baber/WOPTO huggingface dataset:
Patent GB-1179060-A (GB)
Title: Penicillanic Acids
IPC: C07D499/00
Filed: 1968-07-10
Abstract: 1,179,060. Penicillins; N-carboxy amino acid anhydrides. AMERICAN HOME PRODUCTS CORP. 10 July, 1968 [28 July, 1967], No. 32834/68. Headings C2A and C2C. The invention relates to penicillins of Formula I or a salt thereof, wherein R<SP>1</SP> and R<SP>2</SP> are the same or different and each is H, C 1 -C 6  alkyl, C 1 -C 6  alkoxy, aryl or aryloxy and n is 1 or 2. Typical salts are the Na, K, hydrochloride, sulphate or fumarate. A typical penicillin is 6-(indan-2- amino-2-carboxamido) penicillanic acid. The penicillins are produced by reacting:-(A) 6- aminopenicillanic acid or a salt thereof with a N-carboxy amino acid anhydride of Formula VI wherein R<SP>1</SP>, R<SP>2</SP> and n have the above values. (B) 6-APA with an acid of Formula V (where R<SP>1</SP>, R<SP>2</SP> and n have the above meaning) in which the amino group is protected, or a salt thereof, and thereafter removing the protecting group under sufficiently mild conditions to avoid destruction of the penicillin nucleus. (C) a silyl drivative of 6-APA of formula (where R<SP>4</SP> is H or and R<SP>5</SP>, K<SP>6</SP> and R<SP>7</SP> are the same or different and each is an alkyl, cycloalkyl, aryl or aralkyl group) or a solution comprising such a silyl derivative, with an acid of Formula V, or a reactive derivative thereof, and wherein the amino group is protected by reacting the acid in the form of its N-carboxy anhydride, and thereafter removing the silyl groups by hydrolysis or alcoholysis. The N-carboxyamino acid anhydrides of Formula VI are prepared by the following reaction scheme :- wherein R<SP>1</SP>, R<SP>2</SP> and n have the above meaning and Z is -CH < or -CH 2 -CH <. Examples are for the preparation of the N-carboxy anhydrides of 2-amino indane-2-carboxylic acid and its 4-phenyl, 3-phenoxy and 4-butyl derivatives; 2-amino-1,2,3,4,-tetrahydro-6-methoxy- 2-naphthoic acid and the corresponding 7- ethoxy and 3,6-dimethyl derivative. A pharmaceutical composition comprises a penicillin of Formula I or a salt thereof and a carrier.
Patent GB-893721-A (GB)
Title: Improvements in or relating to resuscitators
IPC: A61M16/00
Filed: 1960-09-23
Abstract: 893,721. Respiratory appliances. DRAGER, O. H., [trading as DRAGERWERK, H. & B. DRAGER]. Sept. 23, 1960 [Sept. 23, 1959], No. 32852/60. Class 81 (2). A tubular connector to be inserted in the mouth of a person to be resuscitated comprises a tubular duct 1 extending through a plate 3 and intended for insertion into the patient's mouth. Opposite ends of the plate 3 carry projections 5, 5 which enable a user to hold the plate with his thumbs while placing his fingers under the patient's chin. Preferably, the inner faces 6 of the projections are roughened, as by grooves, to provide a grip and the lower face of the plate 3 is covered with foam rubber 4. The rear of the device carries a tubular extension 2 for use in mouth-to-mouth resuscitation or for connection to a respiratory appliance. Provision is made for keeping a releasable nose clip 9 attached to the device until required for use.
