baber/WOPTO huggingface dataset:
Patent GB-232525-A (GB)
Title: Improvements in and relating to machines for breaking or tearing into lengths hemp fibre and the like
IPC: D01B1/22
Filed: 1924-12-24
Abstract: 232,525. Knox, J. Dec. 24, 1924. Fibres, stapling.-In a machine for breaking or tearing hemp and like fibres into lengths of the kind comprising two groups of rollers, one rotating continuously and the other intermitltently. the latter group is driven by means of a continuously moving endless band or chain. Each group of rollers consists of one larger roller and two smaller rollers pressed against it by adjustable springs. The continuously rotating rollers a, a<1>, Fig. 3, are driven from the main shaft e by gearing f, f<1>, f', f<4>, Figs. 3 and 4, the smaller rollers being driven from the larger by gears j<1>. The shaft of the roller a also carries a sprocket k driving a chain o which passes round adjustable guide sprockets n<2>, m<1>, and a sprocket k<1> loose on the shaft of the larger roller b of the intermittently moving group. A pair of star-wheels l are secured to the shaft, one each side of the sprocket k<1>, and are rotated at intervals by projections q on the chain. The duration of the movement and the lengths into which the fibres can be broken can be adjusted by varying the length of the chain in engagement with the sprocket k<1>. The chain can be moved to the left of the guide sprocket m<1>, which is adjustable in the slot m. The guide sprocket n<2> may also be mounted in the slot n to increase further the wrap of the chain about the sprocket. The star-wheels are locked to present further rotation, as soon as the projections q pass out of engagement, by means of a pivoted lever v operated by an adjustable cam w driven by gearing z, z<1>, z<3>, z<4> from the shaft of the roller a. The feed and delivery aprons r, s are driven by chain gearing from the shafts of the rollers b, a. A feed roller t co-operates with the fee.l apron and guide rollers r<5>, t<1>assist the passage of the material hetween the rollers b, b<1> and over the plate u to the rollers a, a<1>.
Patent GB-244751-A (GB)
Title: Arrangement for neutralising the magnetising effect of end connectors in the windings of electric machines
IPC: H02K3/42
Filed: 1925-12-08
Abstract: 244,751. Rosenberg, E. Dec. 19, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Bearing currents, auxiliary means for preventing; coils and conductors; dampers and short. circuited screens. - Short-circuited rings of highly conducting non-magnetic material are used to neutralize the currents in the end connectors of the conductors in dynamo machines and so prevent eddy currents in the adjoining solid iron parts of the machines, reduce bearing currents and give a definite direction to the forces acting on the end-connectors at moments of short-circuits. The rings may also serve as supports for the end connectors. In the form shown in Fig. 3, the copper rings R are carried by the bolts S which support the strengthening clamps P and the non-conducting supports Z of the winding end connectors W. They may, alternatively, replace the clamps and be of angular or other cross-section. Fig. 6 shows a composite ring consisting of two concentric elements R<2> joined by blocks V drilled for the supporting bolts, the whole being split diametrally and joined by screwed-down parts L. In the construction shown in Fig. 7, the ring R<3> is tied by bands D directly to the end connectors W<3> of the windings. The invention is applicable to stationary or rotating armatures of alternating-current machines and for preventing eddy currents in the shafts and bearings of continuous-current machines.
Patent GB-645851-A (GB)
Title: Improvements in suction device
IPC: B24B13/005
Filed: 1947-11-24
Abstract: 645,851. Load-engaging means. SUBEN, M. Nov. 24, 1947, No. 31092. Convention date, Dec. 14, 1946. [Class 78 (iv)] [Also in Group XXIII] A load-engaging means has a flexible suction member 22 provided with a stem 25 connected to an outer conical member 20 by an adjustable part 28 for applying pressure to the periphery of the flexible member while raising its central portion. The stem is in screw-threaded engagement with a sleeve 23 and the part 28 which is provided with a flange to bear against the member 20. An elastic ring 31 is interposed between the latter and the member 22.
