baber/WOPTO huggingface dataset:
Patent GB-760053-A (GB)
Title: Esters of chloramphenicol with aryl-aliphatic carboxylic acids and process for their manufacture
Filed: 1954-03-29
Abstract: The invention comprises 3-monoesters of chloramphenicol with aryl-aliphatic carboxylic acids having the esterified carboxyl group in the saturated or unsaturated aliphatic side chain of the acid radical, which preferably is of the general formula <FORM:0760053/IV(b)/1> (wherein R is hydrogen or lower alkyl, n1 is 0, 1 or 2, and n11 is 0 or 1, but n1 and n11 are not equal to one another), and the preparation thereof by esterifying chloramphenicol with an equimolecular amount of the chloride of the appropriate aryl-aliphatic acid in the presence of not more than an equivalent amount of a hydrogen chloride acceptor, such as anhydrous pyridine, at a temperature below 20 DEG  C.  Examples describe the preparation of the phenylacetic, cinnamic, (+)-a -phenylbutyric and cinnamenylacrylic esters.
Patent GB-102890-A (GB)
Title: Improvements in Plows.
Inventor: MCSWEENEY JAMES
IPC: A01B3/08
Filed: 1916-06-29
Abstract: 102,890. McSweeney, J. June 29, 1916. Ploughs.-The plough beam 1 is provided with a slot 2 through which pass (1) a curved brace 3 adjustably connected to a plough standard 4 pivoted at 6 to the beam, (2) a coulter 37, (3) filling-pieces 31, 32 provided with recessed parts to engage the brace 3 and the edge of the beam 1, (4) a wedge 36 which is adapted to be drawn upwards by a nut 41 and threaded portion 40 to clamp the other fittings in the slot. Handles 8 pivoted to the beam are adjustably connected by links 13 to its rear end. A blade or shovel 18 is mounted at the lower end of the standard and may be adjusted vertically by moving a clamping- plate 24, to which the blade is secured by a bolt 19. The end of the plate 24 is turned down and is adapted to engage in notches formed at the rear of the standard when the plate is clamped in position.
Patent GB-418176-A (GB)
Title: Improvements in presser plates for book stitching machine
IPC: B42B2/02
Filed: 1934-03-23
Abstract: 418,176. Sewing-machines. SCHRAMM, C., R.F.D. Route 2, North Coventry, Connecticut, U.S.A. March 23, 1934, No. 9179. [Class 112.] Book - stitching machine threads are severed by a transversely movable part 7 of the presser foot. Immediately after the stitching of the last signature, the part 7 is moved relative to the part 8 which is secured to the presser bar, by a camactuated lever and the thread is cut by a knife edge 18.
Patent GB-933748-A (GB)
Title: Vibratory feeder controls
IPC: B65G47/00
Filed: 1962-03-09
Abstract: 933,748. Automatic control systems. CHAIN BELT CO. March 9, 1962 [June 13, 1961], No. 9222/62. Class 38 (4). [Also in Group XXX] The feed rate of material supplied to processing apparatus by a resonant vibratory conveyer is controlled by varying the tuning of the conveyer in dependence upon the load current of the motor driving the apparatus so as to maintain a substantially constant load in the apparatus. As shown, material from a hopper 1 is fed by a vibratory conveyer 2 into processing apparatus 3, e.g. a crusher or mixer, driven by a motor 5 energized from supply leads 6 by way of a control station 7 and leads 8. The vibrator 2 is driven by a variably tuned eccentric weight vibration exciter comprising a motor 11 which has eccentric weights 21 on its shaft and which is mounted in an exciter mass 12 resiliently held between air springs 13, 14 on end plates 15, 16 of a drive housing 17 rigidly attached to the conveyer 2. The amplitude of vibration of the mass 12, and therefore the feed rate of the conveyer, varies according to the inflation pressure of the air springs 13, 14 which are supplied with air through a pipe 60 from a pressure source by way of the control station 7 and a pipe 20. The control station 7 (Fig. II, not shown), includes a first contact-making ammeter responsive to a lower limit of load current in the motor 5 and controlling an electrically actuated air valve which can reduce the inflation pressure of the springs 13, 14 by allowing air to bleed to the atmosphere, and a second ammeter responsive to an upper limit of load current and controlling a second valve which can increase the inflation pressure of the springs 13, 14 by supplying air to them by way of a high-pressure regulator. In operation, the contacts of the high-current ammeter close as the motor 5 reaches its full load operating condition ; high-pressure air is then fed to the springs 13, 14, whereby the vibratory conveyer is de-tuned and the rate of feed reduced. This continues until the contacts of the ammeter open at which point the associated air supply valve closes. If the feed rate is then such that the motor load decreases to the limit determined by the low-current ammeter, the pressure in the air springs is automatically reduced by operation of the valve associated with this ammeter, and the feed rate of the conveyer is increased. The load on the processing apparatus 3 is thus maintained substantially constant.
