baber/WOPTO huggingface dataset:
Patent GB-519008-A (GB)
Title: Improvements in drawing apparatus for fibres intended for spinning
IPC: D01H5/26
Filed: 1938-08-30
Abstract: 519,008. High draft apparatus. PROSS, B., and BALDUS, F. Aug. 30, 1938, No. 7014/39. Divided out of 5573/38. [Class 120 (ii)] In high draft apparatus for spinning-frames upper rollers 8, 9 co-operating with a belt are mounted in a bracket 10, the former, which is shaped as shown in Fig. 3 to serve as a guide for the belt, being freely controlled by a rib 16, and the latter carried in a slot 12. A guide rod 5, which is provided with flanges to confine the belt, is carried in a slot 11 below the slot 12. The belt may be arranged as shown in Fig. 1 so that the main draft is effected between the rear and middle rollers 2, and a secondary draft between the middle and front rollers 19, between which a guide bar 20 is arranged. The surface of the roller 9 may be roughened.
Patent GB-213413-A (GB)
Title: Improvements relating to brakes for the steering or swivelling wheels of vehicles
IPC: B60T11/04
Filed: 1923-03-12
Abstract: 213,413. Fornaca, G. March 12, 1923. Brakes, arrangement and disposition of.-In brake mechanism for the steering wheels of vehicles of the kind comprising a member slidable in the axis of the knuckle pin and having one end engaged by a tappet lever connected to the hand or foot lever and the other end bearing upon a member connected to the actuating means for the brake shoes or the like, this member is arranged to slide in guides secured to a part which turns with the knuckle pin and the tappet lever is rendered adjustable as to its angular position. The pin 8 provided with bearings in the fixed axle 18 has secured to it a crank 9 connected by a rod 10 to the hand or foot lever and a tappet lever 7 engaging one end of a rod 6 slidable within the knuckle pin 2. The other end of the rod 6 engages a block 11 slidable in a guide member 12 mounted on a disc 13 secured to the stub axle 3. A pair of toggle links 15, 15<1> are connected to the block 11 and to the brake shoes 16, 16<1>. The tappet lever 7 is keyed to the pin 8 by means of fine co-acting teeth formed on the periphery of the pin and within the boss of the lever whereby the angular position of the lever can be adjusted to compensate for wear.
Patent GB-772524-A (GB)
Title: Improvements in or relating to probe units for electronic measuring devices
IPC: G01R19/00
Filed: 1955-03-10
Abstract: 772,524. Electronic probe units. LEMOUZY, J. A. March 10, 1955 [March 10, 1954], No. 7133/55. Class 37. A probe unit for an electronic measuring device comprises a thermionic valve connected as a cathode follower, two input terminals B1, B2, first and second variable capacitances C1 and C2 connected in series across the terminals, one of the terminals B2 being earthed and the grid G of the valve being connected to the junction of the first and second capacitances C1 and C2, the output from the valve being connected via a detector to output terminals B3 and B4 for connection to said device, the arrangement being such that the unit has an input capacity of less than 2 pico farads. In such a probe unit it is stated to be possible, because of a very high input impedance, to use a condenser attenuator of which the maximum capacity does not exceed one pico farad so that direct measurements of voltages between 1 and 2,000 having a frequency of from 10 cycles per second up to several hundred megacycles per second may be made.
Patent GB-1058409-A (GB)
Title: Method of producing duplex internally finned tube unit
IPC: B21C37/20
Filed: 1965-02-18
Abstract: 1,058,409. Making internally finned tubes. CALUMET & HECLA Inc. Feb. 18, 1965 [April 23, 1964], No. 7135/65. Heading B3A. In a method of producing an internally finned tube unit, a first metal tube is extruded to provide internal fins, drawn to reduce its external diameter and telescoped within a second metal tube. The telescoped tubes are then drawn to bring them in tight contact with one another. The first tube may be age hardened after extrusion and preferably has a higher yield strength than the outer tube. The tubes may be of aluminium alloy and copper respectively, but the outer tube may also be of brass, coppernickel alloy or the like.
