baber/WOPTO huggingface dataset:
Patent GB-581234-A (GB)
Title: A process for the manufacture of stable surgical dressings containing penicillin
IPC: A61L15/46
Filed: 1944-09-14
Abstract: For impregnating dressings consisting of absorbent fibrous material there is employed a sterile solution of a salt of penicillin adjusted to a pH value of 5.5-7.5 and preferably 5.5-6.5, which may be prepared from filtered crude penicillin-containing metabolic solutions, or from purified penicillin solutions, or from pure penicillin salts.  The penicillin content is recoverable from the impregnated dressings by soaking them in water.  Several examples are given, relating to the use of calcium, ammonium, magnesium and a mixture of sodium and potassium salts of penicillin having a bacteriostatic activity ranging between 11 and 900 Oxford units per c.c.ALSO:A dressing consisting of absorbent fibrous material, e.g., cotton gauze, cotton wool, fabrics of glass fibres, nylon, cellulose acetate, spun viscose &c. is impregnated with a sterile solution of a salt of penicillin adjusted to a pH value of 5.5-7.5 and preferably 5.5-6.5, dried to a constant weight and placed in a moisture-proof container.  Drying may be effected in a current of air or inert gas such as nitrogen at a temperature not exceeding 120 DEG C., e.g., at 60-85 DEG C. for 5-10 minutes, or by infra-red radiation in a current of air or inert gas, or in vacuo at low temperatures suitably in the presence of a drying agent such as caustic potash or phosphorous pentoxide.  The solution employed may be prepared from filtered crude penicillin-containing metabolic solutions, or from purified penicillin solutions, or from pure penicillin salts.  The dressings so produced are stable and the penicillin content is recoverable by soaking them in water.  Several examples are given, relating to the use of calcium, ammonium, magnesium, and a mixture of sodium and potassium salts of penicillin having a bacteriostatic activity ranging between 11 and 900 Oxford units per c.c.
Patent GB-697057-A (GB)
Title: Improvements in or relating to heat-hardenable siloxane compositions
IPC: C08K9/06
Filed: 1951-07-25
Abstract: A heat-hardenable composition comprises a polysiloxane having a viscosity of at least 10,000 cs. at 25 DEG  C. and containing 1.99-2.0 organic radicals per silicon atom, the radicals being methyl, ethyl, siliconeopentyl or phenyl radicals or any combination thereof provided that at least 50 per cent of the radicals are alkyl radicals, and a silica filler having a pore volume of 3 to 10 c.c. per gram, in an amount of 5 to 150 parts per 100 parts by weight of the siloxane, the silica being combined with from 0.008 to less than 0.08 mols. per mol. of SiO2 of organosilyl radicals of the general formula R2R1Si- or RR1Si=, where R is an alkyl radical containing less than 5 carbon atoms and R1 is an alkyl radical containing less than 5 carbon atoms or a phenyl radical. The treated silicas may be made according to Specification 682,574, and may be used alone or together with, for example, 0.5 to 50 parts by weight per 100 parts of siloxane of untreated silicas having pour volumes of at least 3 c.c. per gram.  The compositions may be formed into elastomers by heating to 250 DEG  C., or to at least 110 DEG  C. by using one or more organic peroxide catalysts selected from benzoyl peroxide, t.-butyl perbenzoate and t.-butyl per acetate.  Examples are given. Specifications 671,140, 673,149 and 682,540 also are referred to.
Patent GB-1219178-A (GB)
Title: A piston for a rotary-piston machine
IPC: F01C19/10
Filed: 1968-04-11
Abstract: 1,219,178. Rotary-piston internal combustion engines. TOYO KOGYO K.K. April 11, 1968 [April 17, 1967], No. 17671/68. Heading F1F. To remove without damage the oil seal rings from their circular grooves in the end faces of the piston of a rotary-piston machine, e.g., an internal combustion engine, of the kind comprising a three or more - sided piston mounted on the eccentric of a shaft for planetary rotation within a housing having an internal periphery with one less lobe than the piston has sides, at least one slot 10, Fig. 3, is formed in the piston end face adjacent to one or both sides of the circular 7b in which the oil seal ring 8b is mounted and urged outwardly by a spring 9b. On removal of the piston 1 from its housing the spring 9b urges the seal ring 8b outwardly of its groove 7b to permit the insertion of a tool 14 through the slot 10 and the levering of the seal ring out of its groove. The piston end face may have a plurality of concentrically arranged oil seal rings and in this case a slot 10 or slots 10 are arranged between adjacent grooves.
