baber/WOPTO huggingface dataset:
Patent GB-1044256-A (GB)
Title: Improvements in hydraulic radial cylinder motors
Inventor: KOHLER HELMUT
IPC: F03C1/08
Filed: 1964-02-21
Abstract: 1,044,256. Radial cylinder motors. VEB INDUSTRIEWERKE KARL-MARX-STADT. Feb. 21, 1964, No. 7262/64. Heading F1A. In an hydraulic radial cylinder motor having a plurality of cylinders 2 mounted for oscillation in bearings 5, the supply of liquid from a pump via an annular chamber 19 and the exhaust to a sump via annular chamber 28 for each cylinder is controlled by cam actuated inlet and exhaust valves 9 and 10, respectively. The valves are interconnected by a tie rod 11 and biased against collars on the rod by a spring 13. The tie rod is screwed into a tappet 12 and urged against cam 18 by spring 16. The valve overlap may be varied by adjusting one of the collars on the tie rod 11 and the valve timing may be varied by screwing the tie rod more or less into the tappet 12.
Patent GB-1029154-A (GB)
Title: í¡í¡od of manufacturing articles by crystallizing glass materials
IPC: C04B35/18
Filed: 1963-02-22
Abstract: A glass of the following composition is heat treated at a temperature of from 900-1000 DEG  C. to crystallize the glass, the composition in percentage by weight comprising as to at least 90%, SiO2, 40-70, Al2O3 5-12, CaO and/or MgO 20-38, Na2O 3-8, F 0-2 with 1-5% of ZnS, either as ZnS or ZnO+S, as nucleating agent and up to 3% of reducing agent and colouring agents if required.  Blast furnace slag is used as part of the main starting material.
Patent GB-1490939-A (GB)
Title: Seals
IPC: F16J15/34
Filed: 1976-02-25
Abstract: 1490939 Shaft seals GUTEHOFFNUNGSHUTTE STERKRADE AG 25 Feb 1976 [8 March 1975] 7339/76 Heading F2B A shaft seal comprises a ring 1 secured on a shaft 5 and a ring 2 secured resiliently to a housing 7, a gas cushion being provided between the rings (through a pipe 9 to a groove 8) and one of the rings (ring 1 as shown) is of a hardened beryllium-copper alloy containing 1-4% of beryllium and 0À1-0À5% of cobalt and the other ring (ring 2 as shown) is of aluminium with the surface thereof facing the ring 1 being of hard aluminium oxide. The ring 2 is connected to the housing 7 by a gas-tight bellows 6. The materials used reduce wear if the rings come into contact and the beryllium-copper alloy conducts frictional heat away. The materials used are also resistant to H 2 UF 6  so that the seal may be used in nuclear technology.
Patent GB-471762-A (GB)
Title: Improvements in and relating to receivers for radio telephony and television
IPC: H04N5/50
Filed: 1936-03-11
Abstract: 471,762. Wireless receiving - apparatus. MURPHY RADIO, Ltd., DAVIES, K. S., and HAWKINS, G. F. March 11, 1936, Nos. 7350 and 35176. [Class 40 (v)] In a superheterodyne receiver for telephony and television, using a common local oscillator, the sum or difference of the frequencies to which the intermediate frequency amplifiers are timed is arranged to differ from the difference between the signal frequencies by half the band-width of the television intermediate frequency circuits. The intermediate frequency for telephony may be one half or one quarter of the band - width of the television frequency circuits. In an example with telephony and television signals of 41À5 and 45 megacycles respectively, the local oscillation may be either 40À75 or 42À25 megacycles and the telephony and television intermediate frequencies À75 and either 4À25 or 2À75 megacycles respectively. With these frequencies and with the television intermediate amplifier tuned to include the band 2À75-5À75 megacycles, one oscillator tuning gives single side-band reception and the other oscillator tuning double side-band reception. Suppression means to render the television channel inoperative except when telephony is received as shown in the Figure. The telephony intermediate frequency amplifier 7 feeds a double-diode triode valve 8 and the voltage across the diode load resistance 9, 10 is applied to the grid of the triode portion of the valve. The anode of the valve 8 is coupled through a neon lamp 14 to the screen grid of a valve 15 in the television amplifier so that this valve is inoperative until a signal is applied to the valve 8. The valve 8 also gives noise suppression in the telephony channel by controlling the bias applied to the amplifier 18. Specification 458,798 is referred to.
