baber/WOPTO huggingface dataset:
Patent GB-138753-A (GB)
Title: Improvements relating to electrically-driven rotary pumps
IPC: F04D13/08
Filed: 1919-03-28
Abstract: 138,753. Drysdale & Co., Drysdale, J. W. W., and Young, J. March 28, 1919. Pumping - machines.-In a submersible electrically-driven pump in which the motor g is mounted on the same shaft as, and above the pump a, the motor g is enclosed in a cylinder or bell e, mounted on a stool d supported by the casing of the pump, which is carried down without openings to a level below the bottom of the motor, where it is open. The bell c is so dimensioned that, with a waterlevel without it above the top of the motor but within a predetermined distance therefrom, the water - level within it is below the motor. The motor g is carried by a cylinder f mounted inside the bell e. Openings r are provided in the framing d, and hand-holes o, covering by water-tight flanges p, in the bell c.
Patent GB-1443392-A (GB)
Title: Ruminant feed additive
Inventor: ABDO KAMAL MOHAMMAD
IPC: A23K1/00
Filed: 1974-02-20
Abstract: 1443392 Cultivating rumen microorganisms W R GRACE & CO 20 Feb 1974 7826/74 Heading C6F [ Also in Division A2] A composition for administration to ruminants is prepared by culturing, under CO 2  at 30-50‹C, microorganisms from the rumen fluid of a ruminant in an aqueous suspension of a starchcontaining concentrate feed ration, sufficiently to ensure complete in vitro adaptation to said feed ration, and collecting the adapted microorganisms to form the composition, adaptation being determined by (A) a 11 culture, on 87% concentrate feed, as defined in the Specification, with artificial saliva mix for 24 hours at 39‹C giving # 0.05 mg/ ml 1-lactic acid or (B) an 111 culture on 87% concentrate feed with artificial saliva mix, for 8 hours, at 39‹C giving # 3.5 mg/ml volatile fatty acids. The feed ration may be alfalfa, corn, milo, cottonseed meal, timothy, linseed meal or wheat, and may include urea, ammonia, ammonium sulphate, biuret, B vitamins, fatty acids of 4-10 carbon atoms, and magnesium and potassium minerals. Artificial saliva mix may be added to the nutrient mixture before culturing, and this may be followed by dilution by a factor of 0À1-25, addition of a cryo-protective agent e.g. glycerol, sucrose, glucose, casein or whey, followed by centrifuging, freezing of the microorganisms which are then thawed and spread over the chosen concentrate feedstuff. The product microorganisms may be mixed with an absorptive inert carrier, e.g. exfoliated vermiculite, in the weight ratio 0.5-5:1 microorganism suspension: inert carrier, and may be administered by bolus gun as a capsule of at least 5mm. cross-section and containing 1-10 wt per cent of this mixture and 90-99% of a carrier. 90-590 mls. of product may be administered as an oral drench. The product may be administered to steers changing feed from roughage to concentrate, to chronic steers, or to steers suffering from 90 day slump.
Patent GB-199443-A (GB)
Title: Saddle suspension device for bicycles, motor-cycles and the like
IPC: B62J1/04
Filed: 1922-03-17
Abstract: 199,443. Kauffmann, P. March 17, 1922. Saddles; spring devices.-In saddle suspensions of the type in which the saddle proper is mounted on the end of a spring - controlled arm pivoted to a fixed arm connected at its other end to the cycle frame, one or both of the arms are formed of a U-shaped strip of sheet metal arranged with the bridge-piece close to the joint between the arms so as to resist bending, and the springs are disposed between the arms. In the form shown in Fig. 1, both arms a, b are made of metal strip bent into U-shape and are pivoted together on a transverse bolt e, their open ends being rigidly secured respectively to a clip h and to the saddle m. The springs j are arranged between the arm a and an extension f of the arm b and are adjustable in number or position by means of a series of apertures or notches g, g<1>, or are replaceable by springs of different strength, according to the weight of the rider. In the form shown in Fig 6, the movable arm b consists of a pivoted tube, and one or more replaceable springs R, with or without guide stems, are inserted between the arms.
