baber/WOPTO huggingface dataset:
Patent GB-419735-A (GB)
Title: Improvements in electric arc lamps for projection lanterns
IPC: H05B31/00
Filed: 1933-05-17
Abstract: 419,735. Arc lamps. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and TRENCHAM, H., Oakthorpe, King's End, Ruislip, Middlesex. May 17, 1933, No. 14300. [Class 39 (i).] In electric projection arc lamps having means for driving the positive and negative carbons at a predetermined relative speed, a variable coupling between one of the carbons and the driving means comprises, a carrier 10 for the carbon having a driving arm 13 pivotally mounted thereon, a pivotal connection between the driving arm and a fixed point 15, and a sliding crosshead 18 through which connection is effected between the driving arm 13 and a driving link 17, means such as the screw 19 being provided for varying during operation the position of the crosshead in order to vary the speed of the carrier. In the example shown, the crosshead 18 is biassed by a spring 21 to the end of a slot in the link 17, to enable the carrier 10 of the negative carbon 5 to be moved forward to strike the arc. The link 17 is driven by a nut 11 riding on a screwed shaft 3. Pinions 9 connect this shaft to a similar shaft 2 which drives the positive carbon.
Patent GB-1011962-A (GB)
Title: Improvements in or relating to electrical control circuits
IPC: H04M9/08
Filed: 1964-04-09
Abstract: 1,011,962. Electric analogue calculating. NORTHERN ELECTRIC CO. Ltd. April 9, 1964 [May 14, 1963], No. 14677/64. Heading G4G. [Also in Division H4] An electric control circuit, e.g. for controlling the switching of amplifier channels in a twoway communication system, comprises two paths fed with respective first and second signal inputs and whose gains are controlled by the respective second and first signal inputs so that the output of the first path is proportional to the ratio of the first and second input signals and the output of the second path is proportional to the ratio of the second and first signal inputs. The control path outputs may control a bi-stable circuit whose output operates switches in the amplifier paths of a loud-speaking telephone. Fig. 1 shows an embodiment of the control circuit in which the two channels 10a and 10b each include a potential divider consisting of resistor 14a (or 14b) and diode 23a (or 23b). The impedance of the diode and therefore the gain or loss in the channel is controlled by the current flowing through the diode, which current is derived from the other channel input via the amplifier 18b (or 18a) and the rectifying circuit and filter 20b, 21b and 22b (or 20a, 21a and 22a), so that the output signal of the channel is proportional to the ratio of the signal in the one channel and the signal in the other channel.
Patent GB-120872-A (GB)
Title: Improvements relating to Concrete Slabs for Walls or the like.
Inventor: LYNDE FRANCIS GASCOIGNE
IPC: E04B1/61
Filed: 1918-09-11
Abstract: 120,872. Lynde, F. G. Sept. 11, 1918. Addition to 120,825. Walls.-Reinforced-concrete slabs without any projecting metallic parts are connected by wires c which are passed through transverse holes band have their ends twisted together, the joint being covered with concrete d The wires and twisted ends may lie in grooves or chases e formed in the faces of the slabs.
Patent GB-509951-A (GB)
Title: Method and mill for hot rolling strip metal
IPC: B21B39/12
Filed: 1938-05-18
Abstract: 509,951. Furnaces for heating strip metal. WORTHINGTON, W. May 18, 1938, No. 14822. Convention date, May 21, 1937. [Class 51 (ii)] [Also in Group XXII] Metal strip is heated as required when passing along roller conveyers by enclosing the roller tables, e.g. 53, 58, Fig. 7, in heating chambers 54, 59 with burners 55, 60 but where certain types of scale are desired on the finished strip some of the roller conveyers are open to the air. The rollers themselves may be water cooled. Fig. 8 shows top and bottom conveyer rollers 53 and 58 with metal topped refractory aprons 57 between, and the burners 55 and 60.
