baber/WOPTO huggingface dataset:
Patent GB-520854-A (GB)
Title: Improvements in, or relating to, machines for packing rows of cigarettes or of similarly shaped articles into rectangular boxes or like receptacles
IPC: B65B19/12
Filed: 1938-11-02
Abstract: 520,854. Packing cigarettes into boxes. ROSE, A. G., and ROSE BROS. (GAINSBOROUGH), Ltd. Nov. 2, 1938, No. 31674. [Class 94 (i)] Apparatus for packing cigarettes into rectangular boxes comprises means for feeding a batch of cigarettes from a hopper on to a movable platform, means for moving the platform into an inclined position, and means for transferring the cigarettes from the inclined platform into a box. The cigarettes 1 are stored in a hopper 2 and they gravitate between vanes to form an even row at the base of the hopper. This row is discharged by a reciprocating member 8, Fig. 1, into the space between a platform 29 and a guide plate 32, and comes to rest against a stop plate 61 carried by a pivoted arm 59. Next, the platform 29 moves downwards and is inclined towards a box 81 supported on a pocket 79 on a conveyer chain, so that the row of cigarettes point at the box. During this movement, levers 51 carried by the platform press the cigarettes together so that they occupy a length slightly less than the internal length of the box. The stop plate 61 is also swung away from the cigarettes. As soon as the movement of the platform stops, a plunger 66 presses the row of cigarettes into the box and a positioning member 83 presses them into place. In a modification, the stop plate 61 is replaced by a brush which presses lightly on the row of cigarettes.
Patent GB-919367-A (GB)
Title: Improvements in or relating to beads
Inventor: SCHALLER HERMAN
IPC: A44C11/00
Filed: 1960-09-15
Abstract: 919,367. Jewellery. SHALLWIN Ltd. Sept. 4, 1961 [Sept. 15, 1960], No. 31850/60. Class 43. [Also in Group XXV] A poppit bead has a body 1 having a socket formed therein and a long neck 3, carrying at the outer end thereof a head 4 dimensioned for engagement in the socket of a like bead, the neck extending from the body diametrically opposite to the mouth of the socket and being of such length as to act as a support or thread for a through bead 6. Reduced portions 5 and 5<1> connect the neck to the body 1 and head 4. The bead is made of resilient plastics material.
Patent GB-793649-A (GB)
Title: Improvements in or relating to electro-dynamic pick-off devices for detecting movements
IPC: G01C19/28
Filed: 1955-11-08
Abstract: 793,649. Transducers. MINNEAPOLISHONEYWELL REGULATOR CO. Nov. 8, 1955 [Nov. 8, 1954], No. 31888/55. Class 40 (1). In an assembly (e.g. a gyro) comprising two relatively movable parts, one part is mounted on the other through the intermediary of an electrical pick-off which transmits electrical .signals dependent upon the relative movement of the parts and includes a bearing allowing relative rotation of the rotor and the stator of the pickoff, said rotor and stator being detachably secured to said two parts so that the pick-off can be mounted on the assembly as a unit without disturbing the alignment of the rotor and stator. As shown, the gimbal 12 of a gyro is journalled at the base 14 through the intermediary of a pick-off in a housing 22 which fits into a recess 16 in the base. This housing carried the stator 32 of the pick-off and has an inner flange 22 mounted by means of a bearing 26 on a shaft 42 which is attached to the gimbal at 48 and 50 and carries the pick-off rotor 36.
