baber/WOPTO huggingface dataset:
Patent GB-1311713-A (GB)
Title: Multiple choice display systems
IPC: G06F3/02
Filed: 1970-06-23
Abstract: 1311713 Cathode-ray tube displays; touch operated switches SANDERS ASSOCIATES Inc 23 June 1970 [28 July 1969] 30534/70 Headings H3B and H4T Sensing wires affixed to the screen of a data display cathode-ray tube 14 (Fig. 1) are connected to respective detectors 20a-20d which respond selectively to the body capacitance of an observer touching one of the wires and emit a signal for controlling the actual data displayed via a data processing unit 10 and a display unit 12 containing D./A. converters and the deflection yoke for the tube. The data comprises a question and a number of (four) answers, the latter being displayed in register with a respective sensing wire and the processing unit operates such that the content of a particular question (and multiple answers) displayed may be determined by the answer given to a previous question. The detectors are identical and comprise, as shown in respect of detector 20d, a "Programmable Unijunction Transistor (PUT)" 24 which is biased by means of battery 28 and resistor 26 to the region B (Fig. 2) and the anode threshold voltage at which the diode between the anode 24a and a gate electrode 24g becomes forwardbiased to fire the transistor is controlled by a voltage divider comprising resistors 34, 36. In operation, when the circuit is loaded by the operator body capacitance (in series with capacitor 35) to provide a "timing capacitor" the latter charges and reduces the current flowing through the transistor whilst the voltage across the timing capacitor increases and the operating point moves in the negative resistance region from B towards the point A. When the timing capacitor becomes fully charged the current flow through the transistor increases and the operating point returns towards point B. This cycle then repeats, the transistor operating as a relaxation oscillator, until the "timing capacitance" is removed by the operator removing his finger from the selected wire. The output of the circuit is connected to the data processing unit 10 through an impedance matching transistor amplifier 42.
Patent GB-204572-A (GB)
Title: Improvements in lifting-gears for barrels and the like
IPC: B66F9/02
Filed: 1922-11-08
Abstract: 204,572. Pedersen, H. A. Nov. 8, 1922. Jacks.-A lifting-gear for barrels, boxes, sacks &c. comprise a cradle p, Fig. 1, provided with a handle r by means of which it can be rocked so that the projecting ends of cross-bars u, v engage pawls k, j mounted on uprights d, c and thereby raise the barrel &c. To facilitate placing the barrel &c. on the apparatus the upright d' is pivoted at e so that it can be lowered to permit the cradle to assume the position shown in dotted lines. In a modification shown in Fig. 3 the cradle is flat and is used for boxes, while a frame x is provided to take sacks.
Patent GB-1011578-A (GB)
Title: Silanes and siloxanes
IPC: C07F7/18
Filed: 1964-08-04
Abstract: Silanes and polymers of the general or unit general formula <FORM:1011578/C3/1> wherein R is a divalent consisting of C and H atoms, or C, H and O atoms, any O in R being present as OH radicals or ether and/or ester linkages, the radical R being bonded to Si through a C-Si bond, R11 is H or a hydrocarbon, halohydrocarbon, hydrocarbonoxy or acyloxy radical and a is 0, 1, 2 or 3, can be made by various methods, e.g. by any one of the following reactions:- <FORM:1011578/C3/2> Copolymers can be made by co-hydrolysis and co-condensation of the appropriate silanes or by equilibration of the corresponding siloxanes. Examples are given.  Uses.-The products (in solution form) can be used to cast protective coatings on glass and metals, or the products can be cured with BF3 or other Lewis acids to form cured mouldings, castings or films.ALSO:Diolefinic oxetanes can be made by the following series of reactrons; wherein R1 is an alkyl group and n is O or an integer: <FORM:1011578/C2/1> Example (1) describes the preparation of 3,3-bis-(allyloxymethyl) oxetane <FORM:1011578/C2/2> and 3-allyloxymethyl-3-chloromethyl-oxetane, <FORM:1011578/C2/3> The following reactions are also disclosed <FORM:1011578/C2/4> <FORM:1011578/C2/5>
Patent GB-312288-A (GB)
Title: Improvements in charge atomising devices for internal combustion engines
IPC: F02M29/02
Filed: 1927-11-16
Abstract: 312,288. Clayton, J. Nov. 16, 1927. Induction pipes, fittings for.-A charge-mixing device comprises a casing adapted to be secured between the carburettor and the induction pipe and containing a number of freely rotatable propellers, a barrier being interposed between each propeller and the next in series to compel the mixture to take more than one path in passing from one propeller to the next. As shown in Fig. 1, propellers 10, 11 are mounted on a spindle 8 in a casing 3, a bar or bars 6 forming a barrier being situated between the propellers. The bar or bars 6 may be tubular to act as an air inlet or to convey lubricant to the propeller bearings, and may be replaced by small plates fitted to the inner wall of the casing 3 or by a perforated plate extending across the casing. The blades of the propellers may vary in pitch, or adjacent propellers may be arranged to rotate in opposite directions. Reference has been directed by the Comptroller to Specifications 2796/13, 9802/13, 229,595 and 279,725.
