baber/WOPTO huggingface dataset:
Patent GB-456733-A (GB)
Title: Improved automatic adjustment means for gearing having reciprocating or oscillating movement
IPC: F16D65/56
Filed: 1935-05-11
Abstract: 456,733. Cranks, links, and levers. ROWLAND, T. C. E., 49, Silhill Hall Road, Solihull, and PARKER, H., 71, Hazelhurst Road, King's Heath, Birmingham, both in Warwickshire. May 11, 1935, No. 13866. [Class 80 (iii)] [See also Group XXXIV] Automatic adjustment means for brake operating gear including a worm-wheel associated with the part through which a brake lever operates to apply the brake, a transverse pin in the body having a worm meshing with the worm wheel and having a ratchet wheel or other one-way drive device adapted to be operated automatically when excess motion occurs, has the said worm wheel mounted within a body itself mounted on the brake lever. In the form shown in Fig. 1, a body 3 engages a trunnion 4 on the brake lever 1 and is arranged around the actuating rod 2 over which is screwed a sleeve 5 having a worm-wheel 6 formed thereon. This wheel is engaged by a worm 9 mounted on a pin 8 carrying at one end a pair of ratchet wheels 10 with staggered teeth engaging a rack 11 pivoted at 12 to the lever, or to a fixed bracket, and drawn towards the lever by a spring 18. For normal movements, the ratchet wheels do not move far enough relatively to the rack for a tooth to be disengaged. If, however, due to wear, excessive movement is required to apply the brake, a tooth on the wheels will move beyond a tooth on the rack, so that on release of the brake the wheels and worm are given a rotation thus screwing the sleeve over the rod 2. In the construction shown in Fig. 4, a pair of brake shoes 20 are adapted to be expanded by a cam 21 against a drum 19. The cam pin 22 is actuated from a rod 25 through a lever 24 abutting the end 26 of an arm 23 on the pin. The abutting part 28 engages a screw 30 formed with a worm-wheel 31 adapted to be rotated by ratchet wheels engaging a rack 36 mounted by a flexible arm 37 on a lug 38 on the back plate of the brake. According to the Provisional Specification, the invention is applicable to two sections of a rod connected by screw and nut gear and to clutches or brake bands used with epicyclic gearing.
Patent GB-1153528-A (GB)
Title: Production of Aromatic Polymers
Inventor: BARR DENNIS ARTHUR
IPC: C08G75/20
Filed: 1967-03-23
Abstract: 1,153,528. Aromatic polymers. IMPERIAL CHEMICAL INDUSTRIES Ltd. 14 March, 1968 [23 March, 1967], No. 13892/67. Addition to 1,153,035. Heading C3R. Aromatic polymers are obtained by reacting a bis-(halogenopheny] sulphonyl) benzenoid compound, alone or with another dihalogenobenzenoid compound, with an alkali metal hydroxide and/or an organic onium hydroxide by the displacement of alkali metal halide and/or organic onium halide. The bis-(halo. genophenyl sulphonyl) benzenoid compound may have the formula X-C 6 H 4 -SO 2 -Ar- SO 2 -C 6 H 4 -X where X is a halogen atom and Ar is a bivalent aromatic radical derived from benzene, biphenyl, a terphenyl or a fused-ring aromatic hydrocarbon containing not more than three rings. In examples, polymers are obtained by reacting potassium hydroxide with 4,4<SP>1</SP>-bis (4-chlorophenyl sulphonyl) biphenyl, with mixtures of 4,4<SP>1</SP>-bis- (4.chlorophenyl sulphonyl) bisphenyl and bis-(4-chlorophenyl) sulphone, with 1,3-bis-(4-chlorophenyl sulphonyl) benzene and with 1,5-bis-(4-chlorophenyl sulphonyl) naphthalene.
Patent GB-415359-A (GB)
Title: Improvements in and connected with the extrusion of metallic cable and like sheaths
IPC: B21C23/28
Filed: 1934-05-09
Abstract: 415,359. Making cased electric cables &c. COMPAGNIE GENERALE D'ELECTRICITE, 54, Rue la Boetie, Paris. May 9, 1934, No. 14065. Convention date, May 13, 1933. [Classes 83 (ii) and 83 (iv).] Squirting.-A press for the extrusion of tubes from lead, aluminium, brass &c. comprising a hydraulic ram 3 and a mandrel 4 which enters the bore in a pierced billet, is modified for the extrusion of sheaths by the provision of a free space axially of the whole apparatus for the cable or other core 10. The extruded sheath 9 may be compressed on to the core 10 by a drawing-die 15. The billets may be in two parts 12, 13 with serrated interengaging faces 14, to facilitate the extrusion of continuous lengths.
