baber/WOPTO huggingface dataset:
Patent GB-333070-A (GB)
Title: Improvements in and relating to spring wheels for automobiles and other vehicles
IPC: B60B9/06
Filed: 1929-08-30
Abstract: 333,070. Hill, H. Aug. 30, 1929. Spring wheels.-In wheels of the kind described in Specifications 219,623 and 297,858, comprising spoke elements 28 pivoted to an outer rim 1 and adapted to telescope in brackets 32 pivoted on the hub, resilient devices, such as helical springs 20, are fitted between the outer and inner rims 1, 2, so as to act in compression at the top and bottom of the wheel. The springs 20 are fitted between stirrups 11, 14 connected respectively to the inner and outer rims. The stirrups 11 are adapted to slide on ferrules 7 which are secured to the rim 2 by pivoted tee-bolts 6. The stirrups 14 are formed with slots 15 to receive pins 16 on the outer rim 1. Rubber cushioning- strips 25 are secured inside the rim 1 by plates 26, and rubber blocks 34 may be fitted between the brackets 32 and radial webs on the hub.
Patent GB-1101696-A (GB)
Title: Process for separating solids from liquid suspensions thereof
IPC: B01D21/00
Filed: 1966-06-15
Abstract: 1,101,696. Centrifugal separators. BIRD MACHINE CO. 15 June, 1966 [17 June 1965], No. 26616/66. Heading B2P. A process, for separating solids suspended in liquid, comprises a primary stage separator 10 and a secondary stage separator including a centrifuge 22 and another separator 18. A major part of the overflow from the primary stage separation may be recirculated for use without separating therefrom a fraction of the solids requiring chemical addition for separation. The suspension is treated in the primary stage separator so that the overflow suspension contains substantially the solids fraction. The primary stage underflow is fed to the centrifuge 22. A major part of the overflow from the primary separator is recirculated for use elsewhere via a line 14. Another portion of the overflow is fed to the other secondary stage separator 18 and a flocculant reagent is added from a tank 24 via a line 26 to cause separation of the solids content from the overflow of the secondary stage separator. The underflow is fed from the secondary separator to the centrifuge. A flocculant reagent is added to the feed to the centrifuge from a tank 27 to cause the solids fraction to separate 'from the effluent of the centrifuge together with the other solids content of the feed. As described, the underflow from the primary stage is heated to 100‹ to 150‹F by a heat exchanger 20 before it is fed to the centrifuge 22. The primary stage separator may be a large settling tank located outdoors and the secondary separator a small settling tank located indoors. Alternative embodiments may include separators other than tanks, e.g. centrifuges. and the centrifuge overflow may be recirculated.
Patent GB-327087-A (GB)
Title: The manufacture and production of vat dyestuff preparations
IPC: C09B67/28
Filed: 1929-03-25
Abstract: 327,087. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). March 25, 1929. Divided on 320,397. Dye preparations are made by mixing together from 3 to 60 parts by weight of a pure sulphonic acid of N - dihydro-1 : 2 : 2<1> : 1<1>-anthraquinoneazine and from 97 to 40 parts by weight of, preferably, pure N - dihydro - 1 : 2 : 2<1> : 1<1>-anthraquinoneazine or an unsulphonated derivative thereof. The pure sulphonic acids are obtained by the processes described in Specifications 320,397 or 327,007, and, in examples, one of these sulphonic acids is mixed either with the pure N- dihydro - 1 : 2 : 2<1> : 1<1> - anthraquinoneazine made according to example 4 of Specification 184,193 or with the pure monochlor derivative made according to example 2 of Specification 322,277. Specifications 339/09 and 240,168 also are referred to.
