baber/WOPTO huggingface dataset:
Patent GB-850816-A (GB)
Title: Improvements in control systems, and especially automatic pilots
IPC: G05D1/00
Filed: 1956-10-29
Abstract: 850,816. Automatic control systems. MINNEAPOLIS-HONEYWELL REGULATOR CO. Oct. 29, 1956 [Oct. 28, 1955], No. 33012/56. Class 38 (4). In a servomotor system controlling a variable, two signsls representative of error due to change in the value of the variable are continuously compared and one or other of the signals is arranged to control the servomotor according to their relative magnitudes. In Fig. 3, combined alternating current signals from potentiometer pick-offs 58, 76, respectively associated with a rate of pitch gyro 22 and the pitch axis of a gyro vertical 19, are normally applied through an amplifier 15 to control a servomotor 16 operating the elevators of an aircraft through reversing clutches to maintain a desired pitch attitude. Follow-up signals are applied to the input of amplifier 15 from a potentiometer 43 operated by servomotor 16 and the pitch attitude maintained is determined by signals applied to the input of amplifier 15 from a potentiometer 81 operated by a manual controller or altimeter 20. Overriding control is provided by signals from pick-off 104 of a vertical accelerometer 27 so that if acceleration in either sense, corresponding to the settings of bias potentiometers 110, 113, is exceeded, an excess acceleration signal is applied to the cathode of one input valve of an amplifier 32. The sum of the signals applied to amplifier 15 are also applied to the grids of the input valves of amplifier 32 and the arrangement is such that if the excess acceleration signal exceeds the signal applied to amplifier 15 by more than a predetermined amount one or other of channels 172, 173 of amplifier 32 causes energization of an appropriate relay 181, 186 to disconnect the normal input to amplifier 15 and substitute the excess acceleration signal to reduce acceleration. Follow-up and pitch rate signals derived from potentiometers 43, 58 are introduced into this acceleration limiting control system through a transformer 98, and the integral of these signals produced by a motor 120 operating a potentiometer 92 is also included to cancel signals from transformer 98 during persistent manoeuvres. Acceleration limit-setting potentiometers 110, 113 may be adjusted manually or in response to aircraft weight, airspeed or altitude. A device responsive to angle of attack may replace the vertical accelerometer.
Patent GB-1507717-A (GB)
Title: Benz(de)isoquinoline derivatives
IPC: C07D221/06
Filed: 1975-08-07
Abstract: 1507717 Substituted 2 - alkylene - H1 - benz- [de]isoquinoline - 1,3(2H) - diones E R SQUIBB & SONS Inc 7 Aug 1975 [28 Aug 1974] 33030/75 Heading C2C  Novel compounds of the Formula I wherein R<SP>1</SP> and R<SP>2</SP> are independently hydrogen, halogen, alkyl, alkoxy, alkylthio, nitro, cyano, amino or trifluoromethyl; A is C 1-8  alkylene and Z is one of the radicals in which R<SP>3</SP> is phenyl or phenylalkyl optionally substituted in the ring by one or more substituents selected from halogen, alkyl, alkoxy, nitro, amino, and trifluoro methyl, wherein all alkyl radicals have up to 4 carbon atoms, and pharmaceutically acceptable acid addition salts thereof, may be prepared by (1) where A is C 2-8  alkylene (a) reacting a compound II with a compound H 2 NAZ or with a compound H 2 N-A-OH to form a compound IV converting the hydroxy group to a leaving group and reacting this compound with HZ, (b) reacting an anion of a compound VII with Y<SP>1</SP>-A-Y, where Y and Y<SP>1</SP> are leaving groups selected from tosylate, methane sulphonate or halogen, to form a compound V and reacting this with HZ, or (c) reacting an anion of a compound VII with a compound Y-A-Z, or (2) where A is CH 2 , reacting a compound VII with HZ and a source of formaldehyde. Various intermediates of the Formulae IV and V are prepared. Pharmaceutical compositions of the compounds I with the usual excipients show antidepressant and anti-anxiety activity when administered orally or parenterally.
Patent GB-387075-A (GB)
Title: Improvements relating to synthetic resin moulding powders
IPC: C08L61/10
Filed: 1931-11-28
Abstract: Barium hydrate and a barium soap are added to phenol-aldehyde resin moulding powders to facilitate moulding.  Instead of the soap a substance capable of reacting with the hydrate to produce a soap may be added.  The object of the invention is the production of articles resistant to sulphuric acid.
