baber/WOPTO huggingface dataset:
Patent GB-482172-A (GB)
Title: Improvements in or relating to electrical insulating materials
IPC: H01B3/18
Filed: 1937-03-09
Abstract: <PICT:0482172/IV/1> In the production of flexible electrical insulating bodies consisting of polyvinyl compounds with molecularly uncombined air and gas bubbles finely distributed therein, the fluid or semifluid material permeated by air and gas bubbles is extruded under pressure in the form of strings, bands, &c. through extrusion nozzles, which widen outwardly whereby the bubbles expand and stretch the material, and the material is subjected to a mechanical stretching operation during the extrusion.  As shown, a doublewalled press cylinder 10 is filled with polystyrol in fluid condition and compressed air from a supply pipe 14 is forced into the cylinder through nozzles 13 opening from the jacket 12. Pressure is applied simultaneously by a plunger 15 to force the material, mixed with air, through a narrow extrusion conduit 16 which is widened out at 17. The portion 17 may be of such length that the material solidifies therein; solidification may be facilitated by cooling the outlet-end of the opening 17.  During extrusion the material is subjected to a mechanical stretching in the longitudinal direction.
Patent GB-1212396-A (GB)
Title: A high shear-strength fiber-reinforced composite body
Inventor: SHYNE JAMES J
IPC: C08K7/02
Filed: 1968-02-13
Abstract: 1,212,396. Reinforced ceramics. GENERAL TECHNOLOGIES CORP. 13 Feb., 1968, No. 7008/68. Heading C1J. [Also in Divisions B8, C3 and D1] A high shear-strength body comprises a ceramic or refractory matrix 10, parallel spaced primary reinforcement fibres 20, and secondary reinforcement fibres 40 in the form of singlecrystal whiskers. Fibres 20 have a diameter# 3 times that of 40. Fibres 40 may be prepared as described in Specification 1,203,342; they may be regularly or randomly disposed; or, as shown in Fig. 2, they may have a geometrical structure such that the interlaminar shearstrength of the composite is improved. Fibres 20 may be: B, graphite, Si, Be, SiC, Si nitride, Al 2 0 3 , A1N, Al carbide, Al diboride, B carbide, BN, B silicide, W carbide, Ti diboride, Ti nitride, BeO, Be boride, or glass; the fibres may be amorphous or polycrystalline or single crystals, and may be elongated or continuous, or short-length and discontinuous. Fibres 20 may have coating 30, e.g. of inorganic or organometallic materials or metals. Fibres 20 may have diameter 3-100 Ám. Whiskers 40 may be of x-Al 2 O 3  with or of the same composition as fibres 20, and may have diameter 0À1-30 Ám and length 30-6000 Ám, with length: diameter ratio of from 10:1 to 200:1. Matrix 10 may be one of the ceramic or refractory materials listed for the fibres. Particles of matrix 10 may be coated with coating 30. The body may be made by winding fibres 20 on a mandrel, and applying thereover matrix material containing whiskers 40. The body may have cross-section of 2 mil or less; it may be moulded round and retain micrometallic inserts in electronic applications.
Patent GB-104271-A (GB)
Title: A New or Improved Combined Casement Stay and Fastener.
Inventor: POWELL ROLAND
IPC: E05C17/18
Filed: 1916-05-17
Abstract: 104,271. Powell, R., (trading as Perkins & Powell). May 17, 1916. Stays.-A combined casement stay and fastener comprises a stay 6, having notches 9 on one or both edges, connected by a link member 7 having joints in two planes to a nose-piece 3, and then pivoted to a back-plate 1 on the casement. The nose is engaged, in the closed position, with a preferably inclined slot 4 so as to draw the casement tight. The stay notches are engaged, when in the open position, with a recess 10 in a bracket 11, which may be attached to the slotted plate 4. When the stay is notched on both edges, it may be used for right or left hand windows.
