baber/WOPTO huggingface dataset:
Patent GB-1237512-A (GB)
Title: Tape recording device
Inventor: CICATELLI RODOLFE
IPC: G11B15/18
Filed: 1969-02-28
Abstract: 1,237,512. Cassette type tape recorder. AUTOVOX S.p.A. 28 Feb., 1969 [9 Oct., 1968], No. 10840/69. Heading G5R. In a cassette type tape recorder a single actuator is provided which carries a cassette into its operational position, moves the tape into engagement with a capstan and the transduce and erase heads into engagement with the tape. When pivoted the actuator switches the tape drive into fast wind or rewind modes. On moving actuator arm 108 to the left, Fig. 8, a pusher element 106 engages and rotates a two armed lever 118 about a pivot 120 secured to the base 90 of the unit. This rotation moves an arm 102 to the right thereby moving a stop 100 out of engagement with a spring loaded two armed lever 64 carrying pressure roller 14 so that the lever and levers 60, 62 can now rotate under spring action to bring erase and reproduce heads 56, 58 into engagement with the tape and pressure roller 14 into engagement with capstan 12. This movement also shifts arm 66 to the right to a position which allows a lever 40 to rotate to bring a clutch coupled wheel pair 18, 22 into drive engagement with flywheel 8 and take up spool drive means 16. The operation can be changed from this normal reproducing mode by pivoting of the actuator and thereby a portion 80 which is coupled 38 to a flip over wheel 24 which either engages flywheel 8 with take up reel drive wheel 16 for fast wind or wheel 10 with feed reel drive wheel 26 for fast rewind. Flywheel 8 and wheel 10 are belt driven in opposite directions by an electric motor (not shown). Pivoting of the actuator also moves either prong 82 or 84 into engagement with either lug 65 or 67 on arm 66 whereby during operation in either of the fast wind modes the arm is moved slightly to the left so that the magnetic heads and pressure roller are lifted from the tape. The cassette 158 is entered through aperture 150 into receptacle 132 which is mounted for vertical translational movement. The leading end of the cassette engages a downwardly projecting part of a slide 169 which runs in slot 170 and pivots the slide so that a shoe thereon enters the top portion of the right hand hub bore of the cassette. On further entry of the cassette a spring 178, having an end attached to the slide is pivoted to a position in which it acts in the slot direction and urges the cassette to its final position in which it pivots an arm of a bell crank lever 162 out of engagement with a stop 164 on the actuating mechanism. The actuator 110 is now operated to move slide 102, 103 to the left so that the cassette in its receptacle is lowered to its play position in which the reel hubs &c. are engaged in their drive spindles. This movement also shifts the cassette slightly to the left to engage it beneath the heads 157 of its registering pins. When the actuator is again moved to the right the cassette and its receptacle are raised to their upper position and an arm 184 engages the slide 169 to eject the cassette.
Patent GB-215379-A (GB)
Title: Manufacture of disazo-dyestuffs
IPC: C09B35/08
Filed: 1924-05-02
Abstract: Disazo dyes are obtained by coupling tetrazotized benzidine- or tolidine-2 : 21-disulphonic acid with p-cresotinic acid; they yield brown tints when printed on calico with chrome mordants.
Patent GB-725602-A (GB)
Title: Improvements in mats for use as a matrix for stereotype plates
IPC: B41N1/06
Filed: 1953-04-21
Abstract: 725,602. Printing surfaces. RUSSELL, F. J. April 21, 1953, No. 10921/53. Class 100 (2). A flexible mat for use as a matrix for stereotype plates is characterized by being insertable into a typewriter and comprises a plurality of sheets of deformable metal foil 2, 4, 6, 8, each sheet being given extra depth by having a plurality of closely spaced depressions 10 formed therein, each of such depressions having an area which is relatively minute with respect to the area of the impressions 16 formed when the mat is struck with the type on selected type-bars of a typewriter. The mat may be provided with a compressible cellular backing sheet attached to the bottom sheet of metal foil. The depressions 10 may consist of dimples 10 or of a plurality of intersecting line indentations (Fig. 4, not shown). The metal foil may consist of metals such as aluminium, tin, lead or various alloys thereof, each foil having a thickness of approximately 0.002 inch, which is effectively increased to 0.007 inch by the indentations. Stereotype plates of plastic which sets without application of heat or pressure, e.g. methyl methacrylate are made directly from the matrix. These plates may be used directly for printing or as formes from which conventional stereotypes may be made.