Patent GB-1145477-A (GB)
Title: Process for purifying ethylene glycol
IPC: C07C29/76
Filed: 1966-07-11
Abstract: 1,145,477. Ethylene glycol purification. COLUMBIAN CARBON CO. 11 July, 1966 [30 Aug., 1965], No. 31094/66. Heading C2C. Ethylene glycol having a trace iron content is contacted with a cation exchange resin in the acid form to reduce the iron content and give a product having substantially no increased acidity. The treatment is preferably applied to substantially anhydrous ethylene glycol containing up to 2 p.p.m. of iron and up to 100 p.p.m. titratable acids, calculated as acetic acid, and gives products containing, e.g. 0À15 p.p.m. of iron and may reduce the acidity to 50 p.p.m. Suitable resins are those of the sulphonated phenolformaldehyde, sulphonated polystyrene and sulphonated polystyrene carboxylic acid types. The resin is preferably dried before use by contact with anhydrous ethylene glycol.
Patent GB-1048571-A (GB)
Title: A machine tool for making slots, keyways and the like
IPC: B23C3/28
Filed: 1963-08-07
Abstract: 1,048,571. Milling; grinding. CARL HURTH MASCHINEN - UND ZAHNRADFABRIK. Aug. 7, 1963 [Oct. 19, 1962], No. 31113/63. Headings B3D and B3K. [Also in Division F2] A machine tool comprises a crank mechanism 22 for feeding a milling or grinding tool 16 longitudinally of a workpiece to cut a key-way &c., and a controllable steplessly.variable drive for modifying the natural quasi-sinusoidal velocity of the feed resulting from the crank mechanism. The work to be slotted is mounted on a table 12 adjusted vertically by a screw 13 and the cutter 16 is mounted in an axially-adjustable spindle sleeve 17 on a slide 15 reciprocated by the adjustable crank 20. The crank is rotated by a motor 38 and infinitely-variable gearing 30, 31 controlled by a cam 36 and a lever 35 to cause the speed of cutting of the slot to be constant over the major part of its length. The tool is fed axially at the ends of the strokes. In a modification, the latter feed is driven by a bevel gear on the shaft 18 and change-speed gearing is interposed between the gearing 30, 31 and the worm 24. The axial feed is imposed through a ratchet wheel which can be over-driven by an electric motor. In a further modification, the speed is varied by an electric motor.
Patent GB-603992-A (GB)
Title: Improvements in heating stoves for burning solid fuel
IPC: F24B13/02
Filed: 1945-11-20
Abstract: 603,992. Closed stoves. JONES, C. E. ARENGO-. Nov..20, 1945, No. 31170. [Class 126] A solid fuel stove has its walls formed by a number of separate panels held together by metal clips, each having inner surfaces which engage the outer surfaces of two adjacent panels, the engaging surfaces of the panels or the clips or both being tapered longitudinally of the meeting line of the panels, so that longitudinal movement of the clips draws together the meeting edges of the panels. Panels 6, 7, &c. (Fig. 2) are formed with ribs 11 (Fig 4) having wedge shaped projections 12 engaged by clips 10 formed with lugs 13. Within the stove a partition formed by firebricks 32 supported between ribs 34 on the side panels forms a front fuel hopper with stepped shelves 37 and 38 feeding a horizontally oscillatable grate 27, and a rear flue leading to the connection 33. The firebricks 32 may be replaced by a water boiler. The fire door 15, held in the closed position by a spring wire frame 21, has an adjustable air inlet 20 and a sliding damper 39 normally closes the gap above the partition.
