baber/WOPTO huggingface dataset:
Patent GB-710837-A (GB)
Title: Apparatus for mixing a gas with a liquid
Inventor: DERINGER HANS
IPC: B01F5/02
Filed: 1952-10-08
Abstract: 710,837. Aerating waste water. SULZER FRERES SOC. ANON. Oct. 8, 1952, No. 25190/52. Class 111. [Also in Groups VI, XII and XXVIII] Apparatus for aerating waste water in a biological purification process comprises an upwardly directed convergent-divergent nozzle through which the liquid flows, a horizontal gas inlet in the region of the nozzle throat and after the nozzle an unobstructed rising conduit having a flow cross-section greater than that of the nozzle outlet. A mixing tower comprises a liquid inlet chamber 1 separated from an upper chamber 6 by a double-walled partition 3 penetrated by a large number of convergent-divergent nozzles 4 and constituting a gas inlet space which is supplied from a pipe 7 and annular chamber 8. The nozzles may be rectangular or circular in cross-section and the throat suddenly widens between the lower and upper edges of the gas inlet slot 5. Liquid flows through the nozzles at at least 5 m. per sec. and, the cross-sectioned area of the upper chamber being at least 20 times the total area of the nozzle throats, the gasliquid mixture becomes turbulent until at some distance from the nozzles liquid is withdrawn through a pipe 13 the washed gas escaping through a pipe 12. A gas blower may supplement the suction action of the nozzles.
Patent GB-1253822-A (GB)
Title: Electromagnets
Inventor: DEW FRANK PHILLIP
IPC: H01H50/44
Filed: 1968-05-27
Abstract: 1,253,822. Electromagnetive switches. JOSEPH LUCAS (INDUSTRIES) Ltd. 14 May, 1969 [27 May, 1968], No. 25192/68. Heading H1N. The housing of an electromagnet includes an end cap 23 having an external terminal 33 electrically connected to a conductive pin 35 which engages a conductive socket member 29 which is electrically connected to one end of the winding of the electromagnet. The contactor shown has a contact bridge 45 biased away from fixed contacts 41, 42 mounted on the housing and engaged by the bridge when the plunger armature (not shown) of the electromagnet engages a push-rod 24 slidable in a polepiece 16. The electromagnet has operating and holding windings 25, 26 and the ends of the operating winding 25 are soldered to respective channel portions of terminal sockets 29 retained in projections 28 formed in the end flange 19 of the former 17 of the windings. One end of the holding winding 26 is also connected to one of the sockets 29 and the other end of this winding is soldered to a spring washer 21 in engagement with an end plate 14 held in a conductive housing 11.
Patent GB-221100-A (GB)
Title: Improvements in pneumatic tire valve
IPC: F16K15/20
Filed: 1923-10-10
Abstract: 221,100. Myers, F. Oct. 10, 1923. Tyre valves. - A tyre valve having a lift valve member normally held in engagement with a seat by a spring has means permanently associated with the valve casing adapted to cooperate with the valve spindle so that the valve member may be looked against its seat by rotating the valve spindle less than one complete turn. The resilient valve member 28 is supported by a collar 27 mounted on the flat valve spindle 22 and co-operates with a seat 29 secured in the outer end of a supplementary casing 6 adapted to be screwed into the valve casing secured to the inner tube. The supplementary casing is provided with a packing 9 housed in a recess 8 adapted to engage the top of the main casing and is formed with exterior faces to receive a wrench. The valve spindle is shouldered at 25 to engage a cam surface 20 on a tubular member 18 secured to the bottom of the supplementary casing so that when the spindle is rotated by means of a slotted projection on the valve cap, the valve member is forced to its seat. In the inflating position the shoulder 25 moves in a slot 19, a second shoulder 26 then intermittently engages the cam surface to act as a stop. The loading spring is arranged between the collar 27 and a projection 28 on the member 18.
Patent GB-1164825-A (GB)
Title: New N-Substituted Nitro-Anilines
Inventor: KALOPISSIS GREGOIRE
IPC: C07D209/48
Filed: 1966-07-29
Abstract: 1,164,825. Nitro dyes. L'OREAL. 29 July, 1966 [30 July, 1965 (2); 27 Jan., 1966; 4 July, 1966], No. 25277/68. Divided out of 1,164,824. Heading C4P. [Also in Division C2] Compounds of formula wherein R represents (i) a hydrogen atom or an alkyl radical of 1 to 4 carbon atoms, X represents a halogen atom, n is an integer from 2 to 6 inclusive; and A represents a substituted or unsubstituted nitrophenyl radical, substituted in para position relative to the radical by a radical of the formula NR<SP>1</SP>R<SP>11</SP> wherein R<SP>1</SP> and R<SP>11</SP> represents a hydrogen atom or an alkyl radical of 1 to 4 carbon atoms, may be used as hair dyes. They are members of a group of compounds which are used as intermediates in the preparation of nitro dyes (see Division C2).
