baber/WOPTO huggingface dataset:
Patent GB-474178-A (GB)
Title: Improvements in or relating to speed indicators for aircraft or other moving bodies
IPC: G01P3/36
Filed: 1936-09-28
Abstract: 474,178. Indicating speed of aircraft. BRONZAVIA SOC. ANON. Sept. 28, 1936, Nos. 26320 and 26321. Convention dates, Sept. 26, 1935 and Sept. 22, 1936. [Class 106 (iii)] Apparatus for determining the ground speed of aircraft comprises an optical sighting system 1... 5, 7 having a pivoted mirror or prism 6 which is moved by a hand or motor actuated device so that the image of an observed point on the ground remains stationary on the cross-wires of lens 2. The prism 6 is moved by a pinion 10 and rack 9 which the operator actuates by turning a knob 8, which also drives through gearing and a fly-wheel a speedometer 11 giving the required speed at a given altitude. A plurality of scales may be provided to correspond to various altitudes, or changespeed gear may be used for different ranges of altitude. To compensate for deviations of the line of vision from the vertical, the uniform movement of the knob 8 and speedometer may be converted into a variable movement of the mirror by the use in the transmission to the rack 9 of a cam or other device such as a pin 13 carried by the toothed wheel 17 and adapted to engage a slot 15 of a toothed wheel 16 engaging the rack. In a modification, Fig. 5, wherein the prism is actuated through change-speed gear 27 by a motor 20 controlled by a rheostat 31, the prism is actuated by a cable 33, which is wound round a shaft 0 by the movement of a rod 21 having one end slidable in a member 24 positioned by the movement of a screw 23 driven by the motor, the height h being adjusted for different altitudes by turning a knob 30 to lift a nut 28 supporting the screw 23. The speed ratios of the change-speed gear correspond to different ranges of altitude. Provision is made for disengaging the part 24 from the screw 23 so that the rod 21 may be set at any desired initial position. In another modification, the speedometer 11 is arranged in the upper part of a casing alongside the altitude adjustment button, which operates also an altitude indicator having three scales for three ranges of altitude, and press-buttons for operating a change-speed gear of the brakedrum and planetary type.
Patent GB-1159563-A (GB)
Title: Cutting Mechanism for Severing Three Dimensional Articles formed in Sheet Material
Inventor: WINSTEAD THOMAS WILLIAMSON
IPC: B29C48/07
Filed: 1966-07-26
Abstract: 1,159,563. Cutting sheet material. T. W. WINSTEAD. 26 July, 1966 [19 Aug., 1965], No. 26469/68. Divided out of 1,159,562. Heading B5A. The subject matter of the present Specification is the same as that of Specification 1,159,562, but the claims are restricted to the cutting mechanism for removing the formed articles from the rest of the sheet.
Patent GB-677694-A (GB)
Title: Improvements in or relating to the marking of workpieces
Inventor: LEVITT FREDERICK
IPC: B25H7/04
Filed: 1950-10-31
Abstract: 677,694. Rolling. YORKSHIRE ENGINEERING SUPPLIES, Ltd. Oct. 31, 1950, No. 26482/50. Class 83 (iv). Apparatus for annularly embossing the end face of a work-piece has a die roll whose axis is at right angles to the axis of the work, and is rotated in contact with the work, the latter being rotated about its axis by friction between the die roll and work. A turntable 12 mounted on a base 11 has a central boss 12a and an arbor 15 for locating the work-piece 16. An externally screw-threaded column 17 adjustably mounted on the base 11 has a knurled nut 18 above which the column passes through a bored split boss 19a and a bracket 19 which has a bored boss 19c through which passes the shank 22a of a die roll support 22. The shank 22a is spring-loaded in the boss 19c by a spring 24. The die roller 26 carrying die elements 27 is mounted on a spindle 28 which carries a cam 29 and a boss 30 from which extends a hand lever 31. The cam 29 coacts with a roller 32 mounted at one end of a bar 34 which is spring- loaded in a bracket 35 attached to the boss 19c. In operation, the bracket 19 is positioned and the nut 18 is adjusted to give the correct clearance between the die 26 and the work 16. When the spindle 28 is rotated the cam 29 causes the die roller to move downwardly until it contacts the work, whereupon the roller 32 is moved upwardly against the spring 38 until the roller contacts the maximum diameter portion 29a of the cam 29 (Fig. 4). The spring pressure is thus transmitted to the die roller which embosses the work and at the same time rotates it on the turntable 12. Further rotation causes the die-roller to be raised and the embossed work-piece may then be removed.
