baber/WOPTO huggingface dataset:
Patent GB-523753-A (GB)
Title: Improvements in or relating to pulverisers
IPC: B02C15/12
Filed: 1939-01-13
Abstract: 523,753. Ball-and-ring mills. BABCOCK & WILCOX, Ltd. Jan. 13. 1939, No. 1253. Convention date, April 22, 1938. [Classes 23 and 59] In a ball-and-ring mill in ground material is entrained by an upward current of air adjacent the rings. only one stage is provided and the material flows from the inner to the outer side thereof whilst the lower ring which is rotary is formed with a ball track the outer edge whereof and the adjacent upper surface of the ring are below the centres of the balls. As shown in Fig. 2, a yoke 10 mounted on a driven shaft 8 carries a lower grinding ring 11 keyed to the yoke. Balls 13 run in a race 12 in the ring 11 and are loaded by an upper ring 14 and spider 15 guided in vertical grooves 18 on the casing, the spider being actuated by springs 19. An air supply casing 28 is arranged eccentrically around an air inlet 29, the air entering at the side of largest cross-section and flowing in opposite directions around grinding ring. The air inlet leads to a passage of venturi-shape in cross-section formed between a ring 32 attached to the casing 1 and the periphery of the grinding ring 11. The velocity of the air through the passage prevents coarse material falling therethrough but allows pyrites and heavy particles to fall through and be engaged by a scoop 75, pivoted to the yoke 10, for deposition through an orifice 80 leading to a chamber 81. The scoop 75 is formed by a depending, angle-shaped, piece of metal which forms a pocket and the orifice 80 is adapted to be closed by a sliding gate operated by rack and pinion when the chamber 81 is to be emptied. A part 65 of the ring 32 is formed as a door under the control of a spring 69 and is adapted to be opened for the discharge of tramp metal. Material is fed by a disc-feeder 20 to a shoot 21 and falls through spider 16 to the ring of balls, the ground material being entrained by the air blast issuing through orifice 29 and carried through a rotary separator 46 to outlets 60 controlled by valves 62. The rotary separator is mounted on the yoke 10 and comprises inclined plates 46, Fig. 13, secured to tubes or bars 45, the outer portion of each blade forms with the rod a pocket extending the height of the classifier and in which oversize particles collect. These particles slide down the plates and pass through a tube 51 into a distributing device 54, Fig. 17, comprising upper and lower annular discs separated by vertical, inclined, partitions 55 which are staggered to provide discharge outlets 56 which may be made adjustable in size by movable plates 57. The coarse material discharged through the outlets 56 fall into the space inside the row of balls and is reground. Specifications 523,768, 523,769 and 523,770 are referred to.
Patent GB-876235-A (GB)
Title: Linear dimension gaging apparatus
IPC: G01B13/10
Filed: 1958-01-14
Abstract: 876,235. Linear-dimension gauges. SHEFFIELD CORPORATION. Jan. 14, 1958 [Jan. 15, 1957], No. 1289/58. Class 106 (2). Gauging-apparatus comprises a plurality of contact means, at least one of which, 32, is relatively movable to the body 20 by which it is supported, first gauging means 41, 42 responsive to relative movement between the body 20 and the contact 32 through a first gauging range and further gauging means 70 carried by the contact 32 and operative through a second gauging range as a final dimension is approached, the gauging means 70 contacting the workpiece with substantially no contact pressure thereby avoiding marring or distortion at the final dimension. Fig. 3 shows an apparatus for gauging the diameter of the inner raceway 16 of a ball-bearing during a grinding operation. Contacts 32, 50, are spring-urged towards the raceway 16 and carry arms 40, 54 co-operating with fluid-leakage gauging orifices 41, 42; 56, 57 respectively. Each contact 32, 50 has further gauging means in the form of a freely rotatable ball 60, 70 held in position by a snap ring 65 and seated in the mouth of an orifice 62. Fig. 4 shows the connections between the various orifices and four flow indicators in the form of tapered tubes 75. In operation the apparatus is adjusted until the tubes 75, 76 give equal indications, showing that arms 40, 54 are equally spaced from orifices 41, 57. As grinding proceeds, the tube 85 connected to orifices 42, 56 indicates the movement of contacts 32, 50 until their limits of movement are reached. Finally, the tube 95 indicates the last part of the grinding to a very high amplification as the balls 60, 70 move outwards under the action of air issuing from the orifices 62. Fig. 7 shows a hand-held modification for measuring the diameter of an outer raceway. A body 100 carries a fixed contact 101 and a sliding contact 110. An orifice 125, provided in the body 100, co-operates with an insert 140 which moves with the sliding contact 110 for the initial gauging, and final gauging is carried out, when the insert 140 abuts the orifice 125, by a ball mounted in the contact 110 in a similar manner to the balls 60, 70. The body 100 is inserted in the bearing raceway by closing contacts 101, 110 together by gripping a pin 150, and is centralised by a fixed contact 115. Insulating sleeves 120, 121 are provided to minimize the effect of heat from the operator's hand.
