baber/WOPTO huggingface dataset:
Patent GB-873748-A (GB)
Title: Improvements in record reading devices
IPC: G06V30/182
Filed: 1958-04-28
Abstract: 873,748. Automatic character reading. INTERNATIONAL BUSINESS MACHINE CORPORATION. April 28, 1958 [April 26, 1957], No. 13384/58. Class 106 (1). A character recognition device comprises record scanning means producing a series of differentially timed signals and processing means translating these signals into a series of signals representing by their amplitudes the shape of the right or left-hand contours of the character. A character written on a sheet 3 is scanned in a raster pattern by a cathode-ray tube 1, the reflected light being received by a photo-cell 4 to produce a train of signals. These are amplified at 5, inverted at 8 to derive negative pulses and passed to a driver 9. When the scanning beam meets the left-hand side of the character driver 9 emits a positive pulse which is applied to trigger 11, 12 to cause valve 11 to conduct and the fall in plate potential is used to cut-off valve 8 to block further pulses until the trigger is reset by differentiated line flyback pulses of the oscillator governing the deflection of the scanning beam. Valve 8 is therefore blocked until the next line and only the first pulse, corresponding to the white on the left of the character is applied to the subsequent circuitry. Positive signals from valve 9 are also applied to a clipping circuit comprising condenser 13, resistors 14, 15 and diode 16. The saw-tooth deflection voltage is applied to diode 16 and clips the applied pulse to a voltage depending on the time of occurrence in the scan. These clipped pulses 17 are applied through diode 18 to a point 19. Negative pulses from inverter 10 are also passed via a similar clipping circuit comprising condenser 23, resistors 24, 25 and diode 26, through diode 28 to point 19. At point 19 therefore, there occurs a series of complementary positive and negative signals the amplitudes of which represent the contour on the left side of the character at successive levels. This signal sequence is integrated in condenser 29 and differentiated in the units 20, 21 to provide signals representing the left-hand contour. A line from the differentiator is connected to an identification device, not described. The signals relating to the righthand side of the character are processed in a similar way in block 30 except that where two pulses occur in one sensing scan due to double lines the second is used to derive signals for further processing. Double lines.-Characters having double strokes or enclosed spaces are detected by a circuit having a double grid valve, the signal pulse being applied directly, to one grid and through a delay line to the other. If a single pulse is applied it has already died away on the lower grid before it reaches the upper grid through the delay and the valve does not conduct. A second pulse arriving shortly after the first coincides with the delayed first pulse and the valve conducts. A further circuit for detecting double pulses is also described.
Patent GB-672922-A (GB)
Title: Improvements in or relating to method of producing pigments from acid dyes
IPC: C09B63/00
Filed: 1949-05-19
Abstract: Organic pigments are made by reacting in aqueous solution an acid dye with a water-soluble zirconium salt.  Emulsifying agents may be present and a dispersion of aluminium hydrate pulp in water may be added to the precipitated dye.  In examples, an aqueous solution of zirconium chloride is added to an aqueous solution of (1) Acid Green (C.I. No. 666); (2) Fast Light Yellow 3G (C.I. No. 636o.  (3) Tartrazine Yellow (C.I.No. 640), in presence of lithographic varnish and sodium oleate, or oleic acid and triethanolamine, or a dispersion of aluminium hydrate pulp is added to the precipitated dye.  Dyes of the anthraquinone, nitro, nitroso, azo, di- or tri-phenylmethane, azine, indamine, indigo, xanthane, thiazole, quinoline, or hydroxyketone series may be employed, and a list of individual dyes is given.
Patent GB-118415-A (GB)
Title: Improvements in Devices for Holding Strips of Stamps.