Patent GB-162873-A (GB)
Title: Improvements in and relating to crude oil refining processes and apparatus
IPC: C10G7/00
Filed: 1920-03-09
Abstract: 162,873. Evans, J. G. P. March 9, 1920. Evaporators and condensers in structural combination.-In refining crude oil, the upper layers of oil in a conical still 10 are heated by an electric heater 19 or by other means, and the vapours evolved are condensed in the space between the still and an outer insulated jacket 13. The condensate is collected by a series of channels 16 having drip flanges 17 above them, so as to obtain fractions of different boiling points. The crude oil is continuously supplied by a pipe 18 at the base of the still, and the residuum is withdrawn by a pipe 22 having a small opening at the top to prevent siphoning. A temperature of 560‹ may be maintained at the top of the still, and the oil being supplied at an ordinary temperature of 60‹ F., a temperature of about 310‹ F. is obtained at the line 24 which passes through the centre of gravity of the still.
Patent GB-646970-A (GB)
Title: Improvements in or relating to resinous semi-conducting materials including conductive carbon
IPC: H01B1/24
Filed: 1948-03-09
Abstract: A semi-conducting composition is made by milling together a linseed oil modified alkyd resin with carbon black.  From 45-60 per cent of linseed oil or linseed oil acid (e.g. oleic, linoleic or linolenic) are reacted with 30-40 per cent of phthalic anhydride and 10-15 per cent glycerol to produce an oil modified alkyd resin, which is dissolved in at least 1 1/2 times its own weight of a solvent, e.g. toluene, xylene or a petroleum hydrocarbon, and is ball-milled with 8-25 per cent of a carbon black having chains of carbon particles when viewed with a magnification of over 10,000, a suitable form of carbon black being acetylene black.  The ball-milling is stopped when the viscosity and resistivity of the mixture attain relatively constant values.  The composition may be coated on to glass fibre or asbestos tape to form a fibrous covering which may be used to surround an insulated conductor in the slot portion of a dynamo-electric machine (see Group XXXV).  Specification 576,631 is referred to.
Patent GB-1527590-A (GB)
Title: Systems for indicating the variation in radioactivity within a patient's cardiac cycle from a tracer substance in the blood
IPC: A61B5/352
Filed: 1976-02-24
Abstract: 1527590 Cardiac measurement by radioactivity OHIO-NUCLEAR Inc 24 Feb 1976 [6 Nov 1975] 07250/76 Heading G1A A system for indicating the variation of radioactivity within a patient's cardiac cycle has timing means 28 for determining a plurality of corresponding sampling intervals in each of a plurality of cardiac cycles, means 26 for counting the number of radiations from a selected heart blood pool location in each interval and an indicator of the cumulative amount of radiation counted in the corresponding sample intervals of the plurality of cardiac cycles. Analyser 20 produces digital output pulses for gamma rays (i.e. when its input voltages are in a certain range). These are counted by counter 26, cleared at the beginning of each interval by generator 28. Input channel counter 36 is reset by the ECG signal from detector 10 and clocked by generator 28. During each sampling interval memory 34 stores cumulative data and its corresponding memory channel is switched by counter 36. This data is automatically added by adder 32 to the count already stored after which control of the memory address is switched from counter 36 to the video display system, so that time base generator 42 controls the read-out of memory 34. Each channel's contents appear at the output simultaneously with each line SYNC pulse. The output of comparator 48 causes a bar to be drawn on the corresponding line of the raster of CRT 40 of length proportional to the number stored in the corresponding channel of memory 34. CRT 40 is orientated so that this length is vertical. For a single pass mode of operation, opening mode switch 38 prevents the initiation of counter 36 by the patients R-wave and it is only reset by the action of a switch, and is automatically terminated after counting a certain number of channels. Generator 52 generates a digital graticule signal gated by ECLUSIVE OR gate 54 to CRT 40 such that the grid pattern is not obscured by the data image. Rate control 28a varies the sampling intervals over a 4:1 range. Counter 36 can be adjusted to switch in ¢ or  of the number of memory channels. Channel number selector 56 can be used to multiply the sampling interval by 2 or 4 and to correct comparator 48 to interrogate each memory channel for 2 or 4 lines to lower the resolution of the display.
