baber/WOPTO huggingface dataset:
Patent GB-954406-A (GB)
Title: Braking system for vehicles
Inventor: WILSON ALEXANDER JOHN
IPC: B60T13/24
Filed: 1961-12-23
Abstract: 954,406. Braking systems; utilizing inertia to obtain movements in machinery. GIRLING Ltd. Dec. 24, 1962 [Dec. 23, 1961], No.46168/61. Headings F2E, F2F and F2X. In a booster-assisted braking system for vehicles the energization of the booster is controlled mechanically through a trigger rod 18 which is controlled by the mechanism for applying a brake manually and by means responsive to the rate of change of speed of a braked wheel whereby excessive acceleration or deceleration of the wheel renders the booster wholly or partially inoperative and skidding of the wheel is minimized. As shown, when a pedal or hand lever is operated to apply the brake through a pull-rod 10, a rocking lever 11 moves angularly about its end coupled to a pull-rod 12 actuated by the fluid pressure booster and applies a pull to a link 16 coupled to a brake cam lever 17 or other applying means. A trigger link 19 which through an abutment 22, bears against the rocking lever moves about its pivot 21 on a main lever 13 under the action of a spring 23 and actuates the trigger rod 18 to open a valve which energizes the booster. The latter then applies a pull through the rod 12 to the rocking lever 11 and through it to the main lever 13 to increase the application of the brake until angular movement of the trigger link restores the valve to its equilibrium position. The trigger link engages in a notch 24 in a bar 25 which is movable by means sensitive to the rate of change of the speed of rotation of the braked wheel. This means comprises an internally-toothed annulus 27 mounted on and rotating with the wheel, planet wheels 28 mounted on an arm 33 connected to the bar 25, and a sun wheel 29 mounted on a spindle carrying a flywheel. Excessive rates of acceleration or deceleration of the wheel move the bar 25 to the right due to the angular movement of the arm 33. The bar 25 carries the free end of the trigger link 19 with it so that operation of the rod 18 to energize the booster is prevented, or if the booster is already in operation its energization is reduced.
Patent GB-1014268-A (GB)
Title: Centrifugal separator
IPC: B07B7/08
Filed: 1964-11-17
Abstract: 1,014,268. Centrifugal separators. POLYSIUS, G.m.b.H. Nov. 17, 1964 [Dec. 5, 1963], No. 46698/64. Heading B2P. An apparatus for separating solid particles from a gas comprises a particle-collecting container 1, Fig. 1, having at its lower end a funnel into which the separated particles move down under the force of gravity and provided with a spiral or helical tube 2 which acts as a gas guide and which, on its side facing the container wall, has apertures 3 for the exit of solid particles which are separated out of the gas under centrifugal force. The particle-laden gas enters at 4 and the substantially clean gas leaves at 5. The tube may have a rectangular or semicircular cross-section and the apertures 3 may be vertical, oblique or arrow-shaped. The tube is shown with a helix of constant diameter and with a constant cross-section. In another embodiment, the cross-section of the tube reduces from the inlet to the outlet. In Fig. 4, in addition to the reduction of cross-section from the outlet 4b to the outlet 5b, the tube is in the form of a spiral with decreasing diameter from the inlet to the outlet. The apparatus may be used as a lifter for separating solids of different grain sizes in which case the solids are passed by an air stream through the tube, so that grains above a certain size are separated; the size of the grains separated may be modified by the use of secondary air which changes the flow speed of the solidsladen air-stream.
Patent GB-954407-A (GB)
Title: Nuclear fission processes and plant
IPC: G21D3/08
Filed: 1961-12-29
Abstract: 954,407. Controlling reactors. STICHTING REACTOR CENTRUM NEDERLAND. Dec. 29,1961 [Dec. 30, 1960], No. 46784/61. Heading G6C. In a nuclear fission process using a reactor fuelled with a suspension of solid fissile material in ordinary or heavy water, abnormal fluctuations in the power level are controlled by adding a water-soluble electrolyte to the suspension in such an amount that the abnormal fluctuations are reduced or eliminated. In the arrangement shown a suspension in water of uranium dioxide,consisting of spherical particles of a mean diameter of 10 microns, is continuously circulated through a reactor vessel 1 surrounded by a graphite reflector 9. A continuously operating neutron flux meter 20, preferably of the boron fluoride type, is mounted in the vicinity of the reactor vessel and its output is fed to a differential amplitude controller 21 having a low pass frequency band width limit; this eliminates signals due to "noise" fluctuations and converts signals due to abnormal fluctuations into control impulses which are fed to a servomotor 22 of a control valve 23 controlling the supply of an electrolyte solution from storage tank 24 to conduit 8 of the primary suspension circuit. The electrolyte may be sodium hydroxide or ammonium hydroxide and affects the hydrogen or deuterium in concentration.
