baber/WOPTO huggingface dataset:
Patent GB-441936-A (GB)
Title: Mouth-gag for dog and cat
IPC: A61D15/00
Filed: 1934-08-01
Abstract: 441,936. Gags. MITCHELL, G. D., 971, Sauchiehall Street, Glasgow. Aug. 1, 1934, No. 22390. [Class 81 (ii)] A gag for a dog or cat comprises a pair of coil springs A of steel wire having extended arms B, C, inturned and twisted together at their free ends to form mouth engaging members D. The arms are held in open position by pairs of conical washers E housed within the coils and pressed together by wing-nuts F on central screw bolts G. In modifications, each side of the gag comprises a flat steel strip bent into part-circular form to form a spring and having extending arms doubled back on themselves to hold cross pieces forming the mouth-engaging members. Each pair of arms is held open by a pair of plates having forked ends engaging the doubled back arms, and integral with thin metal washers pivotally connected at the centre of the spring. The washers have roughened surfaces, an interposed washer of leather or soft metal such as copper, and superimposed heavy washers having squared holes engaged by the pivot bolt of square section. The washers are pressed together by a wing nut on the bolt. Alternatively a pivoted strut on one arm engaging a toothed rack on the other may be provided.
Patent GB-312858-A (GB)
Title: Improvements in or relating to friction buffers for railway vehicles
IPC: B61G11/14
Filed: 1928-08-02
Abstract: 312,858. Kombrink, O. Aug. 2, 1928. Buffers. - In a railway vehicle buffer of the kind in which a spring and a friction or wedge action device are arranged in the buffer casing a the spring e is interposed directly or indirectly between the buffer head d and the vehicle frame b so as to be entirely independent of the friction device k, l. In the construction shown the spring e abuts at its inner end against a back-plate h, while the friction device comprises a slightly tapered split spring ring k coacting with an in. ternal tapering surface l at the inner end of the buffer plunger c. The movement of the buffer casing is limited by a ring m adapted to abut against shoulders q, s formed on the outside of the plunger c.
Patent GB-1456756-A (GB)
Title: Feed rate changing device in grinding apparatus
IPC: B24B49/00
Filed: 1974-05-20
Abstract: 1456756 Grinding TOYODA-KOKI KK [24 May 1973] 22446/74 Heading B3D [Also in Division G3] In a grinding machine, the feedrate of wheel G towards workpiece W is changed upon alteration of the input potential to amplifier 27 which occurs when contact is made between workpiece W and a conductive coolant fluid, supplied via nozzle 20 coupled to the amplifier, and wetting the wheel. The source of potential may be D.C. 25 or A.C., (251), Figs. 3, 6, 7 (not shown), in which case the circuit includes capacitative coupling between the wetted wheel and an electrode (250, Fig. 3), (450, Fig. 7) encompassing the periphery of the wheel, or on one or both sides of it, or a pair of electrodes (250, 360, Fig. 6) sandwiching, or both on one side of, the grinding location. The output of amplifier 27 rectified if necessary by rectifier (252) passes to comparators 29, 28 receiving preset values from units 31, 30, the comparator outputs controlling a relay circuit 40 to, respectively, enable the instigation of rapid feed towards the workpiece, only provided that no short circuit via excess fluid between the insulating wheel mounting and the machine body exists, detected by an excess of the amplifier output voltage over the setting of unit 31, and to control the change from rapid to grinding feed rate when, at a predetermined separation of the wheel periphery and the workpiece, the amplifier output is reduced to a level corresponding to the setting of unit 30, the grinding feed being retained until desired workpiece size is reached. During the use of grinding feedrate, valve 10 is operated to provide extra coolant via nozzle 8. The fluid supply to nozzle 20, which may encompass the sides and periphery of the wheel, see Fig. 5 (not shown) may be atomized with air, by unit (253, Fig. 6). The nozzle 20 may be below the grinding location, (Fig. 7). The relay circuit controls magnetic changover valves 14, 15 controlling direction and rate of a fluid supply to an hydraulic feed 11, 13. The wheel may be insulating {vitrified}, or, if conducting, is insulated from shaft 5 by insulating member 24. A baffle (400, Fig. 7) prevents the fluid from nozzle (20) from scattering over the wheel front. Safety device.-Should the wheel motor drive current as detected by transformer 35 exceed a value set in unit 38, relay circuit 40 operates to rapidly retract the wheel.
