baber/WOPTO huggingface dataset:
Patent GB-708911-A (GB)
Title: Manufacture of benzohydryl ethers of amino alcohols in which the amino group is tertiary
Inventor: PHILLIPS RICHARD FIFIELD
IPC: C07D451/06
Filed: 1950-10-11
Abstract: The invention comprises benzhydryl ethers of tropine, pseudotropine and N-substituted hydroxypiperidines, the methiodide and methochloride of tropine benzhydryl ether, and the hydrohalides of 1 : 2 : 2 : 6 : 6-pentamethyl-4-hydroxypiperidine benzhydryl ether, and the manufacture thereof and of benzhydryl ethers of other aminoalcohols in which the amino group is tertiary, and salts (including quaternary ammonium salts) thereof, by reacting an aminoalcohol of the said kind with diphenyldiazomethane, and, if desired, treating the product with an acid or an alkylating or aralkylating agent.  Advantageously the reaction is carried out by heating together approximately equimolecular proportions of the aminoalcohol and diphenyldiazomethane at a temperature approaching the decomposition point of the latter, preferably in the presence of an organic solvent, the reaction mixture is treated with a water-immiscible organic solvent (e.g. benzene, toluene or ether) and an aqueous acid, the aqueous layer is treated with alkali and the basic ether is isolated as such or treated with an acid (e.g. a hydrohalic acid or methanesulphonic acid).  Hydrohalides may also be converted into other salts by metathesis, e.g. with silver methanesulphonate.  Examples describe the preparation of the following ethers of benzhydrol: (1) and (2) the tropine ether, isolated as hydrobromide; (3) the methiodide and methochloride of the tropine ether; (4) and (5) the methanesulphonate of the tropine ether; (6) the pseudo-tropine ether; (7) the hydrobromide of the N-methyl-4-hydroxypiperidine ether; (8) the hydrochloride of the b -dimethylaminoethyl ether; (9) the hydrobromide of the 1 : 2 : 2 : 6 : 6 - pentamethyl - 4 - hydroxypiperidine ether; (10) the tropine ether (free base).
Patent GB-1247412-A (GB)
Title: Improvements relating to apparatus for sorting objects
IPC: B07C5/06
Filed: 1969-05-15
Abstract: 1,247,412. Conveyers; shoots. INTERNATIONAL BUSINESS MACHINES CORP. 15 May, 1969 [16 May, 1968], No. 24813/69. Headings B8A and B8S. [Also in Division G1] A trough 1, 3, Fig. 2, feeds objects such as metal pins, needle bearings or wood dowels 2 into grooves 4 on a rotating disc 7 or conveyer belt where they are held in position by abutting a reference surface 5 and by suction applied to the bottoms of the grooves, Fig. 3 (not shown). Arms 20, 21, Fig. 1, assist pins into individual grooves and return excess pins by duct 36 to the trough, and a spring finger or pusher 22, Fig. 4 (not shown), moves the pins against the surface 5. As the disc rotates, the longest pins are knocked by a block 41 into a gravity collecting bin, and the next longest pins are removed by blocks 42-46 in turn, see, also Figs. 7a, 7b (not shown). A final release block 70 is provided, or this block may be replaced by an air jet forced through the vacuum orifices in the grooves. In Figs. 8 and 9 two nearly interengaging discs are provided and the pins are dropped between them and pushed into the grooves by means of a vee bar (84). Both the vee bar and a pin feeding trough (86) and also a funnel may be agitated by a vibrator (88). In a modification the grooves are on the interior surface of a ring and the pins are held therein by centrifugal force. The pins may be projected into the grooves by air pressure and collected by vacuum means or by magnets, and the pin release means may also use air jets or require the de-energization of induced magnetic fields or employ light reflecting from the pins into photoelectric cells.
Patent GB-1505904-A (GB)
Title: Process and apparatus for celaning particulate materials
IPC: B02C19/06
Filed: 1975-06-10
Abstract: 1505904 Reclaiming moulding sand SOC D'APPLICATIONS DE PROCEDES INDUSTRIELS ET CHIMIQUES 10 June 1975 [10 June 1974] 24832/75 Heading B3G Binding agents, for example, are removed from the surface of foundry moulding sand by introducing encrusted sand particles into a gas stream and projecting them against the inner surface of a rotating drum. In Fig. 2 a drum 1, which may be circular in cross-section, is rotated about its horizontal axis and contains a stationary tube 12 with slits in its wall through which streams of air are discharged. The sand falls into the streams via a bonnet 15 from pockets 22 in baffles 8 which convey the same upwardly from the drum bottom. In other embodiments two tubes 12 are provided and some of the drum walls are perforated for the outflow of sand grains freed of their gangue. Waste and fines in dust form may be carried away in an air current.
