baber/WOPTO huggingface dataset:
Patent GB-228621-A (GB)
Title: Improvements in and relating to means for securing closed with pressure the doors ofcold storage chambers large or small
IPC: E05C9/06
Filed: 1923-11-07
Abstract: 228,621. Wilson, J. E., Wilson, J. Y., and Mathison, W. Nov. 7,1923. Multiple-bolt fastenings, - Doors of cold storage chambers &c. are secured and jammed tightly into their seatings by a number of bolts taking into tapered sockets and operated from either side of the door by a spirally ribbed disc engaging racks on the bolts. The disc a has a spiral rib a<1> engaging racks c<1> on each of the bolts c and is operated from either side of the door bv handles connected bv a spindle b. The sockets e for the bolt ends are tapered so as to wedge the door into its seating. The hinge members have hinge pins working in elongated slots to allow the necessary lateral movement of the door to jam it into its seating. The door has a tapering fit in the seating to facilitate close fitting.
Patent GB-158710-A (GB)
Title: Improvements in means for retaining the needles of knitting machines in position in their slots
IPC: D04B15/00
Filed: 1919-11-12
Abstract: 158,710. Kihlqvist, J. L., and Linden, G. Nov. 12, 1919. Needles, retaining in position in tricks of bed. -To prevent the needles 3 from sliding down the tricks of the bed 1 of a parallel or other machine, they are constructed with bends or offsets 8 which co-operate with spring balls 5 or the like mounted in recesses made in the walls of the needle tricks.
Patent GB-280166-A (GB)
Abstract: 280,166. Bocrner, A. Nov. 8, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Plug couplings combined with electric switches. Thermal interrupters, comprising an adjustable fixed contact 4 adapted to engage a contact 3 mounted on a bendable strip 1 heated by a winding 17 are mounted on an upright 6, 7, 8 which consists of two metal parts 6, 8 forming the terminals of the circuit, and an insulating part 7 situated between them, the whole device being adapted for mounting in the plugs of couplings in flashing lamps, in mountings for lamps &c. Fig. 4 shows the device mounted in a double-ended plug, and held in place by a cement-stopper 16. The metal portion 6 is bored at 9 to form a socket and a plug pin 15 is screwed into the metal portion 8.
Patent GB-218178-A (GB)
Title: A frame, to make possible in the same apparatus, solvent recovery by distillation after extraction of a substance has been made by that solvent
IPC: C11B1/10
Filed: 1923-11-07
Abstract: 218,178. Lacy, S. A. de. Nov. 7, 1923. Addition to 206,711. Extracts, making.-Modifications in the device described in the parent Specification, for carrying out in one apparatus the operations of making an extract by means of a solvent and recovering the solvent by distillation, comprise (1) modified forms of the support which holds the container of the substance to be extracted, (2) modifications in the construction of the drip-point, and (3) modifications in the construction of the main rod of the device. (1) The container is held to its support by means of a pin which passes through holes in the container and suitably engages the support. As shown in Fig. 1, the pin N passes through holes in the container C and in an arm U formed at the end of the main rod S. Altematively, the arm U may be bent to form a depression in which the pin rests. In the form shown in Fig. 3, the arm U is bent so that its extremities lie within the container C. In the form shown in Fig. 4, the arm U is straight and itself engages the holes in the container. The container may be pervious to the solvent or may be emptied from time to time by a siphon. (2) The drippoint D may be of any shape so long as it is symmetrical about the longer axis of the platform P and does not extend to the junction of the upright portion of the arm U and the underside of the platform P. (3) The main rod S may be provided with a shoulder which may lie directly against the lower surface of the stopper of the extraction vessel or may engage the end of a sleeve which lines and projects from the orifice in the stopper through which the rod is pushed. Instead of being recessed at the top, as described in the parent Specification, the rod S may be slotted to receive the key by which the device is turned.
