baber/WOPTO huggingface dataset:
Patent GB-1292337-A (GB)
Title: Improvements in or relating to annunciators for detecting open circuit conditions in electrical circuits
Inventor: DUFFILL MAURICE GEORGE
IPC: G01R31/02
Filed: 1969-06-28
Abstract: 1292337 System monitoring J T SCOTNEY Ltd 26 June 1970 [28 June 1969] 32780/69 Heading G1A [Also in Division H2] A fault detecting arrangement comprises an insulating chamber 10 containing a radiation sensitive detector, e.g. a photo-cell or thermocouple and one or more radiation generating devices, e.g. lamps 14 or heaters, the or each device being connected across a normally conductive element, e.g. a fuse or switch contacts, for response to the voltage across the element when an open circuit fault occurs. The output from the detector may effect the operation of a visual and/or audible alarm and may halt a protected apparatus. As shown, neon lamps 14 and ballast resistors 16 are encapsulated in the wall of a cylindrical housing 10 with the exception of an inwardly facing portion of the envelope of each lamp. A photo-cell (not shown) is placed in the housing and end plates close the housing. Connecting pins 26 for the lamps and resistors may be plugged into a wafer socket member or into sockets in a cylindrical housing having indicating lamps respectively connected in parallel with the neon lamps.
Patent GB-812676-A (GB)
Title: Process and tool for decreasing the internal diameter of a cylindrical bore
IPC: B23P6/00
Filed: 1957-10-22
Abstract: 812,676. Re-working valve guides etc.; rolling. CHAMPIGNY, P. Oct. 22, 1957, No. 32911/57. Classes 83 (2) and 83 (4). A process for decreasing the internal diameter of a cylindrical bore such as a valve guide, comprises forming a helical groove in the internal surface by a rolling operation which produces inwardly-projecting helical ridges. The main tool A consists of a rod 1 with an extension 3 of reduced diameter in which is formed a recess 5 adapted to receive a discshaped roll 10 and axial stems 11 journalled in shallow end portions 7 and 8, one stem being held in the seating by a circlip inserted in the annular groove 13 and the other stem by bending the walls of the recess portion 8 to form lips 14. An initial indentation in the bore is made by a tool B comprising a cylindrical body 16, with a semi-cylindrical groove 17 in which is mounted a short rod of hard metal 20 having substantially the same diameter as the roll 10. The indentation is made by a hammer blow on the handle 15. The square head of the tool A is then inserted in the bore D and the tool pulled through until the wheel 10 engages the indentation 23 when a rotating device is fitted to the square head to enable the helical groove 25 to be formed. After-the rolling operation the ridges 26 are machined and polished to the required diameter and finish.
Patent GB-915950-A (GB)
Title: Bis-nitrogen heterocyclic compounds and a method for their preparation
IPC: C07D471/04
Filed: 1961-09-13
Abstract: Dimeric nitrogen heterocyclic compounds are produced by heating under reflux in the presence of a palladium catalyst, a compound with a boiling point above 110 DEG C. selected from quinoline, naphthyridine, pyridine, 2-methylquinoline, pyrrole or substituted derivatives, the substituents being on ring positions above 3 and selected from lower alkyl, lower alkoxy or phenyl.  The catalyst may be supported on carbon.  Compounds obtained include 6,61-dimethoxy-2,21-biquinolyl <FORM:0915950/IV (b)/1> 2,21-bis-1,5-naphthyridyl <FORM:0915950/IV (b)/2> 4,41,6,61-tetramethyl-2,21-bipyridyl <FORM:0915950/IV (b)/3> 1,2-di-2-quinolylethane <FORM:0915950/IV (b)/4> and also 2,21-biquinolyl; 2,21-bipyridyl; 8,81-dimethyl - 2,21-biquinolyl; 4,41-diphenyl-2,21-biquinolyl; and 2,21-bipyrrole.  The compounds are useful as complexing agents for copper and other metallic ions, permitting the detection of copper in concentrations of one part in one hundred million.
