baber/WOPTO huggingface dataset:
Patent GB-735583-A (GB)
Title: Improvements in or relating to the manufacture of felted materials
Inventor: HAM ARTHUR FREDERICK
IPC: D04H17/00
Filed: 1952-11-17
Abstract: 735,583. Filters; gravity-separation apparatus. BRITISH HAT & ALLIED FELTMAKERS RESEARCH ASSOCIATION. Nov. 16, 1953 [Nov. 17, 1952], No. 28915/52. Class 46. [Also in Groups VII, VIII and XXVIII] Liquor is filtered and re-circulated in a fulling engine or stocks for producing felted materials by using some of the energy imparted to the liquor by the hammer stroke of the stocks to produce impulsive circulating movement of the liquor through a re-circulating circuit. As shown, liquor in the bumper chest 18 is forced, by downward movement of a bumper hammer 20, into a control tank 21 through a tube 22 connected to the usual end drain plug hole of chest 18. At the same time liquor in tank 21 is forced past a non-return valve 26 through a pipe 27 back into chest 18. Tank 21 is fitted with a baffle 23 and a filter screen 24 so that loose fibres are separated from the circulating liquor. In an alternative arrangement, tank 21 is disposed at the side of chest 18 and discharges 'liquor through a pipe overhanging the top of the chest.
Patent GB-449850-A (GB)
Title: Improvements in and relating to change-speed driving mechanism for cycles
IPC: B62M11/14
Filed: 1935-10-21
Abstract: 449,850. Variable - speed epicyclic gearing. STEIMANN, H., 5, Rue de la Paix, La Chaux-de-Fonds, Switzerland. Oct. 21, 1935, Nos. 28968 and 28969. Convention dates, Oct. 23, 1934 and Oct. 9, 1935. [Class 80 (ii)] Two- or three-speed epicyclic gearing, mounted on the pedal-bracket 23 of a cycle and comprising a controlmember such as 2, Fig. 7, or 6, Fig. 10, slidable inside the hollow driving pedal-shaft 1, is characterized in that the annulus 16 of the train is secured to the pedal-shaft 1, whilst the planetcarrier is secured to the driven chainwheel 24. In Fig. 7 the control-rod 2 is operated by either heel of the rider, and carries with it, for axial movement only, a freely-mounted sunwheel 6, on which is also freely mounted a second sun-wheel 33, which constantly mesh respectively with stepped planets 13, 34 carried bv the driven chain-wheel 24, and the driving annulus 16. Movement of the control rod 2 towards the left of Fig. 7, first declutches the sun 6 from solid driving connection at 26 with the annulus, and holds the sun stationary at 29, giving second speed. Further movement first frees the sun 6 from the fixed teeth 29, and then causes it to abut against and push the sun 33, against spring resistance 35, into engagement with fixed teeth 25, giving the lowest speed. In a two-speed modification., the wheels 33, 34 are omitted, and the gear teeth of the sun 6 directly clutch the casing on one side and the annulus on the other. In Fig. 10, the internal control-member slides in a slot 47 in the shaft and carries an external collar 6, which is adapted to depress spring- loaded radial pins, two, 48, 48<1>, of which lock loose suns 51, 52 to the fixed casing, whilst a third 48<11> clutches a loose sun 53 to the driving annulus 16 for direct drive. The driven planetcarrier 11 carries three stopped planets 55, 56, 13 all rigidly connected together. The control.- collar 6 is oporated by a tension-cable 45, acting against an internal spring 46.
Patent GB-871185-A (GB)
Title: Organic compounds of boron
IPC: C07F5/02
Filed: 1959-08-25
Abstract: Polymers having the structural unit: <FORM:0871185/IV (a)/1> are prepared from styreneboronic acid.  In an example, styreneboronic acid is refluxed in water for about 1 hour; during which a solid is precipitated.  This polymer, when moulded, forms translucent hard materials which are insoluble in substantially all of the common organic solvents.ALSO:Styreneboronic acids (HO)2B.C6H4.CH : CH2 are prepared by reacting ortho-, meta-, or parastyrylmagnesium halide with an ester of boric acid to give an ester of a styreneboronic acid, and then subjecting the ester to hydrolysis.  In an example, the magnesium compound of p-bromostyrene is made in the usual manner, and reacted with trimethyl borate.  The reaction-mass is poured into cold dilute hydrochloric acid.  The organic layer is separated; and the aqueous layer is extracted with ether.  The organic layers are combined, and distilled under reduced pressure.  The residual p-styreneboronic acid is re-crystallized from hot water.  Other examples relate to the preparation of the meta- and the ortho-isomers.  The styreneboronic acids readily undergo polymerization reactions (see Group IV(a)).  The styreneboronic acids may be used as herbicides, either alone or in combination with other phyto-toxic materials.  The acids also have use in the glass industry (see Group XXIII).  p-Bromostyrene is prepared by dehydrobromination of p-bromo-(a -bromoethyl)-ben-zene.
