baber/WOPTO huggingface dataset:
Patent GB-1176454-A (GB)
Title: Fluoroalkylsilicon Resins
Inventor: LARSON WILLARD DALE
IPC: C08G77/24
Filed: 1968-07-05
Abstract: 1,176,454. Siloxane copolymers. DOW CORNING CORP. 5 July, 1968 [20 July, 1967], No. 32133/68. Heading C3T. A process for preparing a fluoralkyl silicon resin which comprises: (1) mixing with an aqueous system having a pH <7, (a) 30-90 mole per cent of a silane RSiX 3  in which R is a perfluoroalkylethyl radical and each X is an alkoxy or acyloxy radical containing <7 C atoms, (b) 0-40 mol per cent of a silane RR<SP>1</SP>SiX 2  where R and X are as defined above and R<SP>1</SP> is a monovalent hydrocarbon radical or a perfluoroalkylethyl radical, and (c) 0-50 mol per cent of an organosilane YSiX 3  where X has the meaning defined above and Y is a monovalent hydrocarbon radical; (2) neutralizing the acidic pH and separating the co-hydrolysate from the aqueous system; (3) washing the co-hydrolysate and (4) recovering the fluoralkyl silicon resin. In a preferred process (a) has the formula: CF 3 CH 2 CH 2 Si(OCH 3 ) 3 , (b) has the formula: CF 3 CH 2 CH 2 Si(CH 3 )(OCH 3 ) 2  and (c) has the formula: C 6 H 5 Si(OCH 3 ) 3  or CH 3 Si(OCH 3 ) 3 . Claimed per se are siloxane copolymers which comprise: (a) 70-90 mol per cent of units RSiO 3 / 2 , (b) 0-30 mol per cent units RR<SP>1</SP>SiO and (c) 0-30 mol per cent of units ZSiO 3/2  when R, R<SP>1</SP> and Z are as defined above. R<SP>1</SP> is preferably CH 3  and each Z also CH 3 . A preferred copolymer comprises: 75 mol per cent of units: CF 3 CH 2 CH 2 SiO 3/2 , 10 mol per cent of units CF 3 CH 2 CH 2 Si(CH 3 )O, and 15 mol per cent of units CH 3 SiO 3/2 .
Patent GB-1099424-A (GB)
Title: Speed control circuits for series motors
IPC: H02P7/295
Filed: 1965-07-28
Abstract: 1,099,424. Control of D.C. motors. SINGER CO. July 28, 1965 [July 31, 1964], No. 32221/65. Heading H2J. [Also in Division G3] A series motor 10 is supplied from A.C. mains 15, 16, through controlled rectifier 14, a diode 17 permitting forward current flow in field winding 11 after the rectifier stops conducting to provide an armature feedback voltage having an exponentially decreasing time function. Capacitor 20 is charged to the peak value of the A.C. source voltage and is discharged through resistors 21, 22, to provide a reference voltage having an exponentially decreasing time function. The reference and armature voltages are combined to provide a gate firing voltage for the controlled rectifier.
Patent GB-1000855-A (GB)
Title: Improvements in or relating to electromagnetic wave transmitting aerials
IPC: H01Q1/42
Filed: 1963-08-15
Abstract: 1,000,855. Aerials. SIEMENS & HALSKE A.G. Aug. 15, 1963 [Aug. 17, 1962], No. 32282/63. Heading H4A. The effects of reflections from a radome surrounding an aerial array are minimized by spacing the elements of the array at distances from the radome such that the reflections mutually cancel at a junction in the feeder, supplying the elements. As shown in Fig. 1 an omnidirectional aerial comprises two vertically stacked units 1, 2, each containing two vertical arrays of eight parallel horizontal dipoles 7-14, each array being backed by a respective reflector 5, 4 and the two arrays being directed in opposite azimuthal directions. In further embodiments more than two arrays may be employed, arranged such that the dipoles in horizontal planes of the aerial lie along the sides of a polygon. The arrays are surrounded by a barrel-like radome 6 shaped so that the difference in diameter between the ends and the mid-plane is #/2 (where # is the mean operating wavelength). In this way the reflections from the radome to two adjacent dipoles in each array arrive in different phases so that they tend to cancel at a junction 15, Fig. 2, in the cophasal feed to the dipoles. In other embodiments, Figs. 3-5 (not shown), radomes of straight cylindrical form with the dipoles staggered therefrom, or radomes formed from two opposed frusto-conical sections, may be employed. In another embodiment, Fig. 6 (not shown) the dipoles are arranged horizontally around the sides of a rectangle whose centre is horizontally displaced by #2#/8 from the longitudinal axis of a cylindrical radome, along a diagonal of the rectangle. It is stated that the invention may be applied to existing aerials by suitably displacing the aerial elements and that the wall thickness of the radome may be varied along its length. The radome may be made of woven fibreglass.