Patent GB-577352-A (GB)
Title: Improvement in harmonicas
IPC: G10D7/12
Filed: 1943-07-07
Abstract: 577,352. Harmonicas. MAGNUS, F. H. July 7, 1943, No. 11055. Convention date, Aug. 26, 1942. [Class 88 (ii)] A harmonica comprises a reed plate A, a plurality of pairs of reeds 1, 2 on the plate each pair consisting of a "blow" reed and a "draw" reed, and a body having at one side of the reed plate a separate sound cell for each reed and at the other side of the reed plate a separate wind cell for each pair of reeds. In the construction shown the blow and draw reeds for each note are arranged in alignment and are secured to the reed plate by a common rivet 4. The reed plate is disposed between a bottom casing D, formed with the wind cells 6, and a plate E, Fig. 5, formed with apertures 7 for the draw reeds 2 and open-ended slots 8 for the blow reeds 1, these apertures and slots constituting the sound cells. Above the plate E is a cover F formed with a longitudinal rib 10 forming a dividing wall between two sound chambers 14, 15 which communicate respectively with the sound cells 8, 7. These sound chambers are open at the ends, see Fig. 1, and the chamber 14 is also open at 13 along the rear edge of the harmonica. The plates F, E, A and D are held together by screws 16. The mouthpiece 17 is connected to this assembly by transverse screws and has openings 18 which each register with two adjacent wind cells 6. The notes of the instrument cover the complete chromatic scale and a spring-controlled slide valve 23 is arranged behind the mouthpiece to cut off alternate notes so that each opening 18 of the mouthpiece communicates with the required one of its two wind cells. In a modification, Fig. 13 (not shown), the cover F is formed with only one sound chamber. Specification 573,912 is referred to.
Patent GB-1059764-A (GB)
Title: Purine nucleosides and acyl derivatives thereof
IPC: C07H19/16
Filed: 1964-03-17
Abstract: A purine nucleoside, or an acyl derivative thereof, is prepared by fusing an equimolecular amount of theophylline, or a purine of formula <FORM:1059764/C2/1> wherein R1 may be H, Cl, Br, I, CN, NH.Acyl, OH or NH2, R2 may be H, Cl, Br, NH.Acyl, or SCH3, and R3 may be H, Cl, Br, CN or NH.Acyl, or an acetyl derivative of such a purine, with a 1-0-acyl sugar derivative, in the presence of hydrochloric acid, a Lewis acid other than zinc chloride, phosphonyl chloride, or phosphonyl chloride containing 1% by volume of water, or in the presence of a compound having the formula RSO3H, where R represents -OH; alkyl; -NH2; -N(alkyl)n, where n is 1 or 2; phenyl which may be substituted by alkyl, nitro, halogeno or amino; -C6H3.OH.COOH; -CH2COOH; a - and b -naphthyl; and m-benzenesulphonyl groups; removing the acid produced under reduced pressure in the course of the reaction, and optionally deacylating the product by a known method such as ammonolysis, alcoholysis or hydrolysis.
Patent GB-217006-A (GB)
Title: Improvements in or relating to binocular magnifying glasses or like devices
IPC: G02B27/10
Filed: 1923-04-25
Abstract: 217,006. Wingate, G. H. April 25, 1923, Spectacles.-Binocular magnifying glasses combined with reflecting prisms contained in a casing are provided with a set of interchangeable wedge-shaped lenses or eye-pieces of different powers and with such different prism effects that the correct amount of convergence is attained with the particular magnification adopted. The prism effect varies inversely with the power of the lens. Two sets of reflecting prisms a, a<1>, are mounted in a casing b as shown so that the lenses c, mounted in push-in sockets are adjacent to one face of one prism and the outer face of the other prism is opposite a window e. The adjacent faces of the prisms are slightly inclined to one another. Instead of prism lenses, separate lenses and prisms may be used.
Patent GB-1530587-A (GB)
Title: Valves
IPC: F16K41/12
Filed: 1975-10-17
Abstract: 1530587 Valves DRESSER INDUSTRIES Inc 17 Oct 1975 [23 Dec 1974] 11204/78 Divided out of 1530586 Heading F2V A body 10 has inlet and outlet passages 14, 12 and a seat 18 for closure 20 placed between the passages and coaxial with a stem axis which intersects the inlet passage at an obtuse angle, the body having auxiliary passage means 78, 80, 84 to provide for reduced deflection of the flow path when the valve is open. The construction is associated with diaphragm sealed valves as described in the Specification 1,530,586.
