baber/WOPTO huggingface dataset:
Patent GB-1286424-A (GB)
Title: Power boost mechanism
IPC: F16D65/28
Filed: 1971-04-26
Abstract: 1286424 Fluid pressure brakes BENDIX CORP 26 April 1971 [8 May 1970] 11282/71 Heading F2F A power boost mechanism for the master cylinder of an hydraulic brake system includes a valve for controlling a variable fluid pressure acting on the piston 24 of a servomotor, a valve actuating lever 27 pivotally connected to the piston 24, to the valve spool 30 and to connecting means secured to a control-rod 48, the connecting means including an input control member connected to the lever 27 through linkage 56 slidable on the latter for varying the position on the lever where acts the force transmitted by the control member.
Patent GB-412017-A (GB)
Title: Improvements in electric cables
IPC: H01B7/30
Filed: 1933-04-18
Abstract: 412,017. Cables. MILLIKEN, H., 107, Craig Street, West-Montreal, Quebec, Canada, and BRITISH INSULATED CABLES, Ltd., Prescot, Lancashire. April 18, 1933, No. 11381. [Class 36.] To diminish " skin effect " in alternating current cables the cable is formed of a number of segmental conductors laid up together helically, each conductor consisting of a number of strands wound helically in layers, so that each strand remains in the same layer throughout its length. The Figure shows such a conductor formed of four segmental conductors, the strands of the separate layers being numbered 1, 2, 3. Each strand is insulated by oxidizing, japanning &c., the insulation being preferably removable by soldering fluid &c. to facilitate connecting the strands in parallel. The segmental conductors may be encased in insulation a.
Patent GB-1507014-A (GB)
Title: Acrylic urethane bobbin finish
IPC: B65H75/10
Filed: 1976-03-22
Abstract: 1507014 Coated wooden bobbin body ROCKWELL INTERNATIONAL CORP 22 March 1976 [2 May 1975] 11402/76 Heading DIE [Also in Divisions B2 and B8] A textile bobbin comprises a wooden bobbin body which has been dried to less than 9% by weight of moisture, a first protective layer adherent directly to and penetrating the exposed surface of the bobbin body, the layer being applied as a coating of a material including the ricinoleate diphenyl methane diisocyanate prepolymer and trifunctional polyether polyol, and a second protective layer adherent directly to the first layer and being applied as a coating of a material including ricinoleate diphenyl methane diisocyanate prepolymer and trifunctional polyether polyol modified with 30% to 50% thermoplastic acrylic copolymer based on polyurethane solids, the second layer being applied before the material of the first layer has completely cured so as to form a diffusion zone between the two layers.
Patent GB-270087-A (GB)
Title: Improvements in or relating to air pumps
IPC: F04B33/00
Filed: 1926-05-01
Abstract: 270,087. Turner, W. May 1, 1926. Check lift valves.-The piston cup leather e, fitting the cylinder of an air pump, constitutes a seat for a spring-urged inlet valve b. On the upward stroke of the piston, the valve opens and air passes round the stem and between the bevelled edges of the valve and leather. An outlet valve is provided in the pump base, having an upper surface of rubber and a cup leather attachment k, pressed upward by a spring.
Patent GB-575416-A (GB)
Title: Process of modifying the molecular structure of oils and fats
IPC: C11C3/10
Filed: 1943-07-14
Abstract: The fatty acid radicles linked to the glycerine in the fatty glyceride molecules of fats or fatty oils are changed by refluxing the fats or fatty oils with a fatty acid ester of a monohydric alcohol having less than five carbon atoms per molecule or with the alcohol itself, in such a way that only the less volatile fraction of the vaporized esters returns to the reaction zone, the more volatile fraction being removed.  Thus, coconut oil may be refluxed with methyl stearate so that methyl esters of C8 and C10 fatty acids are distilled off or palm oil may be refluxed with ethyl oleate so that ethyl palmitate is distilled off.  Molecular rearrangement catalysts which assist the transfer of the fatty acid radicles, for instance soaps of zinc, aluminium, magnesium or tin, or alkali metal alkoxides may be present in the reaction zone.  Where the alcohol is employed, the fat or fatty oil may first be partially alcoholysed by boiling with the alcohol in presence of an ester interchange catalyst, at least a portion of the glycerin formed may then be removed and finally the residue may be refluxed as described above.  Refluxing may be carried out above or below atmospheric pressure and the vapours of a monohydric alcohol may be bubbled through the reaction mixture.  Suitable fats or fatty oils comprise one or more of the following: tallow, cottonseed oil, coconut oil, palm oil, palm kernel oil, whale oil or fish oil, while suitable esters of monohydric alcohols are methyl, ethyl, propyl, isopropyl or butyl esters.  In examples: (1) coconut oil, methyl esters of soyabean fatty acids and a solution of potassium methoxide in methyl alcohol are refluxed together and methyl esters of fatty acids of 12 or less carbon atoms are distilled off; (2) coconut oil and zinc stearate are refluxed together with methyl alcohol passing through the charge and methyl esters are distilled off. Specifications 249,916, [Class 2 (iii)], and 571,209 are referred to.