Patent GB-622371-A (GB)
Title: Improvements in or relating to mountings for contact members of domestic electrical accessories
IPC: H01R13/453
Filed: 1947-03-13
Abstract: 622,371. Two-part couplings. WALSALL CONDUITS, Ltd., and GOUGH, E. March 13, 1947, No. 7079. [Class 38 (i)] [Also in Group XXXVII] In a socket connector, the contacts 12 are slid along oppositely spaced grooves 25 in the connector body 10 and are retained therein by a set screw 24 which is screwed through a boss 22 rigidly secured to each contact to engage a recess 27 in the body. Each contact comprises a T-shaped strip 14 whose arms 15 are bent face to face forming a socket which is attached to a rigid plate 21 upon which is secured a highly conducting strip 20 connected to a terminal post 13. The edges of the strip 20 are bent upwards to engage the grooves, Fig. 4 (not shown). Specification 608,976 is referred to.
Patent GB-762992-A (GB)
Title: Improvements in or relating to the manufacture of n:n -dibenzylethylenediamine
Inventor: JONES WILLIAM GLYNNE MOSS
Filed: 1954-03-12
Abstract: N : N1-Dibenzylethylenediamine is made by a process which comprises reduction by means of hydrogen in the presence of a finely-divided nickel or cobalt catalyst and in an aqueous acidic medium of a mixture of benzaldehyde and an ethylenediamine salt. Ethylene diamine salts specified are the acetate, hydrochloride and sulphate. Suitable aqueous acidic media include aqueous acetic acid or aqueous alcohols containing acids, e.g. aqueous methanol in the presence of acetic acid.  Suitable catalysts include Raney type nickel and cobalt catalysts and stabilized nickel-kieselguhr catalyst.  The process may be carried out at atmospheric or elevated pressures.  In examples: ethylene diamine hydrate and benzaldehyde are treated with hydrogen under pressure in the presence of aqueous acetic acid and a nickel catalyst prepared by the low temperature decomposition of nickel-aluminium alloy, the latter is filtered off and the product isolated as the dihydrochloride (1); in a similar process a stabilized nickel on kieselguhr catalyst and elevated temperature are employed (2).
Patent GB-307425-A (GB)
Title: Improvements in the construction and working of plate apparatus for effecting exchange of heat
IPC: F28F3/08
Filed: 1929-03-06
Abstract: 307,425. Seligman, R. March 7, 1928, [Convention date]. Plate apparatus. - In a heat exchanger composed of plates furnishing zig-zag channels for the fluid media, the chamnels are arranged so as to cause a retardation or variation in the flow, to attain a desired temperature effect for a determined period of time, means are provided for the rapid escape of condensate from the heating medium, and by means of bye-passes the final temperature is brought under control. The retardation is effected by providing at desired points in the assembly of plates, a plate or plates affording a larger cross-sectional area of flow such as 13. Fig. 4 which has internal baffles 12 to effect a zig-zag path and would be closed on both sides by plane faced plates with channels for the heating or cooling medium. Ports 15, 15', 16, 16', are provided for entry and escape of medium or for carrying medium through to other parts of the apparatus. The Specification as open to inspection under Sect. 91 (3) (a) comprises also shallow plates as in Fig. 6 (Cancelled) which shows ribs 1 for causing a zig-zag path for the treated medium. The adjacent channels for heating medium are provided with parallel ribs 17 for causing steam to flow directly across from the space 18 to the space 18' whereby condensate can be evacuated readily. This subject-matter does not appear in the Specification as accepted.