Patent GB-698448-A (GB)
Title: Improvements in or relating to endless chain scraper conveyors
IPC: B65G19/10
Filed: 1951-11-30
Abstract: 698,448. Endless scraper conveyers. DRIESEN J., [trading as BISCHOFF-WERKE KOMMANDIT-GES.]. Nov. 30, 1951. [Dec. 14, 1950] No. 28116/51. Class 78 (i). In a scraper conveyer of the kind wherein the scrapers, Fig. 1, are detachably secured at their ends to a pair of endless chains and guided in grooves 7 in a trough 10, the scrapers are formed with recesses 3 for receiving horizontal links 4 of the chains, these links being fitted over projections 5 on the scrapers and secured in position by members 6 pivotally mounted on the scrapers by bolts 8 and engaging under projecting pieces 9 on the scrapers. In a modification, Fig. 4, the chains engage in recesses 12 in shoes 11 pivotally connected at 15 to the central portion of the scrapers and are secured by tongue-like extensions 16 on the scrapers which are formed with projections 17 adapted to bear on the chain links.
Patent GB-867230-A (GB)
Title: Process for the production of dimethylols
IPC: C07C51/14
Filed: 1957-09-06
Abstract: An aliphatic primary dimethylol is produced by subjecting an olefinically-unsaturated fatty acid having at least 16 carbon atoms in the molecule to hydroformylation, treating the product with liquid water at elevated temperature and under pressure to purify the aldehydomonocarboxylic acid formed, and converting the purified aldehydo-monocarboxylic acid into the dimethylol by the two-stage hydrogenation process described and claimed in Specification 867,229. The product may be fractionated under high vacuum after the separation of the hydrogenation catalyst. When the hydroformylation is carried out batchwise it is preferred to introduce the unsaturated acid into the hydroformylation zone during 50% to 90% of the period required for the carbon monoxide and hydrogen addition.  In the example a mixture of unsaturated fatty acids containing oleic, isoleic, linoleic, linolenic and clupanodic acid is hydroformylated using a cobalt sulphate solution containing iron and hydroquinone as catalyst; the mixture of aldehydo-carboxylic acids is washed with liquid water at elevated temperature and pressure and hydrogenated according to the process described in Specification 867,229.  The product consists mainly of heptadecane-dimethylol with some heptadecane methylol.  Specification 734,030 also is referred to.
Patent GB-208297-A (GB)
Title: An improved machine for bending wire, hoop iron, or the like
IPC: B21F1/00
Filed: 1922-10-17
Abstract: 208,297. Beere, A. W. Oct. 17, 1922. Angular bending; formers; shearing-adjuncts.- In a machine for bending wire, hoop-iron, &c into rectangular or other formations having a number of fiat sides, the wire &c. is bent round a number of spaced projections one a rotating face-plate which is provided with gripping jaws and a cutter, both of which are operated by stationary guides and cam members as the plate rotates. Projections 14 with flat-sided ends are secured by bolts in split bosses 11 on slotted quadrants 10, which are adjustable on bolts 17 passing through radial slots 9 in a face plate 1 'rotated by worm gear from a stepped pulleyshaft. The face plate has a bar 18 fixed thereto, which supports adjustable heads 19, 20, each of which carries a pair of gripping-jaws 23, 24 and the head 19 also a pivoted cutter 53. The jaw 23 of each pair is pivoted at 26 and connected by a lever 28, and link 29 to a slotted lever 30, which engages a pin on an adjustable sleeve 37 carried by one of a pair of flat rods 32 with threaded corners slidably mounted in slotted guides fixed to the plate. The rods are pressed apart by a spring 33 on one rod engaging a recess 34 in the other. The rods have rollers 39 engaging a fixed curved guide 41 and also a fixed cam 42 so that each pair of jaws may be closed on the work during half a rotation of the face plate. The wire is drawn from a spool over a tension device such as a brake drum and is passed into one pair of jaws when these are in the uppermost position. As the face plate rotates the jaws are freed from the cam 42 and are closed by the spring, being held in position by the guide 41. After a half rotation of the face plate these jaws are opened by the cam 42 and the other jaws are closed on the wire. The cutter 53 carried by the head 19 is mounted on the pivot 51, Fig. 7, of a slotted lever 50 connected to a bar 43 sliding in guides fixed to the face plate by a p'n 48 passing through one of a series of holes 43<a>. The bar 43 has a fittiug 45 provided with a roller 44 which engages the member 46 of a pair of stationary cam members 46, 47 just prior to the opening of the jaws so as to operate the cutter which co-operates with the fixed jaw 24 to cut the wire. A tapered washer is placed on each of the projections so that the completed article is pushed forwards over the projections by the following wire.
