baber/WOPTO huggingface dataset:
Patent GB-1472704-A (GB)
Title: Gaming machine
IPC: G07F17/34
Filed: 1975-11-04
Abstract: 1472704 Gaming machines BELL-FRUIT MFG CO Ltd 4 Nov 1975 [25 Jan 1975] 3358/75 Heading G4V A gaming machine has one or more reels 1 and sensor means 8. The symbols are provided on a band of material 9 which is fastened to the reel and which carries one or more coding marks for each symbol, the coding marks being adapted to be sensed by the sensor means such that the latter produce a coded output signal corresponding to the symbol displayed in window 7. As shown sensor means 8 consists of 4 photocells 10. The band of material is of a plastics material transparent to infra-red light. The rear of the band is divided into 20 code areas, each code area being divided into quarters and selectively printed with ink 13 which is opaque to infra-red light. The code area may be divided into four strips in a row with the photocells being appropriately positioned. In an alternative embodiment the sensor means consists of a series of metal detector units in place of the photo-cells 10. The band of material is then backed by a layer of metal foil and the code areas are coded by punching holes.
Patent GB-247209-A (GB)
Title: Improvements in self-starting synchronous motors
IPC: H02K19/14
Filed: 1926-02-05
Abstract: 247,209. British Thomson-Houston Co., Ltd., (Assignees of Hall, C. I.). Feb. 5, 1925, [Convention date]. Alternating - current motors. - A synchronous motor is provided with a rotor of nonmagnetic conducting material carrying s number of separate magnetizable sections adaptec to lock the rotor with reaction-motor torque at a definite synchronous speec below the maximum induction-motor speed, the induction-motor torque a,t starting being sufficient to prevent any locking tendency. As shown, the motor comprises a primary member 10 having shading-rings 12, 13, and a disc rotor 18 of copper or aluminium provided with thirty soft-iron pins 23 inserted therein. The peripheral dimensions of the airgap are such that three pins are enclosed, and for one cycle of the primary field the disc rotates one-fifteenth of a complete revolution. The relative values of induction and reaction-motor torque may be altered by adjusting the shading- ring 13, a worm 16 being provided for this purpose. The motor may be carried above its synchronous speed by increasing the induction-motor torque, and different synchronous speeds can be obtained by substituting rotor discs having different diameters and numbers of inserted pins. Specification 226,479 is referred to.
Patent GB-622312-A (GB)
Title: Improvements relating to devices for the visual simulation of motion
IPC: A63G31/16
Filed: 1947-02-05
Abstract: 622,312. Ground trainers for pilots. TREWEEK, K. H., and GRAY, T. C. Feb. 5, 1947, No. 3400. [Class 4] Apparatus for the visual simulation of motion, such as ground trainers for pilots and other air-crew, or amusement apparatus, comprises a light source mounted within a translucent body to project images of markings on the body on to a screen, the body being movable to cause movement of the images, and the light source being arranged for movement relative to the screen to cause movement of the images independently of movement of the translucent body. The arrangement illustrated shows a ground trainer for pilots intended to similate conditions when flying above unbroken cloud, and consists of a suitably marked translucent sphere 2 within which are mounted lights 20, Fig. 3, throwing an image on a hemispherical screen 1. The upper half 13 of the sphere is coloured blue and the lower half 14 bears a representation of cloud detail. The lamps 20 are carried by an endless chain 21 driven by an electric motor 25, the wiper contacts 27 of the lamps moving over a bus-bar of constant electrical resistance over the major portion of its length 28, the end sections 29, 30 being of graded resistance. The lamps move from right to left, and are thus gradually illuminated while passing over the end section 29, maintain uniform brilliance over the middle section 28 and fade over the other end section 30. The image on the screen 1 moves in the opposite direction, thus giving a pupil in the fuselage 3 the illusion of forward movement. Variation of air speed is simulated by varying the speed of the motor 25 by operation of a dummy throttle lever 5. The sphere 2 is mounted on gimbals carried by a frame 16 so as to be capable of rotation about axes parallel to the principal axes, movements of the dummy control column 7 and rudder 6 causing operation of electric motors geared to the sphere 2 which is thereby rotated to move the image on the screen 1 in a manner appropritate to the simulation of movement of an aircraft about its axes. Feel may be imparted to the controls by variable-fulcrum spring- loaded levers, the movement of each fulcrum being controlled by the dummy throttle lever 5, in accordance with assumed variation of air speed. The apparatus shown also comprises an epidiascope 8 with a gimbal-mounted mirror 9 by means of which an instructor may project the image of a target aircraft on the screen 1, and vary its position by operating controls 10, 11 for target and gunnery practice. To simulate the motion experienced by a reargunner, the direction of movement of the lamps 20 is reversed and the sphere 2 rotates about the vertical axis only.