Patent GB-645251-A (GB)
Title: Improvements in the pressure rollers of textile drawing devices
IPC: D01H5/74
Filed: 1945-10-10
Abstract: 645,251. Textile drawing rollers. FONDERIE DE PRECISION. Oct. 10, 1945, No. 26524. Convention date, Oct. 1, 1941. [Class 120 (ii)] [Also in Group VIII] A pressure roller of a textile drawing device comprises a hollow cylinder loaded by the introduction of one or more cylindrical bodies. The cylinder is preferably closed at both ends by plugs 2, removable for the insertion of bars or tubes, such as 4. The load may be altered by employing different sizes of bars or tubes, or, alternatively, tubes of decreasing diameter fitting into each other may be employed. In order to increase the friction between the load and the cylinder, the contact surfaces may be sand blasted, or covered with felt or the equivalent. The Specification as open to inspection under Sect. 91 comprises also loading the cylinder with steel or brass balls, lead particles, or other spherical or cylindrical masses, or mercury or other liquid. This subject-matter does not appear in the Specification as accepted.
Patent GB-659097-A (GB)
Title: Improvements in or relating to display arrangements for cathode ray tubes
Inventor: CLEAVER RICHARD FRANCIS
IPC: H01J29/62
Filed: 1948-10-12
Abstract: 659,097. Cathode-ray oscillographs. STANDARD TELEPHONES & CABLES, Ltd. Oct. 12, 1948, No. 26545. [Class 37] [Also in Group XL (a)] In order to ensure sharp focus of beams of cathode-ray tubes employing electrostatic deflection when the mean potential of the deflecting plates varies, particularly when used in the arrangements disclosed in Specification 590,260, the potentials of one or more of the beam producing electrodes are derived from a circuit including a source which generates a potential which at any instant is proportional to the mean potential of the deflecting plates. A tube 1 has its electrodes 2 ... 7 supplied in the usual way from a resistance chain 11 ... 13 connected across a H.T. supply, and the deflecting plates 8 are connected to sources such that their mean potential varies by an amount v. To maintain focus of the beam a generator 16 applies to terminal 9 a potential variation of the same form and magnitude as the variation v and of the same sign, de-coupling condensers 17 ... 21 having negligible reactance at the lowest frequency of the variation v. Depending upon the characteristics of the variation v the generator 16 may take different forms which are described in detail. In Fig. 2 (not shown), the generator is connected in parallel across a certain proportion of the resistance chain such that the potentials of the tube electrodes and the deflecting plates with respect to the most - ve tube electrode 4, vary in the same proportion; the theory underlying this arrangement being given. In this arrangement the decoupling condensers are omitted. In a further arrangement, Fig. 3 (not shown), embodying the principle of Fig. 2, the generator affects only electrodes 6, 7 and the condensers 17 ... 21 and additional resistances are employed.
Patent GB-209159-A (GB)
Title: Safety mechanism for vehicles
IPC: B60R19/02
Filed: 1922-10-02
Abstract: 209,159. Schauman, K. O. Oct. 2,1922. Wheel - guards, obstruction removers. and safety appliances.-The vehicle is fitted with a flexible impact member adapted when an obstacle is struck to close an electric circuit which causes the brakes to be applied, the engine ignition circuit to be broken and a horn to be sounded. The impact member comprises cables 1 reeved over the curved end of spring members 2, 31 which are insulated from one another. When an obstacle is struck the parts 2, 3 contact and complete a circuit 4, 5 or 6, 7, which energises a brake applying solenoid in a casing 9. The solenoid 8, Fig. 2, has a head 16 normally retained in the position shown by dogs 14, 15. When the solenoid is energized the plunger 10 moves inwards until the end 11 displaces the bushing 12 and allows the dogs to collapse. The compression spring 17 then moves the head 16 to the relative position 18, thus causing the shackles 19, 20 at the ends of the solenoids to approach one another and actuate the brake levers 22, 23. The casing 9 has a contact arm 24 which, when the mechanism is tripped, leaves a contact 25 and contacts with a stud 26. This breaks the solenoid circuit, and also the engine ignition circuit 27, and, through the contact 26 made, blows a horn 28. An automatic switch may be provided for bridging the contacts 51, 52, or 52, 53, Fig. 3, according to the direction of travel of the vehicle, so that the impact device at one end only of the vehicle is operative. Fig. 8 shows a switch for this purpose in which the disc 46 carrying the strips for bridging the contacts 51, 52, 53 on the disc 54 is rocked by a rotary shaft 52 through a friction connection 44 when the vehicle is reversed. The shaft 42 is driven from the front wheel hub 40. The solenoid trip mechanism is reset by a hand lever.
