baber/WOPTO huggingface dataset:
Patent GB-541019-A (GB)
Title: Improvements in files
IPC: B23D71/00
Filed: 1940-05-07
Abstract: 541,019. Rotary files. LORANT, H. J. May 7, 1940, No. 8224. [Class 83 (iii)] A rotary file has the teeth 18 arranged in a number of groups at different angles round the surface, the faces of the teeth being undercut and the top formed flat and sloping at an angle of about 3 degrees to 10 degrees. The base of each tooth is constituted by two arcs R and r of larger and smaller radii respectively contacting with one another tangentially: The groups may overlap forming cross-cut portions and the teeth or groups of teeth may be formed separately from the file body and dovetailed or otherwise. attached thereto.
Patent GB-685189-A (GB)
Title: Improvements in or relating to belt fasteners
IPC: F16G3/00
Filed: 1951-04-10
Abstract: 685,189. Belt fastening appliances. GORO SOC. ANON. April 10, 1951 [April 13, 1950], No. 8267/51. Class 80 (i). An appliance for securing hook type wire fasteners into the end of a belt comprises a tubular member 1 having a series of slots 2 for receiving a row of hooks 3, 3', a pin 5 for insertion between the rounded heads of the hooks and the inner wall of the tube 1, and a member 6 arranged. inside the tube 1 and having a longitudinal groove adapted to embrace the outer rounded portion of the hooks to hold them firmly in position. The member 6 is adapted to actuated by rotation of a nut 8 to move both longitudinally and laterally by reason of pins 13 engaging in inclined slots 15 to engage with or disengage from the hooks 3, 3'.
Patent GB-655031-A (GB)
Title: Improvements in leakage prevention devices for hydraulic pumps and the like
Inventor: WORLIDGE RONALD FREDERICK
IPC: F04C2/08
Filed: 1945-04-04
Abstract: 655,031. Joint-making packing. INTEGRAL, Ltd. April 4, 1945, No. 8303. [Class 122 (iii] Leakage across abutting casing surfaces of a pump or other hydraulic device is prevented by a groove 22 communicating with a low pressure point of the device and of such dimensions as may be produced by a scriber or similar hand tool. A groove may be provided in either or each of the abutting surfaces.
Patent GB-541079-A (GB)
Title: Method of and apparatus for recording the broadcast station to which a radio receiver is tuned
IPC: H04H1/00
Filed: 1940-05-09
Abstract: 541,079. Wireless receiving apparatus. RUSCH, H. L. May 9, 1940, No. 8324. Convention date, May 12, 1939. [Class 40 (v)] An arrangement for recording the times during which a receiver is tuned to individual stations includes a recorder having a light-sensitive film 86 driven by a self-starting synchronous motor 88 and by a spring motor on failure of power. A lam 144 connected directly to the power supply illuminates the film through aperture 138 and gives an indication of power failure, while a lamp 158, energized when the wave band switch is turned to the shortwave band, illuminates the film through an aperture 140 to indicate short wave reception. A lamp 172 illuminates the film through slit 136 and there is interposed a meter needle 180 which casts a point shadow on the film which gives a line corresponding to the position of the needle. The position of the needle is made to correspond to the station to which the set is tuned by being controlled by oppositely acting moving coils in the field of horseshoe magnets 186. High frequency energy is taken from the grid circuit of the receiver oscillator and after amplification is fed to the coils by separate channels, one through a circuit tuned to a different frequency in which the current varies with frequency, the other channel being a resistance and independent of the frequency. Thus the ratio of the current varies with frequency and the rectified outputs from the channels is fed to the respective coils to position the needle in accordance with the frequency to which the set is tuned. Other ways of deriving these control voltages are described. Power failure may be indicated by an oscillating stylus normally driven by the synchronous motor.
