baber/WOPTO huggingface dataset:
Patent GB-714800-A (GB)
Title: Improvements in or relating to explosively-operated ignition devices for jet engines
Inventor: TAVERNIER PAUL VICTOR
IPC: F42C19/08
Filed: 1952-05-22
Abstract: 714,800. Explosively-operated devices for igniting fuels. FRANCAIS ETAT. May 22, 1952, No. 13046/52. Class 9(1) Relates to a slow-burning powder operated ignition device for jet engines for use up to 200‹C, the igniting charge consisting of a slow-burning powder as disclosed in Specification 681,095. The device comprises a body 1 with a nozzle at one end and a screw-plug closure 2 at the other, a cylindrical charge 3 of slow-burning powder with a high ignition temperature being mounted in the body 1 between supporting grids 4, 5. A metal disc 6 separates the grid 5 from the nozzle and a spring 7 bearing against the plug 2 holds a black-powder capsule 8 against the grid 4. A washer 9 holds in position an electric igniter 10 the leads 11 being carried through a socket 12 of refractory material mounted in the plug 2. The electric igniter may be replaced by a friction igniter actuated by means of a pull-wire. In a modification the charge of slow-burning powder has an axial passage and is mounted between a centrally apertured doubleflanged cap and a disc-holding member, the capsule of black-powder being placed in the cap on the opposite side to the charge, the spring 7 being replaced by a distance piece.
Patent GB-720416-A (GB)
Title: Improvements in or relating to rotors for impelling and/or breaking up materials
IPC: B02C13/28
Filed: 1952-05-23
Abstract: 720,416. Centrifugal pumps. LUKENS STEEL CO. May 23, 1952 [Nov. 16, 1951], No. 13110/52. Class 110 (1). [Also in Group II] A rotor for an impeller comprises an arm structure 7 driven by a shaft 10, wear plates 8 interlocked with the arm structure to transmit thereto the centrifugal force on the plates, and wedging mechanism 9, 28, 29 interposed between the plates 8 and the arm structure and adjustable in a plane substantially perpendicular to the direction of the centrifugal force on the rotor. Each arm 7, which may be formed from rolled steel with the grain extending in the direction of the arrow, has holes 15, 16 to receive projections 21, 20 cast integrally with the plate 8. The hole 16 has an inclined wall 18 against which a similar wall 19 on the projection 20 is clamped by co-operation between the wedge 9 and a wall 22 on the projection 21,
Patent GB-779860-A (GB)
Title: Process and apparatus for fire protection
IPC: A62B17/00
Filed: 1956-04-30
Abstract: 779,860. Protective clothing. UNION CARBIDE & CARBON CORPORATION. April 30, 1956 [May 2, 1955], No. 13126/56. Drawings to Specification. Class 141. A protective garment made of foam-pervious material is connected to foam-generating means so that an insulating layer of foam can be distributed between the garment and the wearer while a limited amount of foam escapes through the garment material. In a fireman's overall the foam-pervious layer is flame-resistant, and an inner layer of foamimpervious material may also be provided. The garment has an attached flexible pipe connected either to a main foam-supplying hose or to a foam container carried on the body, the flow of foam being regulated by a valve operated manually or by temperature responsive means.
Patent GB-495064-A (GB)
Title: Improvements in and relating to rotary compressors
IPC: F04C18/54
Filed: 1937-05-07
Abstract: 495,064. Rotary compressors. CLAYTON, C. E. EVERY-. (Michelmotor-Ges.) May 7, 1937, No. 13143. [Class 110 (ii)] The compressor comprises a disc 1 mounted on and rotating with a hub 2 on a shaft 3, and two rotating conical walls 7, each having an integral half-blade 5. The blades abut on the centre line C. Bolts 20 pass through the walls 7 and the centre of each blade 5. A shaft 6 drives the walls 7, which are mounted on ball bearings. The edge of the disc 1 engages in a groove 14. Inlet and discharge ports are provided on the casing parts 10, 11. The blades are mounted in semicircular, rotatable rods 21 in the walls of the disc. At the inner and outer ends of these rods connecting bridge-pieces 23 are fixed. To counteract the effect of centrifugal force on the rods, strips 32 are secured to the disc 1. A bronze strip 27 is inserted between the strip 32 and the rod. The disc is made of light metal. The disc 1 may be the driving member, instead of the walls 7.
