baber/WOPTO huggingface dataset:
Patent GB-878165-A (GB)
Title: Electrostatic coupling
IPC: F16D27/00
Filed: 1959-10-02
Abstract: 878,165. Electrostatic couplings. CREED & CO. Ltd. Oct. 2, 1959 [Oct. 8, 1958], No. 33483/59. Class 35. [Also in Groups XXIV and XXV] An electrostatic coupling between a reciprocating driving member 1 and driven member 2 comprises oppositely-arranged flat ends 5, 6 coated with aluminium foils 7A, 7B electrically insulated from each other by an oxide layer on the surface of each to form a capacitor which becomes charged when the coupling is energized, thereby causing attraction between the members. The members 1, 2 are of nylon and are guided in bearings 3, 4, the driven member being held in the disengaged position by a spring 11 which is weaker than the electrostatic force. The member 1 is driven from a crank 10. Contact brushes 8, 9 applied to the foils 7A and 7B wipe over contact-bars 12, 13 which are connected to a source of voltage 14 and a switch 15. The invention is applied to a punch of a tape perforator, as shown in Fig. 4, in which the punched drive 16 is connected with the punch head 17 by means of a toggle joint 18. If perforation of a tape 23 is not to take place, the coupling 1, 2 is energized and by means of a link 22 moves the toggle joint 18 to the angled position shown dotted. In a modification, a driving member 25, operated from a crank 24, slides to and fro on a driven portion 26 when the coupling is not energized. In a further modification, the dielectric comprises a thin member 27 of electrically insulating material stretched between the driving and driven members 1, 2, and this can also act as a restoring spring for the follower 2.
Patent GB-176107-A (GB)
Title: An improved latch for coupling pins and like members of railway and other vehicles
IPC: B61G1/30
Filed: 1920-11-27
Abstract: 176,107. Mitchell, J. Nov. 27, 1920. Couplings, automatic and non-automatic. - In a coupling for railway or like vehicles of the type in which a pin, locking-bar, or like member is inserted to lock the coupling, a latch is provided for retaining the pin or member in the position in which it has been set; this latch comprises two links pivoted together, the ends being pivoted to the coupler head and pin respectively so as to form a toggle-joint which in the extended position supports the member, the toggle-joint in this position having slightly passed its dead-centre so as to rest against the pin or member and retain it in that position. The pin B is supported in the raised position by links D, E which have just passed beyond their dead position, a web d<1> resting against the pin B and preventing further movement. On pulling the projection I of the link D in a direction away from the pin, the joint F is broken and the pin released. The latch may also be applied to the vertical locking bar of the automatic coupling described in Specification 161,837.
Patent GB-443259-A (GB)
Title: Apparatus for effecting the proportional delivery of combustible and combustion-supporting media to furnaces and the like
IPC: F23D14/60
Filed: 1934-11-22
Abstract: 443,259. Fluid-actuated valves. KEITH & BLACKMAN CO., Ltd., J., and KEITH, G., 27, Farringdon Avenue, Farring- don Street, London. Nov. 22, 1934, No. 33569. [Class 135] An apparatus for effecting proportional delivery of combustible and combustionsupporting media supplied by separate conduits to a consumer, comprises a manually adjustable obturator 7 in the gas conduit, the pressure across which is maintained a function of the rate of flow in the air conduit. This is accomplished by a butterfly valve 5 actuated by a diaphragm 3 subject on one side to the conduit pressure between two valves 5, 7 and on the other to air pressure under the control of a tubular-lift auxiliary valve 15. This valve, which is adapted to seat on one wall of the casing is connected to a pair of diaphragms 13, 14 arranged in a casing to provide four chambers 11, 12, 17<1>, 18. The chambers 11, 12 are connected by pipes 8, 9 either to pitot tubes in the air conduit 10 or to opposite sides of a throttling disc in that conduit. The chamber 171 is coupled by a pipe 17 to the gas conduit on the downstream side of the obturator 7. The chamber 18 is connected by pipe 19 with the chamber 20 behind the diaphragm 3 and by the tubular valve member with the chamber 11. The tubular valve member may be replaced by an external pipe connection.
