baber/WOPTO huggingface dataset:
Patent GB-1514114-A (GB)
Title: Temperature compensated liquid level transmiter
IPC: G01L7/08
Filed: 1976-02-23
Abstract: 1514114 Measuring liquid level, density and fliud-pressure FISCHER & PORTER CO 23 Feb 1976 [24 April 1975] 07113/76 Headings G1H, G1L and G1S In apparatus for measuring the liquid level in a container wherein a force e.g. pressure is sensed via a diaphragm 39 and transmitted by an hydraulic coupling 43 to a force balance transducer 34 compensation for temperature changes is obtained by making a portion 40 of fill chamber 41 containing the hydraulic fluid, of a material of low coefficient of expansion relative to the housing 38 whereby variations in temperature produce changes in the volume of the fill chamber which partially compensate for changes in the fluid volume. In measuring the liquid level in a container pressure on diaphragm 39 is transmitted via a capillary 43 to a diaphragm 45 coupled by a pin 46 to the beam 35 of the force balance. The pressure above the liquid in the container is applied via diaphragms 48, 50 and pin 51. The insert 40 is of a Fe Ni alloy and has corrugations corresponding to those of the diaphragm 39. Preferably the volume of fluid in chambers 44, 49 and the characteristics of the diaphragms 39, 48 are matched. The bar 35 exerts a torque on one end of a pivoted bar of a known force balance transducer. This is balanced by a torque exerted by feedback bellows. Change in fluid-pressure causes the bar to deflect and move a flap relative to a stationary nozzle. This energizes a pneumatic relay whose output is applied to the bellows to re-balance the bar. The relay output is proportional to the fluid-pressure and is applied to the process apparatus being controlled. The force balance may be of the open loop type. The apparatus may be used to measure density and specific gravity.
Patent GB-713885-A (GB)
Title: Improvements in or relating to the production of castings, ingots and the like
IPC: B22D7/10
Filed: 1952-03-20
Abstract: 713,885. Ingot moulds; chills. ENGLISH STEEL CORPORATION, Ltd.. GRAY, B., and BURTON, H. H. Feb. 26, 1953 [March 20, 1952], No. 7233/52. Class 83 (1) In a method of producing castings, ingots &c. in steel or other alloys utilizing a mould having a feed head, liquid metalin the upper part of said head is caused to freeze as quickly as possible whilst the metal in the lower part of the head is maintained at as high a temperature as possible so as to remain liquid. A chill 5 of cross-shaped upper part, Fig. 6, is inserted into the ingot head 1, depending portions 5a projecting into the head. Other forms of insertable chills are described, or, alternatively, the upper part of the mould-head may be made wholly or partially of cast iron to provide the requisite chilling effect.
Patent GB-948255-A (GB)
Title: Improvements in or relating to hydraulic pit props
Inventor: ALLSOP WILFRED
IPC: E21D15/44
Filed: 1959-03-03
Abstract: 948,255. Hydraulic pit props. W. E. & F. DOBSON Ltd. Feb. 22, 1960 [March 3, 1959], No. 7266/59. Heading E1E. An hydraulic pit prop as disclosed in Specification 821,645 is provided with a sealed outer guard tube 11 defining with the cylinder 4 an annular gap 12 which communicates by means of a port 14 with the annulus 13 between the piston and cylinder unit 1, 4, the arrangement being such that contraction of the prop is not adversely affected by pneumatic pressure variations in the annulus 13. The prop is provided with a chamfered base plate 15 bolted thereto. The guard tube 11 may be of corrugated form, see Fig. 2 (not shown).
