baber/WOPTO huggingface dataset:
Patent GB-1055190-A (GB)
Title: Improvements relating to compounds of fluorine
IPC: C01B21/084
Filed: 1963-07-09
Abstract: 1,055,190. F 3 NO.BF;). ALLIED CHEMICAL CORPORATION. July 9, 1963 [July 23, 1962], No. 27219/63. Heading C1A. The invention comprises an adduct of trifluoroamine oxide and boron trifluoride of the formula F 3 NO.BF 3 . The adduct is made by introducing F 3 NO and BF 3  into a reaction zone and maintaining them at a temperature below - 80 C. until the solid adduot forms. Preferably both reactants are in the liquid state, for example at a temperature of -135 to -120 C., the reaction time is at least half an hour, and BF 3  is used in excess. After the reaction, the pressure may be reduced to remove impurities and by-products, for example NOF, NO 2 F, SiF 4 , N 2 O and NF 3 . In order to purify trifluoroamine oxide contaminated with nitrous oxide, the BF 3  adduct is formed and purified as above and then dissociated by raising the temperature, BF 3  being removed by treating the gaseous mixture with an aqueous alkaline solution. The trifluoroamine may be made as described in Specifications 1,038,839 and 1,038,840.
Patent GB-749864-A (GB)
Title: Improvements in or relating to the balancing and charging of internal combustion engines
Inventor: SMITH JAMES JOHN STEWART
IPC: F02B75/16
Filed: 1953-10-05
Abstract: 749,864. Two-stroke and four-stroke engines. ARMSTRONG WHITWORTH & CO. (ENGINEERS), Ltd., Sir W, G. Oct. 28, 1954 [Oct. 5, 1953], No. 27287/53. Class 7(2) A pump piston 12 diametrically opposed to and in counterphase with a working piston 1 to balance it compresses charge with its outer end. As applied to a two-stroke engine with terminal inlet ports 6 and a poppet-type exhaust valve in the cylinder head the piston 12 may draw air directly from the atmosphere via a filter and a non- return valve 16, for delivery via a non- return valve 17 to an air chest 4, but as shown initial crankcase compression is used, air entering the crankcase via a filter 18 and non-return valve 20. Eccentrics 10 on the main crank cheeks drive the piston 12, The invention is applicable to multicylinder engines.
Patent GB-1443108-A (GB)
Title: Aromatic isocyanates
IPC: C14C11/00
Filed: 1974-06-20
Abstract: 1443108 Aromatic isocyanates BAYER AG 20 June 1974 [22 June 1973] 27369/74 Heading C2C [Also in Division D1] The invention comprises compounds having the general formula wherein R is a perfluorinated aliphatic or cycloaliphatic radical; X is -O-, R<SP>1</SP> is hydrogen, halogen, alkyl, alkenyl, carbalkoxy, or nitro; R<SP>2</SP> is an alkyl radical; a and b are each 1 or 2, and c is an integer from 1 to 4. They may be prepared by phosgenation of the corresponding primary aromatic amines. The compounds of the invention may be used for dressing leather.
Patent GB-387967-A (GB)
Title: Improvements in or relating to the manufacture of carriers provided with a light-sensitive substance
IPC: G03C1/93
Filed: 1932-10-03
Abstract: 387,967. Photo-sensitive material. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Oct. 3, 1932, No. 27415. Convention date, Oct. 5, 1931. Addition to 361,750. [Class 98 (ii).] The invention of the parent Specification, which consists in depositing a light-sensitive substance on a carrier from the vapour phase, is modified, in order that the carrier may be subjected to wet treatment without detaching portions of the sensitive substance, by applying to the carrier an agglutinant layer as of gelatin, fish-glue, agar-agar, water-glass, collodion, or gum arabic, on to the surface of which the light-sensitive substance is deposited. Whereas the material produced according to the parent Specification is intended to be developed physically by means of a metal vapour, as by treating it with the vapour of mercury or cadmium in a closed vessel, the material produced according to the present Specification may be developed by a wet physical method, as by treatment first in a bath of silver nitrate and then in a bath containing metol and citric or acetic acid, or by a wet chemical method, as by treatment with a bath of alkaline pyrogallol containing potassium bromide.