Patent GB-732337-A (GB)
Title: Improvements relating to packages for sutures, ligatures, filaments, tapes and the like
IPC: A61B17/06
Filed: 1953-12-03
Abstract: 732,337. Packages. DAVIS & GECK, Inc. Dec. 3, 1953 [March 27, 1953], No. 33612/53. Class 94 (1). [Also in Group VI] Tapes or filaments 8, e.g. sutures or ligatures, are arranged parallel to one another and enclosed loosely in a long envelope 3 formed by securing together by adhesive 5 the edges of superposed webs 4, Fig. 3, or a folded web 6, Fig. 4, the envelope being provided with length markings 9, 12 so that it may be cut to provide tapes or filaments of predetermined length. The marks 12 are 3 inches apart, the usual length of a suture or ligature, and the marks 9 ¢ inch apart. The envelope may be wound into roll form or folded in zig-zag manner and enclosed in a receptacle 1 with a dispensing aperture 2.
Patent GB-1319107-A (GB)
Title: Surface speed control of spindle-related numerical control system
IPC: G05B19/18
Filed: 1970-07-10
Abstract: 1319107 Numerical control of machine tools ALLEN-BRADLEY CO 10 July 1970 [10 July 1969] 33716/70 Heading G3N In a machine tool with relative rotation between the workpiece and tool, the tangential velocity of the workpiece relative to the tool is kept at a desired value. A frequency controlled oscillator 33 provides, via flip-flop FF 1 , and AND gates 34, 35, antiphase signals of frequency f 2  respectively to a pulse rate multiplier 36 whose output pulse frequency represents a desired feed speed, and to an encoder 15 controlling the production of pulses of frequency f o . The pulses of frequency f o  are a measure of the actual angular velocity of spindle 10, and are multiplied in 31 with the count of a register 30, representing the transverse displacement of the tool (10a) Fig. 1 (not shown) from the rotation axis, so that the product represents the actual feed speed. The signals f 2 .SFM and f o .X appearing at the outputs of OR gates 37, 32 and representing respectively the desired and actual tangential velocities are fed to JKflip-flop FF 2 , receiving also a control signal 2f 2 , so that if f 2 .SFM > f o .X an output from AND gate 38, of frequency proportional to the difference, increments counter 40 to speed up the spindle 10. If f o  .X >f 2  .SFM a corresponding decrement occurs, a signal being provided via AND gate 39, and the spindle slows down. The means by which FF2, 38 and 39 provide the required signals is described. Complete numerical control system, Fig.1 (not shown) Numerical data is supplied to tape reader (11), each block of data representing desired increments, (#X, #Y) of the tool position, and also, for example, feedrate data in inches per revolution (1PR). The co-ordinate data may be in absolute form. The feedrate generator (18) receives inputs representing the spindle speed f o , the feed (1PR), and the quantity 1/D, where D is the displacement corresponding to co-ordinate increments #X, #Y, and outputs a signal representing f o .(1PR). 1/D. to a contour generator (20) providing pulse trains (P x , P y ) control the machine servo-mechanisms. The prime movers (23) are actuated until the desired, and actual positions determined by transducers (24, 25), are the same. The control unit (14) provides sequencing signals for the machining operations. The transducer (16) geared to the spindle provides pulse trains of frequency proportional to the speed and in quadrature on leads (A, B), and may also provide one pulse per revolution for a synchronous starting position. The contour generator may employ a system of linear or curvilinear interpolation to provide the pulse trains (P x , P y ) to control the servos. The sign of each increment is also transmitted to the servo control (22). An "end carry" signal is given when a required increment has been made. Tool movement may take place in more than two co-ordinate directions.
Patent GB-201101-A (GB)
Title: An internal-combustion turbine
IPC: F02C5/02
Filed: 1922-12-11
Abstract: 201,101. Scott, S. E. Dec. 11, 1022. Working-fluid supply.-A turbine driven by combustion products comprises a rotor B encircling a stator A which carries compression cylinders F, the pistons of which are operated by a cam I and links G, K. Gas is drawn in to the cylinder F when the end D<1> of a tube D connected to the cylinder F registers with an opening E in the rotor; after compressing the gas the piston is held stationary for a time by a lock arm 2 on a bell-crank lever L which is released by a cam J. The gases are fired by a plug on the rotor B and impinge on recesses B<4>, finally exhausting through openings B<5> which may be fitted with blades S. The tube D may be fitted with a rotary valve and may also have means such as a screw plunger for varying the combustion space. Cowls Q may be provided to supply cooling air. Oil jackets may also be provided.
