baber/WOPTO huggingface dataset:
Patent GB-1091645-A (GB)
Title: Method and apparatus for regenerating a filter cloth
IPC: B01D33/46
Filed: 1966-04-25
Abstract: 1,091,645. Rotary liquid filters; cleaning cloths. A. H. PARMENTIER. April 25, 1966 [April 28, 1965; Aug. 3, 1965; March 21, 1966], No. 17961/66. Heading B1D. In a method for regenerating the filter cloth of a rotary filter table or drum having compartments in which a negative pressure can be induced to filter and wash, successively, material deposited on the cloth and, if necessary, dry the material-liquid is sprayed from outside the compartments on to the material carried on the cloth to separate it from the cloth by a repulping operation, and the resulting pulp is afterwards evacuated by suction exerted from outside the compartments. As shown, the bulk of the layer 9 of the material is removed from cloth 5 on the perforate metal base 4 of an annular table filter by a knife 25 and a scraper conveyer 27. The residual layer 22 passes under a resilient strip 16 attached to a liquid-supply conduit 12, then under a nozzle 10 supplied by the conduit, then to a nozzle 11 up which it is withdrawn into a suction collector 13. The cloth then passes under a further resilient strip 17, and may then be dried prior to re-use.. Further pairs of cooperating nozzles, of which one pair is shown at 10', 11', may be provided. Where the solid is the required product the knife 25 and scraper 27 are used; where it is not required, they are omitted, and the whole cake is repulped. The pulp recovered from the apparatus shown may be used as, or with, washing liquid for layer 9. The aperture of each nozzle 10 or 11 may extend across the full radial width of the filter; alternatively, a series of aligned separately-controlled flat sprayers may be provided, the slots widening from the inner edge to the outer edge of the filter. The resilient strips 16 and 17 may extend upwards to the tops of the filter rims (one, 6, being down), and the volume bounded by cloth 4, rims 6 and 7, and strips 16, 17 may be closed at the top by a transparent cover. A negative pressure may be established in the resulting enclosure by a pipe penetrating the cover and connected to a suction fan. Where the apparatus is applied to an inward flow drum filter, it may be located just above the point where the drum surface re-enters the trough, and just below a nearly horizontal cake-removing knife. It extends the full axial length of the drum. Nozzle 11, which is vertically below nozzle 10, is flared so that pulp-removal is gravityassisted. A cover, and a suction-fan connection may again be provided.
Patent GB-562149-A (GB)
Title: Improvements in television pick-up tubes
IPC: H01J31/34
Filed: 1942-12-17
Abstract: 562,149. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 17, 1942, No. 17965. Convention date, Aug. 29, 1941. [Class 39 (i)] In a television pick-up tube having a mosaic target M, a source of electrons 4 and means G for forming these into a beam of low velocity electrons and means 24 and 26 for causing the beam to scan the target, further means are provided for providing an auxiliary reservoir of electrons which are under such control that they are drawn to particles of the screen which are subjected to light of abnormal intensity. They thus neutralize charged portions on the screen that the normal scanning beam cannot deal with alone. In the arrangement shown, the auxiliary supply consists of a second electron gun V which is maintained at a different potential from the main gun G so that its electrons will not reach target M unless this has an abnormal positive charge. In another construction, the auxiliary electrons are supplied by an electron-emissive ring electrode surrounding the scanning beam. This in a similar manner to the other construction is maintained at a more positive potential than the main electron supply in order that electrons therefrom only pass to portions of the screen that are abnormally positive.