Patent GB-1278000-A (GB)
Title: Apparatus for the study of the statistical distribution of measurements
Inventor: GOUPIL JEAN
IPC: G06F17/18
Filed: 1970-07-07
Abstract: 1278000 Electric digital measurement SOC D'ELECTRONIQUE INDUSTRIELLE ET NUCLEAIRE 7 July 1970 [7 July 1969] 32865/70 Heading G4H An apparatus for studying the statistical distribution of consecutive measurements given in digital form, each measurement is placed in one of a hundred possible categories and this number used to address one storage position of a 100-position store 15, the value in which is then increased by one, the final stored values being converted to analogue form for displaying a histogram 18. The measurement appears in digital form in register 1 and is gated by a control signal A into a register 5. Signal A also gates a fixed minimum value set up on switches 9 into a counter 7. Immediately after signal A, a second signal B causes oscillator 10 to start, the pulses stepping counter 7. The outputs of counter 7 and register 5 are compared at 13. If the value in register 5 is less than that preset in counter 7 it is too low to be taken into account and the comparator is arranged to enter a 0 into counter 11. If the measurement value is higher than the value in counter 7 it is converted into one of a hundred values by the comparator 13, divider 12 and counter 11. Counter 7 is incremented at the frequency of oscillator 10. At the same time counter 11 is incremented through divider 12, the division factor being such that a count of 100 in counter 11 embraces the whole of the measurement range which is being studied. When the counter 7 output equals the output of register 5 the comparator stops the oscillator 10, the count in counter 11 then being the number which identifies the category in which the measurement falls. If the counter 11 reaches a count of 99 without comparator 13 giving an output, an output v stops the oscillator so that count 99 represents any value above the fixed range, as 0 means any value below it. The value in counter 11 is used to add one to the corresponding storage position in ring store 15 by acting through gating circuit 14 as an addressing signal, the store 15 being cycled under the control of a 100- step counter 20 until the addressed position is found. The stored value is read out to register 16, incremented by one and returned to store 15. A counter 17 is preset to the number of measurements to be made. When this number is reached store 15 is disabled, the stored values are then read out via a digital to analogue converter 23 to provide video signals for a histogram display on a CRT 18.
Patent GB-1396425-A (GB)
Title: Protection of electrical contacts in a housing for electrical  circuitry and apparatus
IPC: H02G3/08
Filed: 1972-07-13
Abstract: 1396425 Two-part couplings HOLOPHANE SOC ANON DITE 13 July 1972 [15 July 1971] 32921/72 Heading H2E [Also in Division F4] A waterproof enclosure, formed by a housing 2 and a plate 3, contains a lamp, a reflector and prisms or lenses. The enclosure 2, 3 fits into a base 1 set into the ground on an aircraft runway, power being supplied through abutment contacts 6a, 7a. The space between the plate 3 and the base 1 is not watertight, but even if the base 1 is underwater when the enclosure 2, 3 is fitted the contacts 6a, 7a are surrounded by air trapped in bells 7. The bells 7 are elastic and have skirts 7b glued in holes 8 in the plate 3. When the enclosure 2, 3 is fitted the bells 7 and skirts 7b are deformed resiliently, as shown at the left of the figure, to provide contact pressure. The air pockets in the bells 7 and in a dished portion 11 of the plate 3 allow for expansion on freezing of the water. The contacts 7a are connected to the lamp by flexible strips 9. The supply conductors 4 are connected to terminals 5 buried in resin blocks 10.
Patent GB-172508-A (GB)
Title: Improvements in methods of making welded bends
IPC: B21C37/28
Filed: 1920-11-22
Abstract: 172,508. Kennedy, W. Nov. 22, 1920. Bends.-Figs 2 - - 6 show a bend connecting a pair of parallel tubes. The tubes separated by a plate 1 are placed in a semicircular cap 3 having a shoulder 4 on which the tubes and plate rest. The whole is then welded together. If it is desired to have the passage in the bend of circular section, a piece 5, having feather edges 9 is substituted for the plate 1, as shown in Figs. 7 and 9; or in a modification the piece 5 may have thick edges resting on shoulders 10 in the cap as shown in Fig. 11. By modifying the form of the cap and separating-piece, three or more tubes may be connected up. Reference has been directed by the Comptroller to Specification 173,900.
Patent GB-421499-A (GB)
Title: Improvements in and relating to coating surfaces
IPC: D21H19/58
Filed: 1933-11-24
Abstract: Paper, board or cardboard is moisture-proofed by coating first with a solution containing unvulcanized rubber and a plasticizer such as liquid paraffin, partially drying and then applying a cellulose ester or either and a plasticizer such as methyl phthalate in a solvent mixture containing a component which is a solvent for unvulcanized rubber.  The cellulose derivative may be cellulose acetate, nitrocellulose or benzyl cellulose dissolved in a mixture of acetone and methylene chloride.  Colouring matter and pigments, for example powdered aluminium or bronze may be added to the rubber solution and the cellulose derivative solution.