Inventor: WALSH EDWARD MASON
IPC: B65C9/18
Filed: 1918-08-19
Abstract: 118,415. Walsh, E. M. Aug. 20, 1917, [Convention date]. Stamp-applying.-A tubular holder for use in applying stamps made in strip form comprises a longitudinally grooved part 7, to which is secured an upper part 9 having a rib 10 engaging the longitudinal groove 8. The part 9 has a longitudinal slot 15, which allows the stamps to be advanced through the outlet 12 by the thumb of the user. The stamps are inserted in the holder through a flared mouth 14.
Patent GB-1530027-A (GB)
Title: Pyrazolo-pyridine derivatives
IPC: C07D471/04
Filed: 1976-04-02
Abstract: 1530027 Pyrazolo-pyridine-5-ketones E R SQUIBB & SONS Inc 2 April 1976 [16 April 1975] 13524/76 Heading C2C A process for the production of pyrazolopyridine-5-ketone derivatives of the formula: wherein R is hydrogen or (C 1 -C 7 )alkyl; R 1  is (C 1 -C 7 ) alkoxy or -N(R 4 )(R 5 ); R 2  is (C 1 -C 7 ) alkyl, (C 3 -C 7 ) cycloalkyl, or optionally halo-, alkyl or alkoxy-substituted phenyl; R 3  is hydrogen, (C 1 -C 7 ) alkyl or phenyl; R 4  and R 5  are individually hydrogen, alkyl, cycloalkyl, phenyl or phenylalkyl or together represent a piperidine pyrrolidine, pyrimidine, pyridazine or piperazine radical, are prepared by reacting a compound of the formula: with a strong inorganic acid such as sulphuric, phosphoric or polyphosphoric acid, at a temperature of from 30‹ to 90‹ C.
Patent GB-933492-A (GB)
Title: Improvements in or relating to the jointing of electric cables
Inventor: BATE ERIC CLAYTON
IPC: H01B3/30
Filed: 1961-04-14
Abstract: 933,492. Insulating cable and wire joints. PERMANOID Ltd. April 16, 1962 [April 14, 1961], No. 13533/61. Class 38 (1). In a method of jointing P.V.C. insulated cable an epoxy-reactive vinyl chloride copolymer lacquer is provided which is applied to envelop the bared portions of the conductors and to form a bond with the insulation on drying out, and a catalysed epoxy-resin compound is subsequently cast around the joint. P.V.C. tapes may be applied to the bared conductors prior to application of the lacquer. The lacquer is a solution in a volatile solvent of a copolymer. of vinyl chloride with a minor proportion of copolymerizable monomer having a substituent which is reactive to epoxy groups, e.g. an hydroxyl or carboxyl group. Preparations of suitable lacquers and epoxy resin compositions are described.
Patent GB-570446-A (GB)
Title: Improvements in or relating to devices for facilitating the taking of bearings by compasses
IPC: G01C17/00
Filed: 1943-08-20
Abstract: 570,446. Magnetic compasses. AKTIEBOLAGET SVENSKA ELEKTRO-INDUSTRI COMPANIET. Aug. 20, 1943, No. 13616. Convention date, Sept. 2, 1942. [Class 97 (ii)] In order to facilitate the taking of bearings, especially in aircraft, by compasses having a compass needle playing over a fixed compass rose and actuated by a magnetic system over a gear transmission and having an auxiliary pointer which is manually adjustable in relation to the compass needle 4, the auxiliary pointer 16 is fixed to a gear 15 which is rotatable by moans of a knob 18 through gears, while a compass scale 25 is also rotated in the opposite direction simultaneously by the knob through other gears. IF the auxiliary pointer 16 is adjusted to the desired course and the craft steered, i.e. altered in course, so that the needle 4 coincides with the auxiliary pointer 16, the compass scale 25 will give the desired bearing and directly indicate the course.
