baber/WOPTO huggingface dataset:
Patent GB-725589-A (GB)
Title: Improvements in or relating to substituted thiobarbituric acids and their salts and process of preparing the same
Filed: 1953-03-23
Abstract: The invention comprises thiobarbituric acids of formula <FORM:0725589/IV (b)/1> wherein R represents a 2-methylbutyl or secondary-butyl radical, and when R is a 2-methylbutyl radical, R1 is an ethyl radical and when R is a secondary-butyl radical, R1 is an allyl radical; and the pharmaceutically useful salts thereof.  The compounds are prepared by condensing, in presence of an alkaline catalyst (preferably sodium ethoxide), a compound of formula <FORM:0725589/IV (b)/2> with an ester or diester of a compound of formula <FORM:0725589/IV (b)/3> where "y" represents a carboxylic or cyano group, hydrolysing (e.g. with a mineral acid) the correspondingly substituted imino-2-thiobarbituric acid reaction product when "y" is a cyano group and, if desired, reacting the resulting 5,5 - disubstituted - 1 - alkyl - 2 - thio - barbituric acid with a base to form a salt thereof.  Suitable salts include those of alkali metals, e.g. sodium and potassium, alkaline earth metals, e.g. calcium, and substituted ammonium radicals, e.g. ethanolamine, ethylene diamine and tetra-alkyl ammonium hydroxide. In examples ethyl allyl-(2-methylbutyl)malonate is condensed with ethylthiourea to give 1-ethyl - 5 - allyl - 5 - (21 - methylbutyl) - 2 - thiobarbituric acid (the sodium, potassium, calcium and ethanolamine salts of which are also prepared) and ethyl allyl secondary-butyl malonate is condensed with allyl thiourea to give 1,5-diallyl-5-secondary-butyl-2-thiobarbituric acid (the sodium salt of which is also prepared).
Patent GB-980455-A (GB)
Title: Improvements in or relating to organopolysiloxane elastomers
Inventor: ROCH KENNETH MALCOLM
IPC: C08L83/04
Filed: 1961-03-06
Abstract: A vulcanizable composition is made by (1) mixing (a) an organopolysiloxane convertible to the solid elastic state, (b) a reinforcing silica filler; (c) an organosilicon compound of low reactivity, (d) a polar solvent or low molecular weight siloxane of the formula <PICT:0980455/C3/1> wherein each R is a lower alkyl radical, X is H or monovalent hydrocarbon radical and b is from 1 to 20, and (e) a catalyst which promotes reaction between (b) and (c), and (2) thereafter heating the composition, e.g. at 180 DEG  to 200 DEG C. for 2 to 4 hours. Siloxane (a) may contain saturated, unsaturated or halogenated hydrocarbon or cyanoalkyl radicals; organosilicon compounds (c) are silanes or siloxanes containing Si-bonded hydroxyl, alkoxyl or acyloxyl radicals and aryl (with or without other hydrocarbon radicals) radicals, e.g. diphenylsilanediol, triphenylsilanol, diphenylmethylsilanol, hexaphenyltrisiloxanediol; diphenyldiethoxysilane and octaphenyldiacetoxytetrasiloxane; polar solvents (d) specified are methyl and ethyl alcohols, ethylacetate and acetone; catalysts (e) specified are ammonia, ammonium carbonate, silazanes, dibutyltindilaurate, stannous octoate and the reaction product of an amine with a carboxylic acid. Other fillers, e.g. calcium carbonate, diatomaceous earth and metal oxides, and antioxidants may also be added.  The resulting composition may be vulcanized by heating with organic peroxides. Examples are given.
Patent GB-1044985-A (GB)
IPC: B60G17/015
Filed: 1964-02-27
Abstract: 1,044,985. Self-levelling pneumatic suspensions. ROBERT BOSCH G.m.b.H. Feb. 27, 1964 [Feb. 28, 1963], No. 8105/64. Heading B7D. [Also in Division G3] A vehicle suspension system comprises a pneumatic spring 10 and pressure and exhaust air conduits 14, 15, each controlled by a valve 16, 17 actuated by a solenoid 16<SP>1</SP>, 17<SP>1</SP> in circuit with a respective electronic time delay (see Division G3) and a changeover switch 19 sensitive through link 22 to the vehicle chassis height to supply current to one of the time delays and, if the switch remains closed longer than the delay time, to open the respective valve to adjust the chassis height. Transistor 33 will not become conducting to open valve 17 until capacitor 37, the plate of which connected to the base of transistor is initially at a positive potential relative to the transistor has discharged through resistor 35. In a modified circuit (Fig. 3, not shown), the bases of the transistors 32, 33 are connected to the capacitors 36, 37 through amplifier transistors permitting the use of smaller capacitors 36, 37 and greater resistors 34, 35 than before for a given delay time and the solenoids are connected directly to the current source to prevent arcing at the changeover switch contacts.
