baber/WOPTO huggingface dataset:
Patent GB-605541-A (GB)
Title: Improvements relating to the perforation of sheet glass
IPC: C03B23/26
Filed: 1945-12-29
Abstract: 605,541. Perforating sheet glass. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 29, 1945, No. 35155. Convention date, Dec. 29, 1944. [Class 31(ii)] [Also in Groups XXIII and XXXVI] Sheet glass is perforated by placing the cutting rim of a metal punch thereagainst, heating the rim by induction until the glass softens, and pressing the punch through the softened glass. Fig. 1 shows a device for perforating the wall 10 of a cathode ray tube bulb, e.g., for the insertion of a contact button of the kind described in Specification 565,274, [Group XXXVI]; the rim of the cup-shaped punch 11, e.g., of nickel loosely located by a pin 14, Fig. 4, on its holder 13 within the bulb, is heated by the application of a 500-600 m.a. current at 600 kcs. to an external single turn water-cooled heating coil 15, and the punch, after being manually pressed through the glass by the handle 36, falls through the coil 15 into a water pan 18 where the surplus glass 17 is cracked off. The glass 10 is held clear of the coil 15 by an electrically non-conductive ring 19 in which the latter is mounted. To load the device,'the frame 26 is turned about its axis through 180 degrees (the range of this movement being limited by a pin 30 engaging stops 29), the holder 13 is withdrawn between the two side members 27 of the frame, and a punch is placed thereon; the bulb, pre-heated to 275-300‹C., is then placed over the frame 26. direct contact being prevented by a refractory sleeve 33, the holder 13 and the punch are raised to the position shown in dotted lines, and the frame 26 is turned back through 180 degrees, the punch sliding on the inner surface of the bulb to the fullline position shown. After perforation, the area round the hole may be heated by a gas flame to relieve stresses. The Specification as open to inspection under Sect. 91 also refers to the use of the coil 15 to seal the contact button into the hole (see Group XXXVI), and to subsequent annealing in stages. This subjectmatter does not appear in the Specification as accepted.
Patent GB-414281-A (GB)
Title: Improvements in paper containers
IPC: B65D3/14
Filed: 1933-12-14
Abstract: 414,281. Paper milk &c. vessels. MARSHALL, C. L., 683, Broadway, Newark, New Jersey, U.S.A. Dec. 14, 1933, No. 35195. Convention date, Feb. 25. [Class 66.] End closures 1 of the form shown in Fig. 1 are inserted to rest on internal shoulders 8 formed near the ends of paper milk &c. vessels, the projecting end portion of the body crimped over into the groove 5 until it is turned back upon itself at 10, the flange 3 of the closure being turned over also, producing the form shown in Fig. 2. Raised portions 6 may be provided in the closures to afford additional support for the contents.
Patent GB-959735-A (GB)
Title: Cyanoformimino ethers
Filed: 1962-09-17
Abstract: Cyanoformimino ethers are produced by reacting an alcohol with dicyanogen in the presence of a tertiary amine having at least one aliphatic group directly bonded to the nitrogen atom of the amine. Several suitable alcohols and amines are specified.  The reaction may be carried out in the presence of an inert solvent.  Examples are given.  Specification 955,453 is referred to.
Patent GB-310763-A (GB)
Title: Improvements in or relating to rotary engines, pumps and the like
IPC: F01C1/06
Filed: 1927-12-31
Abstract: 310,763. Varley, C. H. Dec. 31, 1927. Gyratory piston type. - A rotor of irregular shape and having a number of flat surfaces 8, Fig. 1, gyrates within a correspondingly shaped casing 1 and working chambers are determined by the contact of projecting pieces 10 - - 13 with the corresponding rounded surfaces 7, 9. The rotor is carried on an eccentric portion 3 of the main shaft and is guided by crank-connections 6 with the casing. The valve 14 serves as an inlet valve for an engine and an outlet valve for a pump. In the construction shown in Fig. 7, the rotor is balanced by a weight 16 and the lower surfaces of rotor and stator are shaped to provide an oil pump for lubrication purposes. The gyratory movement may be obtained by mounting the rotor and stator to rotate about parallel axes. When the stator rotates, inwardly directed packing pieces are loaded centrifugally by weighted levers.