Patent GB-1102543-A (GB)
Title: Compounds related to vitamin a and their conversion to vitamin a aldehyde
IPC: C07C47/38
Filed: 1965-04-02
Abstract: The invention comprises compounds of formulae <FORM:1102543/C2/1> wherein R is C1- 6 alkyl.  The trienyne is prep ared by reacting beta-ionone with a Li, Na or Mg (Grignard) derivative of a 1-alkoxy-3-methylhexa-1,3-dien-5-yne; the tetraene by partially reducing the trienyne, e.g. with Pd poised with Pb, or with LiAlH4. Acid hydrolysis of the tetraene gives Vitamin A aldehyde.  The metal derivatives of 1-alkoxy-3-methylhexa-1,3-dien-5-ynes may be made, e.g. by reaction with LiBu or EtMgBr in ether, or with LiNH2 or NaNH2 in liquid NH3.
Patent GB-1049832-A (GB)
Title: Improvements to optical masers
Inventor: BOOT HENRY ALBERT HOWARD
IPC: H01S3/223
Filed: 1963-04-10
Abstract: 1,049,832. Lasers. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 5, 1964 [April 10, 1963], No. 14353/63. Heading H3B. A laser comprises a gas discharge tube filled with a gaseous mixture of helium at a pressure of at least 10 mm. of mercury and another gas at a lower pressure, the tube being provided with electrodes for pulsed excitation of the gas discharge. The gaseous active medium may be a helium/neon mixture at pressures of 10 to 100 mm. mercury and 1 to 5 mm. mercury respectively. Alternative gaseous mixtures are helium/nitrogen and helium/carbon monoxide. Excitation is by means of D.C. pulses of several kv. applied to electrodes in the form of metal rings around the centre and ends of the tube. If the pulse repetition frequency is high enough the operation of the laser is practically C.W. The electrodes may be arranged in groups along the tube and pulsed sequentially. The resonant cavity is formed by multilayer dielectric concave mirrors.
Patent GB-136471-A (GB)
Title: Improvements in the Lubrication of Valve Mechanism for Internal Combustion Engines.
Inventor: GUY SYDNEY SLATER
IPC: F01M9/10
Filed: 1919-06-06
Abstract: 136,471. Guy, S. S. June 6, 1919. Lubricant c!iffused in gas.-In an engine of the type described in Specification 121,977, [Class 7 (vi), Internal-combustion engines, Valves &c. for], lubrication of the valve mechanism is effected by oil-laden air circulated by the piston. The casing 3 enclosing the valve mechanism is open to the crank casing through an orifice 4 and through a second orifice 5 surrounding a valve-lever 6. An air-hole is provided on the casing 3 at 7.
Patent GB-1143389-A (GB)
Title: An electric machine having a vertically disposed shaft and a concrete stator housing
IPC: H02K1/18
Filed: 1966-03-31
Abstract: 1,143,389. Securing electric machine stators to supports. SIEMENS SCHUCKERTWERKE A.G. 31 March, 1966 [2 April, 1965], No. 14412/66. Heading H2A. In an electrical machine having a vertical shaft and a stator core 1 secured to a surrounding annular concrete housing 2 by a plurality of ties 3 which transmit tangential and radial forces, such ties have means to modify their resonant frequencies to lie outside frequency range of vibrations occurring in the ties during machine operation. As shown, the means are weights 4, but in other embodiments they comprise a synthetic resin damping covering, sand or an intermediate support in a tube within the housing, or connectors at the cross-over points in a construction where the ties cross one another. Reference has been directed by the Comptroller to Specification 1,092,817.
Patent GB-972957-A (GB)
Title: New anthraquinone dyestuffs and process for their manufacture
IPC: C08K5/3492
Filed: 1963-04-10
Abstract: An orange polyvinyl chloride foil is made from polyvinyl chloride, dioctyl phthalate and a pigment of the formula: <FORM:0972957/C3/1> Specification 205,525 is referred to.ALSO:The invention comprises dyes of the formula <FORM:0972957/C4-C5/1> where X is a halogen atom, for example chlorine, bromine or fluorine.  The dyes are made by condensing 2 mols. of a 1-amino-8-halogenoanthraquinone with 1 mol. of cyanuric chloride and condensing the product with ammonia. The dyes vat dye and print natural or regenerated cellulose and are pigments for a variety of organic products.  Specification 205,525 is referred to.