Patent GB-705034-A (GB)
Title: Improved crash-bar for motor cycles
IPC: B62J27/00
Filed: 1951-10-25
Abstract: 705,034. Road traffic signs. PROCTOR, O. A., and EPSEM, Ltd Oct. 21, 1952 [Oct. 25, 1951], No. 24944/51. Class 3(2) [Also in Group XXXI] A motor-cycle crash bar is provided at its ends with lamp fittings g having connections k for supply of current from a battery carried upon the motor-cycle. The crash bar comprises two tubular members a connected together by a screw-threaded stem b which passes through a lug c upon the down tube of the motor-cycle frame The lug c may be provided for the attachment of a side-car. Each member a is connected to the stem b by an internally screw-threaded union member d having a spigot part e brazed or soldered at f to the member a. Two tapered sleeves mare mounted on the stem b and engage in a doubly tapered aperture in the lug c. Each lamp fitting has two windows h, one window having a plain glass and the other a red glass so that white light is shown forwardly and red light to the rear of the motor-cycle.
Patent GB-361005-A (GB)
Title: Improvement in vulcanizing devices for tyre casings
IPC: B29C35/00
Filed: 1930-08-21
Abstract: 361,005. Vulcanizing tyres. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(Erikson, H. ; 77, Norcross Street, Lowell, Massachusetts, U.S.A.) Aug. 21, 1930, No. 25030. [Class 70.] A boiler 16, of which the top plate 15 forms a tyre mould, is joined as one unit with a stand B and gas burner E. The tyre is held by bead plates operated on by a clamp D. Specifications 4200/04 and 170,876, [both in Class 70, Indiarubber &c.], are referred to.
Patent GB-309363-A (GB)
Title: Improvements in or relating to drawing apparatus of spinning machines
IPC: D01H5/74
Filed: 1928-08-31
Abstract: 309,363. Tannwalder Saumwollspinnfabrik, (Assignees of Broch, F.). May 16, 1928, [Convention date]. Addition to 296,100. Rollers and roller heads.-In the high draft arrangement described in the parent Specification wherein the small, intermediate top roller is in the form of a sleeve and is so arranged on its spindle that under pressure it assumes an oblique position relatively to the bottom roller and runs on the end thereof, the spindle is dispensed with and the assumption of an oblique position is assured by making one end of the roller hollow, as shown in Fig. 1, or by making the roller of parts 4,5, Fig. 2, of different specific gravities. the journal 3 running in the usual recess and the journal 2 being guided in a claw resting on the front or rear roller. By choosing suitable proportions the pressure D on the sliver L may be made as small as desired, and the weight P of the roller is preferably high so that it has a high inertia and the influence of accidental forces is thereby eliminated. Grooves, fluting, teeth, or like means may be provided on the ends of the rollers to effect a positive drive of the top roller by the bottom roller.
Patent GB-406601-A (GB)
Title: Improvements in imitation-fire heating apparatus or stoves
IPC: F24C7/00
Filed: 1933-09-11
Abstract: 406,601. Imitation fires ; heating- stoves. THORNTON, J. E., 8, Hill Street, Jersey, Channel Islands. Sept. 11, 1933, No. 25047. [Classes 39 (iii) and 126.] A heating-apparatus comprises an imitation fire C projecting forwardly of a rear heating- chamber A and a reflector or mirror-wall B placed at such an angle above the fire as to reflect it. The fire may be of moulded translucent slabs, as in Fig. 4, or of imitation coal cobs, Fig. 6, illuminated through a window c by burners d in the heating-chamber. The chamber A may be hollow and of metal, heated by gas, oil, electricity, steam, hot water, or solid fuel. Alternatively, it may be a hollow or solid block of refractory material heated by gas, oil, or electricity, that shown in Fig. 4 being heated by gas burners D. The front wall of the block is inclined and the reflector B, which serves also to radiate heat, is attached to it. The reflector may be chromium plated or of stainless steel, and is preferably studded with small pyramidal points to scatter the light. As shown in Fig. 9, parts of the surface may be plane portions appearing brighter than the other parts. In the case of a refractory block, the reflector is attached to the front wall, as in Fig. 4, whilst in the case of a hollow heating chamber it may form the front wall, as in Fig. 6, or may be attached to, and in close contact with, it. It may be placed in contact with steam or hot-water pipes in the chamber. Alternatively, an air-space may be left between the reflector and the heated parts. To increase the heat transfer to the reflector, ribs or gills b1, Figs. 6, 8, may be attached by welding &c. to the back ; or the reflector may be formed of a thick plate and the gills formed by casting, rolling &c. as in the form shown in Fig. 4. A semi-matt or broken-surfaced hearth-plate E, Fig. 6, may be provided, illuminated by light passing through a yellow screen e, which may be removably held in guides to permit the use of screens of different colours. Alternatively to the screen e, a parti-coloured cylinder may surround the light and be adjustable by hand to vary the colouration, and be rotated by a spinner device through reduction gearing to provide a constantly-changing colour effect. Stoves similar to that shown in Fig. 6, but heated respectively by an oil lamp and by electric heating elements, are illustrated.