Patent GB-635649-A (GB)
Title: Improvements in photosensitive copper glass and method of making articles thereof
IPC: C03C4/04
Filed: 1947-12-16
Abstract: 635,649. Photo-sensitive glass. CORNING GLASS WORKS. Dec. 16, 1947, No. 33147. Convention date, Dec. 8, 1943. [Class 98 (ii)] [Also in Group XXIII] Relates to the cuprous oxide photosensitive glass as described in Specification 570,111, [Group XXIII], and consists in adding not more than 0.05 per cent CeO 2  to the glass. The reducing agent in the batch may be sugar or ammonium chloride.
Patent GB-618805-A (GB)
Title: Belt and pulley driving device
IPC: F16H7/02
Filed: 1946-11-07
Abstract: 618,805. Belt gearing. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Nov. 7, 1946, No. 33180. [Class 80 (i)] A cleat-belt driving device comprises a driving pulley 10 with alternate wide and narrow grooves 15, 14 for engagement with the cleats 32, 30 on two belts 31, 29 driving pulleys 18, 27 respectively of, for example, a sewing machine. The grooves extend across the full width of the pulley and a separating member 17 is provided around the centre of the pulley to maintain the belts apart. The wide grooves 15 receive the triple cleats 32 of belt 31, whilst the narrow grooves 14 receive the single cleats 30 of belt 29, although the single cleats may also be received with clearance in the wide grooves 15.
Patent GB-993227-A (GB)
Title: Oil boom and method of storing it
IPC: E02B15/04
Filed: 1963-08-22
Abstract: 993,227. Oil booms. G. HAIM. (Neirad Industries Inc.). Aug. 22, 1963, No. 33200/63. Heading E1H. A flexible oil boom comprises a continuous plastic sheet 20 and a plurality of elongated plastic floats 24 spaced apart along the sheet edge to permit the sheet to bend on itself in accordion fashion, the upper edge of the floats being in line with extensions 30 of the sheet between adjacent floats. As shown, the sheet 20 e.g. of polyechylene has ballast weights 42 and fits into longitudinal slots in the lower surface of the floats 24 and is held there by plastic rivets. At the ends of the floats the slots are continued vertically through the floats to accommodate extensions 30 of the sheet 20. The boom may be folded for storage while floating on the water (Fig. 1 not shown).
Patent GB-758844-A (GB)
Title: Improvements in or relating to fluid valves
Inventor: OSBORNE FRANCIS ERNEST
IPC: F02K9/58
Filed: 1953-11-30
Abstract: 758,844. Fluid-actuated valves. MINISTER OF SUPPLY. Nov. 2, 1954 [Nov. 30, 1953], No. 33274/53. Class 135. Valve mechanism . for automatically controlling the supply of a first fluid to a container of a second fluid and preventing premature mixing thereof in the event of leakage comprises a valve 27 closed by a spring and the pressure of the first fluid, a first vent valve 41 spring loaded to open and drain the first fluid leaking past the valve 27 into the chamber 21, a second vent valve 40 spring loaded to close a connection from the chamber 21 and the connection 14 leading to the container and opening a vent passage 36 for the second fluid leaking from the container through a non-return valve in the connection 14, means for opening the valve 27 whereby pressure of the first fluid closes the valve 41 and lifts the valve 40 to close the vent 36 and open the connection between the chamber 21 and the container. As described, the valve 27 controls the passage of kerosene to a jet reaction motor and the pressure of steam from the combustion chamber formed by dissociation of oxidant acts on a piston for actuating the valve 27 when the ratio of first to second fluid pressure leaches a predetermined value.
Patent GB-790025-A (GB)
Title: Improvements in or relating to electric storage batteries
IPC: H01M50/529
Filed: 1955-11-21
Abstract: 790,025. Storage batteries. OLDHAM & SON, Ltd., and MORTON, H. Sept. 27, 1956 [Nov. 21, 1955], No. 33313/55. Class 53. In a multi-cell storage battery container an intermediate section 1 is located between the partitioned box section 2 and the similarly partitioned lid 3, the intermediate section comprising four walls 4 which correspond to the walls 7, 10 of the box section and lid and intersecting partitions 5, 6 which correspond to the partitions 8, 9, 11, 12 of the box section and lid and through which the intercell connectors 15 pass. Connecting bars 17, joining the end cells to terminal stems 18, pass through one wall of the intermediate section and a shrouding 29 for the terminal stems is mounted on the container. The intermediate section, which may be of hard rubber, polythene or polyvinyl chloride, is preferably moulded around the connectors 15 and connecting bars 17 and may be tongued and grooved at the walls and partitions to the box section and lid.
