baber/WOPTO huggingface dataset:
Patent GB-1048348-A (GB)
Title: Bis-acrylate stabilizers and compositions containing them
IPC: C08K5/315
Filed: 1964-01-28
Abstract: The invention comprises compounds of formula <F\1> wherein A is a divalent radical derived from diphenylmethane, fluorene or dihydroanthracene by removal of 2H from a CH2 group, X and Z are O, S or N (see. or tert.), Y is alkylene, oxyalkylene or an alicyclic, aromatic or aralkylene group and the aromatic rings may be substituted.  The compounds are prepared by reacting together the appropriate aromatic ketones and bis-cyanoacetic acid derivatives. Compounds are exemplified in which (i) A is Ph2C, X and Z are O and Y is CH2CH2OCH2, CH2 or (CH2)n where n is 2, 3, 6 or 10, (ii) A is p-ClC6H4CPh, X and Z are O and Y is (CH2)2 (iii) A is Ph2C, X and Z are NH or S and Y is (CH2)2.ALSO:Thermoplastic compositions comprise as ultra-violet absorber 0.1-10 wt. per cent of a compound of formula <FORM:1048348/C3/1> wherein A is a divalent radical derived from diphenylmethane, fluorene or dihydroanthracene by removal of 2H from a CH2 group, X and Z are O, S or N (sec. or tert.), Y is alkylene, oxyalkylene or an alicyclic, aromatic or aralkylene group and the aromatic rings may be substituted.  The photo-stabilization, with 1 or 2 wt. per cent of the above compound, of polyoxymethylene diacetate (mol. wt. 50,000) containing 1 wt. per cent polycaprolactam - polyhexamethyleneadipamide - polyhexamethylenesebacamide 38:35:27 terpolymer (thermal stabilizer), 0.1 wt. per cent 4,41-butylene bis(3-methyl-6-t.-butylphenol) (antioxidant) and 1 wt. per cent Cd sulphoselenide (pigment) is exemplified.
Patent GB-791594-A (GB)
Title: Improvements relating to double reduction gearing for marine propulsion
Inventor: DAVIS ALLAN WILLIAM
IPC: F16H57/02
Filed: 1955-02-08
Abstract: 791,594. Toothed gearing. FAIRFIELD SHIPBUILDING & ENGINEERING CO., Ltd. Feb. 6, 1956 [Feb. 8, 1955], No. 3668/55. Class 80 (1). [Also in Group XXXIII] In marine propulsion double helical toothed reduction gearing 10, 13, 19, 24, wherein a sliding tooth coupling 22 and a quill shaft 17 interconnect the tubular shafts 14, 20 of the gear 13 and pinion 19, and wherein the gear 13 is located with clearance by thrust bearings 15, 16, means such as a spring-loaded plunger 42 hold the gear 13 clear of the bearing 15 at low shaft speeds. If, under high-speed-ahead conditions of maximum propeller thrust, the main thrust bearing block 27 locating the propeller shaft and gear 24 distorts and the coupling 22 binds, the gear 13 may move with the pinion 19 towards the bearing 15 to accommodate the change in axial position of the gear 24. The device 42 thus avoids wear on the bearing 15 or uneven loading of the helical gear teeth should the coupling 22 bind. The axial clearance in bearings 15, 16 is greater than that in the main thrust bearing 27. The plunger 42 acts through a ball or roller bearing and is mounted in a casing attached to the ship's hull, means (not shown) being provided for adjusting the spring loading. The spring loading may be adjusted to counteract the gravitational thrust on the shaft 14 when the ship is trimmed by the head to the maximum permissible degree. A similar spring device may be applied to the other end of shaft 17 for use during astern propulsion and trimming by the stern, and means be provided for rendering the appropriate device active. In a modification obviating the use of a spring- loaded plunger the straight teeth of the coupling 22 are replaced by helical teeth providing the required axial loading on the wheel 13.
Patent GB-508932-A (GB)
Title: A process for the manufacture of epithio-alkanes
IPC: C07D331/02
Filed: 1939-02-03
Abstract: 508,932. Epithioalkanes. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Feb. 3, 1939, No. 3680. Convention date, Feb. 16, 1938. Sample furnished. [Class 2 (iii)] Epithioalkanes are produced by treating halogen thiols in which the halogen and thiol group is on adjacent carbon atoms, with substances binding hydrogen halide, the reaction mixture remaining neutral or practically neutral, e.g. at pH 5.5-11.5. Suitable acid binding agents are sodium bicarbonate, hydroxide, hydrosulphide and acetate, mixtures of mono- and di-sodimn phosphates, and acid potassium phthalate. In examples, chlor-2-ethane thiol is stirred at 20‹ C. with sodium bicarbonate ; the reaction mixture is distilled under reduced pressure and the upper layer of the distillate is dried over calcium chloride and stabilized by adding a little hydrogen sulphide ; (2) the bicarbonate is replaced by sodium hydrogen sulphide, in which case separate addition of hydrogen sulphide is unnecessary. Halogen thiols are made by reacting monothio-glycols with hydrogen halides. Monothio-glycol is obtained by the action of hydrogen sulphide in ethylene oxide. A sample of epithio-2.3-butane has been furnished under Sect. 2 (5), produced by the action of sodium bicarbonate on chlor-2-butane thiol-3.
