baber/WOPTO huggingface dataset:
Patent GB-727993-A (GB)
Title: Apparatus for filling receptacles, e.g., for filling mould trays with ice cream and the like
IPC: A23G9/28
Filed: 1952-07-17
Abstract: 727,993. Filling receptacles. ANDERSON, R. F. July 17, 1952 [Aug. 13, 1951], No. 18123/52. Class 94 (1). [Also in Group V] When moulds travelling along a conveyer 4 between angle irons 6 engage a lever 60, a rod 58, Fig. 5, is moved to operate a valve 25, Fig. 7, and allow compressed air to flow from a supply conduit 20 through a flow control valve 30, a cutout valve 31 which passes a certain volume of air, and a timing valve 32, see Fig. 11 (not shown). The timing valve first allows air to flow through a pipe 34 and a flow control valve 34a to a cylinder 37 to cause a table comprising angle irons 13 to be raised to bring the moulds under feeding nozzles 11. After a predetermined time, which is controlled by a metering valve 35, the air from the valve 32 flows through a pipe 44 and a flow control valve 45 to the upper end of the cylinder 37 and thus lowers the table. The upward movement of the table is adjustably limited by rods 40, Fig. 5, fixed to a frame 39 carrying the table and sliding through holes in brackets 41 fixed to the upper end of the cylinder 37. While the moulds are being filled, the advancing line of moulds is stopped, by an arm 69, Fig. 5, which is moved upwardly by compresssed air supplied through a pipe 27, Fig. 7, to a cylinder 81. While the moulds are stationary, the conveyer slips frictionally under the moulds. As the table moves up, an adjustable screw on the table frame 39 lifts a flexible blade 128, Fig. 8, which rotates a cam 129 loosely mounted on a shaft 130. A projection 131 on the cam disengages a switch which then closes to operate a solenoid 137 the armature of which moves to engage a clutch 139. A gear 144 is then driven which drives through a chain 145 and a variable speed gear 146 the shaft 130. As the shaft rotates, a dog 135 on the shaft engages a pin 136 on the cam to rotate it until the next projection 131 engages the switch and thus disengages the clutch. While the gear 144 is rotating, a gear 155 also drives a gear 159 which drives gears 162, 163 which drive pump gears for discharging material into the mould. This cycle of operations is thus controlled by the speed of the shaft 130 which is adjusted by rotating a screw 153 connected to the variable gear 146. An indicator 152 is provided to indicate the speed of the shaft. If a great change is required in the amount of material discharged, the gears 159, 162 are replaced by a different pair of gears. In a modification, for manual operation, the conveyer is provided with a permanent stop and a clip is provided for holding the lever 60 in its retracted position. The operator manually lifts an empty mould from the conveyer onto the table and operates the valve 25 by means of a foot treadle. When the filled mould has been lowered, the operator lifts it onto the moving conveyer at the exit side of the machine.
Patent GB-685692-A (GB)
Title: Improvements in time-delay circuits, time bases and similar electric circuits
IPC: H03K3/16
Filed: 1948-07-12
Abstract: 685,692. Valve relay circuits. MULLARD RADIO VALVE CO., Ltd., GRIMSDELL, G. D. July 22, 1949 [July 12, 1948], No. 18124/49. Divided out of 685,682. Class 40 (vi). In a time delay circuit in which a capacitor is charged or discharged through a resistor, thereby influencing the current flow in a valve so that after a predetermined time interval the valve current reaches a value so that an associated relay is actuated, the circuit comprises an amplifier, the output current of which has an alternating component which traverses an impedance, the resultant voltage across which is rectified and applied to the amplifier input. The Figure shows a time delay circuit in which on closure of switch 21 an A.C. voltage applied between leads 6, 8 causes valve 1 to conduct on alternate half-cycles and capacitor 13 is charged negatively via rectifier 12 and the step-up transformer 7,11. The voltage across capacitor 13 is smoothed by the filter circuit 14, 15 so that a negative voltage appears across capacitor 15. This voltage charges up capacitor 16 via resistor 17 so that the grid is driven negatively and the anode current of the valve is reduced to a very small value. Capacitor 16 then discharges via resistor 17 until the grid potential rises sufficiently for sufficient anode current to flow so that relay 18 operates and the timing period is terminated. The transformer 7, 11 may have a ferromagnetic core which starts to saturate within the working range of the valve current so that the operating point of relay 18 may be more exactly determined. In a further modification the time period is varied by using a resistor 20 having a non-linear voltage-current characteristic, the resistor may also be temperature dependent. Specification 685,682 is referred to.