Patent GB-389396-A (GB)
Title: Improvements relating to electric motors
IPC: H02K5/22
Filed: 1932-09-08
Abstract: 389,396. Motor supports. BRITISH SANGAMO CO., Ltd., Cambridge Arterial Road, Enfield, Middlesex, and LANPHIER, R. C., 13, Marlborough Road, St. John's Wood, London. Sept. 8, 1932, No. 25066. [Class 35.] A cover for an electric motor comprises a cupshaped member a embracing the motor and having extensions b for fixing purposes, the motor being rigidly mounted in the cupshaped member to form a unitarv structure. The cover is particularly applicable for mounting a motor as described in Specification 384,880 and for that purpose it has an apertured boss e to receive the core of the motor. The base is also formed with an aperture f for the supply conductors and holes g for the passage of screws. The extensions b are bent to form fixing lugs c.
Patent GB-1040945-A (GB)
Title: Polyalkylphenols
Inventor: BONDY HERBERT FREDERICK
IPC: C07C37/16
Filed: 1963-06-24
Abstract: A process for the production of polyalkyl phenol comprises feeding to a reaction zone an aliphatic alcohol, an alkyl phenol containing at least one unsubstituted position in the nucleus, and in the reaction zone subjecting the alkylphenol to vapour phase alkylation with the aliphatic alcohol at a temperature in the range 250-450 DEG  C., in the presence of a solid alkylation catalyst preferably activated alumina.  The phenol may be monomethyl or dimethyl phenol e.g. 3,5-dimethyl phenol. Preferably the alkylation is carried out at substantially atmospheric pressure and at a temperature in the range of 250-450 DEG  C.  In an example a mixture of 3,5-dimethyl phenol and methyl alcohol in a molecular ratio of 1 to 1 are passed over activated alumina heated to 360 DEG  C. and the product condensed, and from this mixture of phenols 2,3,5-trimethyl phenol was isolated. In a further example equimolar amounts of metacresol and methyl alcohol are passed over granular activated alumina at 350-360 DEG  C. and the product which contains various di- and tri-methyl phenols was separated by fractional distillation to produce 2,5-xylenol which was reacted by recycling through the column with methanol to trimethyl phenols.
Patent GB-665721-A (GB)
Title: Process for manufacturing oil gas
IPC: C10G9/00
Filed: 1949-09-30
Abstract: 665,721. Oil gas generation. GAS MACHINERY CO. Sept. 30, 1949 [Oct. 1, 1948], No. 25128/49. Class 55 (ii). In an oil gas generating process as described in Specification 665,720 in which gas is alternately generated after intervening blow periods in each of a pair of units 20, 21, comprising fixing and combustion - vaporizing zones 22, 23 and 24, 25, steam is introduced at the gas exit of the fixing zone of one unit during the make stage of the other unit to provide superheated steam there. for. Air and fuel oil, tar, gas, &c. are admitted into the respective unit for the blow stage, or preferably air may be passed to the unit through the fixing and combustionvaporizing zones of the other unit as in Specification 665,720. Gas oil, diesel oil, kerosene, gasoline, or propane, butane, &c. may be utilized, as may petroleum oils of high residual carbon content.
Patent GB-534629-A (GB)
Title: Process for the manufacture of gas-filled coiled coil electric incandescent lamps
IPC: H01K3/02
Filed: 1939-09-07
Abstract: 534,629. Incandescent e l e c t r i clamps. VEREINIGTE GLUHLAMPEN UND ELEKTRIZITATS AKT.-GES. Sept. 7, 1939, No. 25224. Convention date, Sept. 6, 1938. [Class 39 (ii)] A process for the manufacture of coiled-coil gas-filled incandescent lamps consists in mounting the filament in the lamp, evacuating it, rinsing out several times with dry nitrogen and between two of these rinsing stages, preferably the last two, incandescing the filament at a voltage between 125 per cent. and 140 per cent. of the rated voltage of the lamp before finally filling with rare gas, e.g. krypton, and a little nitrogen. By subjecting the filament to this treatment, its liability to burn out with the excess momentary voltages that may occur in an ordinary supply circuit is reduced and the final nitrogen content can be brought down to less than 5 per cent. Specification 384,309 is referred to.