Patent GB-511036-A (GB)
Title: Manufacture of stable emulsions and dispersions of polymerisation products
IPC: C08F261/04
Filed: 1938-02-05
Abstract: 511,036. Vinyl polymerization products. GROVES, W.W. (I.G. Farbenindustrie Akt.- Ges.). Feb. 5, 1938, No. 3687. [Class 2(iii)] Stable aqueous emulsions are prepared by polymerization of a vinyl ester of an organic carboxylic acid, or a mixture thereof with unsaturated polymerizable bodies, in an aqueous solution of polyvinyl alcohol or of a watersoluble derivative of polyvinyl alcohol, the weight of the aqueous solution not being greater than that of the polymerizable compounds aridthe viscosity of the aqueous solution being at least 20 centipoises. Suitable vinyl esters include the formate, acetate, propionate, butyrate, choracetate, methoxyacetate or ethoxyacetate and suitable substances that may be interpolymerized with them include vinyl halide, methyl acrylate, ethyl acrylate, methyl methacrylate, ethyl methacrylate, dimethyl maleate, dimethyl maleate, dimethyl fumarate, dimethyl fumarate, methyl crotonate or ethyl crotonate. In examples (1) vinyl propionate is polymerized in emulsion in an aqueous solution of polyvinyl alcohol containing lactic acid and potassium perborate; (2)- vinyl acetate is polymerized in-emulsion in an aqueous solution of polyvinyl alcohol or a partially acetalized polyvinyl alcohol containing formic acid and hydrogen peroxide ; (3) a mixture of vinyl acetate and vinyl butoxyacetate is polymerizad in emulsion in an aqueous solution of polyvinyl alcohol containing some acetyl groups, the solution also containing glacial acetic acid and hydrogen peroxide. Specifications 466,173, 469,319 and 475,762 are referred to.
Patent GB-418718-A (GB)
Title: Improvements relating to searchlights
IPC: F21V5/00
Filed: 1934-02-05
Abstract: 418,718. Dispersion means for searchlights. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Feb. 5, 1934, No. 3742. Convention date, Feb. 10, 1933. [Class 75 (ii).] A searchlight with variable dispersion means, particularly for following aircraft, is provided with a plurality of dispersion sets through which the light passes successively and which are rotatable relatively to one another about the optical axis or axes parallel thereto, with the effect that in one position of alignment a concentrated light beam is produced, whilst in another position a dispersed beam is produced. The two dispersion sets shown in the Figures are arranged co-axially, and comprise sub-dispersion-sets contained in the quadrants 5-12. The quadrants 6, 8, 9, 11 contain series of prisms which deflect the light passing through them, and the quadrants 5, 7, 10, 12, contain plain glass or sub-dispersion-sets of different deflecting or dispersive power. When the quadrants 9, 11 are in line with the quadrants 5, 7, a dispersed beam is produced and when the quadrants 9, 11 are in line with the quadrants 6, 8, the beam is concentrated, the sub-dispersion-sets neutralizing the effect of one another. The dispersion sets are carried by frames 1, 3, guide rollers on the frame 1 running in a groove in the frame 3. The rotatable set is provided a remotely controlled electrical drive, which can be changed over to hand drive.