Patent GB-856577-A (GB)
Title: Recovery of polymers from solutions thereof and polymers so recovered
IPC: C08F10/00
Filed: 1957-06-07
Abstract: A polymer of a 1- olefin having a maximum of eight carbon atoms and no branching nearer the double band than the 4-position is recovered from its solution in a hydrocarbon solvent by precipitating a portion only of the polymer separating the resultant precipitate from the supernatant liquid and adding to this liquid an anti-solvent so as to precipitate dissolved polymer p  from the supernatant liquid. Specified polymers are those of ethylene and/or propylene, of 1,3 butadiene and of isoprene. The hydrocarbon solvents listed are paraffins and cycloparaffins, while anti-solvents are acetone, methyl ethyl ketone, methyl isooctane ketone, methyl propyl ketone and ethyl propyl ketone, methyl, ethyl, isopropyl, n-buxyl, n-propyl, isobutyl and amyl alcohols.  The polymer is preferably prepared using chromium oxide containing a substantial proportion of hexavalent chromium associated with at least one of silica, alumina zirconia and thoria as catalyst.  The precipitate may also be washed with an anti-solvent.  Apparatus for carrying out the process is described. Specifications 790,195 and 804,641 are referred to.
Patent GB-1597152-A (GB)
Title: Spraying apparatus
IPC: F04C2/107
Filed: 1977-04-30
Abstract: The spraying unit can serve for spraying rubber granules in synthetic resin in order to produce a wear covering with special properties on the floor. The spraying unit consists of a motorised pump (8), an air compressor (7) and a spray nozzle (20). Between the feed tube (18) and a return tube (18a) for the synthetic resin/granule mixture, an adjustable throttle valve (19) is present by means of which, when the pump is driven, a part of the mixture is always fed back to the supply vessel (4) for mixing and is thereby continuously stirred. <IMAGE>
Patent GB-613303-A (GB)
Title: Improvements in gaseous fluid pressure supply systems
IPC: B60T13/36
Filed: 1946-06-18
Abstract: 613,303. Compressed air-operated brakes. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. (Bendix-Westinghouse Automotive Air Brake Co.). June 18, 1946, No. 18232. [Class 103 (i)] [Also in Groups XXVIII and XXX] In a closed compressed-air supply system comprising a compressor 4, a main highpressure reservoir 5, a governor 6, an unloader valve 7, a control valve 8 for supplying air to an actuator 9 and a return line 33 leading from the control valve exhaust port to the compressor inlet, a back-pressure control valve 11 is provided in the line 33 to ensure that when the pressure in the line 33 exceeds a predetermined value the exhaust air is pumped by the compressor to the main reservoir 5. On depressing the operator valve pedal 34, air from the reservoir 5 is supplied to the actuator 9 through a conduit 32, and on the reservoir pressure exceeding a predetermined value the governor 6 allows air to depress the unloader valve diaphragm 38 to open a valve 36 and so allow air from the compressor outlet to be returned to the compressor inlet via a port 35, conduit 42, and past the normally open valve 48 to the conduits 50, 26. A non-return valve 16 prevents back-flow of air from the reservoir 5. On releasing the pedal 34 air at high pressure is exhausted from the actuator 9 and conduit 32 through the return line 33 to a reservoir 10, and closes the valve 48 to ensure the return of such high-pressure exhaust air to the compressor inlet. Whilst the valve 48 is closed the compressor is necessarily on load, and reservoir pressure is relieved through a safety valve 54 to the compressor inlet. A silica gel drier 29 is provided for make-up air.
