baber/WOPTO huggingface dataset:
Patent GB-651478-A (GB)
Title: Improvements in or relating to thermionic valve circuits for deriving two equal voltages of opposite phase
IPC: H03G3/22
Filed: 1947-12-09
Abstract: 651,478. Valve amplifying circuits; automatic gain control. PHILIPS ELECTRICAL, Ltd. Dec. 9, 1947, No. 32420. Convention date, Sept. 13, 1946. [Classes 40 (v) and 40 (vi)] A circuit for deriving a push - pull output from a single-ended source comprises a hexode valve 1, with the input applied to the third grid, and the outputs taken from the anode and interconnected screen (second and fourth) grids respectively. The screen grid circuit includes an impedance 2 of such value that the anode current/first grid volts characteristic has a negative slope and a positive feed-back circuit 5, 3, 4 is provided between the anode and the first grid. A control voltage may be applied to the third grid, and a corresponding voltage of lower amplitude and opposite sign may be applied to the first grid. As shown, diodes 7, 8 are connected to give contrast expansion. A neutralizing condenser may be connected between the anode and third grid and negative feed-back may be provided between the anode and third grid and between the screen grids and the first grid, Fig. 3 (not shown). The screen circuit may include a frequency-sensitive impedance of such value that the anode current/input volts characteristic has zero slope for an undesired frequency. The input may be applied to the first grid.
Patent GB-804315-A (GB)
Title: Means for securing a circular object in a frame
IPC: A47G1/06
Filed: 1955-11-14
Abstract: 804,315. Picture and like frames, CLARKE, W. H. May 16, 1956 [Nov. 14, 1955], No. 32426/55. Class 11 A picture or like frame 11 is formed with a cylindrical rotated hole 12, of an appropriate size for the object 17 to be displayed therethrough, the object being held abutted against the rebate by a radially-split annular flat-member 14 of a resilient material and having a substantially cylindrical peripheral surface the member being of a diameter which, when the member is pushed into the hole, will result in the split becoming partially closed whereby the resistance of the member will cause it to expand against the wall of the hole. The member 14 is bevelled as at 14a to facilitate insertion into the frame. Specification 804,316 is referred to.
Patent GB-993645-A (GB)
Title: Conveyor for moving loose materials upwardly and downwardly
IPC: B65G27/00
Filed: 1963-08-16
Abstract: 993,645. Vibratory bowl conveyers. O. HOFLIGER, and R. KARG, [trading as HOFLIGER & KARG]. Aug. 16, 1963 [Sept. 5, 1962], No. 32531/63. Heading B8A. A vibrating bowl 2 provided with a spiral path 1 secured to the internal surfaee thereof is mounted on inclined springs 5 and is vibrated by two horizontal electromagnetic vibrating motors 4. Each motor 4 is provided with a magnet 7 and an armature 6 and is secured to the outside of container 2 so that vibrations are imparted to the container tangentially thereto. Alternatively the armature may be secured to the container whilst the magnet is horizontally mounted on the base 3.
Patent GB-509671-A (GB)
Title: Improvements in and relating to systems of electric spot welding
IPC: B23K11/25
Filed: 1938-11-09
Abstract: 509,671. Control systems for resistance welding. BRITISH THOMSONHOUSTON CO., Ltd. Nov. 9, 1938. No. 32545. Convention date, Nov. 9, 1937. Addition to 495,484. [Class 38 (iv)] Switching control, inductive, control; transformer arrangements.-A spot-welding supply arrangement in which the welding voltage is obtained by the modulation of an alternating voltage by two modulators as in the parent Specification and in which a switch element controlling the welding current is adapted for mechanical connection to one of the modulators, is modified by the provision of a second switch element mechanically coupled to the first which controls the flow of a number of current impulses at a predetermined time after the main weld for the purpose of annealing or afterwelding. In Fig. 1, the secondary windings of two modulators 1 and 2 are connected in series with a feeding alternating current network 3 to supply the primary of a welding transformer 6 through a switching element 4. In parallel with this switching element is a circuit 7 comprising a choke 9 and a second switching element 8 in series. The two switching elements are mechanically coupled together and arranged so that at a predetermined time after the operation of switching element 4 to effect the main weld, switching element 8 operates to pass further current. The choke may be supplemented or replaced by a resistance, while in a modification, Fig. 2 (not shown), it is replaced by an autotransformer. Any of these devices may be variable and the auto-transformer may be arranged to supply an increased or decreased voltage to the welding transformer. Specification 508,200 is referred to.