Patent GB-1421370-A (GB)
Title: Band pass filter circuitry
IPC: H04B3/04
Filed: 1973-06-13
Abstract: 1421370 Automatic phase control in active filters FUJITSU Ltd 13 June 1973 [14 June 1972] 28242/73 Headings H3A and H3U A bandpass filter comprises: a first frequency changer FCV1 having a first input A to which an input signal may be applied; a second frequency changer FCV2 having an output F from which a filtered signal may be derived; a bandpass filter BPF connected between the output of the first frequency changer and a first input of the second; a phase detector PD connected to produce a control signal dependent on the phase difference between the input and output signals of filter BPF; a voltage controlled oscillator VCO controlled by the control signal so as to supply second input signals to the two frequency changers; and a phase shifter DL interposed between the voltage controlled oscillator and one of the second inputs. The phase shifter may produce a phase shift such that the output at F is in phase with the input at A or, if the output includes a circuit CB introducing delay, such that the output at I is in phase with the input. The circuit DL may be a delay line, a helical filter or an LC circuit. Figs. 3a, 3b (not shown) give details of the various circuits. The two frequency changers are diode bridge type, with transistor input and output stages, as is the phase detector. The band pass filter may be a helical filter, and the oscillator may be a transistorized Hartley oscillator tuned by a variable capacity diode.
Patent GB-1021412-A (GB)
Title: Improvements in or relating to the catalytic reforming of petroleum naphtha
IPC: B01J23/40
Filed: 1962-07-23
Abstract: In reforming gasolines containing at least 50% vol. of paraffins over a platinum-group metal previously reduced with hydrocarbon-free hydrogen, using reforming conditions of 875-990 DEG  F., 200-700 p.s.i.g., 1-20 wt./wt./ hr. and 3-50 mols. of hydrogen per mol. of hydrocarbon, the total feed and effluent water content is maintained below 100 p.p.m.  Drying of feed and recycle gas may be effected as described in U.S.A.  Specification 2,952,611, e.g. with alumina.  In one embodiment high recycle gas rates are used particularly to the later reactors in multi-stage processes, e.g. a recycle ratio of 2-8:1 in the first reactor is increased to 10-50:1 in later reactors. Rhodium and platinum are preferred catalysts.  Reference has been directed by the Comptroller to Specification 994,412.
Patent GB-1093822-A (GB)
Title: Improvements in or relating to the manufacture of semiconductor devices
Inventor: ROBERTS DEREK HARRY
IPC: C23C16/48
Filed: 1963-07-18
Abstract: 1,093,822. Semi-conductor devices. PLESSEY-UK Ltd. July 3, 1964 [July 18, 1963], No. 28491/63. Heading H1K. A slice of semi-conductor material is placed in contact with a photolytically-dissociable compound of a required impurity, selected areas of the surface of the slice are illuminated so that the compound is dissociated and the impurity is deposited on the illuminated areas, and the slice is then heated to diffuse the deposited impurity into the slice. The impurity compound may take the form of a gaseous atmosphere in which the slice is immersed, and the illumination pattern may be produced by the projection of visible or ultra-violet light through an apertured mask or by scanning with a laser beam. Reference has been directed by the Comptroller to Specification 975,472.
Patent GB-823894-A (GB)
Title: Improvements in and relating to thread winding machines
IPC: B65H65/00
Filed: 1957-09-09
Abstract: 823,894. Winding thread, commencing. ROSENKRANZ, C. G., HALSTENBACH, H., and PLUTTE. A. Sept. 9, 1957 [Sept. 18, 1956], No, 28430/57. Class 120(2) In a thread winding machine in which thread is passed automatically from a finished bobbin to the next tube, a guide device is provided which is operable so as to embrace the initial winding region of the bobbin tube over the major part of its periphery and to keep the thread pressed against the periphery of the tube, at the commencement of winding. In the embodiment shown the guide device indicated generally at 16 comprises three support rollers 17, 18, 19 mounted rotatably on a slide slidable tranversely to the tube and over which an endless band 20 of rubber or other flexible material is placed. The rollers 18 and 19 are mounted on levers 25 and 26 swingable about a common pivot 27. Links 30 and 31 bear on the free ends of levers 25 and 26 and are mounted at their other ends on a common axis 32 slidable in a guide 33 and operated by lever 35. In operation when a filled bobbin has been ejected and a new tube 15 placed in positions, a clamping device 13 secures the thread leading to the ejected bobbin 14 and the lever 35 is rocked thus moving the device 16 to the left. The arrangement of levers is such that the band 20 substantially surrounds the periphery of the tube 15 as shown in Fig. 7 thus pressing the thread against the tube so that the end is wound in at the commencement of winding. In the movement of the guide device 16 the thread is brought into contact with a knife edge 21 and severed thereby.