Patent GB-386408-A (GB)
Title: Improvements in or relating to hoisting machinery
IPC: B66D1/02
Filed: 1931-12-05
Abstract: 386,408. Derricks ; winches. CHAPMAN & CO., Ltd., C. and WOODESON, W. A., Victoria Works, Gateshead-on-Tyne. Dec. 5, 1931, No. 33793. [Class 78 (iv).] A winch, for use with any one of a number of derricks, is movable along a runway while in interengagement therewith, the runway thus resisting lift of the winch when under load in any position. Figs. 1 and 3 show the application of the invention to a hoisting-and-slewing winch of the type described in Specification 291,222, [Class 78 (iv), Loading &c.], the winch being mounted on the deck of a ship for use with port and starboard derricks 19, 20. The winch is provided with a carriage 2 having wheels 4 engaging channel members 1, the flanges 6 of which resist lift of the winch. The carriage may be clamped to the members 1 by bolts 8 engaging the flanges 6, and be traversed through bevel gearing which is driven through a clutch 18 by the shaft of the slewing barrel 9.
Patent GB-447831-A (GB)
Title: Improvements in or relating to typographical slug casting machines
IPC: B41B11/72
Filed: 1934-11-26
Abstract: 447,831. Type-bar-making machines. MERGENTHALER LINOTYPE CO., 29, Ryerson Street, Brooklyn, and ACKERMAN, W., Towners, both in New York, U.S.A. Nov. 26, 1934, No. 33907. Addition to 365,289. [Class 100 (iii)] Trimming type-bars; moulds.-In the trimming-mechanism described in the parent Specification, in which an individual reciprocating knife is employed with each mould for trimming the back of the slug, the knife-slide is operated by means arranged to intercept it during the rotation of the mould-disc. This enables the guides of the knife-slide to be confined within the limits of the mould, so that a longer mould can be used for casting the long low slugs used in printing telephone books &c. The mould is formed of lower and upper parts B<1> B<2>, Fig. 12, the end walls being integral with the lower part, so that separate liners are not required. The mould is of greatly reduced depth, and its back is spaced from the front face of the mould disc C, Fig. 13, so as to leave a recess B<4>, in which the knife-slide B<6> can move. During the rotation of the mould from casting to ejecting position, a pin B<7> on the knife-slide is arrested by a stop E, Fig. 1, which is projected into its path. The stop E slides in a bracket E<1> mounted on the mould-disc slide, and is advanced towards the disc and retracted therefrom by levers and a cam E<15> on the hub of the disc. The stop is also moved laterally to compensate for the varying distance of the pin B' from the centre of the mould-disc as the knife-slide traverses the mould. This is effected by additional cams, which impart a reciprocating movement to the bracket E<1>. In order to return the knife-slide to normal position before ejection of the slug, an actuating-element F is projected towards the mould-disc and behind the pin E'. After the retraction of the stop B<7>, the element F is given a speed considerably faster than that of the mould-disc, so as to carry the knife-slide before it. This is effected by a lever G, mounted on the mould-disc slide and linked to the element F. The lever G is operated against the tension of a spring G' by a lever G<3>, an arm G<4> of which is engaged by a cam G<6> on the mould-disc. The pin-actuating element F is constrained to move in the same path as the pin B<7> by a curved slot F<1> in a bracket F<2> secured to the mould-disc slide, and is moved towards and away from the disc by engagement with suitably formed grooves in the upper and lower faces of the slot F<1>. Displacement of the slug in the mould during trimming is prevented by pins h<3>, Fig. 12, which are projected into the mould-cavity during casting by a parallel-motion bar H<1> operated by a cam. The two end pins are projected right across the mould, and produce notches in the ends of the slugs, to receive ribs on the trays or galleys in which the slugs are stacked.
Patent GB-363782-A (GB)
Title: An improved means of adjusting the level of railway track
IPC: E01B3/20
Filed: 1930-11-11
Abstract: 363,782. Railway sleepers. TRACY, P., 31, St. Mary's Road, London. Nov. 11, 1930, No. 33947. [Class 104 (ii).] Wedges D of wood &c. are arranged under metal sleepers A for the purpose of adjusting the level or cant of the rails. After adjustment, the sleeper and wedges may be connected by spikes &c. Anchoring tongues E may be turned down out of the sleeper top to engage the ballast.
