baber/WOPTO huggingface dataset:
Patent GB-852865-A (GB)
Title: A process for the production of high purity diketene substantially free from acetic anhydride
Filed: 1959-08-05
Abstract: High purity diketene substantially free from acetic anhydride is produced by introducing diketene containing acetic anhydride into a closed vessel provided with cooling elements whereby a layer of crystalline diketene of high purity is formed on the cooling elements and separating the layer of high purity diketene from the diketene containing acetic anhydride, The liquid phase is run off when the diketene crystal layer has reached the optimum thickness and the pure diketene is preferably recovered by melting the crystals, for example by passing a warm liquid or gas through the cooling elements.  The use of two or more crystallisation vessels in series results in a higher degree of purity of the final product.  In a preferred embodiment, from 2 to 50% of an ester derived from acetic acid or propionic acid and methanol or ethanol is mixed with the crude diketene prior to crystallization. It may be advantageous to add cyclohexane to the ester, in a volume ratio of cyclohexane to ester of from 60:40 to 40:60.  The process may be effected batchwise or continuously using a continuous flow crystallization device.
Patent GB-903850-A (GB)
Title: Window blind construction or similar curtain or wall composed of louvers, strips or panels
IPC: E06B9/36
Filed: 1960-08-02
Abstract: 903,850. Vertical slat blinds. HUNTER DOUGLAS INTERNATIONAL CORPORATION. Aug. 2, 1960 [Aug. 6, 1959], No. 26799/60. Class 20 (3). [Also in Group XXV] Bearing-structures 36, 37, Fig. 3, for the chain-operated rotatable tilting and traversing shafts 21, 26, journalled at their ends in the top and/or bottom guiding channels 14 for carriages 20 supporting the vertical louvres 17, are slidably mounted in the channels 14 for supporting the shafts 21, 26 to prevent whipping thereof when operated to move the louvres across the window opening. On rotation of the traversing- shaft 26, cam followers 27, Fig. 7, on each carriage 20 move the latter along the guide 14 and the left-hand carriage 20, Fig. 3, moving to the right, draws the structure 37, Fig. 3, by a magnetic coupling 41, Fig. 4, until decoupling by an abutment 42a, Fig. 4, on the coupling structure contacting stop 44 on the guide. Likewise structure 36 magnetically coupled to structure 37 is drawn along the guide 14 until decoupled by an abutment 42b, Fig. 4, contacting stop 43. On reverse rotation of shaft 26 the carriages move to the left and are held in spaced positions by spacers 31, Fig. 7, secured to the right-hand carriage by a pin and hole coupling 29, 30 and slidable to an extent determined by the head 32 in a hole 34 in the adjacent left-hand carriage. The structures 36, 37 are, when the louvres traverse the window opening, pushed for temporary storage adjacent the left-hand end of the guide. Each louvre 17 is attached to its carriage 20, Fig. 4, by a horizontal U-shaped bar 18, one limb being attached to the carriage and the other limb having a convex belly portion 18a passing through the hem of the louvre. The guides are supported from brackets 12 by means of spring clips 15.
Patent GB-1010479-A (GB)
Title: A new and improved method of generating electricity
IPC: H02K44/08
Filed: 1962-07-12
Abstract: 1,010,479. Photovoltaic devices. YARDNEY INTERNATIONAL CORPORATION. July 12, 1962 [July 12, 1961], No. 26860/62. Heading H1K. Electricity is generated by disposing two electrodes in a liquid electrolyte and using radio-active material to produce a higher radiation intensity at one electrode than at the other to produce a voltage between the electrodes. In one arrangement, water containing radioactive waste flows between parallel electrodes, one of which is shielded by means of lead. Both electrodes may be of carbon or one of carbon and the other of iron or nickel. In an alternative arrangement, one electrode is a perforated cylinder mounted in a stream and the other a rod downstream of it. Radio-active waste is tipped into the cylinder and carried away by the stream which also acts as electrolyte.