Patent GB-464094-A (GB)
Title: Improvements relating to pipettes
IPC: B01L3/02
Filed: 1936-12-28
Abstract: <PICT:0464094/III/1> A pipette for filling accumulators &c. comprises a vessel b communicating with a rubber bulb g and with a filling tube r, and a narrow tube s within or beside the tube r and opening at its upper end into the top of the vessel b.  The tubes r, s have openings a<1>, a<2> at the side near their lower ends. The tubes may be formed into a loop as at t.  The tube s is sufficiently narrow for capillary effects to occur therein.  The pipette is filled in the usual way and retains its contents owing to the formation of a liquid seal in the narrow tube s.  In use, the lower end of the instrument is placed on a reference point, e.g. the upper edge of the accumulator plates, and the bulb is slightly compressed, blowing the liquid out of tube s. The contents then flows out until the opening a<2> becomes immersed, re-sealing the tube s and thus preventing over-filling of the accumulator.
Patent GB-1514781-A (GB)
Title: Typing machines
IPC: B41J5/14
Filed: 1975-08-28
Abstract: 1514781 Selective printing SCM CORP 28 Aug 1975 [28 Aug 1974] 35572/75 Heading B6F In a keylever action when the keylever 14 is depressed its nose 28 is removed initially from the interposer 32 which is pressed by spring 40 against the shelf 88. Continued movement of the keylever 12 causes its heel 90 to press on the spring 40 so that the interthe interposer 32 is moved clear of the shelf 88 by the spring 40 (Fig. 4) and spring 40 causes the pawl 58 to engage a tooth 62 on the power roll 60. The pawl 58 is then driven by the continuously rotating roll 60 to move actuator 64 and cause impression of a typelever 80. Repeat action is prevented because the interposer's end 54 lies below the surface 56 of the pawl 58 when the pawl has been moved by roll 60. Release of the key 12 permits spring 22 to lift the keylever 14 so that nose 28, as a result lifts the interposer 32 and recocks the spring 40.
Patent GB-1103002-A (GB)
Title: Heated curtain or curtain lining
Inventor: LEVINSON NATHAN
IPC: H05B3/34
Filed: 1966-08-09
Abstract: 1,103,002. Electrically - heated curtains. CAMEO CURTAINS Inc. 9 Aug., 1966, No. 35579/66. Addition to 1,069,714. Heading H5H. A curtain or curtain-lining as in the parent Specification is modified by the provision of conductors 54 and 55, in the lower hem, extending between a male connector 52 and a female connector 53, the heating element 50 being in parallel therewith. Thus additional panels, such as 58, may be connected in parallel instead of in series as in the parent case.
Patent GB-453441-A (GB)
Title: Improvements in means for automatically regulating a physical condition
IPC: G05D23/20
Filed: 1934-12-11
Abstract: 453,441. Automatic control systems. REINEKE, J. H., 26, Castroperstrasse, Bochum, Westphalia, Germany. Dec. 11, 1934, No. 35596. [Class 38 (iv)] [See also Group XXXVIII] Variables in general.-In means for automatically regulating a physical condition wherein two keys 56 are alternatively actuated by an intermittently actuated member 4 depressing a pointer 3 responsive to the condition, when a key, such as 5, is depressed to energize a relay to effect correction, the circuit of a heating coil on a bimetallic element 14 which carries the key is also closed. The key is moved by the distortion of the element 14 in the direction of the deflection of the pointer so that the number of depressions of the key will vary with the extent of the deflection. The valve 20 can thus be actuated by a sensitive galvanometer without over correction. The rate of heating and of cooling of the bimetallic strips may be adjustable.
Patent GB-1235475-A (GB)
Title: Improvements relating to textile fibre drafting mechanisms
Inventor: NOGUERA JOSEPH
IPC: D01H5/72
Filed: 1967-08-03
Abstract: 1,235,475. Guides for drafting mechanisms. CASABLANCAS Ltd. 29 July, 1968 [3 Aug., 1967], No. 35671/67. Headings DID and DIN. Immediately preceeding the inlet rollers 2 of a drafting mechanism is positioned a guide having guide surfaces which move along by the fibres confined therebetween. The guide surfaces resist the movement of the fibres so that they are paid out from the guide under tension. The guide surfaces may be formed by the curved surfaces of a pair of co-operating rollers 3 rotatably mounted on pins 4 carried by a bracket 5, a guide funnel 7 being optionally present. Pins 4 may be vertical as shown, or inclined, or parallel with the axes of rollers 2. Mechanism may be provided for braking the rotational movement of the rollers, which may be resiliently urged together. Alternatively the guide surface may be the co-operating runs of a pair of endless belts 10 moving around a stationary or rotating support. An adjustable member associated with each belt may vary the braking effect of the belt movement.
