baber/WOPTO huggingface dataset:
Patent GB-1108366-A (GB)
Title: Improvements in or relating to electron microscopes
IPC: H01J37/04
Filed: 1965-06-10
Abstract: 1,108,366. Electron microscopes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 10 June, 1965 [11 June, 1964], No. 24590/65. Heading H1D. In a scanning electron microscope which may be of the transmission or of the mirror type the electron beam focused on the specimen 5 and the reproduced image at 27 are linear in crosssection and the focusing and reproducing electron-optical systems 4, 26 include strong fourpole lenses 7, 28 corrected for spherical aberration. Preferably both systems include further, weak, four-pole lenses 6, 29 relatively rotated by 90 degrees with respect to the strong lenses and may also include eight-pole corrector lenses. In the transmission type microscope shown synchronized scanning deflection systems 3, 31 are provided on either side of the specimen. In the mirror type microscope, Fig. 4 (not shown), the reflected beam is returned through the focusing system and diverged from the main axis in the scanning deflection system which comprises combined electric and magnetic fields. In either type of microscope the electron beam may be stationary and the specimen and the image carrier moved. The image carrier which may be a photographic film or a luminescent screen, may be provided, on a rotating drum positioned outside the vacuum envelope, the beam emerging through a Lenard window. The electron beam may be given its linear crosssection by means of an oblong aperture in the gun anode or by means of a non-rotationallysymmetric electron lens. Magnetic (permanent magnet or electromagnetic) or electrostatic lenses may be used and the strong four-pole lenses may be used in combination with rotationally-symmetric lenses.
Patent GB-1299741-A (GB)
Title: Animal control gate unit
Inventor: SPARKES CLIFFORD SYLVANUS JOHN
IPC: A01K1/06
Filed: 1969-05-14
Abstract: 1299741 Animal holding appliances POLDENVALE Ltd 14 May 1970 [14 May 1969] 24607/69 Heading A5R A door for an animal pen comprises a frame 10 in which hang two hinged gates 20, 24 joined by a pair of pivoted rods 42, 44, the larger gate 20 incorporating a pivoted arm 52 for trapping the animal's head. In operation, the doors are closed, secured by latch 50 and by pulling string 62 the arm is closed about the animal's neck. A pivoted pawl 58 engaging a ratchet 60 locks the fastening arm. When the gate is opened, the pawl slides off the ratchet, the arm is withdrawn by spring (56) and the animal's head is released. To prevent the animal dragging the pen whilst its head is held in the gate, a removable floor may be fitted to the frame.
Patent GB-302407-A (GB)
Title: Improvements in or relating to thermionic valve holders
IPC: H01J5/50
Filed: 1927-09-20
Abstract: 302,407. Mathieu, G. A., and Smith, S. B. Sept. 20, 1927. Vacuum tubes. - Anti-microphonic thermionic valve - holders comprise a frame supported from a panel &c. and carrying one or more resilient diaphragms of stretched material such as rubber, the diaphragms having holes to receive and support the main body of the valve. Rubber diaphragms 3, 4 with central holes of different sizes to receive the bulb 12 of the valve may be stretched across the flat open ends of an ebonite drum 1 and held by metal, fibre or leather bands 5, 6. The drum has supporting plugs 2 connected to the valve contacts through sockets 14 in an ebonite disc 13, flexible wires 15 with spacers 16 connecting the sockets 14 to the plugs 2.
Patent GB-320469-A (GB)
Title: Improvements in dampers for steering heads of motor cycles or the like
IPC: B62K21/08
Filed: 1928-08-29
Abstract: 320,469. Stevens & Co. (1914), Ltd., A. J., and Stevens, J. Aug. 29, 1928. Steering - mechanism. - Damping - mechanism for the steering heads of motor-cycles &c. comprises one or more friction pads 5 (e.g. two semicircular pads) interposed between the tubular steering- stem 2 and the head tube 3 and adapted to be expanded against the inner surface of the tube 3 by mechanism within the steering-stem 2. Each pad 5 is provided with a peg 6 secured to its metal back plate 4 and passed through holes in the walls of the tubular stem 2 so as to engage tapered slots 9 in a plunger 8, which is caused to slide in the stem 2, to expand the pads 5, by means of a rod 10 in screw-threaded engagement with it, the upper end of the rod having a knurled operating head 11. The release movement is assisted by a spring 12.