Patent GB-912663-A (GB)
Title: Improvements relating to voltage and current regulating arrangements
IPC: G05F1/38
Filed: 1959-03-03
Abstract: 912,663. Automatic voltage-control systems. HARMER, H. M. May 27, 1960 [March 3, 1959], No. 7376/59. Drawings to Specification. Class 38 (4). In a voltage-regulating arrangement the emitter to base voltage of a transistor is determined by the difference between a direct reference voltage and the direct voltage across a load. The collector current of the transistor flowing through a control winding of a transductor, connected between an alternating- current source and a bridge rectifier supplying the load, varies the impedance of the transductor so as to maintain the load voltage constant. As applied to the arrangements disclosed in Specifications 637,663 and 797,204, the collector current is derived from a bridge rectifier connected through a transformer to the alternating-current source. A rectifier in series with the emitter of the transistor prevents damage to the transistor by current fed from the load. The reference voltage can be derived from across a Zener diode connected in series with a baretter or by the arrangements as disclosed in Specification 637,663, 797,204 or 912,662.
Patent GB-945041-A (GB)
Title: Improvements in or relating to fungicidal compositions and the preparation of an active ingredient therefor
IPC: C07F7/22
Filed: 1960-03-02
Abstract: Bis(triphenyltin) oxide is produced by reacting triphenyltin hydroxide with carbon dioxide preferably in the presence of solvents such as chloroform, dichloroethane, or other chlorinated hydrocarbons, and decomposing preferably at a temperature from 40-90 DEG C. the resultant intermediate product by removing carbon dioxide liberated, to form bis(triphenyltin) oxide.ALSO:A fungicidal composition comprises as active ingredients bis (triphenyltin) oxide mixed with or suspended or dissolved in a solid or liquid carrier. There may also be included one or more auxiliary substances comprising surface active agents, dispersing agents and adhesives.
Patent GB-434739-A (GB)
Title: Improvements in bodies for motor vehicles with engines at the rear
IPC: B60J1/18
Filed: 1934-03-09
Abstract: 434,739. Vehicle bodies. TENNANT, W. J., 111, Hatton Garden, London.-(Tatra Works, Ltd. Motor Car & Railway Carriage & Wagon Builders ; 200, Kartouzska, Smichov, Prague) March 9, 1934, No. 7577. [Class 108 (i)] In a rear - engined stream-lined vehicle having a partition behind the passenger's space, and an inlet opening closable by a flap for the admission of cooling air, a window extending the whole width of the vehicle is provided in the partition and another window in the hinged flap to permit of a rear view. The rear sloping continuation of the roof 3 is provided with a hinged flap or flaps 8 for the admission of cooling air to the rear engine space 2, and the flaps 8 are provided with windows 9 which are in line with a window 10 positioned in the partition 4 between the passenger compartment 1 and the engine space 2 to permit of observation to the rear. Specification 414,595 is referred to.
Patent GB-990068-A (GB)
Title: Improvements in and relating to cheese
IPC: A23C19/09
Filed: 1962-02-27
Abstract: 990,068. Miniature cheeses. A. MINGIARDI. Feb. 27, 1962 [Nov. 15, 1961], No. 7593/62. Heading A2B. Miniature grating (granular) cheeses having substantially the taste, flavour and shape of full-size matured grating cheeses, e.g. Italian "Grana" cheeses of the Lodi or Parmesan type, are made by removing the rind or crust from one or more than one full-size grating cheese and cutting the cheese into pieces. These are reduced to grains in a grinding machine 2. The grains are mixed in a mixer 4 and passed through a chamber 6, from which air can be evacuated by a pump 6<SP>1</SP> and replaced, if desired, by an inert sterilized gas, and then through a metering device 7, in which the mixture of grains is divided into measured amounts. These are pressed, in vacuo or in an inert gas, into barrel-shaped moulds in the pressing unit 8<SP>1</SP> of a moulding machine 8. The moulded small cheeses are then dipped into molten grating cheese 9 in a dipping machine 10 and thus coated with a layer of molten grating cheese, which is allowed to cool and solidify. The resulting miniature cheeses are then wrapped in impervious wrappings on a machine 11.
