baber/WOPTO huggingface dataset:
Patent GB-426175-A (GB)
Title: Improvements in the separation of para-cresol from liquid phenolic mixtures containing it
IPC: C07C39/07
Filed: 1934-08-17
Abstract: Paracresol is separated from liquid phenolic mixtures containing it by forming a solid addition compound of p-cresol and anhydrous oxalic acid, separating this from the phenolic residue, and resolving the addition compound into its constituents by the action of heat in the absence of water, and below the decomposition temperature of oxalic acid.  The resolution of the addition product is preferably carried out in a non-aqueous, inert liquid solvent for p-cresol, and a preliminary resolution of the phenolic addition product may be carried out at a temperature which will decompose the less stable cresol-oxalic products, but not the p-cresol-compound.  According to an example, 216 kilos of mixed para, meta, and ortho cresols are added slowly to a boiling mixture of 77 kilos anhydrous oxalic acid and 280 litres of naphtha of boiling point 90--100 DEG  C.  After a short refluxing and allowing to stand for six hours, 233 kilos of crystalline double compound are obtained which may be resolved by boiling with 1500 litres of fresh solvent and filtering, the process being repeated three times.  The solid residue consists of anhydrous oxalic acid available for re-use, while the filtrate yields 127 kilos of p-cresol of 92 per cent purity.  If a preliminary resolution is carried out at a lower temperature and the filtrate rejected, the subsequent filtrates yield p-cresol of 96--98 per cent pints.  The addition product may also be resolved by distilling, or with the aid of the vapours of the solvent referred to, which may be superheated. Specifications 286/02, [Class 2], and 107,961, [Class 2 (iii)], are referred to.
Patent GB-1066238-A (GB)
Title: Shovelling apparatus
IPC: E02F9/20
Filed: 1964-06-09
Abstract: 1,066,238. Controlling vehicles. WAIN-ROY CORPORATION. June 9, 1964 [June 13, 1963], No. 23829/64. Heading B7H. [Also in Divisions E1 and F1] In a shovel excavator having shovel assemblies mounted at either end.of the self-propelled chassis of the excavator is provided a pair of pedals 40, 42 in front of and a pair of pedals 48 behind a seat 30 for the operator of the excavator, each pair of pedals being for the selective control of the transmission system of the excavator to provide forward and rearward driving of the chassis. The seat 30 and steering column 56 are independently pivotal about a common vertical axis for the operator to face forwards or rearwards to operate a desired shovel assembly and/or to drive they chasers in an appropriate direction. The pedals 40, 42, 48 are connected to rods 44, 50 coupled to a bracket 120, that can rotate according to the extent of actuation of the pedals together or individually about both a vertical axis and a horizontal axis to cause first through an hydraulically actuated linkage reversal of the drive to the ground wheels of the chassis and then through another linkage acceleration of the prime mover of the excavator. Associated with the rear pair of pedals 48 is a hand lever 60 that can depress both pedals simultaneously to cause the transmission to the ground wheels to be neutralized whilst the prime mover is accelerated for powering the shovel assemblies. High and low output pumps 68, 66 are driven an tandem from the prime mover. The high output pump 69 is connected to a valve chest 76 from which pressurized fluid can be supplied as desired to the front shovel assembly or to the valve chest of the controls of the rear shovel assembly or returned to the reservoir 70 of the hydraulic circuit of the excavator. The low output pump 66 is connected to a valve unit 86 controlled by the hand lever 60 by which the output of the pump may be supplied to the hydraulic power steering of the road wheels of the chassis or in combination with the output of the pump 68 to the rear shovel assembly through the valve chest of the controls of said assembly.