Patent GB-822618-A (GB)
Title: New alkyl-aminoalkyl-phenothiazines and pharmaceutical preparations containing them
IPC: A61K31/00
Filed: 1956-07-19
Abstract: The invention comprises phenthiazine compounds of the formula <FORM:0822618/IV (a)/1> where R is hydrogen or chlorine and acid addition salts thereof. The compounds are prepared by (1) introducing a cyclopentylmethyl-aminopropyl group into the corresponding phenthiazine, for example by means of a reactive ester of g -(cyclopentyl-methyl-amino)-propanol such as halide or p-toluene sulphonate, preferably in the presence of an acid-binding condensing agent and/or a solvent; (2) treating a 10-propyl-phenthiazine containing in the g -position of the propyl group a substituent convertible to an N-cyclopentyl-methylamino group, to effect the said conversion, for example by treating a reactive ester of a 10-g -hydroxypropyl-phenthiazine such as a halide or p-toluene-sulphonate with cyclopentyl-methylamine preferably in the presence of an acid-binding condensing agent and/or a solvent; and (3) by reacting a 10-(g -amino-propyl)-phenthiazine with cyclopentanone, reducing the resulting Schiffs base, for example by hydrogenation in the presence of Raney nickel, and methylating the resulting secondary amine, or conversely introducing a cyclopentyl radical into a 10-(g -methylaminopropyl)-phenthiazine obtained in an analogous manner. The compounds and their salts such as the hydrohalides, sulphates, nitrates, phosphates, thiocyanates, propionates, oxalates, malonates, succinates, malates, methane sulphonates, ethane sulphonates, benzene sulphonates and toluene sulphonates are used as therapeutic agents. Examples describe the preparation of 10 - [g  - (N - cyclopentyl - N - methylamino)-propyl] - 3 - chlorophenthiazine and 10 - [g -(N - cyclopentyl - N - methylamino) - propyl]-phenthiazine and acid addition salts thereof.  10 - [g  - (N - Cyclopenty) - aminopropyl]-phenthiazine and the corresponding 3-chloro-compound are made by catalytic hydrogenation of a mixture of cyclopentanone and 10-(g -aminopropyl)-phenthiazine or its 3-chloro-derivative respectively.ALSO:Pharmaceutical preparations having inhibitory effects on the central nervous system comprise phenothiazines of the formula <FORM:0822618/VI/1> and acid addition salts thereof, where R is hydrogen or chlorine (see Group IV (b)) in admixture with a pharmaceutical carrier suitable for enteral, parenteral or topical administration.
Patent GB-1216672-A (GB)
Title: Polyurethane pressure-sensitive adhesives
Inventor: GRINDLEY JOHN VICTOR
IPC: C09J175/08
Filed: 1967-05-16
Abstract: 1,216,672. Pressure-sensitive adhesive coatings. DUNLOP CO. Ltd. 14 May, 1968 [16 May, 1967], No. 22623/67. Addition to 1,113,925. Heading B2E. [Also in Division C3] A pressure-sensitive adhesive composition which may be applied to a substrate such as paper or cloth fabric or a thin plastic sheet comprises the reaction product of one or more polyols having at least three hydroxyl groups per molecule with or without one or more diols and/or one or more mono-ols, and an organic polyisocyanate. The reaction product having an average chain length (which is defined in the Specification) of greater than 285 chain-atoms. An accelerator and/or an antioxidant may be added to the reaction mixture prior to curing. In an Example, stoichiometric amounts of a triol of M.W. 8000 prepared by reacting glycerol and propylene oxide and a propylene oxide based polyether extended tolylene diisocyanate were reacting together using dibutyl tin-dilaurate as accelerator, to produce a pressure-sensitive adhesive.
Patent GB-1217763-A (GB)
Title: Gas turbine jet propulsion engine for aircraft
Inventor: COPLIN JOHN FREDERICK
IPC: B64C9/38
Filed: 1968-05-13
Abstract: 1,217,763. Thrust reversal. ROLLS-ROYCE Ltd. 6 May, 1969 [13 May, 1968], No. 22626/68. Heading B7G. A gas turbine engine 10 has control means 24, 26 situated in its exhaust duct 15 which may independently open or close a pair of oppositely located apertures 17, 18 to allow exhaust gases to pass through in a direction transverse to the duct axis when a forward propulsion jet nozzle 16 at the rear is closed by control means 28, the apertures 17, 18 being completed unobstructed in their fully open position. More than one pair of apertures 17, 18 may be provided. This arrangement may be used for pitch control or thrust spoiling.
