baber/WOPTO huggingface dataset:
Patent GB-844465-A (GB)
Title: Aerial switching devices
Inventor: ZADNICEK STANISLAV
IPC: H01P1/12
Filed: 1957-09-11
Abstract: 844,465. R.F. couplings. TESLA NARODNI PODNIK. Sept.11, 1957, No. 28649/57. Class 40(7). An aerial switching system capable of connecting a number of transducer lines I, II, III each to any desired aerial feeder chosen from a number, 1, 2, 3, 4, 5, has the transducer lines in a plane parallel to and spaced from a plane in which the aerial feeders run in a direction at right-angles. Both the lines and the feeders are two conductor lines and interconnection is made by contact switchgear, shown schematically only in Fig. 1, which disconnects unused line sections and makes the required connections by means of conductor links. One set of switches is shown in plan view in Fig. 2 and comprises a pair of two-pole two-position switches 9, 10 (see also Fig. 1) having straightthrough contacts in the planes of the conductors and interconnection contacts in planes parallel to, but between, the conductor planes. These interconnection contact planes are likewise spaced apart from each other and the conductor links run each between one contact in one plane and one in the other. Following the direction of signal flow the left contact of the first switch is connected to the right contact of the second and vice versa. The conductor links comprise straight sections Pi and P 2  in a plane C perpendicular to the conductor line planes and at 45 degrees to the conductors themselves. The perpendicular distance between P 1  and P 2  is at least as great as the distance between the conductors of the lines. At each end of the straight sections arcuate sections comprising simple curves in the plane containing the straight section concerned and the appropriate switch contact complete the links. The lengths of the sections P 1  and P 2  can be varied to suit the spacing of the lines and like factors, in the limit they may be of zero length.
Patent GB-660813-A (GB)
Title: Improvements in or relating to record changing mechanism for magazine gramophones
IPC: G11B17/16
Filed: 1948-11-04
Abstract: 660,813. Automatic gramophones. DA COSTA, H., and PLESSEY CO., Ltd. Nov. 4, 1949. [Nov. 4, 1948] No. 28681/48. Class 40 (ii). In an automatic gramophone of the kind in which records are stored on a centre post and released one by one on to the turntable, the lowermost record is released by means of a retractable member 6 which, when retracted under the influence of the downward movement of a plunger 14, moves an upper spring loaded member 11 outwards to displace the lowermost but one record so that it rests on a sloping surface 4 in a cut out portion of the centre post while the lowermost record 18 falls to the turntable. During the return movement of the plunger 14 the lowest record of those remaining is urged down the sloping surface 4 by the member 6 and comes to rest thereon.
Patent GB-1518186-A (GB)
Title: Preparation of polyphenylene oxides using a manganese(ii)orthohydroxy-areneoxime chelate reaction promoter
IPC: C08G65/00
Filed: 1975-07-08
Abstract: 1518186 Polyphenylene oxides GENERAL ELECTRIC CO 8 July 1975 [24 July 1974] 28718/75 Heading C3R Polyphenylene oxide polymers are obtained by reacting a phenol with oxygen in a basic liquid medium in the presence of a chelate complex obtained by reacting a divalent manganese compound with a hydroxyareneoxime in which a hydroxy group attached to a divalent arene radical is in an ortho position relative to a radical of formula where Ra is hydrogen or alkyl. The chelate may be a mono- or poly-ligand complex. The polymerization may be carried out in the presence of a primary amine. In Examples 2,6-xylenol is reacted with oxygen in toluene, toluene and methanol or chlorobenzene and methanol, aqueous sodium hydroxide being added to make the media basic; the chelate catalysts are obtained by reacting manganese chloride with salicylaldoxime, 2-hydroxy-5- chlorophenylaldoxime, 2-hydroxy-5-bromophenylaldoxime, 5-methyl-salicylaldoxime and 2-hydroxy-5-methylacetophenoneoxime.
