baber/WOPTO huggingface dataset:
Patent GB-895688-A (GB)
Title: A method of producing tetracycline
IPC: C12P29/00
Filed: 1959-04-02
Abstract: Tetracycline is produced by cultivating Streptomyces aureofaciens or streptomyces viridifaciens in a nutrient medium containing bromine compounds as antimetabolites of the chloride anions and is characterised in the bromine compounds being organic brominated compounds wherein the bromine is covalent-bound. Typical examples of such compounds are sodium or ammonium bromo methane sulphonates and tetrabromophenolphthalein.  The organic bromine compounds may be added as such or formed in situ by adding elementary bromine to the medium or to its individual components possessing ethylenic unsaturation, preferably prior to sterilisation.  The medium contains up to 0.5% of the brominated compound.  Specifications 747,779, 773,453, 775,113, 781,843 and 782,125 are referred to.
Patent GB-818137-A (GB)
Title: A novel cyclic organo-boron compound and the preparation thereof
Inventor: CLARK SHELDON LEWIS
IPC: C10L1/30
Filed: 1958-04-09
Abstract: 1-n-Butylboracyclohexane of the formula <FORM:0818137/III/1> (see Group IV (b)), is admixed with conventional jet fuels, such as JP-4, in proportions of, for example, 10-20 per cent by volume.ALSO:The invention comprises 1-n-butylboracyclohexane of the formula <FORM:0818137/IV (b)/1> which may be prepared by reacting the di-Grignard compound of 1,5-dibromopentane with di-n-butylchloroborane in ether solution and distilling 1-n-butylboracyclohexane from the reaction mixture. The reaction is preferably carried out at low temperatures of the order of 0 DEG  C. A detailed example is described.  The product is useful as a chemical intermediate, as a welding fuel and as an additive for jet fuels (see Group III).
Patent GB-639404-A (GB)
Title: Improvements in or relating to valve sleeving apparatus for bags
IPC: B31B19/84
Filed: 1947-04-28
Abstract: 639,404. Feeding sheets &c. to machines. ST. REGIS PAPER CO. April 28, 1947. No. 11282. Convention date, May 3, 1946. [Class 100 (i)] [Also in Groups XVII and XXX] A bag-making machine includes mechanism for feeding flat bag tubes singly from a stack 53, Fig. 4, to a position where the tube abuts a stop 176. The feeding mechanism comprises an upper frame slidably supported on rods 47 carried by a lower frame. A plate 54 pivoted to the upper frame supports the stack 53. The stack abuts outer fingers 66, 67 and inner fingers 57, 61 mounted on a structure slidable along rods 65, Fig. 1. The mechanism, which is adapted to remove a bag tube from the bottom of the stack and deliver it to a conveyer, is driven by the motor 225 through gearing including a differential gear 71 driving a splined shaft 75. The outer edge of the stack is supported by hooklike pivoted members 89, Fig. 6, which are spring-biassed away from the stack and are normally held against the latter by cams 87 on a shaft 86. A vacuum cup 94 draws downwardly a corner of the lowermost bag-tube and thereafter the edge of the tube is progressively released by the hook members. When free of the latter the bag-tube is released by the vacuum cup and gripped by fingers 96 pivoted on discs 97 fixed to the shaft 75. The fingers release the bag-tube when it is gripped between the discs 97 and lower, driven discs 99. The vacuum cup is carried by the off-set end of an . oscillatable pipe 34, connected via a filter 138, Fig. 4, to a vacuum pump 140, a valve associated with the pump being adapted to destroy the vacuum at the appropriate time. The bag-tube on leaving the discs is gripped by spring-biassed fingers 165 pivotally carried on sprocket chains 166. The fingers are opened by cam means 185 preparatory to gripping the bag-tube and are again operated to release the tube, simultaneously with its arrival against stops 175, by cam means 176.
