baber/WOPTO huggingface dataset:
Patent GB-341962-A (GB)
Title: Improvements in and relating to starting switches for electric motors
IPC: H02P1/32
Filed: 1929-10-25
Abstract: 341,962. Master control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and BOURNE, S. N., Birdingbury, Rugby. Oct. 25, 1929, No. 32448. [Class 38 (iii).] Star-delta starters ; push-button control.-Star and delta contactors A, B are controlled by two pushbuttons, depressing button T energizes the coil a of contactor A and release thereof energizes the coil b of contactor B. The stop button P when depressed breaks the circuit of coils a, b, and completes the circuit of no-volt relay v, which maintains itself over contacts V. This button is latched in the depressed position until the other button is again depressed.
Patent GB-1192533-A (GB)
Title: Improvements in or relating to a Sealing Strip Assembly for a Door and other Closing Elements
IPC: B60J10/86
Filed: 1968-07-08
Abstract: 1,192,533. Door seals. AUTOMOBILES PEUGBOT and REGIE NATIONALE DES USINES RENAULT. 8 July, 1968 [21 Sept., 1967], No. 32454/68. Heading E1J . A sealing strip assembly, particularly for car doors &c. comprises a strip support element 1 having along the length thereof a recess 4 with a transversely constricted entrance 5 formed as by flanges 6, 7 and a sealing strip element 2 having along the length thereof a heel portion 8 engaged in the recess behind one constricting wail 6 and a lip portion 14 outside the recess and a removable looking strip 3 e.g. of metal or hard plastics Which engages along one longitudinal edge 15 in a groove 13 in the sealing strip 2 and along the other longitudinal edge 16 behind the other constricting wall 7 or flange to lock the sealing strip in the recess. The strip 1 takes the shape of the door &c. and the key strip correspondingly follows the same shape.
Patent GB-161239-A (GB)
Title: Means of heating the inside of motor cars
IPC: B60H1/18
Filed: 1919-12-29
Abstract: 161,239. Muirhead, J. A. Dec. 29, 1919. Ventilating vehicles; air, heating.-Relates to means for heating and ventilating a motor-car body by utilizing the waste heat in the engine exhaust pipe and consists in surrounding the exhaust pipe A with a pipe B open at the front C and closed at the rear D with a branch pipe E leading to a perforated box H. When the heat is not required, a valve L is opened. To conserve the heat in the body an apron F is provided. Reference has been directed by the Comptroller to Specifications 7797/12, 580/13, 111,003, and 129,888, [all in Class 79 (iii), Motor vehicles, Arrangement &c. of parts of].
Patent GB-506349-A (GB)
Title: Manufacture of oxazine dyestuffs
IPC: C09B19/00
Filed: 1937-11-25
Abstract: 506,349. Oxazine dyestuffs. GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges.) Nov. 25, 1937, No. 32516. [Classes 2 (iii) and 15 (ii)] Dinitro-oxazine dyestuffs are prepared by condensing in the presence of an acid-binding agent a 2 : 4 : 6-trinitro-benzene containing a substituent halogen atom or alkoxy group, with an o-aminophenol containing one or more sulphonic or carboxylic acid groups. As 2 : 4 : 6 - trinitrobenzene compounds picryl chloride, picryl bromide and trinitroanisole are specified. In examples : (1) the hydrochloride of 3-amino-2-hydroxybenzoic acid is heated with picryl chloride in aqueous solution containing sodium carbonate and sodium acetate; the primary condensation product which first precipitates formed by exchange of the chlorine atom for the amino-radical, redissolves with evolution of nitrous acid to form the oxazine ; (2) 3-amino-2-hydroxy-5-sulphobenzoic acid is condensed with picryl chloride or 2:4:6- trinitroanisole; and (3) 3-amino-4-hydroxy-1- methylbenzene - 5 - sulphonic acid, 1 - amino - 2- hydroxybenzene-5-sulphonic acid, and the disodium salt of 2 - amino - 1 - phenol-4 : 6 - disulphonic acid are condensed with picryl chloride. The brown, water-soluble products are fast to light and may be used for dyeing wool and leather; they have a, high penetration in dyeing leather. In further examples, deacidified chrome-tanned goatskin is dyed, formic acid may be added later to the bath and the skin is then liquored with a usual fat emulsion in a fresh bath, and deacidified chrome-tanned calf leather is dyed with the dyestuff, first alone, then with fat emulsion and then with addition of formic acid.