Patent GB-1347524-A (GB)
Title: Pressure responsive mechanism for vehicle brakes
IPC: B60T8/26
Filed: 1971-05-28
Abstract: 1347524 Brake warning devices; fluid pressure brakes MIDLAND ROSS CORP 28 May 1971 [19 June 1970] 18128/71 Headings F2E and F2F [Also in Division H1] In a dual hydraulic braking system supplying pressure fluid in separate circuits from a master cylinder 12 to the front brakes 18, 20 by way of a pressure responsive mechanism 10, and to the rear brakes 24, 26 by way of mechanism 10 and a pressure proportioning valve 28, the mechanism 10 comprises a device giving a warning when fluid pressure in either circuit is lost and allows full pressure to be applied to the rear brakes 24, 26 in the event of a fluid pressure loss in the front brake circuit when valve 28 is performing a modulating function. Fluid normally passes to front brakes 18, 20 by way of line 16 port 134, passageway 200 formed in a piston 182, passageways 140, 146 and lines 148, 150, and to rear brakes 24, 26 by way of line 36, port 34, passageway 200 in a piston 184 passageway 60, past valve 28, passages 240, 242 formed in a valve fitting 44 and lines 42, 43. If pressure in either circuit is lost the pressure in the other circuit acting on piston 182, or 184 will cause unbalance therebetween and one piston will abut the end of a part 168 or 170 of a member 164 which will thereby be displaced from a central position causing a plunger to ride up cam surfaces 174, 176 so that a contact portion 290 engages a contact 282 to complete an electric circuit through an electrically insulated coil 276, lamp 280 and battery 278. When braking effort is relieved member 164 and plunger 178 will remain displaced as long as the failure exists. If the failure is repaired when a braking effort is applied once more the pistons 182, 184 move back to their normal positions shown in Fig. 1. If the fluid pressure fails in the front brake circuit while the pressure to the rear brakes is being modulated by valve 28 piston 184 is moved to the left to abut portion 170 of member 164 and a snap ring 266 is caused to engage a part 262 of a by-pass valve 246 causing the latter to unseat at 244 and open outlet passageway 230 to the inlet 34 thereby bypassing valve 28. The pressure proportioning valve is that described in Specification 1,283,908.
Patent GB-314524-A (GB)
Title: Improvements in the manufacture of caoutchouc-like masses
IPC: C08G75/02
Filed: 1929-06-13
Abstract: 314,524. Baer, J. June 29, 1928, [Convention date]. Condensation products of halogenated unsaturated hydrocarbons; caoutchouc, synthetic.- Substances resembling caoutchouc are produced by reacting unsaturated halogen compounds of unsaturated hydrocarbons with solutions of alkali or alkaline earth sulphides or polysulphides. In the examples, (1) isoprene dibromide is heated with a solution of calcium sulphide to 80‹ C. for 1 hour; (2) butadiene dichloride is heated with a solution of potassium sulphide to 90‹ C. for 1¢ hours. Specification 279,406 is referred to.
Patent GB-711229-A (GB)
Title: Improvements in or relating to pipe wrenches
Inventor: SHARMAN JOHN CHARLES
IPC: B25B13/50
Filed: 1951-08-02
Abstract: 711,229. Wrenches. GARRINGTONS, Ltd. July 30, 1952 [Aug. 2, 1951], No. 18285/51. Drawings to Specification. Class 61 The teeth on the stem of the movable jaw 21 of a pipe wrench are of saw or buttress configuration, the shorter sides being at right angles to the stem. The teeth 25 of the locking member 24 are of similar shape. The jaws pivot relatively to one another during the pipe gripping operation about the pivot 27 by a distance at least equal to the pitch of the rack teeth. The remaining details of construction are as in Specifications 711,228 and 711,231.
