baber/WOPTO huggingface dataset:
Patent GB-513715-A (GB)
Title: Improvements in electric discharge lamps
IPC: H01J61/10
Filed: 1938-05-12
Abstract: 513,715. Discharge lamps. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand-Ges. fur Electrische Gluhlampen). May 12, 1938, No. 14190. [Class 39 (i)] In an electric discharge lamp wherein partitions subdividing the envelope fit it so closely that the discharge cannot pass round their edges and so force the discharge to take a path much longer than the straight line joining the electrodes, the partitions are made wholly or partly of metal coated with an insulating material. In one form, Fig. 1, the discharge is made to pass to and fro along the cylindrical envelope 1 by longitudinal radial partitions 2 carried on a coaxial tube 4. The sectors are closed at each end by discs 7 and the partitions are pierced by holes 12 alternately at the top and bottom to allow the discharge to pass from one sector to the next. The discharge from the electrode 6 enters a space within the partition structure through a hole 8 in the end disc 7. Within the tube 4, a stabilizing impedance 5 is connected between electrode 6 and its external lead. In another form, Fig. 3, the cylindrical envelope 1 is subdivided by two interlacing helices carried on the coaxial tube 4, so that the discharge follows the path between electrodes 13 and 14 indicated by the arrows. The partitions are preferably highly reflecting and may be of iron coated with a suspension of zirconia sintered on, or they may be of aluminium electrolytically oxidized. They may act as auxiliary electrodes and they and the electrodes may be made apart from the envelope and then slipped into it. The insulating coating may be of luminescent material and the envelope may be similarly coated. Specification 407,563, [Group XVIII], is referred to.
Patent GB-778334-A (GB)
Title: Improvements in stereospecific chlorination of í¸5-steroids
IPC: C07J75/00
Filed: 1955-05-17
Abstract: The invention comprises 5a ,6b  - dichloro - 16, 17 - epoxyallopregnan - 3b  - ol - 20 - one; 5a ,6b  - dichloro - 16 - allopregnen - 3b  - ol - 20-one, 5a ,6b  - dichloro - allopregnane - 3b ,17a -diol-20-one and 3-esters thereof with a hydrocarbon carboxylic acid, particularly the acetates, together with a process for the preparation of trans - 5,6 - dichloro - steroids by chlorinating a D 5-steroid in an inert solvent containing a tertiary amine, said D 5-steroid preferably having any free hydroxy substituents acylated prior to the chlorination.  Specified bases are pyridine, picolines, lutidines, dimethylaniline and triethylamine; specified solvents are chloroform, carbon tetrachloride, diethyl ether and pyridine, and the reaction is preferably carried out between - 30 DEG  and 10 DEG  C., especially at 0 DEG  C.  Free hydroxy groups in the D 5-steroid starting material are normally protected by esterification, suitable acyl groups (which may be subsequently removed by hydrolysis) being acetyl, benzoyl, naphthoyl, hemi-succinyl and picolinyl.  In examples: (1) 16,17-epoxy - 5 - pregnen - 3b  - ol - 20 - one acetate in methylene chloride containing pyridine is cooled to 0 DEG C. and a solution of chlorine in carbon tetrachloride added dropwise, the mixture stirred and, after washing with dilute HCl, steam-distilled, leaving 16, 17-epoxy-5a ,6b -dichloro - allopregnan - 3b  - ol - 20 - one acetate, which is hydrolysed with alcoholic KOH to the free 3b -ol compound; dehalogenation of the acetate, followed by hydrogenation using Pd/CaCO3 yields the starting material; (2) D 5 - pregnene - 3b ,17a  - diol - 20 - one 3 - acetate is chlorinated as in (1), yielding 5a ,6b -dichloro - allopregnane - 3b ,17a  - diol - 20 - one 3-acetate, w which is hydrolysed to the free diol; (3) and (4) 5,16-pregnadien-3b -ol-20-one acetate and cholesteryl benzoate similarly give the corresponding 5a ,6b -dichloro-derivatives; (5) diosgenin acetate in chloroform containing pyridine is treated with chlorine in chloroform at - 20 DEG C., the solution washed, filtered and evaporated, and the residue fractionally crystallized from methanol-ethyl acetate to give trans-5,6-dichlorodiosgenin acetate.