Patent GB-992422-A (GB)
Title: Ventilating device suitable in particular for motor vehicles
IPC: B60H1/34
Filed: 1962-03-05
Abstract: 992,422. Ventilators. FRANCAISE DU FERODO S.A. March 5, 1962 [March 6, 1961], No. 8353/62. Heading F4V. A ventilating device, e.g. for motor vehicles, comprises an air supply duct, shut-off means, and a deflecting grille adapted for orientation by rotation relative to the duct about the longitudinal axis of the latter, the shut-off means and the deflecting grille being assembled to form an outlet so fitted to the end of the duct that it may turn relative thereto. As shown, Figs. 1 and 2, inclined slats 1a of the deflecting grille 1 are mounted in a frame 1b comprising an ornamental ring 7 and a cylindrical part 8, which latter is extended in the form of diametrically opposite tongues 4 which support a spindle 3 on which a butterfly valve 2 pivots. The position of the butterfly valve is controlled by an arm 5 projecting between two of the slats 1a, an over-centre spring 6 holding the valve in either the closed or the open position. The grille 1 and valve 2 are free to rotate in a sleeve 9 and are retained in the latter by a spring 12 pivotally attached to a bridge-piece 11 on the sleeve 9. Springs 14 retain the assembly in the end of a duct 13. In an alternative embodiment, Fig. 4, the valve comprises two flaps 2a, 2b, pivoted on a common shaft 3 and urged toward the open position 2<SP>1</SP>a, 2<SP>1</SP>b, by a spring 6c. A cam 15, connected by a spindle 16 to a control knob 16b, controls the setting of the flaps, any selected setting being maintained by the engagement of a " piano-wire " spring 17a with a grooved wheel 17 mounted on the spindle 16. Projections 19 on the grille frame 1b engage a circular groove 19a in the sleeve 9 to retain the grille and valve assembly while allowing it to rotate relative to the sleeve. The sleeve 9 is held in a dashboard 18 by the springs 14, and connects the dashboard to the duct 13. Two units may be mounted in a dashboard, one for the driver, and the other for the passenger.
Patent GB-1136378-A (GB)
Title: Methods and apparatus for assembling capacitors
Inventor: BLACK JAMES GILBERT
IPC: H01G13/00
Filed: 1966-02-25
Abstract: 1,136,378. Welding by pressure; making capacitors; straightening; shearing. ILLINOIS TOOL WORKS Inc. 25 Feb., 1966 [22 March,1965], No. 8448/66. Headings B3A, B3E, B3R and B3W. In a method of and apparatus for assembling a lead to a convolutely wound capacitor body having an exposed marginal portion of an electrode foil at one end, the body is supported at an assembly station, the lead wire disposed transversely to and spaced from the marginal portion and then moved towards and into engagement with the marginal portion, a welding voltage being applied to the wire before engagement in order to effect percussive welding of the wire to the foil. A machine for percussively welding lead wires to the exposed marginal portions of the metal foil of convolutely wound capacitors includes two horizontally disposed supply reels 30 from which wires 32, 34 are drawn by the action of a reciprocating gripper feed device or carriage 100 having reciprocating and stationary gripper clamps 140, 110, respectively arranged to clamp the wires during the feed and return motions of the carriage 100. The wires pass through a stationary straightening device 60 comprising for each wire a set of seven horizontally disposed and seven vertically disposed straightening rollers 62, 64 and then through a similar but reciprocating straightening device 80 which reciprocates with the feed device 100. The device 80 acts to straighten the wires only on its return stroke when the wires are stationary and thus eliminates any effect of varying tension in the wires. The two wires are fed through a rear guide 152, past a pneumatically operated shearing device 160 having a fixed lower jaw and blade and a pivotally mounted upper jaw and blade, past a spreader mechanism 180 and through a front guide 156 to the assembly point 250 at which percussive welding of the wires to the capacitor takes place. Capacitors 36 are placed individually on a support 220 and are clamped thereon over a portion of their end surfaces by insulated jaw members 252, 254 (Fig. 8) which carry electrodes 256, 258. Hammer cylinders 268 with hammers 270 drive the spread out wires 32, 34 against the ends of the capacitor, a capacitor bank in the machine being arranged to discharge simultaneously with the driving of the lead wires towards the capacitor to effect the percussive welding operation. The shearing device 160 is brought into operation preferably at this stage, i.e. after welding, to sever the wires, and the support assembly which is linked mechanically to the reciprocating gripper feed carriage 100, then moves the capacitor to a tamping station 310 at which the jaws 252, 254 again close to tamp the remaining projecting parts of the metal foil. While the capacitor is gripped by the jaws the support 220 returns to its original position and the completed capacitor is then released to pass by gravity through a delivery shoot to the product tray 350.
