baber/WOPTO huggingface dataset:
Patent GB-684296-A (GB)
Title: Improvements in or relating to organosilicon compounds
IPC: C07F7/08
Filed: 1951-03-06
Abstract: The invention comprises organo-silicon compounds of the formula O[Si(CH3)2(CH2)nNH2]2, wherein n is an integer from 2 to 5 inclusive, and salts thereof, and a method of preparing the above compounds by treating a compound of the formula R(CH3)2Si(CH2)nNH2, wherein n has the above significance and R is the methyl or phenyl radical, or a salt thereof, with concentrated sulphuric acid, whereby the radical R is cleaved from the silicon atom to form a sulphate ester which is hydrolysed and condensed to form the bisulphate of the desired amine of the formula O[Si(CH3)2(CH2)n-NH3 OSO3H]2, and on neutralizing the bisulphate the desired free amine is obtained.  The salts are formed by reaction with an acid, e.g. hydrochloric acid.  In the example, a compound is prepared of the above general formula, wherein n is 2, and the hydrochloride salt.  Specifications 684,268, 684,293 and 684,294 are referred to.
Patent GB-555283-A (GB)
Title: Improved means for sealing slots in gun turrets
IPC: F41A27/10
Filed: 1939-02-18
Abstract: 555,283. Gun turrets. BOULTON PAUL AIRCRAFT, Ltd., and EDWARDS, T. Feb. 18, 1939, No. 5445. [Class 92 (i)] The gun elevation slot in the cupola of a gun turret is closed by a system of telescoping plates 2, 4, 5 &c. moving in fixed guides 1 bordering the slot. The plate 2 is fastened at 3 to the turret and bent portions 6 and rolls 7 on the plates serve to guide and limit the movements of the plates over one another. The upper gun-port plate 10 is hinged at 11 to the adjacent plate 5 and a shutter 16 with side plates 15 is pivoted at 18 to the plate 10 to serve as a support and guide for the gun 19, Fig. 5. The upper end of the gun slot may be closed by a strip of flexible material moving in guides in the cupola.
Patent GB-1008839-A (GB)
Title: Improvements in or relating to cigarette-making machinery
IPC: A24C5/32
Filed: 1961-02-14
Abstract: 1,008,839. Conveying cigarettes. TOM ROWLANDS, and MOLINS ORGANISATION Ltd. Feb. 14, 1962 [Feb. 14, 1961], No. 5450/61. Heading B8A. [Also in Division A2] Cigarettes (i.e. cigarette assemblages of double length having stubs) are fed singly on and around rotating wheel 7 and fall therefrom into the individual flutes 9 of drum 8. Each cigarette is pushed along its groove to the left by pusher 14 as the drum is being rotated and is then discharged at 20 on to a rotary conveyer 10 (not shown) which transports the cigarettes in a direction opposite to drum 7. Each pusher 14 has a cam follower 15 which engages with fixed oblique cam 16 so that during the first half of the rotation of the drum the pusher is urged leftwards to discharge the cigarette and during the second half of the rotation the pusher is urged rightwards to restore it to its original position.
Patent GB-415136-A (GB)
Title: Improvements in or relating to the manufacture of explosive compositions of the character of dynamite
IPC: C06B31/30
Filed: 1933-02-23
Abstract: 415,136. Explosives. DU PONT DE NEMOURS & CO., E. I., Wilmington, Delaware, U.S.A. Feb. 23, 1933, Nos. 5544 and 5545. Convention dates, Feb. 23, 1932 and May 10, 1932. [Class 9 (ii).] A flaked cereal product is used as combustible ingredient in admixture with a liquid explosive ingredient in the manufacture of an explosive of the character of dynamite. The flaked cereal product may be made in any known suitable way, for example from maize which has had the hull and germ portions removed therefrom. The product may be ground to pass through a 6-mesh " Tyler " screen having openings 0À131 inches wide, and may have a density not greater than 0À3. The explosive may be non-gelatinous and contain nitroglycerine (preferably more than 5 per cent), coarse or fine ammonium nitrate, sodium nitrate, and ivory nut meal; or gelatine dynamites may be made by the addition of nitrocotton, dinitrotoluene, and other usual ingredients. Several examples are given and compared with examples of similar explosives not containing the flaked cereal.
