baber/WOPTO huggingface dataset:
Patent GB-356040-A (GB)
Title: Improvements in metal milling machines
IPC: B23C1/025
Filed: 1930-11-14
Abstract: 356,040. Milling-machines. KELLENBERGER, L., (trading as KELLENBERGER & CO., L.), 29, Heiligkreuzstrasse, St. Gall, Switzerland. Nov. 14, 1930, No. 34287. Convention date, Nov. 21, 1929. [Class 83 (iii).] A milling machine having a single standard b carrying the work-table c and fitted with an overhanging arm h is provided with bracing means consisting of one or two arms i, i<1> which are slidable in shoes k pivoted to the end of the arm h so that when the braces are not required they may be swung so that they rest on rollers p in a position parallel to and adjacent the arm h. The sliding movement in the shoes is produced by rotating pinions m engaging racks on the underside of the braces. In the operative position the braces are secured by means of clamping plates q, ql and bolts r, r<1>, the plates being slotted so that either or both the braces may be used as required. In Figs. 1 and 2 the milling-spindle is supported in bearings g, g<1> suspended from the overhanging arm. In a modification, three clamping plates are employed, the braces being secured to the machine base a as well as to the table and arm. In a further modification, Fig. 6, the table support c<1> is fixed and the milling head d is adjustable on the standard b. A single brace i of substantially H form is employed and is secured in operative position by means of clamping plates q, q<1>. The spindle carriers g g<1> may be withdrawn between the upper limbs of the H, without disturbing the brace. In a further modification, Fig. 7, the braces are arranged to cross each other, the lower ends being slotted and secured by bolts t.
Patent GB-343074-A (GB)
Abstract: 343,074. Date and time printing apparatus. A. E. G.- FAHRKARTENDRUCKER GES., Hennigsdorf, Osthavelland, Germany. Nov. 11, 1929, No. 34392. Convention date, Nov. 10, 1928. [Class 100 (ii).] In a ticket-printing machine comprising a number of similar printing units arranged in the upper part of housing 1 and in which a paper strip passes from a supply roll over rollers 8, 9 and through guides 11, 12, 13 to a delivery slot 14, type-wheels 20, 21 are provided for printing the time of day and type-wheels 22, 23, 24 for printing the date. The wheels 20.. 24 are driven from an electromagnet 34 excited from the station clock. The type-wheels 20, 21 represent the hours and half hours. The wheel 20 is moved two steps while the wheel 21 is moved one step. The notches between the teeth of the wheel 85 are alternately of different depths, Fig. 8, and the wheels 85, 86 are driven by pawls 87, 88 rigidly connected and of such length that while the wheel 85 is moved one step at each half hour, the wheel 86 is only driven at each hour when the pawl drops into the deep notch. The pawls are carried on an arm 92 connected through a linkage 93, 94, 95 to the armature 96 of the electromagnet 34 excited each half hour from the clock. The typewheels 20, 21 are in one with the wheels 85, 86 on a spindle 120. This spindle carries a disc 112 into a recess 113 in which a roller 114 drops once a revolution. The roller 114 is on an arm 115 carrying pawls 109 which operate the date type wheels 22, 23, 24. These are on a spindle 105 and connected respectively to toothed wheels 106, 107, 108. These are actuated by three pawls 109 rigidly connected together and of different lengths. The longest pawl engages the wheel 106 which has one deep tooth and when this is engaged by the pawl the second pawl engages the wheel 107 and moves this wheel through one step. Similarly at every revolution of the wheel 107 which also has a deep tooth, the wheel 108 is moved on by the third pawl. An inking ribbon 28 is led between the paper strip and the type-wheels 20-24 upon rollers 118 and a drum 119.
