baber/WOPTO huggingface dataset:
Patent GB-398546-A (GB)
Title: Improvements in circuits for modifying the wave-form of electric signals such as telegraph signals
IPC: H03K5/01
Filed: 1932-03-18
Abstract: 398,546. Code telegraphy. STANDARD TELEPHONES & CABLES, Ltd., Connaught House, Aldwych, London.- (Assignees of Materiel Telephonique Soc. Anon. ; 46, Quai de Boulogne, Boulogne-sur- Seine, France. March 18, 1932, No. 8075. Convention date, March 21, 1931. [Classes 40 (iii) and 40 (v).] A wave-shaping device comprises a thermionic valve back-coupled through a gaseous discharge tube. Fig. 1 shows a known shaping device in which the plate circuit of valve T includes a neon or other discharge tube N together with a resistance R, resistance or choke R<1>, and batteries E, E<1>. For a given range of signal - strengths a continuously varying input at terminals 1, 2 yields a discontinuous output at terminals 3, 4. Another rectifying system is obtained, Fig. 8 (not shown), by rearranging the parts shown in Fig. 8. In a modification, Fig. 11, the input transformer Tr is in series with a resistance-capacity combination R<1>, C, the output relay L is shunted by a wave-shaping condenser C<1>, and a choke Z is provided ; the grid is coupled through resistance R to the plate circuit which includes the discharge tube N. The circuit may include further amplifiers, Fig. 12 (not shown), or mutual inductance, Fig. 13 (not shown), and the branch containing the tube N may be electromagnetically coupled to the choke Z and to the grid circuit, Fig. 14 (not shown). The valve T may be replaced by a push-pull pair, Fig. 15 (not shown). The resistance R in any of the above arrangements may be replaced by the plate-filament path of a thermionic valve. According to the Specification as open to inspection under Sect. 91, two systems of the kind shown in Fig. 1 may be used in cascade, Fig. 7, cancelled, (not shown) for squaring wave-forms, one tube N being active when the other is extinguished. The input connection 2 may be tapped off the resistance R, R<1>, as shown in Fig. 8. 7, so that the grid bias is affected by the current through the tube N. Fig. 9 (cancelled) shows a rectifying system. Alternating-current impulses applied to terminals 1, 2, cause the tube N to strike but are prevented by the filter F from reaching, the valve T. Signals determined by the striking and extinction of the tube N are passed on to the valve. Two three-electrode discharge tubes N, N<1> may be coupled, as shown in Fig. 19 (cancelled) so that when alternating voltage of any wave-form is applied to the input terminals 1, 2, the tubes N, N<1>, are alternately opened and closed. This subject-matter does not appear in the Specification as accepted.
Patent GB-609460-A (GB)
Title: Improvements in or relating to wall construction
IPC: E04B2/68
Filed: 1946-03-15
Abstract: 609,460. Walls. HOENIG, E. March 15, 1946, No. 8075. [Classes 20(iv) and 87(i)] In a wall comprising vertical elements 1 such as slabs and window and door frames, having angular or channel shaped side ends 2 formed by flanges projecting out of the plane of the slab in such a way that, at the junction of adjacent slabs or of a slab and a window or door frame, a vertical cavity closed on all sides is formed for the reception of a cast in situ stanchion, said side ends are provided with a recess or recesses 3 which house a projection or projections 7 on horizontal elements 4 such as beams, window sills, cornices, &c., having apertures 6 which register with said cavities. In the form shown the horizontal element is as described in Specification 591,446 having rebates around the apertures 6, and the projections 7 are arranged across said rebates. Alternatively, the projections may be formed by the remainder left by rebates along the edges of the horizontal elements. The recesses 3 and projections 7 may be of rectangular, triangular, semi-hexagonal, semi-circular or semi-elliptical form
Patent GB-138223-A (GB)
Title: Improvements in devices for facilitating the turning of the pages of sheet music, music books and other books
IPC: B42D9/08
Filed: 1919-04-01
Abstract: 138,223. Shinton, J. T. April 1, 1919. Tabs.-For facilitating the turning of pages of sheet music and the like, a tab is temporarily or permanently attached to each page, each having pivoted thereto a tag, loop, or handle, which can either lie in the plane of the page or be turned up at right-angles thereto to preserve a space between its page and the page overlying it. Fig. 1 shows a wire paper clip a which can be slipped over the edge of the page, and carries a metal tag b which can be turned up or down, and which may be constructed so as to maintain either position. For permanent attachment, an adhesive fabric label d, Fig. 4, may bo used, on the underside of which is a spring plate e having a tongue e<2>, or a tubular socket, for engaging the squared ends of a wire loop b. The plate e may have engaging teeth to secure it to the label. The label may be replaced by a second plate placed underneath the page, and having teeth passing through the page and through perforations in the upper plate.
