baber/WOPTO huggingface dataset:
Patent GB-1457802-A (GB)
IPC: C07J71/00
Filed: 1974-02-26
Abstract: 1457802 21-Fluoro-19-norpregnadiene compounds CIBA-GEIGY AG 26 Feb 1974 [28 Feb 1973 20 Dec 1973] 8619/74 Heading C2U Novel steroids of the formula (wherein X is H, C 1-7  alkyl, Cl or F and R 1  and R 2  are each H or an acyclic, carbocyclic-acyclic or carbocyclic hydrocarbon radical or both, together with the adjacent carbon atom, form a cycloaliphatic ring) are prepared (1) by introduction of a double bond into the corresponding 6,7-saturated steroids; (2) by converting the starting materials of (1) into 3-enol ethers, adding on the elements of a hypohalous acid and dehydrohalogenating the product; (3) by converting the aforementioned 3-enol ethers unsubstituted in the 6-position into 6-formyl derivatives and converting these to required 6- methyl #<SP>4,6</SP>-3-ones via 6-methyl-#<SP>4</SP>-3-ones; (4) by eliminating CO or CO 2  from corresponding 19-als or 19-oic acids; (5) by converting corresponding steroids containing in the 17(3-position the side chain -C(OM) = CHY in which Y is H, CHO or esterified oxalyl and M is an alkali metal or, if Y is CHO or esterified oxalyl, may also be H into the required products, possibly with temporary protection of the 3-oxo group; (6) by exchanging a 21-bromo or -organic sulphonyloxy substituent for F in corresponding steroids containing such a 21-substituent; or (7) by converting corresponding 16α,17α-diols or their 16-alkanoates into the required 16,17- acetals or -ketals by reaction with R 1 -CO-R 2  or a reactive derivative thereof. Products unsubstituted in the 6-position may be converted into 6-halo compounds by conversion to 6α,7α- epoxy-#<SP>4</SP>-3-ones and reaction of these with HCl or HF or a donor thereof. 21 - Fluoro - 16α,17α - isopropylidenedioxy- 3,20 - dioxo - 4,6 - pregnadienoic -19 - acid is prepared from 16α,17α - epoxy - 21 - fluoro- 3# - hydroxy - 5 - pregnen - 20 - one via 3#- acetoxy - 16# - bromo - 21 - fluoro - 17α - hydroxy- 5 - pregnen - 20 - one; the corresponding 17α- acetoxy compound; 3#,16α - diacetoxy - 21- fluoro - 17α - hydroxy - 5 - pregnen - 20 - one; 3# - acetoxy - 21 - fluoro - 16α,17α - isopropylidenedioxy - 5 - pregnen - 20 - one; the corresponding saturated 5α - bromo - 6# - ol; 3# - acetoxy - 5α- bromo - 6#,19 - epoxy - 21 - fluoro - 16α,17α- isopropylidenedioxy - 5α - pregnan - 20 - one; the corresponding 3#-ol; the corresponding #<SP>4</SP>- 3-one; 19 - acetoxy - 21 - fluoro - 16α,17α- isopropylidenedioxy - 4,6 - pregnadiene - 3,20- dione (a by-product here is 3-acetoxy-21-fluoro- 16α,17α - isopropylidenedioxy - 19 - nor- 1,3,5(10) - pregnatrien- 20 - one); and the corresponding 19-ol. 21-Fluoro - 16α,17α-isopropylidenedioxy - 6# - methyl - 19 - pregn - 4- ene-3,20-dione is prepared by reduction of the corresponding 6-methylene steroid. The novel steroids display a pronounced gestagenic and ovulation-inhibiting action and may be made up into pharmaceutical preparations with suitable carriers.
Patent GB-372893-A (GB)
Title: Improvements relating to downdraught carburettors
IPC: F02M7/02
Filed: 1931-03-20
Abstract: 372,893. Spray carburetters. SOC. ANON. SOLEX, 190, Avenue de Neuilly, Neuilly-sur-Seine, France. March 20, 1931, No. 8637. Convention date, April 1, 1930. [Class 7 (iii).] A downdraught carburetter c o m - prises a spraying device 9 having a truncated coned head 13, and a central bore 10 into which a fraction of the incoming air enters to emulsify the fuel which is delivered into the air stream through lateral slots 14, 15 between upper and lower flanges with sharp outer edges 16, 17 which produce eddy currents whereby the fuel is prevented from reaching the wall of the nozzle 9 or the choke tube 2. Fuel reaches the annular space between the body 9 and tube 10 through slots 12, and air through orifices 11. Fuel for slow-running flows through conduit 8 to a nozzle 21 located in a passage open to atmosphere at 22 and adjustable by a screw 23. The Specification as open to inspection under Sect. 91 (3) (a) refers to Specifications 253,095, [Class 7 (iii). Internal-combustion engines, Carburetting-apparatus &c. for], and 357,310 and describes also a small starting carburetter wherein air entering through an aperture 31 mixes with fuel supplied past a calibrated orifice 30 and needle valve 28, and the mixture enters the induction pipe through an aperture 24 when uncovered by withdrawing a piston 26 carrying the needle valve. This subject-matter does not appear in the Specifiaction as accepted.
