baber/WOPTO huggingface dataset:
Patent GB-264713-A (GB)
Title: Electrically heated warming pan
IPC: A47C21/04
Filed: 1926-05-12
Abstract: 264,713. H÷ck, H., and H÷ck, G. May 12, 1926. No Patent granted (Sealing fee not paid). Electric warmers. - In warming-pans of the kind in which an electric heating element m is enclosed in a casing a together with sand or other heat-absorbing, electric-insulating material maintaining the pan warm for a considerable time after the current is switched off, the element m is insulated from the sand and is held in position by being clamped between two parallel plates k, l secured to the casing a. The casing may be in two halves secured together by screws to facilitate dismantling the pan. The upper half has an aperture closed by a lid d secured by a screw e to the plate f, the plate f having secured at its end bolts with ball-heads g carrying a handle h. The plate l is secured to the plate k by screws and the plate k to the plate f by a screw i. The ends of the heating wire are connected to plug terminals in a cavity in the upper half of the casing.
Patent GB-1427570-A (GB)
Title: Pneumatically conveyor systems for pulverulent or partriculate  materials
IPC: B65G53/52
Filed: 1973-03-14
Abstract: 1427570 Pneumatic conveyers R W BROWN 11 March 1974 [14 March 1973] 12366/73 Heading B8A [Also in Division F1] In a pneumatic conveying system for pulverulent or particulate materials, controlled amounts of material are alternately fed to a despatch vessel and pneumatically discharged therefrom into a conveying pipe-line, the frequency of the fill/discharge cycle being 6-60 per minute. In the Figure, material passes from hopper S via fill valve 2 into despatch vessel 1 and thence into conveying pipe-line 3 to be delivered to receiving hopper R. Air is supplied alternately to fill valve 2 and despatch vessel 1 to cause alternate filling and emptying of vessel 1. Air is also supplied at injectors 4 via non-return valves 11 to create "slugs" of material separated by air. The system may be controlled pneumatically, as shown, or electro-pneumatically.
Patent GB-580310-A (GB)
Title: Olefin polymerisation
IPC: C07C2/16
Filed: 1944-06-29
Abstract: A solution of an olefin in a liquid acid polymerization agent is contacted with a hydrocarbon in the gaseous state under such conditions of temperature and pressure that the gas condenses and furnishes heat for the polymerization of the olefin.  An olefin or the corresponding alcohol, ether or other compound may be used to form a polymerizable solution in, for example, aqueous sulphuric or phosphoric acid.  The added hydrocarbon which may be a normal paraffin, an isoparaffin or an aromatic hydrocarbon, for example hexane, isobutane, isopentane, benzene or toluene, is preferably used in sufficient amount to form an acid-in-hydrocarbon emulsion. Mixtures of olefin polymer with isoparaffin or aromatic may be subjected to alkylation.  A cracked C4 fraction may be treated with 60-70 per cent sulphuric acid at about 0-30 DEG  C. to absorb the isobutene, and at least 4, preferably 5-10 or more volumes of isobutane, as liquid, added per volume of acid phase.  At least part of the isobutane is added as vapour, usually about 0.6-1.2 vols. per vol. acid for polymerization with 65 per cent acid, to supply the necessary heat.  Under these conditions a pressure of 150-300 p.s.i. gives the desired polymerization temperature.  After cooling and separating acid, the polymerized mixture, from which impurities such as water have been removed by the acid, may be alkylated by a circulating emulsion process as in Specification 540,824 or by passage through solid alkylation catalysts.  The products are fractionated, excess isobutane being returned to the polymerizer. Alternatively, the hydrocarbon added during the polymerization stage may be alkylated with other alkylating agents.  In an example, a liquefied C4 fraction is mixed with 65 per cent sulphuric acid at about 10 DEG  C. and the emulsion maintained for 20 mins. to absorb isobutene.  The solution containing equimolar proportions of isobutene and acid is mixed with the same volume of isobutane gas and passed to a polymerizer at about 250 p.s.i. where isobutane condenses giving a temperature of about 80 DEG  C. The product containing di-isobutene is cooled to 20-30 DEG  C. by adding liquid hydrocarbon such as that from the subsequent separation and the mixture then stratified to separate acid. U.S.A.  Specification 2,228,669 also is referred to.
