baber/WOPTO huggingface dataset:
Patent GB-390491-A (GB)
Title: A process for the manufacture of fertilisers
IPC: C05B17/00
Filed: 1931-07-02
Abstract: The Specification, which does not permit of satisfactory abridgment, appears to comprise a method of producing a solid fertilizer having a basis of colloidal carbon by the electrolysis of a solution of a basic salt, e.g. sodium carbonate or potash, of liquors containing ammonia, carbonic acid and organic substances such as humic acid or liquid manure or of ammoniacal liquors obtained from the distillation of lignite, peat, &c.  A diaphragm composed of a finely ground mixture of natural phosphates with such material as cinders, silicates, potassium felspar, straw or sawdust and an anode of carbon, e.g. graphite or retort carbon are used.  The electrolysis is carried out in an iron vat which serves as the cathode and under such conditions as to realize a strong production of colloidal carbon. After the electrolysis the diaphragm material containing colloidal carbon is removed, dried, and used as a fertilizer.
Patent GB-440433-A (GB)
Title: Improvements in or relating to aluminium alloys
IPC: C22C21/12
Filed: 1934-06-28
Abstract: Aluminium alloys containing 3-5 per cent of copper, 1-1,5 per cent of manganese, 0,6-1 per cent of magnesium, and 0,7-1,3 per cent of silicon, after working are quenched from 485-505 DEG  C., preferably 490 DEG  C., and are thereafter reheated, before or after agehardening, at 120-220 DEG  C., for a period of up to 48 hours, for example, at 155 DEG  C. for 12 hours.  A preferred composition contains 4,37 per cent of copper, 1,21 per cent of manganese, 0,7 per cent of magnesium, and 1,23 per cent of silicon.  Up to 0,7 per cent of iron may be present.
Patent GB-846750-A (GB)
Title: A method for centralized automatic lubricating of rings of spinning machines
IPC: F16N27/00
Filed: 1957-06-18
Abstract: 846,750. Spinning rings lubricating. VYZKUMNY USTAV TVARECICH STROJU A TECHNOLOGIE TVARENI. June 18,1957 [June 21, 1956], No. 19186/57. Class 120(2). [Also in Group XXXIV] In a lubricating system for the rings of spinning machines, an electrically-driven gear pump 5, controlled by a time relay 2, 3, 4, draws oil from a tank 1 and supplies it to the rings of adjacent ring banks 19 within adjustable time intervals and for adjustable periods. The ring banks 19 have lateral flanges 7 with aligned longitudinal bores 16 which are connected with the oil supply, adjacent bores 16 being connected by conduits 15. Each ring communicates with the bore 16 through a passage 17 and a cavity in which porous inserts 8, 10, separated by a distance ring, are located. A set screw 9, passing through the distance ring, adjusts the compression of the lower insert 8 so that the flow of oil to each ring may be regulated. The inserts 8, 10 which may be of felt, also act as filters.
Patent GB-1428672-A (GB)
Title: Polymerizable compositions suitable for dental use
IPC: A61K6/893
Filed: 1972-04-25
Abstract: 1428672 Photopolymerizable compositions for dental use AMALGAMATED DENTAL CO Ltd 22 March 1973 [25 April 1972] 19210/72 Heading C3P Photopolymerizable compositions suitable for dental use comprise an adduct of the formula where R<SP>1</SP> is H or methyl, R<SP>2</SP> is alkylene and R<SP>3</SP> is a divalent hydrocarbon radical (the adduct being derived from a hydroxyalkyl (meth)- acrylate and an appropriate diisocyanate), and a minor proportion by weight of an ultraviolet sensitive polymerization catalyst. The compositions may also include a copolymerizable diluent, e.g. an alkyl (meth)acrylate such as methyl methacrylate, and a cross-linking monomer, e.g. poly(meth)acrylate ester of a polyhydric alcohol such as trimethylolpropane trimethacrylate. The catalyst may be a benzoin alkyl ether, e.g. benzoin ethyl ether. In an embodiment, the compositions are cured with ultraviolet light from which substantially all visible light has been filtered out and, for such embodiment, the compositions preferably also include an agent which fluoresces under ultraviolet light. Applications include tooth pit or fissure sealants, tooth restorations, cosmetic veneers, sealing fillings, tooth cavity protection, and attaching orthodontic appliances; the compositions being irradiated with ultraviolet light in situ.
Patent GB-128120-A (GB)
Title: Improvement in Screw-cutting Apparatus.