Patent GB-115136-A (GB)
IPC: G03B15/00
Abstract: 115,136. Duerr, E. June 27, 1917. Cameras for plates and flat films; shutters with sliding plates; aeronautical photography and apparatus.-A camera, especially for taking photographs from aeroplanes, is traversed over a stationary shutter provided with an aperture. In the form shown, the camera a is moved on a frame b by compressed springs e and a cord g adapted to be wound on to a spring drum f, buffer springs h being provided. The shutter c having an aperture c<1> is fixed to the frame b.
Patent GB-127757-A (GB)
Title: Improvements in or relating to Cooling Devices for the Pistons of Internal-combustion Engines.
IPC: F01P1/04
Filed: 1918-07-13
Abstract: 127,757. Douglas Motors, Ltd., Bailey, S. L., and Douglas, W. W. July 13, 1918. Pistons, cooling.-The piston of an internalcombustion engine is formed with a chamber A through which air is blown through ports E<2>, F<2> in the cylinder walls, by a fan on the crank-shaft, preferably constituted by vanes H on the flywheel. The chamber A may be formed integral with the piston, or may be detachably secured to it, e.g. by means of the gudgeon-pin. Cooling- ribs may project from the piston head into the chamber A; or the chamber may be formed with baffles which cause the air to take a spiral or other circuitous path.
Patent GB-131409-A (GB)
Title: Improvements in connection with the Distillation of Coal.
IPC: C10B57/18
Filed: 1918-07-16
Abstract: 131,409. Toogood, H. J., and Dempster & Sons, R. July 16, 1918. Carbonizing processes; retorts, methods of working.-In the distillation of coal, intermittingly charged retorts in direct valveless communication are worked in groups so that the gas formed by admitting steam to a retort, in which the process of distillation is completed and the coke raised to incandescence, passes directly into a retort or retorts charged with coal from which the moisture has been driven off. The sequence of operations is illustrated in Figs. 3, 4, 5. and 6, wherein the arrows indicate the path of the gases through two retorts in direct communication by means of a passage 6. As shown in Fig. 3, the steam is shut off, hot coke in retort a being raised to incandescence and a new charge of coal in retort b being dried. As shown in Fig. 4, steam is being admitted to retort a.. Figs. 5 and 6 illustrate similar phases to Figs. 3 and 4, the roles of the retorts being reversed, retort a. having been recharged and distillation in retort b being completed. The off-take valves may be operated so that the gas first evolved from a new charge may pass through the spent retort or through both retorts, these operations being preliminary to those illustrated in Figs. 3-6. The process may be applied to horizontal retorts placed back to back. Where the partition between such retorts has been removed, one end can be used for the coal. the spent coke being displaced by a pusher to the other end, at which the steam connexion is applied. In Fig. 14 a bench of eight retorts its shown which is worked in two groups of three. and one group of two. The connexion between the retorts may be by means of socketed pipes 12 or by ducts through the brickwork and sides of the retorts. High-pressure superheated steam enters the retorts by a small orifice at the mouth piece and is directed angularly on to the coke. An additional steam connexion 15 may be fitted at the top of the ascension pipe, and can be used in place of the mouthpiece supply and serves for cleaning the interiors of the pipes. The steam may be superheated by waste heat in the manner described in Specification 116,831. Specification 28201/08 also is referred to.
Patent GB-933886-A (GB)
Title: Rotary hook for sewing machines
IPC: D05B57/14
Filed: 1961-03-30
Abstract: 933,886. Sewing-machines. H. G. C. FAIRWEATHER (Singer Manufacturing Co.). March 30, 1961, No. 11679/61. Class 112. To permit the use of very heavy thread in a sewing-machine, a stationary bobbin case carrier 13 journalled in the horizontal axis rotary hook has a radially extending flange 25 provided with a thread loop clearance notch 42 on the cast-off side of the carrier. The carrier 13 has a bobbin case post 24 mounted on a diametral bar 23 attached to the sidewall 20. The notch 42 includes a first edge 43 and a second edge 44 which converge to a throat 45. The edge 43 begins at a point at an angle of approximately 40 degrees in front of the loop seizing position and extends in a straight line towards the innermost portion of the rotation restraining notch 27; the edge 44 extends in a straight line towards a point above the loop seizing position and below the point of stitch formation. To increase the distance between the outer surface of the side wall 20 and the inner wall of the hook body the carrier is positioned lower in the body by making the side wall 20 of the case cylindrical about an axis which is eccentric to that of the periphery of the rib 12. Specification 933,887 is referred to.