Patent GB-720848-A (GB)
Title: Improvements relating to photographic pivoted blade lens shutters
IPC: G03B9/08
Filed: 1953-03-25
Abstract: 720,848. Photographic pivoted blade shutters. DECKEL, H., and DECKEL, F. W. March 25, 1953 [June 20, 1952], No. 8265/53. Class 98 (1). A pivoted blade shutter with a positively and oscillatably driven shutter blade ring 6 and with means for supplementary opening or closing of the shutter blades 1, e.g. for focusing purposes, is characterized in that the pivot pins 2 of the blades 1 are arranged on a ring 3 which is itself capable of oscillatory motion for such supplementary opening and closing. Preferably the ring 3 is concentric with the blade ring 6 and is provided with a hand lever 8 projecting from the shutter casing 7 through a slot 9 having stops 11, 12 limiting its movement and adapted normally to snap into a detent 10, Fig. 2 (not shown), adjacent the stop 12. To prevent accidental tripping of the shutter trigger whilst the blades are opened by the supplementary means, the lever 8 having been flexed out of the detent 10 and moved clockwise, the lever 8 may carry a lug projecting into the path of the shutter trigger.
Patent GB-1044589-A (GB)
Title: Improvements relating to synchronous hydraulic devices for driving two windscreen wipers
IPC: F15B11/22
Filed: 1964-02-27
Abstract: 1,044,589. Hydraulic windscreen wiper drive mechanisms. REGIE NATIONALE DES USINES RENAULT. Feb. 27, 1964 [March 4, 1963], No. 8288/64. Heading A4F. A synchronous hydraulic driving device comprises two hydraulic motors M1, M2 (Fig. 3, not shown) having double acting pistons operating two windscreen wipers E1, E2 supplied with oil in series by a distributer D, the piston of each motor (Fig. 1) having an axial conduit 8 fitted with valve mechanisms 9, 10 which prevent oil passage therethrough excepting when the piston is at its damped end of travel position, when oil may flow in the same direction as that of the previous travel of the piston. The hydraulic motor comprises a bore 2 with a double acting piston 6, 7 inside, the conduit 8 of which is closed by valve members 10 urged against seatings 9 by the spring 11. In the position shown in Fig. 1 fluid passing through conduit 4 from left to right through the left hand valve 10 forces it open and then passes through bore 8 and through the right hand valve kept open by projection 5 abutting member 10. When the flow is reversed fluid passes through the right hand valve, and conduit 8 and pushes against the shut left hand valve so driving the piston, and via a rack and pinion 14, 15 the wipers, till projection 5 on the left abuts the left side valve member 10, so opening the valve, thus slowing and stopping the piston. Oil is supplied by pump P (Fig. 3, not shown) through distributer D and conduits 20, 21, to drive the motors M1 and M2, the pistons moving to the right, the residue oil passing to tank B via conduits 22, 25. When the pistons reach the extreme right the oil flows in the same direction through them for a time so synchronising the wiping action at each stroke. The distributer D then reverses the direction of oil flow for the next wiper stroke. Varying the speed of electric motor L1 driving the distributer D varies the frequency of operation of the wipers.
Patent GB-146575-A (GB)
Title: Improvements in or relating to circular-knife skiving machines
IPC: C14B1/00
Filed: 1919-04-03
Abstract: 146,575. British United Shoe Machinery Co., (United Shoe Machinery Corporation). April 3, 1919. Wheel apparatus; machine cutters; grinding in situ.-In a skiving-machine of the cylindricalcutter type, the external edge of the cutter 2 is adapted to be sharpened by a driven annular grinding-wheel 21 carried by a bracket 22 adjustably mounted on an arm 18 by the parts 23, 24, so that the wheel may be adjusted substantially about an axis which meets the cutter tangentially at that part of its cutting edge acted upon by the wheel. Specification 27393/11 is referred to.
Patent GB-1419498-A (GB)
Title: Spinning of textile fibres
IPC: D01H11/00
Filed: 1972-02-23
Abstract: 1419498 Removal of debris from open-end rotor PLATT SACO LOWELL Ltd 22 Feb 1973 [23 Feb 19721 8384/72 Headings DID and D1F An open-end spinning apparatus has an air passage 16, separate from the fiber feed duct 8 and yarn delivery duct 10, through which air is passed continuously in order to clean the rotor interior. The passage 16 may introduce cleaning air as shown or may extract air which enters through the yarn delivery duct, Fig. 2 (not shown). As yarn passes over an edge 24 adjacent the air passage 16 debris is released and carried away by the cleaning air. The air flow can be controlled e.g. by a plate orifice 25 in a duct 17.
