baber/WOPTO huggingface dataset:
Patent GB-859949-A (GB)
Title: Improvements in or relating to mineral mining machines
Inventor: ANDERSON JAMES
IPC: E21C29/00
Filed: 1956-10-31
Abstract: 859,949. Fluid-pressure servomotor-control systems; hydraulic transmission of power. ANDERSON, BOYES & CO. Ltd. Dec. 12, 1957 [Oct. 31, 1956], No. 33209/56. Classes 69 (2) and 135. Auxiliary hydraulic mechanism in a mineral mining machine operating, e.g., the haulage gear and/or the cutter jib of the machine, comprises an hydraulic motor, Fig. 1, supplied with working liquid by first and second pumps 2, 3 of constant and variable output respectively and an overload valve assembly 4 connected between the pumps and motor which on a first predetermined overload of the motor unloads the first pump and on a second predetermined overload of the motor operates hydraulic means to either unload the second pump or regulate its output. The pumps 2, 3, driven by the main or one of the main motors of the machine, deliver pressure liquid through lines 31, 32, and in the case of the pump 2, a check-valve 24, to a manuallyoperable forward-and-reverse motor control valve 7. On a first predetermined overload of the motor 1 a spring-loaded valve 27 is unseated to cause leftward movement of a spring-loaded piston valve 25 to by-pass working liquid from the line 31 to a line 33. On a second predetermined overload of the motor 1 a spring-loaded valve 28 is unseated to direct working liquid through a check-valve 30 to act on the end of a spring-loaded piston valve 21 to connect the left-hand end of a pressure-cylinder 15 through lines 18, 19 with the valve assembly 4. A piston 16 slidable in the cylinder adjusts a fulcrum 13 acting on the lever 12 to regulate the pump output. Bleed ports 27a, 34, 35 allow the valves 27, 21 and the piston 16 to return to their initial positions after the pumps are unloaded. The output of the pump 3 may be regulated or adjusted by a manual adjuster 14. In a modification, the piston valve 21 and the piston and cylinder 16, 15 are omitted. Pressure-liquid after passing through the check-valve 30 is directed to act on twin opposed pistons 39, 40, Fig. 2, urged apart by springs and engageable selectively with a finger 42 on the control-rod 43 of a forward-and-reverse control valve 7a to unload the second pump. Specification 739,065 is referred to.
Patent GB-1005762-A (GB)
Title: Printing and dyeing of aromatic polyester fibrous materials
IPC: D06P1/20
Filed: 1964-08-14
Abstract: Anthraquinone dyes of the formula <FORM:1005762/C4-C5/1> wherein R is a salicylic acid radical which may be substituted by halogen, alkyl or alkoxy and which may also contain a condensed phenyl nucleus, and X and Y represent H or halogen are employed to dye aromatic polyester fibres and may be prepared by condensing 1-amino-anthraquinone with appropriate substituted salicylic acids or their functional derivatives. A number of dyes are specified.ALSO:Aromatic Polyester fibres are dyed or printed by the thermofixing method by using dye of the formula <FORM:1005762/D1-D2/1> wherein R is a salicylic acid radical possibly substituted by halogen, alkyl or alkoxy and which may also contain a condensed phenyl nucleus, and X and Y represent hydrogen or halogen. Examples of dyeing and printing are given.
Patent GB-800919-A (GB)
Title: Improvements in or relating to oxide-coated cathodes for thermionic tubes
IPC: H01J1/142
Filed: 1955-11-21
Abstract: 800,919. Cathode materials. SOC. FRANCAISE RADIO-ELECTRIQUE. Nov. 21, 1955 [Nov. 22, 1954], No. 33273/55. Class 39(1). A thermionic cathode coating is a mixture of the three alkaline earth oxides resulting from the conversion of a mixture of the carbonates having molecular proportions within the following limits :- 3 per cent <BaCO 3 < 26 per cent 40 per cent< SrCO 3 < 63 per cent 18 per cent<CaCO 3 < 33 per cent This is represented by the vertically hatched area S. A number of specific examples are given. The oxides may be derived from salts other than carbonates. Specification 684,059 is referred to.
Patent GB-747976-A (GB)
Title: Dual purpose warning stick to aid blind and deaf persons to negotiate traffic
IPC: A45B3/04
Filed: 1953-12-01
Abstract: 747,976. Walking sticks. MILLER, Z. J. Dec. 1, 1953, No. 33292/53. Drawings to Specification. Class 134. [Also in Group XI] A white warning stick for blind and deaf persons contains a red globe lit up by a battery lamp as a danger signal, and a buzzer which vibrates, if the lamp fails, so that it can be both heard and felt.