Patent GB-964252-A (GB)
Title: Improvements in and relating to electric signal systems
IPC: H04S3/00
Filed: 1961-02-01
Abstract: 964,252. Binaural systems. PHILCO CORPORATION. Feb. 1, 1961 [Feb. 1, 1960; March 14, 1960], No. 3784/61. Headings H4J and H4R. An electric signalling system comprises two push-pull stages 32, 41 (Fig. 1), for respective stereophonic input signals 30, 31, each stage 32, 41 including a respective output transformer 36, 45 having two primary windings 37 and 38, 46 and 47, and there being a third output transformer 50 common to both stages 32, 41 and having a primary 51 defined by primary winding sections. The two primary windings of each of the transformers 36, 45 are connected in pushpull relationship by connections through primary sections of transformer 50. Transformer 50 is connected in push-pull relationship in both stages 32, 41 and presents a low impedance to signals of higher audio frequencies. Lower audio frequency components of both input signals 30, 31 appear at the secondary winding of transformer 50 for monophonic reproduction by a sound reproducer 53 connected thereto, and the higher audio frequency components of both signals 30, 31 are reproducible stereophonically by respective sound reproducers 40, 49. The low impedance of transformer 50 to higher frequencies is provided by capacitor 54. Transformer 50 may comprise two windings connected one to each stage 32, 41, each with an intermediate tapping defining two primary sections (Fig. 2, not shown). Transistor amplifiers may be used in place of valves 33, 34, 42, 43.
Patent GB-363212-A (GB)
Title: Improvements relating to electric generator brushes
IPC: H02K5/14
Filed: 1931-02-06
Abstract: 363,212. Brushes and brush-holders for dynamos. RECORD, J. W. and RECORD ELECTRICAL CO., Ltd., Atlantic Street, Broadheath, near Manchester. Feb. 6, 1931, No. 3795. [Class 35.] Brushes for magneto - type generators consist of wires a projecting from a holder b which also carries a guard c upturned at its end d to protect the wire tips, the holder being slidably mounted in a socket f and held by a spring clip h which may be a plate with a pip i on it. A pin limits the exposed length of the brush, which length is adjustable if the pin passes through one of several holes in the holder. If the holder b is shaped as shown in Fig. 3, the wires are of unequal length and have different periods of vibration.
Patent GB-295902-A (GB)
Title: Improvements in cigar cutters
IPC: B24D15/08
Filed: 1928-02-08
Abstract: 295,902. Miethe, G. A. Feb. 8, 1928. Cigar cutters.-A cigar cutter g is combined with a twin-wheel knife-sharpener a. The bentmetal casing b beaded at the upper edge d and end d<1> acts as a guide for the correspondingly beaded cutter blade f; complete withdrawal is prevented by a pin i.
Patent GB-705979-A (GB)
Title: 1.4-aralkyl piperazines and process for the preparation thereof
IPC: C07D295/073
Filed: 1952-02-14
Abstract: The invention comprises 1:4 aralkyl-piperazines in which the 1- and 4- positions are substituted by different aralkyl groups and the 2- and 5- positions may be substituted by alkyl radicles, and a process for preparing them by the reaction between an aralkyl halide and a 1-aralkyl piperazine, or by the reaction between an aldehyde and a 1-aralkyl-piperazine followed by reduction.  In examples, 1-benzhydryl-4-benzyl-piperazine is prepared by the reaction between benzyl piperazine and benzhydryl chloride, benzhydryl-piperazine and benzyl chloride, and between benzhydrylpiperazine and benzaldehyde, followed by reduction; substituted derivatives obtainable by similar methods include the 1-p-chlorbenzhydryl-4-p-methoxybenzyl, 1-p-chlorobenzhydryl-4-benzyl, 1-p-bromobenzhydryl - 4 - benzyl-, 1 - p - p1 - di chlorobenzhydryl-4-benzyl-, 1-p-methylbenzhydryl-4-benzyl-, and other combinations of methoxy, ethoxy, methyl-, propyl-, butyl-, chloro- and bromosubstituted products; and by selecting as piperazine derivative one having alkyl groups on the 2- and 5- carbon atoms as starting material, similar products to the above derivatives are also obtained.
Patent GB-762983-A (GB)
Title: Improved method and means for the manufacture of coated cord fabrics
Inventor: HICKMAN JAMES CLAUDE
IPC: B29C48/05
Filed: 1954-02-11
Abstract: 762,983. Moulding reinforced sheet material. JOHN BULL RUBBER CO., Ltd. Feb. 11, 1955 [Feb. 11, 1954], No. 4005/54. Class 87(2). [Also in Group VIII] A method of manufacturing coated cord fabric comprises the continuous successive steps of applying a coating to warp cords, feeding the cords in spaced relationship for each to enter a groove in co-operating pressure rolls which define between them a space adapted upon the application of pressure by the rolls upon the coated cords, to urge the coatings to flow laterally and cause them to coalesce, and pressing the continuous web so formed to make it smooth. As shown in Fig. 1 metallic or textile cords 7 are fed through an extrusion head 8, from which they emerge with a coating which may be a compounded or pure polymer. The coated cords divide into two groups 10 and 11 which pass over grooved guide rolls 12 and 15 and then pass together between grooved pressure rolls 13 and 14 under the action of which the coatings of adjacent cords are forced to coalesce so that a continuous, longitudinally corrugated web W emerges and is passed to smooth calendar rolls 16, 17 and 18 which remove the longitudinal corrugations to make the web smooth and flat. The extrusion head 8, as shown in Fig. 3, comprises a pair of coaxial discs 19 and 20, the latter having a central axially-directed port 22 through which the coating material is forced into a transfer chamber 23 which, at its periphery, opens into a coating chamber 24. Each cord 7 enters the coating chamber 24 through an entrance opening 25 and leaves, carrying a coating 9, through a coaxial exit opening 26. The openings 25 and 26 are spaced equally about a pitch circle concentric with the discs 19 and 20. The pressure rolls 13 and 14 as shown in Fig. 6 have deep grooves 28 which are arranged one half pitch out of phase, and which, when pressed together, define between them a space into which the coatings around the cords 7 are forced to coalesce with the coatings of adjacent cords and form flank portions 31 of the longitudinal corrugations of the continuous web W.