Patent GB-1216732-A (GB)
Title: Retractable undercarriage for an aircraft
IPC: B64C25/14
Filed: 1968-05-27
Abstract: 1,216,732. Retractable undercarriages. MESSIER. 27 May, 1968 [29 May, 1967], No. 25319/68. Heading B7G. A retractable undercarriage has the mounting linkage designed so that on retraction the length of the undercarriage leg is first shortened and then lengthened. The undercarriage comprises a housing, 6, Fig. 1, a tube, 5, rotatable in the housing, but not axially movable with respect thereto, a shock absorber, 7, connected at one end to a wheel, 1, and at the other to a slider, 26, a bell-crank lever, 10, connected via a link, 28, to said slider and abutting the housing at 31 when the undercarriage is lowered, a rod, 20, articulated to the other limb of the bell-crank lever and at its other end by a cardan joint, 21, to a brace formed from two arms, 14, 15, and an hydraulic ram, 23.  In the " lowered " position, Fig. 1, the ram, 23, contains the whole linkage via the brace and ensures that abutments 30 and 31 remain in contact and provides the means to break the brace at pivot, 19, upon retraction. (For Figures see next page.)
Patent GB-1284537-A (GB)
Title: An improved transfusion device
Inventor: BENNETT ALAN EDWARD CURTIS
IPC: A61M5/158
Filed: 1968-09-19
Abstract: 1284537 Transfusing devices A E C BENNETT and M BEWICK 19 Sept 1969 [19 Sept 1968 19 May 1969] 44530/68 and 25421/69 Heading A5R A transfusing device comprises a body portion 11, having a through bore 13 communicating with a sleeve 12 projecting from one end of the body, and a secondary bore 15 extending into the body and communicating with a plurality of apertures 18 spaced along the wall of the sleeve 12. When a needle (20, Fig. 3) or a catheter 22, Fig. 4 is inserted through the through bore 13 and into a patient's blood vessel, the tip of the sleeve, and the outer end 14 of the through bore form seals around the catheter to enable anti-inflammatory liquid to be fed through the secondary bore and pass out of the apertures 18 to prevent inflammation of the surrounding tissues. In an alternative embodiment, (Fig. 5, not shown) the forward portion of the bore (30) is surrounded by a sleeve (32) with perforations (33) and sealed at its ends to define an annular passage into which the secondary bore (34) feeds directly. The outer ends of the tube (30) and secondary bore (34) are provided with lever fittings (35, 36).
Patent GB-428449-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B3/02
Filed: 1933-09-14
Abstract: 428,449. Photographic cameras. EBNER, A., 20, Klopstockstrasse, Stuttgart, Germany. Sept. 14, 1933, No. 25431. Convention date, Nov. 4, 1932. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 15, 1934.] [Class 98 (i)] A self-erecting camera of the hinged-baseboard type is characterized by wedge-actuated means for holding the erecting and looking levers rigidly in the open position, said means being preferably releasable by pressure of a single finger. As shown, the erecting mechanism comprises, on each side of the camera, a lever 7 pivoted at 8 to the body a and at 6 to one arm of a two-armed lever 4, which is itself pivotally mounted at 3 on a bracket 2 fixed to the hinged baseboard 1, and supports by its other arm the camera front on a pivot 5. The bracket 2 also carries on the same pivot 3 a locking lever 10 urged by one arm of a spring 11 whose other arm rests against an abutment on the lever 4. In the open position, a toe 31 on the locking lever 10 cooperates with a recess 9 on the end of the lever 1, and its upper end 32 engages a lug 33 on the camera front. The parts are rigidly secured in the open position by the action of a wedge 15 mounted on a member 12 which has a limited sliding movement on the baseboard 1 and is urged into securing position by a spring 13. At the end of the erecting movement, this wedge slides beneath the common pivot pin 6 of the levers 1 and 4 and urges it upwards. Before closing the camera, the slide 12 is pushed rearwards by the finger-piece 17 to remove the wedge from the pin 6.