Patent GB-1236700-A (GB)
Title: Rotary plate extruders
Inventor: NEUVILLE BERNARD
IPC: B29C48/47
Filed: 1969-06-27
Abstract: 1,236,700. Centripetal extruders. PRODUITS CHIMIQUES PECHINEY-SAINT-GOBAIN. 27 June, 1969 [28 June, 1968; 29 May, 1969], No. 32624/69. Heading B5A. A centripetal extruder comprises an annular cavity 10, Fig. 1, which is a radial extension of shear gap 6 formed between rotor 1 and stator 3 into which one or more deflector blades 12 attached to the rotor extend. In the embodiment shown, the extrusion axis is vertical and material is fed to cavity 10 from hopper 9 via a rectangular outlet 11 in the side of the hopper, the arrangement being such that material enters the cavity in the same sense as movement of the rotor. There may be provided a single cylindrical deflector blade (12<SP>1</SP>), Fig. 4 (not reproduced), or preferably a plurality of curved blades (12a-12c), Fig. 3 (not reproduced). In either case the blades assist material movement from cavity 10 towards extrusion orifice 5. More than one hopper 9 may be provided or a circular hopper having a number of outlets. The radial width of the annular cavity 10 is preferably between 2 and 5 times shear gap 6 and the height between 1 and 3 times this gap; preferably the height decreases to that of the shear gap from one side of the hopper to the other in the direction of rotation of the rotor. If the height is substantially constant the cavity may be recessed to promote flow of material from the hopper. In a second embodiment, Fig. 5, rotor 1 is provided with deflecting means 13 having prongs 14 which straddle stationary deflecting means 17, the radial distance of the innermost face of deflecting means 17 being a maximum at the feeding hopper outlet (not shown) and a minimum in the region diametrically opposite the hopper. In both embodiments additional deflecting means or grooves may be provided on the opposing faces of the stator and rotor and flow passages 2, 4 for heating are provided in these components. Comparative examples are given in which the extrusion material is P.V.C.
Patent GB-861776-A (GB)
Title: Improvements in and relating to printing apparatus
IPC: B41J9/32
Filed: 1958-12-22
Abstract: 861,776. Typewriters &c. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 22, 1958 [Dec. 24, 1957], No. 32664/60. Divided out of 858,410. Class 100(4) [Also in Group XXXV] A printing apparatus has a plurality of type faces on a flexible endless band 10 continuously moving past a plurality of print hammers 34<SP>1</SP>- 34<SP>n</SP> which are individually actuated when the type required at that point on a record sheet 23 is opposite the particular hammer positioned at the same point the actuation being controlled by an electronic system deriving signals from pickup devices 16-18. Hammer impression is effected by an electrostatic clutch 41. The hammers 34<SP>1</SP>-34<SP>n</SP> are connected by levers 441- 44n to metal bands 45<SP>1</SP>-45<SP>n</SP> and urged by springs 46<SP>1</SP>-46<SP>n</SP> towards a high resistance drum 42 but held spaced therefrom by spacers 47-49 pivotally mounted on a shaft 50 of a motor 43 driving the drum 42. Signals from the control system cause a potential difference between appropriate bands 45 and the drum 42 but the hammers do not operate until a solenoid 57 rotates the spacers 47-49 anticlockwise out of their effective positions to allow the operated bands to contact the drum 42. Before the end of the cycle deenergising the solenoid 57 allows a spring 59 to restore the spacer members 47-49 to disconnect the hammer drive.