Patent GB-796572-A (GB)
Title: Improved process for the manufacture of n-substituted amides
Inventor: FIELDEN RICHARD JAMES
IPC: C07C233/00
Filed: 1955-11-01
Abstract: N-substituted formamides are made by reacting olefines with hydrogen cyanide in the presence of an acid-reacting catalyst and 10-45 per cent of water calculated on the combined weight of water and catalyst.  The N-substituent may be alkyl, cycloalkyl or aralkyl. The process is particularly suitable for making N-(tertiary alkyl) formamides using 1 1/2 mol. of sulphuric acid per mol. of olefine or HCN (whichever is the lesser), and 20-35 per cent of water calculated as above.  The amides may be isolated or may be converted into the corresponding amines by alkaline or acid hydrolysis.  Examples show the preparation of formamides N-substituted as follows: tertoctyl from di-isobutene, 1 : 1-dimethylbutyl from 2 - methyl - pentene - 1, 1 : 1 : 3 - trimethylhexyl from 2 : 4 - dimethyl - heptene-, 1-methylcyclohexyl from 1-methylcyclohexene, cyclohexyl from cyclohexene and dodecyl from a propylene tetramer.  All these can be hydrolysed to the corresponding amines.  The hydrogen cyanide can be made in situ from a cyanide and sulphuric acid.  Other suitable olefines are isobutene, trimethylethylene, 2-methyl-butene-1, 2 : 4 : 4-trimethylpentene-1 or -2 and a -methylstyrene.  The catalyst may also be hydrochloric, phosphoric or benzenesulphonic acid.
Patent GB-867539-A (GB)
Title: Film materials comprising an antistatic layer
IPC: G03C1/89
Filed: 1958-09-30
Abstract: Film-forming water-soluble polyureas, polyamides or polyurethanes containing neutralized acid groups may be used as anti-static coatings on film materials (see Group VIII).  The compounds may be used as their lithium, sodium, potassium, ammonium or amine salts. They may be prepared by reacting an organic diamine with (a) a diisocyanate or with a phenyl carbamic ester of a diamino acid to give a polyurea; (b) a diester of chloroformic acid and a dihydric alcohol or phenol to give a polyurethane or (c) a dicarboxylic acid dihalogenide to give a polyamide.  The Specification includes long lists of suitable starting materials.  In Examples (1) toluylene diisocyanate in dimethyl formamide is reacted with sodium-4, 41-diamino-stilbene-2, 21-disulphonate to give a polyurea of formula: <FORM:0867539/IV (a)/1> (2) adipic acid dichloride is reacted with sodium-4, 41-diamino-stilbene-2, 21-disulphonate to give a polyamide of formula:  <FORM:0867539/IV (a)/2> and (3) lysine hydrochloride is reacted with 1, 4-butanedioldichloroformic acid ester to give a polyurethane of formula: <FORM:0867539/IV (a)/3>
Patent GB-1223236-A (GB)
Title: Crystal growing
IPC: C30B9/00
Filed: 1969-06-20
Abstract: 1,223,236. Ferrites. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 20 June, 1969 [25 June, 1968], No. 31247/69. Heading C1A. [Also in Divisions B1 and F4] Monocrystals, e.g. of Y 3 Fe 5 O 12  and PbFe 12 O 19 , are grown from an auxiliary melt mass in a device comprising a closed vessel 3 having an S-shaped pressure-relieving ventilation pipe 5, the vessel being rotatably arranged in a holder in an oven so as to be rotatable from outside. The vessel 3 may be a cylinder of Pt, of which the end caps 2 and 9 are welded in. The melt mass exemplified comprises PbO, PbF 2 , B 2 O 3 , CaO and Fe 2 O 3 . The malt is allowed to cool in the vessel (in one embodiment whilst there is a monocrystal of Y 3 Fe 5 O 12  secured to cap 9) and the vessel is inverted after the crystals have formed to free them from the melt.
Patent GB-224741-A (GB)
Title: Open-air dry mash feeder for poultry
IPC: A01K39/012
Filed: 1923-12-13
Abstract: 224,741. Rhymes, H. G. Dec. 13, 1923. Feeding-appliances for animals.-A poultry feeder comprises a hopper b delivering food to a trough c open at both sides to the birds. Each opening of the trough is covered by a wire grid d hinged to a part. e hinged to the hopper, the grid d being of such size that only chicks may reach the food. To adapt either side for hens also, the parts d, e are clipped back as shown in Fig. 2 and a layer hinged grid g is lowered, the flap f immediately over the grid g being raised out of the way. A channel k conducts outside the hopper any water which may leak through the apex.
