baber/WOPTO huggingface dataset:
Patent GB-1472888-A (GB)
Title: Safety cut-off valves for gas supply systems
IPC: F16K17/32
Filed: 1975-09-22
Abstract: 1472888 Valves BRYAN DONKIN CO Ltd 22 Sept 1975 [4 Oct 1974] 43144/74 Heading F2V A safety cut-off valve for a gas supply system has a closure member 16 latched in an open condition, the latching mechanism being responsive to mass flow through the valve, i.e. to flow velocity and to absolute pressure. The latching mechanism comprises a pivoted lever 19 engaging the closure member and held in the position shown by a horseshoe magnet 84 which acts on a soft-iron armature, 96 mounted on the lever, through a pair of soft iron plugs 92 (Fig. 4). A diaphragm 58 controls the position of the magnet 84. This diaphragm is made sensitive to flow velocity by subjecting it to the pressure on either side of an orifice plate 76. A rolling diaphragm 38 provides the response to absolute pressure: it is adjustably loaded by a spring 48 and acts on the diaphragm 58 by controllng the loading effect of spring 68. When the predetermined mass flow condition is exceeded the magnet 84 rises and engages a soft iron keeper 98 (Fig. 4) and in doing so effectively short-circuits the plugs 92 so that immediate release of the latch takes place permitting the closure member to close under the influence of a torsion spring 28. The pivot 17 (or the closure member) is axially slidable against a spring 15, Fig. 4, so that on pressing it inwards hexagonal portions engage hexagonal holes in the closure member for re-setting the latter by rotating the shaft. In an alternative embodiment, Fig. 6 (not shown), the magnetic latch is replaced by a mechanical latch embodying a spring-loaded "over-centre" link mechanism. In a modification, Fig. 7, which can be applied to either of the above embodiments, the diaphragm 58 is connected to the lower end of the rod 42 loaded by the spring 48 and also to a bellows 102 to reduce the pressure-effective area of the diaphragm 58 in the chamber 54 thus making the pressure-effective areas of the diaphragm unequal. This produces the desired response to absolute pressure and velocity of flow. In other embodiments pistons can be used instead of diaphragms and the pressure tapping points could be taken from either side of the seat 18 as shown chain-dotted in Fig. 1, and the gauge pressures could be taken from a gas main to which the valve is connected.
Patent GB-1272166-A (GB)
Title: Sealing member
IPC: E01C11/10
Filed: 1970-09-09
Abstract: 1,272,166. Expansion joints. ACME HIGHWAY PRODUCTS CORP. 9 Sept., 1970 [10 Sept., 1969[, No. 43191/70. Heading E1B. An elastomeric sealing strip 10 comprises a plurality of spaced tread members 30a-f and an internal supporting truss structure, the spaces 31 between the webs being approximately equal to the width of the treads. The intermediate treads 30b-e are slightly lower than the edge treads, and the sidewalls 16 and 18 are adhered to the slabs 12 by adhesive 14. Other embodiments disclose modified truss structures. The thickness of the truss members is approximately half the treadwidth.
Patent GB-432161-A (GB)
Abstract: 432,161. Cylinders. SULZER FRERES SOC. ANON., Winterthur, Switzerland.- (Assignees of Morf, E. ; 135, Muhlebachstrasse, Zurich, Switzerland) Nov. 28, 1934, No. 34161. Convention date, Dec. 21, 1933. [Class 7 (ii)] In a two-stroke engine cylinder one or more auxiliary exhaust ports 11 which are opened simultaneously with, or before, the main exhaust port 9, lead through a chamber 24 and a throttling device 12 to the main exhaust conduit 10 ; by this means scavenging is improved and the consumption of scavenging air is reduced. The throttling device may be adjustable, preferably in conjunction with variation of the scavenging pressure or the load, or replaced by an exhaust-gas turbine. In the modification shown in Fig. 3, having opposed inlet exhaust ports, auxiliary exhaust ports 22 leading to chamber 24 are opened simultaneously with the main exhaust ports 23.