Patent GB-1071053-A (GB)
Title: Improvements in or relating to the treatment of animal and human hair
Inventor: FELL ERIC TOM
IPC: D06M11/50
Filed: 1963-02-25
Abstract: The properties of animal or human hair are modified by applying thereto an aqueous solution of permono-sulphuric acid or a salt or salts thereof having a pH value of less than 8 in aqueous solution and then, if desired after washing with water or water containing an alkali, treating them with an aqueous solution of hydrogen peroxide having a pH value of 6.5-10.5.  The aqueous solution containing the permono-sulphuric acid or salt thereof may also contain a surface active agent and may be used at a temperature ranging from room temperature to 100 DEG C.  The hydrogen peroxide which may be used at a temperature of from room temperature to 60 DEG C may be a 0.5-10 volume solution containing an alkali metal carbonate, bicarbonate or phosphate.  The hydrogen peroxide my be generated in situ from an oxide or peroxide, e.g. sodium peroxide, which in aqueous or aqueous acid solution gives rise to hydrogen peroxide.  The fibres may be rinsed to remove excess hydrogen peroxide.  Wool fibres may be shrink-proofed by the process.  The treated fibres also possess a reactivity towards reactive dyestuffs which may be applied at or above room temperature.  Suitable reactive dyestuffs are those possessing a water solubilising group, e.g. carboxylic or sulphonic acid group or a salt thereof with an alkali metal, ammonia or an amine, and a mono- or dichlorosym-triazinyl, trichloro pyrimidyl, b -halogenpropionyl, b -halogeno ethyl sulphonyl, b -halogeno ethyl sulphamyl chloro acetylamino, b -(chloromethyl)-b -sulphato-ethyl sulphamyl, b -sulphato ethyl sulphonyl, b -hydroxy ethyl sulphonyl, b -alkyl-sulphonyloxy alkyl sulphonyl, b -aryl sulphonyloxy alkyl sulphonyl, b -acyl oxyalkyl sulphonyl, acryloxyamine, vinyl sulphonyl, alkylphosphite or sulphofluoride group.  In the case of the symtriazinyl and pyrimidyl groups in place of a reactive halogen atom there may be present a sulphonic acid, thiocyanate, sulphophenoxy, sulphophenylthio, nitrosulphophenoxy, disulphophenoxy, sulphonapthoxy or quaternary ammonium group, a hetero cyclic or fused heterocyclic thiol group having five or six atoms in the heterocyclic ring which are linked through a carbon atom of the heterocycle to the thiol group, a <FORM:1071053/D1-D2/1> group in which R1 and R2 are alkyl, cycloalkyl, aryl or aralkyl groups or together with a nitrogen atom form a heterocyclic ring or a <FORM:1071053/D1-D2/2> group in which R3 and R4 are hydrogen atoms or alkyl, aryl or aralkyl groups. The dyestuffs may be nitro, azo, anthraquinone or phthalocyanine dyestuffs.  The dyestuffs may be applied to the fibres by padding or printing together with an acid acceptor, e.g. soda ash, sodium or potassium carbonate, bicarbonate, silicate or phosphate, levelling agent, organic solvent which is at least moderately soluble in water, electrolyte, e.g. sodium chloride or sulphate, and thickening agents.
