baber/WOPTO huggingface dataset:
Patent GB-1412309-A (GB)
Title: Load-dependent brake pressure regulator
IPC: B60T8/18
Filed: 1973-01-11
Abstract: 1412309 Load responsive braking WABCO WESTINGHOUSE GmbH 11 Jan 1973 [12 Jan 1972] 1563/73 Heading F2F A load responsive valve assembly regulating the pressure to rear wheel cylinders of a vehicle is responsive to pressure applied to the front wheel cylinders and allows for maximum braking pressure to be developed at the rear wheel cylinders in the event of failure of the front wheel cylinder pressure. During normal braking hydraulic fluid in a first circuit from a pressure source passes from an inlet 6 of a first valve housing section 1 to an outlet 66 connected to the front wheel cylinders of a second housing section 2 by way of channel 59, and limiting valve 44, 45, and the rear wheel cylinders are fed with hydraulic fluid in a second circuit from an outlet 66 by way of inlet 47, channels 53, 55, limiting valve 14, 19, and channel 63. The movement of valve head 19 is controlled through a push rod 24 by a lever 29 sensing changes in vehicle loading. If the front circuit pressure fails the rear circuit pressure acts on a piston 16 to move it rightwardly so that a circlip 10 holds open the valve 14, 19 so that the rear pressure is not subject to limitation. If the rear circuit fails the front circuit pressure acts to open valve 44, 45 through circlip 72 and piston 69 thereby transmits restricted brake pressure. If the load transferring linkage fails push rod 24 is moved leftwardly by a return spring 27 and opens, through a conical part 26 thereof, an emergency valve 58, valve 14, 19 being closed by a spring 25. On brake application, the rear circuit pressure passes via channel 54 and valve 58 to outlet 66 by passing valve 14, 19.
Patent GB-200852-A (GB)
Title: Process of treating ores and concentrates to convert them into sulphates
IPC: C22B1/06
Filed: 1922-01-18
Abstract: 200,852. Read, J. B., and Coolbaugh, M. F. Jan. 18, 1922. Sulphatizing.-In a one-step process for subjecting ores, concentrates and the like to a sulphatizing roast, the materials roasted are moved concurrently with the air and roast gases in the roasting zone, the products of the reaction in the roasting zone being metallic oxides, sulphur trioxide, and sulphates. The temperature is lowered for the further formation of sulphates in subsequent zones. The temperature in the hottest zone may be 600-1000‹ C. and in subsequent zones 380-850‹ C. Ferric oxide and basic ferric sulphate may be formed and act catalytically to increase the formation of soluble sulphates. The process is applicable to sulphide ores; or oxide, carbonate, and like ores may be mixed with sulphur or sulphides and treated according to the process. Ferric oxide may also be added. Sulphur dioxide and trioxide may be introduced from an independent source; or sulphur dioxide may be brought into contact with ferric oxide under conditions to form sulphur trioxide which is then introduced to the ores to be sulphatized. The furnace used mav be muffle or otherwise, and may be horizontal or inclined; or the ore, if very fine, may be blown upwards with the gases in a vertical furnace. The ore may be continuously stirred to ensure efficient contact with the gases.
Patent GB-346760-A (GB)
Title: Safety coupling device for coupling animals to carts and like purposes
IPC: A01K1/064
Filed: 1930-01-16
Abstract: 346,760. Securing animals to vehicles and stalls. WENDT, A., Hohenselchow, Kreis Randow Pommern, Germany. Jan. 16, 1930, No. 1613. [Class 62.] The coupling- bar a, which is readily detachable when turned into an inclined position, carries two pivoted links b, both engaging the end link c of the securing chain, this link being formed with cheeks d. This arrangement prevents accidental turning of the bar a and release of the animal when the chain becomes slack.
