baber/WOPTO huggingface dataset:
Patent GB-587509-A (GB)
Title: Improvements relating to centrifugal compressors and pumps
IPC: F04D29/46
Filed: 1939-12-19
Abstract: 587,509. Centrifugal pumps &c. WHITTLE, F. Dec. 19, 1939, No. 32476. [Class 110 (i)] In a centrifugal pump &c. the inlet has a number of fixed guide vanes 8 and rotating guide blades 2A, which may be formed by bending the impeller blades 2 in an axial direction. The vanes 8 are fixed to the sides of the casing by lugs 8A and to a number of curved guide rings 7 at the lower edges. They are curved as shown in Fig. 2 so as to impart a whirl to the -entering fluid. The blades 2A have an increasing pitch from the root radially outwards. Specifications 456,980, [Group XXXIII], 461,887, 471,368, [Group XXXIII], and 511,278 are referred to.
Patent GB-156085-A (GB)
Title: Improvements relating to machines for forming and cutting shapes from dough and the like
IPC: A21C11/00
Filed: 1920-11-17
Abstract: 156,085. Kalmeyer, A. C. A. Dec. 31, 1919, [Convention date]. Rolling - machines; feeding. - Relates to machines for forming shapes from .dough &c. of the type comprising a roller 2 formed with shaping - recesses 5 and co-operating with a feed-roll 3, and consists in the provision of a third roller 4 which cooperates with the roll 3 and is formed with recesses 6 similar to, but deeper than the recesses 5. In operation, the sheet of the dough passes between the rollers 2, 3, and the shapes impressed in the sheet enter the recesses 6 in the roller 4. A knife 7 cuts the impressed shapes from the sheet, and a plate 8 retains the dough shapes in the recesses 6 until they reach the delivery point where they may be detached by fingers 9 engaging narrow annular slots in the roller 4.
Patent GB-638821-A (GB)
Title: Improvements in knitting needles, and chiefly in needles for repairing runs in stockings
IPC: D04B17/04
Filed: 1945-12-01
Abstract: 638,821. Sewing. ETABLISSEMENTS VITOUX Dec. 1, 1945, Nos. 32500 and 32501. Convention dates, April 11, 1940. [Class 112] A needle, for repairing runs in knitwear, has a pivoted latch 3 provided with a narrow parallel sided slot 12 for engagement with the work thread b. The latch may be held in the open position by spring pressure, or by magnetization of the latch or of the needle body. Specifications 495,481 and 638,824 are referred to.
Patent GB-1092377-A (GB)
Title: Improvements relating to pulse generating apparatus
Inventor: SCOLES GRAHAM JOHN
IPC: H03K3/55
Filed: 1963-08-16
Abstract: 1,092,377. Pulse-generating circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 17, 1964 [Aug. 16. 1963], No. 32594/63. Heading H3P. In a pulse generator in which a pulse-forming network PFN is charged via an inductor from an alternating voltage source, a voltage doubler comprising two rectifiers and a capacitor is included between the alternating source and the charging circuit, the PFN being changed without further smoothing. As shown capacitor C is charged resonantly on negative halfcycles via inductor L2 and rectifier D1. On positive half-cycles, when a predetermined instantaneous voltage is reached, thyratron V2 is triggered which discharges capacitor C resonantly via inductor L2 into the PFN. The hydrogen thyratron V1 is subsequently triggered so as to discharge the PFN into the load. In Fig. 4 (not shown), the parallel combination of inductance and resistance is included in series with the PFN. In Fig. 7 (not shown), an inductor is included in series with the anode of rectifier D1 In Fig. 8 (not shown), the resonating inductors in the two rectifier circuits are combined as a tapped transformer. " Firing- through " of the thyratron V1 under fault conditions is prevented by the reverse rectifiers across the PFN.
Patent GB-263830-A (GB)
Title: Improved process of purifying gas of the kind derived from the distillation of coal or coke
IPC: C10K1/10
Filed: 1926-12-24
Abstract: 263,830. Soc. Ammonia. Jan. 4, 1926, [Convention date]. Scrubbing and washing plant and processes.- Coal gas at high pressure is washed with a large volume of cold water in a scrubber 2 containing screens, rings &c., impurities such as hydrogen sulphide and carbon dioxide forming unstable hydrates. The water issues from the scrubber through a pipe 7 and is caused to rotate a Pelton wheel or turbine 6 before discharging into a tank 8. Disengaged gas passes to a stack 9. The water is delivered by a pump 10 to a tower 13 in which at a pressure only slightly above atmospheric it is subjected to an air blast whilst flowing over piled-up material. The cleansed water is returned to the scrubber by a pump 4.
