baber/WOPTO huggingface dataset:
Patent GB-816803-A (GB)
Title: Improvements in or relating to fluid measuring devices
IPC: G01F3/20
Filed: 1957-01-15
Abstract: 816,803. Liquid meters. PLATZER, H. Jan. 15, 1957 [Jan. 17, 1956 (2)], No. 1526/57. Class 69 (2). A diaphragm type liquid meter is provided with a snap-action device for changing over the distributing valves, a main diaphragm on reaching an end position bringing the device up to its dead centre position, and a secondary diaphragm then moving the device over centre. As shown, diaphragms 2, 2a provide metering chambers B, E, C and valves 30, 31 control the admission of liquid to the chambers from an inlet A and the exhaust therefrom to an outlet D. Fixed to the centre of diaphragm 2 are rigid members 6, 7 which are shaped to form a casing 8, 9 divided into two by the centre portion 2b of the diaphragm which portion forms a secondary diaphragm. The secondary diaphragm 2b is connected by a rod 10 to a snap-action toggle arrangement for actuating the valves 30, 31. In the position shown, liquid from the inlet A passes to chambers B, C, liquid from chamber E being discharged through a duct 38 to the outlet D. Diaphragm 2a will be moved first, as it is not restrained by the springs of the toggle arrangement, and then diaphragm 2 will be displaced to its end position carrying diaphragm 2b bodily with it. In this position the toggle will be in its dead centre position. Diaphragm 2b will now be flexed upwardly, and move the toggle over centre, so that valves 30, 31 are actuated to connect chamber E to the inlet and chambers B, C to the outlet to initiate a reverse stroke. The displacement of diaphragm 2a may be adjustable to vary the capacity of the meter. In a modification diaphragm 2a is dispensed with.
Patent GB-781729-A (GB)
Title: Improvements in and relating to drying machines
Inventor: COOCH JOHN HENRY
IPC: F26B5/16
Filed: 1955-01-18
Abstract: 781,729. Drying apparatus. COOCH & SONS, Ltd. Jan. 18, 1956 [Jan. 18, 1955], No. 1554/55. Class 34(2) A machine for drying potatoes &c. comprises a series of rotary rollers 1, Figs. 1, 2, mounted on shafts 2 and having a covering 3 of absorbent material, e.g. sponge rubber, the rollers being driven from an electric motor M by endless-chains 8 and sprockets 9. Potatoes are fed into the machine by an inclined shoot 11 and pass over the rollers to the discharge shoot 12, the distance between the rollers being such that the potatoes are held in the nip to absorb the moisture. Steel rollers 15 carried by shafts 16 revolve in frictional contact with the drying rollers so exerting a squeezing action on the sponge rubber and removing the absorbed moisture. The rollers 15 are pressed against the rollers 1 by springs 19 supported by channels 20 adjustable by cams 21 mounted on shafts 22 rotatable by a handle 24.
Patent GB-189684-A (GB)
Title: Improvements in or relating to electric fuses, cut-outs or the like
IPC: H01H85/044
Filed: 1922-01-19
Abstract: 189,684. Siemens Bros. & Co., Ltd., and Wood, H. J. Jan. 19, 1922. Contacts.-A holder 1 for fuses, links or the like, is fitted with loosely-mounted contact-blocks 3 which are heat-insulated from the holder by asbestos or like fireproof material 7. The contactblocks are attached to the holder by means of dove-tailed or like projections 6 engaging corresponding recesses in the holder, each block being retained in position by a cement filling 8 or by other means. The edges of the projections 6 are rounded to allow the contact-blocks to move into alignment with the fixed contacts.
Patent GB-111586-A (GB)
Title: Improvements in Apparatus for Lessening the Risk of Vessels from Submarine, Torpedo and Mine Attacks.