Patent GB-354371-A (GB)
Title: Improvements in or relating to the treatment of yeast and the manufacture of medicinal products therefrom
IPC: C12N13/00
Filed: 1930-05-08
Abstract: A medicinal preparation is made by irradiating yeast powder (preferably dried brewers' yeast) with ultra-violet rays and mixing the product with material containing calcium and phosphorus in assimilable form, e.g. calcium phosphate or calcium glycerophosphate. The yeast is treated in layers of the order of 0,1 inch in thickness and the rays used are emitted from a mercury vapour lamp, e.g. a standard Hanovia D.C. burner or similar apparatus, placed at a distance of about 12 inches from the material to be irradiated.  The source of ultra-violet rays may be provided with suitable reflectors. The product contains vitamins B1, B2 and D.  The yeast may be mixed with the dried powder from full cream milk before irradiation or the yeast and dried powder may be irradiated separately and then mixed, one method being to pass the substance to be irradiated on a travelling band beneath the lamp.  Examples are given of the treatment of dried milk and yeast together and separately, the product being mixed with malted wheat, calcium glycerophosphate and a little sodium bicarbonate to produce a tonic food. Medicinal tablets are made by irradiating yeast and mixing with calcium glycerophosphate gum and milk sugar.  A conditioning powder for horses is made from irradiated yeast and calcium phosphate.  Similar conditioning powders may be prepared for pigs and poultry.
Patent GB-770800-A (GB)
Title: Hack saw
IPC: B23D57/00
Filed: 1955-05-17
Abstract: 770,800. Saws; sawing. CUCUMO, M. May 17, 1955 [Feb. 23, 1955], No. 14254/55. Classes 61 and 145  A hand or machine operated hack saw comprises a blade 9 having a longitudinal groove on its external edge 11 within which a serrated sawing wire 10 is ten- - sioned, the wire having a transversal dimension slightly larger than the thickness of the blade. As shown the wire 10 comprises a core 18 on which is helically wound a wire 19 having a cutting edge. The blade carries terminal blocks 12, 15 between which the wire is tensioned . by winged dowels carrying winged nuts 17. One end of the core 18 is anchored and wound: up on to: the winged dowel thereby tightening the windings of the wire 19 thereon. The edge of the blade 9 is slightly convex in the plane of the blade. In a modification, Fig. 3 (not shown), the wire is anchored to winged dowels carried by the bow 1 of the saw. The edge of the blade may be serrated in register with the profile of the wire 10. The sawing wire may be formed by a wire having a helical cutting rib or by a wire core having a plurality of washers having sharp cutting edges threaded thereon.
Patent GB-1530107-A (GB)
Title: Serial data receiving apparatus
IPC: H04L7/033
Filed: 1977-04-05
Abstract: 1530107 Record/replay signal handling NCR CORP 5 April 1977 [29 April 1976] 14313/77 Heading G4C Circuit 2 detects in a signal, e.g. read from a magnetic disc store, a preamble of a predetermined number of clock pulses only and enables a decoding circuit 4 to decode data represented in the signal by the presence and absence of midcell pulses between regular clock pulses. Each data item is preceded by a preamble. A counter 12 receives the signal and is incremented by each pulse. Flip-flop 22 is initially reset to enable gate 14 which feeds a monostable 24 with a period greater than half, e.g. 3/4, of a clock period. If a pulse occurs during the monostable period, indicating that the signal contains pulses other than clock pulses and is therefore not a preamble, counter 12 is reset via gate 16. Counter 12 overflows C to indicate detection of a correct preamble and sets flip-flop 22. Flipflop 22 enables, via line 5, a decoding circuit 4. Counter 12 and flip-flop 22 are reset at the end of a data item by a signal on line 31 through gate 30. The clock pulses of the preamble pass via gate 20 to a phase-locked loop circuit 6 which becomes synchronized during the preamble. The clock signal produced by circuit 6 controls gates 18, 20 to pass data pulses via delay 7 to a clocked flip-flop 8 which may be the first stage of a shift register, and clock pulses to the phase-locked loop circuit. The flip-flop 8 output K provides an NRZ decoded output.