Patent GB-714603-A (GB)
Title: Improvements in or relating to boiling vessels
IPC: A61L2/06
Filed: 1951-10-12
Abstract: 714,603. Boiling - vessels. SLATER & CO. (ENGINEERING), Ltd., J., and WILLIAMS, T. W. Oct. 13, 1952 [Oct. 12, 1951], No. 23840/51. Class 66 [Also in Group VI] A boiling-vessel 1 has a lid 2 which is provided with a passage or passages for the continuous flow therethrough of water or other cooling medium for the purpose of cooling the under surface of the lid and which is pivoted on trunnions or other type hinges with passages there through for the cooling medium As shown, the cooling medium is passed into the lid 2 through hinge pin 3 and out through hinge pin 4. The hinge pins 3 and 4 are secured to the pan 1 by means of hinge arm 5 and to the lid 2 by hinge arm 6. Hinge pins 3 and 4 and hinge arm 6 are apertured to allow the cooling medium to pass into and out of the lid 2. The lid may be off boxed, cased, jacketed or padded form or constructed with a pipe coil attached to it.
Patent GB-412794-A (GB)
Title: Improvements in or relating to television systems
IPC: H04N3/38
Filed: 1933-08-28
Abstract: 412,794. Television. BULLIMORE, W. R., and BEDFORD, L. H., Cossor Works, Highbury Grove, London. Aug. 28, 1933, No. 23879. Drawings to Specification. [Class 40 (iii).] In a television transmitting apparatus in which a continuously moving cinematograph film is scanned by an electrically-controlled scanning device, a controlling wave of the picture frequency is applied to the scanning device to compensate for the movement of the film. When the scanning is effected by a cathode ray oscillograph in a direction perpendicular to the motion of the film, the compensation is effective to avoid the scanning of the bar or space between successive frames. In this case a saw tooth wave is applied to one of the plates to produce a succession of scanning lines which cover an area equal or equivalent to that between successive picture frames. When the film is scanned parallel to its direction of motion, a saw tooth deflecting potential is applied to the second of the plates which control the movement of the scanning beam parallel to the motion of the film, so that successive scanning lines are displaced in the direction of motion of the film. The apparatus may be controlled so that each alternate picture or every third picture of the film is scanned. The details are generally similar to those described in Specification 399,469.
Patent GB-1457143-A (GB)
Title: Multiple dye stream laser
IPC: H01S3/213
Filed: 1974-05-29
Abstract: 1457143 Lasers COHERENT RADIATION 29 May 1974 [30 May 1973] 23895/74 Heading H1C In an optically pumped dye laser, the range of radiative wavelengths is extended by the provision of a turret mechanism which selectively introduces any one of a range of different dyes into the lasing region. The operative dye is in the form of an unsupported flat stream 20, Fig. 1, projected between an input nozzle 34, Fig. 3, and a collector 36, the dye stream being passed obliquely across the optical axis of a laser resonator 12, 14, 16 and pumped by the focused beam of an argon laser 24. A tuning mechanism 22 is included in the resonator. Dye selection is effected by rotating a turret mechanism of ganged input and exit ports 44-54 into appropriate alignment with the nozzle 34 and collector 36, each operative pair of ports being used to pass a different dye provided by a module 38, 40, 42 which includes a pump, filter and a dye reservoir. A heat exchanger may be included in each dye circulation system. To prevent cross-contamination when a dye is changed by rotating the turret mechanism, the nozzle-and collector are provided with a drainage arrangement, Figs. 6 and 9 (not shown). Suitable dyes giving an overall tuning range of 5300Š to 7000Š are sodium fluorescein, Rhodamine 6G, Rhodamine B and cresyl violet, the dye carrier being ethylene glycol in each case.