Patent GB-813741-A (GB)
Title: Improvements in screw and nut mechanisms
IPC: F16H25/22
Filed: 1954-05-20
Abstract: 813,741. Screw and nut gearing. BISHOP, R., JOHNSTON, R. H., and WHITLOCK, G. B. R. May 16, 1955 [May 20, 1954], No. 14863/54. Class 80 (3). In screw and nut gearing in which balls are arranged between complementary helical grooves in the screw and nut members and are adapted to circulate through return passages in one of the members the flanks of the grooves are formed so that the resultant of the forces acting on the balls during operation produces a substantial radial component which acts to move the balls successively into the return passages. In Fig. 1 the groove 3 in one member 1 has a flat base 3a with flanks 3b, 3c at included angles of 105 degrees thereto whilst the groove 4 is of V-form of an angle of 105 degrees. In either direction of relative operation of the screw and nut a radial component of force Rc tends to move the ball 5 radially out of the groove 4 into a return passage in the member 1. The return passage may be provided in either the screw or nut and, as shown in Fig. 7, consists of a deeper portion 6 connecting the ends of substantially one turn of the groove 3 of member 1. Additional turns of the groove 3 may also be utilized with additional return passages. The return path across one turn of a continuous groove in the nut member may be made by inserting a channel-like element in a slot cut through the wall of the nut.
Patent GB-612064-A (GB)
Title: Chucks for turret lathes
IPC: B23B31/20
Filed: 1946-05-17
Abstract: 612,064. Chucks. BECHLER, A. May 17, 1946, No. 14896. Convention date, March 12. [Class 83 (iii)] A gripping device for the bar in automatic lathes comprises a cone-collet 6 which is closed by a tube 8 actuated by pawls 11, the tail-ends of the latter being acted upon by a ring 16 held within the bearing-hole of a sleeve 17, which carries it along the spindle, so that it may shift radially should the tail-ends of the pawls not be regularly positioned about the axis of the ring.
Patent GB-129515-A (GB)
Title: Improvements in and relating to Temperature Indicators for Transformers and the like.
IPC: H02H5/04
Filed: 1918-09-13
Abstract: 129,515. British Thomson - Houston Co., (General Electric Co.). Sept. 13, 1918. Thermometers and pyrometers.-A temperature indicator for transformers has a non-inductive resistance 17 arranged in close thermal relation with the main winding of the transformer 10 and connected through an insulating transformer to the points 24, 25 to form one arm of a Wheatstone bridge. The other arms of the bridge consist of a resistance 22 with a zero temperature co-efficieint, and the two parts of the secondary winding of the transformer B which supplies current to the bridge. The fixed potential coil of an indicating instrument W is connected in series with a resistance 27 and the movable current coil between the points 25, 26. At the normal temperature of the transformer the bridge is balanced, but any variation of temperature causes a change in the value of the resistance 17 and disturbs the balance. The scale may be calibrated in degrees of temperature.
Patent GB-708422-A (GB)
Title: Improvements in or relating to delay blasting devices
Inventor: LOWE ARTHUR JAMES
IPC: F42B3/10
Filed: 1950-06-15
Abstract: 708,422. Blasting devices. IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 15, 1951 [June 15, 1950], No. 14950/50. Class 9(1) Blasting device for connecting detonating fuze to a plurality of explosive charges for detonation at predetermined intervals comprises a tubular metal sheath 1 surrounding a metal detonator tube 2 and connected at one end to a length 3 of flexible detonating fuze and crimped at the other end to a thick-walled tube 6 of soft rubber or neoprene. At the opposite end of the tube 6 is crimped a second metal sheath 9 joining the tube 6 to a detonator tube 12 which is surrounded by a metal sheath 11. The fuze 3 is waterproofed and has a. textile covering and a core of pentaerythritol tetranitrate. Short rigid metal tubes 7, 8, flanged at one end, are inserted in the ends of the tube 6 to keep the bore open and assist crimping of the sheaths 1, 9. The tubes 2, 12 each contain a secondary detonating charge 24 and a primary charge 23. An open-ended flanged tube 13 containing a compressed delay composition 25, preferably a lead salt of a polynitro-phenolic compound, is held in the tube 11 by a paper tube 10 and the joints between the detonator tubes and the metal sheaths are waterproofed by thin rubber tubes 29. Protuberances 15, 18 are provided on the detonator tubes to assist in positioning the sheaths 1, 9, 11. When the assembly is to be used a length 4 of detonating fuze is inserted in the open end 14 of the sheath 11 which is then crimped to to the fuze. On initiation of the fuze 3 the charges 23, 24 in the tube 2 are detonated. The flame gases enter the tube 6, bulging it out and thereby losing some energy and pass thence to ignite the delay composition 13, which in turn ignites the charges 23, 24 and fuze 4. The fuze 4 then detonates the charge attached to it. Initiation of the fuze 3 may be by a detonator, an explosive charge or a device according to the invention. Specifications 588,613 and 638,974 are referred to.
