baber/WOPTO huggingface dataset:
Patent GB-600624-A (GB)
Title: Improvements in or relating to the manufacture of yeast
IPC: C12N1/18
Filed: 1945-03-27
Abstract: In the manufacture of yeast by successive growths in the same fermenting medium containing fermentable sugars, e.g. milk serum or sugar solutions obtained by cellulose saccharification, with continuous aeration during each growth and intermittent reduction of the yeast concentration before the complete consumption of the sugar, the yeast concentration is reduced to 1 per cent or less of its previous value whenever the yeast concentration reaches a value near to but not exceeding 6 x 108 cells per c.c. of the fermenting medium. The reduction of concentration may be effected by the removal of 99 per cent or more of the yeast or by removing all the yeast and reseeding the wort with up to 1 per cent of the yeast removed or with an equivalent amount of yeast prepared from other media such as beet-root juices or molasses solutions.  Yeast nutrients other than sugars may be added periodically to the wort and, when using a wort containing yeast nutrient organic compounds, such as lactic acid and amino acids, the growth of yeast may be continued after the complete consumption of the fermentable sugars.
Patent GB-1518046-A (GB)
Title: Window stay
IPC: E05C17/18
Filed: 1976-12-15
Abstract: 1518046 Stays ARCHIBALD KENRICK & SONS Ltd 15 Dec 1976 [27 Feb 1976] 07764/76 Heading E2F In a window stay a hooked-shaped leaded member 15 is rotatably mounted in a portion of an attachment part 13 and a stay bar 10 is pivotally connected to the headed member 15 for angular movement of the stay bar about an axis disposed transversely to its length, the headed member 15 and one end of the stay bar 10 being connected by respective elements of a trunnion 33 and bearing 35 combination having respective engaging cylindrical surfaces. The bearing is open-sided at 23, 24 to permit assembly of the trunnion.
Patent GB-765039-A (GB)
Title: Improvements in or relating to supports of synthetic material for self-adhesive labels
IPC: G09F3/10
Filed: 1955-03-17
Abstract: 765,039. Backing supports for labels. HERMANN, W. March 17, 1955, No. 7805/55. Class 73. A backing sheet, strip or web 1 for selfadhesive labels 2, 3 which are peeled therefrom as required, is formed with protuberances 4 so that the adhesive 3 is in contact with the tops of the protuberances only, thus facilitating easy removal of the labels from the sheet. In another form Fig. 3 (not shown) the protuberances are of hemi-spherical form. The backing sheet may be lacquered or varnished or alternatively chemical materials are provided in the sheet to decrease the adhesion of the labels thereto. The backing sheet may be formed of an extensible material.
Patent GB-232934-A (GB)
Title: Improvements in and relating to separable fasteners
IPC: F16B21/06
Filed: 1925-03-23
Abstract: 232,934. Carr Fastener Co., (Assignees of Carr, F. S.). April 24, 1924, [Convention date] . Stud-and-socket fastenings: press-button fastenings.-In a two-part fastening particularly applicable to curtains of motor vehicles, the stud has a long head struck up from the base plate with a comparatively rigid part and a comparatively resilient part, both parts having shoulders to engage a shouldered aperture in a rigid countersunk socket, a spring-pressed plunger being located within the stud to normally prevent collapse of the resilient part to effect engagement or disengagement with the socket. In the form shown in Figs. 2 and 4, the stud member has a head formed by the comparatively rigid part 12 and the comparatively resilient parts 13, the position of the slots 14, 14<1> determining the resiliency of the parts. The part 12 is further strengthened by ridges 12<1>. The parts 12, 13 are struck up from the base member 15 over which is bent the end plate 23 which is perforated for the head 20 of the plunger 16. The stud is secured to the fabric by a back plate 25, the prongs 26 of which penetrate the fabric and clench under the flange of the plate 23. The socket comprises a casing 6 let into a hole in the body of the vehicle and secured by a screw 2, the head 3 of which is square and fits into a square recess in the base of the casing and is retained by bent-over lugs 5, The edge of the casing is bent over as shown to form a lip 7 for engaging the stud. The lip 7 has a pair of diametrically opposite slots to admit a tool for screwing it to the body. A spring 19 normally brings a head 17 on the plunger 16 into register with the shouldered end 18 of the stud parts 12, 13 to prevent collapse of the parts 13. To engage the stud in the socket, the end 18 of the stud is brought over the casing lip 7 and pressure applied to the button 20. This forces the head 17 beyond the end of the stud against the springs 19 and 11 and allows the parts 13 to collapse inwardly and enter the socket. Release of the button enables the springs 19 and 11 to restore the plunger to normal position wfien the head 17 prevents movement of the parts 13 to release the stud. In the form shown in Fig. 8, the socket casing has a threaded periphery 28 engaging corresponding threads in the wood 1 and instead of the stud being secured to the fabric by prongs in the back plate, it is secured by a tubular rivet 34 having a flange 35 engaging behind the bent-over edge of the front plate 23 and being clenched behind the back plate 25. In both cases the back plate has short projections which grip but do not penetrate the fabric, while in the form illustrated in Fig. 8, the flange 35 of the rivet 34 has corresponding ,projections.
