baber/WOPTO huggingface dataset:
Patent GB-184642-A (GB)
Title: Improvements in and relating to post office furniture
IPC: B07C7/02
Filed: 1921-06-21
Abstract: 184,642. Bourn, R. T. June 21, 1921. Sorting on picking or sorting tables and the like. -A postal sorting-table adapted for folding up for transport carries a sorting-case with shelves having removable partitions secured to pivoted clamping bars so that each shelf may be removed independently of the partitions. The partitions are shaped so as not to tear envelope flaps and provision is made to enable the shelves to be withdrawn without twisting. A further device to facilitate sorting of newspapers and large mail is provided. The table 1, Fig. 1, carries a sorting- case 2 having shelves 3 on which partitions 5 have upper edges sloping at an angle less than that of envelope flaps, Fig. 8, to avoid entering the ungummed portion of the flap and tearing it. A shaft 54 in each shelf carries gear-wheels 55 at each end engaging racks 56 to avoid twisting on withdrawal. The shelves run on rollers 58 and have further rollers at their ends engaging against the sides of the case. The partitions 5 engage slots in supports 10 mounted by pivots 11 in the ends of the case so that all the partitions on a shelf may be lifted simultaneously before withdrawing a shelf. Each partition engages by a projection 16 behind a clamping- bar 15, which is loosened slightly in the form shown to permit insertion of the projection 16. In another form the projection 16 is tapered to avoid loosening the clamping-bar 15. The lower edges 26 of the partitions just clear the shelves, adjusting-screws being provided behind the supports 10 to determine this position. In another form the lower edges of the partitions may rest in slots in the shelves and the spaces below the inclined lower edges 20 may be filled with shaped metal partitions let into grooves in the shelves. The front edges of the partitions may be coloured to distinguish localities to which sorted letters are addressed. Horizontal stiffening-ribs may be fixed on the partitions at their rear ends. A separate sorting- device for papers, Fig. 10, is used with the back 61 to the operator, the sorted papers in the spaces between the partitions resting on a loose strap or tape 63 so that eventually the receptacle may be withdrawn leaving the sorted papers on the tape arranged to be bundled up by the strap. Larger spaces for sorting are provided by the shelves 40, 41, Fig. 1, and a shelf 49 serves as a footrest or a shelf for heavy packages. When the sorting-table is packed up, it fits into a rectangular case for transport.
Patent GB-165403-A (GB)
Title: Improvements in inductances for loading telephone circuits
IPC: H01F17/08
Filed: 1921-06-22
Abstract: 165,403. Felten & Guilleaume Carlswerk Akt.-Ges. June 25, 1920, [Convention date]. Addition to 157,316. Drawings to Specification. Inductances.-Relates to the system of loading duplex four-line telephone systems, as described in the parent Specification, in which the two coils are placed on either side of an annular disc and are magnetically connected thereto by iron bridges at their pcles, and consist in compensating any lack of symmetry, due to stray fields in the disc from the bridges which set up disturbances in the coils, by winding the free end of the disturbing coil around the corresponding half of the disc in such a direction that the disturbance disappears. The compensation windings may be wound near the bridges or at the middle of the halves of the disc.