Patent GB-652089-A (GB)
Title: Improvements in electric lanterns for vehicles
IPC: F21S8/10
Filed: 1948-12-21
Abstract: 652,089. Lamp holders. KRANENDONK, T. Dec. 21, 1948, No. 32966. [Class 38 (i)] [Also in Group XI] The bulb socket 2 and the casing 1 of a vehicle lamp are made integral from a resilient material such as soft rubber and electrical contact with the external surface of the bulb cap is made by a pin 10 which is thrust through aligned bores 15, 16 in the casing and socket, the bore 16 being tangential to the bulb cap. The latter may be the screw or bayonet type but slots for the bayonet pins need not be formed in the bulb socket since the resilience of the socket material holds the bulb securely. The contact pin 10 has a transverse hole 11 through which the bared end of a supply lead 12 is threaded and when the pin is in position the hole 11 is inside the bore 15. The central contact for the bulb is carried by a bolt 6 which is used to secure the lamp to the mudguard of a bicycle.
Patent GB-343018-A (GB)
Title: Improved adhesive tape for fastening packages and for like purposes
IPC: C09J7/21
Filed: 1929-10-31
Abstract: 343,018. Adhesive'tape. KRUEGER, T. H., 153, Waverly Place, New York, U.S.A. Oct. 31, 1929, No. 33115. [Class 16.] Adhesive tape for fastening packages &c. is divided longitudinally into three zones by parallel lines of weakness along which the tape as a whole will readily bend to a channelled crosssection with the gum inwards, so that the sides may be gripped by the fingers of the user without touching the moistened gum, as shown. The lines of weakness are formed by creasing, scoring, or otherwise weakening the tape either before or after the gum is applied. The tape is made up in rolls, and is preferably used in the machine described in Specification 333,575, [Class 140, Waterproof &c. fabrics].
Patent GB-633923-A (GB)
Title: Manufacture of resins from aldehydes and aromatic hydrocarbons
IPC: C08G10/02
Filed: 1947-12-16
Abstract: In the manufacture of resins by reacting aldehydes and aromatic hydrocarbons in the presence of a strong acid, followed by p extracting the resin from the reaction mixture with an organic solvent, the extraction process is improved by facilitating the separation of the reaction mixture into an acid phase and a solvent phase by adding an amount of a wetting agent which has surface activity in the presence of the acid used sufficient to facilitate the separation.  Specified are wetting agents: sodium lauryl sulphate, the composition known as " Teepol " (Registered Trade Mark), i.e. an aqueous solution of <FORM:0633923/IV (a)/1> where R1 and R2 are higher alkyl radicals (e.g. containing 8 to 18 carbon atoms), and sodium salts of alkyl-aryl sulphonates; hydrocarbons-benzene, alkyl benzenes, xylene, naphthalene, acenaphthene, alkyl naphthalenes, and polynuclear hydrocarbons, e.g. phenanthrene or anthracene; aldehydes-formaldehyde and benzaldehyde; organic solvents-toluene and xylene.  In examples: (1) xylene and formalin are reacted in the presence of strong sulphuric acid, toluene and water are then added, and " Teepol " is then added with agitation to break the emulsion first formed.  The layers are then separated, and the resin is washed free of acid and the solvent distilled off; (2) coal tar heavy naphtha and (3) naphthalene replace the xylene of (1).
Patent GB-736278-A (GB)
Title: Combined flower-pot base and cover
IPC: A01G9/02
Filed: 1953-11-30
Abstract: 736,278. Flower-pots. HILLE, A. Nov. 30, 1953 [Nov. 29, 1952], No. 33230/53. Class 6(2). A combined flowerpot base and holder of a material impermeable to air comprises a closed lower part 1 with integral resilient tonguelike parts 2 upstanding from it to enclose the pot. The device may be of injection - moulded synthetic resin and includes integral studs 3 to receive the pot and a groove 4 to receive surplus water. The tongues 2 have projections 5 which space them from the flower-pot walls so that an air-space surrounds the pot.