Patent GB-830564-A (GB)
Title: Improved control device for vehicle suspension
IPC: B60G17/052
Filed: 1957-10-18
Abstract: 830,564. Adjusting body height. FIRESTONE TIRE & RUBBER CO. Oct. 18, 1957 [Oct. 19, 1956], No. 32574/57. Class 108(2) In a control valve for a constant clearance height pneumatic suspension system inlet and outlet valves 73, 84, Fig. 5, are urged by springs 71, 83 to close orifices 70, 82. As the static load on the vehicle is increased a torsion bar 50, Fig. 4, is turned by a control rod 30, to rotate a plug 55. Plug 55 rotates anti-clockwise as seen in Fig. 5 and turns a bar 58 which opens the inlet valve 73 by pushing on a stem 75 to admit air under pressure to the air spring bellows. Movement of the rod 58 is hydraulically damped by a piston 90 connected to the rod 58 by members 93. An alternative form of damping using friction is shown in Fig. 6. Holes 145 prevent air from being trapped behind cups 143. If the static load is decreased all the parts move in the reverse direction and the outlet valve 83 is opened to allow air to pass to the atmosphere from the air spring bellows. In the embodiment shown in Fig. 7, a helical spring 125 provides a resilient connection between a shaft 126, turned by the control rod 30, and a plug 128, carrying the valve actuating bar 58. Pins 138a, 138b, 140a, 140b connect the shaft 126 and the plug 128 to the spring 125. In the embodiment shown in Fig. 9 a helical spring 111 transmits torque from a control arm 110 to the valve operating bar through a member 118 connected to an arm 110 and a member 123 connected to a shaft which carries the valve operating bar. As shown in Fig. 10 the control rod 100 may be made resilient by including a compression spring 102 in its construction.
Patent GB-283570-A (GB)
Title: Improvements in or relating to apparatus for the delivery of measured quantities of liquid
IPC: B67D7/16
Filed: 1927-12-02
Abstract: 283,570. Soc. Anon. pour tous Appareillages MÚcaniques. Jan. 14, 1927, [Convention date]. Rack-and-pinion actuated pumps; disconnecting actuating mechanism; priming. -In a measuring-pump for petrol &c. means are provided to ensure that the piston 2 is not actuated until the barrel 1 and delivery pipe 9 are full of liquid. An auxiliary pump 13 draws air and liquid from the suction pipe 7 and forces them into the barrel 1 through the valve 3 in the piston 2. The air escapes through the pipe 9 and a float controlled port 30, and the pump 18 operates until the liquid rises through the pipe 9 and lifts the float 28 to close the port 30. The pressure in the pump then rises and moves a diaphragm 25 in the chamber 24. The diaphragm is connected to an arm 22 pivoted to the axis of a gear-wheel 20 and carrying a gear-wheel 23 meshing with the wheel 26. When the diaphragm is moved by the liquid pressure, it forces the wheel 23 into mesh with a pinion 6 gearing with a rack 5 on the piston rod 4, so that the piston 2 is raised to deliver the liquid through a valve 10 to the discharge pipe 11. An air inlet valve 12 enables the liquid in the pipe 11 to be discharged after the piston 2 has stopped. At the end of the delivery, the pressure in the chamber 24 is relieved and the diaphragm is returned by a spring 26, disengaging the wheel 23 from the pinion 6 and allowing the piston 2 to descend by gravity. The wheel 20 is driven by a crank 21 and drives the pump 13 through a pin 19 and rod 18. In the form shown in Fig. 3 an air pump 32 removes air from the pump 1 and pipe 9 through a pipe 35, so that liquid is drawn into the barrel 1 and pipe 9 through the valves 8, 3, and lifts the float 28 to close the port 30. The suction in the pipe 35 and chamber 24 then increases, and the diaphragm 25 brings the wheel 23 into mesh with the pinion 6. The movement of the diaphragm opens an air valve 37 through links 38, 40, and admits air to the pump 32. The valve 37 may be a rotatable three-way valve.
