baber/WOPTO huggingface dataset:
Patent GB-305224-A (GB)
Title: Improvements in speedometers
IPC: G01P3/495
Filed: 1929-01-31
Abstract: 305,224. Seignol, E. Feb. 2, 1928, [Convention date]. Odometers.- In speedometers employing indicators of the drum type the spindles of the total and trip mileage counters are arranged parallel to the speed indicator spindle. A speed indicator spindle 1 actuated by a flexible member has fixed on it a circular metallic member 2 forming a support on the periphery of which is mounted a permanent circular magnet 3. A drum 5 of aluminium having graduations on its periphery is connected to a pivoted spindle 4 and is subjected to the action of the magnetic field produced by the magnet and to the reaction of a spiral spring. The spindle of the speed indicator actuates an eccentric 12 on the hub of which is freely mounted a pinion 13, which is always in mesh with the interior toothed crown 14 of a plate 15 connected with a pinion 16 constantly in mesh with the pinion 19 mounted loosely on the spindles 10 and 11 of the mileage counters 19<1>. The pinion 13 has fixed on it a pin 17 moving in a radial slot 18 in a bar 18' supported by a frame 9. The number of teeth of the pinion 13 is one less than that of the internal toothed crown 14 of the plate 15 so that each turn of the pinion 13 will advance the plate 15 by one tooth, giving the required reduction of drive for the counters. The frame 9 may be obtained by pressure casting in anti-friction metal finished without machining and may be of such a length that the spindle 1 can be used without bearings other than those provided by the frame itself. The invention can be applied to speedometers other than the magnetic type. Specification 207,654 is referred to.
Patent GB-123979-A (GB)
Title: Heel-building Machines.
Inventor: RYBERG CHARLES OSKAR
IPC: A43D33/00
Filed: 1919-02-11
Abstract: 123,979. Ryberg, C. O. March 8, 1918, [Convention date]. Machinery guards.- In a cutting - press in which a reciprocating plunger 73 engages cutters, a sliding weight 90 is provided on the plunger so that on its descent the weight acts as a warning to fingers which might be beneath.
Patent GB-1487006-A (GB)
Title: Stable liquid solutions of isocyanurate-polyisocyanates containing amide and/or acylurea groups
IPC: C07D251/34
Filed: 1975-01-27
Abstract: 1487006 Solutions of isocyanurate-polyisocyanates BASF AG 27 Jan 1975 [28 Jan 1974] 3388/75 Heading C3R A stable liquid solution of an isocyanuratepolyisocyanate containing amide and/or acylurea groups contains: (A) from 5-40% wt. based on the total weight of solution of an isocyanurate-polyisocyanate with amide and/or acylurea groups, containing from 26-0À25% wt. of amide and/or acylurea groups, from 29- 5% wt. of isocyanurate groups and from 40- 20% wt. of free isocyanate groups, and (B) from 95-60% wt., based on the total weight of the solution, of at least one monomeric liquid diisocyanate and/or polyisocyanate, which is free from isocyanurate amide and acylurea groups. The stable solution may be prepared by modifying at least one monomeric di- and/or poly-isocyanate with at least one C 4 - C 20  aliphatic and/or C 8 -C 20  aromatic dicarboxylic acid, optionally in the presence of at least one aliphatic and/or aromatic monoisocyanate and a tertiary amine catalyst, generally at a temperature of 50-200‹ C., the molar ratio of NCO to COOH groups being from 200 : 1 to 2 : 1, and partially trimerizing and/or polymerizing the resulting di- and/or