baber/WOPTO huggingface dataset:
Patent GB-829357-A (GB)
Title: Improvements in or relating to cylinder printing machines
IPC: B41F3/58
Filed: 1957-09-24
Abstract: 829,357. Printing machines. SCHNELLPRESSENFABRIK AKTIENGESELLSCHAFT HEIDBERG. Sept. 24, 1957 [July 3, 1957], No. 29908/57. Class 100(2) In a cylinder printing machine having type bed reciprocating mechanism comprising a gear wheel 6 reciprocated by a crankshaft 2 and connecting rod 4 and meshing with a racked bar 7 fixedly attached to the frame 1 of the machine and with a racked bar 8 fixedly mounted under the type bed 9, guard plates mounted on the bed 9 and on a reciprocating roller carriage interposed between the bed and the machine frame co-operate with each other and with stationary guard plates mounted on the machine frame in such a way as to screen the type bed reciprocating mechanism against the entry of foreign objects at all positions of the reciprocating type bed. As the gear wheel 6 is reciprocated the bed 9 is made to move over twice the distance covered by the gear wheel. Gear wheels 28, 29, Fig. 5, mounted on cross-shafts 30, 31 of the roller carriage both co-operate with racks on the underside of the type bed and on the machine frame (Fig 4, not shown) so that the movement of the bed is transmitted to the carriage which, however, moves through only half the distance travelled by the bed. Guards 36, 37 are mounted between roller tracks 13, 14 of the roller carriage, a space 38 being left between them to allow the gear wheel 6 to engage the rack 8. The guard 37 has two extensions 39. A guard 40 is mounted on one end of the type bed 9 and has cutouts 45, 46 (Fig. 3) to co-operate with blades 43, 44 formed on the upper side of guards 41, 42 fixedly mounted on the mechine frame 1 above the crankshaft 2. A sheet of paper falling to the right of the type bed as seen in Fig. 1 is prevented from falling into the drive by the guards 40, 37, 41, 42, and is pushed to the right by the extension 39, being finally ejected into a space formed between covers 47, 48 and the machine frame by the guard 40 as the bed reaches the end of its run A sheet of paper falling to the left of the bed is kept out of the drive by the guard 36 cooperating with a fixed guard 51 on the machine frame.
Patent GB-630083-A (GB)
Title: Improvements in and relating to methods of selecting rectifiers for balanced modulators of ring type
IPC: H03C1/58
Filed: 1946-10-08
Abstract: 630,083. Modulating systems. TUCKER, D. G. Oct. 8, 1946, No. 29942. [Class 40 (v)] Non --linear resistors for a balanced ring type modulator are so selected and arranged as to give an output which is a minimum for even harmonics of the carrier frequency. Any three of the resistors, e.g. 1, 2, 3, are selected at random and the fourth is selected by trial to give a. minimum output at the fundamental frequency of the carrier which is supplied at 8. Either pair of resistors, e.g. 1 and 3 or 2 and 4, are now interchanged and a final balance is achieved by adjustment of potentiometer 5.
Patent GB-523657-A (GB)
Title: Improvements in or relating to transmission mechanism for motor vehicles
IPC: B60K17/344
Filed: 1938-10-17
Abstract: 523,657. Motor-vehicle driving-gear. BLAGDEN, W. M., BIRMINGHAM SMALL ARMS CO., Ltd., and PERKINS, H. Oct. 17, 1938, No. 29972. [Class 79 (ii)] The output shaft 6 of a main change-speed and reverse gear-box 7 is coupled directly to the longitudinal drive shaft 5 of a combined reversing, differential and transfer gear 3 disposed centrally between the main side frame members 1, the shaft 5 carrying forward and reverse pinions or clutches 8, 8a either of which can . drive the differential shafts 10 which are connected by transverselydisposed gearing to longitudinal output shafts 16 arranged at opposite sides of the vehicle and driving the vehicle wheels. In the construction shown the pinion 8 can engage a gear 9 to drive the differential gear in one direction, and the pinion 8a can engage the other gear 9 through an idler gear (not shown) to drive the differential in the other direction. Instead of sliding the gears 8, 8a, dog clutches can be used. The differential gear drives gears 11 connected by chains or idle gears to gears 13 on stub shafts 16 which drive the road wheels through couplings 18, propeller shafts 4 and bevel or other suitable gears. If a very low reverse gear is provided in the main gearbox this can be used as a low forward speed by engaging the reverse gears in the main and transfer boxes. The transfer reverse is controlled by a hand lever 19 which may be coupled to a master guide plate 21 of the steering gear described in Specification 523,656, so that when the transfer reverse gear is in use the steering gear actuates only those wheels which are normally the rear wheels, the others being locked. The. vehicle may have more than two front or rear driving wheels.