Patent GB-445697-A (GB)
Title: Improvements relating to the digestion of sewage sludge
IPC: C02F3/28
Filed: 1934-10-11
Abstract: 445,697. Treating sewage. MONTGOMERY, J., The Gables, Couchmore Farm Estate, Esher, Surrey. Oct. 11, 1934, No. 29077. [Class 111] A centrifugal pump 2 is associated with a sludge digestion tank 1 and is connected so that it can circulate and agitate the sludge by withdrawing it through a pipe 5 and returning it through a pipe 6 to a rotary distributer 7 which has depending stirrers 8 and is arranged to rotate in the direction opposite to that in which the sludge is projected. The pump is driven by an electric motor 20, and has additional connections to a source of sludge, from which the tank 1 is supplied through the pipe 6, to sludge lagoons or the like, to which digested sludge drawn from the bottom of the tank through a pipe 4 can be discharged, and to a receptacle to which the contents of the tank can be discharged. A duplicate pump and motor may be connected in the system.
Patent GB-1357221-A (GB)
Title: Hook bolt
IPC: E04B1/41
Filed: 1971-06-22
Abstract: 1357221 Hook bolts RAPID METAL DEVELOPMENTS Ltd 24 May 1972 [22 June 1971] 29117/71 Heading F2H An L-shaped hook bolt of high trensile steel for embedding in concrete has a threaded end 11, a basically circular cross-section, and a plurality of pairs of opposed concave depressions, preferably four pairs 12-15 positioned as shown, to retain the bolt when the concrete has set.
Patent GB-710065-A (GB)
Title: Improvements in or relating to a method for producing titanium concentrates
IPC: C22B34/12
Filed: 1952-11-18
Abstract: A method of producing a digestible titanium concentrate comprises forming a mixture of a titaniferous iron ore containing 8-65 per cent. of titanium oxide, an oxidic compound of silicon, an oxidic compound of aluminium, an oxidic compound of sodium and a carbonaceous reducing agent such as powdered carbon, coke or coal, heating the mixture at a temperature of 1300-1700 DEG C. preferably 1300-1500 DEG C. to form a slag and molten iron until the ferrous oxide content of the slag is reduced to between 2-20 per cent., the molten iron and the slag forming separate layers which may be separated, the amount of oxidic compounds of silicon aluminium and sodium present in the original mixture being sufficient to form a slag on which the sum of silica, alumina and sodium oxide is from 0.75-2.2 parts for each part of titanium oxide and in which the silica comprises from 40-55 per cent., the alumina 20-35 per cent. and the sodium oxide 20-30 per cent. of the total silica+alumina+sodium oxide present in the slag, leaching the slag with dilute sulphuric acid to remove the silicon, aluminium and sodium acid soluble compounds and also substantial amounts of the iron, calcium and magnesium constituents and then separating the leach liquor from the leached titanium slag.  The greatest solubilisation of the gangue constituents is experienced when the silica is from 45-50 per cent., the alumina from 24-30 per cent. and the sodium oxide from 22-28 per cent. of the total silica+alumina+sodium oxide present in the slag, corresponding to a molecular composition 1.5Na2O.1A12O33SiO3.  Ores which may be utilised in the process are magnetite ilmenite, haemetite ilmenite and ilmenite The leaded slag is readily soluble in strong sulphuric acid and the titanium values can be recovered as titanium sulphate.
Patent GB-1186524-A (GB)
Title: Flash Discharge Tube for Exposing Emulsions Sensitive to Artificial Light
IPC: H01J61/33
Filed: 1967-06-23
Abstract: 1,186,524. Discharge lamps. GES. FUR MULTIBLITZ-GERATE DR ING. D. A. MANNESMANN m.b.H. 23 June, 1967 [23 Sept., 1966], No. 29155/67. Heading HiD. A flash lamp for exposing emulsions which are sensitive to artificial light comprises a quartz discharge tube I having an external coating 4 of fluorescent material and a protective envelope 3 mounted on a pin-type base 2. The coating 4 reduces the colour temperature of the lamp.