Patent GB-381001-A (GB)
Title: Improvements in wear compensating bearings
IPC: B60G11/12
Filed: 1931-11-24
Abstract: 381,001. Bearings. TRYON, W. A., West Church Street, Elmira, New York, U.S.A. Nov. 24, 1931, No. 32584. Convention date, May 14. [Class 12 (i).] Cone bearings.- A wear-compensating bearing or hinge comprises bearing elements 2, 2<1> slidingly carried in openings 4, 4<1> in lugs L, L<1> on one of the parts to be connected together, both elements having bearing surfaces which are maintained in constant co-operation with bearing surfaces on the other, S, of the parts to be connected. The elements 2, 21 may have tapered bearing surfaces 5, 51 co-operating with bearing surfaces on a bushing 1 in the part S, and which are maintained in close contact by a spring 15 bearing against a collar 16, inside the element 2, and the head 11 of a bolt 10 which holds the assembly together.. If the bolt 10 is large enough, it may be provided at one end with a nipple by which lubricant may be injected into the bore 7 of the bushing 1. Alternatively, a spring or lock washer 14 may be provided, as shown, under the nut 13 of the bolt 10 to which a nipple 25 may be attached, The interior of the co-operating bearing surfaces may have oil grooves communicating with the bore 7.
Patent GB-639620-A (GB)
Title: An improved booking-office window
IPC: E06B7/30
Filed: 1947-12-10
Abstract: 639,620. Windows. JOLFRE, R. C. Dec. 10, 1947, No. 32616. Convention date, Jan. 11. [Class 20 (iii)] A cashier's germ-proof partition comprises a flexible transparent diaphragm stretched on a frame and located between two foraminous sheets of rigid transparent material spaced therefrom so as to allow the diaphragm to vibrate. As shown a frame 6, bolted, riveted &c. to a ring 7 secured to a glass pane 8, holds the two foraminous sheets 3, 4 spaced from the flexible diaphragm 1 on its frame 2 ; the frame 6 may be integral with the frame 2, and the device may be elongated vertically, e.g. elliptical, to accommodate persons of different height.
Patent GB-249787-A (GB)
Title: Improvements in and relating to cinematograph projectors
IPC: G03B21/18
Filed: 1925-12-24
Abstract: 249,787. Butcher & Sons, Ltd., W., and Joseph, I. Dec. 24, 1925. Kinematograph appa.ratus. - A motordriven projector is completely enclosed in a metal casing, and any door of the casing capable of being opened from the outside operates a switch to stop the motor and a switch to cut off or reduce the supply of current to the lamp. As shown, the casing comprises doors 2, 3 on one side, and two doors on the opposite side carried by spring hinges. The doors 3 may be opened from the outside, and carries contact springs 36. 37, respectively provided in the motor and lamp circuits and engaging contacts 38, 39. The other doors are capable of being opened from within the casing only, and lock automatically when closed. The projection opening in the front of the casing is provided with a hinged flap held open by an inflammable thread when the projector is in use, the motor 19 is covered by a shield 20, and the lamp chamber 17 has a flue 18 leading to the outside of the casing. A screen of toughened glass is provided between the lamp and the condenser. A motorcontrolling resistance 32, a main switch 31, and two switches operated by a single knob, and controlling the motor and lamp circuits, are provided on the casing. Fig. 7 shows the wiring connections between the parts referred to. A resistance 35 which is separate from the projector is included in the lamp circuit when the door 2 is open, and is short-circuited when the door is closed.
Patent GB-492848-A (GB)
Title: Improvements in flooring plates
IPC: E04F15/10
Filed: 1937-11-26
Abstract: 492,848. Flooring - plates. SCHURMANN, X. Nov. 26, 1937, Nos. 32638 and 32639. Convention dates, April 16 and July 7. [Class 87 (i)] A xylolite flooring-plate 5 is provided with a backing 6 of cement mortar, earthenware or bitumen with or without sand. Grooves 7, 9 may be formed in the rear face and edges of the backing. In the case of an earthenware backing, grooves may also be formed in its other face.
