baber/WOPTO huggingface dataset:
Patent GB-650290-A (GB)
Title: Improvements in pressure alarms
IPC: F16K37/00
Filed: 1948-07-05
Abstract: 650,290. Diaphragm pressure gauges, alarms. STOKOE, C. L., and MONITOR PATENT SAFETY DEVICES, Ltd. July 5, 1948, Nos. 17967/48 and 12928/49. [Class 106 (ii)] In pressure alarm systems of the type described in Specification 435,133 it is necessary for the operation to ensure that air, for operating the whistles which come into operation when the system protected suffers a predetermined loss of pressure, is actually available to operate the whistles when required. Although a pressure gauge is provided on the air manifold its reading may be due to leakage past a faulty valve f which may nevertheless be closed sufficient to prevent operation of the whistles. A test cock a is therefore now provided which allows air to escape through a further whistle to prove the presence of the air supply. In addition, each whistle is provided with a separate cock r to stop the whistle, after it has sounded an alarm, while the defect in the system protected is attended to. In order to prevent this cock from remaining closed after normal working has been resumed a mechanical indicator m is illuminated when any valve r is in the closed position. The method by which any valve r may deflect the operating parts of the indicator m is shown in Fig. 2. The air test valve and associated whistle is shown in detail in Figs. 3 and 4 and comprises a rightangle passage in the rotary portion of the valve c operated by a handle b.
Patent GB-406904-A (GB)
Title: Improvements in wheel rims
IPC: B60B25/18
Filed: 1933-06-24
Abstract: 406,904. Vehicle wheels. MICHELIN ET CIE, Clermont-Ferrand, Puy-de-Dome, France. June 24, 1933, No. 18082. Convention date, July 26, 1932. [Classes 144 (i) and 144 (ii),] In rims of the type comprising a detachable sideflange 2 secured by a split ring 1 engaging a groove 3 in the rim-base 11, the surfaces 7, 4 of the flange 2 and groove 3 respectively, and the co-operating faces of the ring 1 are inclined to the vertical with the angle alpha greater than the angle alpha<1>. The operative limb of the ring 1 is thus of outwardly-converging wedge-section so that the inflation-pressure of the tyre tends to lock the ring in the groove. Fig. 2 shows a tool (not claimed), for use in assembling the flange 2, comprising a lever 9 with notches to receive the edge of the flange and a pivoted arm 13 adapted to engage pins 8 on the rim.
Patent GB-118213-A (GB)
Title: Improvements in Means for Securing Buttons.
Inventor: EDKINS WILLIAM JOHN
IPC: A44B1/44
Filed: 1917-12-07
Abstract: 118,213. Edkins, W. J. Dec. 7, 1917. Buttons.-Two buttons a, are attached back to back to the material f by means of a hollow rivet c, Fig. 4, or a solid rivet r, Fig. 5, which is headed up in such a manner as to allow botli buttons to tilt relatively to the eyelet or rivet; or the eyelet c may be formed integral with one of the buttons. In the arrangement shown in Fig. 4, the eyelet c of slightly less diameter than the holes in the buttons is provided with a flange c<1> and with a closed end c<2> which is headed up by means of an upper die h, whilst the eyelet is supported on a lower die g. In the arrangement shown in Fig. 5, the end of the solid rivet r is expanded on to a washer j, which engages a shoulder r<2> of the rivet and is spaced slightly from the button a.
Patent GB-393760-A (GB)
Title: Improvements in the manufacture of non-splintering glass
IPC: B32B17/10
Filed: 1932-06-27
Abstract: In making compound glass, the glass sheets, of which at least one is provided with a reinforcing sheet such as celluloid or acetyl cellulose are united by a transparent, permanently soft composition having an index of refraction equal to that of the reinforcing layer, and comprising gelatine or isinglass, glycerine and a substance which raises the melting point of the composition, for example alum, chrome alum, formaldehyde, or potassium bichromate.
Patent GB-255877-A (GB)
Title: Improvements in railway turntables
IPC: B61J1/04
Filed: 1926-07-21
Abstract: 255,877. Gefia Akt.-Ges. f³r Industrielle Anlagen, (Assignees of Waagner- Biro Akt.-Ges.). July 21, 1925, [Convention date]. Turntables. - Railway turntables with divided main guides connected by resilient or flexible members have a detachable connection for the main girders 1 comprising supports 14 carried by springs 11 which depend from girders 7 - - 10 attached to cross girders 5, 6 which rest on the plate 3 of the bearing 4. The supports 14 rest on the flanges of channels or the shoulders 12 of plates 13 secured to the springs 11. The supports 14 are secured to the springs by means which are detachable if the spacing of the cross girders will not permit the passage of the supports. The springs may be placed close together to dispense with the inner supports, or additional cross girders may be placed between the springs. One spring is placed on each side of the rail 2 at each main girder end, and the main girders 1 may be connected by a channel 33 apertured for the passage of the spring ends. The springs 11 may be single or laminated.
