baber/WOPTO huggingface dataset:
Patent GB-661770-A (GB)
Title: Improvements relating to the grinding of crank-shafts
IPC: B24B5/42
Filed: 1949-04-19
Abstract: 661,770. Chucks. GOODWIN, J. T. April 19, 1949, No. 7384/49. Class 83 (iii). In the grinding of crank-shafts, attachments to a grinding machine are used comprising plates to be bolted to flanges on the headstock and tailstock spindles, which plates support slides movable tranversely of the common axis of the spindles, the slides relatively supporting discs on which chucks are to be mounted, so that by transverse adjustment of the slides, the crank-shaft (when carried by the chucks) can be positioned with its main axis spaced from the common axis of the spindles dependently upon the crank throw, and so that, by angular adjustment of the discs, the angularly-spaced crank-pins can be brought in succession to the correct machining position, to be coaxial with the spindles, while the shaft is held by the chucks. A plate 20 is rigidly bolted to the flange 18 on the spindle 15 journalled in the stock frame 16 by needle roller bearings 17; the flange 18 fits into a recess in the plate 20. The plate 20 carries two parallel guides 21 undercut to support a slide 22; the guides 21 are secured by screws 23 and the slide is clamped by screws 24. A chuck, preferably a four jaw chuck, is carried by a disc 26 rotatably mounted on the slide 22 by a ring of rollers 27; the disc 26 is retained against removal by plates 28 and is locked in adjusted position by clamping pieces 29 controlled by nuts 30. A vernier scale 33 on the slide 22 co-operates with a fixed scale 32 on one guide 21; in the zero position of the scales the chuck and disc 26 are coaxial with the spindle for grinding the main bearing portions of the crank-shaft. For grinding crank-pins, the locking nuts 24 for the slide are released, and the slide adjusted by a screw 37, axially located at 38 in parts 39 on the plate 20, which engages a nut 40 on the slide 22. The adjustment can be effected with reference to the scales; for greater accuracy, slip gauges can be placed between the lower edge of the slide 22 and a machined abutment 41 on one of the parts 39. The slide is locked in adjusted position by tightening the nuts 24. The clamping nuts 30 for the disc 26 are then released and the crank-shaft and discs 26 turned angularly as a whole relatively to the spindle until the first crank-pin to be ground is coaxial with the spindle; the nuts 30 are then tightened. A plate 46, secured to the slide 22 by screws 45, is then adjusted relatively to the slide to bring a zero marking 47 on the plate into register with the nearest of a number of peripheral markings 48 around the disc 26; for the grinding of further crankpins, the disc 26 can be turned through the necessary angle by means of the markings 48. The periphery of the plate 20 has notches 44 engageable by a locating dowel carried by the machine frame, so as to hold the spindle 15 against angular movement while the disc 26 is being angularly adjusted.
Patent GB-416580-A (GB)
Title: New disazo dyestuffs and their application
IPC: C09B31/08
Filed: 1933-03-11
Abstract: Disazo dyes giving on cellulose ester and ether materials grey shades having good fastness to light and washing and good dischargeability are made by coupling a diazotised nitro- or chlornitro-aniline with a 2 : 5-dimethoxy- or diethoxyaniline, again diazotising a coupling with 1 : 5-aminonaphthol in an acid medium.  They may be applied according to Specification 224,077, [Class 15 (ii)].  In examples the following dyes are described: (1) and (2) o- or p-nitraniline --> 2 : 5-dimethoxyaniline --> 1 : 5-aminonaphthol; (3) o - chlor - p - nitroaniline --> 2 : 5 - diethoxyaniline --> 1 : 5 - aminonaphthol. Specification 298,993, [Class 15 (ii)], also is referred to.
Patent GB-883284-A (GB)
Title: An amine
Filed: 1959-06-10
Abstract: The invention comprises the compound having the formula <FORM:0883284/IV (b)/1> The compound is prepared by reducing heptamethyleneimino-acetonitrile with lithium aluminium hydride. Heptamethyleneimino acetonitrile is prepared from heptamethylene imine and chloracetonitrile.  Specification 883,283 also is referred to.