Patent GB-1002722-A (GB)
Title: Improvements in and relating to the dehydration of gypsum
IPC: C01F11/46
Filed: 1962-09-05
Abstract: <PICT:1002722/C1/1> Calcium sulphate hemihydrate is prepared by calcining gypsum at atmospheric pressure under a partial water vapour pressure p calculated from p=aC+b to give physical properties of selected predetermined value C, where a and b are constants characteristic of the natural gypsum.  The physical properties may be heat of solution, density, Vicat set time; or may be consistency, set time, compressive strength of a mixture of hemihydrate, sand, water and a retarder.  The process is carried out for certain values of p, and the values C of the various properties of the hemihydrate formed are measured.  Diagrams of p versus C are drawn up, from which values of p corresponding to required values of C can be determined directly.  The apparatus has an inner column 2 of temperature resistant glass pipe units, heated by air cabinet 3, the temperature of which is controlled by electric heaters 6, while air circulation is maintained by blower 21. Air preheated at 9, is introduced into extension 11 and is allowed to reach 140 DEG  to 150 DEG  C.; plate 23 is then removed; the gypsum charge, of particle size 100-325 mesh, introduced, whence it falls into the fluidization zone above plate 14.  The charge is heated in the air stream to 100 DEG  C. when steam is added to the air stream at 12, and calcination is effected at 100-140 DEG  C.  Effluent gases pass through 15, condenser 16, to atmosphere at 17.  The pressure drop across plate 14 and the gypsum charge is maintained constant by control of air and steam flow.  From the total air flow and total volume of condensate in 16, the average ambient water vapour is calculated. The product is aged to hydrate anhydrite by exposure for a week in air at ambient conditions, for 3 days at 70 DEG  F. and 50% humidity or for 14 days at 70 DEG  F. and 65% humidity.
Patent GB-1469559-A (GB)
Title: Facsimile receiver
IPC: H04N1/032
Filed: 1974-08-01
Abstract: 1469559 Facsimile receiver COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 1 Aug 1974 [6 Aug 1973] 33973/74 Heading H4F A facsimile receiver comprises a chassis 1, Fig. 1, pivotable between an operative position shown in Fig. 1 and an inoperative position in which a paper supply roll 4 and printing bar 9 may be accessed. The chassis 1 pivots about the supply roll axis 46. A drum 2 provided with a printing helix is mounted on the main frame of the receiver and rotates about an axis parallel to that of the roll 4. The chassis 1 carries a printing bar 9, presser roller 6 and guide roller 7. In the operative position the printing bar 9 pinches the paper 44 against the printing helix 25, the presser roller 6 pinches the paper 44 against a drive roller 3 mounted on the main frame, and guide roller 7 guides the paper between the printing elements. Drive is provided by a motor 20 and gears 21, 22. The chassis is located in the operative position by engagement of the guide roller shaft 12 in V slots 11. In operation the printing bar 9 reciprocates to spread the wear distribution therealong. The bar 9 is fixed to a member 90 which slides on a yoke 80, the yoke being connected to a plate 83 controlled by the combined action of springs 51, 84 as described in Specification 1,469,560. A slider 91 fixed to member 90 engages an elliptic groove 70 in the guide roller to produce the reciprocations. Printing is effected by the passage of current between the printing members.
Patent GB-1403012-A (GB)
Title: Epitaxial process for producing linear integrated power circuits
IPC: H01L27/06
Filed: 1972-07-20
Abstract: 1403012 Integrated circuit manufacture ATES COMPONENTI ELETTRONICI SpA 20 July 1972 [15 Dec 1971] 33984/72 Heading H1K An integrated circuit comprising complimentary vertical and lateral transistors and a resistor is formed by the steps of epitaxially growing an N type layer over a surface of a P type silicon substrate containing diffused N+regions, prediffusing acceptor material into areas intended to form an isolation zone and then diffusing donor impurity into a collector contact area for an NPN transistor overlying part of one of the N+regions while the acceptor is diffused further to complete the isolation zone, forming an oxide mask with windows exposing areas overlying the N+regions for a resistor, the emitter and collector regions of a lateral PNP transistor and a highly conductive portion of the base region of the NPN transistor, prediffusing a high concentration of acceptor into the exposed areas, extending the window for the NPN transistor base, prediffusing a lower concentration of acceptor into the newly exposed areas and heating to cause diffusion from the prediffused areas. Further oxide masking is provided to give the structure of Fig. 15 and donor impurity diffused through the windows to provide the emitter and a collector contact zone of the NPN transistor at 25, 26 and the base contact of the lateral PNP transistor at 27. Contacts are then provided by aperturing oxide masking and etching metal deposited thereover. In a modification the NPN transistor has a comb-shaped base region with collector contaets extending between and parallel to the teeth of the comb and with a plurality of emitters extending normal to them, highly conductive portions of the base lying between the emitters and extending to metal strip contacts running along the teeth.