Patent GB-465618-A (GB)
Title: Improvements in or relating to apparatus for bending or creasing cardboard and similar materials
IPC: B31B50/25
Filed: 1935-11-25
Abstract: 465,618. Bending or creasing cardboard &c. VICKERS-ARMSTRONGS, Ltd., and DANIELS, F. K. Nov. 25, 1935, No. 32642. [Class 100 (ii)] Apparatus for bending or creasing cardboard and similar materials comprises a number of series of balls or rollers which engage with the board to crease it and are adapted on contact with the board to move along a predetermined path arranged so that a substantial part of the board will be operated upon simultaneously. A block 20 secured to the forked end of a bracket 10 adjustable vertically with respect to the machine frame 18 by means of a threaded member 17 has its lower faces each formed with a continuous groove 23. Plates 22 secured to the block by bolts are formed with corresponding grooves so as to constitute a channel 24 in which the rollers or balls 25 are constrained to move so as to form two surfaces engaging the work on one face thereof. Opposed to these surfaces and situated centrally thereof is a similar surface formed by balls or rollers 16 running in a closed channel 15 formed by grooves 14 in two plates 13, mounted on a bracket 11. The operative parts of the channels 24 may diverge towards one end or the channels may be situated in parallel vertical planes. Further, the plates 13 may be mounted so that the lengthwise inclination thereof may be varied. Specification 390,912 is referred to.
Patent GB-648209-A (GB)
Title: Improvements in or relating to the preparation and method of application of ceramic color vehicle compositions
IPC: C04B41/45
Filed: 1948-12-17
Abstract: 648,209. Enamels and glazes. DRAKENFELD & CO., Inc., B. F. Dec. 17, 1948, No. 32683. Convention date, Jan. 8. [Class 56] A decorative ceramic colour vehicle composition comprises a dispersion of vitrifiable glaze in a heat-liquefiable thermoplastic resin, and is solid at normal temperatures and heat liquefiable to prepare it for application to an article to be decorated, and solidifies quickly on contact with the article to permit the application of further colour without intermediate drying or heating. It is preferred to use resinous wood products and excellent results are obtained with hydrogenated wood rosin, one form of which melts at 168‹F. The melting point may be lowered by compounding with the hydrogenated rosin a hydrogenated ester of rosin, suitably the methyl ester. When this compound is tacky an amide of stearic acid may be added as a tack reducer. A suitable composition for use with the silk screen method contains equal parts by weight of the three particular ingredients given above, and is a solid resembling beeswax at room temperatures and liquifies at 85‹C. The ground ceramic colour is stirred into the heated compound which may then be used with the silk screen or squeegee process and quickly solidifies on contact with the cold article to be decorated. Several colours may be thus applied, without intermediate drying, and the article fired. To avoid premature solidification heat, as from infra red lamps, may be applied to the stencil screen. Other compositions may be used, but preferably all fuse at 100‹C or less, and must sharply reproduce the stencil design, must not affect the colour, must keep, and must volatize on firing without leaving any sensible carbon residue. The composition may also include plasticizers and levelling-off agents.
Patent GB-159861-A (GB)
Title: Improvements in and relating to the carrying and securing of air pumps upon bicyclesand like vehicles
IPC: B62J11/02
Filed: 1920-11-19
Abstract: 159,861. Mosca, A. March 5, 1920, [Convention date]. No Patent granted (Sealing fee not paid). Inflators, carrying and securing.-In means for mounting an air-pump upon bicycles and other vehicles comprising a fixed centre at one end and a movable lock-controlled bolt 2 at the other, the bolt is slidingly mounted in the lock casing and has a shoulder 2<11> adapted to be engaged by the front ends 14<1> of spring - controlled pivoted pawls or wards 14 which are releasable by the insertion and turning of a key 20. The casing comprises front and rear parts 9, 9<1> riveted together, the casing and the fixed centre being each secured to the cycle frame by a clip 6, the free end of which is held either by a nut or, as shown in Fig. 7, by the engagement of a toothed member 6<1> thereon with a sliding piece 22 pressed upward by a spring 23. The wards 14 are separated by fixed plates 17 and are pressed into operative position by a spring 16. When released from the wards the bolt is restored to inoperative position by a spring 10 connected to the casing and to a projection 11 on the bolt. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a construction wherein a locking-device of a type necessitating the use of a key for bringing the bolt into operative position may be employed. This subjectmatter does not appear in the Specification as accepted.
