baber/WOPTO huggingface dataset:
Patent GB-497433-A (GB)
Title: Improvements relating to pull-out tables
IPC: A47B1/05
Filed: 1937-06-22
Abstract: 497,433. Extending tables. EARNSHAW, J. C., BOOTH, W., and SHARROCKS, J. W., (trading as EARNSHAW BROS. & BOOTH). June 22, 1937, Nos. 17327 and 19701. [Class 52 (iii)] In an extending table of the kind comprising two pairs of hinged leaves A, A<1>, B, B<1> mounted on sliding battens C, D, each pair of battens slides between two guide rails E, and the inner end of each batten is provided on its underside with a lateral projection G<1> which bears against the underside of one guide rail and which when the batten is fully extended, turns a weighted member H pivoted to the guide rail into position to support the hinged leaf. In a modification, the weighted members H are pivoted to the side frame of the table, and are turned into position to support the hinged leaf by gravity only.
Patent GB-241298-A (GB)
Title: Improvements in digesters or sterilizers for treating palm fruit and like nuts provided with a fibrous covering containing oil or fat
IPC: C11B1/12
Filed: 1924-07-22
Abstract: 241,298. Downs, C., and Bellwood, R. A. July 22,1924. Digesters.-Apparatus for the treatment of palm fruit &c. to remove and soften the fibrous covering comprises a long cylindrical container A in which rotate beaters on a shaft E, the container being provided with a lining or inner surface of a grater or other abrasive character; the beaters are similarly formed and rasp-like sleeves M are provided on the shaft E. The container is supplied with steam by branched pipes n, n<1>, n<2>, and the bottom C, provided with a shaft bearing is pivoted. The liner D, blades L, and sleeves M may be formed of pierced or expanded metal.
Patent GB-944223-A (GB)
Title: Improvements in or relating to air pressure operated apparatus
Inventor: BALLARD DONALD HENRY
IPC: F16D65/28
Filed: 1960-05-18
Abstract: 944,223. Fluid-pressure brakes. CLAYTON DEWANDRE CO. Ltd. May 12, 1961 [May 18, 1960], No. 17554/60. Heading F2F. A fluid pressure vehicle brake servo-unit comprises two end-toend arranged piston and cylinder devices, one piston transmitting thrust to the other by means interconnecting the corresponding cylinder ends to provide unified additive thrust. A pair of cylinders 1, 2 are secured together to a flanged plate 3 by a split clamping ring 5. Admission of compressed air at 14 to the left of a piston 8 is communicated by ports 13, 15 and hollow piston rod 9 to the corresponding side of a second piston 10. The piston rod 9 abuts the piston rod 11 of piston 10 to provide additive thrust to the output stud 12. Return springs 8a, 10a respectively are provided for the pistons and filtered air is allowed to pass to the space behind the piston 8 through a breather 16. A breather for the piston 10 may be provided in a mounting stud.
Patent GB-143751-A (GB)
Title: Improvements in portable soldering devices
IPC: B23K3/08
Filed: 1919-07-14
Abstract: 143,751. Bell, J. M., and Deventer, H. R. July 4, 1919. Addition to 130,480. Soldering.-In a modification of the soldering- apparatus described in the parent Specification, an air valve is fitted in the pump or rubber bulb, instead of on the air-pipe. The air-pipe 2, with handle 4 and bulb 3, is connected by one of the side arms 25 to the solder reservoir 1, which is made preferably as a single casting. The valve 25<1> at the end of the bulb is closed normally by a spring &c., and, on pressing the bulb, solder is ejected through a tube 15, the upper portion of which has a heat-retaining casing 31. A lever 10, pivoted at 11 to the upright 12, carries a valve 9 releasable from its seating to allow the excess solder to return to the reservoir from the trough 5. The apparatus is provided with a hook 29 and a hook or eye 30 to suspend it, if desired, when in use. A foot-rest 26 is bolted to a counterbalance 28, preferably integral with the reservoir, for supporting the apparatus when being heated &c.
Patent GB-236736-A (GB)
Title: Improvements in hinging arrangements for the windscreens of vehicles
IPC: B60J1/04
Filed: 1924-07-24
Abstract: 236,736. Armstrong Siddeley Motors, Ltd., and Caswell, B. July 24, 1924. Pivoting adjustments. -The wind - screen used on a vehicle is formed with a circular edge 3 that is embedded in a channel 5 of strip metal with sides of a shape to embrace closely the edge of the screen and of dovetail or similar section, as shown. The channel member is secured as by screws 7 to the upper edge of the dashboard 4.
