baber/WOPTO huggingface dataset:
Patent GB-780217-A (GB)
Title: Improvements relating to roof bolts for mines
Inventor: MANN REGINALD WILLIAM
IPC: E21D21/00
Filed: 1955-04-21
Abstract: 780,217. Anchor-bolts. VICTOR PRODUCTS (WALLSEND). Ltd. March 9. 1956 [April 21, 1955], No. 11571/55. Class 89(1) A roof-supporting bolt for mines comprises a bolt 4 and shells 1, 2 each approximately semicylindrical externally and having interengaging faces 6, 7 inclined to the cylinderaxis so that relative axial-movement between the shells causes them to move radially. Shell 1 has a screwed nut-part 3 to receive the bolt, and shell 2 has a transverse lip 5 to engage the end of the bolt. The lip is so made as to be fractured by the bolt before the latter has been fully tightened to give an indication of the torque applied. Shell 2 is reinforced by the engagement of part 3 with a surface 10 of the shell, and relative axial-movement between the shells is limited by abutment of part 3 against shoulders 11 and shell 2.
Patent GB-375013-A (GB)
Title: Improvements in or relating to strainers for use in connection with beer or like casks
IPC: B01D35/04
Filed: 1931-04-20
Abstract: 375,013. Valve accessories. GASKELL & CHAMBERS, Ltd. and WEIGHTMAN, J. S., Dale End Works, Birmingham. April 20, 1931, No. 11586. [Class 135.] Strainers.-The casing of a rotary plug tap, having the faucet 1 screwing into the body 7, is fitted with an internal strainer 9 extending substantially the whole length of the faucet and clamped between shoulders on the faucet and body. The faucet has a removable plug 3 at its end and its body 2 is serrated.
Patent GB-1455294-A (GB)
Title: Container vacuum sealing apparatus including an alarm system
IPC: B65B57/18
Filed: 1973-03-09
Abstract: 1455294 Vacuum sealing apparatus; alarms GOLDEN WONDER Ltd 6 March 1974 [9 March 1973] 11596/73 Headings B8C and B8T A vacuum sealing apparatus for containers such as cans, bags or cartons includes an alarm system responsive to the presence of an article in the vacuum chamber and an insufficient vacuum therein. If these two conditions are sensed then an alarm is activated. In the preferred embodiment, cans 20-23 to be sealed are fed from a conveyer 12, via a vertically reciprocating platform 14, into and out of a vacuum sealing chamber 10 having a slide closure 15. Sealed cans are transferred to take-off conveyer 13 for removal. Limit switches LS1 and LS2 are provided to detect entry and exit of the cans to and from the chamber and the chamber contains a vacuum switch VS closed at pressures down to the desired degree of vacuum. In use, a can trips switch LS1 which energizes a relay 1 which in turn closes a contact R1/1 across the switch and a contact R1/2 in series with switch LS2, a cancel switch CS and a relay 2. Since the chamber is open at this point the vacuum switch is closed and the alarm circuit is primed. The can is raised into the chamber, the chamber sealed, and vacuum sealing effected. Should the desired degree of vacuum be attained then the vacuum switch opens and deprimes the alarm circuit by de-energizing relay 1 and opening contacts R1/1 and R1/2. When the can leaves the chamber and trips switch LS2 relay 2 is not energized because of the open contact R1/2 and contact R2/2 in series with an alarm A is not energized by relay 2 and there is no alarm signal. However, should the desired degree of vacuum not be attained then the vacuum switch stays closed keeping the alarm circuit primed. When the can leaves the chamber and trips switch LS2, because contact R1/2 is still closed relay 2 is energized this in turn closing contacts R2/1 and R2/2 thus setting off the alarm. Actuation of the alarm cancel switch de-energizes relay 2 to open contacts R2/1 and R2/2 to stop the alarm. The alarm system is not, however deprimed since contacts R1/1 and R1/2 remain closed due to the closed vacuum switch. If there is no fault with the next can then the vacuum switch will open at the desired vacuum level, this de-energizing relay 1 and opening contacts R1/1 and R1/2. Subsequent passage of the can under switch LS2 will have no effect in view of open contact R/2. The system is then in its original state to receive a further can.
