baber/WOPTO huggingface dataset:
Patent GB-706719-A (GB)
Title: Improvements in or relating to co-polymeric siloxanes and the application thereof
IPC: C08G77/00
Filed: 1951-07-27
Abstract: A copolymeric siloxane is made by reacting one or more silanes of the general formula RnSiX4-n and/or one or more polysiloxanes of the formula <FORM:0706719/IV (a)/1> , where R is an alkyl, monocyclic aryl or halogenated monocyclic aryl hydrocarbon radical, X is chlorine or alkoxy and n has a value of 1 to 3, the average degree of substitution of the silanes or polysiloxanes being from 2.1 to 3 R radicals per silicon atom, and at least 50 per cent. of the R radicals being alkyl, with a silica hydrosol in amount such that there is a total of at least 1 mol. of organosilicon compound per mol. of SiO2 in the hydrosol and under such conditions that the reaction mass has a pH of less than 5.  The hydrosol may be formed separately or in situ by reacting a chlorosilane with an alkali metal silicate, or separately by neutralising sodium silicate solution with an acid. The desired pH may be attained by addition of hydrochloric, sulphuric, nitric, phosphoric, benzene sulphonic or trichloracetic acid.  Reaction of the hydrosol with the organo-silicon compound(s), which may be effected in the presence of water-miscible solvents, e.g. fatty alcohols, dioxane, ketones and carboxylic acids or mixtures of water-soluble and water-insoluble solvents such as toluene, xylene and ether, proceeds rapidly at 30 DEG C. or above, usually with formation of an emulsion which on standing separates into two layers from which the copolymer is separated, purified and dried to yield products varying from viscous oils to thermoplastic resins.  Using this procedure in the examples, a silica hydrosol, made by reacting sodium silicate solution with hydrochloric acid or trimethylchlorosilane, was reacted with (1) trimethylchlorosilane, (2) dimethylphenylchlorosilane, (3) hexamethyldisiloxane, (4) trimethylethoxysilane, (5) the hydrolysate of ethyldimethylchlorosilane, (6) hexamethyldisiloxane and cyclic dimethylsiloxane, (7) trimethylchloro- and phenyltrichloro-silanes, (8) stearyltrichlorosilane, and (9) bis-chlorophenyltetramethyldisiloxane.  The copolymers are useful for waterproofing applications particularly leather, antiflotation of paint pigments, thickening liquid dimethylsiloxanes or for boot greases.  Solutions in solvents e.g. petroleum hydrocarbons, benzene, toluene and xylene are usually employed and may also contain other organosilicon polymers, e.g. liquid dimethylsiloxanes, methylphenylsiloxane resins, liquid methylphenylsiloxanes, stearylsilsesquioxane, butylmethylpolysilane, phenylmethylpolysilane and stearylmethylpolysilane, specific compositions being given in examples 10 to 14.
Patent GB-895043-A (GB)
Title: Mixing apparatus
IPC: B01F7/00
Filed: 1958-06-04
Abstract: 895,043. Mixing machines. MOBAY CHEMICAL CO. June 4, 1958 [June 5, 1957], No. 17886/58. Class 86. Mixing apparatus for the preparation of cellular and of homogeneous rubber-like polyurethane plastics comprises a mixing chamber I in which a two-part agitator is rotatably mounted, the part 2 of the agitator having a frusto-conical taper on which are tooth-like projections 6 and the surrounding part of the chamber being tapered accordingly. Furthermore the agitator has a frusto-conical part 3, placed base-to-base with the part 2. The part 3 has obliquely placed vanes 8, which pump the liquids to be mixed to the annular space around the part 2. Annular grooves 7 may be arranged at intervals around the part 2. An organic compound having at least two reactive H atoms, e.g. a polyester, a polyalkylene ether glycol, a polythioether glycol or a polyester amide, is introduced through an inlet 10 and an activator mixture or catalyst or polyisocyanate is injected through a nozzle 11 under a pressure substantially higher than the back pressure in chamber 1. More than one injection nozzle may be provided and the polyisocyanate and the activator mixture may be injected separately through separate nozzles. The clearance between the agitators and the chamber wall may be varied to compensate for differences in viscosity of the mixtures. To increase the clearance, spacer rings 13 are placed between the chamber 1 and its nozzle-carrying head 12. The rotor may have longitudinal grooves in addition to the annular grooves and there may be projections 16 on the chamber wall extending between the projections 6. Specifications 700,608, 700,609, 700,610 and 769,680 are referred to.
