baber/WOPTO huggingface dataset:
Patent GB-196431-A (GB)
Title: Organic mercury derivatives of aurin tricarboxylic acid and their alkali salts
IPC: C07F3/12
Filed: 1922-02-14
Abstract: Mercury derivatives of aurintricarboxylic acid and alkali salts thereof are obtained by heating with mercury compounds a solution of an alkali salt of the acid, or a suspension of the acid in a solution of sodium chloride.  The products, which may contain one, two, or three atoms of mercury in the molecule, are substitutes for mercury salicylate; the free acids are insoluble in water but soluble in sodium chloride solution.  According to examples, products containing sodium chloride are prepared by boiling aurintricarboxylic acid with sodium bicarbonate, mercuric chloride and water, filtering, and evaporating; products not containing sodium chloride are obtained by replacing the mercuric chloride by mercuric oxide, the mercuric aurintricarboxylates being precipitated by acidifying with sulphuric acid.
Patent GB-1152404-A (GB)
Title: Improvements in or relating to The Detection of Leaks in Bottles for Liquefied or Compressed Gas
IPC: F17C3/02
Filed: 1967-01-30
Abstract: 1,152,404. Ultrasonic inspection devices. COMPAGNIE GENERALE D'AUTOMATISME. 30 Jan., 1967 [30 Nov., 1966], No. 4393/67. Heading H4D. In a system for detecting leaks from bottles 3 of liquefied or compressed gas the bottles are passed through a tank of liquid 2, any bubbles formed in the liquid intercept a beam of ultrasonic energy propagating between transmitter 21 and receiver 22 and an alarm is actuated if, during passage of a bottle, the received signal strength drops below a threshold value more than a pre-selected number of times or for longer than a pre-selected time. As shown, water is supplied to tank 1 via conduits 25 and hood 5 and a head h 1  is maintained by vacuum pump 9 and constant-head device 10. Unit 27 provides an output pulse each time the received signal strength is below the threshold, i.e. for each bubble, and the pulses are counted at 28. Alarm 31 is actuated when a preset count is reached. For large leakages the bubbles tend to overrun one another and result in the received signal remaining below threshold for an appreciable time. Unit 32 then actuates the alarm 31 after a preset time. For greater leakages hood 5 becomes filled with gas and the received signal strength remains below threshold for an even greater time. This condition is sensed by unit 36 and causes passage of the bottles to stop until head h 1  is restored. Provision is made for counting faulty and non- faulty bottles separately on registers 41, 42 and for ejecting faulty bottles from a conveyer.
Patent GB-861348-A (GB)
Title: Polymer compositions
IPC: C08K5/01
Filed: 1958-02-11
Abstract: Compositions of solid polymers or copolymers of mono-olefinic hydrocarbons with not more than 5 carbon atoms in the molecule, e.g. ethylene, propylene, and isobutylene and an at least partially hydrogenated polyphenyl, have improved stability in tensile strength, and elongation on exposure.  Low and high density polyethylene or mistures thereof, or copolymers with propylene or butylene, or copolymers with styrene, vinyl chloride, acetate and methyl ether, vinylidine chlorofluoride and methyl methacrylate may be used.  The polyphenyl contains at least 3 linked benzene nuclei and is preferably ter- or quaterphenyl and may be obtained by the partial or complete hydrogenation of isomeric polyphenyls using a catalyst such as nickel.  The polyphenyl, normally in proportions of not more than 15 parts per 100, but for the preparation of concentrates in proportion up to 50 parts, is intimately mixed with the polymer by hot or cold milling or by adding to a solution or suspension of the polymer in an organic solvent, and the composition may be used to form films, fibres, or other shaped articles.  Fillers, resins, pigments, dyes, lubricants, anti-static agents and anti-oxidants may also be present.