Patent GB-369196-A (GB)
Title: Oil burner for heating stoves and the like
IPC: F24C5/08
Filed: 1930-09-10
Abstract: 369,196. Oil heating-stoves. SHELLMEX, Ltd. and RICHARDSON, A. W., St. Helen's Court, Great St. Helens, London. Sept. 10, 1930, No. 27081. [Classes 75 (i) and 126.] A central-draught wick oil stove is provided with a heat-radiating element or radiant heated by the flame. The stove shown comprises an annular wick giving a blue flame and heating a wire-gauze radiant or mantle 7, preferably formed of the material known under the registered Trade Mark " Monel " metal, which is pressed in dies from the sheet gauze in such a way as not to place the material under substantial tension, the shape being retained by a rim portion 30. A metal ring 10 is clamped over the rim 30 and is provided with notches which enable it to be engaged over lugs 12 on the stove body by a bayonet action, to hold the mantle in place. A reflector 9 is provided. The air passing up the centre of the wick is distributed at different heights to the flame by a spreader comprising two or more discs 14, 15 of inverted dish form, provided with perforations of upwardly-decreasing area, and an upper imperforate disc 16, all secured to a tubular stem 17 which is vertically adjustable by means of a lever arm 23. Air also passes through a perforated cylinder 19 past the upper end of the wick tube and also to a perforated conical member 20, which supplies a zone adjacent the flame. Means for adjusting the height of the wick as described in Specification 370,918 are provided.
Patent GB-194344-A (GB)
Title: Improvements in heat exchanging elements for icemaking apparatus of the direct expansion type
IPC: F25B39/02
Filed: 1922-07-14
Abstract: 194,344. Davies, J. July 14, 1922. Angle-pieces; junction-pieces. - A coil 2 is formed from lengths of rectangular section tubing 20 united by short channel members 14, Fig. 2. or tubes 21, 27, Figs. 3 and 4, of rectangular section, all of which are cut or mitred and bent so that the whole of the joints are readily accessible for exterior welding. The junction members are of such dimensions that the lengths of tubing are contiguous.
Patent GB-1040956-A (GB)
Title: Screw extruder for plastics compositions, for example thermoplastics
IPC: B29C48/67
Filed: 1963-07-10
Abstract: 1,040,956. Extrusion machines. KLOCKNER - HUMBOLDT - DEUTZ A.G. July 10, 1963 [July 10, 1962], No. 27417/63. Heading B5A. In an extrusion machine for thermoplastic materials comprising an axially displaceable screw and at least one vent channel provided between the extrusion die and the charging hopper and an annular gap arranged upstream of the or each vent channel, the or each annular gap is formed by a constriction 6 in the barrel and a step 10 formed on the screw shaft 2. The constriction 6 may consist of a cylindrical ring with bevelled end faces 7. The step 10 has conical and spherical portions 11, 12, respectively, so that axial adjustment of the screw shaft 2 regulates the minimum width of the annular gap 7.
Patent GB-691943-A (GB)
Title: An improved method of and means for producing machine-made tubular bags
Inventor: RANDALL JOHN WILLIAM
IPC: B31B23/00
Filed: 1950-11-09
Abstract: 691,943. Machines for making paper &c. tubes. DICKINSON & CO., Ltd., J. July 26, 1951 [Nov. 9, 1950], No. 27440/50. Class 99 (ii). The central longitudinal part of a web W, e.g. of paper or synthetic plastic such as "Cellophane" (Registered Trade Mark), from which a bag tube is formed, is drawn into contact with the peripheral surface of at least one roller or bar 6, which may be varied in length or diameter or both, so that the longitudinal margins F, F<SP>1</SP> of the web overhanging the ends of the roller are deflected towards the axis of the roller by the longitudinal tension in the web to define fold edges, the margins thereafter being caused to curl in the reverse direction and inwardly as the web passes from the roller towards and through a tube-forming throat 7. The web may be drawn by rolls 2 from a supply reel 1 and pass through an adhesiveapplying station 3 incorporating means for applying transverse and longitudinal sealing stripes of gum S, So. The throat may comprise adjustable guides 12, 12a spaced apart a distance equal to the width of the tube, and flat web-deflecting plates 13, 13a extending across the path of the web to deflect the margins into overlapping contact; alternatively, the guides carry a series of web-deflecting wires or rods which progressively increase in length so that their ends are disposed in helical paths to engage and plough over the upturned margins F, F' in longitudinally-extending waves, or helically-curved folding plates or rails as described in Specification 676,047, [Group XVII], may be used. The supporting plate 11 of the throat 7 may be replaced by a series of transverse rolls rotating about parallel axes. The path of travel of the web may diverge at an angle of approximately 90 degrees between the station 3 and the throat 7. Frusto-conical discs 15 may limit the downward deflection of the web margins, and the web may be drawn through the throat by a direction-breaking and fold-consolidating roll 8. In a modification, there are two spaced-apart rollers 6 between which is located rotatable gussetforming discs, the tube being completely folded by the throat after the web has passed over both rollers.