Patent GB-1379462-A (GB)
Title: Process for recovery of metal values
IPC: C22B3/00
Filed: 1972-06-07
Abstract: 1379462 Producing copper sulphites KENNICOTT COPPER CORP 7 June 1972 [10 June 1971] 26605/72 Heading C1A Cu is recovered from metal salt mixtures containing salts of Cu and metals more electropositive than Cu, e.g. ammoniacal leach solutions containing salts of Cu, Ni, Co, by dissolving 25-75% of the mixture in HCl at a pH preferably between 0 and 1À5, and reducing the remainder of the mixture, preferably by H 2 , CO, or both, to a metallic precipitate. The precipitate is added to the chloride solution and heated after adding an amount of fine sulphur such that the wt. ratio of Cu to S is 2À9 to 4À0. The Cu is precipitated as Cu 2 S and the precipitate can have a Cu : Ni ratio of 100 : 1, the filtrate containing the Ni and Co. In an example, the precipitate is treated again with the chloride solution and the precipitate resulting had a Cu : Ni : Co ratio of 100 : 0À07 : 0À05. In the above examples, the metal salt mixture is of carbonates, but other salts, e.g. chlorides, sulphates, can be used. Other salts of metals more electro-positive than Cu may be present in the mixture instead of Co and Ni salts, e.g. an Fe salt.
Patent GB-1124587-A (GB)
Title: An improved safety harness
Inventor: DAVID MARLENE ILSE
IPC: A47D13/08
Filed: 1965-06-24
Abstract: 1,124,587. Body harness for children. MOTHERCARE Ltd. 24 June, 1966 [24 June, 1965], No. 26704/65. Heading A3V. A baby harness comprises a waist band 11 and a pair of shoulder straps 25, 25a joined together at the back by a slide operated fastener 31 which is opened whilst the harness is being fitted to the baby. The waist band is in two parts 12, 13 and the shoulder straps are sewn to the rear ends of these parts, one of which has an extruded end portion 38 which can be fastened over the slide to lock it when it is in the closed position. Three bar buckles 14, 14a and four bar buckles 26, 26a allow for adjustment of the waist and shoulder straps. Chains 35 attached to five bar buckles 16, 16a allow the baby to be secured to a perambulator or to a lead.
Patent GB-1203792-A (GB)
Title: Static frequency multipliers
IPC: H02M5/27
Filed: 1967-08-31
Abstract: 1,203,792. Static converters; frequency changing. AJAX MAGNETHERMIC CORP. 31 Aug., 1967 [1 Sept., 1966], No. 26824/67. Heading H2F. Relates to control arrangements for a static converter for converting a 3-phase input to a single-phase selectively variable higher frequency output, e.g. to supply melting furnaces or variable-speed motors. In Fig. 1 anti-parallel SCRs 22, 23, 24 are connected between a three-phase source 1, 2, 3 and a common output line 19<SP>1</SP>, to a load L. The other load line is an artificial neutral provided by star-connected reactors including inductors 16, 17, 18 and capacitors 13, 14, 15. Firing pulses to the SCRs are selectively switched by transistors T1 to T6, from transformer secondaries 90-95 in a circuit energized by the converter output voltage through a transformer 60, 61. A variable ratio transformer 70 provides for adjustment of the voltage ratio between the output and control circuits. By varying the voltages applied to the transistor bases, by means of resistors 25-30 connected to supply source terminals 1, 2, 3 the SCRs are controlled and the output power is regulated. Pulse forming is a function of a saturable inductor 50 and phase shifting is effected by C52 and R51. C52 is charged by a battery 71 when a double-pole switch S is open and discharges to produce the initial firing pulse when S is closed. Fig. 5 shows the 3-phase input waveforms 1, 2, 3 and the higher frequency output waveform to the load. The neutral axis Y-Y of the H.F. output oscillates about the neutral axis Z-Z of the 3-phase input, at three times the supply frequency, but is said not to affect the peak-to-peak amplitude of the output waveform, significantly. Instead of inductor 50 there may be a saturable transformer (Fig. 2, not shown). In an alternative embodiment, Fig. 6, the timing of the pulses is established by the resonance of the load circuit. Energy for the firing pulses fed via the. pulse transformer secondaries 90-95, is derived from the load current by C.T.2 the output of which charges capacitors 126, 127 via diodes 132, 133. At zero load current a unijunction transistor 130 conducts when a delay capacitor 123, having a discharge rate set by a resistor 124, discharges to a predetermined level, and discharges C126 or C127 through the pulse transformer primary. As illustrated in Fig. 8 the pulse delay capacitor 123 is charged by a square wave voltage CVS which is the sum of a rectified voltage VS derived from the voltage (dependent on load voltage) across an inductor 115 in series with the load, and a rectified voltage CS from C.T.1. In a further embodiment, Fig. 7 (not shown), the pulse transformer is fed by amplified pulses from a flip-flop circuit controlled by a unijunction transistor.