Patent GB-623337-A (GB)
Title: Improvements in rotary pumps for circulating liquid under vacuum
IPC: F04C2/14
Filed: 1947-05-01
Abstract: 623,337. Rotary pumps. DISTILLATION PRODUCTS, Inc. May 1, 1947, No. 11686. Convention date, Oct. 14, 1946. [Class 110(ii)] A rotary pump, preferably of the gearwheel type, has a large inlet area 10 provided by restricting the size of the pump head-plate 16 covering +he side of the pump rotor or rotors, to approximately 25-85 per cent of the total head-plate area. Fig. 3 shows a pump of the internally-meshing gear type with a rotor 13 below a headplate 16 having the inlet 10 open to the bottom of a tank 19. Gas bubbles which may form do not clog the inlet. The exposed gear area may be restricted to the small area indicated by the dotted line crescent around the inlet 10, or it may be large enough to include all the gear area except that covered by the dotted line crescent around the outlet 11.
Patent GB-741184-A (GB)
Title: An improved variable speed gear employing endless v-belts
IPC: F16H9/16
Filed: 1953-04-28
Abstract: 741,184. Expanding - wheel gearing. FLENDER, A. F., [trading as FLENDER & CO., A. F.]. April 28, 1953 [April 28, 1952], No. 11703/53. Class 80(2) In expanding-wheel belt gearing, adjustment of the movable pulley disc 9 on driving shaft 4 is effected from a worm spindle 14 through a worm wheel 15 in which a pressure sleeve 16, screwed on a member 17 secured to a cap 2 carrying a bearing 3 for shaft 4, is axially slidable through a key 18, so that the parts 2,15,16, 17 can be removed as a single unit. The wheel 15 is held engaged with the worm by a forked sleeve 24 loose on spindle 14. The other pulley disc 7 on shaft 4 is fixed thereto, the diagonally-opposite disc 11 on driven shaft 5 is adjustably positioned by a nut 23, while the other disc 10 on shaft 5 is controlled by a spring 21 adjustable by a nut 22. An idle-running sleeve 19 is carried on shaft 4 between the discs 7, 9.
Patent GB-129461-A (GB)
Title: An Improved Apparatus for the Hyrogenation of Fats and Oils.
Inventor: MARTIN GEOFFREY
IPC: C11C3/12
Filed: 1918-07-17
Abstract: 129,461. Martin, G. July 17, 1918. Catalytic apparatus.-In hydrogenating oils, fats, and waxes, the oil &c. together with a catalyst is run through heated conduits into which hydrogen is injected through perforated pipes, and the oil and hydrogen are arranged to circulate in opposite directions. Oil, mixed with catalyst, flows from a vessel a through conduits i heated by steam jackets j, and is returned by pipe l, pump k, and pipe m to the vessel a. Hydrogen, injected into each conduit by perforated pipes o, rises through the conduits and vessel a, and is circulated by a pump e, fresh supplies being introduced by a pump q. The oil may be fed to the conduits i in parallel.
Patent GB-984542-A (GB)
Title: Inductive measuring device for registering a linear movement
IPC: G01D5/22
Filed: 1962-03-28
Abstract: 984,542. Measuring displacement electrically. BOFORS A.B. March 28, 1962 [March 29, 1961], No. 11876/62. Heading G1N. A device for registering linear movement comprises a differential transformer, of which the core K can follow the movement, the primary winding P being in parallel with two branches each consisting of a secondary winding S 1 , S 2 , of a few turns of resistance wire, in series with the associated one of equal resistors R 1 , R 2 . The output voltage V S  resulting from core movement is measured by a detector D across the two junctions between the secondary windings and associated resistors. The instrument may be calibrated by means of a pure resistance Rk which is of considerably greater value than R 1  and R 2 . When R k  is shunted across S 2 , the rescillient output voltage is equivalent to a core displacement 1k given by the equation 1k/1s = Np/Ns .R/2Rk where R is the resistance in each secondary and 1s is the length of each secondary winding.