Patent GB-680576-A (GB)
Title: Improvements relating to the opening of asbestos with or without other fibres
Inventor: ELLISON WILFRED JAMES
IPC: C04B20/08
Filed: 1950-03-29
Abstract: 680,576. Opening fibrous material. TURNER & NEWELL, Ltd. Feb. 23, 1951 [March 29, 1950], No. 7391/50. Class 120(i) An apparatus for opening asbestos fibres with or without other fibres such as wool or cotton, in which the fibres travel in suspension in an air current from one end of the apparatus to the other while being subjected to the action of high speed beaters rotating between ported transverse partitions and carried by a shaft extending longitudinally of the casing of the apparatus, is characterized in that the ports are distributed around the shaft and form longitudinal passages such that the direction of air flow through them is essentially axial and the fibres in passing through a port are forced to change from essentially circumferential to essentially axial movement. In addition to opening resulting from the impact of the beaters on the fibres, opening takes place as a result both of impact of the fibres on the walls of the ports and of impact of circumferentially moving fibres on fibres issuing essentially axially from the ports. As shown, fibre is drawn up a pipe 2 into a distributing chamber where it is spread by a conical disc 5 on the beater shaft 3. The fibre passes through a casing 1 surrounding the beaters, and out through an outlet pipe 19 connected to a fan. In casing 1 beater bars 8 rotate between partitions 13. Each bar 8 comprises a flat arm set at 45 degrees to the plane of a disc 7 mounted on shaft 3; the face of each disc 7 is grooved to receive mating surfaces on the shanks of bars 8 so that the bars can be held by bolts at any desired radial position. Each partition 13 consists of a centrally perforated disc 14 surrounded by a cellular structure secured to the inner surface of casing 1 and providing axially extended ports 17 whereby the fibre can flow freely from stage to stage but in doing so is forced to change from a circumferential to an axial movement. In modifications, the beaters may be set parallel to the axis, or alternately inclined in opposite directions, or they may consist of round or other shaped bars; further, the casing diameter may increase towards the outlet end, the beaters increasing in diameter accordingly. Specification 533,943 is referred to.
Patent GB-1031625-A (GB)
Title: Motor control circuits
IPC: H02P7/295
Filed: 1965-02-24
Abstract: 1,031,625. Automatic speed control. SINGER CO. Feb. 24,1965 [March 19,1964], No. 7894/65. Heading G3R. [Also in Division H2] A series motor, having armature 10 and field winding 11, is supplied from A.C, source 21, 22, through silicon controlled rectifier 12, the field winding having a second exciting circuit separate from the rectifier circuit, this second circuit comprising voltage divider 16,17. This provides satisfactory speed regulation of motors, which do not supply sufficient back E.M.F.from residual field flux alone to afford a stable speed regulating function. The rectifier is controlled in accordance with deviations between voltages V.C. and VFB, a diode 19 being connected in the gate-lead and capacitor 20 preventing random firing due to transients. A diode may be connected in series with the resistor 16, whilst potentiometer 17 is shunted by a capacitor. The anode-cathode circuit of the silicon controlled rectifier may be shunted by a further resistor.
Patent GB-796715-A (GB)
Title: Improvements in or relating to the separation of polyisopropyl-benzenes from mixtures by distillation
IPC: C07C7/05
Filed: 1956-03-14
Abstract: The fractional distillation of mixtures which contain poly-isopropylbenzenes, such as di- or tri-isopropylbenzenes, is carried out in an inert atmosphere containing less than 3 per cent by volume of gaseous oxygen, whereby the polyisopropylbenzene is obtained as a clear distillate and the tendency for a resinous coating to form in the still is much reduced.  The distillation may be carried out in the presence of an inert gas, such as nitrogen, carbon dioxide, or methane.  In an example, a mixture containing about 50 per cent of paradiisopropylbenzene and 50 per cent of the meta isomer is distilled in a stainless steel column packed to a height of 15.5 feet with 0.24 inch squares of perforated and protruded stainless steel sheeting.  The reflux ratio is maintained at 30 to 1; and the concentration of oxygen in the atmosphere in the still is kept low by sweeping with nitrogen. The pure para isomer is obtained as a clear distillate, i.e. it contains no water.