Patent GB-1364079-A (GB)
Title: Fastening device and assembly of a tubular member secured in an apertured panel with the aid of the fastening device
IPC: F16B9/02
Filed: 1971-09-16
Abstract: 1364079 Stud and socket fastenings F T PRODUCTS Ltd 18 Sept 1972 [16 Sept 1971] 43317/71 Addition to 1307066 Heading E2B A fastening device for retaining a resilient tubular member 28 in an apertured panel 30 comprises an apertured body 11, a circumferential side 16 extends into the aperture of the body and a sleeve 25 extends from an end of the body, the internal surface of the sleeve being cylindrical and forms a continuation of the aperture in the body and the external surface being frusto conical and wherein the rib is interrupted by at least one gap to allow for expansion of. a part of the tubular member into the gap or gaps. The device is made from a plastics material which is difficult to deform and so that a skirt portion 14 is slightly flexible. The tubular member is also made of plastics and is slightly flexible and resilient. In a modification shown in Fig. 6 the body portion 41 has the interrupted rib and an external annular portion 47 with peripheral lips 48, 49.
Patent GB-1075445-A (GB)
Title: Improvements in or relating to control systems for internal combustion engines
Inventor: HALLSWORTH ARNOLD
IPC: F02D1/00
Filed: 1963-11-02
Abstract: 1,075,445. Control of D.C. motors; transmitting mechanical power. BRITISH CRANE & EXCAVATOR CORPORATION Ltd. Oct. 27, 1964 [Nov. 2, 1963], No. 43350/63. Addition to 904,764. Headings H2H and H2J. The control system described in Specification 904,764 is modified by the provision of potentiometer 33 which is adjusted by member 34 on remote control unit (21) a further potentiometer 30 being driven by reversible actuator motor (4). The potentiometers are connected to differential amplifier 32 for energizing one or other of the contactors 5, 6, for the motor (4) when the potentiometers are unbalanced. The throttle for prime mover (20) is thus driven to the position called for by the setting of the member 34. Limit switches 18 are associated with actuator motor. The member 34 is spring- loaded to the engine-idling position to which the system is returned if the wiring is damaged.
Patent GB-1328273-A (GB)
Title: Shuttleless looms
IPC: D03D47/00
Filed: 1970-09-11
Abstract: 1328273 Weft selectors OFFICINE GALILEO SpA 11 Sept 1970 [20 Sept 1969] 43503/ 70 Heading D1E A weft selector in a shuttleless loom in which hairpins of weft are inserted with their legs in non-adjacent sheds has a selector device on both sides of the loom, and weft is inserted alternately from opposite sides of the loom by rapiers 66D which transfer a loop of weft from a forked to a hook portion of each of them at the middle of the shed. Each selector device 36 has corresponding eyelets 42-48 and grippers 22-28 in horizontally slidalble arms mounted in a vertically movable box 30 controlled from a dobby pattern mechanism 54 so that the selected weft is presented to a sickle shaped arm 8 which lowers it into the path of the rapier 66D. As the first leg of each hairpin is inserted, the corresponding gripper 22-28 releases the weft end as the weft loop is transferred at the middle of the shed Fig. 4. On insertion of the next leg of the same hairpin, the gripper moves to grip the weft as the loop is transferred, and the weft is simultaneously cut between the gripper and the selvedge, Fig. 10.
Patent GB-1518624-A (GB)
Title: Infrared burner plates for gas combustion devices
IPC: F23D14/14
Filed: 1976-10-20
Abstract: 1518624 Infra-red burner plate RINNAI KK 20 Oct 1976 [20 Oct 1975] 43616/76 Heading F4T An infra-red burner phase 1 comprises adjacent recesses 2, a combustion duct 3a in the centre of each recess, a ring of combustion ducts 3b, and combustion ducts 3c outside of the ring. Each recess is formed with four triangular slanting surfaces 6, with the deepest part of the recess at its centre, and the depth of the recess is not greater than twice that of the diameter of a duct which is substantially 1 mm. The plate is composed chiefly of ceramics.