Patent GB-1389116-A (GB)
Title: Toner level control arrangements
IPC: G03G15/11
Filed: 1972-10-11
Abstract: 1389116 Examining a sheet or curtain of  fluid RICOH KK 11 Oct 1972 [20 Oct 1971] 46808/72 Heading G1A [Also in Divisions G2 and G3 In a device for monitoring the optical density of a fluid by measuring the intensity of transmitted radiation the fluid is passed through a flexible tube 2, Fig. 3 one end 2b of which is squashed together to form a slit orifice so that a curtain 4 of fluid of uniform thickness over a predetermined area S is formed on discharge. The slit orifice can take several forms, each end of the slit may be enlarged to form two substantial square shaped or circular shaped areas, Figs. 4 & 6 respectively (not shown) the slit may be in a single plane Fig. 1 (not shown) or of arcuate form C Fig. 3 curving inwardly upstream. The internal surfaces of the tube may be electrically conductive and be coated with a water repelling substance Figs. 5 & 6 (not shown). The tube may be incorporated in an adjustable press Fig.7 (not shown) for varying the thickness of the slit, which may be controlled by a motor in response to measurements taken of the liquid concentration. In an embodiment Fig. 9 controlling the optical density of a toner solution light from a source 26 is received by a photo-resistor 24 after passing through the fluid curtain 4 and by a further photo-resistor 25. The two photo-resistors and a resistor and a variable resistor are connected into a wheatstone bridge circuit Fig.10 (not shown) the top of the variable resistor being connected to the base of a transistor. Thus, after the bridge has been balanced (and the transistor rendered non conducting), once the bridge is unbalanced the transistor becomes conducting activating a relay controlling a valve dispensing toner into the fluid until the initial optical density is reached.
Patent GB-1081550-A (GB)
Title: Vacuum circuit interrupter with condensing shield serving as one of the main contacts
IPC: H01H33/66
Filed: 1965-11-05
Abstract: 1,081,550. Vacuum switches. WESTING- HOUSE ELECTRIC CORPORATION. Nov. 5, 1965 [Nov. 16, 1964], No. 46971/65. Heading H2B. A vacuum switch is provided with a pair of arcing contacts 15, 16 and a pair of main contacts 18, 19 in parallel therewith, the main fixed contact 18 being mounted upon a metal condensing shield 20 so that in the closed position shield 20 carries the load current. The shield is adjacent to a glass envelope portion 11 and is thus able to radiate heat through it; this increases the current carrying capacity of the switch. The fixed main contact 18 is slitted to provide a number of fingers. The movable contact 19 is sealed to the envelope by bellows 32 and is attached to a U-shaped connector 22 connected to a flexible conductor 23. The movable arcing contact 16 is slidable within contact 19; is sealed thereto by bellows 37; is connected thereto by flexible conductor 46 and is biased to its closed position by a spring 16b. The legs of connector 22 are coupled to insulating links 31 which are drawn downwards to first separate main contacts 18, 19 and thereafter, when contact 19 has moved to engage a nut 42 on contact 16, to separate the arcing contacts. In a modification (Fig. 3, not shown) two sets of main contacts, one at each end of the envelope, are provided, these being connected in series by the shield 20. In an alternative arrangement (Fig. 4, not shown) only the contact 19 at one end is movable, the shield being spring-loaded to follow this contact until the contacts at the other end are separated.
Patent GB-1263130-A (GB)
Title: Magnetic recording and reproducing head
IPC: G11B5/265
Filed: 1969-09-24
Abstract: 1,263,130. Magnetic heads. INTERNATIONAL BUSINESS MACHINES CORP. 24 Sept. 1969 [16 Oct., 1968; 9 Jan., 1969], No. 47038/69. Heading G5R. A magnetic head has a record/playback gap 15 and an erase gap 20 with their longitudinal axes relatively inclined, the gap 15 falling within the confines of the gap 20. The arrangement prevents pre-echo caused by playback from the erase gap. The head is made by: (a) fixing a U-shaped ferrite or laminated alloy core 121 to a brass plate 123 and cutting a trapezoidal channel through the core and into the plate; (b) locating a centre limb 135, with a corresponding tip, in the channel, and fixing a second plate 145 over the assembly by epoxy with the interposition of spacers 141, 143, the spacer ends extending into the channel and grooves in plate 145; (c) machining the operative face after filling the voids with epoxy; and (d) assembling the structure 165 in a casing 173 containing wound bobbins 166-168 and wedging an E-shaped lamination 179 on each side to complete the magnetic circuit.