Patent GB-1344614-A (GB)
Title: Improvements in or relating to control means for electric motors operated from batteries
Inventor: MORTON JOHN
IPC: G07F17/30
Filed: 1970-02-17
Abstract: 1344614 Control of D.C. motors CABLEFORM Ltd 19 April 1971 [17 Feb 1970] 7473/70 Heading H2J A control system for a battery powered motor, e.g. in a vehicle, comprises a switch device S (two thyristors with commutating capacitor) operable by a control pulse signal and means are provided for interrupting the motor circuit if a current through it is detected in the absence of a control signal. The object is to prevent the motor running due to spurious operation of the switch. The motor has a series field F connected via reversing contactors whose coils RLF, RLR are energized via a selector switch F, R and relay contacts rla 2  which are normally held closed by energization of its coil RLA2 through a transistor T3. T3 can be turned off by conduction of T2, but this is normally inhibited by another transistor T1 kept conducting by the control pulse signal. When this signal is absent, T1 is off and T2 can be turned on, and this happens if current is detected in a resistor R1 in the motor circuit. When T2 thus turns off T3, T2 is held on by feedback through R22, and the circuit must be reset by discharging a capacitor C4, which is done by turning on T1 by opening a microswitch MS1.
Patent GB-398514-A (GB)
Title: Improvements in or relating to electric terminals or contact devices
IPC: H01R13/05
Filed: 1932-03-15
Abstract: 398,514. Plug couplings. BELLING & LEE, Ltd., HASLAM, A. G., and BRYCE, N. D., Cambridge Arterial Road, Enfield, Middlesex. March 15, 1932, No. 7675. [Class 38 (i).] In a wander plug formed from solid brass rod by turning and drilling and having one end threaded to receive an insulating cap 20, the contact portion comprises two resilient limbs 19 separated by an opening of keyhole shape formed by a longitudinal saw-cut 18 and an aperture 17 in a central spherical portion 13. The threaded end may be fitted with a spike 22 to grip the end of a flexible conductor inserted through a lateral opening 21 in the cap 20.
Patent GB-1170181-A (GB)
Title: Gauge with Adjustable Feelers.
IPC: G01B5/012
Filed: 1967-02-17
Abstract: 1,170,181. Feeler gauges. HAMILTON WATCH CO. Feb.17, 1967 [May 3, 1966], No. 7800/67. Heading G1M. In a gauge two feelers 15, 16 are mounted on elements on blocks 11, 12 arranged for lateral movements towards and away from one another through a linkage mechanism, not described to actuate a dial indicator 14. Each feeler is mounted on an element 20, 21 which is composed of two jaw members 22, 23 joined pivotally at one end to allow for angular adjustment in a vertical plane and being rotatable, about a pivot 34 to provide adjustment in a horizontal plane, so that parallelism between the two feeler faces may be obtained.
Patent GB-503364-A (GB)
Title: Improvements in and relating to game apparatus
IPC: F41G3/26
Filed: 1938-03-14
Abstract: 503,364. Coin-freedshooting-apparatns. SAUERBIER, E. March 14, 1938, No. 7860. [Class 27] [Also in Groups XV and XXI] A coin-freed, shooting-practice game apparatus comprises a darkened chamber, a movable target and a gun fitted with a miniature searchlight for illuminating the target and co-ordinated to aim at the same place, the aim being verified by a projectile or other means. In the embodiment shown, a searchlight 24 is fixed to the barrel 20 of a gun-like device 19 pivoted at 18 and in lino with a verifying device 22, also fixed to the barrel 20. Initial operation of the trigger 25 lights the lamp 9 in the searchlight and sets the disc 6 bearing a number of targets 8, rotating. The player looks through a device 7 and a lens 17 for making the target appear near or distant and by moving the gun grip 19 endeavours to pick up one of the targets in the searchlight. While keeping the searchlight on the moving target, he'squeezes the trigger 25 further, thus supplying current to a variable and lowfrequency interrupter 22 to verify his aim. The end 36 of the spring-loaded armature 30 of the exciter coil 29, Fig. 4, then hammers at the back of the disc 6 which is coated with insulating material except at the back 16 of each target 8. When the end 36 contacts with the back 16, a circuit is thus closed, and a hit is indicated by the lighting of a lamp and the actuation of a hit counter 67, while each oscillation of the armature 30 is registered on a counter 62 for the number of shots. The apparatus is coin-freed, the coin being inserted at 73, passing a delayed response coin ejecting magnet device and a coin counter, restoring the counters 62, 67 to zero, and rendering the apparatus again operative. When the dial 62 reaches a certain number the batteries are cut out of circuit until another coin is inserted. The whole apparatus may be mounted on a column 80 adjustable, in height. In another mounting the casing of the apparatus has a glazed window with a mirror adjusted so that other persons may see the disc 6 carrying the targets.