Patent GB-558465-A (GB)
Title: Improvements in mosaic targets for cathode-ray tubes particularly for television transmission
IPC: H01J29/43
Filed: 1942-06-10
Abstract: 558,465. Cathode-ray tubes. WESTERN ELECTRIC CO., Inc. June 10, 1942, No. 7932. Convention date, May 1, 1941. [Classes 39 (i) and 40 (iii)] In a mosaic target for a television transmitting tube a conductive plate or mesh 40 carries a layer of photo-emissive material 60 which may be either continuous or discontinuous but remains solidly at the same potential as base 40. A number of particles of insulation 61, or a mesh of insulating material, are superimposed on, or embedded in, or between the particles of, the material 60. In operation, a picture is thrown on the layer 60 and the emitted photoelectrons are collected each by its nearest insulation 61 which is kept, by secondary emission, at a positive datum potential which ensures saturation of the photo-emission. When struck by a scanning beam, each particle of insulation, which has fallen below datum potential by an amount proportional to the picture element intensity, is restored to datum potential. The picture signal is supplied either by the induced pulse in conductor 40, or by the collected secondary current. The insulation 61 may comprise embedded glass beads, or woven glass fabric, or sputtered or sprayed quartz, alumina or magnesia particles. It may be treated with metallic oxide to increase its secondary-emission ratio. The mosaic yields a constant component of current proportional to the momentary total illumination and this information may be transmitted by the circuit of Fig. 5. The picture signals pass through the main amplifying chain 47, 48, 49 while the constant component is isolated and amplified by cathode follower valve 54, and is applied to vary the grid bias of the next valve 50 of the main chain. To this valve is also applied pulses from pulse generator 60. Consequently, during each flyback period a series of pulses is transmitted the amplitude of which is proportional to the total momentary intensity of the picture. Specifications 472,861, 472,862 and 517,756 are referred to.
Patent GB-559302-A (GB)
Title: Improvements in or relating to ª‡-galacturonic acid and ª•-galactonic acid and derivatives thereof
IPC: C07H7/033
Filed: 1942-06-10
Abstract: 559,302. Galacturonates ; galactonic acid. PFIZER & CO., C. June 10, 1942, No. 7943. Convention date, Oct. 31, 1941. [Class 2 (iii)] An alkali metal salt and a calcium salt are added to a hydrolized pectic substance, and the resulting alkali metal-calcium double salt of d-galacturonic acid separated by crystallization. By reduction, a mixture of alkali metal and calcium salts of l-galactonic acid is obtained, which by acidification gives l-galactonic acid. The hydrolysis of the pectic substance, such as beet sugar pulp, apple pomace or citrus albedo may be effected by chemical or biochemical means. In examples, beet pulp is hydrolysed by means of a pectinase prepared by means of Aspergillus oryzae, and the resulting product allowed to stand after adding toluene. The pulp is filtered off and the filtrate concentrated. Magnesium and calcium are removed by adding oxalic acid, and phosphates by means of zirconium sulphate. The double salt of dgalacturonic acid obtained by adding sodium and calcium carbonates is placed in a hydrogenation bomb with Raney nickel catalyst and reduced. The resulting mixture of salts is treated with calcium acetate monohydrate to remove the sodium, and is then treated with oxalic acid to give l-galactonic acid. In other examples, hydrochloric acid is used for the hydrolysis, citrus pectin is used as starting material and the potassium calcium double salt of galacturonic acid is produced by using potassium instead of sodium carbonate.