Patent GB-369733-A (GB)
Title: Improvements in liquid meters
IPC: G01F3/18
Filed: 1931-03-10
Abstract: 369,733. Liquid-meters. AVERY, Ltd., W. & T., YATES, H., and PAGE, A. E., Soho Foundry, Birmingham. March 10, 1931, No. 7348. [Class 69 (ii).] In a liquid meter comprising pistons 8 connected to a swash plate 10, the latter is provided with cam surfaces 10a which contact with a fixed member 16 when a piston, is at the top or bottom of its stroke. The swash plate is provided with a forked member 13 engaging a rod 14, and acts on a crank 22a to rotate a spring-pressed distributing valve 17 through arms 26a engaging slots in the base of the valve. The casing 4c is initially filled through passages controlled by a valve 27, the displaced air escaping through a tube 15 and valve 15a. According to the Provisional Specification, the cam surfaces 10a co-operate with cam surfaces on the member 16.
Patent GB-508886-A (GB)
Title: Improvements in rubber containers
IPC: A61F7/08
Filed: 1938-03-09
Abstract: 508,886. Hot water bottles. VEEDIP, Ltd., and SUTTON, S. T). March 9, 1938, No. 7368. [Class 64 (ii)] [Also in Group VIII] A hot-water bottle has a rubber wall with a crinkled or roughened outer surface 5 and a fabric covering 1 attached, e.g. by rubber cement, to the raised parts of the surface so as to close but not to enter the cavities in the surface. The covering may comprise two fabric pieces, the edges 2 of which adhere and may be finished, e.g. by binding 3. Velour and velvet made from cotton, silk, or artificial silk may be used, the nap forming the outer surface. The crinkled or roughened surface may be produced by moulding, or by coagulation and swelling of latex as described in Specifications 293,111, [Class 70]. and 462,492, [Group V].
Patent GB-903510-A (GB)
Title: Method of measuring fluid flow
IPC: G01F1/72
Filed: 1961-02-28
Abstract: 903,510. Sampling liquids. STAMICARBON N.V. Feb. 24, 1961 [Feb. 29, 1960 ; Sept. 9, 1960], No. 7374/61. Class 106 (5). [Also in Group XXIX] An auxiliary fluid flow q which is proportional to a main fluid flow Q is passed to a meter GM through a single or double pres. sure simulator or relay ER, Fig. 1, or DR, Fig. 5, and the capacity C of the chamber before the outlet from the pressure simulator is related to the minimum rate of auxiliary flow q and the maximum pressure rise (dp)/(dt) max by the relationship:- q # C(dp)/(dt)max   The relationship is stated to give accurate measurement of flow even with large pressure and rate pulsations in the main flow. The proportional flow may be used as a continuous sample and have various tests applied to it. The proportionate flow q can be branched directly from the main flow Q or may be a separate auxiliary flow of another fluid or of the fluid being measured after treatment such as filtering and restoration of its temperature to that of the main flow and increase of its pressure to a value above the pressure p 1  upstream of the simulator.  As shown in Fig. 1, an orifice plate d 1  is placed in the main flow line and the branch flow q is led to a simultor ER having an orifice plate d 2  and a diaphragm M controlling a nozzle N leading to a gas meter GM. The diaphragm M controls the branch flow so that the downstream pressures p 2  on opposite sides of the diaphragm are equal. In Fig. 5, the auxiliary flow q is introduced into the simulator DR at a pressure p v  higher than P 1  and acts on a second diaphragm M 1  which controls a vent nozzle AN in the same manner as the downstream diaphragm M 2  to control the pressures in the upstream flow spaces. Fig. 8 illustrates a constructional form of simulator in which the diaphragms M 1 , M 2  are arranged in spaced parallel relationship and the orifice d 2  is a straight narrow passage between the diaphragms. The pressure of the main flow Q upstream and downstream of the orifice plate d 1  is communicated to the outer faces of the diaphragms through a plug or slide valve pk and a filter F is provided in the auxiliary flow inlet.