Patent GB-1268663-A (GB)
Title: Process and apparatus for desulphurizing and deoxidizing carbon-containing iron melts in a ladle
IPC: F27D27/00
Filed: 1969-03-21
Abstract: 1,268,663. Refining iron. RHEINSTAHL HUTTENWERKE A. G. March 21, 1969 [March 23, 1968], No. 14954/69. Heading C7D. By rotational stirring in the slag-metal boundary zone the iron is caused to move downwardly at the periphery of the ladle or other vessel, and upwardly at the centre, while a fine-grained material containing a calcium compound and carbon moves outwardly across the bath surface and upwardly at the periphery. Preferably the refining agent is calcium carbide, and ratio of the trajectory velocities of the iron and the agent exceeds 2: 1. Stirring may be effected by a rotating beam stirrer, the ends of which have a velocity of 1À8 to 3À5 m/sec.
Patent GB-1421065-A (GB)
Title: Hydraulic braking systems for vehicles
IPC: B60T13/14
Filed: 1973-03-29
Abstract: 1421065 Master cylinders; boosters GIRLING Ltd 13 March 1974 [29 March 1973] 15029/73 Heading F2F A braking system of the kind in which a master cylinder for supplying hydraulic fluid to a brake circuit is at least partially operated by fluid from a high pressure source under the control of a manually actuated valve has a master cylinder assembly comprising a housing 1 including a plurality of master cylinders each connected in at least one independent brake circuit, the valve supplying fluid to all the master cylinders so that a failure in one does not affect operation of the remaining cylinders. As shown three master cylinders 11 are arranged in parallel. Three pistons 4 work in angularly spaced bores 5 and have extensions 6 extending into a power chamber 2 fed with hydraulic fluid from an accumulator 22 via an inlet valve 21 operated by a rod 15 coupled to the brake pedal. If there is fluid failure the master cylinders may be operated by means of a plate 16 rockingly mounted on a domed shoulder 7 of rod 15. An antiskid system has a sensor 29 controlling a valve 27 connecting a space 28 in front of piston 4 with the chamber 2 so that if skidding is imminent the two spaces are connected by the valve to equalize the pressure and release the brakes.
Patent GB-820708-A (GB)
Title: Improvements relating to labyrinth seals
IPC: F01D11/02
Filed: 1958-05-09
Abstract: 820,708. Stuffing-box substitutes. GENERAL MOTORS CORPORATION. May 9, 1958 [May 14, 1957], No. 15031/58. Class 122 (5). A labyrinth seal between rotor and stator parts of an axial-flow compressor comprises rotary and non-rotary rings 31, 34, the latter ring being mounted so that it can move transversely of the rotational axis against resilient frictional resistance effected by springs 46 which are carried on circumferentially-spaced pins 42 passing through clearance holes 43. The pins 42 are secured to a stator part 39 and pass through the clearance holes 43 provided in a flange 37 formed on a ring 36 to which the sealing ring 34 is brazed or welded. The springs 46 are held between collars 47 retained on the pins 42 by pins or keys 48. The thickness of the ring 36 and the distance between the ring 34 and flange 37 are such that, in operation, heat generated by the contact of the ring 34 with ribs 33 formed on the rotary ring 31 is slow to dissipate thereby causing the ring 34 to expand and provide a small working clearance between the two rings.