Patent GB-549976-A (GB)
Title: Improvements relating to electrical amplifying apparatus
IPC: H01J21/06
Filed: 1941-06-12
Abstract: 549,976. Measuring capacitance. STERLING, Sir L. June 12, 1941, No. 7458. Convention date, Aug. 8, 1940. [A Specification was laid open to inspection under Sect. 91 of the Acts. Dec. 13, 1941.] [Class 37] [Also in Group XL] A frequency-selective amplifier comprises a hexode valve in which the signal is applied to the first grid 12, the second and fourth grids are held at a fixed position potential, and the third grid 13 is earthed through a tuned impedance 20. The Specification as open to inspection under Sect. 91 refers, to an arrangement in which the input frequency is kept constant, and a condenser is connected across the impedance 20, Fig. 1, variations in its capacity being indicated by the voltage at the anode 16. This feature can be used for measuring capacity, or as a burglar alarm or control device. This subject-matter does not appear in the Specification as accepted.
Patent GB-754846-A (GB)
Title: Improvements relating to manually operated control devices for radar and like equipment
Inventor: HUNTER DESMOND
IPC: G01S1/02
Filed: 1954-03-15
Abstract: 754,846. Control of motors. BRITISH THOMSON-HOUSTON CO., Ltd. March 22, 1955 [March 15, 1954], No. 7470/54. Class 38(3) [Also in Group XL(c)] In following a target on radar equipment the position of a strobe is controlled by a handwheel 1 which is coupled to a tachometer generator 2 having a resistor 3 in its output circuit. The voltage developed across this resistor is used to control the speed of a motor connected to the moving member of a potentiometer, the position of which determines the position of the. strobe. The resistor 3 has connected in series with it a variable resistor 4 which is adjusted by means of pedal 6. When the target has a low rate of change of range all the variable resistance is in circuit, and, as the rate of change increases, the amount of resistance is reduced so that a higher signal voltage is developed for the same speed of rotation of the handwheel. In this manner the rate at which the handwheel is operated may be maintained within comparatively close limits regardless of the rate of change of range. The application to other forms of navigational or direction-finding equipment, for example optical apparatus, is referred to in which the variable resistor may be replaced by a speed-change ratio device in a mechanical drive.
Patent GB-249671-A (GB)
Title: Improvements in guards for high speed abrasive wheels and the like
IPC: B24B55/06
Filed: 1925-03-20
Abstract: 249,671. Harper & Co., Ltd., J., and Retallack, C. March 20, 1925. Guards. - A malleable iron or like casing for abra sive and other high-speed wheels liable to burst under centrifugal force, comprises a vertical rear wall rising from a foot A on the bench and continuing as a peri. pheral portion D extending over the top of the wheel C to a point d, an outer side wall F being hinged at a point G to the rear wall and detachably fastened to the portion D by a screw K passing through a lug J. A flange E, extending a certain distance inwards, is preferably provided on the inner side. Ribs forming channels H, M strengthen the hinge G and lug J respectively. The hinged wall F is centrally raised in the form of a cone N merging into a dome L, in order to clear the nuts &c. securing the wheel on its shaft. According to the Provisional Specification, inspection openings may be provided in the hinged wall.
Patent GB-681249-A (GB)
Title: Improvements in or relating to safety guards for power presses
IPC: F16P3/04
Filed: 1949-03-21
Abstract: 681,249. Machinery guards. BLISS (ENGLAND), Ltd., E. W., SMITH, W. J., VALLANCE, A. H. M., and UDAL, J. D. June 20, 1950 [March 21,1949], No. 7607 /49. Class 80 (iv). The starting of a power press by means of a fluid-pressure actuated clutch having an actuating cylinder 34, Fig. 3, controlled by a starting valve 36, which may be actuated electrically under control of a suitable push button, is further controlled by a switch 15, Fig. 2, in the electrical starting circuit and a pilot valve 29 which controls pressure fluid to a cylinder 31 to actuate inlet and exhaust valves 37, 38 to the clutch cylinder 34. The switch 15 and valve 29 are actuated through linkage 18, 17, 13, 12 and 9 from a cam groove 7, 8 on a vertically moving guard 1 so that unless the guard is fully closed the switch 15 is held open and the valve 29 actuated to exhaust the clutch cylinder 34 to prevent operation of the press. When the guard is closed the switch 15 is closed and lever 18 is moved longitudinally to allow a plunger 23 of the valve 29 to move into a hole 40 which conditions the system for starting on operation of the valve 36. The hole 40 in the lever 18 being engaged by the plunger 23 also prevents the guard being opened during the working stroke of the press. In order however to allow the guard to be raised before the press slide actually reaches its top position on the return stroke when it is stopped by the usual limit switch operated from the crankshaft the lever 18 is also controlled by a cam disc 20 on the crankshaft having low and high portions acting on a roller 19 on the lever. When the high portion is acting the lever 18 is raised and the plunger 23 is either raised to prevent actuation of the press or engaged in the hole 40 to prevent raising of the guard. When the roller 19 drops onto the low portion which is arranged to correspond to the return movement of the slide the lever 18 falls to release itself from the plunger 18 and thus allow the guard to be opened although the slide may not be quite at rest. The starting valve 36 may be directly operated by hand and the stopping of the press effected by the actuation of a valve by the cam device. The switch 15 is also replaced by a valve in this case.