Patent GB-1467319-A (GB)
Title: Piston for a heat engine
IPC: F02B3/06
Filed: 1974-07-11
Abstract: 1467319 Pistons DAMPERS SA 11 July 1974 [19 July 1973] 30776/74 Heading F2T A piston for a heat engine has a head T, a skirt J, small end bearing 2 and a chamber 18 adjacent the head, the chamber having oil inlet holes 36 and outlet holes 8 and the small end bearings being supported by pairs of webs 9, 10 spaced from the skirt and providing an increased depth to the chamber 18. The piston may be of head, ring and skirt portions welded together and may be modified for use in a horizontal engine. The gudgeon pin 27 is retained in the bearings 2 by end caps 29 clamped together by bolt 34, the clamping load being taken by a tube 33 to relieve the piston of that load.
Patent GB-886439-A (GB)
Title: Improvements in or relating to apparatus for reproduction or visible presentation ofspatially discontinuous real images
Inventor: BRAKE DAVID GEORGE
IPC: G02B27/02
Filed: 1959-09-09
Abstract: 886,439. Television. TECHNICOLOUR CORPORATION. Sept. 8, 1960 [Sept. 9, 1959], No. 30827/59. Class 40(3). [Also in Group XX] In combination with means for producing at an image surface a real spatially discontinuous image consists of discrete image elements, there is provided optical diffracting means having periodic optical variation on an axis along which the said real image is discontinuous so as to produce from each pencil of light incident thereon at least two diffracted pencils of emergent light corresponding respectively to different orders of diffraction (one of which may or may not be the zero order), such diffracting means being disposed at such a distance from the image surface that at least two resultant 'images of every image element, each corresponding to at least one of the said diffracted pencils, are produced at the image surface. As shown in Fig. 2, in order to reduce the striated or grained appearance of a real image consisting of discrete small areas or lines 3 of varied area, width or brightness, a diffraction grating 2 is positioned between the image surface I and an observer, so that for each image element 3 there are produced by the diffracted rays 6 two additional virtual images 4. By altering the spacing of the grating from the image surface each image 4 may be split up into two, each of these two images corresponding to one image element. The additional image elements may be formed by a grating providing zero order, first order and second order diffracted rays or, if desired, by a blazed grating producing zero order and a single first order diffraction ray. In another form of grating the zero order is suppressed. The grating may be used in television, in which case it is mounted as shown in Fig. 1 in front of the picture tube 22. The image on the tube is produced-as two sets of parallel slightly spaced lines of two rasters, the line 9 of one raster, Fig. 8A being interleaved with the lines 10 of the other raster. The grating forms additional images at 10 from light emanating from the lines at 9 and likewise produces from the original image lines at 10 additional images at or close to the lines 9. The grating may be an amplitude or a phase grating and preferably has a pitch not greater than 1/10 of the pitch of the original image elements. In the case of an amplitude grating, the attenuation may vary abruptly from a minimum to a maximum or may vary continuously, for example, sinusoidally.
Patent GB-188671-A (GB)
Title: Process for preparing cultures of bacillus felsineus
IPC: D01C1/04
Filed: 1922-11-11
Abstract: 188,671. Istituto Sieroterapico Milanese, and Carbone, D. Nov 12, 1921, [Convention date]. Bacteria, cultivating.-In preparing cultures of bacillus felsineus for use in macerating vegetablesubstances, hemp is cut in pieces, placed in water, and sterilized and is then inoculated with a culture of saccharomyces ellipsoideus in a medium such as a decoction of malt, and with the bacillus felsineus.