Patent GB-795496-A (GB)
Title: Apparatus for the automatic disconnection of knitting machine upon the breaking of one of the threads for the knitted article
IPC: D04B35/10
Filed: 1956-05-09
Abstract: 795,496. Knitting-machine stop motions. ETABLISSEMENTS GARNIER-LUNEAU. May 9, 1956 [May 18, 1955], No. 14473/56. Class 74 (2). When thread 13 breaks, a feeler 9 swings downwardly, bringing a knife-edge 8 from under the cranked end of a rod 16, which there upon rotates in its bearings 5 to bring a projection 18, which it bears, into the path of a pin 26 on a member 27 rotating with the machine, so that the rod 16 is slid in its bearings to cause its other end to bear against a lever 22 and rotate a spindle 21 to disconnect the machine from its drive, through members 23, 24, 25. To start the machine, the yarn is replaced, the feeler 9 brought into engagement with it and the drive re-engaged, a spring returning members 25, 24, 23, 21, 22 and 16 to their initial positions.
Patent GB-563241-A (GB)
Title: A new or improved tensioning device for a yarn throwing machine of the up-twister type
IPC: B65H59/36
Filed: 1942-10-16
Abstract: 563,241. Tension devices for uptwister machines. LASCH, H. Oct. 16, 1942, No. 14490. [Class 120 (ii)] In a yarn tension device for an up-twister machine, the yarn from the supply package and flyer passes through two movable guides, one of which functions as the balloon guide, the relative position of the guides being determined by the tension'in the yarn against the influence of counterweight means, increases in tension causing less deflection of the yarn and resulting in a lowering of the balloon guide to shorten the balloon and decreases in tension having the opposite effect. The balloon guide 15 is formed on a member 11 pivotally carried in the boss 5 of portion 3 of the carrier member 1 comprising jaws 2, 6 connected by a screw 8 to the transverse bar x of the machine. The member 11 is supported by a loop 19 of a wire 18 carried by the bracket 10 pivoting on a pin 7 of the carrier 1. The bracket 10 also carries the yarndeflecting member 16, 17. The wire 18 is extended to carry a counterweight 20, adjustable by means of a screw 21 to give a predetermined working tension of the yarn. The carrier 1 is furnished with a projection 4 to hold, temporarily, the flyerand spindle button, removed from the spindle, when changing a bobbin &c. When the tension in the yarn between the member 17 and the receiving package increases, the guides 15, 17 will take up the dotted positions so as to lessen the defiection and shorten the balloon. The reverse action ensues when the tension of the yarn decreases.
Patent GB-1305280-A (GB)
IPC: F16D65/097
Filed: 1970-03-25
Abstract: 1305280 Disc brakes AIRHEART PRODUCTS Inc 25 March 1970 [3 April 1969] 14512/70 Heading F2E A disc brake assembly comprises a pair of support members 16, 17 relatively movable towards each other in the direction of arrows 21 but retained against relative separation in other directions, a pair of clamping parts 27, 28 including brake linings 30 engageable with opposite faces of a disc 14 the parts 27, 28 projecting through an opening 18 in member 17 and being carried by the support members 16, 17 and actuating means in the form of a lever 40 to move part 28 towards the disc 14, the other part 27 being moved by reaction and resultant accommodating movement of member 17 towards member 16. The member 16 which is fixed to a rigid support flange 20 is of L-shape with a vertical plate 16a and a horizontal plate 16b, and the member 17 comprises a horizontal plate; tongues 22 of plate 16 are received in guide slots 23 formed in member 17 and tongues 24 of plate 17 are received in guide slots 25 in horizontal plate 16b. Clamping ports 27, 28 include metal plates 29 which are formed with tongues 32, 36 engageable against the top surface of plate 17. The clamping parts 27, 28 are fitted on to the arm 46 of a bowed spring 47 and the opening 18 is of sufficient size to permit easy withdrawal of parts 27, 28. Lever 40 has a cam face 43 and movement of linkage 44 in the direction arrow 45 causes face 43 to move clamping part 28.