Patent GB-1325990-A (GB)
Title: Expansion joints for highways and the like
IPC: E01C11/12
Filed: 1970-07-01
Abstract: 1325990 Expansion joints for concrete slabs ACME HIGHWAY PRODUCTS CORP 1 July 1970 [1 July 1969] 12454/73 Divided out of 1324702 Heading E1B An expansion joint between concrete slabs 6, 8 comprises a pair of opposed structural members 130, 132 with resilient seals 26 therebetween spaced apart by an intermediate member 180, each seal having side wall projections such as 88, 90, 92, 94 received in the associated structural member and the intermediate member, respectively. The intermediate member rests on one or more bearing blocks 150, 152 through beams 154 and supports a tread 194 as shown.
Patent GB-1008432-A (GB)
Title: A process for preparing water-soluble colored substances
IPC: A23L5/40
Filed: 1963-03-29
Abstract: Water-soluble coloured substances are obtained by mixing b -carotene with one or more water-soluble high molecular weight compounds selected from the group consisting of, polyvinyl pyrralidone, copolymers of vinyl pyrrolidone and vinyl acetate, methyl cellulose and methyl cellulose propylene glycol ether in the presence of a solvent which dissolves b -carotene and dissolves or has a chemical affinity for the said high molecular weight compound, followed by removal of said solvent. Antioxidants such as 4 - hydroxy - 3,5 - di - tert. - butyl toluene and/or a mixture of 3 - tert. - butyl - 4 - hydroxy-anisol and 2-tert.-butyl-4-hydroxy anisol may be added.  The solvent is preferably chloroform, methylene chloride, carbon tetrachloride, benzene, cyclohexane, or trichloroethyline.
Patent GB-131687-A (GB)
Title: Improvements in Appparatus for Use in Steering Aircraft
IPC: G01C17/00
Filed: 1918-08-01
Abstract: 131,687. Hughes, A. J., and Hughes & Son, H. Aug. 1, 1918. Magnetic compasses.-A compass for use in steering aircraft is provided with an adjustable lubber line adapted to be set to allow for drift on an out-and-home course. A circular frame D, rotatable on the bezel of the compass, carries pointers E, F at an angle of 180 degrees to one another. Two segmental frames H<11>, J<11>, adjustable on the frame D, are each provided with a fixed pointer N and a movable one L. The zero of the graduations on the fixed bezel is set on the fore-and-aft axis of the machine. In use, the frame D and its pointers are set for the magnetic ground course as shown in the figure, the frame H" (say) is next moved so that the pointer N contacts with pointer E, and the pointer L is adjusted according to the drift angle, which may be determined by the device described in Specification 131,688. The pointer L then serves as the lubber line for the outward journey. On the homeward journey the frame H" is swung round until the pointer L contacts with the pointer F, and the pointer N is then used as the lubber line.
Patent GB-234119-A (GB)
IPC: F22B13/12
Filed: 1925-05-14
Abstract: 234,119. Schmidt'sche Heissdampf- Ges. May 14, 1924, [Convention date]. Feed-water, heating.-In a locomotive boiler with a water-tube fire - box and smoke - tube longitudinal boiler, the water space of the fire-box is separate from that of the longitudinal boiler. In Fig. 1. in which steam of one pressure only is generated, the water tubes 1 of the fire-box are used for the generation of steam. A pipe 4 connects the steam spaces of the drum and longitudinal boiler 2, and excess feedwater overflows through a pipe 10 into the boiler 2. Feed-water heated by engine exhaust in a heater 7 is forced by a pump 6 into the steam space of the drum 3. In the form shown in Fig. 2, the pressure, in the drum 3 is higher than that in the boiler 2. The feed water from the pump 6 is heated first in a heater 17 to about 100‹ C. by exhaust steam from the main engines and then in a heater 21 by lowpressure steam from the boiler 2 before being delivered by a pipe 24 to the steam space of the drum 3. This second heater 21 may be replaced by pipes or coils arranged in the low-pressure boiler and preferably in its steam space.
Patent GB-1166029-A (GB)
Title: Improvements in or relating to Connecting Rod Sealing Arrangements
IPC: B21B21/00
Filed: 1968-03-15
Abstract: 1,166,029. Connecting-rod seals. MANNES-MANN-MEER A.G. 18 March, 1968 [17 March, 1967], No. 12621/68. Heading F2B. A connecting rod 1 of a cold pilgriming rolling mill is sealed where it passes through a wall 2 of the crank housing by means comprising a body 5 which has a bore for the rod 1 and is mounted in a slider 3 to oscillate about a horizontal pin 6, the slider 3 being vertically slidable in a guide frame 4 mounted in the wall 2.