Patent GB-1485604-A (GB)
Title: Battery water filling device
IPC: H01M50/673
Filed: 1976-02-24
Abstract: 1485604 Portable containers; container closures; tapping containers C A HERBST 24 Feb 1976 [24 Feb 1975] 07321/76 Headings B8T and B8D A container 10 for topping-up electrical storage batteries has at least one, and preferably three, valved liquid dispensing spouts and an annular seal 44 surrounding and sealed to the, or each, spout, the annular seals being for preventing the passage of air between the, or each, spout and the rim of a battery cell. Each spout has a plastics plunger 15 attached to the container by a plastics retaining nut 13 and is biased into an extended position relative to the nut 13 by a spring 28 acting between a flange 30 on the plunger 15 and a spring seat 31 on the nut 13. A liquid discharge duct 21 and an air duct 27 extend through the plunger 15 which has a groove 16 for receiving an 0-ring seal which seats against a valve seat 17 on the nut 13 when the plunger is extended. The container 10 is preferably of plastics material and is preferably closed, apart from the spouts. The arrangement of the three spouts permits three cells of a battery to be topped-up simultaneously. As the liquid level in each cell reaches the lower end 22 of the respective spout there is a build-up of pressure in the air space above the liquid in each cell due to the fact that the annular seals 44 prevent the escape of air from the cells to the atmosphere. The build-up of pressure stops the liquid flow from the container 10 to each cell in turn thereby preventing overfilling of the first cell to be topped-up as the other cells continue to be filled.
Patent GB-691227-A (GB)
Title: Preparation of silver halide dispersions
IPC: G03C1/053
Filed: 1951-03-30
Abstract: Terpolymers for use as peptizers for silver halide emulsions are prepared by polymerization of a mixture of acrylic acid, acrylamide, and acrylonitrile or methyl vinyl ketone.  In examples, 25 parts by weight of acrylamide, 10 to 17.5 parts of acrylonitrile, and 1 to 5 parts of acrylic acid are refluxed with water, ethyl alcohol, and hydrogen peroxide, and the resulting mixture is then re-heated with hydrogen peroxide, whereafter it is acidified with nitric acid and precipitated in methyl alcohol.  In a further example, 24 parts of acrylamide, 2.4 parts of acrylic acid, and 2 to 5 parts of methyl vinyl ketone are refluxed with water, ethyl alcohol, and hydrogen peroxide, the resulting mixture being acidified with nitric acid and precipitated in methyl alcohol.
Patent GB-139826-A (GB)
Title: Improvements in or relating to self-propelled ploughs and the like
IPC: A01B63/30
Filed: 1917-05-24
Abstract: 139,826. Burg, M., and Stock Notorpflug Akt.-Ges. May 24, 1917. Winding and paying-out apparatus on portable engines.-Relates to an implement applicable as a motor-plough and also as a traction engine. According to the invention the driven shaft 21 which operates through a shaft 24 the gearing 23 for raising and lowering the plough frame on the rear wheel 16 as shown in Fig. 3, drives a capstan 20 or an ordinary power pulley when the implement is used as a traction engine as shown in Fig. 1.
Patent GB-1361346-A (GB)
Title: Fluorinated dioxoles and their preparation
IPC: C08F24/00
Filed: 1972-02-18
Abstract: 1361346 Fluorinated dioxoles E I DU PONT DE NEMOURS & CO 18 Feb 1972 [24 Feb 1971] 7638/72 Heading C2C [Also in Division C3]  The invention comprises compounds of the formula in which R 1  and R 2  are perhalo-hydrocarbon groups of up to 6C containing at least one fluorine atom; and their preparation by dehalogenating a compound in which R 3  and R 4  are halogen other than fluorine, by contact with magnesium (or, where R 3  and R 4  are Br, by contact with zinc) in an organic solvent. Examples prepare perfluoro- 2,2-dimethyl-1,3-dioxole. Perfluoro - 2,2 - dimethyl - 4,5 - dibromo - 1,3- dioxolane is prepared by reaction of Br 2  with a mixture of perfluoro-2,2-dimethyl-1,3-dioxole and perfluoro - 2,2 - dimethyl - 4,5 - dichloro- 1,3-dioxolane. The compounds of the invention may be polymerized (see Division C3).