Patent GB-879773-A (GB)
Title: Improvements in or relating to the production of synthetic elastomers
Inventor: CROWLEY GERALD PATRICK
IPC: C08G18/00
Filed: 1958-02-07
Abstract: A process for the manufacture of shaped elastomers by mixing together at a temperature between 130 DEG C. and 180 DEG C. organic polyisocyanates and polyesters, polyesteramides or polyethers of melting point below 160 DEG C., or mixtures thereof, and optionally also glycols or triols as curing agents, and subsequently curing the mixture by heating at a temperature between 100 DEG C. and 150 DEG C. is characterized in that there is carried out between the mixing stage and the curing stage, a chilling step and a fabrication step in which the temperature of the reaction mixture is reduced to below 80 DEG C., and a fabrication step.  The chilling is carried out as soon as possible after mixing the reactants; the temperature is preferably reduced to between 20 DEG C. and 35 DEG C.  This step and the fabrication step can be effected by methods described in Specification 848,980.  Polyethylene adipate, glutorate and azelate, poly (pentamethylene glutorate) and polyesters from diethylene glycol and adipic or glutaric acids are suitable starting materials.  After the chilling stage there may be incorporated in the compositions catalysts such as tertiary amines, carbon black, iron oxide, glue, blanc fixe, whiting, lithopone, other pigments and plasticizers.  In Examples (1) polyethylene adipate, adipic acid and 1 : 5-naphthalene diisocyanate are reacted at 180 DEG C. for 10 minutes and then cooled to room temperature.  The chilled material is moulded with heating under pressure and further cured after removal from the mould; (2) 1 : 4-butylene glycol is added to the first reaction mixture and stirring is continued for 1 minute, in a process similar to (1); (3) 2, 4-and 2, 6-tolylene diisocyanates are used in a generally similar process; (4) and (5) an ethylene glycol-terephthalic acid polyester is reacted at 180 DEG C. for 10 minutes with 1 : 5-naphthylene diisocyanate in the presence of adipic acid and then cooled to room temperature.  Portions of the product are (4) moulded with heat and pressure and (5) dissolved in ethylene dichloride to form a lacquer for polyvinyl chloride. Specifications 848,837 and 861,220 also are referred to.
Patent GB-803133-A (GB)
Title: Improvements in or relating to automatic pilots for aircraft
IPC: G05D1/04
Filed: 1955-02-11
Abstract: 803,133. Automatic steering control systems. MINNEAPOLIS - HONEYWELL REGULATOR CO. Feb. 11, 1955 [Feb. 11, 1954], No. 4186/55. Class 38 (4). In an aircraft automatic pilot a surface for controlling the craft about the yaw axis is automatically controlled by a signal dependent on movement of the aircraft about that axis and by the integral of a signal dependent on movement of the aircraft about the roll axis. In Fig. 1 the rudder servomotor 1 of an aircraft automatic pilot is controlled through an electronic amplifier 2 by A.C. electrical signals developed by a rate-of-turn gyro 3. Followup signals dependent on rudder displacement are also applied to the input of amplifier 2 through a circuit 9. To facilitate turning by banking, signals dependent on aileron displacement, developed at 6, are applied to amplifier 2 to produce a rudder displacement suited to the angle of bank. If, nevertheless, sideslip should occur it is detected by a vane 7, movement of which applies correcting signals to amplifier 2. To counter long term sideslip the instantaneous sideslip is integrated at 8 and corresponding signals applied to amplifier 2. To cancel, during a deliberate turn, the effect of the rate of turn gyro which would otherwise resist the turn, signals developed by a rate-ofroll gyro 4 which are applied to the input of amplifier 2 are also integrated at 5 to produce signals, corresponding to the angle of bank, which are also applied to amplifier 2. Precise cancellation of these signals is ensured by feeding back their difference, e.g. to integrator 5. The integrators are of the type in which an integrating motor operates at a speed corresponding to the instantaneous value of an input signal. All the control signals are developed by movement of the sliders of centretapped potentiometers connected across supply transformer secondary windings. Airspeed compensation is provided for the signals at 17, 18, 19 and 21. Additional potentiometers are provided for manual control. In Fig. 2 (not shown), the input circuit of amplifier 2 is shown in detail together with the aileron servomotor which is controlled by a roll attitude gyro and a manual turn controller in addition to the rate-of-roll gyro which also controls the rudder. Compensation for altitude variations is provided in this arrangement. The servomotors operate the rudder and ailerons through selectively energized reversing clutches. Specification 654,041 is referred to.