Patent GB-695880-A (GB)
Title: Improvements in or relating to magnetic devices for obtaining a gyroscopic effect whilst simultaneously ascertaining the direction of a magnetic field in which the device is immersed
Filed: 1950-07-10
Abstract: 695,880. Electric indicating systems. MINAS, G. July 10, 1950 [Dec. 22, 1949], No. 17166/50. Class 40 (i). An earth inductor compass comprises a Z- shaped permanent magnet rotated in the earth's field and co-acting with two concentric induction coils in one of which an e.m.f. having a phase dependent on the direction of the earth's field, is generated and in the other of which a reference e.m.f. for phase comparison purposes is generated by the magnet. An electric motor or, as shown, a turbine-wheel 1, drives a Z-shaped permanent magnet having a central vertical portion 3, concentric with the .gimbal mounted rotor shaft 2, and oppositely disposed horizontal arms 4, 5. As the Z-shaped magnet rotates in the earth's field 6 a sinusoidal e.m.f. is induced in a coil 10 embracing the portion 3 owing to combined magnetic effect of the magnet and the earth's field and is applied to one coil of a phase meter 18'. The rotating magnet 3, 4, 5 also induces e.m.f.'s in the three phase delta connected stator coil 12 to produce a corresponding rotating field in the stator 13 of a bearing indicator 16, 17, the rotor coil 14 of which is connected,to the other winding of the phase meter. The rotor 14 is then manually rotated until the phase of the e.m.f. induced therein is the same as that induced in the coil 10, as indicated by the phase meter 18', when the angular position of the rotor 14 indicated by the dial 16 and pointer 17 gives the compass bearing.
Patent GB-1209908-A (GB)
Title: Long chain hydrocarbon alcohols
IPC: C07D303/42
Filed: 1967-08-30
Abstract: 1,209,908. Long chain hydrocarbon alcohols. ZOECON CORP. 30 Aug., 1967 [24 Feb., 1967], No. 17167/70. Divided out of 1,209,902. Heading C2C. Novel alcohols of the formula in which each of R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> is C 1-5  alkyl, Z<SP>6'</SP> and Z<SP>7'</SP> and Z<SP>10'</SP> and Z<SP>11'</SP> are each hydrogen or Z<SP>6'</SP> and Z<SP>7'</SP> or Z<SP>10'</SP> and Z<SP>11'</SP> together represent a carbon-carbon double bond, provided that (1) when each of R<SP>1</SP> and R<SP>2</SP> is methyl and one of R<SP>3</SP> or R<SP>4</SP> is methyl, then each of Z<SP>6'</SP> and Z<SP>7'</SP> is hydrogen, and (2) when R<SP>1</SP> is methyl, one of R<SP>3</SP> or R<SP>4</SP> is methyl and Z<SP>6'</SP> and Z<SP>7'</SP> together represent a double bond, then R<SP>2</SP> is C 2-5  alkyl, are prepared by reacting a ketone of the formula with vinyl magnesium bromide in an inert solvent. The example relates the preparation of compounds excluded by the provisos above and to 3,11-dimethyl-7-ethyltrideca-1,6,10-trien-3-ol.
Patent GB-647810-A (GB)
Title: Improvements in or relating to setting compositions
IPC: C04B28/32
Filed: 1949-06-23
Abstract: A fireproof setting composition comprises expanded vermiculite, magnesite and a solution of magnesium chloride with or without fitting agents.  Specified filling agents are perite, slate dust, china clay or hydraulic cement either singly or in combination. The composition can be pressed into shape between layers of paper, plywood or sheet metal, and if fibrous, sheets are waterproofed by a synthetic resin layer.  Casein and borax in the composition improves its adhesion to the paper.
Patent GB-1163681-A (GB)
Title: Rotary Piston Internal Combustion Engine.
IPC: F02B53/12
Filed: 1968-04-10
Abstract: 1,163,681. Rotary-piston internal combustion engines. NSU MOTORENWERKE A.G. and WANKEL G.m.b.H. April 10, 1968 [April 29, 1967], No.17195/68. Heading F1F. A rotary-piston I.C. engine with external ignition, as described comprising a housing having a two-lobed epitrochoidal inner surface 6, Fig. 1, within which planetary rotates a three-sided piston includes in its wall 1 a sparking-plug socket 2 having an internal thread 3 to receive a sparking-plug 4. A flame passage 5 extending from the socket and breaking through the surface 6 includes an insert 8 made from material housing substantially the same coefficient of thermal expansion as the material of the housing and a good thermal conductivity and resistance to heat. Suitable materials are aluminium alloy for the housing and pure copper for the insert. The insert protects the housing from overheating and consequent damage. In another embodiment, the internal thread 3<SP>1</SP>, Fig.2, is extended through to the surface 6. This enables the insert 8 to be brought closer to the cooling water spaces 7 of the housing. If the housing is coated, e.g., with chromium, the socket mouth is coned with the coating extending into the coned mouth. The insert then includes a complementary coned fort which prevents the coating spalling off or exfoliating.