Patent GB-1005201-A (GB)
Title: Dihydrazino dienes
Inventor: ARGYLE CHRISTOPHER STANLEY
Filed: 1961-07-08
Abstract: Dihydrazino dienes of the general formula <FORM:1005201/C2/1> wherein R1 to R4 are hydrogen or hydrocarbon radicals, e.g. alkyl, aryl, aralkyl or alkaryl, in particular methyl, ethyl, cyclohexyl, phenyl, benzyl or tolyl, or wherein R1 and R2 together with the carbon atom joining them form a six-membered ring, and in particular 2,7-dihydrazino - 2,7 - dimethyl - 3,5 - diene; 2,7 - dihydrazino - 2,7 - dicyclohexylocta - 3,5 - diene 2,7 - dihydrazino - 2,7 - dimethyl - 4,5 - dimethylocta - 3,5 - diene; 2,7 - dihydrazino - 2,7 -dimethyl - 4 - methylocta - 3,5 - diene; 1,4 - di-(11 - hydrazinocyclohexyl)buta - 1,3 - diene, are prepared by reacting a beta-sulphone of the general formula <FORM:1005201/C2/2> with hydrazine, preferably at least 5 moles per mole of sulphone. In the examples, 2,5-diisopropylidene - 3 - sulpholene is converted into 2,7 - dihydrazino - 2,7 - dimethylocta - 3,5 - diene. The starting material is prepared by the condensation of beta sulpholene with acetone using sodium hydroxide or methoxide as condensing agent. This preparation can use aldehydes in place of ketones.
Patent GB-223598-A (GB)
Title: Improvements in and relating to electrical switches
IPC: H01R35/02
Filed: 1924-10-18
Abstract: 223,598. British Thomson-Houston Co., Ltd., (Assignees of Perry, C. L.). Oct. 19, 1023, [Convention date]. Contacts; high-potential switches.-Describes an improved contact for a high-potential switch and an advantageous arrangement of subsidiary contacts. The main movable contact 10, which co-operates with a fixed contact 18, is made by consolidating the ends of a plurality of copper or other flexible strands 11 into a rigid mass, for example, by drop forging. For this purpose a casing 12 is preferably first slipped over the end of the strands. The switch shown in Fig. 3 comprises a member 17 rotatable by electromagnetic or other means about an axis 21 and carrying pivoted to it the main contact 10, an intermediate contact 22 adapted to contact with a contact 24 and an arcing contact 23 adapted to contact with a contact 25. The three contacts 10, 22, 23 break contact successively and the relative time at which the contact 22 opens is adjustable by a nut 27 which limits its movement. The contact 10 is supported on the member 17 by a U-member 31, Fig. 5, and a hook 32, and a spring 33 forms a fulcrum about which the contact can tilt in any direction so as to be self-aligning.
Patent GB-320194-A (GB)
Title: Improvements to pyrometers for hot air furnace gases and the like
IPC: G01K1/20
Filed: 1928-08-30
Abstract: 320,194. Gilbert, W. Aug. 30, 1928. Thermometers.-To avoid errors due to radiation &c. losses in the reading of a thermometer or pyrometer inserted in a conduit &c. the thermometer is surrounded by or enclosed within a number of completely spaced tubes, plates or other surfaces. Fig. 1 shows a form in which the hot junction a of a thermocouple, enclosed in a steel tube b is surrounded by a number of coaxial tubes c - - c4 having their axis parallel to the direction of flow of the hot air &c. the temperature of which is to be measured. The tubes are supported by bolts c<5> on which are mounted porcelain spacing-sleeves c<6>. The tubes may be replaced by a series of parallel plates.