Inventor: GREENHILL JOHN HAYTON
IPC: B63G9/00
Filed: 1917-02-02
Abstract: 111,586. Greenhill, J. H. Feb. 2, 1917. Torpedo screens.-A screen for ships against torpedoes, mines, and su marines comprises a fringe or fringes of steel &c. plates c' hanging from floating-cylinders or pontoons c at the ends of hinged booms d and a. powsprit a. The cylinders are hollow and watertight and may be packed, or not,with cork &c. The plates may be hung in a single row centrally under the floats, or at the sides in a double row, as shown in Fig. 7, or both, to form a triple fringe. For the bow and stem, each plate c<1>, Fig. 9, may be separately suspended from a float cylinder, as shown, the cylinders being arranged in stepped order. The cylinders are lashed together and attached by ropes &c. to floating tubes or logs extending from the bowsprit to booms on each bow, and on which the outer ends of these booms &c. are supported. The bow and stern plates may alternatively be suspended from pontoons c, as shown in Fig. 1, the plates c<1>. however, being arranged parallel to the fore and aft line of the ship. The bowsprits a is hinged at a<1>, counterweighted at b, and provided with a girder stay b<1> for raising and lowering. The booms may extend from independent tubes or logs arranged to float close to the vessel's sides which are protected therefrom by fenders.
Patent GB-1446099-A (GB)
Title: Breech mechanism
IPC: F41A3/00
Filed: 1974-01-14
Abstract: 1446099 Cartridge case extractors PEF TELLIE 14 Jan 1974 [29 Jan 1973] 01696/74 Heading F3C An extractor 10, 35 is positionable in a selected one of a pair of locations in a breech mechansim for ejection of a cartridge casing in either of two different directions. A head 4, 30 of the mechanism has a central bore for a firing pin 6 and is contained in a bore of a member 2 or a sleeve which has two symmetrically spaced chambers, Fig. 5, which provide the alternative extractor locations. In Fig. 2, the head 4 is manually rotatable by the removal of a pin 5 (Fig. 5) from a socket in the head to produce mutual axial separation of the head 4 and the member 2, and mutual rotation thereof to align the pin with a further socket in the head, this also moving the extractor 10 from the left hand chamber to the right hand chamber (as seen in Fig. 5). The extractor has a hook-shaped end to retain a flange 16a of a cartridge case 16, this acting as a pivot since an ejector pin 8 is biased outwardly from the head 4. Upon retraction of the complete mechanism, the case 16 is ejected through an opening 20 on either side of the weapon according to the extractor position. In the Fig. 2 embodiment, the pin 8 is diametrically opposed to the extractor 10 in the head 4. In Fig. 5, the head 4 is not rotated relative to the member 2 for extractor displacement; alternatively, the extractor 10 is removed from the head, after unlocking of the pin 5, for location changing, recesses 22 retaining the extractor in operation. Here, the ejector pin 8 is vertically below the firing pin. In Fig. 11 the pin 8 is replaced by a pivoted member 33. An obturator 13 is used to seal the chamber which is not used by the extractor 10 in operation. The locking pin 5 has a lip for engagement by a case flange 16a for head unlocking.
Patent GB-1203403-A (GB)
Title: A set of boxes of different sizes
IPC: B65D21/04
Filed: 1969-01-10
Abstract: 1,203,403. Boxes. H. SCHAFER, and T. SCHAFER, [trading as FRITZ SCHAFER K.G.]. 10 Jan., 1969 [11 Jan., 1968], No. 1699/69. Heading B8P. A set of boxes e.g. of plastic which may be nested or stacked comprises a number of rectangular boxes 1-3 of different sizes, and each box, except the largest, has its length equal to the width of the next largest box; the walls of each box slope outwardly from the base and have fins therein extending the full box height, bearing surfaces being provided on the tops of the side walls, at least some of which are formed by the upper ends of the fins. The bearing surface or surfaces on one side wall are staggered with respect to such surfaces on the opposite side whereby, in the nested position the fins of one box are received in recesses of the adjacent box, and by turning each box through 180 degrees relative the adjacent one the boxes can be stacked, the corners on one side of a box and the middle portion on the opposite side being supported on the bearing surfaces of the next lower box. The largest box, Fig. 3, may have bearing surfaces 11-16 provided by the tops of fins and since the box wall thickness is substantially constant the walls are correspondingly recessed on the outside to facilitate nesting, the smaller boxes have a single wide bearing surface on one side and two narrower ones adjacent the corners on the other. Abutments may be formed at each bearing surface to prevent lateral movement of stacked boxes.