Patent GB-1399892-A (GB)
Title: Non-corrosive fluxes
IPC: B23K35/36
Filed: 1972-06-12
Abstract: 1399892 Soldering fluxes CREUSOT-LOIRE 12 June 1972 27433/72 Heading C7M A non corrosive solder flux for steels, stainless steels and alloys comprises an emulsion or mixture of ammonium phosphate and ammonium fluoride, in water or alcohol or other organic liquid. The flux preferably contains in wt per cent 10-90 ammonium phosphate, 0.5-15 ammonium fluoride and up to 90 resin. At least one of the phosphates of Sn, Pb, Zn, In, Cd, Ag, Ni, Co, Cu, Sb and Bi e.g. 10-40% may also be included. The phosphates and fluoride may be added as such or prepared in situ by reaction of ammonia, HF, orthophosphoric acid and the appropriate metal or metal salt.
Patent GB-209491-A (GB)
Title: An improved waste preventer and strainer for beer engine nozzles
IPC: B01D35/04
Filed: 1922-10-10
Abstract: 209,491. Lawrence, A. Oct. 10, 1922. Strainers, arrangement of. - The nozzle of a beer engine is fitted with a drippreventing valve 3 and a strainer 6 mounted in a casing 1 which fits into a flexible tube 8 carried bv the nozzle. The valve spindle 4, is fitted with elastic buffers 5 or with springs to prevent shock. The strainer rests on a rubber ring 7 which fits in the lower end of the casing 1.
Patent GB-771699-A (GB)
Title: Improvements in machines for cropping tubes
IPC: B23D21/14
Filed: 1954-09-23
Abstract: 771,699. Shearing. JACKSON, Ltd., A. N., and JACKSON, A. N. Sept. 21, 1955 [Sept. 23, 1954], No. 27485/54. Class 83 (4). In a machine for shearing a tube C having fixed and movable external blades A<SP>1</SP>, D, respectively, with apertures to receive the tube C and fixed, and movable internal disc-like blades A<SP>2</SP>, D<SP>1</SP>, respectively, which pass inside the tube C, the external moving blade D is actuated through an arm E<SP>2</SP> by an eccentric and transmits the movement to the internal moving blade D<SP>1</SP> through the tube C. The tube C is supported on rollers and on a support b. The internal fixed blade A<SP>2</SP> is secured to a shaft A<SP>3</SP> and the internal moving blade D<SP>1</SP> is loosely mounted on a spindle A<SP>4</SP> secured to the shaft A<SP>3</SP>, a spring- loaded collar d<SP>3</SP> serving to locate the internal moving blade D<SP>1</SP>. The external moving blade D may be connected by arms E<SP>3</SP>, E<SP>2</SP>, Fig. 4, to two actuating eccentrics E<SP>1</SP>, E. One eccentric is rotated through a complete revolution to shear opposite sides of the tube C and then the other eccentric is likewise rotated to shear the uncut portions of the tube. In a modification the internal moving blade D<SP>1</SP> is secured to a spindle which is supported by hand. Specification 677,107 is referred to.
Patent GB-491689-A (GB)
Title: Improvements in or relating to milling machines for grain
IPC: B02C4/42
Filed: 1937-03-06
Abstract: 491,689. Roller mills. SIMON, Ltd., H., and FREROTTE, A. March 6, 1937, No. 27489. Divided out of 482,481 under which a Specification was laid open to inspection under Sect. 91 of the Acts. Jan. 26, 1938. [Class 59] In a mill having two pairs of rollers each pair is driven at one end of the mill by a motor through a train of gear wheels. The roller 3 has a gear 10 attached thereto which is driven by a motor pinion 8. This pinion also drives roller 2 through compound pinion 12, 9 and. gear wheel 14. The roller 2 is adjustable toward the roller 3 about a pivot 18. The casing 7 is in two parts, the lower part 5 carrying the driving motor 9a.