Inventor: ROMER JOHN ALEXANDER
IPC: B23Q35/20
Filed: 1918-11-22
Abstract: 128,120. Romer, J. A. Nov. 22, 1918. No Patent granted (Sealing fee not paid). Lathes.-An attachment for a lathe is constructed so that the pitch of a screw being cut in the lathe can be varied by a simple adjustment. A rack bar E is reciprocated through worm gearing from the lathe mandrel, and has pivoted to it one end H of a lever F, the other end of which slides in a pivot G adjustable towards and from the rack bar by a screw in the frame T. The bar I, which is adapted to hook on the tool carriage, is attached to the lever F by a pin-and-slot mechanism, so that the tool carriage has a definite proportion of the motion of the rack bar varied by adjusting the position of the pivot G. Specifications 221/02 and 20103/10 are referred to.
Patent GB-295627-A (GB)
IPC: C03C4/00
Filed: 1928-07-03
Abstract: 295,627. Rieck, W. O. P., (trading as Rieck vorm. Crown Cork Co., Ltd., Hamburg Branch, W.O.P.). Aug. 15, 1927, [Convention date]. "Crown corks," applying.- Relates to sealing heads for crown-corking machines of the type comprising a cylindrical series of segments held together by a spring. According to the invention the faces 16 of the segments 1 are spherically curved or coned to permit the sealing ring to expand conically on the entry of the bottle 13, to be sealed. The sealing ring which may comprise any number of segments 1 assumes to cylindrical formation as the bottle is further advanced therein to complete the sealing operation.
Patent GB-200364-A (GB)
Title: Cylinder ends or covers for internal combustion engines
IPC: F02B75/02
Filed: 1922-07-13
Abstract: 200,364. North British Diesel Engine Works (1922), Ltd., and Maclagan, J. C. M. July 13, 1922. C y l i n d e r s receiving liquid fuel. - Grooves or their equivalent 14 are formed in the fuel injection valve casing 12 to permit the starting air from the valve 13 to pass to the combustion space 11. Specification 173,145 is referred to.
Patent GB-582851-A (GB)
Title: Improvements in and relating to pulse generating systems
IPC: H03K3/537
Filed: 1943-11-17
Abstract: 582,851. Impulse generators. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). Nov. 17, 1943, No. 19228. [Class 40 (v)] In an arrangement for producing across a load a voltage approaching to a rectangular wave form, spark-gap switching means is provided for short-circuiting the load at a predetermined time interval after the initiation of the pulse to cause the voltage to drop abruptly from a maximum to the minimum value so that a pulse of more exactly rectangular wave form is produced. The arrangement is particularly applicable to the pulse generating apparatus described in Specification 582,850, in which a charged capacitive storage element is connected to a load by a spark-gap assembly having two spark-gaps in series and in which a predetermined initial apportionment of the voltages across the gaps is changed to produce triggering and thus a break-down of the sparkgaps to ensure the discharge through the load of the pulse from the storage element. The Figure shows an arrangement of this type fed from an A.C. source in which the short-circuit of the load is effected by auxiliary spark-gaps 33, 34, the auxiliary spark-gaps are similar in construction to the main spark-gaps, but of smaller size and similarly quenched by an airblast. The gaps 33, 34 are preferably equal in length and shunted by equal impedances consisting of condensers 35, 36 as shown, for apportioning the initial voltages of the gaps. The instant of break-down of the gaps 33, 34 is dependent upon the value of the resistance 37 connected in shunt with one of the gaps and on the charging voltage. The length of the gaps is such that with the resistance 37 disconnected a break-down does not occur. Undesired oscillations which would interfere with the triggering by the multi-vibrator during the sparking period which would tend to occur due to the short-circuiting of the load by the gaps 33, 34 in the circuit comprising the line 1, the spark gaps 14, 15, 33 and 34 is suppressed by a resistance 38 connected to series with the line 1 which provides the capacitive element charged.
Patent GB-766587-A (GB)
Title: Improvements in or relating to semiconductors
IPC: H01L29/24
Filed: 1954-07-01
Abstract: A semiconductor consists of (by atomic proportions) two parts of copper and/or silver, one part of iron, one part of tin and/or germanium and four parts of selenium.  The material may consist of a solid solution of two or more compounds having a crystal structure approximating to that of the stannite structure.  It is preferably in unicrystalline form produced, for example, by a zone melting process.