Patent GB-224456-A (GB)
Title: Improvements in or relating to veneering presses
IPC: B27D1/10
Filed: 1924-03-28
Abstract: 224,456. Buddenberg, G. March 28, 1924. Presses for use in glueing veneer comprise a heated pressing-beam and a heated supporting- plate which are both divided longitudinally into two parts 1, 2 and 3, 4, as shown in Fig. 3. The parts are clamped together by screw spindles 9 - - 12 so as to be adjustable vertically and horizontally. The opposite faces of the parts 1, 2 of the pressing-beam are provided with interlocking teeth 15, Fig. 2, to prevent warping of the veneer. Channels 13, 14 in the parts 1 - - 4 are designed to receive a heating-medium.
Patent GB-391958-A (GB)
Title: Fuel oil injection systems for diesel motors
IPC: F02M61/04
Filed: 1932-03-17
Abstract: 391,958. Liquid-fuel injectors. RIEGELS, O. L. A., 1907, Loring Place, Bronx, New York, U.S.A. March 17, 1932, No. 7970. Convention date, March 17, 1931. [Class 7 (iii).] To maintain the pressure of the fuel supply to a Diesel engine substantially constant the fuel is fed through a closed circuit and the cross section of the pipe line beyond the injection valve is closed simultaneously with the opening of injection valve. Referring to the Figure, fuel from a tank (not shown) traverses a duct 18 in a valve housing 10 and a passage 19 around an injection valve 11 and when the valve is closed the fuel is conveyed through a passage 24, past a valve 29 which opens against the action of an adjustable spring, to an aperture 42 leading back to the tank. When fuel is injected a lever 13 raises the valve 11 and simultaneously a collar 36 on the valve 11 engages a lever 32, the end 37 of which holds the valve 29 to its seat. A plurality of injection valves may be supplied with fuel from a common supply line excess fuel being led to a common line containing a pressure regulating valve back to the tank. Alternatively, a separate pump may be provided for each injection nozzle.
Patent GB-1094253-A (GB)
Title: Improvements in or relating to heat exchanger tube banks
Inventor: TAYLOR ANTHONY JAMES
IPC: F28F9/013
Filed: 1965-02-24
Abstract: 1,094,253. Heat exchanger tube supports. BABCOCK & WILCOX Ltd. April 4, 1966 [Feb. 24, 1965], No. 8017/65. Heading F4S. A tube bank for tubular heat exchangers comprises two stacks 1, 2 of tube lengths 16, 16a which may be interconnected by U-bends to form sinuous tubes with the tube lengths in series (Fig. 1) or the tube lengths may be connected in parallel. The two stacks 1, 2 are located adjacent to one another with the tubes of one in staggered relationship to those of the other, except at spaced locations where, by means of bends 26, 26a, the tubes of one stack are located between adjacent tubes of the other stack. At these spaced locations, the tubes are supported laterally, which is achieved in the embodiment shown by means of the inlet tubes 7, 9, 7a, 9a which pass down one side of the stack of tubes and return up the other side. In an alternative embodiment (Fig. 5), the supporting portions of the inlet tube (27) cross over at a point intermediate of the tube bank, a gap being left in the bank for this purpose. The tubes are supported vertically at the locations of the bends 26, 26a by the neighbouring tubes. A plurality of such tube banks may be assembled, each alternate bank being rotated through 180 degrees relative to the neighbouring banks (Fig. 4). For this purpose, the distances X, Y from the inlet tubes 7, 9 and 7a, 9a respectively to the corresponding extremities of the tube bank are made to differ by at least the diameter of the inlet tubes.
Patent GB-364430-A (GB)
Title: Improvements in automatic orienting and effacing devices for wind-motors
IPC: F03D7/02
Filed: 1931-03-16
Abstract: 364,430.. Wind motors. CONSTANTIN, L., 26, Rue EugÞne Flachat, Paris, and BEAULIEU, P. FORTIER-, 3, Rue des Tanneries, Roanne, Loire, both in France. March 16, 1931, No. 8025. Convention date, March 14, 1930. [Class 110 (iii).] Means for turning an impeller 26, of a wind motor, out of the wind when the wind velocity increases comprises an effacing plane 10, a curved rudder 3 or 3a fixed to an arm 4 pivoted at 5 to the wind motor head, and pivotally mounted arm 13, 14 connecting the arm 4 with an arm 11 which supports the vane 10. The arm 11 is connected to an arm 20, forming part of the rotatable head 6, through a shock absorber 19. A similar shock absorber 9 connects the arm 4 with an arm 8 of the head structure. A spring 18 maintains the position of the arms 13, 14, as shown in the Figure, until the wind velocity increases when the vane 10 and arm 11 is forced downwards and, under extreme conditions, turns the axis of the impeller 26 along the line 2 until the plane of the impeller lies in the direction of the wind. Cables 21 which pass over pulleys 23, 24, 25, and are fixed to the arm 4 at 22, enable the impeller to be turned out of the wind by hand at ground level. The longest dimension of the rudder 3 lies'vertically parallel to the axis 7 about which the head 6 turns.' The spring 18 may be relaced by a cable and counterweight. A shock absorber 12 contacts with the arm 4 when the plane of the impeller 26 lies in the wind.
