baber/WOPTO huggingface dataset:
Patent GB-1455931-A (GB)
Title: Method and a device for localization of a light impact on the photocathode of a photomultipler
IPC: G01J1/42
Filed: 1974-01-18
Abstract: 1455931 Position detections COMMISSARIAT A L'ENERGIE ATOMIQUE 18 Jan 1974 [23 Jan 1973] 2561/74 Heading H4D To determine the position at which a light spot, e.g. from a scintillation crystal, strikes the target of a photomultiplier tube 8 Fig. 4, the resultant beam of electrons produced by the target is defocussed, e.g. by a lateral magnetic field, and a localized electric field is scanned across the target. The anode signal S Fig. 2 produced by the light spot has a linear decay part as shown dashed. When the electric field scans across the light spot and the beam of electrons is not defocussed, a bulge appears in said decay part (Fig. 2 (a)). When the beam of electrons is defocussed however, the bulge is changed to a more easily measurable 'change of sign' (cross-over point) with reference to the said linear decay part (Fig. 2 (b)). The time of the 'change of sign' is thus detected and, with reference to the scanning of the electric field, gives a coordinate of the light spot's position. The electric field is applied by means of two sets of parallel wires crossed with respect to each other to form an X-Y matrix 10, and placed against the face of the photomultiplier tube 8. A voltage pulse is applied to each of the X wires in sequence, commencing in synchronism with the detected start of the anode signal and having a scanning period shorter than the duration of the light spot. This produces a first 'change of sign,' C1 Fig. 3 in the anode signal S 1 . The voltage pulse is then sequentially applied to the Y wires to produce a second 'change of sign C 2 '. To enable the determination of the timings T 1 , T 2  of the two 'changes of sign' with respect to the start of the anode signal S 1  the anode signal is split along two paths S 1 , S 2  in one of which (S 2 ) it is delayed by an amount # and voltage shifted by an amount e. A comparator 16 produces an output according to the rules:- resulting in a pulsed output giving the desired timings T 1 , T 2 . The time T of starting of the anode signal is fed to the scanning pulse generator 33, whilst the timings T 1 , T 2 , respectively indicative of the spot's X and Y coordinates are used, via time to voltage converters 24, 26, to give deflection voltages for a CRT display 32. The invention may be applied to a γ-radiation camera. Reference has been directed to the Comptroller to Specification 1,320,540.
Patent GB-1276936-A (GB)
Title: Tool supporting mechanism for a mixing machine
IPC: B01F15/00
Filed: 1970-05-15
Abstract: 1276936 Mixers LICO AG 15 May 1970 [19 May 1969] 23646/70 Heading B1C Mechanism for resettably supporting mixing tubes comprises arms 3 carrying the tools and each of which is axially adjustable in a sleeve 4 rotatable but axially restrained between collars 4b, 4c, each sleeve having a series of apertures 5 and each arm having a bore 6 which registers in each of a series of axialpositions of the arm with a respective one of the apertures 5 to receive a fastening pin. (For Figure see next page)
Patent GB-958912-A (GB)
Title: Improvements relating to apparatus for testing electrical circuit breakers
Inventor: REECE MICHAEL PETER
IPC: G01R31/333
Filed: 1962-01-24
Abstract: 958,912. Testing circuit breakers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 24, 1963 [Jan. 24, 1962], No. 2683/62. Heading G1U. Apparatus testing a circuit breaker TCB comprises an alternating source V transformer coupled over T 1  through auxiliary circuit breaker ACB to supply a large low voltage test current, and also transformer coupled over T 2  and spark gap G2 to charge capacitor C 2  over switch S2, e.g. a vacuum switch. Capacitor C 1  across TCB is connected to shunt S 2 , C 2  through inductance L 1  and spark gap G 1 . Initially, gap G 2  is triggered and S 2  is closed so that the resonant current in C 2 , S 2 , G 2 , T 2  develops a charging voltage on C 2 . S 2  is opened to interrupt the current at zero point, and gap G 2  deionises. Auxiliary breaker ACB is closed and later opened to pass a test current into TCB, which opens to trigger gap G 1  and discharge C 2  into the gap of TCB to pass a small additional test current followed by a high restriking voltage. L 1 , C 1  have a reactance equivalent to the working circuit of TCB and the output voltage of T 2  is phased to correspond in polarity to the restriking voltage across TCB and to have amplitude such as to develop the required recovery voltage across the gap. At the second or third cycle of the restriking voltage after gap G 1  is triggered, G 2  is again triggered to connect T 2  in parallel with C 2  over switch S 2 , which rapidly opens at the first restrike current zero to disconnect C 2 , so that T 2  applies the recovery voltage. C 2  may alternatively be charged from a separate D.C. source. The test conditions approximate to those of practical operation.