Patent GB-338331-A (GB)
Title: Improved construction of sliding clasp fastener
IPC: A44B19/40
Filed: 1929-10-28
Abstract: 338,331. Bellow, E. A. Oct. 28, 1929. Sliding clasp fastenings made from lengths of helically wound wire, have balls, kinks or thickened edges on the element to produce a positive interlocking. Fig. 7 shows the balls P, Fig. 10, the kinks R, Q, and Fig. 11, the thickened edges S, T. Cords C, D may be passed down the coils, to secure them to the fabric, Fig. 8. The fabric may be slotted as at V, Fig. 17, to permit the protrusion of the elements.
Patent GB-1434101-A (GB)
Title: Valves for fluids
IPC: F15B13/02
Filed: 1973-07-10
Abstract: 1434101 Valves SPERRY RAND CORP 10 July 1973 [16 Oct 1972] 32766/73 Heading F2V [Also in Division G3] A spool valve, for use in a servomotor system (see Division G3), comprises a sleeve 56 retained in a body of the spool valve and including an inlet port 62 and slots 64 leading to an outlet port, a spool 68 having pairs of different sized grooves 70, 72 which may be selected so that one pair co-operates with the slots 64 to regulate fluid flow therethrough, and keying means 74, 76 of which a key ring 78 is rotatable and fixable with respect to the valve body so as to select and make operative a particular pair of grooves and the position of those grooves in relation to the slots 64. This enables the maximum flow rate through the valve to be adjustable by selection and positioning of the particular pair of grooves 70, 72 that are to co-operate with the outlet. The spool is moved by fluid pressure acting on a piston end 66 opposed by an adjustable spring at the opposite end.
Patent GB-1508814-A (GB)
Title: Antibiotic derivatives of xk-62-2 and method of production thereof
IPC: A61P31/04
Filed: 1975-08-05
Abstract: 1508814 1 - N - Acylated antibiotic XK- 62-2 derivatives ABBOTT LABORATORIES 5 Aug 1975 [5 Aug 1974] 32766/75 Heading C2C Novel 1 - N - (α - hydroxy - 8 - aminovaleryl)- and 1 - N - (α - hydroxy - # - aminocaproyl)- antibiotic XK - 62 - 2 and pharmaceutically acceptable, non-toxic, acid addition salts thereof are prepared by reacting an optionally protected antibiotic XK-62-2 of the general formula wherein each of Y 1 , Y 2  and Y 3  is H or an aminoprotecting group, with wherein one of Y 4  and Y 5  is H and the other is an amino-protecting group or NY 4 Y 5  is a heterocyclic ring and n is 3 or 4, or a reactive derivative thereof and removing the protecting groups from resulting protected acylated antibiotic XK,62-2 of the general formula followed optionally by salification of the product. 2<SP>1</SP> - N - Carbobensoxy-, 6<SP>1</SP> - N - carbobenzoxy- and 2<SP>1</SP> - N,6<SP>1</SP> - N - dicarbobenzoxy - antibiotic XK - 62 - 2 are prepared by reacting antibiotic XK-62-2 with N-benzoxycarbonyloxysuccinimide. The N - hydroxysuccinimide ester of L- (-) - α - hydroxy - # - carbobenzoxyaminovaleric acid is prepared by reacting L-(-)-α-hydroxy-#- aminovaleric acid with carbobenzoxy chloride and reacting the resulting L-(-)-α-hydroxy-#- carbobenzoxy - aminovaleric acid with N-hydroxysuccinimide in the presence of dicyclohexyl-carbodiimide. The N-hydroxysuccinimide ester of L-(-)-α-hydroxy-#-carbobenzoxyaminocaproic acid is prepared analogously.