Patent GB-1502088-A (GB)
Title: Cathode ray tube deflection unit
IPC: H01J29/76
Filed: 1976-02-12
Abstract: 1502088 Colour television tubes INTERNATIONAL STANDARD ELECTRIC CORP 12 Feb 1976 [14 Feb 1975] 05553/76 Heading H1D A deflection unit for mounting on the neck of an in-line three-gun colour television tube includes, axially to the front or to the rear of the deflection coils, ferromagnetic elements 21, 22, 31, 32, 33 and 34, arranged in a plane perpendicular to the axis, for modifying the magnetic fields to provide barrel and pin-cushion field shapes consistent with the required convergence. The elements are of the form shown, and may be movably mounted to permit adjustment. Each set of three elements 22, 33, 34 may be combined as a single structure. The deflection coils may be either toroidal or of saddle construction.
Patent GB-1013614-A (GB)
Title: Document reading system
IPC: G06V30/224
Filed: 1963-02-12
Abstract: 1,013,614. Automatic character reading. SPERRY RAND CORPORATION. Feb. 12, 1963 [Feb. 23, 1962], No. 5597/63. Heading G4R. Characters for automatic reading are formed of a series of fine parallel lines 10, Figs. 1a, 1b, the lines being in three zones A, B, C, the first zone having a predetermined number of lines and the second having certain lines removed so as to form a coded representation of the character. Each group may consist of eight lines or line positions. The first eight are used to prepare the reading circuits to receive the coded group. The characters may be printed in magnetic ink and after magnetization by head 15, Fig. 2, sensed by a single head 17. Alternatively, if non-magnetic, a strip-like beam of light may be used, reflected light being received in a photo-cell. After shaping, pulses representing the lines pass via gate 26, Fig. 3, to a synchronized oscillator circuit 28 and directly to a counter 24. The counter counts the eight makeready lines and then gives a signal on line 25 indicating that the next pulse is the first line of the code section B. This line is always present and is termed the " sprocket " pulse. The oscillator 28 produces output pulses in phase and at the same frequency as the eight pulses relating to the make-ready lines and continues to produce such pulses during the rest of the scanning operation. The input to oscillator 28 ceases when counter 24 gives a signal on line 25 since flip-flop 27 is then set closing gate 26 and opening gate 31 so that the pulses generated can be applied as clock pulses to gate 32 and shift register 33. The signals on line 47 relating to the coded zone B are accordingly gated into the register in the correct relationship to provide a corresponding binary pattern. The sprocket line signal is stored in the right-hand stage and this resets the counter 24 and flip-flop 27 to cut off the clock pulse supply. The counter may then count the pulses from the " terminate " zone C. The stored pattern may be read out in response to a signal on line 41 from the utilization circuits 22. Instead of using a shift register a series of gates may be provided enabled in succession to distribute the successive binary signals from the coded zone B to appropriate storage stages. To avoid difficulties arising from skewing between the lines and the reading head, the head may be replaced by three smaller heads 52, 53, 54, Fig. 6, and the characters are arranged so that in at least one of the vertical zones I, II, III, Fig. 7, there is an uninterrupted set of lines. The reading circuit is repeated for each reading head and the utilization circuit accepts whichever output presents a correct coded pattern. The final line position of the coded zone B may be a parity check line.