Patent GB-731860-A (GB)
Title: Improvements in or relating to flexible couplings
IPC: F16D3/04
Filed: 1953-02-06
Abstract: 731,860. Universal joints. SIEMENS. SCHUCKERTWERKE AKT.-GES. Feb. 6, 1953 [Feb. 6, 1952], No. 3445/53. Class 80 (2). A universal joint comprises driving and driven flanges 3, 4, Fig. 1, connected by bars 5, each bar being attached to the flanges in such a way that it is universally inclinable thereto about pivot points which cannot change in position relative to the flanges and so that it cannot rotate about its own axis, whereby the bar can be subjected only to substantially torsional stress. The bars may, for example, be connected to the flanges by universal couplings 7. In one form, the ends of the bars 5, Figs. 2, 3, pivot in slots in cylindrical pins 23 arranged rotatably and radially in the coupling flanges. In another form, the bars 5, Figs. 5, 6, engage in funnel-shaped slots 9 in the flanges. The ends of the bars can alternatively engage between radially-directed conical pins, Figs. 9, 10 (not shown), or between the edges of plates secured to the flanges, Figs. 12-16 (also not shown). The bars may be arranged with the major axes of their rectangular cross-sections arranged radially, as shown in Figs. 2, 3, 5 and 6, or circumferentially, Figs. 17, 18 (not shown). In the form shown in Fig. 19, the bars 5 are mounted by means of soft rubber 27 in the flange 24.
Patent GB-707621-A (GB)
Title: Improvements in or relating to exhaust silencers for internal-combustion engines
IPC: F01N1/10
Filed: 1952-02-09
Abstract: 707,621. Exhaust-silencers. CROWLEY, F. Feb. 6, 1953 [Feb. 9, 1952], No. 3471/52. Class 7(2) An inlet pipe 1 divides or branches to form a number of expansion pipes 2 each of which has an exterior cooling fin or flange 3, and the expansion unit thus formed is adapted to be attached to a muffling chamber 5 provided with an outlet 7, or outlets. The pipes 2 may be tapered and provided with more than one cooling fin, and may be angularly or parallely arranged relative to each other. The chamber 5 may have a lining 9 of steel wool or glass wool and be fitted with baffles: In a modification the outlet ends of the pipes 2 project through an end member having an exterior ring of several different diameters in order that various chambers 5 or tail pipes may be fitted to the expansion unit, the pipe 1 also being provided with several different diameters to suit various sizes of exhaust pipe.
Patent GB-104546-A (GB)
Title: Improvements in or relating to Pumps or Compressors.
Inventor: SCANES ARTHUR EDWIN LEIGH
IPC: F04F5/50
Filed: 1916-03-09
Abstract: 104,546. Scanes, A. E. L. March 9, 1916. Addition to 7443/15. Hydraulic pumps; regulating and controlling compression and exhaustion.-In an air, gas, or vapour pump utilizing as the working medium a jet or spray of liquid derived from a closed tank into which the pump delivers its mixture of liquid and air &c., the tank being provided with a restricted air or like outlet controlled in accordance with the difference in pressure in the tank and in the suction of the pump as described in the parent Specification, an overflow valve for the liquid from the tank is controlled by a pressure-operated valve device subjected to the opposing pressures in the tank and the pump suction, and the size of the restricted air outlet from the tank is varied by a valve operated in accordance with the liquid level in the tank. As shown, the tank 4 has an inlet 5 and an outlet 6 from and to the pump 16, and an inlet 7 for the admission of water to make up loss and prevent undue rise of temperature, the pump being connected to a steam condenser 19. An overflow pipe 28 leads to the restricted outlet of a valve device 12 constructed as described in the parent Specification; the tank water pressure also acts through a pipe 29 on the upper side of the valve piston, and the pump suction pressures through a pipe 13 on the underside, the outlet being at 11. A float 26 in the tank actuates a valve 25 which controls the size of the restricted air outlet 30. An open stand-pipe 27 may lead from the tank to act as a dash-pot and render the operation of the apparatus more stable.
