baber/WOPTO huggingface dataset:
Patent GB-175150-A (GB)
Title: Improvements in means for cooling water, particularly the cooling water of air compressors
IPC: F01P7/14
Filed: 1920-12-14
Abstract: 175,150. Globe Pneumatic Engineering Co., Ltd., Andrew, J. D., and Hughes, J. Dec 14,1920. Cooling liquids.-Heated water from an aircompressor or similar apparatus flows into a tun-dish 2, open at the top so that a certain amount of air is drawn in with the water, to effect a preliminary cooling thereof. The water then passes to an inverted tun-dish 4 and escapes through slots 10 therein, into a container 5, being deflected so as to pass up the inner face of the container and then falling through perforations 12 in a corrugated run 11. The container 5 is jacketed to provide for the circulation of cooling- water, which enters by a pipe 8 and escapes over the rim 9 of the jacket 6, mixing with the cooled water and falling in fine streams to a tank beneath the apparatus. The extended surface of the stream of water exposed to the air produces further cooling. A pipe 13 is provided for draining the inner container when necessary. In a modification, Fig. 4, the tun-dish 4 is divided into two portions 4<a>, 4b by a partition 4<1>. The liquid to be cooled is received in the lower portion 4<b>, passing through the slots 10 and up the passage 15, and cooling-liquid passes from the outer jacket 7 into portion 4a and overflows as in the other construction. A number of stepped rims may be provided at varying heights around the outer container 6 to break up the streams of water and to assist the cooling.
Patent GB-975504-A (GB)
Title: Improvements in or relating to new sensitizing dyes and sensitized photographic emulsions
Inventor: DEPOORTER HENRI
IPC: C09B23/10
Filed: 1959-10-13
Abstract: 1-Ethyl -2- methyl -5- sulphamyl-benzimidazole is prepared by converting 3-nitro-4-chlorobenzene sulphonyl chloride to the corresponding sulphonamide with ammonium hydroxide at 0 DEG C. refluxing this with ethylamine to give 3-nitro-4-ethylamino-benzene sulphonamide, reducing the nitro group and refluxing the product with acetic acid and hydrochloric acid to effect ring closure. The product is quaternized by heating with ethyl iodide. If the ammonium hydroxide is replaced by aqueous ethylamine in the above reaction followed by heating without addition of further ethylamine, 1-ethyl -2- methyl -5- ethylsulphamylbenzimidazole is obtained. This product is quaternized by heating with ethyl iodide, ethylene bromohydrine, N-acetyl -4- bromo-butanesulphonamide or propylene sulphate, the latter giving a betaine salt.  1;3-Dimethyl -2- methylmercapto-5; 6-dichlorobenzimidazolium iodide is prepared by refluxing 2-methylamino-4; 5-dichloro-aniline with CS2 in alcoholic potassium hydroxide to give 1-methyl-2-mercapto-5; 6-dichlorobenzimidazole, heating this with dimethyl sulphate and quaternizing the product with methyl iodide.  Specifications 904,332 and 955,961 also are referred to.ALSO:Cyanine and merocyanine dyes are described which contain a benzimidazole nucleus substituted in the 5- or 7-position by a sulphamyl or N-ethylsulphamyl group.  Examples are given of the preparation of carbocyanine dyes by condensing the appropriately substituted 2-methyl-benzimidazolium salt with ethyl ortho formate to give a symmetrical dye, or with heterocyclic bases (such as benzthiazoline or benzoxazoline) having a reactive b -phenyliminoethylidene group or with cyclammonium salts such as 2-(b -acetanilidovinyl)-3-ethyl-thiazolium bromide or 1 : 3-diethyl-2-[b -(p-tolusulphoanilido) vinyl] - 5 - chlorobenzimidazolium chloride to give unsymmetrical dyes.  An unsymmetrical cyanine dye is similarly prepared from 1 : 3 - diethyl - 2 - methyl - 5 - ethylsulphamylbenzimidazolium iodide and 1 : 3-dimethyl - 2 - methylmercapto - 5: 6 - dichlorobenzimidazolium iodide.  A merocyanine dye is obtained from the above 5-ethylsulphamylbenzimidazolium iodide and 3-ethyl-5-acetanilidomethylidene rhodanine.  The 1-nitrogen atom of the sulphamyl-substituted benzimidazole nucleus may carry a b -hydroxyethyl or 4-(N-acetylsulphonamido)-butyl substituent or a propyl-o -sulphate group in anhydro form. Specifications 904,332 and 955,961 also are referred to.