Patent GB-701626-A (GB)
Title: Cubicle for therapeutic treatment
IPC: A61G11/00
Filed: 1952-03-27
Abstract: 701,626. Treatment chambers. ARMSTRONG, G. March 27, 1952 [April 5, 1951], No. 7921/52. Class 81(2) A treatment chamber has an air inlet at one end and an air outlet at the other end, a forced air circulation system and a germicidal lamp past which air must flow before enterin the treating chamber. The apparatus comprises a cabinet containing a treating chamber 19, the back and front walls and cover 3 of which are fitted with transparent panels. Below the chamber 19 is an air circulation conduit 53 and a storage space fitted with doors 16. On the inside of one end wall 20 is disposed a vertical conduit 24 which is open near the top to receive air from the chamber 19. An electrically operated fan 43 situated in an air inlet chamber 31 draws air through the conduit 24 from the treating chamber 19 and through an adjustable grille 40 from the outside atmosphere and impels it into the conduit 53 beneath the treating chamber 19. A germicidal lamp 61 and a humidifier comprising a pan 63 for containing water and a heater 67 are arranged in the conduit '53. A water bottle 65 for feeding water to the pan 63 is provided on the side of the cabinet. A second adjustable grille is provided on the front of the cabinet for the discharge of some air which has flowed past the lamp 61. Air enters the treating chamber 19 from the conduit 53 through a vertical conduit 51 arranged on the inside of the other end wall 21. An upstanding rib 70 on.the floor 18 of the treating chamber 19 but spaced from the side walls defines an area to receive a mattress or padding for the patient. A drain (not shown) is provided to receive any moisture collecting in the space between the rib 70 and the side walls. The upper part of the front wall is provided with control knobs and switches which are contained in chambers (not shown) sealed from the interior of the treating chamber 19. Electrical leads outside the sealed chambers to the controls are contained in tubes (not shown). One end wall 21 is provided with nipples for attaching tubes leading therapeutic gases into the treatment chamber, openings for allowing treating tubes or other devices to be passed to the interior of the treating chamber 19 and electrical sockets for applying auxiliary electric equipment.
Patent GB-1174033-A (GB)
Title: Improvements in or relating to Thermionic Discharge Tubes
Inventor: MALONEY CHRISTOPHER EDWARD
IPC: H01J1/28
Filed: 1968-02-19
Abstract: 1,174,033. Cathode materials and processing. ENGLISH ELECTRIC VALVE CO. Ltd. 20 Dec., 1968 [19 Feb., 1968], No. 7929/68. Heading H1D. A thermionic cathode, comprising an emissive metal oxide contained in a metal matrix, is formed by impregnating a porous metal matrix with nitrate material corresponding to the metal oxide, converting the nitrate into the corresponding carbonate which is subsequently heated in a hydrogen atmosphere to decompose it to the oxide form. The metal matrix, preferably of W, Mo or W-Mo alloy, but which may also be of Os, Ir, Re or alloys thereof, is impregnated by immersing in a nitrate solution. The nitrate impregnant may be any one or combination of barium, strontium or calcium nitrate, preferably a barium-strontium nitrate mixture, and is converted to carbonate by immersing the impregnated matrix in an ammonium carbonate solution. Then, either in the tube envelope or outside it, the matrix is heated in a stream of dry hydrogen at 1100‹ C. to reduce the carbonates to oxides and activation is completed by outgassing in vacuum at 1100" C., reducing the temperature to 1000‹ C., immediately drawing current from the cathode and with the cathode mounted therein sealing the envelope. Ageing at 700‹ C. and drawing 100 mA/cm.<SP>2</SP> may also be employed.
Patent GB-126473-A (GB)
Title: Improvements relating to Machines for Harvesting Flax and like Crops.
