baber/WOPTO huggingface dataset:
Patent GB-1236975-A (GB)
Title: Improvements in or relating to manually controllable power operated tools
Inventor: HALL RAYMOND JOHN
IPC: B25D9/16
Filed: 1968-07-12
Abstract: 1,236,975. Pneumatic screwdrivers. BROOM & WADE Ltd. 6 June, 1969 [12 July, 1968], No. 33282/68. Heading B3N. A manually controllable power-operated tool, such as an air-operated screwdriver, comprises a lever 23 which is pivotal between an inoperative position, in which it does not activate the tool, and an operative or at least partially operative position, in which it activates the tool, and means, comprising a member 15, for holding the lever in its operative or partially operative position, the member 15 being rotatable between a first position in which it allows the lever to pivot in either direction between its inoperative position and its operative or partially operative position, and a second position in which it precludes pivotal movement of the lever from its operative or partially operative position to its inoperative position. The member 15, which may enclose an exhaust chamber of the tool, has a portion 17 adjacent the end 18 of the lever, with a peripheral contour providing at least two points or surfaces which respectively allow and preclude pivotal movement of the lever to its inoperative position. Peripheral points or surfaces which allow the lever to occupy partially operative positions corresponding to different degrees of opening of the tool-activating valve 13 may be provided. As shown, the member 15 has a portion 17 of substantially hexagon form but having six faces 27 with a flattened edge 26 between adjacent faces 27. When an edge 26 is positioned beneath the end 18 of the lever it precludes return of the lever to its inoperative position. The tool may incorporate a reversing valve 14.
Patent GB-1281897-A (GB)
Title: Exposure control system for a camera
Inventor: MOBUSAWA TSUKUMO
IPC: G03B7/083
Filed: 1969-07-02
Abstract: 1281897 Photographic exposure control ASAHI KOGAKU KOGYO K K 2 July 1969 [3 July 1968 20 May 1969] 33389/69 Heading G2A A photographic exposure control system comprises a photo-conductor 101 connected to provide a voltage dependent upon illumination intensity; a timing capacitor 103 which is charged at a rate depending upon one or more conditions other than illumination intensity (e.g. by adjusting a resistor 114 according to film speed); and means (e.g. a switching circuit 104) for providing a shutter closing signal when the voltages across the photoconductor 101 and capacitor 103 bear a predetermined relation. An electromagnet 105 preferably actuates the shutter. For SLR cameras, the voltage across photo-conductor 101 may be stored in a memory capacitor 113 on shutter release. Figs.5, 6 (not shown) depict transistor switching circuits and include a diaphragm (216), positional in front of the photo-conductor (201) and adjusted according to film speed or camera diaphragm setting, and a resistor (214) adjusted according to film speed or diaphragm setting to control charging of the timing capacitor (203). An ammeter (not shown) may be included to indicate exposure, its scale being displaced an amount depending on film speed setting. Reference has been directed by the Comptroller to Specification 1123579.
Patent GB-486318-A (GB)
Title: Improvements in and relating to electrically heated kettles, saucepans, and other vessels
IPC: A47J27/21
Filed: 1936-12-05
Abstract: 486,318. Making hollow-ware. BATE & CO., Ltd., J., and FISHER, S. N. Dec. 5, 1936, No. 33392. [Classes 83 (ii) and 83 (iv)] [Also in Group XI] The bottom a of an aluminium vessel has a recess r containing a nut p and an aluminium disc q. The vessel bottom is spun over the nut, which is knurled or serrated on its periphery. The nut receives a stud o forming part of the clamping means for an electric heating element.
Patent GB-483165-A (GB)
Title: Improvements in and relating to devices for facilitating marking off or cutting mouldings and other articles
IPC: B25H7/00
Filed: 1936-12-05
Abstract: 483,165. Mitres. KENNIFORD, G. W. T. Dec. 5, 1936, No. 33433. [Class 97 (iii)] A device for marking articles such as mouldings with lines inclined to an edge or surface comprises a part 1 to be secured parallel to the edge or surface and a pair of arms 6, 7, pivoted to the part 1 at 4, 5, and interconnected by linkage 13 which maintains the angle between the arms 6, 7, constant throughout their range of movement. The part 1 has vertical side walls 2 and the arms 6, 7 are bifurcated so that the device may embrace the article being marked. The linkage may comprise a pair of links 13, 14 pivoted to the arms 6, 7 at 8, 10 and provided with longitudinal slots 15 engaged by pins 17, 18, on the walls 2. The pins 17 may be in the form of clamping screws and a spring catch 21 may be provided to engage a notch 23 in the link 13 when the arms 6, 7, make equal angles with the part 1.
