baber/WOPTO huggingface dataset:
Patent GB-478265-A (GB)
Title: Sewing machine
IPC: D05B73/12
Filed: 1936-07-17
Abstract: 478,265. Sewing - machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.) July 17, 1936, No. 19823. [Class 112] In a sewing-machine for hemstitching &c., the feed bar 28 is reciprocated by rockers 31 and is lifted about the shaft 30 by a rocker 36 engaging a slot 37 in the bar, dwell-producing means being inserted in the transmission between the driving shaft 5 and the rocker 36 to delay the action of the latter until the needle has made a number of stitches. The rockers 31 are actuated by the main shaft 5 through an eccentric rod 39 connected at its lower end to a pivoted segment 40 having a T-slot 40x engaged by an adjustable slide block 42 at the upper end of a link 43 connected at its lower end to an arm on a shaft 32 carrying the rockers 31. The rocker 36 for lifting the feed dog is actuated by a crank disc 46 on a shaft 45 driven by the shaft 5 through reduction gear 48, 49. The disc 46 actuates an elbow lever 50 fulcrumed on the free end of a radius arm 52 pivoted on the shaft 41. The lower arm of the lever 50 is pivoted to one end of a bent link 54 which is pivoted at its other end to one arm 56a of an elbow lever 56, the other arm 56b of which forms a toggle with a link 58 pivoted to a radius arm 34x on the shaft 34 carrying the rocker 36 of the feed dog lifter. The linkwork 50, 52, 54 forms a first dwell-producing means. and the linkwork 56, 58 forms a second dwellproducing means, between the shaft 45 and the shaft 34.
Patent GB-900285-A (GB)
Title: Prism or mirror system for the adjusting of parts of optical instruments
IPC: G02B27/14
Filed: 1960-06-07
Abstract: 900,285. Prism systems; microscopes. ZEISSSTIFTUNG, CARL, [trading as ZEISS, C. [firm of]]. June 7, 1960 [June 9, 1959], No. 19868/60. Class 97 (1). An optical instrument includes a beam splitter and recombiner including partially transmitting as well as full reflectors so arranged that the part beam reflected by the first semi-reflecting surface travels (before re-combining therewith) through a different optical path length from the part beam which is transmitted by said surface, this beam splitter being arranged in use between two objects (e.g. diaphragms) at different axial distances from an image forming system so that an image of one object is formed in coincidence with an image of the other object. As shown in Fig. 2, as applied to a microscope having an objective 3, incident light from the axially spaced fixed diaphragm 1 and aperture is diaphragm 2 is split at a semireflecting surface 4<SP>1</SP>. The transmitted part beam a is again transmitted at 5<SP>1</SP> so that the objective 3 forms an image of the diaphragms 1, 2 at la, 2a respectively. The part beam b, which is reflected at 4<SP>1</SP> is internally reflected by a prism 6<SP>1</SP> on to the surface 5<SP>1</SP> and thence into the objective 3, whereby further images 1b, 2b are formed of the diaphragms 1, 2 respectively. The prism 6<SP>1</SP> is mounted on a carriage 18 slidable under the control of a screw 19 in a direction at right angles to the optical axis of the objective 3 so that the image 1a of diaphragm 1 is brought into coincidence with the image 2b of the diaphragm 2. Alternatively, the prism 6<SP>1</SP> may be fixed to the prisms having the semireflecting surfaces 4<SP>1</SP>, 5<SP>1</SP>. In another form, Fig. 3, the incident light is reflected at 13 on to a semi-reflector 15 whereby part of the light is returned through the semireflector 13, while part of the light is incident on a tetrahedral mirror 16 and reflected thereby through surfaces 15 and 13. A further form is described (Fig. 4, not shown), in which the semi-reflecting surface 15 is omitted and a second tetrahedral mirror is provided to return along its own path the part beam which is transmitted at the surface 13.