Patent GB-1394151-A (GB)
Title: Apparatus and method for converting mos circuit signals to ttl circuit signals
IPC: H03K19/088
Filed: 1973-01-10
Abstract: 1394151 Transistor logic circuits HONEYWELL INFORMATION SYSTEMS Inc 10 Jan 1973 [18 Jan 1972] 1370/73 Heading H3T An interface between a MOSFET memory and a TTL circuit comprises: an input network 51 for converting an MOS circuit signal into one compatible with TTL circuits; a storage network 52 which is enabled to respond to the output of network 51 by a first control signal 12 and which is enabled to maintain the signal by a second control signal 13; and an output network 53 which couples the output from network 52 to an output terminal 11 when a third control signal 14 is applied to it. In a detailed circuit Fig. 2 (not shown) the input stage 51 includes a diode (D1) which clamps the output from this stage until its input changes sufficiently to cut it off, and the NAND gates 63, 64 comprise double emitter transistors (Q14, Q4). The circuit 54 which determines the operating threshold of stage 51 includes a resistor (R15) and transistor (Q18) which provides temperature compensation for the memory.
Patent GB-343267-A (GB)
Title: An electrically operated machine for drying the hands and face
IPC: A47K10/48
Filed: 1930-01-15
Abstract: 343,267. Air douches ; hand &c. driers. McKERLIE, H., 69, Upper Chorlton Road, Manchester. Jan. 15, 1930, No. 1420. [Class 81 (ii).] Air douches for drying the hands or face comprise a fan 1B mounted on a spindle 1A passing through a conical or pyramidal baseplate 2 and driven by an electric motor 1 secured beneath the baseplate as by screws 3. The fan is enclosed in a conical casing 5 of metal porcelain or glass and draws air through apertures 4 in the plate 2. The casing 5 has a cylindrical extension 6 containing an electric heating coil wound upon a cruciform former 7 and having pins 8 engaging sockets in terminal base 9. The members 5, 6 are covered by a cowl 10 and are provided with a delivery funnel 11. The whole apparatus may be supported on a pedestal 12 or on a wall bracket or may be suspended in an inverted position.
Patent GB-232336-A (GB)
Title: Improvements relating to machines for moulding plastic substances
IPC: B28B3/02
Filed: 1924-01-18
Abstract: 232,336. Smith, W. H. Jan. 18, 1924. Stationary-mould machines ; pressing dies.-A press, particularly for curved tiles, comprises a head B carried by rods B<1> pivoted at B<3> adapted to be swung aside from the mould K<3> to give a trowelled finish to the article. The radius of swing of the head is such that it gradually lifts from the mould. A lever H, pivoted at H<1> to an extension of the mould, facilitates swinging of the head, the operator pressing with one hand against the die J and operating the lever with the other to avoid any tendency to overturn the machine. The lever is normally held by a spring H<3> against a stop H<2> and acts as a stop for the head. Where the die J is furnished with embossing portions, these are adapted to be withdrawn into the die by screw &c. mechanism to permit of the swinging movement of the head.
Patent GB-1020676-A (GB)
Title: Purification of acetylene and ethylene
IPC: C07C7/11
Filed: 1965-01-13
Abstract: In the recovery of acetylene and ethylene from a pyrolysis gas also containing diacetylene by removing diacetylene with a selective solvent, absorbing acetylene in a selective solvent and recovering ethylene from the residual gas the acetylene absorption is effected in at least two stages with a higher pressure in the later stage. Diacetylene may be removed with dimethylformamide or acetone and preferably C3+ hydrocarbons are then absorbed in a naphtha solvent which is then used as part or all of the feed to the pyrolysis.  The acetylene solvent may also be dimethylformamide or acetone and the first step may absorb 50-80% of the acetylene.  After compression the acetylene partial pressure should not exceed 2.5 atmospheres absolute.  Ethylene may be recovered using propane and/or propylene as solvent.ALSO:In the recovery of acetylene and ethylene from a pyrolysis gas also containing diacetylene by removing diacetylene with a selective solvent, absorbing acetylene in a selective solvent and recovering ethylene from the residual gas, the acetylene absorption is effected in at least two stages with a higher pressure in the later stage.  Diacetylene may be removed with dimethylformamide or acetone and preferably C3+ hydrocarbons are then absorbed in a naphtha solvent which is then used as part or all of the feed to the pyrolysis.  The acetylene solvent may also be dimethylformamide or acetone and the first step may absorb 50-80% of the acetylene.  After compression the acetylene partial pressure should not exceed 2,5 atmospheres absolute.  Ethylene may be recovered using propane and/or propylene as solvent.  In the Figure (not shown) cracked gases enter diacetylene absorber 13, and overhead gases leave at 20 for absorber 21 where C3+ hydrocarbons are removed. The gases then pass into the two stage acetylene removal towers 28, 29 and thence to ethylene absorber 49.  Acetylene and ethylene are recovered from the bottoms products respectively in reboiler 40 and stripper 45, and in reboiler 52.