Patent GB-639887-A (GB)
Title: Process for the preparation of urethane derivatives of the lysergic acid ring system
Filed: 1947-12-17
Abstract: Urethanes of the general formula RNHCOOR1, where R is the radical C15H16N2 derived from lysergic or isolysergic acid C15H16N2COOH by removal of the carboxyl groups and R1 denotes alkyl, are prepared by converting lysergic or isolysergic acid azides into the corresponding isocyanates by methods known for the conversion of acid azides into isocyanates such as by warming in a solvent, e.g. benzene, and treating the isocyanate with an alcohol.  The reaction may be carried out in one step by adding the azide of lysergic or isolysergic acid to the boiling alcohol.  In examples, there are prepared by the processes of the invention the methyl, ethyl, propyl and butyl esters of (6-methyl - ergolenyl - 8)- and (6 - methyl - isoergolenyl-8)-carbamic acid.  Lysergic acid azide and isolysergic acid azide are prepared by treating the corresponding hydrazides with sodium nitrite and dilute hydrochloric acid.
Patent GB-407783-A (GB)
Title: Method of and means for controlling temperature in furnaces
IPC: G05D23/22
Filed: 1932-11-25
Abstract: 407,783. Furnace temperature control. MOSS, E. W., 75, Victoria Street, London.- (Pittsburgh Research Corporation ; 32nd Street, Pittsburg, U.S.A.) Nov. 25, 1932, No. 33396. [Class 51 (ii).] The heat input to a furnace is so regulated that the temperature difference between two separate points of a charge, e.g. between the middle and the edges of a pack of metal sheets to be annealed, approaches but does not exceed a predetermined amount. The regulation may be effected manually according to the indications of two pyrometers, but is preferably effected automatically. In one arrangement, two thermo-couples 32, 33 are connected in opposition, and in series with the moving coil of a galvanometer 28. The heating current for the furnace is supplied from mains 8 under control of an automatic switch 6, the solenoid 9 of which is energized from the mains through the automatic switch 11. The solenoid 19 of this switch is energized when the contacts 20, 21 are bridged by the galvanometer needle 27, and a maintaining circuit is completed by the switch arm 24. When the temperature difference between the thermo-couples exceeds the predetermined amount the needle 27 bridges the contacts 15, 16 to short circuit the solenoid 19 and to open the switches 11, 6. In a modification the two thermo-couples are connected separately to two moving coils on a common shaft. In heating packs of metal sheets a greater temperature difference is permissible during the early stages of heating than during the later stages, and in a modified form of the invention a varying potential is applied to the moving coil independently of the thermo-couples by means of a battery and potentiometer. This control may be effected manually, but preferably a third thermo-couple exposed to the furnace temperature is arranged to cut out sections of the potentiometer resistance as the temperature rises. In a further modification in which a thermionic valve amplifier is interposed between the thermo-couples 32, 33 and the moving coil of the galvanometer 28, a third thermo-couple acting through a second galvanometer is arranged to break the heating circuit when the furnace temperature exceeds a predetermined value.
Patent GB-194762-A (GB)
Title: Improvements in door-mats
IPC: A47L23/24
Filed: 1921-12-12
Abstract: 194,762. Gillanders, H., and Darling- ton, H. P. Dec. 12, 1921. Mats.-A mat is formed of long and short strips of leather, the end portions of the mat being formed of alternating long and short strips 1, 2, while the central portion is formed wholly of long strips. Tie-rods 3 &c. riveted over washers 5 secure the strips. At one end short strips are upon the outside, and at the other end long ones.