Patent GB-146315-A (GB)
Title: Improvements in or relating to the distant control of apparatus in accordance with the electrically transmitted movements of a pointer or the like
Filed: 1920-07-02
Abstract: 146,315. Krupp Akt.-Ges., F. Nov. 6, 1916, [Convention date]. Addition to 145,729. Methods of sighting.-A sighting system of the " follow the pointer type " comprises at the receiving station a fine-adjustment indicator, a coarse-adjustment indicator, and an intermediateadjustment indicator. The coarse and intermediate adjustment indicators comprise lamps which illuminate arrows to function as direction indicators. A fine-adjustment indicator D comprises a pointer D<1> operated from a transmitter B and a mark e<1> mounted upon a disk E geared to a shaft F operating the apparatus M to be controlled. The coarse-adjustment indicator comprises two lamps T<2>, T<3> illuminating direction arrows y, z and controlled by a switch r<1>, r<2>, p<2>. The contacts r<1>, r<2> are mounted upon a disk R geared to the shaft A, and the contact-arm p<2> is operated by a receiver P controlled by a transmitter H. The gearing a<4>, r<3> between the shaft A and disk R and the gearing f<6>, h<1> between the shaft F and transmitter H is such that the range of movement of the transmitter drum A<1> and of the controlled apparatus M corresponds to one revolution of the disk R and the transmitter H. An intermediate-adjustment indicator comprises two lamps T, T<1> illuminating adjustment arrows w, x and controlled by a switch q<1>, q<2>, n<2>. The contacts q<1>, q<2> are mounted upon a disk Q geared to the shaft A and the contact-arm n<2> is operated by a receiver N controlled by a transmitter G. The gearing between the shafts A and F and the disk Q and transmitter G respectively is such that the disk Q makes 10 revolutions for one revolution of the disk R. The arms n<2> and p<2> are engaged by the contacts q<1>, q<2> and r<1>, r<2> and are carried around with them according to the direction of rotation of the shaft A. Switches may be placed in the leads of the lamps T, T<1> to break the circuits of these lamps while the lamp T<2> or T<3> is energized.
Patent GB-235035-A (GB)
Title: Internal combustion operated air compressors
IPC: F04B35/00
Filed: 1924-07-31
Abstract: 235,035. Dunlop, J. July 31, 1924. Two-stroke engines.-In engines comprising two or more cylinders, the pump chambers of some of the cylinders are provided with a common delivery connection for supplying compressed air for power purposes, and the pump chambers of the other cylinders have another delivery connection which supplies compressed air to the combustion chambers of all the cylinders. The Figure shows one cylinder the inner end of which works as an air compressor by means of inlet and delivery valves 5, 6, the annular space 11 around the piston at the other end serving as the combustion chamber with. inlet and exhaust passages 7, 8. The pump delivery connection for power purposes is shown at 12, and that to the combustion chambers is shown at 13.
Patent GB-436512-A (GB)
Title: Improvements in the production of solutions of rubber and substances resembling rubber
IPC: C08C19/00
Filed: 1935-06-27
Abstract: The viscosity of solutions of rubber, or of guttapercha, balata and the like, is reduced by treating the rubber or similar substance with a sulphuric acid before, during or after the dissolution or swelling, at a moderate temperature, e.g. 50 DEG  C. The proportion of sulphuric acid may be between 0,1 and 3,5 per cent by weight of the rubber.  Solvents mentioned are carbon tetrachloride, o-dichlorbenzene, chlorobenzene, xylene, toluene, and benzene.  The acid may be p-toluent, - ethane-, benzene, xylene, cymol-, nitrobenzene or nitrochlorobenzene sulphinic acid. Examples are given.