Patent GB-572634-A (GB)
Title: Improvements in the plasticisation of rubber and the like
IPC: C08K5/09
Filed: 1941-02-28
Abstract: Natural or synthetic rubber, guttapercha and balata are plasticized by means of naphthenic acid or a metal or ammonium salt thereof, e.g. zinc naphthenate, or a substance or substances capable of forming these.  The acid or salt may be applied to the surface and allowed to diffuse into the rubber with or without heating.
Patent GB-969661-A (GB)
Title: Improvements in or relating to apparatus for transferring articles from stationary platforms to moving conveyors
Inventor: ARBER ROLAND SACKVILLE PRESTON
IPC: B65G47/82
Filed: 1962-01-24
Abstract: 969,661. Endless conveyers. U. D. ENGINEERING CO. Ltd. March 19, 1963 [Jan. 24, 1962], No. 2724/62. Heading B8A. An apparatus for transferring crates 45, 46 from a stationary pallet 11 on to an endless chain conveyer moving along guides 14 comprises a stand 10 for locating the pallet and a pusher 34, 34a for laterally pushing the crates on to a support 16, the latter projecting up from between and from the outside of the conveyer chains and operable to lower the crates on to the conveyer. The support 16 is pivotally mounted on a fixed part of the apparatus by means of parallel links 20, 21 and the upward vertical motion of the support is coupled with a sideways motion which in the elevated position places it next to the pallet. The support 16 is actuated by a pneumatic ram 24, pivoted at 25 to a fixed part of the apparatus and at 27 to the common pivot of a pair of toggle links 28, 29 the remote ends of which are pivoted to the support at 30a and to the fixed part of the apparatus at 30. The pusher comprises a roller mounted carriage 32 having cross-bars 35 which push the crates and which extend between two uprights of the carriage superstructure spaced apart to accommodate the pallet between them during the pushing motion. The carriage 32 is actuated by two coaxial rams 37, 39 having a common plunger, the movement of the first ram 37 causing one crate or stack of crates 46 to be deposited on the support 16 and the movement of the second ram 39 causing the deposition of the second crate on stacks of crates 45. The crates are positioned on the support 16 by means of an arresting frame 44. A pair of pulleys on the conveyer chain sprocket-wheel shaft adjacent the pallet, project up through the support 16 and above the chains to assist in moving the crates on to the chains as the support is lowered. The pallet 11 is located on the stand 10 either by inclined means 12 or by means of a pivoting frame, Fig. 5 (not shown), which locates under a lip on the pallet as the support 16 rises. The operating cycle is started by depression of a manual button, whereupon the ram 37 retracts to move the pusher 34, 34a which deposits the crates 46 on the support 16. Upon reaching the arresting means the crates and the pusher operate valve means whereby the ram 24 extends to lower the support 16 and the crates 46 are deposited on the conveyer. At the bottom of its travel, the support 16 operates valve means which cause retraction of the ram 24 and the support rises and thereby operates further valve means which cause retraction of the second pusher ram 39. The second stack of crates 45 are thus deposited on the support and are lowered as before, while the pusher operates valve means which cause the extension of both pusher rams 37, 39 and hence the pusher is fully retracted from the pallet. A reset valve is provided in case of obstruction of the pusher.
Patent GB-326295-A (GB)
Title: Improvements in or relating to the construction and erection of partitions in buildings
IPC: E04B2/80
Filed: 1929-01-26
Abstract: 326,295. Ripper, H. T. Jan. 26, 1929. Partitions; panelled work.-Vertical ribs B on the pillars C and recesses in the edges of the panels A are made approximately semicircular in section. The pillars are of less thickness than the panels, and may be made of wood, vulcanized fibre, compressed cane fibre, or hollow metal. Metal strips may be secured to the panels across the pillars, and the pillares and strips may be covered by an ornamental pilaster. Specifications 13254/02 and 219,225 are referred to.