Patent GB-274112-A (GB)
Title: Application of hall effect and similar electrical phenomena to radio and allied subjects
IPC: H03F9/00
Filed: 1927-07-09
Abstract: 274,112. Craig, P. H. July 9, 1926, [Convention date]. Hall effect, utilizing; converting alternate currents.-The transverse potential difference produced by the longitudinal passage of current through a conducting - plate in a perpendicular magnetic field is used for the rectification of alternating electric currents. In the application to a rectifier, shown in Fig. 4, alternating current is passed longitudinally from c to d through conducting plates 1, 2, 3 arranged in parallel and separated by insulating-sheets and thence through a solenoid S producing the perpendicular magnetic field. The transverse potentials in the plates are connected in series by suitable connection of the edges e, j. Since the longitudinal current and the magnetic field are both alternating, the transverse potential difference will be direct. According to a modification, conducting-material on an insulating base is etched so that two systems' of films are in parallel longitudinally and in series transversely. The plates are then placed side by side instead of in stacks.
Patent GB-934096-A (GB)
Title: Improvements relating to disc brakes
Inventor: WILSON ALEXANDER JOHN
IPC: F16D65/00
Filed: 1958-06-07
Abstract: 934,096. Brake discs. GIRLING Ltd. Sept. 7, 1959 [June 7, 1958], No. 18291/58. Class 103 (1). In order to damp out brake squeal in disc brakes a continuous or divided ring 12 is located in a peripheral groove 11 and the effective diameter of the ring in relation to the groove ensures that, although the ring is capable of movement relative to the disc, there is sufficient frictional grip between the ring and the disc to allow the ring to rotate with the disc to suppress vibrations.
Patent GB-219991-A (GB)
Title: Improvements relating to backplates or holders of slicing machines
IPC: B26D7/02
Filed: 1924-07-31
Abstract: 219,991. Berkel, C. F. M. van, (Assignee of Maatschappij tot vervaardiging van Snijmachines volgens van Berkel's Patent en van Andere Werktuigen). July 31, 1923, [Convention date]. Cutting slices in succession.-Relates to means for securing the backplate on the meat table of a slicing-machine. The backplate 1 is provided with claws 2, which engage the guide post 3 of the meat clamp 13, and a handle 4 having a recess in which a lever 5 is pivoted on a pin 6. The upper part 10 of the lever 5 is pressed away from the handle 4 by a spring 11 and the lower part 7 engages a recess in a projecting plate 9 secured to the meat table, the recess and end 7 of the lever 5 being outwardly diverging. The recessed plate 9 may be replaced by two spaced vertical circular pins, the lower end of the lever 5 then being of circular section. The backplate is removed, without removing the clamp 13, by disengaging the handle 5 from the plate 9 and releasing the claws from the post 3. The clamping-means are constructed as described in Specification 138,907. An arrangement of meat clamp and backplate stated to be of the usual type is also described.
Patent GB-882178-A (GB)
Title: Melt spinning of polyolefines
IPC: D02J1/22
Filed: 1958-06-09
Abstract: 882,178. Melt-spinning polyolefines. UNION CARBIDE CORPORATION. June 9, 1958 [June 10, 1957(2)], No. 18305/58. Drawings to Specification. Classes 2(2) and 2(6) A substantially normally crystalline polyolefine resin having a melt index of at least 1À0, when determined as described in ASTM Test Method D-1236-52T, is melt-spun to form continuous filaments which are stretched so that their length is increased by at least 200% at a temperature of at least 100‹C. and not higher than 5‹C. below the melting point of the resin. The polyolefine may initially have had a melt index in the range 0.001 to below 1À0, and may have had its melt index raised to fall within the range 1À0 to 200 by heating it under controlled conditions of time and temperature such that it undergoes pyrolysis to a degree sufficient to raise the melt index by the required amount without extensive molecular degradation of the polymer. The depolymerization of the polymer. is effected as far as possible in such a manner that only the higher molecular weight components of the polymer are depolymerized, the range of molecular weights of the components of the polymer thus being narrowed. The preferred ranges of melt index are 3À0-15, 2À0-50 and 5-20 for polyethylene, polypropylene and a mixture of 80 mole per cent 3-methyl-l-butene and 20 mole per cent 4-methyl-l-pentene respectively. The pyrolysis step may be combined with the spinning operation, cooling and remelting of the pyrolyzed polymer thus being avoided. Pyrolysis temperatures and corresponding times may be within the range 325-450‹C. and 600-10 seconds. The polyolefines include those prepared from branched and unbranched aliphatic α, #-unsaturated olefine monomers containing 2-20, and preferably 2-12, carbon atoms. In the case of branched monomers, the branch chain must be positioned at least 1 and preferably 2 carbon atoms removed from the nearest ethylenically unsaturated carbon atom. In an example, a polyethylene resin having a melt index of 0À18 is pyrolyzed in a mill at 397 ‹C. to increase its melt index to 9À5 and is melt-spun at 200‹C. to form filaments, which are solidified by a concurrent flow of air at room temperature and then wound on to a bobbin. The yarn is then passed through a tube supplied with steam at 2 atmospheres absolute pressure corresponding with a temperature of 121 ‹C., and stretched so that its length is increased by 890%. Specification 823,309 is referred to.