Patent GB-793825-A (GB)
Title: Improvements relating to polarised electromagnetic devices
Inventor: ROMMEL FREDERICK EMIL
IPC: H01H51/22
Filed: 1955-11-08
Abstract: 793,825. Electromagnets. TELEPHONE MANUFACTURING CO., Ltd. Oct. 25, 1956 (Nov. 8, 1955], No. 31914/55. Drawings to Specification. Class 35. [Also in Group XXXVII] The magnetic structure linked with the control winding of a polarized relay comprises a part (e.g. of silicon-iron) through which the major portion of the operating flux flows and a second part shunting magnetically the first part and formed of a material (e.g. a nickel-iron alloy) which compared with the first part, has a small coercive force, a small saturation flux density, and a high permeability at the magnetizing force produced by residual flux in the first part. Thus when the control winding is de-energized the residual flux is prevented from acting on the armature by being shunted through the second part. The Figures (Figs. 1-4, not shown) show the invention applied to the relays disclosed in Specifications 315,496, [Class 35], 619,546, [Group XXXVII], the magnetic structure being laminated, viz. comprising two or three similar-shaped laminations, one or two laminations being of silicon-iron and the remaining lamination of a nickel-iron alloy.
Patent GB-1561705-A (GB)
Title: Articles comprising cellulose ethers and the manufacture thereof
IPC: A61F13/15
Filed: 1976-07-30
Abstract: Small-particle cellulose ether which has become at least for the most part water-insoluble owing to modification but has remained highly swellable with water is converted into a material convenient for use. This entails the small-particle modified cellulose ether being attached at least on one side on a strip of hydrophilic material as substrate, and the latter being dried. The resulting strips are highly absorbent and show good fluid retention.
Patent GB-949080-A (GB)
Title: Apparatus and method for measuring the compressibility of liquids
IPC: G01N3/00
Filed: 1961-09-06
Abstract: 949,080. Testing compressibility of liquids. A. T. J. HAYWARD. Oct.17, 1962 [Sept.6, 1961], No.31960/61. Heading G1S. The compressibility of a liquid in a pressure vessel 10 is measured by applying a known load 18 to a plunger 15 passing through a fluid tight seal into the vessel 10 and measuring the amount the plunger is moved by the load. The plunger may be rotated, by a handle 19, to reduce friction as it moves. The load may be applied by a proving ring. In an alternative form (Complete drawing) the load is applied to plunger 34 and its movement measured by a standard tensile testing machine.
Patent GB-1065778-A (GB)
Title: Process for the preparation of potassium metaphosphate
IPC: C01B25/445
Filed: 1964-08-06
Abstract: Potassium metaphosphate, (KPO3)n, is prepared by partially reacting phosphoric acid and KCl at 120-300 DEG  C. and completing the reaction by running the partly reacted mass into a fused bath of (KPO3)n maintained at 560-850 DEG  C. The acid may be -ortho, meta or super phosphoric acid, preferably containing over 25% P2O5. Equimolar proportions, or excess of either reactant, may be used, and H2SO4 may be added to provide K2SO4\sBKCl in the product.  The first step may be carried out in a rotary kiln or tank furnace, to which the reactants are fed separately or as a suspension of KCl in the acid, heat being supplied by HCl gases from the second step and optionally by a burner. 45-75% of the KCl is allowed to react, and the fluid mass is then fed into a second rotary or tank furnace containing a (KPO3)n melt, heated directly by a burner above the surface of the melt or by a radiant roof, and/or by resistance heating of the melt. The m. pt. of the bath may be reduced by adding KCl, K2SO4, CaCl2, MgCl2 or oxides, e.g. of Ca, Mg, Fe, Al or Si. The melt may be cooled slowly, or rapidly, e.g. by tapping on to a water-cooled metal conveyer or rotary drum, to give a water-insoluble or -soluble product respectively, which may then be ground and screened.  Alternatively, the melt may be sprayed to give granules. The HCl evolved in both steps may be fed to an aqueous absorber.
Patent GB-858787-A (GB)
Title: Surgical swabs
IPC: A61B19/00
Filed: 1958-10-07
Abstract: A rounded mass of X-ray opaque material is injected as a viscous solution, heat-softened thermoplastic or a plastisol into the body of a regenerated cellulose or gauze swab (see Group VI) where it solidifies.  The mass includes a resin base, e.g. cellulose ester, vinyl chloride polymers such as polyvinyl chloride, acrylic acid polymers or acrylic acid ester polymers and contains X-ray opaque material e.g. barium sulphate, lead, lead silicate or an iodine compound.  The mass may also include dioctyl phthalate, barium stearate, castorwax, carbon black or tetrahydrofuran.  Specification 795,870 is referred to.
