baber/WOPTO huggingface dataset:
Patent GB-849530-A (GB)
Title: Telephone apparatus employing transistor amplifiers
IPC: H04M1/76
Filed: 1957-11-15
Abstract: 849,530. Subscriber's sets. GENERAL TELEPHONE LABORATORIES Inc. Nov. 15, 1957 [Nov. 28, 1956], No. 35707/57. Class 40 (4). A transistor amplifier 50 in a subscriber's set is guarded against damage by reversal of current in the line by a germanium diode rectifier 32-35. The bias applied to the amplifier is maintained substantially constant irrespective of line length by the provision of a silicon-carbide resistor 31 in the loop together with a rheostat 80. An anti-side tone coil 70 of known type is provided. Springs 140 close at all actuation of the dial to shunt all impedances in the substation part of the loop circuit. Sparking is suppressed during dialling by condenser 150 and resistance 153. Negative feed back in the transistor amplifier is provided by elements 55, 56, 57, the amount of feed-back being adjustable. If a high voltage surge opposite to that of the base-emitter bias reaches the transistor input the transistor is cut off and diode 54 conducts, so preventing damage to the transistor. The amplifier components are mounted on a card 30 above the ringer 95, Fig. 3. The volume of the amplifier is controlled by the knob 56b. Reference is made to Specifications 781,135 and 795,620. A metal strip is soldered to resistor 31 to dissipate heat.
Patent GB-488102-A (GB)
Title: Improvements in driving mechanism for printing and like presses
IPC: B41F13/012
Filed: 1936-12-30
Abstract: 488,102. Toothed gearing. HARRISSEYBOLD-POTTER CO. Dec. 30, 1936, No. 35745. Convention date, Jan. 4. [Class 80 (i)] [Also in Group XVI] In a multi-colour printing-press, or other machine in which a series of operations in register are performed on a sheet, the machine is driven in such a way as to preserve accurate register of the sheets. One feature of the invention includes a gear wheel which is arranged in connection with a sheet transfer cylinder so that back lash and wear in the driving-members will not affect the sheetregistration, and the driving force imparted to the sheet transfer cylinder is derived in turn from the cylinder from which it receives the sheet, and the cylinder to which it transfers the sheet. As shown in Fig. 1, applied to a multi-colour offset printing-press, three printing- units each comprising a plate cylinder 13 offset cylinder 14 and impression cylinder 15 are driven independently from a main driving- shaft 19 by means of bevel gears 20 21, 22. The sheets are fed from a table 44 to the first impression cylinder 15 and from this cylinder the sheet is fed in register by gripper cylinders 26, 27, 28 to the next printing unit. The cylinder 26 is geared to the first cylinder 15, and the cylinder 28 to the second cylinder 15, and the cylinder 27 is driven alternately from gears 26<1>, 281 on the cylinders 26, 28. To effect this the shaft 29 of the cylinder 27 is fitted with two gears 30, 31, Figs. 6 and 7, of each of half the width of the gears 26<1>, 281. The gear wheels 30, 31 are each arranged eccentrically on the shaft 29, the wheel 30 being freely mounted and having a flexible connection with the wheel 31 which is fixed to the shaft. The flexible connection comprises a spring 41 arranged between a nut 38 secured to the wheel 30 and a pin 42 fixed to the wheel 31. The grippers 43 of the cylinder 27 are arranged adjacent to the portions of the gears 30, 31 which are farthest from the centre of the shaft 29, and as these portions of the gears engage the gears 26<1>, 28<1>, the drive is transmitted to the shaft 29 alternately from the cylinders 26, 28, and at the times when these cylinders are respectively feeding a sheet to or delivering it from the transfer cylinder 27. In intermediate positions of the gears 30, 31 the springs 41 cause relative movement between the teeth and so all slack is taken up and back lash is avoided.
Patent GB-302232-A (GB)
Title: Flying-boat
IPC: B64C35/00
Filed: 1928-12-05
Abstract: 302,232. Basenach, N. Dec. 12, 1927, [Convention date]. Aeroplanes; cars; floats, arrangement and disposition of.-The of a flying boat is made wholly or in part as an inflatable hollow body strengthened by internal air pressure. The hull may be formed of wood or metal in known manner, or may be made of flexible material such as gastight cotton linen or silk cloth, or rubberized canvas. In the case of a flexible hull, an envelope may be provided formed of a network of steel cable and metal strip. In the example shown in Fig. 2, only the forecastle a is formed as a pneumatic body. Side floats b are provided on the water-line. The hull may be made in two separate longitudinal portions, or may be subdivided by longitudinal or transverse partitions as for example in Fig. 4.