Patent GB-161712-A (GB)
Title: Improvements in damp-proof and condensation-proof walls
IPC: E04B1/62
Filed: 1920-01-20
Abstract: 161,712. Giles, C. Jan. 20, 1920. Double walls; wall-t ie s.-Damp -proof and condensation-proof walls and wall-sections are constructed by moulding a hollow concrete wall or section between outside boards b, Fig. 1, and inner sheet-iron partitions f spaced from the boards b by buttons h and wedged apart by double wedges g, g', the space between the concrete -sections, after setting, being filled with a solid core of coal tar, sand, and cow hair mixed and boiled together. Ties of I-section extend between the concrete parts across the core, and aligned adjoining sections are connected by ties k, Fig. 4, arranged as shown in Fig. 5.
Patent GB-574593-A (GB)
Title: Improvements in and relating to structural members for use in the construction of vehicle bodies and for similar purposes
IPC: B62D25/04
Filed: 1944-02-01
Abstract: 574,593. Structural members for vehicle bodies. NORTHERN COACHBUILDERS, Ltd., and HATTON, H. W. Feb. 1, 1944, No. 1850. [Class 108 (i)] In a structural member or pillar for road vehicles, of the kind comprising wing flanges c, Fig. 1, of double thickness and side walls b provided with inward grooves d of rectangular section, the side walls b terminate in outwardly projecting flanges e. The structural member or pillar is preferably made in one piece from flat strip metal or extruded light alloy and has the end wall a doubled back at its extremities to form wing flanges c down its sides, and the overlapped portions of the flanges are bent at right angles to the end wall a to form the side walls b. The outer portions of the side walls are bent as shown to form inwardly-extending grooves d of rectangular section and provide narrow outwardly-turned lateral flanges e down the sides of the open face of the structural member or pillar. The extremities of the wing flanges c may be reinforced by the insertion of wires. An insert g, Fig. 5, of wood may be fixed in the pillar and may project beyond the flanges e for the attachment of panelling. Metal pans s may be attached to the insert g and welded at r to the web flanges, and fillets t of wood may form complementary means for housing the windows u. The metal fans may be replaced by wood inserts.
Patent GB-1005652-A (GB)
Title: Improvements in or relating to recording echo sounders
Inventor: EVERETT DENIS JOHN
IPC: G01S7/60
Filed: 1963-01-16
Abstract: 1,005,652. Echo-sounders. MARCONI SOUNDING DEVICE CO. Ltd. Nov. 13, 1963 [Jan. 16, 1963], No. 1892/63. Heading H4D. An echo sounder comprises means operative in response to received echo signals for producing signals for application to the recording means with a delay relative to the instant of echo reception determined by a predetermined relationship being reached between a time-base voltage initiated by the echo signal and a reference voltage. This allows a low recording stylus speed to be employed when an expanded scale recording is utilized for shallow depths sounding. The invention is described with reference to the " block " circuit of Fig. 1, the waveforms produced by the various " blocks " of which are shown in Fig. 2, similarly numbered. As shown, each transmitted pulse 1 triggers two monostable circuits 2, 3 to their unstable states, circuit 3, the output of which in the latter state closes a gate 4, remaining in such state for a time sufficient to prevent conduction by the gate of energy directly received at 5 from the transmitter whilst circuit 2 remains in the unstable state for a period P sufficient to encompass the reception time of echoes in the depth of interest. The transmitted pulse initiates a first time-base voltage source 6 the maximum voltage reached by which when an echo 5 is received (which resets 2) being held in a store 7 as a reference voltage. The output pulse from circuit 2 is differentiated in 8 and the positively-going output employed to trigger a bi-stable circuit 9 which then initiates a second time-base voltage source 10 the output of which is fed together with the reference voltage from store 7 to a differential amplifier 11, the latter producing a negatively-going output pulse when the voltage from source 10 exceeds the reference voltage from store 7. This output pulse is differentiated in 12 and utilized to trigger a monostable circuit 13 from which a pulse 14 for application to the recording means is derived. The latter pulse is also differentiated in 14 and the output employed to re-set store 7 and bi-stable circuit 9. The scale expansion produced by the invention is determined by the rate of voltage rise of the time-bases 6 and 10 the general condition being given by (E - 1)X 6  rate of voltage rise of time base 10=rate of voltage rise of time-base 6, where E=ratio of scale expansion.