Patent GB-445100-A (GB)
Title: Improvements in or relating to spectacle frames
IPC: G02C5/12
Filed: 1935-12-20
Abstract: 445,100. Spectacles. NITSCHE & GUNTHER OPTISCHE WERKE AKT.-GES., Rathenow, Germany. Dec. 20, 1935, No. 35330. Convention date, March 22. [Class 97 (i)] Means for attaching a metal plaquet arm a to the rim d of a non-metallic spectacle frame comprises a T- shaped end-piece b let into the rim, and a plate c fitted into a groove in the rim or secured to the edge thereof. The plate c may have pins engaging the material of the rim, or it may be screwed to the rim. In Fig. 3, the arm a is integral with a plate g which is separate from the members b, c and is fastened to the member c by screws e so that the plaquet arm can be readily exchanged.
Patent GB-399344-A (GB)
Title: Improvements in or relating to the troughing of jigging conveyors
IPC: B65G27/00
Filed: 1932-12-14
Abstract: 399,344. Jigging conveyers. FINLAY, R. P., Lincombe, Llanwern, near Newport, and FINLAY CONVEYOR CO., Ltd., Transporter Bridge, Newport, Monmouthshire. Dec. 14, 1932, No. 35388. [Class 78 (i).] The delivery section 1 is supported from an under structure 2 by four rock links 3. The upper pivot 4 of each link 3 is engaged with any one of a series of apertures 9 in angle lugs 6 on the underside of the section 1, and the lower pivot 5 is engaged with any two of the series of apertures 8, 10.
Patent GB-1518145-A (GB)
Title: Clamping arrangements
IPC: F16B2/10
Filed: 1976-08-31
Abstract: 1518145 Nuts; washers MOLINS Ltd 31 Aug 1976 [28 Aug 1975] 35484/75 Heading F2H [Also in Division E2] Washer 12 under tightening nut 14 of a clamp is prevented from sliding down spindle by friction ring 16, Fig. 2, or in the modification shown in Fig. 3, by being held captive to the nut by circlip 22.
Patent GB-463751-A (GB)
Title: Improvements in or relating to power transmitting mechanisms for motor vehicles
IPC: F16D3/00
Filed: 1935-12-23
Abstract: 463,751. Yielding couplings. BARDET, A. Dec. 23, 1935, No. 35528. [Class 80 (ii)] A toothed rim 12 is yieldingly connected to the hub 14 of an electric locomotive road-wheel, by a group of torsion-bars 20, arranged parallel to the axis of the rim and wheel, and secured at one end, 35, to the hub, and at the other, to rocking-arms 24, journalled in the hub, and having driving engagement with the toothed rim 12. As shown, the arms 24 constitute toothed segments engaging teeth 28 inside the rim 12. In a modification, Figs. 4 and 5 (not shown), the arms have cylindrical ends each engaging a single recess in the rim. The possible yield is limited by sleeved bolts 42 engaging, with play, in recesses 44 in the rim 12, these bolts serving to hold together the side-plates 29, 30, which support and journal the rim 12. As shown, the torsion-bars 20 have coned ends 35, retained in circumferentially adjusted positions in seatings in the hub by washers 38 and bolts 39, which bolts, to facilitate withdrawal of the bars from their serrated fastenings 25 in the arms 24, can be removed and screwed into tapped holes 37 in the bars. Alternatively, the bars may have plain flanges directly bolted to the hub. In the modification above referred to, the rim 12 is separate from the member, e.g. 13, which engages the arms 24, and is dovetailed between two additional bolted sideplates, one of which carries the arm-engaging recesses. The rocking-arms 24 may be carried in needle-roller bearings. Sleeves 19 surround the torsion-bars.