Patent GB-342256-A (GB)
Title: Process for protecting aluminium, magnesium, or their alloys, against the action of corrosive agents
IPC: B65D5/20
Filed: 1929-10-24
Abstract: A protective coating is formed on aluminium, magnesium, or their alloys by immersion in a bath comprising an alkaline solution of a salt containing a metal in the acid radical other than chromium capable of forming at least two oxides, e.g. an alkaline solution of a vanadate, molybdate, tungstate, titanate, uranate, niobate or manganate or a mixture of two or more of these salts.  An article of aluminium may be immersed in a boiling solution containing about 0,5 per cent of sodium or potassium molybdate and about 1 per cent of sodium carbonate or the article may constitute the anode in an electrolytic bath of the above composition and a current passed through, the amplitude of the current being dependent on the temperature of the bath and the thickness of coating desired.
Patent GB-428796-A (GB)
Title: Improvements relating to filtering apparatus
IPC: B01D33/00
Filed: 1933-11-20
Abstract: 428,796. Filters. JORGENSEN, M. VOGEL-, 24, Bulowsvej, Frederiksberg, near Copenhagen. Nov. 20, 1933, No. 32384. [Class 46] Independent vacuum filter elements, carried by a chain conveyer or endless band moving round parallel axes, project from the conveyer to an extent which is greater than their largest cross-sectional dimension. A number of filter elements 1 carried by an endless chain 2 passing round rollers 3, 4, are subjected to suction as they move through a tank 7 containing slurry or liquid to be filtered and to air pressure to discharge the cakes from the filters as they pass over a conveyer 19. Each element comprises cloth or edge-filter leaves 26, Fig. 2, tapering outwards and supported from a hollow member 25 which communicates through a valve 8 and pipes 21, 22, with flexible pipes 9, 10 which extend parallel to the chain 1 and pass with it round the rollers 3, 4. The pipe 10 is connected by a transverse pipe 30 to a casing 10<1> which can rotate on the pipe 30 and is itself connected by a flexible pipe 12 to a source of air under pressure. The pipe 9 is connected by a short pipe 31 outside of the pipe 30 with a similar casing 91 which is connected by a flexible pipe 11 to suction. As shown the pipe 11 is wound on and opens into a rotatable drum 16 having a suction connection 18. The drum acts as a liquid separator, the liquid passing therefrom to a vessel 15. The valves 8 are turned by means of fixed cams so placed that the elements are connected with the pipe 9 and placed under suction before they enter the tank 7 and are connected with the pipe 10 and subjected to air pressure for discharging the cakes as they pass over the conveyer 19. It is stated that the liquid under treatment may be sprayed over the filter elements instead of being drawn from the tank 7.