Patent GB-259773-A (GB)
Title: Improvements in pit-tubs, wagons and the like
IPC: B61D11/02
Filed: 1925-10-27
Abstract: 259,773. Weddell, A., and Tolhurst, W. T. Oct. 27, 1925. Corves ; sides; floors.- In building up the body of a vehicle such as a pit tub or wagon the bottom a has its edges bent inwardly at a<2> to a hook formation and the ends e, f and sides c, d have their lower edges formed with hook portions g<3>, g<5> complementary to the hook portions a<2> and their vertical edges with hook portions g<2>, g' complementary to each other, the body being assembled by giving the sides and ends, in proper sequence, an horizontal sliding movement outwardly relative to the bottom so as to cause the hook portions to inter-engage. The pressure of the load normally tends to hold the parts in engagement, but positive securing-means, such as angle-straps i engaging the sides and ends, and corner cleats j bolted to the bottom a are provided. A flat-bottomed tub or wagon body is illustrated in Figs. 1 and 3, the ends e, f being engaged with the bottom prior to the sides c, d being engaged with the bottom and ends. In the case of a well-bottomed wagon, to which a buffer beam x of the construction described in Specification 222,705, [Class 103 (v), Railway &c. vehicles, Draught &c. appliances for], is to be applied, the hook portions of the bottom do not extend along the edges of the wall a<3>, Fig. 7, but, above the well, the hook portions g' of the ends e, f are engaged with a flange x<3> on the buffer beam. An extension x<4> of the buffer beam passes through a slot y in the hook portion g' into a slot a<4> in the bottom a and is riveted to the vertical walls a<5> of the well by means of a U- shaped plate x<6>.
Patent GB-1347598-A (GB)
Title: Lincomycin derivatives and the manufacture thereof
IPC: C07H15/16
Filed: 1972-06-08
Abstract: 1347598 Lincomycin derivatives UPJOHN CO 8 June 1972 [23 June 1971] 26863/72 Heading C2C Novel lincomycin derivatives of the Formula I wherein Halo is Cl, Br or I; R is C 1-4  alkyl, and Ac is the acyl radical of an L-2-pyrrolidinecarboxylic acid of the Formulµ A and B above, R 1  is C 1-8  alkylidene, and alkyl contains 1 to 8 carbon atoms, ethers, esters and acid addition salts thereof are prepared by reacting the corresponding compounds in which the L-2-pyrrolidinecarbonyl radical is N-unsubstituted with 2- hydroxyethyl alkylating agents. Antibacterial compositions contain the above novel compounds together with pharmaceutically acceptable carriers.
Patent GB-234375-A (GB)
Title: Improvements in electric switches
IPC: H01H23/14
Filed: 1924-11-11
Abstract: 234,375. Lundberg, A. P., Lundberg, G. C., Lundberg, P. A., and Pegg, G. Nov. 11, 1924. Switches. quick-action. - Relates to tumbler switches with a quick action of the dead-centre toggle type and with means for positively driving the contact-member directly from the tumbler. An auxiliary member consisting of a metal stamping of double-U formation 9, 10 is secured upon the pivot pin 5 of the tumbler and retained by a projection of the tumbler lever. The cross. pin 21 of a telescopic, compression-spring member engages the slots 13 in the portion 10, the cross-pin of the socket portion 20, 23 of the telescopic member engaging the lower ends of slots in the arms of the contact-carrying member 14. The upper ends of the slots are engaged by inward projections 18 of the bridge which constitute pivots for the contact-member. The upper ends of the, contact-carrying member are extended beyond the pivot-pins 18 and are bent at 19 so as to project into the apertures 11 in the portion 9. In operation, the toggle is straightened and then the sides of the apertures 11 engage the projections 19 and drive the contactmember 16 out of the fixed contacts so that, when the dead-centre position is passed, a rapid action follows. In a modification, instead of employing an auxiliary member of double-U form the bulbous part of the tumbler is slotted to receive a Y-shaped member and formed with cavities at its sides equivalent to the apertures 11.