Patent GB-142708-A (GB)
Title: Fountain pen safety pinclip
IPC: B43K25/02
Filed: 1919-07-16
Abstract: 142,708. Nichol, T. N. July 16, 1919. Pockets, retaining fountain pens in.-A clip for holding a fountain pen in the pocket comprises a metal band A, Fig. 1, gripping the pen and provided with a downwardly extending arm and lugs in which is pivoted at C a second clipping arm B held, by a spring D around its pivot, against the first arm. The end of the clip B which grips the material of the pocket is provided with a pin, Fig. 4, to pierce the cloth and enter a hole on the end of the fixed jaw, this end being dished so that the pin point is kept clear of the body of the pen.
Patent GB-493038-A (GB)
Title: Adjustable drawing dies
IPC: B21C3/06
Filed: 1938-06-15
Abstract: 493,038. Drawing-dies. HERBERT, Ltd., A., and WATSON, T. June 15, 1938, No. 17762. [Class 83 (iv)] An adjustable die for drawing to a section of the shape of a polygon of more than four sides, comprises a body with relatively inclined internal surfaces 17 corresponding in number to the sides of the polygon and wedges 18 coacting with the surfaces and with the die sections 24 which are essentially of triangular form, the arrangement being such that movement of the wedges in one direction or the other varies the size of the die opening. The body comprises a lid, a ring 13 and a bottom member all bolted together. The ring 13 has six internal surfaces 17 (in the case of hexagonal die, as shown) along which the wedges 18 are adjustable by screws 19. Each die section 24 has a concavely-curved face 25 which slidably engages a convexly-curved face 26 of a neighbouring section. The angle between the faces 25 and 26 of each section is 60‹ and that between the face 25 and the face 27 engaging the wedge is about 82‹. The die sections may have tungsten-carbide or other hard alloy tips 28.
Patent GB-595976-A (GB)
Title: Pocket electric torch
IPC: F21L4/00
Filed: 1945-07-12
Abstract: 595,976. Electric battery lamps. GREBEL, M. July 12, 1945, No. 17796. Convention date, March 14, 1941. [Class 39 (ii)] A pocket lamp consists of an insulating casing E, Fig. 1 (not shown), containing two cells H, I each associated with a pair of resilient contacts F which co-operate with a central rotary switching member A comprising an insulating disc which carries the bulb holder and reflector and is provided with arcuate contact strips G, g to engage the ends of the contacts F in such manner that rotation of the member A in one direction from the " off " position connects the two cells in parallel, and a further partial turn through one-eighth of a revolution connects them in series, thereby providing alternatively a dim light or one of greater intensity. The rotary switching member A is shaped or dished to receive a concave reflector which may rotate with it, and the bulb may be mounted axially or transversely therein so that light is directed through a front lens and also through a coloured glass at the rear. The casing is shaped to provide access to a recess in the rear of the switching member so that the latter can be rotated by inserting a finger therein.
Patent GB-497846-A (GB)
Title: Improvements in or relating to the manufacture of threads, ribbons, sheets and the like from cellulose derivatives
IPC: D01F2/28
Filed: 1937-06-25
Abstract: Delustred threads, ribbons, sheets, and the like are prepared by embodying in a solution of a cellulose derivative a saponifiable organic compound comprising a fully esterified ester derived from a mono- or di-hydric alcohol or phenol and a carboxylic acid containing less than ten carbon atoms in the molecule, said ester being one that is compatible with the cellulose derivative and has plasticizing properties in relation thereto, thereafter forming the desired product from the solution and delustring the product by means of aqueous media without changing the cellulose derivative.  Esters specified are cyclohexanol crotonate, glycol di-crotonate, lauryl crotonate, n-hexyl crotonate, n-butyl furoate, di-isoamyl succinate, triamyl citrate, cyclohexanol lactate, tributyl citrate and resorcinol di-acetate.  In examples: (1) triamyl citrate is incorporated in a cellulose triacetate spinning solution and the threads obtained therefrom are delustred by means of hot water; (2) a cellulose triacetate spinning solution containing tributyl citrate is spun into a column into which steam is blown; (3) threads obtained from a spinning solution containing cellulose triacetate and glycol dicrotonate are delustred by boiling in water; and (4) n-butyl furoate is added to a cellulose acetate crotonate spinning solution and the threads obtained therefrom passed through water at 100 DEG C.  According to the Provisional Specification, the following esters may be used for incorporation in the solution of the cellulose derivative, the esters of ethyl, butyl, amyl or benzyl alcohol or glycerol with oxalic, furoic, crotonic, citric, lactic or tartaric acid.