Patent GB-653184-A (GB)
Title: An improved plastic welding device
IPC: B05C17/005
Filed: 1948-04-28
Abstract: <PICT:0653184/III/1> A plastic extrusion welding device comprises a heating gun having mounted above the barrel thereof a cylinder for containing a thermoplastic welding medium, and a piston in the cylinder adapted to be pressed against the thermoplastic filler, a heating coil being arranged around the cylinder so that under pressure of the piston the filler is easily extruded into the path of the heated gas.  In the drawing, a heating gun comprises a refractory tube 2 containing an electric heating element 3 over which passes a stream of gas, e.g. superheated steam, which emerges from the nozzle 2a at a suitable temperature to melt the base and filler. The end of the cylinder 6 is substantially coterminous with the nozzle 2a, and a heating coil 7 extends over the tapered portion of the cylinder.  In the other end is a piston 12 having a rod 13 which passes through an arm 14 pivotally mounted on the operating arm 15 so that when the arm 15 moves inwards the rod 13 is gripped and caused to move, but on the outward movement of arm 15 the arm 14 rides freely over the rod 13. In a modification the heating gun and the cylinder may be hinged together at a desired angle.  A roller may be arranged at 20 for pressing down the extruded filler.  Specification 635,657, [Group XI], is referred to.
Patent GB-1132154-A (GB)
Title: Method and apparatus for treating burn patients with physiological solutions
IPC: A61H33/04
Filed: 1966-03-16
Abstract: 1,132,154. Apparatus for treating patients for burns. MEDICAL SPECIALTIES Inc. 16 March, 1966 [16 March, 1965], No. 11626/66. Heading A5R. Apparatus for treating a patient with a physiological solution for burns comprises a patient treatment vessel 10 to accommodate the patient or part to be treated and apparatus 14 for continuously producing the physiological solution during said treatment and for flowing said solution into and through said treatment vessel. The physiological solution may be physiological saline solution.
Patent GB-667443-A (GB)
Title: Separation of zirconia and zirconates
IPC: C01G25/02
Filed: 1950-05-10
Abstract: Zirconia or zirconates are obtained by reacting a zirconium mineral with an added base that includes a metal higher than monovalent and of atomic weight not greater than that of calcium at a temperature below electric furnace temperature such as from 2530-4000 DEG F. to form crystals of zirconia or of the zirconate of the base in a friable silicate matrix whose base to silica ratio is greater than that of meta-silicate and, after cooling and disintegrating, separating the crystals without chemical change thereof.  Suitable displacing bases, of which it is preferred to use two, are calcium oxide, magnesia or alumina with or without an alkali metal; small amounts of fluorides may be added to act as fluxes.  If volume stable zirconia is required, inversion is prevented by the employment of a slight excess CaO which enters the zirconia in solid solution.  The product after cooling is crushed and the silicate gangue dissolved in acids such as hydrochloric or sulphuric, optionally in more than one stage, leaving the zirconia unattached.  Alternatively, classification or flotation may be employed.  Examples relate to zirconia obtained by firing zircon with dolomite in graphite at 2900 DEG F. and with soda and alumina at 2580 DEG F.  Calcium zirconate is obtained by firing zircon and limestone with fluorspar or calcium fluoride and separating the zirconate by classification and acid treatment.
Patent GB-202364-A (GB)
Title: An apparatus whereby compressed air is employed for vertically lifting and lowering loads in the air
IPC: B64C23/00
Filed: 1922-04-27
Abstract: 202,364. Worthington, J. April 27, 1922. Machines supported by direct fluid pressure apparatus; planes, arrangement and constuction of; propelling.-An aerial machine comprises a tank A into which air is compressed by a motor upwards through tubes B, the air escaping through spring-loaded valves C against annular projections D to support the machine. An independent valve E enables air to be directed against a canopy G to control the descent.
