baber/WOPTO huggingface dataset:
Patent GB-788728-A (GB)
Title: Improvements relating to delay stages for electrical pulses
Inventor: SCARROTT GORDON GEORGE
IPC: H03K5/14
Filed: 1954-10-20
Abstract: 788,728 Pulse delay networks. FERRANTI, Ltd. Oct. 12, 1955 [Oct. 20, 1954], No. 30147/54. Class 40 (8). [Also in Group XL (c)] A delay stage for a series train of pulses comprises a four-arm balancedbridge network 10 having in one arm an array A of resonant circuits tuned to frequencies f, 3f, 5f, . . . (2n - 1)f and in an adjacent arm an array B of resonant circuits tuned to frequencies 0, 2f, 4f, . . . 2nf, the other two arms being constituted by resistors 11, 12. The ratio of the resistors 11, 12 is equal to the ratio of the characteristic impedances of the arrays A and B. The input train is applied across the diagonally-opposite common points 13, 14 of the arrays and the impedances and the output is taken across the two remaining points 20, 22. The arrays may consist of a series combination of parallel resonant circuits or a parallel combination of series resonant circuits, the zero-frequencies circuits consisting of a single capacitor. After amplification by a paraphase amplifier 15 the input is applied as current pulses in paraphase to the terminals 13, 14. It is stated that the effect of thus exciting the arrays A, B is to produce an output voltage pulse of width nf/4 after a delay 1/2f, the sense of this pulse being opposite to that of the input pulse in the case of array A but the same as that of the input pulse in the ease of array B. Since the input current pulses are of opposite sense to each other the output pulses will be of the same sense. The energy of the received pulses is absorbed in resistors 23, 24. Since the arrays are excited simultaneously the output pulses will occur simultaneously and will combine to produce a potential difference across terminals 20, 22. It can be shown that in the case of each array the response curve crosses the time axis at intervals of 1/4nf between each input pulse and the corresponding delayed pulse. Other input pulses may therefore be applied to the circuit at these intervals without mutual interference and the maximum number N of pulses which can be delayed simultaneously by the circuit at this density is 2n (by dividing the delay period 1/2f by the separation period of 1/4nf). The number of inductors in arrays A and B taken together thus amounts to one per pulse to be delayed. Given the value r of the repetition frequency we have r = 4nf. By substituting for 2n the number of pulses to be delayed the value of can be found. To supress undesired peaks in the pulse waveform it may be arranged that the capacitances in the arrays instead of being equal are increased in magnitude in the higher frequency circuits. It is, however, necessary to increase the number of resonant circuits from N to about 1.3 N if the same number of pulses are to be delayed. To achieve better pulse shapes at the expense of pulse amplitude the coils may be adjusted so that the Q of each is proportional to its operative frequency. The arrays A, B may alternatively be in the form of a parallel combination of series resonant circuits.
Patent GB-668077-A (GB)
Title: Improvements in or relating to boxes
IPC: A45D33/00
Filed: 1948-11-19
Abstract: 668,077. Boxes. ROBINSON, Ltd., E. S. & A., ROBINSON, P. N., and FORD J. H. Feb. 21, 1949 [Nov. 19, 1948], No. 30178/48. Class 18 A cardboard box for powder or the like comprises an integral top and side member 1 in which is secured a truncated conical base 3 having an opening closed by a snap plug 5. The base is formed from two or more plies moulded to shape. Specification 668,076 is referred to.