Patent GB-644635-A (GB)
Title: Improvements in or relating to electron discharge devices
Inventor: FOULKES CHRISTOPHER HENRY
IPC: H01J19/42
Filed: 1947-07-07
Abstract: 644,635. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. July 7, 1947, No. 17856. [Class 39 (i)] A thermionic valve, particularly a miniature diode for high-frequency use, comprises an anode 1 forming a metallic tubular envelope for the valve and an indirectly heated cathode comprising a cathode sleeve 7 surrounding a heater 15 and a getter 14, the envelope being sealed at one end by a glass bead 3 through which pass leads to the cathode and heater and at the other end by constriction of a metal exhaust tube 5 integral with the anode. Insulators 8, 9 are provided within the envelope to locate the cathode and are shaped either to receive the cathode, Fig. 3 (not shown), or to project into the cathode; they are provided with notches 10 through which the electrode leads extend and through which gases may pass. The getter may be of zirconium, tantalum or the like, and may be coated on the inner wall of the cathode sleeve or may be in the form of a wire 14 which may be used as the cathode leadin. The heater wire 15 and getter 14 may be cemented inside the cathode sleeve with an insulating cement such as alumina. The anode tube may be flared out at one end 2 to receive the glass bead 3 and may be glazed internally before sealing. The anode tube may be finally coated with plastic or other insulating means. Specification 549,832 is referred to.
Patent GB-1465646-A (GB)
IPC: A01F15/07
Filed: 1974-04-24
Abstract: 1465646 Harvesting SPERRY RAND CORP 24 April 1974 [24 April 1973 (6)] 17894/74 Heading A1F The description is substantially identical to that of Specification 1465641. The claims relate particularly to the spring loaded tail plates which deflect the incoming hay swath upwards for initial roll forming and fold against the spring bias under the weight of the hay roll when the latter is ejected.
Patent GB-1381437-A (GB)
Title: Process for preparing vitamin
IPC: C07C/
Filed: 1973-04-13
Abstract: 1381437 Vitamin A compounds SCM CORP 13 April 1973 [24 April 1972] 17922/73 Heading C2V  The invention comprises ethynyl substituted beta-ionol derivatives of formula where R is alkyl, alkenyl, phenyl or aralkyl, which are obtained by ethynylating beta-ionone and then etherifying the hydroxyl group at the tertiary carbon atom. The compounds of Formula I may be first converted to their cuprous acetylenyl derivatives and then reacted with compounds of formula where R<SP>1</SP> is hydrogen or -CO.R<SP>2</SP>, where R<SP>2</SP> is alkyl, phenyl or aralkyl, and R<SP>3</SP> is halogen, to obtain novel compounds of formula The compounds of Formula III may be subjected to semi-hydrogenation to convert the acetylenic bond to an ethylenic bond and obtain a compound of formula which may be hydrolysed to compounds in which R<SP>1</SP> is hydrogen if it is not so already, and then reacted with strong bases to remove the OR group and a hydrogen atom and so form an additional double bond resulting in vitamin A. Examples are given.
Patent GB-1300086-A (GB)
Title: Pump manifolds
Inventor: HALLMARK HAROLD
IPC: F04B53/10
Filed: 1969-04-08
Abstract: 1300086 Valves HOLDEN & BROOKE Ltd 11 March 1970 [8 April 1969] 17952/69 Heading F2V [Also in Division F1] A manually operated valve controlling the admission of fluid to one of a pair of pumps from a common manifold in a pumping installation (see Division F1) comprises a rubber disc 49, backed by a plate 45 and secured to a rivet 46, engageable with a seat 58, the rivet 46 being positioned by a screwthreaded rod 50. The rivet 46 has pressure-equalizing passages 51, 52 which are opened on initial movement of the rod 50 due to the lost play between the rod 50 and rivet 46 provided by a reduced diameter portion 56 of the rod and a pair of pins 47. Each pump discharges into an outlet manifold via a hinged check valve, Fig. 3, comprising a rubber disc 32, backing plate 31 and hinge 35. A screw threaded rod 50 may hold the valve in its closed position. Each rod 50 has a cap 61, and covers 59 facilitate valve removal.