Patent GB-729411-A (GB)
Title: Improvements in or relating to electrical resistors
IPC: H01C7/22
Filed: 1953-10-30
Abstract: 729,411. Resistance coatings and deposits. WELWYN ELECTRICAL LABORATORIES, Ltd., and BROWNING, J. Oct. 30, 1953, No. 30065/53. Class 37. A resistance film in the form of a band is bonded to a longitudinally curved core of insulating material and is of greater length than the core. In the embodiment described gold/platinum resinate is deposited on a cylindrical glass rod and the resinate is decomposed at a temperature of approximately 450-550‹ C. The resulting gold/platinum film is then worked into a helix, e.g. by etching or cutting, and the film fired at 600-700‹ C. While the glass is still malleable it is deformed, e.g. in the shape of an arc, or as shown, an annulus, for use in a variable resistor. The resistance value of the helical film 6 has remained substantially unchanged by the bending of the glass core.
Patent GB-951146-A (GB)
Title: Improvements in or relating to multivibrator circuit arrangements
IPC: H03K3/281
Filed: 1961-08-21
Abstract: 951,146. Valve and transistor multivibrator circuits. SIEMENS & HALSKE A.G. Aug. 21, 1961 [Aug. 22, 1960], No. 30086/61. Headings H3P and H3T. A multivibrator having two cross-coupled switching elements is characterized in that a capacitor C1 is connected between the control electrodes of the two valves or transistors to prevent operation of the circuit by interference pulses of low power and random or alternating polarity. As described, Fig. 1, a bi-stable multivibrator comprises a pair of transistors with the capacitor C1 connected between the bases, the size of the capacitor being such that the time constant formed by it and the associated resistors is small compared with the duration of control pulses. Figs. 2, 3 (not shown) disclose an astable and a mono-stable circuit respectively. Valves may be used instead of transistors, with the capacitor C1 connected between control grids.
Patent GB-1004793-A (GB)
Title: Copolymers of 4-methyl hexene-1
Inventor: CLARK KEITH JASPER
IPC: C08F210/00
Filed: 1963-07-31
Abstract: A solid transparent (defined) copolymer of 4-methyl hexene-1 with a minor amount of a linear 1-olefine having from 4 to 18 carbon atoms is prepared by copolymerizing the two monomers, using the method of polymerization and purification described in Specification 942,297. In the example, 4-methyl hexene-1 is bulk copolymerized with pentene-1 with a catalyst comprising titanium trichloride and aluminium diethyl chloride and the copolymer is purified with a mixture of acetyl acetone and isopropyl alcohol.