Patent GB-486288-A (GB)
Title: Improvements in and relating to the plastic shaping of zinc alloys
IPC: C22C18/04
Filed: 1937-11-20
Abstract: Zinc alloys contain (a) 2 per cent of copper, 0,04 per cent of magnesium, and 10 per cent of aluminium, and (b) 0,3 per cent of copper and 10 per cent of aluminium.
Patent GB-651122-A (GB)
Title: Improvements in or relating to combined air circulators and heaters
IPC: F24H3/04
Filed: 1948-12-13
Abstract: 651,122. Unit heaters. PRUDEN, D. CDec. 13, 1948, No. 32176. [Class 137] A unit heater includes a casing 1 with a top air inlet through e.g. a metal grille, at an outlet 3 at the bottom, and enclosing a. fan 5 and motor 4, the air being driven downwardly on to a deflector 7 which shields an associated heating element 10 located below it so as to prevent heat radiation into the casing. The deflector preferably comprises a waisted skirt 9 forming a heat reflector and having an upwardly curved lower end 12 to shield the floor.
Patent GB-851202-A (GB)
Title: Improvements in and relating to electric dry cells
IPC: H01M50/466
Filed: 1958-10-09
Abstract: 851,202. Batteries. UNION CARBIDE CORPORATION. Oct. 9, 1958 [Oct. 9, 1957], No. 32202/58. Class 53 A rechargeable dry cell comprises a metal container 10 constituting the positive terminal and enclosing a cathode 16 of manganese dioxide and graphite bonded with Portland cement and potassium hydroxide solution. A small amount of steel wool may be included. A separator 22 in the form of bag encloses the anode 25 consisting of zinc powder mixed with potassium hydroxide solution and sodium carboxymethyl cellulose. The bag 22 may consist of three layers, the outer layers being made of a copolymer of acrylonitrile and vinyl chloride, the middle layer being a semi-permeable membrane of cellulose acetate. The anode is made by mixing the powdered zinc with water and sodium carboxymethyl cellulose and extruding the mixture into thin sheets which are dried and crushed. Potassium hydroxide solution is then added to the crushed material to form a gel. A copper screen 24 serves as anode collector and is connected by a wire 32 to the terminal plate 34. A cylinder of polyethylene sponge made electrolyterepellent by being dipped in a paraffin solution of ether and then dried may be placed within the screen 24. The elements of the cell are covered at both ends by elastic permeable spacers 18, 26 to provide expansion spaces 20,28. The cell is closed by a plastic disc 30 and is provided at its lower end with a blow-out safety vent 14. Specification 851,201 is referred to.
Patent GB-1282093-A (GB)
Title: Indicator boards
Inventor: WHITBREAD HUMPHREY
IPC: G09F7/06
Filed: 1968-07-05
Abstract: 1282093 Indicator boards H WHITBREAD 4 Aug 1969 [5 July 1968] 32236/68 Heading G5C An indicator board, e.g. for use in a church, has rows of pegs 4 on which hang indicia in the shape of numbers and/or letters 5-9, each of which has a hole vertically above the centre of gravity of the number or letter so it hangs straight and, if moved by an air current, provides an animated effect.
Patent GB-155710-A (GB)
Title: Improvements in or relating to gas fires
IPC: F24C3/04
Filed: 1919-12-23
Abstract: 155,710. Gabell, J. Dec. 23, 1919. Gas stoves; heatradiators.-In combination with an open gas fire a a system of tubular radiating- elements d is employed. extending in parallel between headers c and e, the lowermost header being above the level of the top of the fire; the combustion products after leaving the upper header first descend before entering the chimney. In the arrangement shown, a pipe f leads the combustion products to the chimney, and a gas-burner g may be arranged beneath it to increase the circulation. In a modification, the combustion products before entering the header c pass through pipes extending through water tanks at the sides of the stove. One or both tanks may be connected by flow and return pipes to a hot-water radiator.