Patent GB-1190719-A (GB)
Title: Propeller Shaft Seal
IPC: F16J15/34
Filed: 1969-01-13
Abstract: 1,190,719. Propeller shaft seals. NIPPON OIL SEAL INDUSTRY CO. Ltd. 13 Jan., 1969 [16 Jan., 1968], No. 1894/69. Heading F2B. A propeller shaft seal comprises one or more pairs of sealing elements each element including a cover 3 or 19, a seal retainer 9 or 14 for holding a face-type ring 12 or 13, inner and outer resilient rings 7, 8 or 16, 17 for mounting the seal retainer within an annular groove provided in the cover, and spring means 5 or 22 interposed between the cover and seal retainer. As shown, a pair of elements are provided on each side of the stern member 2 and an inflatable seal 27 is also provided and supplied with compressed air for use during seal failure or replacement. The rings 7, 8, 16 and 17 can roll in use to permit tilting of the rubbing seal faces, the conical surfaces of the seal retainers being provided, if desired, with a heat-insulating coating of rubber or a synthetic.
Patent GB-1090300-A (GB)
Title: Improvements in washers and assembled, headed fasteners and washers
IPC: F16J15/12
Filed: 1965-04-08
Abstract: 1,090,300. Bolts; washers; applying predetermined tension to bolts. ATLAS BOLT & SCREW CO. April 8, 1965 [May 13, 1964], No. 14897/65. Heading F2H. A washer 20 comprises a metal or non-metallic backing member 21 having a hole 21b pierced therethrough so as to provide an extruded sleeve 21d projecting from the face 21c there being cemented, bonded or otherwise secured to the face 21c a rubber-like sealing ring 22 encasing the sleeve 21d and extending into the hole 21b. On assembly of the washer on a screw 10 the face 21a of the backing member bears against the head (10a) of the screw, the shank (10b) being then inserted and screwed into small drilled holes in work members 31, 32 so that member 31 is retained firmly on member 32. As the washer approaches its driven position the lead end of the sleeve 21d pierces the ring 22 and engages the work member 31 thereby controlling the sealing action of the washer and preventing over-driving of the screw. Further driving force applied to the head 10a causes the face 21c to assume a concave shape. To emphasize the concaving action of the backing member, a screw, Fig. 5 (not shown), has a concave underface provided by an annular lip 10e.
Patent GB-556075-A (GB)
Title: Improvements in training devices for conveyor belts
IPC: B65G39/071
Filed: 1942-02-12
Abstract: 556,075. Endless-belt conveyers. ROBINS CONVEYING BELT CO. Feb. 12, 1942, No. 1904. Convention date, May 15, 1941. [Class 78 (i)] A conveyer belt B is maintained in a central position by means of a "crowned" or barrel-shaped idler roller R which can rotate freely on its own axis and has also pivotal movement about a pin 15 in a plane parallel to the plane of the belt. In the construction shown the roller R has a cylindrical metal sheet 9 and an outer rounded rubber sleeve 10, and is mounted by means of a ball-bearing 18 on a sleeve 16 pivoted on the pin 15 which is fixed to a stationary shaft 6. The outer race 19 of the ball-bearing is clamped between the halves of a housing 20 which is secured to the roller by a pair of clamp rings 21 having a wedge action. Specification 385,368 is referred to.