Patent GB-751524-A (GB)
Title: -e-acyl lysines and their production
IPC: A23K20/142
Filed: 1954-03-19
Abstract: The Specification comprises (1) the production of e -acyl-lysines by saponifying caprolactam, acylating the resulting e -aminocaproic acid, chlorinating the e -acylaminocaproic acid and treating the chlorinated acid with ammonia, and (2) e -acyl-lysines of the formula R - CO - NH - (CH2)4 - CH(NH2)- COOH where R is an alkyl group of 2 or more carbon atoms.  The chlorination step is carried out with sulphuryl chloride or a mixture thereof with thionyl chloride.  The amination is preferably effected in the absence of iron, using an ammonia solution containing at least 50 per cent by weight of ammonia.  Examples are given of the process using as acylating agents acetic anhydride, butyryl chloride, a -chlorobutyryl chloride, lauroyl chloride and adipoyl chloride, the corresponding N-acyl-lysines being recovered; the product from chlorobutyryl chloride is however aminobutyryl-lysine.ALSO:e -Acyl-lysines are used as food additives for cattle and poultry.  A graph shows comparative results of the weight of chickens fed on vegetable protein (1) alone, (2) with methionine, and (3) with e -butyryl-lysine.  Other compounds mentioned are e -acetyl, e -adipoyl, e -lauroyl and e -aminobutyryl-lysines.
Patent GB-880592-A (GB)
Title: Improvements in or relating to pyridine carboxylic acid preparation
Filed: 1960-03-08
Abstract: Pyridine dicarboxylic acids are prepared by contacting quinoline, isoquinoline, and nuclear substituted derivatives thereof, e.g. quinaldine, lepidine, carbostyril, 8-hydroxyquinoline and 2-aminoquinoline, with ozone, in a liquid medium containing a mineral acid, and heating the mixture in the presence of an oxidising agent at a temperature below the boiling point of the mixture.  The product is concentrated by distillation, and the acid is filtered and purified.  The di-carboxylic acid may be decarboxylated, e.g. by heating, to the mono-acid.  The mineral acid which may be nitric, sulphuric, phosphoric, chlorosulphonic, and fluosulphonic is present in an amount of at least one mole of mineral acid per mole of quinoline, and nitric acid which may also be the oxidising agent is preferred.  A stabilising agent such as acetic acid may also be present and the ozone may be in air or oxygen.  Oxidising agents include nitric acid, hydrogen peroxide, chromic acid, potassium permanganate and perchlorate and the reaction may be batchwise or continuous.  Examples describe the preparation of quinolinic acid which may be decarboxylated to nicotinic acid from quinoline, cinchomeronic acid from isoquinoline, and 6-methylquinolinic acid from 2-methylquinoline.