polyisocyanate(s) containing amide and/or acylurea groups in the presence of a trimerization catalyst generally at temperatures of 50-150‹ C., and after deactivation of the trimerization catalyst, the resulting isocyanurate-polyisocyanate(s) containing amide and/or acylurea groups is diluted with at least one monomeric liquid di- and/or poly-isocyanate which is free from isocyanurate, amide and acylurea groups. Preferred monomeric isocyanates are 2,4- and 2,6-tolylene diisocyanates, 4,4<SP>1</SP>- and 2,4<SP>1</SP>-diphenyl methane - diisocyanates, polyphenylpolymethylene - polyisocyanates and mixtures thereof. The trimerization catalyst is preferably basic and may be deactivated with acids or carboxylic acid halides. The stable solutions can be used in the manufacture of polyurethane surface coatings, adhesives and foams. In the examples stable solutions are prepared as above using adipic acid, o-phthalic acid, sebacic acid or heptadecane-dicarboxylic acid as the dicarboxylic acid; an 80/20 mixture of 2,4- and 2,6- tolylene diisocyanate, hexamethylene diisocyanate or 4,4<SP>1</SP>-diisocyanatodiphenylmethane as the diisocyanate which is modified; 1,4- diazabicyclo(2,2,2)octane as tertiary amine catalyst; pyrrolizidine or 1,3,5-tris(3-dimethylaminopropyl)hexahydrotriazine as trimerization catalyst; benzoyl chloride as catalyst deactivator; and an 80/20 mixture of 2,4- and 2,6-tolylene diisocyanate or polyphenyl-polymethylene polyisocyanate as the monomeric di- or poly-isocyanate used to dilute the isocyanurate-polyisocyanate.
Patent GB-630027-A (GB)
Title: Improvements in machines for cutting vegetables or the like material
IPC: B26D3/22
Filed: 1947-02-05
Abstract: 630,027. Cutting vegetables, &c. NELSON, E., NELSON, H., NELSON, T. B., and NELSON, F. Feb. 5, 1947,. No. 3495. [Class 5(i)] [Also in Group VI] Potatoes &c. from a hopper 11 are sliced by a rotary knife blade 8 sweeping periodically under the outlet 10 of the hopper, the potatoes being temporarily supported during successive knife passes on a plate 14 spaced from the hopper outlet. When a slice is cut off it passes through an opening 35 in the plate 14 and falls on a plate 24. The slice is then swept around the plate 24 by a sweep arm 25 against upwardly projecting blades 27 which cut the slice into bars or chips which fall down a chute 16 into a receptacle. The spacing of the plate 14 from the ion 10 hopper 11 can be adjusted for the desired slice thickness by adjusting by set screw 21 a lever 19 pivoted at 20, the lever carrying a roller 18 which is located in a groove in a collar 17 on the underside 13 of the plate 14. The plate 24 is. perforated for vertical movement on spindles 15 and is supported on compression springs 37 so that it will be yieldingly held up against the lower ends of fingers 26 on the sweep arm 25, which sweeps the slice through a gap in the plate 24 to fall down the chute 16 as above- When the slice is cut into bars or chips, the comb-like teeth 26 of the sweep arm 25 push the slices against a number of parallel blades 27 brought up through the gap in the plate 24 by means of a handle 28, Fig. 4. The blades 27 '  are mounted in a holder 29 pivoted at 30 to a bracket on the machine frame. By pushing the handle 28, Fig. 4, axially, its end 33, Fig. 4, can either engage a socket 37 in the frame thereby locking the blades 27 in the position of Fig. 6, or it can be withdrawn axially to turn the blades round into the position shown in Fig. 5. The end 33 can engage in a socket in the frame.