Patent GB-1064437-A (GB)
Title: Improvements in or relating to air cushion vehicles
Inventor: JONES RICHARD STANTON
IPC: B60V1/00
Filed: 1964-09-02
Abstract: 1,064,437. Air cushion vehicles. WESTLAND AIRCRAFT Ltd. Aug. 17, 1965 [Sept. 2, 1964], No. 35857/64. Heading B7K. An air cushion vehicle comprises an air impermeable panel 1 attached to and supported by a tubular inflatable structure 2, 7, 8 with a skirt 3 depending therefrom to form a plenum chamber. A rigid load-carrying platform 5 containing crew and pay-load compartments, power plant &c. is attached to the inflatable structure and panel 1. The skirt 3 may comprise a single panel or it may be double to form a duct for the supply of air to curtainforming nozzles at the base of the skirt. The structure may be inflated by a plant other than that which supplies air to the cushion. Panel 1, skirt 3 and structure 2, 7 and 8 may be rigid.
Patent GB-325899-A (GB)
Title: Improvements in apparatus suitable for pulping coffee cherries
IPC: A23N5/00
Filed: 1928-12-06
Abstract: 325,899. Carpmael, A., (Douglas, H., and Bentall, L. G.). Dec. 6, 1928. Coffee pulping.-Coffee cherries are fed from a hopper 9 by a square bar 11 having projections 12 into the nip between two rollers 1, 2, arranged at different levels and driven in the same direction. The upper roller 1 is preferably grooved, either parallel to or at an angle to its axis, and is approximately half the diameter of the lower roller, the periphery of which is plain. The pulp is carried between the rollers while the beans adhere to and are carried away from the nip by the plain rollers, from which they are removed by a scraper.
Patent GB-1141037-A (GB)
Title: Refractory units
Inventor: GILPIN WILLIAM CECIL
IPC: F27D1/08
Filed: 1965-08-23
Abstract: 1,141,037. Refractory bricks. STEETLEY REFRACTORY BRICK CO. Ltd. 23 Aug., 1966 [23 Aug., 1965], No. 36123/65. Heading F4B. A refractory unit for a furnace lining comprises two blocks which may be of the same or different material, separately moulded, for example one may be of magnesite-chrome and the other of chrome-magnesite, assembled within a casing 6, 7 of two overlapping channel sections welded together and having a metal plate 5 and two channel members 3, 4 forming internal reinforcement not attached to the casing. Means for suspending the unit from a furnace hanger comprises tabs 9, 10 having U-shaped projections 15, 16 located in recesses 13, 14 which permit each tab to be drawn out for use. A projection 19, 20 engages with the reinforcement when the tab is drawn out. In another embodiment (Figs. 4-6) the tabs 9, 10 are replaced by inverted U-shaped members (34, 35) fixed to channel reinforcements (32, 33) and the top of each block is recessed to accommodate the U-shaped member. In either embodiment the reinforcement may be of L, T, or U-shape.
Patent GB-1383110-A (GB)
Title: Process for granulating urea
IPC: C05B7/00
Filed: 1972-08-03
Abstract: 1383110 Urea FISONS Ltd 26 July 1973 [3 Aug 1972] 36209/72 Heading C2C Urea is produced in granular form by (1) tumbling or agitating together urea particles in a granulation device in the presence of a liquid phase, whereby the particles are caused to agglomerate, and (2) classifying the agglomerated particles and recycling those particles having a size below that desired to the granulation device without subjecting them to a deliberate cooling step. The urea may be employed in admixture with other fertilizer materials, e.g. ammonium phosphate, potassium chloride, potassium sulphate, potassium nitrate, phosphate rock and/or limestone.