Patent GB-194937-A (GB)
Title: Improvements in and relating to nut locks
IPC: F16B39/24
Filed: 1922-03-15
Abstract: 194,937. Hosking, R. T. March 15, 1922. Locking nuts.-A spring washer 1 for locking a nut 4 to the work 6 is made with twisted teeth 3 of such a size that any unscrewing of the nut causes the teeth to roll or turn on themselves by the grip of their edges, the teeth thus acting like a toggle-joint device to prevent unscrewing.
Patent GB-329329-A (GB)
Title: Apparatus for filling valve bags
IPC: B65B1/18
Filed: 1928-12-12
Abstract: 329,329. Marks, Sir G. C., (Bates Valve Bag Corporation). Dec. 12, 1928. Divided on 326,478. Filling bags.-In an apparatus for filling receptacles such as valve bags, wherein a spout mounted on a weighing device is adapted to register with the discharge outlet of a feed hopper the spout being subject to movement transverse to the direction of feed during the filling operation, sealing means is provided, for example. a felt washer, surrounding the outlet and adapted to prevent the escape of material passing into the spout while not interfering with the movement of the weighing device. The invention is described as applied to a filling and weighing apparatus of the type described in Specification 326,478, according to which, material is fed from a supply hopper to a discharge outlet 24 and thence passes through a feed spout 47 carried by a. bag support mounted on the weighbeam. In filling a valve bag, the valve opening of the bag is drawn over the feed spout, and both the bag and the spout are free to move vertically relative to the outlet 24. According to the invention the open joint between the spout and the outlet is closed by a washer 123 of felt or similar material pressed into contact with a flange 46 on the spout by a. spring 124.
Patent GB-441966-A (GB)
Title: Improvements in or relating to wheels for vehicles
IPC: B60B37/10
Filed: 1935-03-12
Abstract: 441,966. Annular-track wheels for vehicles &c. MARRIOTT, A. G. F., Bower Cottage, Ashby Road, Loughborough, Leicestershire. March 12, 1935, No. 7699. [Class 79 (i)] In a wheel for road and other vehicles and portable machinery, such as mixing machines, having a series of anti-friction rollers 4 between an inner wheel 2 and an annular rim 1, the rollers 4 have circumferential flanges 4a engaging grooves 1a, 2a in the rim 1 and wheel 2 respectively to prevent endwise movement of the rollers, the flanges 4a being parallel-sided whilst the grooves are dovetailed in cross - section to prevent flat facial contact between the flanges and the sides of the groove. There is a clearance between the peripheries of the flanges and the bottom of the grooves so that the bearing pressure of the rim 1 is taken wholly by the parts of the rollers adjacent the flanges. The flanges may be provided on the wheel parts and the grooves in the rollers. The rollers 4 are spaced circumferentially by spacing plates or rings 7 through holes in which the reduced ends 4b of the rollers project and receive keys 9. Small antifriction rollers 8 are provided between the roller ends 4b and the plates 7. Cover plates or rings 10, 11 are provided to close the sides of the wheel wholly or partially.
Patent GB-101521-A (GB)
Title: An Improved One Way Friction Clutch.
IPC: F02N1/00
Filed: 1916-05-31
Abstract: 101,521. Royce, F. H., Day, B. I., and Rolls-Royce, Ltd. May 31, 1916. Turning-gear.-In free-wheel clutches combined with means for preventing reverse movement of the driving-parts and particularly applicable for use in engine turning-gear, the driving-shaft b carries a screw c engaging a screwed sleeve d<1> forming the presser plate of a Weston plate clutch connecting the sleeve d<1> and the driven crankshaft a. A spring-pressed pivoted pawl k carried in the framing f prevents back-firing effects.