Patent GB-339438-A (GB)
Title: Sound reproducing apparatus
IPC: H04R1/02
Filed: 1929-11-02
Abstract: 339,438. Federal Telegraph Co., and Brower, W. M. Nov. 2, 1929. Receiving-sets, construction of ; loud-speakers. - In order to substantially eliminate noises due to microphonic feedback in a loud-speaker incorporated in a cabinet containing- a radio receiver, electric phonograph, &c., the loud-speaker is mounted in a readily removable, independent housing acoustically insulated from the main cabinet. As shown, a loud-speaker is suspended by a bracket 16 from the top panel 6 of a housing 5. The panel 6 is formed with projections extending beyond the side walls of the housing and these projections are surrounded by a cushion of felt, &c. 21 - - 26 and supported on brackets 19, 20 carried by the top of the main cabinet 1. A further pad 27 is also provided between the front panel 9 of housing 5 and an apertured panel 3 fitted in an aperture 2 adjacent the top of cabinet 1. The top and bottom panels 6, 7 of housing 5 are disposed at an angle to one another, a sound proof gasket 18 being interposed between panels 6, 7 and rear panel 8.
Patent GB-521078-A (GB)
Title: An improved lens mount construction
IPC: G02B7/02
Filed: 1938-11-18
Abstract: 521,078. Photographic lens mounts. KODAK, Ltd. (Eastman Kodak Co.). Nov 18, 1938, No. 33552. [Class 97 (i)] The tubular mount for the lens components of a photographic objective is divided longitudinally into two or more segmental parts, there being means for securing the parts together after the components have been assembled. The segmental parts forming the mount are preferably produced by die-casting. In the objective shown, semi-cylindrical members 1 are formed with grooves 2, 3, 4 for the lenses, which are held against'locating shoulders by spring washers inserted into grooves 32, 33, 34. A further groove 11 receives the diaphragm 12, the operating member 19 of which extends through a slot in the member 1. The meeting edges of the two segments are formed with lugs and holes (not shown) for locating the segments in correct relation. Fins 23 are also provided on the segments, and after assembly the mount is pressed into an external cylindrical member 24, the fins being formed with blunt knife edges so as to bite into the external member.
Patent GB-366158-A (GB)
Title: Process of constructing acid-proof masonry from non-acidproof stones
IPC: C04B26/26
Filed: 1930-11-07
Abstract: 366,158. Acid-proofing stones. GROVES, W. W., 30, Southampton Buildings, London.-(I. G. Farbenindustrie Akt.- Ges. ; Frankfort-on-Main, Germany.) Nov. 7, 1930, No. 33553. [Class 140.] Stones which are not acid-proof are treated, for use in the construction or covering of acidproof structures, by coating them, as by dipping in a well-moistened state, with a coarsely dispersed, aqueous bitumen emulsion free from soaps and alkalies. Bitumen emulsions suitable for the purpose are those which do not separate in flakes when mixed with sand or mineral dust, such as emulsions prepared by means of lignic acid, humic acid, insoluble humates, silicic acid and insoluble silicates. The stones so treated are stacked for drying in such a manner that they cannot adhere, e.g. by placing beneath them battens which are powdered with quartz &c. or coated with a pulp of quartz powder. In assembling the dried stones, a cement is used consisting of an emulsion of the kind referred to and an acidproof mineral powder such as sand. In an example, an asphalt emulsion consisting of 4 per cent of brown coal rich in humic acid, 50 of petroleum asphalt softening at 20-30‹ C., and 46 of water, is employed both for coating and making the cement.
Patent GB-988755-A (GB)
Title: A knitting machine
IPC: D04B15/94
Filed: 1963-08-23
Abstract: 988, 755. Knitting-machines. SCOTT & WILLIAMS Inc. Aug. 23, 1963 [Aug. 31, 1962], No. 33567/63. Heading D1C. A circular knitting machine of the stationary cylinder type has a dial 28 supported on a rotating member but is angularly fixed and adjustable with the needle cylinder 14, the fixing means comprising a cutter to cut the tubular fabric longitudinally as it leaves the needles so allowing the fabric to pass either side of the fixing means. The dial is rotatably supported by rings 22, 26 separated by a shim 24 on a ring 66 which is connected by members 50, 52, 56, 58, 60 and 62 to the needle operating cams 36 and this assembly is supported on a surface 12 and rotated by a chain drive 42 from a variable speed motor 48. Fig. 3 shows the assembly which cuts the fabric and locates the dial angularly relative to the cylinder. A bracket 78 is fixed to the frame 10 and bracket 68 is fixed to the dial supporting ring 22. A cutting wheel 88 driven from a motor 108 cuts the fabric E so that the edges can then pass over an outwardly extending portion 72. Angular location and adjustment is provided by the adjustable screws 80, 82 acting on the ear 74. The cutting wheel 88 is sharpened by a manually operated grinding wheel 116 Fig. 2 (not shown). Specifications 888, 153 and 988, 756 are referred to.