Patent GB-814480-A (GB)
Title: Improvements in electrolytic apparatus
IPC: C25B9/20
Filed: 1956-08-31
Abstract: 814,480. Electrolytic cells. EVANS, D. J. Aug. 30, 1957 [Aug. 31, 1956], No. 26680/56. Class 41. A multi-plate electrolytic cell, e.g. for producing sodium hypochlorite, comprises a plurality of electrodes 11 of disc shape arranged coaxially on a supporting frame for immersion in an electrolytic bath, each electrode 11 being carried on rods 22, 24 extending longitudinally of the cell, with interposed spacers 19 defining gaps between electrodes while leaving passages for inlet and outlet of electrolyte to and from the gaps. The term rods includes tubes and channels. The electrodes 11 are graphite discs sandwiched between metal end plates 27 each having a central outwardly extending tube telescopically engaging in a tube on a plate 29 secured to the floor of the tank containing the electrolyte. A screw supported by the plate 29 and engaging in the outer end of the inner tube enables the pressure on the electrodes to be adjusted. In one embodiment, the spacers 19 are polythene -or polyvinyl-chloride (P.V.C.) annuli with outwardly extending bays 20 to permit ingress and egress of electrolyte to the inter-electrode spaces, and radial holes 49 may be provided to allow escape of gas. The annuli 19 are tapered at 21 to form surfaces 26 which, like the electrodes 11, bear on the rods 24, rods 22 providing additional support. The rods 22, 24, which are sheathed in P.V.C. 23, 25, pass through holes in the plates 27 and are secured at each end in the plates 29. The peripheral faces of the electrodes 11 are sheathed with unplasticised P.V.C. 12 and a plastic material, e.g. P.V.C., covers the plates 27, 29, and the outer telescopic tube and associated parts. Contact plugs with insulating sleeves are screwed into end electrodes in face-to-face contact with the end of electrodes 11. The spacers 19 may be replaced by rubber or plastic washers or U-members on the rods 22, 24, the washers being radially split to facilitate insertion and removal. The telescopic tubes may be arranged in this modification to exert pressure along a line lying within the area of the four rods 22, 24. The construction comprising the end plate 27, telescopic tubes, plate 29 and adjusting screw may be confined to one end of the apparatus. Specification 745,048 is referred to.
Patent GB-423202-A (GB)
Title: Improvements in boundary strips for wall coverings
IPC: E04F19/02
Filed: 1933-09-28
Abstract: 423,202. Tiling; mouldings. DEDERICHS, H., 38, Mechenstrasse, Bonn-on-Rhine, Germany. Sept. 28, 1933, No. 26719. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 23, 1934.] [Classes 20 (iv) and 87 (i)] A boundary or moulding strip for use at the edges of tiled surfaces comprises two substantially vertical portions d, f connected by a portion e making an obtuse angle with each, the lower vertical portion f being disposed further forward than the upper vertical portion d and being provided at its bottom edge with a rearward extension g which makes an obtuse angle with the lower vertical portion f. The extension d is embedded in the wall plaster b and the extension g engages the edges of the upper course of tiles c. The strip is adapted to be positioned either as shown in full lines or in dotted lines in Fig. 1 according as to the position of the tiling surface relatively to the vertical or inclined face of the brickwork. The arrangement of the strip to suit walls wherein the plaster above the tiling surface is thinner or thicker than the plaster underneath the tiles is also described. Where two boundary strips meet at a corner, one strip m may be provided with a curved extension as shown in Fig. 8 or a curved filling piece may be provided. The vertical corner between two tiled wall surfaces may be completed by the strips which are then arranged vertically as shown in Fig. 8. The strips may be arranged in inverted position for positioning at the junction between a tiled window sill o and a tiled wall surface c as shown in Fig. 10. Adjacent a wash bowl p, Fig. 11, the strip is arranged with the extension d adjacent the tiled wall surface c and the part g adjacent the rim of the bowl p. At the inner edge of a tiled door-surround, the strip may be arranged in inverted position as shown in Fig. 12, and at the outer edge of the surround the strips may be arranged normally. The strip may also be fitted adjacent a tiled window sill o with its extension g resting on the sill as shown in Fig. 13 and the extension d embedded in the plaster b of the wall of the window opening.
Patent GB-156948-A (GB)
Title: Improvements in carburetor for internal combustion engines
IPC: F02M3/08
Filed: 1919-10-30
Abstract: 156,948. Weiland, A. Oct. 30, 1919. Spray carburettors.-The carburettor comprises a main fuel nozzle, a slow-speed nozzle in permanent communication with the induction pipe, and an intermediate nozzle mounted upon and moving with the throttle valve. The main nozzle S, Figs. 2 and 5, opens into an horizontal mixing- chamber 3 open at one end 4 to the air and leading at the other end 5 to the induction tube. The nozzle is fed either from a float chamber 2, Fig. 5, or from a main reservoir 2, Fig. 2, fed alter. nately from two supply chambers 9, 10. The intermediate nozzle 29, Fig. 5, is formed in a boss 30 on the carburettor side of the butterfly throttle valve 6 and is fed from an auxiliary reservoir 26 communicating through an orifice 27 with the main reservoir or chamber 2; the fuel is aerated by air induced through a passage 28. The slow-speed nozzle 18, Fig. 3, is fed from the main reservoir or chamber 2 and is surrounded by an auxiliary reservoir 14 in which fuel accumulates; air enters through an aperture 20 and an annular passage 19. and the mixture is delivered to the induction pipe beyond the throttle through a conduit 21. In a modification, the slow-speed nozzle comprises an auxiliary reservoir into which dips an air inlet pipe, the reservoir being fed at the bottom through a restricted orifice and communicating at its upper end with the induction pipe. In the form shown in Fig. 2, the suction in the mixing-chamber 3, acting through passages 34, causes the chambers 9, 10 to be filled alternately through conduits 13 controlled by flap valves 35, and a pipe 12 leading from a low-level tank. The chambers 9, 10, which feed the reservoir 2 alternately, are each provided with a float 36 mounted upon a fixed pivot 42 and provided with an arm 44 universally mounted upon the rod 46 of an outlet valve 37, the valves 37 being connected by a rod 38. The fall of the float in the chamber which has been supplying the reservoir 2 thus closes its valve 37 and opens the valve of the other chamber.