Patent GB-310995-A (GB)
Title: Improvements in the manufacture of non-splintering glass sheets, plates, panels and the like
IPC: B32B17/10
Filed: 1928-02-04
Abstract: 310,995. Heyl, G. E. Feb. 4, 1928. Compound sheets of glass with or without sheets of cellulose derivative are united by a suitable adhesive and by direct fluid pressure at a suitable temperature. As shown in Fig. 1, the sheets to be united are held in a canvas wrapping c and protected by a fluid-tight bag d closed with a clamp d<1>, and air and solvent are exhausted by suction through a pipe e, which is subsequently closed. The sheets are then heated and pressed by steam admitted at g to the autoclave f. The autoclave is also heated by steam admitted at f<1>. In the case of glass and cellulose acetate sheets and triacetin as solvent, pressure of 35 lbs. per sq. in. above atmosphere for 15 to 25 minutes is stated to be sufficient. The sheets may be protected by flexible diaphragms secured to the top and bottom of the autoclave, the pressure being produced in the contained water by a pump. A sheet of cellulose derivative may be secured alone to a sheet of glass by applying to the outer face of the cellulose sheet, while pressing, a sheet of polished metal &c. which will not adhere thereto. The pressure and temperature are preferably lowered gradually. According to the first Provisional Specification, the edges of the compound sheets may be held in screw-actuated bar clamps while under treatment and a pressure of 40 lbs. to 2¢ tons per square inch is applied. The temperature of the cellulose sheet must not be above 60‹ C. during treatment.
Patent GB-668386-A (GB)
Title: Apparatus for synchronizing a.c. machines
Filed: 1949-02-09
Abstract: 668,386. Control of several A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., and CHOUDBURY, S.U.A. Jan. 30, 1950. [Feb. 9, 1949] No. 3560/49. Addition to 658,965. Class 38 (iii). A method of synchronising a plurality of A.C. machines energized from a polyphase or single phase supply as claimed in the parent Specification, includes additional switching arrangements to synchronise the machines against high torque at standstill. The Figure shows the additional switch 163 which is closed after the closure of the switch 15a in order to produce a high synchronising torque. Specification 643,360 also is referred to.
Patent GB-1237603-A (GB)
Title: Process and device for strengthening felts and other non-woven fabrics
IPC: D04H3/153
Filed: 1969-01-22
Abstract: 1,237,603. Non woven fabrics. VEPA A.G. 22 Jan., 1969 [14 Feb., 1968], No. 3561/69. Addition to 1,189,851. Headings D1L and D1R. In the process according to the parent Specification for bonding a non-woven fabric of thermoplastic fibres by sucking a heated gas and then a cooling gas through the fabric whilst it is supported on a sieve drum during heating and/or cooling, steam or a steam/air mixture is used for heating the fabric, the steam can be produced in the heating chamber by steam injection jets or by an endless blanket which is moistened before it enters the heating chamber. The fabric can be subjected to pressure by an endless belt during heating.
Patent GB-304046-A (GB)
Title: Improvements in supporting brackets for venetian and other lath blinds
IPC: E06B9/323
Filed: 1928-02-04
Abstract: 304,046. Wetterschneider, S. Feb. 4, 1928. Brackets for venetian and lath blinds.-A bracket for a venetian or other lath blind is made by bending a metal blank and comprises a portion a fixed to the window frame and two spaced portions c for supporting the head piece or top bar of the blind. When the bracket is intended to be fixed to the upper part of the window frame, it is provided with an extension l<1>, Fig. 8. Each of the brackets shown in Figs. 2 and 8 may also be split symmetrically so as to form a modified form of bracket consisting of two separate portions. Fig. 9 shows two venetian blinds supported by two side brackets, Fig. 2, and two top brackets, Fig. 8.
Patent GB-112696-A (GB)
Title: Improvements in or relating to Manure-spreading Machines.
Inventor: FORBES JOHN
IPC: A01C3/08
Filed: 1917-03-12
Abstract: 112,696. Forbes, J. March 12, 1917. Harrows.-A manure-spreading machine comprises a frame with three longitudinal members each carrying a series of rearwardly inclined serrated tines 2 formed of spring steel. The front bar 3 of the frame preferably projects beyond the longitudinal members at each side and carries arched scrapers 4 for cleaning the tops of drills. The frame is carried on a front wheel 12 and side wheels 5, the peripheries of the side wheels being provided with cam projections 6 by which a vertical shake is given to the machine during its travel. Projecting studs 6a maintain a grip on the ground while the wheels are lifted by the cams. The axles of the wheels 5 are mounted in cranks 7 on a spring-carried tube 9. A hand-lever 8 mounted on the tube 9 and connected bv a link 10 to a bell-crank lever 11 carrying the front wheel 12 serves to lift and lower the frame on the wheels.