Patent GB-553206-A (GB)
Title: Improvements relating to the periodic energisation of electric circuits
IPC: H02K33/12
Filed: 1941-11-06
Abstract: 553,206. Reciprocating motors. TRAVIS, G. F., ASHTON, H. T., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. Nov. 6, 1941, No. 14331. Addition to 548,124, [Group XVII]. [Class 35] [Also in Group XVII] Apparatus for making sheathed or encased cores of comminuted material as in the parent Specification has two solenoid coils 12, 13 cooperating with a magnetic part of a tamper 24 to vibrate it continuously, the coils being in series or shunt with rectifiers 31, 33 acting in opposite senses to energize the coils alternately in each cycle of an A.C, energizing current.
Patent GB-439632-A (GB)
Title: Manufacture of nitronaphthylamines
Filed: 1934-05-11
Abstract: a -Naphthylphthalimide, or a derivative substituted in the phthalic acid residue, is nitrated, and the phthalic acid residue is then removed by saponification.  8-Nitro-1-naphthylamine is the main product, and 5-nitro-1-naphthylamine is the principal by-product; a small proportion of 4-nitro-1-naphthylamine is also formed.  Suitable conditions of nitration and saponification are described in an example, which also gives details of the separation of the specified nitronaphthylamines; 8 - nitro - 1 - naphthylamine sulphate is first separated from the sulphates of the other nitronaphthylamines by taking advantage of its greater solubility in water; 5-nitro-1-naphthylamine is then separated from its mixture with 4-nitro-1-naphthylamine by virtue of the greater solubility in water of the hydrochloride of the 5-nitro compound.  The following substituted a -naphthylphthalimides are also specified as suitable starting materials: a  - naphthyl - 4 - chlorophthalimide a  - naphthyl - 3 : 4 - dichlorophthalimide, a  - naphthyl - 3 : 6 - dichlorophthalimide, a  - naphthyl - 3 - nitrophthalimide, and a  - naphthyl - 4 - nitrophthalimide.  The Specification refers, by way of comparison, to the nitration of certain acylated a  - naphthylamines, viz:--formyl-, acetyl-, benzoyl- and p-toluenesulphonyl-a -naphthylamines and a  - naphthylphthalamic acid; these compounds, after saponification of their nitration products, yield mixtures of 2-and 4-nitro-1-naphthylamines.  Naphthylphthalimides.--The naphthylphthalimides specified above are obtainable by heating the corresponding phthalic acid or its anhydride with a -naphthylamine in tetrachlorethane.
Patent GB-915444-A (GB)
Title: Improvements in the production of gas mixtures having a high content of olefines from gaseous or vaporous hydrocarbons
IPC: C10G9/24
Filed: 1961-04-20
Abstract: Olefinic gases, cyclic alkanes and acetylene are obtained by passing a gaseous or vaporous hydrocarbon through a zone containing an electrically heated element at 500 DEG -1500 DEG C. in the form of one or more grates arranged so as not to be parallel to the flow of hydrocarbon and cooling within 0.1 second.  The individual elements of each grate may be of rod, strip, wire or drop-shaped in cross-section with the wide edge uppermost and are preferably parallel to each other and disposed at any desired angle to the elements of other grates.  The walls of the reaction zone may be kept free of carbon by blowing an inert gas on to the wall.  The starting material may be propane, heptane or a naphtha and the products contain ethylene, acetylene, propylene, cyclopropane, hydrogen and methane.  Specification 792,604 is referred to.
Patent GB-208679-A (GB)
Title: Improvements in or relating to paving blocks and the like
IPC: E01C5/22
Filed: 1923-05-31
Abstract: 208,679. Case, G. O., and Novocretes, Ltd. May 31, 1923. Drawings to Specification. Compound blocks; paving-blocks.-Roadways, pavements, paving-blocks and the like are constructed with a layer of rubber superposed upon a layer of concrete, cement, or the like and attached by pins of small cross-sectional area formed integral with the rubber, the number and disposition of the pins being such that the areas of unperforated concrete lying between the pins are small. The combination of small pins and small areas between them prevents shearing of the pins and creeping of the rubber. The total cross-sectional area of the pins varies from three-eighths to five-eighths of the total area of the rubber layer, and the diameter of the pins from one-eighth of an inch to three-eighths of an inch. The paving- blocks are formed by laying the rubber in a mould and casting the concrete thereon.