Patent GB-468717-A (GB)
Title: Improvements in and relating to driving bands and a method for manufacturing the same
IPC: F16G9/00
Filed: 1936-02-25
Abstract: 468,717. Braiding. MARTI, J. M. Feb. 25, 1936, No. 5657. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 3, 1936.] [Class 74 (i)] [Also in Group XXV] A driving band, more particularly suitable for driving spindles, comprises a multi-strand endless rubber core enclosed in one or more endless plaited or braided tubes, which enclose the core loosely when the band is unstretched. The core may be made from a single strand of rubber knotted together, made into a figure 8, and folded on itself several times. The knot is untied after part of the cover has been made. The band may be impregnated with rubber and vulcanized. The core may be trained round five pulleys, 4 ... 8, Fig. 5, of which 8 is a tension pulley. The thread 13 passes from the cop 11 through a guide 12 to the point 14, where it meets threads from other spindles (not shown) and is braided on to the core. Reference has been directed by the Comptroller to Specification 102,754, [Class 109].
Patent GB-1202518-A (GB)
Title: A machine for manufacturing blanks such as bolt or nut blanks in successive stations
IPC: B21K1/64
Filed: 1969-02-03
Abstract: 1,202,518. Making nuts and bolts; transfering blanks. NEDSCHROEF OCTROOI MAATSCHAPPIJ N.V. 3 Feb., 1969 [9 Feb., 1968], No. 5693/69. Headings B3A and B3H. A machine for manufacturing blanks, such as nut or bolt blanks is characterized in that the blanks are successively subjected to a series of processing operations in shaping dies 17a- 17d, provided with ejecting means and disposed equidistantly along a straight path 21, and transfer means are provided including arms 1a-1d which rotate about parallel axes such that they describe curves which are elongate with respect to the path 21. The levers are mounted on gears 2a-2d which are driven by pinions 14a-14d said gears and pinions being mounted rotatably on connecting links 15a-15d. The pinions are driven by internal gearing 10a-10d and also engage with fixed gearing 13a-13d so that the pinions describe a circle in the annuli formed by gearing 10a-10d, 13a-13d. Any point on the levers 1a-1d other than their axes of rotation describes an ellipse, Fig. 5 (not shown), the long axis of which is parallel to the path 21. Selected levers 1b-1d carry cam members 23b-23d which co-operate with members 24b-24d attached to abutments 22b-22d to move the abutments out of the path of the blanks being transferred. The abutments are returned to their blocking position by springs 25b-25d. The operation of the levers is synchronized with the operation of the shaping means.
Patent GB-363229-A (GB)
Title: Improvements relating to mincing machines
IPC: B02C18/30
Filed: 1931-02-24
Abstract: 363,229. Cutting and slicing meat &c. BERKEL, A. W. VAN, 28c, Erdbergerlaende, Vienna. Feb. 24, 1931, No. 5746. [Class 5 (i).] A mincing machine, in which the meat &c. is fed through a casing 2 by a rotatable screw 5 to a perforated discharge plate 3, has one or more rotary cutters each in the form of a thin circular concave knife. The end of the feed screw 5 has a polygonal projection 8 carrying a cross arm 9, fitted with pins 10 on which are rotatably mounted the concave disc knives 11. When the arm 9 is rotated the discs 11 also rotate about the pins 10 thus exerting a combined slicing and shearing action. The arm 9 may consist of a thin resilient slat 9b carried on a central boss 9a, bearing upon a spring washer 12, so that the knives 11 always press evenly on the plate 3. The pins 10 may also be replaced by universal joints to give greater play.
Patent GB-1304873-A (GB)
IPC: B29C45/64
Filed: 1970-04-15
Abstract: 1304873 Injection moulding machines SEARY MFG CO 15 April 1970 [7 May 1969] 5761/72 Heading B5A The subject-matter is all included in the parent Specification, but the claims relate to injection moulding apparatus having means for starting and stopping an injection cycle, means for opening an injection valve when the injection cycle is started, and means for closing the valve a predetermined brief time interval after injection ceases and before the mould opens. The apparatus is controlled by a plurality of relays (Fig. 4, not shown), some of which are timed to produce predetermined delays.