Patent GB-1130673-A (GB)
Title: Telephone exchanges
IPC: H04Q3/00
Filed: 1967-07-21
Abstract: 1,130,673. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 21 July, 1967 [26 July, 1966], No. 33572/67. Heading H4K. In a PBX having a multi-stage reed relay switching network through which paths are selected by means of a guide wire network, the subscribers are arranged in groups and a s canner is arranged to scan the groups (but not at this time the lines within a group) so as to detect a group which contains a calling line, whereupon the scanner is then used with the guide wire network in order to find a free path from a junctor to the "calling" group whereafter the scanner is effective to find the particular line that is calling in order to complete the connection thereto. Calling lines are detected by means of a certain potential V B  on their b wires which potential is effective to charge capacitor C1 whereby when the circuit AE1 pertaining to the group containing the caller is interrogated by (electronic) scanner AK, transistor TX1 is switched on. As a consequence, one of diode gates D1 . . . D10 is opened and a Schmitt trigger ST is operated. The identity of the group containing the calling line is thereafter entered in a memory SpZ1 . . . 10 via logic ZSp, US1, US2. The scanner is disconnected from the lines (zal . . . 10 opened) and is connected to the switching network's guide wires starting at the last stage KSN(kn1 . . . 10) and working back to the first stage. At each stage the scanner runs until a free link is found and the identity of each link is entered in the memory. At the first stage KSA, the scanner determines, via contacts ea11 . . . 10, which line in the group is calling and conveys this information to the memory. The contents of the memory are used for setting up a path between the caller and the preselected junctor VS whereafter all the circuits are cleared and group scanning recommences.
Patent GB-336594-A (GB)
Abstract: 336,594. National Cash Register Co., (Assignees of ShipLey, B. M.). July 13, 1928, [Convention date]. Divided on 315,662. Drawings to Specification. Cash registers; keyboard interlocks; printing totals.-In a machine having an adding and subtracting totalizer, control keys for selecting the positive or negative side of the totalizer, and locking means for compelling the depression of the control key corresponding to the sign of the true balance, the locking means is normally ineffective for adding and subtracting operations but is rendered effective to select the appropriate control key by the initial movement of a totaltaking control member to a position for selecting the add and subtract totalizer. The totalizer is axially movable, and one or other of a pair of geared discs with projecting arms is operated to control the position of a cam disc so as to determine the direction of movement of a rocking member that is coupled to a locking sector associated with the control keys. The mechanism described and shown on the drawings is identical with that described in Specification 315,662, but the claims differ. Specification 8119/15 also is referred to.
Patent GB-989348-A (GB)
Title: Improvements in or relating to centrifugal fan housings
IPC: F04D29/42
Filed: 1961-09-20
Abstract: 989,348. Centrifugal fans. AMERICAN AIR FILTER CO. Inc. Sept. 20, 1961 [Sept. 26, 1960], No. 33674/61. Heading F1C. In a scroll-shaped centrifugal fan housing the main part is of substantially rectangular crosssection in planes containing or lying parallel to the scroll axis, and a portion of the housing leading up to the fluid outlet is outwardly flared in such a way that the outlet is of trapezoidal cross-section. A fan casing, Fig. I, has a trapezoidal outlet formed by walls 8, 20 and 26. Each wall 20 is flared outwardly from the plane of the adjacent end cover 10, preferably at an angle of between 10 and 20 degrees, the junction line 18 preferably being at an angle of 45 degrees to the horizontal plane. The wall 8 and the walls 20 may be curved and integral with or separate from the scroll wall 2 and the end covers 10 respectively, the latter being formed with axial inlets 14. For multi-fan units with the fans arranged in parallel, adjacent fans may be interconnected by a member, Fig. 5, formed with sloping walls 20, 20a of the outlets of adjacent fans, which walls are preferably lap-joined to the edges of the side walls 10. The wall 8 may be of a length sufficient to extend along the front of several fan housings.