Patent GB-215905-A (GB)
Title: Improvements in and connected with bag and sack filling apparatus
IPC: B65B1/28
Filed: 1923-03-22
Abstract: 215,905. Avery, Ltd., W. & T., and Johnson, S. H. March 22, 1923. Filling flour &c. into sacks or bags.-Relates to filling apparatus for sacks and bags in which means are provided for allowing the escape of air from the sack during filling. The inlet funnel or hopper 3 is divided into two unequal parts 4, 5 by a partition 6 with an extension 8 which may be hinged at 9, and which extends downwardly into the mouth of the sack 4. An additional partition 12 may be disposed above the partition 6. The lower cylindrical portion 10 of the funnel is flanged at 14 to facilitate attachment of the sack. In operation, the flour &c. is directed through the larger portion 4 of the funnel, and the air escapes through the portion 5. In machines with a rotatable bag or sack holder, the hinged extension 8 is turned into the position indicated in broken lines during rotation from one sack-filling position to another.
Patent GB-494413-A (GB)
Title: Improvements in or relating to the casings or cowlings of aircraft engines
IPC: B64D33/10
Filed: 1937-03-19
Abstract: 494,413. Aero - engine cowlings. SCOTT, B. D. March 19, 1937, No. 8191. [Class 4] A cowling for an aero-engine which projects forward from an aircraft wing is so arranged that sections through cowling and wing in planes parallel to the plane of symmetry of the aircraft are aerofoil sections and the upper surface of the cowling is faired into the wing at the trailing edge. The leading edge of the cowling is swept back at one or both sides as shown in Fig. 1. Cooling air enters at apertures 15 and escapes over the leading edge at 19 and the ring undersurface at 20.
Patent GB-558748-A (GB)
Title: Improvements in double sash windows
IPC: B60J1/00
Filed: 1942-06-16
Abstract: 558,748. Preventing condensation on windows or windscreens. HUNTER SASH CO., Inc. June 16, 1942, No. 8225. Convention date, March 20. [Class 20 (iii)] The frame of a double sash window is hollow, and so arranged that a heated fluid may be circulated through the frame and through the space between the panes, to prevent the formation of ice. A heated liquid such as ethylene glycol or its compounds is suitable for use, and such a liquid may be diluted with water. The outer pane 2 is held against bevelled edges 20 of the outer wall 8 of the frame 1 by a resilient strip 25 which is supported by a flange 13 on a partition wall 10. The inner pane 3 is pressed against spacing strips 31 by a resilient strip 27 supported by the inturned edge 12 of the periphery 9 of the frame. The liquid is circulated by a pump P through a heater H and through the lower half of channel 35, openings 33 in flange 16, passages between the spacing strips 31, the space between the panes, and out through similar openings to the upper half of channel 35, and through a return pipe 48, to the heater. Perforated partitions 40, 41 divide the channel 35 into its upper and lower parts.
Patent GB-725720-A (GB)
Title: Improvements relating to legs for furniture
Inventor: NATHAN MYER
IPC: A47B91/00
Filed: 1953-03-26
Abstract: 725,720. Furniture legs. NATHAN, Ltd., B. & I. March 23, 1954 [March 26, 1953], No. 8348/53. Addition to 690,910. Classes 52 (1). and 52 (2). An ornamental boss for furniture legs comprises vertical bars 2 secured to a squared part 1 of the leg, top and bottom reinforcing frames 4 carried in recesses 3 on the top and bottom of the bars 2 and vertical members 8 having spigots 7 engaging cut-out parts 6 of the frames 4, casing parts 9, 10 being secured respectively to frames 4 and the members 8. The boss may be circular or oval.