Patent GB-319074-A (GB)
Title: Improvements in or relating to electric terminals
IPC: H01R33/94
Filed: 1928-06-19
Abstract: 319,074. General Electric Co., Ltd., and Kaula, R. J. June 19, 1928. Binding-posts.- The wire is connected to a lamp holder contact or other spindle by means of a terminal 18 having a longitudinal hole 29 communicating with a lateral hole 30 and provided with a binding screw 32. A single oblique hole may be employed alternatively and the wire is introduced through the lateral opening. The terminal may form part of the lamp-holder contacts 23, the spindle 19 being surrounded by a spring 27 fitted in recesses in the body 1. The terminals are separated and shielded by insulating guards as described in Specification 285,785 and the wires are gripped between a projection 8 and the cover 2 as described in Specification 285,148.
Patent GB-853703-A (GB)
Title: Batch feeding device for ceramic shaping machines
IPC: B28B13/02
Filed: 1959-05-25
Abstract: 853,703. Feeding clay to moulding-machines. NETZSCH, E., [trading as NETZSCH GEB.]. May 25, 1959 [May 24, 1958], No. 17735/59. Class 87(2). Clay in a container c is fed to a mould f in a rotating table g by a screw e which is mounted outside the container to engage only the side of the clay. A slice of clay is cut off by a wire o. To prevent the wire from cutting the clay on its return stroke, a cam p lifts the container c. The screw is driven intermittently by a motor t the timing of which is controlled to adjust the thickness of the slice.
Patent GB-1309597-A (GB)
Title: Stabilised shellac sealing coating for tablets
IPC: C08L93/02
Filed: 1970-04-14
Abstract: 1309597 Coating tablets COLORCON Inc 14 April 1970 [9 May 1969] 17806/70 Heading A5B Pharmaceutical tablets and the like are coated with a moisture-barrier coating composition comprising shellac having free acid groups and a polymeric material having free basic groups in quantities such that the molar ratio of basic to acid acidic groups is 0.1 to 1.3:1. Suitable polymers are polyvinyl pyrrolidone, polyvinylpyridine and polymers of linoleic acid with polyamines. The coatings may be applied by pan coating using a solution of the above ingredients in a volatile solvent, which may also contain a colourant and a detackifier.
Patent GB-1472116-A (GB)
Title: Method and test kit for determination of triodothyronine
IPC: G01N33/78
Filed: 1974-04-24
Abstract: 1472116 Determination of triiodothyronine YISSUM RESEARCH DEVELOPMENT CO 24 April 1974 [25 April 1973] 17962/74 Heading G1B A method for the in vitro determination of triiodothyronine (T3) in a biological fluid e.g. serum comprises (a) admixing a predetermined quantity of the biological fluid with a predetermined quantity of radioactive labelled T3 in solution and allowing the mixture to equilibrate; (b) introducing the equilibrated mixture into a column of a cross linked dextran gel having a pH of at least 10.5 or less than 3; (c) washing out substantially all the proteins with a liquid of pH from 6 to 9; (d) introducing into the column T 3  specific antiserum in such an amount as to bind part of the total T 3  content of the column, making a count of the radio-activity in the column, and incubating the antiserum together with the contents of the column; (e) washing out the antiserum bound T 3 ; (f) making a further count of radio-activity; and (g) determining the T3 content of the sample from these counts and from a calibration curve. A test kit for use in the above method comprises a column containing cross linked dextran gel having a pH of at least 10.5 or less than 3, T 3  - specific anti-serum, radio-active labelled T3 and a washing liquid buffer having a pH of 6 to 9. The column may comprise essentially a cylindrical tubular body terminating at one end in a tapered tip portion provided with a friction fit cap which removably closes the tip portion, the dextran gel is retained in the body between two discs, and the other end of the tubular body is formed with an outwardly projecting flange and is provided with a removable cap for sealing the other end.
Patent GB-1436278-A (GB)
Title: Scanning electron microscopes
IPC: H01J37/244
Filed: 1974-04-24
Abstract: 1436278 Luminescent materials and uses thereof AMERICAN OPTICAL CORP 24 April 1974 [24 April 1973] 17976/74 Heading C4S [Also in Division H1] A scintillator for use as a detector of secondary and reflected electrons in a scanning electron microscope (see Division H1) consists of a high purity silicate glass doped with at least 10 parts per million, and preferably 50 parts per million, of a cerium oxide providing Ce<SP>3+</SP> ions. The scintillator is ground and polished to a hemisphere and secured by a transparent adhesive to the end of a light pipe.
