baber/WOPTO huggingface dataset:
Patent GB-971569-A (GB)
Title: Improvements in or relating to organosilanes and their preparation
IPC: C07F7/08
Filed: 1962-07-23
Abstract: Organosilane ethers of general formula (R)nSi(CH2-O-R1)4- n wherein n is 1, 2 or 3 R is hydrogen, alkyl, cycloalkyl, aryl or aralkyl and R1 is alkyl, cycloalkyl, aryl or aralkyl, are prepared by reacting in organohalosilane (R)nSi(X)4- n where X is halogen, with a chloromethyl ether ClCH2-O-R1 and magnesium in, as reaction medium, tetrahydrofuran or tetrahydropyran or homologues thereof and subsequently hydrolysing the product of the reaction. The magnesium is preferably activated by partial amalgamation with mercury, e.g. by treatment with mercuric chloride. Preferably R and R1 are alkyl having 1 to 4 carbon atoms, cyclopentyl, methylcyclopentyl, cyclohexyl, methylcyclohexyl, phenyl, lower alkyl phenyl and benzyl. In practice, in portion of the chloromethyl ether is added to a solution of magnesium in the solvent medium and when reaction has begun, excess chloromethyl ether and the organohalosilane are then added keeping the temperature at 15 DEG  to 25 DEG C. The reaction product is then hydrolysed by water, dilute mineral acid or ammonium salt solution and subsequently isolated.  Organosilane ethers thus prepared may be converted to the corresponding chloromethylorganosilane by reaction with acetyl chloride and zinc chloride and then converted by known methods into alcohols of the type RnSi(CH2OH)4- n.  The examples describe (1) reaction of chloromethoxyethane and dimethyldichlorosilane in tetrahydrofuran in presence of magnesium activated with mercuric chloride to produce bis (ethoxymethyl) dimethylsilane which is converted to bis (chloromethyl) dimethylsilane by acetyl chloride and zinc chloride; (2) preparation of bis (ethoxymethyl) methyl propysilane and the conversion to the bis (chloromethyl) methyl propyl silane which is reacted with potassium acetate and acetic acid to form bis (acetoxymethyl) methyl propyl silane which on alcoholysis with methanol and trace hydrochloric acid gives bis (hydroxymethyl) methyl propyl silane.  Other examples given are the reactions of methyltrichlorosilane and chloromethoxyethane to produce tri (ethoxymethyl) methyl silane; (4) chloromethoxyethane and diphenyldichlorosilane to produce bis (ethoxymethyl) diphenylsilane; (5) benzyloxymethylchloride and diphenyldichlorosilane to produce bis (benzyloxymethyl) diphenylsilane; (6) ethoxymethyl chloride and n-propyltrichlorosilane to produce tris (ethonylmethyl) n-propylsilane; (7) ethoxymethylchloride and methyldichlorosilane to produce bis (ethoxymethyl) methylsilane; (8) methoxymethylchloride and dimethylbenzylchlorosilane to produce (ethoxymethyl)-dimethyl benzylsilane and (9) ethoxymethylchloride and cyclohexyltrichlorosilane to produce tris (ethoxymethyl) cyclohexylsilane.  Specification 657,443 is referred to.
Patent GB-808195-A (GB)
Title: Improvements in apparatus for treating textile material in web-form
IPC: D06B3/16
Filed: 1956-09-17
Abstract: <PICT:0808195/IV (c)/1> Several adjacent webs, or a single fabric in open width form fed from a bleaching bath (not shown), may be passed into a pretreatment e.g. steam heating chamber 4 and then to a folder 12 which folds the fabric into an entry box 1 and deposits the folds upon conveyer belts or rollers operating at different individually adjustable peripheral speeds in a tunnel 3, the fabric being extracted through a box 2.  Treatment steam may enter through a pipe 24 under a deflector 25, and leave the apparatus through a pipe 29, and additional liquid or gaseous treatment media can if necessary be supplied and withdrawn through a pipe 30.  The end conveyers 16-18 are moved at a greater speed than the conveyer 15 in order that the edges 19 of folds may move quicker than their opposite edges so that the folding be arranged vertically or horizontally in the chambers 1, 2 and 3 respectively.  By arranging several such apparatuses in series, combined treatments such as de-sizing, washing, bleaching may be carried out.  A particular arrangement of rollers in Fig. 2 (not shown), moves the fabric folds a little rearwardly when they enter the extractor box 2 which prevents them from rubbing against the sides of the apparatus when they are moved into their pre-extraction horizontal positions.
