baber/WOPTO huggingface dataset:
Patent GB-505134-A (GB)
Title: Improvements in or relating to grid arrangements for ice trays
IPC: F25C1/24
Filed: 1938-03-08
Abstract: 505,134. Ice - making. RUDD, H. B. March 8, 1938, No. 7232. [Class 29] A tray for making ice cubes is provided with mechanical means for removing the'grid from the tray and subsequently releasing the cubes from the grid. The grid may be formed of two independent flexible metal strips 1, 1a carrying partition members 10 of stiff metal secured to the strips by, rivets 11 passing through lateral extensions 10b, 10c, Figs. 5, 7, on the members. Secured to the ends of the strips are spindles 2, 2a upon which are freelymounted blocks 3, 3a formed with slots 4, 4a engaged by pins 6 carried by the forked ends of levers 5 connected together by links 7, 7a. After the formation of the ice cubes, the grid is released from the tray by raising the levers to the position shown in Fig. 5 so that the strips 1, 1a are moved to the relatively crossed position, the blocks 3, 3a being displaced vertically relatively to one another. Continued movement of the levers to the position shown in Fig. 7 results in the expansion of the strips 1, 1a and the detachment of the ice cubes which are ejected from between the members by the lateral extensions 10b, 10c.
Patent GB-195069-A (GB)
Title: Improvements in reciproating pumps
IPC: B60C23/00
Filed: 1923-03-13
Abstract: 195,069. VersÚ, Moulart, et Cie, (Assignees of Steurs, A.). March 17, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Connecting - rods.- The connecting-rod f of an air pump is screwed into a cross-pin e bearing throughout its length against the body of the piston, and at its other end screws into a socket integral with a sleeve surrounding the crank-pin i.
Patent GB-145150-A (GB)
Title: Improvement in locks for doors
IPC: E05B27/08
Filed: 1919-03-25
Abstract: 145,150. Bankam, W. F. March 25, 1919. Locks, revolving-barrel; locks with special means for operating bolt.-The bolt b is operated by a lever f having a slotted boss mounted in a plate a and retained in position by a cover-plate d. The lever is normally locked by a pair of pivoted spring-pressed jaws r engaging the slot t in the boss, and also by pins o on spring plates n engaging holes in the boss in either locking or unlocked position. This locking-mechanism is released by the insertion of a key, Fig. 10, through a suitably apertured keyhole plate, the axial movement of the key effecting by inclines 4 thereon the separation of the spring jaws r, and by pins 5 thereon the depression of the spring- mounted pins o. On rotating the key, the lever f can be oscillated to shoot or withdraw the bolt b. A pillar t is fixed to the plate a and carries wards corresponding to the wards v in the key. Ribs 2 in the key correspond with grooves in the keyhole plate.