Patent GB-937426-A (GB)
Title: Improvements relating to the testing of cigarette filters
Inventor: FORDYCE WILLIAM BRIAN
IPC: G01N15/08
Filed: 1961-04-07
Abstract: 937,426. Testing cigarette filters photoelectrically. BRITISH AMERICAN TOBACCO CO. Ltd. March 28, 1962 [April 7, 1961], No. 12642/61. Class 40 (3). In an apparatus for testing a cigarette filter, cigarette smoke is passed with a puffing effect through the filter and photometric means are used to measure the density of the smoke before and after its passage through the filter. In the embodiment shown, a filter plug 1 to be tested, held in a holder 22, is placed in an airstream drawn through glass tubes 7 and 8 by a suction pump (not shown) and carrying smoke from an untipped cigarette 2, and the airstream is initially viewed by a first photo-voltaic cell 3 and by a second such cell 4 after it has passed through the filter plug. The cells are connected in opposition to a meter 18, and are illuminated by a lamp 5 mounted in a parabolic reflector 6 or associated with two plane mirrors (not shown). Initially the outputs of the cells 3, 4 are adjusted to balance when there is no air in the stream and the difference in obscuration of the cells when smoke is drawn through the filter is indicated by the meter 18 as a measure of the efficiency of the filter. To align the apparatus to known obscuration conditions, analogue masks (not shown) may be interposed between the light source and the cells 3 and 4, respectively. The cells 3, 4 may be selenium or other barrier layer cells, or photo-emissive or photo-multiplier cells may be used in conjunction with an amplifier feeding a meter or recording meter.
Patent GB-866153-A (GB)
Title: Method and apparatus for the manufacture of box-like containers
IPC: B31B50/25
Filed: 1959-04-14
Abstract: 866,153. Making cartons. ST. REGIS PAPER CO. April 14, 1959 [May 19, 1958], No. 12662/59. Class 18. A semi-rigid case of kraft paper, Fig. 15, is formed from a roll of flat paper by forming the paper into a tube and securing the edges by adhesive, the corner lines being scored by rolls to facilitate erection of the case, and the tube subsequently cut into lengths correspond to the length of case required. The corner lines may be strengthened by reinforcing strips stuck to the web of paper. A tear strip 45a having a slit 100 to facilitate opening may be provided. The kraft paper on a roll 21 passes to a printing station 23 and then to an adhesive application station 36 where reinforcing strips from rolls 26-29 are affixed. A thermo-plastic adhesive applied in two parallel ribbons, may be used. The scores are formed by various rolls, one form being shown in Fig .13, the crests of the scores may be further deformed. Alternatively, the web may be creased by a creasing blade 65, Fig. 8, and passed between rolls to press the part 68 on to the part 22. Cutters 92-95 form the end flaps 87-90 by slitting the tube at its corners 91 and are mounted on a shaft 102 carrying the cutter 101 that cuts the slit 100 in the tear strip. Fingers 101a remove scrap portions cut out of the web slots. The tube is formed at 48 and subsequently passes to draw rolls 103, a cutter 108 severs the tube to the length of case required, and at 110 and 116 creasing means are provided for forming the crevices between the case and its end flaps.
Patent GB-218792-A (GB)
Title: Spring adjustable contra angle handpiece for use on dental engines
IPC: A61C1/12
Filed: 1923-05-11
Abstract: 218,792. Pride, A. J. May 11, 1923. Dental and like engines. -A dental contra-angle handpiece comprises the usual right-angle head A connected by means of a union nut E to the curved neck B. The bearing sleeve F of the spindle H of the head A is fitted with pins D engaging grooves C on the end of the neck B. The head may be pulled outwardly against the action of a spring G within the union nut E, turned to the required angle, and again released so that it is locked in position by the pins D entering the grooves C.
Patent GB-434035-A (GB)
Title: Improvements in or relating to a process of conditioning hydrated alkali metal silicates
IPC: C01B33/32
Filed: 1934-04-27
Abstract: The caking of hydrated alkali metal silicates, such as sodium metasilicate, in storage is prevented by crushing or grinding the crystals thereof and cooling them with or without agitation during adjustment of the crystalline structure.  Preferably the material is treated in a rotating drum with air or gas currents, which may also remove some water of crystallization.  The freshly crystallized material may be aged before it is ground, or be subjected to cooling by air or gas currents in the form of relatively large lumps, aged if desired, ground, and again cooled by air or gas currents.  At some stage of the treatment, heated air may be used to remove water of crystallization.