Patent GB-720838-A (GB)
Title: Esters of ª‡-2,4,5-trichlorophenoxypropionic acid
IPC: C07C69/712
Filed: 1953-03-23
Abstract: The invention comprises esters of a -2,4,5-trichlorophenoxypropionic acid having the formula <FORM:0720838/IV (b)/1> wherein n is 2 or 3, m is 1, 2 or 3 and R represents an alkyl radical containing 1, 2, 3 or 4 carbon-atoms.  The compounds are prepared by reacting one molecular proportion of a -2,4,5-trichlorophenoxypropionic acid with one molecular proportion of a glycol or polyglycol monoether of the formula R-(OCnH2n)m-OH in the presence of an esterification catalyst such as sulphuric acid or an aryl sulphuric acid.  The reaction is preferably carried out at reflux temperature in an inert solvent, which should be substantially immiscible with water and boiling in the range of 80 DEG  to 150 DEG  C. (e.g. benzene, toluene, xylene and ethylene dichloride), when the water of reaction distils out of the reaction zone as it is formed.  The reaction product is washed free from catalyst and excess acid with aqueous sodium carbonate and water, and the solvent and traces of water are then removed by distillation under reduced pressure.  Alternatively, an excess of the ether alcohol reactant may be used as a solvent, the excess ether alcohol together with water of reaction being distilled out of the reaction zone under vacuum during the reaction.  The examples describe the preparation of the 2-(2-butoxy - 1 - methylethoxy) - 1 - methylethanol, 1 - butoxy - 2 - propyl, 2 - ethoxyethyl, 2 -(2 - methoxyethoxy) ethyl and a mixture of the butoxy-propyl, butoxy-propoxy-propyl, and butoxy - propoxy - propoxy - propyl esters of a  - 2,4,5 - trichlorophenoxypropionic acid.  Glycol and polyglycol alkylmonoethers such as 1 - butoxy - 2 - propanol, 2 - (2 - butoxy - 1 - methylethoxy) - 1 - methylethanol, 2 - ethoxy - ethanol, 2 -(2 - methoxyethoxy) - ethanol and butoxy - propoxy - propanol are obtained by the reaction of ethylene oxide and/or propylene oxide with the appropriate molecular proportion of a monohydric aliphatic alcohol in the presence of a catalyst such as sulphuric acid or sodium hydroxide.  The reactants may, for example, be mixed and heated together in the presence of the catalyst for half-an-hour at 170 DEG  C. and under autogenous pressure.
Patent GB-287118-A (GB)
Title: Improvements relating to devices for illuminating transparent, perforated and like signs
IPC: G09F13/14
Filed: 1928-03-15
Abstract: 287,118. Forbath, F., and Konig, J. March 15, 1927, [Convention date]. Signs.-A box-form sign has a front stencil 6, a rearwardly arranged parabolic reflector 2 and lamps mounted in laterally arranged casings 4 at the ends of the main casing 7. Light from the lamps is reflected from the reflector, which may be coated with a coloured enamel, on to the back of the stencil so as to illuminate the symbols formed therein.
Patent GB-1032276-A (GB)
Title: Dehydrogenation of hydrocarbons
Inventor: TIMMS DONALD GEORGE
IPC: B01J27/06
Filed: 1963-02-28
Abstract: Paraffins or olefins are dehydrogenated by reaction with an excess over the stoichiometric amount necessary for formation of diolefin of oxygen and a halogen, particularly chlorine or bromine, or a compound thereof capable of liberating halogen, at below 400 DEG  C. in the presence of a catalyst for the oxidation of hydrogen halide to halogen and water.  The amount of halogen may be 0.05-0.2 gram atom per mol. of hydrocarbon and of oxygen, e.g. as air, about 20% above the stoichiometric amount.  The catalyst may be an oxide of iron, manganese or cobalt or a halide of copper supported on pumice or alumina.  Butane, butenes, isopentane or isopentene may be reacted.