Patent GB-568307-A (GB)
Title: Rotary reciprocating pump
IPC: F04B1/113
Filed: 1943-09-14
Abstract: 568,307. Pumps for gases and liquids. GORDON, H. H. (Builder-Thompson Engineering & Research Corporation). Sept. 14, 1943, No. 15050. [Classes 8 (i) and 102 (i)] A rotary reciprocating pump comprises a fixed circular cam around which rotate a series of equally spaced circular cams fixed together and surrounding by rings to which are fixed radial pistons moving in radial cylinders in an annular block rotating in a housing. The rotor 20 is formed with radial cylinder bores 22 and mounted between resiliently mounted bearing walls 18 in a housing divided by these walls into inlet and outlet chambers. The pistons 38 are mounted in opposite pairs integral with or detachably connected to rings 36 bearing through rollers on eccentric rings 35, themselves bearing on a shaft 30. The (three) eccentrics 35 are fixed together. The shaft is mounted eccentrically in a cover-plate 15b, its other end having an eccentric enlargement 31 in an extension of the cylinder block, to which the driving shaft 25 is secured. The cams rotate at twice the speed of the shaft and actuate the pistons. By turning the coverplate through 180 degrees, the flow is reversed. The rotor 20 is supported by roller bearings 23, and bearing plates 45 of porous metal are provided on the rotor ends ; these plates may be grooved, acting as centrifugal pumps to prevent linkage into the space around shaft 25 and lower bearing 23.
Patent GB-402349-A (GB)
Title: Improvements in or relating to fireplace surrounds
IPC: F24B1/198
Filed: 1933-05-24
Abstract: 402,349. Fireplaces. WILLIS, W. A., Old St. John's Buildings, Wimborne Road, and HAND, A. E., 56, The Avenue, Redhill Park, both in Bournemouth. May 24, 1933, No. 15063. [Class 126.] Metal edging members for use with tiled fireplace surrounds are formed by strips of metal having flat surfaces 6 and means, such as flanges 8, 9 for securing or keying the members to the cement with the surfaces 6 so disposed as to form a bevelled or inclined edge. In the form shown, one flange 8 is perpendicular to the front surface of the surround, and the other 9 projects into the cement at an oblique angle to the rear face. The side members are formed by bending blanks one end of which is first shaped so that a mitred top is formed, as shown in Fig. 3. The ends of the member at the top of the opening are preferably not mitred, and rest on the mitred tops of the side members. The exposed surfaces 6 may be fluted or otherwise ornamented.
Patent GB-1005381-A (GB)
Title: Improvements in or relating to architectural structures
Inventor: WALLER ROY ANTHONY
IPC: E01D19/04
Filed: 1961-04-26
Abstract: 1,005,381. Resilient mountings. KINS DEVELOPMENT Ltd. April 17, 1962 [April 26, 1961], No. 15073/61. Heading F2S.  A movement - permitting bearing block, generally of the kind described in Specification 878,222, is characterized in that the upper rubber surface 11, instead of being smooth and flat, is formed with a pattern of ridges 12 and with a low perimeter wall 13. The height of the wall is preferably slightly more than that of the ridges so that when the bearing is grouted to an overhead part, not shown, the wall 13 retains the grouting which forms a key with the ridges 12 and which may, if the overhead part has a vertical hole, be pressure fed through the hole. Slots 15 may be provided in the wall 13 to allow overflow of excess grouting. If desired the bearing block may have its bottom bearing surface formed with ridges and a perimeter wall for grouting to an underneath support. In a modification, Figs. 2, 3 (not shown), the radial ridges 12 are replaced by a series of transverse, parallel ridges. If the supported structure has only a rocking movement a solid rubber bearing block, without any interleaving plates, may be employed the block being anchored against horizontal movement by a dowel pin 17, Fig. 1, which passes upwards from the underneath support through, or partially through, the bearing block. In a further modification, Fig. 4, alternate ridges are formed with a half-dumb-bell cross-section. In all of the embodiments the height of the wall 13 may be less than that of the ridges. Reference has been directed by the Comptroller to Specification 878,222.
