baber/WOPTO huggingface dataset:
Patent GB-359537-A (GB)
Title: Improvements in rotary step-by-step switches for use in telephone or like systems
IPC: H01H67/06
Filed: 1930-07-24
Abstract: 359,537. Automatic exchange switches. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London.-(Sano, K. M. ; and Chevigny, G. ; 46, Avenue de Breteuil, Paris.) July 24, 1930, No. 22318. [Class 40 (iv).] In a rotary step-by-step switch, the feeder brushes, contact bank, and wiper assembly are formed as separate units which are mounted on a single supporting plate, the feeder brushes being pivotally mounted so that they may be rotated out of engagement with the wipers to allow free removal of the wiper assembly. As shown, the contact bank comprises terminals 2 secured together between insulating plates by bolts 7 which also support the bank on plate 1. The ends of the terminals which co-operate with the wipers are bent inwards so as to form an arc of a circle. The wipers are mounted on a fixed shaft 9 supported at one end in a downwardly extending slot 12 in the mounting plate 1, each wiper comprising a central disc portion and two peripheral arms 3. The feeder brushes 4 are secured between plates by two bolts 18, 19, the complete assembly being secured to the plate 1 by the bolt 18. The bolt 19 passes through a hole 21 in the plate 1 to facilitate movement of the brush assembly about bolt 18 in order that the brushes may be moved out of engagement with the wipers. The wiper arms 3 are joined to the central disc portions by shoulders 22 which upon rotation of the wipers ensure re-engagement of the feeder brushes with the wipers without straining the switch parts if the brushes have been entirely disengaged from the central portions of the wipers. The electromagnet 5 for stepping the switch wipers is secured to a yoke 52 by a bolt 25 which forms a, continuation of the magnet core. A nut 26 facilitates adjustment of the magnet with respect to its armature 32 which is pivotally mounted on a shaft 31 and carries an arm 33 which drives the operating pawl 34 and operates the interrupter springs 36. The armature is controlled by a spring 45 which is secured to a member 44 adjustably mounted on the shaft 31 and adapted to be locked in a set position by a bolt 46.
Patent GB-890968-A (GB)
Title: Improvements in or relating to collapsible cartons of cardboard or the like material
IPC: B65D85/32
Filed: 1959-06-30
Abstract: 890,968. Boxes. KNAPP. R. June 27, 1960 [June 30, 1959], No. 22347/59. Class 18. A collapsible cardboard box having cells, for eggs &c. formed by parallel transverse slits 12, terminal slits 13 and hinge lines 18 is made from a single blank bent to form a rectangular tube. Each cell is prepared by bending inwardly the grips 11 about the hinge lines 18, tabs 8 thereby being formed on the side walls. The grips 11 also hinge about slits 14, straps 9 being formed by having two such slits for each cell ; alternatively each pair of adjacent slits 14 may be replaced by a single hinge line separating one cell from another. A flap 15 may be provided for price-marking &c. and feet may be attached to protect the contents when placing the box on a hard surface.
Patent GB-313799-A (GB)
Title: Improvements in or relating to supporting means for the hinged lids of cabinets, such as gramophone and wireless cabinets
IPC: E05F1/10
Filed: 1928-08-02
Abstract: 313,799. Decca Gramophone Co., Ltd., (formerly Barnett Samuel & Sons, Ltd.), and Cozens, G. A. Aug. 2, 1928. Stays.-The hinged lids of gramophone and other cabinets are supported by a strut 5 pivotally connected to the lid and associated with a stationary cam 16 and one or more springs 20 so that as the lid is raised or lowered the cam guides the strut and thereby varies the tension of the spring to suit the varying load of the lid. The cam comprises an edge 16 which is eccentric to the pivot pin 11 of a forked link 9 pivoted to the stay-bar 5, the link carrying a roller 17. An adjustable spring 20 is arranged at each side of the link 9, which is slotted at 10 about the pivot pin 11. The cam 16 is formed integral with a plate 12 attached to the motor board 4 of the cabinet, the upper end of the plate being bent over and slotted to serve as a guide for the stay-bar. Notches 22 may be formed at the ends of the cam to hold the lid in the open and closed positions. The tension of the springs is adjusted by screwed rods and nuts 21. An adjustable plate 27 may be provided for the lower notch 23, as shown in Fig. 3<A>. The tension spring or springs may be arranged beneath the link 9.