Patent GB-1196553-A (GB)
Title: Improvements in sealed journal bearings
Inventor: HOPKINS SHIRLEY RUSSELL
IPC: F16C33/76
Filed: 1968-03-07
Abstract: 1,196,553. Rotary shaft seals. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 28 April, 1969 [7 March, 1968], No. 11273/68. Heading F2B. A bearing and sealing arrangement for a rotatable shaft 11 comprises a bearing disposed between two axially-spaced shaft seals 21, 24, means for applying barrier fluid, e.g. grease, to the space 40 between the seals, and means for detecting change in the barrier fluid pressure due to any leakage of the fluid past the seals. The bearing comprises ball bearings 12, 13 housed in a member 14a and spaced by a spacer 16 having a radial duct 16a. The seals 21, 24 are each formed by two sealing rings 21a, 21b and 24a, 24b and a backing ring 21c and 24c and the seal 24 is housed in a member 14b sealed to the member 14a by 0-rings 19. The duct 16a communicates with the space 40 and, via a duct 35, with a duct 36 containing a volume reducing member 36a and closed by a pressure transducer head 37. A venting duct 39 meets the duct 36 and is closed by a bleeder valve 38. Before use, the valve 38 is opened and grease is supplied to the space 40 through a nipple 42 and duct 41 until excess grease flows from the valve 38 which is then shut, the supply of grease being continued until the pressure in the space 40 reaches a predetermined value which is higher than that on the outer sides of seals 21 and 24. The transducer senses the grease pressure via gas trapped in duct 36 and in use, any leakage is detected by a fall in pressure. Leakage past the seal 21 may be collected in a catchpot 43; a similar catchpot may be provided behind the seal 24. In one application (not shown), the shaft 11 operates a valve used in transferring nuclear fuel elements, the arrangement then preventing leakage between radioactive gas and atmosphere.
Patent GB-863027-A (GB)
Title: Improvements in or relating to electrical apparatus for providing an electrical indication of the relative positions of relatively movable means
Inventor: WAYMAN CECIL JOHN
IPC: H03M1/00
Filed: 1957-04-05
Abstract: 863,027. Electric selective signalling systems. GENERAL ELECTRIC CO. Ltd. April 2, 1958 [April 5, 1957], No. 11280/57. Class 40 (1). In electric apparatus for providing an indication of the relative positions of a pair of relatively movable means the position of an inductive coupling means relative to a plurality of first electrical conductive paths is dependent upon the relative positions of said relatively movable means, so that at any one time the particular combination of said first conductive paths between which and a second conductive path there is at least a predetermined inductive coupling, is characteristic of the particular relative positions of said relatively movable means at that time. The actual apparatus described is similar to that described in Specification 863,029. A U-shaped ferromagnetic coupling-member 5a, 5b, Fig. 2, is fixed to a rotatable shaft 1 and arranged to embrace a set of 32 polepieces 8 which carry five code windings (wound as in Figs. 3a, 3b, not shown), only two, 9 and 10, being shown, and which also carry a winding 14 wound round every pole, and the arrangement is such that (a) the set of five code windings and the common winding 14 are only effectively inductively coupled at the point where they are embraced by the ferromagnetic coupling-means 5a, 5b, and (b) on each polepiece the combination of code windings which are wound in a positive sense is different from that on every other polepiece. In one form of operation an A.C. signal is applied to the common winding 14 and as a result a combination of inphase signals is produced on the code wires which corresponds to the angular position of the shaft 1. A second embodiment (Figs. 7 and 8, not shown) is adapted for manufacture by printed circuit techniques. Specification 863,028 also is referred to.
Patent GB-957263-A (GB)
Title: Improvements in indicator lights
IPC: F21S8/00
Filed: 1962-03-23
Abstract: 957,263. Panel indicator lights. McNAMEE INDUSTRIES PTY Ltd. March 23, 1962 [March 30, 1961], No. 11289/62. Heading F4R. [Also in Division G4] An indicator light assembly comprises a part to be secured to the rear face of a control panel and having compartments each to receive one of a plurality of light bulbs, each compartment or each of all but one of the compartments having a differently coloured light filter, and a lamp holder assembly securable to the part so that a bulb is positioned in each compartment, all the compartments opening into a conical recess leading to a single common aperture in the panel, the bulbs being symmetrically disposed to the aperture. In the form shown, a cylindrical body 12 is secured to the rear of a panel 10 having a window 11 and has a conical recess 16 facing the window. Three holes 15 in the body 12 receive bulbs 32 in lampholders 31 mounted on an assembly of insulating discs 25- 28 held apart by spacers. Each hole 15 is closed in front by a different coloured filter 20 although one filter may be colourless or omitted. The assembly is clamped together by a tube 24 having a head 29 and nut 30. A threaded rod 18 passes through the tube 24 and the body 12 to secure these together. The body 12 is secured to the panel by bolts 13. The lamps 32 are separately wired, the wires passing through hollow spacers 33. The whole assembly may be enclosed in a removable cover.