Patent GB-1193723-A (GB)
Title: Process for the preparation of Modified Synthetic Conjugated Diene Solution Polymers
Inventor: HEIJ GERARDUS ENGELBERTUS LA
IPC: C08F4/40
Filed: 1968-03-15
Abstract: 1,193,723. Latices of cross-linked polymers. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 14 March, 1969 [15 March, 1968], No. 12779/68. Headings C3C and C3P. A latex of a solution polymerized diene polymer is treated with a redox catalyst comprising a hydroperoxide in the absence of monomer. Suitably polyisoprene is treated with cumene hydroperoxide, ferrous sulphate, and disodium dihydrogen ethylene diamine tetra-acetate. This treated polymer may be coagulated and compounded or mixed with an untreated polymer solution or latex and compounded. The treated polymer latex may also be foamed to form a cellular product which is gelled and cured. The treatment loosely crosslinks the polymer.
Patent GB-204675-A (GB)
Title: Improvements in or relating to the protection of packing cases and the like against tampering
IPC: G08B13/12
Filed: 1923-05-12
Abstract: 204,675. Portch, G. G. Sept.. 29, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Theft and burglar alarms. - Relates to alarms for indicating any tampering with movable objects, strong rooms, &c. Packing cases are fisted with a double metallic lining b, c separated by insulation d. The linings are kept in position by screws e contacting with the inner linings c but passing through clearance holes in the other lining into the wood. The insertion of a metallic tool completes the circuit and rings a bell, the bell and battery being contained within the case. The bell or buzzer may be mounted on a sound-magnifying device. Wires may be stretched over the inside of a packing case and brought out through the lid to a seal which is then covered with a batten. An attempt to break open the side of the case causes the screws e to be drawn through the linings and make contact between them. For the protection of a room, the linings may be placed across the resistance in one arm of a Wheatstone bridge. Window bars may be formed of an inner rod and an outer sleeve connected in an alarm syslem.
Patent GB-702285-A (GB)
Title: Improvements in or relating to method of and machine for manufacturing filled plastic capsules
IPC: A61J3/07
Filed: 1951-05-31
Abstract: 702,285. Moulding capsules. AMERICAN CYANAMID CO. May 31, 1951 [July 19, 1950], No. 12871/51. Class 87 (2) Filled capsules are made by passing a strip 11 of gelatin around a roll 19 and forming the strips into cavities by applying suction to cavities 20. Liquid, which may have small particles suspended in it, is discharged from a gear pump 23 (which may be of the kind described in U.S.A. Specification 1,785,386), through a nozzle 25'into the cavities at position A, Fig. 2. The rate of feed of the pump may be varied by a variable drive 24. An upper strip 27 of gelatin is fed around' a heated roll 26 and at position C the upper and lower stips are sealed together and the capsule so formed is simultaneously out out from the strips. During sealing the vacuum in the cavity 20 is released so that the gelatin strip is free from external stresses. The sealed strips are carried off by rollers 36, 37, whlist the finished capsules are ejected by a plunger 21 into a discharge shield 38 having a stripper 39. The capsules are'then picked up by a pneumatic discharge system having a discharge tube 42. The liquid feed pipe may be provided with a valve 43 to allow the capsules to be filled with air whilst the machine is being adjusted. A valve may be provided in the discharge tube 42 to separate such air-filled capsules from the liquid filled capsules. The various strip contacting rollers are driven at the same speed; except for the rollers 37 which are driven at a slightly higher speed. The strips may be stretched before being fed to the machine to give them internal strains which deform the capsules after formation. The inside of the strips may be coated with gum mastic, gum sandrac, or a silicone type resin by coating rollers 16, 28. The outside of the lower strip may be oiled by a roller 12. The roller 26 has heating elements 33 controlled by a thermostat 32. Radiant heaters 44 heat the strips just before sealing. The sealing areas of the machine may, be enclosed in an inert atmosphere, e.g. nitrogen or carbon dioxide.