Patent GB-382717-A (GB)
Title: Improvements in or relating to brush gear for electric motors
IPC: H02K27/10
Filed: 1931-09-25
Abstract: 382,717. Alternating current commutator motors. WATLIFF CO., Ltd. and WOODHEAD, W. E., 175, Merton Road, Wimbledon, London. Sept. 25, 1931, No. 26770. [Class 35.] Automatic gear for removing the brushes from the commutator of a repulsion induction motor when a certain speed is reached and replacing them when the speed falls to the same or a determinate lower value comprises two rings arranged to slide transversely on the motor shaft under the influence of centrifugal force, one ring serving to remove the brushes, the other to replace them. The ring g which removes the brushes slides outwardly against the action of a spring l so as to strike against tappets u on rocker plates q carrying the brushes o. The other ring h consists of two portions riveted together and so arranged that one portion which strikes against tappets t on the plates q is overbalanced by the other portion and withdrawn from the tappets by it against the action of a spring m when the speed exceeds the required amount. A spring v holds the rocker plates in either position after the rings g, h have moved them. The commutator is provided with a short-circuiting device f of known construction, and the arrangement is such that the brushes are returned to the commutator before it is open-circuited.
Patent GB-151287-A (GB)
Title: Improvements in and relating to combined bumper & lifting jacks for motor vehicles
IPC: B60R19/48
Filed: 1920-09-20
Abstract: 151,287. Sjolander, G. Sept. 20, 1919, [Convention date]. Wheel guards and obstruction-removers. - Motor-vehicles are fitted with a two-part wheel guard or obstruction-remover the parts of which can be tilted into a vertical position and serve as lifting-jacks and can be locked in the raised position to prevent unauthorized use of the car. The wheel-guards comprise a pair of lifting-jacks 10 pivotally mounted on projections 17 on the chassis, the mounting being slidable and enclosing a buffer spring 19. When in the horizontal position and acting as wheel-guards, the jacks are centrally secured by a bolt 20.
Patent GB-1176294-A (GB)
Title: Device for the Indication of the Equatorial Astronomical Coordinates of Astronomical Instruments
IPC: G02B23/00
Filed: 1968-06-06
Abstract: 1,176,294. Electric indicating systems. CARL ZEISS-STIFTUNG [trading as CARL ZEISS]. June 6, 1968 [June 14, 1967], No.26922/68. Heading G1N. An astronomical telescope 1 Fig.1a mounted for rotation about two perpendicular axes 2, 3 and used as shown or in the reversed position Fig. 1b has its angular displacements about each axis 2, 3 measured and repeated by a synchro system incorporating automatically operated switches controlled by the telescope as it is changed from principal to reversed position and vice versa, so that an indicator at the output of each synchro system always indicates correctly the direction of the telescope. Thus, rotation of the telescope about e. g. axis 3 is mechanically fed via gears to the rotor of selsyn transmitter 21 Fig. 5, whose 3-phase stator windings are connected to the 3- phase stator windings of selsyn receiver 22. The receiver rotor winding signal is compared at 24 with the reference A. C. feeding the transmitter rotor winding, and any difference causes servomotor 34 to bring the rotors into angular agreement. When the telescope is moved into its reverse position, switch 28 energizes relay 13 to actuate switches 23 and change over the signals in two of the three inter-connected stator windings. Further changeovers are effected by contacts 30 and relay 31 to produce correct indications as meters 27 in all four quadrants about each axis.