Patent GB-489403-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B9/06
Filed: 1937-05-14
Abstract: 489,403. Knitting - machines. HEMPHILL CO. May 14, 1937, No. 13648. Convention date, May 28, 1936 [Class 74 (ii)] A cylinder-and-dial rib machine is provided with transfer instruments 11 in either the dial bed or the cylinder or in both. Each instrument comprises a pair of spaced members between which, e.g. the dial needle 4 can slide, and to facilitate entrance of a cylinder needle 3 therebetween for transfer of the loop, one member is cut away as at 24 to allow lateral movement of the cylinder needle. The two members may be formed integrally, the transfer instrument being of U-shape, each member having a butt 19 projecting therefrom which is filled in by a rectangular piece welded or soldered to the butts. As shown in Fig. 2, the dial rotates about an axis eccentric to the axis of the cylinder, so that in transferring loops from the dial needles to the cylinder needles, the cylinder needles first lag behind the dial needles, the cut-away portion 24 preventing damage to the raised cylinder needles, and subsequently the cylinder needles gain with respect to the dial needles so that at the point of transfer the raised cylinder needles engage, or nearly so, the uncut member to facilitate the transfer of the loop. Alternatively, the dial may be concentric with the cylinder, and a ratchet mechanism may be employed for shogging the dial with respect to the cylinder. The dial cams 8, 9 for knitting rib fabric, and the cams 13, 14 controlling the dial needles during transfer operations are adjustable vertically under pattern control.
Patent GB-253105-A (GB)
Title: Improvements in treating articles with soaps
IPC: C11D9/32
Filed: 1926-05-31
Abstract: 253,105. I. G. Farbenindustrie Akt.- Ges. June 2, 1925, [Convention date]. Cleansing compositions. - Soaps or turkey-red oils may be used in dyeing, fulling, and other baths which are acid or contain calcium or magnesium salts by addition of a hydroasomatic or aromatic sulphonic acid of high wetting power, or a salt thereof, or sulphite-cellulose lye. Such sulphonic acids containing an alkyl group are especially efficient. Amyl-naphthylamine sulphonic acid, and naphthalene sulphonic acids containing one or more isopropyl or butyl groups are specified. In an example 50 kilograms of woollen cloth are fulled with a soap solution of 5 BÚ. made slightly acid by di-isopropyl naphthalene sulphonic acid. Acids of high wetting power are defined as those of which 0.5 per cent aqueous solutions of their sodium salts wet a felted fabric, e.g. of wool or cotton, within an hour. Specification 19759/12 is referred to.. The Specification as open to inspection under Sect. 91 (3) (a) describes also the making, suitable for use in hard or salt water or with acid dye-baths and for washing and fulling fabrics and in carbonizing baths, or saponaceous or turkey-red oil and like compositions, by including therein a hydro-aromatic or aromatic sulphonic acid or salt of high wetting power. An organic solvent, sulphite cellulose liquor, or both may be added. The compositions may be prepared by mixing the acid or its salt or a concentrated solution thereof with fused soap, or kneading or mixing the soap and dry salt together, or by adding the acid during the saponification process. 20 parts by weight of acid or salt to 80 parts of soap is suitable. Borax, alkali, silicates, glycerol, benzine, alcohols, cyclohexanol, ethylene glycol mono-ethyl ether, or other solvent may also be added. Sulphonic acids specified are those obtained by condensing hydro-aromatic or aromatic sulphonic acids with aliphatic. hydro-aromatic, or aromatic-aliphatic alcohols such as isopropyl or butyl alcohols, cyclohexanol, and benzyl alcohol; condensation products of formaldehyde with naphthalene sulphonic acids: and sulphonic acids containing halogen, nitro, amino, or hydroxyl groups. In one example, crude wool is treated at atmospheric or higher temperature for ¢ hr. in a bath containing in each litre about 6 grams of grain or resin soap, 10 grams of butylnaphthalene sulphonic acid, and 4 grams of sodium bisulphite. The sulphonic acid may be replaced by dibutyl-aniline-sulphonic acid, condensation products of cresol-sulphonic acid with formaldehyde. or sulphonated anthracene residues. This subject-matter does not appear in the Specification as accepted.