Patent GB-344407-A (GB)
Title: Improvements in silencers for gaseous currents
IPC: F01N1/08
Filed: 1929-10-30
Abstract: 344,407. Silencing gaseous currents. HEATHER, F., 38, Greenford Road, Sudbury Hill, Harrow, Middlesex. Oct. 30, 1929, No. 33007. [Class 7 (ii).] A number of pairs of elements such as c, d, Figs. 2 and 3, are arranged in series to form with one another and with a surrounding wall, such as a casing f, Fig. 1, a number of expansion chambers a, b. Each element c has a projecting portion i which enters a tubular part h supported by arms g on each part d, and is provided at its periphery with projections e which serve to centre the elements in the casing so as to leave an annular space l, and also as abutments for the parts d. The gases entering at j pass through the annular passage at the small end of element d into a chamber a, whence they enter peripherally through spaces l into chamber b between a pair of elements, and so on to the outlet k. In their passage, the gases are whirled by striking surfaces concave to their path. In a modification, the casing f is formed by cylindrical portions on each element d, the portions touching one another and being soldered, welded, &c. at their abutting edges. In a further modification, the parts i of the elements c are not closed, but are threaded over an axial bolt which serves to hold the elements together, and an intermediate larger expansion chamber is formed by inserting a tubular part between two elements c, d. A number of such silencers may be arranged in parallel, and the gases may escape therefrom in successive blasts produced by varying the number of elements, or the capacities of the expansion chambers.
Patent GB-1100577-A (GB)
Title: Improvements in methods for refining pig iron
IPC: C21C5/32
Filed: 1966-07-22
Abstract: In a two-stage top-blowing process for the production of low-phosphorus steel in a rotary converter the first stage of blowing is commenced with the converter stationary in a vertical position, rotation being commenced part way through that stage. The bath is then deslagged, this operation being carried out in the case of the production of high carbon steel when the carbon content of the bath is 0.2%-0.7% above that finally required, after which the converter is rotated throughout the second stage of blowing.  To maintain the desired final carbon content the slag is then stiffened by a relatively slight movement of the vessel e.g. rotation at not more than 10 r.p.m. with the axis inclined to the vertical, without injection of oxygen, to bring about a slight reaction of the carbon of the bath with the slag oxides.
Patent GB-1037446-A (GB)
Title: Ingot moulds, head boxes and the like
Inventor: DUNBURY FREDERICK MOLESWORTH
IPC: B22D7/10
Filed: 1964-08-14
Abstract: 1,037,446. Mould and core materials. FOSECO INTERNATIONAL Ltd. June 30, 1965, No. 33238/64. Addition to 921,332. Heading B3F. An ingot mould as described in the parent Specification, but wherein the mould head lining comprises a composition of dry commuted or powdered newsprint and at least 2% by weight of a refractory filler, said filler consisting at least in part of a fibrous refractory filler.
Patent GB-930102-A (GB)
Title: Improvements in windscreen wipers
Inventor: BODDY JOHN
IPC: B60S1/38
Filed: 1958-10-17
Abstract: 930,102. Windscreen wipers. TRICOFOLBERTH Ltd. Oct. 16, 1959 [Oct. 17, 1958], No. 33247/58. Class 138 (1). Each pivotal connection between a yoke 2 of a windscreen wiper harness and yokes 4, 6, and between yokes 4, 6 and the backing strip 18 of a squeegee 20, is made by a plastic fastener 8, 10, 22, 24, 26, or 28 which prevents contact between the members which it is connecting. The fasteners 8, 10 each has claws 30, 32 which engage in notches in the yoke 4, which may be of enamelled mild steel, and a V-sectioned slot 34 having a central reinforcing web 36 around which the slotted end of the yoke 2 is engaged. The sides of the yoke end are provided with notches which receive projections in the fastener. Each of the fasteners 22, 24, 26 and 28 has a notched transverse flange 44 adapted to be engaged in a T-shaped slot 50 in the backing strip 18.
Patent GB-328287-A (GB)
Title: Improvements in aircraft
IPC: B64C25/00
Filed: 1928-11-14
Abstract: 328,287. Burnelli, V. J., and Wilford, E. B. Nov. 14, 1928. Springs, arrangement of; guiding vertical play. -In an aeroplane undercarriage a resiliently mounted wheel 37 is housed in a rigid vertical yoke 40, Fig. 3, connected to the fuselage as at 41 and formed at its lower ends by a transverse tie 42, Fig. 4, which is connected at each side to the respective fuselage or wing bracing member, 43 or 44. The wheel 37 comprises an outer rotatable member 47 mounted on bearings disposed in the periphery of a drum 45 having a vertical slot 46 to enable it to move vertically with respect to the tie 42. Lugs 48 provided on the drum 45 are linked to yokes 50 which are resiliently connected by tension springs 52 to the frame 53 of the undercarriage truck, Fig. 1. Peripheral guides 54, which may be rollers, engage with hardened guides 55 mounted upon the inside of yoke 40, if undue axial movement occurs.