Patent GB-557886-A (GB)
Title: Improvements in duplicating machines
IPC: B41L11/00
Filed: 1942-06-24
Abstract: 557,886. Copying documents. FORD, F. R. June 24, 1942, Nos. 8638/42, 9754/42 and 5159/43. [Class 100 (ii)] In a rotary duplicating machine in which means for automatically changing the master sheet is provided comprising an actuating lever which is movable by the operator into an operative position to engage and open the master sheet clamp as the cylinder rotates, a retaining lever for the actuating lever being later operated to release the actuating lever to allow its return to inoperative position, the actuating lever is secured to a pivot provided with one or more cranks carrying a bar engaging behind the new master sheet which is supported on a tray, so that as the actuating lever is moved to operative position, the leading edge of the new master sheet is moved into close proximity to the periphery of the cylinder to be received by the open clamp. In one form, Figs. 3 and 6, the clamp 21 is fixed to a lever 20 which is pivoted to a bracket 22 on the end of the cylinder 11 and is provided with a pair of abutments 23, 30 one of which, 23, is connected to the bracket 22 by a spring 25 which holds the clamp in the closed position of Fig. 3, or in the open position of Fig. 6. An actuating lever 26 fixed to a pivot shaft 27 is provided with a pair of abutments 28, 29 which, when the lever 26 is turned manually in a clockwise direction into the operative position, lie in the path of the abutments 23, 30. In this position the lever 26 is held by the engagement of a pin 33 on the lever with a notch 35 in a retaining lever 31 held in position by a spring 36. The new master sheet 40 is placed on a tray 39 with its lower edge resting on a lip 41 at the bottom of the tray. When the lever 26 is moved into the operative position, a rod 46 on arms 45 fixed to the shaft 27 moves the lower edge of the sheet into a position adjacent the cylinder, and spring arms on the shaft 27 press the sheet lightly against the tray. As the cylinder rotates, the abutment 23 engages the abutment 28 to open the clamp 21 and allow the old master sheet to pass on to a chute 48 after which the lower edge of the new master is engaged by the open clamp. The abutment 30 then strikes the abutment 29 to close the clamp after which a cam 37 on the cylinder shaft strikes a pin 74 on the retaining lever 31 to move it clear of the pin 33 to allow the levers 26 and 31 to be returned to the inoperative position by a spring 38 on the shaft 27. The tray 39 may have a pair of pivoted extension arms 9. A safety pin 1 on the machine frame is provided to engage the abutment 30 to close the clamp if the abutment 29 should fail toact. A modified arrangement as applied to a machine in which the impression roller is mounted above the printing cylinder is described.
Patent GB-492729-A (GB)
Title: Manufacture of ketones of the sterol series
IPC: C07J75/00
Filed: 1937-03-24
Abstract: Acids of the general formula R-COOH where R stands for an unsaturated cyclopentanopolyhydrophenanthrene nucleus are converted into ketones by subjecting the acids first to a decomposition by the method of Curtius followed by oxidation of the amines so produced to the required ketone.  The process comprises the following steps: (1) formation of the acid halide, particularly the acid chloride; (2) formation of the acid azide by the action of an alkali azide, particularly sodium azide; (3) formation of the isocyanate by the action of heat on the azide; (4) formation of the amine by hydrolysis with a strong mineral acid; (5) oxidation of the amine by sodium hypochlorite.  Instead of step (5) the amine may be converted into the corresponding alcohol with sodium nitrite and this oxidized to the ketone with chromic acid or potassium permanganate.  Double bonds in the ring system may be protected by the addition of halogen which is removed from the final product.  In an example, 3-acetoxyaetiocholenyl carboxylic acid-(17) is converted into the corresponding acid chloride by thionyl chloride.  This is transformed into the azide by heating with sodium azide in acetone.  As the azide is unstable in air it is at once converted into the corresponding isocyanate by heating in toluene, and then hydrolysed to the corresponding amine by means of 60 per cent sulphuric acid.  The hydroxy amine is oxidized with chromic acid after intermediate protection of the double bond by bromine to the oxoamine and the nuclear double link regenerated by treatment with zinc dust.  The oxoamine may also be formed by acting on an acetone solution of the hydroxy amine with a benzene solution of tertiary aluminium butylate for about 15 hours in a reflux apparatus, followed by treatment with sodium nitrite and acetic acid.