Patent GB-914819-A (GB)
Title: Improved apparatus for detecting distance or tension between points on a running strip
Inventor: CRAXTON ROBERT TREVOR
IPC: G01L5/10
Filed: 1960-09-12
Abstract: 914,819. Measuring electrically. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 18, 1961 [Sept. 12, 1960], No. 31338/60. Class 40 (1). Apparatus for producing an electric signal related to a distance between successive markings 2, 21 on a moving strip 1 (e.g. of paper) comprises two pick-ups 3, 4 (e.g. light-sensitive cells) each producing an output when influenced by a respective one of the markings, means 11 for obtaining an electric signal dependent upon the speed of the strip, means 15 for integrating the signal, electronic switches 12, 16 arranged in the input and output circuits of the integrator and controlled respectively by both pick-up outputs and by the output of the second pick-up, and means for resetting the integrator in response to the output from the second pick-up. The outputs from 3, 4 may be differentiated to produce short pulses corresponding to the leading edges of marks 2, 2<SP>1</SP>. A D.C. signal dependent on the strip speed is obtained from tachogenerator 11 (or a pulse generator) and is applied to integrator 15 when switch 12 is closed by marking 2 passing pick-up 3. The switch is opened when marking 2<SP>1</SP> passes pick-up 4, and simultaneously switch 16 is closed to pass the integrated signal to comparator 17 where it is compared with a reference voltage. Variations in distance 2, 2<SP>1</SP> are indicated at 18, and a manual or automatic correction may be made. The output from 4 is also applied through time delay unit 19 to reset integrator 15, or the negative pulse obtained by differentiating the trailing edge of the output pulse from 4 may be used for this purpose.
Patent GB-189140-A (GB)
Title: Improved apparatus for giving visual indication on roads
IPC: E01F9/07
Filed: 1922-11-16
Abstract: 189,140. Downey, R. F. Nov. 17, 1921, [Convention date]. Buoy and like lamps.-A lamp casing for use at the junctions of roads comprises a conical dome 4" provided with spokes 4 mounted on a head 5, which is slidable in a housing 1 sunk into a well in the road. The head 5, formed with a hub 8 adapted to slide within a sleeve 8<1>, supports a lamp 11 in a transparent globe 12. A spring 10 normally holds the dome above the surface of the road, but when the dome is accidentally struck by a vehicle it is moved into the position shown dotted. The feet 4' of the spokes are normally located within radial recesses 3 in the flange 2, and are prevented from rotating by dowel pins 7<1>. Rotation of the head is prevented by a bolt 6 engaging a key-way 6'. The head and housing may be cylindrical or polygonal.
Patent GB-356012-A (GB)
Title: Improvements relating to the manufacture of cellulose esters
IPC: C08B3/24
Filed: 1930-10-20
Abstract: Carboxylates.-In the hydrolysis of cellulose esters, an alcohol, e.g. methyl or ethyl, is added to the esterification mixture in excess of the amount theoretically necessary to esterify the residual organic acid, the ester being maintained in solution by a suitable organic liquid e.g. ethylene chloride, chloroform or tetrachlorethane.  The residual acid is thereby readily separated.  The amount of acid may be reduced by esterifying in presence of a solvent such as ethylene chloride, as described in Specification 351,118; or the solvent may be added after the esterification step.  In an example, to 100 lbs. cotton linters is added 100 lbs. glacial acetic acid and 700 lbs. of ethylene chloride, the mixture being heated to 150 DEG  F. for about 4 hours and then cooled to 65 DEG  F.; 300 lbs. of 85 per cent acetic anhydride and 400 ccs. of sulphuric acid and 1350 ccs. of commercial liquid phosphoric acid are then added and the mixture is allowed to acetylate at a temperature of 45-100 DEG  F.  When a homogeneous, clear dope is obtained, 350 lbs. of ethyl alcohol is slowly added while stirring.  The mixture is maintained at 100 DEG  F. until acetone-solubility is obtained, usually about one week, after which it is poured through a header into boiling water and the vapours so produced are passed through a condenser.  The condensate which consists of ethylene chloride, ethyl acetate, ethyl alcohol and water, is separated by fractional distillation. The proportions of acetic acid, ethylene chloride and acetic anhydride may be those given in Specification 351,118.  The invention is applicable to cellulose propionate or other acylates.