Patent GB-817443-A (GB)
Title: Porous pots for primary electric cells
Inventor: MCNICOL JOHN CHARLES
IPC: H01M2/18
Filed: 1955-10-13
Abstract: 817,443. Primary cells. HAWLEY PRODUCTS Ltd. Oct: 12, 1956 [Oct. 13, 1955], No. 29160/55. Class 53. A porous pot for use in a primary cell is made from a bonded mixture of fibrous or powdered material with at least 60 per cent of fibrous silicate. Thus, in a preferred example, 90 per cent rockwool fibres is mixed with 10 per cent cellulose fibres and the mixture bonded and formed into a pot as described in Specification 642,744.
Patent GB-965725-A (GB)
Title: Improvements in windscreen cleaning systems for motor vehicles
IPC: B60S1/48
Filed: 1962-07-30
Abstract: 965,725. Windscreen cleaning systems. VDO TACHOMETER WERKE, ADOLF SCHINDLING G.m.b.H. July 30, 1962 [Sept. 16, 1961], No. 29189/62. Heading A4F. [Also in Divisions F1 and H2] In a windscreen cleaning system for a motor vehicle the bellows pump and wiper motor switch are contained in the same housing as a steering column direction indicator switch and the actuating member for the direction indicator switch is also operable for actuating the bellows pump and wiper motor switch. The direction indicator switch 1 is fixed on a plate 2, pivotally mounted as at 3 and actuated by lever 5 when rocked in the direction of the arrows B-C (Fig. 2). The wiper switch 9 is fixed on plate 8 on the opposite side from the pump bellows 11. Switch 9 has an actuating member 18 articulated on pivoted plate 2 which is additionally connected to plate 8 through telescopic arm 19. Detent means 22 on plate 2 co-operate with openings 23, 24, and 25 in housing 4 so that for the position of plate 2 shown in Fig. 1, wiper motor switch 9 is switched off. On rocking lever 5 and thus plate 2 in direction "E" and into positions established by openings 24 and 25, slow and fast operation respectively of the wiper motor is achieved due to actuating movement of arm 18 against switching stages of switch 9. On further movement of lever 5 switch 9 remains on and pump bellows 11 is actuated through arm 18 and plate 8. The return spring 16 returns the plate 2 to its prior position after each actuation of the pump.
Patent GB-1345598-A (GB)
Title: Fuel injection pump
IPC: F02M59/42
Filed: 1971-06-22
Abstract: 1345598 Fuel injection pumps MITSUBISHI JUKOGYO K K 22 June 1971 [23 June 1970] 29293/71 Heading F1A In a fuel injection pump comprising a plunger 7 reciprocable in a cylinder barrel 8 having ports 15a, 15b in communication with a fuel supply chamber 17, the plunger 7 is angularly adjustable to an engine-starting position, Fig. 1, providing two-stage injection and an engine-running position providing only a main injection. The preliminary injection occurs, Fig. 1, on closure of the ports 15a, 15b and is terminated when a spill groove 13 in the plunger communicates with the port 15a. Thereafter the main injection commences when the groove 13 and port 15a no longer communicate and is terminated when a spill groove 14 communicates with the ports 15a, 15b. After starting the plunger 7 is rotated to the Fig. 4A position in which main injection commences when the plunger position 7c closes the port 15b.
Patent GB-1040395-A (GB)
Title: Improvements in or relating to valve rocker arms
Inventor: SAMPIETRO ACHILLES CHARLES
IPC: F01L1/18
Filed: 1963-07-24
Abstract: 1,040,395. Valve gear. THOMPSON RAMO WOOLDRIDGE Inc. July 24, 1963, No. 29367/63. Heading F1B. An I.C. engine valve gear comprises a rocker arm 10, Fig. 1, formed with side walls 33 and a cylindrically-shaped bearing surface 26 which is engaged by a bearing 27 the ends of which abut the side walls and a support 38 which holds the bearing in position. The bearing 26 has surfaces which engage flats 32 to prevent rotation of the rocker arm. In another embodiment the bearing is a semi-cylindrical solid member and in a further embodiment the bearing 56, Fig. 8 (not shown) is supported on a downwardly extending stud 61, having surfaces which engage the rocker arm to prevent its rotation. In modifications the rocker arms may be pivoted by a push rod.