Patent GB-938867-A (GB)
Title: Mono-and dis-azo dyes containing quinone residues and processes for preparing them
IPC: C09B43/20
Filed: 1960-01-06
Abstract: The invention comprises mono- or dis-azo dyes having 1 or 2 residues of formula <FORM:0938867/IV(a)/1> <FORM:0938867/IV(a)/2> where Y is the atoms required for an aryl nucleus, preferably benzene or naphthalene, Z is a coupling component residue and R is an alkyl or substituted alkyl group, which contain at least one o- or p-quinone group or halogen or alkyl substituted derivatives of such groups. They may be made by oxidizing the corresponding o-hydroxy or o,o1-dihydroxy dyes which contain at least one o- or p-dihydroxyphenyl group and acylating the quinone thus obtained. Oxidation may be effected with an oxidizing agent, e.g. benzoquinone or chloranil.  Preferred acylating agents are end esters especially those of formula R3C(R2)=C(R1)-OCOR where R2 and R3 are H or alkyl, R1 is H, alkyl, alkenyl or aryl and R is alkyl or substituted alkyl, e.g. CH2Cl.  Acylation is preferably effected in a solvent and in the presence of an acid catalyst.  Representative of specified starting materials are 2-(41-[411-(2111,5111-dihydroxyphenethyl) -phenylazo]-naphthalene azo)-4-methoxy-1-naphthol, p-(1-hydroxy-4-methoxy-2-naphthalene azo)-phene-thyl catechol, 2-(p-[b -(hydroquinonyl)-ethyl]phe-nylazo)-4-n-propoxy-1-naphthol, 2-(p-[41-me-thyl-21, 51-dihydroxyphenylthioethyl]-phenylazo)-4-methoxy-1-naphthol and 2-(21,51-dimethoxy-31-[211-(2111, 5111-dihydroxybenzoyl)-ethyl]-phenylazo) -4methoxy-1-naphthol. Representative of specified end esters are 1-propen-2-ol, 4-methyl-1,3-pentadiene-2-ol, 1-phenyl-ethanol, vinyl and 1- and 2-hepten-2-ol acetates and 1-hexen-2-ol chloracetate.  Examples are given of the preparation of the dyes, representative of those made being 1-acetoxy-4-methoxy and n-propoxy -2-(p-(b -(p1-quinonyl-ethyl)-pheny-lazo)-napthalene, 1-acetoxy-4-methoxy-2-(41-(p-(-quinonyloxy)-phenylazo) -naphthalene, 3-(p-quinonylacetamido)-4-(o-acetoxyphenylazo) -1-phenyl-5-pyrazolone, 1-acetoxy-4-acetyl-2-(41-[p-quinonylethyl]-21-acetoxy -phenylazo)-naph-thalene, 1-acetoxy-4-(o-hydroxyphenylazo)-2-(p-quinonylethylphenylazo) -naphthalene, 1-acetoxy-4-(o-acetoxyphenylazo) -2(o-acetoxy-p-[p1-quinonylethyl]-phenylazo-naphthalene, 1-acetoxy-4-(p-quinonylacetamido) -2-(o-acetoxy-p-[p1-quinonylethyl]-phenylazo)-benzene and 1-acetoxy-2-(21, 51-diacetoxy-41-[211-acetoxy 411-(p-quinonylethyl)-naphthylazo]-phenylazo)-4-methoxy naphthalene. The products are used in the preparation of the dye developers of the original application.  Specifications 853,479, 880,021 and 898,706 also are referred to.
Patent GB-347809-A (GB)
Title: Diminishing visibility of aircraft
IPC: B64C3/26
Filed: 1930-03-07
Abstract: 347,809. Diminishing visibility of aircraft. BANNERMAN, B., St. Delyn, Rock, Wadebridge, Cornwall. March 7, 1930, No. 7457. [Class 4.] The visibility of aircraft is diminished by covering their outer surfaces with quicksilvered safety glass or glass to form a mirror.
Patent GB-645084-A (GB)
Title: Improvements in or relating to oscillation generators
IPC: H05B6/50
Filed: 1948-03-11
Abstract: 645,084. Automatic control systems for oscillation generators. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 11, 1948, No. 7463. Convention date, March 13, 1947. [Class 38 (iv)] [Also in Groups XI and XL (c)] In an oscillation generator, particularly for high-frequency heating purposes, the grid bias for the oscillator valve is produced by rectification of the output of a resonant control circuit which is inductively coupled with an impedance which constitutes part of the tank circuit of the oscillator and is so tuned that any frequency changes due to changes in the impedance of the load connected to the oscillation generator produce a predetermined regulation of the output voltage of the oscillator. As shown, the oscillator valve 1 has a tuned output circuit comprising the inductor 7 and variable capacitor 10, a load 9 being connected in shunt with the inductor 7. The control circuit comprises an inductor 14 inductively coupled with the inductor 7 and shunted by a variable capacitor 15 across the terminals of which are connected the anodes of a full-wave rectifier 16, the voltage drop across resistor 13 causing a negative bias to be applied through the resistor 12 to the grid of the oscillator valve. As the temperature of the load varies the resonant frequency of the output circuit will correspondingly vary and if the resonant frequency of the control circuit is the same as that of the output circuit 7, 10, on no load; a variation of the oscillator frequency in either direction reduces the negative bias applied to the oscillator valve and increases the output voltage of the oscillator to counteract any decrease resulting from a change in the dielectric or magnetic constants of load 9. The resonant frequency of the control circuit 14, 15 may also be adjusted to be above or below that of the output circuit on no load so that variation in the oscillator frequency in one direction produces an increase in the output voltage and variation in the opposite direction a decrease. In Fig. 3 (not shown) the oscillator is arranged for induction heating of a magnetic load, the resonant control circuit being tuned so as to reduce the output of the oscillator when the temperature of the load exceeds the point at which the load becomes non-magnetic.
