baber/WOPTO huggingface dataset:
Patent GB-668692-A (GB)
Title: Improvements in or relating to two-stage rotary vacuum pumps
IPC: F04C27/02
Filed: 1950-04-28
Abstract: 668,692. Rotary pumps. VOGT, A. April 28, 1950. [May 7, 1949] No. 10519/50. Class 110(ii). A two - stage pump,. preferably a vacuum pump, is provided with an eccentric ring rotor 2 which contacts stator parts 1, 4, each at one point, and carries sliding vanes 5, 6. Fluid is pumped from duct 9 and an inlet 8 to a port 10 and space 11 leading to a port 13, for further compression, and is finally discharged through a port 14 to a space 15 above an insert 12. A valve 16 between the spaces 11, 15 is open when the pump is first started up, but closes with increasing vacuum in the vessel being evacuated, the fluid then being forced through the second pumping stage. For sealing and lubrication purposes, an oil bath 20 feeds a tank 18 through a drip tube 17, the oil covering the valve 16 and also the delivery valve from the port 14. The oil passes through a port 19 into the inner pumping space. The vertical driving shaft 21 has a seal 22. The ends of the vanes are rounded off as shown. The oil in the tank 18 is heated due to friction of adjacent parts.
Patent GB-473348-A (GB)
Title: Improvements in or relating to electron discharge devices for use in television and like systems
IPC: H01J31/42
Filed: 1936-04-09
Abstract: 473,348. Image dissectors. BAIRD TELEVISION, Ltd., and JONES, V. April 9, 1936, No. 10544. [Class 39 (i)] In image dissectors with an electron image from a photo-electric cathode 2 deflected over, and scanned by, an aperture 4 in a target electrode 3, the electron stream passing through this aperture 4 is amplified by electron multiplication at foraminated secondary emitting electrodes. The stream may strike an impervious electrode 13 inclined at 45‹ to the incident electrons and is then further multiplied at fine mesh grids 5.. 8 before collection at the output electrode 9. The grids may have activating coatings and may be biassed by a potentiometer 14 within the envelope 1. A suppressor electrode 12 is placed between the electrodes 3, 13 to prevent the flow of secondary electrons to the electrode 3, and to form the actual limiting aperture for the electrons flowing to the electrode 13. In a modification described in the Provisional Specification, the electrodes are so biassed that secondary electrons flow back through some grids, for example, secondaries from the electrode 9 How through the openmeshed grid 8 to the grid 7, a negative picture signal being obtained across the resistance 11.
Patent GB-991079-A (GB)
Title: Production of alkali metal chlorates
IPC: E02F9/02
Filed: 1963-03-18
Abstract: Alkali metal chlorates are produced by electrolysing brine using a porous inert cathode impregnated with an oxygen-sensitive catalyst, through which an oxygen-containing gas passes to the cathode/electrolyte interface.  Brine containing 90/170g. of salt per litre is treated with a little HCl to bring the pH value to 6-7, and a current is passed through it at 20-70  DEG C., while forming in air through the cathode at a pressure of up to 5 atmos. The brine flows at 3-201. per hour per sq. foot of anode surface. The cathode is made by soaking an inert porous material, e.g. a graphite block having a hole drilled therein, in a salt of a Pt group metal and depositing the metal electrolytically, while raising and then lowering the pressure through the hole, by which liquid is drawn in and then expelled, preventing the pores from being blocked.  Alternatively the porous material may be impregnated with nitrate of Ag or Cr and heated at 250  DEG C. to form the oxide.  Other porous materials specified are a fine screen of metal wire, sintered metal powders, or compressed coarsely ground synthetic resins, e.g. polystyrene.  These may be impregnated with formaldehyde and silver nitrate or a mixture of chromium and aluminium nitrates, which after heating forms a spinel type of mixed oxides.