Patent GB-628754-A (GB)
Title: Improvements in or relating to methods of sizing or finishing textile materials, fabrics or yarns, and the finishing composition therefor
IPC: D06M15/233
Filed: 1946-11-11
Abstract: A solution or dispersion for stiffening textiles is made from an aqueous solution of formaldehyde or a water-soluble source of formaldehyde which yields formaldehyde on heating and an ammonium or amine salt of a copolymer of styrene or a substituted styrene with maleic anhydride or a partial ester of maleic acid, the formaldehyde or source thereof being 1-20 per cent of the copolymer salt.  The salt is deposited on the textile in an amount from 2-15 per cent by weight, the treated textile then being heated to form an insoluble resin thereon.  The copolymer salts include those of guanidine, methyl-, butyl- and amylamines and phenyl trimethyl ammonium hydroxide.  As sources of formaldehyde paraformaldehyde and trioxane; as substituted styrenes, methyl-, butyl-, and chloro-styrenes; and as a partial maleic ester, mono isopropyl maleate are specified.  Minor amounts of vinyl acetate, vinyl chloride, vinyl ethyl ether, indene, vinyl methyl ketone and acrylic esters may be copolymerized in the styrene copolymer.  The process may be carried out on fibres, yarn or fabrics of cotton, viscose rayon, acetate rayon, nylon, glass, linen, flax, hemp, jute, ramie, wool, silk, cuprammonium rayon, vinyl chloride-vinyl acetate copolymer and the substance known as Aralac. Specification 431,704 is referred to.ALSO:Textile materials are stiffened by treating with an aqueous solution or dispersion of formaldehyde or a water-soluble source of formaldehyde and an ammonium or amine salt of a copolymer of styrene or a substituted styrene with maleic anhydride or a mono ester of maleic acid, the formaldehyde or source thereof being 1-20 per cent of the copolymer salt and 2-15 per cent of the salt being deposited on the textile, which is then heated to give an insoluble resin.  The process may be carried out on fibres, yarns or fabrics of cotton, viscose or acetate rayon, nylon, glass, linen, flax, hemp, jute, ramie, wool, silk, cuprammonium rayon, vinyl chloride-acetate copolymer and the substance known as Aralac.  Specification 431,704 is referred to.
Patent GB-194410-A (GB)
Title: Improvements in screwdrivers or turnscrews
IPC: B25G1/04
Filed: 1921-12-13
Abstract: 194,410. Towl, L. Dec. 13, 1921. Screwdrivers. - A screwdriver is provided with a rotary abutment for the palm of the hand and an annular disc concentrically surrounding the body of the tool the periphery of the disc being adapted to be gripped by the finger and thumb of the same hand. A knob B, Fig. 1, is rotatably connected to a sleeve A, terminating in a screwdriver blade I, by means of a pin C carrying a collar D bearing against an inner sleeve E. A milled disc F surrounding the sleeve A is slidable thereon and is fixed in an adjusted position by a screw G engaging a slot H. Rigid-jaw wrenches; handles.-As applied to a spanner, Fig. 2, the solid stem A is reduced to receive the knob B and is provided with a square end J to engage a socket L of known construction. The knob B may also carry a setscrew engaging a peripheral groove in the rod A. In large tools constructed according to the invention one hand may be used for applying pressure and the other for turning.
Patent GB-1159782-A (GB)
Title: Improvements in or relating to Installation for the Continuous Casting of Steel.
Inventor: KONDRATJEV EDUARD FRANTSEVITCH
IPC: G05D9/12
Filed: 1966-07-26
Abstract: 1,159,782. Photo-electric level sensing. CENTRALNY NAUCHNO-ISSLEDOVATELSKI INSTITUT TCHORNOY METALLURGIY I. P. BARDINE and GOSUDARSTVENNY SOJUZNY INSTITUT PROJEKTIROVANIJA METALLURGITCHESKIKH ZAVODOV. July 26, 2966, No. 33475/66. Heading G1A. [Also in Division G3] In a continuous casting plant, level of metal in a mould is measured by its effect on radiation passing through the channel of the mould from a radio-active source to a detector the output of which is supplied through a pulse divider. In Fig. 1, metal flows from a casting vessel 3 into an ingot mould 1 from which the casting is withdrawn by an extracting cage driven by a motor 5. Changes in level in mould 1 are detected by Geiger counter tubes 7 influenced by low intensity gamma radiation from sources 6. The output of tubes 7, which is converted to D.C. at 8, operates an indicator 10 and also (see Division G3) corrects the level in the mould by controlling, through an electric device 9, both the speed of motor 5 withdrawing the casting and the position of a mechanism 4 adjusting a stopper 2 relative to the outlet of the casting vessel 3. The radiation source comprises a plurality of transmitters at equal distances in a long thin brass tube inserted in the copper wall of the mould. A plurality of counter tubes having their outputs connected in parallel are located in a cavity in the opposite wall of the mould. The pulses from the counter tubes are amplified, divided, shaped and integrated by valve circuits, shown in detail, which provide a linear D.C. output for indication and control. The indicator is in the form of an endless band with both actual and desired value pointers driven by servomotors operating follow-up potentiometers.
