baber/WOPTO huggingface dataset:
Patent GB-656734-A (GB)
Title: Improvements in or relating to the diffusion of chromium into iron or steel surfaces
IPC: C23C10/42
Filed: 1948-04-28
Abstract: Chromium is diffused into iron or steel by reacting the latter with chromium iodide in the presence of a copper catalyst.  The iodide may be formed in situ by reaction between iodine or an iodine compound and chromium or ferro-chromium, and the copper may be present as metallic copper, as an alloy or as a copper compound.  Kaolin may be used as a diluent and the diffusion may be carried out between 800 DEG  and 1300 DEG C.
Patent GB-643423-A (GB)
Title: Improvements relating to the frames or chassis of perambulators and the like
IPC: B62B9/18
Filed: 1948-04-29
Abstract: 643,423. Vehicle underframes; spring suspensions. TAN SAD, Ltd., and SHOTT, P. April 29, 1948, No. 11719. [Class 108(ii)] A frame or chassis of a perambulator or the like comprises two side sections a having curved extremities a<SP>1</SP> connected by transverse parts b which are adjustably coupled by a tension rod or rods c having hand screw or like adjustment means c<SP>2</SP>, the adjustment of which rod or rods not only pulls the end parts of the frame or chassis together to vary the degree of resilience in the curved extremities, but in the case of two rods (as shown) provides for the correct alignment or setting of the frame or chassis and subsequent trueing of the wheels. In the arrangement shown, the ends of the members b, b telescope into the ends a<SP>1</SP>, a<SP>1</SP>, and a U-shaped bracket depending from the latter is secured to the upper of a pair of hinged members e, f which are connected at their free ends by a coil compression spring h and which constitute a wheel mounting for the vehicle as described in Specification 643,424. In a modification, the tubular sections a, a, ends a<SP>1</SP>, a<SP>1</SP> and the transverse members b, b, may be constructed from a single length of tubing of circular, square or other cross section.
Patent GB-575417-A (GB)
Title: Compound master cylinder
IPC: B60T11/224
Filed: 1943-07-19
Abstract: 575,417. Hydraulic brakes. SCHNELL, S. July 19, 1943, No. 11723. [Class 103(i)] A hydraulic master cylinder for operating brakes &c. comprises a low pressure piston which is initially operative and carries a valve which when a predetermined pressure has been established in the cylinder is opened to render this piston ineffective and to render a high pressure piston effective. Communication between the reservoir and the cylinder is closed when an operation is initiated by axial movement of the cylinder as described in Specification 549,455. As shown, the master cylinder 9 is slidably mounted in a reservoir casing 1 by front and rear extensions 12, 14. Normally, the projection 12 uncovers a slot 17 to connect the reservoir to the outlet passage 3. A low pressure piston 22 is secured to a high pressure piston or plunger 24 of smaller diameter. A valve 36 urged by a spring 40 normally closes a passage 31 between the forward chamber of the cylinder and the rear chamber 30 and is connected to a normally unseated valve 38 which, with the sealing-cap 39, controls a passage 32 through the plunger 24. Upon forward movement of the piston the cylinder is moved forwardly to close the reservoir connection through the slot 17 either by the friction between the piston and cylinder or if this is inadequate, by the pressure which develops in the cylinder, acting on the cylinder wall 11. A spring-urged disc-valve 42 restricts flow from the cylinder to the reservoir and thus ensures rapid development of the cylinder pressure. This valve permits free flow in the reverse direction.. During the initial movement of the pistons in the cylinder, while the low pressure piston 22 is effective, liquid is drawn into the chamber 30 from the reservoir through the passages 15, 41, 32, 35. When the pressure forward of the piston 22 and in the pipe lines is sufficient to open the valve 36 against the action of the spring 40, the piston 22 is rendered ineffective and the plunger 24 becomes effective. The valve 38 is closed at this stage and with the seal 39 prevents flow from the cylinder to the reservoir through the passage 32.