Patent GB-230574-A (GB)
Title: Improvements in and connected with machines for cutting and similarly operating upon metals and other materials
IPC: B23D45/00
Filed: 1923-12-28
Abstract: 230,574. Beeson, S. E., and Beeson, :K. Dec. 28, 1923. Circular-saw machines.-Comprises a machine for cutting slots or recesses in metals and other materials or for cutting off lengths, of the kind in which a revolving cutter or saw is carried in a frame mechanically oscillated to move the cutter to and from the work, and the work is intermittently and mechanically fed between the stroke of the cutter. The power shaft 11 drives an eccentric or crank disc 18 reciprocating a rod 20 connected by universal joints to a rod 27 oscillating a shaft 21. This shaft carries an adjustable arm 33 connected by a link 34 to a cutter frame 35 pivoted at 45 to a beam 46, so that the cutter frame is reciprocated as the shaft 21 oscillates. The cutter 39 is rotated by belts 40, 39<1>, passing over pulleys 41, 37, 38. The beam 46 is pivoted at 48 and is counterbalanced by a weight 47, the depth of cut being regulated by a roller 53 working on an adjustable guide plate 52 which may be flat as shown or of any suitable contour. The cutter frame and beam are mounted on a support 32 which may be adjusted so that slots can be cut at any angle in the work 79. Two cutter frames are provided each of which is reciprocated by a separate rod 27. The work 79 rests in guides 83 slotted for the cutter at 84 and is fed between adjustable spring-pressed rollers 85 by the feeding mechanism shown at the left of Fig. 1. A second crank pin on the disc 18 reciprocates a slotted adjustable rod 62 which at the end of its travel operates a pawl rod 64 and so rotates a ratchet wheel 65. This wheel drives through bevel gearing 73 a cross shaft 74 geared at 75 to a parallel shaft below it, the two shafts 74 carrying friction rollers 77 which grip and feed the work 79. The upper roller 77 is held by an adjustable brake band 82 to avoid backlash. The work may be fed by hand, being gripped by a block attached to an endless band operated by a hand lever and ratchet gear.
Patent GB-590937-A (GB)
Title: A drawing mechanism for the normal and high drawing of textile fibres for self-acting spinning mules, ring spinning frames, preparing frames and drawing frames
IPC: D01H5/56
Filed: 1939-01-21
Abstract: 590,937. Drawing-mechanism for spinning &c. machines. AEBERLI, A. Jan. 21, 1939, No. 32461/46. Divided out of 585,657. [Class 120 (ii) ] In textile drawing-mechanism for mules &c. a shaft 23, mounted on a saddle 17, 21 loaded by a tension hook 18 and carrying pressure rollers 26, is bored transversely at 25 to house spring-pressed balls 24 which engage in annular grooves 27 in the pressure rollers 26 to prevent same from sliding off the shaft. The hook 18 is preferably flattened at 19 to engage in a recess 20 in the saddle part 17 to which the saddle part 21 is movably connected by a screw 22.
Patent GB-442249-A (GB)
Title: An improved tool or apparatus for use in bending metal tubes
IPC: B21D9/16
Filed: 1934-11-12
Abstract: 442,249. Packing sand in tubes. FREEMAN, T. E., 12, Beverley Road, Mitcham, Surrey. Nov. 12, 1934, No. 32530. [Class 94 (i)] A device for consolidating sand &c. in tubes preparatory to bending comprises a threaded rod 1 upon which is threaded a member 2 with four radiating bolts 3. The end is secured by a collar 6 to an extension 7 carrying a hexagonal ramming head 8 to which a disc 9, corresponding in size to that of the tube to be bent, is secured by a screw 10 having a hexagonal head. A disc 12 is adjustably arranged on the extension to prevent axial distortion. In use, the tube to be bent is drilled near the end and the member 2 secured by passing the bolts 3 through the holes. Sand is then introduced and a second compressing device is introduced at the other end. Compression is effected by turning the screws 1 by applying a spanner to the squared end, or using a bar with the aperture 5. The discs 9, 12 may be replaced by others for dealing with tubes of different sizes.
Patent GB-1088604-A (GB)
Title: Development of photographic lith material
Inventor: WOOD HENRY WALTER
IPC: G03C1/043
Filed: 1965-07-29
Abstract: A graft copolymer of polyethylene oxide and vinyl acetate is made by adding a solution of benzoyl peroxide in vinyl acetate to a solution of polyethylene oxide of M.Wt. 4000 in vinyl acetate maintained at 75 DEG  C., and maintaining that temperature for a further 3 hours. Traces of monomer are removed under vacuum and the product sets to a waxy solid on cooling.