Patent GB-575084-A (GB)
Title: Improvements in the manufacture of glass-sheathed wires
IPC: H01J9/32
Filed: 1944-02-28
Abstract: 575,084. Glass-sheathed wire. GENERAL ELECTRIC CO., Ltd., BREADNER, R. L., and SIMMS, C. H. Feb. 28, 1944, No. 3627. [Class 36] For securing a glass sheath to a length of wire 4 a tubular glass bead 6 threaded on the wire is supported on the conical head of a die 1 through which the wire passes with its lower end resting on a block 5 removably fitted in a cavity 3 of the die. The cavity is evacuated through a nozzle 7 so that as the tube 6 is progressively melted downwards, it collapses evenly on to the wire.
Patent GB-1292542-A (GB)
Title: Improvements relating to the speed control of an electric motor
IPC: H02P7/00
Filed: 1970-01-26
Abstract: 1292542 Control of A.C. motors BROWN BOVERI & CO Ltd 26 Jan 1970 [28 Jan 1969] 3633/70 Heading H2J A squirrel cage motor has a first set of stator windings 21, 23, 25 whose ends are joined to form star connections through diode bridges 31, 33, 35, each associated with one of a group of thyristors 41, 43, 45. The motor has a second stator with windings arranged like the first windings, the stator fields rotating at the same speed and in the same direction. The rectifier groups are operated at equal frequency but with mutual phase displacement whereby the star connections are successively and periodically opened and closed at a rate which differs from the mains frequency. The stator field rotates at the differential frequency to entrain the rotor. Regarding commutation, when thyristor 41 is conductive, for example, the star-connection of winding 21 is established. If the thyristor 43 is now triggered, capacitor 53 discharges so that a quenching current for the thyristor 41 is derived through commutation transformer 71. A choke 61 prolongs the cut-off period of the thyristor 41. By varying the mains frequency, the motor may operate above synchronous speed. Reversal and regenerative action is also provided.
Patent GB-347324-A (GB)
Title: Improvements in or relating to hand operated indicators for displaying variable information
IPC: G09F7/00
Filed: 1930-02-03
Abstract: 347,324. Indicators directly operated by hand for displaying variable information. ESTERL, F. X., 248, Lange Gasse, Augsburg, Germany. Feb. 3, 1930, No. 3657. [Class 118 (i).] A hand-operated indicator for simultaneously displaying a number of geographical or other data belonging to a certain group comprises two relatively turnable discs a, b, the data on the lower disc a being displayed through spaced apertures in the upper disc b, which carries a pointer f regis. tering with the name of the selected group d on the lower disc. Data q for the apertures h, o are arranged radially, while data r for the aperture l are disposed tangentially, the intermediate data s being arranged at an intermediate angle in rows that overlap radially. The outer ring q<1> comprises two sets of data appearing at apertures g, p respectively.
Patent GB-1389371-A (GB)
Title: Removal of sulphur dioxide from gases containing sulphur dioxide and oxygen
IPC: B01D53/14
Filed: 1973-01-24
Abstract: 1389371 Gas separation CONSOLIDATION COAL CO 24 Jan 1973 [27 Nov 1972] 3680/72 Heading C1A Sulphur dioxide is removed from a gas stream containing SO 2  and oxygen by scrubbing with an aqueous solution containing approximately the stoiohiometric amount of an alkali metal (inc. ammonium), hydroxide or carbonate and in addition at least 15% by weight of an alkali metal or ammonium thiosulphate, the pH being maintained at at least 6À3. The preferred reagent is potassium carbonate, alone or mixed with potassium bicarbonate in the presence of potassium thiosulphate. The preferred pH range is from 6À3 to 7À3. The absorbent may be regenerated using the process disclosed in Specification 1,389,372.