Patent GB-782966-A (GB)
Title: Telephone handset with extensions for providing privacy to the user
IPC: H04M1/19
Filed: 1955-11-23
Abstract: 782,966. Mouthpieces. PAPALIA, M. Nov. 23, 1955 [Dec. 21, 1954], No. 33623/55. Class 40(4). A telephone handset is provided with extensions 2, 3 fitting on to the receiver and transmitter, respectively, such that they fit closely over the ear and mouth, respectively, of the user during use of the handset.
Patent GB-1019259-A (GB)
Title: Improvements in or relating to microbiological fermentations
IPC: C12P23/00
Filed: 1964-08-18
Abstract: In a process for the recovery of b -carotene from a microbiological fermentation beer containing a minimum of 400 mg. of caratenoid per litre of which at least 70% is b -carotene, the mycelial cells are separated from the beer, the separated cells are dried with an alcohol and extracted with a solvent for b -carotene, the solvent extract is concentrated and b -carotene is crystallized from the concentrated extract.  The cells may be dried with methanol, ethanol, n-propanol, iso-propanol, or t.-butyl alcohol, and extracted with methylene chloride, ethylene dichloride, chloroform, carbon tetrachloride, chlorobenzene, cyclohexane benzene or toluene. The b -carotene may be crystallized by evaporating the concentrated extract or by cooling or by adding a precipitating solvent, e.g. methanol, ethanol, isopropanol, acetone or ethyl acetate. Examples are given.
Patent GB-930498-A (GB)
Title: Internal combustion engines of the liquid fuel injection compression ignition type
Inventor: SUTTON DOUGLAS LESLIE
IPC: F02B3/00
Filed: 1959-10-06
Abstract: 930,498. Combustion chambers. ROVER CO. Ltd. Dec. 28, 1960 [Oct. 6, 1959], No. 33772/59. Class 7(3). A combustion chamber 7 has a throat 10 discharging into a Veeshaped recess 11 in the piston, the limbs 12 of the recess leading the gases into combustion pockets 4 beneath the inlet and exhaust valves. The recess 11 may be of constant depth or may slope upwardly towards the pockets 4 and the limbs 12 may discharge tangentially into the pockets 4 or may be directed towards the centres thereof. The limbs 12 may widen towards the pockets 4.
Patent GB-172859-A (GB)
Title: An improved tell-tale or indicator for ignition systems of internal combustion engines and the like
IPC: F02P17/12
Filed: 1920-12-01
Abstract: 172,859. Kardoc, H. G., and Elliott, H. Dec. 1, 1920. Testing and indicating. -A testing and indicating device consists of aligned conductors d, j separated by a spark gap and enclosed within a transparent tube c and perforated fibre tube a. A plate g connected by riveting to the conductor d is mounted at its free end on the sparking-plug terminal; it also retains a leaf spring r the ends s of which may be brought into contact with the plug body, either by pressing the stud u or swinging the spring about its pivot f.
Patent GB-770229-A (GB)
Title: A process and apparatus for the rapid determination of micro-organisms in filtered beers, malt liquor and the like
IPC: C12M1/34
Filed: 1954-11-24
Abstract: 770,229. Filters. FILTROX-WERK AKT.- GES. Nov. 24, 1954 [Dec. 1, 1953], No. 34022/54. Class '46. [Also in Groups VI and XVIII] The micro-organism, content of filtered beers, &c., is rapidly determined by diverting a measured quantity of the filtrate through an organism-proof membrane filter disc, removing the organisms retained on the disc and counting them microscopically. As shown, a portion of filtrate flowing in the pipe 1 is diverted through cock 3a and pipe 2 to the membrane 12 housed within screwed parts 6, 7 which keep the disc taut. The organism-free liquid is removed through the perforated flow 11, pipe 10 and T-piece 19. After sufficient liquid has been passed, cock 3a is closed and cock 3b opened, thus causing filtrate to flow through the pipe 18 to the nozzle 17 ; a partial vacuum is produced in pipes 2, 10 due to the ejector effect. On opening the air breathing screw 16, the residual liquid is removed. Cock 3b is then closed, the screw connections 5b, 5d loosened and the whole apparatus 5b-10 lifted off. In an alternative procedure the apparatus 5b-10 is disconnected and the residual liquid removed by vacuum. The filter disc 12 is then escaped by unscrewing parts 6, 7, the sediment is scraped from the disc onto a microscope slide and the cells counted. The cocks 3a, 3b may be replaced by a single three-way cock ; a flow-meter may be incorporated in the pipe 2.