Patent GB-564152-A (GB)
Title: Improvements in and relating to chain saws
IPC: B27B33/14
Filed: 1943-05-14
Abstract: 564,152. Chain saws. SPEAR & JACKSON, Ltd., and TAYLOR, G. May 14, 1943, No. 7718. [Class 145 (ii)] In a chain saw comprising a central series of links having teeth and outer series of links inter-pivoted with the central series and having teeth on alternate links, the central series runs on the track e of the guide bar f and the outer series overlap and run astride of the track. The teeth on the central links repeat every three .links and comprise raker teeth A, G, right hand set C, I, and left hand set E, K, whilst the teeth on one outer series are all left hand set B, F, J, and those on the other outer series are all right hand set D, H, L. The arrangement provides a zig-zag line of single teeth in the sequence A-L.
Patent GB-497782-A (GB)
Title: An improved manufacture of lubricants
IPC: C10M147/02
Filed: 1938-03-12
Abstract: A lubricating-composition comprises a lubricating oil and a soluble halogenated linear polymer other than a polymer and an acetylenic hydrocarbon containing 2-10 per cent of combined halogen.  The amount of polymer added may vary from 0,01 to 50 per cent and the mol. wt. of the polymer may vary from 800 to 150,000.  Preferred polymers are saturated linear aliphatic hydrocarbon polymers such as chlorinated polyisobutylene; chlorinated hydro rubber may also be used.  In an example, coastal oil is heated and small pieces of polyisobutylene of about 40,000 mol. wt. and chlorinated to about 5 per cent by weight are dissolved in the oil till about 5 per cent of the chlorinated polymer is dissolved.  The viscosity at 100 DEG  F. is raised from 210 to 844.  Other examples mention chlorinated polymerized lauryl acrylate and chlorinated hydro rubber as the added substance.
Patent GB-937909-A (GB)
Title: Multi-cell electrodialysis apparatus
IPC: B01D61/50
Filed: 1961-03-02
Abstract: 937,909. Dialysis apparatus. ASAHI KASEI KOGYO KABUSHIKI KAISHA. March 2, 1961 [March 23, 1980], No 7741/61. Class 41. A dialysis apparatus consists of alternate cationic and anionic membranes forming chambers with spacers and clamping frames, with holes provided at the edges thereof to form ducts through which the fluids flow, the ducts being provided with compressible inserts which are thinner than the spacer and having projections at right-angles to the face of the spacer, and which extend when unstressed beyond the face of the spacer whereby when the assembly is clamped together, leakage of liquid is prevented. Preferably the inserts are such that when compressed they lie within the thickness of the spacer frame. A typical form of the many described is shown in Fig. 9, where the insert 32 consists of a thin sheet having projections 23 which extend slightly beyond the thickness of the frame 22, and may be of the same or different material, e.g. rubber, polymers, polyester and other resins, but natural or synthetic rubbers are preferred. The projections 23 may be of prismatic, cylindrical or part-spherical in shape, the distance between the projections being less than the diameter of the projections. The spacers used may be of synthetic hard fibre, e.g. P.V.C. fibre, woven into an open-mesh gauze fabric.
Patent GB-1177096-A (GB)
Title: Nitrogenous Fertilizers and process for preparing same
Inventor: KAMLET JONAS
IPC: C05C9/00
Filed: 1967-02-17
Abstract: 1,177,096. Biuret. E. Y. KAMLET. 17 Feb., 1967 [24 Feb., 1966], No. 7767/67. Heading C2C. [Also in Division C1] Urea is heated at 120-205‹ C., the biuret produced is dissolved in boiling water, and a biuret product which is at least 95% pure and is free from ammonium cyanate and ammelid is crystallized from the solution. The mother liquor may be dried and recycled to the biuret production step.