Patent GB-630318-A (GB)
Title: Improvements in frames for automobile road vehicles
IPC: B62D23/00
Filed: 1946-10-09
Abstract: 630,318. Road vehicles. JULIEN, M. F. A., and MOTTE, A. A. F. Oct. 9, 1946, No. 30183. Convention date, Oct. 18, 1945. Addition to 626,294. [Class 108 (i)] The sheet metal automobile chassis of the parent Specification is formed of at least three parts including the polyhedral (front) reinforcement structure together with the dashboard frame, the floor, and a rear transverse member, these units being assembled together with longitudinal sidemembers. The polyhedral structure comprises (Fig. 6) a panel 1 secured by flanges 3 to an upward extension 2 and a roof-shaped metal sheet 4 formed with flanges 5. The floor (Fig. 5) comprises a metal sheet formed with ribs 12, flanges 13, 14 and a central tunnel 16, through which the control means for the engine and brakes may pass. The floor is formed with notches 15 to pass the rear suspension springs, and with brackets 18 to which the forward suspension is secured. The rear transverse member (Fig. 7) comprises a metal sheet 24 which may form a seat back, together with bracing means 25, 29 and gussets 30, 31, the gussets 30 supporting the rear suspension at 34. Flanges 26 may bear the hinges for the doors. The units are secured together by welding along suitable flanges, as shown in Fig. 4, outer covering members 42 being welded to side-members 37 and to gussets 48 on the polyhedral structure. The body is completed by fixed wings, front and rear hinged hoods covering the compartments in front of and behind the polyhedral structure and the rear member respectively, doors, and a roof which may be foldable. The engine may be carried in the rear compartment, and the front suspension preferably comprises a pair of vertically-spaced leaf-springs secured centrally to means supported on the brackets 18.
Patent GB-303931-A (GB)
Title: Improvements in burners for use in oil fuel lamps for heating purposes
IPC: F23D3/00
Filed: 1927-09-13
Abstract: 303,931. Richardson, A. W. Sept. 13, 1927. Divided on 303,423. Wick burners, annular blue flame; burners, materials for.-An annular wick burner for heating and illuminating lamps comprises a steel inner tube 6 forming a primary air-supply passage and an outer tube 12 of glass, porcelain, or other poor heat-conducting material, the outer wick tube during normal burning projecting above the wick 14 and being of such a thickness as to form adjacent to the top of the wick a heated zone to vaporize the fuel. The tube 6 may be arranged within a sleeve 2 secured in the fuel chamber 1 and be adjustable vertically by turning a nut 7. The bottom of the tube is provided with air inlets and is surrounded by a correspondingly perforated sleeve 8 connected to it by a pin-and-slot connection 10, 11. The outer tube 12 is carried by a sleeve nut 13 screwing into the chamber 1. The burner may be used for heating the generator of a refrigerating apparatus, the flue 16 leading to the refrigerating apparatus being fitted with a sleeve 17 having a flared lower end. By rotating the sleeve 13 the gap between the tube 12 and sleeve 17 and consequently the secondary air supply to the top of the wick can be regulated. The sleeve 17 may alternatively be adjustable vertically in the flue 16. The flame does not burn actually in contact with the wick so that the wick is not charred. The wick may be adjusted vertically by means of a handle 15. In a modified form of lamp the outer tube 12 is outwardly flared and a flamespreader is provided. Suitable dimensions for the various parts are stated in the Specification and Specification 303,423 is referred to.
Patent GB-812255-A (GB)
Title: Derivatives of 2,2 [isopropylidenebis(p-phenyleneoxy)]-dialkanols
Filed: 1957-09-27
Abstract: Copolymers of a monomer of general formula <FORM:0812255/IV (a)/1> where R is hydrogen or an alkyl group of 1-4 carbon atoms, with e.g. vinyltoluene, vinyl acetate, 2 - methyl - 5 - vinyl - pyridine, methyl methacrylate, diallyl phthalate, triallyl cyanurate, N-vinylphthalimide, diallyl benzene phosphonate and styrene are described.  Examples are given of (1) the co-polymerization of the di (acid maleate) of 2,21-[isopropylidene bis-(p-phenylene oxy)] diethanol with 30-60 per cent styrene; (2) the copolymerization of the di-(acid maleate) or 2,21-[isopropylidene bis-(p-phenylene oxy] dipropanol with 20-90 per cent of styrene.  Both polymerizations take place in the presence of a paste of equal parts of benzoyl peroxide in tricresyl phosphate.  Details are given of the physical properties of these copolymers.  Specification 497,175, [Group IV], is referred to.ALSO:The invention comprises compounds of the general formula: <FORM:0812255/IV (b)/1> where R is hydrogen or an alkyl group of 1-4 carbon atoms.  the compounds are prepared by reacting substantially two mols. of maleic acid or anhydride, with one mol. of the corresponding dialkanol.  Examples are given of the preparation of the di-(acid maleate) of 2,21-[isopropylidene bis-(p-phenyleneoxy)] diethanol and the corresponding dipropanol.  Both of these compounds may be stabilized with 100 parts per million of p-tertiary butylcatechol.  Specification 497,175, [Group IV], is referred to.