Patent GB-388245-A (GB)
Title: Improvements in or relating to transmission mechanism
IPC: F16H57/10
Filed: 1932-04-20
Abstract: 388,245. Variable-speed gearing. SIFTON, C., 1212, Canada Permanent Building, Bay Street, Toronto, and CHESWRIGHT, L. K., 85, Morningside Avenue, Swansea, Ontario, both in Canada. April 20, 1932, No. 11347. [Class 80 (ii).] Variable-speed gearing comprises aligned driving and driven shafts 1, 2 and a loose central epicyclic element 5 subjected to two frictional drags, a clutch drag tending to turn it with the shaft 2 and the resistance of a brake element 21 which is prevented from turning backwards relatively to a fixed casing 20 by a suitable detent, not shown.. These effects are separated, as distinct from the arrangement of Specification 388,244, so that the retarding action of the brake need not be accompanied by driving action at the clutch surfaces. Planet pinions 7 on a frame 6 fast on the shaft 2 mesh with an annulus 4 on a drum 3 fast on the shaft 1 and with the sun gear 5, which thus tends to rotate freely backwards. Splined on a boss 8 of the gear 5 are two friction discs 9, 17, having between them a disc 18 rigid with the brake element 21. To the right of the disc 17 is a brake disc 14 splined at 15 to the brake ring 21. To the right of the disc 14 is a clutch disc 11 splined at 12 to the shaft 2. To the left of the disc 9 is a clutch disc 13 fast with the annulus 4 and shaft 1. Springs 23, 25 normally hold the disc 11 pressed strongly to the left so as to clutch the friction parts together effecting solid driving with the detent overrunning. Control is effected by continuous movement of a shifter 29 against the springs 23, 25. As the axial thrust is released, spring- pressed ball bearings 31 act to push the clutch discs 13, 11 clear and out of engagement so that the braking elements act alone to cause the gear 5 to be nothing but a fulcrum element so that the torque on the driven shaft is increased as the detent is brought into action on reduced speed. The displacement of the movable races 30 of the ball bearings 31 is limited by washers 36, Fig. 3, on projecting stems 35. Further release of the axial thrust causes slip of the brake discs so that the speed of the shaft 2 may be reduced to zero.
Patent GB-113770-A (GB)
IPC: H01T13/46
Abstract: 113,770. Baron, J. J., and Baron, E. A. Nov. 9, 1917. Sparking - plugs. -Sparking points are formed on a ring 8 removably mounted in the plug by spring blades 10 either having lugs 11 which engage apertures 12 or secured to the outside of the plug body and having inturned ends for engaging an annular groove in the ring 8. A milled edge may be formed on the ring 8, and the lugs 11 may be released by an appliance constructed as shown in Fig.6.
Patent GB-400925-A (GB)
Title: Vehicle with non-driven rotatable half-axles
IPC: B60K17/36
Filed: 1932-04-21
Abstract: 400,925. Motor vehicles. TATRAWERKE AUTOMOBIL-UND WAGGONBAU AKT.-GES., Smichov, Prague. April 21, 1932, No. 11483. Convention date, Oct. 26, 1931. [Classes 79 (iii), 79 (iv), and 79 (v).] Vehicles having a central, longitudinal, preferably tubular frame fitted with swinging half axles, are provided with members carrying bearings for the half axles, fixings for the springs and supports for the steering gear and controls, the members being adapted to be secured to and removed from the central frame together with the bearing springs and other associated parts. The half axles d carrying the wheels e are pivoted at c to a member h adapted to be clamped to the central tubular frame a. The centre of the transverse spring g is also secured to the member h. In the construction shown in Fig. 4, the half axles 21 are pivoted and the spring 22 is fixed to a tubular member 23 secured on the frame tube 5. A similar member 231, preferably in one with the member 23, supports the steering handwheel 24, the steering gear 25 and the controls 26. The driver's seat may also be carried in the same way. The Specification as open to inspection under Sect. 91 comprises also a construction in which the members carrying the separate arms of the half axles and the springs are independent ; another construction in which a tubular member to which the various parts are secured is provided with flanges and forms part of a built up central main frame ; and an arrangement in which an overhung engine is secured to the rear end of the central tubular frame of a six wheeled vehicle. This subject-matter does not appear in the Specification as accepted.
Patent GB-1470821-A (GB)
Title: Artillery projectile fin assembly
IPC: F42B10/20
Filed: 1974-03-14
Abstract: 1470821 Folding fins FRANCE ARMED FORCES MINISTER OF 14 March 1974 [14 March 1973] 11536/74 Heading F3A An artillery projectile, optionally self-propelled, comprises: a plurality of folding fins 17; a ring 39 coupled to the fins to ensure that they unfold synchronously; and at least one piston 31 which is arranged to move the ring rearwards to unfold the fins, but which is also arranged to be acted upon by the pressure built up behind the projectile in the launching tube or barrel to thereby maintain the ring in a forward position and the fins in a folded condition during launching of the projectile. The erected fins are maintained between a shoulder 45 of the ring and a buffer ring 49 of soft material. The piston is driven rearwards when the projectile leaves the launching tube or barrel by gases which are fed into a torroidal recess 23 from either a pyrotechnic charge 21 or from the launching tube or barrel through a valve (Fig. 5, not shown) incorporated in the base of the projectile. Alternatively, the pistons move rearwardly owing to inertia (Fig. 4, not shown).
