baber/WOPTO huggingface dataset:
Patent GB-839853-A (GB)
Title: Cast forming bandages
IPC: A61L15/08
Filed: 1956-06-14
Abstract: A cast-forming bandage comprises a fabric supporting a dry composition of 5-30% of uncured aminoplast resin and 95-70% of plaster of Paris, based on the total weight of the resin and plaster of Paris, and 2.5-30% of resin curing catalyst, the catalyst being dispersed in polyethylene glycol of molecular weight 5000-7000, to form globules and coating 10-40% of the area of the bandage.  The aminoplast resin, plaster of Paris, a plasticizer, a retarder or accelerator and a binder are mixed to an aqueous paste, spread on cotton gauze and dried.  The catalyst is sprayed on the resulting bandage.  The aminoplast resin chosen which may be amino-triazine formaldehyde or melamine formaldehyde, is water-soluble and water-dispersible but may be cured to a hard resistant state. Plasticizers used are glycerols, glycols or polyglycols and the retarders used are soluble citrates, phosphates or acetates.  The catalyst may be ammonium chloride in polyethylene glycol.  Binders, which are used to effect maximum adhesion of the paste to the gauze, may be polyvinyl acetate emulsions or emulsions or solutions of polymers or copolymers of vinyl chloride, vinyl acetate, acrylates, methacrylates or butadiene.  Specification 751,799 is referred to.
Patent GB-201014-A (GB)
Title: Improvements in or relating to the control of wireless amplifying apparatus
IPC: H04M1/62
Filed: 1922-07-05
Abstract: 201,014. Elwell, Ltd., C. F., and Mit tell,. B. E. G. July 5, 1922. Thermionic amplifiers and detectors; receiving sets, construction of. -Multi-valve receiving sets are fitted with plug-in switches of the telephone jack type so arranged that, as the plate circuit is broken to admit the telephone, the filament circuit is made and lights the valve. The arrangement is such that normally all the filaments are dead and the insertion of the telephone in any particular valve lights up that particular valve together with all the valves between it and the aerial. The circuit arrangement for a two-valve set is shown in Fig. 3, whilst a two-warp jack is shown in Fig. 4. As the telephone plug H is inserted through the socket f<3>, the blade f<5> is separated from the blade f<6>, so breaking the plate circuit, and simultaneously the blade f<8> is lifted, through the block f<11>, away from the blade f<9> and into contact with the blade f, so throwing the filament of the valve A<3> across the low-tension battery through the leads E<1>, E'. The end plug F', Fig. 3, of any set is of a simpler form, the filament circuit being completed by the one-way movement of the blade f<10> into contacts with the blade f.
Patent GB-1108693-A (GB)
Title: Improvements in or relating to am detector circuits
IPC: H03D1/10
Filed: 1965-05-04
Abstract: 1,108,693. Detector circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. May 4, 1965 [May 9, 1964], No.18620/65. Headings H3Q and H3T. In an AM detector circuit for a radio receiver direct current derived from the detector rectifier 2 is applied to a semi-conductor diode 5 so as to vary its impedance with applied signal and provide a gain controlled output for an A. F. transistor 7 and the diode and transistor are poled in such a way that distortion due to the curvatures of their characteristic curves tend to be mutually cancelling. Variable resistor 11 provides manual volume control. In alternative arrangements Figs. 2, 3,4, (not shown), capacitor 3 and detector diode 2 are interchanged, the emitter resistor decoupling capacitor is removed, the output from diode 5 then being connected directly to the emitter electrode and a common base amplifier may succeed the detector. In a further modification Fig. 5 (not shown), resistor 4, which forms a potential divider with diode 5, is removed and the input to the detector circuit is arranged to have a large internal impedance by connecting a capacitor (13) in series between the I. F. output and the detector diode or by arranging the I. F. coils to have loose inductive coupling, M, Fig. 6 (not shown). In further circuits Figs. 7-9 (not shown), a PNP transistor is arranged in common emitter or common base mode between the detector output and the diode 5 which is connected to an A.F. amplifying NPN transistor so that an A. G. C. voltage may be obtained from the interposed PNP transistor.