Patent GB-328381-A (GB)
Title: Improvements in the manufacture and production of aliphatic or cyclic primary amines
Filed: 1929-03-11
Abstract: 328,381. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). March 11, 1929. Amines; propyl alcohol.-Aliphatic or aromatic primary amines are prepared by treating unsaturated aliphatic or aromatic aldehydes or ketones in the vapour phase and at a raised temperature with hydrogen and ammonia in the presence of an hydrogenating catalyst. The process may be conducted cyclically by circulating the mixture of hydrogen and ammonia., and in order to avoid resinification of the aldehyde or ketone, the vapour of the latter, mixed with fresh hydrogen, is led to the reaction vessel and mixed therein with the preheated circulating mixture of hydrogen and ammonia. Fresh ammonia is also added to the circulating mixture, in accordance with the consumption. The preferred hydrogenation catalysts are those containing a metal of the eighth periodic group and activating additions of difficultly reducible oxides of metals of the fifth and sixth groups. According to the examples, (1) crotonaldehyde, ammonia, and hydogen are passed at 130‹ C. over a catalyst prepared by drying a paste of nickel oxide, cobalt carbonate, and chromic acid solution, applying the powder, together with colloidal silica, on to granular pumice, and then reducing with hydrogen; nbutylamine and some dibutylamine are obtained; (2) acrolein, ammonia, and hydrogen are passed at 125‹ C. over a catalyst prepared by depositing a paste of nickel oxide and colloidal silica on pumice ; and then reducing with hydrogen; n-propylamine and a little propyl alcohol are obtained; (3) cinnamic aldehyde, ammonia, and hydrogen are passed at 150‹ C. over the same catalyst as in example 2, whereby gamma-phenyl-n-propylamine is obtained. Specification 265,960 is referred to.
Patent GB-372026-A (GB)
Title: Improved reflectors
IPC: H01K1/32
Filed: 1931-03-14
Abstract: 372,026. Partly-reflecting lamp bulbs, shades, &c. MORGAN, H. R., 10, Clifford's Inn, London. March 14, 1931, No. 7919. [Classes 39 (ii), 75 (ii), and 75 (iv).] An electric lamp bulb or other glass part, such as a glass shade, through which light passes, and part of which is made reflecting by silvering or otherwise, is so treated that the demarcation between reflecting and non-reflecting portions is not abrupt. The bulb is partially silvered in a pattern of dots at c, the dots decreasing in size at b towards the clear portion a. Lines as shown in Fig. 3 may be used instead of dots. A resist may be applied in the required pattern before silvering, or a pattern of resist applied after uniform silvering, the silver then being copperplated and the surface buffed, so that unprotected silver, is removed. An irregular grain of dots, such as an aquatint grain, is formed by dropping powder on the surface, bv applying the resist by an evaporative vehicle, or by using a coarse spray. The area of the dots may be equal to the area between them, so that in the bulb of Fig. 1 the light emerging in one half is three times that in the other. Part of the glass may be completely covered by the reflecting means. The bulb of Fig. 1 may be used in a miners' lamp. Patterning may be arranged so that illumination is greater in one part of the field according to a definite shape. In a motor car head-lamp, part of the front and part of the bottom or other part oi the bulb may be partially reflecting. A bulb for household purposes has a silvered annular zone near the filament, shaded off above and below by thick and thin lines succesively.
Patent GB-345085-A (GB)
IPC: H04L5/06
Filed: 1930-03-12
Abstract: 345,085. Wired wireless signalling. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London. -(Assignees of Rea, W. T. ; 35, 156th Street, Flushing, New York, U.S.A.) March 12, 1930, No. 8031. Convention date, June 25, 1929. [Class 40 (v).] A carrier-current telegraph system comprises two stations interconnected by a four-wire transmission circuit and a generator at one station the energy from which is utilized for transmission in both directions, one side of the four-wire circuit being used for transmission in one direction and the other side of the circuit for transmission in the opposite direction. The figure shows a generator 5 controlled by transmitting circuits 1, 15 which control receiving circuit 11 over line LW and receiving circuit 27 over line LE. The keying circuit 3 signals by short-circuiting the generator 5 and withdrawing energy from the line. At the remote station a coupling 17, 18 transfers the energy to the line LE during signalling. A resistance 19 is provided in this circuit to avoid short-circuiting the receiving relay 14.