Patent GB-512501-A (GB)
Title: Improvements in or relating to windows
IPC: E05D15/26
Filed: 1938-03-18
Abstract: 512,501. Windows. KTEFER, J. March 18, 1938, No. 8369. [Class 20 (iii)] Relates to windows of the kind comprising a number of sashes which are hinged together and which are suspended, pivoted, and guided for sliding movement by means engaging tracks mounted in the window frame. According to the invention, each pair of sashes is fitted with upper and lower anti-friction rollers 14, 26, running in upper and lower guide channels 11, 25, and the sashes and windo,w frame are formed with vertical surfaces which contact when the sashes are in the closed position and prevent ingress of foreign matter to the channels and rollers from both the outside and inside of the window. The pivotal connections between the rollers and the sash frames lie between the outer and inner faces of the frames. In the construction shown, the rollers 14 are carried by a plate 12 formed with a pivot pin 16 which passes through an arm 19 of a plate 18 fixed to the sash 4. The arm is supported by an abutment 17 carried by the pin. The lower roller 26 is mounted on a pin 28 carried by a fitting 27 secured to the sash 4. The sashes and the window frame are stepped as shown to provide the contacting surfaces which serve completely to inclose the channels when the sashes are in the closed position. The window may comprise any number of sashes, and when three sashes only are employed the suspending means may comprise a short bar arranged between antifriction balls. Specification 490,987 is referred to.
Patent GB-1211592-A (GB)
Title: Improvements in or relating to fuel cells with an electrolyte carrying and emulsified reactant
IPC: H01M8/08
Filed: 1968-02-21
Abstract: 1,211,592. Fuel cell. SOC. GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM). 21 Feb., 1968 [24 Feb., 1967], No. 8511/68. Heading H1B. A fuel cell in which at least one gaseous or liquid reactant is used as an emulsion with the electrolyte includes an electrode comprising a conductive sheet of porous or meshed metal, the thickness of the sheet and the pore size or mesh separation being 0À1 to 1À0 mm. and is arranged so that the emulsion passes through the sheet from inlet passages for electrolyte and reactant on one edge to an opposite edge. The reactant and electrolyte inlet passages may join before opening into the electrode chamber. The totalled cross-sections of the inlets may be less than the total cross-sectional area of the electrode available for electrolyte. In a particular embodiment, Fig. 1, each cell of a battery comprises one side of each of a pair of double sided electrodes, 1, a pair of plastics spacer frames, 2, and a semi-permeable diaphragm, 3, the relative thicknesses being such that the electrodes and diaphragms touch. The electrolyte and both reactants are fed to the cells through conduits in the top perimeter of the battery and the spent reactant-electrolyte mixtures are removed from the bottom and returned to the electrolyte inlets at the top by pumps.
Patent GB-609649-A (GB)
Title: Improvements in telephonic switch apparatus
IPC: H01H50/58
Filed: 1946-03-19
Abstract: 609,649. Electromagnetic switches. COMPAGNIE GENERALE D'ELECTRICITE. March 19, 1946, No. 8552. Convention date, Oct. 23, 1941.. [Class 38 (v)] A pivoted armature A adapted to be attracted by an electromagnet E is provided with a member B which carries a number of members t for actuating moving contacts L. The members t act individually on the contacts and consist of rods hooked to or moulded in one with the member B. A construction stated in the Specification to be known, Fig. 2 (not shown), consists of rods attached at right angles to the ends of the moving contacts which are made of different lengths. The free ends of the rods abut against a plate on a member attached to the armature.
Patent GB-498447-A (GB)
Title: Improvements in or relating to insulating structures for current collectors
IPC: B60L5/16
Filed: 1938-03-21
Abstract: 498,447. Current - collectors for electric vehicles. FIRESTONE TYRE & RUBBER CO., Ltd. March 21, 1938, No. 8642. Convention date, March 19, 1937. [Class 104 (iii)] A trolly pole 27 is separated from the vehicle by resilient insulating material 21 enclosed between sleeves 18 and spindles 19 supported in a frame 14, 15 mounted on insulators 12 carried by bars 11 on the vehicle roof. Mounted on the sleeves 18 are brackets 24 supporting a plate 25 on which the pole base 26 is mounted. Rubber &c. discs 22 separate the ends of the sleeves 18 from the frame 14. Specification 403,673, [Group XXXII], is referred to.