Patent GB-790415-A (GB)
Title: Improvements in or relating to alternate-handed latches
IPC: E05B55/00
Filed: 1956-03-26
Abstract: 790,415. Latches. DEXTER INDUSTRIES, Inc. March 26, 1956 [March 28, 1955], No. 9306/56. Class 44 An alternate-handed latch comprises a housing 10, 11, a front plate 16 rotatably mounted with respect to the housing and having an aperture, projecting means 34, 35 and 36, 37 on the housing extending towards the axis of the housing and disposed to provide axially-spaced abutments, a plate 30 received between the abutments for rotation with respect to the housing, a bolt 24 slidably received in the front plate aperture and having a stem 28 extending rearwardly, key means for maintaining non-rotative relationship between the bolt and the plate, and retracting means including a link 48 rotatably connected to the bolt stem. As shown, the two parts of the housing are held together by means of a locking plate 17, ears 18 and 19 of which engage apertures in the housing sections, and by a rotatable sleeve 13 which is secured to the front plate 16: Detents 20 and 21 engage corresponding apertures in the body portions 10 and 11 when the sleeve and thus the bolt is rotated to one of two positions 180 degrees apart. A deadlocking bolt 23 is slidable with respect to the bolt 24 and carries a plate 25 forming part of a dead locking mechanism, such that when the bolt 24 is shot as the door is closed, the bolt 23 is retained between the lock keeper and the front plate 16 and any attempt to force the bolt 24 by means of an instrument inserted between the door and its jamb, swings a member 26 pivoted to the bolt into engagement with the side of an opening in the plate 30 through which the stem 28 and member 26 normally slide. The bolts 23 and 24 are located with respect to the plate 30 by a pin 31 on the plate 30 which engages the bolt 23 and by a rod 33 on the bolt 24 which slidingly engages the plate 30. The link 48 is formed with an opening 50 which receives and retains the end of the bolt stem 28 and is of such shape as to permit relative rotation of the stem and link while still retaining engagement. Specification 790,414 is referred to.
Patent GB-260167-A (GB)
Title: Improvements in or relating to violins or like stringed instruments
IPC: G10F1/18
Filed: 1926-04-09
Abstract: 260,167. Wade, H., (Mills Novelty Co.). April 9,1926. Actuating by electric power. - In a tremolo device for a mechanical violin &c. the pump plungers 38 are connected by arms 39 to a shaft 40 rocked by an arm 43 connected to the core 46 of a double solenoid 47, 48, the coils of which are alternately energized by a switch 58 rotated by a motor 64. The throw of the oscillating core 46, and therefore also the amplitude of the tremolo vibration, is adjustable by means of screwed end-caps 46a which strike the ends of the coils; sound-deadening felt washers 46<b> may be provided. To increase the rate of vibration, a resistance in the motor circuit is short-circuited.