Patent GB-810749-A (GB)
Title: Improved shock tube
Inventor: HILTON WILLIAM FRANK
IPC: G01M9/04
Filed: 1956-08-14
Abstract: 810,749. Aircraft research equipment. ARMSTRONG WHITWORTH AIRCRAFT Ltd., Sir W. G. Aug. 14, 1957, No. 24895/56. Class 4. In a shock tube wherein high temperature and pressure is produced in a gas for a short period of time by the propagation along the tube of an intense shock wave, a combustion chamber 10 is formed in a block 11 held between a casing 12 and a rectilinear tube 13. One end of tube 13 is closed by a diaphragm 14 which acts also as a wall of combustion chamber 10. Passages 15 and 16 are provided for supplying combustible gases, e.g. oxygen and hydrogen, and there is an igniter plug 17 for ignition of the gases. The tube 13 is closed at its outer end by a plug 18 having a concave inner surface 19 forming a reflecting wall. In operation the combustible gases are ignited in chamber 10 and the resulting explosion ruptures diaphragm 14 setting up a shock wave, which travels along tube 13 and is reflected by curved surface 19 back through the gases to any deserved focus, the position of which is determined by the shape of surface 19. The result of the reflected shock wave impinging on the already heated gases is to increase still further the temperature and pressure of the gases in the shock tube.
Patent GB-818237-A (GB)
Title: Improvements relating to temperature compensated voltage regulators
IPC: G05F3/18
Filed: 1956-08-15
Abstract: 818,237. Automatic regulators; temperaturecompensated voltage regulators. GENERAL ELECTRIC CO. Aug. 15, 1956 [Aug. 15, 1955], No. 24971/56. Class 38 (4). A temperature-stabilized voltage regulator comprises a load having a shunt-connected reference voltage device in series with which is a temperature-compensating circuit. In one embodiment the D.C. source 11 is connected through a regulating resistance 15 to the parallel circuit comprising load 16 and voltage reference device 17 with temperature-compensating means 18. The voltage reference device is a semi-conductor diode operated in the inverse voltage breakdown region, i.e. reversely connected with respect to normal current flow from source 11. In another embodiment the reference device is a gas discharge tube, Fig. 4 (not shown). In each case the temperature-voltage coefficient of the reference device is positive and the compensating device is arranged to have an approximately equal, but opposite, temperature-voltage coefficient. Forwardly biased semi-conductor diodes have a negative temperature-voltage coefficient, the numerical value being, in general, smaller than that for either of the said reference voltage devices. Depending upon this value of reference device temperature-voltage coefficient, either one, or several, forwardly-biased diodes are connected in series with said device so that the net coefficient is approximately zero. If a fractional number of compensating diodes appears necessary a shaping network, e.g. a resistance shunt connected with one or more of the diodes, may be provided to give precise compensation.
Patent GB-841613-A (GB)
Title: Improvements in or relating to scaling circuits
Inventor: FRANKLIN ERNEST
IPC: H03K23/76
Filed: 1956-08-16
Abstract: 841,613. Circuits employing bi-stable magnetic elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Aug. 7, 1957 [Aug. 16, 1956], No. 25038/56. Class 40 (9). In a magnetic shifting register or ring counter comprising a number of storage cores L20-L60, each core has a single winding 21 which are connected in series to an input pulse source, and the transfer of a characteristic state from one core to the next is effected by a capacitor C20-C60 which is charged over a rectifier MR20-MR60 and discharges to the adjacent core winding over a resistor R20- R60. Feedback from the last core L60 to the first core L20 is effected by way of a transformer T3. It is stated that the arrangement may be reset to an initial condition by earthing the input and applying a D.C. potential or a pulse train to an output point between the windings on L20 and L30. Specifications 841,614 and 841,615 are referred to.