Patent GB-1139683-A (GB)
Title: Production of guttering by cutting tubes of thermoplastic material
Inventor: PERCIVAL ERIC ROBERT
IPC: B26D3/00
Filed: 1965-05-28
Abstract: 1,139,683. Sawing. CELANESE BUILDING COMPONENTS Ltd. 27 May, 1966 [28 May, 1965], No. 22852/65. Heading B5L. Apparatus for producing guttering from extruded thermoplastic tube comprises cutting means 2 for cutting the tube longitudinally into two halves forming gutter sections, a separator 11 positioned adjacent the cutting means and in the plane of the cutting means so as to lie between and hold apart the cut edges of the sections, clamping means including a member (20) to lie between the sections for clamping them together so that their cut edges grip the member between them and do not overlap, and means to allow relative movement between the clamping means and cutting means. The cutting means may consist of a pair of circular saw blades 2 driven by motors 3 adjustable along a guide 4 on a carriage 7 by a screw 6, the carriage 7 being vertically adjustable along pillars 9 upstanding from a base 8 by a screw 10. The blades are disposed diametrically opposed of a guide sleeve 1 which is secured to the carriage and is formed with slots 5 through which the blades extend. Separator plates 11 are pivotably mounted on the sleeve to engage the slots cut into the tube by the blades, and the sleeve is formed with further slots 12 permitting the escape of swarf. The tubing is supplied from an extruder and is passed through cooling and annealing baths, a haul-off device, and an embossing device having heated rolls to the cutting apparatus, and from the latter to a transverse cutting device having a longitudinally movable carriage carrying the clamping means 13, saw 14 and a guide 15. The clamp comprises a block (17) formed with a recess (19) for the lower gutter sections and a plate (20) on pins (21) urged upwardly by springs (not shown). An upper clamping member (23) is disposed above the plate (20) and, when lowered, clamps the upper gutter section to the plate, which, in turn, clamps the lower gutter section in the recess (19) so that the carriage moves with the extruder and cut gutter sections which are cut to length by the saw blade (14). The severed sections of the guttering are supported in the guide (15) which has projections (24) for engaging between the gutter sections.
Patent GB-847237-A (GB)
Title: Machine for manufacturing foundry cores and moulds
Inventor: BERRY JOHN DENNIS
IPC: B22C15/24
Filed: 1956-07-25
Abstract: 847,237. Moulding-machines. BIRMIDAL DEVELOPMENTS Ltd. Oct. 25, 1957 [July 25, 1956; Sept. 14, 1956], Nos. 22956/56 and 28109/56. Class 83 (1). A moulding-machine comprises a vertically - movable blowing - head above a fixed framework supporting a mould or core-box, said framework including means for effecting horizontal opening movement of the box, a finished - mould or core stripped from the box upon opening movement thereof being removed from the machine through an opening in the bottom of the framework. The blowhead-assembly 13 is vertically movable by a cylinder 26. Sand is fed from a hopper 25 to the blowhead 16 through a valve 20, Fig. 3, which is operated by a cylinder 23. The core-box 34, 35, is opened and closed by a double-acting piston as described in Specification 819,475, which is referred to, and the finished cores are removed therefrom by collecting means 14 comprising a cradle 36 vertically movable by a cylinder 40. A shoot 42 picks the core trom the cradle during its downward movement, and transfers it to conveying means 15. The operation of the controls for raising and lowering the blowhead-assembly, blowing, &c. may be performed by hand. Alternatively the operations may be performed automatically in a repeated or single-cycle operation, the control system incorporating timers so that when, e.g. shell-moulds are being made, the time the box remains closed, and therefore the curing time, may be predetermined. Specification 826,663 also is referred to.
Patent GB-1040123-A (GB)
Title: Change-over gear
IPC: F16H3/14
Filed: 1964-06-03
Abstract: 1,040,123. Reverse gear. H. SPEISER, [trading as W. SPEISER]. June 3, 1964 [June 19, 1963], No. 22962/64. Heading F2D. A reverse gear for a chaff-cutting machine in which reverse is momentarily engaged to remove blockages has reverse automatically disengaged a short interval after it has been engaged. The gear comprises bevel wheels selectively clutchable to an input shaft 3 and meshing opposite sides of an output bevel wheel 7. The clutch has a double-dog clutch sleeve slid axially of the input shaft 3 by a roller 10 which engages a groove of the sleeve and which is carried on an arm of a shift-shaft 9 which is rotatable to engage forward or reverse gear by a handle 12. A lever 11 fast with the shift-shaft 9 has a lever 25 of a toggle pair 25, 26 pivoted thereto, the lever 26 being pivoted to the casing, and the common pivot 27 of the levers extending, when reverse is engaged, into the path of a swell of a cam 28 which is rotated through chain and sprocket gearing from the input shaft 3. Cam 28 shifts the shaft 9 to its neutral position defined by a spring-pressed bolt 16 which is carried by a lever 15 and which engages a depression 18 of the lever 11. The handle 12 is freely mounted on the shift-shaft 9 and is operatively connected thereto by a spring-pressed bolt 13 having a shoulder part engaging a depression 14 in the lever 11, so that the handle is connected to the lever 11 in the forward and neutral positions of the gear. When the handle is moved towards its reverse position the bolt 13 is initially engaged in the depression 14 and the shift-shaft 9 is rotated. After a predetermined movement an oblique surface 20 of the lever 11 is engaged by the spring-pressed bolt 16 and the lever 11 is shifted to the reverse position by the spring. At the same time a transverse projection 31 of the bolt 13 engages a cam surface 30 which raises the bolt out of engagement with the depression 14 so that the handle is disconnected from the shift-shaft. The gear is thus put into neutral by the cam 28 irrespective of whether the handle is held in the reverse position or is released.