Patent GB-150779-A (GB)
Title: Improvements in or relating to safety valves, suitable for use in connection with gas distribution systems
IPC: F16K17/12
Filed: 1919-05-30
Abstract: 150,779. Mitchell, E. A. May 30, 1919. Safety valves; safety cut-off valves.-A safetyvalve device particularly applicable for use in connexion with gas governors is adapted to relieve momentary excess pressure in the low-pressure conduit and in the event of a prolonged condition of heavy excess pressure to interrupt the highpressure supply. The pressure-relieving valve comprises a bell-shaped member g adapted normally to dip into a mercury seal surrounding an upstanding rim c around the inlet pipe b. In the event of an excessive rise of pressure, the member g is lifted out of the seal, and the fluid escapes through grooves f in the surrounding casing a to an outlet e. When the member g is raised to its uppermost position, a pin g' overbalances a tumbler weight device to close a valve on the supply conduit. In the form shown, the valve k is situated at the pivot of a tilting- trough i containing a rolling ball j. In a modification, a weighted bell-crank lever is used instead of the rolling ball. A washer n is fitted round the pin g' adapted to engage a flange o.
Patent GB-346591-A (GB)
Title: Improvements in starting devices for internal combustion engines
IPC: F02N9/02
Filed: 1930-05-05
Abstract: 346,591. Starting. HERZMARK, N., 44, Rue Vitruve, Paris. May 5, 1930, No. 13774. Convention date, May 8, 1929. [Class 7 (v).] In a starting device in which combustible mixture is delivered by means of a distributing valve to the engine cylinders on the compression and expansion strokes, the mixture is formed at the moment when starting is to take place, by the injection of liquid fuel into one or more containers of volume comparable with the engine cylinders and previously filled with air under pressure. In one form, Fig. 1, two air chambers A, A<1> of equal capacity are formed by coaxial cylinders a, a<1> mounted upon a head b provided with fuel and air passages and valves. Within the chamber A is a cylinder c of two diameters, fitted with a differential piston d<1>, d<2> held by a spring d against a stop d<3>. Fuel is admitted to the small end c<2> of the cylinder c on opening a needle valve c<4> which lifts a valve c<5>, and compressed air is supplied to the chambers A, A<1> from a pump or container through a conduit provided with a needle valve. At starting, a lever h is operated to open a valve f<2>, whereupon fuel from the space c<2> is expelled by the piston d<2> through the conduit f, f<1> to spraying nozzles in the air chambers A, A<1>. Movement of the piston d<2> is limited by an adjustable stop e. Further movement of the lever h opens a valve k<1>, whereupon mixture from the chambers A, A<1> is admitted to a conduit leading through a distributor to the engine cylinders. During this further movement, a cap g<1> slides on the head of the push rod f<7>, a spring g<2> allowing this movement. In a modification, Fig, 3, the fuel chamber o is formed by endplates o<2>, o<3> connected by flexible bellows o<1> normally expanded by a spring d, and an adjustable screw stop p<1> engaging the plate o<3> is mounted in a stirrup p connected to a flange q on the plate o<2>. A second bellows q<1> connects the flange q to an outer open-ended cylinder r in the air chamber A, so that air pressure in the chamber A acts on the plate o<2> to expel the fuel from the chamber o when the outlet valve is opened. In a further form, the bellows q<1> is omitted and fuel is expelled from the chamber o by a lever engaging the stirrup p. Specification 225,240, [Class 7 (v), Internalcombustion engines, Starting &c.], is referred to.