Patent GB-851829-A (GB)
Title: Improvements in starting gears for reversible internal combustion engines
IPC: F02N7/08
Filed: 1959-05-20
Abstract: 851,829. Engine turning-gear. CESKOSLOVENSKE ZAVODY NAFTOVYCH MOTORU PRAHA NARODNI PODNIK, and DLUBAL, M. May .20, 1959 [June 16, 1958], No. 17202/59. Class 7(5). A starting gear for a reversible internal-combustion engine comprises a starter motor, a gear-wheel connected to the crank-shaft of the engine and two pinions which are axially movable independently of one another into and out of mesh with the gear-wheel and are in permanent mesh with one another, one pinion being operatively connected to the rotor of the starter motor. When the engine is to be started in a forward direction of rotation compressed air is admitted to the pneumatic starter motor A and simultaneously into the channel 14 so that the starter motor begins to rotate and at the same time the pinion 10 is brought into engagement with the gear 19 of the flywheel through the action of the compressed air in the pneumatic cylinder 13. If the engine is to be started in reverse compressed air is admitted through the channel 24 to the pneumatic cylinder 23 so that the pinion 20 is brought into engagement with the gear 19.
Patent GB-418966-A (GB)
Title: An improved brush
IPC: A46B7/02
Filed: 1934-06-11
Abstract: 418,966. Brushes. HALL, L. H., 24, McMaster Avenue, Toronto, Canada. June 11, 1934, No. 17204. [Class 19.] A collapsable brush comprises a rigid case 10, Fig. 3, a series of bristle bars 14<1>, Fig. 6, rotatably supported therein on toothed members 15 in mesh with a movable rack member 17 and a stationary rack 18 attached to the casing 10. The casing is closed by a lid 10<1>, Fig. 1, preferably carrying a comb 12. The upper racks 17 are connected at their ends by a cross member 19, Fig. 3. A member 20 pivoted at 21 is employed to operate the tufts by a pin 22 fitting into a slot 23 in the cross member 19. A handle 24 on the member 20 projects through a slot 25 in the casing 10 and can be turned forward and locked in position by a recess 251 engaging the casing.
Patent GB-1088076-A (GB)
Title: Apparatus providing a constant-rate two-component flow stream
IPC: G05D11/13
Filed: 1966-04-20
Abstract: 1,088,076. Mixing fluids in proportion. INSTRUMENTATION SPECIALITIES C.O. Inc. April 20, 1966 [Jan. 5, 1966], No. 17344/66. Heading B1C. [Also in Division F1] Two streams 11, 14 of fluid are combined by two pumps 12, 15 into one stream 18 of constant flow, the pump speeds being controlled by a programming device 25 such that when the pump 12 is at maximum speed the pump 15 is stopped and as the speed of the pump 12 is decreased the speed of the pump 15 is increased until the pump 12 is stopped when the pump 15 is at maximum speed, and vice versa/Thus the output stream 18 may comprise entirely a fluid 13 at the start and change progressively to comprise entirely a fluid 16 after a chosen time interval. The pump speeds are controlled by voltage controlled oscillators 27, 27' which are fed with a decreasing voltage supply which lowers the frequency of oscillator 27 but increases that of oscillator 27'. The voltage supply is derived from potentiometers 29-39 and a stepping switch 26 which advances at chosen time intervals under the action of a pulse generator 42. When the pump 15 has reached its maximum speed, the flow may be stopped after a chosen time or reverted to the first fluid. Servo amplifiers may be used as alternatives to the oscillators 27, 27'.
