baber/WOPTO huggingface dataset:
Patent GB-789942-A (GB)
Title: Improvements in or relating to a device for measuring diving depths
IPC: G01L7/04
Filed: 1956-02-14
Abstract: 789,942. Diving-depth pressure gauges. DRAGER, O. H. Feb. 14, 1956 [June 13, 1955], No. 4583/56. Class 106 (2). [Also in Group XX] A diving-depth measuring device, operating a pointer 7 is combined with a magnetic compass whose rose 18 and housing 11, 13 are transparent to enable the depth pointer to be seen through the top of the casing. The gauge and the compass are coaxially arranged and their scales may be marked in different luminous colours. A mounting 22, provided with lateral windows 23 for viewing a turned-down portion 19 of the compass card, holds together the compass housing 11, 13 and the pressure gauge housing 1. The device is mounted in a rubber support 24 provided with a wrist strap and having a spring bead 25 engaging a groove 26 in the housing 1. The water pressure is communicated to the interior of the housing 1 by channels 27, 3 and the interior of the compass housing may be liquid filled leaving an air bubble 21 to indicate when the device is held horizontally.
Patent GB-191639-A (GB)
Title: An improved construction of a single fluid primary cell
IPC: H01M6/04
Filed: 1922-02-16
Abstract: 191,639. Weatherill, F. Feb. 16, 1922. Gas absorbers; arrangement; electrolytes. - A sealed primary battery of the type which is brought into action by inverting it is provided with a gas digester, so arranged that the latter is immersed in the electrolyte when the battery is not operating. The gas digester 2 consists of a perforated lead chamber packed with charcoal and the electrodes comprise the zinc rod 17 and the rectangular carbon plates 3, 4. The carbon plates protrude through the lead tray 7 and their upper edges are copper-plated for connection with the tray 7 and the outer lead casing 1. The zinc is supported by the lead cylinder 10 and is insulated therefrom by a rubber tube having a flange 19. Pressure is exerted on the head of the zinc rod by the thumb-screw 16 which passes through the middle of the bus-bar 15 held by uprights cemented into the acid-resisting material 11. A solution of potassium bichromate and nitrate, sodium chloride and mercuric sulphate in a mixture of hydrochloric and sulphuric acids is used as the electrolyte.
Patent GB-990293-A (GB)
Title: Starting arrangement, especially for impedance protecting devices
IPC: H02H3/40
Filed: 1962-02-07
Abstract: 990,293. Protective systems. BROWN, BOVERI & CO. Ltd. Feb. 7, 1962 [Feb. 9, 1961], No. 4768/62. Heading H2K. In an impedance protective arrangement, a starting relay 11 has its coil connected for energization by a first component in the operating direction and proportional to the current (IT) in one phase, a second component in the operating direction and proportional to the interphase voltage (U RS ) between the other two phases and a third component in the restraining direction and proportional to the voltage (U T ) of the first phase. As shown, the relay coil is connected in a rectifier bridge circuit in which a rectifier 10 is supplied with the first component through an auxiliary transformer 7 from current transformers 4, a rectifier 8 is supplied with the second component through an auxiliary transformer 5 from a potential transformer 3 and a rectifier 9 is supplied with the third component through an auxiliary transformer 6 from the transformer 3. Resistors 12, 13 have magnitudes such that the relay is restrained by a current proportional to three times the phase voltage less the interphase voltage (3 UT -U RS ), a rectifier 18 preventing this current from ever acting in the operating direction on the relay. A zero sequence component may be supplied to the relay by using any or all of auxiliary transformers 14, 15 and an additional primary winding on the transformer 7. A " compounding " current component may be added to the phase voltage component by an auxiliary transformer 16. The auxiliary transformers 14 . . . 15 may saturate at half their normal rating. It is stated that two such starting arrangements would provide adequate protection for any fault condition in a three-phase system.
Patent GB-1422086-A (GB)
Title: Production of formaldehyde in a fluidised bed with a specific termperature gradient
IPC: C07C67/00
Filed: 1974-02-01
Abstract: 1422086 Formaldehyde DEUTSCHE GOLDUND SILBER SCHIEDEANSTALT 1 Feb 1974 [1 Feb 1973] 04782/74 Heading C2C In a process for the production of formaldehyde which comprises reacting methanol with oxygen on an oxide catalyst in a fluidized bed, a negative temperature gradient is adjusted in the direction of the gas flow by elements arranged in the bed which impede free circulation of the catalyst, the temperature gradient amounting to 0À1 to 2À0 C./cm. of fluidized bed height. Suitable elements include gauzes, perforated plates, wire spirals or layers of packing elements. A suitable catalyst consists of iron-molybdenum-titanium oxide.
