baber/WOPTO huggingface dataset:
Patent GB-1463127-A (GB)
Title: Expansible fixing plug
IPC: F16B13/12
Filed: 1974-06-26
Abstract: 1463127 Screw sockets HILTI BEFESTIGUNGSTECHNIK AG 26 June 1974 [7 Sept 1973] 28267/74 Heading F2H An expansible plastics screw socket having axial slots 2, external circumferential grooves and a tapering axial bore is provided with resilient tabs 4 which can be accommodated in recesses 5 during insertion of the socket into a borehole but which, on expansion of the socket, project outwards to resist rotation of the socket, each tab 4 as shown in Fig. 3 being joined to the remainder of the socket along a root line parallel to the socket axis and having a first portion, following the circular cross-section of the exterior of the socket, and a second portion extending tangentially of the circular cross-section. The tabs 4 are preferably rectangular in planar development and may have a chamfered or rounded corner (7) as in Fig. 2 (not shown). There are preferably two diametrically-opposed tabs 4.
Patent GB-603651-A (GB)
Title: A sealing device for windows
IPC: E06B7/232
Filed: 1945-10-26
Abstract: 603,651. Catches. CHRISTENSEN, A., (trading as CHRISTENSEN & CO., A.). Oct. 26, 1945, No. 28332. Convention date, Aug. 6, 1942. [Class 44] [Also in Group X] For making a tight joint between a window frame 9 and casement 1 a metal fillet 7 is fastened by nails 8 along one edge of the casement, being pressed against the window by a spring-pressed supporting strip 3 accommodated in a groove 2 and guided by screws 4. The end of the fillet is bent down into the groove and rounded off so that the window may approach from either direction. A recess 12 is provided in the window frame to receive the fillet.
Patent GB-1276184-A (GB)
Title: Improvements in and relating to the production of lenticular screens
IPC: G03C5/40
Filed: 1969-06-04
Abstract: 1276184 Lenticular screens; diffraction gratings AGFA-GEVAERT A G 4 June 1969 [4 June 1968] 28351/69 Heading G2J A lenticular screen is produced by optically interfering at least two beams in a layer of photosensitive material to give an exposure that varies periodically over its area and thus a desired spatial variation in optical thickness, the layer then being developed and rehalogenized and/or tanned. The beams are coherent. The layer is preferably advanced between successive exposures. If desired a plurality of pairs of beams may form superimposed patterns on the layer. Where the pattern formed is of parallel, similar and equidistant lines the result is a cylindrical lenticular screen. Where two such sets of lines, one set being perpendicular to the other set, are formed a spherical lenticular screen results. The resultant screen may be metal coated and used as a mould to produce other screens.
Patent GB-714917-A (GB)
Title: Improvements in or relating to blackboard erasers
IPC: B43L21/00
Filed: 1950-11-21
Abstract: 714,917. Blackboards. O'SHIEL, E. M. Nov. 20, 1951 [Nov. 21, 1950], No. 28378/50. Class 146(2) A blackboard eraser comprises a rod 1 with felt attached, and the same length as the height of the blackboard, one end being pivoted to the centre of the bottom of the blackboard 2. The eraser is electrically driven so that the other end describes a semi-circle. An additional eraser may be used pivoted at the centre of the top of the blackboard, Fig. 2 (not shown). The rod 1 may be operated by power means such as a electric motor 3.
Patent GB-704527-A (GB)
Title: Improvements relating to water-closet basins
Inventor: PIMBLE ARTHUR VICTOR
IPC: E03D11/13
Filed: 1952-11-12
Abstract: 704,527. Traps. TWYFORDS, Ltd. Nov. 12, 1952, No. 28477/52. Class 33 The down leg 5 of the discharge trap of a water-closet basin has a spiral interior surface 7, which gives a helical motion to the water passing therethrough and produces a suction effect, and in the case of a syphonic trap facilitates the initiation of syphonic action. The down leg 5 may be at the front or rear of the basin and may have a plain cylindrical exterior surface.