Patent GB-504279-A (GB)
Title: Improvements in machines or appliances for draining land
IPC: E02F5/10
Filed: 1937-10-19
Abstract: 504,279. Draining land. ONIONS, Z., and BRADSHAW, E. Oct. 19, 1937, Nos. 28494/37 and 10434/38. [Class 6 (i)] A machine for cutting deep . but narrow slits or channels to be filled with gravel &c. comprises two or more cutters spaced transversely about 2 ins. apart and having a cutting depth equal to five or six times the spacing, and additional means for removing the soil between the cuts and conveying it to the surface. The machine may have several pairs of rotary cutters 15, 18, 19, 27, 28 of different diameter for cutting the channel in two or more stages, some of the cutters being staggered. The soil cut by the cutters 18, 19 is removed by a horizontal share 26 carried by an inclined plate 21 having its end bent to throw the soil to one side, plates such as 23b consolidating the walls of the trench. A similar share and plate 123 follows the cutter 28. A mole cutter to form an enlarged conduit at the base of the channel may follow the member 123. The cutters and inclined plates are carried by a pair of angleirons 10b forming a sled-like frame provided with transport wheels 37b carried by stub axles in a yoke 34, Fig. 4, of inverted-U-shape, the yoke being carried by arms pivoted to the. angle-irons 10b, and the arrangement being such that a hook 41 carried by one angle-iron hooks over a cross-bar 35 on the yoke. The machine may be combined with means 32 for filling the channel with gravel. Specification 494,732 is referred to. The first Provisional Specification describes a machine in which the mole boring member is carried at the lower ends of two plates which cut the vertical part of the channel, and in which the, inclined member for conveying the soil to the surface is followed by a V-shaped coulter to consolidate the walls of the channel. The second Provisional Specification describes a modified machine in which the mole borer is inclined downwardly- and carries at its rear end a pivoted bell-shaped member to consolidate the walls of the mole channel, additional plates consolidating the vertical walls of the channel.
Patent GB-913643-A (GB)
Title: Method of and apparatus for coating
IPC: B05D1/32
Filed: 1959-02-04
Abstract: A device for holding an article that is to be heated and partly coated with a coating material comprises a holder having a masking section having an area corresponding to at least the area of the said article that is to be masked, the surface of the masking section and the surface of the holder adjacent to the masking section being formed of high-temperature-resistant polymeric material of the class consisting of organic polymers and silicones, and means for exerting forces at the boundary line between said holder and said article to keep the article in firm contact with the holder during the coating. The surfaces may be made of polytetrafluoroethylene, a chlorinated polyether, or a silicone rubber.  Specifications 759,214 and 913,641 also are referred to.
Patent GB-248087-A (GB)
Title: A new method of measuring variations in the strength of received wireless signals
IPC: G01R29/08
Filed: 1924-11-29
Abstract: 248,087. Littledale, H. A. P. Nov. 29, 1924. Telephonic repeaters for use in selecting a desired note in wireless reception comprise a telephone 4 energized by the rectified received currents coupled to a second telephone 6 by an air resonator tube 5. The tube is adjustable in length, and is closed at each end by the telephone diaphragms. Several such repeaters may be used in cascade.