Patent GB-1162883-A (GB)
Title: Improvements in Printing Machines
Inventor: KELLY WILLIAM GEORGE
IPC: B41K3/04
Filed: 1967-02-01
Abstract: 1,162,883. Selective printing. MODERN LABELLING METHODS Ltd. 31 Jan., 1968 [1 Feb., 1967], No. 4813/67. Heading B6F. A hand-operated portable printing machine for printing labels temporarily supported on a backing strip, comprises a horizontal base 1 supporting a spool 6 for the strip, a presser finger 10, a step-by-step feed finger 23, a platen (3), Fig. 2 (not shown), and supports spaced one at each side of the platen, each support comprising a locking member 32 biased by a spring 38 into locking engagement with pins 44 formed on the chassis of a printing device (not shown), the locking member 32 being displaceable against the spring bias to release the printing device and being forcibly displaceable by pressing on the printing device against sloping surfaces (43), Fig. 4 (not shown), to receive the device. Each locking member 32 is slidable with respect to a fixed member 29, and is formed with bayonet slots to receive the pins. 44. The printing device is of the kind comprising adjacent flexible endless bands stretched between guides and movable to locate a required character thereon in a printing position, the bands and guides being mounted for vertical reciprocation in a chassis bearing the pins 44. The step-by-step feed finger 23 is pivotally mounted on a shaft 22 fixed to a frame 14, the frame being pivotable clockwise about a shaft 17 by a lever 26 against the action of a spring 20, the spring returning the frame for feeding motion to a position against a stop 19. The spool 6 is covered by a cover 7 on which the presser finger 10 and feed device 14, 23 are mounted, the cover being hinged at 8 to the base 1 and releasably fastened thereto by a catch including a spring 47 acting on a lever 48 pivoted at 49. The cover is lifted for replacement of the spool 6. The printing device may operate the feed device by engagement of a pin 46 thereon with the lever 26. The printing device may be operated by a motor drive. The swinging movement of the frame 14 may operate a counter.
Patent GB-1498069-A (GB)
Title: Process for the continuous level processing of tow in the hydrated condition
IPC: D06P5/20
Filed: 1975-02-05
Abstract: 1498069 Processing acrylonitrile tows CIBAGEIGY AG 5 Feb 1975 [6 Feb 1974] 4935/75 Heading B5B [Also in Division D1] A tow of fibres preferably of polyacrylonitrile from a wet spinning process while still in the hydrated condition is spread out to form a ribbon having a maximum thickness of 2 mm. prior to impregnation with a processing liquid, e.g. a dye, optical dye or antistatic composition. The spread is achieved with the aid of curved rods or rollers and the tow is immersed in 100-500 times the amount of the immersed fibre ribbon. In addition constant absorption is obtained by adding to the bath a constant supply of liquor equal to that taken up during impregnation and excess liquid squeezed out or stripped off during impregnation is returned to the bath. The tow may be stretched before or after impregnation.
Patent GB-1218951-A (GB)
Title: Pin contact for a filtered connector
Inventor: TUCHTO JEFF
IPC: H01R13/7197
Filed: 1968-01-31
Abstract: 1,218,951. Two-part couplings. BUNKER RAMO CORP. 31 Jan., 1968 [1 Feb., 1967], No. 5044/68. Heading H2E. A pin contact 10, e.g. of copper, located in a cavity 54 in a housing member 12, comprises a central portion 16 having ferrite sleeves 32 around it, a ceramic sleeve 34 encircling the ferrite sleeve 32 and two resilient conductive washers 46, e.g. of rubber containing conductive material, which protect the ceramic sleeve 34 against shocks and vibrations. The pin contact 10 also comprises two enlarged portions 18, 22 the portion 18 being extended into a reduced diameter pin element 25 which passes through a cavity 56 and at the other end the portion 16 is crimped at 28 to a conductor 26 which is connected to an instrument within a casing 30. A pair of axially spaced cylindrical electrodes 38, are deposited on the inner surface of sleeve 34 to form plates of a capacitor, another plate 40 of which is deposited around the sleeve 34, the plate 40 being connected to a casing 30 by inwardly projecting prongs 61 in an aperture in a plate 60 bolted to the casing at 62. The conductive resilient washers 46 are radially and axially compressed respectively between the inner plates 38 and the central portion 16, ceramic sleeve 34 and shoulders 20, 24 on enlarged portions 18, 22.