Patent GB-328219-A (GB)
Title: Improvements in or relating to turntables for gramophones and the like
IPC: G11B3/60
Filed: 1929-01-19
Abstract: 328,219. Potter. W. G., and Cheshire, E. L. Jan. 19, 1928. Turntables.-A gramophone turntable is made of two sheet-metal plates a, b, so constructed and secured together as to form a hollow structure. The upper plate a is preferably slightly concave, and the plate b is dished as shown, an annular space tapering towards the periphery being formed between the plates. Concentric strengthening ribs n are formed on the plate a, and radial ribs o on the plate b. Flanges f, g at the rims engage with each other, the flange g on the lower plate being spun or forced over at g<2>, and preferably being used to secure the outer edge of a covering f<1> of cloth, velvet, &c. The peripheral flange f may be omitted. A reinforcing and weighting ring e is provided at the rim of the turntable as shown. A central opening in the plates is fitted with a boss j, which may be secured to the spindle m<1> by springs, as described in Specification 328,218. A flanged cap i is screwed or otherwise fitted into the boss, the flange h being received in a recess g<1> in the plate a, and serving to clamp the inner edge of the cloth &c. covering f<1>. A flange k on the boss j is riveted or detachably secured to the plates a, b.
Patent GB-701983-A (GB)
Title: Improvements in and relating to phenyltrifluoroethylene and polymers therefrom
IPC: C08F12/20
Filed: 1951-01-25
Abstract: Polymers are obtained by polymerizing phenyltrifluoroethylene alone or in admixture with other polymerizable materials such as styrene, vinyl acetate, methyl methacrylate and ethyl acrylate, with the aid of heat and/or light.  The polymers may be formed in the presence of polymerization catalysts, e.g. ozone, ozonides, barium or sodium peroxide, acetyl, lauroyl or stearoyl peroxide, benzoyl or acetyl benzoyl peroxide, perborates, persulphates or perchlorates, ditertiary butyl peroxide, tertiary butyl hydroperoxide and boron trifluoride.  The catalyst concentration may be within the range from 0.1 to 4 per cent. by weight of the total mixture.  The preferred temperature for carrying out the polymerization is from room temperature (20 DEG  to 30 DEG  C.) to temperatures above 100 DEG C., e.g. 130 DEG  C.  In the example phenyltrifluoroethylene is polymerized in the presence of benzoyl peroxide by heating at 70/75 DEG  C. for 72 hours.ALSO:Phenyltrifluoroethylene is prepared by passing a mixture of benzene and chlorotrifluoroethylene in the vapour phase through a heated zone maintained at a temperature of 350 to 700 DEG  C.  The reaction may be carried out in the presence of any of the following catalysts: an acidic substance such as boron trifluoride, substances with high specific surfaces such as activated carbon, substances which form free radicals such as lead tetramethyl, metals and alloys such as copper and bases such as ammonia.  In the example, phenyltrifluoroethylene is formed in the presence of boron trifluoride.