Patent GB-633212-A (GB)
Title: Motor control systems
IPC: B60L11/18
Filed: 1947-11-27
Abstract: 633,212. Control of D.C. motors. ENGLISH ELECTRIC CO., Ltd., and CALDBECK, C. J. Nov. 27,1947, No. 31476. [Class 38 (iii)] Apparatus for controlling the direct-current driving motor of an electrically-propelled vehicle comprises a power controller for connecting the motor to an external supply, an auxiliary source of supply on the vehicle, a reversing switch for the motor having ahead and reverse positions on external supply and ahead and reverse positions on auxiliary supply, interlock'means for automatically disconnecting the power controller from the external supply when the reversing switch is moved to either of the auxiliary supply positions, and contacts on the power controller effective to connect the motor to the auxiliary supply when the controller is moved from the off position with the reversing switch in either of the auxiliary supply positions. A series traction motor 1 is adapted to be supplied from trolleys 6 and 7 or from batteries 12 and 13 which are carried on the vehicle. A reversing switch 2, which is selectively operable to ahead and reverse trolley positions, and like battery positions, is provided. When the switch 2 is. in either of the trolley positions, movement of a pedal-operated controller 8 firstly effects, through contacts 2a of the reversing switch, energization of the operating coils of line contactors 4 and 5 and then the successive energization of those of resistance-step contactors 9, 10, and 11. A switch 14 connects the batteries 12 and 13 in parallel for charging and for vehicle lighting and in series for operating the motor. To operate the motor from the batteries, the reversing switch is moved to the desired battery-position so isolating the controller 8 from the line, and rendering it ineffective to operate contactors 4, 5, 9, 10, and 11, by opening contacts 2a. Movement of the controller from the " off " position closes contacts 8a and 8b, and, with the switch 14 in the series-position, contacts 14a are closed, so that the operating-coil 15a of contactor 15 is connected across the batteries. The motor is then connected to the batteries through contactor 15 and contacts 2b and 2c of the reversing switch. The operating-lever of the reversing switch is removable when the switch is in the " off " or in one of the batterypositions only, and is used for operating the switch 14, so that operation of the seriesparallel switch is prevented if the reversing switch is in either of the external-supply positions.
Patent GB-1244424-A (GB)
Title: Improvements in or relating to aqueous epoxy emulsions
Inventor: GILLER ARNOLD
IPC: C08J3/03
Filed: 1969-06-23
Abstract: 1,244,424. Cement compositions. CHEMISCHE WERKE ALBERT. 23 June, 1969, No. 31545/69. Heading C1H. [Also in Division C3] Cement compositions contain aqueous epoxy resin emulsions in which the emulsifier is an alkoxylated colophony. The emulsion is mixed with ethylene diamine (curing agent), cement, fine sand (up to 0À5 mm.), coarse sand (0À5- 1À25 mm.) and water.
Patent GB-1063304-A (GB)
Title: Improvements relating to apparatus for measuring loss in solid dielectric material
Inventor: BAKER WILLIAM PERCIVAL
IPC: G01R27/26
Filed: 1963-08-09
Abstract: 1,063,304. Dielectric loss measurement. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 6. 1964 [Aug. 9. 1963]. No.31562/63. Heading G1U. A dielectric loss measuring apparatus comprises a resonant circuit including an inductance L and a first adjustable tuning capacitance C1, across which is connected a further capacitor x in which the test specimen dielectric is inserted. An arrangement including the meter M and a diode D2 compares the peak voltage developed across the inductance with the supply voltage which is developed across the capacitor C4. A large fixed capacitor C2 is in series with the first adjustable capacitor, and the supply voltage is applied across this fixed capacitor through a second adjustable capacitor C3. The resonant circuit is first tuned by adjusting C1 without the specimen, the specimen is then included and the circuit is retuned. The change in adjustment of the second capacitor C3 to balance the voltage across the inductance with that across C4 is a measure of the dielectric loss of the specimen.