Patent GB-480035-A (GB)
Title: Improvements in and relating to hand tools known as braces
IPC: B23B45/06
Filed: 1936-11-07
Abstract: 480,035. Wrenches. JAMES, A. A. Nov. 7, 1936, No. 30392. [Class 61 (iii)] [Also in Group XXII] A cranked brace for screwing-up nuts &c. has a bridge piece extending from one to the other of the two arms of the crank at or near the coaxial parts of the stem so as to enable an additional lever to be used therewith. In one form a rod 22, Fig. 1, which normally lies within the hollow stem 21 may be withdrawn to engage a recess 23 in the stem 24 and provide a fulcrum for a lever to be used against the handle 13. In another form a bar may be pivoted to the junction of one crank arm and the stem so as normally to lie along either member but be capable of being rotated about the pivot to engage the other crank arm and lie in line with the stem, and in another form a separate bar is slotted at the ends to hook over the two stems and crank arms at their junctions. In a further form a bar 51, Fig. 4, is bent as shown either in full or dotted lines to engage the stems and crank arms of the brace 53 and this form may be used either with a lever or by itself to constitute a two-handed brace. Specification 461,870 is referred to.
Patent GB-421013-A (GB)
Title: Improvements in or relating to modulated high frequency transmitters
IPC: H03C1/06
Filed: 1933-11-01
Abstract: 421,013. Valve generating circuits. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Nov. 1, 1933, No. 30406. Convention date, Nov. 1, 1932. [Class 40 (v)] Distortion in a modulated carrier-wave transmitter is compensated by rectifying voltages derived from the modulated output and applying these voltages, which comprise a distorted form of the original modulating voltages, to oppose the modulating voltages. The invention is described with reference to amplitude modulation. In one arrangement, Fig. 1, which provides only partial compensation, the output of a modulating valve 1, having its grid-filament circuit connected to a high frequency source HF and a modulating source 3, is rectified by a diode 2 and the resultant fluctuating voltages across resistance R form part of the bias applied to valve 1. This arrangement may also be applied between the output and input of the oscillator and modulator valves respectively in an anode choke-modulated transmitter, Fig. 2 (not shown). In the modification shown in Fig. 3, the distorted modulated output from valve 1 is amplified by a non-linear amplifier HFA before rectification at 2. In the further modification shown in Fig. 5, the rectified output of 2 is connected across a diagonal of bridge 9 and the modulating voltages from 3, besides being applied as usual to the valve 1 are applied across the other diagonal. Distortion components alone are picked up from one arm of the bridge and applied by transformer 7<1> to the grid circuit of valve 1. A further modification, Fig. 6 (not shown), combines the methods of Figs. 1 and 5, an amplifier shunted by a protective discharge tube being interposed between bridge 9 and transformer 71. Specifications 383,412 and 410,668 are referred to.
Patent GB-874480-A (GB)
Title: Improvements in or relating to anti-snoring devices
IPC: A61F5/56
Filed: 1957-09-30
Abstract: 874,480. Anti-snoring devices. LE GALLEY, K. B., and SCHOFIELD, J. C. Sept. 30, 1957 [Oct. 5, 1956], No. 30535/57. Class 81 (2). An anti - snoring device comprises two moulded plastic members A, adapted to be placed beneath the tongue at either side to raise it from its normal rest position, connected together by a U- shaped resilient wire B. A cord attached to the wire, for fixing on to the patient's clothing, is provided to prevent the device being swallowed.