Patent GB-1108962-A (GB)
Title: Reversible shift registers
IPC: G11C19/28
Filed: 1965-02-26
Abstract: 1,108,962. Shift registers. BROOKHIRST IGRANIC Ltd. 26 Feb., 1965 [13 March, 1964], No. 8411/65. Heading G4C. A shift register comprises a number of bistable circuit stages along which a mark can be stepped in either direction by phased shift pulses, and two OR gates each receiving the outputs from a pair of stages at one end of the register. The arrangement is stated to be suit - able as a correction signal generator for a control system described in Specification 1,103,731.
Patent GB-481051-A (GB)
Title: Improvements in talking machines
IPC: G11B3/00
Filed: 1937-03-23
Abstract: 481,051. Gramophones. E.M.G. HAND. MADE GRAMOPHONES, Ltd., and MALTBY, E. F. March 23, 1937, No. 8563. [Class 40 (ii)] A gramophone is provided with a screen having a scale or other series of markings on or adjacent thereto and means movable in relationship with the movement of the tonearm or pick-up arm across the record, or of the record beneath the pick-up arm, and co-operating with a source of light to direct a movable indicating image on the screen so that a given position of the image always corresponds to the same position of the stylus in or over the sound groove of a record. As shown, the pick-up arm 5 is pivoted on a horizontal pin 6 which is carried by a member 7 rotatable about a vertical axis in a bearing 8 in the motor board 3. A rod 9 extending downwards from the pin 6' carries at its lower end a mirror 10 between which and a small electric lamp 12, carried in a bracket 11 on the underside of the motor board, is arranged a condensing and focusing lens 13 bearing a hair line. An image of this hair line is reflected by the mirror 10 on to a further mirror 18 on a bracket 17 and thence on to a straight or curved, transparent, graduated screen 16 mounted in an elongated slot 15 in the motor board. Means may be provided for lowering the pick-up 4 accurately on to the record after its location over a desired part of the record groove. Such means comprises a wide lever 19 pivoted at 20 in a bracket 21 in such a manner that one end of the lever can engage and depress the rear end or a rearward extension of the arm 5 to raise the pick-up from the record, as shown in dotted lines. Actuation of the lever 19 is effected through a cord 22 passing around pulleys, one of which is shown at 23, to a drum 25 which is rotated in one direction or the other by hand to raise or lower the arm 5. A spring 26 holds the lever 19 entirely away from the arm 5 when the pick-up is in the lowered or playing position.
Patent GB-177697-A (GB)
Title: Improvements in signal and point lever frames, automatic signal diagrams (illuminated or otherwise) and indicators
IPC: B61L19/14
Filed: 1921-03-21
Abstract: 177,697. Szlumper, A. W., and Thorrowgood, W. J. March 21, 1921. Hand-levers and hand-gearing; miniature signals.-Hand-lever frames for operating signals, points, and locking and fouling bars are arranged so that the operating levers, pushes, or slides are located on a diagram of the portion of track controlled in positions corresponding to the geographical positions of the signals, points, &c. operated. The diagram is also provided with illuminated or mechanical indicators relating to the signals, points, &c. operated. The diagram represents a track divided into insulated track sections T.C.1 - - T.C.7, each having red and green indicators 11, 12, &c. to show when each section is occupied or clear. Pushes A, A<1>, B, B<1>, C, C<1> for controlling the operation of the three sets of points are interconnected in pairs so that the depression of the push A raises the push A<1> and so on. Circuits are thus closed to the points operating motors, and point-detector indicators 26, 27, 28 consisting of white lamps are only lighted when the points are fully moved in either position. Pushes 30, 31 operate a starting-signal and green and red lamp indicators 32, 33 show the operated' position. A single push 34 is provided for operating a warning-siren. The pushes A - - C<1> may be electrically interlocked with the signal pushes 30, 31, or with suitable contacts in lock-and-block system working.