Patent GB-1260795-A (GB)
Title: Panel mounting assembly
Inventor: GROSSMAN ALBERT B
IPC: E06B3/62
Filed: 1970-06-12
Abstract: 1,260,795. Panel mounting assembly. DAYCO CORP. 12 June, 1970 [27 June, 1969], No. 286l8/70. Heading E1J. In a panel mounting assembly for mounting a panel such as a pane 35 in a structure 24 by means of a sealing elastomeric strip 25 having a groove to receive the pane and a groove 51 to receive a support flange 22 of a support 21 embedded in the structure 24, and having a locking strip or zipper 37 to press the wings 33, 30 into sealing contact with the pane and support flange 22 respectively, the flange 22 has substantially undercut V-shaped projections 43 extending outwardly therefrom and are resiliently received in a substantially undercut or V-shaped portion of the groove 51 to lock the support and elastomeric strip together in a secure manner.
Patent GB-616955-A (GB)
Title: Improvements in or relating to the treatment of streptomycin solutions
Filed: 1946-09-25
Abstract: The separation or concentration of streptomycin from solutions thereof (e.g. those obtained by the fermentation of nutrient media by organisms of the genus Actinomyces, or partially concentrated or purified or partially purified solutions) is effected by contacting a solution of streptomycin with a synthetic inorganic base exchange alumino-silicate and thereafter eluting adsorbed streptomycin with a solution of a material capable of displacing the streptomycin by base exchange.  The process, which may be combined with a treatment with charcoal or activated carbon, is preferably carried out by passing the solution undergoing treatment through a tower or column of the alumino-silicate and then passing the eluting solution in the same or the opposite direction of flow.  Advantageously a plurality of portions of the eluting medium are employed and the second or any subsequent eluent portion is subsequently used in an earlier stage of the elution of a freshly charged alumino-silicate.  In an example, streptomycin broth is passed through a bed of Biological Grade "Decalso" (Registered Trade Mark) and elution is effected with dilute aqueous sodium chloride solution, which is collected in portions. Other base-exchange materials specified are those known under the Registered Trade Marks "Basex" and "Doucil" and the Trade Name "Burgess Zeolite."
Patent GB-818985-A (GB)
Title: Process for the polymerization of ethylene
IPC: C08F4/16
Filed: 1955-10-07
Abstract: Catalysts used for polymerizing ethylene in an inert anhydrous medium (see Group IV (a)) comprise (a) a titanium or zirconium compound in which the metal has a valency of less than 3; and (b) an organic, alkali metal compound.  Optionally the catalyst may be produced from a titanium or zirconium tri- or tetra-halide and an excess of an organic, alkali metal compound.  The catalyst components may be mixed, e.g. in the molar ratio of from 0.1 to 10 to 1, during or before polymerization and in the latter case may be filtered and washed before use.  Specified components are the chlorides, bromides and iodides of titanium and zirconium; the methyl, ethyl, amyl, allyl, octadecyl, phenyl, benzyl, naphthyl, fluoryl, anisyl and cyclopentadienyl derivatives of sodium; potassium phenyl and benzyl; and lithium butyl, cyclohexyl, phenyl and benzyl.  Media used in the preparation of the catalyst are paraffin oil, benzine, cyclohexane, methyl cyclohexane, benzene, toluene and xylene.  Catalysts may be subsequently removed from polymer with materials such as alcohol, alcohol + benzene, steam, water, ammoniacal methanol, and caustic soda.ALSO:Ethylene is polymerized in an inert anhydrous medium in the presence of (a) a titanium or zirconium compound in which the metal has a valency of less than 3, and (b) an organic, alkali metal compound.  Optionally the catalyst may be produced from a titanium or zirconium tri- or tetra-halide and an excess of the organic, alkali metal compound.  The catalyst components may be mixed, e.g. in the molar ratio of from 0.1 to 10 to 1, during or before polymerization and in the latter case the product may be filtered and washed before use.  Specified components are the chlorides, bromides and iodides of titanium and zirconium; the methyl, ethyl, amyl, allyl, octadecyl, phenyl, benzyl, naphthyl, fluoryl, anisyl and cyclopentadienyl derivatives of sodium; potassium phenyl and benzyl; and lithium butyl, cyclohexyl, phenyl and benzyl.  Media used in the preparation of the catalyst and in the polymerization are paraffin oil, benzene, cyclohexane, methyl cyclohexane, benzene, toluene and xylene.  The examples illustrate the continous or intermittent addition of ethylene, and the destruction of catalyst and purification of product polymer with materials such as alcohol, alcohol and benzene, steam, water, ammoniacal methanol and caustic soda.  The polymerization processes may be as specified in the parent Specification.  The linear polyethylenes obtained may be stretched.