Patent GB-895881-A (GB)
Title: Improvements in limited-torque couplings
Inventor: CLYDE ALEXANDER KENNETH
IPC: F16D43/206
Filed: 1959-10-09
Abstract: 895,881. Overload-release clutches. TILTMAN LANGLEY Ltd. Oct. 7, 1960 [Oct. 9, 1959], No. 34332/59. Class 80 (2). A torque coupling, adapted to disengage permanently when the torque reaches a predetermined figure, comprises balls 34 housed in adjustable depth recesses in control part 16 and pressed axially into V-grooves 35 in control part 24 by plungers 40, acting through the annular plate 42, and urged to the left by springs 48 engaging against an adjustable abutment, the plungers and springs being mounted in a collar 44 located axially by circlip 46 and secured to the centre sleeve 2 by a key (not shown). The control part 16 and the clutch part 10 are axially free but coupled together for rotary drive by pin 18 secured in the flange of clutch part 10. The connector 22 integral with the control part 24 is thrust, via the ring 28, against flange 30 on centre sleeve 2 which is axially fixed. A ring 4, formed with clutch teeth 8, is secured to the sleeve 2 and co-operates with clutch teeth 12 formed on part 10. The coupling is arranged so that as the torque increases the balls 34 ride up the sides of the V-grooves 35 and on reaching the desired maximum the balls ride out of the V-grooves on to the surface of plate 24 moving the control part 16, via plate 42 against the thrust of the plungers 40, lowering the torque such that the clutch part 10 is moved to the right by the springs 20 thus disengaging the clutch teeth. In another embodiment a weight 54, housed in the collar 44 can move radially outwards against spring 56 and is arranged to provide increased torque at low speeds by means of spring 58 urging shoulder 68 of weight 54 against plate 42. Thus greater pressure must be overcome before the control plate 16 and balls 34 can disengage. At high R.P.M. this weight moves outwards to a disengaged position. The clutch is re-engaged by rotating control part 16.
Patent GB-367025-A (GB)
Title: Improvements in or relating to machines for sewing and the like
IPC: D05B37/04
Filed: 1930-11-14
Abstract: 367,025. Sewing-machines. HERSHMAN, M., 61, Downs Road, Clapton, London. Nov. 14, 1930, No. 34368. [Class 112.] Cutting. - A cutting or trimming blade 10 has a shank 13 to enable it to be fitted to the needle-bar 15 of a sewing machine in place of the usual needle, for trimming or cutting cloth &c.
Patent GB-917093-A (GB)
Title: Process for producing fluoroolefins
IPC: C07C17/269
Filed: 1961-09-26
Abstract: Tetrafluoroethylene and hexafluoropropylene are produced by pyrolysing crude or pure chlorodifluoromethane at a temperature of 700 to 900 DEG C. and a pressure of 0.1 to 2 atmospheres for a time of 0.1 to 10 seconds to obtain a conversion (as defined in the Specification) of the chlorodifluoromethane to pyrolysis products of between 86% and 94%.  The reaction is preferably carried out at a chlorodifluoromethane pressure of 0.5 to 1.2 atmospheres, the partial pressure being varied for example by dilution of the chlorodifluoromethane with nitrogen, helium or carbon dioxide. The process is preferably carried out in a tubular reactor through which the starting materials are caused to flow, the temperature in the reactor preferably increasing in the direction of flow of the chlorodifluoromethane.  Octafluorocyclobutane may also be formed during the pyrolysis and, together with unreacted chlorodifluoromethane, may be separated from the reaction products and recycled, the pyrolysis of octafluorocyclobutane producing tetrafluoroethylene and hexafluoropropylene.  The pyrolysis products may be separated by fractional distillation or by extractive distillation in the presence of hydrocarbons or chlorinated hydrocarbons.  Numerous examples and comparative examples are given. Specification 481,405 and U.S.A. Specification 2,758,138 are referred to.
Patent GB-341610-A (GB)
Title: Improvements in or relating to the regulation of voltage on long lines
IPC: H02J3/16
Filed: 1929-11-11
Abstract: 341,610. Transmission systems. SIEMENS - SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. Nov. 11, 1929, No. 34434. Convention date, Nov. 12, 1928. [Class 38 (iv).] Regulation, automatic; feeder and transmission line arrangements.-A switching arrangement for a number of inductances to be automatically inserted in or withdrawn from parallel connection with a transmission line according to voltage conditions comprises two series of coils 41, 42 for switching in and switching out respectively, the coils of each series being alternately connected at one end to control conductors 10, 11 the " in coil and the " out " coil of any one switch being connected to a different conductor. The other end of each coil is connected through an interlock on the preceding switch to an " on " or an " off " conductor 14, 15. Two time delay relays 12, 13 are connected each with its contacts in series with one of the control conductors and with the coil of the other relay, to interpose an adjustable time delay between the switching in or out of successive inductances, which switching proceeds until the voltage relay 16 is restored to its central position by restoration of line volts. A relay 17 responsive to excessive voltage is adapted (a) to connect the control source direct to the control conductors and eliminate the time delay and (b) to apply control current direct to all the closing coils. To avoid the delay interposed by electromagnetic switches " tilting relays " may be used. Switches which are held closed by continuing energization may be employed instead of the maintaining-circuit arrangement illustrated.