Patent GB-445857-A (GB)
Title: Manufacture of nitro-derivatives of 1-sulpho-2-hydroxynaphthalene-3-carboxylic acid
IPC: C07C303/22
Filed: 1934-10-08
Abstract: Nitro derivatives of 1 - sulpho - 2 - hydroxynaphthalene - 3 - carboxylic acid and its derivatives are made by nitrating 1-sulphur-2-hydroxynaphthalene-3-carboxylic acid or a derivative thereof.  The nitro derivatives may be reduced to the corresponding amino-acids, or converted to the nitro and amino derivatives of 2 : 3-hydroxynaphthoic acid acid by splitting off the sulphonic group. In examples: (1) 1 - sulpho - 2 - hydroxy - naphthalene - 3 - carboxylic acid is nitrated with concentrated nitric acid in sulphuric acid at a low temperature, to give the 6-nitro body; in boiling the product with mineral acid the sulphonic group is split off giving 6-nitro-2-hydroxynaphthalene-3-carboxylic acid, which may be reduced to 6-amino-2 - hydroxynaphthalene - 3 - carboxylic acid; (2) 1 - sulpho - 2 - hydroxynaphthalene - 3-carboxylic acid is similarly nitrated giving the 6-nitro body and also a mixture 8-nitro- and 1 - nitro - 2 - hydroxynaphthalene - 3 - carboxylic acids which is separated; (3) 1-sulpho-2-hydroxynaphthalene - 3 - carboxylic acid is nitrated with a nitrating acid containing aminosulphonic acid instead of sulphuric acid to give the 8-nitro- and the 6-nitro-1-sulpho-2-hydroxynaphthalene-3-carboxylic acids; (4) 1-sulpho-2-hydroxynaphthalene-3-carboxylic acid ethyl (or methyl) ester is nitrated as in example 3, giving the 8- and 6-nitro derivatives.  1-Sulpho-2-hydroxynaphthalene-3 carboxylic acid is made by reacting chlor sulphonic acid with 2 hydroxynaphthalene 3 carboxylic acid in methylene chloride.
Patent GB-1155987-A (GB)
Title: Automatic Curve Follower.
IPC: G06K11/04
Filed: 1966-06-27
Abstract: 1,155,987. Photo-electric curve followers. CALIFORNIA COMPUTER PRODUCTS Inc.. June 27, 1966 [June 28, 1965], No.28774/66. Heading G1A. An automatic curve follower including means for generating first signals indicating whether or not a curve-sensing device has crossed a curve on a recording medium, means for generating second signals indicative of points in a predetermined counting sequence; means for generating digital control signals in response to the first and second signals, and means for moving the curve-sensing device relative to the recording medium in successive steps in either of two co-ordinates in dependence upon the control signals. If the first signals indicate successive non-occurrences of crossings of the edge of a curve the control signals cause sucessive steps of relative movement of the curve-sensing device to effect at least part of a rectangular spiral the first signals indicate a crossing of the edge of a curve the control signals start a spiral movement of the curve-sensing device in the opposite sense to the preceding spiral. The follower, upon being placed at an arbitrary position 43 within the curve, makes a clockwise rectangular spiral of a given radius to point 51 and having failed to locate the curve makes another clockwise spiral search reaching the curve at 45. Thereafter the follower continues along the curve by making alternate clockwise and anticlockwise spirals the change from one spiral direction to the other being initiated by a change in the colour sensed as the photo-electric head passes over the curve boundary. The rectangular spiral movement of the follower comprises a series of discrete steps, each side having from one to four steps as shown by spiral 43 to 51. The direction of the follower taken during each step is governed by logic circuits which effect a change in spiral direction of during the previous step a colour change has been sensed and regardless of whether the complete spiral movement has been made, which is illustrated by the complete spiral made within the curve but only the partial spirals made as the follower proceeds along the curve repeatedly crossing the curve boundary. The follower is stepped relatively to the curve by two co-ordinate pulse motors, one driving the follower in the X direction and the other driving the drum on which the curve is drawn to effect Y movement. The pulses are recorded on tape to provide digital information of the function expressed by the curve.
Patent GB-373527-A (GB)
Title: Improvements in or relating to stone-breaking, granulating and like machines
IPC: B02C1/10
Filed: 1931-10-16
Abstract: 373,527. Crushers with vibrating jaws. MASON, J. H., 93, Loughborough Road, Leicester. Oct. 16, 1931, No. 28777. [Class 59.] In a jaw or crusher member having a renewable crushing surface attached to a carrier frame, the renewable surface is provided with tongues &c. which are bent into contact with lugs &c. on the carrier frame to secure the two parts together. The crushing surface 1, Fig. 1, of manganese steel &c. is provided with pins or tongues 2 of mild steel &c. and is mounted in steel frame 3, Fig. 2, provided with lugs 4. The tongues 2 may project from bosses 2a and form positioning means for the crushing surface in the frame ; additional positioning means such as recesses 6 in the plate 1 and projections 5 on the frame 4 may be used. The tongues 2 are hammered over the lugs 4 to secure the plate to the frame as shown in Fig. 7, and studs may secure the frame to the stock. The upper and lower portions of the plate and frame may be slotted to receive the wedge bolt which secures them to the jawstock or frame of the crusher. The frame for the fixed jaw is recessed at the corners at 14 to receive positioning lugs on the crusher frame.