Patent GB-972729-A (GB)
Title: Improvements in vehicular steering mechanism
Inventor: ADAMS FREDERICK JOHN
IPC: B62D3/04
Filed: 1962-05-11
Abstract: 972,729. Screw-and-nut gearing; toothed gearing. HYDROSTEER Ltd. Nov. 23, 1962 [May 11, 1962], No. 18295/62. Heading F2Q. In a vehicle steering gear rotation of a steering spindle A in a housing D causes axial movement of a non-rotatable output member C linked to the rood wheels. As shown in Fig. 1 the member C is a rod extension of a screw C<SP>1</SP> engaged by balls E circulating in a nut A<SP>2</SP> secured to the spindle A, the rod C sliding on a bearing block F spring-loaded against a flat on the rod to prevent its rotation. A ball return passage is found in an insert block A<SP>3</SP> in the nut A<SP>2</SP>. In a modification the output member C, Fig. 3, comprises a rack bar H engaged by a helical pinion or worm G on the steering spindle A, the bar H sliding on a block H<SP>1</SP>. In each case the member C is connected by a ball joint K to a link L which may be coupled to the rood wheel links O, P (Fig. 5) through a bell-crank M<SP>1</SP>-M<SP>2</SP>.
Patent GB-1511672-A (GB)
Title: Brake pressure boosters
IPC: B60T13/14
Filed: 1975-05-02
Abstract: 1511672 Hydraulic brake boosters ROBERT BOSCH GmbH 2 May 1975 [13 May 1974] 18332/75 Heading F2F  In a brake booster with a prestressed elastomeric or other spring 11 and a valve actuating sleeve 14 between a pedal rod 5 and a booster cylinder 22, a central valve 32 for selectively connecting the cylinder 22 to an outlet 36 or a pressure fluid inlet 35 is operatively connected to the sleeve by a connection 30/23 which is breakable after the valve has changed from its relief to its pressurizing condition. In Fig. 1 a transverse pin 30 passing through the valve spool 31 is urged against a flange 23 of the sleeve by a spring 37, a clearance, which is taken up on booster failure, is provided between elements 7 and 8, which are slidable within the sleeve 14, and the spring 11 is disposed between a flange 9 on the element 7 and a housing 10 which abuts the sleeve end 13. The clearance may be provided between the piston 20 and a single rod replacing the rods 7 and 8 (Fig. 3, not shown). In Fig. 2 the sleeve has a conical portion engaged by a valve spool with its axis perpendicular to the sleeve. In a modification of Fig. 1 (Fig. 4, not shown) for operating dual brake circuits, one circuit is supplied from the booster cylinder 22 and the other by an extension of the piston 20 forming a master cylinder piston.
Patent GB-698664-A (GB)
Title: Rotary tools for widening holes in metal parts
IPC: B23B51/04
Filed: 1952-07-21
Abstract: 698,664. Drills. MILANACCIO, G. July 21, 1952, No. 18410/52. Class 83 (iii). A pin drill comprises a hub 1 having three helical cutting segments 2, a pilot sleeve 7 and a nut 9 which screws on the end of an extension 6 of a taper-shank 5 and clamps balls 13 (not shown), between hemi-spherical recesses 12 in the end of the hub and corresponding recesses in the shoulder 16 of the shank, so as to transmit the drive from the shank to the hub. The cutting-edges 3 have chip-breaking grooves 4 staggered radially in the three segments, and longitudinal grooves 8 in the pilot sleeve remove the chips. A projection 10 on the sleeve 7 engages a step on the hub to connect the two parts rigidly together. The hub and the segments 2 may be made wholly of hard metal or, alternatively, hard-metal insets may form the cutting edges.
Patent GB-811347-A (GB)
Title: Improvements in or relating to devices for measuring liquid flow
IPC: G01F1/58
Filed: 1956-06-14
Abstract: 811,347. Electric tests. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 14, 1956 [June 17, 1955], No. 18417/56. Class 37. In an induction flowmeter more than one pair of electrodes is used spaced around the pipe in order to take account of non-uniform flow in the pipe. In the arrangement shown a rotating field is produced either by spaced windings fed with out-of-phase currents or by a rotating permanent magnet. Each pair of electrodes feeds one of amplifiers 10, 11, 12 and transformers 13, 14, 15. The transformer outputs are connected through variable resistors 16, 17, 18 to bridge rectifiers 19, 20, 21, the outputs of which are all connected in series with a meter 22. The variable resistors enable the outputs to be made to correspond to the flow at the appropriate electrode pairs.