Patent GB-1524450-A (GB)
Title: Regenerable electrical capacitors
IPC: H01G/
Filed: 1976-06-18
Abstract: 1524450 Capacitors SIEMENS AG 18 June 1976 [20 June 1975] 25254/76 Heading H1M In a capacitor comprising polypropylene strips 3, 4 metallized with aluminium layers 5, 6 and wound into a roll, the metallized layers have a surface conductivity of 0À3 to 0À45 per square, in which range the reduction in capacitance resulting from use at high voltage is minimized.
Patent GB-722073-A (GB)
Title: Process for the manufacture of articles of natural or synthetic rubber or other elastomers
IPC: C08K9/04
Filed: 1952-10-09
Abstract: For ease of incorporation of fillers prepared from white, hydrophilic oxides of metals or metalloids or natural or synthetic silicates of particle size less than 250 mm  into natural rubber, synthetic rubber and other elastomers, some at least of the surface free hydroxyl groups of the filler are reacted with an alcohol, aldehyde, ketene, alkylene oxide, alkylene imine, or an ester, ether or amino compound of isocyanic acid.  The fillers are exemplified by silicon dioxide, titanium dioxide and aluminium oxide obtained pyrogenically from their compounds, preferably their halogen compounds, by silica-silicate products precipitated by means of acid from suspensions or solutions of silicates of metals of the 1st to 4th group, e.g. of silicates of sodium, potassium and aluminium, and by preparations from the natural silicates haloysite, kaolin, montmorillonite and wollastonite, preferably pre-treated with a chlorinating agent such as thionyl chloride.
Patent GB-693091-A (GB)
Title: Improvements in and relating to centrifugally operated clutches for washing machines
IPC: D06F37/36
Filed: 1951-10-30
Abstract: 693,091. Electric motors. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 30, 1951 [Oct. 31, 1950], No. 25344/51. Class 35. [Also in Groups VIII and XXIV] The rotor 23 and motor shaft 24 of a clothes washing and spin drying machine (see Group VIII) are movable axially by means of an expansible member 31 to which liquid may be supplied by a pump 36, centrifugal force on the liquid in the member 31 causing it to expand. The member 31 may be a nylon or metal bellows to which oil is supplied by the pump 36 when a solenoid 50 is energized automatically so as to drive a valve 48 upwardly and close an opening 56. This causes the pump 36 to pass oil through a passage 46 in the shaft 24 into the bellow 31. The bellows is almost immediately filled since the capacity of passage 46 is much greater than that of a discharge port (not shown) in the baseplate 34 of the bellows 31. Expansion of the bellows raises the rotor 23 and shaft 24 and operates clutch and brake mechanism (see Group XXIV) to change over from washing to spin drying. Specification 625,325, [Group VIII], is referred to.
Patent GB-443964-A (GB)
Title: The manufacture of unsaturated hydroxy-ketones related to the corpus luteum hormone
IPC: C07J75/00
Filed: 1934-09-03
Abstract: Unsaturated hydroxy-ketones of the pregnane series related to sexual hormones and known as pregnenolones are prepared by converting the esters of 3-hydroxy-bisnor-cholenic acids by means of organo-metallic compounds into secondary-tertiary alcohols, splitting out water between the tertiary hydroxyl and the adjacent tertiary hydrogen atom, and splitting up the double bond thus produced in the side chain with oxidizing agents to form the corresponding hydroxy-ketone. During the above series of reactions it is an advantage to protect the nuclear double bond by saturation with halogen which can be removed from the halogenated hydroxy-ketone obtained.  The hydroxyl group may also be protected by transformation into a group which on hydrolysis is reconverted into a hydroxyl group such as acylation. The preferred oxidizing agent used to split the double bond in the side chain is ozone. In an example, stigmasterol is converted by the method of Fernholtz into acetoxybisnorcholenic acid and saponified to 3-hydroxybisnorcholenic acid, which is then esterified with diazomethane.  The methyl ester is subjected to a Grignard reaction using bromobenzene and the Grignard addition compound decomposed with dilute sulphuric acid, acetylated, and then brominated.  The bromo-acetate is oxidized with ozone and debrominated with zinc dust to yield the acetate of the hydroxy-ketone C31H32O2 which may be purified by recrystallization after convertion into its semi-carbazide.