Patent GB-391136-A (GB)
Title: Improvements in or relating to the burning of pyrites, or iron sulphide, and the production of iron oxide, sulphur and sulphur dioxide
IPC: C01B17/52
Filed: 1931-10-15
Abstract: <PICT:0391136/III/1> Pyrites is roasted with a quantity of air or other oxygen-containing gas insufficient for complete combustion but at least sufficient for the complete oxidation of the iron, whilst a sulphur dioxide concentration of at least 20 per cent is maintained at the top of the combustion zone by feeding sulphur dioxide or a gas containing it into the burner.  An increased proportion of free sulphur is thus obtained.  A shaft furnace 1 is charged with lump pyrites at 2, a restricted amount of air being injected at the base of the furnace at 3.  The gases leaving the furnace at 5 pass in turn through a dust separator 6, a cooler 7 and a sulphur collector 8. The sulphur free gases are recirculated wholly or in part to the burner after having been subjected to concentration in a plant 9. The plant 9 may comprise a washing tower supplied with solvent from which a more concentrated sulphur dioxide may be obtained or the concentration may be effected by liquefaction and evaporation.  A proportion of the circulated gas may byepass the plant 9, the purge of nitrogen being thereby adjustable to equal the amount introduced into the system as combustion air.  The circulated gas is preferably introduced at a point above the point of introduction of the air &c., but below the major combustion zone, and may be preheated in a preheater 10, but to a temperature substantially below that of the combustion zone.  The air &c. may also be preheated.  A proportion of a reducing agent may be added to the upper part of the furnace or coke may be admixed with the charge of pyrites. Iron oxide containing a minimum of sulphur is obtained. Specifications 3704/87, 10295/00, [both in Class 1, Acids, alkalies, &c.], 236,256, [Class 1 (iii), Oxides &c., Metallic], 354,207, 355,832, 359,478, and 378,464 are referred to.
Patent GB-1493097-A (GB)
Title: Suction cleaner nozzles
IPC: A47L9/02
Filed: 1976-07-09
Abstract: 1493097 Suction cleaner nozzles H WESSEL 9 July 1976 28740/76 Heading A4F A base-plate for a suction cleaner nozzle comprises front and rear suction ducts 4, 8 extending transverse to the normal direction of movement of the nozzle, a leading bottom surface 2 sloping upwardly and forwardly from the leading lower edge of the front suction duct 4 at 4 degrees - 8 degrees (e.g. 6 degrees) with respect to the datum plane defined by the lowermost points of the baseplate, a trailing bottom surface 5 sloping upwardly and rearwardly from the trailing lower edge of the rear suction duct 8 at 1 degree - 5 degrees (e.g. 3 degrees) with respect to the datum plane, and a central bottom surface 7 having a rise of 0À5-1À5 mm (e.g. 1À0 mm) from the leading lower edge of the rear suction duct 8 to the trailing lower edge of the front suction duct 4. The rear wall 15 of the rear suction duct 8 may be inclined at 40 degrees - 50 degrees to the trailing bottom surface 5 (optimally at 45 degrees to the datum plane). The radius of curvature of the wall junctions 9, 10, 11 and 12 is desirably 2À5 - 5.0mm (e.g. 3.5mm) and that of the wall junctions 13 and 14 is desirably 0.3 - 1.5mm (e.g. 1.0mm).