Patent GB-213918-A (GB)
Title: Means for removing the heat from electric coils embedded in an insulating substance
IPC: H01F27/22
Filed: 1924-04-03
Abstract: 213,918. Pfiffner, E. April 3, 1923, [Convention date]. Transformers.-In order to remove heat from electric coils embedded in insulating material, plates of good heat-conducting material are inserted in the insulating mass as nearly as possible in the equi-potertial surfaces of the electric field. In a high-voltage coil system comprising series-connected coils s<1> . . s<5> mounted on an iron core k within an insulating casing i, copper plates l are mounted between the. coils in the mass of cast insulating material. These plates extend nearly to the casing i, and may be provided with enlarged edges adjoining the wall of the casing. The core may be provided with wings h to assist in the transfer of heat to the wall of the casing.
Patent GB-1467077-A (GB)
Title: Damper units for bumper bar or buffer assemblies for vehicles
IPC: B60R19/30
Filed: 1974-02-25
Abstract: 1467077 Friction dampers GES FUR TECHNISCHEN FORTSCHRITT mbH 25 Feb 1974 [24 Feb 1973] 8461/74 Heading F2S A damper unit for use with a vehicle bumper 10 comprises at least three wedge members 17, 30, 32, spaced apart one behind another in a guide tube 14 and presenting at least two pairs of facing wedge surfaces 18 inclined to the axis of the tube 14, an end one 32 being secured in the tube 14, the other 17, 30 being movable along the tube 14; a respective elastomeric member 19 secured between each pair of facing wedge surfaces 18; and friction linings 21, 31 disposed alternately opposite each other in the tube 14 between the movable wedge member 17, 30 and the wall of the guide tube 14 and being connected to the movable wedge member 17, 30. In the embodiments described, the extreme wedge members, e.g. 17 have a single wedge surface and the intermediate member or members, e.g. 30 are roof-shaped; the wedge angles, e.g. 45 degrees, are chosen to avoid jamming at the friction linings 21, 31. The unit is pre-loaded by a ring 33 secured to a flange 15 of the guide tube 14.
Patent GB-1087168-A (GB)
Title: An apparatus for widening a section of a thermoplastic tube
IPC: B29C57/00
Filed: 1966-02-25
Abstract: 1,087,168. Widening tubes. T. BERSANO. Feb. 25, 1966 [Feb. 26, 1965], No. 8526/66. Heading B5A. An apparatus for widening a section of a thermoplastic tube comprises a hollow split mould 8, 9 for shaping the outside of said section, means for opening and closing the mould, e.g. hydraulic ram 7, means for displacing the tube, e.g. ram 26 towards the mould, e.g. via channel 6 (see also Fig. 2, not shown) to introduce said section into the mould, a heating element (13a, Fig. 3, not shown) mounted on means movable along the partition axis of the mould, e.g. by ram 12, the heater being movable thereby into the interior of the mould and into said tube section to heat it, a shaping member (13b, Fig. 3) also carried on said movable means, being expansible by fluid pressure, and introduceable into said tube section after removal of the heating element therefrom, to expand and press the walls of said tube section outwards, and control means to synchronize the various operations. Fluid under pressure may be supplied to the shaping member (13b) via tubular rod (11) of said movable means.
Patent GB-807951-A (GB)
Title: Improvements in mechanisms for advancing heading machines in mines
IPC: E21C29/22
Filed: 1955-03-24
Abstract: 807,951. Endless track vehicle driving gear. MASCHINENFABRIK KORFMANN, G. m. b. H. March 24, 1955 [March 24, 1954], No. 8588/55. Classes 79(1) and 79(2) [Also in Group XXIX] Endless tracks 1 of a mining machine have each driving sprocket 3 driven from a common hydraulic pump 10 through a reversing valve 17 and a pair of double acting jacks 2 arranged longitudinally in a housing 12 disposed between the upper and lower runs of the associated track 1, the piston rod 7 of each jack being connected through a crank pin 6 to the sprocket 3 and the cylinder head 20 thereof surrounding a stationary pivot pin 9 in the housing 12, the pivot pin 9 having two ducts 23, 24 registerable with two ducts 21, 22 in the cylinder head 20 to provide feed and return fluid to the cylinder, the ducts 21, 22 being of different spacing from the ducts 23, 24 so as to cause alternate connection of the pairs of registerable ducts due to swinging movement of the cylinder about the pin 9. As shown, a motor 11 drives the common hydraulic pump 10. The pump inlet is connecteed by pipes 15 to the housing 12. The pump outlet is connected by a pipe 16 to the jacks arranged one on each side of the associated sprocket 3, each piston rod 7 being connected to the crank pin 6 on a plate 5 secured to the sprocket 3, and the pins on each sprocket being 90 degrees out of phase. The liquid from the pipe 16 is branched through a pipe 19 to the backs of each pair of pistons and through the reversing valve 17 to the fronts of each pair of pistons. The valve 17 is connected by pipe 18, 25 to the ducts 23, 24 in the pins 9. As shown in Fig. 5, with the cylinder in a dead centre position the ducts 21, 22 are blanked off from the ducts 23, 24. Each valve 17 has a pipe 26 leading into the housing 12 and has a manual control for forward and reverse control, a neutral or central position of the control being provided.