Patent GB-1130012-A (GB)
Title: Mechanical vibrator for timepiece
IPC: G04C3/10
Filed: 1966-02-10
Abstract: 1,130,012. Springs. CITIZEN TOKEI K.K. 10 Feb., 1966 [12 Feb., 1965; 13 Aug., 1965; 20 Aug., 1965 (3)], No. 5787/66. Heading F2S. [Also in Division G3] A mechanical vibrator for a time piece (see Division G3) comprises three parallel oscillatory arms 8, 9, 8a lying in a common plane and vibrating with a common frequency in opposite phase to each other in a plane perpendicular to the common plane. A base part C of the vibrator, which is stamped from a single sheet of spring material, is clamped by screws 10, 11 to a base plate of the timepiece. Several modifications such as twin arm vibrators and triple arm vibrators in which the outer arms are rigidly connected are described.
Patent GB-1379851-A (GB)
Title: Apparatus for determining frequency components in a complex signal
IPC: G01R23/00
Filed: 1972-02-08
Abstract: 1379851 Frequency analysis TRACOR Inc 8 Feb 1972 [19 April 1971] 5818/72 Heading G1U A frequency analysis circuit in which an unknown signal 23, Fig.1 is applied in parallel to a bank of band-pass filters 11, 13, 15, is characterized in that each filter is a synchronous filter having its centre frequency set by an output from a frequency synthesizer 17 controlled by an oscillator 19. The system is of particular use in analyzing a signal whose frequency components may vary but in such a way that they always bear a particular fixed ratio with each other. For example, F 1  may be k 1 F 0  and F 2  may be k 2 F 0 . When this is so, the frequency synthesizer can be arranged to divide the signal from oscillator 19 by appropriate factors so that the required ratio is maintained. In the particular example described sound from an engine under test is examined to detect incipient faults. The oscillator 19 is adjusted to a frequency corresponding to the engine speed, the sound is converted to electrical form and applied to the filters, the filter outputs are rectified and smoothed 25, 27, 29, Fig.3, two sets of weighting factors a 1 , a 2 , a 3 , and t 1 , t 2 , t 3  are applied to the respective signal component, and as a result two signals # and γ are produced by adders 63, 65. These signals, by using suitable weighting factors, are said to be indicative of engine condition.
Patent GB-124440-A (GB)
Title: Stencil Duplicating Apparatus.
Inventor: ZAENGER HENRI
IPC: B41L13/02
Filed: 1919-03-10
Abstract: 124,440. Zaenger, H. Oct. 27, 1916, [Convention date]. Stencilling; inking - apparatus.-A stencil duplicator comprises a casing having the stencil on its lower side and an inking impression roller moved to and fro over the stencil, the inside of the upper part of the casing acting as an inking-surface for the roller. As shown, the casing f is attached to the usual two-part clamp a carrying the cloth screen b and stencil, and is hinged at one end d to the base plate e on which the sheet to be printed is placed under the stencil. The inner surface f<1> forms an inking-surface over which the impression roller g rolls as it is moved to the right by pulling the handle j<1>. The roller g is carried by arms k pivoted at h<2> in a frame h sliding on parallel rods fixed in the casing, and the frame h is connected to the handle j<1> by rods j. When the roller reaches the end of its movement to the right, arms m engage stops n<1> to rock the arms k and roller g downwards into engagement with the stencil screen b over which it rolls as it is moved to the left by pushing in the handle j<1> and rods j. At the end of the printing movement, the roller is raised by stops n, and it is held in either the raised or the lowered position by a curved spring l engaging the trunnions of the roller. An ink-distributing roller o is mounted in slots q in the frame h, and is pressed against the roller g by springs on rods provided with nuts t for withdrawing the roller o from the roller g after inking up the rollers and surface f<1>, preparatory to printing, by to and fro movement of the rollers. Ink may be applied to the rollers through an opening f<2>. The roller o is moved longitudinally as it is rotated by the roller g, by means of a screwed shaft on which it is mounted. Modifications are described of the spring devices for holding the roller g in raised or lowered position, and of means for holding the roller o in or out of contact with the roller g.