Patent GB-603222-A (GB)
Title: Improvements in and relating to a device for determining electrically and optically the position of an object
IPC: G01D5/38
Filed: 1944-06-21
Abstract: 603,222. Photo-electric determination of position. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. June 21, 1944, No. 11812..Convention date, June 21, 1943. Addition to 555, 103. [Class 40 (iii)] [Also in Groups XX and XXXVIII] The parent Specification claims an optical and electrical means for the determination of the position of an object carrying a graduation and comprising an optical objective facing the object, an optical deflector oscillated behind the objective and a slotted grid interposed between the deflector and a .photo-electric cell connected through an amplifier and a relay to energize an instantaneous .flash lamp illuminating a disc carrying an index .and a mark and driven by a synchronous motor. The arrangement is such that the image projected by the objective and oscillated by the deflector periodically coincides with a slot of the grid and causes the lamp to flash intermittently so that the position of the index member in relation to a scale when the lamp is illuminated provides a magnified indication of the position of the object in relation to the axis of the optical system. The modification comprises the provision of a screen 9 with two series of slots 9a, 9b and two separate deflectors 4a, 4b oscillated synchronously with the disc 13, but arranged to produce a different amplitude of the portions of the image of a graduation 2 traversed over the slots 9a, 9b. Each series 9a, 9b co-operates with separate photo-electric cells 10a, 10b connected to amplifiers Va, Vb, relays Ra, Rb and separate lamps La, Lb. The lamps are associated with scales 19a, 19b on the disc 13 which carries index members 14a, 14b for the two scales, the index members appearing in variable positions such as 14<1>a, 14<1>b to reproduce at different ratios the variation of the position of the object as defined by the graduation mark relative to the axis of the optical system. The scales 19a, 19b correspond, for example, to 0.05 mm. and 1 mm. respectively. In a modification, Fig. 2, in which the two deflections 4a, 4b of Fig. 1 are replaced by a single deflector 4, the slide 1 has graduations 2b inclined to the set 2a and the single deflector 4 is oscillated about a predetermined axis to produce movement of the image of the graduations 2a, 2b in the direction a-b on a plate provided with slots 9a, 9b parallel respectively to the graduations 2a, 2b. The arrangement is such that the movement of the image of a graduation 2b for the distance between two adjoining slots 9b moves the image of a graduation2a the distance between the slots 9a. As in the previous arrangement the slots 9a, 9b are located in front of two separate photo-electric cells associated with two flashing lamps and their separate scales.
Patent GB-400601-A (GB)
Title: Improvements in burglarproof coffers or safes
IPC: E05G1/10
Filed: 1932-04-25
Abstract: 400,601. Safes. STENGEL, C., 31, Margit K÷rut, Budapest. April 25, 1932, No. 11813. [Class 44.] The safe and door are constructed of three or more walls enclosing two or more jackets or chambers which contain fluids at different pressures, preferably one below and one or more above atmospheric pressure. These chambers are connected by pipes to an alarm apparatus which operates upon a change taking place in the fluid pressures. The chambers 1, 2 in the safe are connected to corresponding chambers in the door 3 by means of flexible pipes 4, 5. A removable container 55 behind the door hinge is employed to facilitate the mounting of the parts. One form of alarm apparatus is shown in Fig. 9. The vacuum in the chamber 1 acts through a pipe 18 upon a plate 12, preferably of rubber, which supports a weight 15 upon a rod 13. Loss of vacuum in the chamber 1 causes the rod 13 to drop and operate a known alarm apparatus 17. One of the two pipes may be formed of lead and the other, which is arranged inside the larger pipe, may be constructed of glass. The alarm is operated in case of fire, due to fusing of the pipes. A locking apparatus which may be connected to the chambers 1, 2 comprises three locks 35, 30, 29, Fig. 5. Two glass air vessels 34, 25 hang behind the keyholes 33, 24, each connected by a flexible pipe with an air chamber. A key inserted into lock 35 acts upon a bolt 36 and swings the vessel 34 aside, and a key inserted in lock 30 acts upon a bolt 31 to clear the third keyhole 24. If a key is inserted in its wrong order, the air vessel is fractured and the air pressure in chamber 1 or 2 affected. An additional air vessel 37 is swung to the right by a handle on a spindle 39 before the door is unlocked, or else a point on a rod 40 will fracture the vessel which is connected to one of the air chambers. The pivot 39 may also be key-operated. The lock-bolts may be hollow and communicate with the air chambers. A plate of elastic metal may guard the inside of a keyhole, not protected by a glass vessel, which is pushed aside by a key thrust into the keyhole. If the door 3, Fig. 1, is left unlocked and the door is opened, pivoted levers 45, 43 cause a pointed projection to pierce an air vessel 42 through the action of an end 46 pressing on a projection x. To release this apparatus, an element 48 is moved to the left in co-operation with one of the lock-bolts, and pushes back the lever 45. An additional safety device comprises two sliding bolts perpendicular to one another, with projecting ramps which are allowed to pass one another if the bolts, which are connected to bolts 31, 36, are moved in the correct sequence. One chamber may be contained within the other in the form of a screen of pipes connected to one another. The alarm apparatus may be electrically operated, the wires passing through the pipes communicating with the air chambers.
Patent GB-1468391-A (GB)
Title: Vertical tube type cracking furnace
IPC: C10G9/20
Filed: 1974-03-18
Abstract: 1468391 Tubular cracking furnace MITSUI SHIPBUILDING & ENG CO Ltd 18 March 1974 [22 March 1973] 11830/74 Heading C5E [Also in Division F4] A tubular cracking furnace comprises a combustion chamber 1, a space above the combustion chamber surrounded by heat resisting walls 25, 26, 27, a convection-heating section 2 above said space, a plurality of reaction tubes 6 suspended on the combustion chamber by support members 15 connected to weights 16 located in the space, means 7 for conveying process fluid through the convection heating section, means 18 for conveying the fluid to the reaction tubes and gas passages 3 symmetrically provided outside the space and connecting the combustion chamber and the convection heating section. The furnace may be used to produce ethylene.