Patent GB-1415937-A (GB)
Title: Treatment of annular charges
IPC: F27D11/02
Filed: 1973-02-22
Abstract: 1415937 Vacuum furnaces UGINE INFRA 22 Feb 1973 [23 Feb 1972] 8689/73 Heading F4B A vacuum furnace for heating an annular charge 5 comprises a fluid-tight chamber 1, means for evacuating the chamber, means for introducing and circulating a gas in the chamber and two groups of cylindrically arranged electrical heating elements, one inside and one outside the charge, the supply to the two groups being independently controllable so that the temperature inside and outside the charge may be adjusted to be the same. The heating elements 4, 6 may be resistors or susceptors heated by induction from coils from which they are thermally insulated. When the heat treatment is complete the charge may be cooled by a gas which is circulated by a fan 9 through the heating zone inside shield 3 and over cooling coil 2. Cover 10 is removed during this operation.
Patent GB-140785-A (GB)
Title: Improvements in means for measuring wattless power or wattless consumption in alternating current circuits
IPC: G01R11/40
Filed: 1920-03-24
Abstract: 140,785. Landis & Gyr Akt.-Ges. March 25, 1919, [Convention date]. Addition to 3856/15. Power meters; phase-differences and power-factors, measuring; special quantities, registering.-In a single or polyphase induction-motor meter for measuring wattless power or energy, identity of phase between the shunt field and the supply pressure is obtained by inserting an ohmic resistance w in series with one coil 1 on the pressure magnet, and an inductance s in series with a second coil 2 wound in the opposite sense. As shown in the vector diagram, Fig. 2, the field N<w> due to the current in the coil 1 lags by a small angle a behind the pressure E. The field N<s1> due to the coil 2 lags by a larger angle #; owing, however, to the reverse winding of the coil 2, this field is displaced by 180 degrees, producing a leading field N
. The fields N<w>, N
 are so proportioned that their resultant N is in phase with the pressure E. The resistance w may be combined directly with the coil 1. The inductance s may be combined with the coil 2, or its field, or part of it, may pass through the core of the coils 1, 2. Two or three separate elements may be employed for three-wire or four-wire, three-phase circuits respectively. The invention is also applicable to phase meters and power-factor meters. The Specification as open to inspection under Sect. 91 (3) (a) states also that the coils 1, 2 may be on separate cores. This subject-matter does not appear in the Specification as accepted.
Patent GB-594986-A (GB)
Title: Improvements in or relating to electrical circuit breakers, having buffer or dampingdevices
IPC: H01H3/60
Filed: 1945-04-09
Abstract: 594,986. Automatic circuit - breakers. SOUTH WALES SWITCHGEAR, Ltd., and FARRER, S. April 9, 1945, No. 8704. [Class 38(v)] A buffer to absorb the mechanical shock on opening a circuitbreaker comprises two guide bars 3, 4 resiliently bolted to a lug 1 on the housing and resiliently supported half way along their length by studs 13, 14 guided in apertured fixed lugs 15, 16. The inwardlyinclined lower ends frictionally grip, and are displaced against springs 8, 9 by a reciprocating member 19 coupled to the breaker mechanism. The member 19 may be tipped with material 20 having a high coefficient of friction and the inclined part of the guide bar may be lined with it. The inward inclination of the guide bars is made substantially equal to the limiting angle of friction for the materials employed, so that little or no damping is imposed on the closing movement. In alternative buffer arrangements, Figs. 3, 4, 5 (not shown) the member 19 is in the form of a rod having a loose sleeve of frictional material, and only one bar need be inclined, or one or both of the bars may not extend for the full travel of the member 19. In Fig. 6 (not shown) the member 19 may be replaced by a pivoted lever, tangentially engaging a block of frictional material in the latter part of its stroke. Specification 594,979 is referred to.
