baber/WOPTO huggingface dataset:
Patent GB-274709-A (GB)
Title: System and apparatus for radio communication
IPC: H03D7/00
Filed: 1926-01-25
Abstract: 274,709. Skala, L. W. Jan. 25, 1926. Frequency, changing.-In a wireless signalling system the high-frequency oscillations generated are applied to the radiator through a frequency changing device and at the receiver are changed in frequency by a similar frequency changing device. The Figure shows transmitting and receiving stations A and B respectively in which the frequency-changing devices consist of inductances L, L, and capacities C, C1 arranged in the form of a Wheatstone bridge The frequency derived from one diagonal of the bridge is stated to be a multiple of the frequency applied to the other diagonal predetermined by the relation of the inductive and capacitative reactances. Specification 259,328, [Class 40 (v), Wireless signalling &c.], is referred to.
Patent GB-428434-A (GB)
Title: Improvement in devices for the irradiation of milk with ultraviolet rays
IPC: A23C3/07
Filed: 1935-01-23
Abstract: Apparatus for irradiating milk comprises one or more inclined or vertical surfaces 5 down which the milk flows while being exposed to an ultra-violet lamp 16, a trough 9 at the upper edge of each surface, and a baffle 14 dipping into the liquid to retain air bubbles and foreign matter.  The baffle is preferably integral with the cover 11 of the trough.  The edge of the trough and the upper edge of the sheet <PICT:0428434/III/1> <PICT:0428434/III/2> are joined to form a sharp edge.  Several troughs and surfaces may be arranged around a single lamp as shown by way of example in Fig. 6.
Patent GB-991124-A (GB)
Title: Improved reforming catalyst
IPC: B01J21/04
Filed: 1962-01-22
Abstract: A process for preparing a Pt/Al2O3 catalyst comprises forming shaped particles of g -Al2O3, immersing the particles in water at a temperature between 35 DEG  C. and 90  DEG C. for a time sufficient to allow the water to percolate through the pore structure of the particles, separating water from the particles, calcining the particles, impregnating the particles with a compound of Pt, Pd, Rh, Rn, Os, or Ir, and thereafter calcining again.  Examples are given. Specifications 735,390, 787,755, U.S.A. Specifications 2,258,099, 2,274,634, 2,479,109 and 2,959,536 are referred to.
Patent GB-856687-A (GB)
Title: Improvements in rotary pumps
IPC: F04C2/344
Filed: 1958-01-24
Abstract: 856,687. Rotary pumps. HOBOURNEATON MANUFACTURING CO. Ltd. Jan. 24, 1958 [April 8, 1957], No. 2406/58. Class 110 (2). In a rotary pump of the roller or outwardlysliding vane-type having parallel sided slots or slots shaped as shown, the working chamber is defined by an intake arc B, D having a radius R1 progressively increasing over the portion B to C and then progressively decreasing over the portion C to D to a radius R3, a pumping arc D, E having a constant radius R3 and a discharge portion E, A progressively decreasing from the radius R3 to the radius R1. The pump is provided with inlet ports 30, 32 and discharge ports 34, 36, the port 32 being provided with an intake groove 84 and the port 36 being provided with a discharge groove 90 and a discharge extension channel 96. A groove 82 is also disposed in the surface of the working chamber whereby the provision of said groove, together with the extension 96 and the advanced position of a discharge port 37 relative to the discharge port 34 all cooperate to permit a gradual movement of the pumping elements from the trailing walls of the rotor slots to the leading walls thereof, thereby reducing noise. Specification 719,359 is referred to.
Patent GB-546252-A (GB)
Title: A new or improved reducing valve for use with fluids under pressure
IPC: G05D16/10
Filed: 1941-02-22
Abstract: 546,252. Reducing-valves. BENDIX, Ltd., and IRVING, J. S. Feb. 22, 1941, No. 2432. [Class 135] A reducing valve, particularly adapted for use in aircraft hydraulic systems, is actuated by a spring-loaded packed piston 29 subject to outlet pressure coupled to a lift valve member provided with an enlarged extension 23 of the valve spindle 28 working through a fixed seal 24 supported by a detachable cap 25 to prevent the inlet pressure acting on an area of the back of the valve equal to that enclosed within the outer periphery of the valve seat. The valve member has a facing washer held in place by a screwed flanged ring 26 secured by a split pin 27 and by a flange on a tube 33 surrounding the valve spindle and bearing on a washer supported by the piston which is secured to the valve spindle by a cap nut 31. The tension of the spring 35 is adjusted by inserting shims in a detachable cap 36. The inlet is fitted with a removable filter 12 housed in a detachable part 11 of the casing. A spring- loaded relief valve may be fitted on the outlet side of the valve. In a modification two valves one set to work at a higher pressure than the other, are arranged in tandem in a single casing.