Patent GB-694988-A (GB)
Title: Improvements in or relating to composite furniture
IPC: A47C13/00
Filed: 1951-04-16
Abstract: 694,988. Combination furniture. WYBROW, R. S. April 15, 1952 [April 16, 1951], No. 8795/51. Addition to 628,207. Class 52(iii) A cabinet structure usable as a seat, table, pair of steps, or footrest, as in the parent Specification, is provided with a drawer v. The top cover b may be omitted.
Patent GB-1182294-A (GB)
Title: Record Players.
IPC: G11B19/14
Filed: 1967-02-24
Abstract: 1,182,294. Gramophone auto-stops. BRAUN A.G. 24 Feb., 1967 [24 Feb., 1966], No. 8957/67. Heading G5R. An electric signal is generated which varies with gramophone pick-up arm movement as it enters the run-out groove to activate an electric circuit to stop the driving mechanism. A photoresistor 3 is shielded from a light bulb in the casing by a shutter 6 during play but is progressively illuminated as the arm enters the runout groove. The more rapid exposure of the photoresistor causes its resistance to fall equally rapidly, but the capacitor 12 maintains the emitter voltage so that the transistor collector current falls and a relay 7 controlling the driving mechanism is de-energized. A push-button associated with the relay 7 may originally start the mechanism. Sets of resistors 11 and capacitors 12 having different time constants, may be switched into circuit according to record speed. The photoresistor may be replaced by resistors, reactances, oscillators or Hall generators. The pick-up arm may be mounted for radial or angular movement.
Patent GB-1465673-A (GB)
Title: Display devices
IPC: G02F1/055
Filed: 1974-02-20
Abstract: 1465673 Controlling light MULLARD Ltd 20 Feb 1974 [23 Feb 1973] 8984/73 Heading G2F In a display device, one major surface of a slice of material exhibiting the transverse electro-optic effect is secured by adhesive to a transparent substrate, and the other major surface carries all the electrodes. As particularly described the electrooptic material is a lanthanum doped PZT ceramic the substrate is glass and the adhesive cures in the absence of air. The electrodes are formed by deposition of 200 A of Cr and 2000 A of Au, followed by etching to give the pattern of Fig. 4, where the common electrode is connected to a bonding pad 12 at top right of the figure, or a "star burst" array. Leads are connected to bonding pads 12 by a soft soldering process. The display is viewed between polarizers, or with a source of polarized light and an analyzer. A multi-digit display is also described.
Patent GB-472647-A (GB)
Title: Improvements in and relating to devices for fixing coiled filaments to the filament supports of incandescent electric lamps
IPC: H01K3/06
Filed: 1936-03-26
Abstract: 472,647. Supports for electric incandescent lamp filaments. BRUCKNER, G. March 26, 1936, No. 9057. [Class 39 (ii)] In a device for fixing coiled filaments to the filament supports for electric incandescent lamps, wherein bending-tools, for looping the filament-holding wires round winding mandrels provided with a slot in which the filament is located, are mounted on arms moved by mechanisms adjustably mounted on the stationary head plate of the machine, the winding- mandrels also are adjustably mounted relatively to the stationary head, so that they can be moved circumferentially with respect thereto independently of one another. In the example, the winding-mandrels 5, which are formed with upwardly open slots to receive the filament 23, are mounted on supporting-arms 6<1> secured to bases 6 carrying the mechanisms which operate the bending-arms 14 to form filament-holding loops in the parts of the radial supporting-wires co-operating with the mandrels 5. The bases 6 are adjustable circumferentially with respect to the head plate 1. The movement of the bending-arm 14 is effected by a spring-control led finger-lever 10<1> which has its free end bearing on a vertically movable annular cam 9 and operates a toothed sector 10 geared to an eccentric for producing an oscillatory movement of the arm 14 relatively to the mandrel 5. The head of the glass stem of the lamp is located in a central recess in a carrier 2 provided with slots 4 to receive the filament-supporting wires 16. The carrier 2 is mounted at the upper end of a spindle 18 arranged to be oscillated intermittently in a rotary direction. As an alternative to mounting the arms 6<1> on the. bases 6 of the bending mechanism they may be mounted independently upon the head plate 1 adjacent to the bases 6.