Patent GB-442916-A (GB)
Title: Improvements relating to latches or locks for the doors of motor vehicles
IPC: E05B15/02
Filed: 1934-11-14
Abstract: 442,916. Door latches. RUSSELL & SONS, Ltd., S., and RUSSELL, E. G., Wednesbury Road, Walsall. Nov. 14, 1934, No. 32722. [Class 44] A combined catch and door silencer comprises a tapered and dovetailed member 3 secured directly to one flange 7 of an angleplate 7, 8 and connected to the other flange by a screw 11 with an interposed washer surrounded by a rubber pad 13. The member 3 has a hole 5 for engaging the door latch and is notched at 14 to form a safety catch. The member 3 engages a correspondingly tapered recess in the latch casing into which the latch projects. The member 3 may be secured to the flange 7 by integral studs passed through holes in the flange and riveted over.
Patent GB-534068-A (GB)
Title: Improvements in driving means for cinematograph film apparatus
IPC: G03B31/02
Filed: 1939-12-23
Abstract: 534,068. Hydraulic transmission of power : rotary engines. FAIRWEATHER, W. C. (Kollsman, P.). Dec. 23, 1939, No. 32834. [Class 69 (ii)] [Also in Group XXVI] Kinematograph film apparatus for sound and other films is driven by a Hydraulic transmitter comprising a gear pump 18, Fig. 4, or other pump, and a turbine 20, perferably of the kind with outwardly sliding vanes 14. The pump is preferably supplied from a reservoir 29 which is filled at the start and hermetically sealed so that liquid shall not be lost, and dirt excluded. A safety valve 21 is arranged between the inlet and outlet pipes of the turbine 20 to permit liquid to run back in case of interruption of the motor. For larger plants a turbine as shown in Figs. 6, 7 may be used in which two motors 34, 35, are arranged side by side in a casing formed of two interchangeable covers 30, 31, and an intermediate ring 32 which is centred on guiding spigots 33 and is secured by bolts to the covers. One rotor only may be used if desired, and the fluid circuits to the rotors may be arranged so that the two rotors act in series or in parallel or in opposition. To reduce friction on the vanes 14 the rotors 34, 35 are provided with external rings which rotate with them and prevent jamming of the vanes in their movements over the segments 45, 46 which are arranged between the fluid inlet and outlet connections 24, 9a 24a, as shown in Fig. 7, only one end 8 of the shaft projects from the turbine casing, but both ends may be made to do so. To obtain good sealing of the vanes with the rings 42, 43, the contact faces are ground to the same radius, and the corners are rounded at 49, Fig. 6, to secure good running. Recesses are provided in the vanes to permit the residue of liquid to flow off when the vanes reach the point 50, Fig. 6.
Patent GB-1092496-A (GB)
Title: Improvements in or relating to the continuous ringless spinning of textile fibres
IPC: D01H13/18
Filed: 1966-07-21
Abstract: 1,092,496. Break-spinning apparatus. VYZKUMNY USTAV BAVLNARSKY. July 21, 1966 [March 11, 1966], No. 32859/66. Heading D1D. In break-spinning using a spinning-chamber operating under reduced pressure, to secure the yarn-end when spinning is interrupted and the chamber is at rest, a clamping-element is arranged at the exit of the channel through which the spun yarn is withdrawn, the position of the element depending upon the pressure in the chamber. In Fig. 1, yarn is withdrawn from the spinning chamber through a channel 4. A two-armed pivoted lever is urged by a spring 9 so that the end 6 tends to move to clamp the yarn against a fixed part 8. The other end of the lever is connected to a piston or a diaphragm 11 in a cylinder pneumatically connected to the space inside the spinning- cham'ber 13. When the chamber is rotating, reduced pressure develops in the chamber by air escaping centrifugally through openings 15. By the connexion with the cylinder, reduced pressure also exists in the cylinder so that the piston is retained in the position shown whereby the element is held off the yarn against the pressure of spring 9. When the chamber stops rotating, atmospheric pressure is restored in the chamber, so that the piston moves to the right, allowing the lever to pivot and clamp the yarn. In another form, Fig. 3, not shown, the piston itself acts as the clamping-element and is subject to the attraction of a magnet which also acts as the fixed part against which the yarn is clamped.