Patent GB-536832-A (GB)
Title: Improvements in or relating to welding metal strip
IPC: B23K11/087
Filed: 1939-11-27
Abstract: 536,832. Welding; shearing; making strip. STEVENS, A. H. (United Engineering & Foundry Co.). Nov. 27, 1939, No. 30915. [Classes 83 (ii) and 83 (iv)] In welding strips end to end the strips are clamped in alignment with each other, the ends are then sheared to prepare them for welding and the clamps are then moved relatively to each other and at the same time connected to a source of current to effect the weld. The strips S, S<SP>1</SP>, which are slidably supported on driven or idle rollers 37, 12 are respectively secured in clamps 44, 50 and 16, 21, the clamps 16, 21 being stationary and the clamps 44, 50 being mounted on a carriage 39 reciprocated towards the clamps 16,21 by a fluid pressure motor. The movable jaws 50, 21 of the clamps which have insulated faces are pivotally mounted and operated through toggle mechanism by fluid pressure cylinders 55, 30 pivotally mounted at 56, 31. The jaws 16, 44 which are insulated from their supports are connected to the opposite terminals 18, 48 of a transformer secondary, the terminal 48 being connected to the jaw 44 by cooperating blades 46, 47 when the carriage 39 is moved forward. Between the welding jaws is arranged a shear mechanism 3 comprising upright frames and transverse beams 62, 63. Along the beams is traversed by a pair of screws 66, 67 driven by an electric motor controlled by a time switch, a carriage 65 carrying two pairs of shearing rings 72, 73 and 74, 75, mounted on discs 76 axially adjustable on shafts 77. The shafts may be mounted eccentrically on hubs 78 which may be angularly adjusted by worm gear 79. After clamping the strips the ends are sheared by traversing the carriage 65 and the clamps are then moved relatively to each other to flash weld the ends together. The clamps may be then released and the welded strips fed into position between a pair of rotary flash trimming tools consisting of sector-shaped parts 90, 91 carrying single or double helical blades 92, 93. The parts 90, 91 are operated by gears 96, 97 from a fluid pressure motor 98 and the blades come into engagement with the flash only adjacent the line of weld and during the movement of the blades past substantially a line joining the centres of the blade supporting shafts. If the blades operate in a direction towards the welding apparatus the strips are held during trimming of the joint in a clamp 105. If the cutters operate in the opposite direction the strips are held during trimming by one of the welding clamps.
Patent GB-1481102-A (GB)
Title: Watering installation
IPC: B05B3/18
Filed: 1974-07-12
Abstract: 1481102 Watering installations H R DI PALMA 12 July 1974 [13 July 1973 7 Feb 1974 4 July 1974] 30922/74 Heading AID A watering installation wherein there is a mobile carriage (Figs. 1 and 3) provided with a motor MA for driving the carriage, a pair of driving wheels and a tube 16 for supplying water, a water pipe 1 having outlets 2, and guide elements 20, 21 for guiding the carriage along the pipe 1, the carriage comprising a pivotally mounted and spring biased blade 36 and a retractable member 27 having a spring 35 and bolted to a rod 31 via a slot 30 of a limb 26 whereby when the carriage reaches an outlet 2 the blade 36 is pushed back by the outlet 2 and then urged by its rough edge 36 3  against the outlet 2 while the spring 35 compresses against the outlet 2 thereby bringing the carriage to a halt, and a switch Fl is activated to deenergize the motor MA to stop the carriage and to operate an electric circuit to lower the tube 16 to clamp it to the outlet 2 through a connector 17 for watering a field. When Fl is activated the motor MA is deactivated and simultaneously a lift-lower motor MC and an automatic switch (M) Fig. 6 (not shown) are activated for lowering the tube 16 for connection to the outlet 2 and for timing the watering respectively. The lowering of the tube 16 is continued until an abutment 19 actuates a switch F2 for stopping the motor MC. The time switch (M), after a set time, automatically activates the motor MC whereby the motor drives the tube 16 upwardly until an abutment 18 actuates another switch F3 which stops the motor MC and actuates the motor MA. for driving the carriage to the next outlet 2. The motors MA and MC are fed by an accumulator or solar battery B which can be recharged by a water turbine (52) via an alternator (53) and a voltage regulator (54) Fig. 8 (not shown). In another embodiment Figs. 9-11 (not shown) only one driving wheel 60 is disposed having rollers (69) and (70), and paddles (77) and (78), supported by pivot arms (71) and (72) for ensuring cooperation respectively with the pipe I and with a cable (80) tightened between the outlets 2 of the pipe 1. In a further embodiment (Fig. 12) pivoting of hollow tubes 86 and 87 for steering the wheels 9, and 9, is performed by an electric steering motor 95, the outlet shaft of which is provided with a pinion which cooperates with a toothed-rack 97 which moves trans versely relative to the carriage. The wheels 9 1 , 9 2  are driven by a drive motor MC and transmission 104. The steering motor 95 is activated via a relay when two of the driving blades 107 1  - 107 4  on the same track link, 93 in this case of the contact blades 107, 108 &c come into contact with the metallic pipe 1.