Patent GB-1173064-A (GB)
Title: Electrostatic Precipitator
IPC: B03C3/68
Filed: 1967-02-24
Abstract: 1,173,064. Electrostatic precipitators. SIEMENS A.G. 24 Feb., 1967 [29 March, 1966], No. 9066/67. Headings H2H and H2K. An electrostatic precipitator, normally controlled by operating valves, e.g. current or voltage through a regulator which includes controllable rectifiers has a voltage 10 representative of the electrode potential applied to a monitoring member, e.g. a Schmitt trigger circuit 11 which an electrode short circuits, triggers a self-oscillating trigger circuit, e.g. a multivibrator 12 having a period of say 0À25 secs. which periodically blocks pulses from a firing unit 5 until the short circuit disappears, or a time delay circuit 13, 14 permanently blocks the pulses through circuit 12. The regulator may include a transductor which is controlled by the rectifiers.
Patent GB-178103-A (GB)
Title: Improvements in thermostatic controls
IPC: H05B1/02
Filed: 1922-03-29
Abstract: 178,103. Spencer Thermostat Co., (Assignees of Spencer, J. A.). April 8, 1921, [Convention date]. Thermxal switches. - A device for controlling electric circuits consists of a member so designed that stresses imposed by variation in temperature are resisted until these stresses overcome the normal resistance when the member abruptly changes to a shape of opposite curvature. It may comprise a strip, bar, disc, &c. 11, Fig. 2, of two metals joined together by welding &c. and curved as shown. On reaching the critical temperature, the bar &c. suddenly takes the lower curve. The device is shown in Fig. 1 applied to an electric iron, in which the curved strip 23 is inserted in one side of the electric circuit and is supported by brackets 24, 25 secured to an insulating-base 26. The strip makes contact with a member 30 secured to this base in the other side of the circuit. On the temperature rising above a predetermined point, the curve is reversed and the circuit broken; on the temperature falling, the circuit is again closed.
Patent GB-1497234-A (GB)
Title: Composite diaphragm material
IPC: C25B13/08
Filed: 1976-03-08
Abstract: 1497234 Diaphragm brine electrolysis cell ORONZIO DE NORA IMPIANTI ELETTROCHIMICI SpA 8 March 1976 [6 March 1975] 9138/76 Heading C7B [Also in Division C3] The cathode of an electrolytic cell for brine electrolysis is provided with a diaphragm which is obtained by copolymerizing styrene and divinylbenzene in contact with an inert fibrous material e.g. asbestos in the absence of solvent and subsequently sulphonating and halogenating the resulting copolymer. The diaphragm may be formed by pulling a liquid suspension of the fibrous material/polymer composite through perforations in the cathode, or by similar treatment of a suspension of fibrous material followed by the copolymerization and after-treatment steps.
Patent GB-852893-A (GB)
Title: Improvements in or relating to photo-electric control devices
Inventor: HANCOCK LESLIE JOHN
IPC: B23Q35/40
Filed: 1956-03-26
Abstract: 852,893. Photo-electric control. HANCOCK & CO. (ENGINEERS) Ltd. March 21, 1957 [March 26, 1956], No. 9284/56. Class 40(3). In an electronic copying apparatus in which a tool, e.g. a flame cutter, on an arm 1 is moved in accordance with a pattern y by detection of light reflected therefrom on to a photo-cell 3 which is offset from the incident light beam x, errors due to this offset are eliminated by a mirror 4 which adds to the directly reflected light received by the photo-cell.