Patent GB-193995-A (GB)
Title: Improvements in shock absorbing wheels or hubs
IPC: B60B9/00
Filed: 1921-12-07
Abstract: 193,995. Donlan, R. W. L. Dec. 7, 1921. Spring wheels.-A resilient device for use in a vehicle wheel comprises an endless chain &c. 17 guided over rollers 14, spring-pressed rollers 18 carried by the outer part 8, 9 of the wheel &c. bearing on the unsupported parts of the chain. The rollers 14 are normally seated in the corners of two pairs of four-armed spiders 10, 10<a>-12, 12". the former pair being carried by the outer member 8 and apertured to clear the axle 11 on which the latter pair are mounted. The rollers 18 are carried by rods 18<D> guided in sleeves 18<E>, which are threaded into the outer member of the device to adjust the thrust of the springs 18<B>. In a modification, two rollers such as 18 are arranged side by side to flatten the working angles of the chain 17.
Patent GB-292420-A (GB)
Title: Improvements in connection with rotary tooth brushes, manicuring and massaging appliances
IPC: A61C17/24
Filed: 1927-12-07
Abstract: 292,420. Markstein, R. P., and Kutter, L. Sept. 3, 1927, [Convention date]. Massage.-The spindle of a rotary tooth-brush h, which may be replaced by a massage member is surrounded by a loose helical wire d, and is rotated in one direction only, by depressing a trigger member b having a projection c to engage the wire d. A fly wheel or mass a is provided to store up the energy applied and the member b is returned for further action by a spring i. The end e of the wire d engages a toothed plate f on the spindle so that the latter can rotate in only one direction and the pitch of the screw d may be reduced towards its lower end e.
Patent GB-408911-A (GB)
Title: Improvement in electric discharge tubes
IPC: H01J17/04
Filed: 1933-11-29
Abstract: 408,911. Discharge rectifiers. JENAER GLASWERK SCHOTT & GEN., Otto-Schott-Strasse, Jena, Germany. Nov. 29, 1933, No. 33372. Convention date, Nov. 29, 1932. [Class 39 (i).] A disc-shaped control grid c<2> is held in the anode arm of a gas-filled electric discharge tube, the plane of the grid being perpen dicular to the longitudinal axis of the anode arm. A holding wire e<2> is fixed tc the grid before introduc tion into the anode arm, and makes an obtuse angle, preferably about 135‹, with the plane of the grid, as shown in Fig. 3. A side-tube f<2> for the grid holding wire makes an angle of about 45‹ with the axis of the anode arm. To fix the grid in position, the grid and holding wire are introduced into the side-tube f<2> in the manner shown in Fig. 5. The holding wire is then rotated through 180‹ and the grid takes up the position shown in Fig. 3. The end of the side tube is then fused over the flange g which has previously been vitrified.
Patent GB-789601-A (GB)
Title: Air conditioning apparatus
Inventor: JAMIESON ARCHIE WILLIAM HOLMES
IPC: F24F5/00
Filed: 1954-11-18
Abstract: 789,601. Ventilating aircraft. GODFREY (HANWORTH), Ltd., [formerly GODFREY & PARTNERS (HOLDINGS); Ltd., Sir G. Feb. 13, 1956 [Nov. 18, 1954], No. 33492/54. Class 137 [Also in Group XIII] Apparatus for cooling air delivered under pressure and supplying it to a compartment 15 comprises a turbine 11 the inlet of which is connected to a compressed air supply passage 20, while its outlet is connected to the compartment 15, a compressor 12 driven by the turbine and arranged to draw air through a passage 22 from the compartment 15 and to deliver it to a point outside the compartment, a heat exchanger 16 arranged between the passages 20 and 22 to transfer heat from the compressed air to the air passing to the compressor 12 and a precooler 17 to transfer heat to the fuel supply to an engine. The compartment 15 may be an aircraft cabin which is to be air conditioned and pressurized by ain air supply from the final or an intermediate stage of the compressor 18 of a propulsion engine 19 of the combustion turbine type. This supply passes through a shut-off valve 21, the precooler 17, the lower section of the heat exchanger 16, the turbine 11, a water separator 13 and a non-return valve 14 to the cabin 15 from which it flows to atmosphere or to passages for de-icing or de-misting purposes by way of a pressure regulating valve 23, a valve 24, the upper section of the exchanger 16 and the compressor 12. The exchanger 16 (see Group XIII) has a matrix driven by a variable speed gear to enable the temperature of the cabin to be controlled. On starting, the valve 24 may be rotated through a right angle from the position shown so that the upper section of the exchanger 16 receives air from the atmosphere until the cabin temperature has been sufficiently reduced.