Patent GB-1432886-A (GB)
Title: Extrusion apparatus scanning elect
IPC: B29C48/90
Filed: 1974-07-10
Abstract: 1432886 Moulding double walled tubes W HEGLER 10 July 1974 [22 March 1974] 30610/74 Heading B5A [Also in Division F2] A double walled polyvinyl chloride tube comprises an outer annularly or helically corrugated wall, and a cylindrical inner wall fused thereto. The outer wall is formed from an outer tube which is continuously extruded into a moving continuous corrugating cavity defined by the co-operation of a pair of endless chains of moving mould halves 4, Fig. 3, and the inner wall is formed by a simultaneously extruded inner tube which is urged into fusing contact with the outer wall, around a support 11 which is mounted for free radial displacement on an extension 10 of the mandrel 6 of the die from which the inner tube is extruded. The corrugations are formed by corrugating cavity grooves into which the outer tube is urged by vacuum applied through the mould halves, and air at above atmospheric pressure admitted through a die passage 9. Supporting air, at preferably a higher pressure, is admitted via a passage 8 to the interior-of the inner tube, which is pressed against the outer tube by the support which, in Fig. 1 (not shown), may comprise merely the ring 11 of the Fig. 3 embodiment, which is retained by a threaded end ring for free radial displacement against a spring 14 compensating for the weight of the support 11. For a thicker inner wall, a further support may be provided, as in Fig. 3, comprising axially spaced sets of barrel shaped rollers 40, 41 which are rotatably mounted in a bearing ring for free radial displacement against a weight compensating spring 43. The roller sets 40, 41 are circumferentially staggered to respectively press upon different circumferential parts of the inner tube and preferably act to squeeze the locations of fusion between the walls to a thickness of that of the outer walls, thereby facilitating the cutting of drainage openings. In the Fig. 2 embodiment for applying a thinner inner wall, e.g. of 0À05 mm. the support 31 is radially displaceable against a leaf spring 32, and comprises one or a plurality of helical surface grooves which are preferably of opposite hand to the corrugations. Supporting air is admitted to the interior of the inner tube at a pressure of 10 to 30% above atmospheric, and in flowing along the helical grooves forms an air cushion between the inner tube and the external surface of the support 31. The supports 11, 31, and rollers 40, 41 may be highly polished or provided with a coating of polytetrafluoroethylene to reduce friction.
Patent GB-818125-A (GB)
Title: Improvements in zig-zag sewing machines
IPC: D05B19/00
Filed: 1957-10-01
Abstract: 818,125. Sewing machines. PFAFF A. G., G. M. Oct. 1, 1957 [Oct. 9, 1956], No. 30634/57. Class 112 [Also in Group XXIV] Needles, shifting laterally; feed, regulating. In a zig-zag sewing machine an assembly of cam discs for controlling the needle displacement and another assembly of cam discs for controlling the stitch length are mounted on a common rotary shaft. The latter assembly being displaceable axially for selective co-operation with a cam follower and being also displaceable angularly to set up a predetermined phase relationship between said assemblies. A vertical rotary cam shaft 29, journalled in a bearing sleeve 31, has secured thereto by a screw 32 a tubular member 33 which supports a sleeve 35 to which is secured an assembly of cam discs 36 for controlling the needle displacement. Said discs are coupled to the member 33 by means of a pin 34 projecting upwardly from the latter. A sleeve 39, journalled on the upper end of sleeve 35, is biased downwardly by a spring 43 and is formed with a manipulating knob 40 by means of which sleeve 39, and a pair of stitch-length controlling cams 27, 28 secured thereto, may be shifted axially and angularly. Cams 27, 28 are formed with three equally spaced holes 48 and three holes 48<SP>1</SP> displaced 30 degrees therefrom. The lower disc 28 is formed with three equally spaced holes 49 and three holes 49<SP>1</SP> displaced 30 degrees therefrom. The arrangement is such that sleeve 39 may be raised and turned in order to engage holes 48, 48<SP>1</SP> selectively with three pins 47 which project upwardly from the topmost of the cams 36, when cam 27 cooperates with a follower 26 pivoted at 24, or to engage holes 49, 49<SP>1</SP> selectively with the pins 47, when cam 28 co-operates with the follower 26.
Patent GB-828686-A (GB)
Title: Improvements in compositions for the dewooling of sheepskins or the dehairing of skins
IPC: C14C1/06
Filed: 1955-10-26
Abstract: 828,686. Depilatory paint. BOOTH, H. Oct. 9, 1956 [Oct. 26, 1955], No. 30683/55. Class 76. A composition to be applied to the flesh side of skins as a paint for their dehairing, and especially for the removal of wool from sheepskins, comprises an aqueous mixture of a substantially lime-free alkali such as caustic soda, a relatively small amount of a water-soluble sulphide such as sodium sulphide, an inhibitor acting in the skin for the oxidation of the sulphide such as sodium sulphite, and a promoter acting on the wool or hair for the sulphide oxidation such as finely-divided iron, ferric oxide or china clay (containing iron compounds), which latter may act as a thickener. A separate thickener such as calcium carbonate and starch may be used.