Patent GB-162806-A (GB)
Title: Automatic feeding mechanism for book-sewing machines
IPC: B42B2/02
Filed: 1920-02-06
Abstract: 162,806. Murray, J. Feb. 6, 1920. Coating-machines. - Signatures are fed automatically to a booksewing machine of the kind in which the signatures forming a book are presented successively to the sewing device by means of a presenting bar or frame. The signatures are placed on their back edges and are guided by adjustable side guides and pass from the conveyer bands to a table F, Fig. 4, which is adjustable longitudinally to vary the opening F<2> through which the front signature is drawn by a suction separator C<3> forming part of a cylinder C mounted on a shaft B. The cylinder rotates in a clockwise direction to separate the foremost signature, and carry it towards the presenting bar T. Prior to this a reciprocating roller G<4> glues the back of the signature, and subsequently the ports C are connected to the suction device and the arm C<2> thus assists in carrying the signature to the bar T. The cylinder C is carried by a shaft B which is oscillated from a cam on a shaft E which reciprocates a rack B<3> geared by gears B<2>, B' to the shaft B. The glueing roller G<4> is carried by an arm G<3> on a shaft G<1> carried by an oscillating arm G, and geared to an oscillating arm H both oscillated from cams on the shaft E. Normally the arm G<3> moves to and from the pile and a positively driven ductor roller G<5>. When, however, the first or last signature of a book is being dealt with, the roller G<4> is prevented from acting by means of a stop H<2> acting on a projection H<3> on the arm H. The stop H<2> normally can be depressed to allow of action of the arm H, but when a pin H<5> on a ratchet wheel H<6> is under the stop H<2>, the action of the glueing device is stopped. To control the period of this tripping action the ratchet H<8> is rotated intermittently by an oscillating pawl operated by a connecting-rod H<11> from the shaft E. This pawl is controlled by an adjustable mask J which permits the number of teeth through which the wheel H' is rotated at each operation to be varied.
Patent GB-866745-A (GB)
Title: Improvements in exothermic sleeves for use in the casting of metals
Inventor: BLOOM BERNARD
IPC: B22D7/10
Filed: 1958-02-06
Abstract: 866,745. Ingot moulds. BERK EXOTHERMICS Ltd. Feb. 5, 1959 [Feb. 6, 1958], No. 3943/58. Class 83 (1). An exothermic sleeve has a reduced bore at or near one end for " necking down " a riser or feeder-head. A flat rim X of bonded sand prevents the exothermic material from burning on to the face of the casting proper. Specification 629,248 is referred to.
Patent GB-1503491-A (GB)
Title: Lintels
IPC: E04C3/02
Filed: 1975-02-26
Abstract: 1503491 Lintels CATNIC COMPONENTS Ltd 26 Feb 1975 [28 Jan 1974] 03947/74 Addition to 1298798 Heading E1K The lintel of Parent Specification is modified in that a portion of the second horizontal plate or part adapted to span the cavity of a cavity wall is deflected from the horizontal to provide a part, e.g. channel 4, that is adapted to accommodate or locate another member such as a window or door frame over which the lintel extends in use. Instead of extending upwardly as shown the channel 4 may extend downwardly into a rebate in the frame.
Patent GB-827649-A (GB)
Title: Manufacture of cellular material from paper or the like
IPC: B31F1/32
Filed: 1955-02-10
Abstract: 827,649. Cellular paper &c. ALLAN, C. R., and DAVIS, W. N. May 8, 1956 [Feb. 10, 1955; May 19, 1955], Nos. 3957/55 and 14431/55. Class 96. Paper &c. 1 is deeply undulated, and closed up to form collateral cells 2, 3 which are held together as by edge strips 4 or facing plies or strips 5, or by adhesive at the shoulders 6 of the undulations, or by inserting cut lengths of such cellular paper into a casing, the material being used, e.g. as heat insulation, or as a flexible packing material. A multiple-ply block may be formed of superposed plies of the paper &c. and may be cut transversely. In making the cellular paper, a web is passed vertically downwards between two co-operating rolls constituted as parallel rods on thin radial spokes, the rods being heated as by gas jets, the undulated paper accumulating and collapsing to the required shape in the lower part of a cage which is in two divisions to allow a horizontal knife to sever the paper and hold it up while the cut portion is removed.
Patent GB-606660-A (GB)
Title: Improvements in or relating to electric tumbler switches
IPC: H01H23/16
Filed: 1945-02-16
Abstract: 606,660. Tumbler switches. NOVOBAX, Ltd., and SHARMAN, A. V. Feb. 16, 1945, No. 4006. [Class 38 (v)] In a tumbler switch, a contact member 8 is given an intial rectilinear movement followed by an angular movement which is completed with a snap action. When the dolly 1 is moved about its fixed pivot 3, slots in its bifurcated extension 5 engage and slide the movablecontact pivot 6 along the upper face of the bridge 2. The contact 8, guided by lugs 11 or 12 engaging the underside of the bridge, makes a corresponding rectilinear movement until the pivot 3 engages one of two ears 9, thus causing the contact 8 to move angularly about its pivot 6. When the mechanism crosses the deadcentre, the contact finally separates and moves rapidly under the action of the spring 7 to the end of slots 10 in the bridge 2. The spring 7 surrounds a plunger 15, one end of which is pivoted to the bridge at 14, and the other is slidably mounted in a bar 17 pivoted to the contact 8.
