baber/WOPTO huggingface dataset:
Patent GB-1189155-A (GB)
Title: Transistor Ignition Device for Internal Combustion Engines
Inventor: LOMBARDINI ARNALDO
IPC: F02P3/04
Filed: 1967-04-27
Abstract: 1,189,155. Ignition systems. LOMBARDINI FABBRICA ITALIANA MOTORI. April 27, 1967, No.19553/67. Heading F1B. Ignition apparatus for internal-combustion engines includes a generator having a primary winding 12, a transformer T having a primary winding P 1  a first secondary winding S 1  and a second secondary winding S2, a first transistor TR 1 , the primary winding 12 of the generator, the primary winding P 1  of the transformer and the first transistor TR 1  being connected in series circuit, a second transistor TR 2 , the first secondary winding S 1  of the transformer providing base current for the first transistor and a Zener diode Z 1  connected to the second secondary winding S 2  and the second transistor TR 2 , the second transistor being operative to control, when the breakdown voltage of the Zener diode is exceeded, the conductive state of the first transistor.
Patent GB-498841-A (GB)
Title: Improvements in the production of synchronizing signals in television transmitters
IPC: H04N5/06
Filed: 1937-07-15
Abstract: 498,841. Television. RADIOAKT.- GES. D. S. LOEWE. July 15, 1937, No. 19631. Convention date, July 16, 1936. [Class 40 (iii)] To produce a synchronizing signal, a scanning beam of light 1<1> impinges at the end of each line on a reflector 6 along one side of a screen 13 and is reflected to a separate photo-electric cell 8, which has a polarity inverse to that of a photo-electric cell 4 receiving light directly from the scanning beam. A circumferential slot in the scanning disc 31 produces the framing signal by co-operation with a small aperture in a diaphragm 14. A light-absorbing plate reduces the intensity of the light passing through the slot to that of the light passing through the scanning apertures 1. The synchronizing signals are equalized by a resistance bridge Fig. 3, one side of which consists of a triode 17, with its grid as the input, and of its anode resistance 19. The other side is composed of a potentiometer 18, and the diagonal consists of a diode 21 and an impedance 20, from which the output is obtained.
Patent GB-1311579-A (GB)
Title: Material handling truck with removable drive unit
IPC: B62D33/00
Filed: 1971-06-09
Abstract: 1311579 Vehicles ALLIS-CHALMERS MFG CO 9 June 1971 [10 June 1970] 19648/71 Heading B7H A fork lift truck which may be pedestrian controlled has a readily removable, vertically pivotable drive unit 11 which comprises an electric motor 21 mounted on a housing 22 to drive ground wheel 23 via gearing not shown. The truck has a main frame 12, which carries battery 19 for motor 21, an elevatable platform 13 provided with two arms 14, 16 which may be supported by wheels 17, 18 and a horizontal wall 36 which has a slot 39 which receives housing 22 of the drive unit 11. Thrust bearing 31 on housing 22 is releasably attached to wall 36 to form an upper bearing for the drive unit while the lower bearing comprises a pin 41 located between motor 21 and wheel 23 which is held in a bearing recess in bracket 44 by means of a releasable cap 47. A tiller arm 26 for steering the truck is attached to the upper end of drive unit 11 for rotation about horizontal axis 27. Drive unit 11 is partially enclosed by doors 51, 52 and protected by bumpers 58, 59, 61.
Patent GB-628350-A (GB)
Title: Improvements relating to fountain pens
IPC: B43K23/12
Filed: 1947-07-23
Abstract: 628,350. Reservoir marking instruments. SPEEDRY PRODUCTS, Inc. July 23, 1947, No. 19760. Convention date, Feb. 4, 1944. [Class 146 (iii)] A fountain pen comprises a barrel 10 forming an ink reservoir, absorbent material 24 filling most of the space within the barrel but leaving an air space 25 within it, and a nib 22 of absorbent material carried in a nib holder 18 at one end of the barrel 10 and having its inner end projecting into contact with the absorbent filling 24. A glass lining 12 is provided for the reservoir and to avoid breakage, a cushion disc 13 is placed between the end of the barrel and the lining. The absorbent filling 24 and nib 22 are made of felt and a washer 20, also of felt, is placed between the glass lining 12 and the nib holder 18, which screws into the barrel 10, the inner end of the nib 22 being cut at an angle and squeezed against the inside of the washer 20 and in contact with the filling 24. The air space 25 extends longitudinally of the filling 24 and is closed at the upper end by the washer 20. The cap 26 is provided with a felt member 30 having a bore 32 fitting the nib holder 18, but so that the felt is not in contact with the nib 22, excess ink only being absorbed thereby.