Patent GB-578126-A (GB)
Title: Control mechanism for apparatus operated by fluid under pressure
IPC: B60T15/04
Filed: 1943-10-29
Abstract: 578,126. Valve mechanism. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. (Bendix- Westinghouse Automotive Air Brake Co.). Oct. 29, 1943, No. 17900. [Class 135] In self-lapping fluid pressure control mechanisms for remote control in motor-vehicles, means comprising a permanent magnet are provided for maintaining the inlet valve in a wide open position until the pressure delivered to the actuator is equal to that for which the adjustable graduating spring has been set. As shown, the control system comprises a pressure reservoir 4, an actuator 5 and a self-lapping graduating valve mechanism. The latter comprises inlet and outlet chambers 12, 13 between which is a spring-returned valve 39, and a diaphragm chamber 14 separated from the outlet chamber by a partition 17 through which is a choke 18. The diaphragm 19 is attached to a valve-operating member 23 actuated through a graduating spring 26 by a plunger 22 operated by a pedal 30. The outlet chamber 13 is connected with the actuator 5 by a pipe 34, and with the atmosphere through a bore 35 and port 36 in the member 23, thence to an exhaust port 37. An exhaust valve 40 is connected by a stem 41 to the inlet valve 39 and is closed by downward movement of the member 23 on the actuation of the pedal. The inlet valve 39 is maintained wide open to permit an unrestricted flow to the actuator by means of a permanent magnet 43 and an armature 45 on the member 23; this condition persists until the pressure beneath the diaphragm builds up through the choke 18, when the spring 26 overcomes the strength of the magnet and closes the valve 39.
Patent GB-548041-A (GB)
Title: Improvements relating to swim suits
IPC: A41D7/00
Filed: 1940-12-19
Abstract: 548,041. Swim suits. KOPS BROS. (GREAT BRITAIN), Ltd., and MAYES, M. Dec. 19,1940. No. 17907. [Class 141] A swim suit comprises front and rear panels made of material which is inelastic at least horizontally, and side panels made of single pieces of material which is elastic at least horizontally. In the example shown, in which the suit is provided with a brassiere portion 1, the front and rear panels 2, 3 are made of cotton, silk, artificial silk, or wool, which is inelastic both horizontally and vertically, while side panels 4 are made of rubber or fabric having elastic warp and weft threads which is elastic both horizontally and vertically. The panels 2, 3 may, however, be elastic vertically, and the panels 4 inelastic vertically. The suit is provided with a crutch strap 6, and with shoulder straps 8 adapted to be brought down the back of the wearer and tied around the waist, being optionally threaded through lacing 10. Side lacing 7 may also be provided.
Patent GB-334619-A (GB)
Title: Improvements in or relating to the recovery of ammonia from coal gas and like industrial gases containing ammonia
IPC: C01C1/12
Filed: 1929-06-11
Abstract: 334,619. Gas Light & Coke Co., Hollings, H., Pexton, S., and Hutchison, W. K. June 11, 1929. Materials for purifying.-Ammonia is recovered from coal &c. gas by scrubbing it with weak ammoniacal liquor previously formed by cooling the gas and containing additional carbon dioxide free from ammonia. Gas from a retort 1 passes to a primary condenser 2 where it is cooled to 115-130‹ F., and thence to a final condenser 3, fan 4 and tar-extractor 5. The gas is washed at 6 with ammoniacal liquor from the condenser 2 which has been further cooled at 7 to about 60‹ F. and had carbon dioxide added at 8 from a pipe 9. Flue gas is added, or carbon dioxide from water gas, or from the coal gas previously treated by washing with potassium carbonate solution and then heating the potassium bicarbonate so formed to liberate the carbon dioxide. Effluent gas from carbonating chamber 8 is led by a pipe 10 to the outlet of the primary condenser 2. Specification 281,474 is referred to.
Patent GB-946949-A (GB)
Title: Improvements in or relating to combine harvesters
IPC: A01F12/50
Filed: 1961-05-17
Abstract: 946,949. Combine-harvesters. G. CLAAS. May 17, 1961 [July 14, 1960], No. 18037/61. Heading A1F. In a combine-harvester wherein the threshed grain is fed by an elevator 17 to a rotary separator 18, means are provided for selectively discharging grain from the separator either into the grain-tank 15 or into sacks (not shown). In Fig. 2 the means comprise one or more shoots 19 pivoted on an axle 20 on top of the grain-tank and tiltable to discharge into the grain-tank or into sacks secured to the ends 22 of the shoots opposite to the tank. In Fig. 3 a fixed double-shoot 25, 26 is provided the separator having a swingable discharge spout 28; a series of such shoots and spouts may be provided, and the grain-tank may be correspondingly compartmented.