Patent GB-198809-A (GB)
Title: Improvements relating to securing fish plates to railway tees
IPC: E01B11/10
Filed: 1922-03-15
Abstract: 198,809. Davis, C. S. March 15, 1922. Rail joints; sleepers, metal, and securing rails thereto.-Rails 16 are secured to sleepers 14 by fishplates 24 engaging the rail and sleeper, the fishplates being secured to the sleeper by means lying wholly beneath the surface of the sleeper. Each fishplate has a series of loops 28 and hooks 29 entering apertures 22, 23 in the sleeper, the loops being secured by split pins 35, and also has a series of pins 32 entering the holes in the rail ends. Where the rails are not perforated, the pins 32 are omitted and the fishplates may engage only the rail flange. The sleepers 14 may be used throughout the track, but at the joints, which are staggered, each sleeper has a widened end 21 or three sleepers of even sizo are placed side by side. The sleepers are of T-section with an opening 34 in the web under each rail seat, the web having secured thereto at each end a thrust member 40 with spaced flanges 42. Specification 6364/00 is referred to.
Patent GB-928878-A (GB)
Title: Improvements relating to thermo-electric cascade arrangements
IPC: H01L35/32
Filed: 1962-02-27
Abstract: 928,878. Thermo-electric devices. LICENTIA PATENT-VERWALTUNGS G.m.b.H. Feb. 27, 1962 [March 28, 1961], No. 7646/62. Class 37. A cascade arrangement using the Peltier effect comprises a plurality of stages in good thermal exchange relationship and each stage except the coldest is electrically divided into two parts; the operating current traverses the first part of all the stages in succession from the hottest to the coldest and the second part of all the stages in succession from the coldest to the hottest, the electrical connections being arranged in each case between a cold junction of the hotter stage and a hot junction of the colder stage. The electrical inter-stage connections and supply connections 6, 7 are provided by flexible conductors 13, such as Litz wires.
Patent GB-904557-A (GB)
Title: Electronic oscillators
Inventor: FIELDEN JOHN ERNEST
IPC: H03B5/08
Filed: 1960-03-04
Abstract: 904,557. Automatic voltage or current control systems. FIELDEN ELECTRONICS Ltd. Feb. 8, 1961 [March 4, 1960], No. 7695/60. Class 38 (4). [Also in Group XL (c)] In an automatic control system for maintaining constant the output voltage or current of an oscillator which comprises a multi-stage amplifier 1, Fig. 1, having an output stage including an oscillatory circuit 4, 5, feedback is controlled through a polarized relay 12 having an operating coil 20 energized from a winding 8 coupled to the inductor 5 of the oscillatory circuit. A load 19 is energized from a coupled winding 7 and the voltage across the load is applied through a rectifier 10 to a capacitor 9. An armature 17 of the relay is normally biased by a spring 18 towards a contact 14 connected to a reference source 13, and when the coil 20 is energized with a predetermined polarity the armature engages a contact 11 connected to the capacitor 9. The pulses applied to the input 2, 3 of the amplifier from the relay have a rate equal to the frequency of the oscillations and an amplitude dependent on the difference between the potential of the source and the potential across the capacitor and a phase such that the oscillating potential is maintained constant. In a modification, Fig. 2, the reference source 13 and capacitor 9 are connected as shown through resistors 23, 24 to a contact 21 of the relay 20 and the rectifier 10 is connected so that when the armature 17 is not engaged with contact 21, the transient applied to the input 2, 3 is dependent on the difference between the potential of the source 13 and that across the capacitor 9. When the contact 21 is engaged by the armature the input is short circuited. In a further modification, Fig. 3 (not shown), the load current is maintained constant by charging the capacitor 9 from the voltage across a resistor in series with the load. It is stated that the relay 20 can be replaced by an electronic switching device.