Patent GB-1502833-A (GB)
Title: Rotary harrows
IPC: A01B33/14
Filed: 1975-02-28
Abstract: 1502833 Rotary harrows C VAN DER LELY NV 28 Feb 1975 [1 March 1974] 8607/75 Heading A1B The subject matter of this Specification is also described in Specifications 1502831, 1502832, 1502834, 1502835 and 1502836, but the present claims are concerned with the top of each tine holder being further from the axis of rotation of the respective soil working member than the bottom.
Patent GB-832309-A (GB)
Title: Granulation method
IPC: B01J2/00
Filed: 1958-03-18
Abstract: <PICT:0832309/III/1> Finely divided material, e.g. uranium oxide, zirconia or alumina is granulated by mixing the material with two liquids having widely different rates of volatilization, e.g. water and acetone or alcohols, ethers and hydrocarbons, and then granulating the mixture by e.g. working the material through sieves 10 and 14 by balls 18 whilst removing the more volatile liquid by blowing air through perforations 26.  The granules are collected in a pan 30 by a collecting cone 28.  The granulating apparatus may be vibrated during the process.  A binder, e.g. polyethylene glycol, may also be added to the material.
Patent GB-141888-A (GB)
Title: Work-holder mechanisms for buttonhole sewing machines
IPC: D05B3/08
Filed: 1919-04-05
Abstract: 141,888. Fairweather, W., (Singer Manufacturing Co.). April 5, 1919. Button-hole sewing-machines.-A work-clamp. made in two parts so that the work can be spread after it is clamped, is provided with two separately adjustable spreading-devices so that the ends of the button-hole can be stretched to different extents. The stretching-cams are not themselves adjustable, but the plates on the clamp-parts are adjustable to or from the cams, so as to vary the lost motion. The lower clamping-plates 11 upon which the upper clamping- plates are mounted can move, under the restraint of screws 25, laterally between guides 10, 24 and can rotate slightly. A pin 35 having a head with two flats is placed between plates 38 on the plate 11 and, when rotated, separates the plates 38. The pin 35 carries an arm 34 linked by a dumbbell shaped part 33 to a plate 32 having cam-projections 31, and when the pin is rotated, these projections bear upon pins 29 and separate the inner ends of the clamp-plates 11. By adjusting the plates 38 and plates 26 which carry the pins 29, any desired differential stretching may be given to the button-hole. The pin 35 is rotated to stretch the work during the withdrawal of the cutting-devices, by means of a rack-rod 50, a latch lever 47, and a lever arm 45 on the pin 35. The pin is then locked by a detent lever 58; the latch-lever 55 also serves to hold it. At the close of the stitching operation, the feed-wheel, by means of a lever 63, turns the detent lever 58, thereby removing the lock on the arm 46 of the pin 35, and also, by an arm 60, depressing the hinged latch lever 47. This permits the pin 35 to turn, under the influence of a spring 43, and the lateral tension is removed from the fabric.