Patent GB-1428095-A (GB)
Title: Agent for prevention of deposition of lime from water
IPC: C02F5/08
Filed: 1974-06-28
Abstract: 1428095 Decalcifying tablets LONZA Ltd 28 June 1974 [3 July 1973] 28789/74 Heading C1C An agent, for preventing the deposition of lime from water, in tablet form consists of citric acid together with acetylsalicyclic acid and/or boric acid and/or nicotinic acid. The tablet may also contain 0À05 to 1% based on the weight of the tablet of a urea-formaldehyde condensation product. Specification 1,428,096 is referred to.
Patent GB-504129-A (GB)
Title: Improvements in diaphragms for loudspeaker telephones
IPC: H04R7/12
Filed: 1937-10-22
Abstract: 504,129. Diaphragms. MURPHY RADIO, Ltd., and WEBB, A. K. Oct. 22, 1937, No. 28885. [Class 40 (iv)] A loud-speaker cone of paper or like material has its apical portion differentiated from the rest of the cone by impregnation with a synthetic resin which is subsequently polymerized by heating. The resin known under the Registered Trade Mark " Bakelite" may be employed and successive zones of the cone may be impregnated with resins having different elasticity/ density ratios when set.
Patent GB-1022102-A (GB)
Title: Photographic materials comprising a light-sensitive silver halide emulsion layer
Inventor: STEVENS GUY WILLIAM WILLIS
IPC: G03C1/81
Filed: 1961-08-10
Abstract: 1, 022, 102. Photographic silver halide materials. KODAK Ltd. Nov. 12, 1962 [Aug. 10, 1961], No. 28982/61. Heading G2C. Photographic film comprises a support having on one side a silver halide emulsion layer, containing a sensitometrically active concentration of bromide ions and on the other side a layer of a colloid binder containing bromide ions or acid protons in such amount that, when the emulsion layer is in pressure contact with the backing layer, diffusion of the ions or protons into the emulsion layer compensates for the diffusion of the bromide ions from the emulsion layer and the sensitometric properties of the emulsion remain uniform. The compound in the backing layer may be potassium bromide or sulphuric acid.
Patent GB-956046-A (GB)
Title: Improvements in sub-soil drains
Inventor: CARTER RAYMOND CHARLES
IPC: E02B11/00
Filed: 1961-08-11
Abstract: 956,046. Drainage. HEPWORTH IRON CO. Ltd. Aug. 10, 1962 [Aug. 11, 1961], No. 29062/61. Heading A1B. A pipe for use in sub-soil drains is formed of vitrified clay and is provided with holes 2A, 2B which are disposed at such an angle to the vertical centre-plane of the pipe when laid that the lower edge of a hole at the inside of the pipe is at a higher level than the upper edge of the hole at the outside of the pipe. The pipe is arranged in a drainage trench so that the material for back-filling of the trench cannot fall in the holes.
Patent GB-647331-A (GB)
Title: Improvements in or relating to temperature dependent resistances
Inventor: DALY CHARLES TREVOR
IPC: H01C7/04
Filed: 1948-11-12
Abstract: 647,331. Temperature variable resistances; non-metal resistances ; enclosures for resistances. STANDARD TELEPHONES & CABLES, Ltd. Nov. 9, 1948, No. 29085. Drawings to Specification. [Class 37] Thermistor elements or beads are immersed in a suitable insulating and cooling liquid to increase the rate of response to changes in heating current. The liquids .mentioned as suitable are trichloethylene and ethylene glycol and the invention is restricted to these liquids. The Specification includes test data demonstrating the improved time constants obtained for both direct and indirectly heated thermistors. It is stated that the power sensitivity is reduced in the same proportion as the time constant. The arrangement preferred is the usual glass envelope containing the bead and filled with the chosen liquid in accordance with the invention. The beads may be composed of metal oxide mixtures (e.g. as in Specification 545,679) or boron crystal or silver sulphide elements may be used. Specification 615,988 is referred to.
Patent GB-249775-A (GB)
Title: Improvements in or relating to washing appliances
IPC: D06F15/00
Filed: 1925-11-19
Abstract: 249,775. Roberts, C. H. Nov. 19, 1925. Washing-dollies. - Comprises an imperforate upper member a and a grid-like lower member b of greater diameter than the upper member and separated therefrom by a spring f, and having a bag-like collapsable member c secured by rims a to the upper and lower members. A relief valve k may be provided in the handle socket a<2> or apertures may be formed in a downwardly-extending flange of the lower rim e. In a further modification, the upper member a is dispensed with and the upper end of the spring bears against a handle socket member which replaces the member a.