Patent GB-1293601-A (GB)
Title: Lamp
Inventor: DYER PETER ANTHONY
IPC: F21V21/14
Filed: 1969-02-18
Abstract: 1293601 Inspection lamp PEMBERTON & STURGESS (GREAT BRITAIN) Ltd 30 Jan 1970 [18 Feb 1969] 8742/69 Heading F4R A support system for an inspection lamp comprises a friction hinge joint 10 having two sets of interleaved friction discs 11, 14, mounted under pressure on a pair of journals 12, 15, respectively with spaced apart mutually perpendicular longitudinal axes, the joint being fixed to a support bracket 3 on one side and carrying on its other side a lamp-supporting telescopic tubular arm 5, 6, whose extension is controlled by a constant torque spring motor 20. The friction discs are clamped together by springs 13 and protected by a flexible rubber bellows 4<SP>1</SP>. The spring motor is fixed inside the outer tube of the telescopic arm and comprises a steel spring wound on and anchored at its one end to a drum, its other end passing over another drum and connected via a nylon cable to the inner tube of the telescopic arm. The lamp is fixed to the free end of the inner tube by a knuckle joint about which it is rotatable, locking being provided by a clamping handle. The friction discs are made of molybdenum impregnated nylon.
Patent GB-452519-A (GB)
Title: Improvements in advertising and display apparatus
IPC: G09F11/02
Filed: 1935-03-21
Abstract: 452,519. Moving signs. DARBY-WADE, Ltd., Australia House, Strand, and YOUNG, C. R., 67, Cobden Road, South Norwood, both in London. March 21, 1935, No. 8780. [Class 3 (i)] In falling-leaf display apparatus the rods 7 carrying the leaves have a reduced collar at one end into which the rim of a disc 5 enters. The disc 5 is concentric with the end rod-supporting plate 2 and is rotatable about the main shaft 3. It is provided with a notch 8 in its circumference, which, when brought opposite a rod 7, allows the rod to be withdrawn through the plate 2 and manipulated. A spring member 9 fixed to the disc 5 has a slot 10 which takes over the end of any of the rods 7 to prevent accidental rotation of the disc 5. In a modification, the disc 5 is replaced by an annulus surrounding the plate 2.
Patent GB-292709-A (GB)
Title: Improvements in or connected with apparatus for keeping food hot or heating same
IPC: A47J39/00
Filed: 1927-03-31
Abstract: 292,709. Lockyer, E. G. F. March 31, 1927. Food-warming stoves; ovens; oven shelves.- Relates to a partitioned carrier or container for food and other articles, fitted with means for heating the food or for keeping it hot. The container comprises a food-warming compartment 6, Figs. 2, 3, in which the food-containing vessels 13 are supported in openings in a removable tray 10 above electric lamps 15 or other heating means such as a slow burning fuel. At one or both ends of the food compartment are storage chambers 18 and in front thereof a chamber 19 suitably fitted with wire or spring devices 20, 21 for holding cups, bottles, plates, &c. The cover 2 hinged to the rear wall at 3 has sloped sides and is deeper at the front than the back. The front wall of the container may be hinged to facilitate access to the contents of the chamber 19. When a slowburning fuel is employed as the heating means the walls of the container 6 may be made double affording a flue space through which the products of combustion can pass, emerging through an opening at the top of the container.
Patent GB-632574-A (GB)
Title: Improvements in or relating to apparatus for dispensing carbonated liquids
IPC: B67D1/14
Filed: 1946-03-21
Abstract: 632,574. Discharging carbonated liquids. COCA-COLA CO. March 21,1946, No. 8826. Convention date, March 31, 1945. [Class 14(i)] [Also in Group XVIII] Apparatus' for dispensing carbonated water comprises a capillary nozzle associated with control means regulating the flow of carbonated water from a source thereof, said nozzle having a helical passage therein of such dimensions as to use up in friction substantially the whole of the pressure energy of fluid passing therethrough while maintaining streamline flow in the fluid. Carbonated water under pressure in a container 10 is discharged through a nozzle having a helical passage formed by a plurality of V-shaped helical grooves 16 on a plug 15 fitting tightly within a sleeve 14. The discharge is controlled by a valve 17 which is opened by depressing, against the action of the spring 19, a nozzle-piece 20 screwthreaded on the valve rod 18. Specifications 621,105 and 635,565, [both in Group XVIII], are referred to.
