baber/WOPTO huggingface dataset:
Patent GB-1261917-A (GB)
Title: Improvements in or relating to systems for synchronising a film transport and a magnetic tape replay machine or other signal reference source
IPC: G11B15/18
Filed: 1968-04-01
Abstract: 1,261,917. Automatic speed control. H. D. FORD [trading as H. F. ENGj. March 28, 1969 [April 1, 1968; July 10, 1968), Nos. 15571/68 and 32940/68. Heading G3R. The relative phase of pulses derived respectively from a generator 1 driven by a film projector and a reference source which may be a magnetic tape recorder is compared and used to control the supply of current to the projector motor so as to maintain synchronizm between the two sets of pulses. A lamp 3 and a perforated wheel 2 driven by the projector produces a square signal from a photo-electric cell 4. This signal is differentiated and used to trigger a monostable multi-vibrator 7. A sawtooth waveform is taken from the monostable and applied to a gate 8. Pulses from the tape 9 or, in the absence of the latter, from the mains supply, are differentiated at 14 and trigger a second monostable 15 having a much shorter time constant. Narrow pulses taken from the monostable 15 open the gate 8. Upon the relative phase of the pulses depends the amplitude of the sawtooth when the gate 8 is open. The output of the gate, which thus raises in amplitude with the relative phase, is integrated and controls the time constant of a monostable 17 triggered by pulses from the mains supply. The output of the monostable 17 is differentiated and the positive going pulses used to control the firing point of a thyristor 21 supplying the motor. The use of different wheels 2 for different systems is discussed, the required number of holes for several standard systems being given. The wheel 2 may be replaced by a magnetic wheel or tachogenerator.
Patent GB-1159353-A (GB)
Title: Detecting Apparatus for Signalling the need for Bobbin Replenishment in a Loom
IPC: D03D51/34
Filed: 1967-07-18
Abstract: 1,159,353. Looms. NORTH AMERICAN ROCKWELL CORP. 18 July, 1967 [28 July, 1966], No. 32949/67. Heading DIE. Apparatus for signalling the need for bobbin replenishment in a loom comprises a photoelectric feeler housing 29, Fig. 1, secured to the loom framework 28 adjacent the shuttle box 21, 22 on the slay 20 when the latter is in its forward position. The housing 29 has two transparent light tubes 30, 31 projecting therefrom, the first of which projects a beam of light towards the bobbin 26 of the shuttle 25 from a light source in the housing while the second receives light reflected from the bobbin and directs it onto a photocell in the housing. The resistance of the photocell is varied according to the amount of light reflected back from the covered or uncovered bobbin which can be of a light colour wound with dark yarn or vice-versa. This variation of resistance is caused to unbalance a resistance bridge to activate a circuit controlling a weft replenishment mechanism to change an exhausted bobbin for a full one. Voltage is applied to the resistance bridge in the form of pulses derived from a magnet 34, Fig. 2, on the loom cam shaft co-operating with a fixed pick-up coil 38 so that a voltage pulse is induced each time the magnet passes the coil which is timed to occur when the shuttle is boxed. A second photocell is positioned adjacent the light source and arranged in the resistance bridge so as to compensate for variations in light intensity due to aging or variations in voltage. The control circuit includes rectifiers and transistors controlling a solenoid actuating the weft replenishment mechanism.