Patent GB-1533675-A (GB)
Title: Silicon carbide sintered bodies
IPC: C04B35/565
Filed: 1976-06-18
Abstract: To produce a sintered silicon carbide object having temperature-resistant properties, the procedure is as follows: A substantially homogeneous mixture of solid particles is prepared, whose particles are smaller than 1  mu m and which essentially consists of silicon carbide. The latter is composed of ss-silicon carbide and 0.05 to 5% by weight of  alpha -silicon carbide, relative to the ss-silicon carbide, the ss-silicon carbide particles having an average particle size of up to 0.45  mu m and the  alpha -silicon carbide particles having a particle size at least twice that of the ss-silicon carbide particles. In addition, the mixture must contain a boron addition and a quantity of a carbonaceous material. The mixture is moulded to give an unsintered object and sintered at a temperature in the region from 1950 to 2300 DEG C in an inert atmosphere. The sintered object has a density of at least 80% of the theoretical density for silicon carbide and contains  alpha -silicon carbide in a quantity of at least 70% by weight, relative to the total quantity of silicon carbide. The process can be used for the fabrication of shaped objects, for example of pipes or hollow gas turbine blades.
Patent GB-430780-A (GB)
Title: Improvements in and relating to electro-magnetically operated electric relays
IPC: H01H51/28
Filed: 1934-09-04
Abstract: 430,780. Electromagnetic switches. HASLEV, A. M., 9, Frederiksplads, Randers, Denmark. Sept. 4, 1934, No. 25433. Convention date, Sept. 12, 1933. [Class 38 (v)] In an electromagnetic relay in which a freely moving armature in an evacuated container is adapted to be attracted by an electromagnet placed outside the casing, the contacts which the armature engages form polepieces of the electromagnet. As shown in Fig. 1, the flat bar armature 6 is adapted to be attracted by an electromagnet 1 placed outside the insulating evacuated container 1<a>. Within the container pieces of magnetic material 4 are held in position by metal strips 5 also of magnetic material, the members 5 being fused at each end into the wall of the tube 1<a>. Each contact piece 4 is connected in the controlled circuit by a lead 4<a> so that these members act both as contacts engaged and bridged by the armature 6 and also as polepieces of the external-electromagnet. The armature when released falls upon glass rods 7 extending from the sides of the container 1<a>. In a modified form, Figs. 7 and 8, (not shown), the armature may rest upon an adjustable glass cradle which is positioned by springy anchoring members extending within apertures formed in the sides of the contacts 4. The armature may be lightened by being formed of two magnetic plates joined by thin rods or may be provided with longitudinal reinforcing side members and a weight to assist it in " dropping off " when the electromagnet is de-energized. Several armatures in separate tubes may be simultaneously controlled by a single electromagnet.
Patent GB-1492985-A (GB)
Title: Lens edgers
IPC: B24B9/14
Filed: 1975-05-22
Abstract: 1492985 Grinding edges of lenses RAPHAEL'S Ltd 22 May 1975 [7 June 1974] 25441/74 Heading B3D [Also in Division G3]  A multiwheel lens edging machine comprises a lens carriage 10 movable locate a lens against one of a plurality of grinding wheels, and a variable speed drive for rotating the lens. The carriage is mounted for pivotal movement on a shaft 35 and is moved by a servo motor to engage the edge of a lens 12 clamped between pads 20, 21 on the carriage with a selected one of grinding wheels 14, 15, 16. The carriage is also movable laterally to align the lens with any one of the grinding wheels. The pads 20, 21 are mounted on coaxial shafts 23, 24, shaft 24 being freely rotatable and axially movable by a high speed motor 27 and reduction gearing to provide torque for gripping the lens between the pad, stalling of the motor upon gripping of the lens operating an electronic cut-out. The shaft 23 has a wheel 30 engaged by a worm 31 driven from an electromagnetic clutch 42 and electronically controlled stepping motor 40 40 which is also engageable through a second electromagnetic clutch 44 with rack and spur gearing 60 for laterally moving the carriage. The variation of speed of the motor 40 for both the rotation of the lens and the lateral movement of the carriage is controlled from a store 50 having programmed logic circuits selected by the operator, such as a plug-in switch plate, punched tape or key, which control the various electric motors and clutches in a desired sequence and the final size of the lens. Further mechanism may be controlled from mechanism 52. In another embodiment, a constant speed electric motor is connected by an electromagnetic clutch to a gearbox having various ratios which can be selected to determine the speed of lens rotation. The motor and clutches may be arranged in a removable drive module to permit easy replacement during servicing or to provide different performance.