Patent GB-381759-A (GB)
Title: Improvements in or relating to epicyclic gearing
IPC: G05G15/08
Filed: 1931-11-26
Abstract: 381,759. Coating with metals. GILBERTSON & CO., Ltd., W., Pontardawe, and THOMAS, E., Greenbank, Coed-Gwylym, Clydach, Swansea, both in Glamorgan. Nov. 26, 1931, No. 32784. [Class 82 (ii).] Epicyclic reversing-gearing for driving the feed rolls of a galvanizing-machine is constructed to effect automatic temporary reversal of the driven member on overload, such as occurs when a sheet jams in the guides in the molten-metal bath. Bevel pinions 4, mounted on a carrier 8, engage bevel wheels 3, 5 carried respectively by a driving-sleeve 2 and driven shaft 6. The carrier 8 is normally held stationary by a projection 8a thereon engaging a lug 9, which however can yield on overload against a spring 14, weight, or pneumatic pressure to release it. As soon as the carrier then begins to turn counterclockwise, a pawl 11 carried thereby is freed from a stop 12 and turns on its pivot 15 under gravity or a spring to engage a ratchet wheel 10 on the driven shaft, so looking the gear solid and reversing the drive. At the end of a revolution, the stop 12 throws out the pawl and the parts 8a, 9 re-engage to restore normal drive. If, however, the overload persists, the cycle repeats, and, in severe cases, a lever 13 carrying the parts 9, 12 may be manually depressed to allow continuous reverse running, whereby a jammed sheet can be withdrawn from the machine.
Patent GB-645887-A (GB)
Title: Improvements in or relating to frequency conversion systems
IPC: H02M5/00
Filed: 1947-12-12
Abstract: 645,887. Frequency changing. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Dec. 12, 1947, No. 32794. Convention date, Dec. 14, 1946. Drawings to Specification. [Class 38 (ii)] A frequency conversion system comprises a plurality of electronic valves for interchanging power between two alternating current circuits characterized by two groups of valves, each group having a separate cathode bus-bar, a mid-tapped transformer connected across the two cathode bus-bars, and means to connect this mid-point to the neutral point of the supply. Fig. 1 and the description thereof in this Specification are substantially the same as in Specification 645,950. A further embodiment comprises an arrangement to operate on a six-phase supply having twelve ignitrons with their anodes connected to the phases in pairs, one in each group. The secondary windings of the ignitor coupling transformers are centretapped, thus each energizes the excitation electrodes of two ignitrons. The auxiliary anodes are energized without parallel phase energization as in the alternative embodiment in Specification 645,950.
Patent GB-1502407-A (GB)
Title: Knife having easily removable blade
IPC: A61B17/32
Filed: 1976-08-06
Abstract: 1502407 Knives CBS INc 6 Aug 1976 [12 Nov 1975] 32835/76 Heading B4B A knife comprises a tubular housing 20, a stem 30 extending through the tube and having a blade-holding chuck 35, 36 at one end and a toggle lever 40 pivotally mounted at the other end, the lever being adapted to engage the adjacent end of the tube such that when the lever is aligned with the tube a blade 37 is gripped by the chuck and when the lever is pivoted relative to the tube the blade is released. The lever end of the tube is formed with grooves 21 into which locate tabs 39 on the stem thereby preventing rotation of the latter.