Patent GB-928586-A (GB)
Title: Improvements in and relating to grinding machines
IPC: B24B49/00
Filed: 1961-12-06
Abstract: 928,586. Caliper gauging. LANDIS TOOL CO. Dec. 6, 1961 [Dec. 16, 1960], No. 43669/61. Class 106 (2). [Also in Group XXIII] A grinding-machine (see Group XXIII) incorporates a sizing device for each ground portion of the work whereby size is maintained between tolerance limits, each sizing device having high and low limit contacts associated with the control whereby actuation of the high limit contact of both devices or the low limit of either device stops the feed. If two sizing devices C 1 , C 2  only are employed these are preferably associated with the two end portions of the work; these may be ground to different diameters and widths by correspondingly different wheels 15, 18. The sizing devices comprise calipers which are applied to the work manually or automatically. They are each connected to a visual gauge G 1 , G 2  indicating high and low readings A and B, respectively, and each gauge controls high and low contacts CR 4  and CR 3 , respectively, the two limit contacts being connected in parallel whilst the low limit contacts are in series with each other and also with each of the high limit contacts. The gauge contacts CR 3  and CR 4  are closed when over-sized work is calipered but, as grinding progresses, G 1  will indicate when the high limit on its portion of the work is reached and its contact CR 4  will open, but a control valve relay, 51CR, retains a control valve 35 in the feed position until G 2  also indicates that the high limit of the second portion of the work has been reached and its control CR 4  is then opened, releasing the control valve relay so that the valve 35, moving under spring-pressure, admits pressure to the opposite side of a piston 30 to effect the retraction of the wheels from the work. If one portion of the work reaches its low limit before the other is ground to the high limit, one of the low-limit contacts CR 3  will similarly open the relay 51CR and will thus stop further grinding. The additional wheels 16, 17 may be similarly controlled by caliper-type sizing devices and gauges, or any practicable number of wheels may be so arranged and controlled that grinding ceases when all axiallyspaced portions of the work have been ground within their upper tolerance limits, or when one part has reached its lower tolerance limit.
Patent GB-441367-A (GB)
Abstract: 441,367. Electromagnetic sound recording and reproducing apparatus. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. May 28, 1935, No. 15509. Convention date, June 9, 1934. [Class 40 (ii)] An electromagnetic sound recording and /or reproducing device comprises a casing made in two parts 1, 2 carrying electromagnets 3, 4 and having a channel 8 therebetween adapted to guide the sound record carrier. Attached to the part 1 are bearings 9, 10 in which a spindle 5 provided with a head 6 is rotatably mounted, the spindle also having a screwthread 11 for engagement with a threaded bushing 12 secured to the part 2. Spindle 5 and part 1 are prevented from moving longitudinally of each other, e.g. by causing one of the bearings 9, 10 to project into an annular groove in the spindle so that rotation of the spindle causes the part 2 to be displaced along the part 1 so as to vary the distance between the cores of the magnets 3, 4. The front contacting edges of the parts 1, 2 are provided respectively with a main scale and a vernier scale as shown at 7.
Patent GB-971374-A (GB)
Title: Automatic airflow control for combustion apparatus
Inventor: SPENCER DENNIS ARTHUR
IPC: F23D11/00
Filed: 1960-12-23
Abstract: 971,374. Valves. THOMAS POTTERTON Ltd. Dec. 22, 1961 [Dec. 23, 1960], No. 44209/60. Heading F2V. [Also in Division F4] A burner air supply regulator comprises a freely pivoted valve plate 7 mounted in the air intake opening 6 of a casing 5, the plate 7 being biased towards its open position and being partially closable under air pressure caused by excessive uptake draught. The cylindrical casing 5 is rotatable about its axis relative to the burner casing 1 so that the effective air inlet opening may be varied, e.g. from x<SP>1</SP> in Fig. 2 to x<SP>2</SP> in Fig. 3. The valve plate 7 is freely pivoted at 8 and is biased by an adjustable counterweight 10, an adjustable stop 9 being provided to prevent complete closure of the valve. Alternatively or in addition the valve plate may be apertured.
Patent GB-1128292-A (GB)
Title: An improved container for fluids and the like
IPC: B65D43/02
Filed: 1965-10-19
Abstract: 1,128,292. Containers for beverages and the like; container closures. REXALL DRUG & CHEMICAL CO. 19 Oct., 1965 [28 Oct., 1964], No. 44292/65. Headings B8D and B8T. [Also in Division A4] A container of ovate transverse horizontal cross-section has a recess 18 in each of its side walls 15 enabling the user to hold the wider end wall of the container and use the recesses as finger grips when pouring out the liquid contents of the container through a spout 33 formed on a cover 13. The upper edge of the side and end walls are strengthened by means of a flange 20 supported by gusset plates 21, the flange having a vertical section 22 on each side to receive the shafts (26), Fig. 4 (not shown), of a pivoted handle 12 in cut-out portions (23). Under stress the handle, which may be of polyethylene, is held in the sections 22 by means of trunnions (27) which engage the container side walls, Fig. 9 (not shown). The lid 13 has a peripheral channel of inverted U- shape in cross-section which engages the upper edge of the container side and end walls. The recesses 18 diminish in depth towards the base of the container.