Patent GB-229393-A (GB)
Title: Improvements in temperature controlled mechanism
IPC: F22B37/47
Filed: 1923-11-21
Abstract: 229,393. Barker, N. M. Nov. 21, 1923. Alarms, low-water. - A temperature-controlled device comprises a fusible member and a member which is in engagement therewith and is adapted to be immersed therein when the fusible member melts, thus actuating an alarm etc; the. device is re-set, after the solidification of the fusible member, by relative rotation of the two members, which are thereby unscrewed from one another. A rod 12 has a screwthreaded end 13 engaging fusible material 7 (e.g. tin) in a plug 5, which is spaced from a surrounding shell 4, its lower end projecting into the firebox. The rod 12, enclosed in a tube 10, passes through a stuffing-box in the roof-sheet of the boiler, and its upper end engages, through an expansion-compensating spring 16, the stem 15 of a valve 17, which opens under the action of a spring 21 when the fusible material 7 melts, thus allowing steam to pass to a whistle. The device is re-set after the solidification of the material 7 by rotating the rod 12 by a spanner inserted through an opening 11<b> in a casing 11. The opening 11<b> is normally closed by a sliding shutter 23, which is locked in position by passing the spanner through apertured lugs on the parts 11, 23, and applying a breakable seal.
Patent GB-986782-A (GB)
Title: Apparatus for resiliently anchoring a marine structure
IPC: B63B21/50
Filed: 1963-07-25
Abstract: 986,782. Marine structures. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. July 25, 1963 [July 27, 1962], No. 29569/63. Heading E1H. [Also in Division B7] A marine structure 11 used e.g. for drilling holes underwater, of the floating type or of the type which is supported by the floor beneath a body of water is anchored to prevent a substantial lateral movement thereof by an anchoring system comprising at least one float 28 disposed at a distance from structure 11, an anchor line 43 secured to the float and extending away from structure 11 to an anchor, an interconnecting line extending from float 28 at an angle downwardly to structure 11 to meet said structure below the water surface 27 and means 21 connected to the interconnecting line for applying a predetermined tension therein. The means 21 comprises a winch which exerts a tension on a pulley block system (Fig. 7 not shown) which forms part of the interconnecting line. A number of spaced floats may be distributed around the structure.
Patent GB-875789-A (GB)
Title: Improvements in or relating to ball and socket joints
Inventor: BLAND RICHARD CAVE
IPC: F16C11/06
Filed: 1958-09-16
Abstract: 875,789. Ball-and-socket joints. AUTOMOTIVE PRODUCTS CO. Ltd. Sept. 16, 1959 [Sept. 16, 1958], No. 29654/58. Class 65(2). The ball pin 4 has an enlarged head 6 (Fig. 1) at the inner end thereof and is surrounded by a bush 5 of nylon or like material having a partspherical bearing surface urged into engagement with the part-spherical bearing surface of the socket and a conical recess which receives a correspondingly shaped conical portion of the pin or its head, the conical surfaces of the recess and the pin or head being in contact. The bearing surfaces are maintained in engagement by an annular pad 7 which is under compression and is made, e.g., of cotton fabric impregnated with a " dry " lubricant such as polytetrafluoroethylene, or of polyurethane. The bearing surface of the socket may be lined with nylon or the like. The conical surface in Fig. 1 is formed on the ball pin, while that in Fig. 2 is formed on the enlarged head 13. The bush 5 may be made in two or more parts or may comprise a single part having slots to enable it to be placed in position on the pin.
Patent GB-1222015-A (GB)
Title: Mechanisms for stopping spindle rotors
IPC: D01H7/22
Filed: 1968-06-21
Abstract: 1,222,015. Spinning apparatus. PALITEX PROJECT CO. G.m.b.H. 21 June, 1968 [23 June, 1967], No. 29712/68. Heading D1D. [Also in Division F2] A pivoted lever 23 mounted on the inside of a whorle 5 of a spindle rotor 3 normally pivots outwards due to centrifugal force but when the whorle is braked it can enter a recess 20 in a fixed part of the spindle mounting to accurately locate an eyelet 7 for rethreading. A member 19 enters the recess axially to remove the lever 23 from the recess to allow the spindle to rotate. The spindle is tangentially driven from a belt 4 and is braked by rotating a member 17 to force agent brake shoes 14, 15 this braking action is provided from a handle 48 pivoted at 45. Rotation of the handle also causes the rod 19 to descend thus exposing the recess 20 and allowing the lever 23 to fall in when it has slowed down sufficiently. Various arrangements of recess engaging members may be provided including bolts and balls mounted in guideways. An overload release in the brake handle may be provided as shown in Fig. 8 such that if the force exerted by lifting the handle 48 is too great the pin 43 compresses spring 53 and a catch 54 is released to release the brake and allow the spindle to rotate fractionally until the recess is properly engaged and the spindle locked in the desired position.