Patent GB-835956-A (GB)
Title: Process for coating tablets
Filed: 1957-09-17
Abstract: A composition for coating pills and tablet cores containing medicaments comprises a solution in water of gelatin and sugar in the proportion of 1.5 to 4.5 parts by weight of gelatin to 1 part by weight of sugar.  The solution preferably contains between 25 and 40% of total solids.  The coating process, by which an improved hard coating soluble in the gastric juices is obtained, is carried out, using a pan coating technique.  The cores are placed in the coating pan and the solution of gelatin and sugar heated to about 70 DEG  C. is added in sufficient quantity to only coat all the cores with a thin film.  To this end 5 fluid ounces of coating solution are used per 60 pounds of cores.  The relative humidity during the process should not exceed 40% and the room temperature should be about 76 DEG F.  When the cores begin to adhere in the coating pan, talc is added, and as the cores begin to roll freely again cold air is blown over them to harden the coating layer.  The process may be repeated as many times as necessary. The cores may be pretreated or sized before applying the coating composition and such sub-coatings may include agar, methyl cellulose, carboxy methyl cellulose, zein shellac or gelatin/acacia mixture.  The gelatin used may be either type A or type B and preferably has a jelly strength of from 90 to 300 bloom. Dyes may be added to the coating composition.
Patent GB-793120-A (GB)
Title: Improvements in or relating to stoves
IPC: F24C15/04
Filed: 1955-10-14
Abstract: 793.120. Stove doors. CARRON CO., and MACLELLAN. H. Oct. 15. 1956 [Oct. 14, 1955], No. 29302/55. Class 126 The door of a solid fuel stove comprises hinged leaves 1 each having interconnected inner and outer frames 3, 4 between which the windows 5 are sandwiched. By this arrangement, a damaged outer frame can be removed without replacing the inner frame, the periphery of which is ground to make a joint with the doorframe 8.
Patent GB-243374-A (GB)
Title: Improved electric battery
IPC: H01M6/24
Filed: 1925-11-20
Abstract: 243,374. Pellini, J. Nov. 22, 1924, [Convention date]. Electrolytes; electrodes; arrangement. - A two-fluid cell has a zinc electrode immersed in a solution of caustic soda and caustic potash and a carbon electrode immersed in a solution in water of bichromate of soda, sulphate of iron, boric acid, permanganate of potash and sulphuric acid. As shown in Fig. 1, the cell container may be provided with handles M, L and a lamp J. Within the container is a porous pot C containing the carbon electrode D which is hollow and perforated. The zinc electrode B surrounds the porous pot and the whole is closed by a rubber washer H and a cover G through which a switch 1 passes. The Specification as open to inspection under Sect. 91 (3) (a) states that the electrolyte in which the carbon electrode is immersed may consist of a solution of chromic acid, sulphate of soda and sulphuric acid or of " ferro-chromic " salt, sulphate of soda, boric acid and sulphuric acid. This subject-matter does not appear in the Specification as accepted.
Patent GB-981382-A (GB)
Title: A method of and a circuit arrangement for recording a clock-pulse train
IPC: G11B20/16
Filed: 1961-08-16
Abstract: 981, 382. Magnetic drum stones. OLYMPIA WERKE A.G. Aug. 16, 1961 [Aug. 30, 1960], No. 29570/61. Heading G4C. In a method of and device for recording a clock pulse track on a magnetic drum, an auxiliary pulse is provided on the drum to determine the commencement of recording when its phase position coincides with a pulse produced by the clock pulse generator, the phase position of the auxiliary pulse being compared, at its next appearance after the recording of the desired number of clock pulses with the next pulse produced by the generator so that the gap between the first and last recorded clock pulses can be made equal to the other recorded clock pulse gaps. As described, clock pulses α are to be recorded on a drum Sk. From the clock pulses are obtained synchronizing pulses # of the same frequency but of reduced pulse length and phase displaced by 90 degrees from the clock pulses. On actuation of a start key T, a synchronizing pulse i 0  changes over a flip-flop F 1  so that on coincidence of the auxiliary pulse W 0  on the drum with a synchronizing pulse #, a gate U 1  is opened to change over a flip-flop F 2  thereby enabling a gate U 2  to pass clock pulses α to the drum Sk and to a counter Z. When the desired number of clock pulses required to completely cover the clock track has been counted, an output i 4  is effective, after delay of one pulse time at V 1  to enable a gate U 3  which is opened if the next synchronizing pulse # coincides with the appearance of the auxiliary pulse W 0  one revolution after recording was commenced. If this is the case, an output i 6  changes back the flip-flop F 1  and a delayed output i 7  changes back the flip-flop F 2  to inhibit further recording. If there is no coincidence, U 3  is not enabled and the recording of clock pulses by overwriting on the clock pulse track is continued until a coincidence is detected, indicating that the gap between the first and last recorded clock pulses is equal to the gap between the other recorded clock pulses.