Patent GB-785384-A (GB)
Title: Improvements relating to vulcanizable vinyl containing organopolysiloxanes
Filed: 1955-08-05
Abstract: A vulcanizable mixture comprises (by weight) from 60 to 94.5 parts of an organopolysiloxane convertible to the solid elastic state and having the average formula <FORM:0785384/IV (a)/1> where each R is an alkyl, cycloalkyl, aryl, alkaryl, aralkyl or halogenated aryl radical, at least 50 mol. per cent being methyl radicals, a has a value from 0.0086 to 0.18, b has a value from 1.80 to 2.0014, and a+b equals 1.98 to 2.01; (2) from 5 to 40 parts carbon black; and (3) from 0.5 to 5 parts of sulphur.  R radicals specified are ethyl, propyl, butyl, octyl, decyl, octadecyl, cyclohexyl, cycloheptyl, phenyl, diphenyl, naphthyl, tolyl, xylyl, ethylphenyl, benzyl, phenylethyl, chlorophenyl and dibromo-phenyl.  The siloxanes or co-polymers of the above general formula are made in known manner. Curing accelerators, such as mercaptobenzothiazole, diphenylguanidine, triphenylguanidine, tetramethylthiuramdisulphide, zinc dimethyldithiocarbamate, thiocarbanilide, hexamethylene-tetramine and benzothiazodisulphide, may be added.  The known preparation of low molecular weight methylvinyl siloxanes by hydrolysis and fractionation of the appropriate silanes or by copolymerization of suitable siloxanes is described and exemplified in Example 1 and their conversion in known manner into gums is also described and exemplified in Examples 2 and 3.  In other Examples, (4) a mixture of the copolymeric siloxane gum of (2), carbon black, sulphur, diphenyl-guanidine and benzothiazodisulphide was milled on differential rolls and the resulting product was press-cured at 150 DEG  C. to yield a rubber; rubbers were similarly made from (5) a mixture of a methylvinylsiloxane copolymeric gum, carbon black, and the accelerators of (4); and (6) a methylvinyl copolymeric gum, carbon black and benzothiazodisulphide.  The products are useful for making gaskets and flexible heating elements. Specifications 586,187, [Group IV], 618,451, and 620,693 are referred to.
Patent GB-170940-A (GB)
Title: Improvements in and relating to operating and control systems for the doors of railway carriages
IPC: E05F15/56
Filed: 1920-07-30
Abstract: 170,940. Hedley, F., and Doyle, J. S. July 30, 1920. Footboards and hand-grips. - In conjunction with the electrical control of the operating-devicesfor opening and closing the doors of railway carriages, the ends of the cars are provided with platform members 79, Fig. 33, raised above the level of the floors. The platform may be a telescopic structure 78 containing a spring 80, as shown in Fig. 34. The control boxes containing switch elements 73 are provided with hand-grabs 77 for use by the guard or operator.
Patent GB-931008-A (GB)
Title: Improvements in or relating to semiconductive materials
IPC: H01L35/16
Filed: 1960-06-29
Abstract: A homogeneous semi-conductor material has a composition which may be represented as:-  <TABS:0931008/II/1> The compositions are produced by heating the components together under a nitrogen atmosphere at reduced pressure.
Patent GB-766079-A (GB)
Title: Improvements in bloom and slab shears
IPC: B23D15/02
Filed: 1954-08-05
Abstract: 766,079. Shearing. SCHLOEMANN AKT.- GES. Aug. 5, 1954 [Oct. 5, 1953], No. 22807/54. Class 83 (4). In bar shears having upper and lower blades 4, 2, respectively, guided to reciprocate vertically, the upper blade 4 is connected by rigid members 6 to the bearings 7 of a crank-shaft 9 and has its downward movement limited by an adjustable stop 18 and the lower blade 2 is connected to the crank 8 and has its downward movement limited by a fixed stop 13. The bar 1 to be cut is fed on to the lower blade 2. The stop 18 is adjusted so that the head of a pin 15 secured to the members 6 engages the stop when the upper blade 4 is just out of contact with the bar 1 so that subsequent movement of the crank-shaft 9 causes the lower blade 2 to shear the bar 1 while the upper blade 4 remains stationary. Further cuts are made by oscillating the drankshaft 9.
Patent GB-228306-A (GB)
Abstract: 228,306. Williams, L. B. Dec. 8, 1923. Drip-preventing from stand pipes and the like. A spring- loaded valve in the outlet has the valve C normally held on its seat D by a spring G arranged between a tail-piece H on the valve and a cross-pin J fixed in the outlet. The stroke of the valve is limited by a second cross-pin K engaging a slot L in the tail-piece. The valve seat may be surrounded by bellmouthed lip E to prevent the formation of a vortex.