Patent GB-785810-A (GB)
Title: Improvements in or relating to convertor bottoms
IPC: C21C5/48
Filed: 1956-01-25
Abstract: 785.810. Converter bottoms. A.R.B.E.D. ACIERIES REUNIES DE BURBACHEICH-DUDELANGE SOC. ANON. Jan. 25, 1956 [Feb. 5. 1955], No. 2480/56. Class 72 A. converter bottom having tuyeres is adapted to varying operating conditions by hermetically plugging the lower ends of the tuyeres selectively in such manner that the plug may be easily withdrawn. The bottom may have more' tuyeres than necessary for normal operation, the excess tuyeres being plugged, and as wear takes place the old tuyeres may be plugged and those originally plugged brought into operation. A rod F<SP>1</SP>, Fig. 2, of refractory or non-refractory material e.g. metal, carbon- or wood. may be inserted into the tuyere D<SP>1</SP> before sealing with plug E, or the tuyere D<SP>2</SP> may be filled with a paste F<SP>2</SP> of organic material, e.g. papier mache, with or without refractory materials. The plug E may be made of metal, refractory or plastic material screwed or crimped into the base plate A, into the rod F<SP>1</SP>, or into a metal tube lining the tuyere, with or without the use of an intermediate packing H of lead, asbestos, or plastic. Alternatively, the plug may be made of self-hardening or heat-hardening plastic to which has been applied a lacquer or metallic covering. Fig. 4 shows three tuyeres D closed by a single plug E.
Patent GB-100608-A (GB)
Title: Improvements in Pocktes Wallets.
Inventor: BUTLER JOSEPH
IPC: A45C1/06
Filed: 1916-02-19
Abstract: 100,608. Butler, J. Feb. 19, 1916. Wallets.-A wallet consisting of a number of pockets is arranged to be folded first in one direction and then crossways or at right-angles to the first fold, so as finally to occupy the space of one pocket only. The device shown in Figs. 1 and 2 is folded first along the line 1-1, and then along the lines 2-2, 2-2, 3-3. The pockets are preferably disposed so that their mouths face each other when the wallet is open.
Patent GB-958704-A (GB)
Title: Improvements in or relating to spindles for use in spinning frames and twisters
IPC: D01H7/08
Filed: 1962-01-23
Abstract: 958,704. Spinning spindles. A. TERPAK. Jan.23, 1962 [June 15,1961], No. 2503/62. Heading D1D. A spindle for supporting and rotating a yarn carrier T comprises a central metal core 20 with a cylindrical barrel 22 of plastics material moulded thereon, the barrel having a driving whorl 30 formed at its lower end. The barrel has an enlarged portion 24 to loosely centre the yarn carrier T while driving engagement between spindle and carrier is effected at the upper end of the carrier. The portion 24 may alternatively take the form of a cone. To lessen wear a metal insert 36 is provided in the barrel and metal caps 44, 46 are provided on the yarn carrier. The spindle may also be provided with an oil tube 14 and holding down means 15.
Patent GB-174636-A (GB)
Title: Improvements in radio receiving systems
IPC: H04B1/18
Filed: 1922-01-27
Abstract: 174,636. Ges. f³r Drahtlose Telegraphie. Jan. 31, 1921, [Convention date]. Atmospherics and undesired signals, eliminating or limiting.-A receiving system is provided with a rejector circuit which includes an inductance of small size wound with fine wire and is coupled to a valve amplifier to reduce the damping. The inductance may be shielded from the effect of stray oscillations by a metal box. The rejector circuit is particularly adapted for blocking long waves.
Patent GB-194268-A (GB)
Title: Improvements in power plants comprising a gas engine, and a turbine
IPC: F02B37/00
Filed: 1923-01-29
Abstract: 194,268. Curtis, C. G. Feb. 28, 1922, [Convention date]. Motor power plant.-The exhaust valve 27 of an internal-combustion engine opens early on the compression stroke, so that the exhaust is at high pressure and compressed air is admitted through the valve at the cylinder head at this end of the expansion stroke, and during a part of the return stroke of the piston so that exhaust takes place to about half way on the compression stroke. The exhaust is used to drive a turbocompressor 25, 15, which supplies the compressed air. The invention may be applied to engines with two pistons acted on by a single impulse.