Patent GB-1335903-A (GB)
Title: Recording appliances
IPC: G11B27/029
Filed: 1971-04-19
Abstract: 1335903 Editing recordings WOLFGANG ASSMANN GmbH 19 April 1971 [6 March 1970] 23014/71 Heading G5R A switching system prevents inadvertent erasure of a wanted section of a record when an unwanted section is being erased/corrected by switching off the drive to the record at the precise moment the unwanted section ends. In the arrangement of Fig. 1, a passage on a magnetic disc (not shown) on a turntable 2 is corrected by first locating the end of the passage, and then withdrawing a stop 4. The disc is then rotated for up to one turn in the reverse sense, and an arm 1, which is normally held fast against a switch 3, is free to move with the turntable and disc in the reverse direction, the arm releasing and hence operating switch 3 at the start of this movement. When, however, the disc and arm rotate in the forward sense for the erasure/ correction, the arm 1 operates switch 3 to terminate record drive at the moment the original position is reached. In a further embodiment (Figs. 2-4, not shown) allowing correction of passages corresponding to more than one rotation of the turntable, an arm (11) is made to follow a spiral groove (13) and so move radially relative to a plate (5) before it operates a switch (14). The switching system may also be coupled to a suitable rotary element in a tape/sheet record drive.
Patent GB-356892-A (GB)
Title: Improvements in gas heating systems
IPC: F23D14/60
Filed: 1930-07-31
Abstract: 356,892. Gas burners; pilot-jets. KEITH & BLACKMAN CO., Ltd., J. and KEITH, G., 27, Farringdon Avenue, London. July 31, 1930, No. 23073. [Classes 75 (i) and 75 (iii).] In a gas-heating system for bakers' ovens and the like, sets of burners, preferably a central burner 75 and a ring of burners 74, are surrounded by a tube 89 extending within a combustion chamber 99 connected by heat radiating tubes 101 to a header 100, leading to a fan 98 for removing the products of combustion and fitted with a valve 102 for varying the draught to regulate the flow of gas and air to the burners. The gas may be supplied mixed with insufficient air to form an explosive mixture. As shown, the burner 75 is provided with a central gas supply tube 78 in an air supply tube 77 communicating through inlets 79 with the atmosphere. The burners 74 are provided with gas supply tubes 84 extending from a chamber 72 and a common air chamber 73 communicating through tubes 83 with air inlets 81 in a rotatable cover-plate 82. The tube 78 and chamber 72 are connected respectively by pipes 61, 62 with a governor 12 loaded to atmospheric pressure, the pipes 61, 62 being provided with stop-cocks 65, 66 and obturators 67, 68. The cock 65 is connected by a link 92 to the plate 82 so that the gas and air supplies to the burners 74 may be cut off simultaneously and independently of the burner 75. The tubes 78, 84 are centred by means of perforated plates 85 and may be provided with caps 86 having inclined perforations 87. Part of the air is supplied to the flames through apertures 91 around the burners. The flame of a pilot-burner 97 is adapted to be drawn by the suction of the fan through one of the air inlets 79 for lighting the burner 75 which in turn ignites the burners 74. In a modification, the air is supplied to the burners by means of a fan, a branch pipe being connected to the governor so as to maintain the gas pressure equal to the air pressure. The governor may also be loaded to a variable subatmospheric pressure by the method described in Specification 270,786, [Class 75 (i), Burners &c.]. Specification 348,767 is also referred to in the Provisional Specification.