Patent GB-1462756-A (GB)
Title: Filter elements and their use in filter thickeners
IPC: B01D29/00
Filed: 1973-03-05
Abstract: 1462756 Filter thickener and elements therein ENGLISH CLAYS LOVERING POCHIN CO Ltd 3 June 1974 [5 March 1973] 10615/73 Heading B1D A filter element comprises an open-ended support tube 1, of rigid P.V.C. for example, having an internal chamber 3 which is sealed from the main interior space of the tube and so arranged that when the tube is lowered into a suspension air can be displaced from the interior space by-passing the chamber 3, cham-  ber 3 communicating via holes 7 with a drainage space defined between the exterior of tube 1 and a surrounding filter sleeve (10). The sleeve (10) is of circularly woven cotton, nylon, polypropylene or polyethylene terphthalate, and its ends are clamped to tube 1 by rubber cuffs (12) and hose clips (Fig. 2 not shown). Sleeve (10) is spaced from tube 1 either by a pattern of ribs, studs or roughening produced by shot blasting on tube 1 or by a coarsely woven backing layer (9) of metal or plastics. In Fig. 7 chamer 3 is annular and connected by a flexible tube 38 to a manifold 39, which supports a row of elements by brackets 42. Figs. 9, 10 illustrate a manifold which supports several rows of elements and comprises two. perforated sheets connected by sleeves 50 through which filter elements 33 extend, tubes 38 connecting the chamber 3 of each element with the enclosed filtrate space between the sheets 47, 48. Figs. 1 to 6 (not shown) illustrate various filter elements with chambers 3 of different forms to Fig. 7. Fig. 8 (not shown) represents a thickener tank with two sumps and several rows of filter elements, connected by manifolds to a common pump which is reversed to backwash elements to remove cake. As the filtrate spaces within the elements are small little liquid is used in backwashing.
Patent GB-698133-A (GB)
Title: Improvements in and relating to screens for the protection of heating appliances
IPC: F24C15/36
Filed: 1951-05-07
Abstract: 698,133. Protective screens for exposed heating appliances. FRANCIS, 0. M. July 4, 1952 [May 7, 1951], No. 10687/51. Class 126 A screen for the protection of heating appliances' with exposed incandescent radiants comprises a cage a of wire meshwork b formed on a frame c which has one or more sleeves o, p, on the upper and lower sides arranged to slide respectively on the upper and lower prongs e, e of two elements mounted on the casing of the heating appliance adjacent to the opening exposing the radiants. The sleeves p comprise encircling bands of spring metal whilst the sleeves o are provided with a nut and bolt s so that the cage may be secured in front of the radiants after being slid into position. If the apliance being fitted with the screen is provided with external screws n the vertical portions d, d of the mounting elements are provided with prong-ended clips m for securing purposes, but if such screws are absent then the screen may be attached to the protective bars which are usually fitted to such 'heating appliances. For this purpose a clip similar to that shown in Fig. 6 may be used. This comprises two relatively turnable rivet-joined clip pieces, g, h, which are adapted to be clamped by nuts and bolt t, l, to the vertical portion d of the mounting element and the protective bar k, respectively.
Patent GB-783181-A (GB)
Title: Improvements in or relating to hinged articles
IPC: A46B15/00
Filed: 1954-04-12
Abstract: 783,181. Hinges. WALLER, W. M., and WALLER, P. H. April 12, 1954. No. 10744/54. Class 65(2) [Also in Groups XVII and XXIII] In an appliance comprising a hollow body part 1 and a part 2 carrying a functional member (shown as a brush) and hingedly connected to the body so that it can close the body. the connection is such that when the part 2 is open it can be slid into either of two positions from which it can be closed on the body, the functional member being enclosed in the body when the part 2 is closed from one of these positions and exposed when closed from the other. In the form shown, the part 2 is hinged at 3 to a block 3a slidable on a rod 4 fixed across the opening of the body; in the position shown the brush will be enclosed when the member 2 is lowered, while if the block 3a is at the other end of the rod 4 the brush will be exposed on lowering, the body 1 forming a hand-grip. The bottom of the body part may be similarly reversible, to carry e.g. another brush or a pad.
Patent GB-610571-A (GB)
Title: Improvements in or relating to agricultural and other land-working machines
IPC: A01B49/00
Filed: 1946-04-08
Abstract: 610,571. Agricultural implements. HAMLETT, H. W. April 8, 1946, No. 10761. [Class 6(i)] A bladed or tined conical tool 1, so shaped that soil is thrown into the interior, is mounted on a frame 14 directly attached to a tractor. The tool is driven through a shaft 6 and suitable gearing from the tractor motor, the shaft casing 19 being pivotally mounted on shaft 10. Pivotally mounted on the tool casing is a feeler 18 which may be hollow and provided with passages to convey weedkiller or fertilizer to the soil, the said feeler being provided at one end with a wheel 34 which rides on top of the soil. The feeler rides over obstructions and allows the tool to rise. A hydraulic cylinder 30 connects the tool with a lever 22 having at one end a screw 24 by which the tool is raised or lowered into operation. The hydraulic cylinder which is fed by a pump on the tractor holds the tool to its work and is provided with a relief valve 33 which opens when excess pressure is applied to the tool allowing oil to escape and the tool to rise. The hydraulic cylinder may be adapted to lift the tools in place of the screw 24. A number of tools may be mounted, on a common shaft such as the shaft 10, on a heavy endless-track vehicle. In a modification the end of the feeler carrying the wheel 34 may be connected directly to the hydraulic cylinder so that on meeting an obstruction the tool is lifted, the wheel 34 being replaced by a skid or small endless track. Specification 610,600 is referred to.