Patent GB-1057959-A (GB)
Title: Bowls for cooking puddings
Inventor: GROVE-WHITE GEORGE ALEXANDER
IPC: A47J43/20
Filed: 1964-06-17
Abstract: 1,057,959. Lids for cooking vessels. MENDLE BROS. Ltd. June 14, 1965 [June 17, 1964], No. 25111/64. Heading A4A. [Also in Division B8] A bowl for cooking puddings comprises a body 2 and an interlocking lid 4, the body and lid being formed of a heat-resistant thermoplastic material such as polypropylene capable of withstanding immersion in boiling water or use in a pressure cooker. The lid has a peripheral skirt 6 formed with three spaced projections 8 and associated finger grips 12, the projections being engaged beneath, or disengaged from a bead 10 on the body by outward distortion of the skirt by pulling on the lugs 12 in succession. An aperture 14 facilitates distortion of the skirt. A sealing skirt 16 is forced into engagement with the bowl by steam pressure, excess steam pressure raising the lid against the resilient action of the projections 8 so that steam escapes past the skirt 16 and through the apertures 14. In modifications the body is formed of a heat-resistant plastics material and a lug 12 is provided .in association with only two of the projections 8.
Patent GB-778113-A (GB)
Title: Improvements in or relating to seals
Inventor: NENZELL JOSEPH FRANCIS
IPC: F16L23/22
Filed: 1955-09-01
Abstract: 778,113. Moulding joint-seals. MATHEWSON CORPORATION. Sept. 1, 1955, No. 25126/55. Class 87(2). [Also in Group XXVI] Packing formed of rubber or similar resilient material is moulded into interconnected grooves 20, 21 in a metal sealing ring 10 by means of a lower die 30 having a ring-holding cavity 31 and an upper die 34 having a plunger 39 for forcing the packing in a plastic state from a cylinder 38 into the grooves through side or central openings 35, 35a. The dies have raised portions 42, 44 which enter into the grooves to form side fillets 47, 48 and central projections 43, 45.
Patent GB-236090-A (GB)
IPC: A47J31/54
Filed: 1924-10-22
Abstract: 236,090. Riva, O. B. July 2, 1924, [Con. vention date]. Infusing-machines.-In apparatus for the preparation of coffee by infusion, a multi-way tap is provided, so that the various phases of the preparation process are carried out by successive movements of the tap. all waste liquid being conveyed to a sump. The apparatus comprises receivers N, Fig. 1, pivoted to the body of the urn and provided with percolators 4, and multi-way taps A. By movement of the tap A, first steam is conveyed to the percolator by pipe a<1>-a<1>, then hot-water by pipe a-a, and pressure may be released by waste water conveyed away by pipe a<0>-a<0> to the sump M. The percolators 4 are preferably formed with inwardly directing ledges 4<1>, Figs. 4 and 5, and the receivers, may be closed by locking devices as shown in Figs. 2 and 3. Condensation or other waste liquid, which may be caught by the trays P, is conveyed to the sump M. The apparatus further comprises a source of heat F, enclosed in a combustion chamber F<1>, provided with discharge tubes F<11>, submerged in the water in a boiler K. The discharge tubes lead into a space between the boiler walls k and the external casing k<1>. The boiler K is fitted with a level gauge, pressure gauge, and a multiway tap B for the discharge of steam or hot water. A three-way tap C provides for the supply of feed-water to the boiler by the pipes c<1>-c<11>, or by the automatic inlet valve D via pipes c-c<1>, or the discharge of boiler water through pipes c<11>-c<0> to the sump M. The valve 15, Figs. 6 and 7 is controlled by a float 11, through a diaphragm 14, on both sides of which steam pressure from the boiler acts. Water enters the boiler through pipe 17. The preferred form of heating device is a gas burner Figs. 8 and 9, the mixing chamber of which comprises two truncated cones 24, 26, and having a perforated sleeve 23<1> for regulating the air supply.