Patent GB-570674-A (GB)
Title: Improvements in and relating to apparatus for the heating of rooms by circulating hot water
IPC: F24B1/183
Filed: 1943-09-06
Abstract: 570,674. Heating buildings. BAUER, F. W., and JELLINEK, B. F. Sept. 6, 1943, No. 14554. [Class 64 (i)] [Also in Group XI] An arrangement for heating a room comprises a removable water heater, preferably of the tubular type, adapted to fit an open fireplace, connected by flexible connections to a radiator in the room. The heater comprises tubes h following the rear wall of the fireplace, bent at i to form the grate, and opening into a header j which is continued at the sides as at jl to open into the two end tubes h. An upper header k extends along the sides as at k<1> to a front header l into which two of the tubes h are extended at hl instead of being connected to the header k. Connections m<1>, m<2> are provided for by the radiator, and supports n<1>, n3 n4 are welded to the lower part of the structure. In a modification, some tubes h extend only up to the point f3 where a header is provided, two of the tubes h being continued to the flue where they terminate in a transverse tube. Specifications 139,675 and 241,712, [both in Class 64 (i)], are referred to.
Patent GB-252900-A (GB)
Title: Improvements in or relating to the construction of work baskets, and the like
IPC: D05B91/14
Filed: 1925-06-04
Abstract: 252,900. Koop. V. C. June 4, 1925. Thread reets.-Reels g are shown as fitted with resilient celluloid clips or sheaths h to prevent unintentional unwinding &c., and to assist in drawing off the thread.
Patent GB-554038-A (GB)
Title: Change speed power transmission apparatus employing electric motors
IPC: H02K17/36
Filed: 1941-11-13
Abstract: 554,038. Control of two AC motors. TRYTHALL, W. C. Nov. 13, 1941, No. 14641. Drawings to Specification. [Class 38 (iii)] A machine tool &c. is driven at any one of a number of speeds by two pole changing A.C. induction motors, the shafts of which drive the load through differential gearing. Each motor has two windings so as to give four speeds, and the load runs at the average speed of the two motors. Specification 339,915, [Class 38 (iii)], is referred to.
Patent GB-838755-A (GB)
Title: Dyestuffs of the anthraquinone series
IPC: C09B5/40
Filed: 1958-05-07
Abstract: Bromo-benzanthrone-Bz-1-carboxylic acid is made by treating benzanthrone-Bz-1-carboxylic acid in chlorosulphonic acid with bromine in the presence of iodine. Bromo-benzanthrone-Bz-1-carboxylic acid chloride is made by treating the acid in nitrobenzene solution with thionyl chloride Specification 779,508 is referred to.ALSO:The invention comprises greyish-olive to olive-green vat dyestuffs which are obtainable by halogenating dyestuffs of the formula <FORM:0838755/IV(c)/1> in an aluminium halide melt.  Besides the introduction of halogen atoms a ring closure occurs to form what may be a coeramidonine or carbazole ring. The halogenation may be effected using free halogens, sulphuryl chloride or chlorosulphonic acid or by using the aluminium halide melt as halogenating agent by adding oxidizing agents such as alkali-metal nitrobenzene sulphonates, ferric chloride or pyrolusite. Melting-point depressants and halogenation catalysts may also be present.  Examples are given. Specification 779,508 is referred to.
Patent GB-218460-A (GB)
Title: Improved sheath or cover for index cards, record papers and other articles
IPC: B42F19/00
Filed: 1923-06-05
Abstract: 218,460. Wrigley, H. W., and Ridgway, J. A. June 5, 1923. Index cards &c.-A transparent sheath A for protecting the edges of index cards, leaves, or sheets, is detachably secured to the card edge by means of tongues or projections a, which engage in slits or eyelets formed or fixed to the cards. Various forms of tongues are described, and the sheath may be used as a pocket for tickets &c.
Patent GB-578175-A (GB)
Title: Improvements relating to safety razors
IPC: B26B21/00
Filed: 1944-08-04
Abstract: 578,175. Safety razors. LEVENE, I., and LEVENE, S. Aug. 4, 1944, No. 14877. [Class 30] A safety razor comprising a guard 1, blade 7 and clamp 9 has a handle 12 with an internally screwed end 14, which may be attached to a screwed stud 10 on the clamp 9 for shaving or to a screwed stud 5 in a recess 6 in one end of the guard for storage, the handle in each position serving to hold the parts together. In the position shown in Fig. 3, the handle bears against the end of the clamp 9 which is slightly longer than the guard so that the lateral pressure binds the stud 10 against the side of the hole 4 in the guard. The handle may be hollow to hold spare blades, soap, brush or styptic pencil, and is threaded at 16 to receive a cap covering the head in the storage position, the whole then having the appearance of a fountain pen. Blades may also be stored in pockets in the cap.