Patent GB-310300-A (GB)
Title: Improvements in or relating to leg-rests
IPC: A47C16/02
Filed: 1928-01-17
Abstract: 310,300. Moore, A. E. Jan. 17, 1928. Leg rests.-A vertically and angularly adjustable leg-rest consists of a rest proper 21, which may be upholstered, pivoted to a trestle support consisting of frames 16, 19 the spreading apart of which can be adjusted, as by a strap 24. to give vertical adjustment of the rest proper 21. Reference has been directed by the Comptroller to Specification 2537/99.
Patent GB-1025775-A (GB)
Title: Improvements in or relating to temporary roads
IPC: E01C9/08
Filed: 1964-01-14
Abstract: 1,025,775. Metallic fabrics. R.S.COLQUHOUN. March 15, 1965 [Jan. 14, 1964], No. 1570/64. Heading D1K. [Also in Division E1] A mat for a temporary roadway comprises upper and lower metallic mesh strips with sheet material 16 between, the upper strips being hinged, 22, and the lower strips being independant, the material 16 extending through more than one strip. The upper mesh strips are folded over at the mat edges and secured to the lower strips to retain a plastic sheet 16 and to provide housing for longitudinal cables which may be anchored to the ground.
Patent GB-626507-A (GB)
Title: Calender
IPC: D06C15/02
Filed: 1947-01-17
Abstract: 626,507. Finishing fabrics ; calendering paper. DUNGLER, J. Jan. 17, 1947, No. 1642. Convention date, Feb. 20, 1946. [Classes 42 (i) and 96] A calender comprises a set of lower rollers mounted on a fixed frame, an upper frame movable upwardly relatively to the fixed frame, and having mounted therein one or more central rollers made of compressed fibrous material and adapted to rest on the lower set of rollers, and an upper set of rollers adapted to rest upon the central roller or rollers, the latter being so mounted that when the upper frame is lifted the central roller or rollers is or are disengaged from both the upper and lower sets of rollers. The lower rollers 2, 3 are mounted on a frame 1, to which a pair of arms 4, carrying the upper rollers 6, 7 is pivoted at 5. A central roller 9 normally rests upon the lower rollers, and is provided with removable stub axles 9a fitting in slots 8 in lugs depending from the arms 4. Rods 10 connect the arms 4 to a weighted lever 11, a handle 14 being provided to raise the latter, and thereby the arms 4 ; this first lifts the rollers 6, 7, clear of the roller 9, and then lifts the latter from the rollers 2, 3. The rollers 2, 3, 6, 7, are chain-driven from an electric motor which drives intermediate sprockets co-axial with the shaft 5 ; similarly, steam is supplied to them through pipes 35, 36, which branch off from the pipe 33 through joints in a box coaxial with the shaft 5. One of the upper set of rollers may be made of fibrous material. Two superposed central rollers may be used, one in contact with the upper, and the other with the lower set.
Patent GB-178198-A (GB)
Title: Improvements in fastenings for attache cases and the like
IPC: A45C13/10
Filed: 1921-01-11
Abstract: 178,198. Loeb, C. N., and Martin, H. H. Jan. 11, 1921. Fastenings, hook, for attachÚ cases.-An auxiliary fastening for attachÚ cases &c. consists of an arm a pivoted to a plate f on the body of the case and having a lip or hook-end c which can be sprung or forced over the end of the lid b<1> to prevent its opening, the tendency of the lid to open keeping the fastening engaged. The arm a is bent in order to lie closely to the lid and body of the case and has a raised finger-piece g for operation. The underside of the lip c has a boss d which fits into a recess in a plate e on the lid, preventing accidental release of the arm a. In a modification, the arm a is cut to form a hook m as shown in Fig. 4, which can be moved over a stud i when the lid is tightly pressed to the body of the case.