Patent GB-876804-A (GB)
Title: Improvements in and relating to the storage of objects
IPC: E04H6/12
Filed: 1960-01-25
Abstract: 876,804. Mechanical garages and other storage systems. PETIT. S. Jan. 25, 1960 [Jan. 27, 1959], No. 2654/60. Class 78 (4). A mechanical garage, hangar, or other storage system, comprises a helical ramp 8 which can be rotated with a screw-like motion about a fixed tower 4 to bring different points on its external periphery opposite an access platform 13. In the form illustrated the ramp is supported by tracks 14 on the tower and by further tracks (not shown) near its outer periphery, and is driven by pinions 11 engaging circular racks 10. A lift shaft is mounted within the tower 4 and stairs 7 give access to a roof 5 which may include a restaurant or a helicopter station. The structure may be sited in a pit, as illustrated, and the ramp may be arranged to retract completely into the pit to provide protection, e.g. for aircraft stored.
Patent GB-774388-A (GB)
Title: Improvements in or relating to semi-conducting amplifiers
Inventor: CRESSELL IAN GEORGE ARCHIE
IPC: H01L21/288
Filed: 1954-01-28
Abstract: 774,388. Semi-conductor devices. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 21, 1954 (Jan. 28, 1954], No. 2665/54. Class 37. A method of manufacturing junction transistors comprises (i) forming a semi-conductor body with a grown junction between P and N type materials; (ii) electrolytically etching said body to produce by differential etching a visible step where the junction is situated; and (iii) providing at least one emitter junction on at least one side of the grown junction at a predetermined distance therefrom. " Emitter junction " is defined as one in which a bulk alloying impurity is positioned on a single crystal semi-conductor and heat is applied to produce a fused alloy type of junction. The grown junction may be formed by crystal pulling or zone melting. In one embodiment for producing an NPN transistor (Figs. 1-4) a semiconductor PN bar (Fig. 1) is electrolytically etched to produce a step or shoulder 2 (Fig. 2) at the grown junction 1. The P type material is then partly removed and a recess or well 3 (Fig. 3) is formed by ultrasonic drilling in the remaining P type material. A pellet 5 of antimony is placed in the well 3 and heated to 550‹ C. for about 10 minutes to diffuse into or alloy with the P type material and form the required N type alloy or emitter junction. The antimony pellet 5 together with the emitter and base connection is encased in silicone resin 8 and finally the whole device (with the collector connection soldered on at 9) is impregnated with silicone resin. In the electrolytic etching process to produce the step 2 the bath may be KOH or H 2 0 2  and the current passed through the PN bar causes removal of material from the P and N portions at substantially different rates and accordingly the visible step 2 (shown exaggerated) is produced in the plane of the junction 1. The emitter and base connections 6 comprise gold wires soldered to the antimony pellet 5 and to a flat connector 7 on the ground face 4 and encircling the well 3. Chemical and electrolytic etching may be employed to clean the semi-conductor at various stages in the process. If desired a second emitter junction may be provided on the other side of the grown junction 1 to produce a double or cascade transistor. PNP transistors may be manufactured, Figs. 5 to 7 (not shown), using the same basic process as illustrated in Figs. 1 to 4 and in this case indium to form the emitter junction.
Patent GB-414090-A (GB)
Title: Improvements in and relating to means for driving the turntables of talking machines
IPC: G11B19/265
Filed: 1933-01-27
Abstract: 414,090. Variable - speed epicyclic gearing. ELECTRIC & MUSICAL INDUSTRIES, Ltd., Blyth Road, Hayes, Middlesex. Jan. 27, 1933, Nos. 2696, 2697, and 2699. Convention dates, Jan. 27, 1932, Feb. 13, 1933, and Aug. 30, 1932. [Class 80 (ii).] Relates to gearing of the ball- or rollerbearing type, in which the gear may rotate solid, or the outer race be held stationary to give a reduced drive from the planetary cage. In the construction shown in Fig. 5, a gramophone turntable 11 is mounted on the planet carrier 22, 23, 24. A sleeve 12, carrying the sun-race 20<a> has two unequal slots 14 to engage a pin on the driving shaft. The outer race 21a is secured to a ring 21. When the driving pin engages the shorter slot 14, the ring 21 is raised clear of the motor-board and the gear rotates solid. When the longer slot 14 is placed over the pin the ring 21 rests on the motor-board, and is restrained by friction therewith so that the carrier is driven at reduced speed. The ring 21 may be notched at its periphery, to engage with a retaining pin on the motorboard. Rollers may be used instead of balls. Fig. 8 shows a modification which is an improvement on the apparatus described in Specification 