Patent GB-262745-A (GB)
Title: Improved method of drying damp rooms and buildings
IPC: E04B1/70
Filed: 1926-11-13
Abstract: 262,745. Wagner, A. Dec. 8, 1925, [Convention date]. Drying buildings.-Damp rooms, buildings, &c. are dried by supplying from the exterior a flow of heated air at a pressure higher than atmospheric. The air is supplied by a pipe c communicating with a blower b, the inlet of which is connected with a firegrate e. A return pipe d may be provided, the air being re-admitted to the fireplace. The air is mixed with flue gases from the heater and the carbon dioxide in such gases expedites the setting of the wall &c. plaster. The Specification as open to inspection under Sect. 91 (3) (a) refers to the addition of carbon dioxide to the air under pressure. This subjectmatter does not appear in the Specification as accepted.
Patent GB-690811-A (GB)
Title: Improvements in or relating to hand-trucks, trolleys and the like
IPC: B62B1/04
Filed: 1949-11-09
Abstract: 690,811. Hand trucks. BROWN, H. HORAN-. Nov. 13, 1950 [Nov. 9, 1949], No. 28680/49. Class 108 (i). A hand truck or golf bag carrier, for transporting personal luggage such as golf bags, comprises a channel sectioned metal framework in the form of a platform 1 and a back support 2 to which the golf bag &c. may be strapped, wheel-carrying legs 3, a handle 13, and a foot support 12. The legs 3 are pivotally secured at 4 to one part of a hinge 5 so that they may be pivoted in planes parallel to and at right angles to the support 2. The legs are connected by toggle links 9, and hooked arms 10 are provided to engage over the links when they are in alignment. A catch on one link engages the other link to prevent them from moving below the horizontal. The handle 13 is pivoted to a bracket 14 and may be maintained in an operative position by a pin 15 for insertion in one of a series of holes 16. The handle may, however, be held by a wing-nut and washer, and a locking device may be provided for securing the rest 12 in the lowered or raised position.
Patent GB-386735-A (GB)
Title: Improvements in extensible garment hanging fittings for wardrobes and the like
IPC: A47B61/02
Filed: 1931-10-16
Abstract: 386,735. Garment racks. EVERITT, J., 5, Green Terrace, Rosebery Avenue, London. Oct. 16, 1931, Nos. 28749/31 and 19757/32. [Class 52 (v).] Relates to an extensible garment-hanging fitting for wardrobes &c., of the kind in which a garment-supporting bar c is slidably mounted at its inner end on a horizontal guide rail a by a roller c<2> engaging the upper side of the rail and a roller or abutment c<4> engaging the underside of the rail, the arrangement being such that the free end of the bar can be raised to remove the roller or abutment from the underside of the rail so that the bar can be moved with the upper roller only engaging the rail. According to the present invention the inner end of the bar c is bent upwardly to form the abutment c<4>. In the construction shown the bar c is telescopic.
Patent GB-766117-A (GB)
Title: Wrist watch guard
IPC: G04B37/00
Filed: 1955-10-10
Abstract: 766,117. Attaching wrist watch protectors. SPENCER, E. A. Feb. 14, 1956 [Oct. 10, 1955], No. 28754/55. Class 43. [Also in Group XVIII] A wrist watch protector comprises a cupshaped or domed transparent one piece member G, Fig. 1, having two oppositely disposed slots through which pass the watch straps, the member being sufficiently wide as to cover the winding button.
Patent GB-1081824-A (GB)
Title: Disc type clutch assembly
IPC: F16D13/38
Filed: 1965-07-07
Abstract: 1,081,824. Friction clutches. BORGWARNER CORPORATION. July 7, 1965 [July 15, 1964], No. 28852/65. Heading F2C. In a friction clutch having one or more driven discs 16, 18 normally clamped between a lock plate and a presser plate 14 by springs 60 and released by levers 30, wear plates 52 are interposed between radial lugs 46, 48 on an intermediate plate 12 and the presser plate 14 and the sides of a slat 50 in a cover-plate 32 through which the lugs 46, 48 project. The wear plates 52 have locating projections 54, 56, 58 which engage the cover 32 to prevent axial and radial movement of the plates.