Patent GB-340686-A (GB)
Title: Improvements relating to noble's combing machines
IPC: D01G19/02
Filed: 1929-11-04
Abstract: 340,686. Combing-machines. CLOUGH, P., Grove Mills, and PROCTOR, H., 97, Grafton Road, both in Keighley, Yorkshire. Nov. 4, 1929, No. 33528. [Class 120 (i).] In a Noble's combing machine all the comb balls receive an intermittent partial rotation about their own axes to vary the tension on the slivers alternately coincidently with the operation of the feed knives or the drawing-off rollers to secure uniformity of feed. The ball G rests upon wooden rollers A, B one or both of which is provided centrally with a toothed wheel H engaged by a rack J reciprocated radially of the machine by fixed cam surfaces thereon as the rack is carried round with the large comb circle. The inward movement, which causes the ball to pay out sliver, coincides with the action of the feeding knives and the rack is subsequently moved outwards to put tension on the sliver. When the ball becomes small it rests on a friction plate M which prevents excessive withdrawal of the sliver.
Patent GB-1008664-A (GB)
Title: Method and apparatus for the automatic application of coatings
IPC: A61K9/50
Filed: 1962-08-31
Abstract: Uniformly reproducible film coatings on tablets, capsules or particles are provided by controlling a coating apparatus by a relay system responsive to a punched tape (see Division G3).  The coded signals (I) activate a device for rotating a coating pan containing uncoated materials and having baffles for tumbling the materials, then (II) activate a device for spraying a coating formulation on to the uncoated materials, and (III) activate a device whereby heated compressed air is introduced into the coating pan to dry the coated materials; a time interval is allowed between treatments to ensure uniformity of coating. Pharmaceutical tablets may be so coated with cellulose derivatives, ethylene-maleic anhydride copolymers, vinyl polymers, polyethylene oxide resins, polyethylene glycols and esters thereof, or starch products.  Specifications 526,276 and 715,305 are referred to.
Patent GB-899985-A (GB)
Title: Improvements in and relating to piezoelectric gauges
IPC: G01L23/10
Filed: 1960-09-30
Abstract: 899,985. Piezo-electric gauges. LIST, H. Sept. 30, 1960 [Oct. 2, 1959], No. 33621/60. Class 40 (1). [Also in Group XL (b)] In a piezo-electric  gauge of the type used for measuring the pressure in the cylinders of internal - combustion engines wherein cooling fluid passes through an annular chamber around the piezo elements, two diametrically opposite ribs project into the chamber over the whole height thereof to divert the coolant through one or more transverse bores adjacent to the piezo elements. In Fig. 3, two quartz crystals 9 and 10 sense pressure communicated through a transfer head 8 and develop charges at electrodes 11 and 12 which are taken off via lead 16 and the casing, a layer 14 of soft metal such as aluminium providing a low-resistance contact. Coolant flows through channels 23 into an annular chamber 17 and passes through transverse bores 24. The chamber 17 (Fig. 4) contains a guide sleeve 25 having projecting ribs 26 and 27 to divert a proportion of the coolant through the bores 24, depending on the width of gap left. The inlet and outlet ports 21 and 22 are on opposite sides of the ribs.