Patent GB-779547-A (GB)
Title: Improvements in or relating to apparatus for forming a combustible charge for an internal combustion engine
IPC: F02B75/22
Filed: 1956-05-14
Abstract: 779,547. Charge forming apparatus; inlet and exhaust pipes. GENERAL MOTORS CORPORATION. May 14, 1956 [May 31, 1955], No. 14902/56. Classes 7 (2) and 7 (3). Apparatus for forming a combustible charge for an internal combustion engine comprises an air box having an air inlet controllable by a valve therein a plurality of substantially identical intake conduits which communicate at one end with the engine cylinders and at the other end with the air box the conduits being adapted to produce dynamic supercharging of the cylinders by ram effect and fuel supply means for mixing fuel with the air delivered to the cylinders. Air enters an air box 52 by way of an inlet 54 controlled by a butterfly valve 56. It then passes by way of a filter 60 into an upper part of the air box from which it can enter individual passages 62 leading to the separate cylinders. Fuel is supplied to nozzles 78 by a pump 64 driven from the engine camshaft 44. A diaphragm 80 is connected to the pump 64 by means of a link 82 movement of the link operating to vary the lift of the pump cam. The diaphragm controls the flow of fuel according to the air flow being operated on on its under side by the pressure of air in the air box. Each of the individual intake pipes 62 is made so as to resonate at one or more engine operating conditions. This will cause a surge of charge toward the intake valve 42 when the valve is opening. The pump 64 includes a separate positive displacement cell for each cylinder the cells being arranged radially about the drive shaft 70 so as to engage a variable lift cam. It is possible to employ continuous flow injection. The exhaust passages are indicated at 32.
Patent GB-111829-A (GB)
Title: Improvements relating to Grinding Hardened Steel Screws.
Inventor: VIDAL CHARLES HENRY
IPC: B24B19/02
Filed: 1917-10-15
Abstract: 111,829. Vidal, C. H. Oct. 15, 1917. Screws, grinding and lapping.- The screw A mounted in a chuck and rotated at a suitable speed is treated by a tool I in the form of a screw, of the same pitch and the same. hand as the work, which is mounted on a parallel axis and rotated in the same direction by independent means, so that there is no tendency to relative axial movement between the tool and the work. The tool may be made of steel, cast-iron, copper, or a metal alloy, coated with abrasive material, or it may be formed of abrasive material. The invention is applicable to the treatment of internal screws.
Patent GB-273636-A (GB)
IPC: B28B11/00
Filed: 1927-06-07
Abstract: 273,636. Quartz et Silice. July 15, 1926, [Convention date]. Induction furnaces.- A furnace for use in the production of articles of fused silica comprises a graphite muffle e supported by a carbon ring f having an opening through which articles can be introduced into the muffle. A tubular casing h, fitted on the ring f, is filled with heat-insulabing material g and is wound with a coil i which is traversed by highfrequency currents.
Patent GB-516113-A (GB)
Title: Improvements in or relating to colour-photography
IPC: G03C7/18
Filed: 1938-05-19
Abstract: 516,113. Colour photography. DUFAYCHROMEX, Ltd., and CROOKS, D. A. May 19, 1938, No. 14994. [Class 98 (ii)] The contrast of a master multicolour transparency (positive or negative) is reduced by combining with it in register an inverse transparency mask (negative or positive) of reduced contrast, the mask being representative of all the colours of the master, and being either black and white or of a colour which does not transmit the colours of the master in a substantial degree; and from the combined master and mask a copy is printed of greater contrast than the combination, thereby compensating for the reduced contrast and producing a copy of good colour saturation. The master may be of the additive or subtractive type, or a combination of both types; and in particular it may be of the multicolourscreen type. The mask may be copied from the master on a separate or on an attached sensitive layer, or may be made at the same time as the master by making an independent exposure of the subject itself. The copy of the combination of master and mask may be made by first printing therefrom a set of colour separation records of greater contrast, and from these preparing a composite colour transparency or paper print, e.g., by the carbon process, or by photomechanical printing. Details are given of the procedure when using a multicolour-screen transparency as master. Specifications 446,679 and 494,341 are referred to. The Provisional Specification states that the mask, when coloured, may if desired be modified in colour, or may be printed by coloured light, to modify independently the colours of the master when combined with it.