Patent GB-864547-A (GB)
Title: Manholes, surface boxes, fire hydrant boxes and the like
IPC: E02D29/14
Filed: 1959-01-16
Abstract: 864,547. Road surface boxes. JEFFERY, H. S., and STOKES CASTINGS Ltd. Dec. 23, 1959 [Jan. 16, 1959], No. 1621/59. Class 107 A non-rocking road surface box cover 6 is formed at its ends with downwardly extending wings or flanges 8 of part circular or part elliptical profile and at its sides with flanges 11 which are slightly concave in profile. The seating surface formed on the inwardly directed flange 5 on the frame 4 is straight at its sides and concave at its ends to form a mating surface for the flanges 8 and a continuous resilient seal 7 is provided between the engaging surfaces. The box is mounted in the roadway with its ends transverse to the direction of traffic flow.
Patent GB-969217-A (GB)
Title: Method and device for evaporating liquefied gases with low boiling-points
Inventor: WIT GERARD FREDERIK DE
IPC: F17C9/02
Filed: 1961-01-13
Abstract: 969,217. Revaporizing liquefied gases. PHS VAN OMMEREN N.V. Jan. 13, 1961, No. 1623/61. Heading F4P. In revaporizing liquefied gas, e.g. liquid methane, by passing it through a duct 1 in heat exchange with counterflowing ambient air traversing a duct 2, the warm end of the latter, wherein the water vapour and carbon dioxide content of the air is congealed, is divided into branch ducts 3a, 4a and 3b, 4b having outlet valves 9, 10 and being traversed by branches 1a, 1 of the duct 1 controlled by valves 7, 8 whereby one set of branch ducts is on stream whilst the other is being derimed. As shown, branch ducts 3b, 4b are being freed of water and carbon dioxide ice which are removed through a duct 11 and the open valve 10, respectively. In a modification for use when the ambient air is at about 0‹ C. the duplication of ducts is confined to section 4 and the temperature of the incoming counterflowing air is increased by external heating means 14, Fig. 3 (not shown).
Patent GB-193616-A (GB)
Title: Improvements to children or baby carriages
IPC: B62B9/12
Filed: 1922-01-19
Abstract: 193,616. Wilson, J. W., and Wilson, A. Jan. 19, 1922. Perambulotors.-A convertible carriage. for accommodating a child in recumbent or sitting position has its back arranged to be movable into either a forwardly or rearwardly inclined position. The movable back D has at each side top and bottom locking members F engaging catches G in the body A, to which it is connected by American leather E or the like. The upper members F may be released to allow a rearward inclination as shown in Fig. 2, in which case a loose seat may be provided. When the lower members F, Fig. 5, are released, the back may be held by struts, H, and a folding cushion may be laid in the carriage body. Alternatively a false bottom may 'be provided, comprising two fixed parts L, P, Fig. 2, and two hinged parts M, N.
Patent GB-1122819-A (GB)
Title: Improvements in or relating to folding dies
Inventor: HINDS RONALD
IPC: H01B13/10
Filed: 1966-01-13
Abstract: 1,122,819. Skelping. BRITISH INSULATED CALLENDER'S CABLES Ltd. 12 Jan., 1967 [13 Jan., 1966], No. 1672/66. Heading F2P. [Also in Division B8] A die for folding a longitudinally advancing strip of material into tubular form comprises a series of spaced plates 3a-3j, Fig. 1, having axially aligned circular die apertures that progressively decrease in size from a maximum at plate 3a to a minimum at plate 3j, there being a blade 16 that projects into several of said apertures, but not at least the two smallest 3i, 3j; the side walls of the blade 16 converging towards one another as its end nearest the die outlet is approached, the said blade guiding the longitudinal edges of the strip and ensuring that the angular position of the overlap relatively to the die is positively determined. Fig. 10(v) is a cross-section through the entrance end of plate 3e showing how the plate 16 is used to cause one longitudinal edge of the strip S to be folded in at a higher level than the other longitudinal edge so as to ensure correct overlap. Fig. 10 (vi) is a cross-section through the exit end of the plate 3e showing how the upright portion 17 has narrowed. The upright walls of the portion 17 also serve to keep the longitudinal edges of the strip S from moving beyond predetermined limits around the axis of the aperture 7e, as the strip S is being wrapped around a conductor C also passing through plates 3a-3j. In Fig. 1 the plates 3a-3j are held in a housing 1 by a pair of dowels 5; the housing 1 may be cooled by circulating a coolant such as water or air through the passage 6 ; a spring blade 28 is used to bias the blade 16 into the plates 3a- 3e; the apertures in the plates 3f-3j may be lined with bushes of tungsten carbide or other suitable wear-resistant material; and the plates 3i-3j may be out away to accommodate a heated wheel on which the overlapping parts of the folded strip pass as they leave the die.