Patent GB-1525780-A (GB)
Title: Method for positioning and supporting a machine
IPC: B23Q1/00
Filed: 1976-08-18
Abstract: 1525780 Fluid pressure jacks M R STITH 18 Aug 1976 [26 Aug 1975] 34504/76 Heading B8J [Also in Divisions F1 and F2] In a method of positioning (or re-positioning) and supporting an object 1, such as a large industrial air compressor weighing 50 to 100 tons, on a foundation F, which may be a large mass of reinforced concrete, a plurality of hydraulic jack units 13 are placed between the object 1 and the foundation F and a liquid under pressure is introduced into each jacking unit 13 to move the object 1 to a selected position, the liquid being hardenable to a solid substantially without expanding or contracting. The liquid is maintained under pressure so as to support the object 1 in its selected position and the hardening effected to fix the jack units 13 in their respective positions with the object 1 supported in its selected position. Each jack unit 13 comprises a cylinder 23 receiving a piston 17 with a protrusion 33 on its end face 31. In the retracted position of the jack an annular space 35 surrounds the protrusion 33. The cylinder 23 has an inlet port 39 and an outlet port 41 for exit of air from chamber 32 as the hardenable liquid enters the chamber 32. The outlet port 41 has an internal thread for receiving a plug 43 to close the outlet port 41 once air has been expelled from the chamber 32. A one-way valve fitting 44 is fitted to the inlet port 39 so as to allow the liquid into the chamber 32 and to prevent exit of the liquid therefrom.
Patent GB-915719-A (GB)
Title: Improvements relating to sewing machines
IPC: D05B47/00
Filed: 1959-10-12
Abstract: 915,719. Sewing - machines. MORAT G.m.b.H., FRANZ. Oct. 12, 1959 [Oct. 11, 1958], No. 34558/59. Class 112. A sewing-machine has a thread tensioning device comprising a roller 5 with a smooth hard surface upon which the thread bears, or is wrapped around, the direction of rotation of the roller being such that the surface of the roller moves in the opposite direction to that of the thread. The thread passes through the eye 6 of a reciprocating take-up. When the take-up displaces the thread to the dotted position to tighten the needle thread loop the tension of the thread is increased as the angle of lap of the thread on the roller increases. The roller 5 may be the external cylindrical rotor of an electric motor such as is shown in Specification 872,158, [Group VIII].
Patent GB-292426-A (GB)
Title: Improvements in or relating to skeleton structures such as aircraft fuselages
IPC: B64C1/00
Filed: 1927-03-31
Abstract: 292,426. Sigrist, F., Camm, S., and Hawker Engineering Co., Ltd., H. G. March 31, 1927. Divided on 286,482. Framcwork.-In fuselages and like tubular framework comprising one or more bracing members 2 the ends of which abut against an intermediate portion of a longeron 1, the joint is made by means of a clamping plate 3 or a pair of clamping plates bolted or riveted to the bracing members and bolted to the longeron. The head of the bolt 6 through the longeron is formed as a ball or socket to cooperate with the end of a transverse bracing member 11. The clamping plates may be flat instead of curved as shown at 3<a>. Instead of a pair of plates, a U-shaped plate astride the longeron may be used. The bracing members may be expanded at their ends or flattened to an oval section to make their effective diameter equal to that of the longeron. Where this is not done, the clamping plates are shaped as shown in Fig. 8 and a distance piece 14 is provided. The ends of the bracing members may be cut to conform to the shape of the longeron or to a V-shape. The wiring plates are held by the head of the bolt 6.
Patent GB-349120-A (GB)
Abstract: 349,120. Portable signal lamps. TRIGGS, W. W., 57, Lincoln's Inn Fields, London. -(National Carbon Co. ; 30, East 42nd Street, New York, U.S.A.) Feb. 15, 1930, No. 5160. [Class 75 (iv).] A self-contained portable flashing electric lamp, particularly adapted for use as a road traffic danger signal at points where ordinary lighting current is not available, is fitted with an electromagnetic interrupter driven by an oscillating motor and having a switch member for connecting the lamp periodically into circuit, the circuit of the mechanism being completed while it is moving in one direction and of the lamp while the mechanism is moving in the other direction so that when both are fed from the same battery a comparatively even load is produced and no excessive drain on the battery takes place. A further ratchetoperated switch driven through gearing is arranged in the lamp circuit to cut the lamp in at night and prevent its circuit being completed by the continuously acting electromagnetic interrupter during the day. The interrupting mechanism is secured in a framework below a plate 48 which is attached by bayonet-slot connections to the top wall 49 of a casing 11 the wall 49 being provided with a recess 50 holding the lens E and an aperture 51 through which the holder for the lamp L projects. The lower casing 10 is detachably secured below the casing 11 and carries the batteries B. A handle H, a cap 61, and the lens E are rigidly secured to the wall 49 by tie rods 64 and nuts 65.