Patent GB-1519417-A (GB)
Title: Manufacture of non-enveloped cigaretts filters
IPC: A24D3/02
Filed: 1976-06-29
Abstract: 1519417 Cigarette filter BAUMGARTNER PAPIERS SA 29 June 1976 [8 July 1975] 27493/76 Heading A2C A non-enveloped cigarette filter rod is produced by heating a tow of fibrous material to form a rod and then superficially heating the rod by sliding contact with a heated smooth surface to form a smooth skin by fusion. As shown the smooth surface is provided by a smooth walled tube 18 heated electrically or by steam through which the rod passes. The tube is followed by an identical tube 19 supplied with cooling liquid. The initial heating to form the rod is preferably performed by a high frequency device 3, 6 which is followed by a cooling chamber 9. A heat activatable binder is supplied to the tow before each heating stage.
Patent GB-646063-A (GB)
Title: Assembly device for rectifying discs
IPC: H01L23/04
Filed: 1947-10-14
Abstract: 646,063. Dry contact rectifiers. LIGNES TELEGRAPHIQUES ET TELE. PHONIQUES. Oct. 14, 1947, No. 27511. Convention date, March 6. [Class 37] One or more rectifying discs 1, and auxiliary electrodes 3, 4 supplying current thereto, are held together by a metallic spring 2, and contained within a housing which includes drying material such as silica gel. An insulating plate 5 prevents short-circuiting. U.S.A. Specification 1,949,383 is referred to.
Patent GB-965971-A (GB)
Title: A combined hub cover and embellisher for a vehicle wheel
Inventor: JONES NORMAN
IPC: B60B7/12
Filed: 1962-07-18
Abstract: 965,971. Hub covers and embellishers for wheels. JOSEPH SANKEY & SONS Ltd. June 14, 1963 [July 18, 1962], No. 27522/62. Heading B7C. A hub cover and embellisher for a vehicle wheel is made from a single sheetmetal blank and comprises a central circular hub covering portion 2 and an integral outer embellisher portion 3, the embellisher portion having circumferentially spaced slots or apertures 4 (Fig.2), made by piercing and displacing metal, the displaced metal constituting tongues (Fig. 5, not shown) which are curled over to form headings 8, which beadings clip over cooperating parts 9 of the wheel hub 10 (Fig. 4, not shown) to hold the cover and embellisher on the wheel. A wire reinforcing ring 11 may extend through the headings 8, as shown. The wheel hub 10 may have lips 9 circumferentially spaced (Fig. 4, not shown) to engage headings 8. One aperture 4 may be shaped to accommodate a valve stem.
Patent GB-187448-A (GB)
Title: Improvements in mechanical toys
IPC: A63H15/00
Filed: 1921-10-18
Abstract: 187,448. Keeling, J., Lenderyou, A. V., and Hallett, C. Oct. 18, 1921. Mechanical and like toys. -A hand-actuated. toy comprises a base 2 on which are mounted models of birds or animals 3, the heads of which are pivoted and are connected by cords or articulated wires 7 passing through the base, to a common weight 8. On moving the base to and fro to swing the weight the heads move up and down.