Patent GB-353922-A (GB)
Title: An improved press for dating or marking tickets or the like
IPC: B41K3/08
Filed: 1930-04-29
Abstract: 353,922. Dating railway tickets and the like. TORRENS, E. C., 25, Waterloo Street, and BYSAKH, C. L., 121, Upper Circular Road, both in Calcutta, India. April 29, 1930, No. 13147. [Class 100 (ii).] In a press for dating or marking tickets or the like and of the kind comprising two pivoted members one of which carries a punch block and is movable relatively to the other when a ticket is inserted, the punch block is connected by a link to an angularlyadjustable member carried on a rocking pivot pin on which a spring- controlled casing is mounted. As shown, type discs are mounted on a shaft 4 in a hinged part 3 of a casing 1 fixed to a pivot pin 22 mounted in brackets 23 on a base 2. A punch block 19 guided in a recess formed by lugs 17 on a member 9 fixed to the casing is connected by a link 20 to a pair of triangular discs 21 adjustable about the pivot 22, to vary the printing pressure, by turning a nut 25 engaging a screw-threaded rod 24 connected to the discs. The ticket is inserted in a slot 12 in a mouthpiece 13 and is guided by the sides of a recess 10 in the member 9 and by a springy extension 15 of the mouthpiece. The casing is normally slightly inclined forwardly and is rocked backward against the action of a spring enclosed in housings 31, 32 ; curved surfaces 27 on the side members of the casing 1 limit the forward movement thereof.
Patent GB-438695-A (GB)
Title: Improvements in or relating to mounting blocks for electric fittings or accessories
IPC: H02G3/10
Filed: 1935-05-03
Abstract: 438,695. Switch bases. BAIN, R., 25, Beaudesert Road, Handsworth, Birmingham, and ALLDAY, N., The Nest, Streetly Lane, Four Oaks, Warwickshire. May 3, 1935, No. 13162. [Class 38 (v)] [See also Group XXXVI] A mounting for switches &c. comprises a moulded insulating block 5, hollow in the centre 7, and having lugs 10 projecting into the hollow and recessed from the face of the block. Two of the lugs 10 are flush with the back of the block and receive screws 11 by which the block is fixed to the wall 6. The other two lugs have screw-threaded holes 12 moulded therein to receive screw studs by which the base of the switch is secured to the block. The hollow 7 is of a shape corresponding to that of the base of the switch which is thus sunk into the block.
Patent GB-989610-A (GB)
Title: Air circulating furnaces for heating metals
Inventor: MAI GERHARD
IPC: C21D1/767
Filed: 1964-03-31
Abstract: 989,610. Control of heat treatment furnaces. FUCHS G.m.b.H. March 31, 1964, No. 13214/64. Heading F4B. In a heat treatment furnace of the air-circulating type, the direction of air circulation is reversed by alternate operation of fans 5a and 5b at each end of the furnace, the alternate operation being effected by signals generated by a control unit 8 and relayed to motors 6a and 6b which drive the fans 5a and 5b respectively, the control unit 8 being preset to operate when the temperature difference between the ends of the furnace, measured by resistance thermometers 9a and 9b, reaches a predetermined value. A regulator 11 controls heating elements 3 by means of thermocouples 12a and 12b measuring absolute air temperature at the furnace ends, and is arranged such that the control unit 8 connects that thermocouple at the entry end of the air, at each change-over.
Patent GB-143391-A (GB)
Title: Improved disinfecting attachment for flushing cisterns
IPC: E03D9/03
Filed: 1919-05-27
Abstract: 143,391. Dawson, W. May 27, 1919. Water-waste preventers, disinfecting- ,apparatus for.-The discharge valve I of a disinfectant container A is connected by a rod C and lever R with either the float lever or the flush - operating mechanism. When a flush takes place, a small quantity of disinfectant escapes into the cistern below. Reference has been directed by the Comptroller to Specifications 12208/01, 20516/04, 12871/05, and 23093/06.