Patent GB-993760-A (GB)
Title: 11,12-epithiosteroids of the pregnane series and their preparation
IPC: C07J71/00
Filed: 1963-05-17
Abstract: The invention comprises compounds of formula <FORM:0993760/C2/1> wherein A and A1 each represent a methylene group, a carbonyl group, a ketalated carbonyl group, a hydroxymethylene group or an acyloxymethylene group, and there can be a double bond between the 5-position and the 4- or 6- position, and their preparation from the corresponding 11,12-epoxy compounds by reaction with thiocyanic acid to give a thiocyanatohydrin, acylating the hydroxy compound formed, and reacting the product with a base, the groups A and A1 being protected where necessary.  The compounds of the invention have anti-desoxycorticosterone acetate activity.  3,20 - Dioxo - 11a ,12a - epoxy - pregnane and 11a ,12a  - epoxy - progesterone are prepared by treatment of the corresponding 11,12-unsaturated compounds with perphthalic acid. Specification 943,220 is referred to.
Patent GB-821333-A (GB)
Title: Improvements in self-supporting structures using pre-tensioned elements
IPC: E04B7/14
Filed: 1956-06-27
Abstract: 821,333. Roofs. JAWERTH, K. D. R. June 27, 1956 [July 8, 1955], No. 19865/56. Class 20(4) A roof truss, Fig. 1, comprises a pair of cables 2, 3 anchored at their ends F1-F4 to walls or columns 1, 1a and interconnected by a secondary cable 4 which is tensioned and anchored so that the cables 2, 3 assume a concave - convex configuration. T h e cables 2, 3 are provided with a number of pulley blocks 5 through which the cable 4 passes and after the latter has been tensioned it is wedged to the pulley blocks. The cable 4 may be tensioned at each end or at one end only. A series of parallel trusses may be braced by a cable secured to the midpoint of each cable 3 and connected at its ends to both walls 1, 1a. In a modification, Fig. 3, each truss, except the end ones, is inclined to the vertical, the trusses A, B, C, being oppositely inclined from trusses A1, B1, C1. The cables 2, 3 may be replaced by a number of rigid stays or the secondary cable 4 may be replaced by a series of rigid stays in which case the truss may be tensioned by tensioning the cables 2, 3.
Patent GB-1069086-A (GB)
Title: Improvements relating to airflow direction indicators
Inventor: PITCHES BRIAN EDWARD
IPC: B64D45/00
Filed: 1964-05-13
Abstract: 1,069,086. Stall warning indicators. FERRANTI Ltd. May 6, 1965 [May 13, 1964], No. 19873/64. Heading B7W. [Also in Divisions F2 and G1] Apparatus for measuring the direction of airflow past an aircraft to give an indication of an impending stall, comprises a hollow probe rod 11 (Fig. 1) protruding through a flexible diaphragm 12 let into the fuselage of the aircraft, the inner end of the rod being attached to the slider of a potentiometer 19 extending perpendicular to a flexible ligament 16 attaching the rod 11 to an annulus 18. When the external end of the rod is deflected by the air flow it pivots about the diaphragm 12 and the inner end is displaced perpendicular to the ligament, producing an output signal from the slider of potentiometer 19. This signal is fed to a motor 20 which rotates the annulus-ligament-potentiometer assembly until the ligament is in line with the air flow, when the slider of the potentiometer is again central. A dashpot type damping device (Fig. 2) is mounted on the rod 11 between the diaphragm 12 and the annulus 18, preferably with the vanes 21, 22 coplanar when the angle of attack is close to the stalling value.
Patent GB-1200983-A (GB)
Title: Improvements in and relating to closures for containers of tetrahedral packages
Inventor: MEUX TERENCE KENNEDY
IPC: B65D5/68
Filed: 1968-04-26
Abstract: 1,200,983. Lid for tetrahedral package container. TETRA PAK Ltd. 17 Jan., 1969 [26 April, 1968], No. 19885/68. Headings B8C and B8P. The lid of a container of hexagonal crosssection for use with tetrahedral packages is made from a blank comprising a first hexagonal panel 1 hinged by a flap 2 to a second hexagonal panel formed by six triangular areas 3 and a small triangular cut-out 6. Alternate sides of each panel are provided with hinged flaps 7-11. In use, panel 1 is hinged about flap 2 to lie above but spaced from the second panel, the second panel is then distorted towards the first panel by contacting and securing the edges of the cut-out 6. Finally, the flaps are bent upwardly or downwardly to form the sides of the lid. The distortion of the lower panel enables the lid to accommodate the shaped surface formed by the packages in the container and to prevent their displacement during transport of the container.