Patent GB-1452412-A (GB)
Title: Air-cooled enclosure for an engine
IPC: F01P5/06
Filed: 1974-07-25
Abstract: 1452412 Engine casings CATERPILLAR TRACTOR CO 25 July 1974 [5 Nov 1973]  32862/74 Heading F1B An air-cooled enclosure 10 for an engine 39, a fan 67 and a heat exchanger 65 or 66 includes an internal wall 70 which divides the enclosure into an engine compartment 72 and a fan and heat exchanger compartment 74, the engine compartment having an air inlet 34 remote from the engine and an air outlet 57 into which the engine exhaust pipe 55 extends and forms therewith an ejector to create a low pressure in outlet 57 thereby to draw air through compartment 72, the heat exchanger being cooled by air drawn in by the fan 67 through top inlets 25 and side inlets (38) and expelled through outlets 30. Fig. 3 shows the ejector which consists of the exhaust pipe 55 concentrically disposed in air outlet pipe 56. Exhaust pipe 55 has a throat 58 forming a Venturi section into which projects the end of pipe 60 which communicates with pre-cleaners 49 in which dust is removed from combustion air flowing to the engine. In a first modification, pipe 60 is omitted and pipe 55 is of uniform diameter except for a short frusto-conical terminal portion providing a reduced diameter outlet. In a second modification pipe 55 is of uniform diameter throughout its length and pipe 56 has a section, surrounding the outlet end of pipe 55, which reduces in diameter in the direction of gas flow. Heat exchanger 65 contains engine coolant and heat exchanger 66 is an oil-cooler.
Patent GB-275073-A (GB)
Title: Improvements in portable belt conveyors
IPC: B65G65/00
Filed: 1926-12-31
Abstract: 275,073. Angerer, P. Dec. 31, 1926. Conveying apparatus; trimming and spreading apparatus; portable endless-belt conveyers ; feeding devices; directing and adjustably supporting; driving gear.-A portable endless-belt conveyer 1 is used in conjunction with an auxiliary endless-belt conveyer 17 for delivering material from a heap to a vehicle or for similar purposes, and is provided with a bucket conveyer 10 or other feed device at the lower end mounted on links, rollers, &c. so as to move freely in a direction substantially parallel to the conveyer and to rest on the heap at different heights above the ground and dig into the material by its own weight. As shown, the bucket conveyer 10 is carried on parallel links 11 pivoted on the frame of the conveyer 1 and raised by a winch 12. In use the conveyer 10 is raised, the end of the conveyer 1 is forced into the heap, and the conveyer 10 is then lowered as far as necessary. The lower shaft of the conveyer 10 is provided with lateral feeding screws 15. The conveyer 1 is pivoted on its frame at 5 and raised for transport by gearing including a toothed rack 7. In this position wheels 13 on the bucket conveyer rest upon theground. The conveyer 1 may be kept in a fixed position while the material is spread in a wagon A by means of the auxiliary conveyer 17. The latter is adjustable about a horizontal axis 20 and also about the vertical column 16, and is carried on a truck 18 which may be attached to the truck of the conveyer 1 by a towing connection. The conveyers 1 and 17 are driven by separate motors 9, 22, and the circuits may be connected by a plug-in switch for starting simultaneously. The conveyer 17 is provided with a counterweight 23 and a locking-pin. The conveyer 1 delivers to a hopper mounted above the column 16. If the material is to be screened, the hopper is provided with a perforated inner wall 25 and a double conical baffle 24 with perforated upper wall. Separate outlets 26, 29 for coarse and fine material deliver to the conveyer belt and to a throw-off belt conveyer 30 respectively. The conveyer 30 is pivotally mounted at 31 and the lower roller 32 rests upon and is driven by the conveyer belt 17.
Patent GB-330780-A (GB)
Abstract: 330,780. British Thomson-Houston Co., Ltd., and Morton, C. J. Feb. 26, 1929. Vehicle lamps.-In a motor-cycle headlamp an electric lamp bulb 7a, energized when the ignition switch is allowed to remain closed after the engine stops, is, together with an ammeter 12, placed inside a window 10 in the head-lamp casing, either the lamp or the window being, coloured. The switch 4a is combined with the lighting, charging and ammeter switch 11.
Patent GB-520607-A (GB)
Title: Improvements in and relating to reflectors
IPC: F21V7/09
Filed: 1938-11-15
Abstract: 520,607. Lamp reflectors. BRITISH THOMSONHOUSTON CO., Ltd. Nov. 15, 1938, No. 33206. Convention date, Nov. 17, 1937. [Class 75 (ii)] A bowl-shaped reflector 4 is divided by radial planes through the axis into panels 20 which are angularly displaced in the same direction about one edge in the normal vertical contour through corresponding angles so that the light is reflected laterally of the lamp filament 13 and its support 11 to avoid overheating without affecting the symmetry of the reflected beam. The angle of displacement varies, e.g., from 5 to 10 degrees from the bottom to the top of the panels so that a space free of reflected rays and of substantially uniform diameter is created about the axis of the reflector. The adjacent edges of the panels are connected by substantially radial parts 22.