Patent GB-563078-A (GB)
Title: Solutions of polyamides
IPC: C08J3/09
Filed: 1941-09-17
Abstract: Synthetic linear polyamides are dissolved in solutions comprising solutions of metal inorganic salts, e.g. chlorides, bromides or nitrates of lithium, calcium and zinc, in aliphatic alcohols having less than six carbon atoms.  Polyhexamethylene adipamide chips are dissolved in at 25 per cent solution of calcium chloride in methanol. The polyamide may be obtained in finely dispersed form by diluting such solutions with a non-solvent until precipitation of the polyamide takes place; the same alcohol as that used to make the solution may be used as diluent.  Specification 461,236 is referred to.
Patent GB-705078-A (GB)
Title: Cyclic sulphites and carbonates of 1-p-nitrophenyl-2-haloacetamidopropane-1,3-diols and processes for the production of the same
IPC: C07D327/10
Filed: 1951-05-22
Abstract: Cyclic sulphites of the general formula <FORM:0705078/IV(b)/1> (wherein R represents a halogenated acetyl radical) are manufactured by reacting a dl- or l-q -1-p-nitrophenyl-2-haloacetamidopropane -1:3- diol with a thionyl halide in an excess of the thionyl halide as solvent at a temperature below about 50 DEG C. (preferably 20-35 DEG C.) under anhydrous conditions, adding an inert organic solvent (e.g., chloroform, methylene dichloride, ethylene dichloride, benzene, xylene, carbon tetrachloride, ether or toluene) and collecting the cyclic sulphite thereby precipitated from the reaction mixture. Examples describe the action of thionyl chloride on l- and dl-q -1-p-nitrophenyl-2-dichloro-, -dibromo-and-difluoroacetamidopropane -1:3- diol, dl-q -1-pnitrophenyl -2-chloro- and -iodo-acetamidopropane -1:3-diol, and l-q -1-p-nitrophenyl-2-fluoro- and-fluorochloro-acetamidopropane -1:3-diol, and of thionyl bromide on l-q -1-p-nitrophenyl-2-chloroacetamidopropane -1:3-diol and dl-q -1-p-nitrophenyl-2- fluoroacetami dopropane -1:3-diol.  Cyclic carbonates of the general formula <FORM:0705078/IV(b)/2> are manufactured by reacting a dl- or l-q -1-p-nitrophenyl-2-haloacetamidopropane -1:3- diol with phosgene at a temperature below about 20 DEG C. (preferably -10 DEG  to +10 DEG C.) in an inert organic solvent under anhydrous conditions or in a substantially anhydrous tertiary amine.  Examples describe the treatment of chloramphenicol in ethylene dichloride and of dl-q -1 - p - nitrophenyl - 2 - dichloracetamidopropane -1:3- diol in pyridine. Other tertiary amines specified are N-ethylpiperidine, dimethylaniline, N-methylmorpholine and tri-ethylamine.ALSO:Compounds possessing antibiotic properties, of the general formula <FORM:0705078/VI/1> (wherein R represents a halogenated acetyl radical and Y an -SO- or -CO- group), are suitable for incorporation into uncoated pills, elixirs, syrups and candies for oral administration.
Patent GB-167244-A (GB)
Title: Improvements in or relating to constructional toys
IPC: A63H33/12
Filed: 1920-04-29
Abstract: 167,244. Greenwald, M. April 29, 1920. Mechanical constructions, details for building up.-Relates to constructional toys built up from metal strips which are provided with star-shaped or angularly-formed holes so that the strips can be secured together at various angles. Figs. 1, 3, and 4 show metal strips with holes of different forms. According to the present invention, the connecting-pieces are formed from flat bendable sheet metal and of the form shown in Fig. 2. For bending the fastening-device after insertion, a bent clip as shown in Fig. 7 is used.
Patent GB-106382-A (GB)
Title: Improvements in Carburetters for Internal-combustion Engines.