Patent GB-595900-A (GB)
Title: Improvements in and relating to holders for double ended electric lamps
IPC: H01R33/08
Filed: 1945-07-21
Abstract: 595,900. Lamp-holders. CRABTREE & CO., Ltd., J. A., and MORGAN, R. W. July 21, 1945, No. 18744. [Class 38 (i)] A socket for a two-pin tubular lamp is formed of insulating material and consists of a base a, in the face of which is formed a vertical slot b, opening into a triangular space c having a short slot d at its upper apex. Contact blades f, f<1>, having their lower ends shaped to engage the lamp pins, and fitted at their upper ends with terminals and nuts to secure conductors to them, may be introduced through an extended opening i in the side of the base and are positioned between projections i<1> which allow flexible movement to the pinengaging ends of the contacts. The opening in the side of the base is closed by a screwattached cover k. On introduction of the pins of a lamp, the upper pin el enters the slot d, and the lower pin is swung laterally to one side in the triangular space, the positions of the pins being shown at e. The lamp is then lowered, and the lower pin e<2> seats against its contact f<1>, while the upper pin e<3> seats against contact f on rotation of the lamp about e<2>. In a modification (not shown), the triangular space contains guiding segments, the slot at the upper apex is reduced in length, while in the engaged position the pins rest in recesses at the ends of the base of the triangular space.
Patent GB-842526-A (GB)
Title: Freight-covering structures for freight-carrying
IPC: B60J7/12
Filed: 1958-06-13
Abstract: 842,526. Covers for vehicles. GROTH, O. I., CARLSON, S. H., and CARLSON, K. A. I. June 13, 1958 [June 19, 1957], No. 18961/58. Classes 103(2) and 103(4). A covering structure comprising side walls 2, Fig. 2, roof 3, floor 4 and end wall 5 is mounted on a base-frame of a railway truck. A flexible cover 6 is drawn to or withdrawn from beneath the roof 3 over an unobstructed opening extending over a portion of the roof and opposite the end wall 5 by means of wires 8, 9, to facilitate loading and unloading. The side portions of the cover 6 are each guided in grooves 11, Fig. 4, formed from an angle-iron 14 secured to the inside of side walls 2 and an angle-iron 15 with one flange 16 engaging the outside of wall 2 and another flange 17 extending perpendicularly within the wall 2. Shaped sliding blocks 18, Fig. 5, run in the grooves 11 and are secured to each end of rigid bars 19 supporting the cover 6 and extending transversely across the opening to take up transverse tensile forces between the side walls. Reinforcing strips 23 in the shape of yokes are secured to the blocks and riveted at 24 to the bars 19. Protective strips of rubber and metal 25, 26 are secured to flange 17 to cover the groove 11 when the cover is withdrawn to prevent water or obstructions from entering. In a modification, the front end of cover 6, Fig. 8, is secured to an endless chain 9<SP>1</SP> which is led over wheels 10, 27, 28 and enclosed by a shield 29. A portion of the chain runs on a ridge projecting into the groove and the sliding blocks rest on the upper side of the chain.
Patent GB-166541-A (GB)
Title: Process and apparatus for purifying hydrogen
IPC: C01B3/58
Filed: 1921-07-13
Abstract: 166,541. Deutsche Gl³hfadenfabrik, R. Kurtz & Dr. Ing. P. Schwarzkopf, Ges., (Assignees of Schwarzkopf, P.). July 13, 1920, [Convention date]. Hydrogen is freed from contained carbon monoxide by passage over finely divided incandescent molybdenum, or tungsten or other similar metal, with a high melting point, in the same group of the periodic system. Other impurities may be first removed from the hydrogen in known ways. Electric furnaces may be used in the process with heating elements of platinum, nickel, or chrome-nickel foil adapted to operate at a temperature of 800-850‹ C. The heating chambers are furnished throughout their whole length with boat-like receptacles which occupy at least half the depth of the heating space and are filled with powdered molybdenum.