Patent GB-1441917-A (GB)
Title: Wheel slip proteciton systems
IPC: H02J7/14
Filed: 1972-07-18
Abstract: 1441917 Anti-skid systems GIRLING Ltd 9 July 1973 [18 July 1972] 33516/72 Heading F2F [Also in Divisions G3 and H2] A self-contained anti-skid and/or anti-spin system for a vehicle, especially a rail vehicle, comprises an alternator 11, Fig. 1, driven by a wheel to be controlled and producing a rotational-speed-dependent output, a differentiating circuit 36 producing an output dependent upon the rate of change of the alternator output applied to it, control means 37 sensitive to the output of the differentiating circuit 36 and acting to reduce or remove the braking and/or driving torque applied to the wheel when the rate of change of alternator output exceeds a predetermined value, a battery 22 which provides power for circuit 36 and control means 37, and a voltage regulator 16 to 19, 21, 24, 26 to 28 through which the battery is charged by the alternator 11 in accordance with the rotational speed of the wheel (see Division H2 for battery charging). In Fig. 2 the voltage regulator for charging of battery 118 is shown at 115, and a circuit representing the control means is shown to the right of differentiating circuit 125. When a predetermined deceleration is reached, a Schmitt trigger circuit constituted by transistors 127, 129 and their associated resistors switches so that transistor 129 is off whereby transistors 137, 138 turn on and energize a winding 141. Preferably, winding 141 operates two electropneumatic valves for releasing both a disc brake and a tread brake; it may also operate a valve incorporated in wheel-sanding equipment. In a modification, not illustrated, the control circuit includes a second Schmitt trigger circuit switched when the acceleration of the wheel exceeds a value at which wheel spin is likely and serving to remove power from the wheel. However, acceleration only may be controlled.
Patent GB-1360900-A (GB)
Title: Process for manufacturing sulphur and/or sulphur dioxide from an ammonium salt of an oxygenated sulphur acid
IPC: C01B17/06
Filed: 1972-07-18
Abstract: 1360900 Ammonium salt decomposition INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 18 July 1972 [20 July 1971 20 Oct 1971] 33609/72 Heading C1A NH 3 , SO 2  and/or S are obtained by reacting an ammonium salt of a sulphur and oxygen containing acid with H 2 S and/or NH 4 S in the presence of liquid sulphur. The ammonium salt may be an aq. soln. of a sulphate, acid sulphate, thiosulphate, sulphite and/or thionate preferably having a concn. of 1-10 mol./l. The molar ratio of ammonium salt/H 2 S may be 0À2- 10. S and SO 2  are preferentially obtained using an (NH 4 ) 2 SO 4 /H 2 S molar ratio of 1 : 3 and 3 : 1 respectively. The process may be operated at a temp. of 160-440 C. and a pressure of 0À2-5 atm.
Patent GB-503906-A (GB)
Title: Improvements in and relating to cartons for containing straws and the like
IPC: B65D83/02
Filed: 1938-11-19
Abstract: 503,906. Cartons for straws &c. FARRAND, B. R. Nov. 19, 1938, No. 33702. [Classes 18 and 65] A carton for straws &c. permitting withdrawal upwards is made from the blank shown i notches 15, 16 coming together to form a single aperture large enough at its lower end to admit the fingers but not at its upper end, so that the end of the straw which enters the mouth is prevented from contamination. The ends of an elastic ring encircling the straws are looped over tongues 20, 21 and hooked over a hook 22. A transparent paper sheet 18 is secured over the finger aperture and is folded over the tops of the straws &c.