Patent GB-1526653-A (GB)
Title: Electrical-discharge machining process
IPC: B23H7/06
Filed: 1977-04-27
Abstract: 1526653 Automatic control of electro-erosion ATELIERS DES CHARMILLES SA 27 April 1977 [5 May 1976] 17495/77 Heading G3N [Also in Division B3] In an electro-discharge machining process, a tool 1 is moved vertically by a servo 5, 6 into a workpiece 2 and is simultaneously moved in a horizontal plane by a slide table 7 controlled by a variable eccentricity mechanism 13 driven by a stepping motor 8. Machining is carried out in a series of passes to produce a number of successive surfaces, the final envelope of which corresponds to a desired profile. The shape may be cylindrical, conical or hemispherical, Figs. 2-5 (not shown), and is determined by the setting of switches S1-4 and a cam 23. Control is effected by logic circuitry responsive to a pulse generator 53 and including a shift register 51, bi-stable 58 and monostable 59. The size of the machining gap is controlled by a voltage detector 24 and feedback loop 25-30 acting on the servo 5, 6.
Patent GB-596226-A (GB)
Title: Improvements in or relating to apparatus for simultaneously polishing both faces of a travelling strip of glass
IPC: B24B7/24
Filed: 1944-09-13
Abstract: 596,226. Polishing glass. PILKINGTON BROS., Ltd., WALDRON, F. B., and GRIFFIN, J. H. Sept. 13, 1944, No. 17511. [Class 60] In apparatus for simultaneously polishing both faces of a horizontal travelling strip of glass which is fed by rollers between coaxial upper and lower polishing tools, the latter supporting the glass during polishing and comprising a number of pads, each of which is brought as the tool rotates to the edges of the strip of glass, the pads are so mounted on horizontal arms that, in an appropriate position of the tool, the arm can be swung about a vertical pivot so that the pad projects wholly or substantially beyond the edge of the glass, to allow replacement of the felt or cleaning, scraping, &c. thereof. In one form, Fig. 2, the pad 10 is rotatable about part 11 in an arm 7 having a part 8 fitting in the end 9 of an arm 6 of sub-frame which is rotatably mounted at 5 on arm 4 of main frame carried by vertical driving shaft; a screw 13 engages a groove in the part 8 to prevent undesired rotation of the arm 7 ; the pad can be vertically adjusted by screw 18. In a modification, Figs. 3 and 4, the pin 15 has a threaded portion 17 engaging an internally-threaded sleeve 20 having feathers 21 engaging grooves 22 in the sleeve 8 ; the top of the pin 15 carries a bevel gear 23 meshing with a bevel gear 25 on a shaft 26 passing radially through the sleeve 8 of the arm 7. In a further modification, Fig. 6, the sub-frame turns on a vertical pivot 5 fixed to an arm 35 having a vertical pivot 36 turning in the cupped end of the arm 4 of the main frame. The arm 35 is normally locked by a key 37 ; on freeing this, the arm 35 and the sub-frame carried thereby can be swung outwardly so that one of the pads is free of the glass. In a further modification, Fig. 7, the tool comprises a main frame only, having four arms 4, each carrying a single pad 10 ; each pad is rotatably mounted on an arm 7 pivoted to the arm 4.
Patent GB-175173-A (GB)
IPC: B60B15/00
Abstract: 175,173. Bentz, J. A. Jan. 17, 1921. Tyres, non-elastic. - Tread grips 2 for the wheels of tractors are obliquely disposed across the rim 1 alternately in opposite directions and are secured by the hooked ends 3 engaging the edges of the rim, one end of each grip having a tongue 5 with a turned-up lip 6 adapted to interlock with the hooked end of the adiacent member. The whole series is secured on the wheel and against creeping by a bolt 7 passing through lugs 8 on the end members of the series and through a plate 10 secured to the inside of the rim. The grips may be provided with extensions 16 to support an extension rim 17. The extensions may have plain downturned lips 16<1> or may be formed with hooked ends 16" in which case the extension rim is held at its inner edge by blocks 18.