Inventor: MILLAR JOHN
IPC: A01D45/06
Filed: 1918-05-11
Abstract: 126,473. Millar, J. May 11, 1918. Thrashing-machines.-A machine for pulling flax &c. is provided with rotary de-seeding combs g and with a swinging receptacle k into which the seeds combed out are delivered by trays g<2>. The flax is pulled and presented to the combs by gripping appliances carried by driven endless chains or the like. The grippers comprise spring-controlled jaws b<1>, b<2> adapted to be opened and closed, and co-operating with fixed members b'. Dividers q disentangle the flax and direct it between the jaws. The grippers and dividers are mounted on tubular shafts l pivotally connected to chains c<1> passing round sprocket-wheels c' driven from the main wheels a<2>. The jaws b<1>, b<2> are actuated by levers n, o engaging pins on divided shafts passing through the tubular shafts l. The divided shafts are moved longitudinally by engagement with projections in cam-tracks d. The tubular shafts l are provided with arms or dogs engaging in a cam groove so as to impart any desired turning movement to the shafts l. The combed flax is delivered on to a platform or at the rear of the machine. The mechanism mav be raised or lowered bv means of screws v and bevel gearing v<1>, v<2>. According to the Provisional Specification, the gripper jaws may be serrated and may interlock when closed.
Patent GB-161809-A (GB)
Title: Faucet valve
IPC: F16K11/056
Filed: 1920-03-17
Abstract: 161,809. Johnson, J. T. March 17, 1920. Mixing-valves; closure members, compound. - Relates to a valve for mixing hot and cold water, of the kind having a rotary cylindrical valve, such as 17, controlling the two fluid inlets 3, 4 and a coaxial outlet-controlling valve 19. In the present arrangement, the outet valve is in the form of a finger 18, 19 centrally disposed within and depending from the cylindrical inlet-controlling sleeve or skirt 17. The valve member is threaded above the skirt and directly engages threads in the valve casing, as shown. The top of the casing is covered by a rubber or like washer 13 secured by a screw cap 9 which contains a rubber or like packing-pad 16.
Patent GB-847647-A (GB)
Title: Improvements relating to the control of electric lift motors
Inventor: RYDER ANTHONY DAVID
IPC: B66B1/46
Filed: 1956-03-14
Abstract: 847,647. Control of motors; controllers. WADSWORTH & SONS Ltd., W. Feb. 21, 1957 [March 14, 1956], No. 7949/56. Class 38 (3). A controller for a lift motor comprises shafts 2, 3 which are coupled through spur wheels 5, 6 so that the shafts rotate in opposite directions. The shafts carry magnetic clutch bodies 7, 8 having coils 9, 10 supplied through brushes and slip-rings. Clutch-plates 13, 14 are freely rotatable on the respective shafts and are in toothed engagement with spur wheel 19 which is driven from the lift gear, the clutch-plates being rotated in the same direction. Thus, if the wheel 19 rotates clockwise, plates 13, 14 are driven anti-clockwise, so that energization of coil 9 effects anti-clockwise rotation of shaft 2 and clockwise rotation of shaft 3. The energization of coil 10 causes the rotation of the shafts 2, 3 to be reversed for the same direction of rotation of wheel 19. A weight or spring is arranged to return the shafts to a position corresponding to starting of the lift car if the control cycle is interrupted. Alternative methods of driving the clutch-plates may be used, and the plates may be driven in opposite directions, so that the shafts may be coupled to turn in the same direction. The selective engagement of the clutches is controlled by floor-selecting gear through a change-over device operated in accordance with the direction, or intended direction, of travel of the lift car. To control acceleration or deceleration of the car, the shafts are rotated in the same desired respective directions irrespective of whether the car is travelling up or down. A series of contacts 23 are operated by cams 22 fixed to the shafts and are adapted to control the speed of the motor as well as undertaking interlocking, protective, or other auxiliary functions. A rotary phaseshifting regulator may be driven through variable-rate linkage from shaft 2, a roller 24 being carried on the end of an arm fixed to the shaft and co-operating with a slotted plate 26. A shaft 25 is separately supported and carries the plate 26 whereby rotation of shaft 2 rotates shaft 25, but the ratio of the angular velocities changes during the rotation. When the lift car starts, the appropriate clutch-coil is energized and the shafts 2, 3 rotate from the " slow " to the " fast " positions. When the limit of rotation of the shafts is reached, the clutch slips to hold the shafts in the " fast " positions. At a suitable point in advance of the destination floor, the clutches are changed over so that the shafts are rotated from the " fast " to the " slow " positions. The clutch-plates may be driven by a pilot motor and not from the lift gear, through a chain drive, for example.
Patent GB-161424-A (GB)
Title: Improvements in water heaters
IPC: F24H1/20
Filed: 1920-03-18
Abstract: 161,424. Lyne, F. T., Banks, W., and Stephenson, A. March 18, 1920. Block form boilers. - A tank 1 has a transverse partition 2 carrying up-cast and down-flow tubes 3, 4, horizontal flue pipes 5 connected at one end to a flue 12, and gas-burners 6 extending through the flue pipes 5 supplied with gas from a pipe 8.