Patent GB-1349870-A (GB)
Title: Regulated electrical power supply
IPC: H02M3/335
Filed: 1971-04-19
Abstract: 1349870 Converting TEKTRONIX Inc 19 April 1971 [4 March 1970] 22901/71 Heading H2F [Also in Divisions G3 and H3] In a DC-DC converter, current from an input source 10 is periodically switched at 24 into a winding 20 of a linear transformer 22, the build up of current being monitored by a separate transformer 28 which is arranged to interrupt the current at 24 when it reaches a predetermined value. The output voltage is monitored at 64 and used to change the frequency of the pulses of current controlled at 24 so as to minimize variations in output voltage. As described, direct voltage which may vary between the limits 100-400V is derived from the mains 12 by a rectifier 10 and is periodically switched by a transistor 24 into the primary 20 of transformer 22. Transistor 24 is periodically turned on at a frequency determined by a triggered oscillator 72 synchronized to a voltage controlled oscillator 68. At the end of each pulse of current in winding 20, the resulting voltage induced in the secondaries 38 is rectified by diodes 40 and smoothed by capacitors 42 giving -4 kV at terminal 50. A voltage indicative of the output voltage is derived at 62 and compared at 64 with a battery or Zener diode (Fig. 3, not shown) and the resultant fed on line 66 (Fig. 2) to control the frequency of an oscillator 68 (20-30 kHz) using a programmable unijunction transistor 86. The pulses from 86 are fed via transistors 104, 130 and transformer 70 to synchronize a further oscillator 72 using a further programmable unijunction transistor 110, normally free-running at a much lower frequency. Pulses from oscillator 72 are fed on line 74 via a control circuit 26 (Fig. 3, not shown) to trigger the main switching transistor 24. Pulses induced in winding 84 of transformer 22 are added to the output of oscillator 72 so as to hold off conduction of transistor 24 while transformer 22 is still ringing. Fig. 5 (not shown) relates to a damper circuit comprising a diode bridge shunted by a transistor and connected across winding 82 of transformer 22 so as to damp out further oscillation. Fig. 6 (not shown) shows how the output voltage is made independent of input voltage by turning off transistor 24 each time the current reaches a predetermined value. Starting.-In Fig. 4 (not shown) a Darlington pair of transistors and Zener diode are used as a simple stabilizer to provide supply voltage for the oscillator 72 when the circuit is first switched on. This voltage is replaced by 50V derived by rectifying the output of winding 78 of transformer 22 when the system is operating correctly.
Patent GB-1031359-A (GB)
Title: Bi-level inverter circuit
IPC: H03K3/037
Filed: 1964-06-03
Abstract: 1,031,359. Transistor circuits. CONTROL DATA CORPORATION. June 3, 1964 [June 4, 1963], No. 22925/64. Heading H3T. A binary signal inverter comprises an amplifier in which saturation is prevented by negative feedback via a first non-linear device and in which a further negative feedback path comprising a second non-linear device is provided which prevents cut-off. As shown in Fig. 2, the amplifier comprises transistor TR-1 fed from the output of an OR circuit via a speed-up capacitor 31 and a non- linear level changing circuit comprising silicon diodes 26 ... 30. If an input of - 1-1V, representing a binary O, is applied to any of terminals 11a ... 11c, transistor TR-1 passes a low value of collector current which allows the emitter follower TR-2 to become conductive, giving an output voltage of - 5.8V representing a binary 1. Diode 22 becomes conductive to close a negative feedback path so as to prevent the collector current of TR-1 being cut off. An input of -5À8V, representing a binary 1, applied to any of terminals 11a ... 11c increases the collector current in TR-1 so that diode 45 is allowed to conduct and pass an output voltage of - 1-1V, representing a binary O, to the output terminal 13. Diode 23 becomes conductive so as to close a negative feedback path and prevent TR-1 becoming saturated. Gated bi-stable circuits.-In Fig. 4 (not shown), two circuits (B1, B2) of the type shown at 10 in Fig. 2, are reciprocally coupled via OR circuits comprising diodes (15a ... 15f) so as to form a bi-stable circuit. AND gates comprising diodes (9a. . - 9d) provide gated inputs.