Patent GB-229670-A (GB)
Title: Improvements in safety devices for aeroplanes
IPC: B64C25/42
Filed: 1925-02-18
Abstract: 229,670. Lepinte, A. Feb. 19, 1924, [Convention date]. Pyrotechnic apparatus.-A gas discharger for retarding the fall or aceelerating the speed of an aeroplane comprises a steel cylinder 1 having a lining 2 of asbestos and another lining 3 of silica or refractory porcelain. The cylinder 1 is closed at one end and terminates at the other end in a nozzle closed by a plug 4 screw-threaded in such a manner that it is only discharged at very high pressure. The interior space 5 is filled with a charge which is ignited by an electric igniter 6. The. discharger is secured to an aeroplane by strengthening rings 7. The nozzle is bent to direct the discharge away from the aeroplane.
Patent GB-563058-A (GB)
Title: An improved tool-holder for lathes
IPC: B23B29/20
Filed: 1943-03-20
Abstract: 563,058. Turning. JONES, A. S. March 20, 1943, No. 4549. [Class 83 (iii)] A multiple tool-holder for a lathe comprises a block 1, which may be square, as shown, having flat vertical sides and provided with two pairs of parallel holes 5, 6 and 7, 8, for the reception of tool bars such as 9. Each tool-bar carries a collar 17 engaging a machined face 18 on the block 1, the collar being secured to the bar by a set-screw so as to determine the projection of the bar from the block and being provided with a stop pin 20 adapted to engage a fixed pin 21 in the block so that the bar may be replaced in the block with the cutter at the correct height. An end stop may be provided consisting of a collar 24, Fig. 3, adjustably secured to the tool bar 9 by a screw and carrying an angled member 27 adapted to engage the end of the work. The block 1 is secured to the slide rest by a central bolt 3 and the tool bars are secured by screws 22. When using a screwing or tapping tool, the tool is secured to a sleeve splined on the bar 9 and abutting on a collar 17 so that the bar may be withdrawn axially from the sleeve for subsequent unscrewing of the tool from the work.
Patent GB-130692-A (GB)
Title: Improvements in or relating to Caps for Armour Piercing Projectiles.
Inventor: HADFIELD ROBERT ABBOTT
IPC: F42B12/08
Filed: 1918-03-14
Abstract: 130,692. Hadfield, Sir R. A., and Jack, A. G. M. March 14, 1918. Projectiles.-Consists in making the front face of armour-piercing caps a for projectile noses b with cutting or indenting points, blades, edges, or ridges d, in order to give them a better grip on the armour-plate. The Figure also shows part of a hollow point or air-deflector c.
Patent GB-292635-A (GB)
Title: Improvements in sharpening apparatus for rotary cutters
IPC: B24B3/44
Filed: 1927-02-18
Abstract: 292,635. Podmore, A. Feb. 18, 1927. Machine cutters. grinding in situ.- Apparatus for sharp ening the eccentric edges of rotary and reciprocating cutters employed in cigarette rod cutting machines &c. con sists of an emery disc 18, which may have a slight coned face, mounted to rotate in a bracket 8, adjustable on a fixed bracket 6 by a screw 11. The axis of the disc is inclined to give the correct bevel to the knife 23 and also so that as the knife is reciprocated axially all points of the edges engage the disc. The mounting of the disc may be of a swivel or ball type; the disc either :nay be rotated frictionally by the knife, or may be driven positively. A burr removing disc 20 is mounted, to be driven by friction with the knife, on the reciprocating housing 22 of the knife, or it may he mounted on an inclined axis on a stationary part of the machine. The Privisional Specification refers to the sharpening of cutters without a reciprocating movement.