Patent GB-745512-A (GB)
Title: Radio direction-finding receiver apparatus
IPC: H03G3/22
Filed: 1952-04-04
Abstract: 745,512. Radio direction finders. SVENSKA AKTIEBOLAGET GASACCUMULATOR. April 4, 1952 [April 10, 1951], No. 8673/52. Class 40 (7). In a radio direction-finder comprising a continuously rotating directive aerial system 10, automatic gain control is provided by a signal derived from an omnidirectional aerial 12, the signals from the two aerials being applied to respective thermionic valves 28, 29, to which are also applied switching voltages to render them alternately operative to pass the signals applied thereto to the receiver which under the control of the switching voltage applies the signal from the directional aerial system to an indicator and employs the signal from the omnidirectional aerial to derive a gain control voltage. A sinusoidal switching voltage is applied via transformer 33 to render the valves 28 and 29 alternately conductive, so that signals from the aerials 10 and 12 are applied in alternation to the frequency-changer 37. The intermediate frequency signal is rectified by diode 47 and then passed by valve 57 and diode 51 to storage condenser 58, the potential of the which is fed back to valve 37 and is also applied to amplifier 41 to effect automatic gain control. The sinusoidal switching voltage is also applied to transformer 61, the output from which is rectified at 62 to provide a bias for the anode of diode 51 preventing conduction therethrough when the switching voltage has such a polarity that valve 28 is conductive. The intermediate frequency signal is also applied to amplifier 41 and then via second detector 44 to a valve 45 connected in series with the deflecting coils of a cathode-ray tube 21 and having an anode circuit energized by the sinusoidal switching voltage so that current flows through valve 45 only when valve 28 is conductive. The deflecting yoke for the cathode-ray tube is rotated in synchronism with the aerial system 11 so that the directive pattern of the aerial system is traced on the screen of the cathoderay tube. In a modification, Fig. 3 (not shown), two directive aerial systems having oppositely directed major lobes are employed, the two aerial systems being made alternately operative for sequential periods, while in the intervals between these sequential periods signals received upon an omnidirectional aerial are used to derive a gain-control signal. By means of suitable switching circuits in the receiver, the patterns produced, on the cathoderay tube corresponding to the two directive aerial systems are made to coincide.
Patent GB-1201437-A (GB)
Title: Catalyst system for isocyanate process
IPC: C07C263/14
Filed: 1968-02-22
Abstract: 1,201,437. Catalysts used in preparation of organic isocyanates. OLIN CORP. 22 Feb., 1968 [28 Feb., 1967], No. 8680/68. Heading C2C. A process for preparing an organic isocyanate which comprises reacting at elevated temperature and pressure, an organic nitro compound and carbon monoxide in the presence of a catalytic proportion of a catalyst system, in which the latter comprises (a) at least one compound selected from palladium halides, rhodium halides, palladium oxides, and rhodium oxides, and (b) at least one oxide of vanadium, molybdenum, tungsten, niobium, chromium, or tantalum. Examples are given using as starting materials nitrobenzene, dinitrotoluene and isocyanato-nitro-toluene with differing combinations of catalysts.
Patent GB-724329-A (GB)
Title: Improvements in or relating to convertible chairs
IPC: A47C1/032
Filed: 1953-03-30
Abstract: 724,329. Seats. DUCROT, A. March 30, 1953 [April 25, 1952; July 9, 1952; Dec. 31, 1952], No. 8742/53. Class 52 (2). A chair is arranged to act as a fixed upright chair, one in which the back rest is raised and adjusted angularly in a backwards direction and as one which serves as a rocking chair. Fig. 1 comprises a seat frame 7 and back rest frame 10 linked to an underframe 1 through, at each side, a side plate 4 pivoted at 13 to the underframe 1. As shown, each side plate is connected to the seat frame 7 by a link 5 and by an arm 11 of a bell-crank lever and connected to the back rest frame 10 by a link 8 and the other arm 12 of the bell-crank lever. Cross-members 2, 3 of the underframe 1 serve also as stops as do also projections 28, 29 and pin 30. In operation, the back rest 10 is raised causing it to incline somewhat to the rear, move the seat 7 forwardly through the bell. crank lever 11, 12 carrying with the seat the link 5. The chair is now in a position to be rocked by the occupant under the restraint of springs 14. Fig. 11 shows a modification in which a leg rest 45 is provided adapted to fold under the seat in out-of-use position or extended forwardly at any desired angle in which position it may be locked by pegs 47 engaging one of a series of holes 48 in a seat sector. The side plates 4 are provided at the front with bell-crank levers, one arm 5 of which linked by link 36 to one arm of the rear bell-crank levers 11, 12 which an arm 38 of the front bell-crank is connected with a corresponding arm on the other side of the seat by a crossbar 39 which consequently serves as a handle. The front part of the side plate 4 has an extension 40 to enable a system of springs 41 ... 44 to be mounted. As shown, the chair is in inclined position and may be rocked. To bring it to fixed upright position the bar 39 is raised, causing the rear bell-crank levers 11, 12, through links 36 to lower the back rest and incline it forwardly to more upright position. This action also brings a pin 51 on arm 5 beneath a projection 52 on the underframe to lock the seat and back. Fig. 17 shows a construction somewhat similar to that shown in Fig. 11 except that the underframe 32 is provided with arm rests 55 on which is mounted a locking handle 60 operating a bolt 58 co-operating with a rack 57 slidable on the underframe and linked by a link 65 to the side plate 4.