Patent GB-984373-A (GB)
Title: Improvements in and relating to tubular heat exchangers
Inventor: EDMINSON JOHN ALFRED
IPC: F28F9/02
Filed: 1962-06-21
Abstract: 984,373. Tube-type heat exchangers. C. A. PARSONS & CO. Ltd. April 19, 1963 [June 21, 1962], No. 23982/62. Heading F4S. The header 5 of a tubular heat exchanger is formed with a double wall 4a, 4b the wall 4a being fixed at one end to the heat exchanger casing 1 and the wall 4b being fixed at one end to the tube plate 3, and both walls being joined together, e.g. by means of flanges 9, 10, at their ends remote from the tube plate, and at least one of the walls 4a (as shown) and/or 4b having flexibility in the direction of the length of the tubes 2, thus permitting relative expansion between the tubes and the casing. Steam passing through the casing is condensed by cooling water passing through the headers and tubes 2. The tube plate shown is double-walled to permit introduction of condensate through a pipe 11 at a pressure higher than that of the cooling water to prevent leakage of impure water into the condensing steam. In the form shown, the plate 4b is rigid and packing members 12 are disposed around its inner edge to support the tube plate within the casing.
Patent GB-1398709-A (GB)
Title: Building panel
IPC: B28B11/04
Filed: 1972-05-22
Abstract: 1398709 Laminates BPB INDUSTRIES Ltd 12 July 1972 [12 July 1971 22 May 1972] 32635/71 and 23991/72 Heading B5N [Also in Division E1] A building board comprising a gypsum core 10 paper or plastics facing sheets 12 and a reinforcing strip 23 along at least one edge is manufactured by cutting a groove in the edge of the core, placing the reinforcing strip against the prepared edge and bending the facing sheets over the strip and adhering them thereto. The reinforcing strip may be T-section (as shown), or U-section or Y-section or stepped U- section. The edges of the board may be tapered. The edges of the boards are cut by rotary saws and guide plates may be provided to hold back the paper sheets whilst a disc tool presses the reinforcing strip into position. A hot melt adhesive is applied and a pressure roller folds down the edges of the sheets.
Patent GB-1013410-A (GB)
Title: Terminals for heavy current conductors
IPC: H01R4/36
Filed: 1964-06-11
Abstract: 1,013,410. Cable and wire terminals. THEODOR WUPPERMANN G.m.b.H. June 11, 1964 [July 2, 1962], No. 24343/64. Heading H2E. A terminal 2 for the reception of a multicore cable 1, which is pressed into the cavity 4 by the screw 3 is supplied with coolant such as water from the entry hole 5. The screw 3 is sealed with mastic and grips the cable 1 with or without the interposition of a suitably shaped pressure plate; which is prevented from turning. The terminal 1 is sealed to a hosepipe 6 which is connected to another terminal at the other end of the cable where the coolant is discharged or continues in a zig-zag path through several cables in succession. The terminal 1 can be secured to a rigid cable connector 9 by means of bolt 8.
Patent GB-1099865-A (GB)
Title: Benzoazinediones and germicidal compositions made therewith
IPC: C07D285/15
Filed: 1966-06-01
Abstract: Detergent compositions comprise at least one germicidal benzoazinedione of the general formula <FORM:1099865/C4-C5/1> wherein X and X1 are chlorine, bromine, iodine or a trifluoromethyl radical, n is an integer from 0 to 3, subject to the proviso that X or X1 represent at least one and not more than two trifluoromethyl radicals, Y is sulphur or oxygen and Z is sulphur or carbon, together with a soap and/or detergent.  As the detergent ingredient are specified cationic detergents, such as dimethyl stearamidopropyl-2-hydroxy-ammonium dihydrogen phosphate, anionic detergents such as alkali metal soaps of hydrolysed natural or synthetic glycerides of fatty and similar acids, ampholytic detergents, such as polyoxypropylene polyoxyethylene condensates, and natural detergents such as starches, vegetable gums and mixtures thereof.  