Patent GB-1102921-A (GB)
Title: Stabilised polyamide compositions
Inventor: EDGAR OWEN BURCHELL
IPC: C08K3/24
Filed: 1965-02-11
Abstract: Fibre-forming polyamides are stabilized by addition of inorganic oxy-compounds of tungsten or an inorganic oxy-acid of molybdenum. Polyamides specified include hexamethylene adipamide. The metal compound may be added during polymerization in an amount such that 0.001-1.0% of metal is present.  Tungsten compounds specified include tungstic acid, polytungstic acids, tungstates, polytungstates, tungsten trioxide, heteropolytungstic acids, phosphotungstic acid, phosphotungstates, and dodecatungstophosphoric acid.  Molybdenum compounds specified include molybdic acid, polymolybdic acids, molybdates, e.g. sodium molybdate, polymolybdates, heteropolymolybdic acid and its salts. Other photo- and thermal stabilizers may be used in conjunction with these, e.g. 3-9 p.p.m. of a copper compound, e.g. cupric acetate, 100-900 p.p.m. of a halide or 5-100 p.p.m. of a manganese compound. The copper compound may be used in conjunction with an alkali metal or ammonium halide or a hydrogen halide of an organic base. The manganese compound may be added during or after polymerization in an amount such that the manganese and tungsten or molybdenum are present in their atomic ratios.  Manganese compounds specified include manganese tungstate, phosphotungstate, molybdate, phosphomolybdate, acetate, oxalate, adipate, lactate, orthophosphate or pyrophosphate.  The polyamide may also contain a pigment, e.g. 0.02-3.0% TiO2.  In examples the polymerization is effected in the presence of water, acetic acid and hexamethylene diammonium iodide and in the absence of air.  The product is made into a fabric.
Patent GB-657556-A (GB)
Title: Improvements in rotary wing aircraft
IPC: B64C27/46
Filed: 1948-02-27
Abstract: 657,556. Helicopters. STALKER, E. A. Feb. 27, 1948, No. 6057. Convention date, Sept. 14, 1944. [Class 4] In order to increase and balance the lift of helicopter rotor blades at high forward speed, flaps mounted on their leading and trailing edges are operated cyclically during their rotation and arranged to be depressed when each blade is retreating, in which position the flaps open slots for the discharge of air over the blade to promote lift. As shown, applied to a helicopter with twin side-by-side rotors 2, 4, each blade carries an outboard trailing edge flap 60 and an inboard leading edge flap 60a, the flaps being mounted on opposite edges of the blade to counteract the reversed airflow over the inboard portion at high forward speed. Boundary layer control slots 62 are provided between the fixed portions of the blades and the flaps, through which is discharged air compressed by an engine-driven fan. Upon lowering the flap the upper slot is opened and the lower one closed, to increase the airflow over the upper blade surface. Oscillation of the flaps is controlled by a deformable cam 152 driven by the rotor drive shaft and operating through linkages 170, 170<SP>1</SP>. The contour of the cam is controlled by pressure-responsive elements 182 in communication with the throat of a Venturi nozzle carried by a rotating arm 184.
Patent GB-208446-A (GB)
Title: Improvements in glass holders
IPC: A47G23/02
Filed: 1923-03-02
Abstract: 208,446. Freakes, C. March 2, 1923. Stands.-A tumbler holder, to be clamped on to a bedstead, is made of wire, and is provided with an annular portion d holding the glass l laterally and a portion b supporting its bottom. The wire a .. d is preferably covered with rubber tubing and the part d is preferably an incomplete circle which can be adjusted to the size of the tumbler. A luminous card f may be provided.