Patent GB-1016751-A (GB)
Title: Improvements in or relating to web tension control systems
Inventor: BAKER NOEL JOHN
IPC: B65H23/08
Filed: 1962-12-14
Abstract: 1,016,751. Feeding webs. WITTON-JAMES Ltd. March 9, 1964 [March 18, 1963], Nos. 47337/62 and 10598/63. Heading B6B. [Also in Division G3] Variations of tension in a web 1, e.g. of paper being fed from a reel 2 over rollers 3, 4, 5 to a printing press, cause angular movement of a pair of parallel levers 26 carrying the roller 4 and pivotally mounted at 27, such movement of the levers operating, through linkage 70, 25, 24, a lever 19 which actuates a valve 15 to vary the pressure of air supplied through a conduit 40, 16 to cylinders 12 of which pistons 10 vary the tension of braking straps 6 or adjust other forms of brake, e.g. disc brakes. A feed-back pressure is applied to the valve 15 through a conduit 38 and a fixed or variable ratio pressure relay 39 whereby a desired proportion of the output pressure of the valve 15 is employed as feed-back pressure. The levers 26, which are connected to a damper 28, are loaded by an air motor 31 of which a diaphragm is subject to pressure from a manually adjustable regulator 33. Rapid increase of web tension can be effected by operation of a solenoid valve 37 connected to a cylinder 25 and piston 36. The valve 15 comprises an inlet valve member 46, exhaust valve member 49 coacting with a seat 48 carried by the inlet valve member, a loading spring 63 adjustable by the lever 19, and a diaphragm 41 subject to the feed-back pressure in a chamber 44. A two-way valve, which may be solenoid-operated, may be interposed between the relay 39 and the feed-back part of the valve 15 whereby the relay 39 may be switched " in " or " out " to change the feed-back pressure.
Patent GB-1311447-A (GB)
Title: Apparatus for shaping filled bags into parallelopiped packages  with end flaps
IPC: B65B61/24
Filed: 1971-10-13
Abstract: 1311447 Shaping packages HABRA-WERK WILHELM F OTT 13 Oct 1971 [19 Oct 1970] 47568/71 Heading B8C Apparatus for receiving and separating cushion-shaped bags 1 having a folded edge and three welded seams, filled with flowable contents and linked end to end in a chain and for shaping the separated bags into parallelopiped bags comprises shoot means 5, 6 conveying bags downwardly past cutting means 4a, 4b adapted to sever each lowest bag, stop means 13a, 13b located in a dropping zone below the cutting means in a position to engage each falling bag at the lower corner thereof which is formed by two welded seams to cause the bag to tilt through 90 degrees and fall with the folded edge lower most, a conveyer belt 16 carrying openended compartments 15 which individually receive a falling bag, each compartment including a spring pressure plate 20 and an opposite parallel fixed wall 18 for engaging the two large flat faces of each bag, bag shaping plates 21, 22 situated laterally and above the conveyer and movable transversely and vertically respectively into engagement with the edges of a bag to shape the bag into a parallellopiped form having upper and lower laterally protruding end flaps 1h on each side, plates 24 pivotally mounted on the bag engaging faces of the shaping plates to fold over the welded seams during shaping, means 31, 32, 33 for squeezing the protruding flaps to remove any fluid therefrom and means 39, 40, 41, 42 for folding and sealing them against the side faces of the parallelopiped shaped bag. As shown, the bags drop on to the stops 13a, 13b which turn the bags through 90 degrees as they fall into respective guides 26 carried by the conveyer 16. The bags are then pushed by rams 28 into respective containers 15 also carried by the conveyer 16. A pressure-plate 23a is then operated on to the open side of the containers 15. At a further station, flaps 1h are pressed in by members 31, 32 and are then heat sealed electrically or by hot air nozzles 37. Baffles 36 maintain the parallelopiped shape of the bags.
Patent GB-1512548-A (GB)
Title: Quenching apparatus for tempering curved glass plates
IPC: C03B27/044
Filed: 1975-11-20
Abstract: 1512548 Tempering curved glass sheets ASAHI GLASS CO Ltd 20 Nov 1975 47815/75 Heading C1M An apparatus for tempering curved glass sheets 4 comprises upper and lower blowing devices which each comprise a central blowing head 7 and wing blowing heads 5, 6, the wing blowing heads being either adjustable by means of bellows 23 to accommodate sheets of differing curvatures. Each blower head is provided with blowing nozzles and auxiliary blowing nozzles may be provided between the central and wing blowing heads. The main blowing heads are preferably provided with nozzles for full surface tempering disposed at the periphery of the head and nozzles for partial tempering centrally of the peripheral nozzles. To accommodate major changes in curvature the wing blower heads may be exchanged with other heads.