Patent GB-1089090-A (GB)
Title: Method of making pastry
Inventor: LUEDTKE RALPH EDWIN
IPC: A21D13/08
Filed: 1966-10-04
Abstract: A method of making a pastry dough comprising flour and water and containing a plastic shortening agent in an amount of 50-80% by weight of the total flour in said dough, comprises the steps of combining 25-45% of the flour with the total water, which may include ice particles, the water being at a temperature of not more than 40 DEG F.; mixing said combination until gluten has substantially developed; adding the remaining ingredients including shortening and flour; mixing to form a dough; and holding the dough at a temperature below 40 DEG F. but above the freezing point of the dough for at least 2 hours.
Patent GB-1378038-A (GB)
Title: Coin handling system
IPC: G07D9/00
Filed: 1972-09-27
Abstract: 1378038 Pneumatic transfer of coins KEENE CORP 27 Sept 1972 [29 Sept 1971] 44614/72 Heading B8A Coins are transferred from a receptacle in a vehicle to a depository by suction through a hose which leads to a coin decelerator comprising a cylinder with perforated walls so that the air entraining the coins is quietly dissipated. The coins then pass through a coin sorter to the depository. In the interests of security, the end of the hose which is releasably connected to the receptacle is formed as a probe comprising a pair of concentric tubes, each having an aperture in its wall which apertures are aligned when the probe is connected in the receptacle by relative rotation of the tubes. A similar security device is provided in the recess which receives the probe in the receptacle. A fare box 21 on a bus is emptied into a depository by unlocking (with a card key) the probe 30 on the end of hose 24 from its housing 31 on the depository, inserting the probe into a corresponding recess in the fare box, rotating the tubes of the probe and the recess until all four apertures are aligned, when coins are moved into the hose and thus to the coin decelerator by suction from a vacuum pump energized by removal of the probe from housing 31. The tubes are again rotated to their original positions, the probe is replaced in housing 31, the vacuum is switched off and the coins fall through a door in the bottom of the coin decelerator to a coin feeder leading to a coin sorter acting by vibration. The coins are thus stored in denominations in the depository.
Patent GB-924941-A (GB)
Title: Improvements relating to the production of heat-sealable compositions
IPC: C09J123/08
Filed: 1960-12-29
Abstract: A moisture-proof, heat-sealable composition consists essentially of 10-20% of petroleum wax such as paraffin or microcrystalline wax and 90-80% of ethylene/vinyl acetate copolymer, the copolymer containing 15-40% of vinyl acetate.  The preferred petroleum wax is the fraction melting between 51 DEG  and 93 DEG C.  The components may be mixed directly or wax added to the freshly prepared molten co-polymer under pressure.  The above compositions may be blended with more paraffin wax so that the final co-polymer content is 1-60%.  The compositions may also contain such antioxidants as hydroquinone, 3-t-butyl-4-hydrozyanisole, 2:6-di-t-butyl-4-methylphenol di-t-butyl-p-cresol, and phenyl-a -naphthylamine in amounts up to about 0,1%, and may be used as moisture-proof, heat-sealable coatings.  Specification 879,959 is referred to.ALSO:Compositions consisting of 80-90% of an ethylene/vinyl acetate copolymer and the remainder petroleum wax, said copolymer having a vinyl acetate content being 15-40% with an inherent viscosity of 0,45-1,5, may be prepared by mixing the components at a temperature of 90 DEG -150 DEG C.  The preferred petroleum wax is the fraction melting between 51 DEG  and 93 DEG C.  The wax may also be added directly to the freshly prepared molten co-polymer at not less than 250 atmospheres.  The above compositions may be blended with more paraffin wax as above so that the copolymer content is 1-60% and may contain up to 0,1% of an anti-oxident for the wax.  The copolymerization of ethylene and vinyl acetate may be carried out batchwise or continuously in the presence of a catalyst, e.g. t-butyl peroxide at a pressure of 300-3,000 atmospheres between 100 DEG  and 250 DEG C.  The compositions may be used as moisture proof heat-sealable coatings.  Specification 879,959 is referred to.