Patent GB-638520-A (GB)
Title: Method of preparing oxazolone derivatives and substituted acrylic acids
IPC: C07D263/42
Filed: 1947-07-08
Abstract: 2 - Benzyl - 4 - alkoxymethylene - 5 - oxazolone hydrohalides are prepared by reacting an organic solvent solution of a b  : b -dialkoxy-a -phenylacetamidopropionic acid with a phosphorus halide such as the tribromide or trichloride.  The resulting hydrohalide may be hydrolysed to give a b -alkoxy-a -phenylacetamido acrylic acid. In an example (1) b  : b -diethoxy-a -phenylacetamidopropionic acid is reacted with phosphorus tribromide in dioxane to give 2 - benzyl - 4 - ethoxymethylene - 5-(4)-oxazolone hydrobromide, on treating this with water b -ethoxy-a -phenylacetamidoacrylic acid is obtained. Substances having penicillin activity are prepared by reacting 2-benzyl-4-alkoxymethylene-5-oxazolone with d-penicillamine in the presence of a nitrogenous liquid condensing agent.  The starting materials for the present invention are prepared as described in Specification 631,191.
Patent GB-108995-A (GB)
Title: Improvements in or relating to Tubular Boilers.
IPC: F22B9/12
Filed: 1916-12-15
Abstract: 108,995. Deighton's Patent Flue & Tube Co., and Lewin, W. J. Dec. 15, 1916. Coiled-tube s u perheaters.-A superheating pipe coil 2 is fitted in the uptake of a boiler of the kind described in Specifications 21608/00 and 8144/09, [Class 123 (ii), Steam-generators]. The coil is suspended by a branch-piece 3 having a perforated nozzle 6 projecting into the steam dome.
Patent GB-908485-A (GB)
Title: Three element triple coincidence compton spectrometer
IPC: G01V5/10
Filed: 1959-05-27
Abstract: 908,485. Radiation detectors. SOCONY MOBIL OIL CO. Inc. May 27, 1959 [June 2, 1958], No. 18120/59. Class 40 (3). A gamma ray detector comprises three scintillation crystals 24, 25, 26 (Figs. 1, 2 and 3), housed in a thin casing 50 (e.g. of aluminium) and optically screened from each other by means of thin aluminium baffles 51, 52, the arrangement being such that scintillations produced in all three crystals by a Compton recoil electron (produced by an incident gamma ray 21 and travelling along path 45) fall on a photo-multiplier 30 whilst the scintillations produced in crystals 24 and 26 fall on respective photomultipliers 40, 42. By giving the crystals suitable (thickness) dimensions such that only Compton recoil electrons have sufficient energy to traverse all three crystals and by utilizing, as a control effect, the coincidence of output signals from all three photo-multipliers. Compton recoil electrons (which are distinctive of the energy of the original gamma rays) may be identified separately from gamma ray conversions produced by other than the Compton effect since the range of such other conversion products will be insufficient to produce triple coincidence. Thus, as shown in Fig. 1, the output signals from each photo-multiplier are supplied, after amplification, to a triple coincidence circuit 32 the output signal from which opens a gate circuit 34 and allows the output from photomultiplier 30 (which is indicative of the total energy of the recoil electron) to pass to a recorder 16. The energy of the incident gamma ray may then be computed. The invention may be employed in a well logging system in which an exploring unit 10 (Fig. 1) lowered into the borehole carries the detector and a suitable radiation source 20 which may be of the neutron type. In a modification of the detector unit the three crystals have different widths each being associated with a respective photomultiplier in addition to the photo-multiplier which is common to all crystals (Fig. 9, not shown).
Patent GB-706932-A (GB)
Title: Improvements in or relating to windows for vehicles
Inventor: HAIGH DONALD
IPC: E05F11/42
Filed: 1951-07-31
Abstract: 706,932. Vehicle windows. BRITISH TRANSPORT COMMISSION. Aug. 27, 1952 [July 31, 1951], No. 18143/51. Class 20 (3) In a vehicle window having a stationary portion and a vertically sliding portion, wherein the sliding portion 38 is controlled by a shaft 47 and handle located outside and independent of the window frame, the sliding portion is detachably connected to vertically movable racks 53 engaged by pinions on the shaft. The connection comprises a length 44 of relatively stiff flexible cable secured between lugs 40 and nipples 45, the latter having ears 46 pinned between forks 54 at the bottom of the racks.
Patent GB-992752-A (GB)
Title: Improvements in and relating to microscope binocular heads
Inventor: SIBERT ALAN CHARLES
IPC: G02B21/20
Filed: 1962-05-11
Abstract: 992,752. Binocular microscopes. GILLETT & SIBERT (OPTICS) Ltd. Feb. 11, 1963 [May 11, 1962], No. 18167/62. Heading G2J. To facilitate adjustment of the interocular distance in a binocular microscope the eyepieces are mounted on slides a, b, which have grooves c, e, d,f along their top and bottom edges and which are disposed between a fixed grooved surface i and grooved surfaces g, h on the bars j,k. Rods p, q or othermembers are interposed between adjacent grooves and a spring r presses the bars j,k against the rods. In a modification the bars j,k are independently spring urged and in a further form these bars are replaced by a single spring urged grooved surface.