Patent GB-976137-A (GB)
Title: Improvements in or relating to stand pipes for nuclear reactors
Inventor: BROMLEY DEREK
IPC: G21C15/14
Filed: 1962-12-21
Abstract: 976,137. Reactor pressure vessels. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 14, 1963 [Dec. 21, 1962], No. 48314/62. Drawings to Specification. Heading G6C. A gas cooled nuclear reactor is enclosed within a prestressed concrete pressure vessel provided with stand pipes which are cooled by external coolant carrying tubes. The latter are welded to the exterior surface of the standpipes so as to lie parallel to the standpipe axis. The standpipes and coolant tubes are dimensioned so as to lie within the spacing of the prestressing cables. Specification 897,454 is referred to.
Patent GB-1093166-A (GB)
Title: Wire mesh flooring
Inventor: BROWN ALAN MAXWELL
IPC: A01K31/00
Filed: 1965-11-15
Abstract: 1,093,166. Livestock cages. THORNBER BROS. Ltd. Nov. 14, 1966 [Nov. 16, 1965], No. 48425/65. Heading A1M. A cage, particularly for a battery system, has a wire mesh floor made up of at least two sections 1, 2 lying side by side, adjacent sides 8, 8a of the sections being provided with at least one projection 9, 10 extending beneath or over the adjacent section so as to prevent one section from sagging below its neighbouring section. As described the projections 9, 10 are provided by pegs welded or brazed to the transverse ribs 8, 8a of the sections.
Patent GB-1448639-A (GB)
Title: Bolt
IPC: E05B15/10
Filed: 1974-11-08
Abstract: 1448639 A bolt INGERSOLL LOCKS Ltd 8 Nov 1974 48542/74 Heading E2A A bolt 10 comprises a housing 11, an elongate bolt-member 13 which is mounted for axial sliding movement through the housing between a locking position and a retracted position, and retaining means 15 operable by a key 30 for retaining the bolt member in the locking position and in the retracted position. The retaining means 15 has a retaining member 23, Fig. 2, which is screwably received in a screwthreaded bore 22 formed in the bolt-member 13, has a boss-portion 25 for insertion into apertures formed in face 28 of the housing 11, and has an operating portion 26 having a non- circular cross-section for engagement in a recess 31 of the key 30. The latter is passed through a slot 29 formed in a face 28' of the housing 11 and, when the bore 22 is in alignment with an aperture 27 formed in the face 28 of the housing, the key is rotated so as to cause the boss-portion 25 of the bolt-member 13 to enter said aperture 27 and thus lock the bolt-member in the locking position. Locking of the bolt-member in its retracted position is effected by rotating the key so as to cause the boss portion to enter another aperture (not shown) formed in the face 28 of the housing. Removal of the retaining member 23 from the bore 22 is prevented by a sleeve 35, Fig. 2, and removal of the bolt-member from the housing is prevented by pins 16a, 16b. Slots 17a, 17b are provided in the housing for the respective pins. The housing is provided with screw holes 20 and access holes 19. In a modification (not shown) the slot 29 is formed in the face 18 of the housing and apertures 27 are formed in the face 18'. Mounting screws (not shown) are obscured by the bolt member 13 when the bolt is mounted for use.
Patent GB-1092759-A (GB)
Title: Mold clamping device for use in mold handling apparatus
IPC: B22C11/04
Filed: 1965-11-17
Abstract: 1,092,759. Mould clamping and handling apparatus. ALTAMIL CORPORATION. Nov. 17, 1965 [Aug. 3, 1965], No. 48852/65. Heading B3F. In mould handling and casting apparatus having a rotary table 10 indexable to a plurality of work stations, the table carries a corresponding number of mould clamping devices each of which comprises a base member 32 and a hollow upper clamping member 42. The upper member is supported on side members 36 which incorporate screw means 38, 40 to facilitate adjustment of the upper member relative to the base to accommodate moulds of various sizes. Secured to the lower surface of the upper member 42 is a diaphragm member 44 formed by an elastically bendable clamping platen 46. Attached to the periphery of the platen and for securing the platen to the upper member there is a resilient member 50 of a material such as rubber. To hold the platen against the upper member a plurality of spring biased guide pins 52, 54 are provided. To operate the clamping device air pressure is admitted into the space between the platen 46 and resilient member 50 forcing the platen downwards to grip the mould between the upper member and the base. The clamping devices are each provided means 58, 60 associated with supporting arms 28, 30 attached to the table 10 to permit turning of the clamping device and mould through approximately 90 degrees about a horizontal axis at right angles to the axis of rotation of the table. In operation, a complete mould is supplied by conveyer 18 to the apparatus at station 1 where it is clamped as previously described and hydraulic means then tilts the mould to a position required for pouring. Further hydraulic means effects indexing of the table to bring the tilted mould into station 2 for a casting operation. The table is subsequently indexed through all the stations 1 to 8 and a new mould is supplied at station 1 at each indexing movement of the table. The poured mould and casting are cooled during the indexing from station 2 to 6 and at station 7 the mould is discharged on to a conveyer 22.