Patent GB-245174-A (GB)
Title: Improvements in or relating to pumping apparatus
IPC: F04B39/08
Filed: 1924-07-28
Abstract: 245,174. Curtis, K. L. July 28, 1924. Combined liquid and air pumps in series; casings for actuating mechanism; valves and valve seats, arrangement of.-A vacuum pump, particularly for refrigerators has in combination a mechanically operated inlet valve and an exhaust valve not less in diameter than the cylinders so arranged in the cylinder head that there may be no clearance. The pump includes a cylinder 13 mounted on an airtight crank case 14, and a cylinder 15 in the lower part of the crank-case, the pistons 16, 17 having a common piston-rod 31. The exhaust valve 20, Fig. 6 is a disc held by springs 22 on a washer 28<1> between the cylinder head and barrel, the washer forming a seat for a sleeve comprising the inlet valve. The sleeves 24, 25 have clamps 37, 38 at their ends which are connected by rods (not shown) and are actuated by a cam on the crank disc 35 through a roller 40 rod 45 and spring 48 to take up overtravel of the rod. Return springs connect the clamp 38 and cylinder 15. Vapour is drawn through the passage 52 and exhausted to the crank case through the passage 47 and aperture 53 in the hollow rod 45. To render the main pump inoperative at starting a capsule 60 containing air at atmospheric pressure opens a by-pass 57 when the vacuum is low.
Patent GB-279157-A (GB)
Title: Improvements in or relating to the construction of wax figures and models
IPC: A63H9/00
Filed: 1926-07-19
Abstract: 279,157. Green, S. C. C., and Tussaud, L. July 19, 1926. Statuary.-The projecting parts of wax figures are reinforced by means of a core of twisted or corded fibres of animal, vegetable, or mineral material, so that they will yield slightly to pressure without breaking. Cotton, hemp, hair, wool, silk, paper, and flexible wire are mentioned as suitable fibres.
Patent GB-585736-A (GB)
Title: Improvements in or relating to differential gears for motor vehicles or the like
IPC: B60K17/16
Filed: 1944-09-22
Abstract: 585,736. Differential gearing. . BUTTERWORTH, A. J. Sept. 22, 1944, Nos. 18161/44 and 14171/45. [Class 80 (ii)] A differential gear has shrouds 32 or filling members closely approaching the teeth of the planet pinions 26 and of the driven gear wheels 21 around their circumference but leaving clearances 31 at and near the points of engagement thereof, the gear being enclosed in an oilfilled casing 20. When one driven gear wheel rotates relatively to the other oil is pumped between the shrouds and the gear teeth so as to apply a load to the faster driven gear wheel and enable the slower moving gear wheel to receive an adequate share of the driving torque. Opposite recesses 31 may be connected by oil escape orifices 17 which may be adjustable. As shown, the mechanism is provided with mechanical braking means which assists the hydraulic effect when differential movement occurs. For this purpose the gear wheels 21 which are splined to the half axles 25 are permitted of slight axial movement and friction rings 30 are located between the sides of the gears 21 and the casing 20. Thus the oil pressure developed upon the occurrence of differential movement will move the gears 21 axially to produce friction between the parts 20, 21, 30 to lock the gears frictionally to the casing. Alternatively a positive lock, which becomes effective upon differential movement, may be arranged between the gears 21 and the casing 20. Specification 119,363, [Class 80 (ii)], is referred to.