Patent GB-282057-A (GB)
Title: Improvements in the manufacture of electric incandescent lamp bulbs from glass tubing
IPC: C03B23/07
Filed: 1927-12-06
Abstract: 282,057. General Electric Co., Ltd., (Assignees of Patent-Treuhand-Ges. fiir Elektrische Gliihlampen). Dec. 9, 1926, [Convention date]. Blowing ; forming electric-lamp bulbs.-Relates to a machine for making electric lamp bulbs from glass tubing, short lengths or even scrap pieces of tubing being used. The tubes are carried by a rotatable head and their ends, after being heated, are pinched together and closed by a tool. The closed ends are then rounded and finally are blown to shape in a mould. The machine comprises a vertical pedestal 2, Fig. 1, enclosing a hollow shaft 3 which carries a ring 4, having projecting radial arms, that forms the rotatable head. Carriers 5, for holding the glass tubes, are secured to the head and each carrier is constructed as a spring-closed chuck of usual construction. Each carrier is also provided with a pinion 6 which engages a gear wheel 8 secured to a shaft 7 passing through the hollow shaft 3. A suitable gear is provided for rotating the head 4 step by step, and the movement of the head conveys the glass tubes 9, held in the carriers 5, through eight working-positions A - - H, Fig. 5. After being loaded into the carrier at A, a tube is conveyed to position B where its lower end is heated by burners 10. At the next position C, the lower end is seized by tongs 11 which pinch and close the heated part of the tube and then draw off the lower end, the drawn-out part, 11<1>, of the glass being heated by burners 10<1>. The tongs 11, Fig. 1, are pivoted on the upper end of a rod 15 which slides through a vertical tube 16 and is raised and lowered by an arm 22 operated by a cam. The tongs are raised to their uppermost position and when they are lowered again, they grip and draw off a part of the tube. The closed end of the tube is reheated and rounded at position D, Fig. 5, by burners 25, and air under pressure may be admitted to the tube to assist in shaping the end. At the next position, E, a die. 33, mounted on the end of a vertical rod 27, is moved upwards against the lower end of the tube to cause it to bulge laterally. The rod 27 is drawn downwards by a spring and is lifted to bring the die against the tube, by a cam. The rising part of the cam is serrated so that the die shapes the end of the tube with a succession of taps. At the next position, F, the bulbous end of the tube is reheated by burners 34 and is next blown in a mould 35 at position G. Finally, at position H, the carrier 5 is opened and the finished bulb is discharged.
Patent GB-452140-A (GB)
Title: Improvements in or relating to cinematographic cameras and projectors
IPC: G03B9/10
Filed: 1934-11-16
Abstract: 452,140. Kinematograph apparatus. COLLINGS, C. E. HILLERY-, 26, Rural Way, Mitcham, Surrey. Nov. 16, 1934, No. 33044. [Class 97 (i)] In shutters comprising two blades, for use in projection, capable of being overlapped to form a one-bladed shutter for taking, the blades A B are respectively carried on an inner sleeve and an outer sleeve b<1>, one sleeve having a straight slot and the other a helical slot b<2> and the slots being engaged by a pin on a rod c within the sleeves movable longitudinally to adjust the relative positions of the blades ; the movement of the rod may result from the performance of some essential action in adapting the apparatus for projection or taking or may be effected by separate means. As shown, the rod is formed with collars G, G<1> engaged by a wire F connected to a lever E carried on a pivot e and pulled by a spring e<2>. The insertion of a lamp housing H, Fig. 5, having pins h<1> engaging holes h<2>, h<3> in the apparatus causes, by engagement of a surface h<4> with. a trigger e<3>, movement of the lever E which sets the blades in projecting position. The shutter may be driven through a pinion on one of the sleeves, and its setting may be effected by the insertion of a film magazine, the raising or uncovering of a view-finder, &c.
Patent GB-496840-A (GB)
Title: Improvements in and apparatus for the manufacture and production of acetaldehyde
Filed: 1937-11-30
Abstract: <PICT:0496840/IV/1> In the production of acetaldehyde by hydrolysis of vinyl ethers, the reaction products are removed from the reaction mixture and the aldehyde is then separated from the alcohol in the presence of water, preferably acidified.  The vinyl ether may be made from methyl alcohol and acetylene in the presence of a basic substance in the liquid phase in a tower as described in Specifications 369,297 and 430,764, hydrolysis being effected with dilute acid in a second tower from which the aldehyde, alcohol and steam pass to a third tower for separation.  Alternatively the vinyl ether may be made in the gas phase as described in Specification 427,036. For the hydrolysis there may be used a strong inorganic acid such as chromic, phosphoric or sulphuric acid in very dilute solution. Or the hydrolysis may be effected in the gas phase with steam by passing over a porous carrier such as silica gel impregnated with the acid at 150 DEG  C.  In an example acetylene or gas containing it is passed into methanol containing caustic potash in a tower I at 160 DEG  C. at 14-16 atmospheres pressure, methanol being supplied continuously at 1a.  Vinyl methyl ether passes out through a dephlegmator 2 and is condensed and collected in a receiver 4 and passes thence to a column 6 at a lower pressure to remove dissolved gas and through a measuring device 9 to a tower II in which it bubbles through acidified water at 80 DEG  C.  Acetaldehyde, methanol, and water vapours pass to a distillation tower III which is also supplied with acidified water.  Acetaldehyde passes out of the top of the tower III and aqueous methanol at the bottom; after neutralization of the acid it is concentrated and used again for the production of vinyl methyl ether.