Patent GB-1037021-A (GB)
Title: Oxyalkylene substituted higher fatty acid derivatives and method of preparing them
IPC: C10M173/02
Filed: 1963-03-06
Abstract: Lubricants for metal-forming operations are esters of C10- 22 fatty acids substituted in the acyl chain with oxyalkylene radicals having at least 2 oxyalkylene groups, each oxyalkylene radical being adjacent to a hydroxy group or to another such oxyalkylene radical, each alkylene containing 2-4 carbon atoms (see Division C2). In Example I, aqueous solutions of the reaction product of epoxidized soybean oil with ethoxylated nonyl phenol are stated to be of value as a lubricant at a metal-metal interface.ALSO:The invention comprises esters of C10- 22 fatty acids, the acyl chain being substituted with oxyalkylene radicals having at least two oxyalkylene groups, each oxyalkylene radical being adjacent to a hydroxy group or to another such oxyalkylene radical, each alkylene containing 2-4 carbon atoms; and their production by reacting an epoxidized ester with an oxyalkylene ether or ester in the presence of a strong Lewis acid or a tertiary amine (or with a polyoxyalkylene glycol). Preferred starting materials are epoxidized triglycerides; other esters, including esters of polyhydric alcohols, are specified.ALSO:The invention comprises esters of C10- 22 fatty acids, the acyl chain being substituted with oxyalkylene radicals having at least 2, e.g. 2-200, oxyalkylene groups, each oxyalkylene radical being adjacent to a hydroxy group or to another such oxyalkylene radical, each alkylene containing 2-4 carbon atoms; and their production by reacting an epoxidized fatty ester with an oxyalkylene ether or ester in the presence of a strong Lewis acid or a tertiary amine (or with a polyoxyalkylene glycol).  Specified reactants include alkylphenol - polyoxyalkylene glycol adducts.ALSO:Emulsifying systems comprise an ester of C10-22 fatty acid substituted in the acyl chain with oxyalkylene radicals having at least 2 oxyalkylene groups, each oxyalkylene radical being adjacent to a hydroxy group or to another such oxyalkylene radical, each alkylene containing 2-4 carbon atoms (see Division C2); together with an anionic emulsifier, e.g. a salt of an alkyl, aryl or alkaryl sulphonic acid, a mono- or diester of orthophosphoric acid, or a mono- or diester of sulphuric acid, e.g. salts of Ca, Ba, Mg, Sr, Be, Zn, Al, Cr and amines.  The material emulsified may be an organic oil-soluble pesticide. Examples refer to the emulsification of mineral oil and a mixture of castor oil and unsaturated fatty acids.
Patent GB-327555-A (GB)
Title: Tiltable table for invalid beds and other uses
IPC: A47B23/02
Filed: 1929-03-21
Abstract: 327,555. Everitt's Patents Co., Ltd., and Everitt, J. March 21, 1929. Invalids' tables and desks.-An invalid's or like bed table or desk comprises an inclinable board a hinged at its front to the horizontal part c<2> of an arched rod c, and supported by two struts h engaging with the horizontal part d<2> of a rear arched rod d. The lower ends of the rod d are hinged at d<4> and the lower ends of the front arch are attached to base plates c<3> adapted to rest on the side bars of a bedstead frame. The front arch plates c<3> are connected to the rear arch plates d<3> by bars e. A centrally-situated adjustable connection f, f<2> at their upper ends connects the arches c, d. Its length, and therefore the inclination of the board a, is adjusted by means of a spring-pin g on the part f entering one of the holes in the part f<2>.
Patent GB-654693-A (GB)
Title: Improvements in snap-action electric switches
IPC: H01H5/18
Filed: 1948-04-30
Abstract: 654,693. Snap-action switches. YOUNG, S. G. April 30, 1948, No. 9099. [Class 38(v) A dead - centre snap-action switch comprises a movable contact-member, in the form of a conductive snapper 7 which consists of a closed framework having non-extensible side-members 8 and one or more internal tongues 9. and an operating member engaging a part of the snapper,the snapper being secured to a teminal 6<SP>1</SP> and the tongue or tongues having preformed compressible portions. In Fig: 4, the dolly 3 has recesses 15, 16 engaging the opposed ends of the tongues 9 and is supported thereby. In a modification, Fig. 5, the operating member is a plunger 25 which engages tongues 9. the snapper being mounted on terminals at the centre 26 of the sidemembers 8. In further modifications, (Figs. 10-13, not shown), the snapper has only one tongue, and may be operated by a double-ended plunger. In further modifications, (Figs. 8, 9, not shown), the operating member has resilient strips sprung into slots therein, the snapper engaging said strips and being either non- extensible throughout or only slightly resilient. In Fig. 14, the ends of the tongues 9 engage depressions 52 in spring strips 53, the snapper being moved overcentre by rods 62 on a pivoted operating member 63. The tongues of the snapper may be fixed to the terminals, the operating member then engaging the side-members 8. The tongues may be bowed instead of corrugated and the dolly may be mounted on a fixed pin or supported in a shaped seating in the body.