Patent GB-1042582-A (GB)
Title: Continuous filament bulked yarns
Inventor: RUDDELL JAMES NELSON
IPC: D02G1/18
Filed: 1961-08-26
Abstract: 1,042,582. Spinning yarns. LINEN INDUSTRY RESEARCH ASSOCIATION. Aug. 27, 1962 [Aug. 26, 1961. Jan. 17, 1962 (2); May 25, 1962], Nos. 13302/66, 13303/66, 13304/66 and 13305/66 Divided out of 1, 042, 581. Headings D1F and DIW. [Also in Division B5] In the production of bulked yarn, drawn, wholly synthetic e.g. polyacrylic, thermoplastic, continuous filaments are simultaneously and variably stretched (as they are produced from a spinneret or subsequently) by passage of a sheet of the filaments through a drawing apparatus comprising two pairs of similarly dimensioned and driven, but oppositely disposed, conical rollers linked by mechanism which repeatedly causes the rollers to separate in turn so that the pairs alternately grip and effect stretching of the filaments. All or most of the filaments are thus stretched by varying amounts along their length (dependent on the speed of the rollers and the frequency of transfer of effective operation from one pair to the other) and also across the sheet. The filaments are twisted into a yarn which is subjected to a uniform heat shrinkage treatment to bulk the yarn as a result of differential shrinkage effects within and between the filaments. The effect may be further varied by changing the twist.
Patent GB-495440-A (GB)
Title: Improvements in and relating to x-ray apparatus
IPC: H05G1/04
Filed: 1937-05-11
Abstract: 495,440. R÷ntgen-ray tubes. BRITISH THOMSON-HOUSTON CO., Ltd. May 11, 1937, No. 13388. Convention date, May 11, 1936. [Class 39 (i)] [Also in Group XX] The apparatus comprises a metal casing enclosing an evacuated envelope containing a cathode, an anode and a rotor for rotating the anode, terminal connections associated with the envelope for impressing a high potential difference on the anode and cathode, an electromagnetic stator within the casing and encircling the envelope, and an oil filling in the casing surrounding the envelope and insulatingly separating the terminal connections and stator. In the form shown the envelope 10 contains a rotating anode as described in Specification 495,435 and a dual filament cathode assembly as described in Specification 495,441. The anode bearings are carried on a shaft 45 which projects through the end of the envelope 10, and carries a connection 49 engaged by a projecting stud 31 connected to the high tension cable 27 introduced through bushings 29, 30 attached to the cap portion 90 of the outer casing. This permits easy removal of the cap 90. For this purpose also the current supply for the stator is connected to terminals attached to the cap and engaged by spring contact members on the stator. The cathode connections are introduced through bushings 24, 26. The member 49 is carried on an insulator 50 attached to a semi-cylindrical shell 51, bolted to the stator 39 attached to the main casing 1. A sheath 70 of phenolic resin surrounds the envelope 10 and projects into the space between it and the stator. Lead shields 75, 78 are provided. The cone 20 is also lined with lead. A siphon bellows device 67 takes up expansion of the oil filling of the casing. In a modification the casing contains both tube and exciting transformers. Specification 14892/13, [Class 39 (i)], also is referred to.
Patent GB-117999-A (GB)
Title: Improvements in Cutters or "Hobs" for Milling Screw-threads.
Inventor: RICHARDS GEORGE
IPC: B23G5/18
Filed: 1917-09-18
Abstract: 117,999. Richards, G. Sept. 18, 1917. Milling screws.-A hob is used and the cutter or work is given a motion at right-angles to the line connecting their centres in order that the thread may be cut to the desired depth and the formation of facets avoided. As shown in Fig. 1, the hob B moves in the direction of the arrow b. An alternative method of preventing the formation of facets consists in using a multi-thread hob and making the chases c<1> - - c<4>, Figs. 2 and 3, of abnormal and increasing breadth, and in rotating the hob at a speed inversely proportional to the number of threads.