Patent GB-216613-A (GB)
Title: Improvements in endless-track vehicles
IPC: B62D55/04
Filed: 1923-03-21
Abstract: 216,613. Lamb, F. B. March 21, 1923. Endless-track vehicles.-In a wheeled vehicle convertible into a vehicle wholly or partly of the self-laying track type by replacing the wheels on one or more axles by self-contained' endless-track units, the road wheel is replaced by a single or twin wheel, of substantially the same diameter, normally transmitting the weight and drive to the track. A twin-tyred wheel a, b is mounted on a hub which carries one or two beams c, a sprocket wheel h, and a brake drum m. The beams c carry at their outer ends rollers e, the rear roller having a sprocket i coupled by a chain with the wheel h. The front roller is preferably under the action of a spring f. A flange l may be fitted to the wheels and rollers to locate the track, which may have projections engaging a toothed driving rim or flange on the rear roller, while the rim may be slidably mounted on a drum or on studs. The beam c may be a laminated spring, and the brake drum may be attached to the rear roller.
Patent GB-160421-A (GB)
Title: Improvements in copying presses
IPC: B41L7/00
Filed: 1921-03-15
Abstract: 160,421. Campochiaro, D. March 19, 1920, [Convention date]. Copying-presses. - A copying-press of the kind in which the movable member as B is actuated by sliding wedge members inclined in opposite directions and operable simultaneously to move in opposite directions by a screw formed with threads of opposite hand is constructed so that the wedges move from the centre towards the -sides of the press while the pressure is being put on, and ball or roller bearings H<1> are used between the slides and two parallel guides O on the frame of the press, and also if desired between the wedges L and oppositely inclined fixed surfaces M on the movable plate B of the press. The fixed plate G of the press is fixed rigidly to the box A and the uprights N and side guides O, and the wedges L are formed with extensions H in which are mounted the ball or roller bearings H<1>. Two wedges L are attachd to each of two slides D, which are actuated by a screwed spindle F mounted in bearings E, and formed with screws of opposite hand.
Patent GB-579490-A (GB)
Title: Improvements in adjustable louvre shutters and blinds
IPC: F24F13/15
Filed: 1944-05-01
Abstract: 579,490. Louvre shutters. COOPER, C. E. May 1, 1944, No. 8173. [Class 137] An adjustable louvre shutter or blind comprises louvre carrying channelled end members connected to a pair of channelled metal fittings by pivot members having bearing flanges which contact with the said metal fittings and are extended to provide a series of operating arms which are connected to, and are actuated by, a common longitudinally reciprocating member. As shown, the channelled metal fittings 10 are secured to the mullions 11. Pivot members 12 are journalled in the fittings 10, are secured by riveting at 16 to the members 13 and are provided with arms 17 whereby the louvre carriers 13 are actuated. The arms 17 extend from bearing flanges 15 on the members 12, and each arm 17 carries a pivot pin 18 which is free to move along a slot 19 cut in the longitudinal operating member 20, which is actuated by the lever 21. Each member 13 which may be formed from a single sheet, or otherwise, has the webs 24 with cut-out portions 25 providing a weatherproof overlap between the louvres 14. The gap between the members 13 and fittings 10 is closed by a weather strip 26 pivotally secured to the flange 29 formed on the member 13.
Patent GB-251247-A (GB)
Title: Improvements in skiving machines
IPC: C14B1/00
Filed: 1926-03-25
Abstract: 251,247. Maschinenfabrik Moenus Akt.-Ges. April 27, 1925, [Convention date]. Stationary-cutter apparatus.-In a machine for bevelling driving-belts, fed transversely, the bevel and cut at the end of the bevel are cut simultaneously. The belt is fed by a resiliently mounted upper roller and an axial movable lower roll against a knife of adjustable inclination. A lower feed roll 3 is mounted in a bearing 17, adjustable on a surface a on a fixed frame 26 by a screw 28. The upper fluted roll 2 is resiliently pressed by a spring 34 acting, through linkage 40, 42, on the other end bearing 30. The link 40 fulcrums on rollers 54 mounted on a lug 57 of the lower feed-roll bearing so as to increase the pressure on the bearing when the length of bevel is increased. The knife 64 is pivoted at one end to the upper roll bearing 61 and at the other end to the lower roll bearing 60 by means of conical bushes. Axial movement of the bearing 60 is permitted along the knife by a keyway in the knife as the axial position of the lower roller is moved. The bushes have tapered faces for deflecting the waste. To the conical bushes are secured adjustable auxiliary knives for regularizing the edges of the scarf. The belt is moved to the rolls 2, 3 on a carriage 9 guided on fixed rails 4 carrying a hand operated clamp. Milling-cutter type.-A milling-cutter may be substituted for the stationary knife 64.