Patent GB-1279333-A (GB)
Title: Solid electrolytic capacitor
IPC: H01G9/00
Filed: 1970-06-18
Abstract: 1279333 Electrolytic capacitors MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 18 June 1970 [20 June 1969 27 June 1969] 29580/70 Heading H1M [Also in Division C7] The electrolyte in a solid electrolytic capacitor comprises particular γ-manganese dioxide. This may be prepared by electrolysis of manganous sulphate solution acidified with sulphuric acid the product consisting of at least 80% y-manganese dioxide. It is applied to the anodized electrode from a suspension in water or alcohol of particles ground to 100 mÁ to 30Á grain size. The carrier liquid is removed at 70‹ C. then the dried coated electrode is heated at 150‹ C. The anode, inter alia, may be yttrium.
Patent GB-385696-A (GB)
Title: Improvements relating to vent pegs
IPC: B65D51/16
Filed: 1931-10-27
Abstract: 385,696. Vent pegs. SHEPHERD, C. F., 20, Eldon Road, Lower Edmonton, London. Oct. 27, 1931, No. 29771. [Class 21.] A vent peg for beer in casks comprises a peg proper D and a detachable body E containing a ball valve A pressed by a spring B and adapted to be pushed off its seat by a thumb-screw F so that froth &c. may have egress through an outlet H. A wire gauge filter C is also provided.
Patent GB-1048286-A (GB)
Title: Process and apparatus for breaking scored sheets of glass
IPC: C03B33/09
Filed: 1963-07-26
Abstract: <PICT:1048286/C1/1> <PICT:1048286/C1/2> <PICT:1048286/C1/3> A process of breaking glass, in particular glass sheets, along a pre-scored line comprises opening the cut along the score line by mechanical action and then applying heat to the glass to complete the separation of the parts of the glass on opposite sides of the cut.  Pre-scored glass sheets are fed into an apparatus so as to lie between pairs of rollers 1, 2, 11, 21 in a section for opening the cut, the rollers 2, 21 being below the glass sheet 8 and nearer to the marked line.  The rollers are rigidly connected to a rod 3 which is in turn connected at one end to a pivot 5 and at the other end to pneumatic jacks 7, 71.  Upon the operation of a relay the jacks 7, 71 are operated in a time sequence thus pivoting rod 3 and so causing a downward pressing action of the upper roller, and an upward pressing of the lower roller to bend that part of the sheet outside the score line and thus open the cut.  The sheet is then transferred to a breaking section by a plate 27 which swings on an arm 29.  The plate 27 is moved upwardly into contact with the sheet 8 by arm 29 engaging a contact 37 (Fig. 6b) which energizes a solenoid 33 which in turn raises the plate 27 through a series of mechanical linkages. The plate and sheet are then swung into position when the arm 29 engages a contact 39 which causes pairs of electrodes 12, 13, just above the sheet and arranged along the score line where the curves are most pronounced, to open to cause a spark which gives a thermal shock to complete the separation, the unwanted glass falling on to a conveyer.  The electrodes are moved apart by a solenoid 50 actuated by switch 39 operating a rack and pinion 46, 48, the rack 46 being moved forwardly and downwardly on to the pinion by a cam 56 pushing the rack and a pivotal arm 54 which slides in slot 59 of the rack 46.  This moves a series of levers 47, 44, 18 thus causing the electrode to open and a spark to form.  The duration of the arc is sufficient to ensure complete breakage along the cut. Means are provided to cool the electrodes.
Patent GB-236814-A (GB)
Title: Improvements in steering wheels for motor tractors
IPC: B60B1/02
Filed: 1924-12-12
Abstract: 236,814. Butterfield, R. W. Dec. 12, 1924. Tyres, non-elastic. - The rims c of steering wheels for motor tractors are formed tapering from the inner side of the wheel and preferably with rounded edges d. The coned rims may be secured directly to the spokes b, as shown, or formed as separate. tyres for attachment to a wheel having a coned periphery.