Patent GB-631259-A (GB)
Title: Aluminium optical mirrors
IPC: C25D11/04
Filed: 1947-02-20
Abstract: A mirror is made by forming a coating of oxide on the surface of an aluminium blank by anodizing, polishing the oxide surface to the desired degree of optical accuracy and then coating the polished surface with a highly reflective metallic film.  In the method described, an aluminium blank is drilled, counterbored, &c., as required for its mounting in an optical instrument, is worked to approximately the final dimensions of the mirror, is stress-relieved by heating, and is then machined to the correct final dimensions. The blank is then anodized as by passing a current through a bath of sulphuric acid in which the blank is immersed; the oxide surface so formed is then polished.  On to the oxide surface may be applied by thermal evaporation in vacuo a reflecting film as of silver, aluminium, platinum or rhodium. Alternatively, a layer of palladium, platinum, nickel, cobalt, silicon, chromium or manganese may be applied to the oxide surface, the reflecting film being coated on this layer.  The reflecting layer may subsequently be coated with an oxide as of aluminium.
Patent GB-568794-A (GB)
Title: Improvements in the production of magnesium chloride
IPC: C01F5/30
Filed: 1943-03-29
Abstract: 568,794. Magnesium chloride. MATHIESON ALKALI WORKS. March 29, 1943, No. 5066. Convention date, March 28, 1942. [Class 1 (iii)] In the production of magnesium chloride by carbonating slurries of mixed magnesium and calcium hydroxides in calcium chloride liquors containing sulphate, such as the waste liquors from the ammonia-soda process, the limemagnesia mixture obtained by roasting dolomite is first hydrated in an aqueous medium free from sulphate to give a dry mixture of magnesia and calcium hydroxide which yields a uniform slurry with the calcium chlorite liquor, whereby the yield of magnesium chloride is improved. The hydrating medium is preferably a portion of waste liquor from which soluble sulphates have been removed by addition of a barium salt.
Patent GB-739449-A (GB)
Title: Improvements in or relating to electric amplifier circuits
IPC: H03F3/22
Filed: 1954-02-22
Abstract: 739,449. Valve amplifying circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 22, 1954 [Feb. 23, 1953], No. 5133/54. Class 40 (6). An amplifier for operation direct from A.C. supply comprises one or more screen-grid valves with A.C. applied to both the gridcathode and anode-cathode circuits in such manner that in the absence of a signal on the control grid the anode current is substantially zero at any instant. In order to amplify throughout the mains supply cycle, three parallel-connected push-pull pairs of valves are used with their H.T. terminals 16, 161, 16<SP>11</SP> respectively connected to the phases of a threephase supply. In each pair 3, 4 the screens are connected directly to the H.T. terminal 16 &c. and the cathodes taken to a tap on an autotransformer 8, 9 such that the valves are normally always cut off in the absence of a signal. Signals to be amplified are applied to the grids in push-pull over rectifiers 14, 15 which prevent distortion due to grid current occurring. The cathode circuit is decoupled for signal frequencies by a condenser 17. The arrangement may be modified for amplifying direct currents.
Patent GB-720558-A (GB)
Title: Improved safety guard for band knife machines
Inventor: BEECROFT HENRY
IPC: B26D7/22
Filed: 1952-02-27
Abstract: 720,558. Machinery guards. BEECROFT & CO., Ltd., T. July 13, 1953 [Feb. 27, 1952], No. 5143/52. Class 80 (4) A guard for a band knife machine for cutting material comprises a relatively thin and elongated member 2 having a longitudinal slot 3 to embrace the band knife 10 and a slotted portion 4 to engage a guide 5 secured to the head cover or framework 7 of the machine. Spring devices in the guide 5 serve to retain the guard in any adjusted position. A foot portion 19 is provided at the lower end of the guard member 2 to guide the knife in close proximity to the material being cut and a removable rod 12 is provided to cover the slot 3. The guard element may be wholly or partly of transparent material, particularly at its lower end.