Patent GB-197858-A (GB)
Title: Improved construction of sign for advertising and exhibition purposes
IPC: G09F7/00
Filed: 1922-06-30
Abstract: 197,858. Harrington, J. June 30, 1922. Signs; letters, numerals, and the like; supporting and securing.-A sign is constructed from several units, each comprising a sheet A of opaque, translucent, or semi-translucent glass enclosed in a frame H, and one or more letters or devices C of opaque or semi-opaque material having screws D which pass through holes B in the glass A and are secured by nuts F, resilient washers E preferably being interposed. The letters &c. C may be of metal, wood, composition, or opaque or semi-opaque glass. The framed sheets of glass are assembled in the front of a casing I which may be fitted with electric or other lamps. To prevent the escape of light between the frames H, a lip K is soldered to one edge of each frame or formed by bending back a part of the frame.
Patent GB-1260935-A (GB)
Title: Dynamoelectric machine having permanent magnet field poles
IPC: H02K21/04
Filed: 1969-04-09
Abstract: 1,260,935. Dynamo - electric machines. WESTINGHOUSE ELECTRIC CORP. 9 April, 1969 [6 May, 1968], No. 18131/69. Heading H2A. Permanent magnet poles 12 carry windings 20 which are excited through diode means proportionally to the armature current so as to produce a cumulative magneto-motive force in the poles which counteracts the demagnetizing effect of armature reaction 32. The diode means prevents the windings 20 acting in a demagnetizing manner on reversal of armature current and may comprise a rectifier bridge, Fig. 2 (not shown), across which the windings are connected. Alternatively, Fig. 3, each pole may carry a second, oppositely wound and parallel-connected winding 20A, the two sets of windings having oppositely connected diodes 38, 39 respectively in series therewith so that flow of current is permitted in either direction only through the winding that produces cumulative magnetization. The poles may be divided into two sections 12a, 12b, Fig. 4, either the section 12b which is subject to demagnetization in one direction of armature current being provided with a winding 20<SP>1</SP> or, both sections having windings which are oppositely wound and have series diodes connected thereto as in Fig. 3 to disable the winding producing demagnetization. The double windings may be connected in series with a blocking diode connected across each of them. Also, instead of being disposed on the shanks of the poles, the windings may be carried by the shoes 16.
Patent GB-146303-A (GB)
Title: Turntable for railway guns
IPC: F41A23/40
Filed: 1920-07-02
Abstract: 146,303. Krupp Akt.-Ges., F. May 21, 1918, [Convention date]. Turntables.-Consists in providing turntables for railway guns with a central member C which runs on an inner track E and has a cavity c<2> to provide free space for the breech end of the gun when firing at high angles of elevation. ' In the form shown in Fig. 1, the bridge of the turntable comprises side members A, B, the outer ends of which run on a track D, the inner ends being hinged to a central member C running on a ball race E. Rails F<1> on the member C are in line with rails F on the members A, B when the gun carriage is run on to the turntable with the gun in the horizontal position. To allow the breech end of the gun to pass into the cavity c<2>, the rails F<1> are attached. to a platform G adapted to be moved laterally on rails g<1>. In a modification, shown in plan in Fig. 4, the laterally moving platform is replaced by a rotary platform K carrying rails F<2> and a cavity c<2> for the gun breech. When the gun carriage is to be brought on to the turntable, the platform K is rotated to bring the rails F<2> into line with the rails F and the cavity c<2> is then bridged by rails loosely inserted between the rails F<2> or pivotally attached to one end thereof.