Patent GB-860745-A (GB)
Title: Improvements in tea concentrates
Inventor: CHRISTIE THOMAS HENRY
IPC: A23F3/16
Filed: 1958-10-17
Abstract: Tea is infused in water or the like and the temperature of the infusion is lowered sufficiently to obtain a precipitate which is separated to obtain a sludge which is dried.  The sludge may be powdered or left in or made into granule or block form and contains all the extractable vegetable matter and soluble solids of the original tea, the tannic acid flavouring and aromatic substances being left in the infusion.  These substances or similar synthetic substances may be added to the sludge, e.g. after drying out of the infusion.  The infusion may be carried out by the "cascade process" and the bulk of liquid may be reduced prior to cooling which is usually to about 32 DEG F., the dissolved p  substances lowering the freezing point so that ice crystals are not formed.  Preferably the sludge is separated by centrifuging but vacuum filtering or settling out and decanting off the liquid may be used.  Precipitation may be assisted by adding to the infusion one or more liquids in which the sludge is insoluble, e.g. acetone or an alcohol.  The sludge may be dried by drawing air or other gases therethrough or by compression between heated plates.  After the precipitate has been separated from the infusion the liquid is mixed with a suspending-agent and the suspension separated, dried and mixed with the precipitate.
Patent GB-938419-A (GB)
Title: Improvements in and relating to infant chairs
IPC: A47D13/02
Filed: 1962-08-30
Abstract: 938,419. Babies' chairs; carriers. R. EZQUERRA. Aug. 30, 1962, No. 33324/62. Class 52 (2). [Also in Group XXXII] A babies' chair, which has two frame members 2 interconnected by a crossbar 3 and pivoted each to one side of the body, and wheels 5, is angularly adjusted by engaging struts 6 which have resilient sleeves 8 into any one of a series of recesses 9 in the back of the chair. The chair is converted into a baby-carrier (see Group XXXII) by pivoting the frames 2 about an axis 4, swinging the struts 6 round the body reengaging them in a recess 9 and using the rod 3 as a handgrip.
Patent GB-1190567-A (GB)
Title: A Method of and Apparatus for the Bonding of Butyl Sheet Material.
Inventor: YOUNG DANIEL ARTHUR
Filed: 1966-07-27
Abstract: 1,190,567. Seaming non-metallic sheet material. BUTYL PRODUCTS Ltd. 12 July, 1967 [27 July, 1966], No. 33706/66. Heading B5K. Two layers 4, 4a of butyl sheets are continuously bonded together in overlapping formation by interposing an appropriate adhesive layer 5 between the layers 4, 4a at the position where these layers overlap; passing the overlapping portions of the layers 4, 4a, 5 continuously between adjacent tracks 9, 10 of a pair of endless moving conveyers 7; subjecting the overlapping portions of the layers 4, 4a to heat and pressure, the pressure being applied through the tracks 9, 10, until bonding is effected; and withdrawing the bonded layers 4, 4a from between the conveyers 7. " An appropriate adhesive layer " denotes a layer of material, liquid or paste adhesive which will react with the butyl sheeting when subjected to heat and pressure so as to bond therewith. Preferably, this layer comprises a tape of chlorobutyl. More than two layers of butyl sheeting may be bonded provided that the overlapping portions of each layer are separated from an adjacent layer by chlorobutyl tape. As shown, the sheets 4, 4a and the tape 5 are fed from idler rollers 3, 1, 2, respectively, to the conveyers 7, the upper track 9 of which is vertically adjustable by means 15, e.g. a coarse screw, to accommodate different thicknesses of the sheets 4, 4a and the tape(s) 5. The sheets 4, 4a may be supported on idler rollers (15a), Fig. 2 (not shown), during passage between the conveyers 7. Each conveyer track comprises links 16, Fig. 3, articulated by hinge members 17 and each carrying a pair of rollers 18 and a bearing plate 19. Pressure plates 20, 22 act on the portions 10a, 9a of the tracks 10, 9 through the rollers 18. The plate 22 is vertically adjustable by means 23, e.g. a fine screw thread. Infra-red heaters 26 are located on opposite sides of the sheets 4, 4a so that the sheets and the chlorobutyl tape are heated prior to passing between the conveyers 7, during passage between the plates 20, 22 and on emerging from the conveyers 7 prior to passing between the pressure rollers 24.