Patent GB-420898-A (GB)
Title: Improvements in and relating to artificial teeth
IPC: A61C13/00
Filed: 1933-03-07
Abstract: Alloys, for use as corrosion-resisting coatings for base metal tooth pins, consist of palladium and gold or silver or both.
Patent GB-291831-A (GB)
Title: Improvements in and relating to syphon heads for mineral water bottles, vases and the like
IPC: B67D1/04
Filed: 1927-02-10
Abstract: 291,831. Eugster, O. L. Feb. 10, 1927. Siphon bottles. - Siphon heads for mineralwater bottles are formed of non-metallic plastic materials such as celluloid, casein, &c. moulded under high pressure and temperature and are provided with tin, porcelain, or other hygenic linings. In one construction, Fig. 1, the parts 3, 4, 6 are moulded, the valve seat 2<a> and valve chamber being provided with a tin lining 2. The head is slotted at 3<b> for the valve lever and recessed at 8 for the lever fulcrum, a metal lining 9 being provided. In a modification, the lining 2 extends into the spout 4 and waterway 5 and the screw-threaded ring which connects the skirt @ with the bottle is also of reinforced moulded material. In another construction, Fig. 3, the waterway is lined with porcelain, metal reinforcing sleeves 10, 11 being provided as well as a screw-threaded liner 15. The sleeve 10 is shaped to accommodate the valve lever. In a long lever pattern, the member 10 is provided with lateral ears in which the lever is fulcrumed.
Patent GB-1464651-A (GB)
Title: Method and circuit arrangement for determining the coagulation  time of blood or blood plasma
IPC: G01N33/49
Filed: 1974-01-28
Abstract: 1464651 Measuring coagulation times; voltage measuring KOMBINAT MEDIZIN-UNDLABORTECHNIK VEB 28 Jan 1974 [26 Jan 1973] 03797/74 Headings G1A and G1U The coagulation time of a liquid such as blood or blood plasma, i.e. the time taken for the liquid to coagulate after a reagent is added to it, is measured by producing an electric signal representing an optical, electric or mechanical property of the liquid, monitoring the signal to determine an extreme value when it corresponds to the minimum turbidity of the liquid, and measuring the time interval between the addition of the reagent and the moment when the signal has fallen below the extreme by a predetermined adjustable amount. The property measured may be viscosity, conductivity or turbidity, only the latter being described. Fig. 2 shows an electric signal produced by a turbidity measurement; this is the inverse of the turbidity, and passes through a maximum 9 some time after the addition of reagent at 4. A circuit having a store is supplied with this signal via a diode, so that the stored signal follows the electric signal, but is lower by an amount equal to the drop across the diode; the diode ensures that the stored signal remains at its maximum when the electric signal starts to drop. Thus in Fig. 2 the store is activated at time 5 after the initial fluctuations have died out, and the stored signal levels off at a voltage 11 below the maximum level of the electric signal. A timer is activated when the reagent is added, and is switched off when the electric signal has fallen to the stored value, at point 6. The total time is the coagulation time. In Fig. 4 the turbidity is measured by light source and detector 40, 13. After amplification at 14 the electric signal passes via diode 15 to store 16, thence to transformer 18 and diodes 19. Thus the signal at the + input of differential amplifier 22 is less than the maximum value by the amounts dropped across diodes 15 and 19, and is adjustable by switch 20. The detector signal also passes via amplifier 14 and transformer 20 to the - input of 22. When the + and - inputs become equal, timer 23 is switched off. In an alternative embodiment, Fig. 5, the amplified detector signal passes to the - input of 26, then to filter 28, threshold switch 30, amplifier 32 and relay 34. While the detector signal increases, the relay contact 37 stays closed, and motor 38 adjusts potentiometer 39 so that the + input of 26 follows the detector signal; at the maximum detector signal the relay opens, and the + input of 26 remains at a voltage equal to this maximum signal. The voltage is applied via two diodes 35 to the + input of 27 where it is compared with the detector signal. When the latter has fallen below its maximum by an amount equal to the drop across diodes 35, the inputs to 27 become equal and timer 23 is switched off via filter 29, trigger 31 and amplifier 33.