Patent GB-428853-A (GB)
Title: An improved method of effecting a corresponding improvement in the condition of alcoholic liquids to that normally obtained by ageing
IPC: C12H1/16
Filed: 1933-08-16
Abstract: Brandy, and other spirits, liqueurs, wines, perfumes, and the like are improved in a manner corresponding to that effected by ageing by treating the liquid with oligodynamically active metals or compounds of such metals.  Silver, which may have a microscopically roughened surface layer, is an especially suitable metal.  Compounds of silver which are only difficultly soluble may be contacted with the liquid instead of metallic silver, or small quantities of soluble compounds may be incorporated therein.  The process may be carried out by placing the liquid in a vessel in which the active substance is provided both as a coating on the walls and as the material of or coating on insertion bodies such as porcelain rings or sand.  For example, porcelain rings or grains of sand coated with a fine layer of silver in the manner described in Specification 293,385 or 306,547, [both in Class 81 (i)], may be employed.  The liquid may be allowed to remain in or may be run through the vessel, the time of contact being suitably determined.  The active layer may also be arranged as a filter, the liquid in this case being clarified and aged in a single operation.  Silver phosphate may be used instead of silver as a coating for the insertion bodies in the method of contact for a period only.  Another method of treatment is to allow the liquid to flow through a vessel in which it is submitted to a weak electric direct current at a potential of 1-3 volts between electrodes whereof the anode at least is of silver or other oligodynamically active metal, the speed of flow being suitably proportioned to the strength of the current to give the required degree of treatment.  In some cases the initial or intermediate products may be treated instead of the liquid in its final form, for example, the diluted fresh wine distillate used in making brandy or the like, and the alcohol, distilled water and alcohol, or mixture of distilled water and alcohol used in making perfumes may be treated instead of the product to which aromatic substances have been added. Perfumes treated by the method have a disinfecting action.  Examples are given of the various methods of carrying out the process.
Patent GB-937778-A (GB)
Title: Boxes and cartons
Inventor: O'BRIEN KENNETH JAMES HERBERT
IPC: B65D5/49
Filed: 1961-06-24
Abstract: 937,778. Box partitions. PAZO CO. Ltd. June 7, 1962 [June 24, 1961], No. 22941/61. Class 18. A rectangular cardboard blank is folded along its central longitudinal axis and slit between points C, D and E, F so that when the portions of the blank are urged towards each other in the direction of the arrows, the panels between C, D and E, F move outwards from the plane of the longitudinal wall 1 to form transverse walls 2, 3. The blank may be glazed on one side only so that in the erected position all outer faces of the walls are glazed. The transverse walls 2, 3 can be extended to form further longitudinal and transverse walls.
Patent GB-307392-A (GB)
Title: Improvements in the preparation of "organosols" of cellulose esters with a view to their transformation into films, celluloid or artificial silk
IPC: D01F2/30
Filed: 1928-08-09
Abstract: 307,392. Ruth-Aldo Co., Inc., (Assignees of Introini, I. B. de). March 6, 1928, [Convention date] Void [Published under Sect. 91 of the Acts]. Compositions containing cellulose esters. - Cellulose ester solutions are rendered less viscous and more homogeneous by addition of gall or bile to the solutions, or by using solvents to which gall or bile has been added. The solutions yield celluloid of improved lustre. The gall employed is preferably ox gall freed from albuminoids by extraction with alcohol, but gall from other auimals, or a solution of dried gall extract, or a mixture, of the principal constituents of gall, such as cholesterin and (sic) sodium glycollate, also may be used. In an example, nitrocellulose is mixed with acetone, camphor, and an alcoholic solution of ox gall and the mas is extruded into rods.
Patent GB-902450-A (GB)
Title: Improvements in and relating to self-clocking system for binary data signals
IPC: H03K5/05
Filed: 1960-07-01
Abstract: 902,450. Telegraphy. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 1, 1960 [July 1, 1959], No. 23073/60. Class 40 (3). [Also in Group XL (c)] The invention provides a self-clocking system for binary data signals, particularly for signals subject to jitter distortion, and includes means for rephasing the clock signal relative to the incoming data signal at each transition in the latter. General operation, Fig. 1.-Data signals from a source 17 pass to a clamping-pulse generator 12 and to a sampling circuit 13. The generator 12 feeds a clamp 11 which controls the phasing of a free-running multivibrator 10. The out-. put of the sampling circuit is thereby clocked with reference to the multivibrator output. Detailed operation.-In the clamping pulse generator and clamp, Fig. 5, binary signals such as DS, Fig. 2, pass direct to one input of an OR circuit 18 and via a half-bit delay 19 to the other input. The OR circuit output is inverted, line 4, Fig. 2, and passed to the clamp circuit 11. The output of the clamp 11 is employed to vary the phase of the multivibrator 10, Fig. 1, the multivibrator output-the clocking signalbeing as in line MV, Fig. 2. Fig. 6 shows an alternative circuit of the pulse generator and clamp, the generator comprising a phase inverter 27 which feeds two mono-stable triggers 26, 27. These triggers generate clamping pulses having a length determined by the discharge rates of capacitors 28, 28<SP>1</SP>. Transistor 29 acts as the clamp. The sampling circuit, Fig. 7, comprises AND circuits 31, 32, a bi-stable trigger 34 and an inverter 33. The trigger output is the clocked data, line 6, Fig. 2, resulting from the inputs of clock pulses MV and data signals DS. Trigger 34 is triggered only by negative-going pulses.