Patent GB-288609-A (GB)
Title: A machine for finishing floors or other surfaces
IPC: A47L11/16
Filed: 1928-04-12
Abstract: 288,609. Woods, (nÚe Morgan), J. E., (Assignee of Woods, C. E.). April 13, 1927, [Convention date]. Waxing and polishing floors.-A machine for waxing, polishing, or buffing floors or other surfaces comprises a motor 3, the shaft 1 of which is adapted to impart rotation in opposite directions to shafts 43 carrying the members which operate upon the surface under treatment. The shafts 1, 43 are journaled in bearings in a two-piece casing 5 surrounding the motor. In the construction shown, the motor 3, which is an electric motor, drives through worm gearing the shafts 43 which are secured to rotary brushes 58. The handle 26 may be hollow to contain liquid for treatment of a floor, the liquid flowing through flexible pipes 50 and through the hollow shafts 43 to receptacles 55 situated within the annular brush stocks 57. Each receptacle 55 is provided with compartments, each containing a ball valve 61 which closes an opening in the bottom of the receptacle when the machine is stationary. As the machine is rotated, the ball valves through centrifugal action are moved to uncover the openings, allowing the liquid to reach the surface being treated. The liquid, instead of being contained in the handle, may be stored in a container which is detachably secured to the handle or which is disposed on the casing 6, means being provided whereby the container can communicate with the hollow shafts 43. The receptacle 55 may be replaced by a branched pipe adapted to direct the liquid towards the bristles of the brush. In the construction shown in Fig. 12, the hollow shaft to which the brush is secured is provided with a distributing member 102, the base 104 of which is inclined, as shown, and provided with an opening 105 normally closed by a ball valve 106 which is displaced when the machine is rotated. The base may be of curved form.
Patent GB-981838-A (GB)
Title: A new macrocyclic oxalactone and its use in perfumed compositions
IPC: C11B9/00
Filed: 1963-03-19
Abstract: The invention comprises 11-oxahexadecanolide and a process for the preparation thereof by heating 11-oxa-16-hydroxyhexadecanic acid to form a polyester which is thereafter lactonized by, for example, co-distillation with glycerol. 11-oxa-16-hydroxyhexadecanic acid may be prepared by the reaction of 10-chlorodecanic acid with the monosodium compound of pentanediol-1.5.  Specifications 490,044, 655,428, 793,555 and U.S.A.  Specifications 2,163,109 and 2,202,448 are referred to.ALSO:A perfumed composition comprising 11-oxahexadecanolide and one or more other substances which may or may not have odoriferous properties is employed in soap preparations. The examples relate to "Lavender" and "Heno" perfume compositions comprising 11-oxahecadecanolide. Specifications 490,044, 655,428, 793,555 and U.S.A.  Specifications 2,163,109 and 2,202,448 are referred to.ALSO:A perfumed composition comprising 11-oxahexadecanolide and one or more other substances which may or may not have odoriferous properties is employed in cosmetic preparations.  The examples relate to "Lavender" and "Heno" perfume compositions comprising 11-oxahexadecanolide.  Specifications 490,044, 655,428, 793,555 and U.S.A. Specifications 2,163,109 and 2,202,448 are referred to.
Patent GB-452198-A (GB)
Title: Improvements in or relating to hand bags
IPC: A45C13/06
Filed: 1936-04-15
Abstract: 452,198. Handbag fastenings. DAVIS, D., 34, Beech Street, Barbican, London. April 15, 1936, No. 10898. [Class 44] A handbag is provided with fastening means at the centre and ends of the frame, under control of a single operating device disposed at one side of the frame. The bag is of the kind having frame members 2, 3 connected by hinged members 5, member 3 nesting, when the bag is closed, in member 2 which is of angular section. Two slidable finger - operated members 12, 13 centrally disposed on the side of member 3, are urged apart by springs, not shown, and carry hook catches 10 adapted to snap into engagement with apertured lugs 15 on member 2. At the same time sliding rods 16 receiving motion from members 10 have their outer ends 19 projected into engagement with sockets 20 at the ends of member 2. A key-operated lock 14 may be provided. As an additional security, stirrups 22, Fig. 5, pivoted near the ends of member 2, may be swung down to embrace the ends of members 2, 3 in the closed position.