Patent GB-741262-A (GB)
Title: Inflation process
IPC: B29C49/46
Filed: 1953-11-04
Abstract: An inflated article is produced without the use of pressure by impregnating a solid organic polymeric material with a volatile inert liquid until 2-36 per cent of the weight of the polymeric material has been absorbed, heating the impregnated material suddenly to volatilize the inert liquid at the surface of the polymeric material, so forming a skin thereof, continuing the heating until the inert liquid in the interior of the article vaporizes with formation of an inflated shell of the polymeric material, and then cooling the shell. Specified polymeric materials are polythene, ethylene-vinyl ester interpolymers, hydrolysed ethylene-vinyl acetate interpolymers, polyvinyl acetals, polyvinyl chlorideacetate, polyvinyl chloride, chloropolythene, polytetrafluoroethylene, tetrafluoroethylene - chlorotrifluoroethylene copolymers, polymethyl methacrylate, polystyrene, polyacrylonitrile, polyvinyl fluoride, ethylene-carbon monoxide interpolymers, polyformaldehyde, polychloroprene, polybutadiene, chlorosulphonated polythene, butadiene-acrylonitrile rubber, butadienestyrene, nylon-type polyamides, N-alkoxymethyl derivatives of nylon-type polyamides, polysilicones, polymeric alkylenediamine alkandioic amides, aminoplasts and phenol-formaldehyde resins.  Specified inert liquids are chlorinated solvents, benzene, toluene, xylene ethyl benzene, cyclohexane, methyl cyclopentane, methyl cyclohexane, water, methanol, ethanol, isobutanol, tertiary butanol, cyclohexanone, acetone, ethyl methyl ketone, amines including pyridine, alkyl amines, acetic acid, propionic acid and mixtures thereof.  Fillers, plasticizers, curing agents, e.g. 2-mercapto-imidazoline, and vulcanization aids may be added.  The shell is preferably formed by placing the impregnated polymeric material in an atmosphere having a temperature from about 5 DEG  C. above the boiling-point of the inert volatile liquid (which has a boiling-point within the range of 60 DEG  to 160 DEG  C.), to about 100 DEG  C. above the melting-point of the uncured polymer. Articles which may be produced by this method include toys, caps, ping-pong balls, balloons, tubes, pipes, piping layout systems, pipe-elbows, packaging units, displays boxes, protective shells, sausage casings, display signs and buoyancy aids.