Patent GB-248092-A (GB)
Title: Improvements in or relating to motor and other vehicles
IPC: B60N3/00
Filed: 1924-12-02
Abstract: 248,092. Gillies, H. D. Dec. 2, 1924. Luggage holders.-In a motor vehicle, the seat backs 1, which may be utilized as tables are provided with a part 12 adapted to serve a a locker.
Patent GB-735458-A (GB)
Title: Improvements in method of and apparatus for feeding thermoplastic material
IPC: B05B7/18
Filed: 1952-11-17
Abstract: 735,458. Spray-producers. BRENNAN, J. B. Nov. 17, 1952, No. 28974/52. Class 69 (3). Thermoplastic material in rod &c. form 15 is forced by rollers 24 through a guide 14 and against a heated end cap 16, and a cooling tube 26 near the entrance end of the apparatus maintains the rod solid at that position. The apparatus is in two main parts 11, 12, bolted together, and the cap 16, which melts the end of the rod, is heated by high frequency coils 19, 20, and the molten material passes through apertures 17 and is sprayed by a gas, e.g. carbon dioxide fed to the device at 23. When the rod &c. is of metal an induction heating coil 27, located around a liner 127 retains the sprayed particles at an elevated temperature, and when non-conductive material is sprayed the coil 27 may be replaced by condenser plates. The coils 19, 20, 27 may be hollow for the passage of cooling fluid. Alternatively the cap. 16 is heated by an electrical resistance heater.
Patent GB-913510-A (GB)
Title: Improvements in plug and socket connectors for electric cables
IPC: H01R13/20
Filed: 1961-08-11
Abstract: 913,510. Two-part couplings. NEIDECKER, P. R., and BENZ, R., [trading as MULTICONTACT NEIDECKER & CO.]. Aug. 11, 1961 [Aug. 11, 1960], No. 29060/61. Class 38 (1). A plug-and-socket connector for electric cables has a locking-device comprising a conical arrangement of spring fingers 3, on one connector, which protrude into an annular groove 5, on the other, said groove 5 containing a ring 6 free to slide across the groove 5. The plug is inserted so that the fingers enter the groove 5 and cannot be withdrawn until it is further inserted so that the fingers 3 pass on to the ring 6. Spring contact members 9 are preferably held by means 10 which also holds the spring fingers 3 which are preferably formed by notching a conical ring. As shown, the groove is formed on the plug 2 but it may be formed on a projection on the base of the socket 1 which enters a recess in the end of the plug carrying the fingers (Fig. 3, not shown).
Patent GB-653398-A (GB)
Title: Improvements in or relating to amplifying circuits embodying valves employing secondary electron emission
Inventor: IBBOTSON HENRY
IPC: H01J43/02
Filed: 1947-10-31
Abstract: 653,398. Electron multipliers. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Oct. 31, 1947, No. 29063. [Class 40 (vi)] In an amplifier using an electron multiplier, in which the secondary emission electrode 6 requires a positive potential for operation but passes a negative current and the working potential is derived from the current flowing in a load impedance 18, operation is initiated from a source of positive potential over a device such as a gas-discharge tube 19. The current in the tube is discontinued or substantially reduced when the current in the load 18 is sufficient to maintain the electrode at working potential. As shown, the valve 1, which may be of the type described in Specification 601,966, [Group XL (a)], comprises an H.F. amplifying stage in a television receiver, in which the secondary-emission electrodes of similar preceding stages are also connected to the load 18 via lead 33. The load 18 is utilized as a source of positive potential for an amplifying stage 27, line and frame oscillators 31, 32, a sound reproducer 25 and by means of an adjustable tap, as a source of bias potential for the control electrode of the tube 29. The starting device may alternatively comprise a condenser, Fig. 2 (not shown), the time-constant with the load 18 being made long enough to maintain the secondary emission electrodes at a positive potential until the working condition is attained.