Patent GB-1179231-A (GB)
Title: Surface Active Urethanes
Inventor: BURBRIDGE JOHN FREDERICK
IPC: C09D175/00
Filed: 1966-02-05
Abstract: 1,179,231. Condensation polymers. HONEYWILL-ATLAS Ltd. 20 Jan., 1967 [5 Feb., 1966], No. 5166/66. Heading C3R. The invention comprises urethanes of the formula in which R denotes (1) R<SP>1</SP>O-, R<SP>1</SP> being a C 1 -C 18  alkyl or acyl group, a C 2 -C 18  alkenyl group or a phenyl or mono- or di-alkyl phenyl group of 6-24 carbon atoms, or (2) a residue -N(R<SP>11</SP>)R<SP>111</SP>, R<SP>11</SP> and R<SP>111</SP> denoting alkyl groups of a total number of carbon atoms of 2-24, m and n are integers of 0-80, at least one being between 1 and 80 and being such that the product contains an average of 40-90% by weight of ethoxy groups, A and B denote the same or different straight or branched alkylene chains of 2-4 carbon atoms, at least one being a C 2  chain, y is an integer of 1-4 and X denotes an alkyl, aryl or alkaryl group. The products are obtainable by reacting one or more alcohols R(AO) n (BO) m H with an isocyanate X(NCO)y. Thus, in Example 1, straight-chain alcohols of 8-10 carbon atoms are condensed with ethylene oxide and the product is reacted with toluene diisocyanate to produce a final product of the formula The subject-matter of Specification 822,504 is disclaimed.
Patent GB-854483-A (GB)
Title: Rope manufacture
IPC: D07B3/04
Filed: 1957-02-15
Abstract: 854,483. Bobbins. BUHLER, M. Feb. 15, 1957 [March 8, 1956; July 2, 1956], No. 5267/57. Class 120(3). [Also in Groups XXV and XXXIV]. A double flanged bobbin per wire has attached by riveted rods 35 bushings 34, with friction surfaces to engage rings 37 of plastic or leather to give a braking action, attached at one end to the spindle and to an adjustable cur 38 on the spindle at the other end.
Patent GB-1045612-A (GB)
Title: Surge protection for the adjustable winding of a booster autotransformer
IPC: H02H7/055
Filed: 1964-02-07
Abstract: 1,045,612. Transformers. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. Feb. 7, 1964 [Feb. 8, 1963], No. 5270/64. Heading HIT. [Also in Division H2] A booster transformer having the voltage of its tapped secondary winding 7, 8 added reversibly into circuit 10, 5 through a changeover switch 4 has enclosed in the same tank surgelimiting members (voltage dependent resistors) 25 connected across some or all of the taps on one half of the winding. The lead 9 is taken out through a subsidiary bush of a multiple bushing insulator 24, the former requiring insulation to 25 kv. only. Surge diverters 13, 16 are provided (see Division H2).
Patent GB-1397530-A (GB)
Title: Valve actuator
IPC: F16K31/04
Filed: 1974-02-05
Abstract: An electric actuator for varying the position of a valve stem comprises an output shaft adapted to be coupled to the valve stem. The output shaft is selectively rotated, between limit positions defined by a pair of electrical limit switches cooperating with cams carried by the output shaft, through the agency of a motor module comprising one or more electric motors and an associated gear box having an output pinion in drive engagement with an output gear coupled to the output shaft. The output gear includes two sets of concentric teeth disposed in spaced relation to one another, and adapted to be engaged individually by the motor module pinion, for driving the output shaft at different torques and speeds in dependence upon which set of output gear teeth is engaged by the pinion. The motor module can be mounted in either of two different positions to cause its pinion to engage one or the other of the output gear teeth sets. The output pinion is preferably located at an eccentric position relative to the motor module so that pinion engagement can be shifted from one to the other of the gear teeth sets by a 180 DEG  reversal in the motor module mounting position.
Patent GB-494809-A (GB)
Title: Improvements in or relating to percussion fuzes
IPC: F42C15/26
Filed: 1938-02-21
Abstract: 494,809. Projectile fuzes. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST BRNO. Feb. 21, 1938, No. 5410. Convention date, Feb. 23, 1937. [Class 9 (i)] Relates to a direct-action percussion fuze, more particularly for grenades, of the kind which is mounted in the fore part of the body of the projectile, the striker being provided with a head which is protected from the action of the air pressure during flight of the projectile by means of a membrane. According to the invention, the striker is provided with controlling means which co-operate in such a manner with controlling means provided on the body of the projectile or on a part rigidly connected therewith, that axial displacement of the striker from its secured position to its released position as the result of the retardation of the body of the projectile in relation to the striker during flight, is permitted, and that when, and only when, the striker is in its released position, rotational movement of the striker can take place about its own axis relatively to the body of the projectile into a position in which the striker is capable of moving axially to effect detonation of the explosive charge. As shown, the body 1 of the projectile has screwed therein an insertion 2 having on its outer face two diametrically opposite securing recesses 3 and two deeper perforation recesses 4 also located diametrically opposite each other and displaced 90‹ apart from the recesses 3. The striker 5, which passes through a bore in the insertion 2, is formed with lateral lugs 6, 61 resting in the recesses 3 and extending into longitudinal grooves in an inertia shear-off collar 10. The striker is provided with a head 7 which is protected against air pressure by a membrane S. On discharge, the collar 10 sets back and the striker is freed to disengage from the recesses 3. The projectile, as long as it is in the barrel, accelerates and the striker owing to its inertia is urged into the recesses 3, so that the rotation of the projectile is transmitted through the lugs, 6, 61 to the striker. After the projectile leaves the barrel, however, its flight is retarded by the air resistance and its spin reduced. The striker on the other hand, retains the forward speed already attained, so that its lugs slide out of the recesses 3 whilst continued rotation of the striker relative to the projectile in the direction of the spin causes the lugs 6, 6<1> to be brought into alignment with the recesses 4, a prolongated wall 11 of one of the recesses 4 serving as a stop. The striker is thus brought into a position in which, on impact, it can penetrate into the detonator and explode the charge. If desired, the relative movement of the striker may be effected by a spiral spring, one end of which is attached to the body of the projectile and the other to the striker.