Patent GB-917714-A (GB)
Title: Continuous enthalpy meter
Inventor: WILD NORMAN HAROLD
IPC: G01N25/60
Filed: 1960-10-12
Abstract: 917,714. Determining the liquid content of vapour streams. ESSO RESEARCH & ENGINEERING CO. Sept. 22, 1961 [Oct.12, 1960], No. 34939/60. Class 97 (3). The enthalpy of a vapour stream at temperature T H  taken from a header 1 through line 2 is determined by cooling the vapour stream to a temperature T 1  in a heat exchanger 3 so that the vapour stream is condensed completely to the liquid phase, further cooling the stream in a second heat exchanger 8 to a temperature T c , recycling the cold liquid stream through line 4 to heat exchanger 3 so that it is heated substantially to temperature T 1  and determining T 1  - T c  such as by thermocouples 11, 12 and galvanometer 13. The proportion of liquid phase present in the vapour stream, e.g. the dryness of steam, is then determined by reference to a calibration chart. In a modification the recycled cold liquid stream is circulated several times through the heat exchangers to enable the dryness of steam to be determined over the full range of 0-100%.
Patent GB-821944-A (GB)
Title: A new or improved control valve for power assisted steering mechanisms
Inventor: STABLE CHARLES EMERY FLEMING
IPC: B62D5/087
Filed: 1955-12-06
Abstract: 821,944. Vehicle power steering. KENT Ltd., G. Dec. 6, 1956 [Dec. 6, 1955], No. 35035/55. Class 79(5) [Also in Group XXIX] The two relatively movable parts 16, 17 of a valve for controlling the supply cf pressure fluid to power assisted steering ,mechanism for a road vehicle are biased towards a predetermined relative position by a pressure derived from that of the controlled fluid, as shown by the supply pressure acting on a ball 43 carried by the part 17 and engaging a V-shaped groove 45 in the part 16. The embodiment shown is applicable to a rack and pinion gear of which the rack is connected by a tubular element 5 with the part 16. The part 17 constitutes the servo-piston and is connected by a tube 9 with the steerable road wheels. Pressure fluid is supplied through the element 5 to an opening 30 between a pair of lands 32, 33 of the part 16 and passes through a passage 44 to the ball 43 which is also loaded by a light spring. When the parts are in the centralized or neutral position to which they are biased passages 40 leading to opposite ends of the servo-piston 17 are in communication with the pressure fluid supply and with exhaust through a passage 41 and the tube 9 whereby the servo-piston is held in balance, but relative movement of the part 16 upsets this balance so that the servopiston is moved a corresponding amount. A passage 45 conducts fluid leaking past the ball 43 to exhaust. To vary the value of the centralizing force the angle of the sloping faces of the groove 45, the fluid pressure acting on the ball, or the number of balls employed may be altered. Specification 817,830 is referred to.
Patent GB-642178-A (GB)
Title: A thermal electric switch
IPC: H01H71/16
Filed: 1947-12-31
Abstract: 642,178. Electrically released switches. NECHVATAL, V. Dec. 31, 1947, No. 35063. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 31, 1947] [Class 38(v)] A thermally-released circuit-breaker comprises a bimetal strip 3 bent at one end into a circle 1 into which is placed a heating element 6 carrying the current in the protected circuit, the other end of the strip being in the form of a hook 5 which normally engages a spring-biassed lever 4. The latter is thus held in engagement with a contact 10 which shunts part of the current through strip 3. On overload, the lever 4 is released and the circuit opens at contacts 4, 10, an alarm circuit and earthing circuit being made when lever 4 engages a contact 9 on an earthing strip 7. The sensitivity of the breaker is varied by adjusting the relative diameters of the circle 1 and heater 6. The breaker is reset by depressing a button 8, which also acts as an indicator.