Patent GB-342296-A (GB)
Title: Improvements in the manufacture of aqueous dispersions of bitumen
IPC: C08L95/00
Filed: 1929-10-25
Abstract: In producing aqueous dispersions of bituminous materials with the aid as sole dispersing agent of gelatine or other substances producing gellation and soluble per se in water, water-soluble metallic salts, in amounts ranging from 25 to 100 per cent by weight of the dispersing agent, are added as gellation inhibitors to the solution of dispersing agent prior to or during its admixture with the heat liquified bituminous materials.  Sodium and magnesium chlorides, potassium iodide, ammonium sulphate and thiocyanate, sodium benzoate and acetate are examples of suitable metallic salts, but alkaline metallic salts such as sodium carbonate or borax are not included. The dispersing agents do not include proteins such as alkali casein. When insolubility after drying is desired small proportions only of the dispersing agent are used.  According to an example, 150 parts of asphalt, melting point between 100 DEG  and 200 DEG  F., are dispersed in 100 to 150 parts of water containing about 1 part of gelatine and 0,25 to 1 part of any of the salts mentioned above. Specification 323,720, [Class 81 (i), Disinfecting &c.], is referred to.
Patent GB-1040379-A (GB)
Title: Fluid motor control system
IPC: F15B13/01
Filed: 1964-08-10
Abstract: 1,040,379. Hydraulic control systems. CATERPILLAR TRACTOR CO. Aug. 10, 1964 [Aug. 13, 1963], No. 32535/64. Heading F1P. [Also in Divisions E1 and F2] In a control system Fig. 1 (not shown) for a double acting hydraulic jack 12 controlling e.g. the wheel lean of a motor grader, wherein a spool valve 16 is operable to direct fluid under pressure to either end of the jack 12 while venting the opposite end, a normally closed pressure responsive valve 44 or 46 is disposed in each line leading to the jack for preventing escape of fluid therefrom under load, and each valve 44 or 46 contains a normally closed pressure breaker valve 54. The spool valve 16 is operated by fluid pressure supplied by a pump 11 and directed to either a spring chamber 17 or a spring chamber 18 by a power control valve 22. Assuming fluid is directed to chamber 17 the spool is displaced to the right and fluid passes from an inlet line 30 to a passage 32 to move a piston 48 to the right. The piston 48 opens the right hand breaker valve 54 permitting fluid to be vented from the other side of the jack 12 through a line 38 and passages 34, 40. The pressure build up in the passage 32 then opens the valve 44 to allow fluid to pass through helically arranged orifices 60, Fig. 2 (not shown) in a cylinder 51 into a line 36 leading to the jack 12. Further movement of the piston 48 opens the valve 46 to allow an increased return flow through the helically arranged orifices 60 in the cylinder 51 of the valve 46 uncovered by the pressure responsive valve 46.
Patent GB-1506810-A (GB)
Title: Selective removal of electrodeposited nickel-iron alloy
IPC: C23F1/44
Filed: 1976-08-04
Abstract: 1506810 Etching M & T CHEMICALS Inc 4 Aug 1976 [5 Aug 1975] 32554/76 Heading B6J Electrodeposited Ni-Fe alloys are selectively stripped from a metal substrate in an aqueous bath containing: at least one nitro substituted organic compound containing at least one solubilizing group; (b) at least one organic amine or polyamine or substituted amine or polyamine, and (c) at least one aliphatic carboxylic acid or salt thereof, or a compound which will yield the carboxylic acid or salt thereof in solution, wherein the said acid or salt contains at least one substituent group selected from one or more of -NH 2 , or quaternary amine salts thereof, -OH or -SH. Of the many suitable ingredients specified, those exemplified are: (a) m- and p-nitrobenzoic acids, and sodium mnitrobenzene sulphonate, (b) ethylene diamine and tetra sodium ethylenediamine-tetraacetic acid, and (c) sodium gluconate, sodium citrate, ammonium lactate, citric acid and glycine. In most of the examples, the substrate metal is steel, but in two examples a brass substrate is used in one of which diethyldithiocarbamic acid sodium salt is included in the bath composition to inhibit the etching of the brass substrate.