Patent GB-1532540-A (GB)
Title: Slide guide retainer for rack mounting circuit boards
IPC: H05K7/12
Filed: 1976-08-09
Abstract: 1532540 Electrical assemblies INTERNATIONAL ELECTRONIC RESEARCH CORP 9 Aug 1976 [25 Aug 1975] 33096/79 Heading H1R In a rack mounting arrangement for printed circuit boards 11, the board edges are gripped against a flange 21 when a camming rod 28, 70 is rotated through 90 degrees within an arcuate pocket 27, means being provided to effect a resilient action between the rod and the board. In one arrangement, Fig. 3, the rod 28 is a split, resilient tube with flat surfaces 36, 38 at different spacings from a centre of rotation of the rod. The rod is held captive in the arcuate pocket 27 and its rotation is limited by a bolt 46 working in a slot 45 in a wall 26 of the pocket. In another arrangement, the rod is a solid member with adjacent longitudinal flats and the resilient snap action is provided by the wall of the retaining pocket (50, Fig. 5, not shown) which is of flexible material anchored in a main block (51) of the rack. In Fig. 6, the camming rod 70 comprises parts 71, 72 resiliently urged apart by a plurality of springs 79 along the length of the rod. Relative movement between the parts 71, 72 during rotation of the rod 70 is guided by pins (80, Fig. 7, not shown) working in slots (81). A transverse key pin (47, Fig. 2 not shown) is provided at one end of each rod to assist in the rotation.
Patent GB-415692-A (GB)
Title: Improvements in or relating to disengaging devices
IPC: G07F17/38
Filed: 1932-11-23
Abstract: 415,692. Coin-freed game apparatus. KOEP, J., and NAGELSCHMITZ, F., 107, Neustrasse, Eupen, Belgium. Nov. 23, 1932, No. 33174. Void [Abridged as open to inspection under Sect. 91 of the Acts, Feb. 12, 1934]. [Class 27.] Billiard tables, hiring.-A coin-controlled releasing and timing device for billiards comprises a base-plate 2<a>, Figs. 1 and 2, to which is pivoted at 2
 a pawl 2<q> moved in a clockwise direction against the action of a spring 2<r> to release the billiard table. After prepayment, a rod 2<f> is pulled out to actuate a rack 2d which winds up a clockwork 3<m>. The rack returns slowly under the action of the clockwork assisted by a spring-pressed arm 5<m>, but the rod 2<f> is returned immediately, when released, by a spring 2<u>, a pivoted piece 2<u> on the end of the rod engaging a part 5b on the pawl 2<q> to move this pawl to and hold it in releasing position. The piece 2<n> has pins 3<c>, 3d engaging one on each side of a ramp or cam-plate 3<a>, 3b carried by the rack. When the rack returns to its initial position, the ramp releases the piece 2<n> from the pawl 2<q> which is then returned by its spring 2<r> to lock the table. The time during which the table is released may be varied by a set-screw 5<t> or by adjusting the position of the ramp 3<a>. Coin action, mechanical-connection.-A coin inserted into a slot 4<g> in an arm 3<f> of the rod 2<f> rests on supporting arms 3<r>, 3
 and engages shoulders 3<n>, 3<h> on the end of the rack when the rod 2<f> is pulled out. At the end of the outward stroke, the coin falls through a wide portion 5<a> between the supporting arms. Registering.-The rack 2d operates a counter 6<a>.
Patent GB-668224-A (GB)
Title: A method of and apparatus for extruding hollow articles from plastic material
IPC: B29C48/94
Filed: 1949-12-29
Abstract: <PICT:0668224/IV (a)/1> Plastic material which can be changed from a plastic state to an elastic state is extruded in the form of a tube 13 from a die 16 into a heated confining chamber 17.  A bubble is formed in the tube by liquid, vapour or gas injected thereinto through hollow needle 39, the bubble being maintained by compression rolls 54, 55, and this bubble progressively enlarges the tube.  The tube is shaped and set or vulcanized in the hot chamber, and when it leaves the rolls it regains the shape it had before compression. The wall thickness of the tube can be varied by varying the speed of the rolls.  A lubricant is introduced between the tube and the chamber, through pipe 29 and ducts 33 (see Specification 659,480, [Group V]). The material forming the bubble may be glycerine, water, steam or nitrogen.  The chamber 17 is heated by passage of electricity therethrough.  Certain alkyd or other thermosetting resins or rubber may be used.  The Specification as open to inspection under Sect. 91 states that certain thermoplastic materials having rubbery properties may be used, the confining chamber being in this case cooled instead of heated.  This subject-matter does not appear in the Specification as accepted.