Patent GB-576982-A (GB)
Title: Improvements in or relating to the concentration of minerals by froth flotation
IPC: B03D1/24
Filed: 1944-04-21
Abstract: 576,982. Separating minerals by flotation. DAVEY, PAXMAN, & CO., Ltd., and WARD, F. H. ALLMAN-. April 21, 1944, No. 7419. [Class 82 (ii)] In the separation of minerals by froth flotation, the slurry is simultaneously agitated, mixed and aerated in a pressure tank by means of jets of compressed air introduced at the lower end of the tank, and then fed into a separating chamber at atmospheric pressure. As shown, a pressure tank 3 is supplied with the raw materials and flotation agent under pressure by a pump 25, and with air under pressure by one or more pumps 17 associated with a reservoir 19, a non-return valve 23, and a hand or automatically controlled throttle valve 24. The pump 17 directs air to a nozzle 16 which discharges one or more jets up a central tube 15. The outlet 4 from the tank 3 is regulated by a ball valve 5 chained to a pivotally mounted horse-shoe shaped float 6, and subjected also to hand control. The outlet 4 discharges directly into a double conical separating chamber 1. The froth flows over the outer edge of an annular opening 2 into an annular collecting trough' 9 with a downwardly inclined base leading to a discharge duct 10. The processwater and the residues pass, respectively, through and around a central pipe 11, into rectangular sealing pots 14, 13 provided with an overflow pipe for the water, and with conveyors, scrapers, or other mechanical means for the residues.
Patent GB-551401-A (GB)
Title: Improvements relating to recording maximum demand meters
IPC: G01R11/60
Filed: 1941-06-13
Abstract: 551,401. Recording apparatus. LANDIS & GYR SOC. ANON. June 13, 1941, No. 7467. Convention date, June 15, 1940. [Classes 106 (i) and 106 (iv)] A maximum demand meter is provided with a printing mechanism for recording the time, the impulse values registered by the meter, and a reading constant characteristic of the meter and indicative of the number of units represented by each impulse. As shown a motor M through gearing 4 drives a roller 1 to advance a record strip 2. A clock U drives a counting mechanism 7 having time type wheels.. The meter Z through a known form of storage device Sp drives a counting mechanism 8 having type wheels for registering the number of impulses. A printing plate 9 carries a type representing the reading constant and a printing plate 10 is provided to indicate the number of other characterising sign of the meter. An impression on the record strip is made periodically by hammers 12 actuated by a cam 6 driven by the motor M.
Patent GB-384987-A (GB)
Title: Improvements in lathes
IPC: B23B3/04
Filed: 1931-03-11
Abstract: 384,987. Turning. BOLEY, H., 32, Mulbergerstrasse, Esslingen-on-Neckar, Germany.-(Assignee of Boley, G., [Firm of] ; Esslingen-on-Neckar, Germany.) March 11, 1931, No. 7471. Convention date, March 11, 1930. Void [Published under Sect. 91 of the Acts]. [Class 83 (iii).] In a lathe especially suitable for high-speed rotation of work between centres the tailstock centre is rotated at the same speed as the headstock. The tailstock a carries a slidable outer sleeve b which is adjusted and locked by the lever m, a spring o serving to force the sleeve towards the work ; rotatably mounted inside the sleeve is another centre-carrying sleeve c which is driven at the same speed as the headstock by a telescopc shaft k rotated either as shown or by a separate motor.
Patent GB-149894-A (GB)
Title: Improvements in gas stoves
IPC: F24H7/00
Filed: 1920-03-12
Abstract: 149,894. Kohorn, H. Aug. 30, 1919, [Convention date]. Addition to 137,046. Gas stoves.-Relates to details of construction of the heating-device described in the parent Specification. The support 3 which upholds the burner tube 2 is rigidly attached to them, or is cast in one with them, and has knife edges 11 which enter corresponding recesses in the lower edges of the heat-accumulating plates 4. The tubes 2 are cast in one with the mixing-chamber 1. The supports 6, which hold the plates 4 upright, are on a plate 15 secured to the mixing- chamber 1, and have thickened parts 18, 19 abutting against the plates 4, as shown.