Patent GB-960907-A (GB)
Title: Improvements in or relating to coin freed beverage dispensing machines
Inventor: MAXWELL STEWART ALFRED
IPC: G07F13/06
Filed: 1961-06-02
Abstract: 960, 907. Coin-freed apparatus. FISHER & LUDLOW Ltd. July 2, 1962 [June 2, 1961], No. 19898/61. Heading G4V. A coin-freed beverage dispensing machine comprises a cup-dispensing unit 15, Fig. 1, and a unit 17 for dispensing dry commodities, such as powdered milk and sugar, both mounted on a single removable shelf 18. Removal of the shelf with its units permits a second shelf with different units to be fitted in the machine so that, for example, either tea or coffee may be dispensed by the machine. The machine has a mains water tank 12 which is connected to a boiler 10 having an immersion heater 11 and a pump 13 for maintaining a constant pressure in the machine. The shelf 18 is disposed above a delivery station 14 and has runners at its sides engaging guides 20 for easy insertion and removal of the shelf. The cup-dispensing unit is in the form of a turret-type magazine 28 and is mounted on a rotatable spindle 27, Fig. 3, at the front of the shelf above a cup drop mechanism 43. The dry commodity unit is mounted at the rear of the shelf and has a number of containers 34 rotatable by electric motors 33, Fig. 4, (which shows the underside of the shelf) to bring discharge openings 35 above a conical guide 32 leading to a mixing vessel 36 connected by a discharge pipe 32 to the delivery station 14. When the machine is used for dispensing tea, a refrigerated container for milk may be provided and after each dispensing operation a charge of hot water is supplied to the milk delivery channel for cleaning thereof. The front of the machine carries a coin selector mechanism which, upon insertion of the correct coinage, operates a setting-up relay in series with operating buttons permitting the selection of various combinations of the commodities whereby only selected containers 34 are rotated to discharge their contents. A cup is also delivered to the opening 14 and the selected commodities and hot water are discharged into the cup and hot water is supplied to the liquid milk channel when liquid milk is used. The hot water circulating system is as described in Specification 960, 908 and has a bleed valve for removing air from the water before it reaches a dispensing valve. A sleeve 38 is located by a pair of springs 40 on the conical guide 32 and has a pair of diametrically-opposed openings 41 aligned with a fan 42 which deflects steam rising from the mixing vessel and maintains the guide 32 and dispensing unit 17 dry. When the machine is used for dispensing coffee, for which powdered milk is used, the insertion of the appropriate shelf automatically renders a metering valve and the refrigerator for the liquid milk inoperative. 9
Patent GB-134394-A (GB)
Title: Improvements in or relating to Web-roll Mechanisms for Printing Presses or other Web Machines.
IPC: B65H19/18
Filed: 1918-12-02
Abstract: 134,394. Goss Printing Press Co., (Goss Printing Press Co.). Dec. 2, 1918. Feeding webs.-Web roll changing-mechanism for printing or other machines comprises means for rotating the new roll at the same surface speed as the running web and tapes to which the end of the new web is attached, adapted, when the new roll is rotated, to carry the end of the new web into contact with the running web. As shown, a frame 10 arranged beneath the press room is provided with bearings 15, 16 for two rolls 11, 12. The running web 19 passes round a guide-roller 20 to the bite of rollers 22, 23 carrying tapes 26, 27 which feed the web to the printing &c. machine. The end of the new web passes round a guide-roller 34 and is attached by paste or pins to tapes 41, which are attached at their ends to shafts 37, 38 and pass round the rollers 34, 22. The shaft 37 is provided with a spring tending to wind the tapes 41 thereon but too weak to rotate the roll 11. The shaft 38 is provided with a weaker spring tending to retract the tapes and also with a cord drum by which it may be turned to wind the tapes thereon. A latch pawl 49 normally holds the shaft 38 to prevent winding of the tapes on the shaft 37. The means for rotating the roll 11 comprises belts 62 passing round upper pulleys 63 and lower pulleys 61 which are fixed to sleeves loose on a rock shaft 60. The sleeves are driven constantly by gearing 57, 58, 54 and shaft 53 from the press, so that the belts 62 run at the same surface speed as the running web. The arm 64 supporting the upper pulleys 63 is secured to the shaft 60 which is provided with a toothed sector 66 meshing with a gear 67 provided with an operating handle 68. When the running web has nearly expired, gum is applied to the end of the new web which has been previously attached to the tapes 41 and the shaft 38 is released from the latch pawl 49. The handle 68 is then given an upward turn tn bring the belts 62 into contact with the roll 11. The roll is then unwound and the spring on the shaft 37 winds the tapes 41 drawing forward the end of the new web into the bite of the rollers 22, 23, by which it is caused to adhere to the expiring web 19. The web 19 is then severed by a knife 82 carried by a shaft 83, which may be rocked in either direction by cords 85, 86 to bring the knife into severing contact with the web to be cut. A new roll is then substituted for the expired roll 12, and is subsequently attached to the expiring web from the roll 11 by means of tapes 46, belts 77, and associated parts similar to those above described in connexion with the upper roll.