Patent GB-324599-A (GB)
Title: Improvements in or relating to multiple-spindle automatic lathes
IPC: B23Q1/01
Filed: 1929-05-08
Abstract: 324,599. Berg, W. May 8, 1929. Lathes. - Multiple spindle automatic lathes have the framework so designed that the space below the tools is free from obstruction so that disposal of cuttings is facilitated. The headstock casting d at one end of the pan f is connected to a casting e, at the other end, that houses the feed-gear, by a bridge member g formed with guideways on which the tool head c is traversed.
Patent GB-1126422-A (GB)
Title: Apparatus for use in forming hollow articles
Inventor: GALE GEORGE MARTIN
IPC: B29C31/00
Filed: 1964-09-26
Abstract: 1,126,422. Moulding hollow articles. RUBBER & PLASTICS RESEARCH ASSOCIATION OF GREAT BRITAIN. 27 Sept., 1965 [26 Sept., 1964], No. 14387/68. Divided out of 1,126,421. Heading B5A. The subject-matter of this case is contained in the parent Specification, but the claims relate to a heated fluidized bed with means to allow the insertion of pipes for their heat treatment.
Patent GB-1173207-A (GB)
Title: Improvements in or relating to Anthraquinone Dyestuffs
Inventor: JOHNSON GRANNIS SAMUEL
IPC: C09B1/514
Filed: 1967-03-29
Abstract: 1,173,207. Aminoisophthalic acid esters. GAF CORP. 29 March, 1967 [31 March, 1966], No. 14393/67. Heading C2C. [Also in Division C4] Diesters of 3,5-dicarboxy aniline are prepared by reacting the diacid with an alcohol containing 1-4 carbon atoms.
Patent GB-567953-A (GB)
Title: Improvements in web feeding devices
IPC: D06C3/00
Filed: 1943-09-03
Abstract: 567,953. Feeding webs. TOOTAL BROADHURST LEE CO., Ltd., and NIELD, L. C. Sept. 3, 1943, No. 14417. [Class 100 (i)] A web 1 is fed to the pins 2 of a stentering- machine by pins 6 on a drum 4, the pins being slidably mounted in the drum and positively projected into feeding position by engagement with a fixed cam 9 and withdrawn to release the web by springs 8. The drum preferably has rows of bristles 10 on each side of the pins 6 to press the web on to the stenter pins 2. Specification 542,323 is referred to.
Patent GB-743927-A (GB)
Title: Process for the bleaching of wool
Inventor: MEYBECK JEAN
IPC: D06L4/30
Filed: 1953-05-22
Abstract: A process of bleaching wool comprises treating the material, which may be in the form of fabrics, loose yarns or combed fibres, in a cold acid aqueous solution of a chlorite of an alkali metal at a pH between 2 and 4.5 until the wool turns pink, and thereafter in a solution of a reducing agent.  The chlorite may be sodium chlorite and the reducing agent may be sodium bisulphite, sodium hydrosulphite, or a mixture thereof, or sodium hyposulphite.  The chlorite solution may be activated with hydroquinone, sodium bifluoride, sodium hydrosulphite, or ammonium sulphocyanide and may also contain a wetting agent, e.g. a sulphonated oxyethylamide of a fatty acid.  The reducing solution may include a proteolytic enzyme, e.g. papain or trypsin, a wetting agent or sodium bicarbonate.  The shrink-resistance of the wool may be improved by an after treatment with a solution of sodium hypochlorite containing hydrochloric acid. The pH of the chlorite solution may be adjusted with phosphoric acid or a mixture of acetic acid and sodium acetate.
Patent GB-444279-A (GB)
Title: Improvements in and relating to windows for vehicles
IPC: B60J1/14
Filed: 1935-05-17
Abstract: 444,279. Vehicle windows. ROETHEL, J. H., 269, Marlborough Avenue, Detroit, Michigan, U.S.A. May 17, 1935, No. 14490. Convention date, Dec. 31, 1934. [Class 20 (iii)] A rear side window for a stream-lined vehicle is opened along a rearwardly inclined line so that the upper edge of the glass panel 14 remains substantially parallel to the roof line 15. The glass panel is held in a channel member 27 carried by a plate attached by screws 32 to the flange of a plate 29 having slots 30, 31 to receive fixed guide pins 25, 26 mounted on a plate 20 secured by screws 21 to the vehicle body. The plate 29 has teeth 40 on a curved line at its forward edge, these teeth meshing with a pinion 22 on the spindle of the actuating crank. Spring-pressed washers on the guide pins 25, 26 hold the plates 29, 20 in slidable engagement and anti-rattle washers may be provided. Specification 443,623 is referred to.