Patent GB-273617-A (GB)
Title: Improvements in or relating to apparatus for cooking vegetables and other foodstuffs
IPC: A47J36/02
Filed: 1927-03-18
Abstract: 273,617. Bird & Sons, Ltd., A., and Bird, C. A. March 18, 1927. Saucepans.-Apparatus for cooking peas, beans, cereals, &c., of the type in which a, meshed shallow bag is suspended from the mouth of a saucepan so that the food within the bag is at, or near, the water level, a semi-boiling or semi-steaming being thus effected, is characterized by the bag being detachably suspended from a substantially flat ring which is supported by the rim of the saucepan. As shown in Fig. 1, the bag a is suspended from a ring b having outwardly directed teeth c pressed up from the ring, the mouth of the bag being detachably engaged with the teeth. The rim of the ring is beaded at b<1> and the inner circumference is flanged downwardly. In one modification, the teeth c are replaced by upstanding buttons or studs, whilst in another, the teeth are spaced around the periphery of the ring b.
Patent GB-746835-A (GB)
Title: Apparatus for treating hair with liquids
IPC: A45D34/04
Filed: 1953-03-18
Abstract: <PICT:0746835/III/1> <PICT:0746835/III/2> <PICT:0746835/III/3> <PICT:0746835/III/4> An apparatus for treating the hair with liquids comprises an elongated casing including a liquid-containing cylinder in which is a floating plunger acting upon the liquid contents and displaceable to force the liquid out through a nozzle, by compressed air acting on the side of the plunger opposite to the liquid and generated by a manually driven air pump such as an elastic bladder disposed laterally of the cylinder, and in communication therewith, and operable by the hand grasped round the cylinder to hold the apparatus.  As shown, the apparatus comprises a casing 1, which may be made of a transparent plastic, forming a handle and having a cylinder 2 formed therein.  One end of the cylinder has a cover 3 which contains a channel 6 connected to the cylinder through a non-return valve 9, and to a rubber bladder 8 through a pipe 7.  The bladder 8, when compressed supplies air to the cylinder 2 on one side of a freely running plunger 11; on the other side is a supply of liquid which is pressed out through a channel 12, to a distributing finger 13 which is retained by a stop screw 15, and has a groove 16 receiving a radial cam 17 on the cap 3 to secure the latter.  The finger 13 has a bore 18 communicating with the passage 12 and with an elongated groove 20, the outer portion of which is widened to receive a liquid-distributing member 21, in the form of a wick.  A normally-closed valve may be provided, comprising a tube 32 of elastic material, inserted with a tight fit into a bore 31, forming a continuation of the channel 12, and compressed by a hooked portion of a rod 33, having a button 34 thereon, by which it may be displaced against the action of a spring 35.  A nozzle 29 (Fig. 9) for attachment to the apparatus of Figs. 1 and 2, and a spool 27 (Fig. 8) having a longitudinal bore 26 and a crosswise slot 28 may also be provided.  Hair to be treated may be wound on the spool 27 and liquid may be supplied to the interior thereof by the nozzle 29 which is then withdrawn, and a pad 30 placed thereover, moistened with liquid, and used for rubbing the outside of the hair on the spool 27.
Patent GB-581833-A (GB)
Title: Improvements in locking arrangements for telescopic jacks
IPC: F15B15/26
Filed: 1944-02-25
Abstract: 581,833. Hydraulic machines. DOWTY EQUIPMENT, Ltd., DOWTY, G. H., and BASTOW, F. Feb. 25, 1944, No. 7546/45. Divided out of 579,294. [Class 69 (ii)] In a locking device for telescopic jacks of the kind in which spring fingers 10 on the piston or cylinder engage a locking-formation 12 on the other member and are locked in position by a sleeve 13, the sleeve is urged into locking 'position by fluid pressure. Specifications 568,582 and 579,294 are referred to.