Patent GB-640467-A (GB)
Title: Thumb screw and method of making same
IPC: B21K1/44
Filed: 1947-07-24
Abstract: 640,467. Screws. OHIO NUT & BOLT CO. July 24, 1947, No. 19920. Convention date, May 28,1942. [Class 89(i)] [Also in Group XXII] A thumb screw has the shank ending in a flange 5 carrying wings 27 connected thereto by fillets 26, of substantial radius, extending across the entire width of the flange.
Patent GB-438537-A (GB)
Title: Improvements in apparatus for serving beer at bar or like counters
IPC: B67D1/08
Filed: 1934-07-06
Abstract: 438,537. Serving beer &c. COCKRAM, W. T., and BRISTOL BREWERY GEORGES & CO., Ltd., 1, Bath Street, Bristol. July 6, 1934, No. 19923. [Class 116] A bar or counter fitting for serving beer or other beverages comprises a tubular base member f clamped by a nut h to the counter &c. and surmounted by a glass sight chamber a closed at its upper end by a faucet fitting b, the sight chamber and the faucet fitting being secured by a nut screwed on to a central rod i which is screwed into the base member.
Patent GB-878063-A (GB)
Title: Improvements in the production of dimethyl terephthalate
IPC: C07C51/44
Filed: 1959-06-11
Abstract: A process of manufacturing dimethyl terephthalate by oxidising para-xylene or mixtures containing para-xylene and para-toluic methyl ester in a reaction zone with oxygen or an oxygen containing gas at an elevated temperature, preferably in the presence of an oxidation catalyst, esterifying the oxidation mixture with methanol at an elevated temperature, preferably under pressures of from about 20 to 250 atmospheres and further oxidising the esterification products of the crude esterification mixture, possibly after it is freed from dimethyl terephthalate, by recycling to the said process or by oxidising the products per se with oxygen or an oxygen-containing gas, esterifying the oxidation mixture and isolating the dimethyl terephthalate comprises the improvement of distilling the esterification products, before they are further oxidised, with methanol vapour from the crude esterification mixture and separating them by removing methanol and water and possibly dimethyl terephthalate from the distillate of this condistillation.  The term condistillation is employed to mean the distillation method wherein methanol vapour, preferably superheated is passed through a liquid crude esterification mixture, thereby volatilizing two or more components of the mixture.  The mixture obtained from the condensate after separation of the methanol is oxidised with oxygen or oxygen containing gases preferably after the addition of fresh para-xylene and an oxidation catalyst such as lead or zinc acetate, cobalt naphthenate, manganese cumate, cobalt or manganese bromide optionally with the addition of hydrogen peroxide or dibenzoyl peroxide and in the presence of methanol. Examples are furnished in which cobalt ethyl hexanoate is employed as catalyst.  Apparatus for carrying out the processes is described with reference to Figures (not shown). Specification 727,989 is referred to.