Patent GB-196305-A (GB)
Title: Improvements in and relating to electric relays and the like
IPC: H01H71/44
Filed: 1921-10-11
Abstract: 196,305. British Thomson - Houston Co., Ltd., and Fitzgerald, A. S. Oct. 11,1921. Electromagnetic switches or relays are rendered insensitive to relatively heavy currents of very short duration (corresponding for example to one or two alternating current cycles) while retaining the full sensitiveness to normal overloads of appreciable duration by providing a suspended or floating mass 5 in the path of movement of the armature 3 to receive the energy due to the momentary current Without the relay closing. When an excess current of appreciable duration flows in the actuating winding 2 the inertia mass 5 is slowly moved aside and the circuit is closed.
Patent GB-1061606-A (GB)
Title: Improvements in or relating to photography
IPC: G03C5/39
Filed: 1965-06-25
Abstract: 1,061,606. Stabilizing developed photographic silver halide materials. FUJI SHASHIN FILM KUBUSHIKI KAISHA. June 25, 1965 [June 25, 1964], No. 27160/65. Heading G2C. An exposed and developed photographic silver halide material is stabilized by treatment with a stabilizing bath containing ammonium thiocyanate and/or an alkali metal thiocyanate and is then immersed in an aqueous solution containing 1 to 15 weight per cent of ammonium thiocyanate and/or an alkali metal thiocyanate, the concentration of the thiocyanate in the aqueous solution being lower than that in the stabilizing bath, and then drying the material. The treatment with the aqueous solution lowers the concentration of salts left in the photographic material, the tackiness and tendency of the image to fade being reduced. The material may then be glazed with a hot metal plate. The aqueous solution may also contain a fluorescent whitening agent, a noble metal salt, an organo-mercapto compound, a thiosulphate or potassium metabisulphite.
Patent GB-1080128-A (GB)
Title: Method of producing new nicotinic acid esters
IPC: C07D213/80
Filed: 1966-06-17
Abstract: Novel compounds of the formula <FORM:1080128/C2/1> wherein R1 and R2 together represent an oxygen atom, or R1 represents a methyl or ethyl group and R2 represents the group of the formula <FORM:1080128/C2/2> are prepared by reacting nicotinic acid, or a derivative thereof, with a polyhydric alcohol of the formula <FORM:1080128/C2/3> or a derivative thereof, wherein R3 and R4 together represent an oxygen atom or R3 represents a methyl or ethyl group and R4 represents a hydroxymethyl group.  Pharmaceutical compositions comprise a compound of the invention together with a pharmaceutically acceptable carrier.
Patent GB-260633-A (GB)
Title: Improvements in holders for dental drills and the like
IPC: A61C1/14
Filed: 1926-11-01
Abstract: 260,633. Deutsche Goldund Silber- Scheideanstalt vorm. Roessler. Nov. 2, 1925, [Convention date]. Dental and like engines. - In a holder for dental drilling &c. tools the drive of the spindle is braked or released and the replacement of the tool is rendered possible by a member which is movable in an axial direction only. The tool is mounted in a collet u, Fig. 2, and is secured in the holder v by a bevelled screw-cap w. The holder is inserted in a socket e, Fig. 1, on the driving spindle b and is retained in position by a cross-pin t, the drive being transmitted by engaging portions s, f on the holder and socket respectively. A sleeve o, axially slidable on the outer stationary sleeve a, carries pins p, q projecting through slots r in the sleeve a, the action being such that as the sleeve o is drawn backwards the pin q stops rotation of the spindle by engaging teeth m on a member k keyed to the driving spindle by a pin l, and the pin p engages a member i attached by a pin j to the projection f to withdraw it from the projections s and release the tool-holder. Springs g, n normally retain the parts in the forward position. The Specification as open to inspection under Sect. 91 (3) (a) states also that grinding tools may be carried in the holder. This subjectmatter does not appear in the Specification as accepted.