Patent GB-1433801-A (GB)
Title: Pyrido-3,2-g- quinoline derivatives
IPC: C07D471/04
Filed: 1973-04-16
Abstract: 1433801 Pyrido[3,2-g]quinolines IMPERIAL CHEMICAL INDUSTRIES Ltd 11 Feb 1974 [16 April 1973] 18188/73 Addition to 1308787 Heading C2C The invention comprises compounds of formula and their non-toxic pharmaceutically acceptable salts, wherein R<SP>2</SP> is H and (a) X=H, R<SP>1</SP>=Z= Me, or (b) X=R<SP>1</SP>=H, Z=Ph, EtO, PrO, PhO, NEt 2 , morpholino or hexamethyleneimino, or (c) X=R<SP>1</SP>=H, Z=NMePh (and its diethyl ester) or (d) X=Me, R<SP>1</SP>=H, Z=EtO (and its dimethyl ester). Also described are diethyl or dimethyl esters of the above acids. The acids are prepared by hydrolysing the esters, which are made in turn by cyclization of the bis-anils where R is Me or Et. Starting materials otherwise prepared have the formulae where Y is NEt 2 , NMePh, morpholino or hexamethyleneimino, and Q is Y, EtO, PrO or PhO.
Patent GB-153060-A (GB)
Title: Improvements in and relating to motor road vehicles
IPC: B60R25/00
Filed: 1919-07-22
Abstract: 153,060. Lewis, T. B., and Parry, R. E. July, 22, 1919. Guarding against unauthorized use.-A device for preventing unauthorized use comprises a lock 4 attached to the footboard or other part of the vehicle, the bolt 3 of the lock being adapted when shot to engage the clutch pedal 1 or other operating-lever. The bolt 3 projects to either side to enable the lock to be fixed on either side of the operating-lever.
Patent GB-343476-A (GB)
Title: Improvements in and relating to calculating machines
IPC: G06C7/06
Filed: 1929-08-14
Abstract: 343,476. Adding and subtracting machines. BALL, W., Park House, Stanley Park Road, Wallington, Surrey, POWER, R. F., 18, Chesterford Gardens, Hampstead, and SIMSON, D. P., Empire House, King Street, both in London. Aug. 14, 1929, No. 18395. Drawings to Specification. [Class 106 (i).] The description is identical with a part of that contained in Specification 343,448, but the claims are directed to the unitary mounting of the keyboard and differential actuating-mechanisms, and the immediate co-operating elements. Specifications 263,505 and 288,672, [Class 106 (i), Calculating &c.], 343,473, 343,474, and 343,475, also are referred to.
Patent GB-1022626-A (GB)
Title: A pick-up loader for agricultural materials
IPC: A01D90/02
Filed: 1963-05-09
Abstract: 1,022,626. Endless conveyers. G. WIEDENMANN. May 9, 1963 [May 9, 1962; June 29, 1962], No. 18427/63. Heading B8A. An agricultural loader with a pick-up drum is characterized by a pair of endless chains 1 carrying spindles mounted in bearings 4 to which pickers 2 are attached. The pickers 2 are collapsed in the downward run of the chains and extended at right angles to the chains 1 by rollers 12, Figs. 2, 3 (not shown), on arms 5 engaging a guide rail 6. A guide board 3 keeps the material in the correct path and a striker plate 7 prevents the material being carried downwards, so that the material is thrown on to the floor of the loader where an endless belt 13 carries it to the rear.
Patent GB-169041-A (GB)
Title: Improvements in the valve mechanism of internal combustion engines
IPC: F01L1/30
Filed: 1920-07-03
Abstract: 169,041. Norton, J. L., and Norton Motors, Ltd. July 3, 1920. Valves; valve-gear.-The springs p, q acting on the overhead valves of a motor-cycle or like vehicle engine are connected together by a balance-lever r so that the compression of the spring of one valve assists the closing of the other valve. The springs p, q encircle the lower ends of the tappet rods d, e, and the rocker levers g, h work in slots k in the valve stems l, m, being adjustably held by screws t; or the levers may be slotted and engage recessed parts of the valve stems. The ends of the levers g, h may be slit or saw-cut to obtain a tighter fit in the slots k.