Patent GB-388248-A (GB)
Title: Improvements in or relating to roller friction clutches
IPC: F16D41/07
Filed: 1932-04-22
Abstract: 388,248. Free-wheel clutches. ZAHNRADFABRIK FRIEDRICHSHAFEN AKT.-GES., (formerly ZAHNRADFABRIK AKT.-GES.), Friedrichshafen, Lake Constance, Germany. April 22, 1932, No. 11551. Convention date, July 15, 1931. [Class 80 (ii).] A free-wheel clutch comprises cam clutch elements mounted to rotate about one element of the clutch, and friction rollers adapted to act also as roller bearings when the clutch is running free. As shown, the clutch elements 6 are formed separately, and are mounted in a groove in the inner member 3 of the clutch. In the free-wheeling condition, the rollers 5 engage the projections 6<11> on the elements 6, carrying them freely round in their groove, but relative motion in the other direction is prevented by forming the elements 6 with wedge-shaped surfaces 6<1> against which the rollers become tightly engaged. If desired the members 6 may be mounted in the outer element 4 of the clutch.
Patent GB-115686-A (GB)
IPC: C07K14/475
Abstract: 115,686. Imray, O., (Soc. of Chemical Industry in Basle). May 15, 1917. Metal-albumen compounds are prepared by the action of metals or metal compounds on albumens, obtained from normal animal or human organs or tissues or their juices and freed from water-soluble products giving the ninhydrin reaction. According to examples, lung, brain, liver, and thyroid glands are freed from blood and fat, boiled with water until the water ceases to give the ninhydrin reaction, and then treated with ferric chloride, copper sulphate, silver nitrate, and mercuric chloride, respectively; the products are washed free from excess of metal salt, dried, and powdered. Compounds of cadmium, chromium, gold, zinc, and cobalt are also mentioned. The products are suitable for diagnostic and therapeutic use. Specification 110,936 is referred to.
Patent GB-1300117-A (GB)
Title: Apparatus for joining layers of sheet material
Inventor: HEFFERNAN WILLIAM ROBERT
IPC: B29C65/04
Filed: 1970-03-11
Abstract: 1300117 Seaming non-metallic sheet material BONDIT CORP 11 March 1970 [12 March 1969] 11598/70 Heading B5K Apparatus for joining edge portions of layers of sheet material along a two-dimensional contour by an adhesive disposed therebetween comprises means for moving the layers lengthwise along a first part of the contour, first means for applying a releasable compressive pressure to the layers in the area to be joined, and second means for applying compressive pressure to a single point so that upon the momentary release of the pressure applied by the first means the layers can be pivoted about the point and joined along the next part of the contour. The layers to be joined with the interfed adhesive, e.g. a dry thermoplastic monofilament, are conveyed between electrodes 103, 104 along a platform 100 by conveyer belts 101, 102 coated with polytetrafluoroethylene, driven by rollers 105, 106, 107, 108 and guided by guides 109, 110, 111, 112, 113, 114. The electrode 104 is connected to the high voltage output of a RF generator. The electrode 103 is grounded and is mounted on a lever 115 pivoted at 116. The rollers 105, 106, the guides 109, 110, 111 and the pivot 116 are mounted on a plate 117 mounted on the apparatus frame so that its movement is restricted to vertical motion. Joining is effected with the plate 117 in its lower position and constant pressure is maintained at a single point by a pin 120 urged downwardly by a spring 121. Releasable pressure is applied to the electrode 103 by varying the tension on a spring 122, connected to the lever 115, by a rotating eccentric 123 coupled to the spring 122 by a rod 124. The operator can pivot the layers about the pin 120 when pressure is relieved from the electrode 103.