Patent GB-614021-A (GB)
Title: An improved apparatus for supplying water vapour to internal combustion engines
Filed: 1946-06-29
Abstract: 614,021. Treating charge. SUTCLIFFE, T. June 29, 1946, No. 19498. [Class 7 (ii)] A water tank is provided with a valve comprising a member 5 slidingly guided by a slot 10 co-operating with a screw 11 in a pipe 4 connected through a non-return valve 7 to a pipe 6 leading to the intake manifold, a pipe 12 formed on the pipe 4 leading to a dome 13 at the top of the tank. Movement of the member 5 to the left cuts off the pipe 12 and allows air to enter the pipe 4 through holes 9 and the slot 10, whilst movement to the right brings a hole 8 beneath the pipe 12 so that moist air is drawn into the pipe 4, the air entering the tank through a pipe 3 below the water level. The valve may also be positioned to prevent either moistened or atmospheric air being supplied. Baffles 14, 15 are provided to prevent water splashing into the pipe 12, and the water level is ascertained through a sight glass. The member 5 may be remotely operated through a Bowden cable.
Patent GB-147593-A (GB)
Title: Weight lifting magnet
IPC: H01F7/20
Filed: 1920-07-08
Abstract: 147,593. Krupp Akt.-Ges., F. May 28, 1919, [Convention date]. Electro-magnets.-A lifting-magnet of the bellshape type comprises a number of movable polepieces D fitting into recesses in the exterior surface of the magnet and separated from the body of the magnet by air gaps E. The pole-pieces are each hinged at one end to the body of the magnet, the other end being free and extending beyond the under surface of the magnet. The inner pole a' may also be subdivided and made wholly or partially movable.
Patent GB-759707-A (GB)
Title: Improvements in the equalisation of load between mechanically coupled electric motors
Inventor: GUNTON FRANK DE LA ROCHE
IPC: H02P5/69
Filed: 1953-07-15
Abstract: 759,707. Control of several D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. July 15. 1954 [July 15, 1953], No. 19650/53. Class 38(3) Equal load sharing of mechanically coupled motors is ensured by connecting the separately-excited field windings of the motors in series and supplying them with current which is kept at a set value. The continuity of the field circuit is maintained when one or more of the motors are disconnected from the others by having contacts which close when the contacts connecting a field winding in circuit are opened. Adjustable trimming resistances are connected in shunt with each field winding to compensate for differences between the characteristics of the motors. The set value of the field current may be altered for speed control. Specification 759,706, [Group XXXV], is referred to.
Patent GB-1522521-A (GB)
Title: Electric windscreen wiper systems
IPC: H02P5/50
Filed: 1976-04-30
Abstract: 1522521 Automatic control of D.C. motors GENERAL MOTORS Ltd 30 April 1976 [10 May 1975] 19754/75 Heading H2L A windscreen wiper system comprises a pair of closely similar D.C. motors A, B each driving a respective wiper arm and blade assembly and each controlled by an identical transistor amplifier and switching circuit 28, 32, whose transistors 34 are controlled by signals a, b produced by a logic circuit 10 of a quad two input NAND gate type, Fig. 2 (not shown), the inputs to circuit 10 being signals A, B which are produced by respective switches associated with the motors A, B, each switch consisting of the sectored and segmented plate of Fig. 4 which rotates with a gear wheel driven by the motor and engages or disengages a contact (not shown) to produce a 1 or 0 level signal respectively, the circuit of Fig. 1 operating to maintain the motors in synchronism by virtue of the following features:- (1) If signals A, B have the same level (i.e. 0 or 1), signals a, b are both 1 and transistors 50 are switched on to energize the motors. (2) If signal A or B changes from level 0 to 1 before the signal B or A, the signal a or b changes to level 0 to switch off the transistor 50 of the faster motor, which then slows down or stops until the signal of the slower motor changes from level 0 to 1, whereupon the faster motor is re-energized. (3) To prevent the slower motor being switched off when the signal of the faster motor changes from level 1 to 0, which could result in the slower motor being stopped until the faster motor has rotated to cause its plate sector to re-engage its contact, each plate has a segment S positioned as shown and of such length that, if the corresponding motor is de-energized as its contact engages segment 5, the inertia of the motor is sufficient to ensure continued rotation until the contact disengages segment S. Thus, if motor A is the faster the interaction of signals A, B, produced by engagement and disengagement of the respective sectors, segments and contacts, will result in two successive energization/re-energization operations of motor B and one such operation of motor A if its contact is engaging segment S when the contact of motor B disengages its sector. When the aforementioned sequence is completed both motors are running for a further speed correction as in (2) above. Conventional parking switches for each motor ensure that:- (1) signals A and B are at the same level when a switch 20 is closed, so that the motors are simultaneously switched on, and (2) the circuit of Fig. 1 may be applied to control two-speed three-brush motors braked, when switched off, by short circuiting of the armature.