Patent GB-808377-A (GB)
Title: Combined housing and mounting for variable resistors and similar radio and television controls
Inventor: BUDD WILBERT H
IPC: H01C10/32
Filed: 1955-12-12
Abstract: 808,377. Variable resistors; couplings. CHICAGO TELEPHONE SUPPLY CORPORATION. Dec. 12, 1955, No. 35616/55. Classes 37 and 38 (1). [Also in Group XXV] A rotary variable resistor, Fig. 1, comprising a front insulating panel 6 on which is mounted a resistance element 7 and a rotary shaft 9 carrying contact members co-operating with the resistance element is mounted within a stamped metal housing, Fig. 4, which housing is secured to the front panel 6 by means of tongues 27 and comprises a flat rear wall 25 and a side wall which is semi-cylindrical in form where it is joined to the rear wall 25 but is also provided with extensions which terminate in shoulders 28 from which depend spring fingers 30, the shoulders 28 being co-planar with the lower edge of the panel 6. An extension 32 from the rear wall 25 is provided with shoulders 34 co-planar with shoulders 28 and the lower edge of the panel 6 and a tongue 33 extending therefrom. The resistor is mounted upon a printed-circuit panel 29 which is suitably apertured, Fig. 2 (not shown), to allow the terminals 20, 22 of the resistor to pass through the panel to make contact with printed-circuit wiring on the other side and to allow the spring fingers 30 to pass through the panel so that the resistor is supported by the lower edge of the base 6 and shoulders 28. The extension 32 provides additional support. The rear wall 25 is provided with an aperture 40 which serves as an endbearing for the shaft 9. The resistor may be combined with a switch 41 having terminals 42.
Patent GB-779912-A (GB)
Title: Improvements in or relating to methods and devices for making screened pictures
IPC: H04N1/405
Filed: 1954-12-09
Abstract: 779,912. Copying by scanning. NAAMLOOZE VENNOOTSCHAP LETTERGIETERIJ AMSTERDAM VOORHEEN N. TETTERODE. Dec. 9, 1954 [Dec. 9, 1953], No. 35738/54. Class 40 (3). In an arrangement for producing a printing plate comprising a series of equally spaced printing dot elements engraved by means of an electromagnetic tool controlled by an electric signal consisting of a triangular wave the instantaneous amplitude of which is representative of the tone of an original picture being copied, the maximum (or minimum) values of the wave are arranged to occur at constant intervals of time and the occurrence of the minimum (or maximum) values are then determined by the amplitude of the signal which is representative of the tone values of the picture at a preceding instant. With this manner of operation the printing dots are uniformly spaced and have a constant rectangular shape resulting in a clearer picture with well-defined contours of the picture elements. As shown in Fig. 3, a saw-tooth, wave derived via a resistor/ condenser network 13, 14 respectively from rectangular pulses produced by a multivibrator 8 (the latter being controlled by a signal generated by an intermittently illuminated photo-electric cell 6) is developed with opposite phases at the anode and cathode respectively of a valve 15 and supplied to the anodes of respective valves 17 and 19. The control grids of the latter valves are supplied alternately with a signal representative of the tone value during a brief instant of the picture being copied, this being brought about by means of a switching arrangement 5 to the input 4 of which the tone value signal (generated in a photo-electric cell 1 by point-by-point scanning of the original picture) is supplied and the switch being operated by means of the positive and negative " spikes " of the differentiated rectangular wave output of multivibrator 8 to cause condensers 30 and 31 to charge to a potential representative of the successive tone values. In this manner the control grids of valves 17 and 19 are held at a constant potential representative of the instantaneous value of the tone in the intervals between the operation of the associated momentary switching actions. The waveforms of the anodes of these valves are then as shown and by means of diodes 20, 21 the most negative values of the potentials at the points 16, 18 pass to a phase-splitting valve 23 and thence to a push-pull amplifier 24, 25 which supplies the electro-magnetic engraving tool 36. A mechanical construction suitable for carrying out the present invention and including means for the photo-electric scanning of the original picture and for the engraving of the printing plate is described with reference to Figs. 4 and 5 (not shown).
Patent GB-1270560-A (GB)
Title: Searchlight apparatus
IPC: F21S8/00
Filed: 1969-07-16
Abstract: 1,270,560. Searchlights. INTERNATIONAL STANDARD ELECTRIC CORP. 16 July, 1969, No. 35769/69. Heading F4R. A searchlight comprises a light source 14 at the focus of a parabolic reflector 13, a first matrix 17 of relatively small converging lens elements 18 disposed in a plane normal to the axis of the reflector and having an outside diameter substantially the same as that of the reflector aperture, and a second matrix 24 of relatively small converging lens elements 25 parallel to and spaced from the first matrix and of substantially the same diameter. Each matrix has the same number of lens elements and each element is axially aligned with a corresponding element of the other matrix and has the same focal length as the other elements of the same matrix, the focal lengths of the elements of both matrices being the same and equal to the distance between the matrices. A grid-like structure composed of tubular elements 28 having the same cross-sectional shape, as the lens elements is disposed between the matrices to prevent "cross-talk" between adjacent pairs of lens elements. The lens elements may be of rectangular or circular shape and the matrix 17 may be movable axially to vary the shape of the beam. The source 14 may be a tungsten filament or xenon arc lamp; when the latter is employed the elements 28 may be replaced by a shield which prevents direct light from reaching the first matrix.