Patent GB-731016-A (GB)
Title: Improvements in or relating to phenthiazine derivatives
Filed: 1953-05-13
Abstract: The invention comprises phenthiazine derivatives of the formula <FORM:0731016/IV (b)/1> where A is a divalent straight or branched aliphatic chain of 2-3 carbon atoms, and X is hydrogen, halogen, or an alkyl or alkoxy radical of up to 4 carbon atoms, and salts thereof.  They are made by (1) treating the corresponding bodies which contain a halogen atom instead of the amino group by methods known per se for replacement of halogen by amino, e.g. with ammonia, or with phthalimide followed by treatment of the phthalimido derivative with hydrazine; (2) by treating bodies of the formula <FORM:0731016/IV (b)/2> where A is an aliphatic group of 1-2 carbon atoms by a known reducing method, e.g. by catalytic hydrogenation or by reduction with lithium aluminium hydride; (3) reacting the corresponding phenthiazine unsubstituted in 10-position with a phthalimidoalkane of the formula <FORM:0731016/IV (b)/3> where Y is a halogen atom, and treating the product with hydrazine.  In examples of (1) 3 - chloro - 10 - (31 - chloropropyl) phenthiazine and 10-(21-chlorethyl) phenthiazine are each heated with ammonia in ethyl alcohol, or with potassium phthalimide in dimethyl formamide followed by heating with hydrazine hydrate in alcohol; 10-(21-chloropropyl) phenthiazine and 1 - chloro - 10 - (31 - chloropropyl) phenthiazine also are treated according to the second of these methods.  As examples of (2), 10-(21-cyanoethyl) phenthiazine and its 3-chloro or 3-methyl derivatives are reduced with lithium-aluminium hydride or by Raney nickel hydrogenation.  As an example of (3), 3-chlorphenthiazine is heated with bromopropylphthalimide in xylene in presence of sodamide, and the product is then heated with hydrazine hydrate.  The products are converted to their acid maleates.  10 - (21 - Chloropropyl) phenthiazine and 1-chloro-10-(31-chlorpropyl) phenthiazine are prepared by the action of thionyl chloride on the corresponding hydroxypropyl bodies.  10 - (21 - Hydroxypropyl) phenthiazine and 1 - chloro - 10 - (31 - hydroxypropyl) phenthiazine are prepared by hydrochloric acid hydrolysis of the corresponding tetrahydropyranyl hydroxy bodies.  10 - (21 - Tetrahydropyranyl hydroxy propyl) phenthiazine and 1 - chloro - 10 - (31 - tetrahydropyranyl hydroxypropyl) phenthiazine are prepared by the action of 2-tetrahydropyranyl hydroxyl-chloropropene on phenthiazine or the action of 3 - tetrahydropyramyl hydroxy - 1 - chloropropane on 1-chlorphenthiazine.
Patent GB-492776-A (GB)
Title: The manufacture of condensation products
IPC: C08G12/06
Filed: 1937-05-11
Abstract: Aliphatic aldehydes containing not more than four carbon atoms in the molecule are condensed with compounds that contain in the molecule the group -N=C-NHX (X being H or NH2) at least once and preferably twice, in an open, not cyclic form.  Suitable such compounds include benzamidine, N-phenyl- and N-tolylbenzamidine, phenylacet-N-phenylamidine, N-tolylacetamidine, cyananiline or the corresponding hydrazine compound and carbohydrazimine.  Other compounds capable of condensation with aldehydes may be mixed with the specified compounds and the mixture condensed with the aldehydes. In examples, cyananiline, the corresponding hydrazine compound, carbohydrazimine, N-phenyl- or N-tolyl-benzamidine, or N-tolylacetamidine are condensed with aqueous formaldehyde in the presence, in all examples except one, of pyridine.  Specification 455,008 is referred to.  Samples have been furnished under Sect. 2(5) of products obtained by condensing cyananiline with butyraldehyde and carbohydrazimine with paraformaldehyde.
Patent GB-163305-A (GB)
Title: Carburettors for internal combustion engines
IPC: F02M19/02
Filed: 1921-05-12
Abstract: 163,305. Maybach-Motorenbau Ges. May 15, 1920, [Convention date]. Spray carburettors.-An overflow device is provided in connection with the nozzle which, in the event of the float working improperly, conducts any excess fuel either to an auxiliary tank or to waste at a point where there is no danger of fire. Fuel flows from the float chamber 2 through a restricted orifice 6 to a chamber 7 into which dips the nozzle 8 and which is surrounded by a pipe 10. If the fuel rises above its normal level it overflows from the chamber 7 into the pipe 10, and either runs to waste or into an auxiliary tank 11. Perforations 12 may be provided in the nozzle 8 through which air enters when the fuel level falls in the chamber 7 due to the high-speed of the engine.