Patent GB-599441-A (GB)
Title: Improvements in bags for refloating ships
IPC: B63C7/12
Filed: 1945-04-16
Abstract: 599,441. Refloating ships. VEROT, H., and IMBERT, J. April 16, 1945, No. 9396. [Class 68 (ii)] A bag for refloating ships comprises a number of segments A, each constituted by two sheets of waterproof-rubberized material D, E with a rubber-encased longitudinal metal reinforcement C between them, and strips M covering the abutting edges of adjacent segments. The segments may be made by first laying rubbercoated textile material E then a crude rubber sheet, steel cable reinforcements, another rubber sheet and finally the layer D similar to E. The segments are then passed through a vulcanization press, the cables C are cut and folded over cross-bars H, and the ends are completed on a small press with a shaping mould. The bag may be spherical, or cylindrical with hemispherical ends as shown, the cylindrical part being provided with transverse cable reinforcements B, and the segments are then joined by attaching these cables together before applying the rubberized strips M. The ends of the segments are clamped between plates I and J. Specification 569,328 is referred to.
Patent GB-627774-A (GB)
Title: Improvements in and relating to perspective drawing instruments
IPC: B43L13/14
Filed: 1947-04-09
Abstract: 627,774. Drawing-instruments. VENTRIS, M. G. F. April 9, 1947, No. 9396. [Class 97 (iii)] Apparatus for use in drawing perspectives comprises a cross-shaped rule, stamped or cut from transparent material, bearing on its longer axis a straight reference line engraved or printed on the under-surface, and having a pivot hole formed at one end and bearing on its shorter axis a similarly engraved or printed scale which is perpendicular to the reference line and whose overall length.subtends an angle of approximately 60 degrees at the centre of the pivot hole. In use, the pivot C, Fig. 2, is fixed at the chosen viewpoint on the centre-line e and the transverse scale a measures the tangent of the angular displacement of the line of sight to any point, e.g. F, on the plan from the chosen centre line e. The instrument is pivoted about C until the reference line b passes through the point F and the reading, 40, as shown proportional to the tangent, is read off on the scale a. To obtain the vertical coordinates a scale d, Fig. 3, is prepared from the elevation drawings, on which is marked, at the appropriate scale, the heights of all the reference points such as F to be used in drawing the perspective. A line is ruled across this height scale representing the height of the chosen viewpoint and the scale d is then applied to the plan-drawing so that this line coincides with the centre line e and the front edge of the scale lies over the reference point F. The instrument is pivoted until the reference line b passes through the graduation on the height scale corresponding to F, when the intercept by the line e on the scale a will give the reading of the desired co-ordinate. The perspective view is drawn by plotting the horizontal and vertical co-ordinates thus obtained on, for example, squared paper. The scale a may be marked with. "Left," " Right," " Up " and " Down " to indicate which side of the centre line the reference point is to be plotted. A second reference line b for example, at 1 to 5 millimetres from the first, may be provided, by means of which the horizontal co-ordinates of a stereoscopic pair to the first perspective may be obtained. Alternatively the scale a may be provided with a second numbering separated from the first by the required stereoscopic distance and preferably printed in a different colour.
Patent GB-753889-A (GB)
Title: Improvements in and relating to reciprocating compressors
IPC: F04B39/04
Filed: 1954-03-31
Abstract: 753,889. Reciprocating compressors. PETRUCCI, O. March 31, 1954 [April 3, 1953], No. 9405/54. Class 8(1). A compressor comprising opposed cylinders formed in a body 1 has rigidly connected pistons 4 reciprocated by a rocking lever 23 pivoted at 17 and driven from a flywheel 19 by a pin- and-slot mechanism 10, 11, and a diaphragm 7 clamped to the cylinder block and the lever 23 by enlarged portions 25, 26, whereby the cylinder space is sealed from the crank case.
