baber/WOPTO huggingface dataset:
Patent GB-1320866-A (GB)
Title: Means for connecting substantially cylindrical elements
IPC: F16B21/16
Filed: 1971-09-29
Abstract: 1320866 Rod couplings INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 29 Sept 1971 [1 Oct 1970] 45389/71 Heading F2G On turning sleeve 1, element 2 is freed for axial withdrawal from a coupling, by the contraction of resilient locking ring 8 within groove 6. The contraction is effected by the cam action of bosses 9a, 9b and 9c in recesses 10a, 10b and 10c. The connection may be employed to join two sections of a seismic streamer for underwater seismic prospecting.
Patent GB-968256-A (GB)
Title: Improvements in or relating to cinematograph cameras
IPC: G02B13/00
Filed: 1962-12-05
Abstract: 968,256. Lens systems; cinematograph cameras. PAILLARD S. A. Dec. 5, 1962 [Dec. 7, 1961], No. 46018/62. Headings G2A, G2E and G2J. The objective lens of a cinematograph camera includes at least one movable lens group for varying the focal length and at least one fixed lens group on the image-side of the movable group, there being between the two lens groups reflecting means whereby the optical axis of the fixed lens group can be arranged at an angle (cf. 90 degrees) to that of the movable group. As shown, the fixed group comprises lenses L 8  - L 13  to which light is reflected by the internal surface of prism combination 6, 7 after passing through fixed negative lens L, a movable afocal group L 2  and L 3  and varifocal group L 4  - L 7 . Marginal rays which are not interrupted by the reflecting prism interface pass to a view-finding system L 14  - L 20 , the lens L 18  having a frosted or ground plane surface to aid focusing. The camera may be fitted with a diaphragm having two blades 10 mounted on the needle 11 of a galvanometer, the diaphragm being disposed between the prism 6, 7 and lens L 8  or lens L 7  By means of this objective lens system, the film gate may be parallel to the optical axis of the lenses L 1 - L 7  to make the camera more compact.
Patent GB-1365144-A (GB)
Title: Circuit for measuring the duration of an electrical pulse
IPC: G01R29/02
Filed: 1971-10-06
Abstract: 1365144 Measuring pulse duration ROBERT BOSCH GmbH 6 Oct 1971 [7 Oct 1970] 46377/71 Heading G1U A system of the type in which a pulse duration is converted into a corresponding potential across a capacitor by charging the capacitor with a constant current for the duration of the pulse, is modified, in order that a detector (e.g. a FET or a Darlington pair) sensing the potential across the capacitor may operate in its linear range, by arranging that the capacitor is initially charged to a non-zero reference level and that the duration of the charging process by the constant current is correspondingly reduced. The arrangement described includes two capacitors 11, 12, Fig. 1, which are charged alternately by successively received pulses, the potential across the one that is not being charged being detected by a transistor, T1 or T2 and displayed on a meter 10. Incoming pulses J 1 , Fig. 2, are shortened by a fixed period t 0  by a differentiating circuit 15, a monostable circuit 20 and a subtracting circuit 30, and the resulting pulses J 10  are applied to a bi-stable circuit 40 which causes the capacitors to be charged alternately. Assuming that bi-stable output A 2  is high when the pulse J 1  arrives, a gate 70 is opened and the shortened pulse J 10  causes a charging device 12 to charge the capacitor 12 linearly. Simultaneously, the bi-stable output A 1  is low and allows the potential across the capacitor 11 to be sensed by the transistor T1 and displayed on the meter. Immediately the shortened pulse J 10  ceases, the bi-stable 40 changes its state and the potential across capacitor 12 sensed by transistor T2 is displayed. At the same time, since the output of the subtractor 30 is low, an inverter 38 opens a gate 80, this gate having been readied by the high A 1  output, to cause a discharge circuit D 1  rapidly to discharge the capacitor 11 to the non-zero reference level in preparation for the next input pulse. A detailed circuit diagram Fig. 3 (not shown) using conventional semi-conductor techniques is described.