Patent GB-853251-A (GB)
Title: Dynamo-electric machines with supports for the coil ends of two-layer direct current coil windings
IPC: H02K3/50
Filed: 1958-03-18
Abstract: 853,251. Securing coils for dynamo-electric machines. BROWN, BOVERI & CIE A.G., March 18, 1958 [March 18, 1957], No. 8659/58. Class 35. In a dynamo-electric machine having a 2-layer D.C. stator winding whose coil ends 6, 7 are supported by an electrically-insulating supporting-ring 12 arranged radially around the coil ends, there is inserted between each two such ends an electrical insulation piece 8 which matches the shape within the bend of each coil end, and this piece 8, together with an intermediate electrically-insulating segment 13 profiled to match the coil ends and the supporting- ring 12, is pressed radially outwards towards the ring by a U-shaped strap 9 having nuts 11 and a cleat 10 at the ends of the strap. In the embodiment shown, a screw 14 also exerts a radial pressure and the cleat secures two straps 9 but in another embodiment the nuts alone exert the pressure on a cleat having a single strap.
Patent GB-278599-A (GB)
Title: Process of making seats or lids for water-closets
IPC: A47K13/00
Filed: 1927-03-29
Abstract: 278,599. Bretschneider, F. K., Bretschneider, J., and Bretschneider, M. H. March 29, 1927. Closet seats are made by glueing together a number of layers of cardboard or like fibrous material formed with bevelled edges 4, and then compressing in a mould. A celluloid cover 5 may be provided.
Patent GB-492673-A (GB)
Title: Improvements in or relating to optical systems
IPC: G02B27/14
Filed: 1937-03-24
Abstract: 492,673. Optical systems. TECHNICOLOR MOTION PICTURE CORPORATION. March 24, 1937, No. 8674. Convention date, Feb. 12. [Class 97 (i)] In optical systems employing a beamdividing device having a semi-reflecting surface, the intensities of the component beams are made independent of the proportion of plane polarized light in the incident beam by a compensating element which converts the light into elliptically (including circularly) polarized light before striking the reflector. As shown a prism P divides an incident beam for colour photography as described in Specification 373,429, and a quarter-wave plate Q converts any plane polarized light in the beam L into elliptically polarized light. The invention is described with reference to a number of alternative beam-dividing arrangements comprising semi-transparent reflectors, rotary reflectors, and prisms. Specification 475,808 also is referred to.
Patent GB-1438933-A (GB)
Title: Method of and apparatus for constructing a concrete structure
IPC: E04G11/28
Filed: 1972-02-24
Abstract: 1438933 Shuttering for concrete shaft structures JOHN. LAING & SON Ltd and MANOR FORMWORK (ENG) Ltd 24 May 1973 [24 Feb 1972] 8676/72 Heading E1S A hollow concrete shaft structure is cast in successive wall portions by partially embedding support devices 10 in a surface of a wall portion during casting thereof in shuttering, releasing the shuttering from that wall portion and raising it to seat on the support devices 10, fixing the shuttering, e.g. by means of ties, and mounting in the upper part thereof further support devices 10 to be embedded, and pouring the concrete to form the next wall portion. The support devices 10 may be embedded in either or both of the inner and outer surfaces of the structure, and each comprise a flat seating surface on which the lower end of the shuttering can rest. The internal shuttering 12 is suspended from a lifting frame 13 such that it may be contracted and expanded when being raised; the lifting frame 13 may have outriggers 29 from which the external shuttering 14 may be suspended, or the external shuttering may have its own lifting frame. The support device 10 may simply have a projecting ledge, (Fig. 2, not shown), or may have a recessed surface for engagement by pivoted support arm on the lower end of the shuttering, (Fig. 11, not shown).
Patent GB-526521-A (GB)
Title: Portable tents capable of being used as trailers
IPC: B60P3/34
Filed: 1939-03-18
Abstract: 526,521. Convertible tent and trailer. NEIDHART, H. March 18, 1939, No. 8725. [Class 20 (i)] A convertible hammock tent and trailer for a car comprises V-shaped supports 10 with central sleeves 11 which are adapted to receive the ends of spacer bars 12, Fig. 1, when expanded for use as a support, and a cross shaft with wheels 16, Fig. 4, when collapsed for use as a trailer. The hammock frame 13 and tent frame 14 are supported resiliently on the ends of the supports and support a roof-covering 15 with drip strips 18. The sides and ends of the tent covering slope outwardly. A draw-bar for trailing is attached to the ends of the outer supports when these are in collapsed position and a metal trough or basket 17 may be supported by the supports to form a container for the tent and other goods.