Patent GB-1423973-A (GB)
Title: Aqueous coating compositions
IPC: C09D5/44
Filed: 1974-03-01
Abstract: 1423973 Aqueous epoxy resin composition M & T CHEMICALS Inc 1 March 1974 [28 March 1973] 9406/74 Heading C3B An aqueous coating composition comprises (a) a crosslinkable reaction product of a polyfunctional epoxide with a monoalkanolamine and/or dialkanolamine having one of the following general formulae wherein R<SP>1</SP> and R<SP>2</SP> are C 2 -C 3  alkylene radicals, A represents the residue of the polyfunctional epoxide derived from the reaction of epoxy radicals with a hydrogen atom bonded to the nitrogen atom of the alkanolamine x = 1 or 2, n=1-100, and Y is an anionic radical derived by removal of a hydrogen atom from a mineral acid or the carboxyl radical of a carboxylic acid, (b) a latent, heat-activable crosslinking agent which is a condensation product of formaldehyde with a phenol, urea or melamine; and (c) a liquid comprising at least 50% wt. water any remainder being a dissolved mineral acid, a carboxylic acid or a water-missible organic liquid. Component (a) preferably comprises 25-85% wt. of the composition and component (b) preferably comprises 5-45% wt. of component (a). Part of the alkanolamine may be replaced by a corresponding alkylamine, e.g. diisopropyl amine. In the examples aqueous compositions are prepared using as component (a) the product obtained by reacting mono- and di-ethanolamine with a diglycidyl ether of bisphenol A or bis-(4-hydroxyphenyl)methane using ethyleneglycol monobutyl ether as solvent and subsequently reacting the product with formic acid and then adding water; as component (b), urea-HCHO resin, mixed allylethers of mono-, do- and trimethylol phenols, a phenol-HCHO condensate or a melamine- HCHO condensate. In another composition component (a) is prepared by reacting mono- and di - ethanolamine with 3,4 - epoxycyclohexylmethyl - 3,4 - epoxycyclohexane carboxylate; component (b) is a urea-HCHO condensate, and component (c) is water, isopropanol and ethylene glycol monobutylether. The compositions are applied to Al, tin plated steel or steel panels and cured by heating or used to coat a steel plate electrophoretically.
Patent GB-866936-A (GB)
Title: Stabilised halogen containing polymers
IPC: C08K5/3445
Filed: 1958-03-26
Abstract: Halogen-containing polymers, e.g. chlorinated rubbers, are stabilized by addition of a pyrazole of the general formula:-  <FORM:0866936/IV (a)/1> wherein R, R1 and R11 are hydrogen, halogen, cycloalkyl, aralkyl, alkyl (e.g. containing 1-18 C atoms), or aryl radicals, not containing ethylenic unsaturation; the aryl radical may be substituted by, for example, Cl, Br, OH, alkyl or alkoxy. The Specification lists a number of pyrazoles; in Examples, 3 : 5-diphenyl-, 3-phenyl-, 3-methyl-5-phenyl-; 3-phenyl-5-chlorophenyl- and 3-phenyl-5-p-methoxyphenylpyrazole are used.  The polymers specified are those of vinyl and/or vinylidene chloride, chlorobutadienes, chlorostyrenes and copolymers thereof with, e.g., vinyl acetate propionate or benzoate, methyl, ethyl, butyl and allyl acrylates and methacrylates, maleic and fumaric acids, styrene, divinylbenzene and alpha-methylstyrene, butadiene and isoprene, acrylonitrile and anides and anilides of acrylic and methacrylic acids, and halogenated resins such as chlorinated natural and synthetic rubbers, chlorinated polyvinyl chloride and chlorinated polystyrene; however a vinylchloride polymer and particularly polyvinylchloride itself is preferred.  The following plasticizers, the use of which is optional, are mentioned:-aliphatic and aromatic esters of, e.g. phthalic, adipic, azelaic and sebacic acids, and wholly or partially aromatic esters of phosphoric acid; many such plasticizers are specified.