Patent GB-857504-A (GB)
Title: Improvements relating to the catalytic reforming of hydrocarbons
IPC: C10G59/02
Filed: 1958-08-27
Abstract: Dehydrogenation or dehydrocylisation of feedstocks comprising non-aromatic hydrocarbons, to give increased aromatic content, is effected by contact at 450 DEG  C.-580 DEG  C. with a catalyst comprising chromium oxide or a support, preferably alumina, minor properties (with respect to the chromium oxide) of Be, or alkali metal (preferably K) and, optionally, Co or Ni.  Preferably the process is effected at not more than 50 p.s.i.g., without either recycle of hydrogen or addition of extraneous hydrogen, and the LHSV is 0,1-1,0.  The feedstock may have a major proportion thereof boiling below 100 DEG  C., e.g. a straight run gasoline having an end boiling point of about 80 DEG  C.-120 DEG  C., or the feedstock may be a catalytic (e.g. platinum) reformate such as a platinum reformate having an end boiling point below 125 DEG  C, or the raffinate from a solvent extraction of the reformate.ALSO:A dehydrogenation catalyst comprises chromium oxide on a support, preferably alumina, and minor proportions (with respect to the chromium oxide) of Be, an alkali metal (preferably K) and, optionally, Co and Ni.
Patent GB-467004-A (GB)
Title: Improved skate for use on roads
IPC: A63C17/06
Filed: 1936-10-09
Abstract: 467,004. Roller skates. PLUMELLE, H. Oct. 9, 1936, No. 27474. Convention date, Oct. 9, 1935. [Class 132 (i)] A two-wheeled roller skate has a free-wheel device on one or both of its wheels, a braking device 10, and a locking device 5 of the mechanical or strap type for holding the foot rigid with the skate when desired. In a modification, the footplate 4a, Fig. 2, is in two parts hinged at the centre, thus allowing the rear portion to remain secured to the rear of the foot when the latter is raised and lowered. In another modification the footplate 4 is pivoted at its forward end. Means for limiting the movement of the foot in a vertical plane may be included.
Patent GB-1272929-A (GB)
Title: Seat with adjustable lumbar support
Inventor: THORPE REGINALD PETER
IPC: A47C7/46
Filed: 1970-06-06
Abstract: 1,272,929. Spring upholstery. FORD MOTOR CO. Ltd. June 6, 1970, No.27474/70. Heading A4M. A seat backrest includes a plurality of main springs 5 at least one of which is secured to a secondary spring 7 which is adjustably bowed to vary the stress in the springs 5, 7 by a mechanism 9 comprising a member 23 rotatable by a knob 35 and having oppositely threaded ends 25, 27 engaged in nuts 20, 21 respectively secured to first and second slides 15, 17 to which the opposite ends of the secondary spring 7 are respectively secured, the first slide 15 being engaged with a first guide 11 carried by one side of the backrest frame 3 and the second slide 17 being engaged both with the first guide 11 and with a second guide 11 carried by the opposite side of the frame 3. Stops 21 limit displacement of the slides 15, 17 towards each other.
Patent GB-151648-A (GB)
Title: Improvements in or relating to aeroplanes and other aircraft
IPC: B64C39/00
Filed: 1920-09-27
Abstract: 151,648. Savani, L. Sept. 29, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Planes and the like, arrangement and construction of.-The supporting surface of aircraft is composed of an indefinite number of plane elements superposed in several vertical rows and capable of giving variable incidence during flight. The elements in the several vertical series a, b, c, d, f, g, h, are carried at alternate heights on uprights c, l, and are constructed of wood or metal. The angle of incidence of each plane is greatest at the centre line of the machine, and decreases to zero or a small negative value at the extremities of the plane. Various forms of the uprights e, l are shown.