Patent GB-217514-A (GB)
Title: Improvements in or relating to driving means for jigger conveyors or shoots or the like
IPC: B65G27/00
Filed: 1923-12-17
Abstract: 217,514. Kubitza, F., and Stephan, Fr÷lich, & Kl³pfel. Dec. 17, 1923. Jigging conveyers.- Means are provided whereby the crankshaft of the driving gear may be rotated either with a constant or varying angular velocity and the varying velocity can be regulated. The crankshaft g is mounted eccentrically in a bush h which is eccentrically mounted in a bush b. A gear a rotates freely on the bush b and is driven bv an electric motor at a constant speed. A pin e mounted in the walls c, d of the gear a drives a tappet f keyed to the shaft g.
Patent GB-1342753-A (GB)
Title: Dihydronaphthalene derivatives and higher or lower bicyclo homologues thereof and the preparation thereof
IPC: C07D295/185
Filed: 1971-07-06
Abstract: 1342753 Diazacyclic compounds RICHARDSON-MERRELL SpA 6 July 1971 [20 July 1970] 31754/71 Heading C2C Novel diazacyclic compounds of the general formula wherein each of R and R 1  is a hydrogen or halogen atom or a trifluoromethyl, C 1-6  alkyl, phenyl, pyridyl, C 1-6  alkoxy, hydroxy, nitro, amino, mono- or di-C 1-6  alkylamino, C 2-7  alkanoylamino, C 2-7  alkoxycarbonyl, carboxy, carbamoyl, sulphamoyl or nitrile group or R and R 1 , when at adjacent positions, may together form a methylenedioxy group, R 2  is a hydrogen atom or a C 1-6  alkyl, phenyl, pyridyl, C 2-7  alkoxycarbonyl, carboxy, carbamoyl or sulphamoyl group, R 3  is a hydrogen atom or a C 1-6  alkyl, phenyl (optionally substituted by halogen atoms or C 1-6  alkyl or C 1-6  alkoxy groups), picolyl, benzyl (optionally substituted by halogen atoms or C 1-6  alkyl or C 1-6  alkoxy groups), alkanoyl, aroyl, cyanoethyl, C 2-7  alkoxycarbonyl, formyl, carboxy, carbethoxyethyl, N - monoalkyl-, N,N - dialkyl. or N- aryl - carbamoylmethyl, N - monoalkyl or N,N - dialkyl - carbamoylethyl, C 3-6  cycloalkyl or methyl-C 3-6  cycloalkyl group, n is 1, 2 or 3, each of A and B is a -Cmq-, -Cmq-Cwx- or -Cmq-Cwx-Cyzgroup, in which each of m, q, w, x, y and z is a hydrogen or halogen atom or a trifluoromethyl, C 1-6  alkyl, C 1-6  alkoxycarbonyl, carboxy, carbamoyl, sulphamoyl, phenyl, pyridyl, benzyl or picolyl group, or m and q, w and x or y and z together form an oxygen atom, and j and k are each 0 or 1, and pharmaceutically acceptable, non-toxic acid-addition salts thereof are prepared (a) by reaction of a ketone and a heterocyclic compound of the respective general formulµ and (b) when R 3  is an alkyl or acyl group, by alkylation or acylation of the corresponding compound in which R 3  is a hydrogen atom; followed optionally by salifaction of the product. Pharmaceutical compositions having analgesic, anti-inflammatory, antipyretic, sedative, myorelaxant, anti-hypertensive, diuretic and chloretic activity comprise, as active ingredient, a diazacyclic compound of the first general formula above or a pharmaceutically acceptable, acid-addition salt thereof, together with a carrier.