Patent GB-384050-A (GB)
Title: Improvements in or relating to cigarette making machines
IPC: A24C5/39
Filed: 1931-11-05
Abstract: 384,050. Cigarette-making machines. MOLINS, W. E., 2, Evelyn Street, Deptford, London. Nov. 5, 1931, No. 30684. [Class 130.] In a tobacco-feeding apparatus comprising a rotatable carded roller, for example a distributer roller 3, a picker roller 5, a comb 15, an arcuate shroud 12 above and close to the picker roller, and a dust-removing suction device 13, 14 communicating with the space between the picker roller and the shroud, the latter extends sufficiently far round the roller 5 to ensure that any dust thrown off the roller 5 towards the roller 3 will be caught by the shroud unless it is travelling in substantially the same direction as the tobacco. As shown, the picker roller 4 adjacent to the combing roller 1 is provided with a similar shroud 8 forming a wall of a compartment 9, and the compartments 9, 16 may be connected to the suction device. Fans 24 may be provided on the ends of the picker rollers to blow back dust from the bearings. Magnets 7 remove nails or particles of iron from the tobacco, and dust on the shroud 8 is shaken off by hammers 19 carried by levers 20 operated by pins 21 on a wheel 22 and by a spring 23. Specifications 249,575 and 288,755, [both in Class 130, Tobacco], are referred to.
Patent GB-726522-A (GB)
Title: Improvements in and relating to mixed ferrite compositions
IPC: C04B35/26
Filed: 1953-11-06
Abstract: 726,522. Magnetic compositions. GENERAL ELECTRIC CO. Nov. 6, 1953 [Nov. 8, 1952], No. 30807/53. Addition to 701,364. Class. 38 (2). A magnetically soft ferromagnetic ferrite composition which may have a substantially rectangular hysteresis loop comprises the constituents of the composition forming the invention of the parent application, with the modification that the iron oxide content is increased to 49-60 mol. per cent with a corresponding reduction in the amount of nickel oxide.
Patent GB-503972-A (GB)
Title: Improvements in and relating to the protection of electric cables
IPC: H02H7/22
Filed: 1937-11-11
Abstract: 503,972. Indicating faults. ALTHAM, T. F. Nov. 11, 1937, No. 30916. [Class 37] [Also in.Group XXXVII] For indicating or recording faults in a cable, the change in capacity of the condenser constituted by the core 1, insulation 2, and sheath 3, is utilized to disturb an oscillatory circuit of ordinary character excited by transformer 4. A galvanometer 5 or alarm-actuating relay 6 is located in the anode circuit of the valve.
Patent GB-502201-A (GB)
Title: Improvements relating to operating mechanism for electric switches
IPC: H01H21/36
Filed: 1937-11-11
Abstract: 502,201. Switches held set and freed mechanically. DRAKE & GORHAM, Ltd., and WORTHINGTON, B. P. Nov. 11, 1937, No. 30991. [Class 38 (v)] A moving contact 2 which bridges fixed contacts 1 of a switch, is mounted on a spring arm 3 pivoted at 4 which is pivotally connected at 7 to a link 6 having a pin and slot connection with an operating member 11 carrying a handle 13. To close the switch from the open position shown in Fig. 4, the member 11 is rotated about a pivot 12 in a clockwise direction, the relative movement between a pin 14 and a notch 9 at the end of a slot 8 in the link 6 holding the pin in the notch. The switch is held closed against a spring 10 by the oversetting of the linkages when the pin 14 crosses the line joining the pivots 7 and 12 as shown in Fig. 1. Rotation of the member 11 in a counterclockwise direction causes the pin 14 to roll up and out of the notch 9 and free the link 6 to allow the switch to open under the action of the spring 10 and gravity. Opening of the switch may alternatively be effected by the engagement of a pin 20 with a surface 21 on the link 6, which pin may be mounted on the member 11 or may be operated by hand, by remote electric control or by overload or no-voltage conditions. The pin 14 may be lengthened to co-operate with a slot in a door in the switch casing, to prevent its being opened while the switch is closed.
