moves in the direction of the tooth edge 12, the screen 16 being moved in the direction of the tooth edge 13 by an electromagnet 18 fed with a rectified current. Alternatively, either the screen 16 or the mirror 17 can be adapted to be moved in both directions. Figs. 3 to 5 show a construction of oscillograph in which the mirror is adapted to be moved in both directions. As shown, the mirror 1 is mounted in a carrier system 3 on a torsion wire 2 of rectangular cross-section, the tension and natural frequency of which can be controlled by clamping its ends in adjustable split bolts 4. Alternatively, only one end of the wire may be adapted for adjustment, the other end being carried by a leaf spring. The mirror carries an armature located in the magnetic field between poles 6 carrying coils 7 fed with the sound alternating currents, the poles being carried by the carrier system 3 and connected to brackets 8 mounted on a bar magnet 9 in such a way as to allow the sound oscillating system to be moved perpendicularly to its axis by the rectified currents. Thus, each pole may have a reduced end surrounded by a plate 10 having a rubber disc 11 interposed between it and the bracket 8 or each pole may be carried by a leaf spring 12 with an interposed rubber disc 11<1>. The carrier system 3 carries a second armature 13 which projects through a central hole in the magnet 9 and the lower end of which is adapted to vibrate in front of or between the poles 14 of a ring-shaped magnet 15. This armature is surrounded by a coil 16 fed with the rectified currents and may be damped by means of a member 18. The carrier system is provided with borings 23 through which cords are inserted to ensure the mounting of the system on knife edges on the free ends of tensioned leaf springs 17, the other ends of which are secured by screws 20 to a body 19. Thrust screws 24 carried by the body 19 ensure correct optical adjustment of the upper surface of the mirror.
Patent GB-762973-A (GB)
Title: Improvements in or relating to the mounting and electrical connection of electrical components into apparatus units
Inventor: HILLS BRIAN
IPC: H05K7/06
Filed: 1953-12-17
Abstract: 762,973. Electrical component assemblies. TELEPHONE MANUFACTURING CO., Ltd. Jan. 26, 1955 [Dec. 17, 1953], No. 35192/53. Class 40(5) A chassis unit comprises a sheet of insulated thermoplastic and/or thermo-setting material into which wires are sealed under the action of heat and pressure, portions of the wiring projecting through one face of the sheet to provide terminals for the connection of components, and the sheet being sufficiently rigid to support the components so connected to the terminals. A sheet of thermo-plastic material A, Fig. 1 formed with a large number of holes is placed in a mould, Fig. 4, with wires interconnecting some of the holes, and a further thermoplastic sheet B is placed above the sheet A and the wiring, the whole being compressed by the upper plate D of the mould and simultaneously heated to a suitable temperature to form a single unit of thermoplastic material in which the wires are embedded. As shown in Fig. 4, the wires are twisted to form terminals which project through selected holes so that after forming the plate appears in section as shown in Fig. 5 with short lengths of wire projecting through nipples a<SP>1</SP> to form terminals v to which components may be connected. Two metal brackets e of which one is shown in Fig. 4 are embedded between the plates A and B and serve to attach the chassis to a front plate extending perpendicular to the plane of the chassis. A strip p comprising a large number of holes is inserted in the mould together with the sheets A and B so that after the moulding operation it is attached to one edge of the chassis. The ends of the wires interconnecting the holes on the plate A pass through the holes on the strip p which thus serves as a terminal board for the wiring embedded in the chassis. This is indicated in Fig. 1 wherein the strip p is shown co-planar with the sheet A instead of perpendicular thereto forclarity. Figs. 6 and 7 show respectively plan and side views of the assembled chassis having components mounted thereon and bolted to a front panel comprising insulating plates t<SP>1</SP>, t' between which is placed a metal plate t<SP>3</SP> forming the lid of a screening can into which the entire unit may be inserted. Fig. 8 (not shown) illustrates an alternative construction of chasis, which is of cranked form for convenience of assembly, in conjunction with other similar units. As an alternative to the construction described, either plate A or plate B may comprise preformed thermo-setting material. In a further modification either plate A, plate B or both plates may initially comprise uncured thermo-setting materials, the curing process being carried out during the moulding operation. Resinous adhesive materials and/or plasticisers may be used to facilitate bonding of the plates A and B.