Patent GB-760592-A (GB)
Title: Improvements in or relating to the drying and smoking of bacon
IPC: A23B4/052
Filed: 1953-11-04
Abstract: 760,592. Drying and smoking bacon. DANISH BACON CO., Ltd., HERBERT, F., and ARNETT, C. Sept. 14, 1954 [Nov. 4, 1953], No. 30460/53. Class 49 In drying and smoking sides or cuts of bacon, air of suitable temperature, e.g. 90‹F., and humidity is circulated over the bacon, and, at a later stage, ash-free smoke from a separated smoke producer is added at controlled temperature to the air stream. During the drying stage, part of the moist air may be exhausted to the atmosphere through a dampercontrolled aperture and replaced by fresh air, and during the smoking stage, part of the circulated smoke may be exhausted similarly and replaced by fresh smoke of controlled temperature. An installation for carrying out the method (Figs. 1, 2 and 3) comprises a chamber 1 above a chamber 2, passages 3, 3<SP>1</SP> between the chambers at opposite ends, a battery 8 of tubes heated by hot water for heating the air or air-smoke mixture in the upper chamber 1, axial flow fans 4, 4<SP>1</SP> in the upper chamber 1 for circulating the air or air-smoke mixture in the direction of the arrows, vertical splitters 29 in the upper chamber 1 for dividing the air or airsmoke stream into lanes of equal flow, aerofoils 31 and 31<SP>1</SP> at the ends for turning the air or air-smoke mixture into and from the lower chamber 2, and, at the air entrance of the lower chamber 2, vertical splitters 32 in alignment with the splitters 29. The sides or cuts of bacon 100 are hung, with cut surfaces towards the air or air-smoke stream, on racks 103 in the lower chamber 2. Smoke from a smoke producer 17 is introduced to the chamber 1 by way of ducts 16. Air or air-smoke mixture is exhausted by way of a chimney 13 having a damper 28 at its entrance. Fresh air enters the chamber 1 by way of adjustable louvre blades 23.
Patent GB-1121610-A (GB)
Title: Plant receptacle for hydroponics
IPC: A01G27/00
Filed: 1967-07-03
Abstract: 1,121,610. Hydroponics receptacle. G. BAUMANN. 3 July, 1967 [14 July, 1966], No. 30513/67. Heading A1E. A plant receptacle 1 for hydroponics has a container 2 of a water level gauge loosely inserted into it, the container extending up to the upper edge of the receptacle and having inside it a spherical float 10 carrying an indicator bar 11 so that after the cover 3 of the container has been removed the float can be removed while the container is still in position in the receptacle. The position of the indicator bar 11 in the guide tube which extends upwardly from the cover 3 can be seen in the sight tube 15. A channel 5 is provided for pouring in nutrient solution.
Patent GB-1197511-A (GB)
Title: A Mouldable Supporting Element for Reinforcing Synthetic Resin
Inventor: PAWLICKI HEINRICH ROBERT
IPC: D03D15/00
Filed: 1967-07-04
Abstract: 1,197,511. Woven fabric for reinforcing synthetic resin. H. R. PAWLICKI. 4 July, 1967, No. 30651/67. Heading D1K. A fabric which can be bent to shape and coated with synthetic resin is woven from metal rods 12 and glass fibre rovings 13, 17.
Patent GB-226029-A (GB)
Title: Improvements relating to mangling and wringing machines
IPC: D06F61/02
Filed: 1923-12-06
Abstract: 226,029. Whittaker Bros. (Accrington), Ltd., and Duckworth, J. A. Dec. 6, 1923. Mangles and wringers, driving-gear for. - Means for independently adjusting the tension on the chains of a double chain driven mangle or wringer, comprise the mounting of the fly-wheel spindle a<1>, which carries a pinion a, in a slot a<2> in the frame or bracket a<3>. The stubshaft D, carrying the sprocket. d<2> and pinion d' is mounted in a slot d at right angles to the slot a<2>. The slot d, which may be arcuate in form with the spindle a<1> as centre, is carried by the frame or by a bracket d'. The lower roller spindle c<1> is driven from the stub-shaft through the chain C and sprocket-wheel c.
Patent GB-1179416-A (GB)
Title: Full Wave Rectifier Assemblies
Inventor: STACEY MICHAEL ALBERT
IPC: H01L25/07
Filed: 1966-07-08
Abstract: 1,179,416. Semi-conductor rectifiers. JOSEPH LUCAS (INDUSTRIES) Ltd. 28 June, 1967 [8 July, 1966], No. 30719/66. Heading H1K. A three-phase full-wave bridge rectifier is mounted on a conductive bolt 21 studded at 23 to fit a hole in the casing of the supply alternator. Mounted on the bolt but insulated therefrom by a collar 26 are various metal plates. The D.C. terminal plates 13, 14 (plate 13 being conductively connected to the bolt) each bear three diodes protected by silicone rubber 37. Three arcuate phase plates 31, 32, 33 are mounted to one side of the terminal plates and though axially spaced are cranked so that their peripheral portions lie in a common plane. These peripheral portions contain plunged holes to receive the leads extending from the diodes parallel to the bolt. Plunging the holes facilitates assembly-the various plates, already carrying diodes where appropriate, are fed in sequence on to the bolt and jigged in their correct angular positions while the diode leads are flow soldered to the phase plates. As shown a further D.C. terminal plate 29 is placed between the main terminal plates and the phase plates-it bears a further three diodes which duplicate one half of the bridge to provide an auxiliary output.