Patent GB-720824-A (GB)
Title: Improvements in and relating to filament mounting method and apparatus
IPC: H01K3/06
Filed: 1953-03-18
Abstract: 720,824. Making electric incandescent lamps. BRITISH THOMSON-HOUSTON CO., Ltd. March 18, 1953 [March 20, 1952], No. 7486/53. Class 39 (2). In order to facilitate the bending of the ends of filament supporting wires about a filament fed into engagement therewith a mount making machine is provided with a lubricant applicator located at a work station preceding the curling dies and arranged to be brought into operative engagement with one side of the end portions of the filament supporting wires. The apparatus is described for use with a mount conveyer of the type disclosed in Specification 390,807, comprising a pair of jaws 5, 6, Figs. 2 and 3, which grip the lower portion of the glass arbor 7 of a mount arranged therein in such manner that the centre one of three filament supporting wires 3 is perpendicular to the path of travel of the mount 2 and the others are at 55 degrees to the centre wire. The applicator 4 comprises a hollow arcuate member containing resilient wadding or padding 10 and provided on its underside with transverse slots 9 arranged in positions corresponding to the angular positions of the filament supporting wires 3. The applicator is mounted on the upper end of a vertical rod 15 which is raised and lowered under the action of a lever 19 and slotted cam 20 below a mounting table 14, the lower end of the rod 15 being. surrounded by a compression spring 26 located between a fixed collar 27 and a slidable arm 22 secured at the upper end of a link 21 connected to the lever 19. The top face of the applicator is provided with two openings 31 which expose the interior wadding and enable it to be contacted by strips of wadding 28 at the ends of a pair of feeder tubes 29 connected to a lubricant reservoir 32 mounted on a fixed support 34. The applicator 4 is raised into contact with the feeder wadding 28 during the indexing of a mount from the lubricating position and the entry of another mount thereto. At the station following the lubricating station the ends of the three filament supporting wires 3 are curled around the ends and an intermediate portion respectively of the filament by apparatus, comprising three slides 37-39 which are moved downwardly so that a pin 40 on each of them engages the end portion of a wire 3 and bends it downwardly. whereupon three curling dies 36 attached to a common mounting block 42 are moved upwardly, first to engage the ends of the wires within vertical grooves 43 and turn them inwardly prior to their engagement by grooves 44 which curl them about a filament dropped therein by a known type of feeder arm, not shown.