Patent GB-1200416-A (GB)
Title: Tubular heat exchangers
IPC: F28D7/02
Filed: 1968-01-18
Abstract: 1,200,416. Steam generators. COCKERILLOUGREE-PROVIDENCE S.A. 18 Jan., 1968 [24 Jan., 1967], No. 2775/68. Heading F4A. The tubes of a steam generator are arranged as two identical sets 1, 2 of helically wound tubes 3 wound in opposite directions and having corresponding tubes connected by connections 7. The tubes are arranged in coaxial cylinders of increasing diameter, the number of turns of any one helical tube, e.g. 4, being greater than that of a helical tube, e.g. 5 or 6, of greater helical diameter. Each tube is of identical length.
Patent GB-621980-A (GB)
Title: Improvements in or relating to process and apparatus for tempering flat glass or articles of flat glass
IPC: C03B27/052
Filed: 1947-01-29
Abstract: 621,980. Tempering glass. PILKINGTON BROS., Ltd. Jan. 29, 1947, No. 2831. Convention date, June 15, 1945. [Class 56] In apparatus for low pressure tempering flat glass or articles in which jets of quenching fluid are directed on to both faces simultaneously from opposed jet tubes, each set of tubes projects from the front wall of a compartment to which the quenching fluid is admitted, the fluid advancing the jet tubes against spring pressure to quenching position close to the surfaces of the glass before the jets are projected. In the form shown in Fig. 3, the front wall carrying the jet tubes 4 is separated from the rear wall by the concertina bellows 12. Admission of blowing air from a fan 13 first expands the bellows against adjustable springs 11 to advance the jet tubes to quenching position. In the form shown in Fig. 5 the hollow compartment 7 is connected to a piston 16 and is advanced to quenching position by the admission of a portion of the quenching fluid to the cylinder 15, the pipe 17a being of such dimension as to ensure the advance of the compartment 7 before the arrival of the blowing air at the nozzles 4 by way of the flexible conduits 18. The jet tubes are less than 5 mm. internal diameter and more than 50 mm. long and in quenching position are 25 mm. from the glass.
Patent GB-1363355-A (GB)
Title: Rigid synthetic plastics foam sheets
IPC: E04C2/20
Filed: 1972-01-20
Abstract: 1363355 Heat-insulating sheets DYNAMIT NOBEL AG 20 Jan 1972 [3 Feb 1971] 2864/72 Headings E1B and E1W [Also in Division F2] A heat-insulating sheet, particularly for use as a layer in a roof covering, comprises a substantially rigid polyurethane or phenol resin foam material formed into a sheet of substantial thickness and afterwards provided on each face with two sets of parallel straight grooves which cross each other at right angles, the groove depth being from 0.15 to 0.25 of the sheet thickness and the groove width being from 2-15 mm. The grooves in the two surfaces may be either opposite or offset from one another and are produced by milling to provide grooves of rectangular, wedge-shaped or semi-circular cross-section. A roof covering incorporating the sheet may comprise, from top to bottom, soft PVC foil, the foam plastics sheet, soft PVC foil, bitumenised roofing felt, and concrete surface. An alternative roof covering using bitumenised aluminium foil, perforated cardboard, and bitumen composition is also described.
Patent GB-588207-A (GB)
Title: Apparatus for the disposition of flue dust and the like
IPC: F23J3/06
Filed: 1945-02-05
Abstract: 588,207. Conveyers. THORSTEN, T., GEUE, J. E., and KELLOGG, R. F. Feb. 5, 1945, No. 2874. [Class, 78(i)] In an apparatus for the disposition of flue dust after collection in a separator 2, Fig. 1, dust first gravitates through a duct 5 into a comparatively large diameter watersealed bell 7, Fig. 6, and then accumulates in a water receptacle 12 which is periodically flushed through a drain 24. Flushing may be effected by the discharge of water through a nozzle 37 controlled by a solenoidactuated valve 38 and water may simultaneously be discharged through a nozzle 39. A balanced reticulated gate 41 pivoted at 42 serves to retain the larger particles until the gate swings down and closes a switch 48 to operate the solenoid valve 38. A baffle 25 terminates with its edge just above the normal water level of the receptacle but is submerged during the flushing operation to exercise a draft action tending to syphon the water out of the receptacle.