Patent GB-711819-A (GB)
Title: Apron for digging and carrying scraper and actuating mechanism therefor
Inventor: ADAMS WILLIAM JOSEPH
IPC: E02F3/64
Filed: 1952-01-21
Abstract: 711,819. Bowl-type scrapers. EUCLID ROAD MACHINERY CO. Jan. 21, 1952, No. 1681/52. Class 68(1)  In a bowl-type scraper pivotally connected by a drawbar 50 to a tractor, the hydraulically operated means controlling movement of the front apron 53 comprise a cylinder 67 secured on the drawbar, a piston 67c projecting forwardly from the cylinder and provided with a plurality of rotatably mounted sheaves 89, 90, 91, a fixed head 67b with a similar sheave arrangement 92, 93, 94 secured to the drawbar at the rear of the cylinder, and a cable 95 reeved around the sheaves. The cable has one end 95a secured to the drawbar and the other to the apron at 96 in such a manner that the cable is tangential to the are of movement of the apron, when said apron is in a lowered position and radial to said arc when the apron is in the raised position. Specifications 711,820 and 711,821 are referred to.
Patent GB-936386-A (GB)
Title: Pellets for supplying biologically active substances to ruminants
Inventor: STEPHENSON DOUGLAS
IPC: A61K9/00
Filed: 1959-01-16
Abstract: A pellet for administration to a ruminant to supply it with a biologically active substance for an extended period of time, said pellet having a density and weight which relatively permanently retains it in the rumeno-reticular sac of the animal after administration and lodgement in the sac and embodying a core of density at least 3.5 around which there is an outer layer containing the biologically active substance which is released from the pellet into the contents of the sac over the extended period of time.  The core is preferably reduced iron and may be granulated with, e.g., 10% aqueous gelatine, starch mucilage or a solution of a resin.  A metallic oxide such as cupric oxide may also be present.  The outer layer may contain hormones, antibloat agents, antibiotics, anthelmintics, antihistaminics, systemic insecticides and trace elements such as cobalt, copper, manganese, molybdenum, iron, iodine, boron and vanadium.  The core may be coated by dipping or moulding the outer layer around the core.  Specification 866,924 is referred to.
Patent GB-1450472-A (GB)
Title: Force balance differential pressure gauge
IPC: G01L7/00
Filed: 1974-01-15
Abstract: 1450472 Measuring differential pressure electrically GENERAL SIGNAL CORP 15 Jan 1974 [15 Jan 1973] 01814/74 Heading G1N A force-balancd differential pressure gauge includes a casing 50 with first and second pressure chambers 62, 64 and a bellows 72 sensing the pressure difference therebetween, a differential transformer 84 with a core 82 movable by the bellows and feeding a position error signal to a coil 100 on a sleeve 102 disposed in the air-gap 103 of a magnet assembly 104, whereby the bellows is restored to its rest position and the current supplied to the coil provides a measure of the pressure difference. The coil current is fed over a two-conductor transmission line which also carries the supply voltage from a remote measuring station having a D.C. supply connected to terminals 200, 202. The feedback circuit may include a capacitor 113 providing integration of the position error signal at the input of amplifier 110 whereby the bellows is restored with a zero steady-state position error. Diodes 210, 212, 230 and transistor 214 are arranged to provide regulated bi-polar voltages for the amplifiers 112, 114, 116. Amplifier 114 is connected as a Colpitts oscillator to energize the transformer primary winding at 2 kilohertz.