Patent GB-1038717-A (GB)
Title: High-voltage electric circuit breakers
IPC: H01H33/75
Filed: 1963-07-12
Abstract: 1,038,717. Fluid blast switches. E. MARX. July 12, 1963 [July 16, 1962; May 4, 1963], No. 27730/63. Heading H2B. A high voltage D.C., oil immersed circuit breaker comprises a pair of spring urged contacts 3, 4 and an insulating plate 11 movable between the contacts to separate them and to extend the arc thus formed between them into an oil filled chamber 7. The plate 11 is moved in guides 12 by the detonation of an explosive charge 19 which drives upwards a piston 18 on a rod 17 which loosely engages the plate 11 at its lower end. After an initial rapid movement, the piston 18 is slowed first by the oil trapped above it and then by a spring 22. The plate 11 is slowed by its tip 20 entering a narrow channel 25 to trap a quantity of oil which can only escape through a narrow vent 26. In a modification (Fig. 6, not shown) the plate 11 is stopped by spring urged resilient plates 31. Over the last part of the movement of the rod 17 a piston 16 thereon enters a channel 14 driving oil before it across the contacts to cool the arc. In the modification (Fig. 6, not shown) further blast action is brought about by gas evolving inserts 30 in the arc chamber 7. In a further modification (Fig. 12, not shown) pressure produced by the initial arc drives a differential piston 47 upwards compressing oil in a chamber 50 which thus moves downwards across the arc. In further modifications (Figs. 18-19, not shown) blast is produced by explosive capsules in the oil chamber. The tip 20 of plate 11 may be grooved to control the position of the arc (Fig. 8, not shown) and be provided with metallic or gas evolving inserts (Figs. 10, 9, not shown). Various forms of the arc chamber 7 are shown and described. In particular two parallel plates 11 may be provided moving in separate chambers (Fig. 11, not shown); magnetic blow-out coils (or permanent magnets) may be embedded in the chamber walls (Fig. 13, not shown); or the chamber 7 can be divided into several restricted chambers (Fig. 7, not shown). Contacts opened other than by the plate 11 may be employed and the use of main and auxiliary contacts is also suggested. The plate 11 can alternatively be moved by making piston 18 the movable core of an electromagnet. An overvoltage or lighting arrester may be connected in parallel with the breaker. A series isolator may be provided.
Patent GB-207333-A (GB)
Title: Improvements in or relating to the gumming of sheets of paper, or the like
IPC: B65H37/02
Filed: 1922-10-13
Abstract: 207,333. Brooks, H. C., and Warbey, H. F. Oct. 13, 1922. Sheet separators and carriers; pile supports; sheet-guides.-In a gumming-machine of the kind in which part of the bottom blank of a pile rests on a gumming fountain and the gummed blanks are fed successively to conveying and drying devices, the blanks are arranged to be fed in quick succession so that they reach the conveyer in fanned condition, the blanks being separated by oscillating suction devices and directed to the conveyers by rotary fingers engaging the side edges of the blanks. As shown, the blanks 20 are gummed by means of a fountain 27, being supported in a hopper formed with front gauges 36 and adjustable sides. The bottom of the hopper is cut away, and the blanks are supported by adjustable collars 29 carried by rods supported by chains 31 driven in such manner that the collars 29 engage the portions of the blanks which are not gummed. The blanks are fed by suckers 1, two of which are similarly mounted and are given oscillating motions to and from the pile, and rotary finger members 18 formed of discs with cut-away parts into which the blanks are directed by the suckers. The members 18 direct three blanks for each revolution into contact with a roller 24 and conveyer-belt 22, which directs the blanks in fanned condition to a horizontal conveyer on which the blanks are dried. The suckers 1 are arranged to have an initial movement towards the fountain 27 after engaging the blank, and are then moved downwards and towards the openings in the discs 18. The suckers 1 are mounted in bell-crank levers 2 carried by arms 4 which are oscillated about pivots 5 by means of cams 7. The levers 2 are oscillated in the arms 4 by means of connecting rods 9 reciprocated by rollers 11 and cams 12. Specification 155,928 is referred to.
