baber/WOPTO huggingface dataset:
Patent GB-949212-A (GB)
Title: Improvements relating to phasing a moving record with a moving part of transducing means
Inventor: ELLIOT JAMES
IPC: H02P23/00
Filed: 1959-05-19
Abstract: 949,212. Automatic speed control. ELECTRIC & MUSICAL INDUSTRIES Ltd. May 19, 1960 [May 19, 1959], No. 16844/59. Heading G3R. A magnetic tape 1 is driven past a transducing head 2 capable of both recording signals on an auxiliary track and deriving signals therefrom, a rotatable mount 3 carrying a plurality of heads for recording or reproducing video signals, each of said heads co-operating with each of successive groups of tracks on the tape transverse to the direction of movement thereof. When the apparatus is set for recording video signals, synchronous motor 4 for driving the mount is operated at 400 c.p.s. and rotates at 200 revolutions per second. An optical or magnetic transducing head 5, detecting the speed of the motor, derives an oscillation having a frequency of 200 c.p.s. and this is applied through amplifier 7 to the head 2 for recording the signal on the auxiliary track. When the apparatus is set for reproduction, the head 2 receives the recorded signal whilst the head 5 derives an oscillation, corresponding to the speed and phase of motor 4, which is amplified to lock a sawtooth waveform of half the frequency in generator 9. The output signal from amplifier 8 is compared with regard to phase with the oscillation from head 5 in a phase detector 6 the output of which comprises a D.C. error signal applied to phase shift device 10. The output of this device consists of a train of pulses corresponding to the points where the D.C. error signal intersects the longer descending portions of the sawtooth waveform from the generator 9. The pulses are applied to a circuit which produces a sine wave and is tuned to 400 c.p.s., and phase modulates the waveform from this circuit. This waveform is applied through amplifier 13 to the motor 4 which is locked into phase with the recorded reference signal. Since the sawtooth has a periodicity which is one half of that of the mount, the maximum mechanical phase adjustment obtainable is in excess of 180 degrees, the mechanical phase shift being double the electrical phase shift. The circuit 10 comprises valves V1, V2, the sawtooth from generator 9 being applied to terminal 15. The D.C. error signal is applied with opposite polarity to terminals 14 and thence to the control electrode of valve V1. The signal at the anode of valve V1 is of pulse form and is applied through capacitor C1 to the control grid of valve V2 affording a sinusoidal output tuned to 400 c.p.s. and having the correct driving frequency for the motor 4. Specification 919, 481 is referred to.
Patent GB-297162-A (GB)
Title: Improvements in and relating to signs or advertising devices and the like
IPC: G09F13/12
Filed: 1927-06-24
Abstract: 297,162. Cutmore, C. M. June 24, 1927. Signs.-An advertising sign comprises in combination a stencil 3, Fig. 2. a transparent reflecting surface 2, which is so situated as to reflect an image of the stencil when illuminated by daylight, and a second stencil 4 which is adapted to be artificially illuminated so as to become visible through the transparent reflecting surface. An external lamp may be used, or, as shown, lamps 7 for lighting the second stencil may be enclosed in the sign; these lamps may also illumine external objects. The second stencil may be in strips, as shown, or it may be a vertical sheet. The stencils may be similar or different. and they may be so arranged as to be visible both at the same time. One or more additional stencils may be employed behind the lamps 7 so that when the lamps are in use the sign exhibits its advertisements in several directions. In the modification shown in Fig; 6, a single stencil 4 is arranged on the front of the transparent mirror 2. The mirror may be a sheet of plate glass. a thinly-silvered mirror, or one with alternate strips of clear and silvered surfaces. Coloured glass 5, 6 may be used with the stencils, or the latter may'be painted on coloured glass. Specification 279,521 is referred to.