Patent GB-1028101-A (GB)
Title: Liquid polythioformaldehydes
IPC: C08F36/04
Filed: 1964-03-20
Abstract: The invention comprises liquid oligopolythioformaldehydes corresponding to the formula HS(CH2S)nH, in which the mean value of the number n can vary from 2 to 8, which are liquid at ambient temperature and contain more than 69.5% by weight of sulphur.  They may be obtained by reacting gaseous hydrogen sulphide with an aqueous solution of formaldehyde, preferably to give a solution having a concentration of formaldehyde between 1% and 50%, at a temperature between 70 DEG  and 90 DEG  C., preferably as close as possible to 80 DEG  C., the hydrogen sulphide being injected into the said solution until it is completely saturated and until the polythioformaldehyde which has formed remains liquid after the solution has been cooled to normal temperature. The preferred polythioformaldehydes have a molecular weight in the range from 170 to 230 and do not contain more than 0.16% by weight of oxygen. In one embodiment water is first saturated with H2S and then the formaldehyde is introduced along with sufficient H2S to maintain the saturation of the solution until the required product is obtained.
Patent GB-1169659-A (GB)
Title: Machines for Manufacturing Hollow Bodies from Plastics
Inventor: HUGHES MICHAEL
IPC: B29C49/06
Filed: 1966-03-18
Abstract: 1,169,659. Injection-blow-moulding. COPE ALLMAN INTERNATIONAL Ltd. 13 March, 1967 [18 March, 1966], No. 11937/66. Heading B5A. In an injection-blow-moulding machine, the core, which is of a tapered shape, is recessed so that the parison formed thereon is keyed to the core so as to ensure that it remains on the core during withdrawal from the injection mould. The recess is preferably at the end of the core which forms the open end of the parison and may be a circumferential groove extending around the core. The groove may be of rectangular or saw-tooth cross-section. In one embodiment, air is supplied through the core by a poppet valve (Fig. 1, not shown) and in another embodiment, two parts of the core are relatively movable longitudinally to form the circumferential recess therebetween for admission of air, the recess being formed by chamfering of one of the core parts adjacent this gap.
Patent GB-461055-A (GB)
Title: Improvements in or relating to clamping devices for ropes and the like
IPC: F16G11/06
Filed: 1936-04-27
Abstract: 461,055. Capping or coupling ropes. SPITZLI, M. April 27, 1936, No. 11978. Convention date, April 26, 1935. [Class 109] A clamping device for ropes &c., for use as an end fitting or for coupling two ropes, comprises a member 1 having a sinuous hole 2, or holes 2, 3 therein, the rope end being clamped by bolts arranged opposite the peaks within the hole or holes. Holes 11, 12 are provided so that the end of each rope in a coupling device can be viewed. In an alternative form, Fig. 3, the rope end is passed through the eyes of eye-bolts 30, 33, 38, 41.
Patent GB-1267873-A (GB)
Title: An improved seed drill
Inventor: CLARK AUBYN HAROLD
IPC: A01C7/04
Filed: 1970-03-12
Abstract: 1,267,873. Seed drill. ERNEST A. WEBB Ltd. 19 April, 1971 [12 March, 1970], No. 11991/70. Heading A1D. In a seed drill, a rotary seed selector wheel 11, with peripheral seed pockets 12, transports seeds from a seed chamber 10 to an outlet 15; a rotary deflector wheel 13 cooperates with the selector wheel to ensure, in the majority of cases, only one seed per pocket is carried to the outlet, the excess seeds moving to a reservoir 18; a guide 14 encloses the selector wheel between the deflector wheel and the outlet to retain the seeds in the pockets until the outlet is reached; and a deflecting baffle 17, extending towards the deflector wheel is mounted in the seed chamber on the wall of the chamber opposite the wheel. The deflector wheel may have a toothed periphery coacting with a spring blade 19 which vibrates the seeds. Specifications 961,593 and 1,267,874 are referred to.