Patent GB-198872-A (GB)
Title: Improvements in and relating to electric heating units
IPC: H05B3/48
Filed: 1922-04-25
Abstract: 198,872. British Thomson- Houston Co., Ltd., (General Electric Co.). April 25, 1922. Wire resistances, embedded, encased, and threaded.-A heating unit of the kind in which a resistance element is embedded in a compacted mass of insulating material enclosed in a metal sheath, as described in Specification 144,767, is provided with insulators secured at intervals along the length of the resistance element to prevent it from coming into contact with the sheath. The insulators consist of mica &c. washers 14 mounted on metal eyelets 15 which are threaded on the resistance element 11 and compressed to hold them in position. The ends of the resistance element are forced into recesses in terminals 16, 17 which are bent to grip the resistance. The heating unit is assembled by closing the sheath, after the insertion of the resistance element, by washers 19, 21 held in position 'by clips 20, 22, the washer 21 being of star shape to allow the filling material such as magnesium oxide to be introduced into the sheath. After being filled the sheath is closed by a solid washer 24 and the unit passed through a swaging machine to reduce the diameter of the sheath and compress the filling material to a dense mass.
Patent GB-443317-A (GB)
Title: Improvements in couplings for pipes and the like
IPC: F16L17/04
Filed: 1935-04-16
Abstract: 443,317. Pipe joints. NOVATI, M., 1, Via Unione, Milan, Italy. April 16, 1935, No. 11673. Convention date, April 20, 1934. [Class 99 (i)] A pipe joint comprises a ring B within the abutting ends of the pipes supporting a packing - ring C having an external rib extendingbetween the pipe ends, and a two part sleeve D embracing the pipe ends and held thereon by a ring secured to one of the parts by a screw F. A rib on the ring B holds the packing- ring in position.
Patent GB-1109833-A (GB)
Title: Apparatus for degassing liquids
Inventor: FRYER KEVIN CHAMBERLAIN
IPC: B01D19/00
Filed: 1964-03-19
Abstract: 1,109,833. Degassing apparatus. STREAMLINE FILTERS Ltd. 17 June, 1965 [19 March, 1964], No. 11676/64. Heading B1M. An apparatus for degassing liquids e.g. mineral oil, comprises a closed vessel divided into at least two compartments by means of a partition through which passes the inlet or outlet of a paper disc stack type filter located within the vessel, one of the compartments b e i n g connected at an upper level to vacuum-maintaining means and at a lower level to a liquid outlet and the other to a liquid inlet. As shown in Fig. 3, three compartments, D, E and F, are provided, compartments D and F containing filters 10 and 11 and the intermediate compartment E and final compartment F being connected to a vacuum-producing means 12.
Patent GB-1421197-A (GB)
Title: Transmission systems
IPC: H04B3/06
Filed: 1973-03-12
Abstract: 1421197 Amplifiers WESTERN ELECTRIC CO Inc 12 March 1973 [15 March 1972] 11705/73 Heading H3T A transmission system includes an amplifier for compensating, over a band of frequencies from f e  to fh, a loss characteristic of a transmission path which varies as a function of frequency, includes a first amplifying stage 10, Fig. 2, and a second amplifying stage 28 in cascade, the first stage 10 having a gainfrequency characteristic which is different from the loss characteristic below frequency f e  and is defined by means including a plurality of lumped-element quadrature couplers, the overall gain of the amplifier being partitioned between the two stages so as to limit the change in the coefficient of transmission of each of the couplers to less than 30 dB over the band of frequencies. In the embodiment shown the amplifier 28 has a flat gain/frequency characteristic, while the amplifier 10 is of the feed-forward type disclosed in Specification 1,341,717. Each of the coupling networks 20, 25, 27 comprises a number of quadrature couplers 35-1 to 35-N, Fig. 4, in tandem: the Specification describes a particular arrangement in which the couplers comprise transformers (Figs. 10, 11, not shown).
Patent GB-118025-A (GB)
IPC: A61F2/58
Abstract: 118,025. Maubtanc, L. Nov. 9, 1917. Limbs, artificial. - The fingers of a hand are connected to a pivot arranged transversely in the palm or knuckles of the hand, and are opened by an extension of one finger forming a lever which is moved by a counter-lever connected by a cord to suitable operating means. A member 1 holding all the fingers pivot in the width of the hand. The stem 2 of one finger projects down and is engaged by a counterlever 3 pivoted at 4 and having a stem 5 connected to an operating cord 6. A stem 7 secured to the member 1 engages a pin 8 forming part of the thumb which pivots about an axis 9. The parts are returned by a spring coiled on the axis 9. The hand is pivoted at 11 for backward and forward movement, while it rotates bodily about a ring 12.