Patent GB-643712-A (GB)
Title: Improvements in and relating to circuits for phase-modulation or frequency-modulation of an electrical oscillation
IPC: H03C3/14
Filed: 1946-07-04
Abstract: 643,712. Phase and frequency modulation. PHILIPS LAMPS, Ltd. July 4, 1946, No. 20020. Convention date, July 11, 1942. [Class 40 (v)] Phase or frequency modulation is produced by feeding back to a control grid of an oscillator valve 1, Fig. 7, an amplitude modulated carrier frequency signal derived from but differing in phase by 90 degrees from the anode voltage of the valve, the arrangement being such that the anode/cathode capacity of the modulating valve is not shunted across the oscillator tuning circuit. A condenser 7 of high reactance and resistance 10 feeds to a modulator valve 9, having in its grid circuit a modulator 15, a grid voltage in quadrature with the anode voltage of the oscillator valve 1, and the anode voltage of the modulator valve impresses an equi-phase voltage on the oscillator valve grid 5 by a condenser 12 of low reactance and resistance 13. Alternatively, the condenser 12 and resistance 13 may produce the 90 degree phase displaced voltage and the condenser 7 and resistance 10 an equi-phase voltage. An inductance 22 with blocking condenser 23 compensates for grid cathode capacity of the oscillator and an inductance 18 is included in parallel with the anode resistance 14. The oscillator feed-back is by a reaction coil 3 and resistance 17. If an amplitude limiter succeeds the oscillator the resultant current is OB<SP>1</SP> or OC<SP>1</SP>, Fig. 4, for a 90 degree phase displaced current DB<SP>1</SP> or EC<SP>1</SP>, i.e. amplitude-modulation of the unmodulated carrier current OA results. This is compensated by a condenser 16, Fig. 7, producing a voltage in quadrature with the unmodulated oscillatory current and in phase opposition to the modulatory current EC<SP>1</SP>, preferably of an average value one half of that of EC<SP>1</SP>. Alternatively, Fig. 6, the oscillator anode voltage may be fed back in phase quadrature to valves 9, 91 modulated in push-pull with anodes inductively coupled by series coils 28, 28<SP>1</SP> to the oscillator grid 5, to produce a modulatory current EC<SP>1</SP>, Fig. 4, symmetrical about OA. Negative feedback to the modulator valve 9 (Fig. 7) may be produced by a coil 24 coupled to the anode coil 18 and connected by a low-pass filter 25 and diode 26 to a load resistance 27 in series with the modulator 15, resistance 10 and modulator valve grid 8. Alternatively the modulation may be introduced in the modulator valve anode circuit, Fig. 8 (not shown). Specifications 609,970 and 641,543 are referred to.
Patent GB-446557-A (GB)
Title: Method of recording data relating to the speed of vehicles
IPC: G01P1/12
Filed: 1935-07-12
Abstract: 446,557. Recording - devices. NUSSBERGER, R., 25, Mythenstrasse, Z³rich, Switzerland. July 12, 1935, No. 20024. Convention date, July 12, 1934. Drawings to Specification. [Class 106 (iv)] In devices for recording data relating to the speed of a vehicle, of use for example for determining the speed at the time of an accident, adjacent time and distance marks are made on a moving metal strip by means of a clockwork device and a vehicle-driven device respectively. The Specification as open to inspection under Sect. 91 contains a statement that the marks are cut or impressed on the strip. This subjectmatter does not appear in the Specification as accepted.
Patent GB-350754-A (GB)
Title: License card holders for motor vehicles
IPC: B60R13/10
Filed: 1930-07-02
Abstract: 350,754. Licence holders for motorvehicles. NEALE, R. W., 68, Graham Street, Birmingham. July 2, 1930, No. 20025. [Class 73.] In a licence holder of the kind that is affixed to the windscreen by adhesive, the back cover c<2> is frictionally held in position by means of a spring e secured to the rim a3. Opposite the spring the cover and rim may be provided with indentations forming a snap fastening.
Patent GB-889822-A (GB)
Title: Matrix for computers
IPC: G11C11/06
Filed: 1960-06-08
Abstract: 889,822. Magnetic information-storage apparatus. INDIANA GENERAL CORPORATION. June 8, 1960 [June 22, 1959], No. 20146/60. Class 40 (9). In a three co-ordinate storage matrix coinprising a stack of two co-ordinate planes, stiff column and row wires 20, 20<SP>1</SP> have shank portions 21, 21<SP>1</SP> extending through the cores of a plane and integral angle portions 22, 22<SP>1</SP> providing direct connections by means of hooked ends 23, 23<SP>1</SP> to the corresponding wires of the next plane. The connections are finished by dip-soldering when the matrix assembly is completed. As shown, the cores of each plane are secured by adhesive to a metal or plastic plate 10, 10<SP>1</SP> having notches 18 for guiding and locating the column and row wires, the cores being initially positioned by a jig in known manner. Due to its stiffness, the matrix wiring is self-supporting. The plates are mounted in spaced relationship on rods 16 fitted with spacers 17, the rods passing through holes 14 in extended corner portions 13 at two or all four corners of each plate. Apertures (not shown) may be provided in the plates for the circulation of a temperature regulating fluid.