Patent GB-899034-A (GB)
Title: Production of benzene
Inventor: GUTHRIE JACK ARDIS
IPC: C07C5/387
Filed: 1960-07-01
Abstract: In the conversion of methylcyclopentane to benzene over a platinum-alumina-halogen catalyst with hydrogen under reforming conditions an amount of ammonia or an amine is added to provide 3-12 parts per million of ammonia based on hydrocarbon.  The process may be one of reforming a naphtha at 875 DEG F.-975 DEG F. and 200-600 p.s.i.g.  The addition of ammonia as catalyst activity declines results in maintaining the conversion to benzene. Conversions of C7 naphthenes to toluene are unaffected.
Patent GB-168890-A (GB)
Title: Improvements in or relating to folding butts for pistols and like firearms
IPC: F41C23/12
Filed: 1921-08-31
Abstract: 168,890. Benke, J. Sept. 1, 1920, [Convention date]. Stocks.-A pistol butt is provided with an extensible frame, to form a shoulder-piece, comprising two forward plates b hinged at c to side plates a on the 'butt and two rear plates d hinged at i to the forward plates and hinged together at the rear, the binges f being joined by a shoulder plate e. In the closed position, the plates nt along the two sides of the butt, holes p permitting access to the trigger as shown in Fig. 3. The plates swing outwards in moving from ons position to the other and are locked in either position by a spring catch g hinged to one of the rear plates d and engaging the other.
Patent GB-1125602-A (GB)
Title: Improvements in or relating to a method of bonding materials
Inventor: HARRIS GILBERT HENRY
IPC: E04F13/04
Filed: 1964-06-04
Abstract: 1,125,602. Moulding concrete. VULCAN PLASTICS Ltd. 3 Sept., 1965 [4 June, 1964], No. 23177/64. Heading B5A. [Also in Division E1] Plastics surfaces are bonded to settable fluid material, e.g. plastics sheeting bonded to concrete structures for decorative or protective purposes, by securing a three dimensional network, e.g. various forms of zig-zag, sinusoidal or helically interengaged wire, to the plastics surface and casting the settable fluid material within a mould or shuttering to enclose the network. The plastics surface may comprise glass reinforced polyester, acrylics, P.V.C. or polypropylene, or P.V.C. coated aluminium, and the network may be anchored into the plastics during the setting thereof or may be adhesively bonded or be fused thereto, e.g. a P.V.C. or polypropylene coated iron wire network fused to a similar plastics surface. The settable materials may also comprise plaster, polyurethane foam or vermiculite/sodium silicate mixtures.
Patent GB-765755-A (GB)
Title: Snap action electric switches
IPC: H01H61/06
Filed: 1954-08-10
Abstract: 765,755. Thermal switches. SIGNALSTAT CORPORATION. Aug. 10 1954 [Aug 18, 1953], No. 23179/54. Class 38(5) A normally open snap action electric switch comprises a snap acting vane, the action of which is controlled by an electrically conducting strip attached thereto, the arrangement being such that as the strip expands. due to the passage of an electric current therethrough causing heating of the strip the vane snaps over to close the contacts. A snap acting vane 10, the construction of which is more fully described in Specification 761,713 [Group XXXII] is deformed along a diagonal, as at 15; 15, to give the vane 10 an initial set so that it normally forms a shallow vee (V) the apex of which lies along the diagonal 11, 12. The central area of the vane is free from deformation in order that the vane may be more resistant to fatigue and thus have a longer life. An expansible conducting strip or wire 30 is secured to the ends 11, 12 of the deformation at points 31, 32 so that. in its unexpanded state the wire 30 is under tension urging the points 31, 32 towards each other, the vane being forced to assume a shallow vee (V) with its apex along the diagonal 16, 17. The free portion of the vane is provided with a contact 35 which cooperates with a contact 25 which is insulatingly mounted on a mounting member 20 to which the vane 10 is secured. Current from a battery 42 normally flows by way of the mounting member 20 into the vane 10, through both halves of the wire 30 to the centre point 36 thereof and thence through a high value resistor 40 and signal lamp SL to the other pole of the battery 42. Due to the high value of the resistor 40 the signal lamp SL does not light up; the wire 30 however begins to heat up and expand and after a predetermined expansion has occurred the vane 10 snaps over and closes the contacts 25, 35. Current now flows to the lamp by way of mounting member 20, vane 10, contacts 35, 25 and conductor 41 which path has a low resistance. The lamp SL lights up and since the wire 30 and resistor 40 are now shunted, the wire 30 cools down and contracts. At a predetermined contraction the vane snaps back to the position shown to open the contacts 25, 35; the cycle will now repeat itself.