Patent GB-945005-A (GB)
Title: Improvements in and relating to omegatrons
Inventor: BLOOM MARTIN S
IPC: H01J49/34
Filed: 1960-06-07
Abstract: 945,005. Mass spectrometers. IMPERIAL CHEMICAL INDUSTRIES Ltd. May 17, 1961 [June 7, 1960], No. 19926/60. Heading H1D. A cyclotron resonance mass spectrometer or "omegatron " comprises a metal electrode block 1 to which are secured other electrodes. As shown a bracket 3 supports the metal box structure forming the four walls of the ionization and mass selection zone and also the radio frequency plate 11, the electron emitting filament supports 14, the filament back plate 18 and the electron collector 19. The walls 6 and the radiofrequency plate 11 are fixed to the bracket 3 and the bracket 3 and other elements to the block 1 by screws or nuts and bolts. Insulating sapphire washers are provided, each washer being located in recesses in the two parts which it separates. Spring washers are also provided. The block 1 forms the grounded radio-frequency electrode and the ion collector lead and support 23 passes through a hole 24 in the block. The block is attached to the end of a tube 2 which is fixed in position by a push fit on a member secured to the omegatron base. Specifications 906,498, 906,499 and 945,004 are referred to.
Patent GB-1269080-A (GB)
Title: Ventilator structure
IPC: F24F7/00
Filed: 1969-04-18
Abstract: 1,269,080. Pivots. AMERICAN METAL CLIMAX Inc. 18 April, 1969 [15 May, 1968], No. 19987/69. Heading E2F. [Also in Division F4] In a ventilator, a pivoted flap carries a pair of hinge pins 44 each spring biased outwardly to project into a hinge opening 46 and retractable by a handle 47 that extends through a slot 48 in the flap to permit removal of the flap for cleaning.
Patent GB-1341101-A (GB)
Title: Air cooled coaxial magnetron having an arrangement of cooling fins
IPC: H01J23/00
Filed: 1971-04-19
Abstract: 1341101 Magnetrons VARIAN ASSOCIATES 19 April 1971 [22 Jan 1970] 20078/71 Heading H1D An air-cooled coaxial magnetron has a structure of high thermal conductance-as shown, a copper annulus 29-extending axially from one end of the anode wall 7, and forming the support for the inner ends of an array of radially directed fins 31, a further axially directed copper member 34 interconnecting the outer ends of the fins, and the members 29 and 34 being thermally connected by a radially directed annular copper member 36, to form inter-fin passages through which air is blown from an intake 33. A carbonimpregnated alumina ceramic mode absorber ring 25 is held at the upper end of the interaction region 9 by copper members 26 and 27; the outer resonator 11 is tuned by the axial movement of an annular member 13 the position of which is adjustable by a pair of plungers 14, and the fins are arranged in pairs each member of each of which is in the form of a 130 degree sector, to leave a pair of diametrically opposed spaces for the plungers. In an alternative arrangement (Fig. 3, not shown) the cathodesupported by a circular array of insulators (62)- surrounds the interaction region, and the anode wall surrounds the coaxial cavity.
Patent GB-871443-A (GB)
Title: A process for the preparation of polyamidic copolymers
IPC: C08G69/08
Filed: 1959-06-12
Abstract: Polyamidic copolymers are prepared by copolymerizing 2- hydroxy- 6-aminohexanoic acid, or the lactam thereof, with other bifunctional substances capable of forming polyamides (e.g. caprolactam, e -aminocaproic acid, o -aminoundecanoic acid, hexamethylenediammonium adipate and hexamethylenediammonium sebacate).  The copolymerization is preferably conducted in the presence of 0,5% to 5% by weight of water and under a pressure of up to 10 atmospheres.  The copolymers may be cross linked by melting them under conditions for promoting the removal of water from the polymer chain, e.g. by melting them in a vacuum or in a stream of dry, inert gas.  The copolymers may be formed into fibres, yarns and fabrics, the properties of which may be improved by effecting the formation of a chemical bond between the free hydroxyl groups of the copolymer by subsequent treatment with a dicarboxylic acid or anhydride (e.g. maleic acid or anhydride) under esterification conditions, or by treatment with other bifunctional compounds capable of reacting with the hydroxyl groups (e.g. diisocyanates).ALSO:2-Hydroxy-6-aminohexanoic acid is prepared by hydrolysing a 2-chloro- or 2-bromo-6-acylaminohexanoic acid in two stages, viz. using alkali to obtain an intermediate 2-hydroxy-6-acylaminohexanoic acid, followed by hydrolysis with mineral acid to remove the acyl (e.g. benzoyl) group.  The lactam of 2-hydroxy-6-aminohexanoic acid may be prepared by vacuum distilling the parent acid.