Patent GB-633997-A (GB)
Title: Improvements in or relating to vibrating devices
IPC: B06B1/16
Filed: 1948-02-10
Abstract: 633,997. Vibratory mechanism. WENANDER, H. S. Feb. 10, 1948, No. 3848. [Class 80 (iv)] In a vibratory device of the conical pendulum type the mass 8 is driven from a shaft portion 3 supported in bearings 10 by a flexible shaft portion 4. An additional member 5 may be provided on this flexible shaft portion co-operating with a surface 6 to counteract the effect of centrifugal force on this shaft. The portion of the flexible shaft between the members 5 and 8 may be made rigid.
Patent GB-650064-A (GB)
Title: Method of and arrangement for preventing the formation of ice in axial-flow compressors
IPC: F02C7/047
Filed: 1948-02-10
Abstract: 650,064. Axial-flow compressors; gas turbine plant. AKT.-GES. BROWN, BOVERI, & CIE. Feb. 10, 1948, No. 3850. Convention date, Oct. 22, 1947. [Classes 110(i) and 110(iii)] The blades of at least the first stage of an axial-flow compressor are de-iced by passing gaseous medium at a sufficiently high temperature over the blades in the form of a film which constantly renews the boundary layer. In a gas turbine plant, part of the exhaust gases from a turbine 3 are passed by way of at least one pipe 8 to guide blades 7, and by way of hollow rotors 10, 11 to rotor blades 9 of a compressor 1. The gases pass through the blades 7, 9 by way of slits connected with longitudinal channels. The gases may be taken from an intermediate stage of the turbine. Alternatively, air from a later stage of the compressor may be used. In the case of a compressor forming part of a steam or gas turbine plant in which the turbine blades are protected by a film of cooling medium, e.g. compressed air, this medium may be used for heating the compressor blades. Specifications 347,374, 524,794 and 531,445 are referred to.
Patent GB-936942-A (GB)
Title: Compatible colour-television apparatus
IPC: F16K47/04
Filed: 1962-02-01
Abstract: 936,942. Colour television. HAZELTINE CORPORATION. Feb. 1, 1962 [Feb. 10, 1961], No. 3883/62. Class 40 (3). In a compatible colour television receiver for use with a colour signal, such as the N.T.S.C. signal, in which a chrominance signal is located in the high-frequency portion of a wide-band luminance signal, the output of the luminance channel 15 is divided by filters 27 and 28 into. a high-frequency portion containing the chrominance signal and a low-frequency portion entirely free of the chrominance signal and the two portions are thereafter combined and applied via the conventional chrominanceluminance combining circuit 17 to the picture reproducer 18, the circuit from the high-pass filter 27 including a stage 30 (a cathode-follower) which is controlled by the " colour-killer " circuit 25 whereby during colour reception stage 30 is cut off so that the undesirable chrominance signal is deleted from the luminance channel and during monochrome reception stage 30 operates and a full bandwidth luminance signal is made available. The gain of stage 30 is made adjustable by resistor 34 whereby a controllable amount of high-frequency accentuation may be introduced. In a modification, Fig. 3 (not shown), the high- and low-pass filters comprise respectively a series and a shunt LC circuit, the inductor of the series circuit having a ferrite core and a control winding connected to the " colour-killer " circuit whereby during colour reception the core may be saturated to detune the LC circuit and prevent the passage of signals.