Patent GB-188729-A (GB)
Title: Improvements in and relating to coin-freed apparatus for delivering measured quantities of liquids
IPC: G07F13/02
Filed: 1921-08-15
Abstract: 188,729. Bailey, G. C. Aug. 15, 1921. Fixed-chamber apparatus for liquids; valve systems for; varying quantity measured in.-In coin-feed apparatus for delivering measured quantities of liquid having inlet and outlet pipes with interconnected valves, the connecting link for these valves is made adjustable in length so that the cocks may be timed, and means are provided in the coin-feed mechanism for preventing the valves from being open together. The measuring-chamber 4, provided with an adjustable screwed plug 6. an air valve 8, a gauge glass and inlet and outlet valves, is situated in a standard, and beneath it are arranged the operating-levers, which lie on a flat plate. The valves have lever heads and are connected by an adjustable rod 5; one valve is also connected by a link 9 with a lever 10 pivoted to the base-plate at C and having an arc cut from it in which works an operating-lever 12 with a handle projecting through a horizontal slot in the standard. This lever is normally kept in the position shown in Fig. 1 by a spring 14 fixed to a curved plate 13, and the coin A drops so as to lie flat within the arc. A pivoted rod 15 has a hook projecting outside the standard from which the flexible supply pipe hangs, and a pawl 17 which drops on to the base plate when this pipe is unhooked. On moving the handle 12 the lever 10 will be deflected by the coin so as to close the inlet valve and open the outlet; the coin being forced between lever 10 and the curved plate 13, Fig. 1A. which has a roughened edge, prevents backward movement of the lever 10. During its movement the lever 12 slips under the pawl 15, Fig. 2, so that its return is prevented until the delivery pipe is again hooked up, when the lever will return under the action of the spring, operating the valves so as to close the outlet and open the inlet. A hole B under the arc cut in the lever 10 allows smaller coins than that required to fall direct to the money-box.
Patent GB-1477756-A (GB)
Title: Water-tube boiler
IPC: F22B21/00
Filed: 1975-05-13
Abstract: 1477756 Water tube boilers V J CAROSSO and J Y CAROSSO 13 May 1975 [15 May 1974 28 March 1975] 20217/75 Heading F4A A water tube boiler comprises a tube lined combustion chamber 8, an evaporator tube screen 7, superheaters 6, 6<SP>1</SP>, a convection tube bank 5 of diminishing cross-section, economiser tubes 4 (of less height than other sections of the boiler), and alternative gas outlets 2, 3; a steam/ water drum 1 being arranged above the economiser transversely to the gas flow and two pairs of upper headers 12, 13 entering the drumone pair 12 at the centre of the drum at the steam/water interface, and the other pair 13 at a higher level. Upper 12 and lower 10 headers on each side of the boiler (Fig. 3) are each connected by U-shaped evaporator tubes 19, 20 and by water return tubes 21. The evaporator tube screen 7 is formed from vertical tubes interconnecting the horizontal arms of these tubes 19, 20. In a modified arrangement tubes interconnect the upper and lower headers 10, 12 at the entry of the combustion chamber, and interconnect the drum 1 with headers 10 (Fig 2, not shown). In addition this modification has further tubes 24, 25, Fig. 6, in addition to the tubes 21 adjacent certain of the tubes 19, 20. Tubes 25 are arranged within the boiler and function as a screen, tubes 26 are additional water return tubes arranged outside the boiler enclosure.