Patent GB-526185-A (GB)
Title: Improvements in and relating to centrifugal electric switches of the mercury or other conducting liquid type
IPC: H01H29/26
Filed: 1939-03-09
Abstract: 526,185. Mercury switches. BRITISH THOMSON-HOUSTON CO., Ltd. March 9, 1939, No. 7695. Convention date, March 9, 1938. [Class 38 (v)] A centrifugal switch comprises a member, rotatable about a vertical axis, which carries a mercury tube switch the angle of inclination of which changes in response to centrifugal forces during rotation. Two spring strips 3 (not shown), 4 mounted on a base 2 carried by a rotatable shaft 1 carry a mercury tube switch 11. When stationary, mercury 17 bridges two contacts, one of which is connected through a spring strip 3 and stud 7 to the shaft 1, and the other is connected through strip 4 and member 8 to a strip 10. Upon rotation the strips 3, 4 bend and the mercury switch tilts slowly until a speed is reached at which instability produced by movement of the mercury 17 causes the switch to move over and open with a snap action, the movement being limited by a stop 14 on a strip 13 engaging the member 8. Due to the changed position of the mercury 17, the switch closes with a snap at a lower speed than that at which it opens. Modifications are described in which the snap action is reinforced by slightly twisting the strips 3, 4, or by the provision of an outwardly pressed boss on a single resilient carrying strip, or by mounting the switch on a pivoted strut held up by a tension strip connected to member 8 and which form one lever of a dead centre spring toggle. In a further modification Fig. 6, the mercury switch 11 is pivoted to a member 30 the snap movement being caused solely by the movement of the mercury, screw stops 31, 32 allowing setting of the switch for actuation at different increasing and different speeds respectively.
Patent GB-526192-A (GB)
Title: Improvements in or relating to hair-curling devices
IPC: A45D2/42
Filed: 1939-03-09
Abstract: 526,192. Hair-curlers. ROLLOCURL CORPORATION. March 9, 1939, No. 7719. Convention date, March 22, 1938. [Class 131] In a hair curler wherein the hair, after being clamped by a spring-pressed pivoted clip 13 and wound on a tube 12, is transferred to a hairpin 23, one limb 21 of the hairpin is introduced through an aperture 20 into an axial recess 18 in the tube 12 of such a length that the end 23 of the hairpin is exposed for manipulation, the cap 19 being shaped so as to spread the limbs 21, 22. Comb teeth 11 may be provided on an extension of the curler. Fig. 8 shows a metal tubular curler 25 attached to the handle 29 of a comb which supports a resilient pin 31 serving to clip the hair against the tube, the hairpin being inserted through an end aperture 27.
Patent GB-126458-A (GB)
Title: Work Holding Spindle, Devide and Control Mechanism for Generating Gears or Cutters on Grinding Machines.
Inventor: TRY WALTER HENRY
IPC: B23F23/08
Filed: 1918-05-09
Abstract: 126,458. Try, W. H. May 9, 1918. Driving-devices; work-holders.-Consists of a work spindle and dividing arrangement for use in generating the teeth of gear-wheels and cutters in grinding and other machines. The gear-wheel or cutter is secured on a spindle 1 that carries a plate 2 revoluble upon it. Secured on the boss of the plate is an arm 3 provided with a pin 4, or with a key 4<a>, to engage holes or slots in a divided disk 5, that is loosely mounted on the spindle but has secured to it an arm 6 connected to an arm 7 fixed to the spindle. The arms 6, 7 are so connected together as to allow of angular adjustment of the spindle and work in relation to the dividing-disk, by means of a screw and nut 9, or by a worm 10 and worm-segment 11. The arms may be locked together by a screw 12. The spindle is mounted in swivel bearings in a slide, the movement of which imparts motion to the disk 2 by band and drum, or other means, to generate the involute form of teeth.
Patent GB-491665-A (GB)
Title: Improvements in inflated game balls and methods of making the same
IPC: A63B41/08
Filed: 1937-03-17
Abstract: 491,665. Game balls. REACH, M. B. March 17, 1937, No. 7898. Convention date, April 2, 1936. Drawings to Specification. [Class 132 (ii)] In making a game ball. a moulded wax form is coated with rubber or similar gum and pieces of textile fabric impregnated with bonding material, are secured thereon. An opening is then made, a steam nozzle inserted and the wax melted out. Next, a bladder with a self - closing valve, is introduced and inflated and a reinforcing patch placed over the opening. A coating of rubber is then applied and the ball subjected to a quick forming cure in a mould which causes the rubber to flow and produce a smooth exterior surface upon which leather panels are subsequently cemented ; a final moulding operation under pressure and moderate heat integrally bonding said leather panels to the foundation wall. The inflation after removal of the former may be made without a bladder and in either case the removal opening is permanently sealed by a patch. A former other than wax may be used.