Patent GB-421223-A (GB)
Title: Improvements relating to tail wheels for aircraft
IPC: B64C25/50
Filed: 1933-06-20
Abstract: 421,223. Aircraft tail supports; shockabsorbers. DOWTY, G. H., 17, Lansdown Crescent, Cheltenham, Gloucestershire. June 20, 1933, Nos. 32788/33 (divided out of 416,857), and 3274/34. [Class 108 (iii)] [See also Group XXXIII] A tail-wheel, tail-skid, or like mounting for aircraft comprises spring-separated, telescopic elements 6, 7, the relative axial and rotational movements of which are damped by a friction brake controlled by the spring means. As shown in Fig. 2, the wheel &c. is secured to a tube 5 fixed to the tube 6 which is slidable and rotatable in the fixed tube 7. The friction brake comprises split co-operating conical members 15, 16 and when compressed by springs 14, 17 the member 15 expands against the tube 6 and the member 16 contracts on a stem 9 secured to the tube 7. In order to return the parts to their normal positions after relative rotation, a collar 13 fixed to the tube 6 has cam-surfaces 18 engaged by the projecting ends of a pin 23 carried by a spring-pressed bolt 20 slidable in a bush 19 in the stem 9. The spring 24 acts also as a recoil spring to prevent excessive extension of the unit. In the modification shown in Fig. 3, a sleeve 20B secured to the tube 6 and slidably and rotatably mounted on the stem 9 has an inclined edge 32 co-operating with a similar edge on a sleeve 33 slidably but non-rotatably mounted on the stem 9 and pressed by a spring 35 against the sleeve 20B, the spring 35 functioning similarly to the spring 24, Fig. 2. The aircraft may, when on the ground, be steered by the tail-wheel by connecting suitable mechanism to the lower part of the unit.
Patent GB-492571-A (GB)
Title: Improvements in cellulosic tissue products
IPC: E04C2/16
Filed: 1937-11-30
Abstract: 492,571. CrÛpe paper ; baling-presses; packages. PAPER PATENTS CO. Nov. 30, 1937, No. 33046. Convention date, Dec. 7, 1936. [Class 96] [Also in Group XVII] Multiple-ply crÛped cellulose tissue sheets 7 having the crÛpeings parallel are compressed in the planes of the sheets and perpendicular to the crÛpeing of lines, to facilitate baling. Individual pads are separated by sheets 20, e.g. of waxed paper &c. Compression may be effected by a hydraulic or screw press with a plunger 19 recessed at 21 to receive straps or ties for the bale ; the length of the sheets may be reduced to ¢-<1>/20 of the uncompressed length. For use, the pads may be pulled out, e.g. to their initial crÛped length, to facilitate which, wooden ends 23 may be adhered to the edges of the pads. The pads may be used for liquid-absorption, filtering packing, or heat and sound insulating, and may contain asphalt &c.
Patent GB-1333153-A (GB)
Title: Torque limiting device
IPC: B29D29/10
Filed: 1971-07-14
Abstract: 1333153 Brakes automatically engaged by torque or load; fixed-drum brakes M P A BOUHOT 14 July 1971 [15 July 1970] 33063/71 Addition to 1208958 Heading F2E An operating or input shaft 101 mounted in bearings 102, 103, Fig. 1, in a casing 104, 105, 106, has keyed to it at 123 a three-sided cam 122, Figs. 2 and 3, and, axially spaced from the cam, a "driver" 108 which though keyed at 107 is axially slidable on the shaft. Rotatable on shaft 101 is a tubular element 111 which at the bottom has symmetrical sloping surfaces 110 normally engaging with corresponding surfaces 109 on the driver, higher up has a bevel pinion 112, and at the top has an annular extension 115. Element 111 is axially located by the sloping surfaces 109 and, at the top, by a stop 118 fixed to shaft 101. Bevel pinion 112 meshes with pinion 113 fixed to an output shaft 114. In slots 116 in the annular extension 115 are mounted rollers 117 which are normally held just clear of the inside of a surrounding fixed bowl or drum 127 by leaf-springs 125 secured to annular extension 115.  In normal operation of the device, that is when shaft 101 is rotating and the torque imposed on the output shaft 114 by an actuated member connected to it is not excessive, the surfaces 109 and 110 are in engagement as shown in Fig. 1 and cam 122 is symmetrically disposed relative to the rollers 117 as shown in Fig. 2. Upon excessive torque being imposed on the output shaft by the actuated member (the minimum value of this torque being determined by the slope of surfaces 109, 110 and the calibration of spring 119), the sloping surfaces 109, 110 disengage as shaft 101 slightly overruns tubular element 111, and cam 122 is forced into an asymmetrical disposition relative to rollers 117 as shown in Fig. 3. In consequence, rollers 117 are forced into contact with the fixed drum 127, so that rotation of shaft 101 and, with it, shaft 114, is stopped.