Patent GB-790522-A (GB)
Title: Improvements in liquid metering mechanism
IPC: G01F3/18
Filed: 1955-11-22
Abstract: 790,522. Liquid meters. ARNAU, A. Nov. 22, 1955 [Nov. 22, 1954], No. 33440/55. Class 69(2). A liquid meter comprises pistons 1, 2 and related metering chambers 3, 4 offset by 120 degrees and mounted on a crank case forming a metering chamber 5 common to both pistons. The pistons co-operate with a common crank pin 35 to drive a crankshaft 13 connected to a register; being driven inwardly by liquid admitted to the chambers 3, 4 and outwardly by liquid admitted to the chamber 5. A distributing valve 22 is rotated by the crankshaft and controls admission of liquid from an inlet 33 to the chambers 3, 4, 5 and exhaust therefrom to an outlet 27. Each piston rod is guided in a bushing 21 and has a slotted member 11 engaging, with some play, a crank roller 12. The top dead centre positions of the pistons are limited by a fixed stop 17 which engages the slotted members 11, and the bottom dead centre positions are defined by stops 9 which engage the pistons. Stops 9 are mounted on a disc 8 which can be rotated to provide some adjustment of the piston strokes for correcting the quantity of liquid delivered by the meter.
Patent GB-426927-A (GB)
Title: Hanging festoon or loop drier for fabrics and the like
IPC: F26B13/04
Filed: 1934-11-21
Abstract: 426,927. Drying fabrics &c. HAAS, H., 4, Hackenberger Strasse, Lennep, Rhineland, Germany. Nov. 21, 1934, No. 33444. Convention date, Feb. 26. [Class 34 (i)] In apparatus for drying fabrics orlike materials wherein travelling bars on endless chains support festoons of fabric, &c. narrow slots exist between the bars which permit drying air to descend into the festoons and the width of the spaces between the slots is several times larger than the width of the slots so that the festoons can be distended into bulbous form without making contact with adjacent festoons. As shown in the Figure, fabric is supported by pairs of rollers a, a<1> spaced so that the loops can distend as shown, when air is blown downwardly through openings in a covering e. In a modification, each pair of rollers is replaced by a single relatively large roller.
Patent GB-1165809-A (GB)
Title: A method for producing Nicotinamide Adenine Dinucleotide
IPC: C12P19/36
Filed: 1967-07-20
Abstract: 1,165,809. Nicotinamide adenine dinucleostide. KYOWA HAKKO KOGYO CO. Ltd. 20 July, 1967 [29 July, 1966], No. 33483/67. Heading C2C.  Nicotinamide adenine dinucleostide (NAD) is obtained by culturing a microorganism capable of producing NAD in an aqueous nutrient medium under aerobic conditions in the presence of at least one material selected from pantothenic acid, #-alanine and coenzyme A or their functional derivatives, or mixtures thereof. Suitable microorganisms are yeasts, bacteria, ray fungi and moulds and especially bacteria belonging to the genera Brevibacterium, Corynebacterium and Arthrobacter. The fermentation medium may comprise a synthetic culture medium or a natural nutrient medium and generally contains a carbon source, e.g. a carbohydrate glycerol, mannitol, sorbitol, organic acid or hydrocarbon, a nitrogen source and inorganic compounds and the presence of essential nutrients such as amino acids and/or vitamins may also be necessary. The pantothenic acid, #alanine or coenzyme A may be added as such or in the form of their salts or in the form of natural substances containing them. Suitable incubation temperatures are from 20‹ to 40‹ C. and a pH of about 5 to 9 is preferred. The NAD may be separated from the culture liquor by e.g. ion exchange resin treatment, precipitation with metallic salts, extraction or adsorption methods, or chromatography. In examples the species of micro-organisms used are Brevibacterium ammoniagenes, Corynebacterium sp. and Arthrobacter sp.
Patent GB-921764-A (GB)
Title: Improvements in over-edger type sewing machines
Inventor: HEDEGAARD ARNE MARIUS
IPC: D05B65/00
Filed: 1958-10-21
Abstract: 921,764. Sewing-machines. ROTHENBORG SPECIALMASKINER FOR SY-INDUSTRIEN A.S. Oct. 14, 1959 [Oct. 21, 1958], No. 33500/58. Class 112. The chain of stitches between articles W, sewn on an overedge machine, is severed between a cutting edge 62 provided on a feed dog 40 and a flat undersurface 67 provided on a bracket 64 secured to the presser bar 66. When the presser foot 68 moves off an article W, surface 67 drops to a position in which it can be engaged by the edge 62 on the next feeding stroke of the dog 40. It is stated that bracket 64 can be adjustably mounted on the presser bar.