Patent GB-419798-A (GB)
Title: Improvements in devices for mechanical separation of dust in gases
IPC: B01D45/12
Filed: 1933-02-15
Abstract: 419,798. Centrifugal gas cleaners. SOC. D'ELECTRICITE DE LA REGION DE VALENCIENNES ANZIN, 75, Boulevard Haussmann, Paris. Feb. 15, 1933, No. 4647. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 29, 1934]. [Class 23.] Dust laden gases are freed from the dust particles during their passage through a separator which has a number of curved guide members d<1>-d<5> to divide the gaseous flow into number of streams of small thickness. Each guide member has a dust trap P; these traps are offset in relation to each other owing to the different lengths of the guide members, and they are inclined to permit the dust particles to descend to the passages t and the chamber C.
Patent GB-1278194-A (GB)
Title: Oscillator device
IPC: H03B5/24
Filed: 1970-01-30
Abstract: 1278194 Frequency modulation TELEVERKETS CENTRAL FORVALTNING 30 Jan 1970 [30 Jan 1969] 4698/70 Heading H3R In a Wien Bridge oscillator comprising a potential divider C1R1, C2R2, the oscillation frequency is controlled by shunting resistors R1, R2 with resistors R<SP>1</SP>1, R<SP>1</SP>2, having values such that In an FSK system, an input signal I renders transistors Tr1, Tr2 conducting or non-conducting to connect or disconnect the resistors R<SP>1</SP>1, R<SP>1</SP>2. Maintaining the resistance ratio constant in the two states of the input signal ensures that the amplitude of the output signal remains constant, and further stabilization is provided by diodes D1, D2. In a modification, Fig. 2 (not shown), a.g.c. is provided by replacing R3 by a F.E.T. controlled by the a.g.c. signal. Tr1, Tr2 may also be F.E.T.'s.
Patent GB-189033-A (GB)
Title: Device for producing increased draught in boilers, especially locomotive boilers
IPC: F23L17/16
Filed: 1922-02-17
Abstract: 189,033. Pohjanpalo, S. Feb. 17, 1922. Blast apparatus. - Between the blast-pipe 1 and smoke stack 3 of a locomotive or other boiler, is arranged an intermediate pipe 2 having a corrugated surface so that the steam and gases issuing therefrom will have a larger contact surface with, and produce an increased suction on, the gases in the smoke-box. Two or more intermediate pipes such as 2 may be superpcsed.
Patent GB-1375947-A (GB)
Title: Control of freeze-drying process
IPC: G05D16/20
Filed: 1972-02-01
Abstract: 1375947 Monitoring vapour pressure LEYBOLD-HERAEUS-VERWALTUNG GmbH 1 Feb 1972 [1 Feb 1971] 4769/72 Heading G1A In an apparatus for control monitoring of freeze drying processes as a function of vapour pressure a light source 1, connected to a modulated current source 9 and a detector 2 are located above the surface of a concave mirror 3 which is in contact with the vapour and equipped with a heater 4 within a probe 7 in contact with a cooling bath 8, the temperature of the mirror being maintained in the region of incipient condensation so that the intensity of the light reflected from the mirror may be used to control the process. The temperature of the mirror 3 is monitored by a sensor 5 connected to an indicator device 6 which provides an electric signal such as may be readily used for a controller. The current generated by the light detector 2 is amplified and rectified in an A.C. amplifier 10 and fed to a comparator 12 which is also connected to a reference signal generator 11, the output of the comparator 12 being fed to a heating regulator 13 which is connected to the heater. The apparatus may be operated in two ways. In the first the mirror is kept at a constant temperature so that for a given reflectivity, there is a given vapour pressure so that if the detector's output is used to control the vapour pressure in the chamber in which the mirror is mounted there is obtained a closed loop signal with its controlling signal; in the second, the vapour pressure in the chamber changes as a function of time and the controller is connected to a programmer which changes the value of the vapour pressure with time and the system follows this assigned value by changing the temperature of the mirror and following with the vapour pressure in order to maintain a certain reflectivity. A fluorescent light and a receiver sensitive to the fluorescent light wavelengths may be employed.