Patent GB-750936-A (GB)
Title: Improvements in internal combustion engine accessory drives
IPC: F02N3/04
Filed: 1953-12-04
Abstract: 750,936. Change-speed gear. RIEDEL, N. Dec. 4, 1953 [Dec. 5, 1952], No. 33824/53. Class 80(2) [Also in Groups XXVII and XXXV] To take account of the change in driving conditions rendered necessary by the separate functions of the starter-dynamo 4, a wheel 3 on the starterdynamo shaft 18, frictionally engaging an engine flywheel, houses a changespeed gear. A sunwheel on the starter-dynamo shaft 18 meshes with planet gears 17 on a carrier 16 that is supported on a sleeve 26 by which the carrier is mounted within the starter-dynamo cover 24 as well as on the shaft 18. A ring-gear 19 which is rotatably mounted in the carrier 16 is provided with the freewheel consisting of rollers 25 and a split ring 20 with a spring 21. The carrier 16 is also formed with radial bores in which are balls 22 that co-operate with a disc 23. In a modification the freewheel is controlled by an eccentric inertia-disc or a centrifugally-actuated weight attached to the ring gear 19, the ring 20 being dispensed with; in the former case a spring on the disc acts on the adjacent roller and an auxiliary roller which is displaceably mounted on a projection extending into the set of rollers, and co-operates with a separate recess in the interior of the ring gear 19. Operation. The ring 20 frictionally engages the sleeve 26 and the spring 21 forces the rollers 25 into recesses in the interior of the ring gear 19 so that upon clockwise rotation of the latter, i.e. during engine starting, the ring 20 displaces each roller into a wedging position between one edge of its recess and the cover 24. This reaction is also used to increase the pressure of the wheel 3 on the flywheel which pressure acts through a leverage equal to the eccentricity between the roller and the starter-dynamo. When the engine becomes self-operative and exceeds the speed of the starter the ring-gear 19 rotates counter-clockwise and the rollers are moved into the bottom of the recesses where they are clear of the cover 24. Upon the engine attaining a given speed the balls 22 are forced outward by centrifugal action and act on a conical surface of the disc 23 to press the ring-gear 19 against a spring ring 31 in the carrier and clutch the friction wheel to the starter-dynamo. A spring on the roller shaft applies a turning moment via the eccentricity of the starter-dynamo shaft to maintain sufficient pressure of the wheel 3 on the flywheel during operation of the machine as a dynamo.
Patent GB-744450-A (GB)
Title: Preparation of iron biscyclopentadienyl
IPC: C07F17/02
Filed: 1953-12-04
Abstract: Iron biscyclopentadienyl is prepared by heating an iron carbonyl (e.g. iron pentacarbonyl) with cyclopentadiene, preferably within the range 400-900 DEG  F.  In order that the reagents should be brought to the required reaction temperature as rapidly as possible to avoid undesirable side reactions, the vaporized reagents may be passed through a heated glass tube packed with glass beads, introduced under the surface of a high-boiling liquid agitated in a reactor (e.g. tricresyl phosphate, hydrocarbon oils), pumped at high velocity with turbulent flow through a heated metal tube, passed over a heated catalyst bed or mixed with a superheated inert gas such as nitrogen. In an example, air is swept by oxygen-free nitrogen from an electrically-heated vertical glass tube packed with glass beads and a liquid mixture of iron pentacarbonyl and cyclopentadiene introduced at the top of the tube.  The nitrogen current is allowed to flow during the run.  Iron bicyclopentadiene is collected in a chamber connected to the reactor.
Patent GB-389194-A (GB)
Title: Improvements relating to furnaces
IPC: C21D9/00
Filed: 1931-12-07
Abstract: 389,194. Metal - heating furnaces. INTERNATIONAL FURNACE EQUIPMENT CO., Ltd. and BAILLY, L., Clement Street, Parade, Birmingham. Dec. 7, 1931, No. 33852. [Class 51 (ii).] In a metal-heating furnace of the kind in which the hot gases enter the heating chamber a through a large number of small perforations in one or more of the side walls, the floor, or the roof, the perforations m, shown provided in the side walls h, are constituted by nozzle-like openings tapering towards the interior of the heating chamber. The furnace is fired by a gas, oil, or pulverulent fuel burner i and the hot gases pass to the spaces g with which the apertures m communicate through longitudinally spaced flues f. Secondary air may be admitted through openings k controlled by dampers l, and the waste gases escape to the stack through outlets c, d disposed at each end of the heating chamber a.
Patent GB-1116446-A (GB)
Title: Method and apparatus for editing sound films
Inventor: WILSON CHRISTOPHER DAVID
IPC: G03B31/00
Filed: 1965-08-06
Abstract: 1,116,446. Editing sound-and-cinematograph films. SOUTHERN TELEVISION Ltd. 3 Nov., 1966 [6 Aug., 1965], No. 33880/65. Heading G5R. Prior to the actual editing of a picture film having a magnetic stripe track carrying sound signals longitudinally separated (as is customary) from the relevant pictures, sound signals are derived from the track at one point and are re-recorded at another point displaced from the first point by a distance equal to the normal sound-picture separation so that each portion of sound is opposite the relevant picture; the sound signals are erased during the passage of the film between the two points referred to. In the construction shown, cine film 4, with pictures and with a magnetic stripe along one edge carrying a sound track, is driven tail first by a sprocket 13 from feed spool 2 to spool 3 past a replay head 7 which feeds a recording head 11 spaced, e.g., 28 frames (for 16 mm. film) further along the film. An erase head 9 is provided between the two and, optionally, a monitoring head 12. The film is orientated so that the magnetic stripe is below the picture frames. The film, with pictures and related sound now aligned, is then edited by cutting and joining. Finally, it is again driven from feed spool 2 to spool 3, this time head first, with magnetic stripe uppermost, and the re-recording is repeated to restore the separation, further heads 7, 9, 11, 12 vertically above those first used being employed at this stage. Sprocket 13 preferably has sprocket teeth at one end only and is reversible on its spindle but is drivingly engageable with it in each position. In another arrangement the film is not turned over for the second pass and is driven back in the same orientation from " take-up " spool 3 to " feed " spool 2; for this purpose the double units 7, 11 are each replaced by a single com. bined record/replay head, each being switched appropriately according to film direction.