Patent GB-1059646-A (GB)
Title: Method of sorting out defective printed matter arriving from rotary printing machines, particularly newspaper printing machines, and device for carrying the method into effect
IPC: B65H43/04
Filed: 1964-07-03
Abstract: 1,059,646. Feeding webs; printing processes; delivering sheets. DAGENS NYHETERS A.B. July 3, 1964, No. 27592/64. Headings B6B, B6C and B6H. Apparatus comprising a rotary printing machine 1, a delivery table 4, a vertical conveyer 6, and a distributing station 7, is provided with a marking device 8 which is automatically and/or manually controlled for applying ink or paint to defective copies of newspapers or the like so that they may be readily detected and sorted out from the flawless copies at the distribution station. The marking device comprises a housing 12 slidable along a base 13 and is located between the impression cylinder of the printing machine and a transverse cutter 2. Mounted within the housing is a freely rotatable roller 17 and a feeding roller 21 partly immersed in a reservoir containing ink or paint. The roller 17 projects through an opening in the housing and is rotated by the printed web 1 when in contact therewith. The housing is moved towards and away from the printed web by a pneumatically operated piston-andcylinder 16 under the control of a detector 9 or push button 10. The detector operates the marking device and an acoustic or visual warning device on sensing a breakage in the web. The push-button is operated when the printing machine is running slow, i.e. during stopping and starting said machine. A counter 11 responsive to the passage of newspapers along the conveyer 6, is connected in the control circuit of the marking apparatus so that it is put out of operation while ink or paint is applied to the defective copies. Thus the total count equals the number of flawless copies.
Patent GB-700289-A (GB)
Title: Improvements in or relating to devices for retaining rotatable valve plugs in valve bodies
IPC: F16K5/08
Filed: 1952-11-03
Abstract: 700,289. Valves. GRIFFIN & TATLOCK, Ltd., and WALTER, A. H. Nov. 3, 1952, No. 27665/52. Class 135. [Also in Group XXV] A device for retaining a rotatable valve plug in a valve body, of the kind comprising a clip formed with two limbs 10 joined at one end and arranged for straddling and partly embracing the valve body and in contact with a flange or projection on the body, the extremities 16 of the limbs being bent back upon themselves to overlie an exposed face or shoulder on the valve plug to retain it in the body, is characterized by having means provided for positively locking the limbs 10 against the valve body. The locking means consist of a loop 14 provided in each limb and a bolt 20 which is passed through the two loops and locked by a nut 21 to clamp the limbs to the valve body. Specification 582,109 is referred to.
Patent GB-976581-A (GB)
Title: Storage system
IPC: E04H6/22
Filed: 1962-07-19
Abstract: 976,581. Selective retrieval storage systems; mobile lifting platforms. J. W. FRANGAS. July 19, 1962, No. 27683/62. Headings B8E and B8H. Goods, especially vehicles 76, for storage in or retrieval from the storage cells 18 of a multistorey building are conveyed between the floors thereof by a lift 20, moved along runways 14 at each floor level by wheeled trolleys 22 and raised from the runway space 16 into an overhead storage space defining the cells 18. Each trolley is constructed as a lifting truck with a detachable load platform, each vehicle 76 being placed on such a platform on a trolley at the entrance, the lift conveying the loaded trolley to the required floor where it is moved along the runway to beneath the selected cell 18 where the lifting mechanism is operated and the platform engaged with releasable holding means in the cell. Lifting truck (Fig. 5).-The wheeled chassis 22 carries at each corner an hydraulic ram 32 whose cylinder is pivoted to the chassis at 34 about which point it is raised by operation of a second pivoted ram 40. Operation of four such pairs of rams raises a platform carrier 26 from the full to the broken line position, the free ends of the pistons 38 of rams 32 being provided with runners 30 movable in a guideway 28 in the carrier 26. Electric motors 48 and 54, Fig. 4 (not shown) drive respectively the wheels 24 of the trolley and the pump for the hydraulic rams. Platform retaining.-Each platform 25, Fig. 5, has beaded ends 68 which fit cut-outs 66 in the retaining means of Fig. 6, a set of which is fitted in each cell 18. The cut-out 66 is in a pivoted lever 58 which is automatically deflected upwardly by an entering platform and returned by a spring 64 to hold the inserted platform. To release the latter for retrieval it is first slightly raised by the lift track and fluid pressure device 70 is then operated to raise lever 58.