Patent GB-456968-A (GB)
Title: Improvements in the production of line gratings such as for relief or colour photography
IPC: G03C7/10
Filed: 1935-02-14
Abstract: 456,968. Printing-surfaces. THERIAT, J., 41, Rue Billaut, La Courneuve, Seine, France. Feb. 14, 1935, Nos. 4794 and 4795. Convention dates, Feb. 14, 1934 and Jan. 8, 1935. [Class 100 (ii)] Gratings for use in relief or colour photography are prepared by printing on a transparent support with a printing block consisting of a number of blades piled against one another, alternate blades projecting beyond the intermediate blades and having their surfaces planed to a common level. Ink or colour may be applied to the raised edges or to the grooves between them. Fig. 5 shows a portion of a block for use in printing multicolour gratings and Figs. 1 and 2 separate blades thereof. A number of rectangular blades 1 are piled together with intermediate blades 2, 3, 4 having recesses 5<1>, 6<1>, 7<1> in their upper edges. All the blades are provided with registering holes 5, 6, 7, Figs. 1 and 2, forming passages for the supply of inks of different colours the holes 5 of the blades 2 communicating with the recesses 5<1> by slots 5a, the holes 6 of the blades 3, with the recesses 6<1> by slots 6<a> and the holes 7 of the blades 4 with the recesses 7<1> by slots 7a. A transparent sheet, e.g. of aceto-cellulose, is pressed against the block and receives bands of different colours separated by non-printed bands of the same width. By moving the block laterally of the bands to the extent of one blade width and applying three different colours, the sheet may be printed with different colours on the previously not printed bands and a grating of six different colours thereby produced. Instead of a flat block circular blades may be piled on a mandrel to form a roller.
Patent GB-1133837-A (GB)
Title: Flooded nip coater
IPC: B05C11/04
Filed: 1966-02-03
Abstract: 1,133,837. Web coating apparatus. BELOIT CORP. 3 Feb., 1966 [12 March, 1965], No. 4823/66. Heading D1L. Pressure loading means for loading a doctor blade 15 associated with a back-up roll 11 about which a web W to be coated is trained. comprises at least one support arm 17, a doctor-back 16 transversely pivoted at 19 to the arm 17 and which carries the blade 15, and means for maintaining a predetermined pressure between the doctor blade and the web, which means comprises independent oppositelyacting loading devices between the support arm 17 and the doctor back 16 operable to exert opposite rotating forces on the doctor back. In the arrangement shown the loading devices comprise fluid actuated diaphragms 82 and 83 acting in one direction and a similar diaphragm 85 acting in the opposite direction. Said diaphragms act on pressure pads 86, 87 attached to the arm 17. The angular position of arm 17 is adjustable relative to frame member 20 by means of a turn buckle 76 to change the angle of the blade 15, which angle may be varied between 40‹ and 60‹ as indicated. The frame 20 is supported on foot 22 and is pivoted thereon at 25 and can be moved by cylinder/piston 61, 62 into the operative position (shown), a threading position (Fig. 2; not shown) and a cleaning position (Fig. 3, not shown). The doctoring means is shown associated with coating apparatus consisting of an applicator roll 12 which may be driven in the same or opposite direction as the web W and rotates in a coating bath 13. The roll 12 is supported by bell crank levers 31 journalled at 32 and having bearing pads 35 engaged by fluid operated diaphragms 36 so as to move the roll to the operative position of Fig. 1 from a threading-up position (Fig. 2, not shown). Adjustable stop means 41-43 is provided for locating the applicator roll in the operative position so that the thickness of the coating applied can be adjusted. The coating bath pan 13 engages with end dams 45, mounted on bearing supports 29, and is in sealing engagement with said dams in the operative and threading-up positions. For cleaning, the pan 13 can be swung away from roll 12 by cylinder/piston 55, 53 to the Fig. 3 (not shown) position.