Patent GB-1254600-A (GB)
Title: Method of and means for promoting adhesion between a plastics film and a substrate
IPC: B29C48/21
Filed: 1969-02-24
Abstract: 1,254,600. Laminates. TETRA PAK A.B. 24 Feb., 1969 [12 March, 1968], No. 9699/69. Heading B5N. Adhesion between a substrate and a substantially molten plastics film is promoted by oxidizing the bonding surface of the film shortly before application to the substrate by means of an electric discharge between two adjacent electrodes both positioned on the same side of the film so that the discharge acts upon the bonding surface of the film but has negligible effect on the substrate. The substrate may be pre-treated by surface cleansing, heat or flame treatment, or oxidation. In the Figure, the surface of the plastics film 7 is oxidized by extruding the film past an electrode 4 which is an aluminium rod or metal wire and an earthed rotatable electrode 5 comprising an aluminium or iron pipe 10 and insulation 11. Alternatively the electrode 5 may be a glass rod surrounding a metal core or may be replaced by an electrode of the type 4. The film is then laminated with one or two substrates 6, 8 by means of a rubber roller 2 and cooling roller 3. Electrodes 4, 5 may be placed on both sides of the film to oxidize both surfaces thereof. The discharge may be movable to sweep over the film surface. Adhesion may be further promoted by situating the electrodes in an atmosphere of high oxygen content.
Patent GB-1389674-A (GB)
Title: Solutions for pressure sensitive record material
IPC: B41M5/165
Filed: 1972-03-02
Abstract: 1389674 Solutions for pressure sensitive record materials; diarylalkenes NIPPON PETROCHEMICALS CO Ltd 2 March 1972 [2 March 1971 15 March 1971] 9755/72 Headings C4A and C5E [Also in Division D2] A solution, for use in a pressure-sensitive record material, comprises a dye-precursor and a solvent which is a normally liquid compound containing 13-18 carbon atoms and having the general Formula (I) wherein each of R 1  to R 5  is H, Me or Et and R 6  is H, Me, Et, isopropyl, n-propyl, tert-butyl or sec butyl, the total carbon atom number of R 1  to R 6  being 0 to 5. The solution in microcapsules may be coated on to a sheet to form the pressuresensitive record material. Suitable electrondonating dye precursors are diarylphthalide, leucauramine, acylinamine, α,#-unsaturated arylketone, basic monoazo dye, Rhodamine B lactam, polyaryl carbinol and 8<SP>1</SP>-methoxybenzoindolinospiropyran. Compounds of the Formula (I), where R 1  and R 2  are H, R 3  is Me, R 4  and R 5  are each H, Me, or Et, R 6  is C 1 -C 4  alkyl, and the total carbon number of R 4 , R 5  and R 6  is 1 to 4, are prepared by reacting styrene with C 7 -C 10  aromatic hydrocarbons at less then 30‹ C. using 80- 96% H 2 SO 4  as catalyst. A C 8  aromatic stream containing at least 30% ethylbenzene may be dehydrogenated and the styrene produced reacted with the xylene or toluene in the stream without separation. Compounds of the Formula I where R 3  is H can be prepared by reacting benzyl chloride or a derivative thereof with toluene, xylene or ethylbenzene in the presence of a Friedel-Crafts catalyst or by reaction of formaldehyde with toluene, xylene or ethylbenzene.
Patent GB-642620-A (GB)
Title: Improvements relating to pipe hooks
IPC: F16L3/04
Filed: 1948-04-07
Abstract: 642,620. Hooks. RICHARDS, E. April 7, 1948, No. 9789. [Class 89(ii)] A pipe hook has the space between the arcuate-pipe support d and the head end of the shank filled with material e to act as reinforcement and provide an extended flat driving- surface f. The shank, which is fluted, may have a semicircular flange g to limit penetration.