Inventor: HUFFAM STANLEY GORDON CROSSLEY
IPC: F02M1/00
Filed: 1916-08-25
Abstract: 106,382. Huffam, S. G. C. Aug. 25, 1916. Spray carburettors.-A singlefuel carburettor is readily converted, without structural alteration, into a bi-fuel carburettor, by replacing the usual nozzlecarrying plug by a three-waycock. This comprises a plug 6, the casing 9 of which is screwed at 15 into the carburettor body, carries the fuel nozzle 11, and is bored at 10, 12, 13. The plug 6 has a diametral bore 7 and a radial bore 8 at rightangles thereto. When in the position shown, the plug admits petrol from the bore 12; when turned anti-clockwise through ninety degrees, it admits paraffin through channel 17, hole 18 and bore 13, and when turned a further ninety degrees in the same direction it admits both petrol and paraffin.
Patent GB-968212-A (GB)
Title: Improvements in or relating to nuclear reactor control means
IPC: G21C7/22
Filed: 1961-04-04
Abstract: 968, 212. Controlling reactors. BABCOCK & WILCOX Ltd. April 4, 1961 [April 4,1960], No. 12086/61. Heading G6C.  A reactor control member consists of a body 2 whose diameter increases from one end enclosed in a tube 1 of corresponding internal shape, the annular space between body and tube containing a neutron-absorbing fluid. Relative movement produced by screw 5 alters the cross-sectional area and hence the volume of this space; surplus fluid is contained in reservoir 7 outside the reactor core. Body 2 is hollow and its surface may be conical, paraboloid or of cosine form, or any convenient shape; a cosine form gives the annular space its greatest volume per unit length at an intermediate position, which can be made to coincide with the region of highest flux. Suitable fluids are BF 3 , B 2 H 6,  B 2 0 3 , Kr enriched with Kr<SP>83</SP>, Xe enriched with Xe<SP>131</SP> , vapours of Cd or its compounds; materials may also be added which under irradiation form suitable fluids, e.g. Br, Se, Te. The tube and body are of graphite, Al 2 O 3 ,SiC, BeO, quartz, Zr, Al; ceramic materials may be lined with Cr, Mo., Ni, V.
Patent GB-790786-A (GB)
Title: Improvements in or relating to radius shaping apparatus
IPC: B23D3/04
Filed: 1955-04-27
Abstract: 790,786. Copy-planing. WILSKER, R. April 27, 1956 [April 27, 1955], No. 12089/55. Class 83 (3). Apparatus for cutting a concave or convex curve S comprises a segmental toolslide 5 having a toothed periphery engaged by spaced pinions 14 which are rotated to move the slide in an arcuate path. The pinions are rotated by the handle 15 through worm gearing 11, 12. A gauge 17, Fig. 5, having a tool-engaging edge 20 can be mounted in a slideway 21 for setting the tool 9.
Patent GB-741107-A (GB)
Title: Improvements in and relating to the production of terephthalic acid or esters thereof
Inventor: THOMPSON DENNIS
IPC: C07C51/25
Filed: 1953-05-01
Abstract: Terephthalic acid or acid esters or diesters thereof are made by treating a cyclohexadiene-1,4-dicarboxylic acid or an acid ester or diester thereof at 50-300 DEG  C. with a gas containing free oxygen. An oxidation catalyst, comprising a soluble salt of cobalt, manganese, iron, nickel, or copper, e.g. cobalt naphthenate, may be present and an organic solvent such as octanoic acid, caprylic acid, or glacial acetic acid may be used. In examples, cyclohexa-1,4-diene-1,4-dicarboxylic acid is treated with air while (1) dissolved in caprylic acid in presence of cobalt naphthenate, (2) dissolved in octanoic acid.
Patent GB-513948-A (GB)
Title: Improvements relating to metal vapour electric discharge lamps
IPC: H01J61/54
Filed: 1938-04-22
Abstract: 513,948. Metal-vapour lamps. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., and ALDINGTON, J. N. April 22, 1938, No. 12132. [Class 39 (i)] In metal-vapour discharge lamps the main electrodes are of unactivated refractory metal of . small mass, and there is disposed adjacent one or both of the main electrodes an activated auxiliary electrode so arranged that after the discharge has been started the auxiliary electrodes take no further part in the discharge. The main electrodes may be in the form of helices of tungsten or thoriated tungsten, and the auxiliary electrodes may consist of a tungsten helix enclosing a core of emissive material such as alkaline earth oxide or silicate. As shown in the drawing, the lamp consists of a quartz envelope 4 supported on the foottube 2 of an outer jacket 1 by rods 9,10, 17 , 12. The rods 9,10 form the leads to the main electrodes 5 and are connected externally to the contact 8 and cap 3. The rods 11, 12 are connected to the auxiliary electrodes 6 and joined to the ends of a high resistance 7. The tube has a filling of neutral gas such as argon and a quantity of mercury which, when completely evaporated, produces the desired pressure. Pressures range from 1 to 15 atmospheres.