Patent GB-388587-A (GB)
Title: Improvements in and relating to adjustable nose irons for weighing scales
IPC: G01G23/00
Filed: 1932-03-24
Abstract: 388,587. Weighing-apparatus. FAIRBANKS & CO., E. & T., and BOUSFIELD, A., St. Johnsbury, Vermont, U.S.A. March 24, 1932, No. 8744. [Class 143.] Relates to a weighing-scale, such as a track scale, of the kind wherein a transverse extension lever carries an adjustable nose iron with a plate fulcrum at the outer end, and consists in providing independent adjustable means to maintain the fulcrum plate in a vertical position and thereby prevent undue flexing of the plate fulcrum under excessive load stresses. The nose iron 3 is secured to the end of the transverse lever 4 by bolts 5 and may be adjusted along a groove 8 by means of a screw operating through a lug 9 on the lever. The enlarged ends of the plate fulcrum 15 are secured by bolts to the nose iron and to a block 21 carried by a plate 22 adjustable on rods 24, 25 extending to the scale beam. The plate fulcrum is prevented from undue flexing under excessive loads by stay rods 28, the - enlarged ends of which are secured respectively to the lower ends of the plate fulcrum and to lugs 27 on the nose iron, a screw adjustment 31 being provided at one end. The suspension rod 25 passes freely through orifices in the nose iron and lever. A check rod 35 extends laterally from the lever to the scale pit wall and is provided along its length with flat reduced portions at right-angles to one another to give resilience to the stay. Specification 387,448 is referred to.
Patent GB-1154539-A (GB)
Title: Improvements in Paddle Tennis Courts
Inventor: REILLY RICHARD JAMES JR
IPC: E01C13/04
Filed: 1968-02-22
Abstract: 1,154,539. Paddle tennis court. R. J. REILLY. 22 Feb., 1968, No. 8756/68. Heading A6D. A paddle tennis court comprises a rectangular deck, 18, with a net, 32, mountable transversely midway along the length thereof, the deck comprising two sections bordering at the net with their adjoining edges spaced from one another, each of the sections comprising a plurality of boards mounted on spaced transverse joists, 17, with the boards of each section parallel with each other as well as lengthwise relative to the court, at least one joist centrally located at the net and means for interconnecting the two sections via the centrally located joist. Uprights, 11, and corner uprights, 10, support a tightly woven strong wire fence, and are themselves supported on the sub-structure, 15, itself resting on concrete piers 16. A low fence, surrounding the court and mounted beneath the screening, has at least one opening for access and removal of material, e.g. after a snowfall, from the deck; a swingable gate, 21, is hinged at its top, 22, to the fence.
Patent GB-344241-A (GB)
Title: Improvements in or relating to plate, dish, and like racks
IPC: A47L19/04
Filed: 1930-03-19
Abstract: 344,241. Plate, dish, &c. racks. ELLARD, H., The Gables, Broad Lane, Wednesfield, Staffordshire. March 19, 1930, No. 8766. [Class 28 (ii).] The racks, which are particularly intended for use with gas-heated cooking stoves, are constructed of a tube or tubes and rods or strips secured thereto by riveting, welding or other operation for producing a permanent joint. The use of screws, nuts and corner lugs is thus avoided, and the application of a porcelain, enamel or like finish is thereby facilitated. As shown, the front and sides of the rack is formed from a tube a, the sides being connected by a flat strip b disposed with its plane vertical and its ends concaved to fit against the tube a to which it is secured by welding as at c, Fig. 4. The bars d are reduced to pass into the strip b and riveted over as at e, and, at the other end, pass through one wall of the tube a to which they are welded as at f. The pins g for engaging the supporting brackets on the stove, and the ends of the depending supporting bars i, are shouldered, passed through both walls of the tube, and then riveted over as at h, j. In a modification, the strip b is replaced by a tube the ends of which pass through one wall of the tube a and are secured by welding. The method shown in Fig. 4 is used for securing the bars d to both tubes.
Patent GB-823814-A (GB)
Title: Improvements in air intake ventilators for rooms
IPC: F24F13/16
Filed: 1957-03-18
Abstract: 823,814. Ventilators. BAXENDALE, R., BAXENDALE, J., BAXENDALE, P. S., and CASELTON, M. J. March 6, 1958 [March 18, 1957], No. 8767/57. Class 137 In an air intake ventilator for a firegrate in a room comprising a disc r having a stem s which screws into a bridge piece t in an annulus u secured to the skirting board c of the room, the disc r when moved from contact with the annulus admits air in a diffused flow either direct from outside the building or from beneath the floor. According to the Provisional Specification frames, each having a pivoted flap or door may be secured to the skirting board, and each frame may be rectangular with screw holes at the corners, the opening of the flap or door having limiting means, with a wire mesh or like guard behind the flap or door. Also, the air may be drawn through a duct from a convector heater in another room.