Patent GB-1206675-A (GB)
Title: Interstage couplings for u.h.f. equipment
Inventor: PITKIN SYDNEY RICHARD
IPC: H03F1/18
Filed: 1968-02-29
Abstract: 1,206,675. Circuit assemblies. STANDARD TELEPHONES & CABLES Ltd. 29 Feb., 1968, No. 9823/68. Heading H1R. [Also in Division H3] The couplings between the transistors (e.g. Tr1 and Tr2, Fig. 1, not shown) of a u.h.f. or v.h.f. amplifier are in the form of 1/4 wavelength or less low-Q strip transmission lines (e.g. TL2) having a characteristic impedance of less than 50 ohms, for maximum power transfer. The circuit is a power amplifier for a transmitter, the output circuit and aerial being driven by a parallel pair of transistors (Tr3, Tr4). The D.C. bias for all the transistors is supplied by associated inductances (L1-L8). The low-Q strip transmission line couplings for the amplifier are made by etching away portions of a copper layer on an insulating plate (Fig. 3, not shown) to leave tracks (TL2, TL4), and on a second plate (Fig. 4, not shown) to leave tracks (TL1 and TL3). Both plates 3, 7, Fig. 6, have metallized layers on their reverse faces and are overlaid by respective insulating plates 6, 8 having a layer on one face only and arranged with the non-metallized face contacting the tracks (TL1-TL4). A final copper clad plate 9 carries the remaining circuitry, the inter-connections and some of the inductances (L1-L4, Fig. 5, not shown) being formed from the copper layer, and the other inductances (L5-L8) and the capacitance being separate units wired to the plate. The transistors are mounted in clips 1 attached to the lower plate, and their electrodes connected through appropriate holes in the plates.
Patent GB-744917-A (GB)
Title: Reclaiming of rubber
Inventor: SAUL WALTER
IPC: C08J11/18
Filed: 1953-04-11
Abstract: Rubber is reclaimed by mechanical working at an elevated temperature in the presence of a reclaiming oil, e.g. aromatic or naphthenic oils obtained in the refining of petroleum, or bitumen or a mixture of bitumen and oil, and either an ester of a monobasic organic acid, e.g. lauric or oleic acid and a polyglycol, e.g. polyethylene glycol or a salt of a monobasic organic acid and a quaternary ammonium compound, e.g. pyridinium compounds having linked to the nitrogen atom an alkyl chain containing 10 to 22 carbon atoms.  A suitable substance may be cetyl pyridinium oleate.  The ester or salt is preferably soluble in at least 5 per cent, by weight, of the oil.
Patent GB-455478-A (GB)
Title: Improvements in photographic roll film cameras combined with exposure meters
IPC: G03B17/06
Filed: 1936-04-03
Abstract: 455,478. Photographic cameras combined with exposure meters. ZEISS IKON AKT.-GES., 72, Schandauerstrasse, Dresden, Germany. April 3, 1936, No. 9916. Convention date, April 12, 1935. [Class 98 (i)] In a roll-film camera provided with a photo - electric exposure meter, the moving-coil measuring instrument 5 of the meter is housed between the objective 4 and a film spool 2, and is viewed through a window in the top of the camera. The photo-electric cell, fitted with a prismatic window, is mounted on the front wall of the camera on the other side of the objective 4. A short-base range finder 9 coupled with the objective is also provided. The camera may be of the kind in which the film-feed and shutter mechanisms are coupled so that a single exposure or a rapid succession . of exposures may be made.
Patent GB-327285-A (GB)
Title: Improvements in sheet metal drums
IPC: F16J13/00
Filed: 1929-03-28
Abstract: 327,285. Pearson, W. E., and Pearson, Ltd., W. March 28, 1929. Seamed joints.-Relates to sheet-metal drums &c. of the type wherein the ends are double seamed and rolled to the body as shown at f, Fig. 1, and consists in making the longitudinal seam in known manner by flanging the mating edges internally and connecting them with a double flanged hook-plate c, the whole seam being pressed or rolled and sweated or welded externally, and smoothed off at the point where the flanges abut.
Patent HK-172896-A (HK)
Title: Process for preparation of polyol fatty acid ester and glyceride mixture obtained
Inventor: MIYAMOTO AYARI
IPC: A61K47/14
Filed: 1996-09-12
Abstract: A polyol fatty acid ester having mixted acid groups is produced by reacting a partial ester of a polyol and a branched fatty acid with a a straight fatty acid or a lower alcohol ester thereof in the presence of a lipase. The obtained glyceride mixture contains a large amount of diglyceride having a branched, saturated fatty acid group and a straight, saturated fatty acid group.