Patent GB-604220-A (GB)
Title: Improvements in or relating to filters
IPC: B01D29/15
Filed: 1945-07-17
Abstract: 604,220. Filters, BLOCK, M. July 17, 1945, No. 18245. Convention date, June 24, 1944. [Class 46] [Also in Group XXVIII] A filter for liquids or gases comprises a container with inlet and outlet openings and in which are placed bodies superposed or one inside another to leave between them fine passages, and formed with slots and surface grooves, the arrangement being such that fluid entering -the container passes through the slots and along the fine passages to the grooves which communicate with the outlet of the container. In the construction shown in Figs. 1 and 2, the filter element comprises superposed plates f pressed together by spring o, each plate being provided with slots g, and with grooves i on the upper face. The fluid enters through an inlet a passes up through the slots g and between each plate into the grooves i which lead to an outlet k. The plates may be slightly spaced from each other by means of wire around each plate near the corners. Fig. 7 shows a filter element comprising concentric tubes d' formed with slots e' and grooves n<SP>1</SP>. the fluid to be filtered flowing through the slots, into slits h<SP>1</SP> beween adjacent tubes. and along the grooves n' to the outlet. The tubes at one end are connected loosely by means of a pin k<SP>1</SP> passing through holes in the tubes into a plug j<SP>1</SP>. A spring l<SP>1</SP> engages the plug j<SP>1</SP> and a spring m<SP>1</SP> engages the outermost tube d<SP>1</SP>. In a modification the slots and grooves are transverse with respect to the longitudinal axis of the tubes.
Patent GB-449210-A (GB)
Title: Media for combating insect pests
IPC: A01N29/02
Filed: 1935-06-26
Abstract: An agent for combatting insect pests comprises ethylene dibromide and physiologically active halogenated (especially chlorinated) hydrocarbons, e.g. dichlorethylene, trichlorethylene, ethylenedichloride and methylene chloride. Carbon tetrachloride may be added to reduce inflammability and also a respiratory irritant such as chlorinated formic acid methyl ester.
Patent GB-904534-A (GB)
Title: Tool
Inventor: ANDREWS GEOFFREY FREDERICK
IPC: A43D95/28
Filed: 1960-05-24
Abstract: 904,534. Extracting and inserting nails. ANDREW PLASTICS Ltd. May 24, 1961 [May 24, 1960], No. 18369/60. Classes 17 (1) and 89 (3). [Also in Group XXIII] An apparatus for extracting from heel recesses dowels to which top lifts 23 are secured comprises a retractable carriage 7 which slides along a base 1, at one end of which there are two cross-bars 2, 3, the angle of which may be adjusted relative to the base, and between which the heel is placed. Adjustable jaws 13 are loosely mounted on the carriage 7 by means of a pin 14 and grip the top piece 23 to extract it when the carriage 7 is withdrawn by operation of a lever 9 slidably mounted on the carriage 7 by a pin 11 and a slot 12. Pawl teeth 10 provided at the end of the lever 9 engage with ratchet teeth 6 provided on the base 1. Withdrawal of the carriage 7 can be achieved by a pistol grip or treadle mechanism. The apparatus can also be used to insert dowels in heel recesses by inserting a pivotally-mounted abutment-plate 20 provided on the opposite end of the base to the cross-bars 2, 3 into the shoe and placing the top piece 23 in engagement with an indentation 19 formed on the face of the retractable carriage 7 opposite to the jaws 13 (see Fig. 2, not shown).
Patent GB-663675-A (GB)
Title: Improvements in or relating to devices for scratching or brushing the walls of bores
IPC: E21B37/02
Filed: 1949-07-12
Abstract: 663,675. Borehole scrapers. CASLAKE, J. March 13, 1950. [July 12, 1949] No. 18375/49. Class 85. To prepare the wall of a borehole prior to the cementing-in of the well casing, there is loosely positioned, between stops on said casing, a collar 1 that has secured thereto a circularly disposed series of stranded wire tines 2 which project outwardly from the collar to lie in a frusto-conical disposition thereto so that the outer free ends of the tines engage the wall of the bore. Each tine is disposed at an angle of between 30 and 70 degrees to the adjacent genetrix of the cone, the angle of which is between 20 and 60 degrees, and all the tines are inclined in the same direction. Two clips 5, 6 are secured on each tine to incline it in the correct direction. Specification 662,551 is referred to.
Patent GB-1425061-A (GB)
Title: Transport arrangement for pulverulent material
IPC: B65G21/20
Filed: 1973-04-17
Abstract: 1425061 Retaining material on conveyer belts by attractive action STANDARD TELEPHONES & CABLES Ltd 17 April 1973 18421/73 Heading B8A [Also in Division G2] Developing powder in a copying machine, is conveyed on a belt 3 by the aid of a second belt 1 which has a magnetically or electrostatically attractive action. According to the invention, the distance between the belts 1 and 3 is selectively variable by varying the position of pulleys 2e, 2d. In this way the depth of development of an image on a drum 5, may be varied.