Patent GB-1063382-A (GB)
Title: Apparatus for electrochemical treatment of workpieces
Inventor: HUGHES HERBERT DENIS
IPC: B23H3/00
Filed: 1963-04-08
Abstract: Apparatus for electrochemical treatment of a workpiece, e.g. by electrochemical plating, cutting or shaping, includes treatment stations <PICT:1063382/C6-C7/1> and a workpiece loading and unloading station to which stations a workpiece is successively conveyed.  The Fig. illustrates the renovation of the big end bore of a connecting rod of an I.C. engine by electrolytic Ni plating.  Fig. 2 shows a rotary table 13 which conveys workpieces 25 stepwise through a) a work loading and unloading station 20, b) a vapour blast cleansing station 21, the vapour blast being loaded with SiO2 dust, c) an electroplating station 22 and d) a spray water rinse station 23.  The work is mounted on a plate 15 which is rotated by a shaft 18 during treatment at each of the stations 21 to 23 but not at 20.  At electroplating station 22, an electrode 31 is inserted into and reciprocated in the workpiece bore and electrolyte fed to the electrode.  The electrode comprises a conductive rod 310 which supports a porous pad 35 receiving electrolyte by circulation from a storage tank (36), Fig. 5 (not shown).  For Ni plating, the rod 310 may be of Ni. Alternatively, an inert anode which is not consumed may be used. Means 341 feed the electrode 31 into the workpiece bore. Cooling water may be delivered to the electrode.  A control panel (50), Fig. 4 (not shown), permits timing of the various operations and controls step by step movement of the table.  Operations may be performed in the required sequence by a programme based on the use of a cam shaft (56) carrying cams (57) which can be adjusted or interchanged as required.  In modifications, treatment stations may provide for mechanical cutting or grinding.
Patent GB-594806-A (GB)
Title: A process for the manufacture of mercaptols
Filed: 1945-06-01
Abstract: Mercaptols of the general formula <FORM:0594806/IV/1> in which R1 is an amino or aminomethyl group protected by an aliphatic or aromatic acid residue such as acetyl residue or benzoyl residue, or is an alkylaminomethyl group, and R2 is a hydrogen atom or a carboxylic acid group or a derivative thereof such as a carboxylic ester group, are prepared by reacting a metal salt of a p-substituted thiophenol of the formula <FORM:0594806/IV/2> in a solvent inert under the conditions of reaction with a dihalogeno compound R2-CH-X2, where X is a halogen atom.  In examples: (1) p-acetaminothiophenol is reacted with dichloracetic acid in alkaline ethanol solution to form bis - (p - acetaminophenyl - mercapto) - acetic acid which may be hydrolysed to the free diamino-compound with hydrochloric acid; (2) p - benzoylaminomethylphenyl mercaptan is reacted with methylene chloride in alkaline ethanol to form bis-(p-benzoylaminomethylphenyl mercapto)-methane; (3) p-acetaminothiophenol is reacted with dichloracetic acid in alkaline ethanol to give bis-(p-acetaminophenyl-mercapto)-acetic acid, which may be hydrolysed to the free amino compound; (4) p-Acetaminomethylphenyl-mercaptan is reacted with methylene chloride in alkaline ethanol to form bis-(p-acetaminomethylphenyl - mercapto) - methane.  Specification 591,392 is referred to.