Patent GB-1364527-A (GB)
Title: Velocity stack processing of seismic data
IPC: G01V1/28
Filed: 1971-08-02
Abstract: 1364527 Seismic signal processing CONTINENTAL OIL CO 2 Aug 1971 [2 Oct 1970] 36221/71 Heading H4D Seismic data comprising trace groups relating to respective common depth points are analysed to determine the velocities associated with indicated events on the traces, and those event indications having the same travel time and same velocity in several of the trace groups are stacked. In the Fig. 9 example a common depth point (CDP) trace group (after conventional processing which may include correlation, normalization, trace equalization, spectrum whitening, static corrections and approximate normal moveout corrections) has event velocity analysed by applying a differential time shift #t between the traces in scanner 146a and recording at 154 a first composite of these shifted traces, then repeating the shifting at 146b ... 146n for other time shifts and recording further composites at 154. Individual composites are associated with different respective velocities. The shifts are based on a predetermined velocity function. Indications of the centres of the primary event wavelets are then selected at 160, 162 on an amplitude basis and the composites are recorded on individual channels of recorder 163. On playback of the channels the composites are subjected to further differential time shifts in scanners 166a ... 166n, whereby the output on lead 168a of scanner 166a represents events associated with a particular time-velocity response and similarly the other scanner outputs on leads 168b ... 168n are associated with other respective time-velocity responses. These outputs are subjected to velocity constraints at 170 to reject unwanted signals, and are then recorded on separate channels of recorders 176a ... 176n. The above procedure is repeated for other CDP trace groups. Event indications associated with the same velocity and occurring at essentially the same travel time in several CDP trace groups are stacked at 184. Further amplitude, timing and velocity constraints may be applied to the stacked data at 186, 196 and the resulting data output may be used for recording at 200, plotting as time/velocity graphs at 208, further (digital) processing at 202, 204, or conversion at 216 to a velocity function which is used to establish the time shifts in scanners 146a ... 146n and 166a ... 166n. A final data display may be produced in which events are plotted as impulse markings along time scales and an overlay graph of event velocities versus travel time is provided. A flow diagram for digital implementation of the above processing, including elaborations of the process, is given (Figs. 10A to 10C, not shown).
Patent GB-794451-A (GB)
Title: Push chair cover
IPC: B62B9/14
Filed: 1955-12-17
Abstract: 794,451. Capes. ASKAROFF, I. Oct. 16, 1956 [Dec. 17, 1955], No. 36261/55. Class 141 A push chair cover comprises an apron 2 of waterproof material, downwardly extending side and end members 4, 6; 8, 10 respectively, and a hood 14 secured at one end of a slit in the apron 2, the other end of the slit being closable by a sliding clasp fastener 16. Armholes and sleeves 26 may also be provided. The front flap 10 is secured to the side members 6 to form a pocket 11, the rear flap 8 may be secured similarly, or it may be free, as in Fig. 2. The cover is detachably connected to the push chair by tapes 20, or it may have eyelet holes to be engaged over turn buttons on the chair. The hem of the side and end members is preferably elasticated.
Patent GB-1317332-A (GB)
Title: Weighing apparatus and systems
IPC: G01G7/04
Filed: 1970-07-27
Abstract: 1317332 Measuring weight electrically, weighing apparatus WM AINSWORTH Inc 27 July 1970 [15 Aug 1969] 36266/70 Headings G1N and G1W [Also in Division H3] In a force balance type of weighing machine, the deflection of the beam is sensed by a differential capacitor which is connected in a bridge circuit whose unbalance is rectified to produce the restoring current. As shown (Fig. 1), the weigh pan 12 is supported on two knife-edge pivots 15, 17 located between vertical legs 13, 22 spaced by a rod 24, whereby vertical displacement of pan 12 by a load L produces a corresponding horizontal displacement of the legs 13, 22. The latter carries the movable electrode 33 of a differential capacitor, with fixed electrode 34 attached to a support 27, electrically connected with fixed capacitors 31 in a bridge circuit energized by oscillator 80. The unbalance current after rectification and amplification is fed to a coil 35 mounted on leg 22 to produce a balancing restoring force in association with permanent magnet 36. The current in coil 35 is therefore a measure of the load L. The movable parts may be raised from the knife-edge pivots when the machine is not in use, by a handle 71 (Fig. 2) which rotate two cams 72 which engage pins 73 to shift arms 74 upwards against spring- loaded posts 77 which lift the legs 13, 22 to disengage the knife-edge pivots.
Patent GB-424852-A (GB)
Title: Machine for shaping mine props or the like in a single operation
Inventor: DOVERMANS PASCHAL
IPC: B23Q11/00
Filed: 1933-12-27
Abstract: 424,852. Shaping mine-props; cutter heads. DOVERMANS, P., Winterslag, Limbourg, Belgium. Dec. 27, 1933, No. 36340. Convention date, Dec. 23, 1932. [Class 145 (i)] [See also Group XXVIII] In a machine for shaping the ends of mine props &c., the rotary cutter comprises a cylindrical portion 6 provided with blades 6a which cut the saddle 9, and cone frustra 5 provided with blades 5<a> which make lateral cuts 7. The cutter is enclosed in a casing 10 and the air current set up by the blades 5a, 6a expels the cuttings through a discharge duct 11 in the frame 1. The prop 8 is carried by a V-shaped saddle 12 adjusted by a screw 13 ; the projection of the prop into the machine is limited by a stirrup member 15 adjusted by screw 16.