Patent GB-1428300-A (GB)
Title: Propeller hub
IPC: F16D1/096
Filed: 1974-07-24
Abstract: 1428300 Propellors ERIKSBERGS MEK VERKSTADS AB 24 July 1974 32642/74 Heading B7V [Also in Division F2] A propellor hub 17 is mounted on a cylindrical shaft 10 by means of a tapered sleeve 14 which is compressed inwardly by hydraulic pressure applied at 19 while the hub is moved up the taper by hydraulic nut 21. The hub can be released by reapplying hydraulic pressure to brake the tapered connection between the hub and the sleeve. The invention provides that the shaft is stepped to reduce the variation in thickness of the sleeve 14 along its taper. This allows the sleeve to be compressed, and therefor for the sleeve to grip the shaft relatively uniformly along its length.
Patent GB-1392304-A (GB)
Title: Method for blood sample analysis
IPC: G01N1/34
Filed: 1971-07-13
Abstract: 1392304 Preparing blood sample for analysis TECHNICON INSTRUMENTS CORP 28 June 1972 [13 July 1971] 32733/71 Heading G1B [ Also in Division B 1] A blood sample is prepared for analysis of its component amino-acids, e.g. by photometry or chromatography, by (i) applying the sample to a porous and absorbent carrier of sheet form, e.g. filter paper; (ii) treating the sample whilst absorbed to fix cells and proteins on the carrier, e.g. by  autoclaving; and, (iii) passing an eluting fluid through the carrier to remove the amino-acids. The elution is suitably performed in a sample holder which comprises a cylindrical hollow body I having a counterbore 4 in which is inserted a plug 5 to provide a filter chamber 9. Through bores 7 and 2 in the plug 5 and body 1 provide for passage of elution fluid. The ends 8, 15 of the sample holder are frusto-conically shaped for connection to eluting fluid inlet and outlet means. The chamber 9 contains a stainless steel sintered filter disc 10, e.g having a pore size to allow passage of particles of 10 to 20 microns size, a rigid disc 12 of ultra-fine filter material, e.g. of a pore size to allow passage of particles of a size up to 2 microns, and, sandwiched between the filter discs, a disc 11 of filter paper carrying the absorbed and fixed sample. Eluting fluid is admitted from the end 7.
Patent GB-811134-A (GB)
Title: Improvements in or relating to the purification of esters of hecogenin
Inventor: BEST ARTHUR PICKUP
IPC: C07J71/00
Filed: 1956-10-26
Abstract: Crude hecogenin acetate is purified by crystallization from an alkanol having a boiling-point in the range 95 DEG  to 140 DEG  C., or from an acetate of such an alkanol.  Specified crystallization solvents are n-propanol, n-butanol, their acetates, and sec.-butanol, and the crystallization is preferably preceded by a decolorization of the hot solution with charcoal.  Detailed examples illustrate the purification of hecogenin acetate samples whose initial purity is between 84 and 97 per cent.