Patent GB-648312-A (GB)
Title: Improvements in or relating to apparatus for filling valve bags
IPC: B65B1/18
Filed: 1947-07-03
Abstract: 648,312. Dashpots. ST. REGIS PAPER CO. July 3, 1947, No. 17536. Convention date, Oct. 17, 1940. [Class 108(iii)] [Also in Group XVIII] A hydraulic shock absorber and timing device incorporated in an automatic feed weigher comprises a cylinder 100 in which slides a rod 102 carrying perforated pistons 103, 104, the latter of which has non-return ball valves 105 which, by closing the perforations during the upward stroke, force the fluid through a port 111 into a passage 110, and then through a port 120, see also Fig. 4, past a needle valve 121 and then via passages 123, 107 past a second needle valve 108 into the bottom of the cylinder. These valves are adjusted to give a predetermined time delay between the application of an upward force on the rod 102 and the completion of the upward stroke. To enable the rod to move quickly at the start and finish of the stroke the pistons 103, 104 form slide valves which uncover ports (not shown) at the ends of the stroke and so byepass the needle valves. The timer also acts as a shock absorber during downward movement of the pistons, which then act as in a normal dashpot and, in addition, a certain control is effected by adjusting the needle valve 108. Air is in contact with the liquid surface in a chamber 13.
Patent GB-1322611-A (GB)
Title: Speed control systems
IPC: G11B19/28
Filed: 1971-05-27
Abstract: 1322611 Magnetic disc machine DIABLO SYSTEMS Inc 27 May 1971 [9 July 1970] 17541/71 Heading G5R [Also in Division G3] The average speed of a motor is kept constant by selectively switching between respective means for driving it at a speed greater than and less than said average, the less than average speed being greater than zero. The motor 16 is a D.C. machine driving a magnetic memory disc 12 in a cartridge 11 and an air blower for cleaning the disc. The drive plate has a notch which is electromagnetically detected to produce actual speed pulses 32 for comparison with pulses derived from a counter 33 which effectively divides the frequency of a reference oscillator 34 by 2000. Comparison is made by a logic device 46 which is respectively set and reset by the reference and actual speed pulses. Its corresponding outputs Q, Q enable high and low speed drive units 26, 27 which vary resistance in series with the motor (Fig. 3, not shown). During starting a logic circuit 42 arranges that the high speed unit 26 is enabled while the counter 33 is switched to the pulses from detector 32. Thus high speed is held for 2000 revolutions and this is sufficient for the motor to reach the overspeed (30% over) condition. The blower 21 (Fig. 1) on the motor shaft blows air through the cartridge to remove dust; the overspeed at start-up ensures that this is effective and also provides an air cushion for the read/write heads 17 which at the end of start-up are moved into the operative position by a rack and pinion 18 driven by a motor 19.
Patent GB-1091543-A (GB)
Title: Transitional coupling gear for railway vehicles for coupling to both conventional screw-tightener and to automatic couplings
IPC: B61G5/04
Filed: 1965-04-26
Abstract: 1,091,543. Transition ralway couplings. SOCIETE GENERALE ISOTHERMOS. April 26, 1965 [May 12, 1964], No. 17542/65. Heading B7T. A transitional railway coupling comprises a hook 1 on which is pivotally mounted a connecting rod 5 carrying conventional screw tightener linkage formed by parts 6-10 which are held in an out of use position on a hook 11, the rod 5 having a hook or notch 12 in which is located a pivot 14 provided at the end of a connecting rod 15 of a removable automatic coupling member 17, the pivot 14 being held in place by an elbow lever 19 pivoted on the rod 5. Two abutments 22, 23 limit the movement of lever 19 in its closed and open positions respectively, and a spring 25 retains the lever in a set position. A lever operating handle 24 may be supplied with a spring loaded bolt 28, Fig. 4 (not shown), which engages the edge 32 of the rod 5 holding the lever 19 in its closed position. When not in use the member 17 may be hooked away on a cross-bar 3. In a modification, Fig. 5 (not shown), the connecting rod 15 is replaced by a rod 36 having two pivots 37 and 38 which may alternately engage the notch 12. Again the rod 15 may be made in two pieces which screw into one another thereby adjusting its length. In a further embodiment, Fig. 6, the coupling may be made up so that the member 17 may be automatically coupled by simple approach of two railway wagons. In this case the rod 15 is extended by an elbow 39 to the end of which is pivoted a rod 40 which bears in an open notch 42 formed at the end of a support 43 mounted on hook 1, the assembly 5, 39, 40 and 43 forming an articulated quadrilateral supporting the member 17 in the position for automatic coupling.