Patent GB-596096-A (GB)
Title: Improvements in or relating to optical scale-reading apparatus
IPC: G01B11/00
Filed: 1945-07-18
Abstract: 596,096. Measures of length. KAPELLA, Ltd., and CLIFFORD, T. W. July 18, 1945, No. 18434. Addition to 544,938, [Group XX]. [Class 106 (ii)] [Also in Group XX] A vernier apparatus for reading a scale and which may be applied to a linear dimension gauge as described in Specification 557,012, [Group XX], comprises a reference line on a movable graticule and substantially perpendicular to the length of the scale, and a pair of co-operating markings comprising a vernier scale substantially perpendicular to the length of the scale under observation and a second reference line substantially perpendicular to the vernier (one of the pair being fixed and the other on the graticule) substantially as described in the parent Specification and, for observing both scales and reference lines, a magnifying lens adjacent which is a stop narrow in the direction of the length of the scale and elongated in the direction perpendicular thereto, parallax being minimized by observation through the stop. As shown, the scale B is observed through an aperture E<1> in the stop E, the outer areas of which may be coloured or semitransparent, supported in a frame A carrying the lens D and having feet A<1> treating it on scale B. A graticule C movable at a slight angle transversely of the scale B by a micrometer screw (not shown) carries one or two vernier scales and a reference line, all of which are perpendicular to the length of the scale.
Patent GB-920020-A (GB)
Title: Improvemen í¡í¡ organopolysiloxane compositions
IPC: C08K5/057
Filed: 1961-05-19
Abstract: An elastomer-forming composition, stable under anhydrous conditions and curable under moist conditions, comprises a linear diorganopolysiloxane having terminal Si-bonded OH groups, a silicic acid ester and a titanic or zirconic acid ester.  Inert fillers and liquid diluents may be added, if desired.  Components disclosed are (i) diorganosiloxanes of viscosity between 500 and 500,000 cs. at 25 DEG C., and having halogenated or non-halogenated aliphatic (saturated or unsaturated) or aromatic radicals, (ii) orthosilicates, Si(OR11), (iii) Ti(OR11)4 and Zr(OR11)4, in which R11\h is an alkyl radical of 1 to 8 C atoms or, in the case of the silicates, an aromatic radical such as phenyl or benzyl.  The ortho-silicates, -titanates and -zirconates may be replaced partly or wholly by their partial hydrolysates.  Fillers specified are SiO2 (natural, fume and precipitated), Al2O3, ZnO, TiO2, CaCo3, CaSo4, BaSo4 and asbestos. Inert liquid diluents specified are cyclohexane, monomethylcyclohexane, ethyl acetate and white spirit.  The reactants are merely mixed together in the absence of moisture.  Where a filler is used, it is mixed with the siloxane and freed of moisture by heating at 130 DEG  to 150 DEG C. in a current of dry nitrogen, cooled and then mixed with the ester components.  Similarly where a diluent is used, the liquid diluent is added to the siloxane and filler and moisture is removed by azeotropic distillation.  Curing is effected by simple exposure to a moist atmosphere (ambient or artificially produced). Examples are given.  Uses: For sticking articles such as "Bakelite" (Registered Trade Mark), metals, masonry, wood and glass; for caulking, coating articles such as fabrics and electrical equipment and for protecting supports.