Patent GB-249651-A (GB)
Title: Improvements in or relating to motor wagons and the like
IPC: B60G17/02
Filed: 1925-02-21
Abstract: 249,651. Deighton's Patent Flue & Tube Co., Ltd., and Jones, T. A. Feb. 21, 1925. Springs, mounting undercarriages on.-Relates to motor vehicles having chain-drive rear wheels, the axle of which supports the frame by means of laminated springs having their ends slidably and adjustably mounted on the frame. One end of each spring 6 is connected to a bracket 7 which is adapted to slide longitudinally on a. bracket 8 fixed to the frame 5 and is provided with adjusting and locking means, the other end of the spring being free to move longitudinally on the frame. The bracket 7 is formed with a lug 9 carrying a fixed screw 10 which passes through a lug 11 on the fixed bracket 8 and carries adjusting and locking nuts 12. The ether end of the spring is pivoted to a bracket 13 sliding on a fixed bracket 14.
Patent GB-748940-A (GB)
Title: Improvements relating to the production of resorcinol
Inventor: JACOBS DAVID IAN HUTCHINSON
IPC: C07C39/08
Filed: 1953-02-21
Abstract: A process for the production of resorcinol comprises catalytically decomposing in the substantially anhydrous liquid phase m-di-isopropylbenzene dihydroperoxide in solution in a liquid aromatic hydrocarbon or liquid chlorinated aromatic hydrocarbon solvent or mixtures thereof, using a solid catalyst as defined below, separating the catalyst from the reaction mixture, reactivating the separated catalyst by treatment with an aliphatic alcohol of up to 6 carbon atoms, an aliphatic ketone of up to 6 carbon atoms, an ester of such an aliphatic alcohol with an aliphatic carboxylic acid of up to 6 carbon atoms or an ether of up to 8 carbon atoms, and using the reactivated catalyst to decompose further amounts of m-diisopropylbenzene dihydroperoxide.  The solid catalysts employed are acidic surface active clay catalysts known as montmorillonites, bentonites, fuller's earths, vermiculites, attapulgites, kaolinites and illites in their acid-activated and/or heatactivated forms. Among specific solvents mentioned for reactivation of the catalyst are methanol, cyclohexanol, acetone, cyclohexanone, butyl acetate, diethyl ether, dioxane and mixtures thereof.  The decomposition of the dihydroperoxide may be carried out batchwise or continuously when the fresh catalyst may be supplied in admixture with solvent counter-currently to the dihydroperoxide. Al ternatively the reaction solvent, catalyst and dihydroperoxide may be passed through a reactor concurrently.  The reactivation may be carried out by washing or heating under reflux the catalyst with the reactivating agent.  In examples resorcinol is obtained by decomposing under reflux m-diisopropylbenzene dihydroperoxide in the presence of benzene and acid-activated fuller's earth, the catalyst being reactivated by heating under reflux with acetone (1-3); in a similar process ether and ethanol are employed to reactivate the catalyst and chloroform is shown to be ineffective (4); in a process similar to (2) the decomposition of the dihydroperoxide is carried out in toluene (5); in a process similar to (1) a fuller's earth activated by heat-treatment is employed as catalyst and reactivated by refluxing with acetone (6) and an attapulgite is employed as catalyst in processes similar to (6), (7) and (8).  Specification 676,771 is referred to.
Patent GB-562730-A (GB)
Title: Improvements in or relating to garments for personal wear
IPC: A41D1/04
Filed: 1943-03-27
Abstract: 562,730. Wearing-apparel. GOLDSON, E. March 27, 1943, No. 4976. [Class 141] A garment, particularly for ladies, which can be worn closed as a blouse, or open as a coatee, is provided with a belt d having loose end flaps d<1>, d2. Male members of snap fasteners g, h, and j are secured to the inside of the flaps d<1>, d<2> and the front, a<1> of the 'garment respectively, and female members g<1>, h<1>, j<1> to the outside of the front a<1> and the outside of the front a<2> of the garment respectively, while a buttonhole e is formed in the flap d<1> adapted to engage a button f on the outside of the flap d2. 'When the garment is to be worn as a blouse, the fastener j, j<1> is closed, and the flaps d<1>, d<2> buttoned together, the fronts a<1>, a<2> also being buttoned together, but when it is to be worn as a coatee, the fasteners g, g<1>, h, h<1> are closed to anchor the flaps to the fronts a', a<2>, which are left unbuttoned. Hooks and eyes, &c. may be used in place of snap fasteners.