Patent GB-680137-A (GB)
Title: Improvements in or relating to electric motor
IPC: H02K17/04
Filed: 1949-11-21
Abstract: 680,137. Induction machines. HUTCHINS ELECTRIC CO., Inc. Nov. 21, 1949 [Dec. 2, 1948], No. 29740/49. Class 35. A self-starting single-phase squirrelcage motor has a plurality of pairs of poles, a pair of windings in parallel and of unequal reactance, each winding being distributed over only part of the pole faces of a plurality of poles, and a winding in series with at least one of said windings and distributed over only part of the faces of each of a plurality of poles. Fig. 1 shows one pole of a two-pole motor stator 2 containing slots A, B in which are located windings a, b respectively, winding a having lower inductance. The higher inductance of the winding b is obtained because the slots B are deeper than slots A. Generally, the winding a has a ratio of leakage reactance to resistance of 1 : 2 and that of the winding b of 2 : 1. Fig. 4 shows how the windings are connected, e.g. series-parallel, but other combinations can be used provided the respective relationships required are maintained. For starting purposes it is essential that the maximum currents in the windings a are reached before those in the windings b. When the rotor is up to speed, voltages are induced in the windings a, b, but as these windings are so displaced with respect to one another and have their relative number of turns so selected that the resulting circulating current between them will be eliminated and thus the motor will be able to run with both windings continuously energized without undue heating. Figs. 2A, 2B show how deeper slots for the winding b are constructed by either filling the slits of the slots 8 with bundles of steel wires or steel strips 10 or by completely closing the slit as in the case of slots 6. The invention is also applicable to the single phase synchronous motor.
Patent GB-936109-A (GB)
Title: A new or improved teaching apparatus
IPC: G09B3/08
Filed: 1962-08-02
Abstract: 936,109. Educational appliances; autographic recording apparatus. A.B. SANFORD. Aug. 2, 1962, No. 29811/62. Classes 16 and 146. (2) A question and answer teaching apparatus adapted to be used with a programmed tape of either the type on which an answer is written in response to a question or of the type on which a correct answer is selected from a multiple of preprinted answers, comprises a case with a hinged and fastened lid 9, Fig. 4. The lid 9 is provided with a first opening 35, Fig. 2, which may be covered by a transparent sheet 37, through which a question may be read, a hinged cover 39 being provided for dealing with longer questions. A second opening 41 is used for writing in of the answer, whereupon the programmed tape 71, Fig. 4, resting on a supportplate 31, removably mounted on pillars 33, is advanced by a knob 27, Fig. 2, so that the written answer appears below a transparent window 43 and the corresponding preprinted answer in the opening 41. The student on checking both answers may then use a pencil or a stylus and insert it into one of the openings 45 or 47, in the window 43 depending on whether the answer was right or wrong. Below the first opening 35, there is a plurality of transparent windows 53, 55, 57 in which appear the preprinted answers, when the alternative programmed tape is used, and the student selects the apparently correct answer by lifting one of the opaque covers 59, 61, 63, an underlying statement telling him whether or not the answer is correct and why. Lifting of any of the covers perforates the tape 71 by a tab 67 on the covers, thereby marking the tape and the student selects a further answer and lifts the corresponding cover if his preceding answer was incorrect. An open frame 40, for a drawing or diagram, may be provided and the space 73 within the housing may be used for storage of other programmed tapes.
Patent GB-423495-A (GB)
Title: Improvements in or relating to ultra-short wave signalling systems
IPC: H04B7/145
Filed: 1934-10-19
Abstract: 423,495. Wireless signalling. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. Oct. 19, 1934, No. 29939. Convention date, Oct. 25, 1933. Addition to 331,667, [Class 40 (v)]. [Class 40 (v)] Relay stations for ultra-short waves are so arranged that the waves are transmitted in straight lines with no obstructions in their path and the directional propagation is obtained without parabolic reflectors, by the mutual arrangement of individual emitters.