Patent GB-390143-A (GB)
Title: Improvements in or relating to apparatus for cleaning bottles or the like
Filed: 1931-06-25
Abstract: 390,143. Bottle-washing brushes. ESCOFET, R., 70, Estanislao Figueras, Tarragona, Spain. June 25, 1931, No. 18442. Convention date, March 31. Void [Published under Sect. 91 of the Acts]. [Classes 19 and 138 (i).] A cleaning element, such as a brush attached to a rotary shaft, is capable of flexure so as to facilitate cleaning of a bottle or like vessel. In the construction shown in Fig. 1, the brush stock 1 is connected to the shaft 5 by a universal joint. In a modification shown in Fig. 2, the stock 11 is connected to the shaft 15 by a rubber sleeve 6. In a further modification, the connection is a helical coil of wire with cylindrical ends and an enlarged middle portion. The connection may also be a ball joint. The brush stock instead of being so connected may be of flexible material, for example, whalebone.
Patent GB-834639-A (GB)
Title: Lubrication system
Inventor: HAAS HERBERT HEINRICH
IPC: B01D29/00
Filed: 1958-06-10
Abstract: 834,639. Lubricating. CONTINENTAL MOTORS CORPORATION. June 10, 1958, No. 18485/58. Class 12 (3). In an internal combustion engine comprising a pressure lubricating oil . system including oil passages in the crankcase structure and an oil filter housing structure 15 removably secured to the crankcase 12, a drain chamber 31 in the filter housing 15 is arranged to receive oil drippings from the filters during their removal from the housing 15. Filter assemblies 27, comprising containers 28 and filter elements 29, are secured in the housing 15 by bolts 30, the containers 28 separating the drain chamber 31 from a pressure chamber 25. The drain chamber 31 communicates with a drain passage 45 from which oil is returned to the sump through a passage 46. The inner ends of the filter elements 29 are in communication with an outlet chamber 33 from which filtered oil passes through outlet passages 34, 35, 36 to main crank-shaft bearings. The chamber 15 has a removable access cover 50. The oil supplied to the filters may pass through oil coolers or it may pass through a by-pass valve to the pressure chamber 25. A filter by-pass valve is disposed between the chamber 25 and outlet passage 34. A pressure regulator is also provided.
Patent GB-125031-A (GB)
Title: Improved Nut-lock Contrivance.
Inventor: JENKINS THOMAS
IPC: F16B39/04
Filed: 1918-11-12
Abstract: 125,031. Jenkins, T. Nov. 12, 1918. Locking nuts.-A nut is formed on one or both sides with a tapered hole to receive a locking-pin C, which has a V-shaped groove c to engage frictionally one of the threads of the bolt. The pin is split at c<1>, and a recess a is formed in the nut to receive the split ends when opened out to secure the pin.