The total weight of the benzoazinediones of the above general formula in the compositions is preferably from 0.001 to 5.0 per cent of the total weight of the composition.ALSO:Novel benzoazinediones of the general formula <FORM:1099865/C2/1> wherein X and X1 are chlorine, bromine, iodine or trifluoromethyl, n is an integer from 0 to 3, subject to the proviso that X or X1 represent at least one and not more than two trifluoromethyl groups, Y is sulphur or oxygen and Z is sulphur or carbon, are prepared by reaction of a substituted acetylanilide with thionyl chloride, phosgene or ethyl chloroformate.  Pharmaceutical compositions comprise at least one benzoazinedione of the above general formula in admixture with an inert pharmaceutical diluent.ALSO:Paper pulp is sanitized by impregnation of germicidal benzoazinediones of the general formula:- <FORM:1099865/D1-D2/1> wherein X and X1 are chlorine, bromine, iodine or a trifluoromethyl group, n is an integer from 0 to 3, subject to the proviso that X or X1 represent at least one and not more than two trifluoromethyl groups, Y is sulphur or oxygen and Z is sulphur or carbon.  The total weight of said benzoazinediones is preferably from 0.01 to 0.5 per cent of the total weight of the impregnated material.ALSO:Fibrous materials such as cotton gauze, dressings, textiles and paper pulp are sanitized by impregnation of germicidal benzoazinediones of the general formula <FORM:1099865/A5-A6/1> wherein X and X1 are chlorine, bromine, iodine, or a trifluoromethyl group, n is an integer from 0 to 3, subject to the proviso that X or X1 represent at least one and not more than two trifluoromethyl groups, Y is sulphur or oxygen and Z is sulphur or carbon.  The total weight of said benzoazinediones is preferably from 0.01 to 0.5 per cent. of the total weight of the impregnated material.
Patent GB-462013-A (GB)
Title: Improvements in or relating to identification marking in laundry and like processes
IPC: B41K3/42
Filed: 1935-08-31
Abstract: 462,013. Ink. WILLIAMS, W. P. (National Marking Machine Co.) Aug. 31, 1935, No. 24400. [Class 146 (iii)] [Also in Group XVI] A marking-ink for use in marking fabrics, e.g. those to be subjected to laundering-operations, has a body material which is readilyremovable by washing, and a colouring- material which remains in the fabric but which can be caused to fade and become invisible. This may be effected by exposing to ultra-violet or other light or to a bleaching-action by means of a gas such as chlorine or ozone, and the reaction may be facilitated by heat, e.g. in the form of steam. Dyes such as methylene blue, Victoria blue, or methylene grey are used when ultra-violet light is employed to cause fading, and Erie garnet B can be caused to fade by the use of chlorine. In an example, methylene blue is mixed with diethylene glycol, ethylene glycol monomethyl ether, gum arabic, and water.
Patent GB-584090-A (GB)
Title: Improvements relating to helmets and similar head coverings
IPC: A42C5/02
Filed: 1944-12-06
Abstract: 584,090. Sweat bands for hats. HOBSON & SONS (LONDON), Ltd., and LILLY, C. V. Dec. 6, 1944, No. 24435. [Class 63] A sweat band b is detachably supported in a tropical helmet in spaced relation to the crown by short lengths of ladder tape e at spaced intervals, one longitudinal side of each of which is secured at one side to a stiffening band a to which the band is secured and the other by means of bifurcated fasteners f to the crown c.
Patent GB-744646-A (GB)
Title: Mechanism for separating water from sand, gravel and such like solid or semi solid material
Inventor: SOUTHALL THOMAS JOSEPH
IPC: B01D33/00
Filed: 1953-09-04
Abstract: 744,646. Rotary filters. HARDY & PADMORE, Ltd. Aug. 9, 1954 [Sept. 4, 1953], No. 24462/53. Class 46. In a mechanism for separating water from sand, gravel and such like solid or semi-solid material comprising a rotatable bucketed wheel having side plates a and transverse imperforate plates a<SP>1</SP> forming the buckets, a perforated radially directed dividing plate a<SP>2</SP> is disposed in each bucket in such a manner that upon the partially dewatered material being deposited into the compartment a<SP>3</SP> from the shoot b, water gravitates through the perforated plate a<SP>2</SP> into the complementary compartment a<SP>4</SP>, which water is collected in a shoot c and the sand, gravel or other material subsequently deposited in a hopper d during the rotary operation of the wheel. The mechanism incorporates an electric vibrator e such as that disclosed in Specification 734,777.