Patent GB-976740-A (GB)
Title: Trimmer condenser
Filed: 1963-08-26
Abstract: 976,740. Capacitors. R. HOPT. Aug. 26, 1963 [Nov. 5, 1962], No. 33682/63. Heading H1M. Trimmer capacitor (Figs. 1, 3) comprises a ceramic sleeve 1 having an electrode coating 2 at one end and a threaded screwdriver slotted spindle 7; the remaining end of the sleeve being fitted with a metal cap 3 having a mounting flange 4 and also a sleeve extension 5 formed with three radially and axially spaced depressed protuberances 6 resiliently engaging the threads of the spindle. The depressions are of circular or of segmental section running parallel to the threads of the spindle, and the sleeve may be formed of resilient material separately from the cap, and crimped thereto. Further depressions may be provided to bridge the threads and give a large electrical contact thereto.
Patent GB-896496-A (GB)
Title: Improved polymerization process
IPC: C08F10/00
Filed: 1960-10-03
Abstract: Homopolymers and copolymers of olefinically unsaturated hydrocarbons are made by contacting the hydrocarbon in a reaction zone, with a defined amount, based on the weight of the hydrocarbon of a catalyst comprising (1) a reducing agent, as defined later, and (2) a halogen-containing compound of a transition metal from Group IV to VI of the Periodic Table, by first mixing the halogen-containing compound with a portion of the total amount of the reducing agent and passing the resulting mixture into the reaction zone containing the hydrocarbon to be polymerized, and separately passing the remainder of the reducing agent into the reaction zone.  By reducing agent is meant a metal, or metal alkyl, or metal alkyl hydride, or metal alkyl halide, or mixtures thereof, of metals of Group 1 to VI of the Periodic Table as defined in The Handbook of Chemistry, 9th Edition, by Lange, published in 1956 by McGraw-Hill Book Company.  The catalyst may include additional components such as silicon tetrachloride, or tin chloride, or amyltrichlorosilane.  Preferred catalyst reducing components are, sodium, magnesium, gallium, dibutyl zinc, methylisobutylcadmium, trihexyl-, triethyl-, and methyldiethylaluminium, diisobutylaluminium hydride, triethyllithiumaluminium hydride, methylaluminium sesquichloride, diethylaluminium chloride, diethylleaddichloride, and butylmagnesiumchloride.  The other component may be titanium tetrachloride, titanium trichloride, vanadium tetrachloride, vanadium oxytrichloride, or titanium tetraiodide.  The polymerization is usually effected in an organic solvent or diluent, e.g. a hydrocarbon or halogen-substituted hydrocarbon.  The Specification contains flow diagrams showing methods for operating the process continuously. Specified hydrocarbon monomers are ethylene, propylene, butene-1, pentene-1, hexene-1, 4-methylpentene-1, butadiene, isoprene, styrene, methylstyrene and mixtures thereof, e.g. ethylene and butene-1.
Patent GB-605108-A (GB)
Title: Manufacture of trichloromethyl diaryl methanes
IPC: C07C17/26
Filed: 1945-12-14
Abstract: Trichloro-methyl-diaryl methanes are obtained by condensing chloral, or a compound yielding chloral under the reaction conditions, and an acyl compound of the benzene series having replaceable nuclear hydrogen in the presence of sulphuric acid or oleum containing the sulphonic acid of the aryl compound in excess of that formed in situ. A preferred form of the invention comprises the use in such a condensation of spent acid derived from a prior condensation.  In a modification of the invention, the reactants are brought together, and stronger sulphuric acid is introduced as required to effect condensation of the chloral and the aryl compound.  Specified chloral starting compounds are: chloral hydrate, chloral alcoholate and chloral acetal.  Specified aryl starting materials: benzene derivatives having replaceable hydrogen in the ortho or para positions especially those which contain substituents such as fluorine, chlorine, bromine or iodine, hydroxy, methyl, ethyl or other alkyl groups, and methoxy, ethoxy or other alkoxy groups, e.g. benzene, fluorobenzene, bromobenzene, iodobenzene, methoxybenzene, phenetol, phenol, toluene, metaxylene, ethyl benzene.  Examples are given of various modifications of carrying the invention into effect.
Patent GB-1147581-A (GB)
Title: Improvements in and relating to driving tools
IPC: B25B15/00
Filed: 1967-07-24
Abstract: 1,147,581. Screwdrivers. TORRINGTON CO. 24 July, 1967 [22 July, 1966], No. 33902/67. Heading B4W. [Also in Division F2] A screwdriver 8 for manual operation or for connection to a power tool, comprises a shank 10, and an integral head 9 with ribs 14 which have end faces 18, each of which slopes along its length and depth. Recesses 22 between the ribs have a depth from face 18 which increases radially from the axis of the screwdriver. The screwdriver may be of the blade type.