Patent GB-860240-A (GB)
Title: Improvements in or relating to beverages
IPC: A23F3/20
Filed: 1957-06-03
Abstract: 860,240. Tea extracts. UNILEVER Ltd. June 3, 1957 [June 4, 1956], No. 17551/57. Class 129. A process for reducing the tendency of a soluble tea product to produce haziness with hard water comprises treating an aqueous tealeaf extract substantially free from undissolved tea solids with a calcium compound soluble therein and after a sufficient time removing the precipitate formed by the calcium compound with a proportion of the tea solids. As shown, tea leaves are introduced at 12 to a countercurrent extractor 10, hot extractant is introduced at 15 and extracted leaves are removed at 11. The extraction time is such as to produce a concentration of at least 2.5% and usually 3.5 to 5% and the liquid is withdrawn through pipe 16 as " dilute extract" which then passes through a strainer 21 or is centrifuged at about 60‹ C. The tea aroma may be removed, with some of the water, by evaporation and then concentrated. The remaining " de-aromatized extract " containing, e.g. 4 to 6% soluble tea solids, is fed through pipe 29 to vessel 31 to which a calcium salt usually in aqueous solution is added through valve 31<SP>1</SP> where it remains until a precipitate has formed when it is passed on to centrifuge 32. The precipitate is removed at 35 and the clear "de-aromatized extract " flows through pipe 36 into a vacuum concentrator 37 in which liquid is heated in a tubular heater 38 and evaporation takes place in chamber 37<SP>1</SP>. The concentrator may operate at 650 to 720 mm. Hg and 65‹ to 40‹ C. effluent temperature. Alternatively a falling film evaporator may be used and several stages may be provided. The effluent-" concentrated extract " contains 25 to 50% tea solids and flows through pipe 40 to vessel 41 where the concentrated aroma may be added thereto after which it may be spray-dried. The concentration of soluble tea solids may be as high as saturation at the temperature prevailing in the extractor. The amount of calcium compound required depends on the type of tea used but calcium compound to at least about 0.3% by weight of the total tea solids in solution expressed as equivalent calcium. Conveniently the extract is treated with the calcium compound at 40‹ C. or below and the de-creaming process as described in Specification 844,451 may be carried out at the same time. Examples are given using different types of tea. Specification 857,517 also is referred to.
Patent GB-1387810-A (GB)
Title: Freezing point depressant
IPC: C09K5/20
Filed: 1971-05-27
Abstract: 1387810 Fire extinguishants CHUBB FIRE SECURITY Ltd 25 May 1972 [27 May 1971] 17582/71 Heading A5A [Also in Division C4] The invention comprises aqueous solutions containing urea and ammonium chloride and having a freezing point of -16‹C or lower. Such solutions may be used as de-icing or anti-freeze agents or in fire-fighting compositions. In both cases the solution may also contain formamide or methylolformamide. Firefighting compositions may include a foamforming compound e.g. a protein, silicone, perfluorosurfactant, or fluoroprotein, for discharge by carbon dioxide.