Patent GB-782247-A (GB)
Title: Improvements in or relating to diving pressure chambers
IPC: B63C11/32
Filed: 1956-01-18
Abstract: 782,247. Diving chambers. DRAGER, O. H. Jan. 18, 1956 [Jan. 18, 1955], No. 1757/56. Class 68(2) A practise diving pressure chamber 1, which permits persons trained therein freedom of movement unhampered by safety lines, is provided with a safety platform 2, e.g. a grating, which can be raised from the bottom of the chamber to lift the trainees out of the water, in the event of danger, without the necessity of substantially modifying the pressure conditions, e.g. in a decompression operation. The platform 2 rests upon float elements 3 which are normally flooded, hut from openings in the bottom of which, water can be expelled by compressed air, or gas, when it is desired to raise the platform 2. The compressed air, or gas, is introduced through flexible hoses 4 which are provided with shut-off valves 5 and are connected either to a pressure vessel 6, or to a compressor, not shown. The air can be removed from the float elements 3, e.g. by a valve 8 on the supply piping. One, or more, guides 9 are provided, the entry ladder preferably being used as a guide. Stops 7 on the guides 9 limit the uppermost position of the platform 2. In a modification the platform 2 is suspended by ropes which have weights for lifting the platform when a draw cable, for pulling the plate downward, is released. In a further modification the plate is movable by a hydraulic piston and cylinder unit.
Patent GB-1045326-A (GB)
Title: Preparation and use of grignard reagents
IPC: C07F3/02
Filed: 1964-01-15
Abstract: Hydrocarbons are prepared by the hydrolysis of Grignard reagents R1RC4H7MgX, wherein R1 is hydrogen or an alkyl radical, R is a radical free of substituents reactive with a Grignard reagent and X is halogen.  The Grignard reagents are prepared (see Division C2) by the addition reaction between an olefin R-CH = CH2 and a Grignard reagent R1CH2CH2MgX, in the presence of a Ti or Zr containing catalyst, addition taking place usually through the b -carbon atom of the olefin and either the a - or b -carbon atom of the starting Grignard reagent.  In examples, a mixture of 3-methyl hexane and 2-ethylpentane is prepared from ethylmagnesium bromide and 1-pentene; mainly 2,3-dimethylnonane is obtained from n-propylmagnesium bromide and 1-octene; and a mixture of hexane (by a substitution reaction), nonanes, particularly 2,3-dimethyl heptane, and higher hydrocarbons is obtained from 1-hexene and n-propylmagnesiumbromide.ALSO:Olefins R-CH=CH2 react with Grignard reagents R1CH2CH2MgX in a Grignard solvent in the presence of a halide, alkoxide or aryloxide of titanium or zirconium to give, when the weight ratio of Ti or Zr to Mg is 0.25 or more, addition compounds R1RC4H7MgX instead of substitution compounds as in the parent Specification.  R is a monovalent radical free of substituents reactive with the Grignard reagent, R1 is hydrogen or an alkyl radical and X is halogen.  When R-CH==CH2 is styrene, addition takes place through its a -carbon atom-otherwise addition is mainly through the b -carbon atom of the olefin.  Where possible the R1 group isomerises to give a secondary or tertiary group.  Addition may take place through either the a - or b -carbon atom of the Grignard reagent, for example, reaction between ethyl magnesium bromide and 1-pentene followed by hydrolysis yields a mixture of 3-methyl hexane and 2-ethylpentane.
Patent GB-644865-A (GB)
Title: Improvements in or relating to a shoe sole and process for making same
IPC: A43B13/00
Filed: 1947-01-21
Abstract: 644,865. Compound fabrics. STEVENS, A. H. (Boston Woven Hose & Rubber Co.). Jan. 21, 1947, No. 1886. [Class 140] [Also in Group VII] A shoe sole is composed of tough flexible resinous material such as laminated plastic vinyl resin and includes in its structure a base ply having insignia displayed thereon which is displayed to view in the shank portion of the sole by a transparent overlying ply integrally bonded to the sole. The plies from which a composite strip is prepared from which the soles are formed may be progressively bonded together. Specifications 473,899, 500,925, [both in Group V], 584,291, [Group VII], and 644,858 are referred to.