Patent GB-652771-A (GB)
Title: Improvements in or relating to stop-motion mechanisms for machines performing textile-operations on a series of threads
IPC: D02H13/00
Filed: 1948-06-04
Abstract: 652,771. Warp stop motion. KONINKLIJKE TRICOTFABRIEK G. J. WILLINK N. V. June 4, 1948. No. 15138. Convention date, June 17, 1947. [Classes 142(i) and 142(iv)] '[Also in Group VIII] A stop motion for controlling a warp of threads comprises a conduit 3, extending along one side of the warp 1, from which air under pressure is directed on to the warp by a nozzle 2 to carry a broken thread on to a carded roller 6 rotating on the opposite side of the warp to the conduit. The roller 6 draws the thread round a pin 9, extending along the warp on the same side as the roller 6, and which is attached by a yoke to a rotatable rod or tube 7, the yoke also carrying a pin 10 which is connected to a contact 12 of an electrical circuit. The pull of the thread causes the pins 9, 10 to revolve about the rotatable rod or tube 7 which movement closes the contact 12 to operate the stop-motion of the machine.
Patent GB-1525401-A (GB)
Title: Resin compositions
IPC: C08L61/28
Filed: 1975-08-01
Abstract: 1525401 Compositions of aminoplasts with aromatic/phenol resins ALBRIGHT & WILSON Ltd 1 Aug 1975 [16 May 1974] 15204/75 Heading C3R A resin composition comprises (a) a resin having repeating units of the formula wherein R is a divalent or trivalent aromatic hydrocarbyl or divalent or trivalent di(aromatic hydrocarbyl)oxy group which may bear inert substituents, Ar is a residue formed by removal of two nuclear H atoms from a phenolic compound having 1-3 OH groups, and n is 0 or 1, and (b) an uncured or partly cured condensate of formaldehyde (or a compound forming formaldehyde in situ) and a nitrogenous compound containing a group (or a group enolizable to said group), wherein Y represents a group joined to the C atom by an O, N or S atom, Z represents H or a group joined to the N atom by a C or O atom, or Y and Z together form a direct bond, said condensate containing at least two methylol groups per molecule attached to N atoms and providing 55-90 wt. per cent of the total weight of the resin and condensate. There may also be present 0À5-100 p.h.r. of an inorganic dispersing agent, e.g. one having at least one dimension less than 0À1 Á and all less than 15 Á, and/or a flame-retardant, lubricant or metal powder of particle size 0À2 Á-2 mm. In Examples 1 and 2 a resin from p-C 6 H 4 (CH 2 OCH 3 ) 2  and phenol is mixed with 50% aqueous di-/trimethylolmelamine mixture in 1 : 2 solids weight ratio and ethoxyethanol, and used to impregnate glass fibre mat, which is dried and laminated. In Examples 3-5, 2 : 3, 3 : 7 and 1 : 4 mixtures of the same resin with trimethylolmelamine are mixed with silica, MgO, Zn stearate and hexamethylene tetramine to give moulding compositions. In Examples 6-9 2 : 3, 3 : 7, 1 : 4 and 1 : 9 mixtures in ethoxyethanol are east.
Patent GB-515255-A (GB)
Title: Improvements in and relating to the dephosphorising of steel
IPC: C21C7/064
Filed: 1938-05-23
Abstract: 515,255. Steel. MEHTA, F. P. May 23, 1938, No. 15295. Convention date, June 4, 1937. [Class 72] Steel is dephosphorized by working a heat in a tilting basic open hearth furnace and controlling its composition to obtain a final slag containing not less than 20 per cent. of FeO and not more than 20 of SiO 2, transferring the slag to a ladle and then pouring blown Bessemer metal into the slag to cause filtration of the metal through the slag. The steel and slag from the ladle may be poured simultaneously into another ladle. The slag preferably contains 20-30 per cent. of FeO and in an example the slag contains 11.40 per cent. of SiO2, 2.44 per cent. of Al2 O3, 24.64 per cent. of FeO, 8.30 per cent. of Fe2O3, 4.36 per cent. of Mn 0, 39.80 per cent. of CaO, 3.46 per cent. of MgO, 4.35 per cent. of P2O5 and 0.5 per cent. of T2O2.