Patent GB-208594-A (GB)
Title: Improvements in the construction of and driving arrangements for rolling mills
IPC: B21B35/06
Filed: 1922-09-20
Abstract: 208,594. English Electric Co., Ltd., Rothera, L., Carnegie, H. S., and Wilson, J. C. Sept. 20, 1922. Rolling.-In a rolling-mill two parallel horizontal main rolls 1, 2, or lines of rolls, are each driven through separate electric motors 5, 6 without positive control of the speed relation of the rolls during working except by the action of the metal being rolled. The armatures of the motors 5, 6 are connected in series and in order to avoid the instability of this arrangement when the mill is running light a non-positive mechanical coupling device may connect the two rolls. In Fig. 1 this coupling comprises a belt 9 passing over the sleeve 10 and pulley 11 and a jockey pulley may be used to maintain the belt at the required tension. In a modification, the coupling may comprise friction rollers mounted on the respective rolls. For mills with short passes these slipping couplings may be replaced by a spring device which permits small relative displacement during working. In further modifications, the mechanical coupling is dispensed with and stability is ensured by the electrical connections of the motor circuits. In Fig. 2 the armatures 5, 6 are connected in series with generator armatures 15, 16 and a third wire 21 is connected between the junctions 17, 19 and has a resistance such that a close speed relation is maintained between the motors during light running without preventing a different relation during rolling. In a modification, the resistance may be varied between a low value during light running and a higher value during working, or an automatic switch may be arranged to break the connection 21 during working. In another form, the third wire current is arranged to pass through the field windings of the motors as shown in Fig. 4. Thus if the motor 5 runs faster than the motor 6 a current flows in the wire 21 which weakens the field of the motor 5 and strengthens that of the motor 6. If one roll is of larger diameter than the other, the fields may be set so that the motor driving the smaller roll runs at a higher speed during light running so as to produce approximate equality in the peripheral speed of the rolls. Other modifications in the electrical stabilizing devices are described.
Patent GB-1178508-A (GB)
Title: Improvements in or relating to Power Take-Off Mechanism.
IPC: B60K17/28
Filed: 1968-05-28
Abstract: 1,178,508. Shaft couplings. INTERNATIONAL HARVESTER CO. 28 May, 1968 [7 June, 1967], No. 25443/68. Headings F2C, F2L and F2U. A tractor power take-off comprises a driven shaft 16 having internal splines engaged by a splined stub shaft 20 which is retained axially by detent balls 78 projected radially into a groove 68 in the driven shaft by a cam 82. The cam 82 can be shifted axially to release the stub shaft by acting on the end 96 of a stem 94 The stub shaft may be splined throughout its length for the attachment of an implement or the splines at each end may differ in number as required. The driven shaft 16 is coupled tc the tractor drive shaft 14 by an hydraulically engaged multi-plate clutch 18. The clutch is disengaged by a spring 52, and when the clutch is disengaged the shaft 16 is stationed by a friction brake 58 applied by a spring 60 Application of hydraulic pressure to engage the clutch also supplies pressure through a passage 64 to act on a face 62 of a piston 56 to release the brake.
Patent GB-338587-A (GB)
Title: Improvements in and relating to relay devices for giving strengthened movement to recording apparatus
IPC: G01D9/00
Filed: 1929-08-21
Abstract: 338,587. Hartung, C. A., and Walter, E. Aug. 21, 1929. Relay devices. - In a device for giving strengthened movement to recording apparatus, the primary disc a, directly responsive to movements of the pressure gauge or other measuring instrument, is periodically released from a brake 0 by a cam q and takes up a position which controls the subsequent movement of an independently mounted feeler disc c when the latter is freed by a cam i, and rotated by a weight f. A third independently mounted disc t is positioned when its brake p is released by a cam r, by the feeler disc d, the disc l being rotated by the recording element n, which is then held in position until the next adjustment of the feeler disc takes place. The discs have co-operating abutments b, d, e, m. The cam shaft k is rotated uniformly by a motor.