Patent GB-587494-A (GB)
Title: Improvements in or relating to optical projection apparatus
IPC: G03B21/10
Filed: 1944-10-13
Abstract: 587,494. Optical-projection apparatus. STANDARD TELEPHONES & CABLES, Ltd., and ATKINS, P. P. Oct. 13, 1944, No. 19788. [Class 97 (i)] [Also in Group XIX] Optical projection apparatus comprises means for supporting an object, a vertical screen adjacent to the object, means for projecting away from the object a light beam for forming an elarged silhouette image thereof, a pair of mirrors set at an angle of 90 degrees for causing the said image to appear on said screen, and means for rigidly locating the mirror system at different distances from the screen and object to produce different degrees of magnification of the image. As shown, light from a lamphouse 4 is thrown by a condenser 5 after reflection from a mirror 6 on to the object on the table 9. The lens 7 forms an image on a screen in the frame 14 after the light beam has been reflected from mirrors 11, 13. The frame 14 is clamped by screws 15 to the casting 2. The holes are oval in shape to allow vertical, and also slight tilting, adjustments by the wheels 22 on screws 23 supporting the frame. The frame carries two layers of glass between which a template or chart may be clamped. The members 10, 12 carrying the mirrors are secured to the base in alternative positions to provide the different degrees of magnification, alternative fixings for the top of the member 12 also being provided.
Patent GB-1469340-A (GB)
Title: Ammonia flue gas desulphurization process making elemental sulphur
IPC: C01B17/05
Filed: 1974-05-06
Abstract: 1469340 Removal of sulphur oxides and nitrogen oxides from gases; sulphur EXXON RESEARCH & ENG CO 6 May 1974 19817/74 Heading C1A Sulphur oxides and nitrogen oxides are removed from a gas stream by a process which comprises (a) contacting said gas stream in a scrubbing zone with an aqueous solution containing ammonium thiosulphate with ammonium sulphite and/or ammonium hydroxide, (b) withdrawing said gas stream, (c) withdrawing the aqueous scrubber effluent, (d) reacting at least a portion of said scrubber effluent solution with hydrogen sulphide in an aqueous liquid phase at a pH of at least 4.5 in a reaction zone to produce elemental sulphur, (e) separating said sulphur and (f) returning at least a portion of said aqueous phase to said scrubbing zone. Another portion of effluent (c) may be reacted with ammonia and H 2 S or S to prepare fresh scrubber solution for recycle. The temperature in the reaction zone may be such as to obtain the S in liquid form.
Patent GB-313777-A (GB)
Title: Improvements in or relating to pipes or conduits
IPC: F16L53/00
Filed: 1928-07-09
Abstract: 313,777. Stockton, J. July 9, 1928. Pressure - relieving devices for fluids.-To prevent bursting of metal pipes by freezing, the pipe is divided at one or more places, adjacent ends being connected by tubular lengths b of rubber or other soft, flexible, or pliable material secured by band clips c and bolts d. Adapters e may be secured to the ends of the metal pipe by clips f, and the rubber &c. pipe b may be connected to the adapters. A metal sleeve h or a hinged &c. cover may surround the pipe b. Specification 249,927 is referred to.
Patent GB-280144-A (GB)
Title: Improvements in shirt collars
IPC: A41B3/00
Filed: 1927-07-26
Abstract: 280,144. Bezner, H. July 26, 1927. Collars, linen.-To facilitate ironing, a double collar is provided, preferably on the inside of the neck band, with a mark in the form of a full or dotted line d, Fig. 1, which may be printed but is preferably in the form of a seam. In ironing, the collar is stretched so that this mark forms a straight line, with the result that the collar assumes the correct bend at the fold e, as shown in Fig. 3, to accommodate the neck-tie.
Patent GB-498691-A (GB)
Title: Improvements in the manufacture of piston and like rings of the composite type
IPC: B23P15/08
Filed: 1937-07-19
Abstract: Composite piston and like rings comprising inner and outer layers of different metals or alloys are made either by cutting from a pot composed of two superposed cylinders brazed, soldered or welded together, or the two parts are made separately and stacked round a shell of brazing material.  The outer ring may be of cast iron and the inner ring of steel.  Heat treating may also be effected before or after the rings are parted from the pot so as to harden one or both parts or the hardening may be effected during brazing.  The cast iron ring may contain carbon 3,4 per cent (combined carbon 0,65 per cent), silicon 2 per cent, nickel 0,5 per cent, molybdenum 0,6 per cent, and copper 0,3 per cent, and the steel ring may contain carbon 0,5 per cent, chromium 0,75 per cent, and molybdenum 0,25 per cent, so that both components may be hardened at one operation at the same temperature, e.g. 850 DEG  C. and subsequently tempered as desired. Hardening may be effected by oil, water or air cooling.  The cast iron may be of the austenitic type, in which case the steel only is hardened, e.g. by heat applied behind the composite ring.