Patent GB-1059017-A (GB)
Title: Improvements relating to optical printing systems
IPC: G02F1/31
Filed: 1965-06-10
Abstract: 1,059,017. Photo-composing machines. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 10, 1965 [June 26, 1964], No.24522/65. Heading B6W. [Also in Division H4] An optical deflecting means comprises three electro-optical elements (45, 47, 49) each comprising an electro-optically active crystal (e.g. KD 2 PO 4 ) (45a &c.) between two transparent electrodes (45b, 45c &c.). and three birefringent elements (46, 48, 50) having lengths in the ratio 4: 2:1. A light source (1) is rendered parallel by a lens (2), passes through an opaque plate (3) with transparent characters (4), a lens (5), a polarizer (6), and two groups (101 &c.), (201 &c.) of deflection elements, the first group producing 0 to 7 units of vertical displacement and the second group horizontal displacement, so that the part of the beam containing a selected character passes through an aperture (8) in a diaphragm (9). The beam is reflected to the left-hand end of a third group of deflection elements (301 &c.), of lengths proportional to 32:16: 8: 4: 2: 1, whereby it is displaced horizontally to a desired one of 64 positions on a film (14). After printing a line, the film is displaced vertically, or alternatively a further group of vertical deflection elements is provided so as to print a complete page without moving the film. Elements for displacement by fractions of a unit can be used for subscript, proportional letter spacing &c. The plate (3) may carry component elements of Sanskrit or other characters.
Patent GB-204867-A (GB)
Title: Improvements in and relating to the driving gear and brakes of motor vehicles
IPC: F16H15/10
Filed: 1922-09-11
Abstract: 204,867. Swain, F. E. Sept. 11, 1922. Variable-speed friction gearing. - The two coned discs A, B, mounted on shafts U, V connected to the rear wheels are thrust outwards by a compressed spring between them and are driven by the rollers C, D on the splined shafts E, F. Reversed driving is obtained through toothed gearing.
Patent GB-1154731-A (GB)
Title: Improvements in or relating to methods and apparatus for Shaping Bodies by Pressure
Inventor: FUCHS FRANCIS JOSEPH
IPC: B04C1/00
Filed: 1966-06-02
Abstract: 1,154,731. Extruding; upsetting; making waveguides. WESTERN ELECTRIC CO. Inc. 2 June, 1966 [4 June, 1965], No. 24536/66. Headings B3A, B3H and B3P. A workpiece 24 is shaped at least at its end by pressure sufficient to produce plastic flow. In the production of a waveguide, a flange 70 is formed on the end of a metal tube 24 by disposing it around a mandrel 16 attached to a ram 14 in a chamber 12 filled with hydraulic fluid, and moving the ram downward to apply hydrostatic pressure 64, 72 to the workpiece and extrude it through a die orifice 22 into a die cavity. The latter is formed by an annular member 46 and a back-up die 38 supported by hydraulic fluid 34. A bore 44 is provided to guide the mandrel. During extrusion and upsetting of the flange the back-up die 38 moves downwardly expelling fluid through relief valve 62. The die orifice may be provided in a separate extrusion die disposed at the bottom of chamber 12. In a modification, Fig. 3 (not shown) the back-up die (80) is supported on a spherical seating. The flange may be of round or rectangular shape.