Patent GB-372914-A (GB)
Title: Improvements relating to stiffeners for boot or shoe uppers
IPC: A43B23/08
Filed: 1931-04-16
Abstract: 372,914. Boot &c. stiffeners. BECKWITH, F. N., 26, Claflin Road, Brookline, Massachusetts, 'J.S.A. April 16, 1931, No. 11297. Convention date, April 17, 1930. [Class 17 (ii).] A stiffener for boot or shoe uppers comprises a base of cheap coarse fabric impregnated with a stiffening material dispersed in water. Suitable materials are colloids, such as soluble gums, glue, pectin, alginates, &c. They are capable of repeated reversals between the solid and liquid phases in accordance with the amount of moisture present, so that stiffeners so impregnated are readily softened, before the lasting operation, by dipping in water. According to the invention, however, the stiffeners are, before lasting, dipped in an aqueous solution of a hardening reagent, the function of which is to render the colloid irreversible to the liquid phase when the stiffener has dried after lasting. The stiffener is thus not affected by wetting of the boot in wear. As hardening reagents, formaldehyde, tannic acid, chrome alum, &c., are referred to. The stiffening material is preferably combined with an inert, water-absorbent filler, such as magnesium oxide, and with a substance of hygroscopic character, such as glycerine. The stiffener is preferably impregnated under pressure. In a modification, the hardening reagent is combined, as a dry powder, with the previously-impregnated and dried stiffener. The Specification as open to inspection under Sect. 91 (3) (a) states that the stiffening medium with or without incorporated unwoven fibrous materials may be formed into sheets, from which the stiffeners are cut. This subject-matter does not appear in the Specification as accepted.
Patent GB-238277-A (GB)
Title: Improvements in devices for opening tins, cans, cartons and the like
IPC: B67B7/46
Filed: 1924-05-07
Abstract: 238,277. Watson & Co., Ltd., A., and Mitchell, J. D., May 7, 1924. Opening by cutting,-A tin opener of the kind described in Specification 171,262 is provided with a third jaw d cranked upwardly at d<2>, its free end being turned down to form a hooked part d<3> adapted to engage over the rim of the tin and swing as the fulcrum about which the opener operates. The third jaw may be pivotally secured to the handle at d<1> as shown, or may be fixed thereto.
Patent GB-372920-A (GB)
Title: Improvements in or relating to tip-up seats
IPC: A47C7/56
Filed: 1931-04-18
Abstract: 372,920. Folding seats. TUBE PRODUCTS, Ltd. and UPTON, S., Popes Lane, Oldbury, Birmingham. April 18, 1931, No. 11514. [Class 52 (ii).] A tip-up seat a is pivoted at b to a tubular frame l, m and is connected to the swinging back d by a link g pivoted at j to the seat at a point above the pivot b and at h to the back d, or a downward extension thereof, below its pivot e so that when the seat is turned down the back is given a backward inclination. A projection k on the seat may bear against the lower edge of the back forming a rigid stop.
Patent GB-908024-A (GB)
Title: Method of producing citric acid by fermentation
IPC: C12P7/48
Filed: 1961-03-29
Abstract: Citric acid is prepared by a submerged vegitative fermentation procedure wherein a carbohydrate medium is inoculated with a citric acid-producing strain of a fungus, said carbohydrate medium containing nutrients for said fungus, and wherein a nitrogen nutrient capable of furnishing ammonium ions is added to the fermenting medium after development of citric acid-producing mycelia.  The nutrients originally present may also contain nitrogen.  It is desirable to add the nitrogen nutrient at a point in the fermentation cycle near where the rate of production of citric acid begins to decrease, or alternatively the nutrient may be added throughout the course of fermentation once the citric acid-producing mycelia have developed. The quantity of nutrient added is generally such that the fermentation broth contains about 50 to 5000 parts per million of nitrogen.  Examples describe the fermentation of sugar (purified Cuban high-test molasses) or glucose containing iron, potassium acid phosphate, magnesium sulphate, calcium chloride, copper sulphate pentahydrate, anhydrous zinc sulphate and ammonia, ammonium carbonate or ammonium hydroxide as initial nutrients, using Aspergillus niger Strain No. 139 as the fermenting agent and ammonia, ammonium carbonate or ammonium hydroxide as the added nutrient. Comparative experiments are described wherein no nitrogen nutrient is added after commencement of fermentation. Specifications 653,808 and 669,733 are referred to.