Patent GB-1451558-A (GB)
Title: Seal ring
IPC: F16J15/32
Filed: 1974-08-20
Abstract: 1451558 Seals AMOT CONTROLS CORP 20 Aug 1974 [27 Aug 1973] 36564/74 Headings F2B and F2T An elastomeric ring seals terminally against wall 19 and the base 13 of a groove, in which it has axial play. The groove may be an outwardly-facing piston groove or an inwardlyfacing groove in the housing of a spool valve on piston rod stuffing-box. The groove is preferably tapered.
Patent GB-1057245-A (GB)
Title: Manufacture of yarns, fabrics and like textile materials
Inventor: SMITH JOHN LIGHTFOOT SPENCER
IPC: D06M11/38
Filed: 1962-09-27
Abstract: A shrinking agent, e.g. caustic liquor particularly sodium, potassium or lithium hydroxide, is applied to cellulosic, e.g. flax, hemp, ramie, jute, cotton, leaf, viscose rayon, fibres or filaments in the form of sliver or tow so as to cause differential shrinkage throughout the fibre &c. mass: after washing and drying, and at a later, e.g. yarn or fabric, stage, the fibres &c. are uniformly treated with the same or another shrinking agent to cause corresponding differential shrinkage of fibres &c.  In the first application of shrinking agent, the uptake thereof by a single sliver &c. is varied cyclically, shrinking agent of different strengths is simultaneously applied to two or more separate slivers &c., which are then combined for further processing, or the concentration of shrinking agent applied to a single sliver &c. is varied along the length thereof.
Patent GB-333839-A (GB)
Title: An improved process and apparatus for tempering glass
IPC: C03B27/052
Filed: 1929-11-30
Abstract: 333,839. Soc. Anon. des Manufactures des Glaces et Produits Chimiques de St.-Gobain, Chauny, et Cirey. Aug. 7, 1929, [Convention date]. Tempering.-Relates to a process for tempering sheet glass by blasts of air directed on to the sheet while the glass is hot. According to the invention, the air is directed in jets on to both faces of the sheet in a direction which is not normal to these faces, and is drawn off after its contact with the glass, by means of suction devices. The process may be carried out by the apparatus shown in plan in Fig. 2 in which jets of air from nozzles B are directed along both surfaces of the sheet A from the edges towards the centre. Suction nozzles E are arranged near the surfaces of the sheet to draw away the air after it has made contact with the glass.
Patent GB-1209511-A (GB)
Title: Mixing nozzle and dispersion method
Inventor: KAUTZ GLENN E
IPC: B29B7/74
Filed: 1968-08-02
Abstract: 1,209,511. Mixing nozzle; spray producers. H. H. ROBERTSON CO. 2 Aug., 1968, No. 36961/68. Headings BIC and B2F. A mixing nozzle 10 suitable for mixing polyurethane foam-forming reactants has a bore 11 into which the reactants are introduced at predetermined rates through bores 13, 14, and bores 15, 16 communicating with bore 11 via ducts 21-26 through which an inert gas, e.g. air may be blown to agitate the reactants. Ducts 27, 28 connecting bores 15, 16 with bores 13, 14 may be provided to promote the flow of reactants into bore 11. A delivery tube, which may be Y-shaped (Fig. 8, not shown), may be inserted in well 12. The nozzle may be connected to tubing so that it can be used at locations remote from the sources of supply of reactants and carrier gas, e.g. in structural cavities.
Patent GB-970973-A (GB)
Title: Improvements in the polishing of corneal lenses
IPC: B24B13/005
Filed: 1963-09-19
Abstract: 970,973. Grinding. LENTILLES OPHTALMIQUES RATIONNELLES S.A. Sept. 19, 1963 [Oct. 6, 1962], No. 36969/63. Heading B3D. A hand tool for use, in association with a conventional rotary polisher 50, in polishing a corneal lens 20 comprises a handle 1 at one end of which is mounted a device 17 for gripping a corneal lens, the device being associated with driving means 45 and being rotatably mounted in the handle. The gripping device consists of a rubber suction cup 17 mounted on the end of a tubular shaft 5 rotatably supported by bearing surfaces 3, 4 in the handle 1. The outer end of the shaft is connected by a screw 40 to a plug 41 on one end of a flexible shaft 42 connected at its other end by reduction gearing 43 to an electric motor 45. A rod 23 is disposed within the shaft 5 and is provided at one end with a piston 24 and at the other end with a member 29 connected by a screw 36 passing through a slot 37 in the shaft to a sleeve 34 having a flange 39. A spring 30 acts to urge the piston away from the suction cup. When a lens is to be polished, the piston is moved against the spring by pushing on the flange 39 and the suction cup placed against the convex side of the lens. The flange is then released so that the spring lifts the piston to create a suction in the cup and hold the lens while it is rotated by the motor 45 and placed in contact with the rotary polisher 50 which has a hemispherical head 51 of expanded polyurethane foam covered with a polishing cloth.