Patent GB-703240-A (GB)
Title: Apparatus for measuring the magnetic susceptibility of gases
Inventor: MUNDAY CHARLES WALTER
IPC: G01N27/74
Filed: 1949-12-22
Abstract: <PICT:0703240/III/1> <PICT:0703240/III/2> Apparatus for the determination of the composition of a gas mixture by measuring its magnetic susceptibility comprises a body suspended on a fibre in a cell containing the test gas and subjected to a non-uniform magnetic field whereupon the body is rotated, the angular deviation being dependent on the susceptibility of the gas, and being noted by the reflection of a light spot on a mirror attached to the fibre.  In an embodiment, the suspended body comprises two similar quartz bulbs 10 (Fig. 2) connected by a quartz rod and mounted on a quartz fibre 9 between two soft iron pole pieces 4, 5 (Fig. 3) in a substantially air-tight cell 1 of non-magnetic material.  The gas mixture is led through the cell by capillary tubes 13, 14 directed away from the test body to avoid turbulence.  The cell is placed between the poles of a magnet (not shown) and the resultant angular rotation of the test body 10 is indicated by a mirror attached to the fibre 9, which may alternatively be a metal strip, and is preferably suspended with one end rigidly fixed, directly or in series with a small spring, and the other end attached to an adjustable torsion head.  Specification 703,241, [Group XL (b)], is referred to.
Patent GB-154534-A (GB)
Title: An improved method of, and apparatus for locating ore bodies by electrical means
IPC: G01V3/10
Filed: 1920-11-23
Abstract: 154,534. Hanson, E. C., (Assignee of Carlson, W. La V.). May 7, 1919, [Convention date]. Locating conductors.-An apparatus for locating bodies of ore consists of an exploring-coil 15 in series with an audio-frequency generator 1 and with one primary winding 6 of a differential transformer, the second primary winding 7 of which is connected in series with an adjustable resistance 8 to form a second circuit from the generator 1. The secondary winding 11 of the transformer is connected through thermionic amplifiers 12, 13 to a telephone or other indicator 14. On passage of the exploring-coil 15 over bodies of ore 16, the balance of the currents in the primary windings 6, 7 is disturbed, producing a sound in the telephone 14. The resistance 8 is adjusted to restore the balance, and may be calibrated in terms of ore density. For complete balance, the reactances of the differential circuits may also be balanced.
Patent GB-604877-A (GB)
Title: Method and means for the transmission of low frequency calls in telecommunication systems
IPC: H04Q1/442
Filed: 1945-12-07
Abstract: 604,877. Voice frequency signalling. STANDARD TELEPHONES & CABLES, Ltd. Dec. 7, 1945, No. 33145. Convention date, Dec. 26, 1944. Drawings to Specification. [Class 40 (iv)] [Also in Group XL (c)] A signalling arrangement for a telecommunication system comprises means for transmitting a signalling current having a fundamental frequency below the normal speech range and a harmonic within the speech range, arrangements being made at the receiving end to select the harmonic which is then caused to operate a signal repeating or generating device. In one embodiment applicable to radio or carrier systems, incoming 20 c.p.s. signalling current intermittently operates a relay which interrupts the plate circuit of the oscillator valve, thereby modulating the carrier at this frequency. At the receiver, after demodulation the sixth harmonic of the 20 c.p.s. current is selected and rectified, the resulting current operating a relay to bring in a local 20 c.p.s. supply. In a modification, the modulation is produced by short-circuiting at 20 c.p.s. a portion of the anode load of the oscillator valve, which portion may be a circuit tuned to emphasise'the desired harmonic. In an application of the invention to a voice frequency telephony circuit, the plate circuit of an amplifier valve may be interrupted to produce the desired ringing current. Alternatively, a separate D.C. circuit may be opened and closed at 20 c.p.s., the resulting current being fed to the line either through a condenser or transformer.
Patent GB-206719-A (GB)
Title: Improvement in children's bibs
IPC: A41B13/10
Filed: 1922-12-05
Abstract: 206,719. Johnston, A. L. Dec. 5, 1922. Bibs. - A bib is made of strong waterproof material such as silver or aluminium, is grooved and is provided with a trough A into which spilt food is led by the grooves. The edges of the bib are rounded off. Slits are provided at the top and bottom through which removable securing tapes can be passed.