Patent GB-743764-A (GB)
Title: Improvements relating to spring joint connections for dynamic testing machines
IPC: G01N3/02
Filed: 1953-12-01
Abstract: 743,764. Testing physical qualities of materials. AVERY, Ltd., W. & T. (Schenck Maschinenfabrik Ges., C.). Dec. 1, 1953, No. 33302/53. Class 106 (2). [Also in Group XXII] In a dynamic testing machine two members are connected by at least one spring link having clamping heads of greater thickness than an intermediate portion, the said spring link being characterized in that the surfaces of the heads coming into contact with the members to be connected are provided with serrations adapted to engage with similar serrations on the members, and in that the resilience of the intermediate portion admits of relative displacement of the two heads. In a first embodiment, Fig. 1, two parts 2, 4 are connected by a link 1. In a second embodiment, Fig. 3, the parts 2, 4 are connected by two links 1A, 1M, shown in Figs. 4a, 4b respectively, the link 1M passing through an opening 6 in the link 1A. Two other arrangements of this second embodiment are also described. Specification 721,603 is referred to.
Patent GB-1176959-A (GB)
Title: Connector Assembly
IPC: H01R12/77
Filed: 1967-07-20
Abstract: 1,176,959. Two-part couplings. THOMAS & BETTS CORP. 20 July, 1967 [29 Aug., 1966], No. 33396/67. Heading H2E. The bared ends of the conductors of at least one flat cable 14 are electrically connected, e.g. by soldering, to the rearward portions 13 of the contacts of connector 10, strain relief of the connection being provided by members 23, 24 fixed to connector 10 by rivets 30 and to each other by rivets 32 to sandwich the cables. The contacts may be ribbed to lock within connector 10, and may have semi-cylindrical cut-away portions for ease of soldering. Members 23, 24 are knurled at 26, 28 for easy gripping. Connector 10 mates with a block 40 carrying pins 42 which fit into the contacts carried by connector 10, and strain relief members 23, 24 have ridges 64 which lock into channels 62 of block 40. Proper mating is achieved by polarizing these parts.
Patent GB-838323-A (GB)
Title: Improvements in automatic control systems
Inventor: HOWES KENNETH
IPC: G05B5/01
Filed: 1957-10-25
Abstract: 838,323. Automatic control systems for jet engines. SMITH & SONS (ENGLAND) Ltd., S. Oct. 27, 1958 [Oct. 25, 1957], No. 33449/57. Class 38 (4). An automatic control system for controlling the operation of a jet tur. bine is so arranged that it is stable for small or large discrepancies between actual and demanded operational conditions of the turbine. A jet turbine 1 is normally controlled by a throttle 2 attached to a fuel supply system 3, the fuel system 3 having an over-riding control in the form of a solenoid controlled valve in accordance with an electric signal in a line 4. Thermocouples in the jet pipe of the turbine 1 develop a signal representing the actual operating value of the turbine exhaust temperature which signal is fed into a comparator 7 by way of an amplifier 5. A further signal is generated in a function generator 8 from signals 9, 10, 11 representing turbine speed and intake temperature and pressure respectively, the generated signal representing the demanded exhaust temperature, which signal is fed into the comparator 7 in opposition to the " actual value " signal such that any signal appearing at the output of the comparator 7 represents a discrepancy between the actual and demanded operation conditions of the turbine 1. The discrepancy signal is fed to a second comparator 14 by way of two parallel circuits the first of which is a T-network comprising components 16-19 which transmits the discrepancy signal whatever its value but with a phase lag, the second of which circuits comprises components 21-23 and a by-pass diode 28 which circuit transmits the discrepancy signal only when it exceeds a predetermined value but which is then transmitted with a phase advance. The output of the comparator 14 is fed to a phase shift circuit 33, the output of which constitutes the signal 4 controlling the solenoid in the fuel supply system 3 whereby the turbine is controlled according to the demanded conditions.