Patent GB-843793-A (GB)
Title: Improvements in and relating to process control apparatus
IPC: B01J19/00
Filed: 1957-09-03
Abstract: 843,793. Automatic process control systems. UNIVERSAL OIL PRODUCTS CO. Sept. 3, 1957 [Sept. 7, 1956], No. 27749/57. Class 38 (4). In an electrical system for controlling an industrial process, signals representing the quantities of each of a number of products are obtained at intervals and multiplied by their respective monetary values per unit quantity, the sum of each set of the multiplications being compared with the previous sum by a comparator controlling the process. The process controlled may, for example, be the conversion of crude oil into materials varying from solids such as coke to vapours such as propane involving distillation, thermal or catalytic cracking, polymerization, alkylation or reforming. Processes for the production of steel, paint, paper or fabric, or for the refining of sugar, starch, resins, tar, edibles or animal products are also referred to. As shown, the raw material is supplied through lines 1 to a process 2 discharging different products into lines 3. Quantitative and qualitative detectors 4, which may merely measure rates of flow or analyse by fractional distillation or optical methods, produce signals, representing the quantities of each product, which are multiplied in an electric computer 7 by their respective monetary values per unit quantity supplied through lines 6. Computer 7 sums these multiplications and produces a series of outputs 8 representative of successive total monetary values. Each output is stored in a magnetic memory and compared with the next in a comparator 9 producing outputs 10 which are applied in turn to regulators 11 adjusting different process conditions such as temperature until no further increase in total monetary value is obtained. Regulators 11 may be servo-operated and maintain the values of the process conditions at their set values by feedbacks through lines 13. Computer 7 may include a timing device which introduces the signals from detectors 4 only at predetermined time intervals to allow changes in the process to become fully effective.
Patent GB-431761-A (GB)
Title: Arrangement for suppressing abnormal voltage and current oscillations to series condensers connected to an electric power line through an intermediate transformer
IPC: H02H9/00
Filed: 1933-10-09
Abstract: 431,761. Protective arrangements; transformer systems. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm. Oct. 9, 1933, Nos. 27816 and 27817. Void [Abridged as open to inspection under Sect. 91 of the Acts, April 12, 1934]. [Class 38 (iv)] In an arrangement for voltage regulation and reactance compensation in a power line comprising one or more series condensers connected to the line through an intermediate transformer, to prevent the occurrence of undesirable saturation phenomena a circuit is connected in parallel with the transformer comprising a resistance R, Fig. 2 in series with a choke D which at normal operating voltage passes only a very small current but at a super-normal voltage passes a comparatively large current due to saturation of its core. In a modification a condenser is connected in series with the choke. Where the load on the line consists mainly of synchronous motors the cores of the transformer T and choke D are provided with air gaps. This prevents instability of the arrangement due to saturation of the cores by currents of slip frequency. In a further modification the choke D is replaced by a valve. A theoretical discussion is given in the Specification.
Patent GB-442235-A (GB)
Title: An appliance or apparatus for use in the practice of the game of golf
IPC: A63B69/00
Filed: 1934-09-28
Abstract: 442,235. Golf - practising appliances. MOTE, H., 97A, Caledonian Road, King's Cross, London. Sept. 28, 1934, No. 27835. [Class 132 (ii)] Golf-practising apparatus comprises a shallow box 1 for resting on the ground or floor having a longitudinal slot 3, an indicator block 4 sliding in said slot (to indicate distance) a slidable member 8 in the box which carries a set of pulleys and engages the indicator block to move it forward, spring means 15, 16 restraining the member 8, a second set of pulleys mounted in the box and a cord 25 which is anchored at one end 26 to the box and at the other attached to a ball 26<1> and which passes round the two sets of pulleys and out of a guide 24 at the forward end of the box to engage a rockable member 23 on the box (to indicate loft or pull or both). The member 8 slides on rods 6, 7 and in moving forward compresses the springs 15, 16 ; it also abuts the block 4 to move it forward and carries the four pulleys 9, 10, 11, 12. Two more pulleys 17 and 18 are mounted in the forward end of the box. A rubber mat 29 carrying the tee 30 is so shaped and attached into the end of the box 1 that its end acts as a buffer for the member 8. The cord 25 is wound round the pulleys as shown in Fig. 2 and passes through the guide tube 24 and the member 23. This latter is so mounted upon vertical pin 22 and horizontal pin 23<a> that, when the ball is struck, the cord pulls member 23 so as to show the loft of the ball and its direction to the left or right. In a modification, the tubular guide 24 is replaced by two pulleys, whose peripheries touch, and the rockable member 23 in rising moves a sliding link attached to a pointer which moves over a loft scale on the box. In another modification, the springs 15 and 16 are replaced by a single tension spring at the rear ; the member 8 stretching this spring as it is pulled forward by the cord. Means are also provided for holding the distance indicator 4 frictionally in the position to which it has been moved forward by the member 8. The slot 3 may be at the side of the box and the pointer bent over to read along the top edge of the box.