Patent GB-656781-A (GB)
Title: Improvements in article dispensing systems
IPC: B65G47/76
Filed: 1947-10-24
Abstract: 656,781. Endless conveyers. COMMUNICATION ENGINEERING PTY., Ltd. Oct. 24, 1947, No. 28495. Convention date, Nov. 8, 1946. [Class 78 (i)] [Also in Group XVIII] In a system for dispensing articles from storage, some or all of which are suitable for cooking (see Group XVIII), routing means comprise a conveyer belt 4 and driving means 5 which are reversible to reverse the direction of movement of the belt 4 to convey released articles, deposited on it from shoots 3, either to a cooking section 8 or directly to a delivery counter 6. The means 5 may be an electric motor, with two field windings in opposite directions, controlled by keys 13 from an operator's position 12. The cooking section comprises cooking units 19, each including a movable grate 21 which conveys the articles to appropriate heating elements and passes them to a common conveyer belt 9 after a predetermined time interval. The articles are routed from the belt 4 by diverters 1DV, 2DV into shoots 18a, 18b which carry them to the grates. The diverters are opened by solenoids 1D, 2D and closed by springs 1S, 2S, an open diverter being disposed as 2DV in Fig. 2, and diverting articles travelling on the belt in the direction of the arrow into the shoot 18b. A grate consists of a band of wire meshing or of a series of ceramic links and passes over a driving pulley equipped with small teeth which enter the openings of the mesh. The driving means for the grates 21 are switched on by the articles themselves when released into the shoots 3 and are switched off by timing devices 29. The cooked articles are routed to the belt 9 through shoots 30 and a collecting device 31, the latter comprising a holder 47, Fig. 4a, in which plates, e.g. of cardboard, are stacked and means whereby the lowest plate is pulled down by a suction pad 53 which is timed to rise and fall every time an article arrives at the end of the cooking unit and which releases the plate so that it rests on a surface adjacent the belt 9. At the same time bars 43 each side of the belt rise and lift off the cooked article and a slide 59 advances and pushes the plate underneath it. The belt 9 conveys the cooked articles on the plates to a delivery counter 11. Specification 656,827, [Group XVIII], is referred to.
Patent GB-655819-A (GB)
Title: Improvements relating to amplifying channels for electric signals
Inventor: WHITE ERIC LAWRENCE CASLING
IPC: H04N5/18
Filed: 1948-11-03
Abstract: 655,819. Valve-amplifying circuits. ELECTRIC & MUSICAL INSTRUMENTS, Ltd. Nov. 3, 1948, No. 28507. [Class 40 (vi)] [Also in Group XL (b)] A D.C. restorer at the output of an amplifier restores the D.C. at that point and also feeds back a D.C. component to the input electrode of the amplifier in order to reduce the variation of the input voltage due to the absence of the D.C. component in the input signal. The output signal from the head amplifier of a television pick-up tube 4 which does not contain the D.C. component is fed through a capacitor 2 to the input electrode of a D.C. coupled amplifier 1. The output of this amplifier is fed through a capacitor 5 to a D.C. restorer and to the grid of a cathode follower stage, a point on the output resistor 8, 9 at which the gain of the stage is unity being connected to the input of the amplifier to provide a D.C. component of the correct sense. The capacitor 5 prevents regeneration of the D.C. component round a closed loop. The D.C. restorer may be of the conventional peak rectifier type or of the type described in Specification 512,109, in which pulses from a source 11 occurring during the black-out periods cause a switch 10 to equalize the level during this period with the potential form an adjustable source 12, 13. If the amplifier 1 reverses the phase of the signal, then amplifier 6 must also be arranged to reverse the phase.
Patent GB-1438516-A (GB)
Title: Manual drill hammer machine memory
IPC: E21B6/06
Filed: 1973-06-15
Abstract: 1438516 Hammer drill ROBERT BOSCH GmbH 15 June 1973 [16 June 1972] 28523/73 Heading B4C A hammer drill comprises a rotary electric motor driving via a crank gear 5 a reciprocating part, e.g. a piston 6, which causes reciprocation of a striker 12 driving an impact boring tool, and means for stepwise rotation of the boring tool. The piston 6 carries a sleeve 26 which at one end has a coarse thread engaged with a thread on an oscillatable sleeve 24 connected via an indexing mechanism 52 to the impact boring tool and which at its other end has axially extending splines engaged with splines on a clutch sleeve 29. The sleeve 29 is connectible to a clutch ring 31, fixed to the drill housing, by means of an adjustable spring. In operation the piston 6 is reciprocated by the gear 5 from the electric motor and the striker 12 is reciprocated as its piston head 13 traps air cushions within the pison 6. The end 14 of the striker co-operates with the end 60 of a tool carrier 19 to impart blows to a tool carried thereby. Axial movement of the carrier 19 is limited by engagement of an elastic ring 64 in an annular recess 63 of the carrier. The carrier 19 has external axial grooves receiving internal ridges of a sleeve 22 so that the carrier and sleeve rotate together. The sleeve 22 is connected via a one-way indexing mechanism 52 with the sleeve 24 so that as the sleeve 26 is advanced by the piston 6 the co-operating threads on the sleeves 26 and 24 cause the latter to rotate and thus rotate the sleeve 22 and carrier 19 one step. Rotation of the sleeve 26 is prevented by the interengagement of axial teeth on the sleeve a 26 and the clutch sleeve 29 and interengagement of dogs 30 on the sleeve 29 with the fixed ring 31. If torque builds up due to jamming of the tool the clutch releases and the rotary drive is thus discontinued. The torque at which the clutch releases is normally determined by the force of an adjustable spring 34, however the releasing torque can be controlled by rotation of a handle 42 which causes an eccentrically mounted pin 39 to engage the clutch sleeve 29 and thus increase the releasing torque. Rotation of the handle 42 in the opposite direction moves the pin 39 against the spring 34 to render it inoperative, thus enabling the drill to be used for percussive action only.