Patent GB-312697-A (GB)
IPC: B27K3/36
Filed: 1929-05-31
Abstract: 312,697. Bronner, E. May 31, 1928,. [Convention date]. Void [Published under Sect. 91 of the Acts]. Waterproofing; proofing against bacteria.- Wood, leather, skin, or fur is impregnated by first treating in successive baths of absolute alcohol, preferably with the addition of about 2 per cent. of phenol, until the water is extracted from the material. It is then treated with benzol or xvlol or other liquid capable of dissolving paraffin, to remove the alcohol, several baths being used. Finally the material is immersed in a molten batn of hard paraffin having a melting point of 42‹-52‹ C. or over, and left in long enough for the benzol &c. to be extracted. The material may be treated before the alcohol treatment with a 10 per cent solution of formalin.
Patent GB-1030884-A (GB)
Title: Vulcanizable compositions
IPC: C07D417/06
Filed: 1964-04-23
Abstract: A vulcanizable composition comprises a chlorine-containing polymer other than polychloroprene and from 0.1 to 10% based on the polymer of 2-thiazolidinethiones of formula <FORM:1030884/C3/1> or <FORM:1030884/C3/2> where R is a substituted or unsubstituted alkyl, cycloalkyl, aryl or aralkyl, furfuryl or morpholino-alkyl group and R1 is an alkylene group of 1 to 4 carbon atoms, a phenylene or a cyclohexylene group.  Specified polymers are chlorinated butyl rubber polymers of chlorinated and/or chlorosulphonated polyethylene, copolymers of ethyl acrylate and vinyl chloracetate and copolymers of ethyl acrylate and 2-chloroethyl vinyl ether. A long list of the above compounds is given while 2-methyl-2-thiazolidinethione and 3 - methyl - 2 - thiazolidinethione are used in the examples.  The usual curing agents may be present.
Patent GB-1426554-A (GB)
Title: Turbo superchargers for internal combustion engines
IPC: F01D17/14
Filed: 1972-04-13
Abstract: 1426554 IC engine exhaust turbochargers CAV Ltd 29 March 1973 [13 April 1972] 17016/72 Headings F1G and F1T The invention relates to a turbo supercharger for an I.C. engine, the turbocharger comprising a radial inward flow turbine 11 having a casing 10 which defines a pair of engine exhaust gas inlets disposed in side-by-side relationship. The casing also defines a volute passage 14 and an aperture 16a through which gas discharges from the volute on to the periphery of the rotor 11. A flexible band 16 is disposed within the volute extending from the end of the volute remote from the inlet towards the inlet, the band being movable from an outer portion shown in chain-dot lines to an inner position shown in full lines so as to vary the cross-sectional area of the volute throughout its length. A series of arcuate division members 18 are mounted on the flexible band the members co-operating with each other when the band is in the minimum area position, to divide the volute into two parts, each part of the volute being connected to one of the inlets. The division members, act to divide the aperture 16a so that the two streams of exhaust gas flowing into the inlets are maintained separate until the exhaust gas has impinged on the rotor. The flexible band is movable by means of an actuating member 17. The flexible band at its end adjacent the inlet carries a division plate 19 which when the band is in its contracted state extends into the inlet of the volute.
Patent GB-565177-A (GB)
Title: Household ash riddle
IPC: F24B15/00
Filed: 1942-12-01
Abstract: 565,177. Sieves. LEESON, T. Dec. 1, 1942, No. 17049. [Class 133] [Also in Group II] An ash sifter for household purposes comprises a bucket-shaped container A made of wire mesh pressed into shape and stiffened by a crossbraced framing C of stouter wire which is continued above the top of the container in the form of hooks B by which it may be suspended inside a household bucket. A handle D may be provided at the top and a further handle E at the bottom to facilitate emptying.