Patent GB-1016104-A (GB)
Title: Improvements in or relating to shoe inseam sewing machines
IPC: D05B15/00
Filed: 1962-10-01
Abstract: 1,016,104. Sewing. BRITISH UNITED SHOE MACHINERY CO. Ltd. Oct. 1, 1962 [Oct. 4, 1961], No. 37016/62. Heading D1G. A shoe inseam sewing machine having a curved hooked needle mounted for swinging movement, is provided with shoe upper tensioning means comprising a spur arranged to engage and tension the upper prior to the penetration thereof by the' needle. A rib 16 or a shoe insole 14 and a shoe upper 12, mounted on a last 10, are sewn to a welt 34 by means of a curved hooked needle 20 cooperating with a curved awl 22, a needle threader 24, a loop spreader 26, a channel guide 28 and a thread take-up 44. Needle 20 is mounted on a carrier 36 pivoted on a shaft 38. A needle guide 30, pivoted on a hub of carrier 36, has mounted thereon a curved spur 48. A bore formed in guide 30 houses a ball 58 which can enter either a recess in carrier 36 to couple guide 30 thereto, or a recess in a fixed flange 60 to couple guide 30 to the latter. During the initial part of the needle stroke, guide 30 is coupled to carrier 36, whereby spur 48 engages the shoe upper to stretch or tension the upper before the latter is engaged by the needle. Guide 30 is arrested when a protuberance thereon engages a lug 62 on flange 60, when ball 58 is transferred into engagement with flange 60 and the needle is freed to continue its stroke. During the return stroke of the needle an abutment on carrier 36 engages the protuberance on guide 30, when ball 58 is shifted into engagement with carrier 36 to couple the latter and guide 30 together.
Patent GB-432943-A (GB)
Title: Method and apparatus for vulcanizing belts, plates and the like of vulcanizable material
IPC: B29C35/02
Filed: 1934-12-27
Abstract: 432,943. Vulcanizing long lengths electrically. AKTIESELSKAPET DEN NORSKE REMFABRIK, 2, Chr. Krohgsgate, Oslo, Norway. Dec. 27, 1934, No. 37099. Convention date, Dec. 28, 1933. [Class 70] Rubber belts and the like are vulcanized by wrapping them on a drum with an interposed preheated steel ribbon under controlled tension, and maintaining the temperature of the ribbon by the passage of an electric current. A steel ribbon 16 with one end attached to a drum 2 is wound with an insulating strip 15 on a drum 3, and is preheated by passing a current through the shaft 7 of the drum 3, the drum 3, ribbon 16, drum 2, and shaft 8. The ribbon 16 and rubber belt 17 are then wound on the drum 2, tension being applied by braking the drum 3. The tension is measured by an indicator operated by a hydraulic ram 5 mounted between the drums. The temperature of the ribbon is maintained during vulcanization by the current. On completion, the belt 18 is wound off on to a roll 13.
Patent GB-1017861-A (GB)
Title: Improvements relating to the treatment of polymeric materials
IPC: D06M14/08
Filed: 1962-10-02
Abstract: Graft polymers are made by treating a nonreducing polymeric material with a polymerizable monomer having a <FORM:1017861/C3/1> group in the presence of a graft polymerization catalyst having the formula Ma(A)m.HaA wherein M is a rare earth or actinium series metal, A is an acid anion, m is the valence of the metal and is 3 or 4, and a is the valence of the anion.  Polymers specified are polyamides, particularly in fibrous form, polyethylene, polypropylene, polyesters, cellulose triactate, alginates and proteins.  Fibrous materials treated by this process exhibit modified properties, e.g. increased wettability and dyeability. The examples describe treating fibres of nylon-66, polypropylene, an acrylonitrile/vinyl pyridine copolymer and polyethylene terephthalate with aqueous solutions containing acrylic or methacrylic acid and hydroxyethyl methacrylate and a ceric sulphate-sulphuric acid polymerization catalyst.