Patent GB-532667-A (GB)
Title: Improved variable speed power transmission mechanism
IPC: F16H29/04
Filed: 1939-06-26
Abstract: 532,667. Variable-speed gearing. COOTE, E. R., and JORGENSEN, O. H. June 26, 1939, No. 18512. [Class 80 (ii)] [Also in Group XXVI] In an infinitely variable speed gear of the kind in which a single eccentric 3 on the input shaft 2 is encircled by a circumferentially adjustable outer eccentric 4 connected through unidirectional clutches to a part to be driven at variable speed in one direction, the outer eccentric 4 is encircled by the big end 6a of a master connecting-rod 6 and a series of links or minor connecting-rods 9 is connected to the big end 6a at circumferentially spaced intervals, the connecting-rods 6, 9 extending substantially radially of the outer eccentric in a plane normal to the axis of the input shaft 2. As shown in Figs. 1 and 2, the outer ends of the connecting-rods 6, 9 are connected to crank-arms 12 on oscillating shafts 13 connected by one-way clutches 16 to shafts 17 each carrying a toothed pinion 18 in mesh with a wheel 19 fast on the output shaft 14. In order to adjust the outer eccentric 4, a manually operated spindle carries a pinion 44 meshing with a toothed quadrant 43 on a forked lever 42 embracing a slide 38 which carries toothed racks 37. A control sleeve 21 rotatable on the shaft 2 is geared to the racks 37 through toothed and worm gearing 27, 28, 32, 33, 36, and is connected to the eccentric 4 by a tongue-and-slot coupling 20. A pointer on the adjustable spindle moves over an indicating dial and the worm gearing may be irreversible to maintain the gear in any position of adjustment. Fig. 7 shows a device for adjusting the outer eccentric 4 when the mechanism is at rest. A control sleeve 21a rotatable about the input shaft 2 has at one end a pin 53 projecting into a radial slot 54 in the end face of the eccentric 4, and at the other end a clutch member 56 engaging a member 57 keyed to the shaft 2. Adjustment is effected by slackening a nut 58 and releasing the clutch member 57 to allow the control sleeve 21a to be turned manually. In a modification, Fig. 8, the adjustment device comprises a hand-wheel 59 on a spindle 61 connected by bevel gearing 62, 63 to a sleeve 64 in which is threaded a slide member 66 guided by splines 67. An inner slide 69 rotatable in the slide 66 has a threaded connection 21c with the control sleeve 21b coupled to the eccentric 4. An indicating pointer 71 is engaged by the end of the slide 66. In a further form, Fig. 9, the adjustment device is actuated automatically in accordance with variations of load on the output shaft. The outer slide 66a is devoid of screw threads and springs 73 are interposed between the slide and a stationary abutment member 78, the pressure of the springs tending to adjust the eccentric 4 to the position of maximum eccentricity.
Patent GB-173461-A (GB)
Title: Improved means for use in cleaning tobacco pipes
IPC: A24F9/12
Filed: 1921-07-08
Abstract: 173,461. Bentley, M. T. July 8, 1921. Cleaners for tobacco pipes.-An elastic disc S is formed with a central hole 9, a conical upper face 11 to fit inside a tap 6, and a projecting lower rib 12 and socket 13 adapted to engage with the mouthpiece 7 or the interior of the bowl of the pipe.
Patent GB-773724-A (GB)
Title: Improvements in and relating to ion-exchange apparatus
IPC: B01J47/10
Filed: 1955-06-27
Abstract: 773,724. Liquid-purifying apparatus. DRUJON, M. June 27, 1955 [July 16, 1954], No. 18532/55. Class 46. Twelve fixed ionexchange containers 44 are each connected by an inlet pipe 71 and an outlet pipe 74 to the central fixed plate of a distributer having the second and fourth of its five plates mounted for rotation upon a shaft 4. Eight of the containers operate in parallel to provide soft water by downward flow. Considering any one container after its eight softening stage, it is firstly washed upwardly with a mixture of once-used brine and soft water, secondly regenerated upwardly with fresh brine, and thirdly and fourthly rinsed upwardly with soft water.
Patent GB-974325-A (GB)
Title: Autoclave for dyeing textiles on dyeing beams
IPC: D06B5/12
Filed: 1963-05-10
Abstract: 974,325. Textile treating apparatus. MASCHINENFABRIK EUGEN BELLMANN G.m.b.H. May 10, 1963 [May 10, 1962], No. 18566/63. Heading D1L. An autoclave for dyeing textiles or dyeing beams is characterized in that the textiles are arranged in axial direction in tandem on two or more dyeing beams on a charging carriage and a coupling device is provided at the contact point of each of two dyeing beams to support said dyeing beams at their butt ends and to seal them against each other. Preferably two dyeing beams are arranged on the charging carriage one of which carries yarn and the other, material sold by the yarn. In the embodiment shown an antoclave 1 is charged with dye liquor via an inlet 2 and discharged via an outlet 5. 3 denotes a circulating pump driven by motor 4 and 6 a vessel for fresh dye liquor. On the bottom of the autoclave there are mounted sails (not shown) which support rollers 23a, 23b of a charging carriage 23 which carries two dyeing beams 11 and 18. Beam 11 carries yarn packages 12 and beam 18 carries material 18a. A coupling device 15 is mounted on the carriage 23 between the two beams and serves to support the beam ends at 14 and 19 and form a seal between the two beams at 17 and 21.