Patent GB-394875-A (GB)
Title: Improvements in and relating to vacuum arc apparatus
IPC: B62L5/04
Filed: 1932-11-25
Abstract: 394,875. Converting. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Nov. 25, 1932, No. 33458. Convention date, Nov. 25, 1931. [Class 38 (ii).] Relates to gaseous discharge apparatus such as mercurv-arc rectifiers and inverters in which by means of grids, anode sleeves, &c. the ignition is raised above the normal operating voltage in order that the moment of striking in each positive half cycle of anode voltage may be determined by application to the anodes of a high voltage derived from an auxiliary source, and consists in applying the ignition voltage through grid-controlled auxiliary valves. In the arrangement shown the anodes 3, 5 of a full-wave rectifier fed with power current from a main transformer 7 are connected through valves 10 to transformer 9 supplying ignition voltage. The moment of application is determined by grid potentials supplied by transformers 12, regulation being effected by adjusting the phase of the grid voltage in relation to the working voltage of the anodes 3, 5 by means of phase-shifting elements such as inductances 13 and condensers 14. Phase shifting elements may be provided in the circuits of the transformers 9 supplying the ignition voltage and these may be adapted for operation simultaneously with the phase-shifting elements of the grid circuits.
Patent GB-325488-A (GB)
Title: Improvements relating to delivery apparatus particularly coinfreed delivery machines
IPC: G07F11/18
Filed: 1928-11-15
Abstract: 325,488. Mansfield, T. J. Nov. 15, 1928. Delivery of articles stored in piles.-In apparatus for the delivery of articles in succession from a pile, the pile is supported, when the drawer is pulled out, by a collapsible or deflectable supporting platform extending from the top edge of the rear wall of the drawer, such extension being resilient or spring-controlled in such a way that the return of the empty drawer is assisted by the resiliency or spring action. As shown in Fig. 1, the platform comprises one or more strips 2 of clock spring steel attached to the drawer 1 and coiled round a fixed clamping bar 3. The platform may be a plate 4, Fig. 3, hinged to the drawer 1 and controlled by coiled springs 5 to cause the platform to move in a counterclockwise direction about its hinges. This action causes the extension plate to exert a leverage which assists the closing action of the drawer.
Patent GB-1391520-A (GB)
Title: Optical character recognition system
Inventor: BOROWSKI CHESTER JOSEPH JR
IPC: G06V30/166
Filed: 1972-07-18
Abstract: 1391520 Character recognition systems RECOGNITION EQUIPMENT Inc 18 July 1972 [28 July 1971] 33540/72 Heading G4R A character recognition system includes an electronic normalizer to reduce scanned characters, which may be in any of a number of font sizes, to a standard size. The scanning system described uses a column of 96 photo-cells and an oscillating mirror, the column being 3 times taller than the tallest character. The signals from the scanner pass to a circuit which, under the control of a processor, also fed by the signals, multiplexes the outputs of those n photo-cells which view the character to be recognized. Dependent on the height of the font n may be between 16 and 32. The serial signals from the multiplexing circuit are digitized to 4-bit form by an analog-digital converter which feeds the normalizer. The normalizer is controlled by the processor and forms the average of the sum of the weighted output of adjacent photo-cells. Each average represents the output of a notional cell that is proportionally taller than the actual cells by the amount H that the scanned character is proportionally taller than the standard character, the number of notional cells (16) being the number of actual cells in a column the height of the standard character. If for each font height H is a multiple of # of the height of a single cell then the column of photo-cells is regarded as comprising 8n units, each unit of a group of 8 having an output equal to that of the corresponding photo-cell. Thus, for example, suppose that the ratio of the height of the scanned character to the height of a standard character is known to be 9 : 8, i.e. H=#. For each successive vertical slice of the character, viewed by 18 cells, the output of the first notional cell is equal to 1/9 of the sum of the output of the first 9 units, i.e. 1/9 of 8 Î the output C1 of the first cell and of 1 x the output C2 of the second cell. Similarly the output of the second notional cell is 1/9 of the sum of the second 9 units, i.e. 1/9 of (7 x C2) + (2 x C3), &c. The 4-bit outputs of the 16 notional cells pass to recognition circuitry, not described, which may control, for example, a sorting machine.