Patent GB-466519-A (GB)
Title: Improvements in air or gas washing apparatus
IPC: B01D47/02
Filed: 1935-12-09
Abstract: 466,519. Washing gases. STOTT, O. Dec. 9, 1935, No. 34036. [Class 55 (ii)] Air or other gas is washed by passage between a series of inclined division plates b and through elements c each comprising sheets c<1>, c<2>, c<4> of expanded metal with means for spraying water located in corrugated expanded metal d between the sheets of each element. Liquid is sprayed down at an angle of 45 on to the sheets from nozzles in pipes e connected to headers h and falls on to the inclined plates b, passing thence to collecting troughs j from the ends of which it is discharged against bent anti-splash plates n into a large trough m. The expanded sheets f above the nozzles remove excess moisture.
Patent GB-514135-A (GB)
Title: Apparatus for contacting vapours and liquids
IPC: B01D3/18
Filed: 1938-11-24
Abstract: 514,135. Treating liquids with gases. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Nov. 24, 1938, No. 34240. Convention date, Nov. 29, 1937. [Class 55 (ii)] In a column for treating liquids with gases or vapours comprising superimposed plates, centrally converging baffles 2 divide the plates into at least three sections each with individual supply and overflow conduits 3 so that the flow of descending liquid is divided into a corresponding number of parallel streams following similar and gradual spiral paths. The gases ascend through openings in the plates (not shown) which may have bubble caps. Weirs 5 form with the baffles and column wall a seal compartment surrounding the lower end of the conduits 3, and weirs 6 or an upstanding portion of the conduits on the next higher plate serve as dams to maintain a level of liquid on the plate. The Specification as open to inspection under Sect. 91 refers to columns of other than circular shape and to an offset relationship of the baffles on one tray to those on adjacent trays with a vertical arrangement of the downflow pipes. This subject-matter does not appear in the Specification as accepted.
Patent GB-1440092-A (GB)
Title: Gas discharge display devices
IPC: H01J11/12
Filed: 1973-07-18
Abstract: 1440092 Matrix displays OWENS-ILLINOIS Inc 18 July 1973 34244/73 Heading G52 [Also in Division H1] Display apparatus comprises a gas discharge display/memory panel 9 with crossed conductor arrays 12, 13 insulated from the gas; sources 32, 33 of sustaining potentials and addressing circuitry for applying read and erase pulses to selected conductors coupled to the conductors via gas discharge devices RG, CG, e.g. neon gates having a breakdown voltage substantially lower than the panel. The sustainer sources are also coupled to the conductors via gas discharge devices 35, 36. The addressing circuits include resistors R 1  ... R 4  connected to separate pulse generating circuits, and resistors R 5 , R 6  connected to a common terminal. The circuit elements comprising thick film resistors and neon cells are formed in the panel The panel may include inner and outer sealing members surrounding the display cells only and all the cells respectively to allow the display and neon cells to be maintained at different pressures. Alternatively the panel may be enclosed in another envelope.
Patent GB-322325-A (GB)
Title: Improvements in means for securing the ends of circular brushes such as those used in combing and like machines to brush caps
IPC: A46B13/00
Filed: 1928-11-22
Abstract: 322,325. Singleton, C. Nov. 22, 1928. Securing brushes on shafts. -A brush-base 5 is secured to a brush-cap 6 by snugs 10 sliding in dovetail slots 7 in an annular extension 4 of the base fitting into a flange 9 of the cap. The snugs have a dovetail cross - section and flanges, 11, of curvature equal to that of the inner surface of the extension, and the base is secured to the cap by screws 12 passing through holes 8 in the flange, and engaging threaded boles in the snugs.
Patent GB-1471357-A (GB)
Title: Photoelectric detector
IPC: G01S17/04
Filed: 1974-08-05
Abstract: 1471357 Presence detection OMROM TATEISI ELECTRONICS CO 5 Aug 1974 [8 Aug 1973 13 Aug 1973] 34424/74 Heading G1A A photo-electric detection device of an object 1 comprises a cylindrical housing 5 provided with two parallel bores 6a, 6b containing a luminescent diode 2 and a phototransistor 3 that are spaced from the open ends of the bores in order to reduce the "directivity" of the device. A further bore 6c contains a further luminescent diode 4 intended to indicate whether or not the device is being activated. The ends of the bores may be covered by one 7 or more infrared filters that may themselves be covered by a nameplate containing slits, to further restrict the field of view of the device.