Patent GB-1196581-A (GB)
Title: Apparatus for Distributing Granular and Powdered Fertiliser Materials, Grass Seed and the Like
Inventor: GREGORY LIONEL
IPC: A01C15/02
Filed: 1966-06-08
Abstract: 1,196,581. Fertilizer distributers. L. GREGORY. 6 Sept., 1967 [8 June, 1966; 2 May, 1967], Nos. 25552/66 and 20261/67. Heading A1B. Hand held apparatus for distributing granular or powdered material comprises a container 4 and a generally fan-shaped distributer 1 having a narrow supply end and a wider exit end and includes a sheet base 5 provided with upstanding ribs 6 so as to form channels 14 which divide the areas of both the supply end and the exit end equally. As shown a fan-shaped extension apron 2 is releasably attached to the exit end. A delivery throat 3 is provided at the bottom of the container and two angled flaps restrict the rate of flow. In a modification the container includes a tapered funnel portion and a circular rod is movably mounted in the funnel portion to vary the rate of flow.
Patent GB-1055040-A (GB)
Title: Apparatus for treating textiles
Inventor: GORODISSKY LEONID GRIGORIJEVIC
IPC: D06B23/16
Filed: 1964-05-15
Abstract: 1,055,040. Textile treating apparatus. TSENTRALNY NAUCHNO-ISSLEDOVATE LSKY INSTITUTE SHELKOVOI PROMYSHLENNOSTI. May 15, 1964, No. 20280/64. Heading D1L. Textile treating apparatus includes a pressure chamber for treating fluid under pressure having inlet and outlet openings, and, adjacent to at least one of the openings a pair of cooperating rolls relatively movable so that their mutual separation can vary, and sealing means including a part-cylindrical sealing member lying close to and movable with each roll and serving to prevent loss of treating fluid past the rolls. In the arrangement shown a housing 3 for mounting at the inlet or outlet of a pressure chamber has mounted therein two rolls 4,5 pressed against each other and having heat resistant resilient coatings 6 and part cylindrical sealing members 7,8 embracing said rolls. The journals of rolls 4,5 are mounted in roller bearings 12,13 supported in arms 14,15 adjustable in length and secured on shafts 16,17, such that rolls 4,5 can be pushed apart by passing seams &c. whilst at the same time being closely pressed to the fabric. The sealing members 7,8 are also mounted on the shafts 16,17. The journals of rolls 4,5 are sealed with suitable stuffing boxes 18,20,22 and 19, 21, 23 and shafts 16,17 are sealed with stuffing boxes 25,27,29 and 26,28,30. The ends of members 7,8 are sealed with rubber linings 32 and the gap between the ends of rolls 4,5 and housing 3 are sealed by the coatings 6. Sealing between the members 7,8 and the housing 3 is provided by heat-resisting rubber strips 33 which also act as cushioning members when the rolls move. The rolls 4,5 are interconnected and driven by suitable gearing and parts 34,36 help to guide and straighten fabric as it passes through the apparatus. Any fluid passing through the gaps between rolls 4,5 and rings 7 and 8 and emerging at atmospheric pressure is drawn off through pipes 11 (Fig. 1, not shown) by pumps 9 and returned via pipes 10 to the pressure side.
Patent GB-1037556-A (GB)
Title: Improvements in or relating to electrical components
Inventor: LITTLE JOHN
IPC: H01C10/42
Filed: 1963-05-22
Abstract: 1,037,556. Variable resistors. PAINTON & CO. Ltd. May 8, 1964 [May 22, 1963], No. 20322/63. Heading H1S. [Also in Division H2] A potentiometer of the lead-screw type comprises a resistive element 16 which may be in the form of an insulating bar on which is wound or coated the resistive material or may be a bar of high-resistivity material. Electrical connection for the element 16 is provided by end clips 15 bent up from beryllium copper strip and having resilient fingers 18, 33 defining between them a socket in which the element 16 is gripped, the fingers 18 being staggered with respect to the fingers 33 to give a uniformly low resistance over the end portions of the element 16. The wiper (Fig. 2, not shown) comprises a U-shaped resilient metal strip 20 having a limb 23 which bears against the resistive element and having a dimple 25 which engages the thread of a lead screw 5. Electrical connection to the wiper is made by a member 27 against which a limb 26 of the wiper bears. The components of the potentiometer are enclosed in a box of thermoplastic material comprising two halves suitably recessed to accommodate the element 16, the lead screw 5 and the member 27 respectively.