Patent GB-436286-A (GB)
Title: Improvements in or relating to floor cleaning appliances
IPC: A47L11/292
Filed: 1934-03-09
Abstract: 436,286. Floor - cleaning machines. BABBS, L., 28, Albert Grove, Longsight, SKERTCHLY, E. G., 25, Mayfield Road, Eccles, BABBS, A. J., 28, Albert Grove, Longsight, both in Manchester, and GREENHALGH, S., 42, Granville Road, Pendleton, Salford. March 9, 1934, No. 7492. [Class 138 (i)] A carriage a adapted to run on the floor carries an endless mop i passing over rollers g, g<1>, and between two rollers h, k, the lower one of which drives the mop and expresses water therefrom to be collected in a tank b after passing through a filter f. The roller k is driven by an electric motor l which also drives a pump. The pump withdraws water from the tank b and delivers it through sprinkler pipes p, s<1>. Connection to the pipe p is through a flexible pipe r<1> which may instead be connected to a pipe t<1> when the machine is provided with a scrubbing brush t. The brush is detachable and is driven in the opposite direction to that of the mop. A clutch-controlled drive may be provided between the motor l and the flow wheels d. The machine is preferably provided with a surrounding apron of rubber extending to the floor and serving to enclose the water fed by the pump. The machine may be fitted with a further brush or mop for cleaning the sides or corners of a room. A teasing or opening wheel or shaking mechanism may be provided to counteract the flattening action of the rollers h, k.
Patent GB-712236-A (GB)
Title: Improvements in or relating to chain cutter jibs used in mining
IPC: E21C25/32
Filed: 1951-03-31
Abstract: 712,236. Endless-chain excavating-machines MUSCHAMP, N. J., and COWLISHAW, F. March 25, 1952 [March 31, 1951] No. 7518/51. Class 68(1) In a chain cutter jib consisting of a horizontal part and a downward or upstanding vertical part two or more sections of said jib are connected together for relative pivotal movement in order that the altitude of the free end of the vertical part may be varied. In one embodiment the free end portion 12, 13 of the jib is hingedly connected to the remaining portion of the vertical part of the jib, so as to be capable of pivotal displacement to shorten the effective length of the vertical part on removal of the structure retaining said end portion in line with the remaining portion of the vertical part of the jib. The end part 12, 13 is connected by a pivot 16 to the sliding block 14 of a screw-operated adjustment means mounted in the remaining portion of the vertical part of the jib. The adjustment means permits of a limited variation of the length of the vertical part of the jib to tension the chain. In a second embodiment the free end portion 22, 23 of the jib is slidably positioned in the remaining portion of the vertical part of the jib structure and is connected by pivoted links 24 to the sliding block of the adjustment means 21 positioned in the horizontal part of the jib.
Patent GB-1193055-A (GB)
Title: Table Ball Game.
Inventor: ZOLTANI LAJOS
IPC: A63F7/02
Filed: 1969-02-12
Abstract: 1,193,055. A table ball game. REAKTWA KISIPARI TERMELO SZOVETKEZET. 12 Feb., 1969 [14 Feb., 1968], No. 7689/69. Heading A6H. A table ball game simulates a race. Coloured 'balls are delivered to the mixing drum 2 which is turned by means of the crank 1. Once mixed, the opening 3 is opened and the balls fall into the delivery tube 5 via the funnel 4. By sliding the delivery tube 5 along the member 8, balls are deposited singly into the starting box 10. A "race" is started by depressing lever 12 which lifts gate 15 via the crank 11 and allows the balls to roll down the inclined chutes 9. After traversing the chutes 9, the balls fail into a funnel 17 provided with a baffle 20 to ensure that they collect in the transparent tube 18 in the same order as they left the chutes. Balls are returned to the mixing drum 2 by lifting the gate 19 so that they fall into the lower end of tube 21 up which they are raised by the lifting member 22 and handle 23. At the, top they roll down. chute 24 entering drum 2 via hole 25.