Patent GB-843727-A (GB)
Title: Improvements in or relating to bridges
IPC: E04B1/24
Filed: 1958-08-01
Abstract: 843,727. Bridges. HEDSTROM, A. Aug. 1, 1958 [Aug. 15, 1957], No. 24903/58. Class 20(1) A substructure for a bridge comprises at least two spaced parallel longitudinal members each comprising a plurality of longitudinal units 1 which are joined together by tongues 4 engaging recesses 5 and transverse members 2 which fit in between the recesses 5 and have holes which align with holes in the tongues and recesses to house a bolt 3 which thus joins the three members together. The transverse members may be diagonally tied by stays 8.
Patent GB-1191304-A (GB)
Title: Improvements in or relating to Electrical Musical Instruments
Inventor: OLIVER ROY EDWARD
IPC: G10H3/00
Filed: 1967-05-30
Abstract: 1,191,304. Transistor frequency divider and pulse circuits. ELECTRO-VOICE Inc. 30 May, 1967, No. 24951/67. Heading H3T. [Also in Division G5] Fig. 3 shows the electrical circuits used to generate subharmonics of the signals from a pick-up attached to a musical instrument. An output signal from the amplifier 76 is fed to a wave-shaping circuit 147 comprising a signal averaging filter and D.C. clamp circuit, and then through an amplifier 100 to a Schmitt trigger 102, giving a square-wave output which is differentiated to supply negative pulses to a bi-stable multivibrator 104, arranged to cycle at half the input frequency and hence producing an electrical signal one octave below the signal from the pick-up. The multivibrator output is fed to an amplifier 90 via a tone filter 246 and volume control 256. The multivibrator 104 is provided with a gate circuit 258, to introduce a time delay in the subharmonic system, a transistor 260 being connected in series with the ground return of transistors 210, 212. The Schmitt trigger output is rectified to give a positive D.C. potential which builds up with time and is applied to the base of transistor 260 which conducts when the D.C. potential exceeds a threshold value.
Patent GB-599539-A (GB)
Title: Clamp for master sheets of printing machines
IPC: B41F27/12
Filed: 1945-09-26
Abstract: 599,539. Printing-surfaces. ADDRESSOGRAPH-MULTIGRAPH CORPORATION. Sept. 26, 1945, No. 25009. Convention date, Nov. 8, 1944. [Class 100 (ii)] A clamp for holding a master sheet on a drum comprises a movably mounted clamping bar in a gap having a surface leading from the periphery of the drum to the inner end of a ledge in the gap, there being a re-entrant angle of less than no degrees between the gap surface and the periphery of the drum, and a re-entrant angle of substantially 90 degrees between the gap surface and the ledge, and the clamping bar is adapted to bear against a master sheet bent at the apices of the reentrant angles, and is provided with means to maintain it in a seated position and a mechanism to move it outwardly. The drum 10 has a gap 11 in which is a ledge 12 and surfaces 16, 17 at right-angles thereto. One leaf 20 of a continuous plane hinge is screwed to the surface 17 by screws 24, the other leaf 21 being free and adapted to bear against the ledge 12 or be tipped at an angle thereto. The leaves 20, 21 are connected by a rod 22, and extend the length of the drum, the leaf 21 overlapping either end of the drum. The leaf 21 is stiffened by a clamping bar, not shown, rivetted thereto and extending the length of the drum. A lever 30 is rivetted on to one end of the leaf 21, and on pressing the inner end of the lever the leaf is tilted to the open position, when a sheet A is inserted until its edge rests against the ears of the hinge, the extension 32 of the lever acting as a side guide. The leaf 21 is then lowered against the ledge 12 by the action of a spring 35 fixed at 36 to the end plane of the drum, whereby the sheet A is clamped between the leaf and the ledge. For use with perforated sheets, hooks 28 are provided on the clamping bar, the perforations being passed over the hooks and the leaf and ledge not in this case being utilised. A second spring at the other end of the drum is attached to the hinge leaf and the end plane. In the gap 11 there is also mounted a clamp T for the trailing edge of the sheet, preferably of the type described in Specification 499,809. Specification 422,738 also is referred to.