Patent GB-1190077-A (GB)
Title: Peptides and Process for Preparing them
IPC: C07K5/097
Filed: 1967-06-12
Abstract: 1,190,077. Peptides. FARBWERKE HOECHST A.G. 12 June, 1967 [11 June, 1966], No. 26991/67. Heading C2C. Peptides, optionally blocked by one or more conventional amino and/or carboxylic acid protecting groups, are prepared by condensing a first amino acid or peptide which has an N-acyl substituent and also has a free or activated carboxyl group, with a second amino acid or peptide the second amino acid or peptide having an amino group which may be substituted by a 2,4-dimethoxybenzyl group, that is capable of reacting with the free or activated carboxyl group of the first amino acid or peptide and at least one -CONH- and/or -CONH 2  group of the first or second amino acid and/or peptide employed being completely or partially substituted by one or more 2,4-dimethoxybenzyl groups, and, if desired, subsequently splitting off one or more 2,4-dimethoxybenzyl groups and/or one or more conventional amino and/or carboxylic acid protecting groups. The 2,4- dimethoxybenzyl groups are split off by treatment with strong inorganic or organic acids or in the case of use as -CONH- substituent, by treatment with Na in liquid NH 3 .
Patent GB-706480-A (GB)
Title: Improvements in and relating to silk screen printing machines
IPC: B41F15/38
Filed: 1950-11-06
Abstract: 706,480. Stencilling-apparatus. BROWN, W. C. Nov. 6, 1951 (Nov. 6, 1950], No. 27022/50. Clas 100 (2) A silk screen printing machine comprises a rotary frame to which the stencil screen 14 can be secured, a reciprocating flat bed 9 carrying the sheet to be printed, a toothed sector 7 and rack 8 whereby the frame is swung in synchronism with the bed, printing being effected by movement in each direction by a squeegee 13 mounted centrally below the axis of the frame, ink reservoirs 15 positioned one on each side of the squeegee and means operated by the swinging movement of the frame to allow ink to fall on to the screen during each reciprocating movement of the bed. The frame comprises a pair of semi-circular members 1 rotatably mounted on a shaft 6 and maintained in the spaced relationship by cross-pieces 2. The screen is stretched over the members 1 by a series of screws 37 accommodated in slots 36 and carrying travelling nuts provided with hooks for engagement with eyelets in the edge of the screen. The ends of the shaft 6 are vertically adjustable by screws 12 to bring the screen into correct printing contact with the screen. Gates 16 of the reservoir are controlled by jointed rods 17 linked for opposite movement by a cross-arm 18 and controlled by cams 21, 25 mounted on shafts 22, 26 carrying pinions 23, 27 meshing with a gear 24 which is fixed to the frame of the screen so that as the screen turns the gates 16, will be opened to ink the screen. Excess ink falling off the part of the screen which is uppermost is caught on a tray 32 and returned by ducts 33 to the reservoirs. The bed is movable on rollers 11 and has sheet grippers comprising spring loaded plungers 40. At the end of each stroke the grippers are opened by engagement between the ends of the plungers 40 and cam members 41 under the bed ; the printed sheet is removed and a fresh sheet inserted. The reservoirs are readily replaced by others filled with ink of a different colour.
Patent GB-295858-A (GB)
Title: An improved system of storing motor road vehicles and means for carrying same into practice
IPC: E04H6/36
Filed: 1927-10-12
Abstract: 295,858. Bell, W. I. Oct. 12, 1927. Garages; warehouses.-A storage system, particularly applicable to motor garages, comprises the use of one or more platforms, each adapted to receive a number of the articles to be stored (such as two rows of cars, side by side in each row) and a number of trucks, each adapted to hold at least one of the articles to be stored, the platforms being movable on rails and the trucks being movable on other rails arranged at rightangles to the direction of movement of the platforms. The latter occupy all the available floor space except that required for one track for the trucks, and for an alley-way in which the trucks normally stand. The arrangement is such that the trucks can deliver a car &c. on to, or receive it from, any part of any one of the platforms. In the arrangement shown, each platform 1, capable of accommodating eight cars, is movable on rails 2, at right-angles to which are rails 4 for the trucks 5. There is an alley-way 3 alongside the platforms, having entrance and exit ends. The floor spaces between the ends of the tracks 4 in the alley-way, the floors of the trucks, and the platforms, are all on the same level. Fixed-platforms or spaces 6 may be provided adjacent the end tracks 4. Auxiliary doors may be arranged, to facilitate direct access to the platforms if desired. Each space on the platforms may have a lock-up cage thereon. The platforms and trucks may be moved either manually or by poweroperated means.