Patent GB-477165-A (GB)
Title: Preparation of enzyme material
IPC: C12N9/50
Filed: 1936-06-30
Abstract: Material containing proteolytic enzyme is obtained by treating fruit juice containing proteolytic enzyme, e.g. pineapple juice, with 5--50 per cent, usually 25--30 per cent, by weight of a soluble metallic or ammonium salt of an inorganic acid and separating the precipitate thus obtained.  Salts specified are sodium chloride, potassium chloride, sodium sulphate, ammonium sulphate, ammonium phosphate, calcium acid phosphate, aluminium sulphate and sodium tungstate.  The enzyme material so obtained may be mixed with other enzyme material; it may be used for the desizing of textile fibres, particularly rayon filaments, with or without a diastatic enzyme such as malt extract; and it may be mixed with flour and used in the preparation of bread as a gluten improver.  Reference has been directed by the Comptroller to Specification 19178/90, [Class 2].ALSO:Material containing proteolytic enzyme, which may be mixed with flour and used in the preparation of bread as a gluten improver, is obtained by treating fruit juice containing proteolytic enzyme, e.g. pineapple juice, with 5-50 per cent, usually 25-30 per cent by weight of a soluble metallic or ammonium salt of an inorganic acid and separating the precipitate thus obtained.  Salts specified are sodium chloride, potassium chloride, sodium sulphate, ammonium sulphate, ammonium phosphate, calcium acid phosphate, aluminium sulphate and sodium tungstate.  The enzyme material so obtained may be mixed with other enzyme material. Reference has been directed by the Comptroller to Specification 19178/90, [Class 49].
Patent GB-1001281-A (GB)
Title: A deep drawing, non-ageing cold rolled steel sheet
IPC: C21D3/02
Filed: 1962-05-11
Abstract: A deep drawing, non-ageing cold rolled steel sheet contains 0.03-0.12% P, up to 0.02% C, and up to 0.0025% N, the balance, apart from impurities, being iron.  Impurities disclosed are Mn up to 0.36%, traces of Si and up to 0.018% of S.  The steel sheet may be made by decarburizing and denitriding a cold rolled steel sheet containing the correct amount of phosphorus (e.g. by open coil annealing in an atmosphere such as moist hydrogen-nitrogen).
Patent GB-925514-A (GB)
Title: Improvements relating to telephone system substation circuits and to tone current generating oscillations suitable for use in such circuits
Inventor: KINSEY RONALD WILLIAM STANLEY
IPC: H04M19/04
Filed: 1959-05-28
Abstract: 925,514. Sub-station circuits and features. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 23, 1960 [May 28, 1959], No. 18236/59. Class 40 (4). In a telephone sounder circuit which is responsive to an alternating calling current of predetermined frequency superimposed on a D.C. power supply, a tuned reed relay and a first storage capacitor charged by the D.C. supply are connected across a line in such a way that the alternating current operates the relay so that a circuit between the first capacitor and a second capacitor is made once per operating cycle of the relay, the rate of transfer of charge from the first to the second capacitor being rapid compared with the charging rate of the first capacitor, the charge on the second capacitor then serving to operate a tone sounder. The tuned reed relay VR (Fig. 2) which may be responsive to a frequency within the range 200-800 c.p.s. is connected across the line wires 1 and 2 and periodically closes its contact at vr when the vibration of the reed has built up sufficiently in response to ringing current. The first storage capacitor CS1 will then rapidly transfer charge to second capacitor CS2 which, when sufficient charge has built up, will operate tone generator OSA, a circuit diagram of which is shown in Fig. 3. When the voltage on CS2 exceeds about 20 volts a Zener diode ZD breaks down and allows silicon transistor TSN to conduct and, by virtue of the tuned circuittransformer TR, condenser CT-it will oscillate for a short period of time. During oscillation, tone sounder TS will emit a burst of vibrations at about 2000 c.p.s. The frequency at which the bursts of tone current occur will depend on the circuit characteristics but it will be fairly high, i.e. a few cycles per minute. An alternative form of oscillator is depicted in Fig. 4 (not shown) for producing a tremulous tone while Fig. 5 (not shown) indicates an arrangement whereby a germanium transistor is used in conjunction with a biasing voltage on its base electrode, the biasing voltage being derived from a rectifier arrangement, this circuit is suitable for use in places of high ambient temperature. In Fig. 6 (not shown) a four-zone diode is depicted in the emitter circuit of a transistor since in this case the oscillations are triggered by the forward breakdown voltage of this type of diode. It is stated that these arrangements of sounder circuits prevent spurious currents in the line from initiating a false call and they may also be used to advantage in party line systems by using ringing currents of different frequencies for the respective parties.