Patent GB-1372989-A (GB)
Title: Machine for removing skin and scabs from vegetables
IPC: A23N7/02
Filed: 1972-02-04
Abstract: 1372989 Peeling &c. potatoes &c. E JEFFERSON and L CHRISTODOULOU 4 Feb 1972 [15 Jan 1971] 2071/71 Heading A4C A hand-held machine for use in removing skin and/or for removing surface scabs from potatoes or like vegetables comprises a body member, a powered rotary shaft 11 mounted within the body, and a cylindrical tool 15 connected to the rotary shaft so as to be driven thereby, said tool having a flat portion 16 which is exposed by the body member and whose longitudinal edges define cutting edges. The tool is provided with a cylindrical extension 17 and a gear wheel 18 on which a further tool 19 is mounted, which tool comprises a tapered portion of cruciform cross-sectional area to facilitate the removal of eyes from vegetables. A flexible drive cable 13 is attached to the opposite end of the rotary shaft 11, which cable is also attached to an output shaft 22 and a motor from whence the shaft 11 is powered. A helically coiled spring member 23, attached to a further shaft upon which is mounted a gear wheel which mates with wheel 18, is accommodated in a cylindrical recess of the body member. The recess has an entrance at one end adjacent the tool 15, and an extension at the other end on which may be fitted a pipe 24, for removal of debris during the skinning.
Patent GB-538610-A (GB)
Title: Improved method of and means for measuring high frequency voltages
IPC: G01R13/20
Filed: 1940-02-06
Abstract: 538,610. Cathode-ray tubes. STANDARD TELEPHONES & CABLES, Ltd., and FREMLIN, J. H. Feb. 6, 1940, No. 2298. [Class 39 (i)] [Also in Group XXXVI] A high-frequency voltage is measured by causing it to produce velocity modulation in an electron beam by means of a resonator tuned to the frequency of the voltage and subjecting the beam to a' constant deflecting field. Fig. 1 shows an arrangement in which the resonator consists of a pair of Lecher wires L, slotted for the passage of the beam, which is afterwards deflected by curved electrodes X and strikes a screen S, the length of the trace on the screen measuring the voltage applied to the Lecher wires. Modifications employing an oscillator of the coaxial form or three wires are also described. The beam may be subjected to both electric and magnetic deflecting fields, so as to reduce the total deflection without altering its sensitiveness as a voltmeter.
Patent GB-1262321-A (GB)
Title: Luminescent materials
Inventor: MATHERS JAMES E
IPC: C09K11/77
Filed: 1969-01-15
Abstract: 1,262,321. Luminescent materials. GTE SYLVANIA Inc. 15 Jan., 1969 [19 Jan., 1968], No. 2338/69. Heading C4S. A phosphor comprises lanthanum oxysulphide activated by erbium preferably having the formula (La 1-x Er x ) 2 O 2 S, where 0À05>x>0À0005. The phosphor is prepared by dissolving separately La 2 O 3  and Er 2 O 3  in HNO 3 , mixing and precipitating La and Er oxalates by adding oxalic acid. The precipitate is filtered at 110‹ C., fired in air then in N 2 -H 2 S at 1250‹ C. The oxalates may be replaced by nitrates, oxides, sulphates, acetates and tartrates; H 2 S may be replaced by a compound, e.g. thioacetamide, which decomposes to form H 2 S on heating. The phosphor is used in colour TV tubes and fluorescent lamps. Reference has been directed by the Comptroller to Specification 1,121,055.
Patent GB-1045781-A (GB)
Title: Method of separating octahydroanthracene from octahydrophenanthracene
IPC: C07C7/14
Filed: 1965-01-19
Abstract: Octahydroanthracene is obtained in pure form from a mixture thereof with octahydrophenanthrene by forming the mixture into a slurry of solid in liquid, separating the solid and recrystallizing from an alcohol.  The slurry is formed by cooling a liquid mixture to 10-50 DEG  C. and the solid is recrystallized from a C1-C3 alcohol at - 20 DEG  to 40 DEG  C.  Octahydroanthracene is formed in admixture with octahydrophenanthrene by disproportionation of tetralin in the presence of aluminium chloride or bromide or preferably hydrogen fluoride and boron trifluoride used in mol. ratio to tetralin of 1-100 mols. of H.F. and 0.1-10 mols. of BF3.  Reaction is effected at 0-110 DEG  C. under sufficient pressure to keep the H.F. liquid for 1 minute to 10 hours.  The organic product is distilled, preferably under vacuum to recover the above mixture.