Patent GB-1105430-A (GB)
Title: Improvements in or relating to manufacture of electrical capacitors
IPC: H01G9/00
Filed: 1966-08-05
Abstract: 1,105,430. Electrolytic capacitors. SIEMENS A.G. 5 Aug., 1966 [6 Aug., 1965; 4 July, 1966], No. 35088/66. Heading H1M. In the manufacture of a solid electrolytic capacitor in which the electrolyte comprises a plurality of layers of manganese dioxide formed by pyrolysis of manganese nitrate, at least one layer is of manganese dioxide of reduced electrical conductivity as compared with normal manganese dioxide. The consequent increase in loss factor and impedance is compensated for by an increase in breakdown resistance during intermediate forming, so that high voltages may be employed and capacitors with high working voltages made. The low conductivity layers may be formed by incorporating in the manganese dioxide crystal lattice nickel oxide, cobalt oxide, zinc oxide or both nickel and zinc oxide, and this is achieved by including the metal carbonate or nitrate in the manganese nitrate solution or melt prior to pyrolysis. Alternatively, pyrolysis of the manganese nitrate may be carried out in the presence of a reducing agent, e.g. manganese formate, formic acid, urea, hydrazinium nitrate, acetic acid, ammonium acetate benzoic acid, certain sugars or, best, manganese acetate. Particularly advantageous results are obtained using a stock solution of manganese nitrate and manganese acetate which has been allowed to age. Preferably the first layer is formed from a solution containing less than 60% manganese nitrate, subsequent layers being formed from concentrated solutions or melts. The first layer may be of normal conductivity, and such a layer may be repeated after every two or three layers of lower conductivity, intermediate reforming being carried out after each application. Preferably, however, if a high voltage intermediate formation is required, the first layer is of low conductivity. For example this layer may be formed by pyrolysis following impregnation with a solution containing less than 20% nitrate made up of manganese and zinc nitrates in proportions of about 2 to 1. Subsequent layers are formed from manganese nitrate alone, since under the pyrolysis conditions sufficient zinc diffuses into the outer layers to give a gradient of increasing conductivity from the inner to the outer layers. It is preferred to carry out an annealing treatment in air after the first electrolyte layer has been deposited and this may be repeated between later depositions. Reforming is carried out after annealing. Advantageously, the anodized electrode, prior to deposition of the first layer, is annealed in the absence of oxygen at a temperature substantially higher than that of subsequent pyrolysis. During pyrolysis, the electrode may be rotated about its axis. The capacitor is completed by application of graphite and metal layers in the conventional way.
Patent GB-731148-A (GB)
Title: Apparatus for testing short circuits in coils
IPC: G01R31/72
Filed: 1953-12-16
Abstract: 731,148. Testing armatures and other windings. DUTSCHKE, K. Dec. 16, 1953 [March 2, 1953; Sept. 28, 1953], No. 35096/53. Class 37. A hand-manipulated device for indicating short-circuited armature &c. turns and comprising in known manner exciting and testing electromagnets 2, 3, Fig. 1, is provided with a glow lamp, e.g. as at 5, which lights up when the faulty armature &c. induces an e.m.f. into testing magnet 3. If desired, the glow lamp 5 may.be mounted directly on the testing magnet 3 as shown in Fig. 3. The Specification includes wiring diagrams, Figs. 4 to 6 (not shown), concerned with operating the apparatus from A.C. or A.C./D.C. or ignition supply.
Patent GB-1237574-A (GB)
Title: Electrical connectors
Inventor: BETLEY DAVID
IPC: H01R4/62
Filed: 1968-07-23
Abstract: 1,237,574. Making electrical connectors. BOWTHORPE - HELLERMANN Ltd. 6 June, 1969 [23 July, 1968], No. 35125/68. Headings B3A and B3R. [Also in Division H2] A method of making a copper/aluminium electrical connector for a segmentally shaped aluminium conductor comprises friction welding a solid aluminium member 12 to a copper member 10 and then forming the aluminium member into a sleeve which is shaped to receive the aluminium conductor. The copper member is in the form of a tube, which is fixed in a clamp while the aluminium member is held in a chuck and rotated. When the weld joint is completed the member 12 stops rotating by means of a slipping clutch. A bore is formed in the member 12, which may be of the same diameter as the bore of the member 10. The aluminium tube so formed is compressed between dies to form a sleeve 32 which is subsequently compressed on to the aluminium conductor. The copper member may alternatively be formed as a palm (48), a pin (56) or a "flit plug" (60), Figs. 7-12 (not shown).