Patent GB-307854-A (GB)
Title: Improvements in or relating to the pasteurization or sterilization of milk or other liquids
IPC: A23L3/22
Filed: 1927-12-12
Abstract: 307,854. Nielsen, N. J. Dec. 12, 1927. Straight tubes between headers or connecting boxes.-In a tubular heating system for use in sterilizing milk &c. units 9, 11, 16, 17 are each formed of paxallel tubes in sets of three, the front ends of which are fixed in the common front wall 40 of the drums 10, 12 and communicate with recesses 48 therein. The two upper recesses 48 communicate through flanged pipes 44 with the inlet and outlet respectively of a heating system and the two lower recesses 48 through flanged pipes 45 with a pump and a cooling system respectively. The recesses 48 are closed by lids 54, and passages 46 connect the upper and lower recesses on the preheating and pre-coaling sides respectively. The rear ends of the tube systems communicate through recesses 41, in plates 47, closed by plates 49. Tubes 50 are disposed within the drums 10, 12 so as to provide an annular space through which the water circulates transversely of the tube systems, the upper annular space being connected through an opening 53 with the lower. Separate rear end plates 49 are provided for each of the pre-heating and the pre-cooling systems 9, 11, 16, 17 and sealing members 52, 51 are employed for these systems and for the tubes 50 so that relative axial expansion and contraction due to temperature differences is provided for. A further pair of drums each having a pre-heating and a pre-cooling tube system may be inserted between drums 10, 12. A rise or fall of temperature 15-35‹ C. may be obtained in each of the pre-heating and pre-cooling systems. Jackets and tubes of any polygonal cross-section may also be employed. Specification 185,231 is referred to.
Patent GB-907223-A (GB)
Title: Improvements in and relating to pressure indicating devices
Inventor: POWELL VERNON
IPC: G01L7/18
Filed: 1958-10-21
Abstract: 907,223. Pressure gauges; dynamometers. BRADBURY & SONS Ltd., JOSEPH. Oct. 13, 1959 [Oct. 21, 1958], No. 33596/58. Class 106 (2). An hydraulic pressure indicator comprises a vertical tube 12, a compressible container 31, Fig. 3, for hydraulic fluid connected to the bottom of the tube, the tube containing air above the level of the hydraulic fluid, a valve 29 at the upper part of the tube to enable the pressure of the air to be brought to atmospheric, and means 21 for initially adjusting the level of the fluid at the bottom of the tube. The tube 12 is tapered so that its lower portion is wider than its upper and the spacing of the calibration marks is more uniform. It is connected through an opening 28 to a pipe 22 leading from an hydraulic load cell, Fig. 3. A valve 24 having internal bores 25 is adapted to close the opening 28 when a sleeve 21 is screwed into the body of the indicator. This seals the pipe 22 from the tube 12 e.g. when the device is being transported. In use, with no pressure on the load cell, and a bleed screw 29 opened, the sleeve 21 is adjusted to bring the level of fluid in the tube to a zero mark 16a. The screw 29 is then closed, thus trapping air in the top of the tube 12 and the device is ready for use. The load cell consists of a metal bellows 31 to which the pressure is applied, having clamps 45 to hold it to the brake pedal 47 of a car. Thus, when testing the brakes of the car, any pressure applied is shown on the indicator tube 12 which may be placed in any suitable position.
Patent GB-622949-A (GB)
Title: Improvements in or relating to resin-modified styrene copolymers
IPC: B23D77/04
Filed: 1946-11-12
Abstract: 2 (v) Modified drying or semi-drying oil-styrene copolymers, suitable for use in the manufacture of paints and varnishes and in the production of films, are obtained by first reacting an oilsoluble alkyl or aryl substituted phenol formaldehyde condensation product with a drying or semi-drying oil and then heating the product with styrene and/or a nuclear alkyl substituted styrene in the presence of a monocyclic a -terpene.  If desired, part only of the styrene, substituted styrene and/or monocyclic a -terpene may be present at the beginning of the interpolymerization, the remainders being added during the reaction.  An additional solvent may be present.  An excess of styrene which is removed at the conclusion of the re action may be employed as the solvent.  The interpolymerization may be carried out under superatmospheric pressure at temperatures up to 250 DEG  C.  In the examples, conjugated linseed and isomerized oiticica oils are used to modify condensation products of p-tert.-butyl phenol and formaldehyde and the products dissolved in white spirit and dipentene are heated with styrene.  A paint was produced from the copolymer varnish by admixture with titanium oxide, antimony oxide and cobalt naphthenate.  Specifications 545,324, 549,303, 573,809, 573,835, 609,750 and 622,948 are referred to.