Patent GB-1082404-A (GB)
Title: Improvements relating to tools for use in the manufacture of boots and shoes
IPC: A43D23/02
Filed: 1964-08-19
Abstract: 1,082,404. Boots &c. SCHON & CIE G.m.b.H. Aug. 19, 1964 [Aug. 20, 1963], No. 33956/64. Heading A3B. A pair of wiper blades 1, 2 pivoted at 3 to perform closing movements have upwardly extending portions 14, 15 which wipe the lasting margin in the waist region of the shoe. Each portion 14, 15 has a plurality of leaf springs 4 on its upper surface which adapt themselves to the contour of the shoe bottom.
Patent GB-192878-A (GB)
Title: Improvements in or relating to the construction of roads and ways
IPC: E01C3/00
Filed: 1921-12-19
Abstract: 192,878. Larranaga, P. J. M. Dec. 19, 1921. Continuous or monolithic paving and flooring. -A road or way consists of one or more layers of rigid, pressure and shock distributing elements, each capable of independent relative movement with respect to the other elements, the layers as a whole being sandwiched between courses of resilient material, such as bituminous concrete, and thereby made flexible. The elements are in the form of cement concrete slabs, unconnected or interconnected in any non-rigid manner, and may be pre-cast or formed in situ in forms left in the bottom course of rolled bituminous concrete which has a binder of softer consistency than that generally used in an exposed wearing surface. The slabs, each about six feet square and three inches deep, and spaced six inches apart, may be laid in parallel longitudinal or transverse rows or arranged to break joint, and in several layers, spaced apart, one on top of the other. A resilient wearing surface of dense bituminous concrete, sheet asphalt, wood blocks &c. is laid on the course of slabs without waiting for them to set completely, so as to interlock with the rough surface thereof. The Provisional Specification describes also a method of construction in which a dense course of crushed dry stone gravel or other mineral aggregate carefully graded with fine dry sand, and mixed with 6-12 per cent by weight of Portland cement, is laid on the surface of the bottom course of rolled bituminous concrete, aud grouted with a wet mixture of Portland cement and graded sand, except on strips about six inches wide so as to form adjoining concrete slabs about six feet square. The intervening strips between the slabs are grouted with a bituminous binder. A resilient wearing surface of dense bituminous concrete or of asphalt is then laid on the top of the slabs before giving time to set completely, so that on rolling the surfaces will interlock.
Patent GB-901160-A (GB)
Title: Improvements in or relating to centrifugal pumps
IPC: F04D7/06
Filed: 1959-10-08
Abstract: 901,160. Shaft couplings. Q.V.F. Ltd., and RICHTER, W. A. Oct. 6, 1960 [Oct. 8, 1959], No. 34196/59. Class 80 (2). [Also in Group XXVI] A centrifugal pump has a glass impeller 31 integral with a tubular glass shaft 19 drivinglyconnected to a driving-shaft 15 by a resilient ring or rings compressed between the shafts. As shown in Fig. 1, rubber O-rings 22 are spacedapart by metal sleeves 23 and are forced into contact with the shafts by screwing a collar 25 into the shaft 15. In the embodiment of Fig. 3 the end of the glass shaft is flared outwardly at 44 and a rubber-bonded asbestos ring insert 45 is compressed thereon by a clamping-member 43 which is bolted to a flange 41 on the driving- shaft. A rubber disc 21 is interposed between the flange and the end of the glass shaft.