Patent GB-317241-A (GB)
Title: Game apparatus for providing public amusement
IPC: G07F17/32
Filed: 1928-09-01
Abstract: 317,241. Solomon, M. Sept. 1, 1928. Games of f skill.-A game apparatus for public amusement comprises a coin-holder so balanced as, when a coin is inserted, to be in a state of equilibrium which approximates within any desired limit, to instability, in such a manner that a relatively slight force will tend to cause the coin to be dislodged from the holder. A coin 15 introduced into a shoot 16 descends into a coinholder 3<b> slidable along a wire or rod 2 by means of two cables 4, 4a wound upon drums 5, 5a which the operator may simultaneously rotate by means of handles 6, 6<a>. If the operator succeeds in winding-up the cords at substantially the same rate the coin-holder is drawn forward against the resistance of a counterweight 9 without dropping the coin, which may subsequently be returned to the operator by any suitable means; if the cords are unequally wound the coin-holder will be rocked laterally and the coin will fall out of the holder and be retained within the apparatus. To prevent the apparatus being operated without the insertion of a coin, the drums 5, 5<a> are driven through fricton clutches and a catch 12 prevents the advance of the coin-holder. When a coin is inserted and the handles are rotated the catch is displaced by the pressure of the coin against a bar 14<a> connected to the catch. Obstructing wings may be arranged in the path of the part 3<c> of the coin-holder so that it is necessary, in order to pass the obstructions, for the operator slightly to incline the coin-holder by varying the relative speeds of the winding-handles.
Patent GB-401468-A (GB)
Title: Improvements in cotton dryer felts for use on paper making machines
IPC: D21F1/00
Filed: 1932-09-10
Abstract: 401,468. Drying felts of papermaking machines. HINDLE, T., Thornlea, Beardwood Brow, and LORD, S., Brooklands, Preston Old Road, Cherry Tree, both in Blackburn, Lancashire. Sept. 10, 1932, Nos. 25231/32 and 17181/33. [Class 96.] A cotton dryer felt for use in a paper-making machine is impregnated with a solution or a suspension of an alkaline carbonate, calcium hydroxide, or calcium carbonate to neutralize acid carried to the felts by the paper web. Impregnation with a suspension, e.g. milk of lime, is effected by passing the felt to and fro in a bath of the suspension between squeezing rollers, by spraying, or by forcing the milk of lime through the felt, which is then dried under longitudinal tension. When using a solution, e.g. of sodium carbonate (the concentration varying between 25‹ Twaddle and saturation), the felt is saturated by soaking in a bath or spraying, penetration being facilitated by passing the felt between pressure rollers. It is then dried on slowly revolving cylinders at 90-110‹ C. According to the second Provisional Specification a weak acid salt, other than the carbonate, of an alkali metal may be employed.
Patent GB-1467850-A (GB)
Title: Apparatus for braking a railway bogie at high speed
Inventor: FAGEL ROGER
IPC: F16D66/02
Filed: 1974-06-06
Abstract: 1467850 Vehicle-mounted friction and electromagnetic track brakes ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI 6 June 1974 [12 June 1973 29 Nov 1973] 25239/74 Heading F2E The braking apparatus comprises a fixed part 2 secured to a railway bogie chassis, a part 3 suspended from the fixed part and movable vertically towards and away from the rail 1, a series of electromagnets 7 supported from the lower face of part 3, a brake shoe 8 at each end of, and supported from, the part 3 to bear on the rail on braking to ensure the electromagnets are at a relatively short distance from the rail 1, a device for detecting wear on each brake shoe 8 and apparatus for controlling the position of each shoe as a function of the wear. In Fig. 1, when no braking is taking place, shoe 8 is retained by portion 9 of a lever 10 pivoted at 11 to fixed part 2 and urged leftwards by a spring 12. On initiation of braking, energization of electromagnets 7 causes withdrawal of lever 10 rightwards by the left most electromagnet (the Fig. 1 position) after which part 3 is lowered until shoe 8 contacts the rail. On brake release, if portion 9 of lever 10 fails to make contact with shoe 8 because of shoe wear, lever 10 actuates a valve 18 controlling a pneumatic device 19 which rotates a toothed sector 13 (to which the shoe is secured) clockwise against a pawl 16 to lower the shoe. In Fig. 2, shoe 8 is suspended at one end by a pair of links 23 (one not shown) from part 3 and at the other end by a fork member 25 having a part-screwthreaded rod enclosed in a cylindrical body 26 mounted on part 3. After shoe wear, a motor 27 rotates, through shafting &c. 29 to 32, a nut 33 engaging the rod. Shoe 8 is thereby lowered, its lower face remaining parallel to its original position. Wear may be detected by variation of flow of compressed air from a fixed nozzle pointed at a side of the shoe near the lower face. Alternatively, variation of magnetic reluctance or Hall effect or a mechanical device may be used. The brake shoes may serve as a parking brake on lowering of part 3 without energization of the electromagnets.