Patent GB-1237255-A (GB)
Title: Ring laser operation
Inventor: BOOT HENRY ALBERT HOWARD
IPC: H01S3/083
Filed: 1968-04-30
Abstract: 1,237,255. Lasers. H. A. H. BOOT, P. G. R. KING, and R. B. ROBERSON-SHERSBYHARVIE. 9 June, 1969 [10 April, 1968], No. 20344/68. Heading H1C. To overcome locking between the two counterrotating beams in a ring laser, either the spatial positions of two of the ring reflecting elements or the effective optical path lengths through two optical transmitting elements within the ring are cyclically varied in opposite senses. In Fig. 1 an active medium L is contained in a reflecting ring formed by plane mirror M1, concave mirror M2 and mechanically-coupled prisms P1, P2, the positions of the prisms being cyclically varied so that the path lengths through them vary in opposite respects. In a modification, Fig. 3, the ring is formed by plane mirrors M2, M3 and concave mirror M1, the mirrors Ml, M2 being mechanically coupled and cylically displaced. Optical transmitting elements C1, C2 are used in Fig. 2. These elements may each consist of an electro-optic cell, e.g. of potassium di-hydrogen phosphate, the refractive index of which is cyclically varied by an alternating field. Alternatively each element may consist of two optical flats spaced by a rubber ring so as to form a cavity containing a transparent fluid, the optical thickness of the fluid being cyclically varied by A.C. energized piezo-electric elements attached to the flats.
Patent GB-646385-A (GB)
Title: Electronic voltage regulator
IPC: H02P9/22
Filed: 1947-07-29
Abstract: 646,385. Automatic voltage control systems. BENDIX AVIATION CORPORATION. July 29, 1947, No. 20437. Convention date, Aug. 14, 1946. [Class 38 (iv)] A carbon pile regulator controls an alternator in accordance with the R.M.S. voltage generated, by means of additional control windings on the regulator, the excitation of which is determined by a temperature limited diode. The carbon pile 29 is in series with the alternator field, connected at F+, and a source of D.C. connected at A+, and is actuated in accordance with the average voltage by a voltage coil 28 connected via rectifier 25 and regulating resistor 23 across the alternator output terminals C, E. Two further coils 36, 37 arranged to oppose or assist coil 28 are energized by a push-pull pair of tetrodes 82, 83. The control grids of these valves are connected to opposite corners of a bridge comprising resistor 69, resistor 75, resistors 73, 74 in series, and a diode 38. Across the other diagonal of the bridge is a smoothed D.C. voltage derived from transformer 57 and rectifier 51, and stabilized by a glow tube 84. The heater of the diode 38 is supplied by a transformer 41 connected via a regulating resistor 47, across the output terminals C, E, so that the space current through the diode varies approximately as the eighth power of the R.M.S. output voltage. Variation of the effective resistance of the diode unbalances the bridge, and by unbalancing the valves 82, 83 varies the currents in coils 36, 37 to restore the output voltage. A condenser 108 connected across the diode improves stability by adding a component proportional to the rate of change of voltage. In a modified system, Fig. 5 (not shown), the heater of rectifier 51 is connected in series with the diode heater to cut out the electronic regulating circuit in the event of a failure of the diode heater ; the glow tube 84 is omitted ; a resistor is connected in series with the condenser 108 to reduce the rate of change component, and a condenser in series with a resistor is connected across resistor 69 to byepass it at high frequency changes in voltage. Specification 608,508 is referred to.