Patent GB-1499050-A (GB)
Title: Well safety valve
IPC: E21B34/00
Filed: 1976-07-08
Abstract: 1499050 Wells &c. CAMCO INC 8 July 1976 [14 Nov 1975] 28531/76 Heading E1F A well safety valve 10, of the type in which a valve closure member 20 is moved between open and closed positions by longitudinal movement of a tubular member 22, includes a fail-safe releasing mechanism for avoiding damage to the valve in the event that its is actuated by excessive forces. As described the valve closure member is a flapper valve 20 and the tubular member 22 is biased upwardly by spring 34 to maintain the valve 20 in a closed position as shown in Fig. 1B. The tubularmember 22 is moved downwardly to open the valve 20 by fluid under pressure supplied through line 50 acting on a piston 40 formed on the tubular member 22. The tubular member 22 includes upper and lower telescoping sections 52, 54 which are releasably secured together by projections 53 on a collet fixed to the upper section 52 engaging one of a series of recesses 55-59 formed on the lower section 54. The collet is constructed to release upon the application of a predetermined force less than a force sufficient to cause damage to the valve. Thus if an excessive actuating force is used the collet releases and the two sections 52, 54 telescope into one another, the valve 20 remaining closed. The valve 20 can then be opened, and the collet re-set, by using a tool (not shown), such as a wireline tool, which engages one or both recesses 58, 60 (Fig. 4) in the lower section 54 and moves it downwardly to open the valve 20. The tubular member 22 also includes a third section 70 which is arranged above the lower section 54 and is held in place by a shear pin 72. If it is desired to permanently lock the valve 20 in its open position another tool (not shown) is engaged with a recess 78 (Fig. 4) in the section 70 and is then moved downwardly, shearing pin 72. Further downward movement of section 70 forces the lower section 54 downwardly to open the valve 20 as shown in Fig. 4, the section 70 being prevented from moving upwardly by interengaging teeth 74, 76.
Patent GB-894041-A (GB)
Title: Meat wrapper containing antibiotic
Inventor: HARTSHORNE EDWARD
IPC: B65D81/28
Filed: 1959-08-20
Abstract: Antibiotic impregnated cloth and other sheet materials are prepared by impregnating the materials with a solution of an antibiotic in an aqueous solution of a polyhydric alcohol softener containing 2-6 carbon atoms, e.g. glycerol, propylene glycol, triethylene glycol, butylene glycol, mannitol, sorbitol or pentaerythritol.  The impregnated sheet contains 5-25 mg. of antibiotic per sq. cm. of surface area and preferably incorporates, by weight, 5%-10% of water and 8%-25% of polyhydric alcohol softener.  Suitable antibiotics are of the broad spectrum type, e.g. tetracyline and its derivatives, or polymixin B.ALSO:Antibiotic-impregnated preservative sheet wrapping material is produced by using an impregnating solution for the sheet material in which the antibiotic is dissolved in an aqueous solution of a polyhydric alcohol softener containing 2 to 6 carbon atoms, e.g. glycerol, propylene glycol, triethylene glycol, butylene glycol, mannitol, sorbitol, pentaerythritol, The impregnated sheet contains 5 to 25 mg. antibiotic per square centimetre of surface area and preferably incorporates, by weight, 5 to 10% of water and 8 to 25% of polyhydric alcohol softener.  Suitable antibiotics are of the broad spectrum type, e.g. tetracycline and its derivatives, polymixin B.