Patent GB-511258-A (GB)
Title: Improvements relating to filters
IPC: A62B23/04
Filed: 1938-12-07
Abstract: 511,258. Air filters. SUTCLIFFE, E. R. Dec. 7, 1938, No. 35736. [Class 8 (ii)] A filter unit for supplying air to air raid shelters comprises a bed of activated charcoal &c. held between lower coarse and fine screens 8, 9 and an upper screen 12 supported by a flange 10 and an angle iron 12 and held down by a bolt 13 ; a flange 14 prevents creeping of the air along the sides. Above the screen 12 a pad of wool and asbestos is provided and above this a slidable prefilter screen 21. Between the material and the inlet 4 and outlet 5 are provided perforated distributing plates 6, 7. Two or more such filter units may be provided between inlet and outlet conduits, a valved by-pass allowing direct air flow. The air may be drawn through by a fan driven by an electric motor or by pedals. If bellows are used in place of a fan, an air accumulator may collect the cleaned air for supply to the shelter.
Patent GB-522436-A (GB)
Title: Improvements in or relating to magnetic compasses
IPC: G01C17/00
Filed: 1938-12-08
Abstract: 522,436. Magnetic compasses. SPERRY PRODUCTS, Inc. Dec. 8, 1938. No. 35826. Convention date, Jan. 21. [Class 97 (ii)] In order substantially to eliminate errors due to the effect of the vertical component of the Earth's magnetic field during the initial stages of a turning movement of the supporting aircraft, the movable system of a magnetic compass has a long undamped period of oscillation. The compass card may carry an annular metal ring to increase its movement of inertia or the magnets may be of low strength. The Figure shows the compass errors which occur whilst an aircraft is making a turn through 360 degrees at a banking angle greater than the complement of the angle of dip. Curves 51, 52, for cards having undamped periods of 6 and 12 seconds respectively, show that the cards turn in the direction in which the aircraft turns from the beginning of the turn. Curves 53, 54, 55, for cards according to the invention having undamped periods of 60, 120, 180 seconds respectively, show that the card does not turn with the aircraft during the initial period 32 of the turn. Further increases of the undamped period to 360 and 600 seconds (curves 56 and 57 respectively) provide cards which give a substantially correct reading throughout the turn.
Patent GB-758327-A (GB)
Title: Dielectric antenna with dielectric feed means
IPC: H01P3/16
Filed: 1954-12-13
Abstract: 758,327. Waveguides. MARIE, G. R. P. Dec. 13, 1954 [Dec. 14, 1953], No. 35984/54. Class 40 (8). [Also in Group XL (c)] An aerial system is fed from a metallic waveguide through a junction with a tubular dielectric guide which is then cut along a generatrix at a point along its length and opened out flat. The flat strip is divided to give a plurality of flat dielectric strips whose ends are either the primary radiating elements or are attached to further dielectric radiating means. If the metallic guide is rectangular, coupling to the tubular dielectric guide is effected by splitting the dielectric guide 4 lengthwise at 5, opening it out flat at 6 and terminating it by clamping it between the two halves of a horn 3 attached to the end of the metallic guide. With a circular metallic guide 10 the end of the dielectric guide 13, Fig. 4, is divided to form three strip guides 16, 17 and 18, which are secured in a cylindrical sleeve 12 formed where a horn 11 is attached to the guide 10. The tubular dielectric guide is split longitudinally at some point along its length and opened out flat and the flat guide can be subdivided into two by bisecting it either along its greater or smaller cross-sectional dimension (Figs. 5 and 6, not shown). Where it is desired to divide the flat guide into four the junction arrangement shown in Fig. 8 is used. Here pairs of guides are stuck to each side of the original guide 47 with edges at right angles stuck to each other as at 50, the secondary guides are opened out flat as they extend from the junction.
Patent GB-1147416-A (GB)
Title: Improvements in or relating to the manufacture of o,o-dimethyl-o-(2,2-dichlorvinyl)-phosphate
Inventor: PIMPER RUDI
IPC: C07F9/113
Filed: 1967-08-05
Abstract: 1,147,416. Preparing O,O-dimethyl-O-(2,2- dichlorovinyl)-phosphate. FETTCHEMIE VEB. 5 Aug., 1967, No. 36048/67. Heading C2C. O,O - dimethyl - O - (2,2 - dichlorovinyl) - phosphate is obtained by reacting 2,2,2-trichloro-1 -hydroxyethyl phosphonic acid dimethyl ester dissolved in an organic solvent which is immiscible or only slightly miscible with water, in a reaction vessel with one or more alkalinereacting compounds in an aqueous medium, the liquid components being rapidly agitated, and withdrawing the said phosphate product dissolved in the organic solvent, and the aqueous medium, from the reaction vessel. The reaction components are preferably fed continuously to the reaction vessel and the phosphate product dissolved in the organic solvent, and the aqueous medium continuously withdrawn from the vessel. The reaction temperature is suitably between 0‹ and 60‹ C., preferably 20‹ C. Specified alkaline-reacting compounds are sodium and potassium hydroxides, sodium carbonate, ammonia and triethylamine and specified organic solvents are aliphatic and aromatic chlorinated hydrocarbons, e.g. CHCl 3  and chlorobenzene, aromatic hydrocarbons e.g. benzene and carboxylic acid esters, e.g. ethyl acetate.