Patent GB-521455-A (GB)
Title: Improvements relating to the manufacture of electric dry-contact rectifiers
IPC: H01L21/16
Filed: 1938-11-18
Abstract: 521,455. Asymetrically-conducting resistances. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. Nov. 18, 1938, No. 33566. Convention date, Dec. 27, 1937. [Class 37] Previous to the normal oxidizing treatment, copper blanks for rectifiers are heated to about 1000C. in an oxidizing atmosphere and the oxide layer thus produced removed, for example by nitric acid, and the blanks washed to free them from traces of acid &c.
Patent GB-1392263-A (GB)
Title: Electrolysis of aluminium
IPC: C25C3/20
Filed: 1973-07-16
Abstract: 1392263 Determining alumina SWISS ALUMINIUM Ltd 16 July 1973 [18 July 1972] 33737/73 Heading G1N [Also in Divisions C7, G3] The concentration of alumina in a known type of aluminium electrolysis cell is controlled by passing the cell current through a sampling cycle as shown, the cell voltage and current being measured at 52,53 and 56,58 after a first and second current reduction respectively, the current then being returned to its normal value 59. From the measured values the concentration of alumina in the cell is calculated so that, at the next servicing of the cell, the supply of alumina to the electrolyte is varied to bring the alumina concentration back to a desired value. Under given conditions of cell voltage instability, the cell current is returned to its normal value at 60 or 61 without taking measurements. Details are given of percentage current reductions to be used and when the measurements are to be taken. The cell is described with reference to Fig.1 (not shown).
Patent GB-786550-A (GB)
Title: Improvements in or relating to apparatus for supervising and recording timed operations
IPC: G07C3/10
Filed: 1955-11-25
Abstract: 786,550. Recording-apparatus. MAYR, J. Nov. 25, 1955, No. 33913/55. Class 106 (4). Apparatus for recording time operations at, as shown, ten machines, has a stylus 1-10, Fig. 1, for each machine recording on strips S of a time-driven sheet T, four switches A ... D being associated with each stylus to give four types of markings A<SP>1</SP> ... D<SP>1</SP>, Fig. 2, each marking being associated with a different category of work being performed at the machine being supervised. As shown in Fig. 3, the stylus 12 is operated by a relay 11 via operated A ... D switch contacts 21, 41 ... 24, 44, a different frequency pulse generator being switched in at each position. A second set of contacts 31 ... 34 connects a wiper switch G1 to one of four counters 55 ... 58, each associated with one of the categories A ... D, the wiper switch scanning each of the ten positions in turn and hence causing to be recorded on the counters the totals of each category at all ten stations.
Patent GB-339359-A (GB)
Abstract: 339,359. I. G. Farbenindustrie Akt.- Ges. Aug. 7, 1929. Divided on and addition to 317,325, under-which a Specification, was laid open to inspection under Sect. 91 of the Acts, Aug. 14, 1929. Samples furnished. Acidylamino compounds; amidines. - Basic compounds, suitable for therapeutical and other purposes, are prepared by condensation of a saturated or unsaturated fatty acid containing at least ten carbon atoms, or an ester, chloride. amide or imino-ether thereof, with an aromatic primary or secondary amine having a side chain containing tertiary nitrogen. The condensation of oleic acid chloride with p-#-diethylaminoethoxyaniline is excluded. Examples are given of the condensation of (1) palmitic acid chloride with p - # - diethylaminoethoxyaniline, p-aminobenzoyldiethylaminoethanol and unsymmetrical ethyldiethylaminoethyl-p-phenylenediamine (see Specification 274,058); (2) oleic acid chloride with unsymmetrical methyldiethylaminoethyl-pphenylenediamine. The probable formulae of the products are given. When using the corresponding acids, esters and amides, it is advantageous to employ a temperature of 200-500‹ C. with or without the application of pressure.