Patent GB-1405641-A (GB)
Title: Process and apparatus for continuous casting
IPC: B22D11/14
Filed: 1972-08-01
Abstract: 1405641 Continuous casting TECHNICON INSTRUMENTS CORP 1 Aug 1972 [12 Aug 1971] 35857/72 Heading B3F [Also in Division F4] A molten metal, such as steel, iron or nickel of an alloy of these, which has a thermal conductivity less than 0À25 cals./sq. cm./cm./‹ C./ sec., is poured into a mould having a side wall 86, Fig. 2, or 184, Figs. 4, 10, and a wall 102/104 or 190 providing a closed end which is moved relative to the side wall during casting (compare Figs. 4 and 10) when the mould and the metal source (such as a tundish 14 or 170) are separated to form a continuous casting, with an initial shell 72 or 261a which bridges the growing gap for the flow of further metal. By charging, during the casting, the metal poured, as in Specification 1,351,856, a composite billet or tube may be cast. Supports 44, Fig. 1, can be raised to support the casting as it is formed. In the Fig. 2, embodiment, the relative movement of the end wall 102, 104 occurs because the side wall 86 is reciprocated by an oscillator 96, to slide on a stand 82 on a carriage 84. In the other embodiment, not only is the side wall 184 reciprocated but the end wall 190 is drawn through the mould from the inlet end to plug the rear end as indicated in Fig. 10. The whole mould, in both embodiments, with the side wall reciprocating, is withdrawn rearwardly from a tundish nozzle, 22 or 174, which has a starter device 24 or 176 attached to it, to form the cast shell, e.g. 261a, cooled by nozzles 260 carried by the mould. Metal 261b flows through the shell to feed the growing end of the casting adjacent the end wall of the mould in the manner described in Specifications 1,351,856 and 1,316,607. To prevent a membrane of solidified metal forming adjacent the end wall of the mould and thereby stopping the further inflow of metal, the end wall is heated from outside the mould cavity, before and possibly during casting, by a resistance coil or by burning fuel in the tundish, Fig. 8 (not shown, see Division F4), or by an induction coil 114, Fig. 2. An annular copper portion 102 of the end wall surrounds a molybdenum or ceramic portion 104 and has a cooling- water chamber 148 to cool lubricant supplied through the portion 102 by way of two annular grooves to the mould side wall. There may be an elastomeric seal, in the groove nearest the mould cavity, with radial escape openings for rapeseed, silicone or cranbee oil or a lubricant having a base formed from artificial slags or ceramic or metal powder. An alternative end wall construction, Fig. 12 (not shown), has encircling bearing elements for contacting the mould side wall and a sealing element which may be sectioned and outwardly urged by springs or be resilient. A ceramic plate (322) at the inner end is replaceable. At the other end, a spring-loaded plunger (318) urges plates and plugs against the replaceable plate. An alternative annular starter device, Fig. 13 (not shown), has at least one groove (332), possibly spiral, opening into the mould cavity.
Patent GB-1048078-A (GB)
Title: Improvements relating to slide projectors
IPC: G03B23/04
Filed: 1963-09-11
Abstract: 1,048,078. Slide projection apparatus. S. BESANCENOT. Sept. 11, 1963 [Nov. 20, 1962], No. 35886/63. Heading G2J. In apparatus for the control and operation of the slide pusher or the slide pusher and the slide tray of a projector having a motor driven fan, an electromagnet 9 controls two toothed wheels 4, 5 through which the pusher may be driven from the said motor. Shaft 0 1  of wheel 4 carries an arm 6 with a stop 7 engageable by a head 8 on the core of the electromagnet, and wheel 5 is fast on shaft 0 2  with a cam 11 having a notch 12 in to which arm 6 is urged at its end 14 by the spring 10<SP>1</SP>, a crank 16 also fast on shaft 0 2  being connected by link 15 to the pusher for imparting reciprocatory motion. When electromagnet 9 is momentarily energized arm 6 is rotated clockwise against spring 10<SP>1</SP> to disengage end 14 from notch 12, to turn arm 6<SP>1</SP> which is also pivoted on shaft 0 1  and coupled to arm 6 by spring 10. Friction wheel 2 carried on shaft 0 of arm 6<SP>1</SP> is thus brought into contact with shaft 1a of the continuously driven fan, thereby rotating pinion 3 fast on shaft 0. Wheels 4, 5 are thus rotated to move crank in direction F 1  until cam 11 turns through one revolution, when end 14 drops into notch 12 and so disengages wheel 2 from shaft 1a.