Patent GB-1129964-A (GB)
Title: Synthetic lubricant composition of improved oxidation stability
Inventor: FORBES ALAN DAVID
Filed: 1965-01-15
Abstract: 1,129,964. Lubricants. BRITISH PETROLEUM CO. Ltd. 22 Dec., 1965 [15 Jan., 1965], No. 1868/65. Heading C5F. A lubricant comprises (i) a liquid, neutral ester base oil having at least two ester linkages per molecule prepared from (a) a mono- and/or polyhydric C 5 -C 15  alcohol having no #-hydrogen atoms with respect to any -OH group and (b) a C 2 -C 14  mono- and/or polycarboxylic acid and (ii) 1-15 p.p.m. of one or more compounds which are organic metal complexes or salts which oxidize or reduce the organic radicals formed during oxidative degradation of esters. C 8+  Acid salts and complexes of the transition metals, cerium and copper are preferred as component (ii), e.g. manganous and cobaltous acetylacetonates, cupric phthalocyanine and cupric stearate. Specified esters are trimethylolpropane tricaprylate and the reaction product of caprylic acid, trimethylol propane and sebacic acid. The composition may also contain metal deactivators, e.g. benzotriazole, amine-antioxidants, e.g. p, p<SP>1</SP>-dioctyldiphenylamine, and other conventional additives.
Patent GB-1185261-A (GB)
Title: Hydraulic Control Means for an Assembling and Welding Apparatus
Inventor: ZERGON HANS-JOACHIM
IPC: F15B11/00
Filed: 1968-01-12
Abstract: 1,185,261. Welding by fusion. PKM HYDRAULIK KARL - MARX - STADT - VEB. 12 Jan., 1968, No. 1924/68. Heading B3R. [Also in Division F1] A pipe length 98, Fig. 3 to be welded to a pipe 99 is clamped by an hydraulic piston and cylinder device 20 and is aligned by a similar device 21 located in the lower limb of a yoke 97 supported by a vertically adjustable piston and cylinder device 42 also located in said limb; the device 20 being supplied firstly by a variable delivery pump 2, Fig. 1 which delivers through a line 4, a solenoid valve 40, a check valve 14 and an hydraulically actuated multi position valve 6 and secondly from a reservoir 32 which discharges through a solenoid valve 30 and a check valve 26; the reservoir 32 having first been charged by a pump 22, and the ends of the hydraulic valve 6 having been supplied with actuating fluid by a control pump 74, Fig. 2 which delivers through lines 75, 87 and an energized solenoid valve 91, the device 21 being supplied firstly by a variable delivery pump 3 a line 5, check 15, an hydraulic valve 7 and secondly from a reservoir 33 charged by a pump 23 and delivering through an energized solenoid valve 31 and a check valve 27; the hydraulic valve 7 having been actuated by fluid from said control pump 74 passing through lines 75, 87, 90, and an energized solenoid valve 92, and the underside of the device 42 being firstly supplied by a variable pump 48, which delivers through an hydraulic valve 45, a line 44, a check valve 49 and a releasable check valve 50 and secondly by a pump 57 which delivers through a line 59, a check valve 58 and check valve 50 thereby supporting the weight of the yoke; the hydraulic valve 45 being actuated by fluid from the control pump 74 which delivers through a check valve 83 and an energized solenoid valve 84, and the releasable valve 50 being actuated by fluid directed through lines 67, 68 branching from lines 4, 5 check valves 69, 70, a throttle valve 66, an energized solenoid valve 64 and a line 63 whereby pressure built-up on the underside of device 42 is relieved through a pressuremaintaining valve 52 and a line 43 leading either to the upper end of 42 or leading through valve 45 to a return reservoir. During downward movement of device 42 valve 50 is actuated by fluid directed by pump 48 through valve 45 in position II, line 43, check valve 72, line 71, solenoid valve 64 and line 63. In operation and with all pumps being driven by electric motors 1, 47, 56 and with all multi-way valves in rest position O solenoids 91<SP>1</SP>, 30<SP>1</SP> are simultaneously energized thereby moving valves 6, 30 to position I and resulting in fluid being supplied to the underside of device 20 by pump 2 and reservoir 32. When pressure builds up at the end of the stroke pressure switch 10 de-energizes solenoid 30<SP>1</SP> and so isolates reservoir 32 whilst the pump 2 idles. Solenoid valves 31, 92 one next energized to supply device 21 in a manner similar to that for device 20.