Patent GB-775478-A (GB)
Title: Improvements in and relating to aminophenoxyalkanes
Inventor: CALDWELL ALBERT GORDON
Filed: 1954-03-17
Abstract: The invention comprises aminophenoxyalkanes of the formula <FORM:0775478/IV(b)/1> wherein the groups -NR1R2 and -NR3R4 are different, R1, R2, R3 and R4 being hydrogen or alkyl groups having from 1 to 4 carbon atoms or alkyl groups having from 2 to 4 carbon atoms and carrying at least one hydroxyl group on a carbon atom or carbon atoms other than that adjacent to the nitrogen atom and n is an integer from 3 to 10, and acid addition salts thereof.  The compounds are made by treating a compound of the formula <FORM:0775478/IV(b)/2> wherein W is a group -NR1R2 or a group convertible thereto and Z is a group convertible to the group -NR3R4 to effect the desired conversion.  Examples of groups convertible to amino groups are nitro (by reduction), acyl amino and acylalkylamino (by hydrolysis or reduction of the acyl group), alkoxycarbonamido and alkoxycarbonalkylamido (by hydrolysis) and nitrosoalkylamino (by reductive removal of the nitroso group).  Examples describe the preparation of the a -(p-aminophenoxy)-o -(p-methylaminophenoxy) derivatives of pentane, hexane and heptane; the a -(p-aminophenoxy)-o - (p - dimethylaminophenoxy) derivatives of pentane, hexane, heptane and octane; 1-(p-aminophenoxy) - 6 - (p - di - b  - hydroxyethyl-aminophenoxy) - hexane; 1 - (p - aminophenoxy) - 6 - (p - di - b  - hydroxypropylaminophenoxy) hexane; 1-(p-ethylaminophenoxy)-6-(p-methylaminophenoxy) hexane; 1-(p-dimethyl-aminophenoxy) - 6 - (p - methylaminophenoxy) hexane and 1-(p-dimethylaminophenoxy)-7-(p-methylaminophenoxy)-heptane. Starting materials. 1-(p-Acetamidophenoxy-7-(p-acetmethylamidophenoxy) heptane and 1-(p-acetethylamidophenoxy) - 6 - (p - acetmethylamido-phenoxy) hexane are made by reaction of 7-p-acetamidophenoxy-heptyl bromide and 6-(p-acetmethylamidophenoxy) hexyl bromide respectively with the appropriate p-substituted phenol.  Specifications 749,907, 749,923, 758,382, 770,410, 770,411 are referred to and Specification 765,957 is referred to in the Provisional Specification.