Patent GB-133722-A (GB)
Title: Improvements in and connected with the Aeration of Sewage and other Impure Liquids
Inventor: STOTT OSWALD
IPC: C02F3/12
Filed: 1918-05-14
Abstract: 133,722. Stott, O., and Jones, E. R. May 14, 1918. Aerating; t a n k s , treating in.-In the " activated sludge " process of treating sewage,.the necessary air is supplied at the surface of the liquid, which is circulated round the tank along with the sludge by agitating-devices. The air may be introduced into the liquid by the action of the agitators, which are then placed at the surface of the liquid. In the arrangement shown, the sewage is caused to flow round the tank, and air is forced into it by a feathering paddle 1. The corners of the tank are rounded, as shown at 4 and 5, and internal partitions 2, 3 are provided to direct the flow of the sewage. In a long tank, a number of agitators are employed.
Patent GB-467619-A (GB)
Title: Improvements in flexible conduits
IPC: F16L11/18
Filed: 1936-03-18
Abstract: 467,619. Flexible conduits ; joints. WITZENMANN, E. March 18, 1936, No. 8129. [Classes 99 (i) and 99 (ii)] A flexible conduit, Fig. 1, comprises lengths of pipe a and intermediate pipes p of smaller diameter provided with inwardly and outwardly directed end flanges a<1>, b<1> respectively, fluidtightness between the overlapping pipe ends being secured by compressed packing rings c. The flanges are screwed to the pipes so as to be removable to permit assembly and breaking of the conduit ; also replacement of packing rings when necessary. In a modification, Fig. 4, the pipes a, b are similar and stepped and are provided with end flanges a<1>, b<1>, the larger end of one pipe overlapping the smaller end of the adjacent pipe to locate a metal ring c<1> carrying opposed packings c. Fig. 5 shows a conduit constituted by flanged pipes A, B and intermediate sleeves comprising two co-operating threaded rings d, e each of which is formed with an integral flange to overlap the corresponding pipe flange b<1> with the interposition of packing rings c<1>. Several further modifications are described in the Specification.
Patent GB-697188-A (GB)
Title: Improvements in or relating to cathode-ray tubes
IPC: H01J29/84
Filed: 1951-04-09
Abstract: 697,188. Ion-trapping in cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. April 9, 1951 [April 12, 1950], No. 8179/51. Class 39(i) In cathode ray receiv ing apparatus in whicl a magnetic field co operates with an ion trap electrode to remov ions from the beam the electrode is cylin drical and has an aper tured stop, and the stop is pervious to negativ ions to a progressively decreasing extent fron the edge of the aperture so that the residual ion spot on the screen ha blurred edges and is thus less noticeable. The aperture may be milled on one or as shown in Fig. 4 on two opposing portions; the milled portions may be of rectangular section instead of conical and may or may not be radial, Figs. 6, 7 (not shown), or small holes may be distributed as shown in Fig. 8. The ion trap may use crossed electric and magnetic fields so the electrons are undeviated and the ions intercepted, the transverse electric field being produced by inclining the end surface of the cylinder to the axis thereof at the point of entry, Fig. 1 (not shown), or may use a magnetic deflecting field only, in which case the electrode must be bent as shown in Fig. 2. The aperture in the stop need not be circular or concentrically positioned and the cylindrical electrode need not be of circular cross-section. The cylindrical electrode may be a conductive coating or a metal part of the tube wall.
Patent GB-1410082-A (GB)
Title: Central processing unit
IPC: G06F7/50
Filed: 1972-08-29
Abstract: 1410082 Data processing systems TEXAS INSTRUMENTS Inc 29 Aug 1972 [31 Aug 1971 (7)] 8260/75 Divided out of 1410081 Heading G4A A single integrated circuit chip carries a parallel arithmetic unit, random access memory unit, instruction register and control circuitry interconnected by a common parallel bus 81 which is precharged during a first clock phase and is selectively discharged in the interval between the first and a second clock phase in order to transfer information between the units on the chip. A pair of transfer gates 87 are connected in series between bus 81 and earth 89, the bus is precharged during #1 via gates 91 and 85 (the same phase is used to transfer data from bus 81 to terminals A via gates 83), and at the termination of phase #1 data on terminals A are transferred through gates 85 to selectively discharge the bus 81. The disclosure is identical with that of the parent Specification 1,410,081.