Patent GB-1158239-A (GB)
Title: Improvements in and relating to Ion Sources.
Inventor: MOREAU JACK
IPC: H01J27/20
Filed: 1968-07-11
Abstract: 1,158,239. Ion sources. SOC. GENERALE DE CONSTRUCTIONS ELECTRIQUE ET MECANIQUES (ALSTHOM). 11 July, 1968, No. 33153/68. Heading HID. In an electron beam bombardment ion source comprising cathode 13, reflector electrode 14, ionization chamber 11, ion extractor electrode 17 and permanent magnet or electromagnet 12 for creating a magnetic field H within the ionization chamber, the electron beam is injected into the ionization chamber at an angle α to the magnetic field so as to follow a helical path and thereby increase the probability of ionization. In another embodiment the ionization chamber is circular, the magnet cylindrical and the ions are removed in a direction parallel to the axis of the helical electron beam.
Patent GB-1216383-A (GB)
Title: A refractometer using the critical angle method
IPC: G01N21/43
Filed: 1968-07-11
Abstract: 1,216,383. Refractometers. SOC. D'OPTIQUE, PRECISION, ELECTRONIQUE ET MECANIQUE. July 11, 1968 [July 27, 1967], No.33204/68. Heading G2J.  A critical angle refractometer comprises a light source 1, an orientable aiming telescope 2 movable along a graduated dial 3 and an optical element 4 in which a light beam from the source is reflected, having at least one transparent contact surface with the medium 6 whose refractive index is to be measured, and at least two plane reflecting surfaces 9, 10 which cause the beam to be reflected, at least twice, at the same angle of incidence on the contact surface. Fig.1 shows a light beam from lamp 1 entering the prismatic element 4 through surface 11 and being reflected by contact surface 7 at point d 1 , by plane reflecting surfaces 9, 10 and by contact surface 8 at point d 2  into the telescope 2 via exit surface 12. In modifications, element 4 can have a single exit and entry surface and two contact surfaces, a single exit and entry surface and a single contact surface, an exit and an entry surface and single contact surface, an exit and an entry surface and three reflection points on a single contact surface, achieved by suitably positioning tri-rectangular tetrahedrons engaged by their bases to the element.
Patent GB-641572-A (GB)
Title: Improvements in or relating to telegraph transmitters
Inventor: DUNN ROLAND HARRIS
IPC: H04L25/40
Filed: 1947-12-17
Abstract: 641,572. Type-printing telegraphy. STANDARD TELEPHONES & CABLES, Ltd. Dec. 17, 1947, No. 33288. [Class 40 (iii)] In a five-unit telegraph or like code transmitter each code combination is represented by a chain of electronic discharge devices which are fired sequentially, those representing marks and those representing spaces operating transmitting means to transmit a marking or spacing condition respectively, and the number of such devices for the first element of said code combinations is equal to the number of such combinations but for at least some of the succeeding elements the number of devices is progressively halved. In Fig. 1 each black circle represents a cold-cathode tube with three electrodes, the anodes of which are each connected to battery through a common mark winding of a telegraph transmitting relay. Each white circle similarly represents a tube connected to the space winding of the relay. The tubes are connected in thirty-two chains as shown, each combination representing a different character and each associated with an individual contact 1. When any particular contact, say 8, is closed as by a key of a keyboard a common start contact 11 is also closed and a normally conducting stop tube 9 sends a priming pulse to the cathode of a start tube 10 which conducts when it receives the next pulse from a square-pulse generator connected in parallel to all control electrodes. The five tubes of the particular code chain to which the start tube is now connected then conduct in turn as described in Specification 613,137 under control of the timing pulses from the common generator, and as each tube conducts the corresponding telegraph relay winding is energized to transmit to line the required combination of marks and spaces. Finally the common stop tube 9 conducts. If the contacts 11 and 8 remain closed because the character key is still depressed the character will be retransmitted. In Fig. 4 (not shown) this difficulty is avoided by arranging for the depression of a key to energize a relay whose start contacts connect the start tube in circuit over further relay contacts which are opened when the start tube has fired. The common start tube may be replaced by an individual start tube in each character chain (Fig. 3, not shown) and the final code tubes of Fig. 1 may be duplicated so that each serves only eight character combinations.