Patent GB-309673-A (GB)
Title: Improvements in and relating to bodies for baby carriages
IPC: B62B9/14
Filed: 1928-02-17
Abstract: 309,673. Wilson, J. W. Feb. 17, 1928. Hoods and weather screens. - Baby carriages are provided with upwardly extending ends connected together by a hood and one or both of the sides between the upwardly extending ends is or are fitted with sliding or folding weather screens. As slown, the baby carriage 1 is provided with ends 2 between which a hood 3 which is foldable or may be rolled up as shown. Side frames 5 are provided with windows 6 which may be slidably and are constructed of transparent flexible material. The hood may comprise a flexible cover carried by foldable rigid frames or may be carried by linkwork. In another form the weather screens may be hinged to a hinged rigid top and adapted to be folded therewith. As shown in Fig. 6, the side frame 5 is cut away to allow one of the end pieces 2 to be folded down to serve as an apron.
Patent GB-1025321-A (GB)
Title: Improvements in or relating to tyre building machinery
Inventor: BARBER RONALD JESSE
IPC: B29D30/30
Filed: 1962-02-09
Abstract: 1,025,321. Feeding webs. DUNLOP RUBBER CO. Ltd. Jan. 25, 1963 [Feb. 9, 1962], No. 4992/62. Heading B6B. [Also in Division B7] A device for guiding a length of tyre ply in a desired direction comprises a support 10 flanked by a pair of endless flexible guide members 16, whose inner flights (17) engage the ply and extend in the direction of desired movement of the ply (Fig. 1, not shown). Fig. 4 shows how two mounting plates 4, 5 each carry a rubber belt 16, on pulleys 15, backed by a rigid member 18, and a platform 11 or 12 which together form the support 10. Fig. 1 illustrates plates 4, 5 attached to pins (6) which slide in slots (8) in a base plate (2) and are attached beneath plate (2) to a rack and pinion system (Fig. 2, not shown) whereby the plates 4, 5 can be symmetrically moved relative to the longitudinal axis of support 10. Thus guide members 16 can be separated and support 10 widened to accommodate plies of various widths, movement being controlled by a lever (25) adjustable to a series of positions by a spigot (32) engaging holes (33). The device may be used to feed breaker strips on to a tyre carcass (Fig. 5, not shown) and the width of the support 10 is adjusted while the centre line of support 10 still coincides with the mid-circumferential plane of the carcass.
Patent GB-1149937-A (GB)
Title: A trichloromethanesulphenyl-n-anilide derivative
Inventor: FROHBERGER PAUL-ERNST
IPC: A01N47/04
Filed: 1968-01-31
Abstract: 1,149,937. A trichloromethanesulphenyl-N- anilide derivative. FARBENFABRIKEN BAYER A.G. 31 Jan., 1968 [2 March, 1967], No. 5016/68. Heading C2C. [Also in Division A5] The invention comprises N-trichloromethanesulphenyl - N - trifluoromethyl - 2 - methyl- 5-nitroaniline of formula It may be prepared by reacting N-trifluoromethyl - 2 - methyl - 5 - nitroaniline with perchloromethylmercaptan of formula ClSCCl 3  in the presence of a tertiary amine and optionally in the presence of an inert solvent. Suitable tertiary amines are, for example, trimethylamine, triethylamine, dimethylaniline, diethylaniline and pyridine. Suitable solvents are, for example, benzine, toluene, benzene, diethyl ether, dioxan and ketones.