386,135, [Group XXXVIII]. In this device, the outer race 47 has a depending detent 48 which can be locked, when the turntable is to be driven at a slow speed, by engagement with a member 50 on a lever 49. The part 50 may engage at the same time with a slot 52 in a member 51 extending from the motor-board. The lever 49 also actuates a collar 53, slidable on the motor spindle 46, the collar carrying a pin 56 by means of which the inner and outer ball races 45, 47 are locked together when the lever 49 has been depressed to separate the parts 50, 48. The detent 48 may be in the form of a toothed ring. In the construction shown in Fig. 9, the turntable 113 has a hub 114 loosely mounted on a motor-driven spindle 108 and carrying the planet carrier 118. A disc 116 having a number of V-notches in its periphery, is also attached to the hub, and is adapted to be engaged by a spring-pressed catch 138, pivotally mounted on a collar 132 surrounding the outer race 129. In the position shown the catch, engaging in one of the notches in the disc 116, connects the race 129 and the turntable, so that the gear rotates solid. When the bar 145 is pushed in, a cam edge at its inner end causes the catch 138 to move into the position shown in dotted lines, where it is retained in a notch in the end of the bar 145, and holds the raceway 129 stationary giving the reduced speed. The size and shape of the notches in the disc 116 are such that the rapid drive of the turntable is only taken up gradually by the catch 138 when the bar 145 is moved from the inner to the outer position. The Specification, as open to inspection under Sect. 91, describes also a further construction which forms the subject-matter of Specification 414,091. This subject-matter does not appear in the Specification as accepted.
Patent GB-749145-A (GB)
Title: Window actuating mechanism
Inventor: MATTHEWS ALBERT GEORGE
IPC: E05F11/34
Filed: 1954-01-29
Abstract: 749,145. Window operating mechanism. HOPE & SONS, Ltd., H. Jan. 27, 1955 [Jan. 29,1954], No. 2715/54. Class 20(3). Mechanism for simultaneously actuating a number of pivoted window frames a comprises an outer tubular member b and a tube, chain, or cable, or as shown, a rod c contained within it, pairs of similar links f, g connected respectively at their one ends to lugs h, i on the outer and inner members b, c and at their other ends to the lower edge of the associated window, and means for imparting simultaneous opposite longitudinal movements to the members b, c to impart the required movement to the window frames a. The lugs i project through a longitudinal slot in the member b. At each end the inner and outer members are attached to a chain d passing round support sprockets e one of which may be actuated manually, or by power. When the mechanism is required to actuate two, or more, pairs of windows, the outer member is preferably made from a pair of co-axial tubes b, Fig. 4, secured at their adjacent ends to the opposite ends of a hollow screw threaded spindle k, which is embraced by a rotary nut m supported in a stationary housing n having tubular extensions q and rotatable by a gear wheel o which is driven through gearing by hand or by an electric motor f. The mechanism may be used for actuating pivotally mounted casement frames or slidable frames. It may also be used to actuate a single frame.
Patent GB-1248505-A (GB)
Title: Production of a wort concentrate or powder with the aid of enzyme preparations
IPC: C12G/
Filed: 1969-01-17
Abstract: 1,248,505. Producing wort concentrate or powder. CHEMISCHE FABRIEK NAARDEN N.V. Jan.17, 1969 [Jan. 19, 1968], No.2768/69. Heading C6E. A process for the manufacture of a brewers' wort in a concentrated or dried form comprises the steps of: (a) mixing a finely-divided starchcontaining material (barley, corn, rye, wheat, buckwheat or rice) with water at a temperature of from 30 to 50‹C. to form a mash having a solids content of from 25 to 50% by weight, (b) adding cellulose, hemicellulase, protease and α-amylase (optionally, pectinase also) to the mash and, if necessary, adjusting the pH of the mash to between 4 and 7, (c) raising the temperature of the mash to from 50 to 60‹C. so as to degrade and dissolve the cellulose, hemicellulose and proteins in the mash, (d) further raising the temperature of the mash to from 86 to 88‹C. so as to liquefy the starch constituents of the mash, (e) cooling the mash to from 55 to 62‹C., adding a saccharifying enzyme (malt flour, malt extract, fungal amylase or amyloglucosidase) and saccharifying the starch until the ratio of fermentable sugars to non-fermentable polysaccharides in the mash reaches a proportion suitable for the brewers' wort, (f) raising the temperature of the mash to from 85 to 115‹C. so as to inactivate the saccharifying enzymes, (g) filtering the mash, and (h) concentrating or drying the filtrate, after addition of hop extract (if desired).