Patent GB-1030626-A (GB)
Title: New phenothiazineamides
IPC: C07D279/30
Filed: 1963-02-26
Abstract: The invention comprises compounds of the general formula <FORM:1030626/C2/1> wherein X1 and X2 which may be the same or different represent straight or branched chain alkylene groups having 1 to 3 carbon atoms, R represents an aliphatic, alicyclic, araliphatic, aromatic or heterocyclic acyl radical optionally substituted by halogen atoms or hydroxy, alkoxy, or tertiary amino groups, A and B represent hydrogen or halogen atoms or alkoxy radicals, their non-toxic acid addition salts and quaternary ammonium derivatives and the preparation thereof by either reacting a compound of the formula <FORM:1030626/C2/2> with a compound Q2-R (III) in which Q1 and Q2 represent groups able to react with each other to form a group of the formula <FORM:1030626/C2/3> or by esterifying a compound of the general formula <FORM:1030626/C2/4> or a reactive derivative thereof with a carboxylic acid R-OH, (VI), or a reactive derivative thereof, or by reacting a compound of the formula <FORM:1030626/C2/5> with a compound of the formula <FORM:1030626/C2/6>  Compounds of Formula V are prepared by reacting a compound of the formula <FORM:1030626/C2/7> wherein Y represents the acid residue of a reactive ester, with a piperazine derivative <FORM:1030626/C2/8>  3 - Methoxy - 10 - chloroacetylphenothiazine is prepared from 3-methoxyphenothiazine and chloroacetylchloride. Similarly is prepared 2,3-dimethoxy -10 - chloroacetylphenothiazine, and 3-methoxy- and 2,3-dimethoxy-10-(b -chloro-propionyl) phenothiazine.
Patent GB-100880-A (GB)
Title: Improvements in and relating to Fastenings for Adjusting and Securing Watch Wrist-bands and the like.
Inventor: PUDNEY FREDERICK WILLIAM
IPC: A44C5/22
Filed: 1916-05-31
Abstract: 100,880. Pudney, F. W. May 31, 1916. Addition to 26,717/12. Watch bracelets.-The slide employed to secure the end of the wristband described in the parent Specification is provided with a pin d<5> adapted to engage holes c<2> in the band.
Patent GB-678371-A (GB)
Title: Improvements relating to methods of and apparatus for producing modulating signals in television
IPC: H04N5/067
Filed: 1949-03-22
Abstract: 678,371. Television transmitters. RADIO INDUSTRIE. March 22, 1949 [July 13, 1948], No. 7817/49. Class 40 (iii). In a television transmitter, the blanking pulses upon which the line-synchronizing pulses are superposed are established at a level which is predetermined with respect to the blacksignal level by means of D.C. restoration circuit which is rendered inoperative during the blanking-signal intervals, whereby those portions of the picture signal corresponding to black in the televised scene are established at a predetermined level, the blanking signals being subsequently limited at this level or at a level having a predetermined relationship therewith. By this means, the existence of spurious signals in the output of the camera tube 1 during the blanking-signal intervals does not affect the establishment of the blanking signals at the black level. Blanking pulses 4 generated in synchronism with the fly-back times of camera-tube 1 are inverted at 5 and combined at 3 with the amplified picturesignals output from amplifier stage 2. The polarity of the output from stage 2 is such that black is represented by extensions in the negative direction and accordingly the blanking signal in the output from unit 3 extends positively into the blacker-than-black region. This output is applied to a D.C. restoring circuit 7 comprising a diode which is biased by positive-going blanking pulses from circuit 6 so that it is cut-off during blanking interval, and the diode consequently establishes the most positive-going (i.e. blackest) portion of the picture signal applied thereto at a predetermined level. The output from 7 is D.C. coupled to an amplifier stage 8 so that the black-level corresponds to a predetermined positive-potential; the output from 8 is limited at or close to this potential to fix the value of the composite video signal during the blanking intervals by means of a diode limiting circuit 9. The output from limiter 9 is then applied to circuit 10 where synchronizing pulses 11 from circuit 12 are superposed on the blanking pulses. The complete television signal is then passed to an output stage 13. A further stage 14 comprising double-diode-rectifier develops a negative bias potential by rectifying its heater supply. This potential is used to bias a D.C. restoring diode which maintains the negative peaks of the synchronizing pulses at a predetermined potential so ensuring that these pulses occur on a predetermined portion of the characteristic of output stage 13. These negative peaks, or the blanking level, may then be used as the reference level for D.C. restoration at the receiver.