Patent GB-1174178-A (GB)
Title: 0,2,5-Thiadiazole Derivatives
Inventor: WEINSTOCK LEONARD MAURICE
IPC: C07D285/10
Filed: 1967-07-24
Abstract: 1,174,178. 1,2,5-Thiadiazole derivatives. MERCK & CO. Inc. 24 July, 1967 [1 Aug., 1966], No. 11759/69. Divided out of 1,174,177. Heading C2C. Novel 3 - amino - 4 - OR - 1,2,5 - thiadiazoles wherein R is C 1-5  alkyl, C 2-5  alkenyl or C 2-5  alkynyl are obtained by treating a corresponding 3-nitrile or 3-carbamoyl compound with an alkali metal or alkaline earth metal hypochlorite or hypobromite in the presence of a strong base. 3 - Allyloxy - 4 - (p - acetylaminobenzenesulphonylamino) - 1,2,5 - thiadiazole, obtained by the interaction of N-acetylsulphanilyl chloride and 3 - allyloxy - 4 - amino - 1,2,5 - thiadiazole, is converted to 3 - allyloxy - 4 - sulphanilamido - 1,2,5 - thiadiazole by heating under reflux with sodium hydroxide solution; 3-(2- butynyloxy) - 4 - (p - acetylaminobenzenesulphonylamino) - 1,2,5 - thiadiazole and 3 - (2- butynyloxy) - 4 - sulphanilamido - 1,2,5 - thiadiazole are similarly obtained.
Patent GB-1078855-A (GB)
Title: Preparation of high polymers of olefin having high crystallinity
IPC: C08F4/68
Filed: 1965-03-19
Abstract: A catalyst for the production of highly crystalline 1-olefin polymers comprises the admixture of (1) the reaction product of (a) a halide of a Group IVa, Va, or VIa metal in its highest valency state and (b) an organometallic compound of a Group Ia, IIa, IIIa or IIb element (excluding mercury) with (2) an organo-aluminium compound of the formula:-Al(OR)R1X wherein R and R1 each represent a monovalent hydrocarbon radical, and X represents a halogen atom.  Halide (a) may be TiCl4 or VOCl3. Specified organometallic compounds are compounds of Li, Na, K, Mg, B, and Al.  Component (2) may be ethyl-ethyoxy aluminium chloride or bromide, ethyl-phenoxyaluminium monochloride or phenylethoxyaluminium monochloride.  Specified 1-olefins are ethylene, propylene, n-butene, pentene-1, and styrene. The polymerization may be effected in bulk or in an inert organic diluent, and either batch-wise or continuously.  Exemplified catalysts are (1) the reaction product of diethyl aluminium chloride and TiCl4 with ethyl-ethoxy-aluminium monochloride, (2) the reaction product as (1) ethyl-phenoxyaluminium monochloride, (2) the reaction product of VOCl3 and (C2H5)2Cd, and phenyl-butoxyaluminium monobromide, (3) the reaction product of CrCl3 and butyl lithium with ethyl-propoxyaluminium monochloride, and (4) the reaction product of TiCl4 and diphenylmagnesium with ethylbutoxy-aluminium chloride.  The polymers are extracted with boiling heptane.
Patent GB-641952-A (GB)
Title: Improvements in the springing of car wheels
IPC: B60G11/12
Filed: 1947-05-05
Abstract: 641,952. Road-vehicle spring-suspensions. MOHL. S: May 5, 1947, No. 12066. Convention date, Jan. 18. [Classes 108(ii) and 108 (iii)] In a device for freely suspending the chassis frame of a motor vehicle having two axles, on the casing of at least one of the axles, by means of two laminated springs both of which are rigidly attached to the casing of the axle in question intermediate their ends, and at one end are themselves directly connected to a point of the frame located in the region between the vertical planes containing the axles and at the opposite ends are each connected to the frame at a point located outside this region, the flexibility of the spring portion located outside the region in combination with the resiliency (if any) of the members connecting the spring portion to the frame, is higher than the flexibility of the spring portion within the region, in combination with the resiliency (if any) of the members connecting the ends of the second-mentioned spring portion to the frame. In the construction shown in Fig. 2, leaves of the spring 2 are longer on one side of the axle to provide a more flexible spring portion 2a which is connected with the frame 1 by a link 5, arm 6 and torsion bar 7. The latter provides the suspension with a progressively increasing rate. In the construction of Fig. 1 (not shown) the torsion bar 7 is dispensed with and the end of the spring portion 2a is connected to the frame by a shackle. Reference has been directed by the Comptroller to Specification 655,363.
Patent GB-663057-A (GB)
Title: Improvements in brake wear adjusting devices
IPC: F16D65/14
Filed: 1949-05-05
Abstract: 663,057. Brake wear adjustment. WING- FOOT CORPORATION. May 5, 1949 [Jan. 21, 1949], No. 12070/49. Class 103 (i). The fluid-pressure actuator for a spot type disc brake includes a positioning member 13, 14 having secured to its outer end a spring cup locking element 26, the edges of which engage in the threads 25 on the bore of a fixed adjustment nut 24, thus preventing any outward movement of the member 13, 14. The element 26 has its sides cut away so as to enable it to be compressed for movement inwardly of the member 24. The normal brake clearance is that shown between distance sleeve 16 and the head 14 of the positioning member 13, this clearance being reset by the spring 15 after each brake applying movement of the piston 11.