Patent GB-175020-A (GB)
Title: Means for taking photographs with special scenic or background effects
IPC: G03B15/12
Filed: 1920-11-03
Abstract: 175,020. Sutcliffe, G. H. Nov. 3, 1920. Composite photographs; studio accessories. - Composite photographs are produced by using a transparent screen arranged at an angle of substantially 45‹ to the plane of the camera lens. The screen a mav be placed in a framework d in front of the lens b of a camera c, and auxiliary lenses may be used, preferably in the side of the frametwork ; or the screen may be inserted in a camera having an additional lens on one side. The photographs may have' scenic, background, or title effects, and the two objects may be of different proportionate sizes, arranged at different angles, or differentially illuminated. The background o may be a picture, painting, or view, or a screen upon which kinematograph pictures are projected. An opaque or darkened screen p may be used in front of the figure m for imaginative pictures. The frame may be provided with vignetting-screens. A skeleton framework e is shown, with panels j sliding in grooves and the rear closed by a panel h having an aperture i for the camera lens. Specifications 30059/09, 10870/12, 6557/13, 7344/13, and 145,638 [all in Class 97 (i), Optical systems &c.], are referred to.
Patent GB-1293489-A (GB)
Title: Apparatus for trimming and/or chamfering gear wheels
Inventor: SEIDENSTICKER HORST
IPC: B23F19/10
Filed: 1971-07-02
Abstract: 1293489 Grinding H SEIDENSTICKER 2 July 1971 [2 July 1970] 31160/71 Heading B3D Apparatus for trimming and/or chamfering straight or helically toothed gear-wheels 4 comprises a grinding disc 1 having, on at least one side, a spirally arranged rib or a plurality of concentrically arranged ribs 2 formed of abrasive material and having a profile corresponding to the profile of the teeth 3 to be trimmed and/or chamfered. As described, the grinding disc having a spiral rib is driven by an electric motor 5. The gear-wheel to be trimmed and/or chamfered is mounted on a pin 6 projecting from a support surface 7 which is adjustable so that its lower edge is radial of the grinding disc for trimming of straight toothed gears or at an angle to the radius for helically toothed gears. The gear is positively rotated during trimming by engagement of the teeth 3 with spherical projections 9 on a guide-wheel 8 rotated by reduction gearing 10 driven by the motor 5. In another embodiment, the gear is rotated by a toothed rack. With a grinding disc having concentrically arranged ribs, the gear-wheels are rolled over the disc.
Patent GB-505583-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02K17/04
Filed: 1937-11-12
Abstract: 505,583. Induction motors. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 12, 1937, No. 31173. Convention date, Nov. 13, 1936. [Class 35] A split-phase motor has a laminated stator 10 provided with inwardly projecting main polepieces 16 increasing in width from a narrow neck portion to a wide pole-face portion, concentrated main winding coils 18 .. 21 being wound about the narrow neck portions, each pole having a slot 17 to receive the sides of adjacent coils 22 .. 25 of a starting winding, and the effective pitch P of the main winding coils being approximately 135 electrical degrees. It is explained in the Specification that the selected coil pitch results in a reduction in harmonie torques. The width of the pole face portion of each pole is approximately twice that of the neck portion and the slot 17 is triangular so that the pole is of substantially uniform crosssection. The main coils may be wound by an apparatus comprising arms 28, Fig. 3, slidable on and rotatable about a shaft 27, the arms having eyes 29 through which the wires 30 are fed to the coils. The slope of the poles tends to concentrate the coils on the narrow portions. During the winding operation, the slots 17 are plugged with sticks of wood 31 which extend from either end of the stator. Auxiliary poles 32 are provided to permit a satisfactory distribution of the starting winding flux and additional turns on these poles may be included in the starting winding circuit. The starting winding is of high resistance so that no phasemodifying impedance need be included, and the circuit is opened as the motor comes up to speed by a centrifugally or otherwise operated switch 27. In. a modification, the stator core laminations are nearly square in shape so as to economize material.