Patent GB-620407-A (GB)
Title: Power operated hydraulic pressure device
IPC: F15B17/00
Filed: 1946-06-25
Abstract: 620,407. Fluid - pressure - operated brakes. BENDIX AVIATION CORPORATION. June 25, 1946, No. 18978. Convention date, Oct. 8, 1945. [Class 103 (i)] In operating systems, particularly for brakes, comprising a power-operated hydraulic master cylinder connected to the brakes &c. and in which a passage through the master piston is controlled by a valve which is opened as the piston reaches the retracted position, the piston is positively retracted by the power device and a stop against which abuts first a member carried by the piston to open the valve and then the piston itself, is resilient to permit continued and final movement of the piston with the power device. A system such as described in Specification 550,450 is shown and comprises a master cylinder 14 connected at 48 to the brake pipe-lines of a vehicle and having a piston 38 connected to a piston 16, the chambers 20, 22 of which are normally both subject to the vacuum in the engine manifold. A manually-operated master cylinder connected at 46 operates by a piston 90 a control valve for the piston 16. The piston chamber 20 is connected to valve chamber 26 by pipe 24, and thus normally through valve 94 and chamber 96 to the vacuum source. When pressure is applied by the manual master cylinder to piston 90, the seat 92 engages the valve 94 and opens the valve 100, thereby admitting air to chamber 26 and chamber 20 to move piston 16 to the right. The piston-rod 50 is connected by a pin-and-slot 54 to the piston 38, thus permitting the rod to abut on a plate 57 for driving the piston outwardly. Normally, a ball-valve 56 is held off its seat on the piston to leave open a passage 44 through the piston by which the system forward of the piston is connected to the manual master cylinder and the reservoir of that cylinder. A member 66 slidable in the piston has a forked part 68 which normally abuts on a plate 80 to unseat the valve 56. The plate 80 is movable rearwardly against the pressure of a spring 76. When the manual master cylinder is operated, liquid is at first forced thereby directly through passage 44 to initiate the application of the brakes, prior to movement of the piston 38 by the piston 16 which causes the valve 56 to seat. In the release action, the piston 38 is positively retracted by the spring 30 acting through the piston 16 and the pin 54. As the pistons move to the final position, the plate 80 is engaged first by the member 66, 68, then by the piston 38, the spring 76 being compressed as the piston 16 is stopped by the contact of a projection 36 thereon with the casing 12. The pin 54 thus takes only the stress of the spring 76 and not that of the stronger spring 30.
Patent GB-147042-A (GB)
Title: Improvements in wireless receiving systems
IPC: H04B1/16
Filed: 1920-07-06
Abstract: 147,042. Armstrong, E. H. Oct. 29, 1913, [Convention date]. Thermionic detectors and relays.-In a receiving system employing a thermionic amplifying and detecting valve, the plate and grid circuits of the valve are. coupled together so as to increase the effect by transferring energy from the plate circuit to the grid circuit. Both circuits are tuned to the frequency of the incoming waves. The coupling may be by means of an inductance L<2>, Fig. 5, common to the two circuits, or the telephone R may be connected in this position for the same purpose, or an auto-transformer may be used, as at T, Fig. 1, or a transformer with separate coils in the plate and grid circuits. When a train of oscillations is received, a charge is built up in the condenser C<1> in the grid circuit, and the reaction of the plate circuit through the inductance L<2> or transformer T, &c. charges the condenser C<1> in the same sense. The condensers C<5>, C<6>, Fig. 1, serve to by-pass the oscillations in the plate and grid circuits round the transformer T and telephone R. When the coupling between the circuits consists merely of the telephone R, the capacity of the cord connexions is sufficient for this purpose. The capacity elements in the common portion of the plate and grid circuits afford an additional means of coupling. The condenser C<3>, Fig. 1, serves in conjunction with the inductance L<1> for tuning the plate circuit, but is only necessary in the case of long waves, the distributed capacity of the inductance L<1> being sufficient when the wave-length is less than 2000 metres. The condenser C<2> is stated to prevent buzzing in the telephone.
Patent GB-630044-A (GB)
Title: Improvements in or relating to aircraft wings
IPC: B64C3/54
Filed: 1947-07-16
Abstract: 630,044. Variable-area wings. MAKHONINE, J. July 16, 1947, No. 19023. Convention date, Oct. 15, 1945. [Class 4] A variable-area wing comprises a fixed centre portion 1 with spars 2, and end portions with spars 3, 4 movable between the centre spars 2, the end portions of the wing consisting of a series of telescopic aerofoil-shaped members 6. The movable spars 3, 4 may be in alignment with each other, or offset to lie on opposite sides of the respective fixed spars 2. The outboard ends of the spars 3, 4 are connected to wing-tip sections 5.
Patent GB-168479-A (GB)
Title: Improvements in process and apparatus for electrostatic separation of finely divideddiscrete material
IPC: B03C7/00
Filed: 1920-07-07
Abstract: In the electrostatic separation of finely-divided material such as metal-bearing ores, dispersion of dust is prevented by the provision in the separator of spark gaps connected to a transformer.  The spark discharge is stated to cause the dust particles to be attracted towards each other.