Patent GB-255811-A (GB)
Title: A process for the production of 2-hydrazino-5-nitropyridine
IPC: C07D213/77
Filed: 1926-02-12
Abstract: 255,811. Deutsche Gold-und Silber- Scheideanstalt vorm. Roessler. July 22, 1925, [Convention date]. 2-Hydrazino-5-nitropyridine is prepared by treating a 2-halogen-5-nitropyridine with hydrazinc hydrate. Preferably the reaction is effected with cooling in the presence of a solvent such as water. According to the examples, 2-hydrazino- 5-nitropyridine is obtained by (1) adding powdered 2-chlor-5-nitropyridine to hydrazine hydrate, and (2) suffusing 2-chloro-5-nitropyridine with a 50 per cent aqueous solution of hydrazine. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use of alcohol as a solvent. This subject-matter does not appear in the Specification as accepted. 2-Bromo. and 2-iodo-5-nitropyridine are prepared by diazotizing 2-amino-5-nitropyridine in the presence of concentrated hydrobromic and hydriodic acid respectively.
Patent GB-470104-A (GB)
Title: Improvements in or relating to totalizing mechanism or the like
IPC: G06M1/34
Filed: 1936-02-11
Abstract: 470,104. Counting-apparatus. INTERNATIONAL COIN COUNTING MACHINE CO., Ltd., and RAND, L. A. Feb. 11, 1936, No. 4151. [Class 106 (i)] In a counting-mechanism for use in a coincounting or other machine the units wheel is driven by a gearing which includes a pinion rotatable on a lay shaft that carries the transfer pinions for the other denominations the lay shaft being movable to disconnect the pinions when the shaft carrying the numeral wheels is rotated to zeroize these wheels. As shown in Fig. 1, the operating shaft 9 drives an upper counter for totals and a lower counter for sub-totals. Regarding the lower counter the gear wheel 8 is formed integral with a wheel 7 arranged adjacent a similar wheel 6 secured to the units numeral wheel 1 the drive being completed through a broad pinion 10 rotatable on a shaft 11 carrying the transfer pinions 13, 16, and 20 for the higher denominational monetary counting wheels 2, 3 and 4. The shaft 11 is supported in a pivoted frame 27 formed with a lever 28 Figs. 1 and 2, bearing on a cam 29 on the shaft 5 carrying the numeral wheels. When the shaft 5 is rotated by means of the knob 26, the cam 29 rocks the frame to disconnect the pinion 10 and the transfer pinions and a longitudinal groove 23 in the shaft 5 picks up pawls 24 on the numeral wheels to restore the wheels to the zero position.
Patent GB-586421-A (GB)
Title: Improvements in the manufacture of building materials
IPC: C04B18/28
Filed: 1945-02-19
Abstract: A building material, e.g., floor tiles, wall rendering, or the like, is made by soaking sawdust with dilute non-oxidizing mineral acid and mixing with it cement.  A 1 per cent. aqueous solution of HC2 or HBr is preferred though H2SO4 or HF may be used, the relative volume of sawdust and dilute acid being 4 : 1.  The cement is added immediately after the soaking or, if a quicker initial set is required, the mixing may be delayed 24 hours.  The amount of treated sawdust may be 2 to 3 times the volume of cement, and the water approximates 50 per cent. of the volume of the cement, about half of the water being mixed with the sawdust before addition of the cement and remaining water.  The Provisional Specification states that wood shavings, straw, heather and bracken may be similarly treated to form building material.  Specifications 230,074, 258,665, and 259,636, [all in Class 70], are referred to.
Patent GB-1134862-A (GB)
Title: Advancing roof support for face galleries in mines
IPC: E21D23/00
Filed: 1966-01-31
Abstract: 1,134,862. Advancing mine roof supports. STAMICARBON N.V. 31 Jan., 1966 [3 Feb., 1965], No. 4245/66. Heading E1E. In an advancing mine roof support comprising two frames 1, 1' arranged in parallel the frames (a) are alternately advanced by a jack 16 acting on a rope or chain 19, (b) are provided with guide rods 9 slidably associated with a guide connection 8 and (c) are interconnected by springs 13, 13' pivately coupled to one another and to the frames to accommodate vertical misalignment.