Patent GB-599138-A (GB)
Title: Improvements in moistureproof polyvinyl chloride films
IPC: C08K5/06
Filed: 1945-03-12
Abstract: Films resistant to passage of water vapour comprise a polyvinyl chloride type resin and 0.5-3.0 per cent by weight of the film of a dialkyl ether having a m.p. above room temperature, each alkyl group of which contains from 10-18 carbon atoms.  In suitable resins the elements of vinyl chloride make up at least 60 per cent of the resinous components, copolymers, terpolymers and mixtures of vinyl polymers and copolymers may be used.  Unsaturated compounds which may be copolymerized with vinyl chloride include vinyl esters, ethers and aryl substituted products, e.g. styrene, vinyl naphthalene and dichlorostyrene; acrylic esters and nitriles, vinylidene chloride, butadiene and chloroprene, coumarone and indene.  Plasticizers, stabilizers, solvents and modifiers may also be present, specified are dialkyl phthalates, trialkyl and triaryl phosphates, esters of dibasic acids, aryl alkyl polyethers and fatty acid esters, e.g. dibutyl sebacate, di- and tri-octyl phosphates, tricresyl phosphate and dicresyl carbitol, glycerol monostearate, lead oleate, glyceryl dicresyl ether, calcium stearate and methyl ethyl ketone.  Suitable dialkyl ethers include one or more of dilauryl, dimyristyl, dicetyl, distearyl lauryl stearyl, lauryl cetyl and myristyl cetyl ethers and mixed ethers synthesized from fatty alkyl radicals derived from natural oils, fats and waxes, e.g. coconut oil, tallow and hydrogenated fish oil.
Patent GB-824602-A (GB)
Title: Improvements in and relating to saw chain and tooth therefor
IPC: B27B33/14
Filed: 1958-02-26
Abstract: 824,602. Sawing. SHONE, A. K. Feb. 26, 1958 [Jan. 23, 1958], No. 6158/58. Class 145. The cutter links 74 of a chain saw have a solid head 85 of which the front face 108 is raked forwardly and inwardly and the top and outer side faces 103, 150 are raked rearwardly and inwardly and the links follow each other in immediate succession and have sloping or vertical surfaces 119 at their front and rear ends which, on the straight run of the chain, abut so that the links are prevented from cocking outwardly under the cutting load. Alternate cutting links are of opposite hand and may be connected together by a single side link or by pairs of side links. The cutting head preferably lies behind the forward connecting rivet for that link and may be at the rear end of the link.
Patent GB-471192-A (GB)
Title: Improvements in or relating to machines for peeling vegetables and the like
IPC: A23N7/02
Filed: 1936-02-29
Abstract: 471,192. Peeling vegetables. WRIGHT, F. H., and LEWIS, E. W. Feb. 29, 1936, No. 6182. [Class 28 (ii)] In a vegetable peeling machine, the bottom of the drainage compartment beneath the rotary disc 11, slopes over its whole area towards a drainage aperture 17 at one side, and is defined by two relatively inclined planes which intersect along a line which passes through the vertical centre line of the drainage aperture and the centre of the shaft 12 carrying the disc 11. The drain pipe 18 is secured to the machine by wing-nuts 19 so that, by removing the pipe, a large inspection aperture 15 is provided. Alternatively, a separate removable inspection door may be provided above the pipe. The disc 11 is fastened to the shaft 12 and rests upon a bearing bush 20 a spring 38 keeping the disc and bush in contact and preventing the entrance of water into the driving mechanism. The bevel wheel 37 is keyed slidably at 36 to the shaft 12 and is maintained by the spring 38 in contact with the lower end of the bush 20. The bevel pinion 42 on the motor shaft, gears with the wheel 37, the gearing being submerged in oil inserted into the chamber C through a filler opening at the side of the chamber. An oil drain plug 49 is provided. The shaft 12 is lubricated by a helical groove which draws up oil to be returned by the passage 48. The peeling chamber A is partially closed by a lid 27 having a charging shoot 28 and water spray orifices 30.