Patent GB-1078290-A (GB)
Title: An improved distance piece for the reinforcement in reinforced concrete structures
IPC: E04C5/20
Filed: 1966-05-02
Abstract: 1,078,290. Reinforcement spacers. 1. SCHWACHULA [trading as INGEBORG SCHWACHULA KOMM GES]. May 2, 1966 [May 15, 1965], No. 19163/66. Heading E1W. A spacer for reinforcements invertible to provide different spacing distances comprises, a cylindrical or frusto-conical shell 1 stiffened by a diametrical bridge piece 4, a diametrically opposed pair of recesses 2 in one end in line with the bridge piece 4 and a diametric-  ally opposed pair of recesses 3 in the other end at right angles to the bridge piece 4. The edge 4A of the bridge piece is in line with the roots of the shallower recesses 2 and the other edge of the bridge piece has a recess 5 of the same depth as the deeper recesses 3. The spacer may be injection moulded in synthetic plastics material.
Patent GB-383975-A (GB)
Title: Improvements in or relating to locks
IPC: E05B63/00
Filed: 1931-07-03
Abstract: 383,975. Door fastenings and locks. FREEDLAND, I., Earlston House, Upper Park Road, Broughton, Manchester. July 3, 1931, No. 19166. [Class 44.] In a fastening particularly intended to effect a tight-closure of doors to prevent warping, the bolt b, when shot, rides over a ramp plate D on the door post or let into the edge thereof. The look case is secured to the inner face of, or let into, the door and the bolt is shot or withdrawn by a pin c on an arm rotatable by an outside depending handle c<1>. The pin co-operates with a slot b<1> in the bolt leading to an elongated aperture b<2> provided to allow sliding movement of the bolt over the handle spindle. The pin and bolt are retained in their extreme positions by a spring having arms c<2>, c<3>, one or other of which bears against the pin. The bolt may be locked by a pivoted detent having a projection e<1> adapted to enter the slot b<1> in the bolt, and raised to free the bolt by a cam F rotatable by a key G which has a pin movable along an arcuate slot in the back plate of the lock case and engaging one or other of two holes f<2> in the cam.
Patent GB-682812-A (GB)
Title: Improvements in or connected with brushes
Inventor: ADDIS ROBERT
IPC: B29C45/26
Filed: 1950-08-01
Abstract: 682,812. Combs. ADDIS, Ltd. June 20, 1951 [Aug. 1, 1950], No. 19174/50. Class 131 [Also in Groups V and XXIII] The back of a toilet brush is formed of plastic and a flat slot 3 tapering towards one end is formed during manufacture through the back in which a tapered comb can be accommodated.
Patent GB-1365914-A (GB)
Title: Transistor circuits for performing gating operations
IPC: H03K17/60
Filed: 1971-06-07
Abstract: 1365914 Transistor gating circuits SONY CORP 7 June 1971 [9 June 1970 (2) 12 June 1970] 19258/71 Heading H3T A gating circuit for a transmission path 13, 16 includes a shunt transistor 15 biased at its base by a constant current which is stabilized by a diode 20 and one of its collector and emitter electrodes is biased in a direction which prevents conduction when the transistor is switched off. In the circuit shown the signal is applied to the path via an emitter follower 26 and equal bias voltages are applied via emitter followers 27 and 26 to both emitter and collector. The voltages being equal, offset is reduced and being such as to reverse bias collector and emitter junctions, they prevent the gating transistor from becoming conductive for negative signals. The voltage bias is derived from a stabilizing circuit including transistor 25. The gate is opened by applying a pulse to the base of transistor 18 to remove the current bias from the base of the gating transistor 15. In an alternative circuit (Fig. 1, not shown) the circuit B is replaced by a bias battery (22) connected between terminal 12 and earth and a resistor connected between terminals 11 and 12. The Specification also describes arrangements comprising a pair of such gates opened alternately and the subject matter of divisional Specification 1,365,915.
Patent GB-572357-A (GB)
Title: Adjustable measuring and/or gauge blocks and adjustable parallels and/or adjustable laps
IPC: G01B3/30
Filed: 1944-02-08
Abstract: 572,357. Gauges. STAINTON, D. E. Feb. 8, 1944, No. 19337. Divided out of 564,065. [Class 106 (ii)] A gauge comprising a pair of elements having parallel gauging faces and surfaces inclined thereto for longitudinal adjustment to vary the distance between the faces, is provided with means for creating a force to draw the elements together and lock or maintain them in adjusted position. The gauge as shown in Figs. 2, 3 and 4, comprises an upper element 1 with a centrally located groove 2 in which a tongue 3 is secured, and a lower element 6 with an undercut, circular or dovetail groove 7 to provide bearing surfaces for the tongue 3. The tongue 3 is formed with a transverse hole 10 into which extends a longitudinal bore 12. The bore is tapped at its outer end and receives a screwed plunger 13 formed with a cone-point 14 to seat between two balls 11 located in the transverse hole. By screwing in the plunger the balls are moved outwardly to press on the walls of the groove 7. The upper element is provided with a facet 15 and is provided with a scale on its face to cooperate with an adjustable zero index plate 17. Instead of a positive thrust, a resilient thrust may be employed by forming the plunger with a collar on which presses a screw adjusted by a grub screw. In a modification, Fig. 6, the locking action is obtained by eccentric means. In this case the tongue 24 on the upper element is formed with apertured bosses 25 serving as. bearings for a spindle 26 having an eccentric boss 27 on which a roller 28 is mounted. Another modification, Fig. 8, has the eccentric boss 32 arranged transversely of the gauge. In addition the tongue 36 has serrations 42 that cooperate with a spring-controlled sliding pin 43 which serves to locate the elements in a manner similar to that described in Specification 564,065.