Patent GB-173720-A (GB)
Title: Improvements in free wheel clutches
IPC: F16D41/18
Filed: 1921-02-02
Abstract: 173,720. Defordt, J. F. Feb. 2, 1921. Clutches, free-wheel.-In free-wheel clutches or ratchet gearing comprising two concentric wheelmembers positively driven by radially-moving pawl-teeth, these teeth are positively reciprocated in both directions during backward movement of the outer member relatively to the inner member. The annular member 1 carries a plurality of sliding pawl-teeth 6 adapted to engage ratchet-teeth 5 on the inner wheel 2, in rigid relationship with which is a pair of rings 3 flanking the member 1 and provided with triangular projections 4 corresponding in number to the teeth 5. The projections 4 engage lugs 7 on each end of the pawlteeth 6 during free-wheel running and positively move them into position to engage the teeth 5. Pairs of spring-pressed balls 11 lodged in circumferential channels in the member 1 engage the semicylindrical or hemispherical ends 17 of the teeth 6 to prevent rattling and to retain them in the engaging-position against the action of centrifugal force or gravity. To reduce lost motion, the teeth 5, 6 are made different in number. In the example shown, there are four more pawlteeth than ratchet-teeth, whereby a diametrically opposite pair of teeth engage simultaneously.
Patent GB-516245-A (GB)
Title: Improvements in and relating to devices for stabilising containers suspended from frames
IPC: B65D81/07
Filed: 1938-06-22
Abstract: 516,245. Resilient supports for containers. RAM, G. H. E. DE. June 22, 1938, No. 18598. Convention date, Feb. 21. [Classes 103 (ii) and 108 (iii)] [Also in Group XVII] A stabilizing device for a container 1, for carrying fragile instruments &c. resilently suspended in a frame 2 by springs- 3 comprises a pair of hydraulic shock-absorbers 4 on opposite sides of the container and pivoted to the container at 6 and to the frame at 7 and another pair of shock-absorbers 10, 11 are connected to an intermediate side and to the frame. The shock-absorbers of each pair are arranged at right angles to one another so that movement of the container is damped in all directions. The shock-absorbers. may be of the frictional type.
Patent GB-816291-A (GB)
Title: Improvements in and relating to roller tracks
IPC: B65G21/22
Filed: 1955-06-28
Abstract: 816,291. Conveyer tracks. GUTEHOFFNUNGSHUTTE STERKRADE A.G. June 28, 1955 [July 5, 1954], No. 18604/55. Class 104 (2). In a conveyer roller track such as are used in articulated conveyers in mining operations in which a track surface is formed by a series of track members arranged end-to-end and having a cross-section including a float load-carrying tread flange 1 and a flat flange extending perpendicular thereto and in which inserts 4 are disposed between successive track members the inserts 4 are narrower than the flat load-carrying tread flanges 1 and the adjacent ends of the flat load-carrying tread flanges 1 are forked to embrace the inserts 4. The inserts 4 may be rhombic, circular or elliptical shaped or waisted at their centre as shown in Fig. 3. The ends of the inserts 4 may also be bounded by a chord formed by a line 7, Fig. 7, extending transversely to the track. The waisted insert, shown in Fig. 3, prevents longitudinal separation of, the track members. The track members are supported at their ends by cambers 5 arranged on the underside thereof on a bearing plate 3 on a line transverse to the track. Specifications 170,265, [Class 104 (ii)], and 756,773 are referred to.
Patent GB-1094379-A (GB)
Title: Venting arrangement for a circuit breaker
IPC: H01H73/18
Filed: 1965-06-01
Abstract: 1,094,379. Automatic circuit breakers. SQUARE D CO. June 1, 1965 [June 16, 1964], No. 18702/67. Divided out of 1,094,377. Heading H2B. The subject matter of this Specification is identical with that of Specifications 1,094,377 1,094,378 and 1,094,380 but the claims relate to the venting of the arc chambers. Each pole of the circuit breaker is provided with an arc shoot comprising a plurality of ferrous metal plates 60 mounted between vulcanized fibreboards 61. Further fibreboards 62, 64, 66 complete the shoot, vents 63, 65 being provided in boards 62 and 64. In addition the shoot communicates through a passage 72 with a channel 68 extending across the base of the housing and covered by a plate 69. The channel 68 is vented, at each end, through the sides of the casing and is shaped at (75) (Fig. 2, not shown) to direct gases from the centre pole to both ends.