Patent GB-292793-A (GB)
Title: Improved fastening and locking means for clothes cupboards, lockers, or like furniture
IPC: E05B65/02
Filed: 1927-07-27
Abstract: 292,793. Stuck, E. July 27, 1927. Multiple fastenings. - Fastening and locking means for clothes cupboards, lockers or the like comprise a bar 18 with latches 20 thereon which is moved obliquely and downwardly, being carried by studs 17 which slide in oblique slots 16 in the door, to cause the latches 20 to engage a flange or slots in the side panels of the cupboard; the bar 18 is retained in the closed position by a lock bolt 23 which when shot projects against a lug 22 on one of the latches. The latches are extended rearwardly at 20<c> to cover the slots 16.
Patent GB-1212640-A (GB)
Title: Process for treating aluminium base articles
IPC: C23C22/66
Filed: 1969-04-18
Abstract: 1,212,640. Modifying aluminium surfaces. OLIN CORP. April 18, 1969 [April 22, 1968] No.19992/69. Heading C7U. An aluminium or aluminium alloy surface, which may be precleaned, is oxidized by contacting for 5 seconds to one minute with a solution in purified water of from 0.0001 to 0À3% by weight of a substance selected from the group consisting of methylaminobispropylamine, methoxypropylamine, aminopropylmorpholine, dimethylaminopropylamine, aminobispropylamine, and/or a hydrazine selected from the group consisting of monomethylhydrazine, and alpha alpha dimethylhydrazine. The pH is from 7 to 11 and the temperature being 85‹C. to boiling. The aluminium may be subsequently given an acid rinse with citric, oxalic, tartaric, glycollic, phosphonic, and chromic acid. The solution may contain a wetting agent.
Patent GB-1335741-A (GB)
Title: Magnetic chuck
IPC: B23Q3/154
Filed: 1971-04-19
Abstract: 1335741 Magnetic holding devices W MAURER 19 April 1971 [16 Feb 1970] 20186/71 Heading H1P A magnetic chuck (Figs. 1, 2) comprises baseplate 1 overlain by rectangular steel frame 2 whose upper face is covered by a non-magnetic layer 19 of, e.g. brass, aluminium, white metal or plastic on which is disposed a ferromagnetic head plate 3 supporting the workpiece 5, which is slotted to receive high permeability pole shoes 6 surrounded by a gap filled with securing non-magnetic material, e.g. brass, aluminium, white metal or plastic. A homopolar pack of permanent bar magnets 10, enclosed within a ferromagnetic grid 12, 13 by non-magnetic material 15, e.g. brass, aluminium, white metal or plastic is laterally displaceable by lever 8 relatively to the frame 2 and the base-plate and gap is left between the grid and the headplate on which the magnet poles abut. Lever 8 operates an eccentric pin and lever (Fig. 3, not shown) to laterally move the pack which in the position shown generates flux 14 engaging and attracting the workpiece to surface 4, while the bars 12 of the grid and pole shoes 6 coincide to complete the magnetic circuit. In the displaced position, magnets 10 are aligned in the pole shoes 6 and the cross-bars 12 are out of alignment with them so that the magnetic circuit is completed through the cross-bars, the polepieces, and the headplate to release the workpiece. A magnetic plate 16 underlying base-plate 1 is magnetized with poles at the top and bottom faces to oppose the polarity of magnets 10 and suppress undesired flux therefrom through the machine table and the tool operating on the workpiece. Plate 16 may be laminated and spaced.
Patent GB-422423-A (GB)
Title: Improvements in or relating to power transmission mechanism and variable speed gearing
IPC: F16H61/02
Filed: 1933-07-19
Abstract: 422,423. Variable - speed gearing. NEWTON, N. B., c /o Newton & Bennett Works, Valetta Road, Acton, London. July 19, 1933, No. 20341. [Class 80 (ii)] A power-transmission system comprises in combination a centrifugal main friction-clutch and a variable-speed gear having frictional selecting and drive-providing mechanism, such as brake-bands or clutches. The latter may be hydraulically-moved expanding cones. The gear may be the Wilson epicyclic gear described in Specifications 164,042 and 328,660, [both in Class 80 (ii)]. Specifications 353,108, 353,109, and 353,334 also are referred to.