Patent GB-1482262-A (GB)
Title: Air filtering apparatus
IPC: F24F8/108
Filed: 1974-07-01
Abstract: 1482262 Air filter DRAGERWERK AG 1 July 1974 [30 June 1973] 29172/74 Addition to 1382820 Heading B1T [Also in Division F4] An air filter having an ultraviolet radiator 5 for irradiating a bacteria removing filter element 3a comprising a means by which the UV radiator may be monitored (e.g. a window of quartz 29 and/or 25) through which an ultra-violet measuring device may monitor the output of the ultra violet radiator(s) 5.
Patent GB-210162-A (GB)
Title: An improved calculator for power transmission belting
IPC: G06G1/12
Filed: 1922-10-26
Abstract: 210,162. Tullis & Son, Ltd., J., and Tullis, H. P. Oct. 26, 1922. Slide rules for powertransmission belting comprise a straight or circular body or stock and a slide or disc having logarithmic scales graduated respectively in terms of linear belt speed, horse power transmitted, and width of belting The rule is marked for belting of various kinds and plies so that the corresponding widths of all of these can be found simultaneously. The reverse side may be provided with scales graduated in terms of pulley diameter, belt speed, and revolutions per unit of time. The body or stock A is formed with a longitudial slot in which the slide B moves. Scales a, b on the body are graduated respectively in terms of belt speed in feet per minute and width of belt in inches. A scale c on the upper edge of the slide is graduated in terms of horse power transmitted, and on the lower edge are indices for different kinds and plies of belting. The scales are based on the fact that, within limits, the horse power transmitted by leather or balata belting varies directly as the speed and width of the belt, it being taken as a standard that a single leather belt one inch wide travelling at 1000 feet per minute with a minimum arc of contact with the pulleys of 180‹ will transmit 1.5 h.p., a double belt 2.4 h.p., and a balata belt of three, four, five, six, seven, eight, nine, and ten plies 1.21 h.p., 1.81 h.p., 2.42 h.p., 3.03 h.p., 3.63 h.p., 4.24 h.p., 4.84 h.p., and 5.44 h.p. respectively. When the horse power to be transmitted is set opposite the belt speed, the widths for the different kinds of belting will be opposite the corresponding indices. For the purpose of solving the equation : Belt speed = A x diameter of pulley x revolutions per unit of time, the reverse side of the body A is graduated in terms of belt speed in feet per minute and pulley diameter in inches, and the reverse side of the slide B in terms of revolutions per minute. Specification 6680/91 is referred to.
Patent GB-332819-A (GB)
Title: Improvements in or relating to telephone and telegraph cables
IPC: H01B11/00
Filed: 1929-09-26
Abstract: 332,819. Siemens Schuckertwerke Akt.-Ges. Oct. 5, 1928, [Convention date]. Continuously - loaded cables.-A telephone or telegraph cable comprises a conductor covered with magnetic bands having a pitch of about fifteen or more times the core diameter. The bands may be in layers with any direction of rotation of the pitch. A binding band or wire of insulating, conducting or magnetic material may be arranged over the magnetic bands. In the construction shown in Fig. 1, a copper conductor 1 is surrounded by magnetic bands 2 which are spun in opposite directions with great pitch round the conductor 1, a binding member 4 holding the bands 2, 3 in position, In a modified construction shown in Fig. 2, a copper conductor 5 is surrounded by magnetic bands 6, 7, held in position by a round cord binding member 8 fitted under the standard paper covering 9.