Patent GB-953673-A (GB)
Title: Urethane modified vegetable oil
IPC: C08G18/36
Filed: 1961-12-28
Abstract: Urethane modified ethylenically unsaturated vegetable oils having drying properties are prepared by reacting, with heating, a hydrocarbon diisocyanate and a diol system comprising a dihydroxy ester of an ethylenically unsaturated higher fatty acid of a vegetable oil with a lower polyol which has at least three alcoholic hydroxyl groups in the molecule and a polyglycol having a molecular weight in the range 150 to 2000, the amount of the polyglycol comprising from 8% to 50% by weight of the diol system, the amount of diisocyanate employed being substantially equivalent to the total hydroxyl of the diol system, and the amount of dihydroxy ester being sufficient to produce a final oil length of 20% to 75%, the reaction being continued with heating until the resultant urethane modified oil possesses substantially no free isocyanate.  The reaction may be performed in the presence of an inert organic solvent, e.g. toluene xylene. The products are air-drying in the presence of siccatives such as cobalt naphthenate and may be used in the production of films. Specifications 914,414 and 953,357 are referred to.
Patent GB-1494865-A (GB)
Title: Magnetic locator or gradiometer having sensors
IPC: G01V3/10
Filed: 1975-11-11
Abstract: 1494865 Magnetometers: detecting magnetic objects SCHONSTEDT INSTRUMENT CO 11 Nov 1975 [20 Nov 1974] 46526/75 Heading G1N [ Also in Division H11 Each of a pair of magnetic sensors 22, 24 for use in a locator as described in 1446741, 2 (see Division G1) includes a cylindrical bobbin in two halves 32, 32<SP>1</SP> to which an end-piece 34 is attached by screws 54 received in bores 58. The bobbin defines by recesses 42 a cavity for a tubular magnetic core 44 of which one end is received in a bore in the bobbin defined by recesses 48 and the other end is received in a bore 52 in the end-piece. The clearance holes 56 in the end-piece allow transverse adjustment of the end-piece relative to the bobbin before the screws are tightened. The bobbin and the end-piece are of a plastics insulating material allowing slight distortion of the portions gripping the core whereby pivotal movement of the core about its end in recesses 48 is produced by the transverse adjustment of the other end of the core with the end-piece. This movement allows adjustment of the sensors 22, 24 so that they provide a null or balanced condition when used as a gradiometer. For use as a locator the sensors are slightly misaligned. The signal winding 72 is wound in an annular groove 70 in the bobbin. In an alternative embodiment Figs 6, 7 (not shown) transverse adjustment of the end-piece (100) is by means of four countersink-headed screws 104 of which the taper surfaces 130 engage inclined, marginal surface portions (132) of the end-piece. Thus loosening one screw and tightening another produces translation of the end-piece and therefore movement of the core relative to the signal winding (144). In both embodiments an excitation conductor 68 passes through each sensor and the tubular support (20) Fig.2 (not shown) to a printed circuit board within a housing (12).
Patent GB-1018409-A (GB)
Title: Improvements in or relating to horizontal looms for weaving
Inventor: DRAPER ALLAN
IPC: D03D49/20
Filed: 1963-11-26
Abstract: 1,018,409. Take-up motions. WILLIAM BIRTWISTLE ALLIED MILLS Ltd. Nov. 20, 1964 [Nov. 26, 1963], No. 46570/63. Heading D1E. Cloth 3 from the loom is delivered by a sand roller 5, passes under the loom and then to a spring loaded pivoted roller or bar 8 which, as it rises, operates a switch 15 to start a motor 14 which drives a roller 4 feeding the cloth on to the beam 12. The roller 4 feeds at a greater linear speed than the cloth is produced so that the roller 8 falls and switches off the motor 14. The cloth may be shielded where it passes under the loom and the switch 15 may operate an electromagnetic clutch connected between the loom drive and the roller 4.