Patent GB-298154-A (GB)
Title: Paper feed driving gear for a stenographic machine
IPC: B41J15/16
Filed: 1928-09-28
Abstract: 298,154. Soc. Anon. Stenotype Grandjean. Oct. 4, 1927, [Convention date]. Line-spacing mechanism. - The platen roller 81, Fig. 2, of a stenographic machine is associated with the following mechanism for line-spacing a web which is delivered from a spool 91 and passes to a winding-spool 103. The platen shaft 80 is geared to a ratchet-wheel 86 co-operating with a pawl 14 pivoted on a block 13, which is secured to a rocking arm 6 supporting the universal bar. The pawl is formed with a projection 14a engaging the ratchet-wheel, a projection 14‹ engaging a spring, a projection 14d normally engaging a stop 15 on the block, and a projection 14b for preventing over-running. If the ratchetwheel tends to over-run the projection 14a the pawl is swung and the projection 14<b> arrests the ratchetwheel. The stop consists of compressible material and is mounted in an opening in the block, adjustment being effected by a screw 16 which is secured by a stud 17. The shaft 80 is mounted in the head 79 of a frame member 78, and is retained by a spring-urged latch 82. The platen roller is engaged by feed-rollers 27. Web-feeding arrangements.-The delivery spool 91 consists of end discs connected by bent leafsprings adapted to engage the core of the webroll. The spool is mounted in a yoke 87 which is pivoted on a shaft 88 and is retained in normal or folded position by means of springs 89 having projections for engaging notches in the yoke. The yoke is provided with a pivoted frame 92 for retaining the spool in the yoke. The winding- spool 103 is mounted in a support 98 which is pivoted on pins 99 and is retained in normal or folded position by means of springs 101. The winding-spool is associated with ratchet-mechanism operated by a sector on a lever 106 which is connected to a member operated by a pad on the universal bar. Specifications 192,050 and 192,051 are referred to.
Patent GB-410007-A (GB)
Title: Improvements in and relating to electrically driven rollers
IPC: H02K7/10
Filed: 1933-10-10
Abstract: 410,007. Hollow rollers. SIEMENS-SCHUCKERTWERKE AKT. GES., Siemensstadt, Berlin. Oct. 10, 1933, Nos. 27916 and 27917. Convention dates, Oct. 10, 1932 and Oct. 13, 1932. [Class 34 (i).] In an electrically driven roller of the kind in which the external roller body is driven by an electric motor housed inside it through planet gearing, the motor shaft, or an extension thereof, is arranged to extend into the transmission gearing, to carry the driving pinion thereof, and to support planet wheels of the gearing and the stationary internally toothed wheel with which they mesh. The rotor 11 is carried on a shaft 14 which is mounted in bearing brackets 16, 17 carried by the housing 15 of the stator. One end of the shaft 14 is forced into and keyed to the boss 19 of the driving pinion 18 which is formed integral with a gear shaft 20 supported by bearings 27, 28 on the ends of a trunnion 29 of the roller. Pairs of planet wheels 21, 23 are carried in a frame 25 which is supported by a roller bearing 26 on the shaft 20. The internally toothed wheel 22 is secured to the roller body 12, and the similar stationary wheel 24 is formed integral with the trunnion 29 which carries a bearing 30 for the end 31 of the roller body. The cooling of the motor is effected by a fan 36 on the shaft 14 which draws air through openings in the end 33 and drives it over the stator casing provided with cooling fins. In a modification, the motor shaft is formed conical at its driving end and is provided with a screw-threaded axial bore into which is screwed one end of a spindle extension located within a hollow gear shaft upon which are cut the teeth of the driving pinion. In another modification, the housing of the motor and gearing may be a single casting with an integral partition separating the motor and gearing.
Patent GB-152535-A (GB)
Title: Improvements in apparatus for electrically controlling air-brakes
IPC: B60T7/18
Filed: 1919-11-11
Abstract: 152,535. Jachson, W. J. Mellersh-, (Waterhouse, E. P., and Prince, B. A.). Nov. 11, 1919. Electrical systems, automatic; track apparatus for stopping trains.-In systems of the type described in Specification 128,443, [Class 103 (i), Brakes &c.], and 130,151, the train-carrier circuits and apparatus are modified by the provision of special switches, including a switch actuated by a centrifugal governor driven at a speed corresponding with the train speed, so that if the brakes are applied automatically they cannot be released unless the train is stopped or travelling only below a predetermined low speed. When the brakes have been automatically applied through the electro-magnetically-operated valve 23 because of danger conditions on the track, the driver may release the brakes by means of a handle 45, but is prevented from doing this until the train is stopped or travelling below a predetermined speed by a lock comprising the plunger 47 of a solenoid 48. Registering holes are provided in the handle 45 and casing 46, through which the plunger 47 passes to lock the handle until the solenoid 48 is de-energized, which happens when its circuit is broken at the centrifugal switch 51 if the train is stopped or its speed is sufficiently low. The conducting portion of the centrifugal switch is adjustable to correspond with different predetermined slow speeds. Another solenoid switch 61 controlled by the track and train circuits is provided with its contacts arranged in a shunt circuit so that if the speed of the train exceeds the predetermined limit the automatic brake magnet 19 will still remain energized unless the track conditions are at ' danger.'