Patent GB-567225-A (GB)
Title: Improvements in or relating to circuit arrangements for periodically operating an electromagnetic relay
IPC: H01H43/30
Filed: 1943-07-30
Abstract: 567,225. Electric supply ; automatic control systems. STANDARD TELEPHONES & CABLES, Ltd., and SHEPARD, S. C. July 30, 1943, No. 18578/44. Divided out of 567,222, [Group XXXVII]. Addition to 557,707. [Class 38 (iv)] [Also in Group XXXVII] A circuit arrangement for periodically operating a relay B and providing adjustable on and off periods comprises a thermistor T2 adapted to vary the current flowing through the relay in response to changes in the temperature of the thermistor and two sets of contacts cl, c2 adapted to be simultaneously operated directly or indirectly by the relay, the contacts c1 controlling the heating circuit r2 of the thermistor and so tending to vary the operating current of the relay while the contacts c oppose this effect. In the form shown in Fig. 1, the heater r2 is supplied with current from an adjustable tapping R9 and after a time lag, the thermistor having a negative coefficient, the current through R2 becomes sufficiently great to operate the relay B. This closes at b the circuit to a relay C which cuts out at c1 the heater r2 and cuts in at c2 the circuit to a heater r3 of a second thermistor R3. Thus, as resistance R2 increases, resistance R3 diminishes, but not quite so much and after a longish time interval relay B releases, releasing relay C in turn so that the cycle begins again. In a modification, Fig. 2, a thermistor T4 has both direct and indirect heating and when the relay D operates, the indirect heater r4 is cut off at e2, while the opening of contacts el serves to increase the operating voltage to the thermistor and relay. Thus, the cooling of the thermistor is delayed and only after a longish interval does the relay D release. To give a greater time lag, one or more additional thermistors T33 may be included by moving a switch S1, S2 to the position 1. The heater r33 of this thermistor T33 must now be heated before the current flowing through it is sufficient to heat the heater r4 of the first thermistor. Compensation for variations of ambient temperature is also provided by an opposing winding g in series with another thermistor T5. Alternatively, when the arrangement is used to control an oven, the thermistor T5 is subject to the oven temperature and the winding g supports the main winding of the relay. The arrangement diminishes the proportion of on " to " off periods as the oven gets hot, till a limiting temperature is reached.
Patent GB-1038177-A (GB)
Title: Stock feeding means for a paper making machine
Inventor: STEWART ALEXANDER ERIC
IPC: D21F1/02
Filed: 1963-05-10
Abstract: 1,038,177. Paper-making apparatus. DOMINION ENGINEERING WORKS Ltd. May 10, 1963, No. 18612/63. Addition to 853,875. Heading D2A. The headbox described is identical with that of the parent Specification except that discharge pipes 59, 60, with valves 61, 62, which allow a small amount of pulp to leak from the smaller ends of the distribution conduits 57, 58 to the wire pit or sump, are not, in addition, joined to the adjacent end 54, 55 of the other conduit.
Patent GB-573231-A (GB)
Title: Improvements in fluid seals for shafts and bearings or the like
IPC: F16J15/32
Filed: 1943-11-11
Abstract: 573,231. Oil seals. WRIGHT,H. CLAYTONNov. 11, 1943, No. 18738. [Class 122 (v)] A shaft sealing device comprising a rubber or like ring 1 adapted for press fit in a housing is provided with a sealing lip 2, a rigid reinforcing ring 5 bonded to one side face, and a peripheral projection 7 to ensure a good sealing fit in the housing. A second rigid ring may be bonded to the other side face of the rubber ring.