Patent GB-242346-A (GB)
Title: Improvements in or relating to motion picture machines
IPC: G03B21/32
Filed: 1924-08-06
Abstract: 242,346. Readeker, W. C., and Claremont Laboratories, Inc. Aug. 6, 1924. Kinematograph apparatus. - In apparatus wherein an endless, film is fed from the interior of a coil to the gate and is rewound on the exterior of the coil, sprockets 13, 14 feeding the film to and from the gate 2 are mounted on a common shaft 15; a separately mounted sprocket 18 may be, arranged within the coil 7 to feed the film in an oblique loop to the feed sprocket 13, all the sprockets being operatively connected together. The film coil is carried by a circular cluster of rollers 5 arranged round an opening in a plate 4 which is held in a box-like casing 1 by grooved ways so constructed as to permit its lateral removal. Radial prongs 9 are attached to some of the spindles of the rollers 5 to retain the film and are movable to permit its removal. The shafts 15, 16 of the sprockets 13, 14 18 are carried by a standard 12 and are connected by chain gearing 12, the shaft 15 being driven from a shaft 19 by a universal coupling 22, a shaft 20, and bevel gears 21. The shaft 19 may be vertically adjustable as described in Specification 242,347. The sprockets 14, 18 are arranged in the same plane as the cluster of rollers 5, and the axes of all the sprockets and of the cluster of rollers 5 are in the same plane.
Patent GB-294368-A (GB)
Title: Disinfecting apparatus for flushing cisterns and the like
IPC: E03D9/03
Filed: 1927-07-14
Abstract: 294,368. Flower, A. L. July 14, 1927. Water-waste preventers, disinfect - ing-apparatus for. - A disinfectant container 1 fixed to a flushing cistern is connected to a cup 4, in which is a loosely fitting plunger 7 connected by a chain 8 to the usual operating lever.
Patent GB-962041-A (GB)
Title: Improvements in or relating to electrical measuring instruments
IPC: G01R13/04
Filed: 1962-05-16
Abstract: 962,041. Recording apparatus. AMPROBE INSTRUMENT CORPORATION. May 16,1962 [Nov. 14,1961], No. 18769/62. Heading G1J. A recording instrument comprises a pointer 40 carrying a stylus 41 movable, in a direction perpendicular to plane of Figs. 8 and 9, in response to an electrical variable being measured. A pressure sensitive recording strip 34, moved by a sprocket wheel 36 moves over a thin transparent flexible film 54 which covers a slot 29 in a plate 23 to exclude dust. A motor 57 rotates a cam member 60, 62 so that a ball 73 intermittently engages a member 48 fixed on a member 44 causing member 44 to move stylus 41 against the film 54 (as shown in Fig. 9). The impression of the stylus is transmitted through the film to the recording strip 34 which is of the pressure sensitive type: The motor 57 also provides a regular intermittent drive to sprocket wheel 36 to move the recording sheet. For use an an indicating device the recording sheet 34 is removed to expose a scale 30 on plate 23, visible through the transparent film 54. The drive to the sprocket wheel is also disconnected for use of the device as an indicator.
Patent GB-487726-A (GB)
Title: Apparatus for the automatic clearing of hoppers
IPC: B65D88/66
Filed: 1937-07-07
Abstract: 487,726. Delivering materials from hoppers. DAMOND, E. July 7, 1937, No. 18871. Convention date, July 17, 1936. [Class 78 (i)] A vibratory clearing device for a hopper c comprises a hollow body b immersed in the material in the hopper and having located therein a vibrator a. The body b may be cylindrical, spherical or of other shape, and, as shown, is suspended by a tube d, and a chain f or other flexible mean's, from a support g resiliently mounted on fixed parts i, The vibrator a may be actuated electrically, pneumatically, or mechanically by means of a flexible cable. The arrangement is preferably such that the frequency of vibration varies between zero and a maximum, and passes through the resonant frequency of the suspended system.