Patent GB-618576-A (GB)
Title: Green pigments
IPC: C09B51/00
Filed: 1946-11-05
Abstract: In the preparation of a pigment from a -nitroso-b -naphthol and an iron salt, 2-6 per cent by weight, based on the a -nitroso-b -naphthol, of a water-immiscible oleaginous liquid which is an aliphatic saturated or unsaturated alcohol containing 16-18 carbon atoms, a fatty oil, or a viscous mineral oil, is incorporated with the reaction mixture before precipitation of the pigment, the pigment is then precipitated in the absence of dispersing agents and insoluble substrates, and then recovered and dried.  Liquids specified are cetyl, oleyl, and octadecyl alcohols, and mixtures of such alcohols, e.g. of C16 and C18 unsaturated alcohols, linseed oil, cottonseed oil, olive oil, and white medicinal mineral oils.  In examples, a sodium bisulphite solution of a -nitroso-b -naphthol is mixed with (1) cottonseed oil; (2) cetyl alcohol, or (3) a mixture of C16 and C18 unsaturated alcohols, followed by treatment with ferrous sulphate and precipitation of the pigment with sodium carbonate solution.  Also in examples, a sodium bisulphite solution of a -nitroso-b -naphthol is treated first with ferrous sulphate solution, the solution is then agitated with cottonseed oil, and the pigment is precipitated with sodium carbonate.  The pigment obtained may be used to colour rubber, oil, and coating compositions.  The nitrite of the naphthol may be used instead of the sulphite, and alternative iron salts are ferric chloride and ferrous oxalate.
Patent GB-1059724-A (GB)
Title: Improved pig iron
IPC: C21C1/00
Filed: 1963-08-20
Abstract: Improved cast iron is produced by forming a furnace charge containing 10-100% by weight of a nodular pig iron having no primary kish graphite and produced by treatment at a blast furnace with a first nodularizing agent, melting the charge and forming a casting which has flaky graphite or, if a second nodularizing agent is added to the molten charge, nodular graphite.  The first and second nodularizing agents may be the same and may comprise Ca, Mg, Ce, Li, misch metal, or one or more rare earth metal fluorides mixed with a reducing agent, preferably calcium silicide; e.g. 1 1/2 % magnesium ferrosilicon containing 9.5% Mg and 40% Si may be added. Nodularizing metals may be added by sub-surface injection with inert gas.  The raw pig iron may be first melted in a cupola or electric furnace.
Patent GB-1022473-A (GB)
Title: Electro-magnetic control apparatus
IPC: H01H67/06
Filed: 1962-08-28
Abstract: 1,022,473. Washing machines. BAUKNECHT GEA G.m.b.H. Aug. 28,1962 [Aug. 30,1961], No. 32927/62. Heading D1A. [Also in Divisions A4, H2 and H3]. Control apparatus, e.g. for a washing machine, comprises a step-by-step switch mechanism RS operable by the armature of an electromagnet M the winding of which is initially excitable under the control of an electronic switch element, e.g. a cold cathode tube Ro or a transistor, supplied with an ignition voltage by main circuit means C2, R2, there being an auxiliary wind-supply circuit closed by the armature during its initial movement. A voltage source U charges capacitors C, C1 (via resistor R1 and switch contacts m3) and C2 (via resistor R2). When the voltage across capacitor C2 is sufficient to cause tube Ro to conduct, capacitor C1 starts to discharge through the tube to energize the electromagnet M. This attracts the armature A to advance RS, open contacts m3 and close contacts m1, m2. Contacts m1, m2 thus establish an energization path for electromagnet M shunting tube Ro (to complete the advance of RS) and allow capacitor C2 to discharge through resistor R3. A return spring F for armature A is provided. As a modification, m3 may be permanently closed.
Patent GB-1560685-A (GB)
Title: Internal combustion engines having ignition timing controlapparatus
IPC: F02D37/00
Filed: 1976-08-09
Abstract: A system is disclosed for controlling the ignition timing for an internal combustion engine on a vehicle. The control effected is designed to increase mileage during low exhaust emission conditions and to better control exhaust emissions under conditions tending to increase such emissions. A double acting vacuum control mechanism is indirectly responsive to engine vacuum through a control valve arrangement which selects either increased advancement or increased retardation with increased engine vacuum as a function of the operating conditions of the engine. The operating conditions of the engine which determine the selection of the control valve position are vehicle speed and the degree of steady state operation referred to as cruising conditions.