Patent GB-166744-A (GB)
Title: Apparatus for removing dust during the process of brushing earthenware or china
IPC: B24B55/06
Filed: 1920-05-01
Abstract: 166,744. Adams, B. May 1, 1920. Pottery. - Apparatus for removing dust from pottery during brushing, towing, or fettling, comprises a hood A consisting of a lower part a fixed to the conical end of an exhaust pipe h and an upper part b divided at e and adjustably secured upon the part a by a clamp f in accordance with the position of the brush c which is carried by a shaft d passing through the hood. A grating k of gauze or expanded metal arrests the larger pieces of material.
Patent GB-294928-A (GB)
Title: Improvements in or relating to four-stroke cycle internal combustion engines working with supercharging
IPC: F02B1/00
Filed: 1928-04-26
Abstract: 294,928. Sulzer FrÞres Soc. Anon. Aug. 1, 1927, [Convention date]. Four - stroke - cycle engines; cylinders, air admission ports for; pumps. - Super-charging air is supplied through two admission pipes and valves 4, 5, so that the admission port area is twice that of the exhaust port area. The air may be supplied by a two - stage compressor driven by a waste gas turbine. One of the admission pipes may be connected to atmosphere through the pipe 10 or to a starting-air reservoir through the pipe 14, suitable stop valves 11, 13, 15 being provided in the piping to allow these connections to be effected. An air measuring chamber may be connected to this pipe. The pressure of air admitted through the two valves 4, 5 may be different and the valves may be worked together or independently, but it is arranged that one opens while the exhaust port is still open.
Patent GB-183912-A (GB)
Title: Improvements relating to protective devices for use with polyphase electric currents
IPC: H02H3/13
Filed: 1921-04-28
Abstract: 183,912. Langrish, N. G., and Metropolitan-Vickers Electrical Co., Ltd. April 28, 1921. Protective arrangentents.-In polyphase circuits, the circuit-breaker trip coil or coils, with or without the interposition of relays, are arranged to be energized from two or more of the phase conductors in such a manner that the resultant ampere-turns in the trip or relay coils are modified, due to alteration in phase relationship on the interruption of one line conductor, to enable the circuit-breaker to open with lower currents flowing in the remaining lines than when the system is operating normally. As applied to a three-phase circuit, Fig. 1, the overload trip coils for the circuit-breaker 1 consist of pairs of coils 5, 6, 7, 8, and 9, 10, each pair being energized from two of the phases such as AC, BC, and BC. These coils are arranged so that the resultant flux in each coil corresponds to the resultant of two-line currents separated by a phase angle of 60‹. On interruption of one phase C, one of the trip coils 7, 8 produces a resultant flux corresponding to the currents in the remaining lines A, B in phase and the circuit-breaker 1 is tripped when single-phase current in the lines A, B reaches 86 per cent of the current required to operate it under normal conditions. In a modification, Fig. 2, the trip coils 11, 12, 13 are supplied from the secondary windings 14, 15, 16 of transformers 17, 18, 19, the primary windings of which each consist of two coils 20, 21, and 22, 23 and 24, 25 connected in the phases A, B, C in a manner similar to the coils 5 - - 10, Fig. 1. As applied to a two-phase three-wire system, Fig. 3, special protection against single-phase operation is only provided when the neutral W is interrupted. Ordinary overload trip coils 28, 29 are connected in series with the lines A, B, each operating its own overload device, but there is also provided a third trip coil operated by the resultant of the phases A, B by means of coils 26, 27 in these lines. The flux in this latter coil normally corresponds to the resultant of the currents in the lines A, B in quadrature, and if the neutral N is interrupted, currents in the coils 26, 27 come into phase so that the overload device operates at 70.7 per cent of the line-tripping current under normal conditions. The invention is not limited to two or three-phase arrangements.
Patent GB-386192-A (GB)
Title: Improvements in or relating to supporting members for vacuum cleaners
IPC: A47L5/36
Filed: 1932-04-28
Abstract: 386,192. Vacuum cleaners. ELECTROLUX, Ltd., 153, Regent Street, London.- (Inventia Patent- Verwertungs- Ges. ; 10, Herrenacker, Schaffhausen, Switzerland.) April 28, 1932, No. 12233. [Class 8 (i).] The support for a vacuum cleaner comprises a sledge runner or runners 14, 16 and in some cases a roller or rollers, one or more of these supporting elements being capable of a swivelling motion about a vertical axis.