Patent GB-522242-A (GB)
Title: Improvements in or relating to shafts and to moulds therefor
IPC: F16H53/02
Filed: 1939-01-27
Abstract: 522,242. Moulding shafts. STANDARD TELEPHONES & CABLES, Ltd. (Laethem, F. van). Jan. 27, 1939, No. 2894. [Class 87 (ii)] [Also in Group XXIV] A shaft, e.g., a cam shaft, and particularly one moulded from phenol condensation product and having a spiral rib or spiral series of projections, comprises a plurality of unitary moulded sections positively held from rotation relative to each other. A shaft, Fig. 1, has an endless helical rib 1 at the' crossing points of which are guide projections 2. The shaft is made in sections each of which extends from one crossing point to the next and therefore comprises a 180 degrees turn of the helical rib. The sections have co-operating recesses which form holes for the projections 2. The intermediate sections are identical in form, but the end sections have a continuous portion of rib and require a second mould. The sections may be hollow, threaded on a spindle 3 and held together by screw-threads 4 and nuts 5 ; they have internal ribs adapted to engage slots in the spindle, and they may be held together by axial spring pressure. In modifications, the sections are (1) mounted on a wire spoke similar to a bicycle spoke and (2) mounted on a hollow spindle into the ends of which solid rods are forced. The mould, Fig. 4 comprises main and closure portions 20, 22, the portion 20 being apertured at 30 to receive mould members 26, 27, 29 and has a bore 31 to receive an extension 35 of the central mould member 33 secured by a nut 37. Ejecting holes 21 and an overflow groove 24 are provided. The parting line 28 of the mould members follows the centre line of the helical recess in which the helical rib is formed. The members 26, 27 have box-like recesses to receive the bottom and top mould members 29 which have bosses to form recesses for the guide projections 2, Fig. 1. A positioning pin 25, locating strip 23 and dowel pins are provided for the mould members. As the moulding flash comes on the top surface of the rib it need not be removed. Specifications 521,144, 522,198 and 522,467. [all in Group XXXIX], are referred to.
Patent GB-1237201-A (GB)
Title: Improvements in or relating to rear projections screens
Inventor: BENNETT FRANK PRESCOTT
IPC: G03B21/62
Filed: 1969-01-17
Abstract: 1,237,201. Coated products. GAF CORP. 17 Jan., 1969 [19 Jan., 1968], No. 2910/69. Heading B2E. [Also in Divisions G2 and G3] A rear projection screen comprises a transparent base coated on one face with a mixture of finely divided 2 to 6 micron particles of amorphous silica having capillary passages therein in a transparent organic material, silica being in the proportion of 1%-5% by weight. The transparent organic material may be a nitrocellulose lacquer, or a composition of 15% vinyl resin, 3% cyclohexanone, 61% di-isobutyl ketone, 10% xylol, 10% methyl isobutyl ketone, and 1% plasticizer such as di-butyl-phthalate. The silica is initially prepared as a concentrated mixture which is subsequently diluted with more lacquer for spraying on to the base. The base may be of polymethyl methacrylate, glass or polystyrene in which latter case the lacquer is a vinyl or acrylic emulsion.
Patent GB-415750-A (GB)
Title: Improvements in, or relating to, automatic circuit-breakers
IPC: H01H71/02
Filed: 1933-01-31
Abstract: 415,750. Automatic circuit-breakers. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield. Jan. 31, 1933, Nos. 2950 and 12480. [Class 38 (v).] Magnetic blow-outs.-In circuit-breakers of the type in which the contacts are locked closed by a toggle or other linkage, which lock is removed by a current-controlled device or devices on abnormal conditions arising in the controlled circuit, a member of a built-up, blow-out magnet core serves as a bracket for supporting a system of plate-like members whereby the principal pivots of the locking mechanism are carried. The bracket may also support a release coil and a thermal-release adjustment device. In the application to a breaker constructed according to Specification 415,129, the core comprises coil-carrying cheeks b produced from sheet-metal pressings, an end-member a, a solenoid housing c, a plate d supporting the thermal-adjustment device, and plates e housing and supporting the mechanism proper. The member a, Fig. 4, is a sheet-steel pressing having sides a<1> with attachment feet a<2>, and a strap a<3>, which is apertured at a<4> for the solenoid plunger, at a<5> for securing the solenoid coil, and at a<6> to receive the lugs e<4> on the plates e. The plate d is apertured at d<2>, Fig. 6, to receive lugs a' on the bracket a, and at d<3> to receive the switch-cover. Extensions d4 carry an adjustment such as shown in Fig. 3 of Specification 415,393. The plates e are notched at e<5> to engage notches in plate d and are apertured to provide pivots for the handle, trip-catch, movable-contact carrier, and one of the toggle links, the former pivot being in extension e<6>. The housing c is a U-shaped steel pressing, the side members c<2> of which are assembled between the cheeks b and sides a<1> to provide magnetic continuity. The lower end is recessed (Fig. 9) to receive the pivot of the contact-carrier. In assembling, the parts a, d, are secured together by riveting- over the ears a<7>, and the plates e are attached by riveting-over the ears e<4> and engaging notches e<5> with the notches in d. After the solenoid bobbin has been added by engaging its studs with holes a<5>, the housing c is secured by means of magnetic screws passing through c<2> and a<1>. The contact-carrier may be added either before or after the structure is fixed to the base, but preferably the trip catch is fitted to the plates e before the latter are assembled, and its pivot pin riveted over. The toggle and handle are then added. Alternatively, instead of riveting, push-pins may be employed for certain pivots and the sides c<2> so formed as to hold the pre-assembled pins in place. The Provisional Specifications refer also to Specification 418,361.