Patent GB-776993-A (GB)
Title: Aryl magnesium chloride complexes
IPC: C07F3/02
Filed: 1954-12-06
Abstract: The invention comprises aryl magnesium chloride complexes of formula: <PICT:0776993/IV(b)/1> where Q is tetramethylene or pentamethylene oxide which may be substituted by a substituted or unsubstituted alkyl radical containing no group which is reactive under the reaction conditions, n is an indeterminate number of the order of 1 to 3, R1 . . . R5 each represents hydrogen, chlorine, an alkyl, aryl, alkoxy or aryloxy which may be substituted by any group which is not reactive under the reaction conditions and wherein any two or more adjacent hydrocarbon groups may be linked or condensed to form an aromatic ring.  The compound Q may be tetrahydrofuran tetrahydropyran and 2-methyl tetrahydrofuran. Aryl chlorides which may be used include phenyl, tolyl, biphenyl (xenyl), terphenyl, naphthyl, anthracyl, chlorophenyl, phenanthryl, polychlorophenyl, polychlorobiphenyl, xylyl, 2-(or 3,4,5,6,7 or 8) phenylnaphthyl, anisyl, phenetyl, pyrenyl, cadalenyl, perylenyl, acenaphthalenyl, chrysenyl, picenyl, chlorotolyl and tetralinyl.  The aryl chloride may be dissolved in the compound Q and the mixture added to the magnesium.  Ethyl bromide and an iodine crystal with or without ether may be added as a reaction activator.  In an example a flask is charged with magnesium turnings and purged with nitrogen. Tetrahydrofuran and an initiator consisting of ethyl bromide and an iodine crystal are added, followed by a solution of chlorobenzene in tetrahydrofuran.  Heating is applied to complete the reaction. Other examples describe the preparation of tetrahydrofuran complexes of p - chlorophenyl -, 3 : 4 - dichlorophenyl-, 2 : 4 : 5 - trichlorophenyl -, 2 : 3 : 4 : 5 : 6 - pentachlorophenyl -, chlorotolyl -, o - tolyl - p - tolyl-, m - tolyl -, and 2 - ethoxy - phenyl - magnesium chlorides.
Patent GB-781314-A (GB)
Title: Improvements in or relating to the stabilisation of sulphur trioxide
IPC: C01B17/90
Filed: 1954-12-06
Abstract: Sulphur trioxide is stabilized in the liquid (a ) form by adding thereto a small proportion, e.g. 0.1-2 per cent, of an alkylchlorosilane or a methyl siloxane.  Suitable compounds are: trimethylchloro-, dimethyldichloro-, diethyldichloro-, or monoethyldichloro-silanes, hexamethyldisiloxane, cyclic polydimethylsiloxane, or hexamethylpolydimethylsiloxane.  Reference has been directed by the Comptroller to Specifications 744,220 and 744,722.
Patent GB-1367721-A (GB)
Title: Fluid flow control taps
IPC: F16K51/00
Filed: 1972-07-28
Abstract: 1367721 Valves IMI OPELLA Ltd 27 June 1973 [28 July 1972] 35369/72 Heading F2V In a fluid flow control tap, the outlet spout 13 is keyed to the body 10 by an annular segment 17 releasably fixed to the body by a pin 19 screw-threadedly engaging the body and locatable in an aperture 18 of the segment, on assembly the segment being housed in an annular channel 15 of the spout. The spout is thus rotatable relative to the segment and body. The spout may be made non-rotatable by introduction of a second segment (21) (Fig. 2, not shown) located in the channel 15, or it may be made partially rotatable by providing abutment surfaces in the channel. In an alternative construction the segment (36) (Fig. 3, not shown) is housed in a collar (33) which is expandable to fit on to the spout in a fixed or rotatable manner.
Patent GB-1500293-A (GB)
Title: Cartridge modulating valve
IPC: F16H61/06
Filed: 1975-08-27
Abstract: 1500293 Change-speed gear control; clutch control; valves CATERPILLAR TRACTOR CO 27 Aug 1975 [14 Jan 1975] 35370/75 Headings F2D F2L and F2V In a multi-speed vehicle transmission which has hydraulically engaged clutches for selecting the ratios and the direction of travel the fluid pressure is supplied to a clutch through a modulating valve which comprises an inlet 22 for connection to a fluid pressure source, an outlet 27 leading to the clutch, a valve spool 42 slidable in a bore in a valve housing and a valve spool 30 slideable in a bore 35 of the valve spool 42, these valve spools having a first relative position (Fig. 2) in which pressure build-up in the clutch occurs through a passage 49 as fluid pressure is applied initially and a second relative position in which this passage is blocked (Fig. 2B), allowing pressure build-up only through a modulating orifice 50. In the embodiment shown in Figs. 2 and 2B the valve spools 42, 30 are initially in the position shown in Fig. 2, to which they are biased by springs 46, 38. When fluid pressure is supplied through inlet 22 it passes through passage 49 (formed by ports 47 and 48) to a chamber 56 and so to the clutch. The pressure urges spool 30 to the right (as shown) against spring 38, which movement vents a chamber 44 through a port 40 so that valve spool 42 also moves to the right under the pressure, against spring 46. While this occurs the relative movement of spools 30 and 42 has moved the ports 47 and 48 out of registry, thus blocking passage 49. When spools 42 and 30 reach their limits of movement to the right (Fig. 2A, not shown) the passage 49 is again opened and pressure build-up in the clutch continues therethrough until this pressure, in chamber 56, acting in conjunction with spring 38 moves the spool 30 to the left to block passage 49, the position shown in Fig. 2B. Simultaneously pressure enters chamber 44 through an orifice 52 to move sleeve 42 to the left to follow sleeve 30 as pressure build-up continues through modulating orifice 50, the rate of build-up depending on the spring rates and orifice sizes. The final position of the valve, when the pressures in chambers 54 and 56 are equal, is that of Fig. 2. Removal of the pressure in inlet 22 moves the spool 30 to the left to uncover a drain port 32 to release the clutch, a restriction in this port controlling the rate of release.