Patent GB-353027-A (GB)
Title: Improvements in or relating to machines for dyeing hats and like articles
IPC: D06B5/00
Filed: 1930-04-17
Abstract: A dyeing beck for hats &c. is divided by baffles &c. comprising perforated elements into a dyeing chamber and a chamber therebelow having a sloping base and communicating at its lower end with a propeller chamber from which another chamber tapers upwardly and outwardly at one end of the dyeing chamber, the inclined walls and partitions accelerating the flow of liquid in either direction through the beck.  The vat 1 comprises a dyeing chamber 5 separated by a perforated partition 2 from a lower chamber 7 having an inclined wall 8 adapted to direct fluid to a propeller chamber 8 which has inclined walls merging into an upper chamber 11 separated from the dyeing chamber 5 by a partition 3 provided with an aperture 4.  A propeller 6 is secured to a shaft 13 carried by a gland plate 19 which is secured to the bed plate 20 of a reversible electric motor 16 operatively coupled to the shaft 13, the whole comprising a complete unit adapted to be applied <PICT:0353027/IV/1> to the vat from outside and to be secured thereto by bolts 23 passing through a flange 22 on the gland-plate 19.  The gland-plate 19 is of conical formation to promote free circulation of the dye liquor past it, but is usually protected by a conical guard 25.  The direction of rotation of the motor 16 is controlled by a second electric motor 27 which operates a timing device 29, 30 adapted to cause the motor 16 to rotate in one direction for twice as long as it rotates in the other.  The motor 27 and timing device 29, 30 may be replaced by a mechanical reversing mechanism such as is described in Specification 353,026, [Group XXIV].
Patent GB-149742-A (GB)
Title: Improvements in operating mechanism for punching and like machines
IPC: B21D28/00
Filed: 1919-05-15
Abstract: 149,742. Marks, E. C. R., (Hanna Engineering Works). May 15, 1919. Punching. - A fluid-operated punching or like press, in which a sudden reduction of resistance occurs near the end of the stroke, has improved means to check the movement of the operating- member at this point, comprising a dash-pot 26 mounted on the rear end of the cylinder 25 and connected thereto by a pipe 31, so that fluid under pressure may pass from the cylinder to the dash-pot before the piston 30 passes into the lower portion of the dash-pot, which is of slightly smaller diameter than the upper portion. The main piston 20 is operated through the usual valve-gear 25<c>, and is connected by a link 19 to the main lever 18, pivoted on a link 22 connected to the main frame 10 at 22a. The opposite end of the lever 18 is connected at pivots 14<a>, 15, to the toggle links 14, 16, which operate the slide 13 carrying the punch 11. Holes 26<c> lead pressure fluid to the rear of the packing 28 of the piston-roll 29, to increase the contact between the packing and rod, and minimize leakage.
Patent GB-1292514-A (GB)
Title: Electricity meters
IPC: G01R1/20
Filed: 1970-03-13
Abstract: 1292514 Counters HELIOWATT WERKE ELEKTRIZITATS GmbH and DEUTSCHE ZAHLER GESELLSCHAFT NACHF A STEPPER & CO 13 March 1970 [15 March 1969] 12285/70 Heading G4D An electricity meter comprises two casings A, B, the former containing the more durable components, the latter those components such as the register 7 which are more likely to need replacement. Replacement of B can be effected without disrupting the supply of current.
Patent GB-252185-A (GB)
Title: Improvements in and relating to electric circuit controlling devices
IPC: H01H77/08
Filed: 1926-05-13
Abstract: 252,185. British Thomson-Houston Co., Ltd., (Assignees of Roberson, F.). May 16, 1925, [Convention date]. Automatic circuitbreakers. - High-speed circuit-breakers have a pair of co-operating independently - movable contact arms (each adapted to be held against an opening bias in the closed position) which are released on overload to break the circuit. In re-closing the two contact-members are moved in succession to their closed positions in which they are held by a single normally energized electromagnet so that release of the circuit-breaker is instantly effected if the overload persists when the circuit is again completed. As shown applied to circuit-breakers of the type described in Specification 125,279 the two pivoted contact arms 10, 11 carry armatures 18, 19 adapted to be held against pairs of poles 22, 24 of the retaining electromagnet 20 against the action of return springs 12, 13. The main circuit passes through conductors looped through the poles of the retaining magnet in such a manner that when an overload occurs the flux of this magnet is diverted from the armatures 18, 19, the contact arms being released to break the circuit at contacts 16, 17. In reclosing one of the contact arms e.g. 10 is first moved to its retained position by the manual or electromagnetic closing gear 23 after which the other contact arm 11 is similarly moved by its closing gear 25. If when the contact 17 re-engages contact 16 an excessive current flows, the contact arm 10 is instantly released and the circuit immediately re-opened.