Patent GB-662293-A (GB)
Title: Improvements in or relating to dispensing pumps
Inventor: GIUSTI TITO
IPC: F04B9/14
Filed: 1949-06-28
Abstract: 662,293. Reciprocating pumps. GIUSTI & SON, Ltd., T. June 1, 1950 [June 28, 1949]. No. 17077/49. Class 102 (i). A dispensing pump comprises a hopper I that is tapered and connects through a non-return valve 7 to a cylinder 8 containing a piston 9 fitted with a non- return valve 15. The piston rod 10 is connected to a lever 25 pivoted on a stand for the pump. The rod 10 has several grooves 23 and a stop 21 can be attached by a screw 22 co-operating with one of the grooves 23 to vary the stroke of the piston. The cylinder 8 has a delivery spout 18.
Patent GB-380416-A (GB)
Title: Apparatus for indicating the direction of travel by means of electro-magnetically actuated direction indicators, in particular for motor vehicles
IPC: B60Q1/38
Filed: 1932-06-16
Abstract: 380,416. Mechanical switches without quick action. RUHL, M., 6, Ohmstrasse, Siemensstadt, and NEUMANN, E., 5, Schleswiger Ufer, both in Berlin. June 16, 1932, No. 17086. [Class 38 (v).] A switch for controlling signalling arms comprises a rotatable part 5 having a handle 3 and contact pieces 9, 10 connected with a metal plate 7 having a sector 7a and two projections 7b, 7c. Contact strips 11, 13, 14 are fitted on a baseplate 4, which also carries contact springs 15 .. 18 adapted to drop into recesses 8 on the member 5. A supply wire is clamped at 12 to the strip 11, and the centre part of contact piece 7 bears on the other end of this strip. The handle 3 has a luminous mark 28 which shows clearly above the dial. In a modification, Fig. 9, a circuit is closed by turning the switch cap 31 so that a contact spring 51 touches a contact spring 44.
Patent GB-165785-A (GB)
Title: Improvements relating to enamelling processes
IPC: C23D9/00
Filed: 1921-06-22
Abstract: 165,785. De Dietrich et Cie. July 5, 1920, [Convention date]. Vitreous enamelling.-In an enamelling process a current of purified gas is caused to ignite on entering the enamelling-chamber. and ignition continues in direct contact with the articles to be enamelled. In the gas generator one portion of the gas is drawn off and traverses a condenser, which retains the gas tar, oils, and any liquid or solid distillation product, and another portion is obtained by the gasification of undercarbonized coke and washed after deposition in two chambers of the very fine cinder. The two portions of gas are then reunited in a disintegrator, which also removes the last traces of oil by means of gas tar. The gases pass through a series of safety strainers and, shortly before entering the enamelling chambers, combustion commences owing to the introduction of a current of warm air. Combustion is thus started and is completed in the enamelling-chambers.
Patent GB-626188-A (GB)
Title: Lasting shoes
IPC: A43D21/12
Filed: 1947-06-30
Abstract: 626,188. Lasting shoes. CUOZZO, M. June 30, 1947, No. 17190. Convention date, Sept. 3, 1941. [Classes 17 (i) and 17 (ii)] Closed uppers of a pair of shoes, slippers, sandals &c. are secured together at the edges of their lasting margins and in each is placed one of a pair of forms or lasts 25 carrying an insole 26, Fig. 5. The lasting margins are then drawn simultaneously inwards over the edges of the lasts by a strand 31, arranged as shown, and tensioned by turning a handwheel 41, a pawl .44 on a ratchet wheel 43 coaxial with the wheel 41, holding the strand under tension as desired, until adhesive between the uppers and insoles has set. The bearings 36, in which a rod 37 carrying the guide pulley 38 is carried, may be adjustable to accommodate shoes of different sizes. Spool 39 of rubber or similar material may be slipped along the strand 31 to wipe the margins of the uppers over the insoles. If desired, a V-shaped strip or welt 65, Fig. 10, may be placed in the crease between the two connected uppers 20, as shown, and the strand 31 engaged therein to press the welt into adhesive attachment to the uppers and to last the uppers over the lasts on to the insoles. The heel seats and shanks of the upper may be lasted in apparatus as shown in Fig. 7, having inflatable wipers 50 as shown separately in Fig. 8. Supports 47, 48 engaging the crowns of the lasts 25, are adjustably mounted on a post 46 which carries the wipers 50. These latter are pivoted on a collar 51 supported on the post 46 between springs 59, and are drawn inwards by a spring 53 compression of which may be adjusted by turning a handle 54 on the screwed outer end of a pin 52. The uppers may comprise a skeleton fore part with or without a separate heel portion.