Patent GB-1080285-A (GB)
Title: A breaker block for use with rolling mills, shearing machines, crank-operated pressesnd the like
Inventor: ROSS HORACE KENNETH
IPC: B30B15/28
Filed: 1964-11-12
Abstract: 1,080,285. Rolling. T. I. STAINLESS TUBES Ltd. Nov. 15, 1965 [Nov. 16, 1964], No. 46662/64. Heading B3M. [Also in Division F2] A breaker block for limiting the loads which can be applied to rolling mills, shearing machines and crank-operated presses comprises a shearable disc 12 between a projection 16 on one member 11 and a recess 14 on a second member 10. Such blocks may be provided between the upper pair of bearings and the head of a rolling mill and the disc members may be prestressed and formed from steel having 0À25-0À35% carbon; 0À6-1À0% manganese, 0À05-0À35% silicon and up to 0À06% sulphur and phosphorus.
Patent GB-1455770-A (GB)
Title: Method of and apparatus for the production of lithographic masters
IPC: G03G15/28
Filed: 1974-10-31
Abstract: 1455770 Line-by-line printing G RITZERFELD 31 Oct 1974 [22 Nov 19731 ] 47142/74 Heading G2A A line-by-line image is projected from a moving original 2 on a reciprocatory carriage 1, using a fixed optical system, on to a moving photoconductive sheet 8, the developed image (laterally reversed) being used as a lithographic master. The optical system may consist of a lens Fig. 3, (not shown) a lens/reflector plus one further reflector Fig. 2 (not shown) or a lens/reflector plus three further reflectors, as shown.
Patent GB-1016658-A (GB)
Title: Improvements relating to monoazo pigments and their use
IPC: C09B29/20
Filed: 1963-11-29
Abstract: The invention comprises azo pigments free from water-solubilizing groups of formula <FORM:1016658/C4-C5/1> wherein Ar is a benzene or naphthalene radical which may be substituted.  The dyes are prepared by coupling diazotized 4-chloro-3-aminobenzoic acid 21,41-dichloroanilide with a 2-hydroxy-3-naphthoic acid arylamide preferably in the presence of a solvent such as methanol, ethanol, an ethylene glycol ether, acetone, dimethyl-formamide, toluene, chlorobenzene or nitrobenzene and/or a dispersing agent, e.g. alkylene oxide/fatty alcohol or acid condensation products or formaldehyde/naphthalene sulphonic acid condensation products. The pigments may be improved by treating with organic solvents at 100-200 DEG  C. and by milling alone or in the presence of auxiliaries, e.g. salts or organic solvents.  The pigments may be used to colour inks, lacquers, paints, resins, cellulose derivatives, rubber and paper and in the pigment printing or pad dyeing of textiles.  Examples describe the preparation of the dyes.ALSO:Synthetic resins such as polyethylene, polystyrene and polyvinyl chloride and compositions thereof such as alkyd resin lacquers are pigmented by azo dyes free from water-solubilizing groups of formula <FORM:1016658/C3/1> wherein Ar is a benzene or naphthalene radical which may be substituted in yellowish red shades.  In examples: (6) a stoving lacquer is prepared comprising titanium dioxide, solutions of a coconut alkyd resin in xylene and a melamine resin in butanol, xylene, ethylene glycol monomethyl ether and the dye 4-chloro-3-aminobenzoic acid-21,41-dichloro-anilide->2 - napthol - 3 - carboxylic acid - 21,41 - dimethylanide; (7) a mixture of polyvinyl chloride, dioctyl phthalate, dibutyl tin dilaurate, titanium dioxide and the dye 4-chloro-3-amino-benzoic acid-21,41-dichloroanilide-> 2-naphthol - 3 - carboxylic acid - 21 - naphthylamide is rolled to a foil.ALSO:Stoving lacquers pigmented with an azo dye of formula <FORM:1016658/B1-B2/1> wherein R is a benzene or naphthalene radical which may be substituted, are described.  In Example 6 a stoving lacquer comprising titanium dioxide, solutions of a coconut alkyd resin in xylene and a melamine resin in butanol, xylene, ethylene glycol monomethyl ether and the dye 4-chloro-3-aminobenzoic acid - 21,41 - dichloroanilide --> 2 - naphthol - 3-carboxylic acid-21,41-dimethylanilide is sprayed on to an aluminium sheet, allowed to dry and stoved to give a yellowish-red coating.