Patent GB-1516117-A (GB)
Title: Fluoroaliphatic terpolymers
IPC: C08F220/22
Filed: 1975-09-02
Abstract: 1516117 Fluorine - containing polymers MINNESOTA MINING & MFG CO 2 Sept 1975 [3 Sept 1974] 36159/75 Heading C3P A hydrocarbon soluble, oil and water repellant thermoplastic terpolymer comprises the monomers : (A) a fluoroaliphatic vinyl monomer containing at least 25 wt. per cent F in the form of a fluoroaliphatic radical terminating in at least one CF3 group and containing in the chain a total of at least 3 saturated fully fluorinated carbon atoms and not more than one atom of H or Cl for every 2 atoms of the chain; (B) an aliphatic hydrocarbyl vinyl monomer containing 8-20 C aliphatic hydrocarbyl groups and (C) at least 25 wt. per cent of the monomer mixture of a monoto di-acrylate or methacrylate of polyoxypropylene diol or polyoxytetramethylene diol of MW 750-4000. The fluoroaliphatic monomer is preferably an acrylate or methacrylate, e.g. N-methyl perfluorooctanesulphonamidoethyl acrylate. Monomer B is preferably stearyl methacrylate and monomer C is preferably a monoto di-methacrylate of polyoxytetramethylene diol of MW 1500-2500.
Patent GB-1215636-A (GB)
Title: Electric control systems for motors
Inventor: EVANS DAVID CHARLES
IPC: H02P7/285
Filed: 1968-07-30
Abstract: 1,215,636. Automatic speed control. ENGLISH ELECTRIC CO. Ltd. Oct.30, 1969 [July 30, 1968], No.36305/68. Heading G3R. A motor control system comprises a shaping circuit A1, I1, which smooths signals passed through it, and a summing circuit A2 fed from the shaping circuit through a diode D1 and fed with a speed reference signal V REF , the output of the circuit A2 controlling the motor. The circuit A1, I1 can be driven by a signal fed back over line 12 from the output of the circuit A2 to balance the signal V REF  and halt the motor, or with a negative saturating signal which causes the diode to cut off the signal from the circuit A1, I1, so that the motor operates at a speed determined solely by the signal V REF . When switches S1, S2 are in the positions shown, feedback line 12 is effective whereby the speed reference signal is balanced by the output from integrator I1, diode D1 being forward biased. The motor is halted in this state. The feedback path 12 is disabled when switch S2 is changed-over, the reference signal being opposed by the output of the integrator I1 which is fed over line 13 to the input of amplifier A1. These two signals cancel each other but the amplifier A1 receives a small signal over resistor R1 so that amplifier A2 is fed with a resultant demand signal which is sufficient to drive the motor at a low speed. The motor is operated at a higher speed by changing switch S1 from the position shown to disable the feedback path 13, while switch S2 is in the indicated position. A large signal is applied through resistor R2 to the input of amplifier A1 which saturates to a positive limit, and integrator I1 is driven to produce a large negative output whereby diode D1 is cut off. The only signal applied to amplifier A2 is the speed reference signal which may be distributed over line 14 to other control systems whereby a number of motors operate at matched speeds. Resistor R1 is shunted by resistor R3 for an increase in the low speed. Amplifier A1 comprises operational amplifier OA1 with feedback resistor R4, and diodes D2, D3, associated with resistors R5-R6 which determine the positive and negative output limits. Integrator I1 comprises operational amplifier OA2 and feedback capacitor C1. Diode D4 prevents further integration when the output of the unit I1 goes negative and diode D1 cuts off. The amplifiers A2, A3 are combined and comprise summing resistors R9-R11, and operational amplifier OA3. Line 11 transmits the signals from a tachometer generator ME1 to the amplifier A3.
Patent GB-522715-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02K17/08
Filed: 1938-12-14
Abstract: 522,715. Induction motors. MATTHEWS & YATES, Ltd., and BRAY, A. Dec. 14, 1938, No. 36416. Drawings to Specification, [Class 35] In an installation comprising a fan or other load which increases very rapidly with the speed driven by an induction motor having a phasesplitting condenser permanently in series with an auxiliary winding across the supply, the main winding is divided into two sections, which can be connected either in series or in parallel during the running of the motor.