Patent GB-971213-A (GB)
Title: Bleaching cotton piece goods
IPC: D06L4/70
Filed: 1961-03-02
Abstract: Piece goods, e.g. socks, stockings, towels; underwear, shirts, sweaters and blankets, made from woven or knitted fabrics composed entirely of cotton or of mixtures thereof with other fibres, e.g. viscose rayon or nylon, are bleached by a batch type process comprising introducing them into an aqueous alkaline solution of hydrogen peroxide, wetting them with the solution until they have a solution content of at least 150% by weight based on the dry weight of the goods, and then contacting them with steam at elevated temperatures, e.g. 210 DEG -240 DEG F. for at least 15 minutes. The bleaching solution, which may be used at a temperature of 85 DEG -110 DEG F., may contain less than 3% hydrogen peroxide (anhydrous) by weight.  It may be adjusted to a pH of 8-13 by the addition of an alkali or alkaline earth metal hydroxide and may also contain an alkali metal silicate, e.g. Na2O(SiO2)x in which x has a value between 2 and 4, and a fluorescent brightening agent.
Patent GB-1133964-A (GB)
Title: Improvements in or relating to spray guns
Inventor: FISCHER WARREN
IPC: B05B5/035
Filed: 1966-01-14
Abstract: 1,133,964. Spray-producers. H. G. FISCHER & CO. 14 Jan., 1966, No. 7654/68. Divided out of 1,133,961. Heading B2F. The disclosure is identical with that of Specification 1,133,961 but the claims are directed towards the charging electrode associated with the nozzle assembly, said electrode being laterally offset from the axis of the nozzle outlet by a distance of the order of 3/16 of an inch.
Patent GB-181468-A (GB)
Title: Ship lifting apparatus
IPC: B63C7/12
Filed: 1921-03-11
Abstract: 181,468. Pearce, R. W. March 11, 1921. Air - casings and water - tight casings, non - structural. - Apparatus for lifting the bow or stern of a damaged vessel out of the water to effect repairs comprises an inflatable air bag 6 made of canvas treated with rubber solution, and provided with wooden rollers 4 threaded on iron bars linked by chain couplings 10 along its upper edges, ropes 5 by means of which it may be hauled under and attached to the vessel, and armoured air pipes 3 connecting it to air pumps 2 driven by the ship's winches. Ropes 7 are sewn to the upper surface of the bag to prevent chafing. A non-return valve is located between the delivery side of the air pump and the air pipe 3.
Patent GB-859354-A (GB)
Title: Electrolytic production of magnesium metal
Inventor: DEAN LLOYD G
IPC: C25C7/00
Filed: 1959-03-05
Abstract: 859,354. Producing magnesium metal electrolytically. DOW CHEMICAL CO. March 5, 1959, No. 7740/59. Class 41 Magnesium metal is produced by electrolysis of a molten electrolyte consisting of a mixture of at least 5 to 44 % Mg C1 2  and 56 to 95% of potassium chloride, and up to 1 % of calcium, magnesium or lithium fluorides, calculated as fluorine. The mixture is of lower density than magnesium metal at the operating temperature, whereby the magnesium sinks to the bottom of the electrolytic bath. A suitable apparatus comprises an iron pot 3 having a ceramic lining 4 to contain the electrolyte composition 5. In the cover 6 is mounted heating electrodes 7, raw material feed inlet 8, an outlet 10 for chlorine and other gases, and an anode 12. A steel or graphite cathode 13 is mounted at the bottom of the pot. The electrolyte is heated to a temperature in the range 825‹ to 900‹C., and about 4 to 8 Volts are applied. The magnesium metal accumulates on the cathode, and after removal of any floating sludge, is drawn off through a pipe 11. The magnesium chloride used. to replenish the electrolyte may contain up to 30 % of water without detriment. Graphs are given of the mixture of components used in the electrolyte showing the operative limits.