Patent GB-1044179-A (GB)
Title: A process for preparing water soluble alkyd resins
IPC: C08G63/12
Filed: 1963-11-29
Abstract: A polyester resin is prepared by neutralizing with NH3 or an amine a condensate, having an OH number of 25-200 and an acid number of 25-100 derived from a polyvalent acid component and a polyol, the polybasic acid component containing at least a dibasic acid and 10 mole per cent of an acid of basicity greater than 2 or an anhydride of such an acid.  Drying or non-drying oils, oil fatty acids or resin acids may be added during preparation.  Pigments and/or water-soluble urea-, melamine- or phenolformaldehyde resins may be added to the product.  Driers may be added to the products containing unsaturated fatty acid residues.  The products may be used as coating compositions, impregnants and adhesives.  Acids of basicity greater than 2 specified are: trimellitic, hemimellitic, pyromellitic and citric and malenized unsaturated fatty acids, e.g. soya oil fatty acid, and colophony.  Dibasic acids specified are: phthalic, isophthalic, adipic, succinic, azelaic and sebacic.  Polyols specified are: ethylene glycol, propane diol, glycerol, pentaerythritol, neopentyl glycol and the monoglyceride of soya oil fatty acid.  Amines specified are NMe3 and NEt3.
Patent GB-1311839-A (GB)
Title: Semiconductor components
IPC: H01L21/00
Filed: 1971-10-12
Abstract: 1311839 Semi-conductor devices SIEMENS AG 12 Oct 1971 [22 Oct 1970] 47364/71 Heading H1K Either or both of the emitter and collector of a bipolar transistor is or are constituted by a rectifying metal semi-conductor or metal silicidesemi-conductor contact, on an epitaxial semiconductor layer situated on a substrate of the opposite conductivity type. In the figure an island defined in an N-type epitaxial layer 2 on a P-type Si substrate 1 by P<SP>+</SP> isolation walls 7, 8 includes a lateral bipolar transistor the emitter and collector of which are both provided by metal semi-conductor contacts 43, 44. Another island defined by isolation walls 8, 9 includes a bipolar transistor having a rectifying metal semi-conductor emitter contact 46, an ohmic base contact 37 and an ohmic collector contact 38 connected to the substrate 1 through the isolation wall 9. Suitable metals for all the contacts in the illustrated structure are Al, Ti, Pt, Pd, Rh, Co or silicides thereof.
Patent GB-1305268-A (GB)
IPC: G06M1/10
Filed: 1970-10-08
Abstract: 1305268 Photo-electric counting and sizing  COULTER ELECTRONICS Inc 8 Oct 1970 [9 Oct 1969] 47848/70 Heading G1A In a particle sizing and counting arrangement the sample (a fluid carrying the particles) is introduced into the centre of a liquid stream preferably having the same refractive index as the fluid flowing through a flow cell and a light beam the light from which is scattered by a particle and detected, is focused on said centre of flow. An iso-kinetic flow of the carrier fluid is obtained by introducing the fluid to the cell through a group of identical channels positioned across the mouth of the cell. The sample cell 63, Fig. 1, is mounted in an inverted position above the flow cell 28 during test and has a capillary tube 73 through which the sample is driven by compressed air injected into the sample cell by a pipe 67. A complete apparatus is described in which provision is made for seating different sizes of sample containers and for rotating the sample carrier from a loading to a test position. The beam path includes a narrow slit of the order of particle size, and a dark field stop disc 33 having an  annular aperture 33' and a central aperture 34 the beam through which can be interrupted by a tuning fork mounted shutter to produce calibration signals. The particle output pulses may be graded in a pulse height discriminator and counted in their respective pulse size grades. The carrier liquid may be filtered and re-used and provision may be made for adjusting the intensity of the source. Air bubbles may be detected by a photo-cell to terminate counting.