Patent GB-153734-A (GB)
Title: Improvements in gun-sights
IPC: F41G1/16
Filed: 1919-09-19
Abstract: 153,734. Johnston, C. A. Sept. 19, 1919. Sights.-Consists in the combination of a foresight formed with an open V-notch and a backsight comprising an inclined plate marked with a central bright line. In the backsight shown in Fig. 2, there are two plates b, b<1>, one for use when the leaf b<2> is up and one when it is down. The foresight A, Fig. 1, is inclined rearwards. In use, the top of the bright line c is brought into coincidence with the bottom of the nctch a as shown in Fig. 4. The backsight may be formed of a block of dull black porcelain marked with a white line. -
Patent GB-928901-A (GB)
Title: Improvements in or relating to stiffener material
IPC: C08J9/06
Filed: 1958-07-19
Abstract: A composition used in impregnating fibrous woven or non-woven material for shoe stiffeners comprises an emulsion of unplasticized polystyrene, an emulsion of polystyrene plasticized with dibutyl phthalate, ammonium carbonate and "Teepol" (Registered Trade Mark). A copolymer of styrene and polybutadiene is another suitable plasticizer.  The impregnated material is heated to decompose the blowing agent to give a porous product.ALSO:A composition used in impregnating fibrous woven or non-woven material for shoe stiffeners (see Group IV(a)) comprises an emulsion of unplasticized polystyrene, an emulsion of polystyrene plasticised with dibutyl phthalate, ammonium bicarbonate, and "Teepol" (Registered Trade Mark).  A copolymer of styrene and butadiene is another suitable plasticiser. P.V.C. and P.V.A. are specified alternatives to polystyrene.  The impregnated material is heated to decompose the blowing agent to give a porous product.
Patent GB-386273-A (GB)
Title: Improvements in electric fuses
IPC: H01H85/38
Filed: 1931-11-20
Abstract: 386,273. Fusible cut-outs. CRABTREE, J. A.; Endwood, Little Aston Park, Sutton Coldfield. Nov. 20, 1931, No. 23369/32. Divided on 386,086. [Class 38 (i).] The well a<1> in the base a into which fits a rib b<1> carrying a fuse wire f mounted on a handle b is lined with compressible refractory material c, c<1>, e.g., asbestos, and has an insert e of plaster-of-paris or other gas-absorbing or arc-quenching material. The insert e may be applied to the rib b<1> or to both the rib and base.
Patent GB-1381150-A (GB)
Title: Vehicle with a disc-brake installation
IPC: F16D65/12
Filed: 1972-05-18
Abstract: 1381150 Disc brakes; automatic brake control DAIMLER-BENZ AG 18 May 1972 [21 May 1971] 23392/72 Headings F2E and F2F In a vehicle braking installation actuated by a pressure medium and comprising disc brakes associated with wheels of a front axle or axles and a rear axle or axles, the brakes are so coordinated constructionally that upon heating of the brake linings during braking the ratio of the braking force and the disc volume swept by the brake linings is substantially the same for the front- and rear-wheel brakes and the braking force divided by the area of the brake linings is substantially the same for the front-wheel brakes as for the rear-wheel brakes whereby any variation of the coefficients of friction at the brakes is in the same direction. With equal effective disc thickness at the front- and rearwheel brakes the ratio of the frictional work and the swept brake surface, and the ratio of the frictional work and the area of the brake linings are substantially the same for the front-wheel and the rear-wheel brakes. In the disc brake shown in Fig. 1 a disc 2 is acted upon by linings 4 applied by pistons 4. The brake disc 2 has transition cross-sections 15 between the disc part engaged by the linings 4 and the hub part which is so small that heat conduction therethrough is very small.