Patent GB-177976-A (GB)
Title: Improvements in or relating to stencil-printing duplicators
IPC: B41L13/02
Filed: 1921-03-15
Abstract: 177,976. West, J. F. March 15, 1921. Stencils; addressing and like machines. -In stencil-printing duplicators of the non-rotary type having a platen, a carrier for the stencil paper hinged thereto, and an inking-diaphragm detachably supported by the stencilcarrier, two or more platens with two or more stencil-carrying plates are employed, all hinged together along one edge in album form, two of the platens preferably constituting the cover-plates. As shown, two cover-plates A forming the platens have two stencil-carrying plates B hinged thereto, the stencil being attached to one side of the carrier and the inking-diaphragm inserted on the other side. The stencil-carriers have full-size openings and receive adapter-frames K provided with different openings for smaller sizes; these adapter-frames in turn receive other adapter frames K<1> carrying an inking-diaphragm of corresponding size, or the inking-diaphragm may be secured across the opening of the stencil adapter-frame. Between the stencil-carrying plates is positioned another plate comprising two parts C, C<1> hinged together at C<3>, and this plate can be turned down to form a strut against which the stencil-carrying plates rest. The strut may be held in position by a tagged cord. The various plates are made of thin leather-board, aluminium, or other light sheet material. Multi-coloured inking can be effected by dividing the inking-surface by an adjustable strip L mounted in holes L<1> on the sides of the stencil-carrying plates or adapterframes by fasteners L<2>.
Patent GB-1517493-A (GB)
Title: Apparatus for scaring away birds
IPC: A01M29/18
Filed: 1977-02-25
Abstract: 1517493 Bird scares J A HIRS 25 Feb 1977 [5 March 1976] 08150/77 Heading A1E A bird scare has a revolving turret 2 housing ultrasonic resonators 3-5 of different frequencies in the region of 15 kHz, the resonators being connected to a warble generator 11 the frequency of the output signal of which is warbled by a low-frequency signal through a frequency range containing the resonant frequencies of the ultrasonic resonators. This arrangement gives a rapid sequence of acoustic shocks of changing frequency preventing habituation of the birds so that the scare remains effective over prolonged periods of use. A switch S switches the apparatus off at dusk and on before dawn.
Patent GB-116348-A (GB)
Title: Improved Process for the Manufacture of Benzoic Acid.
IPC: C07C51/29
Filed: 1917-06-07
Abstract: 116,348. Weston Chemical Co., and Savage, J. June 7, 1917. Benzoic acid is prepared by chlorinating boiling toluene so as to produce benzyl chloride, benzal chloride, or mixtures therof, then heating these first with a solution of an alkali or alkaline-earth, and then oxidizing by means of a hypochlorite; the resulting solution of a benzoate is treated with an acid to precipitate benzoic acid.
Patent GB-916342-A (GB)
Title: Improvements relating to seats and the like for furniture
IPC: A47C7/22
Filed: 1960-03-08
Abstract: 916,342. Mattresses &c. BERG, L. March 8, 1960 [March 9, 1959], No. 8219/60. Classes 52 (4). A resilient supporting surface for a mattress or chair seat consists of an elastic plate 1 of rubber or polyvinyl chloride, having perforations 3 and strengthening ribs 2 around its edges, attached to a frame 7 by means of textile straps 4 passing through perforations and the ends of which are nailed to the frame at 8. A plurality of plates may be connected together by straps or hooks to form greater lengths.
Patent GB-1151388-A (GB)
Title: Gas Laser Apparatus
IPC: H01S3/134
Filed: 1968-02-20
Abstract: 1,151,388 Automatic current control. SHIBA ELECTRIC CO. Ltd. Feb.20, 1968 [Feb.21, 1967], No.8304/68. Heading G3R. [Also in Division H1] To minimize noise in the output of a gas laser, the discharge current in the laser tube is maintained at a constant value by a current detection and regulating circuit. As shown, a He-Ne laser tube LD is excited by current from a D.C. source E 1  through a regulating triode V 1  and ballast resistor RO, the triode being controlled by a differential amplifier V 2 . The discharge current is detected over resistors R 1 , V R , and controls the triode amplifier V 2  which is biased by a constant reference voltage, this voltage being determined by a Zener diode D in the circuit of a source E2. It is stated that output noise is mainly due to negative incremental resistance of the laser tube.