Patent GB-920916-A (GB)
Title: Core shearing device
Inventor: WARKOCZEWSKI JOSEPH THOMAS
IPC: B22C9/18
Filed: 1961-05-19
Abstract: 920,916. Pencil leads. GUSTIN-BACON MANUFACTURING CO. May 19, 1961, No. 18367/61. Class 146 (3). [Also in Group XXII] A machine for cutting lengths of graphite and clay cores as used in centrifugal casting machines of the type described in Specification 847,454 comprises a block 10 having feed passage 30 into which lengths of core are fed, and transverse passageways 33, 38, the upper of which contains a reciprocating cutter bar 36 and the other a reciprocating control bar 40, each bar having a core passage 37, 41 parallel to the feed passage but not axially aligned with the core passage in the other bar. When the core passage 37 in the cutter bar 36 us aligned with the feed passage 30 a length of core is fed into the feed passage and its lower end engages the control bar and when the cutter bar and control bar are moved longitudinally until the core passage 41 in the control bar 40 is aligned with the feed passage 30, a predetermined length of core is sheared off by the cutter bar and falls out of the block through the core passage 41. The bars are reciprocated by compressed-air from an inlet 18, and compressedair applied to an inlet 27 holds the length of core down on to the collar 42 of the control bar before shearing. Air from the inlet 27 is fed to the passage 37 via passages 28, 32, after shearing to blow out scrap.
Patent GB-106955-A (GB)
Title: An Improved Anti-skidding Device for Wheel Tyres.
Inventor: RINFRETT NAPOLEON
IPC: B60C27/08
Filed: 1916-12-22
Abstract: 106,955. Rinfrett, N. Dec. 22, 1916. Tread bands.-A detachable anti-slipping band comprises side-wires 10 and spaced cross-wires 12 each formed of two parts looped together at 17, then twisted and hooked at 16 to eyes 13 on the side-wires. The latter may each be in one piece or in jointed sections, the meeting ends being connected by snap-hooks 14.
Patent GB-896408-A (GB)
Title: Improvements in or relating to concrete floor structures
IPC: E04B5/19
Filed: 1960-05-25
Abstract: 896,408. Concrete floors. ROBINSON, H., and STANLEY, P. M. Jan. 26, 1961 [May 25, 1960], No. 18425/60. Class 20(4) Hollow filler blocks for concrete and like floors are made of light-weight material such as cement-bound wood wool or wood shavings and are formed with separate upper and lower parts, the lower part 10 having an upstanding flange 12 along or adjacent each longitudinal edge 19, each such flange having at least one step 15 on its inner surface. In use, alternative upper parts 20, Fig. 1, 25, Fig. 3 or 26, Fig. 5 can be supported at different heights to close the top of the cavity bounded by the flanges 12. An end wall 18 is provided at each end of the lower part 10, and horizontally extending flanges may project from the bottom at the ends of the lower parts to define channels between the blocks which extend transversely of the blocks. Solid fill-in formers 37 which may be trimmed to a required width may be used at the floor edges.
Patent GB-217785-A (GB)
Title: Improvements in flexible shaft couplings
IPC: F16D3/74
Filed: 1923-07-17
Abstract: 217,785. Simms, F. R., and Simms Motor Units (1920), Ltd. July 17, 1923. Universal joints. - In universal joints of the type in which a rubber or like elastic block d is secured to members e attached to the shafts b, c, one side as shown, or opposite sides, of each member e is omitted and the block is held in position by plates i secured to the members by cross bolts j. The block d can thus be removed without disturbing either the members e or the' shafts b, c. The rubber within the members e may be hardened, and the block may be square, polygonal, or circular and flattened to engage the plates i.