Patent GB-1454762-A (GB)
Title: Thread tying apparatus
IPC: D03J3/00
Filed: 1973-09-05
Abstract: 1454762 Knotters T BABA 5 Sept 1973 18447/76 Divided out of 1454761 Heading D1C The invention relates to an apparatus for tying a knot in a plurality of parallel threads 13d, Fig. 4, the apparatus comprising an L- shaped tube 2d, one arm 1d of which extends to a suction source, there being means permitting the L-shaped tube 2d to rotate about the axis of the arm 1d. Fig. 4(1) shows how a plurality of parallel threads 13d to be knotted together pass through guides 11d and are then engaged by the right-angled bend of the tube 2d either by movement of the threads 13d from left to right as seen in the drawing or by movement of the tube 2d from right to left as indicated by the arrow. View 4(II) shows the situation when the tube has been rotated through about 120‹. The next position is shown by view 4(III) when the tube has rotated through 180‹ and the subsequent position by view 4(IV). Then, as shown in view 4(V), the ends of the threads 13d are sucked into the open end 3d of the tube. View 4(VI) shows the configuration of the threads at the end of a 360‹ rotation of the tube. The mechanism is then moved to the right as indicated by the arrow in view 4(VII), or alternatively the threads are pulled to the left, to complete the tying of the knot. The guide member 12d on the tube prevents the knot from sliding onto or forming on the arm 1d. The guides 11d can be dispensed with if the threads are moved into the tying position manually.
Patent GB-1122863-A (GB)
Title: Steroid 21-phosphates
IPC: C07J5/00
Filed: 1966-04-27
Abstract: Phosphates of pregnan-21-ols are prepared from the free ols and pyrophosphoryl chloride, with aqueous hydrolysis of the first-formed 21-dichlorophosphate. The starting steroid may not have any ring-unattached unprotected hydroxyl groups except that an 11-hydroxy group may be present when there is a 9-halo or 9-alkyl substituent. The products may be converted to their alkali metal salts, and protected hydrolyl groups may be released.
Patent GB-116072-A (GB)
Title: Method of Producing Tubular Elements having Peripheral Hook-shaped Lugs, and Product Produced thereby.
IPC: B21C37/15
Filed: 1917-12-13
Abstract: 116,072. De Camp & Sloan, (Assignees of Benson, H.). May 21, 1917, [Convention date]. Hooks.-The hook or lug 9, Fig. 4, may be formed on a tubular element 6, such as a sleeve for the mainspring of a spring motor, by a punch 18 passed through a previously-formed hole 7 and co-operating with a die 15. The hook may afterwards be finished by machinery.
Patent GB-313854-A (GB)
Title: Brake operating mechanism for motor vehicles
IPC: B60T13/06
Filed: 1929-06-17
Abstract: 313,854. Eclipse Machine Co., (Assignees of Ragan, F. H.). June 16, 1928, [Convention date]. Applied by running axle or wheel. - Brake operating mechanism for motor vehicles whereby the brakes are applied by a rotating member such as the driving shaft, comprises a pair of oppositely threaded nut members normally rotating with a threaded running shaft and means for retarding the rotation of the nuts to effect longitudinal movement thereof in opposite directions, and the application of the brakes by one or other of them according to the direction of rotation of the threaded shaft. A casing 13 with lugs 19 for bolting it to the gear box of the vehicle is provided with bearings 22, 24 for a shaft 29 driven from the driving shaft of the vehicle by the gear wheel 32. Right- and left-handed screw threads are formed on the shaft for engagement respectively with a pair of half nuts 34, 35 splined to a sleeve 36 to which is secured at one end a disc 37 faced with friction material for engagement with a plate 17 fixed to the casing 13. This engagement is effected by a forked arm 43 on a shaft 41 rocked by the control pedal through a link 46 and spring 48. A thrust bearing 51 freely slidable on the shaft 29 is interposed between the projecting ends 50 of the nut members and an arm 53 on a shaft 52 connected to the vehicle brakes by the linkage 54, 57, 60, 61. Normally the nut members 34, 35 and sleeve 36 rotate with the shaft 29, but the retardation of this rotation effected when the disc 37 is forced by the pedal against the fixed plate 17 causes the nuts to travel axially in opposite directions, and one or the other of them according to the direction of rotation of the shaft 29 is thrust against the bearing 51 and applies the brakes. The operative nut member tends to drag axially with it the sleeve 36 and thus to offer a resistance to the movement effected by the pedal which indicates to the operator the pressure applied to the brakes.