Patent GB-495494-A (GB)
Title: Improvements in apparatus for displaying advertisements
IPC: G09F11/00
Filed: 1937-07-13
Abstract: 495,494. Displaying. SANDOR, S., and SANDOR, F. E. L. July 13, 1937, No. 19382. [Class 3 (i)] A plurality of independent display panels are successively raised into viewing position by fluid pressure, with, in a modification, alternative selective control by manually-operated keys. Each panel 6 is supported by chains 7, 7a passing over pulleys 8 and attached to counter-weights 10, 10a. Each counter-weight 10 forms a piston sliding in a cylinder 11 to which air is admitted from a compressor reservoir 14 through a valve block 12. This block contains piston-valves 27 which admit air to the cylinders 11 to raise the weight 10 and keep the panel out of sight, or which release the air through ports 30 to allow the panel to rise into view. The valves 27 are spring- controlled at 31, 32 and are moved by pushers 33 bearing on cams 26 fixed on a shaft 25 rotated through reduction gearing and a belt 19 from the compressor shaft. Fig. 7 shows the arrangement when selective means are added. The cam-shaft 25 is carried on brackets 37 which are held by an electromagnet 38 in the position in which the cams act on the valve rods 33. On pressing any one of the buttons 40, however, the magnet 38 is de-energized and the cam-shaft floats away into inoperative position. The button then actuates the selected valve through a bell-crank 41 and rod 33a. The panels 6 may display matter on two levels, and means are then provided for bringing either part of the panel into view selectively or automatically. Specification 484,203 is referred to.
Patent GB-364529-A (GB)
Title: Process for the production of white opaque glazes and enamels
IPC: F02K7/00
Filed: 1930-06-25
Abstract: 364,529. Enamels; glazes. KREIDL, I.; 5, Sebastian Kohlgasse, Vienna. June 25, 1930, No. 19391. Convention date, Aug. 8, 1929. [Class 56.] In the production of white opaque enamels and glazes by incorporating in the enamel slip a substance which develops gas bubbles on firing, the number, size, and distribution of the gas bubbles evolved, and thus the resulting opacity, are controlled by varying the grain size and/or absorbent capacity of the clay, or other material used for adsorbing the gas-evolving agent, by means of peptization, coagulation, or colloid grinding. Diminishing the grain size by peptization or colloid grinding reduces the size of the gas bubbles, while increase of grain size by coagulation increases the size of the gas bubbles. The modification of grain size &c. may be effected on the adsorbent or on the adsorption complex prior to adding these to the enamel slip. Suitable adsorbents are clay, kaolin, glass frit, etc.; as peptizating-agents for the clay mineral or metallic acids or salts, such as hydrochloric acid, chlorides, tungstic acid, or tungstates, are suitable ; alkaline-earth borates or carbonates are suitable coagulants.. The gas-evolving agents. may be organic substances, such as dyestuffs, fatty acids or their salts, aromatic carboxylic acids or .boric salts, or naphthols, or inorganic substances, such as nitrates. In an example, Methylene Blue is employed as gas-evolving agent, adsorbed in clay, with sodium chloride as peptizating-agent. Specifications 297,724, 297,725, and 297,737, [all in Class 56, Glass], are referred to. The Specification as open to inspection under Sect. 91 (3) (a) relates generally to the use of substances producing opacity by gas evolution, and to modification of the effect by varying the nature or amount of the gas-evolving agent, or the nature or amount or surface of the adsorbent therefor; additional examples are given of the use of (1) clay, alpha-naphthol, and sodium perchlorate; (2) clay Thiazole Yellow, borax, and potassium perchlorate. This subject-matter does not appear in the Specification as accepted.