Patent GB-979487-A (GB)
Title: A new or improved overload clutch or torque limiting device
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: F16D43/206
Filed: 1960-04-14
Abstract: 979,487. Overload release clutches; controlling clutches. FISHER & LUDLOW Ltd. April 6, 1961 [April 14, 1960 ; May 31, 1960], Nos. 13506/60 and 19148/60. Headings F2C and F2L. An overload release clutch for conveyers &c. comprises a driving pulley 11, Fig. 1, mounted for axial and rotary movement on a sleeve 13 fast with a driven shaft 14, a spring 15 biasing the driving pulley to engage holes 17 therein with torque transmitting balls 19 also engaging holes 18 in a disc 12 secured to the driven shaft, a ball-retaining disc 20 carried by the driven disc having inclined slots 21, Fig. 4, through which the balls pass, the inner ends 21a of the slots being at the same radial distance from the clutch axis as the ball-receiving holes 17, 18. On overload, the balls 19 ride out of the holes 17, 18 in the driving pulley 10 and the driven disc 12, and roll along to the ends 21b of the inclined slots 21 in the retaining disc 20, where they are held radially outwards of the holes. To re-engage the clutch, the drive pulley 10 is brought to rest and then turned backwards. The ball-retaining disc 20 may be removed, reversed and put back with the slots 21 directed in the opposite circumferential sense, to enable the clutch to be used when the driving pulley 11 turns in the other direction. The spring 15 biasing the pulley 10 to the clutch engaging position acts through an axially slidable plate 16 which, when the clutch disengages on overload, engages a cam roller 28 to open a switch 26 and stop an electric motor driving the pulley 11. To enable the clutch to be held engaged when the torque loading applied to the shaft 14 exceeds that at which the balls 19 would move to the disengaged position, as when starting the drive, a lock roller 32, Fig. 7, on the end of a lever 29 may be projected by energization of a solenoid 33 to engage the back of the plate 16. The solenoid 33 may be in circuit with the driving electric motor and the arrangement may be such that the solenoid is energized when the motor is first switched on, but de-energized as soon as the motor reaches its normal operating speed, the roller 32 and the lever 29 then falling to a position clear of the plate 16. The lever 29 itself pivots on a lever 31 supporting the solenoid 33 and pivoting on a fixed bracket at 37, a spring 39 yielding to allow clutch disengagement by turning of the lever 31 if a substantial overload is applied to the driven shaft 14 while the lock roller 32 is held in engagement with the plate 16. In a modified form, not shown, a further ball-retaining plate having radial slots through which the balls 19 pass lies beside the disc 20 and can turn relatively thereto.
Patent GB-806725-A (GB)
Title: New veterinary compositions
Inventor: HEPWORTH WALTER
IPC: A23K1/16
Filed: 1956-05-02
Abstract: Veterinary compositions of use against coccidiosis contain as active ingredient a carbanilide derivative of formula <FORM:0806725/VI/1> wherein X stands for halogen other than bromine.  The compositions may contain 0.5 to 90 per cent by weight of carbanilide derivative and may be admixed with foodstuffs for direct consumption so that the proportion of carbanilide derivative is preferably between 0.005 and 0.5 per cent by weight.  The active ingredient may be dissolved in an organic solvent such as acetone and the solution dispersed in the food and the solvent removed.  The compositions may be in the form of powders containing carriers such as talc, kaolin or chalk, or in the form of capsules or tablets, or in the form of aqueous dispersions optionally containing sweetening agents such as lactose and solubilizing agents such as propylene glycol and polyoxyethylene sorbitan monooleate, or in the form of dispersible powders containing dispersing agents such as the condensation product of b -naphthalene sulphonic acid and formaldehyde and the condensation product of cetanol and ethylene oxide, and which may contain urea and methyl cellulose.
Patent GB-550580-A (GB)
Title: Improvements in the manufacture of sodium bicarbonate
IPC: C01D7/10
Filed: 1941-10-22
Abstract: 550,580. Sodium bicarbonate. McGEORGE, W., and MILNER, F. H. Oct. 22, 1941, No. 13605. [Class 1 (ii)] Sodium bicarbonate in finely divided condition is produced by suspending anhydrous sodium carbonate or sodium carbonate monohydrate in a water soluble organic liquid, e.g. alcohol and passing in carbon dioxide at atmospheric or increased pressure, water being present in the reaction. Specifications 532,300 and 532,301 are referred to.
Patent GB-1206076-A (GB)
Title: A grain washing machine
IPC: B02B1/06
Filed: 1969-03-14
Abstract: 1,206,076. Grain washing machine. BUHLER A.G. GEB. 14 March, 1969 [15 March, 1968], No. 13620/69. Heading A2Q. A grain washing machine comprises a housing 1 in which is mounted a washing trough comprising chambers 2 and 3 containing washing worms 5, 6 and stone discharging worms 7, 8, the housing and/or washing trough being made of a plastics material e.g. polyester. The bottom 4 of the trough is removable. The side walls 10, 11 have outwardly extending edges 31 which have recesses 32 for receiving the housing cover 33. In use grain is fed in at one end, and passed through the trough by worms 7, 8 in the opposite direction to the grain. The washed grain is fed to a centrifugal drier.