Patent GB-141462-A (GB)
Title: A new or improved method of interconnecting building bricks and the like
IPC: E04B2/08
Filed: 1919-02-20
Abstract: 141,462. Blythe, T. Feb. 20, 1919. No Patent granted (Sealing fee not paid). Double walls; arches; wall-ties.-Building-bricks &c. are formed with indenta. tions a or recesses for the reception of tie members b which bridge the joints between adjacent bricks. By using longer ties b<3> in places, hollow walls can be built. The indentations a also form keys for the mortar, and they are disposed on the faces of the bricks according to the kind of bond required. In building arches, an inverted or reverse Z-shaped tie b<1>, b<2> is used. Fig. 10 shows a special corner brick c.
Patent GB-104921-A (GB)
Title: Improvements in or relating to Optical Instruments for Sighting Purposes.
IPC: F41G1/38
Filed: 1916-03-23
Abstract: 104,921. Periscopic Prism Co., and Martin, A. B. Rolfe-. March 23, 191G. Eye - pieces, micrometer, cross-wire, and like for sighting telescopes for rifles &c. The member B carrying the sighting- pointer A and crosswire a is carried to slide vertically in dovetailed guides by means of a rotatable external sleeve E with h an eccentric inner surface e bearing on the top end of the member B, which is pressed upwardly by a leaf spring e<1>.
Patent GB-682767-A (GB)
Title: Improvements in or relating to thermionic valve amplifiers
IPC: H03F1/50
Filed: 1949-02-17
Abstract: 682,767. Valve amplifying circuits. MULLARD RADIO VALVE CO., Ltd., and JONES, E. Feb. 17, 1949, No. 4366/49. Class 40 (vi). In a wide-band amplifier, particularly for the video output stage of a television receiver, a voltage dropping resistor 9 is connected between the anode of a radio frequency pentode valve 1 and one end of a load impedance 10, the other end of which is connected to the H.T. supply, and a condenser 11 of such value that the frequency response is uniform over the band, is connected in shunt to the dropping resistor 9. The value of the condenser 11 is such that the impedance of the resistor 9 and condenser 11 together is small compared to the value of the load resistor at frequencies at which the impedance of the stray capacities 12, 13, are comparable with the value of the load resistors. A compensating inductance may be connected across the load resistor. The arrangement enables a miniature R.F. pentode valve to be used with the normal H.T. supply.
Patent GB-1069197-A (GB)
Title: Machines for rasping tyres
Inventor: GARNER HAROLD THORNTON
IPC: B29B17/02
Filed: 1965-02-02
Abstract: 1,069,197. Rasping tyres. BENTHAM TYRE MACHINERY CO. Ltd. April 28, 1966 [Feb. 2, 1965], No. 4392/65. Heading B4B. A machine for rasping tyres prior to retreating comprises a pair of headstocks 1 connected by a headpiece 2, the headstocks having mounted therein rotary shafts 6, 7 having tyre-gripping flanges 8, one of the shafts having an axial bore through which compressed air is supplied for inflating the tyre, the headpiece 2 having pivoted thereto two levers 9 carrying a fluted roller 10 driven by an electric motor 11A for rotating the tyre, the roller 10 being movable towards and away from engagement with the tyre by pneumatic means, and the headstocks having pivoted thereto two articulated frames 21, one at the front of one headstock and the other at the rear of the other headstock, each mounting a motordriven head 24 carrying a rotary rasp 23 the movement of which over the sidewalls and tread of a tyre being determined by a follower roller 28 movable over a template 29, pneumatic piston and cylinder means 26, 27 being provided for moving the rasps 23 and rollers 28 towards and away from engagement with the tyre and templates respectively. The templates are detachably and adjustably mounted. The heads 24 are connected by flexible pipes 25 to dust-extracting means. A tyre to be treated is introduced into the machine by way of a ramp 3 and a platform 4 on which is mounted a turn-table 5 which can be raised by pneumatic or mechanical means.
Patent GB-484746-A (GB)
Title: Improvements in or relating to meshing screw-engines
IPC: F01C1/16
Filed: 1937-02-15
Abstract: 484,746. Meshing-screw engines. BRITISH JEFFREY-DIAMOND, Ltd., and SAVILLE, A. YORKE-. Feb. 15, 1937, No. 4532. [Class 110 (ii)] The exhaust ports 11 in the casing of a meshing-screw engine are shaped so that the gas under pressure is released slowly at first, then with greater rapidity. Compressed driving fluid enters through ports 10 to drive the rotors which, preferably, have two sets of helical blades arranged so that a series of apices will be formed around the peripheries of the rotors at the mid points. Oil drains may be arranged at the bottom of the casings.