Patent GB-278257-A (GB)
Title: Improved double harrow
IPC: A01B25/00
Filed: 1927-03-26
Abstract: 278,257. Eckardt, R. March 26, 1927. Lifting frames manually; draught devices; steering- gear; weights. - A ridge harrow comprises two toothed frames connected together by chains and each consisting of a straight part and a serpentine part having bends increasing in length towards the rear, the teeth of the harrow decreasing in length from the straight part towards the parts remote from it. The frames are made of bar iron of square section, the straight parts a consisting of double bars terminating in tongues b. The teeth are made of round iron. One frame is connected to a draught hook i by a long chain g and the other by a shorter chain h, the two frames being connected together at the rear by a chain k. A hand rope l is attached to the rearmost frame for guiding and lifting purposes. Separate weights x may be placed on the frames.
Patent GB-177528-A (GB)
Title: Improvements in automatic fuse-setting apparatus for anti-aircraft artillery
IPC: F42C17/00
Filed: 1922-03-22
Abstract: 177,528. Morse Instrument Co., Inc., (Assignees of Morse, R. V.). March 28, 1921, [Convention date]. Fuse-setting devices combined with parts of guns.- Relates to anti-aircraft automatic guns haying means for setting the time fuses of shells as they are fed through the gun, and consists in effecting the setting in a series of steps spread over a constant time interval greater than that between successive discharges. The setting is adjusted by the gunner so that the line cf bursts can be directed on the target. Fig. 4 shows an automatic fuse-setting device 6 rotated and operated by the feed of the cartridge belt 7 through the gun 5. The rotary device 6 carries a circumferential series of sleeves 30, Fig. 2, which are moved in succession by levers 26 engaging a fixed cam 24 so as to act first through springs 33 on the plungers 11 to grip in turn the shells 12, and then to move relatively to the plungers to grip in turn the fuse rings 14. The fuse rings are finally rotated the desired amount by spindles 31 keyed to the sleeves 30 and actuated by epicyclic gears 35, 36, the planet pinions 36 of which are carried by crank-discs 41. The crank-pins 42 of these discs are connected by rods 43 to a sheave 49 the eccentricity of which is adjusted by screwgear 45 operated from hand-wheel 8 whereby the fuse setting is varied.
Patent GB-539252-A (GB)
Title: An improved manufacture of alkyl halides
IPC: C07C17/08
Filed: 1940-05-09
Abstract: 539,252. Alkyl halides. STANDARD OIL DEVELOPMENT CO. May 9, 1940, No. 8348. Convention date, July 17, 1939. Drawings to Specification. [Class 2 (iii)] Alkyl halides are produced by reacting an olefine with a hydrogen halide in an inert solvent containing not more than 2 per cent. of dissolved aluminium halide. Examples 4, 6 and 7 describe the production of ethyl chloride from ethylene and hydrochloric acid in the presence of an ethyl chloride solution containing not more than 2 per cent. of aluminium chloride, other examples being given of comparative results using higher proportions of aluminium chloride. The Specification as open to inspection under Sect. 91 includes the use of other metal halide catalysts such as bismuth antimony and vanadium trichlorides and ferric chloride, and includes a claim to all the examples. This subject-matter does not appear in the Specification as accepted.
Patent GB-562231-A (GB)
Title: Filtering arrangements, more especially for aircraft
IPC: F02M35/16
Filed: 1942-11-19
Abstract: 562,231. Aircraft air-intake filters. VOKES, C. G. Nov. 19, 1942, No. 8378/44. Divided out of 562,203, [Group XXVIII]. [Class 4] Air filters 1 of the kind described in Specification 562,203 are arranged in an inclined position across the air intake duct of an aeroengine cowling 2 and, in one form, are made in two curved parts which can be displaced laterally into pockets to provide an open intake when required. The meeting edges have packing 10 to seal the joint when the filter is in use. The two filter panels may be each made up of smaller sections articulated at their edges. In another form, Fig. 9, the two filter panels are hinged to the sides of a scoop 12 and normally extend across the entrance to a passage 13. The sides of the scoop have false sections 15 which are pressed back by studs 14 on the filter panels when the latter are turned down against the sides of the scoop so that a small reverse flow to holes 16 can take place through the filter panels to clean them while they are not in use. Specification 558,088 is referred to and 558,081 is referred to in the Provisional Specification.