Patent GB-640893-A (GB)
Title: Magnetic detectors, especially applicable to locomotive torpedoes
Inventor: TERRY VICTOR JOHN
IPC: F42C13/08
Filed: 1940-07-22
Abstract: 640,893. Magnetic firing of torpedoes. STANDARD TELEPHONES & CABLES, Ltd. July 22, 1940, No. 12002. [Class 9 (ii)] Magnetic detector devices for detonating the explosive charge in a torpedo without contact, but which are operated by the approach of a metal ship, comprise a magnetic field produced by a current traversing means on the torpedo, and a search coil affected by the proximity of a ship and located so as to enclose a maximum number of magnetic lines of force of said field. The search coil in practice is wound around the body of the torpedo near the centre. In one arrangement the search coil is used to produce the exploring magnetic field while in an alternative arrangement the search coil is inductively coupled to an exciting coil in a position to induce the maximum inductive coupling. In the first arrangement, Fig. 1, the search coil S forms one arm of a bridge comprising two resistances R1, R2, or two coupled inductances, and a combined resistance R3 and inductance L which balances the search coil in respect of inductance and saturation. A detector D is placed across one diagonal 3, 4 while a direct or alternating current is placed across the other diagonal 1, 2, and the bridge is adjusted so that normally no current passes through the detector. When the torpedo passes near a ship, the reluctance of the search coil causes a charge in inductance in that coil and the balance of the bridge is disturbed, so that a current flows in the detector circuit which may actuate a sensitive relay to explode the torpedo, or if amplified before rectification in the case of an alternating current, an ordinary non-sensitive relay may be used. The device is operative even when the horizontal and vertical components of the earth's magnetic field in the mass of metal have been neutralized. In the alternative arrangement, Fig. 2, the search coil S is inductively coupled to a field producing coil E so as to produce the maximum mutual inductance between the coils, and to avoid disturbances in the search coil due to variations in the exciting current. Another mutual inductance M is connected between the detecting circuit and the exciting circuit of such magnitude and sense as to annul the effects produced by variations in exciting current strength and frequency. If wrecks or other bodies have to be passed in the passage of the torpedo the current is controlled by a clock so that it is not switched on until these objects have been passed. For direct current working the torpedo should be demagnetised and the exciting current should be of such strength that its final value is in the region of maximum incremental permeability.
Patent GB-1499965-A (GB)
Title: Microelectronics and passive microcircuits
IPC: H01L21/70
Filed: 1976-03-25
Abstract: 1499965 Printed microcircuits; resistors G G SMOLKO G F VASILIEV and N M CHIKOVANI 25 March 1976 [25 March 1975] 12092/76 Headings H1R and HIS A passive microcircuit incorporating, e.g. resistance and capacitance comprises an aluminium substrate on which is formed a layer 2 of Al 2 O 3 , e.g. by anodization using an acetic acid electrolyte; overlain by aluminium conductive tracks 3, contact pads 4, capacitor electrodes 5 relative to the substrate 1, and also by aluminium oxynitride resistors 6. A superincumbent aluminium layer is deposited, e.g. by cathode sputtering; and the contact pads, tracks and capacitor electrodes 3, 4, 5 are defined therein by photolithographic etching. The resistors 6 are deposited over a mask by cathode sputtering in nitrogen at a concentration adjusted to define the required resistance values. The oxide layer may be thickened under the tracks and pads to reduce capacitative coupling.
Patent GB-830462-A (GB)
Title: Improvements relating to automatic control mechanism and interpolating devices therefor
Inventor: WOLFENDALE FREDERICK CALEB
IPC: G05B19/4105
Filed: 1955-04-27
Abstract: 830,462. Analogue computors. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 19, 1956 [April 27, 1955; Aug. 9, 1955], Nos. 12103/55 and 22882/55. Class 37. The invention relates to quadratic interpolators such as are used in the automatic control of machine tools, and comprises two interpolators similar to that described in Specification 796,994, fed with key co-ordinate values and providing " x " and " y " output signals as curvilinear functions of time. As shown, Fig. 1, x, y signals are derived as a binary digital code from a punched tape 20 by a tape-reader 21 and passed by a program unit 32, 46 to temporary stores 26 ... 30 and 40 . . . 44, where they are set up as analogue voltages. (The tape-reader, program unit, and temporary stores may be of similar construction to that described in Specification 807,643.) The stored key values of each ordinate are fed sequentially by selector switches 31, 45 to interpolators, each comprising a pair of " quadratic " transformers 34, 35 and 48, 49, connected to rotary tapping switches 36, 50. The tape-reader, selectorswitches and tapping-switches are driven in synchronism by a motor 39. As shown, the output of the interpolators is applied to servoamplifiers 12, 16 to control the position of a work-table 6 In detail, Fig. 2, considering one co-ordinate only, the temporary store is shown as an autotransformer 26 connected through a six-bank selector switch 60 to quadratic transformers 34, 35 so that values x 1 , x 2 , x 3  are applied to transformer 34, then values x 3 , x 4 , x 5  to transformer 35 and then x 5 , x 6 , x 7  to transformer 37, and so on.