Patent GB-1361575-A (GB)
Title: Gas valves
IPC: F23N5/10
Filed: 1972-10-18
Abstract: 1361575 Gas valve EMERSON ELECTRIC CO 18 Oct 1972 [26 Oct 1971] 47947/72 Heading G3P [Also in Division F4]  In a gas valve comprising a main passageway 44, 46, 48 connecting an inlet 22 and an outlet 50 controlled by a main valve 54 actuated by a diaphragm 62, a chamber 66 on one side of the diaphragm is connected to the passageway part 44 via passageways 78, 74 and a control valve 82 and is constantly connected to the passageway part 48 by passageways 78, 94, 100 and an orifice 116. The passageway 74 also includes an orifice 80 which is bigger than orifice 116 so that pressure in chamber 66 can build up when valve 82 is open. The valve 82 is thermostatically controlled. A pressure regulator valve 104 is included parallel with orifice 116 to relieve any excessive build-up of pressure in chamber 66 so that a desired flow through the main valve is maintained. Chamber 64 on the other side of the diaphragm is constantly vented to passageway part 48. The gas valve is also provided with a thermocouple-electromagnetically actuated valve 26 which must be manually opened by a rod 144 and knob 138. The knob 138 also operates a rotary plug valve 18.
Patent GB-1443969-A (GB)
Title: Charge transfer device signal processing system
IPC: H03H11/26
Filed: 1973-10-16
Abstract: 1443969 Active filters; transistor gating circuits TEXAS INSTRUMENTS Inc 16 Oct 1973 [2 Jan 1973] 48137/73 Headings H3U and H3T A matched filter comprises: a charge transfer delay line; respective detectors coupled to sample the signal at each stage; positive and negative buses for receiving selected ones of the sampled signals; switching means connecting the outputs of each detector to the positive or negative bus selectively in response to a coded control signal; and means for summing the outputs from the two buses. One embodiment of the transversal filter, Figs. 2a, 6b comprises a charge transfer delay line formed by FET's T2, T3, T4,... with their associated capacitances C2, C3, C4,... each node, e.g. A, B, being coupled via an FET, e.g. 28, 30, to a summing output circuit. The output circuit is shown in Fig. 6b as R L  and the coupling FET's are designated 50. In order to vary the weighting of the various outputs the coupling FET's may include adjustable weighting impedances, such as further FET's, in series with them. Where positive and negative weighting coeficients are required Fig. 4 (not shown) they may be summed in an FET amplifier Fig. 7 (not shown) or a switching circuit, Fig. 5 may be used to switch the weighting circuits between the positive and negative coefficient lines. The switches may be controlled digitally by a shift register. Switching circuit details, Fig. 5.-If a potential V z  is applied to input A and zero at input A, FET is turned on, and node BB is shorted to V DD . FET T25 acts as a source load for T21. The source 38 of T25 is connected to a low impedance summing node such as the emitter of a common base bipolar transistor, or the source of a common gate IGFET. Transistors T23, T24 are held off. Reversing the A, A inputs will similarly connect the input at T21 gate to the output line 36.