Patent GB-202263-A (GB)
IPC: C11D13/02
Filed: 1922-12-05
Abstract: Dehydrated hard soaps are obtained by prolonged heating of the entire mass obtained when fat is saponified with caustic liquor in presence of excess of fat or of unsaponifiable organic or mineral fat-like matter.  Suitable matters specified are "vaseline," wool-fat, fats and fatty acids such as stearine, oleine from wool-fat, waxes such as bees-wax, and paraffin, ceresin, montan, or japan wax.  Hard soaps of large resin or potash content may thus be obtained.  In an example, 40 kilograms of hard soap fat made from hardened train or fish oil, 40 kilograms of palm-kernel oil fatty acids, 20 kilograms of paraffin wax, and the necessary caustic potash liquor of 50-per-cent strength are heated with stirring until no more water vapour escapes.  The mass is then moulded and compressed.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of paraffin oil as a fat-like matter.  This subject-matter does not appear in the Specification as accepted.  Reference has been directed by the Comptroller to Specifications 3908/80, 16059/90, 8798/95, 9419/98, 24240/03, 10486/06, and 149,111.
Patent GB-605612-A (GB)
Title: Apparatus for dry-spinning artificial filaments or threads
IPC: D01F2/30
Filed: 1947-12-17
Abstract: <PICT:0605612/IV(a)/1> In a dry-spinning apparatus for the production of artificial filaments, the evaporative atmosphere travels in a closed circuit comprising, in the direction of travel, an evaporating chamber in which the filaments are produced, a cooling chamber situated beyond the point of emergence of the filaments, and a heating chamber which is in communication with the evaporating chamber, these successive chambers being connected with one another without any constrictions, and without any means for accelerating or slowing up the circulation of the gas or vapour.  The gas or vapour which circulates in the direction of the filaments moves with the same speed as the movement of the filaments, the motion of the gas or vapour being caused solely by mechanical entrainment by the movement of the filaments.  As shown, the left-hand side of the upper part of tube 1 is used as the evaporative chamber of the dry spinning cell. The spinning-solution is extruded through nozzle 6, and the filaments are removed from the side of the tube after passing round roller 7. A heating jacket 2, through which steam is circulated, surrounds the evaporative chamber.  The lower part of tube 1 on both sides is provided with cooling jackets 3, 4, for circulation of cold brine. Condensed solvent is removed through vent 9.  The chamber for reheating the circulating gas is formed by the upper right-hand portion of the tube 1 which is provided with a heating jacket 5 through which steam is circulated.  The apparatus may be used for the production of cellulose acetate or synthetic resin filaments. Specifications 605,584 and 605,597 are referred to.
Patent GB-297254-A (GB)
Title: Improvements in valves for two-stroke internal combustion engines
IPC: F01L7/02
Filed: 1927-12-13
Abstract: 297,254. Dehn, F. B., (Loud Slide Valve Engine Co., Inc.). Dec. 13, 1927. Addition to 297,252. Two-stroke-cycle engines; cylinders, arrangement of ports in.-The piston valve described in the parent Specification, for controlling the transfer of combustible mixture from pump chambers at the lower ends of a pair of cylinders to combustion chambers at their upper ends, is also provided with passages for admitting the mixture to the pump chambers. The valve 20, which is divided by a partition 27 into two longitudinal compartments 28, 29, one to each cylinder, communicating at their lower ends by ports 34, 39 or 35, 19<x> with the pump chambers 111 or 112,. and at their upper ends by ports 32, 16 or 33, 17 with the combustion chambers 26 or 25, is also provided with a longitudinal recess 36 which is constantly in communication with the combustible mixture supply and has lateral extensions 38, 39 adapted to communicate with the ports 19, 19<x> to admit the mixture to the pump chambers.