Patent GB-276612-A (GB)
Title: Improved process of and apparatus for the cooling of piston compressors
IPC: F04B25/00
Filed: 1926-11-12
Abstract: 276,612. Soc. Technique d'Etudes et d'Entreprises pour l'Industrie, and Huguenin, A. Aug. 30, 1926, [Convention date]. Addition to 260,984. Heat of compression, absorbing; valves, arrangement and actuation of.- In a compressor with one or more intercoolers r, w, the ends of the cylinders a, b are provided with the usual inlet valves c - - f and with special discharge valves g, h, i, k associated with sleeve valves l - - o which control the discharge of the compressed gas through pipes q, v to the intercoolers, and the re-admission of part of the cooled gas from the intercoolers through pipes u, z to the cylinders while the valves g, h, i k are still open. The valves g, h, ik , and l - - o may be operated by two sets of electromagnetic coils p<1>, q<1>, s<1>, t<1> acting on magnetic portions d' of the valves, and supplied with intermittent current by a dynamo C and a switch operated by two sets of eccentrics I. The valves are counterbalanced by springs g<1>, m<1>, and have dash-pot controls, and their movements may he regulated by adjusting the eccentric rods actuating the switch.
Patent GB-658485-A (GB)
Title: Improvements in and relating to electrolytic processing masks
IPC: C25D17/06
Filed: 1949-11-08
Abstract: 658,485. Masks for electrolytic processes. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 8, 1949, No. 28602. Convention date, Nov. 12, 1948. [Class 41] A mask for electrolytic processing of substantially flat metallic plates comprises a peripheral frame 1 having a recessed opening therein which is undercut so that the frame partially overhangs the opening, means being provided for mounting an electrode plate 5 within the opening so that electrolytic action is retarded in a peripheral region of the plate. As shown, the frame 1 is U-shaped, and is formed of insulating material, for example, hardened rubber, and the sides of the frame are provided with mortises to receive tenons 9a formed on a detachable transverse member 9, held in position by rubber pins 10. The sides 2, 3 and end of the frame 1 are slotted to accommodate the electrode 5, and the side and end frame members 2, 3, 4 and 9 are undercut on both sides around the periphery of the opening, so that in electrolytic processing the electrolytic action is retarded at the peripheral region of the electrode plate. The member 4 is recessed to accommodate a cup 7 connecting the electrode to a mounting stud 8. The mask may be used in the production of copper oxide rectifier plates.
Patent GB-1246743-A (GB)
Title: Electronic control system
IPC: G01B7/008
Filed: 1969-06-06
Abstract: 1, 246, 743. Electric correspondence control. FORD MOTOR CO. Ltd. June 6, 1969 [July 16, 19681, No.28661/69. Heading G1N. A system for controlling displacement of a probe 28 engaging the surface of a clay model 20 comprises three servomotors 34, 38, 44, to drive the probe along X, Y, Z co-ordinate axes, an operator in use controlling probe displacement along any two of the three axes whilst displacement along the third is controlled by signals from a differential transformer (186) Fig. 11 (not shown) carried by the probe. The servo control loops for each axis are as shown in Fig. 14 and include coarse and fine controls, the former utilizing velocity damping from a tachogenerator 210 and the latter position error control with synchros 214, 216. The probe is as described in Specification 1,178,817 (Division G1). Voltages representing co-ordinates of displacement are fed from position digitizors 36, 40, 48 for use in preparing control tapes.
Patent GB-1316583-A (GB)
Title: Construction of strip material
IPC: G03C3/00
Filed: 1970-06-15
Abstract: 1316583 Winding webs EASTMAN KODAK CO 15 June 1970 [13 June 1969] 28786/70 Heading B8R [Also in Divisions B6 and G2] In the winding of strip material, e.g. an inking ribbon or a photographic film, on to a core, the effect of a raised or crown portion is achieved upon a conventional take-up core without the necessity of modifying the core itself. Thus a strip 10 has attached to its ends, by means of clips 24, 25, by stitching, or by adhesive, auxiliary strips 22 having a length A greater than the circumference of the core on which the strip is to be wound and being shaped, e.g. in the triangular configuration shown, such that a central circumferential crown is formed when the strip 10 and an axuiliary strip 22 are wound together on to the core (Figs. 1, 3 and 4, not shown). The clip 24 or 25 may be adapted for insertion into a slot in the core to act as an anchor for the strip (Figs. 3 and 5, not shown). Other suitable configurations for the auxiliary strips are described with reference to Figs. 6 to 9 (not shown).