Patent GB-1294533-A (GB)
Title: Photographic cameras
Inventor: SIMON HORST
IPC: G03B17/42
Filed: 1970-03-23
Abstract: 1294533 Photographic cameras EASTMAN KODAK CO 23 March 1970 [22 March 1969] 13955/70 Heading G2A A photographic camera, for use with photographic film 11 having metering perforations spaced at predetermined intervals longitudinally thereof, is provided with a film transport device and with a movable film scanning member 5 which, when the film is advanced, is moved so that a detent 5f is first brought into contact with the film and then moved into a perforation when one comes into registry with the detent 5f, the detent being actuable, by further actuation of the transport device, to advance the film until the member 5 abuts a stop 13b. Movement of the film by the detent 5f is at least as fast as movement of the film by the transport device. The apparatus is shown in position immediately after shutter release. Sequence of operations. A detent 5a of the member 5 locks the reverse motion of a cocking lever 4 by engaging a tooth 4a thereof, while a projection 5e of the member 5 is engaged by an arm 1c of shutter drive lever 1 thereby enabling a spring 6 to rotate the member 5 in the direction C about a pivot 8 so as to urge the reverse motion locking. As the lever 4 is rotated anti-clockwise (as seen), a projection 4b thereof rotates a transmission lever 9, and hence the lever 1, clockwise, to the position of Fig. 2 (not shown), where the lever 1 is held by a notch 10a of shutter release member 10. Shortly before reaching the Fig.2 (not shown) position, a detent arm 1a of the lever 1 engages the projection 5e and pivots the member 5 out of contact with a projection 13a of the housing 13b so that the spring 6 can slide the member 5 into contact with the advancing film 11 Fig. 2 (not shown). Further rotation of the lever 4 brings a perforation (11a) Fig. 3 (not shown) under the detent 5f of the member 5, which is then further urged to the right (as seen) by the spring 6 until the detent 5f is fully in the perforation. The film continues to be advanced, the member 5 pivoting about the pivot 8 and thereby disengaging the projection 5e from the arm 1a while bringing arm 5c into contact with a tooth 4a, until the detent 5f abuts the stop 13b and the projection 5e abuts a surface 1b of the lever. The shutter release lever 10 is moved in the direction H, since movement of the member 5 to its Fig.3 (not shown) position cleared an arm 5d from a slot 10b as in lever 10. As the lever 10 is moved, the lever 1 is freed from the notch 10a and is rotated anti-clockwise to operate the shutter. This rotation returns the transmission lever 9 and the scanning member 5 by engagement of the arm 1c and projection 5e, to their Fig.1 positions, with the release lever 10 locked against further exposure action until after the next film winding step.
Patent GB-698136-A (GB)
Title: Improvements in rim brakes for bicycles and like light vehicles
IPC: B62L1/12
Filed: 1951-06-13
Abstract: 698,136. Cycle brakes. ALTENBURGER, K. June 13, 1951 [July 19, 1950], No. 13976/51. Class 136 (i) Rollers 5 are interposed between the shanks 3 of a torsion pull-off spring and the yoke arms 1, 2 carrying the shoes of a rim brake. The rollers may be carried on the bent ends 4 of the spring to engage the inner surfaces of the yoke arms, as illustrated, or they may be carried by the yoke arms to form abutments against which the shanks of the spring bear.
Patent GB-695418-A (GB)
Title: Novel polycyclic nitrogen-containing compounds and process for the manufacture thereof
Inventor: COHEN AARON
Filed: 1951-06-14
Abstract: The invention comprises the compound of the formula <FORM:0695418/IV (b)/1> and its production from tertiary amines of the formula <FORM:0695418/IV (b)/2> by (1) heating with methylamine under pressure and hydrolysing the acid methylamide so formed, or (2) heating the potassium salts with methylamine under pressure when the free acid is produced directly.  The tertiary amines are obtained by treating with R111NHRIV and formaldehyde either 2-hydroxy-1-menaphthyl-malonic acid or its lactone, i.e. 5 : 6-benzo-3 : 4-dihydrocoumarin - 3 - carboxylic acid.  The groups R111 and RIV are methyl or ethyl, or one may be benzyl, or R111NHRIV may be methylamine, piperidine or morpholine. 2-Hydroxy-1-menaphthyl-malonic acid is made by alkaline hydrolysis of its dinitrile or of 5 : 6-benzo-3 : 4-dihydrocoumarin-3-carboxylic acid or nitrile or ester thereof. 5 : 6-Benzo-3 : 4-dihydrocoumarin-3-carboxylic acid is made by hydrogenolysis of its benzyl ester or by treatment of 2 - hydroxy p  - 1 - menaphthyl - malonic acid with hydrogen bromide.  Examples are given of all the above steps, using as amine R111NHRIV dimethylamine, diethylamine, morpholine, piperidine, methylamine and methylbenzylamine.