Patent GB-364248-A (GB)
Title: Improvements in the construction of airships
IPC: B64B1/00
Filed: 1930-11-11
Abstract: 364,248. Airships. ROSS, D. E., Lafayette, Indiana, U.S.A. Nov. 11, 1930, No. 33963. [Class 4.] A dirigible having its largest diameter nearer to the front than to the rear end thereof, has an axial air duct opening to the atmosphere at the forward end and extending rearwardly therefrom, and a plurality of circumferential series of air outlets at the surface of the hull, beginning at a point in rear of the maximum diameter and extending toward the'rear end, the outlets communicating with the axial duct, whereby air is taken from the front end of the body and discharged upon the outer surface of the rear portion of the body at numerous points to relieve the retarding effect of air resistance at the front end of the hull and of vacuum upon the exterior surface of the rear portion of the hull. The hull structure, Fig. 1, comprises an axial compression member 1 and annular members 2, 2a connected to hubs 4, 4a mounted on the member 1 by spokes 3, 3a respectively. Longitudinal and spiral rods or cables 6, 7 pass over the rings 2, 2a and are connected to the peripheries of dished resilient end plates 5. The flexibility of the end plates shown in Fig. 3 may be increased by increasing the number of annular corrugations; alternatively radially corrugated plates may be used or two-piece plates, Fig. 6, to the main parts 5 of which are attached the longitudinal members 6 and to the superposed parts 5b the spiral members 7. The tension members may be provided with individual tensioning springs. The bore of the axial member 1 may be tapered and is open both ends; the air passing through the bore escapes through passages in the spokes 4a and through rearwardly directed slots in the rings 2a. The compression member 1 may be of sufficient diameter to act as a passage way.
Patent GB-919423-A (GB)
Title: Metallurgical process for working beryllium
Inventor: MOORE ALAN
IPC: C22F1/16
Filed: 1960-10-04
Abstract: A method for forming beryllium into shaped bodies comprises casting beryllium to form an ingot of coarse-grained material, working the ingot material to form the shaped body with a fibrous grain structure and subsequently reducing the grain size of the shaped body.  The grain size of the ingot material is in the range of 300 to 80 m  and the grain size of the refined material is not greater than 80 m . The fibrous grain structure is achieved by warm rolling at a temperature between 200 DEG  and 500 DEG  C. with less than 50% reduction to avoid fracture.  The grain refinement is effected by annealling the warm-worked beryllium at a temperature in the range of 850 DEG  to 1000 DEG  C. for a time which increases with decreasing temperature and is in the range 15 to 300 secs.  In an example, a cast beryllium ingot is rolled at 400 DEG  C. to a 50% reduction; flash annealed at 980 DEG  C. for 40 secs. to produce a fully recrystallized equiaxed grain structure, then annealed at 700 DEG  C. for 19 hours in order to remove any residual stresses and allowed to cool slowly in the furnace and finally warm rolled 40% at 400 DEG  C. to a sheet 0.22 inch thick.  The beryllium has the following analysis: .Fe-.-.-.-.0.037% .Al-.-.-.-.0.056% .Si-.-.-.-.0.091% .Mg.-.-.-.0.0008% .Mn.-.-.-.0.002% .Ni-.-.-.-.0.004% .Cr-.-.-.-.0.001% .Cu-.-.-.-.0.001% .Be-.-.-.-.to 100%