Patent GB-665659-A (GB)
Title: Improvements in or relating to means for securing ceiling boards or the like in place
IPC: E04B9/16
Filed: 1949-05-09
Abstract: 665,659. Wall and ceiling linings. CHURCHMAN, H., and MERCHANT TRADING CO., Ltd. May 4, 1950 [May 9, 1949], No. 12365/49. Class 20(iv) Laths for supporting building boards and the like such as are described in Specifications 661,063 and 663,109 are supported by hangers 23, Fig. 8 which are attached to purlins or other structural members and have a tongue 24 adapted to lie along the face 45 of the upper flange 44 of the lath and clamped thereto by a U-shaped stirrup 48 provided with a set-screw 50. The limbs of the stirrup are slotted to engage under the flange 44 and to enable it to be slid into position. The end 51 of the tongue 24 may be turned up as shown to assist in retaining the stirrup 48 in position. A suitable hanger may be made from a metal strip which has been slit to provide a tongue 24 as shown in Fig. 5, portions 36 and 37 of the strip being bent back to grip the purlin 31. In a modification as shown in Fig. 6 where the tongue 24 of the hanger cannot be made to lie along the flange 44 it is attached by screws 412 and 413 to an adaptor comprising a clamping plate 411 and a plate 40 having tongues 38 and 39 which are secured to the lath by stirrups such as 48, the plate 40 being offset from the tongues 38 and 39 to accommodate the tongue 24 and rotatable relative to the latter and the clamping plate 411.
Patent GB-360805-A (GB)
Title: Improvements in or relating to the steering gear of motor vehicles
IPC: B62D5/06
Filed: 1931-04-27
Abstract: 360,805. Motor vehicle steering-gear. KNORR-BREMSE AKT.-GES., 9, Neue Bahnhofstrasse, Lichtenberg, Germany. April 27, 1931, No. 12417. Convention date, Jan. 21. [Class 79 (v).] Comprises servomotor steering-gear in which a fluid-pressure cylinder 1 acts on the steering lever 4, the passage of fluid to,and from the cylinder being controlled by valves 5, 6 operated respectively by sleeves 9, 10 slidable under spring control on the steering shaft 8, the displacement of the sleeves along the shaft being effected by the rotation of the hand-wheel 7. The hand-wheel has a lostmotion connection to the steering shaft, which connection may be of the pin-and-slot kind shown on the hub of the hand-wheel. The sleeves 9, 10 have pin-and-slot connections 22, 23 with the steering shaft 8 so that they can slide but not rotate thereon, and they are pressed upwards by springs 20, 21 abutting against the pins 22, 23. The upper ends of the sleeves have cam edges engaged by a projection 11 on the hand-wheel, this projection normally lying in a recess formed by the opposite faces of the sleeve cams. When the handwheel is rotated in either direction it moves slightly on the shaft and depresses one of the sleeves and this sleeve acts through a flange at its lower end on a valve spindle 12. The spindle 12 is shown in its normal position in Fig. 2 in which the exhaust valve 17 is closed and an inlet valve 13 is open so that compressed air can enter at A from a receiver (not shown) and pass through the valve 13 and an outlet B to the steering cylinder 1. The valves 13 in both casings 5, 6 are normally open so that both ends of the cylinder 1 are under pressure. When one of the valve spindles 12 is depressed by its sleeve 9 or 10 the corresponding valve 17 is opened and 13 is shut so that the corresponding end of the cylinder 1 is relieved of pressure and the pressure at the other end moves the piston and operates the steering gear. When the movement of the hand-wheel stops the steering shaft 8, which has been " following up," catches up to the hand-wheel, the sleeve which has been depressed is released and its valve mechanism is returned to its normal position, so that both ends of the cylinder 1 are under pressure again, and the steering gear is held in its new position until the handwheel is again rotated.
Patent GB-1044457-A (GB)
Title: Open delta magnet
IPC: H01F7/12
Filed: 1965-03-24
Abstract: 1,044,457. Electromagnetic brakes. WESTINGHOUSE ELECTRIC CORPORATION. March 24, 1965 [May 5, 1964], No. 12451/65. Heading F2E. [Also in Division H1] An electromagnet, particularly for use in a brake, comprises a magnetic .core 30 having a pair of wound inner legs 34, 36 and a pair of outer legs 32, 38, the windings 40, 42 being connected to a three-phase supply in an open delta arrangement. The core 30 and armature 18 are preferably pivoted at 26, 28. The flux is substantially constant with respect to time and is evenly distributed about the face 24.