Patent GB-285351-A (GB)
Title: Improvements in or relating to friction driving belts
IPC: F16G5/18
Filed: 1927-12-09
Abstract: 285,351. Whittle, O. L. Dec. 9, 1927. Belts.-In linked belts of the kind in which pairs of blocks 6 of leather or the like forming the frictional elements engaging the V-grooves in the pulleys are connected by screws 12, the elements being pivotally connected by metal links 10, the pivot pins 11 on the links 10 register with the lower edges of such links so that the lower edges of the blocks 6 may be pressed together in the pulleys without binding on the metal links or pulling apart at the tops. The links 10 are preferably formed from T-bar, the head of the T being cut away to form the pivots 11.
Patent GB-978793-A (GB)
Title: Improvements in and relating to printed circuits
IPC: H05K3/06
Filed: 1962-08-30
Abstract: 978,793. Printed circuits. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. Aug. 30, 1962 [Sept. 4, 1961], No. 33308/62. Heading H1R. In a method of making a printed circuit by etching away unwanted areas of a metal surface, all those areas of the metal surface which are to remain after etching are plated with a tin-nickel alloy coating which serves as a resist to the etchant. Preferably the alloy coating is electrolytically plated on a copper sheet bearing a negative photographically formed plating resist.
Patent GB-393312-A (GB)
Title: Improvements in or relating to pneumatic tyre-casings
IPC: B60C15/06
Filed: 1931-12-02
Abstract: 393,312. Wheel tyres. INDIARUBBER, GUTTA PERCHA, & TELEGRAPH WORKS CO., Ltd., Aldwych House, Ald-wych, London, and TARRIS, F. J., c/o India Rubber, Gutta Percha, & Telegraph Works Co., Silvertown, London. Dec. 2, 1931, No. 33395. [Class 144 (ii).] In a tyre casing comprising layers 10, each formed by winding one or more cords from edge to edge of the casing, the looped portions of the layers enclosing each bead core 11 are connected by a continuous lacing 12. Specification 320,535, [Class 144 (ii), Wheel tyres, Pneumatic &c.], is referred to.
Patent GB-1442561-A (GB)
Title: Digital display electronic timepieces
IPC: G04G9/00
Filed: 1974-07-29
Abstract: 1442561 Electronic timepieces SUWA SEIKOSHA KK 29 July 1974 [31 July 1973] 33405/74 Heading G3T  In an electronic timepiece with digital display (secs, mins, hours, date) and corresponding counters having different codes (<SP>1</SP>/ 6  <SP>1</SP>/ 10  <SP>1</SP>/ 12  <SP>1</SP>/ 31 ) and which are strobed or swept to provide data signals, there is provided a single decoder arranged to provide display operating signals from counter signals after they have been transformed into common coded signals by an intermediate circuit. In the embodiment Fig. 2 outputs from the date and hours counters C 1 , C 2  are transformed by respective intermediate circuits M 1 , M 2  into the code used for mins and secs. The mins and secs counters outputs and the intermediate circuits outputs are swept by strobes Si, S 2  and applied to the decoder D which operates the display DS.