Patent GB-1406770-A (GB)
Title: Temperature measuring devices
IPC: G01R27/02
Filed: 1973-06-12
Abstract: 1406770 Measuring temperature electrically; voltage measuring KERNFORSCHUNGSANLAGE JULICH GmbH 12 June 1973 [15 June 1972] 27996/73 Addition to 1373849 Headings G1N and G1U A temperature measuring device includes temperature sensing means R 1  having a first electrical resistance, a reference circuit having an adjustable second electrical resistance R 2 ; an amplifier arrangement comprising two identical amplifying circuits V, F, H arranged in parallel; a first pair of conductors K 1 ', K 1 " connecting the temperature sensing means to the amplifier arrangement; a second pair of conductors K 2 ', K 2 " connecting the reference circuit to the amplifier arrangement; first and second switches S 1 ', S 1 " each connected to a respective amplifying circuit, alternately connecting the first and second pairs of conductors to the amplifier arrangement so that said amplifier arrangement receives noise voltages alternately from the temperature sensing means and the reference circuit; a multiplier M multipling the signals from the parallel connected amplifying circuits to produce two output signals respectively dependent on the noise voltages of the temperature sensing means and reference circuit; capacitors C a , C b  each integrating a selected one of the two output signals; a differential amplifier D comparing the capacitor outputs. Noise voltages due to the conductors leading to the amplifiers are thereby eliminated.
Patent GB-1202001-A (GB)
Title: 6alpha,9alpha-DIFLUOROPREDNISOLONE 17,21-DIESTERS
IPC: C07J5/00
Filed: 1968-06-13
Abstract: 1,202,001. 17,21-Diesters of 6α,9α-difluoroprednisolone. WARNER-LAMBERT PHARMACEUTICAL CO. 13 June, 1968 [16 June, 1967(5)], No. 28176/68. Heading C2U. [Also in Division A5] Novel compounds of formula (wherein R and R<SP>1</SP> are C 1-3  alkyl groups) are prepared (a) from the corresponding 17- monoesters by 21-esterification, and (b) from compounds of formula  by treatment with HF (to give a 9α-fluoro-11#- hydroxy grouping) and 1,2-dehydrogenation (in either order). 6α,9α - Difluoroprednisolone 17 - (C 2-4 )- alkanoates are prepared by reacting 6α,9α- difluoroprednisolone with an orthoester of formula RC(OX) 3  (where X is a C 1-3  alkyl group), and hydrolysing the resulting 17α,21- alkyl orthoester. Compounds of Formula III are prepared from compounds of formula by fluorination and acidification to obtain a 6α fluoropregna - 4,9(11) - diene - 17α,21 -diol - 3,20-dione 17,21-diester which is treated with a source of HOBr to give a 6α-fluoro-9α- bromo-pregn - 4 - ene - 11#,17α,21 - triol - 3,20 - dione 17,21-diester, which is epoxidized (e.g. using potassium acetate) to give a compound of Formula III. Compounds of Formula VII are prepared from pregna-4,9(11)-diene-17α,21- diol-3,20-dione (a) by reaction with an orthoester of formula RC(OX) 3 , hydrolysis of the resulting 17α,21-alkyl orthoester and esterification of the thus-obtained pregna-4,9(11)-diene- 17α,21-diol-3,20-dione 17-monoester, or (b) by direct esterification (for a product wherein R = R<SP>1</SP>).