Patent GB-534307-A (GB)
Title: Improvements in or relating to electric lighting units
IPC: F21V17/14
Filed: 1939-12-01
Abstract: 534,307. Securing reflectors; lampholders. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Dec. 1, 1939, No. 31267. Convention date, April 13. [Class 75 (ii)] [Also in Group XXXVI] To facilitate attachment &c. of a reflector 13 in a hood 10, the reflector is made with a neck portion 14 having on it projections 19 which enter internal recesses 17, Fig. 2, on the hood and move up on a partial rotation till they drop into depressions 18. This movement forces up a member 22 to ensure contact between contacts 37, 38, Fig. 9, on it with the fingers 32 on contacts 26, 27, Fig. 6, carried by an upper member 21 resiliently supported from the neck of the hood by bolts 23 surrounded by springs 25.
Patent GB-355575-A (GB)
Title: Improvements in dams
IPC: E02B7/08
Filed: 1930-10-18
Abstract: 355,575. Dams. GRÍNER, C. F., 15, Majorstuveien, Oslo, Norway. Oct. 18, 1930, No. 31311. [Class 68 (ii).] A leaky dam 1 is repaired by means of a thin wall 2 connected to the upstream face 4 by substantially horizontal pillars 5 in such a way that the wall 2 may expand and contract in its own plane independently of the dam. The surface or facing 2 shown consists of reinforced concrete.
Patent GB-492487-A (GB)
Title: Call system for telephonic line with multiple stations
IPC: H04Q5/08
Filed: 1937-11-15
Abstract: 492,487. Electromagnetic interrupters. SOC. ANON. DES ATELIERS BRILLIE FRERES. Nov. 15, 1937, Nos. 31392 and 31393. Convention dates, Nov. 14, 1936 and Oct. 26, 1937. [Class 38 (v)] [Also in Group XXXIX] An electrically maintained oscillating device for producing interruptions in calling current over a telephone line comprises a member 13, 14 mounted on a spindle 16 to oscillate like a metronome the period of which is adjustable by a member 15. When member 13, 14 moves clockwise from its central position, pin 17 and spring 18 make the line circuit and energize coil 21 which is associated with an armature and magnetic field so that it rotates clockwise and carries pin 19 to the left. On the return movement energy is supplied by spring 18 which can follow up pin 17 beyond the central position. When the circuit is ultimately broken, coil 20 is restored by a spring and pin 19 moves spring 18 back to its normal position.
Patent GB-1006321-A (GB)
Title: Improved games ball
IPC: A63B41/08
Filed: 1964-08-04
Abstract: A games ball comprises a leather casing coated, by either dipping or spraying, with a synthetic resin material, recesses or apertures being punched in the outer surface of the leather prior to coating to assist in keying the coating thereto.
Patent GB-737156-A (GB)
Title: Improvement in or relating to colour television systems
IPC: H04N9/44
Filed: 1953-11-12
Abstract: 737,156. Colour television systems. RADIOINDUSTRIE. Nov. 12, 1953 [Nov. 19, 1952], No. 31423/53. Class 40 (3). [Also in Group XL (c)] In a sequential colour television system synchronizing of the colour sequence is effected by adding to synchronizing pulse b2 occurring before one colour frame or line additional pulses b1, b3, b4, the effect of which is momentarily to increase the pulse repetition frequency. To produce from this a colour synchronizing pulse the complete television synchronizing signal is fed to a differentiating circuit C1, R1 to separate the frame pulses from the line pulses and the former are applied via a clipper valve V to the frame scanning generator. The frame pulses are also applied to the grid of a normally non- conducting valve V1<SP>1</SP>. A pulse derived from the frame coils B1, B2 during the fly-back is applied through a lengthening and delaying circuit R3, C3 to the normally negative screengrid of valve V1<SP>1</SP> to render it conductive when a pulse occurs on the control grid. Accordingly an output pulse occurs at the anode only when the further pulses follow the normal frame pulse. In an alternative arrangement valve V1<SP>1</SP> is omitted and the valve V1 is replaced by one having two control grids, capacitor C3 being connected to the second control grid. Current flows to the latter grid to produce a colour synchronizing pulse only when there is a control grid pulse to coincide with the screen grid pulse.