Patent GB-1065582-A (GB)
Title: Variable-pitch propellers
Inventor: RUSSELL JOHN GILBERT
IPC: B64C11/34
Filed: 1965-02-23
Abstract: 1,065,582. Variable-pitch propellers. DOWTY ROTOL Ltd. Jan. 28, 1966 [Feb. 23, 1965], No. 7778/65. Headings B7V and B7W. [Also in Division F2] The four blades (12) mounted in the hub (15) of a variable-pitch propeller (11) are each provided with two counterweights (20) positioned so as to be capable of opposing and exceeding centrifugal twisting moments inherent in the blades in the operation of the propeller and the hub (15) of the propeller houses a fluid damper (25) to the movable cylinder (24) of which the roots of all the blades are connected. The cylinder 24 is biased in the pitch-fining direction by a pre-loaded mechanical coil spring (33) which holds the blades at fine pitch until a desired rotational speed of the propeller is reached. The piston (27) of the damper incorporates a metering orifice (35) and the piston rod (28) is fixedly supported with respect to the hub. Stop means (31), (32) in the hub limit the range of pitch-change of the blades. The propeller is suitable for installation in unmanned aircraft, particularly those of the tethered kind.
Patent GB-719335-A (GB)
Title: Improvements in or relating to electric batteries
IPC: H01M50/50
Filed: 1952-03-26
Abstract: 719,335. Batteries. OLDHAM & SON, Ltd., and PROUT, L. R. Feb. 3, 1953, [March 26, 1952.] No. 7814/52. Class 53. A battery of cells in series for immersion in an electrolyte, for example sea water, is provided with entrances for the electrolyte in the form of ducts or chambers which are so dimensioned that a high resistance is interposed between the electrolyte within the battery and the electrolyte outside to limit the short-circuiting current between the cells due to the common electrolyte. Each cell is provided with a pair of such ducts. Fig. 6 shows in section a battery having a cell 1 for supplying current to the valve filaments of a wireless set and two larger cells 2, 3 for energizing a vibrator for the high tension supply. The cell i is provided with two ducts one of which is shown at 4 which communicates with the cell through an opening 4b and with the exterior of the battery through an opening 4a. The cell 2 is formed with an opening 7b which leads into a duct 7 having an external opening 7a, and a duct 8 connects the cell 3 to the exterior of the battery through openings 8b, 8a. The ducts of the cells 2, 3 are formed in the walls of the battery which is composed of interconnected parts 13, 21, 29 closed at the top and bottom by members 33, 10. The electrodes of the cells consist of magnesium plates and plates of cuprous chloride held in copper grids. In cells 2, 3, the magnesium plates are mounted on magnesium rods 43, 47 respectively, the cuprous chloride electrodes being mounted on copper rods 41, 45. The rods 41, 47 are connected together to connect the cells in series. In cell i the electrodes are connected to magnesium and copper rods 39, 37.
Patent GB-740220-A (GB)
Title: Improvements in or relating to dispensing devices
Inventor: THOMAS RALPH HENRY
IPC: B43K1/08
Filed: 1954-03-17
Abstract: 740,220. Paste and liquid dispensers. BRISTOL-MYERS CO. March 17, 1954, No. 7828/54. Class 81(2). A ball-type liquid or paste applicator has the ball retained in the neck of the container by a slightly resilient ring which is normally slightly spaced from contact with the ball. In one form the container 10 is made of relatively rigid material, such as polystyrene, and the retaining ring 12 is flexible being made, for example, of polyethylene. The ring member 12 is snapped on to the container over a rim 16 and the ball 11 is then retained between the rim 26 of the ring 12 and spaced bearing lugs 20, the rim 26 being normally spaced slightly from the surface of the ball to allow the passage of the liquid or paste. When not in use the device is closed by a cap, see Fig. 3 (not shown) which, either by a conical thread or a conical inner surface, compresses the rim 26 against the ball, so sealing the container. The supporting lugs behind the ball may be formed as part of the closure ring instead of on the container.