Patent GB-988359-A (GB)
Title: Improvements in or relating to frequency changers
Inventor: STRATTON LAWRENCE JOHN
IPC: H02M5/27
Filed: 1961-05-11
Abstract: 988,359. Transformers. LEAR SIEGLER Inc. May 11, 1961, No. 17214/61. Heading H1T. [Also in Division H2] A pulse generator (Fig. 2) for a static frequency changer (see Division H2) comprises a set of six saturable transformers 1<SP>1</SP>-6<SP>1</SP> for each half phase of the output supply. The transformers have toroidal cores of square loop material and each has four input windings, for example 50, 51, 52 and 53 and an output winding 54. The cores are saturated in one direction or the other except when the algebraic sum of the ampere turns in the input windings is substantially zero. An output is generated in an output winding only when the associated core switches from one direction of saturation to another. The windings 50 and 60 are connected in series between the phase voltage a<SP>11</SP>, n<SP>11</SP> and the windings 51 and 61 in series between the lines a<SP>1</SP>, c<SP>1</SP> such that the current in the windings 51 and 61 lags 120 degrees behind the current in phase I<SP>1</SP>, 90 degrees of the lag being due to the inductor 67a. The windings 53 and 63 are provided so that one group of rectifiers of the frequency changer do not fire when the other group are conducting and the windings 52 and 62 provide feedback to slightly advance the firing point in order to eliminate commutating overlap. A modified pulse generator (Fig. 6, not shown) has the input windings differently connected, for example the windings 50 and 60 are supplied from phases a<SP>11</SP>, b<SP>11</SP>, c<SP>11</SP> on cores 1 and 2, 3 and 4, 5 and 6 respectively, but operates in a similar manner to the generator described above.
Patent GB-755572-A (GB)
Title: Improvements in or relating to methods of making cylindrical articles
IPC: B28D5/02
Filed: 1954-06-11
Abstract: 755,572. Gramophone needles. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 11, 1954 [June 16, 1953], No. 17219/54. Drawings to Specification. Class 40(2) [Also in Group XXIII] Gramophone needles are made by tubedrilling cylinders from diamond, e.g. a diamond die which is unfit for further use as such.
Patent GB-120883-A (GB)
Title: High Tension Continuous Current Dynamo Electric Machines.
Inventor: BOLLIGER ADOLF
IPC: H02K13/00
Filed: 1918-10-22
Abstract: 120,883. Bolliger, A. Oct. 22, 1917, [Convention date]. Low - pressure metallic - vapour apparatus. - A revolving metallic - vapour rectifier comprises a vapour chamber D connected with an annular space R for the cathode metal Hg and a condensation space C for the metal vapour. The space R is lined with metal strips K connected with a slip-ring S<2>, which may be mounted on the ring R. The anodes A<1>, A<2> are arranged in insulating protecting casings. The conductors L', L<2> leading to the anodes may be cooled by a fan T. The rectifier is formed with an axial passage for the reception of the driving- shaft.
Patent GB-278450-A (GB)
Title: Process for the saccharification of wood
Filed: 1926-07-09
Abstract: 278,450. International Sugar &. Alcohol Co., Ltd., (Soc. Industrielle de la Cellulose). July 9, 1926. Glucose. - A process for saccharifying wood in which highly concentrated hydrochloric acid, for example 40 per cent, and hydrochloric acid gas is employed, consists in using sufficient quantities of acid and gas to convert only a portion of the cellulose, the acid-moistened mass being thereafter treated at a second stage with hydrochloric acid of medium concentration (over 35 per cent) to complete the saccharification. According to the process example given, 38 per cent hydochloric acid is employed at the second stage in a diffusion battery and is accompanied by the complete separation of the solubles.