Patent GB-124808-A (GB)
Title: Improvements in Fuel Feed Systems for use on Aeroplanes and the like.
IPC: F02M37/02
Filed: 1916-04-13
Abstract: 124,808. Sunbeam Motor Car Co., and Coatalen, L. April 13, 1916. Vacuum apparatus. -Liquid fuel for aeronautical engines is raised by suction from one or more main tanks to an auxiliary tank whence it is discharged by gravity to the carburettor, the source of suction being a separate pump driven by a vane wheel actuated by the motion of the aeroplane. The auxiliary tank C, D is fed through a pipe B from the main tank A, is connected by a pipe F with the suction pump G driven by the vane wheel H, and contains a float K for actuating the suction and air control valves. The main tank has an air vent J, which may be a spring-loaded valve.
Patent GB-1200169-A (GB)
Title: A conveyor
IPC: B65G25/00
Filed: 1969-01-31
Abstract: 1,200,169. Conveyers for container traffic. NORDSTROMS LINBANOR A.B. 31 Jan., 1969 [1 Feb., 1968], No. 5451/69. Headings B8A and B8Q. A conveyer consists of two parallel tracks 1 in the deck 2 of a ship. In each track, a load support beam 4 has wedge-shaped cams 9 which engage wheels 8 mounted on two carriages 5 connected by a rod 11. The wheels 8 and cams 9 provide for raising and lowering of the beam 4 relative to the carriages which are supported on rails 7 and are connected to the beam 4 by a spring 10. For moving the assembly along the track, a chain 15 drivable by a motor 20 is secured at 16 to one of the carriages and at 17 to the beam 4. In Fig. 1 (not shown) the beam is in its lowered, non-transporting position. In Fig. 2, a ram 25 connected to the tensioning sprocket 21 has caused the sprocket to move to the left and the left hand ends of the carriage and of the beam 4 move towards one another against the action of the spring 10. The beam 4 is accordingly raised by the action of the cams 9 and wheels 8 and the upper surface 12 of the beam protrudes above the deck 2 to engage a load. After moving the load along the track by energizing the motor 20, the load is lowered by relieving tension on the chain 15. To allow the conveyer to receive goods through a hatch opening in an overlying deck the track may continue into a hatch cover 26, Fig. 3. Figs. 4, 5 (not shown) illustrate how conveyers are arranged in a ship having a number of decks for accommodating load containers (27). Space may be saved by placing the chain loop horizontally, one motor for each conveyer then being necessary. The beams 4 may be raised and lowered by link systems and the conveyers may extend into shell doors of vessels loaded through the hull.
Patent GB-569476-A (GB)
Title: Improvements in muzzle-brakes for firearms
IPC: F41A21/36
Filed: 1943-04-08
Abstract: 569,476. Muzzle-brakes for firearms. AKTIEBOLAGET J. C. LJUNGMAN. April 8, 1943, No. 5665. Convention date, April 8, 1942. [Class 119] A recoil-brake for attachment to the muzzle 1 of a firearm comprises a perforated tube 3, of the same diameter as the barrel, constricted at its front outlet by a bush 6 which extends rearwardly into the expansion chamber 7, so that the bullet enters the bush before it clears the barrel-bore 2. The tube 3 is perforated around the annulus as well as around the free space at 4. The Specification as open to inspection under Sect. 91 describes also embodiments without the bush and having the apertures inclined at various angles and arranged around part of the periphery of the tube 3 only, so as to eliminate jump. This subject-matter does not appear in the Specification as accepted.