Patent GB-1468668-A (GB)
Title: Determining dimensions of a rolled workpiece
IPC: G01B21/06
Filed: 1974-06-26
Abstract: 1468668 Measuring thickness of rolled strip BRITISH STEEL CORP 26 June 1974 [28 June 1973] 30731/73 Heading B3M [Also in Division G1] A method of determining the final thickness of a workpiece of known volume and width and of uniform rectangular cross-section being rolled between two work rolls 10, 11 a fixed distance apart involves (a) measuring the angular displacement of a roll 11 in the time taken for the workpiece to pass between the rolls; (b) measuring the angular displacement of the same roll during the pass in the time that a reference point on the workpiece passes from a first fixed point to a second fixed point a known distance apart measured in a line parallel to the line of advance of the workpiece; (c) multiplying the ratio of displacement in a : b by the known distance between the fixed points and (d) dividing the volume of the workpiece by the product of the length obtained in step (c) and the width to obtain the rolled workpiece thickness at the end of the pass. The signal from a load cell 23 associated with the upper roll produces a distinctive signal when a workpiece is passing the rolls which signal gates at 26 pulses from a shaft encoder 22 monitoring rotation of the lower roll to a counter 28. A further counter 38 counts the rotation of the shaft encoder whilst the workpiece passes between detectors 30, 31. The ratio of the counts in counters 28, 38 is multiplied by the tension distance between the detectors 30, 31 in calculator 39. The final thickness of the rolled strip determined in a calculating unit 20.
Patent GB-248509-A (GB)
Title: Improvements in a dispensing container and method of dispensing articles therefrom
IPC: A47F1/08
Filed: 1924-12-22
Abstract: 248,509. Rogers, F. H., (Vortex Mfg. Co.). Dec. 22, 1924. Contents, delivering. - A device for dispensing paper cups &c. singly comprises a container 1 within which the cups are arranged in a stack upon spring-controlled plates 14, 17<d> which retain the cups in position with the uppermost cup lodged beneath the flange 3 of the top 4 of the container. The cups are withdrawn by hand downwardly through an opening in the front wall 10, the plates 14, 17d being depressed against the resistance of the springs 19, 20<a>. Guide members 6 are secured to the side walls of the container 1 to facilitate the inser. tion of the cups and to receive flanges 17 on the sliding plate 14, and the rear sides 7 of the members 6 are serrated to engage the edges of the cups to prevent the delivery of more than one cup at a time. Similar serrations may also be provided in the rear wall of the container. The plate 14 is secured to the lower of two sliding plates or doors 11, 12 which interengage so that when the plate 14 is depressed on filling the container the plates 11, 12 are lowered telescopically to close the opening in the front wall 10. The container is provided with a hinged cover 2.