Patent GB-560484-A (GB)
Title: Improvements in or relating to luminescent materials
IPC: C09K11/08
Filed: 1942-12-29
Abstract: 560,484. Luminescent materials. ROTHSCHILD, S., and CATHODEON, Ltd. Dec. 29, 1942, No. 18455. [Class 39 (i)] In the production of a luminescent copper activated zinc cadmium sulphide or zinc cadmium sulphoselenide, the amounts of free sulphur or selenium or zinc or cadmium and the amount of copper are adjusted before firing the mixture in an inert atmosphere to adjust the long wave emission relatively to the short wave emission and different types of halide salts are added according to the colour desired. The inert atmosphere may be at a pressure higher than atmospheric and may consist of nitrogen with or without the addition of water vapour or sulphur vapour. In an example a mixture of zinc sulphide with 15 per cent cadmium sulphide, 2.5 per cent magnesium chloride, .5 per cent sulphur, and .0001 gram of copper per gram of sulphide is heated in an enclosed muffle filled with nitrogen to 1150‹. Specification 550,800 is referred to.
Patent GB-812277-A (GB)
Title: Automatic voltage control of precipitator rectifiers
Inventor: BEHAGUE JACK RUSSELL
IPC: B03C3/68
Filed: 1955-06-27
Abstract: 812,277. Automatic control systems for electrostatic precipitators. LODGE-COTTRELL Ltd. June 27, 1956 [June 27, 1955], No. 18528/55. Class 38 (4). [Also in Group XXXVII] An electrostatic precipitator 14 supplied from rotary rectifier 13 driven by motor 2 has cut-outs 9 and an autotransformer 4 in the primary circuit of its high-voltage transformer 12, the autotransformer being adjusted by a motor 49 having a " raise " winding energized periodically by a time relay 50, 51 and a " lower " winding energized through contacts 36 by a relay 37 itself operated by current transformer 8 and relay 39, 40 when excessive current flows in the primary circuit of transformer 12. When a heavy current of short duration flows, overload coils 10 open contacts 11 to de-energize relay 16 and so open cut-outs 9, and also open contacts 17 preventing immediate re-energizing of relay 16 and close contacts 18 energizing motor 19. Motor 19 rotates a disc 54 against spring 55 and a peg 57 on the disc operates contacts 20, 21 and 22; it first closes 20 to maintain itself energized during the cut-out reclosing cycle, then closes 21 to energize relay 23 which closes contacts 24 re-energizing coil 16 to close cut-outs 9 and holding contacts 17, and open contacts 18. Peg 57 then closes contacts 22 to short-circuit relay 23 and open contacts 24, and then opens contacts 20-22 simultaneously, switching off the motor 19. After a predetermined number of such operations (depending on the number of pegs 57) a longer peg 58 operates to close contacts 28 and energize relay 29 from transformer 52 and bridge rectifier 53; relay 29 is coupled to relay 30 and this latches closed contacts 31 in an alarm circuit and opens contacts 32 and 33. The opening of 32 de-energizes clutch 27 so that spring 55 may return disc 54 to its starting position, and the opening of 33 switches off motor 19. Thus, the overload coils act to open cut-outs 9 and then reclose them, until after a predetermined number of such operations the cut-outs are held permanently open; the apparatus is then re-started by " on " button 34 which latches relays 29, 30 in the position in which contacts 32, 33 are closed and 31 open. An " off " button 35 is also provided ; this breaks the circuit of relay 16 and also energizes relay 29 to act as described above. A time-switch 25 opens contacts 26 at predetermined intervals to de-energize clutch 27 and return disc 54 to its starting position so that " lock-off " only occurs when a predetermined number of overload trips occur in a predetermined time. " Raise " and " lower " buttons 43 and 44 allow manual adjustment of voltage, and limit switches 45 and 46 limit the travel of contact 47. An arrangement is described and illustrated in the Provisional Specification having minor differences in the circuit of relay 39, 40 and in associated circuits.
Patent GB-949856-A (GB)
Title: Improvements in apparatus for washing surfaces of, for example, walls and ceilings
Inventor: PATERSON IAN
IPC: A47L13/22
Filed: 1961-05-24
Abstract: 949,856. Cleaning walls and ceilings; reservoir pads and brushes. REVVI KNIGHT Ltd. May 17, 1962 [May 24, 1961], No. 18710/61. Headings A4F and A4K. Pump 17 supplies cleaning liquid to a trowel 6, having a porous pad 14 or a brush, from a portable plastic bottle 16, the flow of liquid to the trowel being controlled solely by manipulation of the pumpoperating knob 18. The trowel consists of a perforated aluminium plate having the pad 14 secured tautly to it by four coil springs. Alternatively, a perforated brush stock may be attached to the underside of the plate. According to the Provisional Specification, a towel with an elasticated border may replace the pad 14. Specification 680,230 is referred to.