Patent GB-1381434-A (GB)
Title: Digital electric data processing systems
IPC: G06F12/08
Filed: 1973-03-06
Abstract: 1381434 Data processors INTERNATIONAL BUSINESS MACHINES CORP 6 March 1973 [13 April 1972] 10912/73 Heading G4A A store capable of shifting a number of items, each comprising data and an identifying key, around two closed loop paths of unequal length, the longer path including the shorter path and an input/output stage, can be used as one level of storage accessed as a function of the previous access history or as a directory in a virtual memory system, and for this purpose has a comparator for comparing a presented key with the key of an item in the input/output stage. Magnetic bubble domain registers may be used. Intermediate speed store.-A page of data comprising D data bits and a virtual address comprising K bits are stored in each of N columns of stages. A search address applied on bus 18 is compared at 17 with the N virtual addresses held in shift registers 11-1 to 11-K by successive left shifts through the input/output stage N which, in the static state, holds the address of the most recently accessed page. If a match is found, the corresponding page is passed through output gate 16, and the remaining items are reordered to reflect the latest access history. If no match is found after N shifts, detected by register 12, successive single right, left and right shifts are performed to place the least recently accessed item (from stage 1) into input/output stage N for replacement and to re-order the remaining items, the previous newest item being moved by this process to stage N-1. Directory.-When used as a directory for slow speed store such as a disc file, bits D and bits K represent the real and virtual addresses of pages of data respectively and the store acts as a virtual to real address translator. For bulk storage a plurality of directory stores operating in parallel may be provided to allow for faster searching, the allocation of the most frequently used pages to different stores, and use of other stores when one is waiting for replacement of its data.
Patent GB-315456-A (GB)
Title: A new or improved chair back cushion or rest
IPC: A47C7/42
Filed: 1928-04-13
Abstract: 315,456. Garrett, T. H. April 13, 1928. Seating cushions, securing in position. -Spring urged clips or hooks 5 attached to the sides of cushions grip the side rails 6 of a chair back Fig. 1, or take into holes in the sides, Fig. 2. In the latter case the ordinary back can be omitted. The cushion is adjustable.
Patent GB-215386-A (GB)
Title: Improvements in or relating to braking systems for motor cycles and like velocipedes
IPC: B62L3/02
Filed: 1924-05-03
Abstract: 215,386. Fortini (nÚe Borrani), Veuve G., Fortini, L., and Fortini, G., (Representatives of Fortini, A.). May 5, 1923, [Convention date]. Brakes, arrangement and disposition of and braking.-The frictional drag on a brake applied to the rear wheel of a motor cycle, is utilized to effect the application of a brake on the front wheel. Fig. 1 shows a motor cycle provided with a brake block b which when applied by a cable c to a drum a on the rear wheel applies the brake block g to the front wheel by a cable e connected to a lug d, the block b being mounted so as to be capable of limited movement with the rotating drum a. A spring such as f is interposed in the connections so as to limit the pressure applied to the front wheel block. Fig. 2 shows a rear band brake i arranged to apply a front band brake o. An arrangement in which a rear external band brake applies a front internal brake and also one in which a rear internal brake applies a front block brake are also shown. According to Figs. 7 and 8, blocks 3 adapted to be applied to the rear tyres by levers are slidably mounted in a casing 5 so as to operate the front wheel brake by a lever, the sliding movement being resisted by a spring 4. Specifications 196,578, [Class 103 (i). Brakes &c.], and 207,780, are referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that the invention may be applied to three-wheeled cycle cars and that back wheel brakes may be operated in the manner above described. This subject-matter does not appear ia the Specification as accepted.