Patent GB-537089-A (GB)
Title: Improvements in or relating to radio navigation devices
IPC: G01S1/02
Filed: 1940-01-31
Abstract: 537,089. Directive wireless systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 31, 1940, No. 1934. Convention date, Jan. 31, 1939. [Class 40 (v)] Signal voltages from a radio compass are combined with voltages derived from a magnetic compass in a cathode ray indicator to give traces which represent both compass headings and also the bearing of the radio station ; the arrangement can be used to give the instantaneous position of a moving craft by the intersection of two bearings taken on different radio transmitters. As shown in Fig. 1 an alternating voltage is applied to two potentiometers 5 and 7 from a source 1. Each potentiometer is of the form shown in Fig. 3, and comprises two pairs of figure-of-eight contact rings 35, 37 and 39, 41, which are traversed by a rotatable resistance bar. The bar of one potentiometer 5 is driven by a shaft 47 from the magnetic-compass repeatermotor 49, whilst the bar of the other potentiometer 7 is similarly coupled to the self-orientated loop of a radio compass 51. In these circumstances the voltages applied from the potentiometer contacts 9, 11, 13, 15 and 17, 19, 21, 23 to the deflecting plates of a cathode ray tube 33 are functions of the angular position of the bar, and will, as the switch N.W.S.E. is reversed by a motor 35, produce semi-permanent traces 53, 55 on the fluorescent screen, corresponding to the radio and magnetic compass headings respectively. These voltages are combined with those derived from two other similar potentiometers to give a third trace 73, Fig. 2 (not shown) indicating the radio bearing relative to a meridian. If the source 1 is a D.C. source the radio trace-lines will be replaced by three " spots located at different radial distances. By using two different indicators giving the bearings of two separate stations, the intersection of the two traces will give a "fix" of the craft's position at any time. Specification 517,826 is referred to. The Specification as open to inspection under Sect. 91 refers to a modification in which light beams, circular shutters, and photo-electric cells replace the resistances and circular contacts of Fig. 3. This subject-matter does not appear in the Specification as accepted.
Patent GB-413584-A (GB)
Title: Improvements in or relating to hygrometers
IPC: G01N19/10
Filed: 1934-01-19
Abstract: 413,584. Hygrometric apparatus. BRISTOL'S INSTRUMENT CO., Ltd., 144, Pomeroy Street, New Cross, London.- (Assignees of Bristol, H. R.) Jan. 19, 1934, No. 1936. Convention date, Jan. 26, 1933. [Class 97 (iii).] A strip of hygroscopic material in arched conformation has its ends pivoted to a non-hygroscopic block and is adapted to change its curvature with variations in humidity. The hygroscopic element may comprise a strip of wood freed from sap, compressed, and cut with the fibres parallel to the shortest dimension and with the length of the strip parallel to or at right angles to the radius of the growth rings. In the form shown the strip 13 is pivoted at 14 and 15 to a block 12 fixed by a bracket 11 to the base plate 10. A link 21 is connected at one end to the centre of the strip 13 and at the other end to a bell crank 22, one arm 23 of which forms a pointer moving over the scale 24.