Patent GB-694196-A (GB)
Title: Improvements in or relating to thermally operated electrical switchgear
IPC: H01H37/66
Filed: 1950-11-09
Abstract: 694,196. Thermal switches. PARSONAGE, S. H. Nov. 9, 1951 [Nov. 9, 1950], No. 27399/50. Class 38(v) The switch comprises a part-helical or spiral bimetal element 17 carrying an armature 18 cooperating with a magnet 10, the latter and the armature being relatively adjustable and forming or being located adjacent the contacts, the bimetal being heated cyclically so as to obtain long-open, shortclosed, or short-open, long-closed, conditions of the contacts. The movable contact (not shown) is fixed to the armature 18 and co-operates with a contact 12 arranged between the poles of the magnet which is insulatingly carried by a stirrup 9 pivoted on a bolt 8 and urged against a manually-adjustable cam 20 by a spring 23. The bimetal 17 is secured to a shaft 15 which is secured to a bracket 14 by nuts 16 which provide for factory adjustment of the element 17. The shaft 15 and bolt 8 are connected to the supply and controlled apparatus respectively so that the element 17 is in series with the contacts and is heated by the current through them. Rotation of cam 20 adjusts the position of the magnet between two limiting positions, in one of which the contacts are open, the armature being prevented from following the magnet by engagement with a stop 25, and in the other of which the contacts are permanently closed, the stirrup 9 engaging a lug 26 connected to shaft 15 in order to short-circuit the bimetal. When the magnet is moved from the former position to the one in which the contacts first close, the armature is attracted towards the magnet to cause a slight winding-up-of the bimetal, which is stated to assist in producing the desired cyclical operation. The bimetal may be additionally or alternatively heated by an adjacent winding and may be attached to one end of a coiled bimetal carried by the shaft 15 so as to provide for ambient temperature compensation (Fig. 3, not shown). Adjustment of the magnet is said to cause a sliding, cleaning action between the closed contacts. In order to use the same parts for different purposes, a magnetic shunt may be provided for the magnet, and an electrical shunt for the element 17, which may however be increased in cross-section. If the bimetal becomes too rigid by virtue of such an increase, the armature may be attached by a spring to the bimetal. The magnet contact may be mounted on one limb of a U-shaped leaf spring, the other limb of which is secured to the magnet, thus preventing contact chatter.
Patent GB-674717-A (GB)
Title: Improvements in or relating to the preparation of ferrous chloride
IPC: C22B1/08
Filed: 1950-11-09
Abstract: Ferrous chloride is produced by treating iron-oxide containing material e.g. ore, flue dust, mill scale, in a first stage at 500-800 DEG F and in a second stage at 800-1200 DEG F with a gaseous mixture including hydrogen and hydrochloric acid, the composition of said mixture being controlled to give increasing proportions of hydrochloric acid say from above zero to 50 per cent by volume as the temperature increases.  Usually an upper limit of 15 per cent is employed.  Carbon monoxide, or inert gases, e.g. nitrogen, may also be present.  Continuously varying temperature and gas-composition conditions may be employed, e.g. by counter-current operation in a rotary kiln.  Preheating of the oxidic material may be effected in the kiln or as a separate operation.  Another type of apparatus is shown, whereby a stepwise change in reaction conditions obtains, consisting of eight reaction chamber schematically arranged in a circle and being suitably interconnected by valved pipes.  In this apparatus, the reaction proceeds in six of the chambers while one is being filled and the other emptied.  Each chamber thus in turn becomes the first of the six.
Patent GB-1211429-A (GB)
Title: Process and apparatus for electrically heating and controlling the temperature of thin layers
Inventor: KAMPF GUNTHER
IPC: G05D23/24
Filed: 1968-06-10
Abstract: 1,211,429. 429. Automatic temperature control systems. FARBENFABRIKEN BAYER A. G. June 10, 1968, No.27422/68. Heading G3R An arrangement for controlling the temperature of insulating material e.g. glass, porcelain, enamelled or oxidized metal, which has been plated or vapour coated with thin electrically conducting layers having resistance dependent upon temperature, comprises passing a heating current through the layer and simultaneously a measuring current which is electrically separate from and smaller than the heating current. The currents may be alternating and of differing frequencies. A D.C. source 4 may supply current to terminals 3 connected to the layer through a variable resistor 6 and an indicating or recording device 5. The measuring current is provided by an A.C. generator 8 also fed through an indicator or recorder 9, a resistor 10 and D.C. isolating capacitors 12. A fraction of the voltage across resistor 10 is compared with a reference 11 the difference controlling a servomotor M adjusting the value of resistor 6. The conducting layer may be arranged in a bridge circuit which may have a second layer in another arm. The latter arrangement may be used to compare the melting points of two substances one of which is known. The resistor 10 may be adjusted by a programme device. An object may be heated by interposition between layers having conductive coatings, see Fig. 5 (not shown) and the conductive layer may be coated with at least one protective layer. The layer may be optically transparent and may heat a part of an optical apparatus e.g. a microscope table or a spectroscope.