Patent GB-695959-A (GB)
Title: Improvements in or relating to vacuum cleaners
Inventor: LEWYT ALEX MILTON
IPC: A47L9/10
Filed: 1950-06-19
Abstract: 695,959. Dynamo-- electric machines. LEWYT CORPORATION. June 19, 1950, No. 15310/50. Class 35. [Also in Groups XXVII and XXVIII] An electric motor 46 driving a suction cleaner blower 48 is mounted for silent running on rubber cushions 33 on stepped portions of a pair of metal straps 32 having their ends secured to an annular casing ring 25 which is also stepped to accommodate cushions 47.
Patent GB-1533240-A (GB)
Title: Peptide derivatives of phosphonic and phosphinic acids
IPC: C07F9/32
Filed: 1976-01-26
Abstract: 1533240 Phosphorous containing peptides ROCHE PRODUCTS Ltd 26 Jan 1976 [27 Jan 1975 20 Nov 1975] 15434/78 and 15435/78 Divided out of 1533239 Heading C3H [Also in Division C2] The invention comprises compounds of Formula I and salts thereof wherein n is 1, 2 or 3; R<SP>10</SP> is H or a C 1-6  alkyl, C 3-6  cycloalkyl, (C 3-6  cycloalkyl)-(C 1-6  alkyl), aryl, or aryl-(C 1-6  alkyl) group said groups being optionally substituted by one or more amino, hydroxy, mercapto, methylthio, carboxy, or guanidino groups so as to form the characterizing residue of an L-α-amino acid of the type found in proteins; and any "aryl" moiety optionally being substituted by hydroxy, halogen nitro, C 1-6  alkyl or C 1-6  alkoxy; each R<SP>20</SP> (independently) and R<SP>30</SP> is the characterizing residue of an L-α-amino acid or  of the type found in proteins; R<SP>30'</SP> is H; or R<SP>30</SP> and R<SP>30'</SP> together form the characterizing residue of an L-α-amino acid of the type found in proteins; any amino or other functional groups present in R<SP>10</SP>, R<SP>20</SP>, R<SP>30</SP> and R<SP>30'</SP> optionally being in protected form; R<SP>40</SP> is Me or R<SP>41</SP>; R<SP>41</SP> is OH or a C 1-6  alkoxy protecting group; R<SP>5</SP> is H or a protecting group; with the proviso that at least one of R<SP>10</SP>, R<SP>20</SP>, R<SP>30</SP>, R<SP>40</SP>, R<SP>41</SP> and R<SP>5</SP> is a protecting group or is in protected form. When asymmetric the configuration at * is L and at ** is R. Preparation of I is by conventional synthesis of any of the peptide linkages in the molecule. In a modification, a starting material having mixed configuration at ** is used, and the resulting (RS) isomer mixture separated, e.g. by crystallization, chromatography, or fractional crystallization with a base, e.g. α-methylbenzylamine to give the desired R isomer.
Patent GB-723454-A (GB)
Title: Improvements in or relating to the manufacture of hydroquinone
IPC: C07C37/58
Filed: 1952-06-19
Abstract: Hydroquinone is obtained by subjecting p-diisopropenylbenzene to treatment with hydrogen peroxide in the presence of an electrophillic catalyst.  Acetone is also formed.  The reaction may be effected in an inert solvent, e.g. acetic acid, at a temperature not exceeding 60 DEG  C.  As electrophillic catalysts there may be used inorganic acids, e.g. sulphuric, perchloric, hydrohalic, fluoroboric and silicotungstic acids, earths that have been activated by acid treatment, and Friedel Crafts type catalysts, e.g. aluminium chloride, zinc chloride, boron fluoride and complexes of these latter substances with diethyl ether.