Patent GB-1066191-A (GB)
Title: Ditch dredger
IPC: E02F5/02
Filed: 1962-03-02
Abstract: 1,066,191. Ditch dredgers. E. T. Y. GRAY, June 4, 1963 [March 2, 1962], No. 8244/62. Heading E1F. A ditch dredger is of such a construction that when mounted on a tractor to extend either forwardly or rearwardly of the tractor it is possible to apply to the scoop of the dredger thrust from the tractor as well as part of the weight of the dredger as the scoop is used to cut down the near side, across the base, and up the far side of the ditch. The scoop is pivoted adjacent the digging edge thereof to a boom that can be swung vertically by a jack acting through a lever system coupled to the boom and by the lift linkage of the tractor.
Patent GB-676148-A (GB)
Title: Improvements in or relating to collapsible carton
Inventor: RAFOTH BENNIE ALBERT HERRMANN
IPC: B65D77/24
Filed: 1950-04-03
Abstract: 676,148. Cartons. MARATHON CORPORATION. April 3, 1950, No. 8267/50. Classes 18 and 66 The lid 13 of a carton formed from a single blank has an extension 9 which is folded to form a pocket for a spoon or the like. The extension 9 comprises four flaps 14-17, the flaps, 14, 17 being adhered together to form the pocket 40. The adhered flaps 14, 17 are secured to the front wall 10 of the carton. The pocket 40 forms a tab for opening the erected and filled carton by pulling the flaps 14, 17 from the wall 10. The hinge crease 20 may be perforated to permit the open lid to be torn off. In an alternative form the pocket may be adhesively secured to the lid. One end of the pocket may be closed. The carton may be treated, coated or laminated with thermoplastic material, facilitating securing the flaps 14, 17 to the wall 10.
Patent GB-1470131-A (GB)
Title: Pipe cleaning apparatus
IPC: B24C3/32
Filed: 1975-02-27
Abstract: 1470131 Blasting BRITISH GAS CORP 26 Feb 1976 [27 Feb 1975] 8291/75 Heading B3D An apparatus for cleaning the surface of a pipe 6 by grit blasting comprises a carriage 1 having a drive mechanism 3 so that the carriage may be moved around the pipe, the carriage having a fixing plate 5 adapted to detachably fix a body 8 provided with a driving means 9 having a piston 10 connected to a grit blasting nozzle 11. The carriage has wheels 2 for engaging the pipe 6, such as a gas main, and the drive mechanism 3 has a final drive 4 engaging a chain 7 wrapped around the pipe and tensioned by a spring-loaded bell-crank lever 13, the mechanism 3 being driven by engagement of a threaded end 16 of the mechanism with a square head 15 of a hand driven flexible drive 12 so that the carriage moves around the pipe. The plate 5 of the carriage has holes 23 for receiving spigots 17 on the body 8 which is detachably secured to the plate by clips 14 engaging U-shaped locating means. The body has guide means 19 which is carried by the rod 10 of an air motor 9 mounted to an air pipe 24. The guide means is also connected to a nozzle 11 joined to a grit supply tube 22. As the carriage is driven around the pipe, the motor 9 reciprocates the nozzle so that the grit cleans the pipe.
Patent GB-364432-A (GB)
Title: Improvements relating to sound insulating layers for ceilings, walls, floors and the like
IPC: E04F15/20
Filed: 1931-03-18
Abstract: 364,432. Walls; floors. DOORENTZ, R., 48A, Kothenerstrasse, Leipsic, Germany. March 18, 1931, No. 8329. [Class 20 (iv).] A sound insulation for ceilings, floors, and walls consists of two or more layers of pasteboard 1, Fig. 2, separated by a network of coarsemeshed fibrous netting 2 which is laid loosely and forms an air gap. The layers 1 may be raw pasteboard, felt pasteboard, or bitumen pasteboard. Fig. 3 shows walls 7 separated by the layers 1, 2, and a floor 4 covered with similar layers 1, 2, and a bitumen pasteboard 6. The floor 3 may be cement or gypsum.