Patent GB-1474738-A (GB)
Title: Cephalosporanic acid derivatives the preparation thereof and pharmaceutical compositions containing them
IPC: C07D501/20
Filed: 1974-06-06
Abstract: 1474738 Cephalosporin derivatives FUJISAWA PHARMACEUTICAL CO Ltd 6 June 1974 [6 June 1973 (2) 12 July 1973] 25276/74 Heading C2C Novel compounds I (R 1  is aryl or heterocyclyl; R 2  is pyridyl and R 3  is H, alkylthio, or an optionally alkylsubstituted thiadiazolylthio or tetrazolylthio group; or R 1  is H, aryl or heteroaryl, R 2  is styryl and R 3  is as above) and the sodium salt of the compound I where R 2  is styryl are prepared by reaction of a compound II or a derivative thereof at the COOH group with an acid III or a reactive derivative thereof or by reaction of a compound IV in which R 4  is alkanoyl, or a salt thereof with a thiol R 3 H (R 3  is not H). DL - 2 - cinnamoyloxy - 2 - (2 - thianyl)- acetic acid is prepared by reaction of cinnamoyl chloride with DL-2-(2-thienyl)glycolic acid. D - 2 - cinnamoyloxy - 2 - phenylacetic acid is prepared similarly. 2 - Cinnamoyloxyacetic acid is prepared (1) by reaction of 2 - amino - 2 - hydroxymethyl- 1,3-propane diol with cinnamic acid to give 2 - styryl - 4,4 - bis(hydroxymethyl) - 2 - oxazoline, followed by reaction with metaperiodic acid or (2) by reaction of glycolic acid with cinnamoyl chloride. 2 - Isonicotinoyloxy - 2 - (2 - thienyl) - acetic acid and 2 - nicotinoyloxy - 2 - (2 - thienyl)- acetic acid are prepared by reaction of 2-(2- thienyl) glycolic acid with isonicotinic or nicotinic acid anhydride respectively. Pharmaceutical compositions useful as antibiotics comprise a compound I together with a suitable diluent or carrier.
Patent GB-222680-A (GB)
Title: Improvements in or relating to spindle apparatus for spinning and doubling yarns andthreads
IPC: D01H7/04
Filed: 1923-10-11
Abstract: 222,680. Ferrand, F. Oct. 11, 1923. Spindle apparatus.-In spindle apparatus for spinning and doubling yarns of the kind comprising a positively-driven ring flyer surrounding a spindle which is rotated bv the pull of the yarn and reciprocated to build the cop, a loose washer 12, Fig. 1, is provided between the ballcarrying disc 8, of a centrifugal drag device, fixed on the spindle 5 and the coacting stationary drag plate 11, thus preventing the disc 8 from contacting with the plate 11 when the spindle is lifted by the pull of the yarn during its downward reciprocations. In a modification, an antifriction bearing-member comprising balls mounted in a ring carrier is provided, and is either loosely mounted on the spindle or fixed to one of the members 8, 11. In a further modification, a disc 13, Fig. 2, is mounted loosely on the spindle 5 and normally rests on a ledge 14 on the bracket 3, the balls 10 coacting therewith. When the spindle is lifted, the disc 13 is raised into engagement with the drag plate 11 and operates similarly to the washer 12.