Patent GB-487536-A (GB)
Title: Improvements in and relating to apparatus for producing mixtures of gas and air for combustion
IPC: F23D14/62
Filed: 1937-04-23
Abstract: 487,536. Gas burners.INTERNATIONAL HEAT ECONOMY BUREAU, Ltd. (Gasfeuerungs-Ges.) April 23, 1937, No. 11628. [Class 75 (i)] In a mixing device for gas and air or other supporter of combustion, one of the media is supplied through a plunger 11 to the mixing- chamber 2 in a longitudinal direction and the other through a snail 4 and tangential ports 6 in a hollow cylinder 5, the plunger being movable in its seat 13 without altering the area of the gas and air ports for varying the length of the flame in the adjacent combustion chamber 8. In a modification, the snail is lined with refractory material and the cylinder 5 is omitted. The cylinder 5 may be integral with, or detachably fitted in, the snail, and the ports 6 may be chamfered in the axial direction. The plunger may be provided with a pin 22 engaging a slotted rib 23 in the T-piece 9 and operated by a screwed spindle 15 and a handwheel 14. When using gases of low calorific. value, such as blast furnace gases, the plunger may be withdrawn entirely from its seat to provide a larger inlet for the gas, there being no need for varying the flame length. Specification 243,222,[Class 75 (i)], is referred to.
Patent GB-258813-A (GB)
Title: Improvements in and relating to building constructions comprising encased metal girders
IPC: E04B1/94
Filed: 1925-11-05
Abstract: 258,813. Williams, G. B. Nov 5, 1925. Girders; joist floors.-Metal girders in building constructions are fireproofed by means of a preformed channel member 51 adapted to embrace the lower part of the girder 52 and extend upwardly therefrom, wires 55, preferably embedded in the channel member, being employed to support temporarily the member 51 from the girder. The member 51 is formed of concrete &c. the wires 55 being embedded therein during moulding, and longitudinal depressions 54 are provided on the inner vertical faces of the channel. The space between the girder and the channel is filled with concrete 56 up to the level of the upper faces of the channel member. The concrete so cast, together with the upper faces of the channel member, forms a support for T-shaped slabs 1e forming a floor. The webs of the slabs 1e extend upwardly, and concrete is cast between the webs and extends between the ends of such slabs and the girder 52, and may also cover the upper faces of the webs.
Patent GB-1161731-A (GB)
Title: Process for the manufacture of an amorphous copolymer from ethylene and a higher a-olefin in suspension
IPC: C08F210/00
Filed: 1968-03-11
Abstract: 1,161,731. Copolymerizing olefins. FARBWERKE HOECHST A.G. 11 March, 1968 [10 March, 1967], No. 11760/68. Heading C3P. Copolymers of ethylene, an alpha-olefin of the formula R-CH=CH 2 , where R is an aliphatic branch or straight-chain hydrocarbon radical containing less than seven carbon atoms, and optionally a hydrocarbon with two non- conjugated double bonds in an amount such that the polymer obtained has an iodine number of at most 50, are made by copolymerizing the monomers in the presence of (1) as dispersion medium an aliphatic halohydrocarbon which does not dissolve the copolymer under the reaction conditions, (2) a catalyst comprising a vanadium compound and an organoaluminium compound both soluble in the dispersion medium and (3) 0.0001% to 10% by weight, calculated on the dispersion medium, of a finely divided inert solid organic polymer of particle size 0-005 to 300 microns which does not inhibit the catalyst activity, and is insoluble in the dispersion medium and in the precipitating polymer. The copolymerization is carried out at a pressure of 1 to 30 atmospheres, a temperature in the range of - 30‹ C. and +50‹ C., with stirring or mechanical agitation. Specified organic polymers are polyethylene, polypropylene, polybutene-1, poly-3-methylbutene-1, polypentene-1, poly - 4 - methylpentene - 1, polymers of C10 to C24 olefins, copolymers of the above olefins, polyacrylonitrile, polyvinyl chloride, polyethylene glycol terephthalate, polycaprolactam, polyvinyl fluoride, polytetrafluoroethylene, polyvinylidene fluoride, condensation products of formaldehyde with phenols or amines, and pulverized coconut shells. Suitable dispersing media are 1,2-dichloropropane, 1,2,2 - trichloro - 1,1,2 - trifluoroethane, ethylene chloride, 1,2 - dichloroethane and methylene chloride. The optional third component may be 1,4-cis-hexadiene, 1,4-transhexadiene, alkenyl-norbornenes, alkylidene-norbornenes, and dicyclopentadiene. In the examples are copolymerized ethylene and propylene, ethylene, propylene and methylbutenyl norbornene, and ethylene, propylene and 1,4- cis-hexadiene.