Patent GB-744456-A (GB)
Title: Improvements in or relating to piston rings
IPC: F16J9/14
Filed: 1953-12-24
Abstract: 744,456. Piston packing. SZIGETI, E. Dec. 24, 1953 [Dec. 27, 1952], No. 35938/53. Class 122(1) The joints in a segmental piston-ring or between a piston-ring and an expansion insert comprise inter-engaging projections on the opposed parts. In an expansion joint the insert may be of T-section, Fig. 3, and have a tongue 10' with a projection 19 on each end of the base 10 which fit steps cut out of the ends 13 of the ring, the rib 9 of the insert entering a slot between projections 8 on each end 13 of the, ring. The insert may'be of U-section, Fig. 7, having a pair of projections 20 at each end, or of L. section, Fig. 11, and the projections 19, 20, 23 may be formed by undulations or triangular teeth; the flange 10 of the L-section may be disposed at the outer periphery of the web 21. The ribs 9, 15, 21 in these constructions are completed by an inclined or stepped portion at their ends, as at 9<SP>11</SP> in Fig. 17. The joint may be formed as in Fig. 37 or Fig. 39, or the surfaces radiused as in Figs. 18 and 22 which show the constructions of Figs. 3 and 7. As applied to a segment ring, Fig. 25, each segment may have identical joint projections on its two ends, resulting in two kinds of segments 25, 26 in the same ring. Alternatively, the joint formation at one end of a segment may be identical with that which engages the other end of the segment, resulting in a ring formed from identical segments. Specification 682,452 is referred to.
Patent GB-845782-A (GB)
Title: Improvements in expansion joints for pipes
IPC: F16L27/12
Filed: 1957-11-19
Abstract: 845,782. Expansion joints. GENERAL ELECTRIC CO. Nov. 19, 1957 [Dec. 17, 1956], No. 35993/57. Class 99(1). In a sealing assembly for an expansion joint of a turbine connecting the inlet conduit 3 to the casing 1, the assembly being arranged in a recess 1a of the casing and preventing the leakage of fluid from the inlet through the recess to a low pressure area in the casing and including at least a first ring engaging the outer surface of the conduit and spaced from the wall of the recess and a second and axially adjacent ring engaging the wall of the recess and spaced from the outer surface of the conduit, and retaining means for limiting axial movement of these rings, the sealing assembly comprises a first group of rings 5a ... 5d exposed to the fluid in the conduit and retaining means 6 for limiting axial movement of that group of rings; and retaining means 8 for limiting axial movement of a second group of sealing rings 5e ... 5h axially spaced from the first group of rings. An annular chamber 17 arranged between the two groups of rings is maintained at a pressure intermediate the pressure in the conduit and the low pressure area and providing a distribution of axial compression forces from the means 6 to the means 9 to facilitate radial expansion of the conduit. As shown, the conduit 3 extends into the cylindrical recess 1a and through an opening in the casing 2, and has integral therewith a nozzle box assembly 4 for directing high-pressure steam on to the blades of a rotor 13. The upper group of solid rings 5a... 5d are retained in place by a segmental ring 6 disposed in an annular recess 1d and the segments of that ring are prevented against moving radially by a retaining ring 7 provided with openings 7a; similarly the rings 5e ... 5h are retained in place by rings 8, 9. Axial clearance spaces 7b, 7c between the rings 7 and 5d and 6 prevent the transmission of compressive forces on to the ring 5e, and an axial clearance space 9a prevents compressive forces being transmitted to the ring 9. The latter is held in place by tack welds, locking screws, or by peening over the adjacent portion of the casing as indicated at 15, the exterior end surface of the ring being provided with a number of circumferentially spaced notches. To prevent sticking of the groups of rings, the conduit has a coating 3a selected with reference to the material of the rings, and there is a clearance space 11 between the ring 9 and the casing 1. The pressure differential across the retaining rings is minimised by providing a passage 1b communicating with the chamber 17 and the space between the blade wheel 14 and nozzle diaphragm 15, the conduit 20 having located therein an orifice 28 across which is connected a flow meter 25 for detecting leakage past the expansion joint.