Patent GB-1277811-A (GB)
Title: System for guiding vehicles
Inventor: SEDGFIELD HUGH BROUGHAM
IPC: B62D1/26
Filed: 1969-02-15
Abstract: 1277811 Automatic guidance systems SPERRY RAND Ltd 11 Feb 1970 [15 Feb 1969] 8344/69 Heading B7H In an automatic guidance system for guiding a steerable vehicle along a guide slot in a track, a follower pin 21 which engages the slot ahead of the front wheels 11 of the vehicle is carried by a forwardly-extending arm 22 having mounting means 23 which allow the arm to pivot about a vertical axis, and an auxiliary hydraulic steering ram 30 connected to steering linkage 12, 13 has a control valve 29 which is actuated in response to movement of the arm 22 through a rigid linkage system. The arm 22 is connected through the mounting means 23 to an input lever 25 connected by a pivot pin 27 to an operating lever 28 for the valve 29. The body of the ram 30 is connected to the steering linkage 12, 13 through a link 15, levers 17, 18, and a clutch 17 which is manually operable through a cable 19 to disengage the automatic system when the steering is driver controlled. In order to provide a follow-up action which tends to restore the valve 29 to its neutral position as the wheel turn the lever 28 is pivoted on a collar which is secured between springs 55 on a rod 53 slidably carried by the ram body and connected to a dashpot 54. Direct mechanical steering control by the arm 22 in the event of hydraulic failure is provided for by a lost-motion link 52 connected between the pivot pin 27 and the lever 18. A pair of centring springs 32 for the lever 25 and arm 22 are arranged such that a spring bias can be exerted therethrough by means of a cable 58 to urge the follower pin 21 against either side of the guide slot so that the vehicle follows the selected path at a fork in the track. The arm 22 is connected to the mounting means 23 by horizontal pivot and can be raised into an inoperative position wherein the follower pin 21 is clear of the slot by lifting mechanism 24 actuated through cables 40, 40<SP>1</SP>. The follower pin 21 is mounted on the arm 22 so on to be rotatable about its longitudinal axis and has a wear-resistant ceramic coating. A cable 15 is arranged to rotate the pin 21 about a transverse axis whenever the arm 22 is raised by the lifting mechanism 24 so that the pin is aligned with the arm.
Patent GB-469970-A (GB)
Title: Improvements relating to fan impellers
IPC: F04D29/28
Filed: 1936-03-20
Abstract: 469,970. Casting fan impellers. MATTHEWS & YATES, Ltd., and YATES, W. March 20, 1936, No. 8345. [Class 83 (i)] The vanes a of a fan impeller are arranged in an annulus and are carried centrally between their ends in a wheellike structure b to which they are secured by placing the vanes in a mould and diecasting the part b on to the vanes.
Patent GB-271984-A (GB)
Title: Improvements relating to gas-heated ovens
IPC: F24C15/32
Filed: 1926-03-27
Abstract: 271,984. R. & A. Main, Ltd., and Wortley, G. W. March 27, 1926. Gas cooking-stoves.-In gas ovens of the hind comprising outer and inner casings 10, 13, the latter being closed at the top and open at the bottom, and the exhaust gases passing from the bottom of the inner chamber up one or more of the spaces between the two casings, one or more small " leak " openings 21 are provided at the top of the inner chamber to avoid stagnation of the gases in the upper part of the oven. In the oven shown, the main exhaust occurs through an opening 19 at the bottom of the inner casing, the gases passing between baffles 24 in the space between the two casings to the outlet 17. The " leak " opening 21 is arranged opposite to the outlet 17 and is in the form of an arcuate slot controlled by a rotary damper. Specifications 234,292 and 245,639 are referred to.