Patent GB-561126-A (GB)
Title: Improvements in packing means for ampules and other similar articles
IPC: B65D5/66
Filed: 1942-12-05
Abstract: 561,126. Containers for ampules &c. WASHINGTON, G. E., and WASHINGTON, H. Dec. 5, 1942, No. 17339. [Class 18] A container for ampules a or other small articles is divided into compartments c separated by spaces c<5> by arranging a strip of cardboard, fibreboard, paper or similar material made from pulp in zig-zag form as shown, the length of strip connecting the two opposite walls of a space c<5> being less than the width of the smallest article.
Patent GB-564803-A (GB)
Title: Improvements in and relating to air-craft of the rotary wing type
IPC: B64C27/04
Filed: 1942-12-05
Abstract: 564,803. Aircraft supported by rotating blades. BURNS, J. S., and MANSON, R. K. Dec. 5, 1942, No. 17342. [Class 4] An aircraft is propelled and supported by at least one power-driven, multi-bladed rotor of which the blades are cyclically feathered about radial axes during rotation of the rotor, for which purpose the shafts carrying the blades have pinions engaging toothed sectors pivoted in a rotatable hub and oscillated by a pin arranged eccentrically of the hub and engaging slots in the sectors. An aircraft is described having two four-bladed rotors 1, 2 mounted on horizontal longitudinal axes in bearings 7 on opposite sides of the fuselage. The blades are feathered so that the downwardly moving blades are broadside on as they pass through the horizontal plane of the aircraft. The blades of each rotor are mounted in pairs on two shafts 14, 15, Fig. 2, journalled in a hollow hub 13, driven by worm gear 10, 11 through a freewheel clutch, the worms 11 being mounted on shafts 12 connected to a central differential gear driven by an engine. Each shaft 14, 15 has a pinion 25 gearing with a toothed sector 16, 17 pivoted near the circumference of the hub, the sector 16 being shown pivoted at 54. The two sectors have central slots 23, 24 engaged by a pin 22 set eccentrically on the end of a normally stationary shaft 8 which is journalled in an eccentric bore in a sleeve 21 journalled in a sleeve 9 carrying the worm-wheel 10 and hub 13. The shaft 8 and sleeve 21 are fitted respectively with sprockets 44, 46 by turning which the pin 22 may be set centrally, in which case the blades do not feather, or displaced in any direction to vary the amplitude and phase of the feathering movement. As the incidence of one blade increases that of the opposite blade diminishes, the two blade surfaces being approximately at right angles to one another. Corresponding sprockets 45, 47, Fig. 6, are mounted on the opposite side of the aircraft and a chain 48 passes around the sprockets 44, 45 from the ends of a lever 34, and a chain 50 passes around the sprockets 46, 47 from the ends of a lever 29 mounted on a fixed bracket 26, the lever 29 being connected by cables 30 to pedals 28. The lever 34 can be moved relatively to the lever 29 to centre or excentre the pin by a lever 35 having a threaded boss engaging a screwed spindle 31 pivoted to the lever 29. The phase of feathering is then controlled by moving both levers together by means of the pedals. A helicopter machine also is described in which two similar rotors are mounted on vertical axes, the propulsion of the machine in any direction being effected by the horizontal thrust of the blades when feathered.