Patent GB-1406919-A (GB)
Title: Power steering gear
IPC: B62D5/24
Filed: 1973-03-21
Abstract: 1406919 Power-assisted steering mechanism TRW Inc 21 March 1973 [20 April 1972] 34197/74 Divided out of 1406918 Heading B7H In a power steering assembly comprising a piston 14 coupled by rack and sector gears 16, 17 to a cross shaft 18, an input shaft 27 arranged to actuate a control valve 29, and a worm shaft 30 extending from the valve 29 through the piston 14, there is provided a wear take up arrangement including an adjusting stud 48 which carries a bearing ball 44 received in a recess 46 in the end of the worm shaft 30. The input shaft 27 and the worm shaft 30 are connected by a torsion bar 34, and the valve 29 includes a valve sleeve 53 formed by bonding together two sintered metal elements as described in Specification 1,406,918.
Patent GB-1184316-A (GB)
Title: Improvements in or relating to Additional Storage Units for Wall Furniture
Inventor: FIRDMANN JACQUES
IPC: A47B67/00
Filed: 1968-07-18
Abstract: 1,184,316. Cabinets. ETABS ALLIBERT. 18 July, 1968 [1 Aug., 1967], No. 34217/68. Heading A4B. A housing 2 for a nest of drawers is suspended beneath a wall mounted cabinet 5 by interengagement of channels 3 at the top of the housing's side walls and a channel 4 at the top of the front of the housing 2 with respective inturned ribs 6, 7 on the bottom of the cabinet 5.
Patent GB-209276-A (GB)
Title: Improvements in or relating to collapsible boxes or cases
IPC: B65D6/16
Filed: 1922-12-15
Abstract: 209,276. Anson, S. J., Tomkins, W. A., Simms, A. T., and Anson, W. H., (trading as Patent Collapsible Container Co.).Dec. 15, 1922. Folding boxes.-In boxes of the kind described in Specification 166,408 having the sides A hinged to one another and the .lid and bottom each in two parts C<1>, C<2> hinged to the sides, the hinges 10 are fastened by means of tongues 12 bent up out of the hinge flaps, passed through slits in the box parts and bent over. The two bottom parts are supported by a flat metal strip 15 which also serves as a reinforcing member and is pivoted to angle brackets 16 so as to swing with the sides when the box is collapsed. The lid is fastened by passing a split pin through members G attached to each part of the lid and to the ends of the box; these members together with the brackets 16 are attached by bent tongues in the same way as the hinges.
Patent GB-1161722-A (GB)
Title: Improvements in or relating to the Preparation of Enzyme Solutions
IPC: A23L13/70
Filed: 1967-07-26
Abstract: 1,161,722. Enzymes. SWIFT & CO. 26 July, 1967 [25 Aug., 1966], No. 34268/67. Heading C3H. A bromelain solution suitable for ante-mortem injection is prepared by adjusting the pH of a bromelain solution to at least 7À5, holding it at that level for at least 6 hours, and then reversibly inactivating the enzyme. Inactivation may be by H 2 0 2 -catalase treatment. The solution is preferably held at pH 8-0-8-5, at 10-20‹ C., for from 18 to 24 hours.
Patent GB-1235145-A (GB)
Title: Lubrication
Inventor: KRAFT DERALD HENRY
IPC: F16N29/00
Filed: 1968-07-18
Abstract: 1,235,145. Lubricating presses. E. W. BLISS CO. 18 July, 1968 [27 July, 1967], No. 34386/68. Heading B3H. [Also in Division F2] A lubricating system for a machine comprising an intermittently actuated distributer for supplying lubricant to the machine and control means for monitoring the operation of said intermittent distributer, said control means comprising a stop circuit, including a normally closed switch, for supplying power to said machine for normal operation thereof; means responsive to the intermittent actuation of the distributer to provide an intermittent control signal; and timing means operable by said signal, said timing means including means to open said normally closed switch if a signal is not received in a predetermined time interval to thereby stop the machine if the distributer is not actuated in said predetermined time interval. In an embodiment a timing motor 10 drives a cam 14 and actuates a switch 18 at predetermined time intervals to energize a solenoid 24. The latter opens a valve 26 to allow air to operate an air motor 32 and reciprocate a piston-rod 38 which drives a pump 40 so as to supply lubricant to parts of a machine, via a distributer 43. When lubricant is pumped to the distributer, a pin 47 is reciprocated and actuates a switch 54 to provide a control signal and indicate that the lubricant system is operating satisfactorily. The switch 54, see Fig. 2, controls the machine so that, if the lubricant supply to the distributer fails, a signal is provided to stop the machine. A motor 65, which drives the machine, is driven through an airactuated clutch 81, the control of which is by means of a solenoid 82 and an air valve 84. Timers 102, 104 are provided, one of which is always "timing out" while the other is energized, to ensure that, if the switch 54 inadvertently energizes one of the timers, the other would "time out".