Patent GB-381429-A (GB)
Title: Process and apparatus for the simultaneous recovery and purification of benzol contained in benzolated oils
IPC: C10C1/10
Filed: 1932-01-21
Abstract: Benzol is recovered in a continuous operation from oil used for washing gases by heating the oil with subsequent expansion in two stages, the second stage being under vacuum, rectifying the vapours to remove light impurities, e.g. carbon disulphide and impurities heavier than benzol, washing with acid and alkali the separated benzol, and finally distilling it under vacuum by heat exchange with the impure vapours to remove resins.  The benzolated oil from a reservoir A is pumped through recuperators C, C<1>, and then through a coil D heated by steam.  The oil issues with reduction of pressure at a valve 6 into a rectifying column E, E<1>.  The lighter fractions are condensed in condensers F, G, the impurities of low boiling-point remaining uncondensed and being separated in a separator g and removed through a test gauge W while the condensate is returned as reflux through a pipe 55.  The toluolxylol fraction is drawn off through a pipe 16, condenser T and test gauge U.  The benzol fraction whose rectification is controlled by a heat exchanger V, V<1> is drawn off through a line 11 and is treated in the lower part Z of a column filled with porcelain balls with sulphuric <PICT:0381429/III/1> acid from a tank R and in the upper portion Z<1> with carbonate of soda lye from a tank R<1>.  The benzol is distilled to remove resins in the condenser F and the vapours are condensed in a condenser Q in which vacuum is produced to reduce the boiling-point of the benzol by connecting the condensate outlet 14 with an injector S operated by steam which is afterwards used in the heat exchanger V. The heavy residues and debenzolated oil are passed through a pipe 25 to a column K, L operated under vacuum produced by connecting the condensate outlet M of the condenser M to an ejector N operated by steam which is also passed to the lower part V<1> of the heat exchanger V, V<1>.  Condensate from the condenser M is returned to the column as reflux and the final reflux is removed to a chamber L<1> where the last traces of solvent are removed by steam. The residue consists mainly of naphthalene and is removed through a barometric pipe 31 to crystallizers 33.  The purified oil from the bottom of the column K is passed through a pipe 28, recuperators C, C<1>, and a water cooler to a reservoir I.
Patent GB-811638-A (GB)
Title: Improvements in and relating to polyacrylonitrile solutions
Inventor: MARSH ARTHUR EDWARD LEE
IPC: C08J3/03
Filed: 1956-01-20
Abstract: Polymers containing in the polymer molecule not less than 80 per cent of acrylonitrile are dissolved in a solvent mixture consisting of water, methyl alcohol or ethyl alcohol or both, and at least one highly water-soluble salt selected from alkali metal, alkaline earth metal, ammonium and guanidine thiocyanates, lithium bromide and iodide, sodium iodide and zinc chloride, the salt constituting at least 35 per cent of the solvent mixture and the alcohol or mixture of alcohols constituting from 4 to 10 per cent of the solvent mixture.  Polymers specified are polyacrylonitrile and copolymers of acrylonitrile with methyl acrylate, vinyl acetate and styrene. Fibres may be spun from the solutions by extrusion into water.
Patent GB-635770-A (GB)
Title: Improvements in or relating to very high frequency testing apparatus
IPC: G01R27/06
Filed: 1947-01-22
Abstract: 635,770. Frequency measurements. WHITAKER, A., and ASHDOWN, G. L. Jan. 22, 1947, No. 2016. [Class 37] [Also in Group XL (b)] A wave-guide testing apparatus comprises a device for determining the standing wave ratio in the guide and means for indicating the wavelength at which any standing wave ratio exists. The wave-guide under test 1 is connected to a rotating probe standing wave detector, a cavity wave meter 6 and a source 3 of high frequency energy. The standing wave detector comprises a rotor 22 carrying a probe which projects a constant length into a waveguide 23 during 120 degrees of rotation. The rotor carries a crystal detector, the amplified output of which is fed to vertical deflection plates of a cathode-ray oscilloscope 29. The cavity wave meter 6, coupled to an extension of guide 23 by a small hole, is provided with a tuning plunger driven by a spring-loaded rod 7 bearing on a cam 8. The cam 8 is so designed that a linear relation is obtained between the angle of rotation and the displacement of the plunger over the required wavleength range. The amplified output of a crystal detector associated with the wave meter 6 is fed to the vertical deflection plates of a cathode-ray oscilloscope 16. The time base 19 is controlled by a potentiometer with a contact 21 driven by the cam-shaft and is arranged to block out the trace during the fly-back. If the change in wavelength corresponding to one sweep of the cathode-ray tube trace is shown, the wavelength in the guide, indicated by a vertical deflection, can be determined. The wave meter is so arranged that the timing plunger comes to rest outside the working range when the wave meter is not in use. By suitable switching arrangements the same oscilloscope may be used for both wavelength and standing wave ratio measurements. Specifications 597,262, [Group XL], and 635,768, are referred to.