Patent GB-835818-A (GB)
Title: Improvements in or relating to magnetic cores for transductors and/or saturable reactors
Inventor: ATTENBURROW EDWARD HARRY
IPC: H01F41/02
Filed: 1957-10-03
Abstract: 835,818. Inductors. PARMEKO Ltd. Oct. 2, 1958 [Oct. 3, 1957], No. 31001/57. Class 38 (2). A laminated magnetic core of grain oriented silicon steel for a transductor or saturable reactor is designed to overcome undesirable saturation at butt points and cross-grain effects. The laminations are composed of the E- and I-shaped stampings shown in Figs. 1, 3, having grain directions indicated by the arrows. The core is built up from these stampings as follows : (a) a long E and an I, as shown in Fig. 1, over which is placed (b) a pair of short E's spaced apart as in Fig. 3, and then (c) a long E and an I as in Fig. 1, but reversed (Fig. 2, not shown). This stack is repeated as desired. In such a core the cross-sectional area at the central part of the limbs is approximately twothirds of that of ungapped portions elsewhere. The short E's may be of lower grade material. In a modification the stampings are of I- and long and short U-shapes.
Patent GB-864284-A (GB)
Title: Improvements in or relating to the preparation of 2-ethylcrotonoylurea
IPC: C07C275/50
Filed: 1958-09-29
Abstract: 2-Ethyl-cis-crotonoylurea is prepared by dehydrohalogenation of 2-ethyl-2-bromobutyrylurea with an oxide of cadmium, calcium, copper or zinc at an elevated temperature.  The process may be effected in an organic solvent such as isopropanol, ethanol or butanol, or alternatively the carbromal and the metallic oxide in a highly dispersed dry form, such as a powder, may be intimately contacted throughout the heating period, preferably at pressures below atmospheric.  Examples, in one of which the lower melting transisomer is also isolated, are given, and the catalytic hydrogenation of the product to diethylacetylurea is also described.  It is stated that the configurations of the cis and transisomers given in the parent Specification are incorrect.
Patent GB-274342-A (GB)
Title: Electrical measuring instruments
IPC: G01R1/02
Filed: 1926-12-07
Abstract: 274,342. Marks, E. C. R., (Weston Electrical Instrument Corporation). Dec. 7, 1926. Plug couplings. - A measuring-instrument is provided with pin terminals integral with the instrument and adjustable to fit differently spaced sockets. Fixed studs 11 project through the rear wall 4 of a voltmeter and form pivots for arms 18 carrying pin terminals 14, 15. The arms 18 are mounted on the studs 11 by means of nuts 9 and spring washers. The instrument may be enclosed in an insulating casing 13 having arcuate slots 16 in the rear wall through which the pins 14, 15 project and are clamped in adjusted position by screw clamps 17.
Patent GB-1471008-A (GB)
Title: Hydrated sodium hydroxide crystals and production of the same
IPC: C01D1/30
Filed: 1974-07-12
Abstract: 1471008 Sodium hydroxide AJINOMOTO CO Inc 12 July 1974 [19 July 1973] 31093/74 Heading C1A NaOH . 3À5 H 2 O crystals are produced by cooling a mixture of an aqueous phase constituted by an NaOH solution having a concentration of 32-34% by weight and a solid phase constituted by NaOH . 3À5 H 2 O crystals to a temperature lying in a range below the temperature at which the aqueous phase is saturated with respect to NaOH . 3À5 H 2 O. The NaOH concentration is calculated from the expression [NaOH/(NaOH+H 2 O)] x 100% by weight. The process may be carried out in a crystallization vessel whose inside surface is stainless steel. The temperature range may be 10-0‹ C.