Patent GB-282998-A (GB)
Title: Improvements relating to book-markers
IPC: B42D9/00
Filed: 1927-01-22
Abstract: 282,998. Highfield, F. G. Jan. 22, 1927. Bookmarkers.-A bookmarker consists of a band or strip 1 of elastic or like material stiffened or reinforced at one or both ends so that the end or ends can be folded back upon the band and inserted in a small pocket or pockets formed in the edge of the cover of the book. 'The ends of the band preferably reinforced by attaching thereto pieces 2 of millboard, celluloid, &c., and the pockets may be formed by cutting a slit 5 in the liner or paper binding 4 overlapping the edge of the cover 3 and prising the binding material upwardly. The pockets may be reinforced by strips of passepartout or the like secured beneath the binding material 4. The flexible band 1 may be used in known manner to support a memorandum card 8 provided with slits 9 through which the band is threaded.
Patent GB-1453796-A (GB)
Title: Control valve for a diaphragm operated gas valve
IPC: F16K31/70
Filed: 1974-01-16
Abstract: 1453796 Valves HONEYWELL Inc 16 Jan 1974 [16 Jan 1973] 01953/74 Heading F2V [Also in Division G3]  A valve comprises a valve member 34 carried on a cantilever portion 30a of a flexible arm 30 secured to the housing at one end. The valve member normally closes a seat 22 and when the free end of the arm 30 is moved downwards the valve member first closes a seat 25 and then pivots about the latter seat to open seat 22. In use the valve member is secured at its periphery to the housing to form a chamber which  is connected via passage 28 to the operating chamber 18 of a diaphragm actuated gas valve 16 so that normally the chamber 18 is connected to the gas outlet 13 via passage 26 and seat 25 and valve 16 is closed but when the valve member 34 is operated the chamber 18 is connected to the gas inlet 12 via passage 23 and seat 22 and the valve 16 is opened. Valve member 34 is operated by a temperature responsive bellows 45 acting via a lever mechanism 43, a slide rod 41 and a snap-acting spring 32 acting on the end of the flexible arm 30. When the gas valve 16 is open the pressure in the chamber 18 is regulated by a valve 39 to maintain the outlet pressure constant.
Patent GB-793832-A (GB)
Title: Improvements in and relating to nut and bolt clamping devices
Inventor: STONE WALTER LOCKEY
IPC: F16B5/02
Filed: 1956-01-20
Abstract: 793,832. Bolting. HUME PIPE & CONCRETE CONSTRUCTION CO, Ltd. Nov. 26, 1956 [Jan. 20, 1956], No. 2009/56. Class 89(1) [Also in Group XXII] A device for clamping together two plates, flanges &c. a, g, Fig. 1, comprises a bolt c secured to one plate &c. a by a nut o and having a head d larger than the hole in plate a and smaller than the hole in plate g. A two-part washer h is positioned under the bolt-head after assembly of the plates, and the nut is tightened. The washer has bevels k, m engaging countersinks in plate g and the bolt-head, to urge the washerparts against the bolt-shank. In another arrangement, the washer-parts are extended by shrouds p, q, Fig. 3.
Patent GB-210967-A (GB)
Title: Improvements in or relating to curtain rings and the like
IPC: A47H13/02
Filed: 1923-01-23
Abstract: 210,967. Coopper, H. Jan. 23, 1923. Pins, dress and like.-A curtain is attached to a curtain ring by a short helix of wire &c. which loosely surrounds the ring, one or both ends of the helix being pointed to enter the curtain, after which the helix is turned until as many coils as desired are threaded through the material. The pointed ends are preferably bent slightly outside the general circumference of the spiral, one end of which may be bent or provided with a head to form a stop.