Patent GB-1042761-A (GB)
Title: Improvements of bonding quality of metal surfaces
IPC: C25D5/16
Filed: 1963-02-27
Abstract: To improve the bonding quality for synthetic resin adhesives of a metal surface, the surface is electroplated with an adherent micro-rough layer of copper from an alkaline cyanide-free copper bath at a cathode current density of 10 to 150 ASF. Preferably the micro-rough copper surface is then exposed to a solution which forms with copper a compound of low solubility in the solution, e.g. a chromate molybdate, tungstate or vanadate formed from a weakly acid solution or a sulphide, selenide or telluride. Typically the micro-rough layer is deposited on a copper base although any metal readily platable with copper may be used as base. One or both sides of the base may be treated. Numerous copper plating baths are disclosed all based on copper sulphate and made alkaline with sodium hydroxide.  A complexing agent such as Rochelle salt, citric acid, lactic acid, glycollic acid, salicylic acid, or glycerol may also be included in the bath. Alkaline copper sulphate baths containing borax or sodium pyrophosphate are also disclosed.  The treated copper surface is used in the production of laminates for printed circuits.
Patent GB-486746-A (GB)
Title: Improved insulating supports for electric conductors
IPC: H01B17/24
Filed: 1937-03-17
Abstract: 486,746. Insulators. RAHIM, A. March 17, 1937, No. 7899/38. Divided out of 486,691. [Class 36] An insulator for supporting a main conductor 6 and for teeing-off a branch conductor 11 therefrom, comprises a base part 1 and an outer part 5 drawn together by a bolt 3 so as to clamp the main conductor, the bolt preferably serving as the means for attaching the insulator to a supporting pole and being formed with a hooked end which enters a curved slot 7 in the outer part of the insulator. Between that portion of the outer part against which the bolt presses and the portion adjacent the base part a hole 8 is formed to receive an anchoring loop 10 of the branch conductor, the end of which is spliced to the main conductor in the usual manner. The bolt 3 may be employed in the manner described in Specification 486,691, to support a second insulator which may or may not be adapted for holding a branch conductor. Specification 412,712 also is referred to.
Patent GB-703819-A (GB)
Title: Eight-cylinder internal combustion vee-engine
IPC: F02B75/22
Filed: 1952-03-27
Abstract: 703,819. Cooling lubricant. FIAT SOC. PER AZIONI. March 27, 1952 [May 4, 1951], No. 7926/52. Class 12(3) [Also in Group XXVII] A pump 31 circulates I.C. engine sump oil past a valve 30 and a thermostatically controlled valve 34 which returns the oil directly to the sump via a pipe 35 below a predetermined oil temperature and to the sump via a cooler 36 above this temperature. A pipe 33 conveys oil to the engine.
Patent GB-1068271-A (GB)
Title: Method for the fermentative synthesis of 'uridylic acid
IPC: C12P19/30
Filed: 1965-02-24
Abstract: Uridylic acid is obtained by culturing Brevibacterium ammoniagenes under aerobic conditions in an aqueous nutrient medium containing orotic acid, an acid addition salt thereof or orotidine at 20-40 DEG C. and pH 5.5 to 9.0.
Patent GB-854487-A (GB)
Title: Improvements in or relating to apparatus for simultaneously grinding the two faces of a glass sheet
IPC: B24D7/06
Filed: 1957-03-11
Abstract: 854,487. Tools for grinding glass. COMPAGNIE DE SAINT-GOBAIN, [formerly MANUFACTURES DE GLACES ET PRODUITS CHIMIQUES DE SAINT GOBAIN, CHAUNY & CIREY S.A., DES.]. March 11, 1957 [March 10, 1956], No. 8007/57. Class 60. An apparatus for simultaneously grinding the two faces of a glass sheet comprises a lower grinder having a supporting member 6 which is disposed within the space bounded by an annular rubbing member 8, rotated by the grinder, and composed of a material such that the wear on the supporting member is substantially the same as that on the rubbing member. The rubbing member 8 is supported on a holder 4 secured by means of an annular plate 3 and bolts 12 to a collar 2 on a shaft 1. The supporting member 6, which prevents the glass bending within the area bounded by the rubbing element, is composed of material, such as wood in the form of slats 13 or sawdust in a cement, plaster or like binding medium, and is disposed in an annular channel 7 secured by bolts 11, 12 and members 10 to the plate 3. The slats may be disposed in one or more circles and provided with holes for the penetration of the binding material to increase the cohesion of the supporting member.