Patent GB-190635-A (GB)
Title: Improvements in and relating to golf ball tees
IPC: A63B57/00
Filed: 1921-12-16
Abstract: 190,635. Tod, F., and Marr, Downie, & Co., Ltd. Dec. 16, 1921. Packing golf tees. - Conical paper golf tees are nested together as shown in Fig. 5 and are secured by a bifurcated fastener i. A conical metal plate g may be placed behind the tees to retain their shape when placed in the pocket.
Patent GB-789479-A (GB)
Title: Control device for the percussion pin of a projectile fuze
IPC: F42C9/16
Filed: 1955-11-25
Abstract: 789,479. Ammunition fuzes. VOLAND, A. Nov. 25 1955 [Dec. 6, 1954], No. 33918/55. Class 9(1) A percussion fuze for rotated projectiles having a spring-stressed firing pin is provided with self-destruction means comprising a dash-pot in which a spring-loaded piston moves against the damping action of a mass of silicone grease containing. Si (CH 3 ) 2  groups, the piston being held against displacement by means released by centrifugal force. The fuze has a body 1 with a screw-threaded shank 5 for connection to a projectile and an axially slidable firing pin 3 extending through a channel in a base plug 5. The head of the pin 3 bears against an elastic disc 9 housed in a member 10 within the fuze nose. Held in position by the plug 5 is a cylinder 33 housing a spring-stressed piston 34 surrounding a cylinder 36 containing a piston 37 which is held against forward movement by three spaced balls 40 bearing against the pin 3 and prevented from escaping by the piston 34. A slotted plunger 27 locking the firing pin 3 is held in position by a mass 31 of silicone grease similar to the mass 42 in the space between cylinders 33 and 36. On launching the projectile due to centrifugal force the plunger 27 forces the mass 31 through a calibrated hole 30 and as the mass escapes the plunger moves outwards. thereby releasing the piston 34. Spring 35 thereupon forces the piston 34 forwards so driving the mass 42 through a calibrated hole 43. The hole is so calibrated and the mass 42 and spring 38 so chosen that the piston 34 uncovers the balls 40 when self-destruction is to take place. As soon as the plunger 27 frees the pin 3 the fuze is armed ready for actuation on impact. If impact does not occur within a given time, when the balls 40 are freed they move outwards due to centrifugal force and release the piston 37 which is then driven by its spring against a shoulder on the pin 3 to force the pin 3 on to the detonator (not shown). In Fig. 2 a single dash-pot provides for muzzle safety and self-destruction. A piston 55 holding weights 53 in engagement with the firing pin is locked bv a bolt 57 secured by a split ring 58. After firing. when acceleration of the projectile ceases, the ring 58 opens under centrifugal force and releases the bolt 57 and the piston 55 is then freer and moves forwards forcing the dash-pot material 68 through openings 67, 69. As soon as the piston moves beyond the opening 67, the bolt 62 locking the,firing pin is released and the material 68 can only escape through openings 69. The fuze is then armed for ignition on impact. If impact does not occur within a given time, the weights 53 are freed and self-destruction takes place.
Patent GB-467471-A (GB)
Title: Improvements in devices for slitting tyre treads
IPC: B29D30/68
Filed: 1936-12-10
Abstract: 467,471. Slitting tyre treads. CONSOLIDATED RUBBER MANUFACTURERS, Ltd. Dec. 10, 1936, No. 33941. Convention date, May 15. [Class 31 (i)] A tyre tread is slit by a device comprising a base plate 1 curved to fit the tyre and provided with a track 3 on which is slidable a carriage 4 having adjustably attached to it by a screw 7 and slot 8 a cutting blade 6. The plate 1 is positioned so that the tyre is slit transversely or angularly by a fixed flange 9 and an adjustable flange 11. A gauge rod 14 determines the spacing of the slits. The track 3 and plate 1 may be of different curvatures so that slits of varying depth are cut. In modifications, (1) a cutting blade 6 is mounted on each side of the carriage, and (2) a two-edged cutting blade is provided to cut on backward and forward movements thereof.