Patent GB-1131812-A (GB)
Title: Improvements in and relating to methods and machines for the manufacture of cigar bunches or single-leaf cigars
IPC: A24C3/00
Filed: 1966-02-23
Abstract: 1,131,812. Cigar making machines. PATENT MACHINE BOUW N.V. 23 Feb., 1966 [19 May, 1965], No. 8004/66. Heading A2C. A cigar making machine includes means whereby individually formed plugs of tobacco of single or double cigar length are deposited end to end on a longitudinal moving band of reconstituted tobacco and wrapped therein to form a continuous rod, which is then cut off into single or double length cigars. Scrap tobacco is pushed down shoot 1 Fig. 2 into a shaft 2 and is periodically pushed by plunger 4 into vertical chamber 5 containing a reciprocating knife 6 and plunger 7. The tobacco plugs, which have less tobacco at their ends than in the remainder of their length, due to the shape of the shaft 2, are pushed into a channel 8, through which runs a length of reconstituted tobacco wrapper 35 carried on an endless belt 13. The plugs of tobacco are given a rounded cross-section by co-operating grooved rollers 14 and 15 and by a presser 17, Figs. 3 and 4. One edge of the wrapper is then folded over on to the scrap tobacco and the other edge is gummed by an adhesive applicator 19, Fig. 5. The gummed edge of the wrapper is folded on to the previously folded edge by a guide 20, Fig. 6, the seam is heat sealed by a device 21, Fig. 7 (not shown), and the wrapped continuous rod is cut into single or double cigar lengths by a reciprocating knife. The less dense ends of the cigar length cut from the rod facilitates their subsequent shaping to form rounded or conical ended cigars.
Patent GB-572142-A (GB)
Title: Prevention of deterioration of grain
IPC: A23B9/00
Filed: 1943-05-20
Abstract: Grain or pulses are protected from insects by incorporating therewith say 0.05 to 0.5 per cent. of g -alumina prepared from a solution of sodium aluminate by precipitation with sodium bicarbonate or by dilution, separating and washing the precipitate, and drying and activating by heating to 250-500 DEG C for 24-2 hrs., the alumina being pulverised before or after activation to a particle size substantially below 10 microns. Conditions of precipitation are preferably such that the precipitate is neither gelatinous nor in coarse crystal form, as in the former case hard lumps are obtained after activation, whereas from a granular compact form of precipitate in which the individual crystals are less than 5-10 microns soft chalky lumps are obtained which are readily pulverised. Precipitation is preferably effected with vigorous stirring in the presence of seeds at 30-60 DEG C and extended over 1-24 hours. Pulverising after activation may be carried out in some cases by wet ball milling for at least 20 hours, followed by redrying and crushing. Activation may be carried out in a current of hot air. Examples of preparation under different conditions are given. Specification 554,889, [Group III], is referred to.  A statement of the art refers to the prior use of final ground corundum and bauxite for protecting grain, about 1 per cent. of the mineral dust being used.  According to the Provisional Specification, any finely divided powdered "prepared" alumina may be used, either in the form of boehmite (A1OOH) or as g -alumina, and may, if desired, be obtained from an aluminium salt by adding alkali.  The precipitate may be heated to 80-360 DEG C, and ground if necessary.
Patent GB-485230-A (GB)
Title: Phenol-aldehyde condensation products
IPC: C08G8/28
Filed: 1937-03-18
Abstract: Resoles soluble in weak alkalies to at the most faintly phenolphthalein-alkaline reaction, are made by condensing dihydroxydiarylsulphones with formaldehyde (or substances yielding it) in a concentrated solution the alkalinity of which lies between the neutral point and the beginning of phenolphthaleinalkaline reaction.  Fillers may be mixed with aqueous solutions (reacting at most faintly phenolphthalein-alkaline) of the resoles, and the mixture hardened; fillers, e.g. sawdust, may be mixed with the resoles and the mixture dried and hot-pressed, or there may also be added (before or after condensation) aliphatic polyhydric alcohols such as glycol, glycerol or its polymers or condensation products, or dimethylolacetone, the mixtures being then mouldable by cold pressure.  Dilute weaklyalkaline aqueous solutions of the resoles may be used for impregnating textiles and wall- and other papers and for after-treating formaldehyde- or chrome-tanned leather. In examples: (1), (2), (3) dihydroxydiphenylsulphone or a sulphone prepared from (2) crude cresol or (3) m-cresol by the process of Specification 471,010 and formaldehyde; (4) dihydroxydiphenylsulphone and paraformaldehyde, are condensed in the presence of caustic alkalies such as caustic soda or potash, of the hydroxides of the alkaline earths, of carbonates such as sodium and potassium carbonates, or of borax or phosphates. German Specification 464,088 is referred to.