Patent GB-1308899-A (GB)
Title: Matrix hole type colour television receiving tube
IPC: H01J29/32
Filed: 1971-10-15
Abstract: 1308899 Colour television tubes TOKYO SHIBAURA ELECTRIC CO Ltd 15 Oct 1971 [15 Oct 1970] 48139/71 Heading H1D A matrix hole-type colour TV receiving tube comprises a funnel and curved faceplate, the faceplate inner surface being provided with a plurality of valleys and hills, a plurality of matrix holes formed on same, and a plurality of phosphor dots (8) overlying the matrix holes (6), (Fig. 2, not shown), wherein in an X-Y co-ordinate system with the Y axis perpendicular to the outer surface of the glass plate, the distance along the X axis between two adjacent points on a curve along the surface contained in a plane including both X and Y axes is from 10 to 50 Á, and the distance between the two points along the Y axis is 2 to 5 Á, the dY/dX at the two points being zero. The glass surface between the phosphor dots may be coated with a black coating material. The inner surface of the defined geometry ensures true circular matrix holes promoting white uniformity characteristics and image clearness is enhanced, and the resin being more uniformly exposed, as discussed in respect of Fig. 5 (not shown). The black coating is prevented from remaining on the hills. The surface dimensions may be selected by the mould-coarseness, heating temperature, moulding pressure and the rate at which the glass is added to the mould. The screen may be fabricated by applying a p.v.a. photosensitive resin, a Hg lamp illuminating same via a shadow mask (Fig. 7, not shown) in a three step process for each colour, at each step resin being light exposed selectively. Black coating material such as graphite is applied to cover the resin dots, and the surface dipped in an aqueous solution of hydrogen peroxides to dissolve the resin dots with the associated black layer, warm water spray enhancing the removal. Subsequently, the phosphor dots are formed by conventional photographic-mask procedures using phosphor layers with photoresist at each stage. The phosphor dot diameter is slightly larger than the matrix holes. The funnel and faceplate may be fused by a low m.p. binder. R.G.B. dots are instanced.
Patent GB-1549339-A (GB)
Title: Filters
IPC: B01D29/41
Filed: 1976-11-19
Abstract: In order to exclude the hazard of forming leaks after each new fitting of the filter plates and each reassembly and - even in the case of suspensions having highly erosive particles, to improve operational safety, the filtrate-discharging vertical hollow shaft (4, 6) is designed in at least two parts. The upper shaft part (4) is the carrier of the filter plates (3), whereas the lower shaft part (6) is sealed by a dynamic sealing package (8) from the housing (1) and the slurry chamber (12) and is mounted outside the latter. The torque connection between the two shaft parts (4, 6) is of a push-in type, and the connection has at least one seal (14, 15) between slurry chamber (12) and clear chamber. When one of the two shaft parts (4 or 6) is removed, the other respective shaft part (6 or 4) remains centred in the apparatus, as a result of which reassembly is foolproof. <IMAGE>
Patent GB-1124158-A (GB)
Title: Tape apparatus
Inventor: RAYFIELD HARRY F
IPC: G11B15/43
Filed: 1966-11-01
Abstract: 1,124,158. Multiple tape recorders. BURROUGHS CORP. 1 Nov., 1966, No. 48875/66. Heading G5R. In a space saving arrangement four independent tape recorders A-D each with vacuum column tape reservoirs are mounted on a common base 30 and connected to a common vacuum source 24. Each recorder includes a pair of coaxially. mounted separately-driven tape reels and two vacuum reservoirs-one from each of the adjacent pairs of reservoirs 20-23 dispersed between the recorders with their inner ends connected to vacuum source 24. In the recorder A the tape is guided from an upper reel via guides 32 into vacuum chamber 21A and thence via forward drive capstan 33 and pinch roller assembly 35 to transducer 31. From the transducer the tape is guided via reverse drive capstan 34 and pinch roller assembly 36 to vacuum chamber 20A and thence to the lower tape reel. The reel drive motors are controlled by long and short loop sensors in the associated vacuum chambers. Fig. 4, (not shown) indicates a belt arrangement for commonly driving all the recorder capstans from a single drive motor.