Patent GB-966995-A (GB)
Title: Improvements in vapour generators
IPC: F22D1/16
Filed: 1961-03-27
Abstract: 966,995. Indirectly heated steam boilers. BABCOCK & WILCOX CO. March 27, 1961 [March 28, 1960], No. 11066/61. Heading F4A. In a steam boiler comprising a horizontal, cylindrical pressure vessel 12 containing below a water level 14 therein a bundle of U-shaped tubes 20 which convey hot vapour or vapourliquid mixture from an inlet header 34 to an outlet header 36, rapid circulation of water over the tubes 20 is promoted by enclosing the tube bundle between outer and inner baffles 52, 54 to provide a generally U-shaped space 56 for the upward flow of water over the tubes and outer and inner downflow spaces 58, 60 conveying water to the bottom of the space 56. Downflow of water in the inner space 60 is assisted by a flow of feedwater from a pipe 32 located in the top of this space and having downwardly directed perforations therealong. Water treatment chemical feed lines 62 and blowdown lines 64 are positioned above the downflow spaces 58 on each side of the tube bundle. Steam coming from the tube bundle is released more uniformly from the surface of the water in the vessel 12, thus promoting a more effective separation of the steam and water by locating a triple baffle 66 consisting of three spaced perforated plates just below the surface. Specification 775,156 is referred to.
Patent GB-603584-A (GB)
Title: Improvements in or relating to radio-communication systems
IPC: H04B1/38
Filed: 1945-05-02
Abstract: 603,584. Radio signalling. BRINKLEY, .J. R. May 2,1945, No. 11111. [C]ass 40 (v)] In a radio communication system operating at frequencies such that reception is limited to optical ranges, two or more transmitters are employed, operating on adjacent carrier frequencies. The transmitters are simultaneously modulated with the same signal, the carrier frequencies being so chosen that all lie within the radio-frequency passband of the receiver, but are so separated that interfering cross-modulation products fall outside the audio passband. The invention is more particularly intended for communication with a mobile receiver, and may be employed for reducing the effect of local field-strength variations, the transmitters then being located on adjacent sites, Fig. 1 (not shown). As arranged for covering an extended service area, Fig. 2 (not shown) two transmitters are located on separated sites, and are simultaneously modulated by means of radio links from a third control station. In a further arrangement, Fig. 3, the control station I relays signals from the station Z to the stations II, III, by means of the radio links E-F, S-R2, S-R3, respectively. The transmitter A at the station I covers an area additional to the service areas of the stations II, III, being operated by means of the radio link S-R1. The link S-R1 may be via a transmission line, or alternatively the transmitter A may be modulated directly from the receiver F, delay networks being employedto correct the phase relationships of the modulating signals at the three transmitters A, B, C. In an arrangement covering an extended area, Fig. 4 (not shown), a plurality of transmitters are sited to give overlapping service areas, each operating on one of four frequencies, the arrangement being such that any two transmitters operating on the same frequency are separated by at least the service area of a transmitter of different frequency. In an arrangement according to the invention, the transmitting frequencies may be chosen so that intermodulation products fall outside the audible range, or alternatively the audio passband of the receiver may be restricted so as to eliminate them. Specification 183,416, [Class 40 (v)], is referred to.
Patent GB-1268456-A (GB)
Title: Rotary distributor
Inventor: WEBSTER MILLARD ANDERSON
IPC: F02P7/02
Filed: 1970-03-09
Abstract: 1,268,456. Rotary distributers. M. A. WEBSTER. 9 March, 1970 [24 March, 1969], No. 11211/70. HeadingHlN. An ignition distributer having a primarycircuit make-and-break system comprising a wiper contact and rotary conductive segments, and a secondary-circuit spark distribution system comprising a rotary wiper and stationary segments as in Specification 1,198,416 is modified by mutually inverting the two systems, the make-and-break segments 42 being at the top of the rotor 31 while the rotary wiper 47 and stationary segments 44 are axially near the bottom of the rotor. Segments 42 are interconnected by a ring R engaged by a leaf-spring brush 35 having a lead 37 to a primary-circuit terminal 36 carried on the cover 16 of a twopart housing 29, 25, for the rotor 31. A top member 23 fitted on housing portion 25 by clips 24 is oscillatable thereon by a suction device (14, Fig. 1, not shown) and carries the wiper contact 58 which is earthed via plate 59, rod 60, spring 62 and screw 63 to the conductive base 10. Wiper 58 and brush 35 engage the rotor via slots 581 and 35<SP>1</SP> in housing portion 25. A counter-weight 51 is carried by rotor 31 diametrically opposite the wiper 47 and engages the bore 52 to act as a spacer. In order that leads to sparking plugs may extend symmetrically around the distributer whatever the actual firing order, an annular printed-circuit board (65, Fig. 6, not shown) may be clamped between cover 16 and housing portion 25 carrying conductors and spikes to suitably interconnect the segments 44 and leads 45.