Patent GB-1305347-A (GB)
IPC: F16F9/44
Filed: 1971-04-19
Abstract: 1305347 Shock absorbers; pipe supports; valves GRINNELL CORP 19 April 1971 [25 March 1970 16 Oct 1970] 25225/71 Heading F2P F2S and F2V In an hydraulic piston-and-cylinder shockabsorber for supporting a pipe (22, Fig. 1, not shown), a valve 110, Fig. 7, held open by a spring 120, closes on to a conical seat when the rate of flow from the cylinder 4, Fig. 2, reaches a certain value, there being a second such valve 110a for flow in the opposite direction. When the valve 110 closes due to increased flow from the line 8, the compressible fluid passes via a valve 204 adjusted by a graduated knob. The valve has a V-notch 250 which may be closed off completely or locked by a screw (255) in its adjusted position. The spring pressure 120 is adjusted by a screw 126. The normal flow path is 8, 31, 110, 85, 87, 33 and either 50 to a reservoir 12 or 81a, 87a, 110a, 35, 10. When the valve 110 is closed the path is 8, 31, 208, 229, 250, 206, 210, 35, 10. Similar paths occur in the opposite direction of movement. In a modification, two needle valves replace the valve 204 for separate adjustment of the reverse flows. The valve element 110 has a frusto-conical seating surface and a hexagonal radially outer surface (Fig. 5, not shown).
Patent GB-322014-A (GB)
Title: Improvements in wind-screen wipers and the like
IPC: B60S1/18
Filed: 1928-09-07
Abstract: 322,014. Stuart, M., Stuart, R. M., and Stuart, F. R., (Executors of Stuart, 0.). Sept. 7, 1928. Windows, cleaning.-The wiper is carried across the surface to be cleaned by a travelling nut 6 engaging the screw thread of a hollow spindle 1. At each end of the traverse, the nut 6 impinges against a collar 19 on a sleeve 15 and moves a spindle 5 sliding within the spindle 1, so as to move a clutch 13 from engagement with a driving wheel 10 to engagement with a driving wheel 11, thereby reversing the direction of rotation of the threaded spindle 1. To ensure that the clutch will always be in engagement with one or other of the bevel wheels 10, 11, a toggle lever system 23, 24 &c., is used. The levers 23, 24 are jointed at 25 to a crosshead on the end of the sliding spindle 5. The outer ends of the levers are pivoted to links 26, 27 pivoted to a bracket 2. A spiral spring extends between the outer ends of the levers 23, 24. To ensure that the clutch shall not begin to move until the toggle levers are on or approaching their dead centre, a certain amount of lost motion in the sliding spindle 5 is provided by slotting it as at 29. In this way a cotter pin 21 connecting the clutch 13 to the sliding spindle is not at once acted on by the spindle. In a modification, Fig. 4, which is cheaper to make, the sliding spindle 5 need not rotate with the threaded spindle. The sliding spindle is made with three reduced portions 30 on each of which is a split collar 31. The sliding sleeve 15, as well as the clutch 13, are each provided with set pins 32, the reduced ends of which pass through the respective slots 22 &c. in the hollow threaded spindle 1, and take into a hole 33 in the split collars which are slidable and rotatable on the reduced parts 30 of the spindle 5. This form also dispenses with the necessity of slotting the spindle for the collars mentioned above.
Patent GB-374720-A (GB)
Title: An improved method of tamping drill holes for blasting purposes
IPC: F42D1/08
Filed: 1931-09-14
Abstract: 374,720. Tamping boreholes for blasting. L€MMERT, A., 137, Bonnertalweg, Bonn-on-Rhine, Germany. Sept. 14, 1931, No. 25699. Convention date, Sept. 20, 1930. [Class 9 (i).] In tamping a borehole for blasting, a rod 3 is placed in the borehole to reach to the charge 1 at a position away from the detonator 2 so that in case of a missfire the rod may be removed and a fresh detonator inserted through the separate channel left by the rod in the tamping 5 without danger from the first detonator. If the tamping does not extend to the mouth of the borehole, the empty mouth may be filled by a collar in one or more pieces through which a hole is formed for the rod 3. After the insertion of the fresh detonator the end of the channel may be sealed by a clay plug, or the wires leading to the detonator may pass through a wooden rod or be otherwise embedded in a device forming a tight fit in the tamping.
Patent GB-335692-A (GB)
Title: Improvements in or relating to driving arrangements for self-propelled rail or road vehicles
IPC: H02P9/00
Filed: 1929-08-26
Abstract: 335,692. Beardmore & Co., Ltd., W., and Bush, H. D. Aug. 26, 1929. Dynamos and motors combined for transmitting power; regulation, automatic.-The field of an engine-driven generator which has series and separately excited windings in opposition, and which supplies traction motors, is regulated so that the load on the engine is approximately constant at all vehicle speeds. In the form shown, a resistance E in series with the separately excited field B2 of the locomotive generator B is varied by a governor F from a small value at starting up to a maximum value at a train speed corresponding to the peak load value and is then decreased to a small value at the normal running speed. As the windings B1 and B2 are in opposition, the output of the generator which supplies the motors C will then be approximately constant. The winding B2 is supplied at substantially constant voltage from an exciter D and/or a battery. The resistance and tappings may be modified so that in addition they may be varied by the engine governor. Relays may be interposed between the governor operated arm and the resistance. As an alternative to the governor, th resistance may be varied by a piston which moves in accordance with the pressure on the discharge side of a pump driven from the vehicle road wheels.