Patent GB-587370-A (GB)
Title: Improvements in or relating to arrangements for inverting the contrast of televisionsignals
IPC: H04N5/202
Filed: 1944-10-18
Abstract: 587,370. Television. CINEMA-TELEVISION, Ltd., and NUTTALL, T. C. Oct. 18. 1944, No. 20190. [Class 40 (iii)] Signals derived by scanning a picture negative are inverted to produce a positive picture with correct contrast, in an arrangement including in cascade connection a logarithmic amplifier 2, which may be as described in Specification 514,401, an inverter stage 6 and an exponential amplifier 9. The repeater 4 between 2 and 6 which has a cathode load 5 and operates on the bottom bend of its characteristic provides for distortion corresponding to that represented by the " toe " of the Hand D curve of a photographic positive emulsion, the negative feedback straightening the characteristic as the current rises. Signals from amplifier 9 are fed through an inverter stage 11 to the picture reproducer 12. The valve 13 is pulsed with signals of mask waveform to drive valve 9 to anode current cut-off, this level representing " white " in the signals applied to 12. Amplifier 11 may thus be A.C. coupled and followed by a D.C. reinserting device 14. The controls afforded at 1, 5 and 10 correspond respectively to exposure control, control of development time, and control of light intensity in photography and may be graduated accordingly. Variation of bias 3 for stage 4 may be used instead of or as well as control 1, but this requires a wider range of operation in 2.
Patent GB-334316-A (GB)
Title: Improvements in or relating to electric lighting installations
IPC: H05B41/234
Filed: 1929-07-01
Abstract: 334,316. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). July 1, 1929. Supplying consuming devices. - A luminous tube with solid electrodes 11 is provided with unidirectional current at a voltage which does not fall tq the value at which the discharge is interrupted from a three-phase supply through a rectifying device 9, the cathode of which is heated from an auxiliary winding of the transformer 1-2. Each phase of the secondary 2 supplies an anode 8 of the device 9 through limiting resistances 7. One pole of the tube is connected to the earthed midpoint of the secondary winding 2 and the other pole to the mid-point of the auxiliary winding 3, supplying the cathode heating current.
Patent GB-392012-A (GB)
Title: Process for the manufacture of new water-insoluble dyestuffs
IPC: C09B29/20
Filed: 1932-07-18
Abstract: Azo dyes are made on the fibre by coupling diazotized 2-aminodiphenylsulphone with an arylide of the formula: <FORM:0392012/IV/1> in which x = alkyl or alkoxy and y = hydrogen or alkoxy or chlorine in such a manner that x and y are different from each other and y is only hydrogen when x = alkoxy.  Orange shades are obtained.  In an example the following coupling components are used: the o-anisidide, the 2-methoxy-4-chloranilide, the 2-methyl-4-methoxy- and 2-methyl-4-chloranilides.  Specifications 6379/12, [Class 2 (iii), Dyes &c.], and 17279/13, [Class 15 (ii), Dyeing, Processes &c. for], are referred to.  The Specification as open to inspection under Sect. 91 comprises also the manufacture of the above azo dyes in substance.  This subject matter does not appear in the Specification as accepted.
Patent GB-699298-A (GB)
Title: Improvements in or relating to water heaters, boilers and the like
IPC: F24H1/18
Filed: 1950-08-16
Abstract: 699,298. Hot-water boilers &c. PHILLIPS, A. Sept. 28, 1951 [Aug. 16, 1950], No. 20314/50. Class 64 (i) The bottom 2 of a water or other fluid storage tank 1 or boiler is provided with a pair of tubes 3, 4 closed at the bottom and depending into a space supplied with heat, e.g. from a flame or hot gases. One tube 3 has an upward tubular extension 10 which is bent over to project down inside the second tube 4. The tube 3 also has an open-ended tube 13 projecting inside it and extending through the extension 10 so as to open into the tank or boiler at a position above its bottom 2.