Patent GB-260030-A (GB)
Title: Oil well pump
Filed: 1925-07-17
Abstract: 260,030. Zublin, J. A. July 17, 1925. Crank-and-lever-actuated double-acting bucket pumps ; assembling parts; buckets ; cleaning ; pumps for gritty liquids.-A pump for oil wells &c. has a bucket comprising a number of units or sections closely connected to each other. Each unit has a sleeve which fits in the pump barrel and has a hardened outer surface, and is shorter in length than the stroke of the pump. The unit comprises members 85, 104, Fig. 17, connected by a screw-threaded tube 89, and a sleeve 113 having a portion of reduced internal diameter held between the member 85, 104. The oil passes the ball-valve 92 seated on the end of the tube 89 and through passages 87, 119 in the hollow members. The units are connected by T-bolts 128, slight clearances being left between the members 85 and 104, and between the bolt and the hole 122 in the member 104 in order to produce a flexible joint. The sleeve has a sharp edge 156 to remove sand from the barrel, is made of relatively soft, resilient metal, and is casehardened. A pair of units may be separated by packing comprising rubber &c. cups 186 strung on a tube 190 and positioned by spacers 187. The upper bucket has a head 95, Fig. 5, integral with the member 85 and provided with vertical channels 98 for the passage of oil and with flats 99 and a hole 100 to facilitate assembly of the parts. The barrel consists of a number of uniform sections which may be connected by a spigot and socket joint or by a screw-threaded coupling member 78, Fig. 4. The ends of the sections 60 abut and their machined faces 79 are a sliding fit in the member 78. A string of rods 44, Fig. 1 is connected to the upper bucket and to one end of a beam 47, pivoted at 49 and connected at the other end by a rod 54 to a crank 52.
Patent GB-811215-A (GB)
Title: Improvements in the production of quartz crystals
IPC: C30B7/00
Filed: 1954-06-23
Abstract: Quartz crystals are grown on natural or synthetic quartz seed crystals, having major faces which are Z-faces, suspended so that the normal to the major faces makes an angle not greater than 30 degrees with the horizontal in an aqueous solution of sodium carbonate of between 0.1 N and 3 N, over a supply of particles of quartz source material, in a sealed, vertical, cylindrical container, whose outer surface in the neighbourhood of the source material is maintained at 330 DEG  to 400 DEG  C. and in the neighbourhood of the seed crystals at 10 DEG  to 40 DEG  C. lower, the solution occupying a volume, at room temperature, between 70 and 85 per cent of the available volume of the container, the initial weight of the source material being equal to 0.05 grams per c.c. of the solution plus 1.1 or more times the total desired increase of weight of the seed crystals, and the particle size of the source material being such that the total projected area of the source material is between 1 and 7 times the cube of the internal diameter of the container in cemtimetres.  The available volume of the container is the actual volume of the container less the volume of the source material, seed crystals and their supports. The total projected area of the source material is the area enclosed by geometrical projections of the outlines of the particles on to a horizontal surface when the particles are spread out on the surface.  The source material is melting quality quartz crushed and graded by sieving to obtain the required size; a mixture of two or more sizes may be used to obtain the required total projected area.  The seed crystals are thin plates cut with the major faces perpendicular to the Z-axis, and suspended one above the other by platinum wires wrapped around notches cut in them, with the major faces vertical.  The container is a steel cylinder with a top which is bolted in place, heated by standing on an electric hot plate in a furnace case packed with insulation material, the temperatures on the external surface of the cylinder being measured by thermo-couples. The cylinder is first cleaned by a "dummy run" without seed crystals or source material, using a solution of sodium carbonate and sodium hydroxide.  A formula is given to calculate the duration of the process to produce a desired amount of growth.  A lubricant to prevent sticking of nuts subjected to high temperature consists of molybdenum disulphide powder suspended in methyl salicylate.
Patent GB-271803-A (GB)
Title: Improvements in apparatus for generating acetylene under pressure
IPC: C10H9/00
Filed: 1926-07-24
Abstract: 271,803. M³tschele, R. May 25, 1926, [Convention date]. Liquid raised up to solid; purifying.-The cover 3 of an apparatus for generating acetylene under pressure, in addition to sealing the generating chamber, serves also to carry a. tube 7 open at the bottom end extendirg nearly to the base of the chamber, so forming a counter-pressure chamber. The cover also carries a purifying and condensation chamber 14 and the basket 10 for the carbide, the basket 10 being supported on a rod 11 slidable in the cover. The tube 7 is riveted to the cover while its lower open end is cut away at the point 9 so as to provide a passage for the entry of water. Gas leaves the generating chamber through the purifying and cooling chamber 14. The cover also carries the outlet valve and connection, a pressure gauge, and a safety valve. A yoke 4 and central screw 5 serve to secure the cover, and the yoke 4 is provided with a handle 6 for carrying the generator. The normal height of the water is adjusted by means of a plug 20, together with an internal water-level mark.