Patent GB-737293-A (GB)
Title: Improvements in or relating to voltage stabilizer circuit arrangements
Inventor: CROWTHER GERALD OFFLEY
IPC: G05F1/52
Filed: 1953-05-08
Abstract: 737,293. Automatic voltage-control systems. MULLARD RADIO VALVE CO., Ltd. May 8, 1953, No. 12895/53. Class 38 (4). In Fig. 2 a stabilized direct voltage, e.g. for a cathode-ray tube, is produced at terminals 3, 4 despite variations of load or the direct voltage applied to terminals 1, 2. The voltage at terminals 3, 4 is applied in opposition to a reference voltage produced across a condenser 25 to the trigger electrode of a cold-cathode discharge tube 6 which forms with a condenser 7 and a resistor 5 a relaxation oscillator which controls the charging of a condenser 8 to stabilize the voltage at terminals 3, 4. Relative time constants of the resistance-capacity networks are referred to. The reference voltage across condenser 25 is obtained through a rectifier 26 from a relaxation oscillator including a further cold-cathode discharge tube 20, the ratio of capacities 23, 24 determining the value of the stabilized voltage. A rectifier 30 prevents undue load on the reference source when tube 6 conducts. In a modification condenser 7 is connected between anode and cathode of tube 6. Specifications 737,292 and 737,294 are referred to.
Patent GB-1424819-A (GB)
Title: Heating buildings
IPC: F01K9/00
Filed: 1973-03-15
Abstract: 1424819 District heating systems ATOMENERGI AB 15 March 1973 [17 March 1972] 12933/73 Headings F4U and F4V In a district heating system using waste heat from a thermal power plant 1, each building 29 in the system has a heat exchanger 30 for heating air some or all of which is used to heat the building, the excess being released to atmosphere through pipe 70 so that the system can absorb an amount of heat which is independent of the heating requirements of the buildings. The condenser 4 of the power plant produces hot cooling water which is accummulated in a tank 150 before being passed by pump 22 to a tank 31 in each building in the system. The water leaving the heat exchanger 30 is returned by pump 111 and pipe 28 to a tank 25, whence it returns to the condenser 4. Air is drawn through the heat exchanger by fan 40 and passed via pipes 42, 43 to the rooms 50. Thermostats 51 control the inlet dampers 60 to keep the temperature constant. When the rooms are sufficiently warm the excess warm air is automatically vented at 70. The air leaving the rooms passes through a heat exchanger 100 heating the incoming air. This is put out of action if the outside air is at more than a given temperature by opening a damper 101. The amount of heat removed from the power plant can be increased by increasing the temperature or flow of cooling water. The heating system automatically adjusts itself to these changes and excess heat is discharged to atmosphere. Normally a valve 112 regulates the water flow to the heat exchanger so that only a small amount of hot air is discharged at 70, the valve 112 being controlled by a pressuredrop signal 113 given by an orifice 71 in pipe 70. If it becomes necessary to discard more heat the water flow is increased by increasing the pressure of pump 22. This is detected by a gauge 115 which sends a signal to valve 112 overriding signal 113 so that valve 112 remains open. Different pressure levels may trigger the gauges 115 in different buildings to obtain a gradual increase of the rate of heat loss.
Patent GB-1311964-A (GB)
Title: Arrangement for the inductive measurement of the rotational speed of a vehicle wheel
IPC: B60T8/32
Filed: 1970-03-18
Abstract: 1311964 Dynamo-electric machines DAIMLER-BENZ AG 18 March 1970 [19 March 1969] 13033/70 Heading H2A A wheel speed sensing arrangement 1 is in the form of a frequency generator whose stator 5 is fitted to the stationary hub carrier 7 of the wheel mounting and whose rotor 8 is fixed to the rotatable wheel flange 9 of the mounting. The stator 5 comprises two flanges fixed together and has yoke carriers 11, each of which has secured to it a yoke 12; one limb 14 of each yoke 12 has a winding 6 disposed thereon, so that the windings 6 are arranged uniformly about the stator 5, and both limbs 14 are formed with externally projecting teeth 15. The rotor 8 is bell-shaped and is formed with teeth 19 to co-operate with teeth 15. The numbers of teeth 15 and 19 are equal or are in an integral ratio, and they are coated with a layer of antimagnetic material. Sensing elements provided on a number of vehicle wheels deliver their output signals to a common comparator which controls vehicle braking to prevent wheel locking.
Patent GB-1419624-A (GB)
Title: Drills for use in drilling and the like operations
IPC: B23B51/02
Filed: 1972-03-21
Abstract: 1419624 Drills; reamers J W FLOWER Jnr 20 June 1973 [21 March 1972 24 March 1972] 13173/72 and 13947/72 Heading B3C A drill, reamer, or a combination drill and reamer, comprises flutes each of which has a concave or hooked form 7, Figs. 1 and 2, along the cutting edge 3 from the periphery towards the centre and at the heel, Fig. 3, where it joins a convex or flat portion 6. The lands 9 are backed-off by providing a shoulder 11. A reamer has four flutes Fig. 6. A combination drill and reamer Fig. 7 (not shown) is described.