Patent GB-171002-A (GB)
Title: Improvements in or relating to handle grips for cycle handle bars or the like
IPC: B62K21/26
Filed: 1920-09-08
Abstract: 171,002. Dover, H. W. Sept. 8, 1920. Handles.-A hand-grip for cycle handle-bars of the type comprising a shell or casing k of celluloid, exonite, &c. and a filling or lining m of cement, fibrous composition, &c. is strengthened by a tubular sheet-metal reinforcement a, preferably perforated, and closed at one end by a disc f adapted to support the end portion or cap h of the shell. The reinforcement a may be bent from a sheet, the contiguous edges being then secured together by U-shaped clips d. The grip may have an internal paper lining n. The disc f and cap h may be domed, and the outer end of the reinforcement a may be serrated, the serrations being bent to lie against the inner surface of the disc f, to which they are soldered. Specification 15766/03 is referred to.
Patent GB-1534661-A (GB)
Title: Deoxygenation of water
IPC: C02F1/20
Filed: 1977-06-21
Abstract: 1534661 Deoxygenating water LUMMUS CO 21 June 1977 [22 June 1976] 25912/77 Heading B1M Water is deoxygenated by stripping with nitrogen, and fractionating recovered oxygen/ nitogen possibly together with steam to obtain nitrogen which is used for further stripping.
Patent GB-1354989-A (GB)
Title: Compositions for stabilizing solutions of peroxy compounds
IPC: D06L3/02
Filed: 1972-06-02
Abstract: 1354989 Stabilised bleaching compositions for organic materials MONSANTO CO 2 June 1972 [3 June 1971 (3)] 25941/72 Heading D1P A stabilising agent for reducing the decomposition of a peroxy compound comprises (a) 1-hydroxy ethylidene-1, I diphosphonic acid or water-soluble salt thereof, (b) nitrilotriacetic acid or a water-soluble salt thereof and (c) a water soluble salt which is a magnesium salt or a calcium salt. Preferably the mole ratio (a) to (b) to (c) is from 1:1:1 to 1:5:3. Alternatively the calcium or magnesium salt may be of acid (a) or acid (b). The agent is used at a concentration of 0.001 to 5% by weight to stabilise aqueous solutions containing 0.01 to 5% by weight of hydrogen peroxide, sodium peroxide, potassium peroxide, urea percompounds, perborates, persulphates, persulphuric acid, peracetic acid, peroxy monophosphoric acid or the sodium, potassium, ammonium or organic amine salts of the above peracids. The solutions also contain sodium silicate and are used to bleach textile materials at a temperature of 20C to 300F for 20 seconds to 36 hours at a pH of 7.5 to 12.5. Fluorescent brighteners and surfactants / wetting agents may also be included. A dry mixture of perborate and stabiliser is conveniently stored. It is suggested that metal ions such as ferrous which would decompose the peroxide are trapped by a magnesium and or calcium silicate complex. The function of the first two components of the stabiliser is to prevent precipitation of the silicate. The textile material may comprise fibres of cotton, hemp, jute, linen, viscose rayon, nylon, polyester or blends thereof. The stabilisation of the peroxide against metal ion catalysed decomposition to oxygen protects cellulose fibres against attack by oxygen in the alkaline media. The treatment of the textile may involve the steps of singeing, de-sizing, scouring, bleaching with an alkaline aqueous solution containing an alkali metal silicate and the stabiliser, scouring, mercerizing and dyeing or printing.
Patent GB-386714-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: H02P5/50
Filed: 1931-09-16
Abstract: 386,714. Maintaining proportional speeds. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) Sept. 16, 1931, No. 25960. Convention date, Sept. 18, 1930. Drawings to Specification. [Class 38 (iii).] In a multi-motor drive for paper-making machines, the motors of the first or second drying group are provided with speed equalizing devices, but the motors of the intermediate drives are operated without such devices. The speed equalizing devices may be of the electrical differential type, with coned pulley drives. Some or all of the motors which have no speed equalizing devices are compound wound, and may be provided with adjustable field resistances. The tension adjusting means of the calender speed regulating device may be driven by a motor controlled by a relay responsive to the armature and field currents of the motor driving the first or second drying group.