Patent GB-455141-A (GB)
Title: Speedometer testing apparatus
IPC: G01P21/02
Filed: 1935-04-17
Abstract: 455,141. Testing speedometers. WICKENS, A. W., 30, Candover Close, Harmondsworth, West Drayton, Middlesex. April 17, 1935, No. 11849. [Class 106 (iii)] For testing a road - vehicle speedometer against a standard speedometer, the rear wheels of the vehicle are supported on pairs of drums 7, and the motor of the vehicle rotates the drums and the armature of a dynamo 9 coupled thereto, the dynamo being wired to a standard electric speedometer, the reading of which is then compared with the reading of the vehicle speedometer. Alternatively, if the vehicle is fitted with a speedometer driven from a wheel contacting with the ground, said wheel is placed on the drums of the apparatus and the shaft 5 which is coupled to the dynamo 9 is driven through a coupling 14 by an independent prime mover.
Patent GB-543833-A (GB)
Title: Improvements in and relating to the electrodeposition of nickel
IPC: C25D3/12
Filed: 1941-09-16
Abstract: 543,833. Electro-deposition of nickel. HANSON-VAN WINKLEMUNNING CO. Sept. 16, 1941, No. 11853. Convention date, Oct. 12, 1940. [Class 41 ] Nickel is deposited from an aqueous solution of nickel chloride and acetate with sufficient hydrochloric acid present to give a pH value of from 2.0 to 5.5. The nickel concentration may vary from 4.5 to 17 ounces per gallon of electrolyte, comprising from 4 to 12 ounces from the chloride and 0.5 to 5 from the acetate. Current density may vary from 15 to 400 amperes per square foot of cathode surface, and the preferred temperature range is 130-150  F.
Patent GB-256903-A (GB)
Title: Improvements in and relating to circular calculators
IPC: G06G1/04
Filed: 1926-05-07
Abstract: 256,903. Robinson, F. A., and Lancashire Optical Manufacturing Co., Ltd. May 7, 1926. Logarithmic apparatus.-A circular calculator of the watch type comprises setting members mounted on axes parallel to the axis of the calculating elements these being connected to the members by means of spur gearing. As shown in Figs. 1, 5, 7, and 8, a casing 1 contains a plate 2 carrying brackets 6, 7, and 8 for supporting trains of spur gearing 28, 29, 31 and 12, 14, 18 respectively. The spindles 27 and 13 of the respective trains have squared portions 38 and 37, extending through holes in the rear of the casing for the reception of milled setting members or discs 36 and 35. The wheel 18 is rotatably mounted on a bush 19 and has secured thereto a graduated disc 26 while the pinion 31 is mounted on an arbor 32 journaled in the bush 19 and provided with an indicating pointer 33. The spindles 13 and 27 have enlarged portions 41 and 44 with which engage springs 42 and 43 fo prevent accidental displacement of the parts. Where the apparatus is intended for calculations relating to the textile industry the centre portion of the dial is provided with tables relating to widths of looms, reeds and picks, counts of yarn, &c.
Patent GB-1061440-A (GB)
Title: Compositions for use in x-ray examination of the gall bladder
IPC: A61K31/765
Filed: 1964-03-20
Abstract: Compositions for use in X-ray examination of gall bladders comprise solid concentrates or aqueous solutions or dispersions containing (a) a hexitol, (b) a non-toxic polyethylene glycol ester or ether, and (c) a solid or liquid animal or vegetable edible fat, the proportions by weight of (a), (b), and (c) being:-  For 100 parts of a solid concentrate  (a) 25-70 (b) 25-70 (c) 1-7  For an aqueous solution of dispersion (per 100 parts of water)  (a) 10-70 (b) 2-15 (c) 0.1-1.5 Specified hexitols are sorbitol, mannitol, dulcitol and iditol. Suitable polyethylene glycol ethers and esters are polyethylene glycol sorbitan mono-oleate, -stearate, -palmitate and tri-oleate, polyethylene glycol stearate, polyethylene glycol lauryl ethers, and polyoxyethylene sorbitan esters.  Specified fats are peanut, soyabean, cottonseed, castor, linseed, rape-seed, olive, sesame, coconut, palm, anise, and fish oils, cocoa- and coconut-butter. Conventional stabilising, preserving, and flavouring agents may be added to the compositions.