Patent GB-923792-A (GB)
Title: Improvements relating to stepladders
IPC: E06C1/383
Filed: 1960-02-05
Abstract: 923,792. Step ladders. B. LAMBERTI. Feb. 5, 1960 [Oct. 21, 1959], No. 4189/60. Class 20 (2). A step-ladder adapted to fold laterally in the plane of the ladder comprises rungs 1 in two halves pivoted to the stiles 6, 7 and a central rod 3 and side members 8, 9 of the back rest connected by two similarly arranged rungs 30 and crossed links 11 to a central rod 10 and a platform 24 formed of a lazy tongs. To allow the ladder to fold, one end of each of the crossed links 11 slides in a slot and the lazy tongs 24 engage the top rung 1 by detachable pins and are connected to the top rung 30 by springs 23. When the back rest has been folded against the ladder 6, 7, a lever 21, Fig. 8, is operated which by means of a fork engages a projection 22 on a link 18 which raises the rod 3 and causes the ladder to fold laterally, a projection 28 on the bottom of the rod 3 simultaneously engaging a projection 29 on the rod 10 which is thus raised and causes the back rest to fold laterally. The ladder is spread laterally by levers 27 on the ends of the top rung.
Patent GB-1090770-A (GB)
Title: Improvements in seat reclining mechanisms
Inventor: CLEWS LEVI
IPC: B60N2/22
Filed: 1965-01-30
Abstract: 1,090,770. Adjustable seats. LEVI CLEWS. Jan. 5, 1966 [Jan. 30, 1965], No. 4200/65. Heading A4J. [Also in Division E2] The back rest of a vehicle seat is locked against angular adjustment by the interengagement of teeth 21, on discs 19 and 20, rotatably fast with frame members 14 and 15. On turning rod 13, against the action of torsion spring 28, the discs 19, 20 are sprung apart by coil spring 25, while the heads of rivets 23 ride on cam surfaces 27. On releasing rod 13, the torsion spring 28 rotates cam surfaces 27 in the reverse direction, thus urging the rivets 23 axially to re-mesh the teeth 21. The torsion springs urge the back rest forwardly.
Patent GB-366288-A (GB)
Title: Distributor for soap and like paste
IPC: A47K5/12
Filed: 1931-02-11
Abstract: 366,288. Delivering measured quantities of soap paste &c. MARTINACHE, (nee CORROYER), S. B. A., Acy-en-Multien, Oise, France. Feb. 11, 1931, No. 4243. Convention date, Feb. 13, 1930. [Class 106 (v).] A device for delivering definite quantities of soap or other paste comprises a cylindrical container 1 having an internal spring blade 16a turned by a handle 20 and adapted to force the paste towards an outlet orifice 5, the quantity forced out being determined by the capacity of an outlet passage formed by parallel lugs 11 between which the blade passes. An internal flap 8 with an elastic pad 9 normally closes a passage 6 leading to the outlet opening 5 and is secured to an axle 10 passing through the lugs 11. A spring retains the valve 8 on its seat and it is lifted by a projection 19 on the arm 16c carrying the spring blade 16a engaging a lever 13 fixed to the axle 10. The coiled portion 16b of the spring blade, which engages the periphery of the container, then pushes out the paste which is between the lugs 11. When the shoulder 19 frees the lever 13 the flap 8 closes, driving forward the mass of paste which separates it from its seat. On continued rotation of the handle 20 the coiled portion 16b of the spring blade passes over the closed flap 8. A ratchet 21 and pawl on the shaft 15 prevents reverse rotation. Mixing vanes 17, 18 keyed on the shaft 15 scrape the side walls of the container and have obliquely inclined ends 17a, 18a which feed the paste into the passage between the outturned ends 11a of the lugs 11. The container is filled through a sliding door 4.