Patent GB-188598-A (GB)
Title: An adjustable foot rest for pillion riders sitting astride the carrier seat of motor cycles or cycles
IPC: B62J1/14
Filed: 1922-02-02
Abstract: 188,598. Keyworth, P. Feb. 2, 1922. Seat attachments.-Adjustable foot-rests for pillion riders sitting astride comprise two tubes or supports A carrying adjustable foot-rests F and secured by means of screwed spindles B and clamps and nuts C to the top frame of the carrier, and by means of bridge-pieces D and clips E to the stays of the motor-cycle or carrier. The footrests F have rubber treads G, and are secured in adjusted position by clips fitted with screws and nuts.
Patent GB-984537-A (GB)
Title: Control device for a conveyor
Inventor: LUDYK GUNTER
IPC: B65G47/48
Filed: 1962-01-26
Abstract: 984,537. Endless conveyers. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. Jan. 26, 1962, No. 3105/62. Heading B8A. Data carriers 3 carried respectively on each of the load carriers (not shown) of an endless conveyer are read by a device 4 at each discharge station. When a binary number carried by a carrier 3 agrees with the number corresponding to a station at which the load is passing through, the load is caused to be discharged. The carriers 3 comprise flaps 1a-1f so that a six-figure binary number can be set up by suitable selective energization of magnets 2. As the carrier passes through each device 4, the deflected flaps cause respective photoelectric circuits to generate signals which are handled by gates 6-8. A mechanical device is provided (Figs. 3a, 3b, not shown), to return the flaps 1a-1f to their inoperative position. A circuit using photo-transistors is described (Fig. 4, not shown). Inductive and capacitative devices may be employed in place of photo-electric devices (Fig. 5, not shown).
Patent GB-805444-A (GB)
Title: Improvements in and relating to shuttlecocks
IPC: A63B67/18
Filed: 1956-02-02
Abstract: 805,444. Shuttlecocks. NASH, R. J. Dec. 9, 1955 [Feb. 2, 1955], No. 3117/55. Class 132(3) The cap of a shuttlecock is made of thermoplastic material and the surface which is struck by the racket is provided by the free edges of a plurality of spaced co-axial projections 2 extending from one face of a diaphragm 1, the free edges of the projections being chamfered at 3. The cap may be moulded from its front end, the thermoplastic material being injected through a sprue 7 which is cut off when the cap is removed from the mould. A hole 4 for air-spill is formed in the innermost projection and in the diaphragm 1. A collar 5 of the cap may be frictionally engaged in overlapping relation with the narrow end of the skirt portion; alternatively the cap may be moulded in one piece with a thermosplastic flight skirt, Fig. 3 (not shown), or it may be used with a conventional feather skirt.
Patent GB-771884-A (GB)
Title: Improvements in or relating to burners for vaporised fuel
Inventor: IMBER ALFRED GREGORY
IPC: F23D11/44
Filed: 1954-02-03
Abstract: 771,884. Vapour burners. IMBER RESEARCH, Ltd. Jan. 24, 1955 [Feb. 3, 1954], No. 3251/54. Class 75(1)  A vaporizer for a pressure burner consists of a straight vertical tube having zones of filtering media 8 alternating with spaces 9 in which vaporization of the fuel takes place. The zones and spaces are defined by four coiled springs 6 arranged end to end within the tube and having narrow central portions and outwardly curving end portions. The end coils of the springs approximate in diameter to the inside diameter of the tube and are provided with washers 7. The annular spaces between the springs and the tube are packed with steel wool and the adjacent end portions of the springs define the vaporizing spaces 9. A cleaning needle 5 extends through the springs.