Patent GB-593602-A (GB)
Title: Improvements in the manufacture and construction of mould boxes
IPC: B22C21/00
Filed: 1945-07-08
Abstract: 593,602. Casting composite articles ; flasks. STONE & CO., Ltd., J., and LANCASTER, B. H. June 8,1945, No. 14497. [Class 83 (i)] A mould box with dowel lugs and handle brackets is cast from light alloy and provided with handles of a different metal. The flask a, Fig. 5, may have a section with or without reinforcing ribs r, Fig. 4, with one or two inturned lips or as shown in Fig. 6, and tubular handles d, preferably perforated, of steel, are placed in the mould before pouring in the magnesium alloy. The dowel lugs b have a large elongated hole and dovetail recesses b<2> so that a steel bush f, Fig. 10, may be secured in each by placing the flask on a pattern plate h, sliding a bush f on each pin j and pouring in white metal &c. m. In a modification, the lugs are cast solid and then drilled.
Patent GB-948650-A (GB)
Title: Improvements relating to magnetic tape apparatus
IPC: G11B15/10
Filed: 1961-04-21
Abstract: 948,650. Feeding magnetic tape. L. BOLKOW, [trading as BOLKOWENTWICKLUNGEN KOMM.-GES]. April 21, 1961 [April 23, 1960], No. 14522/61. Heading. G5R. In a tape recorder wherein drive of spool carrying plates is effected by raising or lowering said plates out of or into engagement with a driving member under the control of pressbutton controlled levers, the said levers are carried by a pivoted arm normally in a position of rest but when moved to an operative position cause one control lever to disengage drive to one plate and the other control lever to engage drive to the other plate. In the inoperative condition of the machine, spool carrying plates 10, 11 rest on driving members 4, 3, respectively, of a drive shaft 6. During forward drive for recording or playback, the plate 11 is lifted from driving member 3 by lever 26 under the influence of press-button 32 or 33 respectively, according to whether recording or playback is being effected. During rewinding a lever 25 is moved by press-button 35 to lift the plate 10 from the driving member 4. During forward drive, however, a temporary reverse drive is effected by an electro-magnet 58 which tilts the pivoted arm 19 carrying levers 25,26 and therefore disengages drive to plate 10 and reestablishes drive to plate 11.
Patent GB-253710-A (GB)
Title: Improvements in steam engines
IPC: F01B17/04
Filed: 1925-06-04
Abstract: 253,710. Reid, W. June 4, 1925. Compound engines. - A uniflow, reciprocating, steam engine using highly superheated, high-pressure steam has a slight annular clearance between the piston and piston wall. The ends of the cylinder 1 are separated by a series of packing-rings 7 fitted in the cylinder walls between the exhaust valves 5 within which rings the piston works steam tight. The inner parts 8 of the cylinder bores near the exhaust valves are flared; the packing is exposed to steam at exhaust temperature and pressure. The inner end of the cylinder is provided with a sleeve 12 which enters between the piston-rod and piston and may contain packing engaging the piston. The length of the piston is equal to the stroke and breadth of the packing. The exhaust valves 5 open at 90 per cent for release and close at half-stroke for compression, the exhaust fluid passes to another cylinder to be used expansively. In the construction shown in Fig. 4, steam is first supplied to space 20 and exhausts to the space controlled by valve 21, it then passes to the top of cylinder 1<a>, and finally exhaust from the chamber controlled by valve 24.
Patent GB-1391694-A (GB)
Title: Optical image copying arrangement
IPC: G03B27/52
Filed: 1972-03-28
Abstract: 1391694 Photo-copying apparatus FUJI SHASHIN KOKI KK 28 March 1972 [31 March 1971] 14567/72 Heading G2A An optical image copying arrangement comprises a scanning light source 2, two movable mirrors 3, 4 both obliquely inclined to a plane on which an original 1 is stationarily supported, a fixed lens 5 and a fixed mirror 6 which reflects an image through a slit 7 past which photosensitive material 8 is moved. A reduced, magnified or same size image may be formed, and a book-form original may be copied. The ratios of the light and mirror speeds are such that the optical path length is kept constant, and mathematical formulae are derived for these ratios.