Patent GB-249441-A (GB)
Title: Improvements in helmets and other like head coverings
IPC: A42B3/14
Filed: 1925-11-19
Abstract: 249,441. Hobson, H. T., and Helmets Ltd. Nov. 19, 1925. Sweat bands; ventilating. - A helmet is provided with a head band detachably secured to the helmet by pressstuds, the head band being provided with upstanding tongues 6 each carrying one part 8 of a pressstud for engagement with a cornplementary part 11 carried by a suspension strap 9 secured to the helmet. The straps 9 may be so secured that they may be swivelled inwards into the crown of the helmet after removal of the head band, for packing one helmet into another. The tongues 6 are carried by a stiff band 2 to which is sewn a soft leather band 3 to which is sewn an openwork lining 4. Spaced above the band 3 is a second soft leather band 5. Resilient bow-shaped distance-pieces of gossamer covered with fabric may be secured to the band 2 at the sides of the helmet, between the 'band and the helmet, and the usual chin strap may be secured to these distance pieces.
Patent GB-718247-A (GB)
Title: Improvements in or relating to aircraft servo systems
Inventor: SEDGFIELD HUGH BROUGHAM
IPC: G05D1/08
Filed: 1948-01-26
Abstract: 718,247. Automatic steering control systems. SPERRY GYROSCOPE CO., Ltd. Jan. 26, 1949 [Jan. 26, 19481, No. 29222/52. Divided out of 718,171. Class 38(4) In a system, as described in Specification 718,171, in which aircraft elevators are operated by a fluid-pressure servomotor controlled through a negative feedback D.C. amplifier by the combined output of potentiometers adjusted by a pilot's control and a gyro-vertical respectively, further potentiometers, adjusted to give an output directly proportional to the weight of'the aircraft and inversely proportional' to the product of the square of airspeed and density of ambient air; also contribute to the input of the amplifier so that the setting of the pilot's control ensures a given angle of elevation of the flight path of the aircraft.
Patent GB-946778-A (GB)
Title: Improvements relating to pressure breathing apparatus
Inventor: ROXBURGH HENRY LINDSAY
IPC: A62B9/02
Filed: 1960-08-24
Abstract: 946,778. Respiratory masks. MINISTER OF AVIATION. Sept. 4, 1961 [Aug. 24, 1960], No. 29231/60. Heading A5T. [Also in Division F2] A pressure-breathing oxygen-mask 11 has a main oxygen inlet pipe 12 and an exhalatory valve 13 formed by a seat 23 with which co-operates an obturating disc 28 with a hollow depending part 29 secured to a flexible diaphragm 25, the disc being urged to its seat by a spring 30 the lower end of which abuts a hollow support member 31; the valve controls flow from the mask to an outlet 46. An evacuated bellows 33 controls the movement of a secondary obturator 37. The chamber 38 beneath the diaphragm 25 is connected both to the inlet pipe 12 via a small bore compensating pipe 14, and to atmosphere by ports 40 in the portion 29 and the seat 42 of the secondary obturator 37. A non- return valve may be included in the pipe 12. Below a given altitude the secondary obturator remains open so that the valve 13 is urged to the closed position solely by the spring 30. Above this altitude the bellows 33 expands and closes the secondary obturator 37 on to its seat 42 whereby the valve 13 is additionally urged on to its seat by the pressure from the pipe 14 acting on the diaphragm 25. Oxygen from the pipe 14 may also be directed beneath the obturator 37 to balance the pressure from chamber 38 acting on its opposite face.
Patent GB-1501149-A (GB)
Title: Isocarbostyril derivatives
IPC: A61K31/495
Filed: 1975-07-11
Abstract: 1501149 Isocarbostyril derivatives NISSHIN FLOUR MILLING CO Ltd 11 July 1975 29335/75 Heading C2C Novel compounds of Formula I wherein R 1  is C 1-4  alkyl and R 3  is C 1-8  alkyl are prepared by reacting a compound of Formula II wherein R 2  is a group of Formula III or -CH 2 CH(OH)CH 2 X, wherein X is halogen with the amine R 3 NH 2 . Pharmaceutical compositions in conventional forms for oral, rectal or parenteral administration having #-blocking activity comprise an above novel compound and a carrier or diluent.