Patent GB-778280-A (GB)
Title: A process for the production of stable preparations of essential oils
IPC: A23L27/00
Filed: 1955-11-24
Abstract: Stable preparations of essential oils are produced by intimately admixing the oils with a starch-containing preparation having a capillary structure in which the oil is absorbed.  5-10 per cent of starch may be used.  The starch is prepared from gramineal, leguminous, solanaceous or other vegetable material by subjecting a paste of the material with water to high mechanical pressure between heater surfaces to form leaves, for a time sufficient to rapidly expel the water as steam and milling the leaves to form a flour; for example, a paste of wheat flour and water may be made by heating at 160 DEG  for 40-60 seconds.  Natural or synthetic essential oils or spices containing them may be mixed or milled with the leaves either as such or after milling.ALSO:Stable preparations of natural or synthetic essential oils are produced by absorbing the oil in a starchy preparation of capillary structure.  The starchy preparation may be gramineal, leguminous or solonaceous; it is obtained by heating a paste of the initial starch-containing substance, e.g. wheat flour, and water under pressure between plates to expel the water rapidly as steam and form leaves of the starchy material, which leaves may then be milled to a flour.  Ground spices may be mixed with such flour or the spices may be milled with the leaves, 5-10 per cent of the starchy preparation being used.
Patent GB-1579899-A (GB)
Title: Bis-pyridone dyes
IPC: C09B23/00
Filed: 1977-08-12
Abstract: The novel symmetric bis-pyridone dyes of the formula <IMAGE> in which R1 is alkyl and R2 is a group containing amino nitrogen, X is an anion, x is an integer from 1 to 16 and n is between 1 and 2, are suitable for use in antihalation layers of photographic materials.
Patent GB-343430-A (GB)
Title: Improvements relating to motor vehicles adaptable for advertising or sale purposes
IPC: B60P3/025
Filed: 1929-11-07
Abstract: . 343,430. Advertising on vehicles. RICHARDSON, A. L., 48, Upper Church Lane, Belfast. Nov. 7, 1929, No. 33922. [Classes 3 (i) and 3 (ii).] A motor vehicle 1 for use as a travelling shop or private car is provided with removable and preferably illuminated advertising means comprising transparent panels 2 on the back or sides, together with boxes 10 on the top or sides carrying roller advertisements, preferably of the reel and web type, and operated by hand or automatically from the engine or a separate motor. Folding shelves 5 may be provided round the interior of the vehicle for displaying goods 6 through the windows 4. also folding seats 14 and sets of cupboards 3, 7, 9, one of which may be equipped as a small office. A wireless set or gramophone may also be carried, and letter boxes 18 may be provided in the rear doors. The vehicle may be used to carry a number of smaller motor or pedal-driven advertising vehicles such as tricycles or delivery vans, runways 17 being provided for these at the rear of the larger vehicle. The advertising equipment may be removed when the vehicle is to be used as a private car, and the interior may be partitioned off to form sleeping bunks and dining compartments.
Patent GB-382453-A (GB)
Title: Improvements in or relating to printing machines
IPC: B41F27/14
Filed: 1931-12-07
Abstract: 382,453. Printing-surfaces. MASCHINENFABRIK AUGSBURG-NœRNBERG AKT.-GES., 7, Stadtbachstrasse, Augsburg, Germany. Dec. 7, 1931, No. 33929. Convention date, Jan. 12. [Class 100 (ii).] A forme plate for use in letterpress printing- machines comprises a flexible printing-plate or forme 1 which may be formed with a design by photomechanical means, or which may take the form of an aluminium, zinc, or other known planographic printing-plate, the plate being affixed to a baseplate 2 which is constructed like a stereotype plate so that it can be set or positioned in similar manner to the latter on the cylinders of a rotary letterpress printing- machine. The plate 1 may be attached to the base 2 by adhesive or screw means, and the total thickness of the combination is equal to the thickness of an ordinary stereotype plate.
Patent GB-853053-A (GB)
Title: Linear electron accelerator
IPC: H01J25/12
Filed: 1956-11-07
Abstract: 853,053. Linear particle accelerators ; velocity-modulated tubes. GEISLER, W. S. Nov. 7, 1956, No. 34059/56. Class 39(1). A linear electron accelerator is in combination with a klystron oscillator tube, a proportion of the klystron electron beam passing through an apertured collector and the collector being bypassed by a hollow waveguide for the R.F. energy which does not enclose the collector but couples the output cavity of the klystron to the accelerator. As shown the 3-cavity klystron 10 is arranged axially in line with an accelerating structure 12. The electrons emerge from the klystron through a small opening 88 in the collector 72, and the number of electrons passing is controlled by focussing coil 94 which is connected to a variable supply. The output - from the klystron is fed to the accelerator structure through a waveguide 16 which is provided with a movable quartz phase adjuster 98. Specifications 815,063 and 822,906 are referred to.