Patent GB-403946-A (GB)
Title: Improvements in or relating to prepayment gas meters
IPC: G07F15/08
Filed: 1932-07-02
Abstract: 403,946. Prepayment mechanism for gas meters. WILSON, J. H., The Mill House, POOLE, D. C. E., The Elms, both in Baginton, near Coventry, and TWIGG, G. F., Beckfield, Barnes Road, Castleford, Yorkshire. July 2, 1932, No. 18711. [Class 27.] Price-changing mechanism.-In prepayment gas meters of the kind having a screwed spindle 2, Fig. 3, which is displaced axially in one direction to open the valve by rotation of an axially immovable internally-threaded quantity wheel 3, and which is rotated at a predetermined speed by the meter mechanism so as to move in the opposite direction to close the valve, means are provided whereby, when a predetermined quantity of gas has been consumed, the rate at which the spindle is operated to close the valve is automatically changed. The meter normally drives the spindle 2 through a shaft 4 having a worm 5 to engage a worm-wheel 6 which is, however, slidably mounted on the spindle 2 so that, when the rate is to be changed, the wheel 6 is slid into engagement with a worm 10 on a parallel shaft 7 geared to the shaft 4 by wheels 8, 9. The wheel 6 is moved by striking mechanism controlled by an angularly adjustable cam 11, the striking mechanism comprising a spindle 24, Fig. 1, having upper and lower cranks 25, 26. The crank 25 is held against the cam 11 by a torsion spring 27 and the crank 26 moves the wheel 6. The cam 11 is carried by a sleeve 20 rotatable on a fixed pin 21, and its upper face is calibrated in terms of minimum consumption so that it may be set with respect to a fixed pointer on the pin 21. The cam is rotated by a worm-wheel 19 on its sleeve 20 meshing with a worm 18 on a shaft 17 which is driven through worm gearing 12, 13, 15, 16 and a cross-shaft 14 from the shaft 4. When the predetermined consumption is reached, the cam has been rotated from its set position so far that it allows the spring-loaded striking mechanism to move the wheel 6 into engagement with the worm 10. To reset the cam, it is pushed down against the action of a spring 23 thereby disengaging the wheel 19 from the worm 18. It is then rotated to the required consumption and released for the spring 23 to return it to its normal axial position with the parts 18, 19 again in mesh.
Patent GB-760069-A (GB)
Title: Improvements in or relating to apparatus for making and sterilely enclosing pipettes
IPC: A61D7/00
Filed: 1954-06-25
Abstract: 760,069. Packaging. MANDT, P. June 25, 1954, No. 18721/54. Class 94(1) [Also in Groups V, VI and VIII] A sterilely enclosed pipette, particularly for veterinary purposes, is formed by cutting a polystyrene, polyvinyl chloride or polyethylene tube 2 having a polyvinyl chloride covering 6 into lengths, the covering being stretched before each cut to provide a length of covering beyond each tube. The covering is then rolled back and the end of the tube moulded to the desired shape (see Group V). The ends 19 of the covering are then heat sealed by transversely corrugated jaws 14. One half 16 of the jaws is parallel and the other half 17 inclined. The jaws may have a coating 15 of " Fluon " (Registered Trade Mark). In a modification, several pipettes may be enclosed in one covering.
Patent GB-236745-A (GB)
Title: Improvements in and relating to focussing devices for photographic cameras
IPC: G03B13/26
Filed: 1924-08-07
Abstract: 236,745. Dunnett, D. C. Aug. 7, 1924. Focusing - devices. - A small portion of the camera back is cut away and a miniature semiopaque focusing-screen is fitted so that it can be moved into and away from the focal plane. In a camera for roll film bands the small screen D is mounted by a resilient frame C secured to the back K, and is moved forward into the focal plane by the extension piece B of an outer hinged cover A forming, with side pieces E, a viewing shade.The forward movement of the screen is limited by an adjustable bolt F. A resilient supporting plate H for the film has an opening for inspecting the markings on the back of the film, and the camera is more particularly intended for film bands with openings for the focusing screen interspaced between the sensitive film areas, such as described in Specification 236,852. Specifications 13592/13 and 3060/14 also are referred to.