Patent GB-867246-A (GB)
Title: Carpet sweeper
Inventor: LIDDELL ROBERT EDWARD
IPC: A47L11/33
Filed: 1958-09-26
Abstract: 867,246. Carpet sweepers. BISSELL Inc. Sept. 26, 1958, No. 30795/58. Class 138(1). A carpet sweeper comprises dust pan bottom sections 2 and a rim-like border frame comprising side members 4 and end members 5 preferably formed integral with the bottom sections 2, Fig. 6. Bottom sections 2 have end walls 8, Figs. 2 and 3, provided with downwardly directed openings 10 to accommodate brush 11. A central top casing 12 is mounted on, and fixed to, the end walls 8 with its ends projecting beyond the end walls and terminating in depending portions 13. Doors 15, one on each side of top casing 12, are attached to arms 24 pivotally mounted on journals 25 between the walls 8 and the adjacent portions 13. Springs 30, Fig. 4, bias the doors 15 in both the open and the closed positions. In the closed position inwardly projecting side walls 17 and end walls 18 of the doors rest on the border frame 4, 5. A handle bail 26 is pivoted on the journals 25, the inner ends of which journals have downwardly projecting arms 28 coacting with springable keepers 29 to releasably hold the handle in an upright position. The brush is mounted on journals 36 carried by springable brackets 37 mounted on the end members 5 of the border frame. Floor wheels 38 are urged against the brush pulley 34 by springs 42.
Patent GB-534505-A (GB)
Title: Improved gas producer for use with internal combustion engines
IPC: C10J3/34
Filed: 1939-11-25
Abstract: 534,505. Gas producers. VAUXHALL MOTORS, Ltd., TAUB, A., FOSTER, D. B., PLATT, M.. and BIRABEN, H. E. Nov. 25, 1939, Nos. 30799/39 and 9110/40. [Class 55 (i)] Across-draught gas producer is provided with a cast iron water cooled firebox 1, the walls of which are downwardly convergent, changing in cross-section from circular at the top to rectangular at the bottom, a transversely reciprocating grate 12 being used to discharge the ash into the ash box. The air inlet 2 is water-cooled, and is flush with the inner wall of the fire-box, and the gas outlet is covered by a grille 7 which slopes outwardly, as shown, to produce a loose packing of the fuel, and reduce the resistance to gas flow. The edge of the grate below the air inlet is of arcuate form, and adjacent the edge is an arcuate slot 13, the grate being oscillated by a lever 1 and link 18. Ash removal takes place through the slot 13, and only at the side where the air inlet 2 is situated.
Patent GB-225389-A (GB)
Title: Improvements in or connected with fasteners for driving belts
IPC: F16G3/08
Filed: 1923-12-10
Abstract: 225,389. Reddaway, F. Dec. 13, 1923. Locking nuts.-A belt fastener plate a has an annular ridge round the bolt holes a<1> and one or more projections a<3>, which engage the arched under faces d<1> of the nuts d and lock the latter in position.
Patent GB-811286-A (GB)
Title: Reclining chairs employing movable back and leg rests
IPC: A47C1/034
Filed: 1957-10-03
Abstract: 811,286. Seats. GLASS, H. P. Oct. 3, 1957 [May 23, 1957], No. 31018/57 Class 52(2) In a reclining chair having a back and seat unit 15, 16 and a leg-rest 17 pivoted between fixed arm-rests 13 at 19, 22 respectively, flexible belts 18 or the like are attached to the back and leg-rest at 23, 24 respectively and are led over the armrests which are so shaped that the distance between point 23 and pivot 19 is greater than that between point 24 and pivot 22. Thus, for a given rearward swing of the back and seat unit, the leg-rest will be projected through a greater angle. The belts 18 may be concealed.
Patent GB-1354784-A (GB)
Title: Soil conditioning composition
IPC: C05B13/06
Filed: 1971-07-02
Abstract: 1354784 Soil conditioning composition EISAI CO Ltd and SEIKAKEN KK 2 July 1971 [3 July 1970 22 June 1971] 31025/71 Heading C1B A soil conditioning composition comprises a condensed phosphoric acid containing 73 to 86% of P 2 O 5  and optionally partially neutralized with a compound of an alkali metal or an alkaline earth metal, and a hydrophilic polymer selected from polyacrylamide, salts of polyacrylic acid and partially hydrolysed products of acrylamide. Other ingredients which may be present are salts of Fe, Cu, Zn, Mn, Mg, and Mo, citric acid, boric acid, fertilizers such as urea and pesticides. The composition gives soil a crumbly structure and also acts as fertilizer.