Patent GB-420777-A (GB)
Title: Improvements in devices for punching and reinforcing documents or the like
IPC: B26D7/34
Filed: 1934-03-12
Abstract: 420,777. Perforating documents. WALDES, J., PUC, V., and WALDES, S., (trading as WALDES & Co.), 39, Kleine Plauensche, Gasse, Dresden, Germany. March 12, 1934, No. 7819. Convention date, April 7, 1933. [Class 31 (ii)] A perforating device in which, in the downward movement of a hand-lever, reinforcing strips are advanced, cut off, applied to documents and perforated therewith, is characterised in that the reinforcing strip p, guided in a channel m, is fed forward by feeding fingers i mounted at an inclination to the direction of movement of the punches. As the member b carrying the punches f is moved downwards on vertical guide rods d against the action of springs e by means of a hand-lever a, the spring-loaded finger i engaging the strip p is moved forwards, feeding the strip until a member k engages underneath the member b and interrupts the feed by tilting the finger i out of contact with the strip p. The knives g, h sever the strip, which is pressed onto the paper z by resilient blocks r. As these are compressed, the punches f protrude and perforate the paper. The strip may be of the kind having a permanent adhesive layer, and is prevented from moving backwards on the upward stroke by a spring l.
Patent GB-883316-A (GB)
Title: Process for the production of pockets for suspension in ring-clip books, files or the like
IPC: B29C65/04
Filed: 1958-03-11
Abstract: 883,316. Seaming. SOENNECKEN, A., [trading as SOENNECKEN, F. [Firm of]]. March 11, 1958 [March 11, 1957], No. 7848/58. Class 42 (1). Transparent pockets for insertion into ring- clip books are formed from blanks of synthetic plastic material provided with two rows of holes 2, 3, 4, 5 in opposite edges. Two blanks are folded and the holes are threaded in pins of the welding device so that the blanks are interleaved to form four thicknesses of material adjacent the area of the holes. The material is welded along an edge 12 and adjacent to the holes, the centre weld being formed by a tool which acts as a cutting-off tool so that the two blanks may be separated to form two pockets.
Patent GB-1272538-A (GB)
Title: Crossed guide microwave coupler
Inventor: BRUMBAUGH CHARLES THOMAS
IPC: H01P5/18
Filed: 1970-02-18
Abstract: 1,272,538. Directional couplers. NORTH AMERICAN ROCKWELL CORP. 18 Feb., 1970, No. 7884/70. Heading H1W A microwave energy coupler, e.g. for an antenna feed system, comprises a crossed pair of rectangular waveguides having an apertured common broad wall 12 with two spaced slotted apertures such that each aperture has a portion parallel to a respective one of the diagonals 15, 16 of the common wall. The centroids of the two slots lie on a single diameter 15 such that the ports adjacent this diameter are coupled by the slots, the frequency band width of the coupling and the degree of coupling being respectively dependent on the separation of the centroids and the length of the slots. In a second embodiment (Fig. 3), T-shaped apertures 34, 35 are provided with the lengths of the slotted portions of the apertures chosen to minimize coupling variation in the design bandwidth and the centroids of the slotted portions of each aperture lying on a respective diameter of the common wall. Inductive posts 18, 19 are added to compensate the impedance mismatch caused by the coupling apertures. Numerical values and a theoretical treatment are given.
Patent GB-492046-A (GB)
Title: Improvements in hydroplanes, seaplane floats, flying-boat hulls and other high-speedwater-craft
IPC: B63B1/22
Filed: 1937-03-18
Abstract: 492,046. Hydroplanes. SPURR, E. March 18, 1937, No. 7907. [Class 113 (ii)] The planing element of a hydroplane is connected to the hull by links so that it can move against the action of shock-absorbing devices. The planing member 6 is connected by the hull by links 8, cushioning springs 19 being inserted. In a modification, the springs 19 are replaced by torsional devices in the pivots of the links. The links 8 may be of equal or unequal lengths. Specifications 485,572 and 488,440 are referred to.