Patent GB-192467-A (GB)
Title: Improvements in coin-freed apparatus
IPC: G07F9/02
Filed: 1921-10-31
Abstract: 192,467. Fessers, H. J. G., Pessers, R. H. J., and Brinkworth, A. B. Oct. 31, 1921. No Patent granted (Sealing fee not paid). Coin action, mechanical-connection and multiple-coin. - In apparatus such as goods delivery, music playing, model working, picture exhibiting, game apparatus &c. in which a handoperated slide is released by a coin and as applied to goods delivery apparatus, the slide 1, Fig. 1, working in guides 8 on a plate 4 is held by a spring-controlled and counterweighted lever 20 which is inclined up to the front of the apparatus and has a catch 24 coming in front of a stop 25 depending from a lever slide 10 secured to the slide 1. The slide as shown in Fig. 3 may be locked by three levers requiring the insertion of three releasing coins. A coin inserted in slots 2 in the slide and plate 4 rests on the lever 20 between plates 6, 7 depending from the slide 10. When the slide is pulled, the upper edge of the coin slides along the plate 4 and its lower edge along a tapering slot 39, Fig. 3, in the lever 20, thus depressing the lever and freeing the catch 24 from the stop 25. The coin is discharged through a wide slot 29 and the front end of the lever rests against the bottom of the stop until the slide is returned. A pawl 32 in conjunction with a rack 31 on the slide ensures a full stroke in both directions. Fraud, preventing.-A ledge 26 carried by the plate 6 engages under the back edge 27 of the tapering slot and prevents the lever from being depressed by a strip or wire inserted through the coin slot 2. Delivery of articles stored in piles.-The slide has two transverse projections 13, 14 between which the bottom article of at pile 15 rests. During delivery the remaining articles are retained, in order to decrease the depth of the apparatus, by a collapsable, flexible or foldable extension of the slide. This may be a series of linked laths 40, Fig. 1, on the roller top desk principle or a, pair of lazy-tongs 41, 42 as shown in Fig. 3.
Patent GB-263725-A (GB)
Title: Improvements in and relating to rim removing tools
IPC: B60C25/14
Filed: 1926-11-16
Abstract: 263,725. Morgan, P. V. Nov. 16, 1926. Tyres, elastic, tools for removing.-A tool particularly for contracting rims of automobile wheels to remove them from their tyres comprises a pair of parallel spaced members 5, 6 carrying rim clamps 8, 9, a handle 22 pivoted to each member 5 carrying other rim clamps 26, 27, and a spacer-bar 14 with a movable cam 18 be tween the members. In operation, the rim is gripped on each side of its abutting ends 32 by screwing together the clamps 8, 9, and 26, 27, the cam 18 is turned to bear against the under side of the rim and the handles 23 are pressed down to break the joint and then rotated further round, as in Fig. 3, to contract the rim. In replacing the rim, if the ends do not align, hooks 16, 17 are engaged with the rim when the ends can be forced together by upward pull on the handles. If the rim ends are twisted, the handles 22, 23 can be used semi-independently to counteract the twist.
Patent GB-891769-A (GB)
Title: Carboxymethyl dextran-iron complexes
Inventor: NOVAK LEO J
IPC: C08B37/02
Filed: 1958-09-10
Abstract: The invention comprises a complex of iron with a carboxymethyl ether of inherently water-dispersible dextran containing, per anhydroglucose unit, an average of about 1,0 to 3,0 carboxymethyl groups.  The complexes may contain ferrous or ferric iron.  The novel complexes may be made by adding an aqueous solution of a water-soluble iron salt to an aqueous solution of a carboxymethyl ether of inherently water-dispersible dextran containing an average of 1,0 to 3,0 carboxymethyl groups per anhydroglucose unit, holding the mixture at acid pH until the complex is formed, adding aqueous alkali to the mixture to adjust the pH thereof to a value at which the complex formed is stable, and precipitating and separating the complex.  The ferrous complex may be formed using ferrous ammonium sulphate or ferrous chloride and is precipitated by adjusting the pH to between 6,2 and 10,2 by adding aqueous alkali such as aqueous sodium hydroxide solution, and adding the water-miscible non-solvent, such as isopropanol.  When ferric chloride is used to form the ferric complex, the addition of sodium hydroxide solution to raise the pH to 1,3-1,4 results in a heavy precipitate of the ferric complex.
Patent GB-746018-A (GB)
Title: Improvements relating to flexible electric heating cables
IPC: H05B3/56
Filed: 1954-10-08
Abstract: 746,018. Cables. GENERAL ELECTRIC CO. Oct. 8, 1954 [Oct. 8, 1953], No. 29082/54. Class 36. [Also in Group XI] A flexible cable incorporating an arrangement responsive to the temperature of an electric heater wire therein comprises a flexible insulating core 1 which may be of glass fibres, a helically applied heater wire 2, at least one signal wire 3 separated from the heater wire by a helically-applied thread or tape 5 of an organic insulating material, such as nylon, which becomes conductive when heated, and an outer insulating covering 4. In an alternative arrangement the wires 2, 3 may be wound sideby-side on the core 1, being separated by an insulating thread. The thread or tape 5 is then applied thereover with the opposite lay. Specification 696,369 is referred to.