Patent GB-1382095-A (GB)
Title: Polyester production
IPC: C08G63/78
Filed: 1972-04-14
Abstract: 1382095 Spray condensers; solvent recovery KURARAY CO Ltd 14 April 1972 [5 June 1971 21 Feb 1972] 17355/72 Heading B1B [Also in Division C3] A method of preparing polyesters comprises carrying out the polycondensation of bis (hydroxyethyl) esters of aromatic dicarboxylic acids in a reaction zone 1, maintained at a reduced pressure by connecting the reaction zone to the suction side of a jet pump 2, driving the pump with an ethylene glycol jet 11 to maintain the reaction zone at reduced pressures, collecting the ethylene glycol distilled off from the reaction zone 1 and the monomer and oligomer accompanying it by the driving ethylene glycol, and separating and recovering the collected ethylene glycol and the driving ethylene glycol from the monomer and oligomer via condensers 3 and 5 and filter 8. Polyethylene terephthalate is prepared in the Examples.
Patent GB-905573-A (GB)
Title: Improvements in flame tube construction for a gas turbine engine
IPC: F23R3/42
Filed: 1961-05-12
Abstract: 905,573. Generating combustion products under pressure. GENERAL ELECTRIC CO. May 12, 1961 [May 16, 1960], No. 17398/61. Class 51 (1). Combustion equipment for a gas turbine engine comprises inner and outer casings which form an annular air passage therebetween, at least one vane extending radially across the passage, a flame tube being mounted within the passage and extending downstream from the vane, the upstream end of the flame tube being formed with a notch or recess comprising a pair of walls spaced apart circumferentially and extending radially to the annular passage, and provided with a baffle portion extending transversely to the air flow through the passage and joining the walls, the baffle portion being formed with an apex extending generally circumferentially of the annular passage and transversely to the vane, and the vane being located in axiallyspaced relation to the notch or recess. The equipment shown comprises inner and outer casings 9, 8 forming an annular air passage within which is disposed an annular flame tube comprising inner and outer walls 3, 4 and an upstream portion 15. A strut 1 extends radially across the diffuser portion 7 formed between the walls 8, 9 and the upstream portion 15 of the flame tube is formed with a notch or recess 17 in which the trailing edge 1a of the strut is received. The notch 17 is formed by circumferentiallyspaced side walls 18, 19 and a transverse wall 20, the wall 20 being formed of V-shape with an apex 21 and acting as a baffle to deflect the air stream entering the notch into the inner and outer passages 7a, 7b. The flame tube also comprises an inner ring member 14 and fuel is supplied to the flame tube through injectors 12. The trailing edge of the strut need not necessarily be located within the notch 17.
Patent GB-617104-A (GB)
Title: Improvements in the control of multiple cylinder hydraulic presses
IPC: B30B15/24
Filed: 1946-06-11
Abstract: 617,104. Multiple cylinder hydraulic presses. SOC. D'OUTILLAGE MECANIQUE ET D'USINAGE D'ARTILLERIE. June 11, 1946, No. 17434. Convention date, Dec. 11, 1941. [Class 69 (ii)] A multi-cylinder hydraulic press having a control device controlling the distribution of liquid to the various cylinders in such a manner as to automatically maintain the fixed and moving platen in parallel relationship, comprises cylinder groups C1 C2, C3 C4, C5 C6, C7 C8 supplied separately with working liquid through a distributer B which is supplied from a control valve D. A movable platen S2 is moved towards a bed S1 on which rests the work and vertical racks 73, 74 fixed to the platen S2 engage pinions 75, 77 mounted on the bed S1 and which engage horizontal racks 79, 80 slidably mounted on the bed S1 and which engage a pinion 83 carried on a lever 85 connected through a bell-crank 87 and a rod 29 to a valve d1. Lack of parallelism of the platens S1, S2 results in unequal movement of the racks 73, 74 and 79, 80 and rotation of the pinion 83 controlling the valve d1 which supplies liquid to close the valves in the distributer B and so to cut off the supply of liquid to the group of cylinders causing the greatest depression. A similar arrangement of racks in a lateral direction control another valve which also supplies liquid to close the valves in the distributer B to control the platens in a lateral direction. Specification 510,939 is referred to.