Patent GB-426615-A (GB)
Title: Improvements in tuning indicators for wireless or like signal receivers
IPC: H03J1/04
Filed: 1934-11-29
Abstract: 426,615. Current meters. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, TURNER, H. C., and SHERWIN, A., c/o Salford Electrical Instruments, Ltd., Peel Works, Silk Street, Salford. Nov. 29, 1934, No. 34323. [Class 37] In a tuning indicator for wireless receivers of the kind comprising a source of light 4, a pivoted vane 7 interposed between the source 4 and a screen 3, and an operating coil 16 associated with the vane in such a manner that variation of the current in the coil effects movement of the vane and thereby varies the width of the shadow of the vane on the screen to give indication of the current strength, the pivots 6, 9 of the vane are mounted in recesses 8, 10 in a single bent plate 5. The spacing of the recesses can be adjusted by means of a screw 11. A bent-up portion 15 of the plate 5 forms a bracket on which the coil 16, with its core and polepieces 18, is mounted, the polepieces co-operating with a magnetic member 14 carried by the vane. A permanent magnet 19, secured to the plate 5 by bent-up portions 20, is arranged with its poles adjacent the magnetic member 14, so as to tend to move the vane in the opposite direction to that in which the flux produced by the coil 16 tends to move it. The anode current of a grid leak detector valve may be passed through the coil 16, the receiver being tuned until the width of the shadow on the screen 3 is a minimum.
Patent GB-1026930-A (GB)
Title: Dibenzo-cycloheptadiene ketoxime-o ethers
IPC: C07C/
Filed: 1964-08-21
Abstract: The invention comprises O-(b -diethylamino-ethyl) - 5 - oximino - 10,11,dihydro-5H -dibenzo-[a,d]cycloheptadiene(1,4), O-(b -dimethylamino-ethyl) - 5 - oximino - 3 - chloro - 10,11 - dihydro-5H - dibenzo[a,d]cycloheptadiene(1,4) and O-(b  - dimethylaminoethyl) - 5 - oximino - 10,11-dihydro - 5H - dibenzo[a,d]cycloheptadiene(1,4), and a process for the preparation of compounds of the formula <FORM:1026930/C2/1> wherein X is a hydrogen, chlorine or bromine atom and R is a methyl or ethyl group, by reacting a ketoxime of the formula <FORM:1026930/C2/2> with N-(b -chlorethyl)diethylamine or N-(b -chlorethyl)dimethylamine in the presence of sodium ethylate. Ketoximes of the Formula II are prepared by reacting the corresponding ketone with hydroxylamine.
Patent GB-393973-A (GB)
Title: Composite sheet material particularly for the production of templates or the like
IPC: G03C1/775
Filed: 1931-12-11
Abstract: 393,973. Photographic printing- materials. GRAF, M., 64, Urbanstrasse, Berlin. Dec. 11, 1931, No. 34363. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 12, 1932.] [Class 98 (ii).] A composite sheet for the production of templets comprises a metal foil foundation. a light-sensitive printing-paper applied to one side of the foil. and a paper backing applied to the reverse side of the foil. As shown in Fig. 1 the layer a-b is of aluminium, to one side of which is applied a light-sensitive paper c, on which a print from a drawing or tracing cloth can be made, and to the other side of which is applied a sheet d of ordinary drawing paper on which a drawing of the desired templet can be directly made. The aluminium foil may comprise sections a, b, Fig. 2, joined at the edges along an undulating line f. The paper sheets may be secured to the aluminium foil by adhesive, or the sheet d may be applied in liquid condition.
Patent GB-770169-A (GB)
Title: Adjustable reclining chairs or like articles of furniture
IPC: A47C1/032
Filed: 1953-12-11
Abstract: 770,169. Adjustable chairs. LORENZ, A. Dec. 11, 1953 [Oct. 14, 1953], No. 34572/53. Class 52 (2). In an adjustable reclining chair the rear of the seat 30 is pivoted at 32 to the back-rest 26 above the pivot point 28 connecting the back-rest to the support 22 and the ends of a guiding link 38 are pivoted to the seat and support respectively so that the seat front rises and the rear is lowered as the back-rest moves rearwardly. A spring 44 biases the parts towards normal sitting position or a leg-rest may be pivoted to the seat front and coupled to the guiding link so that its weight serves to bias the parts. Means may be provided to hold the parts in adjusted position.