Patent GB-374435-A (GB)
Title: Means for rescuing the crews of submarines
IPC: B63G8/41
Filed: 1930-12-04
Abstract: 374,435. Hydraulically operating doors. GENOVA, A., 50, Calle de Alfonzo XII, Madrid. Dec. 4, 1930, No. 36581. [Class 65 (i).] In means for rescuing crews of sunken submarines of the kind comprising a detachable buoy housed in a watertight chamber in the submarine and capable of being released to carrv a man to the surface and then to be hauled back by a winch &c., the hatch cover b is linked to one or more pistons e in cylinders V and is opened or closed by opening one end of the cylinder to the external water and the other to the atmosphere in the submarine ; alternatively, a pump or the compressed air supply of the submarine may actuate the pistons e. For rescue of the last man a slow flooding valve is provided to flood the chamber E and a valve 15 giving communication between the chamber and the cylinders V, the buoy bearing against the cover b to assist in opening the latter.
Patent GB-937857-A (GB)
Title: Improvements in or relating to rotary couplings of the kind comprising elements which can move relatively to each other only axially
IPC: F16D3/06
Filed: 1961-10-12
Abstract: 937,857. Tapping apparatus. INGENJORSFIRMA A. ALFREDEEN A.B. Oct. 12, 1961 [Oct. 13, 1960], No. 36602/61. Class 83 (3). [Also in Group XXIV] In a holder for a screw-threading tap of which the driving and driven members 11, 24 are coupled together by groups of balls 26 located in complementary axial grooves 23, 25 in the respective members, the groups of balls are each retained in position by a metal band 30, Fig. 4. The upper end of the band is secured to the driven member 24 by a ring 34, the band passing downwards between the member and  the balls, and around the lowermost ball, the lower end being secured to the driving member 11 by a second ring 35. By this means the groups of balls maintain the same axial position relative to the members 11, 24 if ball detents 10 loaded by springs 15, 16 slip upon overload, resulting in axial displacement of members 11, 24. A manually adjustable ratchet ring 19 enables the force exerted on the detents 10 by a loading spring 21 to be varied. Two bands, Fig. 5 (not shown), or a series of threads or wires may be used instead of the single band.
Patent GB-328272-A (GB)
Title: Improvements in the manufacture and production of potassium nitrate
IPC: C01D9/12
Filed: 1928-12-12
Abstract: 328,272. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec. 12, 1928. Ammonia; ammonium compounds containing metals.-In obtaining potassium nitrate by the reaction of calcium nitrate and potassium chloride, ammonia is added to the solution before the saparation of potassium nitrate to increase the yield, and preferably also after such separation, thereby precipitating calcium chloride as CaCl2.6NH3 and allowing the liquors to be worked up to obtain more potassium nitrate, or to be used for the conversion of fresh amounts of the reactants. By heating the addition compound of calcium chloride with ammonia, calcium .chloride and ammonia are obtained, the recovery of pure ammonia from gaseous mixtures containing ammonia resulting if such mixtures are used in the process. In an example potassium chloride is added to a solution of calcium nitrate. After cooling to 0‹ C., whereupon a part of the potassium nitrate separates, gaseous ammonia is passed in whereupon further potassium nitrate separates. The remaining solution is saturated with ammonia at 0‹ C. under a pressure of five atmospheres whereupon CaCl2.6NH3 separates. According to one of the Provisional Specifications ammonia may be separated from gases containing it by passing such gases through solutions of other salts capable of forming addition compounds with ammonia, such as salts of calcium or magnesium.
Patent GB-1209560-A (GB)
Title: Antidandruff compositions
Inventor: AUBIN GUY
IPC: C07C323/44
Filed: 1968-08-01
Abstract: 1,209,560. Anti-dandruff shampoos. L' O'REAL. 1 Aug., 1968 [1 Aug., 1967], No. 36790/68. Heading A5B. [Also in Division C5] Hair shampoos for combatting dandruff comprise a detergent and, as active product, at least one of arginine, histidine or lysine, or an inorganic or organic acid salt thereof, or an ester thereof. Salts may be formed with citric, nicotinic or malic acid and esters with aliphatic or aromatic alcohols, e.g. the methyl ester of lysine. The shampoo may have a pH of at least 6 such as 8.5) and contain 0.2 to 5% by weight of the active product. The shampoo may also contain a penetrating agent, surface active agent, perfume, dye, gloss-producing agent and known antidandruff agents (such as bactericidal agent, e.g. cetrimonium bromide).