Patent GB-1136656-A (GB)
Title: Process for producing organic isocyanates
IPC: C07C67/00
Filed: 1966-11-01
Abstract: 1,136,656. Isocyanates. SOC. TOULOUSAINE DE PRODUITS CHIMIQUES " TOLOCHIMIE." 1 Nov., 1966 [27 Dec., 1965; 13 April, 1966], No. 48997/66. Heading C2C. In the manufacture of organic isocyanates by continuously reacting an excess of phosgene with an amine to yield carbamyl chloride which is then converted into an isocyanate at a higher temperature, the conversion of the carbamyl chloride into isocyanate is effected under a pressure of at least 10 kg. per sq. cm. The initial conversion of the phosgene and amine into carbamyl chloride may be effected under the same pressure, which may be up to 50 kg. per sq. cm. The phosgene-amine reaction may be effected at 40-120 C., particularly 80-115 C., and the decomposition of the carbamyl chloride may be effected at 120- 180 C., particularly 130-145 C. A diluent may be present, and a number of suitable diluents are specified. Two constructions of apparatus are described, and examples are given describing the manufacture of tolylene diisocyanate, diphenylmethane 4,41-diisocyanate and phenyl isocyanate.
Patent GB-1293255-A (GB)
Title: Nitrogen-containing random copolymers
Inventor: MARZE XAVIER
IPC: D06M15/333
Filed: 1970-10-15
Abstract: 1293255 Quaternary ammonium groupcontaining polymers RHONE-POULENC SA 15 Oct 1970 [15 Oct 1969] 49046/70 Heading C3P [Also in Divisions B2 and D1] Nitrogen-containing random copolymers comprise recurring units of the formulµ and  alone, or in combination with one or more of the recurring units of the formulµ -CH 2 -CHOH- the relative proportions (i.e. numbers) of the units in the copolymer being, respectively, n and q and, if present m, p and r such that the ratio n : m+p+q+r is from 1-60, in which R is H or an aliphatic, alicyclic, aromatic or araliphatic group, A and B are different, one being H and the other a group of formula wherein Y# is an anion and each R<SP>1</SP>, which may be the same or different is a substituted or unsubstituted hydrocarbon group, A<SP>1</SP> and B<SP>1</SP> are different, one being H and the other a group of formula -CH 2 X wherein X is halogen, and x and y are positive numbers. The copolymers may be prepared by reacting an ethylene/vinyl alcohol copolymer with an epihalohydrin such as epichlorohydrin optionally in the presence of a Lewis acid such as BF 3 , SnCl 4 , AlCl 3  or TiCl 4 , and then reacting the halogen atoms with a tertiary amine such as trimethylamine. The reaction with the epihalohydrin is preferably carried out in a hydrocarbon solvent, and the reaction with the amine, in aqueous or alcoholic solution at between 15 and 90 C. The copolymers may be made in the form of membranes, either alone, or cast on to a support such as polyester fabric (see Example 13). Preferably, the polymer/epihalohydrin reaction product is formed into the desired form of membrane, and is then reacted with the tertiary amine. The membranes may be used in electrodialytic processes and also as antistatic agents and dyeability improvers for other polymers such as polypropylene (see Examples 10-12).
Patent GB-1220353-A (GB)
Title: Improvements in or relating to flail mowers and flail shaft arrangements therefor
Inventor: STEPHENSON CLIFFORD
IPC: A01D34/404
Filed: 1967-10-27
Abstract: 1,220,353. Flail mowers. A. C. BAMLETT Ltd., 28 Aug., 1968 [27 Oct., 1967], No. 49057/67. Heading A1F. In a flail mower a flail shaft 1 carries a number of flails 7 having cranked ends 8 and being freely pivotable about pins 6 which are oblique to the axis of rotation of the flail shaft 1. Thus, when a flail meets an obstruction, it pivots about pin 6 to lift clear of the obstruction, a stop 9 being provided to limit rotation of the flail. Two flail shafts may be provided which contra-rotate.