Patent GB-1482358-A (GB)
Title: Rotary drums
IPC: F27B7/22
Filed: 1975-09-17
Abstract: 1482358 Bearings F L SMIDTH & CO AS 17 Sept 1975 [16 Oct 1974] 44855/74 Heading F2A [Also in Divisions F4 and G3] A rotary drum, for example a rotary kiln, is supported by a line ring 2 which rests on rollers. The drum is mounted within the line ring on support elements 3 which can be adjusted to maintain sufficient clearance between the ring 2 and drum 1 so that the relative velocity between the ring and drum when the two rotate is maintained at a desired amount. The elements 3 are adjusted when at their uppermost unloaded position during the rotation of the drum. The clearance at the uppermost point is measured by a device 7<SP>1</SP>, 7 and then is compared in a device 8 with a selected clearance set at 9. If the clearance measured by the device 7<SP>1</SP>, 7 varies from that selected a signal is transmitted to the motor 6 via the slip rings 10. The motor turns the support elements 3 until the clearance is again of the desired amount. In a further embodiment the clearance between the line ring and drum may be controlled by wedge-shaped supporting elements (23), Fig. 2 (not shown), with a control mechanism in which the actual migration rate is compared with a selected migration rate to determine the amount of adjustment that should be imparted to the support elements.
Patent GB-1476107-A (GB)
Title: Electrowinning
IPC: C25C1/06
Filed: 1975-10-30
Abstract: 1476107 Preventing anode poisoning in electrolysis DIAMOND SHAMROCK TECHNOLOGIES SA 30 Oct 1975 [31 Oct 1974]  45000/75 Heading C7B Poisoning of the electrocatalytic coating of a dimensionally stable anode used in electrolytic processes in which oxygen is evolved in aqueous solution, e.g. electrowinning, is prevented by cooling the anode to below 40C during operation. A conventional valve metal based anode may be cooled internally by a liquid which is used to preheat the electrolyte incoming to the cell. Acidic sulphate solutions of Cu, Zn, Ni or Co are referred to, containing Mn, Fe and/or Co as impurities, whose oxides deposit on the anode at higher temperatures.
Patent GB-1366674-A (GB)
Title: Graphite pellets
IPC: C01B31/00
Filed: 1971-09-28
Abstract: 1366674 Graphite alumina pellets BRITISH PETROLEUM CO Ltd 11 Sept 1972 [28 Sept 1971] 45046/71 Addition to 1334226 Heading C1A [Also in Division C5] Pellets comprise graphite and finely divided alumina in a weight ratio graphite : alumina of 1 : 1 to 9 : 1, the alumina being an alumina having a surface area of at least 200 m.<2>/gm., a pseudo-boehmite structure and a crystallite size of less than 10 nm, the graphite being gas or vacuum ground and having a surface area of 50-2000 m.<2>/gm. The pellets may contain 6-50% by wt. of alumina and 50 to 80% by wt. of graphite. The above pellets may be prepared by intimately mixing a suitable graphite and alumina, working the mixture into a paste with a liquid, e.g. water and granulating or extruding. The extruded material may be broken up and sintered in an inert atmosphere. The pellets as prepared above may be used for separating normal hydrocarbons and/or polar compounds from mixtures with other hydrocarbons by contacting the mixture with the pellets when selective absorption occurs. The preferred hydrocarbon feed mixture is a petroleum fraction boiling between 300‹ and 700‹ C. The absorbed normal hydrocarbons and/or polar compounds may be desorbed from the pellets and the process repeated cyclically. The absorption may be carried out at - 50‹ to 200‹ C. and the weight ratio of graphite used to feed passed may be less than 1 : 1. The process may be carried out in the presence of a liquid in which the absorbed/ desorbed compounds are soluble, the volume ratio of solvent to feed being up to 50 : 1. The pellets of the present invention may also be used for removing n-paraffins from hydrocarbon feed mixtures and this removal may be carried out in a series of stages at a temperature of 0‹ to 50‹ C. preferably in the presence of a polar solvent. The pellets are also suggested for the removal of aromatics, heterocyclics and sulphur compounds from a dewaxed raffinate, e.g. at a temperature of 50-200‹ C. in a weight ratio of graphite to raffinate of 0À5 : 1 to 10 : 1. The pellets may also be used for improving the heat and colour stability of a gas oil, lubricating oil or hydrocracked gas oil by treating such oil in a weight ratio to the pellets of 0À01 to 1 : 1 at a temperature of 50-200‹ C. The used pellets may be freed from adsorbed materials by treatment with a liquid, e.g. at a temperature of 100‹ to 400‹ C. at a volume ratio liquid : desorbed material of from 2 : 1 to 100 : 1. The desorbing liquid used is preferably the same as the solvent liquid previously used.