Patent GB-840625-A (GB)
Title: A vehicle having two steerable wheels
IPC: B62D11/24
Filed: 1957-01-25
Abstract: 840,625. Vehicle power steering; motor forecarriages. VAN DER LELY C. Jan. 25, 1957 [Jan. 27, 1956], No. 2798/57. Classes 79(3) and 79(5). A vehicle has two steerable wheels which are arranged one behind the other at one end of the vehicle and are turnable for steering purposes about a common pivotal axis, at least one of the wheels being in contact with the ground when the vehicle is in use. In Figs. 2, 3 the front wheels 6, 7 of a tractor are mounted on axles 13, 14 rigidly connected by a bar 15 which is secured to the lower end of a rod 18 formed with a substantially right-angled bend. The rod 18 is rotatably mounted in a sleeve 20 the centre line 21 of which constitutes the pivot axis for the wheels 6, 7. The line 21 is inclined at about 25 degrees to the vertical. Steering may be effected by means of an oil pressure cylinder 27 having a piston rod 28 pivoted at 29 to the bar 15. Oil under pressure is supplied to the cylinder 27 through ducts 30, 31 under the control of a device (not shown) operated by a steering wheel 11. The sleeve 20 is mounted on a disc 22 which is rotatable about a vertical axis 23 by means of an auxiliary motor (not shown) connected to the disc 22 through a worm drive. The disc 22 and steering wheels 6, 7 can be turned through 180 degrees for driving the tractor in reverse, thereby shortening the effective wheel-base length of the tractor. Fig. 4 shows a motor car having two steerable rear wheels 51, 52 at least one of which is driven by an I.C. engine 48. The wheels 51, 52 are carried by frame members 49, 50 respectively, the member 49 being carried by a rod 45 which is mounted for rotation in a sleeve 43 carried by the chassis frame 41. The pivot axis 44 of the rod 45 intersects the ground forwardly of the point of contact of the wheel 52. The wheel 52 and frame member 50 may be detached at 53 and 54. The front wheels 42 of the vehicle are undriven and unsteerable.
Patent GB-1490396-A (GB)
Title: Contact apparatus for interaction of air and water
IPC: B01D47/06
Filed: 1975-01-22
Abstract: 1490396 Gas/liquid contact apparatus CARL MUNTERS AB 22 Jan 1975 [22 Feb 1974] 2809/75 Heading B1R [Also in Division F4]  In contact apparatus (such as a cooling tower, air humidifier, or for the removal of impurities from air or water) comprising a casing 10 wherein units 26, Fig.1 of packing material made of vertically positioned corrugated sheets 27 provide passages in which upwardly flowing air and downwardly flowing water are brought into contact, a plurality of the packing units 26 are arranged side-by-side as a bed which slopes downwardly towards the centre of the casing from the air inlet thereof. Air flow through the casing is induced by a fan 18 and the water is sprayed from above the bed by spreaders 46. In each packing unit all the sheets may be corrugated with the corrugations of adjacent sheets crossing at angle of 20-40 to the vertical. Or the assembly may comprise alternating plane and corrugated sheets. The sheets may be of plastics material or of an inorganic fibrous material such as asbestos or paper, preferred dimensions being given in the specification. For manufacturing convenience, packing units are made up as rectangular blocks such as shown in Fig. 2 the blocks then being cut at an angle along the line 40 providing portions 36, 38 which are then assembled to provide the sloped-surface bed as shown in Fig. 1. Fig. 6 shows a cooling tower arrangemer said to need a reduced quantity of coolin air, wherein the packing material beds 62, 64, 66 operate in parallel both for water and air flow therethrough.
Patent GB-1528951-A (GB)
Title: Development of photographic silver halide material
IPC: C07C323/12
Filed: 1975-01-22
Abstract: 1528951 Polyether derivatives AGFA GEVAERT 12 Jan 1976 [22 Jan 1975] 2866/75 Heading C2C [Also in Divisions G2 and C3] Compounds of the formula wherein R 1  is hydrogen, C 1-5  alkyl or the group X-A-Y-R 2 , n is an integer of value at least 4, or if R 1  is X-A-Y-R 2  and X is a monovalent chemical bond, is at least 2, X is CO, SO 2 , CONH or when R 1  is X-A-Y-R 2 , may be a monovalent chemical bond, A is alkylene, substituted alkylene or arylene, Y is sulphur or selenium atom and R 2  is alkyl or substituted alkyl are prepared for use as additives to photographic developers. In examples, polyethylene glycol derivatives are obtained by reacting (1) polyethylene glycol (MW 200) and p-methylselenobenzoyl chloride; (2) polyethylene glycol (MW 200) and p-methylthiobenzoyl chloride; and (3) the bis-toluene sulphonic acid ester of polyethylene glycol (MW 200) and mercaptoethanol.